This is a single page application that I built using vanilla.JS for a class project. This web
application demonstrates how to build SPA without the use of any framework like Angular, React.js or
Vue.js..
This is a web application
that contains reports of my research on the variety of technologies that we were assigned to study
during the summer of my 1st year of Msc. Software Quality (MQL)
A single-page application is an app that works inside a browser and does not require page reloading
during use. You are using this type of applications every day. These are, for instance: Gmail,
Google Maps, Facebook or GitHub.
SPAs are all about serving an outstanding UX
by trying to imitate a natural environment in the browser, no page reloads, no extra wait time. It
is just one web page that you visit which then loads
all other content using JavaScript, which they heavily depend on.
Let's mention some advantages of using SPA :
Performance: SPA diminish the necessity of the browser to perform requests to the server which impact in the velocity of our application and the user experience.
Better UX : Since the velocity of the application is improved the user iteration flows and feels better.
Of course, there are also disadvantages, let’s mention some:
Heavy first load : Since the first load of the app may be loading a bunch of resources it might feel slow.
Security : SPA apps are less secure since it enables hackers to perform Cross-Site Scripting.
MyVanillaSPA is a single page application (SPA) created using plain Javascript, without the use of any framework. The purpose of making this web app is to use my skills in Software developement and Web design to create an academic report for my summer research on Software Engineering related techniques, technologies, and methodologies. This application may also represents a prototype for e-learning / tutorial websites.
This application was built using Javascript, HTML5, and CSS3.


Are you sure?
All columns and elements in this section will be deleted. Are you sure?
All elements in this column will be deleted. Are you sure?
Select the sizes of the top and bottom cell.
Here is the resulting wikitext:
| A | B |
|---|---|
|
1 2 3 4 5 6
|
1 2
|


Stock item to location:
Default Title
Items available
Menu
Location #
Quantity
Stock Item
Stock
Items in stock
Menu
Location #
Quantity
Sold Item
Return


WHY:
Do you get enough sleep during the school year? If not, what keeps you from being well rested?
Do you wish your school day started later? In your opinion, what would be the advantages and drawbacks of a later start time?
In “California Tells Schools to Start Later, Giving Teenagers More Sleep,” Christine Hauser and Isabella Kwai write about a new California law that pushes back start times at most public middle and high schools. The law cites research that says attendance and performance will improve if teenagers get more sleep. The article states:
The passage of the law followed years of mounting calls for later school start times from sleep experts who said such a move would optimize learning, reduce tardiness and contribute to overall well-being. The law encourages districts to publish research on their websites about the impact of sleep deprivation on adolescents.
A frequently cited policy statement from the American Academy of Pediatrics, made in 2014, called insufficient sleep for adolescents a “public health issue” and recommended that most schools start no earlier than 8:30 a.m. The American Academy of Sleep Medicine agreed.
In one 2006 poll from the National Sleep Foundation, 45 percent of adolescents in the United States said they slept for an insufficient length of time on school nights, and 19 percent of students said they fell asleep in school at least once a week.
Another study, published in 2017 by the University of Minnesota, which surveyed 9,000 students across five school districts with varying start times, found that those who started school later slept more. Students who had more sleep reported better mental health outcomes and less use of substances like alcohol and cigarettes. Students who slept more also had improved attendance and enrollment rates, and they were less likely to drive while drowsy.
About 90 percent of high schools and 80 percent of middle schools in the nation start before 8:30 a.m., the Centers for Disease Control and Prevention said in 2014.
Month
Time
Every Month
8:10am
School Starts at every morning.
I have school on.
Note : Sleep/Water/Eating Healthy benefits your grades
These are some ideas for school start and end time:


class: center, middle, inverse, title-slide # Geography 176A ## Lecture 18: Raster Manipulation ### Mike Johnson ---  # Yesterday - Introduced the raster data structure -- - The idea of color scales through RGB channels and color ramps --- # 1. Bounding Box / Extents **Geometries** have extents that define the maximum and minimum coverage of the shape in a coordinate reference system

Image Source: National Ecological Observatory Network (NEON)

 --- # 2. Extent - When dealing with objects, the extent (or bbox) is derived from the coordinate set -- - When dealing with raster data, the extent is a fondational component of the raster data structure -- - That is, we need to know the area the raster is covering!

Image Source: National Ecological Observatory Network (NEON)

 --- # 3. Discretization Once we know the **extent**, we need to know _how_ that space is split up -- Two complimentary bit of information can tell us this: - Resolution (res) - Number of row and number of columns (nrow/ncol)

Image Source: National Ecological Observatory Network (NEON)

 --- # So, A raster is made of an **extent**, and a **resolution** / row-column structure -- - A vector of values fill that structure (same way a vector in R can have diminisons) - These values are often scaled to integers to reduce file size -- - Values are referenced in cartisian space, based on cell index -- - A CRS along with the extent, can provide spatial reference / coordinates --- # ENVI HDR Files

Image Source: National Ecological Observatory Network (NEON)

 --- # ENVI Data Ingest

ENVI HDR File

 ---

ENVI file load

 --- Almost all remote sensing / image analysis begins with the same basic steps: 1. Identifying an area of interest (AOI) 2. Identifying and downloading the relevant images or products 3. Analyzing the raster products -- The definition of a AOI is critical because raster data in continuous, therefore we need to define the bounds of the study rather then the bounds of the objects -- - **But**, objects often (even typically) define our bounds --- ## Yesterdays Assignment Find elevation data for Goleta: - Define the AOI ```r bb = read_csv("../labs/lab-01/data/uscities.csv") %>% st_as_sf(coords = c("lng", "lat"), crs = 4326) %>% filter(city == "Goleta") %>% st_transform(5070) %>% st_buffer(5000) %>% st_bbox() %>% st_as_sfc() %>% st_as_sf() ``` -- - Read data from elevation map tiles, for a specific zoom, and crop to the AOI ```r elev = elevatr::get_elev_raster(bb, z = 11) %>% crop(bb) writeRaster(elev, filename = "data/goleta-elev.tif", overwrite = TRUE) ``` --- - The resulting raster ... ```r (elev = raster("data/goleta-elev.tif")) ``` ``` class : RasterLayer dimensions : 318, 318, 101124 (nrow, ncol, ncell) resolution : 31.45065, 31.45065 (x, y) extent : -2157752, -2147751, 1530395, 1540396 (xmin, xmax, ymin, ymax) crs : +proj=aea +lat_1=29.5 +lat_2=45.5 +lat_0=23 +lon_0=-96 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs source : /Users/mikejohnson/github/spds/lectures/data/goleta-elev.tif names : goleta.elev values : -70, 501 (min, max) ``` --  --- # Raster Values ```r v = values(elev) class(v) ``` ``` [1] "numeric" ``` ```r length(v) ``` ``` [1] 101124 ``` -- ```r elev ``` ``` class : RasterLayer dimensions : 318, 318, 101124 (nrow, ncol, ncell) resolution : 31.45065, 31.45065 (x, y) extent : -2157752, -2147751, 1530395, 1540396 (xmin, xmax, ymin, ymax) crs : +proj=aea +lat_1=29.5 +lat_2=45.5 +lat_0=23 +lon_0=-96 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs source : /Users/mikejohnson/github/spds/lectures/data/goleta-elev.tif names : goleta.elev values : -70, 501 (min, max) ``` --- # Raster Values ```r # The length of the vector is equal to the rows * columns length(v) == nrow(elev) * ncol(elev) ``` ``` [1] TRUE ``` ```r # The span of the x extent divided by the resolution equals the raster rows (xmax(elev) - xmin(elev) ) / res(elev)[1] == nrow(elev) ``` ``` [1] TRUE ``` ```r # The span of the x extent divided by the number of rows equals the raster resolution (xmax(elev) - xmin(elev) ) / nrow(elev) == res(elev)[1] ``` ``` [1] TRUE ``` --- ## All image files are the same! ```r download.file(url = "https://a.tile.openstreetmap.org/18/43803/104352.png", destfile = "data/104352.png") img = readPNG("data/104352.png") class(img) ``` ``` [1] "array" ``` ```r typeof(img) ``` ``` [1] "double" ``` ```r dim(img) ``` ``` [1] 256 256 3 ``` --- ```r img[1,1,1:3] ``` ``` [1] 1.0000000 0.9607843 0.8980392 ``` ```r rgb(1.0000000, 0.9607843, 0.8980392) ``` ``` [1] "#FFF5E5" ```

Google Color Picker

 --- .pull-left[ ![](data/104352.png) ] .pull-right[ ![](lec-img/18-color-picker.png) ] --- # Raster Algebra So our raster **data** is stored as a large numeric array/vector -- Many generic functions allow for simple algebra on Raster objects, -- These include: - normal algebraic operators such as `+`, `-`, `*`, `/` -- - logical operators such as `>`, `>=`, `<`,` ==`, `!` -- - functions like `abs`, `round`, `ceiling`, `floor`, `trunc`, `sqrt`, `log`, `log10`, `exp`, `cos`, `sin`, `atan`, `tan`, `max`, `min`, `range`, `prod`, `sum`, `any`, `all` -- *** In these functions you can mix `raster` objects with numbers, as long as the *first* argument is a raster object. That means you can add 100 to a raster object but not a raster object to 100 ```r # GOOD raster + 100 # BAD 100 + raster ``` --- ### For example: ```r elev + 100 ``` ``` class : RasterLayer dimensions : 318, 318, 101124 (nrow, ncol, ncell) resolution : 31.45065, 31.45065 (x, y) extent : -2157752, -2147751, 1530395, 1540396 (xmin, xmax, ymin, ymax) crs : +proj=aea +lat_1=29.5 +lat_2=45.5 +lat_0=23 +lon_0=-96 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs source : memory names : goleta.elev values : 30, 601 (min, max) ``` ```r log10(elev) ``` ``` class : RasterLayer dimensions : 318, 318, 101124 (nrow, ncol, ncell) resolution : 31.45065, 31.45065 (x, y) extent : -2157752, -2147751, 1530395, 1540396 (xmin, xmax, ymin, ymax) crs : +proj=aea +lat_1=29.5 +lat_2=45.5 +lat_0=23 +lon_0=-96 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs source : memory names : layer values : -Inf, 2.699838 (min, max) ``` --- # Replacement - Raster values can be replaced on a conditional statements - Doing this changes the underlying data! - If you want to retain the original data, you must make a copy of the base layer .pull-left[ ```r plot(elev) ```  ] .pull-right[ ```r *elev2 = elev *elev2[elev2 <= 0] = NA plot(elev2) ```  ] --- # Modifying a raster When we want to modify the **extent** of a raster we can _clip_ it to a new bounds `crop`: lets you reduce the extent of a raster to the extent of another, overlapping object: .pull-left[ ```r #remotes::install_github("mikejohnson51/AOI") ucsb = AOI::aoi_get("UCSB") %>% st_transform(crs(elev2)) plot(elev2) plot(ucsb, add = TRUE, col = NA) ```  ] .pull-right[ ```r *ucsb_elev = crop(elev2, ucsb) plot(ucsb_elev) ```  ] --- # Modifying the underlying data: `mask`: mask takes an input object (sf, sp, or raster) and set anything not undelying the input to a new value (default = NA) ```r library(osmdata) osm = osmdata::opq(st_transform(bb,4326)) %>% add_osm_feature("water", "lagoon") %>% osmdata_sf() (poly = osm$osm_polygons %>% st_transform(crs(elev)) %>% filter(name == "Campus Lagoon")) ``` ``` Simple feature collection with 1 feature and 18 fields geometry type: POLYGON dimension: XY bbox: xmin: -2152710 ymin: 1531820 xmax: -2152148 ymax: 1532510 CRS: +proj=aea +lat_1=29.5 +lat_2=45.5 +lat_0=23 +lon_0=-96 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs osm_id name addr.state attribution description ele gnis.county_name gnis.created 23144668 23144668 Campus Lagoon CA USGS NHD <NA> 2 Santa Barbara 12/02/1996 gnis.feature_id gnis.feature_type intermittent natural nhd.way_id salt 23144668 1702872 Swamp <NA> water 27713959 yes source source_ref tidal water geometry 23144668 nhd_import_v0.1_20080127120618 geonames.usgs.gov <NA> lagoon POLYGON ((-2152197 1531843,... ``` --- .pull-left[ ```r plot(elev2) plot(poly, col = "blue", add = TRUE) ```  ] .pull-right[ ```r ma = raster::mask(ucsb_elev, poly) ma2 = raster::mask(ucsb_elev, poly, inverse = TRUE) plot(stack(ucsb_elev, ma, ma2)) ```  ] --- # What is `mask` doing? ```r NA * 7 ``` ``` [1] NA ``` -- ```r mask_r = fasterize::fasterize(poly, ucsb_elev, background = NA) plot(mask_r) ```  --- ```r base_mask = mask_r * ucsb_elev plot(base_mask) ```  --- # Base raster::rasterize is slow... This means on large rasters, mask is slow.. -- ```r system.time({ fasterize::fasterize(poly, elev2, background = NA) }) ``` ``` user system elapsed 0.001 0.001 0.002 ``` ```r system.time({ raster::rasterize(poly, elev2, background = NA) }) ``` ``` user system elapsed 0.391 0.050 0.489 ``` --- # Crop or/and mask - Crop is more efficient then mask - Often you will want to mask and crop a raster - The correct way to do this is crop _then_ mask ```r cm = crop(ucsb_elev, poly) %>% mask(poly) plot(cm) ```  --- # Aggregate and disaggregate - `aggregate` and `disaggregate` allow for changing the _resolution_ of a Raster object. -- - This is similar to the zoom scaling on a web map except the scale factor is not set to 2 -- - For aggregate, you need to specify a function determining what to do with the grouped cell values (default = mean). .pull-left[ ```r plot(ucsb_elev) plot(rpoly, add = T) ```  ] .pull-right[ ```r *agg = aggregate(ucsb_elev, 10, fun = max) plot(agg) plot(rpoly, add = T) ```  ] --- ### `calc` Just like a vector, we can apply functions over a raster with `calc` These types of formulas are very useful for thresholding analysis *Question: separate Goleta into the higher and lower elevations* ```r FUN = function(x){ ifelse(x < mean(x), 1, 2) } ``` -- ```r *elev3 = calc(elev, FUN) plot(elev3, col = c("red", "blue")) ```  --- # Summary Values `cellStats`: computes statistics for the values of each layer in a Raster* object. ```r cellStats(elev, mean) ``` ``` [1] 44.509 ``` ```r mean(values(elev), na.rm = TRUE) ``` ``` [1] 44.509 ``` --- # Why not just `mean()` In the raster package, functions like `max`, `min`, and `mean`, return a new Raster* object (with a value computed for each cell). In contrast, `cellStats` returns a single value, computed from the all the values of a layer. .pull-left[ ```r s = stack(elev, elev^2, elev*.5) mean(s) %>% plot() ```  ] .pull-right[ ```r cellStats(s, mean) ``` ``` goleta.elev.1 goleta.elev.2 goleta.elev.3 44.5090 8186.4259 22.2545 ``` ] --- ### reclassify A common taks in raster analysis in reclassifying existing values to new values or bins: ```r (quarts = cellStats(elev2, fivenum)) ``` ``` [1] 1 13 37 102 501 ``` ```r (rcl = data.frame(quarts[1:4], quarts[2:5], 1:4)) ``` ``` quarts.1.4. quarts.2.5. X1.4 1 1 13 1 2 13 37 2 3 37 102 3 4 102 501 4 ``` --- ```r reclassify(elev2, rcl, include.lowest=TRUE ) %>% plot(col = viridis::viridis(4)) ```  --- ### Real Example: Rainfall Regions of California ```r #remotes::install_github("mikejohnson51/climateR") library(climateR) AOI = USAboundaries::us_states() %>% filter(name == "California") system.time({ prcp = climateR::getTerraClim(AOI, "prcp", startDate = "2000-01-01", endDate = '2005-12-31') }) ``` ``` user system elapsed 2.314 0.370 6.522 ``` -- ```r prcp$prcp ``` ``` class : RasterStack dimensions : 229, 247, 56563, 72 (nrow, ncol, ncell, nlayers) resolution : 0.04149798, 0.04148472 (x, y) extent : -124.3958, -114.1458, 32.52083, 42.02083 (xmin, xmax, ymin, ymax) crs : +proj=longlat +a=6378137 +f=0.00335281066474748 +pm=0 +no_defs names : X2000.01, X2000.02, X2000.03, X2000.04, X2000.05, X2000.06, X2000.07, X2000.08, X2000.09, X2000.10, X2000.11, X2000.12, X2001.01, X2001.02, X2001.03, ... min values : 0, 2, 4, 0, 0, 0, 0, 0, 0, 3, 0, 0, 3, 5, 2, ... max values : 605, 598, 165, 291, 124, 59, 66, 99, 60, 235, 151, 158, 301, 319, 170, ... ``` --- .pull-left[ ### cellStats ```r plot(cellStats(prcp$prcp, max), type = "l", ylab = "rainfall", xlab = "month since 2000-01") lines(cellStats(prcp$prcp, min), type = "l") lines(cellStats(prcp$prcp, mean), type = "l", col = "darkred", lwd = 2) ```  ] .pull-right[ ### mean() ```r plot(mean(prcp$prcp), col = blues9) plot(AOI, add =TRUE, col = NA, lwd = 2) ```  ] --- ```r quarts = cellStats(prcp$prcp, fivenum) (quarts = rowMeans(quarts)) ``` ``` [1] 1.208333 9.361111 19.875000 45.986111 233.833333 ``` ```r (rcl = data.frame(quarts[1:4], quarts[2:5], 1:4)) ``` ``` quarts.1.4. quarts.2.5. X1.4 1 1.208333 9.361111 1 2 9.361111 19.875000 2 3 19.875000 45.986111 3 4 45.986111 233.833333 4 ``` --- ```r reclassify(mean(prcp$prcp), rcl, include.lowest=TRUE ) %>% plot(col = blues9) ```  --- # Daily Assignment In the same Rmd file as yesterday: - Start with your Goleta elevation raster - Use `calc` to threshold your raster so that values greater then 0 are equal to 1 and values less (or equal) to zero are equal to NA - `Multiply` that raster by the original elevation data to isolate the land cells - `Reclassify` the raster into 6 classes with breaks at even 100m intervals (think of these as topo lines) - stack your three rasters - use `setNames()` to change the names of the layers - plot the stack using the `viridis::viridis` color palette --- Your final result should look similar to this:  --- # Submission Submit your knit HTML file to Gauchospace


maker
char set:
text height:
default width:
start
font data
import
sample output
Down with SELF.
problems
text overflow is dumb
spaces at the end of a line don't wrap
no newline support
todo
import font into editor


Performance test report
Test instructions
- In this performance test, the performance of all Dubbo 2.0 supported protocols in different sizes and data types is tested and compared with the Dubbo 1.0.
- The overall performance is increased by 1.0 compared with 10%, and the average increase is 10%. The performance improvement of 10%~50% can also be achieved by using the new Dubbo serialization of Dubbo 2.0 .
- In the stability test, because the underlying communication framework is changed from Mina to netty, the growth of objects in old area is greatly reduced, and the 50 hour operation increases less than 200m and no fullgc.
- There is a problem: performance of 2.0 is less than 1.0 in 50K data, and it is doubted that it may be a buffer setting problem, and the next version will be further confirmed.
Test environment
Hardware deployment and parameter adjustment
| Model | CPU | Memory | Network | Disk | Kernel |
|---|---|---|---|---|---|
| Tecal BH620 | model name : Intel(R) Xeon(R) CPU E5520 @ 2.27GHz cache size : 8192 KB processor_count : 16 | Total System Memory: 6G Hardware Memory Info: Size: 4096MB | eth0: Link is up at 1000 Mbps, full duplex. peth0: Link is up at 1000 Mbps, full duplex. | /dev/sda: 597.9 GB | 2.6.18-128.el5xen x86_64 |
Software architecture
| Software name and version | key parameter |
|---|---|
| java version "1.6.0_18" Java(TM) SE Runtime Environment (build 1.6.0_18-b07) Java HotSpot(TM) 64-Bit Server VM (build 16.0-b13, mixed mode) | -server -Xmx2g -Xms2g -Xmn256m -XX:PermSize=128m -Xss256k -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:LargePageSizeInBytes=128m -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=70 |
| jboss-4.0.5.GA | |
| httpd-2.0.61 | KeepAlive On MaxKeepAliveRequests 100000 KeepAliveTimeout 180 MaxRequestsPerChild 1000000 |
Test purpose
Expected performance indicators (quantized)
| Scene name | Corresponding index name | Range of expected values | Actual value | Whether or not to meet expectations (yes / no) |
|---|---|---|---|---|
| 1k data | Response time | 0.9ms | 0.79ms | Yes |
| 1k data | TPS | 10000 | 11994 | Yes |
Expected operating conditions (non quantified, optional)
- The performance of 2.0 is not less than 1, and the performance of the intermodulation of 2.0 and 1.0 is not significantly reduced. In addition to 50K string, the rest are passed
- JVM memory is running stable, no OOM, and there is no reasonable large object in the heap memory. Passed
- CPU, memory, network, disk, file handle are occupied smoothly. Passed
- There is no frequent thread lock, and the number of threads is stable. Passed
- Business thread load balance. Passed
Test script
-
Performance test scence (10 concurrency)
- Pass in 1K String, do not do anything, return the original
- Pass in 50K String, do not do anything, return the original
- Pass in 200K String, do not do anything, return the original
- Incoming 1K POJO (nested complex person objects) without any processing, return to the original
The above scenario is tested for 10 minutes in Dubbo 1.0, Dubbo 2.0 (hessian2 serialization), Dubbo 2.0 (Dubbo serialization), RMI, Hessian 3.2.0, HTTP (JSON serialization). It mainly examines the performance of serialization and network IO, so the server has no business logic. 10 is to consider the concurrent HTTP protocol in high with the use of CPU high rate may hit the bottleneck. 1. Concurrent scene (20 concurrency) 1K String is introduced into the server segment for 1W times, and a random number is regenerated each time and then assembled. Examine whether business threads can be assigned to each CPU.
-
Stability scence (20 concurrency) At the same time, we call the 1 parameter String (5K) method, the 1 parameter is the person object method, the 1 parameter is map (the value is 3 person), and it runs for 50 hours continuously.
-
High pressure scene (20 concurrency) On the basis of the stability scenario, the providers and consumers are arranged into 2 sets (one machine and 2 instances), and the parameters of String are 20byte to 200K, and are randomly transformed every 10 minutes.
Test result
Scene name: scence POJO
| TPS success avg value | Response time avg value(ms) | |
|---|---|---|
| dubbo1 (hessian2 serialization+mina) | 10813.5 | 0.9 |
| dubbo2 (hessian2 serialization+netty) | 11994 | 0.79 |
| dubbo2 (dubbo serialization+netty) | 13620 | 0.67 |
| rmi | 2461.79 | 4 |
| hessian | 2417.7 | 4.1 |
| http（json serialization） | 8179.08 | 1.15 |
| The default percentage of 2.0 and 1.0 | 10.92 | -12.22 |
| Dubbo serialization compared to the percentage of hessian2 serialization | 13.56 | -15.19 |
POJO TPS
POJO Response
Scene name: scence 1k string
| TPS success avg value | Response time avg value(ms) | |
|---|---|---|
| dubbo1（hessian2 serialization+mina） | 11940 | 0.8 |
| dubbo2 (hessian2 serialization+netty) | 14402 | 0.64 |
| dubbo2 (dubbo serialization+netty) | 15096 | 0.6 |
| rmi | 11136.02 | 0.81 |
| hessian | 11426.83 | 0.79 |
| http（json serialization） | 8919.27 | 1.04 |
| The default percentage of 2.0 and 1.0 | 20.62 | -20.00 |
| Dubbo serialization compared to the percentage of hessian2 serialization | 4.82 | -6.25 |
1k TPS
1k Response
Scene name: scence 50k string
| TPS success avg value | Response time avg value(ms) |
|---|---|
| dubbo1（hessian2 serialization+mina | 1962.7 |
| dubbo2 (hessian2 serialization+netty) | 1293 |
| dubbo2 (dubbo serialization+netty) | 1966 |
| rmi | 3349.88 |
| hessian | 1925.33 |
| http（json serialization） | 3247.1 |
| The default percentage of 2.0 and 1.0 | -34.12 |
| Dubbo serialization compared to the percentage of hessian2 serialization | 52.05 |
50K TPS
50K Response
Scene name: scence 200k string
| TPS success avg value | Response time avg value(ms) |
|---|---|
| dubbo1（hessian2 serialization+mina） | 324.2 |
| dubbo2 (hessian2 serialization+netty) | 362.92 |
| dubbo2 (dubbo serialization+netty) | 569.5 |
| rmi | 1031.28 |
| hessian | 628.06 |
| http（json serialization） | 1011.97 |
| The default percentage of 2.0 and 1.0 | 11.94 |
| Dubbo serialization compared to the percentage of hessian2 serialization | 56.92 |
200K TPS
200K Response
Test analysis
Performance analysis and evaluation
The performance test conclusion of Dubbo 2 has been improved and improved from performance, memory footprint and stability. Because of its memory management, the change of Mina into netty greatly reduces the 1 version of the large memory sawtooth in high concurrency and large data.
Performance comparison analysis (new and old environment, different data magnitude, etc.)
The performance of Dubbo 2 is compared with that of Dubbo 1, which is all hessian2 serialization. The performance is improved (except for 50K String). See the performance data of the fifth chapter in detail.
For compatibility default serialization and 1 consistent with hessian2, such as have higher requirements on the performance of Dubbo serialization can be used, which is in the process of complicated object, can be obtained in 50% large data upgrade (but it is not recommended for use Dubbo protocol).
The purpose of Dubbo is to meet the RPC calls with high concurrent and small data volume. The performance is not good under large data volume. It is recommended to use RMI or HTTP protocol.
Test limitation analysis (optional)
This performance test examines the performance of the Dubbo itself, and the performance of the actual use needs to be verified.
Because the performance of Dubbo itself is in millisecond and the base number is small, performance improvement may not change the performance of the application as a whole.
All the monitoring charts are not listed because of the limit of length.


--- title: Enclave gRPC Server Configuration overview: API to configure a basic enclave gRPC server. location: https://asylo.dev/docs/reference/proto/grpc/asylo.enclave_server.v1.html layout: protoc-gen-docs redirect_from: /docs/reference/proto/status.html redirect_from: /docs/reference/proto/identity/identity.html redirect_from: /docs/reference/proto/identity/enclave_assertion_authority_config.html redirect_from: /docs/reference/proto/enclave.html redirect_from: /docs/reference/proto/grpc/enclave_server.html number_of_entries: 1 ---
This package defines the messages for communicating with an Asylo enclave’s entry-points: initialization, (re-entrant) execution input and output, and finalization.
Configuration passed to an enclave gRPC server during initialization.


Create & restore backups.
Create You will download a current snapshot of the database. It is recomanded to do this on a regular basis.
Restore This will replace the current database with the contents of the file. You will automatically be logged out.


{% extends "base.html" %} {% block content %}
We regret to inform you that you were not admitted to MenloHacks. We hope to see you at next year's event.


Utiliser PHPUnit pour le framework Recisio
Result
.
: test succeeds
F
: assertion fails while running the test method
E
: error occurs while running the test method
R
: test has been marked as risky
S
: test has been skipped
I
: test is marked as being incomplete or not yet implemented
Fixtures
- setUp() / tearDown()
- setUpBeforeClass() / tearDownAfterClass()
Global State
-
It is hard to test code coupled strongly with a global variable and cannot control creation.
(change to a global variable might break another test)
- What's a global variable ?
- global variable ($GLOBALS['variable'], global $variable)
- super global ($_ENV, $_POST, $_GET, $_COOKIE, $_SERVER)
- static
- singleton
Risky Tests
- Useless Tests (--report-useless-tests)
- Unintentionally Covered Code (--strict-coverage)
- Output During Test Execution (--disallow-test-output)
- Test Execution Timeout (--enforce-time-limit)
- Global State Manipulation (--strict-global-state)
Incomplete and Skipped Tests
Déjà constaté
- Donne un cas d'utilisation avant de coder
- Donne envie/l'occasion de revoir le code


|
Scientific Fortran Tools (SciFT)
1.2
|
Data Types | |
| type | nderivator |
Public Member Functions | |
| subroutine | init (this, func, nPoints) |
| Constructor. More... | |
| subroutine, public | nderivator_test () |
| test More... | |
Private Member Functions | |
| subroutine | destroy (this) |
| Destructor. More... | |
| character(len=200) function | str (this) |
| subroutine | show (this, unit) |
| subroutine | fornbergweights (x, ksi, m, c) |
| Weights for finite difference derivatives. More... | |
| real(8) function | evaluateapoint (this, x, order) |
| Returns the numeric value of its derivative in the point x. More... | |
| type(rnfunction) function | evaluateongrid (this, order) |
| Returns a numerical function (. More... | |
| real(8) function | functest (x) |
| This is neccesary only for NFunction_test() f = exp(-0.44*x)*sin(x)**2 df/dx = exp(-0.44*x)*(2.0*sin(x)*cos(x)-0.44*sin(x)**2) d2f/dx2 = exp(-0.44*x)*(2.0*cos(x)**2 - 1.76*cos(x)*sin(x) - 2.0*sin(x)**2 + 0.1936*sin(x)**2) More... | |
| real(8) function | dfunctest (x) |
| This is neccesary only for NFunction_test() f = exp(-0.44*x)*sin(x)**2 df/dx = exp(-0.44*x)*(2.0*sin(x)*cos(x)-0.44*sin(x)**2) d2f/dx2 = exp(-0.44*x)*(2.0*cos(x)**2 - 1.76*cos(x)*sin(x) - 2.0*sin(x)**2 + 0.1936*sin(x)**2) More... | |
| real(8) function | d2functest (x) |
| This is neccesary only for NFunction_test() f = exp(-0.44*x)*sin(x)**2 df/dx = exp(-0.44*x)*(2.0*sin(x)*cos(x)-0.44*sin(x)**2) d2f/dx2 = exp(-0.44*x)*(2.0*cos(x)**2 - 1.76*cos(x)*sin(x) - 2.0*sin(x)**2 + 0.1936*sin(x)**2) More... | |
Definition at line 31 of file NDerivator.f90.
|
private |
This is neccesary only for NFunction_test() f = exp(-0.44*x)*sin(x)**2 df/dx = exp(-0.44*x)*(2.0*sin(x)*cos(x)-0.44*sin(x)**2) d2f/dx2 = exp(-0.44*x)*(2.0*cos(x)**2 - 1.76*cos(x)*sin(x) - 2.0*sin(x)**2 + 0.1936*sin(x)**2)
Definition at line 329 of file NDerivator.f90.
|
private |
Destructor.
Definition at line 76 of file NDerivator.f90.
|
private |
This is neccesary only for NFunction_test() f = exp(-0.44*x)*sin(x)**2 df/dx = exp(-0.44*x)*(2.0*sin(x)*cos(x)-0.44*sin(x)**2) d2f/dx2 = exp(-0.44*x)*(2.0*cos(x)**2 - 1.76*cos(x)*sin(x) - 2.0*sin(x)**2 + 0.1936*sin(x)**2)
Definition at line 316 of file NDerivator.f90.
|
private |
Returns the numeric value of its derivative in the point x.
x Point where the derivative will be evaluated order order of the derivative
Definition at line 228 of file NDerivator.f90.
|
private |
Returns a numerical function (.
order order of the derivative
Definition at line 278 of file NDerivator.f90.
|
private |
Weights for finite difference derivatives.
Given: x(0), x(1),..., x(n) : grid points (nonrepeated, otherwise arbitrary) ksi: point x=ksi at which the approximations are wanted (may, but need not be a grid point) m : highest order of derivative of interest
Definition at line 172 of file NDerivator.f90.
|
private |
This is neccesary only for NFunction_test() f = exp(-0.44*x)*sin(x)**2 df/dx = exp(-0.44*x)*(2.0*sin(x)*cos(x)-0.44*sin(x)**2) d2f/dx2 = exp(-0.44*x)*(2.0*cos(x)**2 - 1.76*cos(x)*sin(x) - 2.0*sin(x)**2 + 0.1936*sin(x)**2)
Definition at line 303 of file NDerivator.f90.
| subroutine nderivator::init | ( | class(nderivator) | this, |
| type(rnfunction), intent(in), target | func, | ||
| integer, optional | nPoints | ||
| ) |
Constructor.
Definition at line 60 of file NDerivator.f90.
| subroutine, public nderivator::nderivator_test | ( | ) |
test
Definition at line 339 of file NDerivator.f90.
|
private |
Definition at line 122 of file NDerivator.f90.
|
private |
Definition at line 85 of file NDerivator.f90.


How about heading back to the homepage instead? It's nice there and there are lots of things to click on.
If you think there is supposed to be something here that isn't let us know via the Issues page.
But don't worry we're probably on the case. In the meantime you could try refreshing the page, if that doesn't work let us know by creating an issue on the Issues page.
{{/is_500}}{{request.method}} {{request.url}} {{stack}}


BBLog will lost the settings if you delete some browser-cache data. You must make sure that no automatic garbage truncate, private mode, auto cleanup is enabled in chrome. Also a tool that cleanup your pc from garbage can delete those browser data.
Here is something that may help you with configuration
https://support.google.com/chrome/bin/answer.py?answer=95647&topic=14666&ctx=topic


| spark.gaussianMixture {SparkR} | R Documentation |
Fits multivariate gaussian mixture model against a SparkDataFrame, similarly to R's
mvnormalmixEM(). Users can call summary
to print a summary of the fitted model,
predict
to make predictions on new data, and write.ml
/read.ml
to save/load fitted models.
spark.gaussianMixture(data, formula, ...) ## S4 method for signature 'SparkDataFrame,formula' spark.gaussianMixture(data, formula, k = 2, maxIter = 100, tol = 0.01) ## S4 method for signature 'GaussianMixtureModel' summary(object) ## S4 method for signature 'GaussianMixtureModel' predict(object, newData) ## S4 method for signature 'GaussianMixtureModel,character' write.ml(object, path, overwrite = FALSE)
data |
a SparkDataFrame for training. |
formula |
a symbolic description of the model to be fitted. Currently only a few formula operators are supported, including '~', '.', ':', '+', and '-'. Note that the response variable of formula is empty in spark.gaussianMixture. |
... |
additional arguments passed to the method. |
k |
number of independent Gaussians in the mixture model. |
maxIter |
maximum iteration number. |
tol |
the convergence tolerance. |
object |
a fitted gaussian mixture model. |
newData |
a SparkDataFrame for testing. |
path |
the directory where the model is saved. |
overwrite |
overwrites or not if the output path already exists. Default is FALSE which means throw exception if the output path exists. |
spark.gaussianMixture
returns a fitted multivariate gaussian mixture model.
summary
returns summary of the fitted model, which is a list.
The list includes the model's lambda
(lambda), mu
(mu),
sigma
(sigma), loglik
(loglik), and posterior
(posterior).
predict
returns a SparkDataFrame containing predicted labels in a column named
"prediction".
spark.gaussianMixture since 2.1.0
summary(GaussianMixtureModel) since 2.1.0
predict(GaussianMixtureModel) since 2.1.0
write.ml(GaussianMixtureModel, character) since 2.1.0
mixtools: https://cran.r-project.org/package=mixtools
## Not run:
##D sparkR.session()
##D library(mvtnorm)
##D set.seed(100)
##D a <- rmvnorm(4, c(0, 0))
##D b <- rmvnorm(6, c(3, 4))
##D data <- rbind(a, b)
##D df <- createDataFrame(as.data.frame(data))
##D model <- spark.gaussianMixture(df, ~ V1 + V2, k = 2)
##D summary(model)
##D
##D # fitted values on training data
##D fitted <- predict(model, df)
##D head(select(fitted, "V1", "prediction"))
##D
##D # save fitted model to input path
##D path <- "path/to/model"
##D write.ml(model, path)
##D
##D # can also read back the saved model and print
##D savedModel <- read.ml(path)
##D summary(savedModel)
## End(Not run)


{% extends "petitions/admissibility_form/admissibilityform_list.html" %} {% block replacedatefilter%} {%endblock%} {% block admissibilitytableheading %}
This table shows all the Inadmissible petitions submitted from across all the prisons. You can search using any criteria
{% endblock %}


| org.hyperledger.composer.system.Transaction |
Transaction |
A transaction named Transaction |
| org.hyperledger.composer.system.RegistryTransaction |
RegistryTransaction |
A transaction named RegistryTransaction |
| org.hyperledger.composer.system.AssetTransaction |
AssetTransaction |
A transaction named AssetTransaction |
| org.hyperledger.composer.system.ParticipantTransaction |
ParticipantTransaction |
A transaction named ParticipantTransaction |
| org.hyperledger.composer.system.AddAsset |
AddAsset |
A transaction named AddAsset |
| org.hyperledger.composer.system.UpdateAsset |
UpdateAsset |
A transaction named UpdateAsset |
| org.hyperledger.composer.system.RemoveAsset |
RemoveAsset |
A transaction named RemoveAsset |
| org.hyperledger.composer.system.AddParticipant |
AddParticipant |
A transaction named AddParticipant |
| org.hyperledger.composer.system.UpdateParticipant |
UpdateParticipant |
A transaction named UpdateParticipant |
| org.hyperledger.composer.system.RemoveParticipant |
RemoveParticipant |
A transaction named RemoveParticipant |
| org.hyperledger.composer.system.IssueIdentity |
IssueIdentity |
A transaction named IssueIdentity |
| org.hyperledger.composer.system.BindIdentity |
BindIdentity |
A transaction named BindIdentity |
| org.hyperledger.composer.system.ActivateCurrentIdentity |
ActivateCurrentIdentity |
A transaction named ActivateCurrentIdentity |
| org.hyperledger.composer.system.RevokeIdentity |
RevokeIdentity |
A transaction named RevokeIdentity |
| org.hyperledger.composer.system.StartBusinessNetwork |
StartBusinessNetwork |
A transaction named StartBusinessNetwork |
| org.hyperledger.composer.system.ResetBusinessNetwork |
ResetBusinessNetwork |
A transaction named ResetBusinessNetwork |
| org.hyperledger.composer.system.UpdateBusinessNetwork |
UpdateBusinessNetwork |
A transaction named UpdateBusinessNetwork |
| org.hyperledger.composer.system.SetLogLevel |
SetLogLevel |
A transaction named SetLogLevel |


Speech
Sam Gyimah on the importance of businesses getting involved in school careers services, at the launch of the Enterprise Adviser programme.
Thank you for that very kind introduction, Christine [Hodgson, Chair of the Careers and Enterprise Company].
It’s a great pleasure to be here today at the launch of this brand new programme connecting schools and employers, and young people and careers. Only this morning, I was lucky enough to visit Baylis Court School in Slough which already has a very successful careers education programme - the highlight of this visit was when a sixth-form pupil asked how she could get my job!
For too long the careers provision in schools has not been taken as seriously as it should be - instead, treated with disdain, as a kind of relic from the days before the internet put the whole world at our fingertips.
I’m sure plenty of people here have heard anecdotes about careers services in schools before - I certainly have.
Teenagers’ futures being reduced to a 20-question online quiz, a one-off meeting with a careers adviser in year 11 that feels more like a chore than an opportunity - in other words, a total lack of practical advice and personal support.
Tales of bad advice like these are all too common. I read an article just the other day about a famous comedian who told his careers adviser he liked canoeing, and was told he should join the navy
When you couple that with that the fact that an Ofsted study found that only 1 in 5 schools gives effective guidance and advice to its year 9, 10 and 11 pupils, it’s no wonder that 80% of employers think that young people don’t leave school equipped with the right skills for the workplace.
Imagine trying to study for your GCSEs , A levels or even your degree without having any idea about what your future might hold, and with no idea how the qualifications you’re working towards can shape and influence the rest of your life.
During this tricky phase of life, young people desperately need sensible, practical advice and guidance.
But I also know that good careers provision is about so much more than directing people into specific jobs.
It’s about providing that initial spark of enthusiasm and inspiring pupils to broaden their horizons - to think about the world outside the school gates.
After all, how can we tell a 13-year-old exactly what they should be doing by the time they’re 30 when we don’t even know what jobs will exist then?
Ten years ago, we didn’t know what a mobile app developer was. But now, coders are a hot commodity, working in some of the most high-profile and creative industries in the market.
What young people really need today are the building blocks to help them navigate a jobs market which is changing at a more rapid pace than ever before.
From the simple things that you or I might take for granted - a professional-sounding email address, to dressing smartly for an interview, to writing a great CV - all of these are vital components of good careers provision.
We’ve all seen embarrassing email addresses, or spelling mistakes in a job application, and I’m sure many young people have holiday snaps that they wouldn’t want their potential bosses to see if they looked at their Facebook profile - it’s all too easy to fall at this first hurdle if young people don’t have the right kind of support!
I do, however, know that many organisations across the country are working tirelessly to make sure that young people have equal access to this kind of provision at all points of their school journey.
I know that careers advisers are dedicated professionals who genuinely want young people to progress onto the best courses and into the best job.
Plenty of employers already work hard to target and support young people in their area.
And organisations like the National Citizenship Service are helping older teenagers build vital skills like leadership, teamwork and communication.
But I want this to be done consistently.
I want a strategic approach that brings all of these people and organisations together so that every single child, no matter where they live or what school they go to, has the same access to top-quality advice. That’s what this ‘one nation’ government is all about - spreading educational excellence everywhere and making sure that every young person across the country can unlock every ounce of their potential.
Because, as Christine has said previously, there’s currently too much variation across the country. Some schools benefit from a steady stream of professionals coming in to inspire their pupils, but others aren’t lucky enough to have access to these opportunities. And often, it’s pupils at these schools, in disadvantaged areas, who’d benefit most from an extra insight into the world of work.
Increasing aspirations, improving social mobility and giving everyone an equal chance at a good life can only be a good thing for the continued productivity and economic strength of our country. Outstanding careers provision has to be at the heart of this plan.
So, finally, when I think about this careers provision, and how the Careers and Enterprise Company can add the most value, I think about the importance of making the right links.
The importance of connecting employers to schools and young people, connecting schools with the best support and careers provision there is, and connecting young people’s presents to their futures.
Helping them see the value and relevance of high attainment, good behaviour and regular school attendance.
Giving them an insight into the exciting paths their careers could follow.
Fuelling their passions and their drive to succeed.
Perhaps, most importantly, teaching them the rules of the game. As I said earlier, how to choose the right career, how to apply for the right job, how to impress in the professional world.
Because I’ve never met a single young person who wants to end up unqualified and under-employed - and yet one young person not in education, employment or training, wasting their abilities and aspirations, is one too many.
So if we’re going to get careers advice right, if we’re going to harness the talent of the next generation and help young people make sensible choices about their future education and employment, we all need to raise our game.
Over the coming months, I want to see the Careers and Enterprise Company go from strength to strength, spreading what works to all schools and colleges, filling gaps and making it much, much easier for schools, employers, and careers and enterprise providers to connect.
Putting the experts in the classrooms, the people that understand business, and careers opportunities in the local area and beyond.
In turn, I want to see all of those companies who have said time and time again that school leavers don’t have the right skills for the workplace step up and help to solve that problem.
Of course, some companies are thinking about this already, but many more can consider offering work experience placements, sending staff into schools, mentoring pupils - there are so many ways to help bridge the gap between education and employment.
I’ll leave you now to hear more from Claudia (Harris, CEO of the Careers and Enterprise company) on the Enterprise Adviser programme, but before I do, I want to thank all of you for all of your work so far. I’m confident I’ll soon be hearing great things and glowing reports as schools and pupils start to benefit from this new service.
Thank you.
Published: 18 September 2015
From: Department for Education Sam Gyimah MP
Part of: Young people


This is a WordPress starter theme based on Foundation 5 by Zurb. The purpose of FoundationPress, is to act as a small and handy toolbox that contains the essentials needed to build any design. FoundationPress is meant to be a starting point, not the final product. If you're looking for an all-in-one theme with built-in shortcodes, plugins, fancypancy portfolio templates or whatnot, I'm afraid you have to look elsewhere.
Please fork, copy, modify, delete, share or do whatever you like with this.
All contributions are welcome!
A brief explanation to the requirements (feel free to skip this if you're a pro):
Back in the days we wrote all styles in the style.css file. Then we realized that this could quickly create clutter and confusion, especially in larger projects. Foundation uses SASS (equivalent to LESS, used in Bootstrap). In short, SASS is a CSS pre-processor that allows you to write styles more effectively and tidy.
To compile SASS files into one style sheet, we use a tool called Grunt. In short, Grunt is a task runner that automates repetitive tasks like minification, compilation, linting, etc. Grunt and Grunt plugins are installed and managed via npm, the Node.js package manager. Before setting up Grunt ensure that your npm is up-to-date by running npm update -g npm
(this might require sudo
on certain systems)
Bower is a package manager used by Zurb to distribute Foundation. When you have Bower installed, you will be able to run foundation update
in the terminal to update Foundation to the latest version. (After an upgrade you must run grunt
to recompile files).
Okay, so you'll need to have the following items installed before continuing.
[sudo] npm install -g grunt-cli
[sudo] npm install -g bower
cd my-wordpress-folder/wp-content/themes/
git clone git@github.com:olefredrik/FoundationPress.git
mv FoundationPress your-theme-name
cd your-theme-name
npm install && bower install && grunt build
Tip: If you get an error saying Permission denied (publickey) when cloning the repository, use the https protocol instead:
git clone https://github.com/olefredrik/FoundationPress.git
While you're working on your project, run:
grunt
And you're set!
Check for Foundation Updates? Run:
foundation update
(this requires the foundation gem to be installed in order to work. Please see the docs for details.)
style.css
: Do not worry about this file. (For some reason) it's required by WordPress. All styling are handled in the Sass files described below
scss/app.scss
: Sass imports for global config, foundation and site structure
scss/config/_variables.scss
: Your custom variables
scss/config/_colors.scss
: Your custom color schemescss/config/_settings.scss
: Original Foundation 5 base settings
scss/site/_structure
: Your custom site structure
css/app.css
: All Sass files are minified and compiled to this file
bower_components/
: This is the source folder where all Foundation scripts are located. foundation update
will check and update scripts in this folderjs/custom
: This is where you put all your custom scripts. Every .js file you put in this directory will be minified and concatinated to app.jsjs/
: jQuery, Modernizr and Foundation scripts are copied from bower_components/
to this directory, where they are minified and concatinated and enqueued in WordPressgrunt
in your terminal for the scripts to be copied. See Gruntfile.js for detailsPull requests are highly appreciated. About a dozen people have written parts of FoundationPress (so far). Here are some guidelines to help:


{$package_count} PEAR packages.
Openpear is a PEAR Repository Channel and Subversion Hosting Service.
since November 2008
{$t.trans('No more hassle to propose a new package for inclusion in PEAR or to create a PEAR package! Openpear provides you with automated way from building a PEAR package all the way to registering it to channel.')}
{$t.trans('Source code on Openpear is open to everyone. Would you like to commit bug fix which bug you\'ve found? Would you like to maintain a package no one is taking care of anymore? You can make it with Openpear!')}
{$t.trans('Openpear is offering the fastest process you\'ve never experienced, from building a PEAR package upto release! No hassle for user as well to search all over the internet for package.')}
$ pear channel-discover openpear.org
"{$t.trans('It\'s a dreams come true.')}" -- sotarok


|
client-ip tcp-output-argument
Returns the IP address of the client
connected to a TCP port. The tcp-output-argument is the second value
returned from socket-accept . The address is returned as a string, the same as
the third result from socket-accept .
|
>(let s (socket-accept (open-socket 8080))
(client-ip (s 1)))
"<IP_ADDRESS>"
|
|
open-socket port
Opens a tcp-listener on the given port.
|
>(open-socket 8000)
#<tcp-listener>
|
|
socket-accept tcp-port
Accepts a connection on the given tcp-listener.
The thread blocks until a connection is received. It returns a list of
(input-port output-port client-ip-string) .
|
>(socket-accept (open-socket 8080))
(#<input-port> #<output-port> "<IP_ADDRESS>")
|
|
w/socket var port [body ...]
Opens a socket with open-socket , assigns it to var , executes body , and closes the socket.
|
>(w/socket s 8888 (let (i o ip) (socket-accept s)
(w/stdout o (prn "Hello") (close i o))
(prn ip)))
<IP_ADDRESS>
|
Copyright 2008 Ken Shirriff.


Hello there!
This home page isn't used for anything currently.
You may be looking for...
- /motd, the Message Of The Day page for our TTT server
- /bear/, steven's discord bot
- https://discord.goon.haus/, our discord server
- You can connect to our ttt server with
connect ttt.goon.haus
in console or by our steam join link!


# Writing a File Writing to files is a frequent need when programming in any language. Like other programming languages, JavaScript with Node.js makes dealing with the file system intuitive through the use of a module dealing with the operating system's file system. --- ## fs ... utf8 By default, the `fs` module will write files with an encoding of `utf8`. Commonly used encodings are - utf8 - ascii - binary - hex - base64 - utf16le --- # Method 1: Using fs.writeFile ```js // writefile.js const fs = require('fs'); let lyrics = 'But still I\'m having memories of high speeds when the cops crashed\n' + 'As I laugh, pushin the gas while my Glocks blast\n' + 'We was young and we was dumb but we had heart'; // write to a new file named 2pac.txt fs.writeFile('2pac.txt', lyrics, (err) => { // throws an error, you could also catch it here if (err) throw err; // success case, the file was saved console.log('Lyric saved!'); }); ``` -- If you need to specify the character encoding then here is the way you'll need to call the method: ```js fs.writeFile('2pac.txt', 'Some other lyric', 'ascii', callback); ``` --- ### Writing file synchronously There is a synchronous method `fs.writeFileSync` that you can use in place of `fs.writeFile`. The difference is that the `fs.writeFileSync` method performs input/output operations synchronously, blocking the Node.js event loop while the file is written. --- # Method 2: Using fs.write ```js // fs_write.js const fs = require('fs'); // specify the path to the file, and create a buffer with characters we want to write let path = 'ghetto_gospel.txt'; let buffer = new Buffer('Those who wish to follow me\nI welcome with my hands\nAnd the red sun sinks at last'); // open the file in writing mode, adding a callback function where we do the actual writing fs.open(path, 'w', function(err, fd) { if (err) { throw 'could not open file: ' + err; } // write the contents of the buffer, from position 0 to the end, to the file descriptor returned in opening our file fs.write(fd, buffer, 0, buffer.length, null, function(err) { if (err) throw 'error writing file: ' + err; fs.close(fd, function() { console.log('wrote the file successfully'); }); }); }); ``` --- # Method 3: Using fs.createWriteStream ```js // write_stream.js const fs = require('fs'); let writeStream = fs.createWriteStream('secret.txt'); // write some data with a base64 encoding writeStream.write('aef35ghhjdk74hja83ksnfjk888sfsf', 'base64'); // the finish event is emitted when all data has been flushed from the stream writeStream.on('finish', () => { console.log('wrote all data to file'); }); // close the stream writeStream.end(); ``` --- # Error Handling when Writing to a File When writing to files, many different errors can occur during input/output. Your code should address these potential errors. One simple thing to do is to throw the errors as Node.js exceptions. This crashes the program, and is therefore not recommended except in cases where you have little other recourse. -- Alternatively, you can include try/catch blocks around the code calling the section of the program where errors can occur. --- # Appending to a File with fs.appendFile ```js // append_file.js const fs = require('fs'); // add a line to a lyric file, using appendFile fs.appendFile('empirestate.txt', '\nRight there up on Broadway', (err) => { if (err) throw err; console.log('The lyrics were updated!'); }); ``` -- ### Output ``` // empirestate.txt Empire State of Mind - JAY-Z I used to cop in Harlem; hola, my Dominicanos ``` -- ``` Right there up on Broadway ``` --- # Conclusion - There are multiple approaches to consider when writing to a file. - The simplest way, and often the most appropriate, is to use the writeFile method in the fs module. - If you are writing larger files, you should consider the chunked writing capabilities of writable streams. - For special situations, you can use the lower-level fs utilities like fs.write. --- # The End


name: inverse layout: true class: center, middle, inverse --- #Lynching in the Press Michael Weaver Yale University April 8, 2016 --- template:inverse
--- template:inverse
*New York Times*. 5/7/1886 --- template:inverse
--- template:inverse
*The Chillicothe Constitution-Tribune* 1/15/1931 --- template:inverse ##How did this take place? --- --- template:inverse ##Publicity and Technology --- layout:false .left-column[ ## Argument ###Publicity ] .right-column[ ###Turn of the century... saw massive expansion of - transportation networks (railroads) - communication networks (telegraph) - news services (e.g., Associated Press) ] --- template:inverse
--- class: center, middle
--- .left-column[ ## Argument ###Publicity ] .right-column[ ###Turn of the century... saw massive expansion of - transportation networks (railroads) - communication networks (telegraph) - news services (e.g., Associated Press) ... which made the country smaller - reduced travel times for people and information - created a public eager for national news ] --- .left-column[ ## Argument ###Publicity ] .right-column[ ###Turn of the century... saw massive expansion of - transportation networks (railroads) - communication networks (telegraph) - news services (e.g., Associated Press) ... which made the country smaller - reduced travel times for people and information - created a public eager for national news ###Publicity of lynchings has greater reach ] --- .left-column[ ## Argument ###Publicity ###Criticism ] .right-column[ ###Wider public Breaking news of lynchings free from locality: 1. Loss of control over narrative 2. New audiences unsympathetic to lynchers 3. No ability to coerce critics Lynching events could become national scandals ] --- template:inverse ##How do we test this? --- template:inverse ##The data --- .left-column[ ##Data ###Newspapers ] .right-column[ ###"Big data" meets history Digitized historical newspaper archives * More than 3,000 different papers * Nation-wide coverage * Big-city dailies, small town weeklies * 8 million+ issues between 1880 and 1940 * Searchable content * 1.2 million articles explicitly mention lynching ] --- template:inverse ##Newspapers in sample over time
--- template:inverse
--- .left-column[ ##Data ###Newspapers ###Railroads ] .right-column[ ###Railroad networks * Yearly data from 1880 and 1900 (1911?) * Period of rapid growth (more than doubles) * Network centrality of counties * Travel time between counties ] --- template:inverse
--- template:inverse ##The findings --- .left-column[ ## Results ] .right-column[ ###Three implications The probability that a lynching is reported in a newspaper: 1. **increases** as distance **decreases** between the lynching and the paper. ![check][] ] [check]:http://servepapers247.com/wp-content/uploads/2013/05/Checkmark-Red.png --- class: center, middle Probability of lynching mention by distance
--- .left-column[ ## Results ] .right-column[ ###Three implications The probability that a lynching is reported in a newspaper: 1. **increases** as distance **decreases** between the lynching and the paper. ![check][] 2. **increases** as travel times **decrease** between the lynching and the paper. ![check][] ] [check]:http://servepapers247.com/wp-content/uploads/2013/05/Checkmark-Red.png --- template:inverse ###Reductions in travel time almost ~~exactly~~ offset effects of distance --- .left-column[ ## Results ] .right-column[ ###Three implications The probability that a lynching is reported in a newspaper: 1. **increases** as distance **decreases** between the lynching and the paper. ![check][] 2. **increases** as travel times **decrease** between the lynching and the paper. ![check][] 3. **increases** when the lynching occurred in an area more **central in communication and transportation networks**. ![check][] ] [check]:http://servepapers247.com/wp-content/uploads/2013/05/Checkmark-Red.png --- class: center, middle Probability of lynching mention by betweenness centrality
(deciles)
--- class: center, middle Probability of lynching mention by eigenvector centrality
(deciles)
--- template:inverse ##What's next? --- .left-column[ ##Next steps ###Criticism ] .right-column[ ###Does publicity produce criticism? * Measure criticism: keywords/phrases ![check][] * Is press coverage of lynching is more critical when the paper: 1. is at a greater distance 2. is in a place without a history or culture of lynching ] --- .left-column[ ##Next steps ###Criticism ###Technology ] .right-column[ ####Proximity to important nodes * Geocoding exact location of lynching events * Transcribe and geocode railroad stations * Lists for each year between 1880 and 1910 * Transcribe and geocode telegraph offices * Western Union books from 1870s through 1920s #### Crowdsourcing transcription * Real-time geocoding and mapping of new stations/offices * Public access to the data ] --- class: center, middle
--- template:inverse
--- template:inverse #Thank you


First day of school has always been blurry but lifechanging. I vaguely remember the first day of middle school, first day of high school and first day of my undergrad.
Meeting new people
Meeting new people is sometimes terrifying. People often end up with two extremes. Some people either choose not talk to anyone until someone talks to him/her and some others choose to talk to everyone and change their target every minute.
Though I'm not an expert in this by any means, I feel like making a few close friends and then slowly expand may be one of the best approaches.
Backgrounds
I still remember when I just arrived at high school in Canada. I was in awe for how different other people's backgrounds are. People from different race and culture studying together was a new concept for the 16 years old me.
Well I thought surprises like this would never happen again, people from even more different backgrounds came together. There are people who worked many years in completely different fields than computer science and people who studied almost completely different things for their undergrad.
Never too late to start
For some of them, it's a complete change of career. For a 40 years old practicing doctor to go back to school, it's not easy.
While I applause their determination, I also think about myself. I switch from electrical engineering to computer hardware, then to computer software, and now to machine learning. My path wasn't the most straightforward and there was certainly lots of pain associated with it.
How do I know if I have chosen the right path for my career? I don't think I will ever know. However, what I do know is that it's never too late to start something if I believe in it.


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I’m extremely happy to announce Carbon v<IP_ADDRESS>. This should be the last release of Carbon before v1.0, which will probably be released in late February or early March. This is the most stable version of Carbon yet, and should be considered a beta of version 1.0.
In order to stabilize the API, make it internally consistent, and improve future maintainability, this release contains many backwards incompatible changes. We apologize for this inconvenience. API stability will be a high priority once v1.0 is out the door.
Please take some time within the next few weeks to download Carbon, and see how it works for you. If you notice any problems or have any suggestions, please file a bug report. Help us make Carbon even better!
Upgrade Instructions
Take the following steps to get your scripts to work with this release.
Certificates
Replaces usages of:
Get-SslCertificateBinding
withGet-SslCertificateBindings
Get-SslCertificateBinding -IPPort '<IP_ADDRESS>:443'
withGet-SslCertificateBindings
Get-SslCertificateBinding -IPPort '<IP_ADDRESS>:8001
withGet-SslCertificateBindings -IPAddress '<IP_ADDRESS>' -Port 8001
Test-SslCertificateBinding -IPPort '<IP_ADDRESS>:443
withTest-SslCertificateBinding
Test-SslCertificateBinding -IPPort '<IP_ADDRESS>:8001
withTest-SslCertificateBinding -IPAddress '<IP_ADDRESS>' -Port 8001
Set-SslCertificateBinding -IPPort '<IP_ADDRESS>:443
withSet-SslCertificateBinding
Set-SslCertificateBinding -IPort '<IP_ADDRESS>:8001' with
Set-SslCertificateBinding -IPAddress ‘<IP_ADDRESS>’ -Port 8001Remove-SslCertificateBinding -IPPort '<IP_ADDRESS>:443
withRemove-SslCertificateBinding
Remove-SslCertificateBinding -IPPort '<IP_ADDRESS>:8001
withRemove-SslCertificateBinding -IPAddress '<IP_ADDRESS>' -Port 8001
Computer
Replace usages of
Set-EnvironmentVariable -Scope 'Process'
withSet-EnvironmentVariable -ForProcess
Set-EnvironmentVariable -Scope 'User'
withSet-EnvironmentVariable -ForUser
Set-EnvironmentVariable -Scope 'ForComputer'
withSet-EnvironmentVariable -ForComputer
Cryptography
Protect-String -Scope CurrentUser
withProtect-String -ForUser
Protect-String -Scope LocalMachine
withProtect-String -ForComputer
IIS
- Renamed the
StatusCode
property on the object returned by Get-IisHttpRedirect toHttpResponseStatus
. Update usages accordingly. - The
Bindings
property returned byGet-IisWebsite
is now a collection ofMicrosoft.Web.Administration.Binding
objects. Update usages of$site.Bindings[$idx].IPAddress
and$site.Bindings[$idx].Port
to$site.Bindings[$idx].Endpoint.Address
and$site.Bindings[$idx].Endpoint.Port
, respectively.
Replace usages of:
Set-IisAnonymousAuthentication
withEnable-IisSecurityAuthentication -Anonymous
Set-IisAnonymousAuthentication -Disabled
withDisable-IisSecurityAuthentication -Anonymous
Set-IisBasicAuthentication
withEnable-IisSecurityAuthentication -Basic
Set-IisBasicAuthentication -Disabled
withDisable-IisSecurityAuthentication -Basic
Set-IisWindowsAuthentication
withEnable-IisSecurityAuthentication -Windows
andSet-IisWindowsAuthentication -DisableKernelMode
Set-IisWindowsAuthentication -UseKernelMode
withSet-IisWindowsAuthentication
Set-IisWindowsAuthentication -Disabled
withDisable-IisSecurityAuthentication -Windows
Unlock-IisConfigSection -Name <string>
withUnlock-IisConfigurationSection -SectionPath <string>
(runappcmd.exe lock config -section:?
for values to the newSectionPath
parameter)Unlock-IisBasicAuthentication
withUnlock-IisConfigurationSeciton -SectionPath 'system.webServer/security/authentication/basicAuthentication'
Unlock-IisCgi
withUnlock-IisConfigurationSeciton -SectionPath 'system.webServer/cgi'
Unlock-IisWindowsAuthentication
withUnlock-IisConfigurationSeciton -SectionPath 'system.webServer/security/authentication/windowsAuthentication'
INI
Replace usages of:
Split-Ini -Path <string>
withSplit-Ini -Path <string> -AsHashtable
(hashtable is no longer returned by default)Split-Ini -Path <string> -PassThru
withSplit-Ini -Path <string>
(per-line objects are now returned by default)
Path
Replace usages of
Get-PathRelativeTo -To <string> -From <string>'
withResolve-RelativePath -Path <string> -FromDirectory <string>
Get-PathRelativeTo -To <string> -From <string> -FromType 'File'
withResolve-RelativePath -Path <string> -FromFile <string>
Performance Counters
- Get-PerformanceCounters no longer returns an empty list if there are zero counters or a single element list if there is one counter. It now returns
null
and a single object, respectively. Update usages accordingly.
PowerShell
- Get-TrustedHosts no longer returns an empty list if there are no trusted hosts. It now return nothing/
null
. Update usages accordingly.
Security
- Assert-AdminPrivileges now returns
True
orFalse
if the user doesn’t have admin privileges. It also no longer throws an exception, but writes an error. If you want to preserve current behavior where it stops script execution, replace usages withAssert-AdminPrivileges -ErrorAction Stop
.
Shares
Replace usages of:
Install-Share -Permissions '"ShareAdmins,FULL"','"ShareWriters,CHANGE"','"ShareReaders,READ"'
withInstall-SmbShare -FullAccess ShareAdmins -ChangeAccess ShareWriters -ReadAccess ShareReaders
.
Windows Features
Replace usages of:
Test-WindowsFeature
withTest-WindowsFeature -Installed
Install-WindowsFeatureIis
withInstall-WindowsFeature -Iis
Install-WindowsFeatureIis -HttpRedirection
withInstall-WindowsFeature -Iis -IisHttpRedirection
Install-WindowsFeatureMsmq
withInstall-WindowsFeature -Msmq
Install-WindowsFeatureMsmq -HttpSupport
withInstall-WindowsFeature -Msmq -MsmqHttpSupport
Install-WindowsFeatureMsmq -ActiveDirectoryIntegration
withInstall-WindowsFeature -MsmqActiveDirectoryIntegration
New Features
IIS
- Created Get-IisConfigurationSection function for getting a site’s (and optional sub-directory’s) Microsoft.Web.Administration.ConfigurationSection.aspx) objects for an arbitrary IIS configuration section.
- Created Get-IisSecurityAuthentication function for getting a site’s (and optional sub-directory’s) anonymous, basic, digest, or Windows authentication configuration section.aspx).
- Created Test-IisSecurityAuthentication function for testing if anonymous, basic, digest, or Windows authentication is enabled for a website (and optional sub-directory).
- Created Get-IisConfigurationSection function for returning an arbitrary IIS configuration section using the Microsoft.Web.Administration API.
- Created Lock-IisConfigurationSection function for locking arbitrary global IIS configuration sections.
- Created Test-IisConfigurationSection function for testing if an configuration section exists or is locked or not.
- Created function Get-IisAppPool for getting a
Microsoft.Web.Administration.AppPool
object for an application pool. - Created function Uninstall-IisAppPool for removing an IIS application pool.
Windows Features
- Created new Get-WindowsFeature function for getting a list of available Windows features.
Bug Fixes
Service
- Install-Service not granting default service identity, Network Service, the correct permissions.
- Install-Service not correctly resolving local identity account names.
Enhancements
Certificates
- Moved functionality of
Get-SslCertificateBinding
into Get-SslCertificateBindings. Can now filter byIPAddress
and/orPort
. - Get-SslCertificateBindings now returns
Carbon.Certificates.SslCertificateBinding
objects. All information displayed by thenetsh http show sslcert
command is returned as part of those objects. - Get-SslCertificateBindings now supports filtering by
IPAddress
andPort
separately, instead of requiring both. The oldIPPort
parameter is replaced withIPAddress
andPort
parameters. - Test-SslCertificateBinding now supports testig by
IPAddress
andPort
separately, instead of requiring both. The oldIPPort
parameter is replaced withIPAddress
andPort
parameters. - Replaced
IPPort
parameter onGet-SslCertificateBinding
with separateIPAddress
andPort
parameters on Get-SslCertificateBindings. SetIPAddress
only if you want to bind to a specific IP address (i.e. not <IP_ADDRESS>). SetPort
if not binding to port 443. - Replaced
IPPort
parameter on Remove-SslCertificateBinding with separateIPAddress
andPort
parameters. SetIPAddress
only if you want to remove a binding for a specific IP address (i.e. not <IP_ADDRESS>). SetPort
if the binding is not on port 443. - Renamed
Remove-Certificate
to Uninstall-Certificate (added backwards-compatible alias in v<IP_ADDRESS>).
Computer
- Replaced the
Scope
parameter on Set-EnvironmentVariable and Remove-EnvironmentVariable with scope-specificForProcess
,ForUser
, andForComputer
switches.
Cryptography
- Replaced Protect-String’s
Scope
parameteter with theForUser
orForComputer
scope-specific switches.
Hosts File
- Set-HostsEntry no longer throws an exception if the hosts file contains an invalid line. Instead, a warning is written and the line is commented out.
INI
- Split-Ini now returns strongly-typed
Carbon.Ini.IniNode
objects instead of hashtables. - The line numbers returned by Split-Ini start at 1 instead of 0.
- Split-Ini now returns name/value objects by default (the
PassThru
switch is no longer needed for this behaviro). This makes it more PowerShell-y. The old behavior of returning aHashtable
is available be using the newAsHashtable
switch.
IIS
- Replaced
Set-IisAnonymousAuthentication
with Enable-IisSecurityAuthentication and Disable-IisSecurityAuthentication. - Replaced
Set-IisBasicAuthentication
with Enable-IisSecurityAuthentication and Disable-IisSecurityAuthentication. - Moved code to enable/disable Windows authentication from Set-IisWindowsAuthentication to Enable-IisSecurityAuthentication and Disable-IisSecurityAuthentication.
- Switched the default behavior of Set-IisWindowsAuthentication to enable kernel mode. To disable kernel mode, use the
DisableKernelMode
switch. - Renamed
Unlock-IisConfigSection
to Unlock-IisConfigurationSection. - Removed Unlock-IisConfigurationSection’s
Name
parameter and replaced it withSectionPath
, which takes a list of full path to the configuration section(s) to unlock. - Removed
Unlock-IisBasicAuthentication
in favor ofUnlock-IisConfigurationSection -SectionPath 'system.webServer/security/authentication/basicAuthentication'
. - Removed
Unlock-IisCgi
in favor ofUnlock-IisConfigurationSection -SectionPath 'system.webServer/cgi'
. - Removed
Unlock-IisWindowsAuthentication
in favor ofUnlock-IisConfigurationSection -SectionPath 'system.webServer/security/authentication/windowsAuthentication'
. - Renamed
Remove-Service
to Uninstall-Service (added backwards-compatible alias in v<IP_ADDRESS>). - Install-Service writes errors instead of throwing exceptions.
- Install-Service grants
ReadAndExecute
file system permissions on the service executable to the service identity instead ofFullControl
. - Improved Install-Service’s
WhatIf
support. - Renamed
Test-IisAppPoolExists
to Test-IisAppPool (added backwards-compatible alias in v<IP_ADDRESS>). - Renamed
Remove-IisWebsite
with Uninstall-IisWebsite (added backwards-compatible alias in v<IP_ADDRESS>). - Install-IisAppPool now always sets the application pool to run as the system’s default application pool identity if the
ServiceAccount
parameter isn’t given. - Install-IisAppPool now starts an IIS application pool if it is stoppped.
- Get-IisHttpRedirect now returns a
Carbon.Iis.HttpRedirectConfigurationSection
object. TheStatusCode
property on the old object is now namedHttpResponseStatus
. - Renamed the
StatusCode
parameter on Set-IisHttpRedirect toHttpResponseStatus
(added backwards-compatible alias in v<IP_ADDRESS>). - Get-IisWebsite now returns a
Microsoft.Web.Administration.Site
object.
MSMQ
- Renamed
Remove-MsmqMessageQueue
to Uninstall-MsmqMessageQueue (added backwards compatible alias in v<IP_ADDRESS>).
Path
- Renamed
Get-PathRelativeTo
to Resolve-RelativePath. Renamed itsTo
parameter toPath
, and moved it to position 0. Replaced/combined theFrom
andFromType
parameters withFromDirectory
andFromFile
parameters. - Renamed
ConvertTo-FullPath
to Resolve-FullPath (added backwards-compatible alias in v<IP_ADDRESS>). Added support for converting unrooted paths using the current location. - Renamed
Get-PathCanonicalCase
with Resolve-PathCase (added backwards-compatible alias in v<IP_ADDRESS>). Added support for piping inGet-Item
andGet-ChildItem
output, e.g.Get-Item C:\WINDOWS | Resolve-PathCase
returns C:\Windows.
Performance Counters
- Get-PerformanceCounters now returns nothing/
null
or a single object instead of an empty/single element array when there are no or one performance counters. - Install-PerformanceCounter no longer re-installs a counter if a counter with its name, description, and type already exist.
PowerShell
- Get-TrustedHosts now returns nothing/
null
if there are no trusted hosts. (It used to return an empty array.)
Security
- Assert-AdminPrivileges no longer throws an exception if the user doesn’t have administrative privileges. Instead, it writes an error and returns
False
. It returnsTrue
if the user has privileges.
Shares
- Replaced the
Permissions
parameter on Install-SmbShare withFullAccess
,ChangeAccess
, andReadAccess
parameters. Previously, to set share permissions, you passed in specially-formatted values to thePermission
parameter, e.g."MyGroup,FULL","MyOtherGroup,READ"
. Now, just pass a list of identity name(s) to theFullAccess
,ChangeAccess
, orReadAccess
parameters to grant those identies full, change, or read access, e.g.-FullAccess MyGroup -ReadAccess MyOtherGroup
.
Users and Groups
- Renamed
Remove-User
to Uninstall-User (added backwards-compatible alias in v<IP_ADDRESS>).
Windows Features
- Test-WindowsFeature now tests if a Windows feature exists, instead of if it is installed. Added an
Installed
switch to detect if a feature exists and if it is installed. - Renamed
Install-WindowsFeatures
to Install-WindowsFeature (added backwards-compatible alias in v<IP_ADDRESS>). - Renamed Install-WindowsFeature’s
Features
parameter toName
(added backwards-compatible alias in v<IP_ADDRESS>). - Removed
Install-WindowsFeatureIis
and replaced withIis
andIisHttpRedirection
switches on Install-WindowsFeature. - Removed
Install-WindowsFeatureMsmq
and replaced withMsmq
,MsmqHttpSupport
, andMsmqActiveDirectoryIntegration
switches on Install-WindowsFeature. - Renamed
Uninstall-WindowsFeatures
to Uninstall-WindowsFeature (added backwards-compatible alias in v<IP_ADDRESS>). - Renamed Uninstall-WindowsFeature’s
Features
parameter toName
(added backwards-compatible alias in v<IP_ADDRESS>). - Added
Iis
,IisHttpRedirection
,Msmq
,MsmqHttpSupport
, andHttpActiveDirectoryIntegration
switches to Uninstall-WindowsFeature. - Install-WindowsFeature, Test-WindowsFeature, and Uninstall-WindowsFeature are now available even if the current operating system doesn’t support managing Windows features. They don’t do anything in those situations, but they exist.
- Install-WindowsFeature, Test-WindowsFeature, and Uninstall-WindowsFeature are not available if the PowerShell v3.0 server manager cmdlets exists (on Windows 8/2012).
Miscellaneous
- Replaced all instances where functions were throwing exceptions with
Write-Error
. - The Carbon assembly is now versioned and signed.


Hello, this is Patrick Kibiegon Rop. I am curently enrolled in moringa school as a student for a software developement course Moringa school is one of the leading institution for comprehensive training and mentoring of students and proffesionals who are enthusiastic in matters technology.
As a new software developement student, i have been able to learn the following;
The first step to becoming a software developer is knowing the type of software to use. During the the first week, i was able to install linux mint distribution system, a text editor(Visual studio code) Slack channel communication app and Zoom meeting app.
2.Terminal is one of the powerful tool every developer should be familiar with. Terminal is an interface that allow users to interact with computer by simply typing commands into command prompt.
3.Git is a free and open distributed version control system too to manage your source code history. Github is a code hosting platform for version control and collaboration. It simply lets you and others work on projects from anywhere.
4.HTML simply stands for Hyper Text markup Language. It is used to create web pages and describe their structure as well. It is made up of series of elements that tells browser how to display content.
5.CSS stands for Cascading Style sheets. This is a Language that is basically used to style an HTML document and describe how pages should be didplayed.
Below is a list of topics that i am loooking forward to learn during my stay at moringa.
I am a GIS graduate class of 2020 from The Technical university of kenya. I am flexible,harworking self-driven and passionate in matters technology. I am also enthusiastic and a great team player and organized. I am conversant with skills such as QGis, and Arc Gis softwares, drone technology and software associated ,types of geographic data among so many others. I enrolled to programming classes in order to add skills and value to my already acquired skills and also to find a why of merging the two, that is software developement and Geographic Information System. Also i got a passion in programming, hence wanted to pursue to get indepth knowlodge and new skil.
My hobbies include watching movies,soccer and playing games(chess)
You can reach me through email, patrick.rop@student.moringaschool.com,linkedIn or via mobile.


{% extends 'base.html' %} {% block header %}
This can take a few minutes if it is the first time the Age has been seen as the file is being downloaded ...


This is the home page of the documentation for python-oletools. The latest version can be found online, otherwise a copy is provided in the doc subfolder of the package.
python-oletools is a package of python tools to analyze Microsoft OLE2 files (also called Structured Storage, Compound File Binary Format or Compound Document File Format), such as Microsoft Office documents or Outlook messages, mainly for malware analysis, forensics and debugging. It is based on the olefile parser. See http://www.decalage.info/python/oletools for more info.
Quick links: Home page - Download/Install - Documentation - Report Issues/Suggestions/Questions - Contact the Author - Repository - Updates on Twitter
Note: python-oletools is not related to OLETools published by BeCubed Software.
- oleid: to analyze OLE files to detect specific characteristics usually found in malicious files.
- olevba: to extract and analyze VBA Macro source code from MS Office documents (OLE and OpenXML).
- mraptor: to detect malicious VBA Macros
- msodde: to detect and extract DDE/DDEAUTO links from MS Office documents, RTF and CSV
- pyxswf: to detect, extract and analyze Flash objects (SWF) that may be embedded in files such as MS Office documents (e.g. Word, Excel) and RTF, which is especially useful for malware analysis.
- oleobj: to extract embedded objects from OLE files.
- rtfobj: to extract embedded objects from RTF files.
- olebrowse: A simple GUI to browse OLE files (e.g. MS Word, Excel, Powerpoint documents), to view and extract individual data streams.
- olemeta: to extract all standard properties (metadata) from OLE files.
- oletimes: to extract creation and modification timestamps of all streams and storages.
- oledir: to display all the directory entries of an OLE file, including free and orphaned entries.
- olemap: to display a map of all the sectors in an OLE file.
- and a few others (coming soon)


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With my siphon and funnel I march to the hills, stamping on insects to add to my kills. I have distributed thousands of pills, and now I must hide in a grot.
My siphon! My siphon! I dropped it back there. I must go and fetch it while the weather stands fair. I will need it within my elfin grot lair. So I retrace my steps at a trot.
My pathway is barred by a knight at arms. Alone and pale, he lacks all charms. I think I have seen him patrolling the farms, the farms where I poisoned the poultry.
Palely loitering like a monitor lizard, the knight plunges his lance right into my gizzard. “I am no knight, I'm a pinball wizard!” cries this latter-day Roger Daltrey.
I crumple to earth and let fall my funnel. I can see the light at the end of the tunnel. A cliché I know, but as long as the sun'll shine I'll stay clear of the fiery pit.
The wizard twirls a mic on the end of a lead. By Christ, it is Roger Daltrey indeed! Is he going to sing in my hour of need? He's such a preposterous git!
I reach for my funnel and chuck it at him. But the light at the end of the tunnel grows dim. My immediate prospects are decidedly grim. To die at the hands of The Who!
“See me, feel me, touch me –” I groan. “No, you must reap what you have sown” says Daltrey as I wail and moan. I am but left to rue.
 I was being an evil countryside Puck. Now I just want my Mommy.
Gore spouts from my gizzard, my life leaks away.  With his awful hair like a bale of hay, Daltrey shakes it and starts to sing “Tommy”.
At the last, the mercy of God doth abide. As he opened his gob, I died.


PDB Sequence Viewer Demo
Sequence feature View
<pdb-seq-viewer entry-id="1aqd" entity-id="1" viewer-type="pdbViewer" settings='{"height": 320, "width": 750}'></pdb-seq-viewer>
UniProt Coverage Viewer
Use mouse scroll for zoom-in/out.
The viewer is partially responsive and takes the width of its parent element on page load. In order
to set fixed dimensions (height and width) please use the component 'settings' attribute
Example :


| org.arl.unet |
UnetStack core messages, parameters and classes. |
| org.arl.unet.addr |
Address allocation and resolution interface and agents. |
| org.arl.unet.api |
Easy-to-use API for application programming. |
| org.arl.unet.bb |
Baseband service interface. |
| org.arl.unet.diversity |
|
| org.arl.unet.link |
Link interface and agents. |
| org.arl.unet.localization |
Ranging and localization interface and agents. |
| org.arl.unet.mac |
Medium access control (MAC) interface and agents. |
| org.arl.unet.net |
Multi-hop routing interface and agents. |
| org.arl.unet.nodeinfo |
Node information interface and agents. |
| org.arl.unet.phy |
Physical layer interface definition. |
| org.arl.unet.portal |
Portal agents. |
| org.arl.unet.remote |
Remote node control interface and agents. |
| org.arl.unet.scheduler |
Scheduler interface and agents. |
| org.arl.unet.shell |
Shell support scripts. |
| org.arl.unet.sim |
Network and channel simulator. |
| org.arl.unet.sim.channels |
Network simluator channel models. |
| org.arl.unet.state |
Agent state manager. |
| org.arl.unet.transport |
End-to-end data transport interface and agents. |
| org.arl.unet.utils |
Utility classes. |
| org.arl.unet.wormhole |
Wormhole agent. |
| org.arl.yoda |
Software defined modem. |


Testing camera at <IP_ADDRESS>:8080. warning no attempts to limit memory consumption are made.
take picture
take 60 pictures fast
take 60 pictures medium
take 60 pictures slow
get many lasers
test triggers
make sure projector is connected
test shutter
HDR
go nuts


This guide has been moved to: https://fantom-foundation.github.io/guide/getting-started
Clone the repository in the appropriate GOPATH subdirectory:
$ mkdir -p $GOPATH/src/github.com/andrecronje/
$ cd $GOPATH/src/github.com/andrecronje
[...]/andrecronje$ git clone https://github.com/andrecronje/lachesis.git
Lachesis uses Glide to manage dependencies.
[...]/lachesis$ curl https://glide.sh/get | sh
[...]/lachesis$ glide install
This will download all dependencies and put them in the vendor folder.


Welcome To 2021 Stakeholders Elections
The Bike Company
Call Us :<PHONE_NUMBER>
Mail Us<EMAIL_ADDRESS>home
Election Results
Loading...
#
Name
Votes
Select Candidate
Vote


Normal
Normal reversed
From last
From last reversed
From center
From center reversed
From index
From index reversed
Range
Range reversed
Range from last
Range from last reversed
Range from center
Range from center reversed
Easing
Easing reversed
Coordinates
Coordinates reversed
Coordinates reversed
Coordinates reversed


Pizza lovers is a well recognized company due to it's experienced staff
CEO & Founder
He discovered pizaa lovers in 1997, and the company has become a success
<EMAIL_ADDRESS>Art Director
She deals with art decoration of the company, especially on the webpage.She has created an impact to this company
<EMAIL_ADDRESS>Designer
Deals with the designs of the company,especially the advertisation part
johndoe@gmail.com


MATLAB, python, C++, C#, Java, R, SQL, Razor, HTML/CSS, and JavaScript
Arduino, Git, PowerShell, Bootstrap, MVC ASP.NET, Entity Framework, Dapper, and Adobe Photoshop
AnalyzeDirect, RadiAnt DICOM Viewer, SolidWorks, SEM
Cantonese and French
Biomedical Engineering Student at University of Waterloo


A/B Testing
The goal of this project was to serve two webpages (A and B) with slightly different stylings and determine whether the changes impacted user interactions using statistical methods such as 2-sample t tests and chi2 tests. >A/B testing is particularly practical because it enables us to justify design changes in a quantitative way.
This project involved making 2 slightly different versions of a mock store page, collecting user behavior data, and performing statistical analysis to determine if one version of the page was better than the other.
Too Long; Don't Want to Read
For impatient readers, here were my key takeaways from this project.
- Unless there are a lot of users (definitely more than 30) whom we could collect data from, only relatively large changes between A and B will see statistically different behavior.
- Random sampling/routing of users between A and B can provide undesirable results for small sample sizes (I had vastly more data points for one page than the other).
- Understanding what each statistical test tests for is crucial. It can be easy to misuse a test and invalidate all results.
Now let's get to the nitty gritty details of this project!
Setup
The first step of of this project was to create a webpage with 2 different versions to show to users. The original website was a simple storefront page that allowed users to add various cacti products to their carts.
I modified this original website to come up with my A and B webpages.
A
Notable changes:
- All of the product images a fixed width of 200px (they were variable before).
B
Notable changes:
- All of the product images a fixed width and height of 200px. Because not all of the pictures were square, I used some CSS styling to automatically center and crop the images.
- The count of how many of each product was in the cart was included in the "Add to Cart" button next to the product images.
C (the checkout page)
This page showed the total cost of the contents of a user's shopping cart and was reachable from both A and B. This page was identical for all users, and it was used to calculate the "return rate" statistic, which I will describe in a later section.
Delivery
The test website hosting both versions of this website ran on Flask and randomly showed visitors either A or B (50/50 split) after assigning each visitor a unique id (stored as a cookie inthe browser).
The test website was served from a Heroku instance.
Here's a link to the testing website again.
Metrics and Hypotheses
There were 2 main metrics I wanted collect:
- Time to Completion: the amount of time between when a user first loads a page and when the user is finished using the page (finished the task of adding $150 worth of merchandise)
- Return Rate: the rate at which users returned from page C to either page A or page B (returned from the shopping cart page to the storefront page)
Time to Completion
Null Hypothesis: The average time to completion for page B will be greater than or equal to that of page A.
Alternative Hypothesis: The average time to completion for page B will be less than that of page A because the more fixed sizes of the images mean that all "Add to Cart" buttons are more aligned with each other and easier to click.
Return Rate
Null Hypothesis: The return rate of page A will not differ from the return rate of page B.
Alternative Hypothesis: The return rate of page A will be different from the return rate of page B because the "Add to Cart buttons" on page B makes the number of each product in the cart clearer to users.
Data Collection
Most of my data was collected through the students of Brown University's CSCI 1300 (UIUX) course. I submitted the link to my testing website to a pool of links from other students, and we accessed each other's websites with the goal of adding $150 worth of merchandise to our carts.
Every time a user loaded and interacted with the website/webpage, requests were sent to the flask backend and logged for later perusal.
Here is an example of a filtered log capturing usage data:
2020-10-21T13:08:47.884934+00:00 app[web.1]: AB_TESTING: B<PHONE_NUMBER>856 0 0 ipfdms
2020-10-21T13:08:49.601135+00:00 app[web.1]: AB_TESTING: B<PHONE_NUMBER>856<PHONE_NUMBER>581 mp4 ipfdms
2020-10-21T13:08:49.756322+00:00 app[web.1]: AB_TESTING: B<PHONE_NUMBER>856<PHONE_NUMBER>738 mp4 ipfdms
2020-10-21T13:08:49.937108+00:00 app[web.1]: AB_TESTING: B<PHONE_NUMBER>856<PHONE_NUMBER>920 mp4 ipfdms
2020-10-21T13:08:50.126667+00:00 app[web.1]: AB_TESTING: B<PHONE_NUMBER>856<PHONE_NUMBER>103 mp4 ipfdms
2020-10-21T13:08:50.452942+00:00 app[web.1]: AB_TESTING: B<PHONE_NUMBER>856<PHONE_NUMBER>437 mp4 ipfdms
2020-10-21T13:08:51.494703+00:00 app[web.1]: AB_TESTING: C<PHONE_NUMBER>476 0 0 ipfdms
Each line represents a separate user action. The overall format is (taken from the project handout):
<timestamp> AB_TESTING <ver. a/b> <page load time> <click time> <id of clicked element> <sessionID>
Metric Calculations
Here is how I calculated the 2 main metrics that I was trying collect:
- Time to Completion: the amount of time between when a user first loads a page and when the
user is finished using the page (finished the task of adding $150 worth of merchandise)
- Calculated by taking the difference between the last and first timestamps recorded under a user.
- Return Rate: the rate at which users returned from page C to either page A or page B
(returned from the shopping cart page to the storefront page)
- Calculated by counting how many users returned from page C to a pages A or B, and how many didn't.
Limitations and Outliers
Because of Heroku's log length limit, I could only collect useful data points from 30 unique users.
Additionally, I discarded data that showed users:
- doing nothing after loading the page
- took excessive amounts of time on the webpage (1 or 2 orders of magnitude greater than the average/median); this applied to 2 unique users
Data Analysis (Significance Tests)
I performed significance tests for both of my metrics at a signficance level of 0.05.
Using scripts that I wrote to calculate p-values for 2-sample t tests and chi2 tests, I fed in my data and found the following results.
Time to Completion
Since this metric was about the difference between 2 means, I used an independent samples t-test.
My p-value was 0.08276
Since 0.08276 > 0.05
, I failed to reject my null hypothesis that "the average time to
completion for page B will be greater than or equal to that of page A".
Return Rate
Since this metric was about categorical data (return vs no return), I used a chi2 test.
My p-value was 0.6117
Since 0.6117 > 0.05
, I failed to reject my null hypothesis that "the return rate of page A
will not differ from the return rate of page B".
Conclusions & Takeaways
- The tests for both of my metrics were not conclusive. I feel that is probabaly because:
- my changes between A and B were not noticeable enough, and
- my overall lack of data (especially for page A).
To get more conclusive results next time, I could try more drastic layout changes and try to get a larger set of test data (and make sure that the split between A and B is about even).


config library
This library lets you change the way CSS rule is inserted into the DOM and change how unique class names are generated.
The config needs to be done before any function in this package is called.
import 'config.dart' as config;
String generateAwesomeName() => 'awesome';
void main() {
config.generateUniqueName = generateAwesomeName;
}
Classes
- AbstractStyleSheet
- An interface for managing CSS rules. [...]
- BrowserStyleSheet
-
A stylesheet which will insert rules into a
<style>
tag. [...] - ServerStyleSheet
- A stylesheet which will concatenate rules into a string that can be used for server-side rendering. [...]
Constants
Properties
- generateUniqueName ↔ NameGenerator
-
A unique class name generator which will be used across the library. [...]
read / write
- sheet ↔ AbstractStyleSheet
-
An
AbstractStyleSheet
which will be used to manipulate CSS styles across the library. [...]read / write
Functions
-
generateIncrementalName(
) → String - The default NameGenerator. [...]
Typedefs
-
NameGenerator(
) → String - An interface for a unique class name generator.


Member have to make Crane Model from the Straw stick.
Round 1: Elimination Round
The Participant has to make crane model with in the required time limit.
The winning criteria or elimination criteria and tolerance of model will be discussed on event day.
3 members only
7th March 2017
10:00 to 12:00 PM
Old Civil Engg. Department
Rs. 150 (per Team)
Rahul Khatri
8866242032
8866242032rk@gmail.com


40th Anubhav Mantap Utsav at Basavakalyan from Saturday
770 students to give performances based on the Vachanas
by Staff ReporterThe 40th Sharan Kammata Anubhav Mantap Utsav organised by the Vishwa Basava Dharma Trust would be held at Basavakalyan in Bidar district on November 23 and 24.
Head of the Bhalki Mutt and president of the Anubhav Mantap Basavalinga Pattadevaru addressing presspersons in Kalaburagi on Tuesday said that Union Law Minister Pralhad Joshi would inaugurate the two-day event.
Deputy Chief Minister Govind Karjol will release volumes of Vachanas authored by writers in Kannada and Marathi.
As many as 770 students from Nupur Nritya Academy, Bidar, would give performances based on the Vachanas.
Dr. Pattadevaru said that the utsav would mainly focus on the Vachanas in musical form.
A seminar would be held on the Vachanas traditions and their rise.
In the evening session, the Guruchannabasva Samskritika Kala troupe will perform a play, Mahakranti.
On November 24, a seminar will be held on Vachana Kalyan-Tatvika Chintane.
Awards
Basavanand Mahaswami of Sriguru Basava Mahamane, Managundi, will be conferred with the Dr. Channabasava Pattadevaru Anubhav Mantap Prashasthi in recognition of his contribution to society.
The trust will confer the Dr. M.M. Kalburgi National Research Award on Jayashree Dande and Veeranna Dande for their extensive research works on Basava philosophy.
Competition
Three students who recite the Vachanas by Basaveshwara at the event would get a cash prize of ₹ 10,000, ₹ 5,000 and ₹ 2,000, respectively.
Dr. Pattadevaru said that the Anubhav Mantap Trust had sought ₹ 650 crore from the State government for the comprehensive development of the Anubhav Mantap at Basavkalyan.
Recently, the State government allocated ₹ 50 crore and released ₹ 20 crore to take up the development works in the Anubhav Mantap phase-wise, he added.


|
Zigbee Application Framework API Reference
EmberZNet <IP_ADDRESS>
For the EFR32 and EM3xx Platforms
|
Macros | |
| #define | EMBER_AF_DOXYGEN_CLI_COMMAND_DEMAND_RESPONSE_AND_LOAD_CONTROL_ZCL_DRLC_LCE |
| zcl drlc lce [eventId:4] [utilityEnrollmentGroup:1] [start:4] [duration:2] [eventControl:1] More... | |
| #define | EMBER_AF_DOXYGEN_CLI_COMMAND_DEMAND_RESPONSE_AND_LOAD_CONTROL_CL |
| zcl drlc cl [issuerEventId:4] [deviceClass:2] [utilityEnrollmentGroup:1] [cancelControl:1] [effectiveTime:4] More... | |
| #define | EMBER_AF_DOXYGEN_CLI_COMMAND_DEMAND_RESPONSE_AND_LOAD_CONTROL_CA |
| zcl drlc ca [cancelControl:1] More... | |
| #define | EMBER_AF_DOXYGEN_CLI_COMMAND_DEMAND_RESPONSE_AND_LOAD_CONTROL_GSE |
| zcl drlc gse [startTime:4] [numberOfEvents:1] [issuerEventId:4] More... | |
This group describes the CLI commands for the Demand Response and Load Control cluster. Listed below is a description of the cluster:
This cluster provides an interface to the functionality of Smart Energy Demand Response and Load Control. Devices targeted by this cluster include thermostats and devices that support load control.
| #define EMBER_AF_DOXYGEN_CLI_COMMAND_DEMAND_RESPONSE_AND_LOAD_CONTROL_CA |
zcl drlc ca [cancelControl:1]
| #define EMBER_AF_DOXYGEN_CLI_COMMAND_DEMAND_RESPONSE_AND_LOAD_CONTROL_CL |
zcl drlc cl [issuerEventId:4] [deviceClass:2] [utilityEnrollmentGroup:1] [cancelControl:1] [effectiveTime:4]
| #define EMBER_AF_DOXYGEN_CLI_COMMAND_DEMAND_RESPONSE_AND_LOAD_CONTROL_GSE |
zcl drlc gse [startTime:4] [numberOfEvents:1] [issuerEventId:4]
| #define EMBER_AF_DOXYGEN_CLI_COMMAND_DEMAND_RESPONSE_AND_LOAD_CONTROL_ZCL_DRLC_LCE |
zcl drlc lce [eventId:4] [utilityEnrollmentGroup:1] [start:4] [duration:2] [eventControl:1]


A basic use case example using the OpenLayers.light version of the library.
Shows popup info bubble when hovering over features on the map
This example uses OpenLayers.light.js to display features and show popup info bubbles when the feature is hovered over.
See the light-basic-FP.js source to see how this is done.


{% load static %}
This application was created by Lars Rinn for giving a talk explaining issues that arise in web applications when performing long running computations. Fractals are created using code written by Danilo Bellini