Hi,
I have an emonTX shield running 4 CTs monitoring 3 phase + 1 for off peak hot water, with voltage monitoring and 230v (Australia).
In my prior tests, everything has been working fine. I have now moved the CTs to the meter box and am seeing some weird values being read on the blue phase. Here is a link to the graph:
http://emoncms.org/vis/auto?feedid=63828
As you can see, there are a number of spikes which completely throw out the measurements. Here's a link to the other two phases for reference:
http://emoncms.org/vis/auto?feedid=63790
http://emoncms.org/vis/auto?feedid=63785
I'm not sure what could be causing this. Maybe a faulty input on the Arduino? I have tried switching the CTs between phases, so that has been ruled out as the issue.
Any assistance is much appreciated. Let me know if there is any additional information that is required.
Cheers
Re: Extremely high values being read from CT at random intervals
It might not even be your Arduino! What are the units of the 'y' axis, Watts? The maximum you can measure, given 230 V and the input scaled for a 100 A CT, is 23 kW. OK, there's some 'headroom' above that but you won't get anywhere near 800 kW from the maths. I think you can rule out the ADC and the input side.
So if you are reading 800 kW it's either the Arduino inventing big numbers - meaning it is picking up interference that is coming in via your electricity supply, or your base is picking up something that's being interpreted as a transmission from your Shield. Does your electricity company put HF signals on the network for control purposes? If so, you could be picking that up.
You could add a software limit inside your Arduino sketch - that would indicate whether it is the Arduino (the peaks get clipped at the limit you set) or not.
Re: Extremely high values being read from CT at random intervals
Thanks for the quick reply!
The y axis is indeed watts. The 3 phase MCB is only rated to 80A, and there aren't any loads which would come close to that on that phase.
There are no HF signals where I live. Off peak power is controlled by a timer supplied by the distribution provider and is located in the meter box. Not sure if this timer may be emitting some interference, but the timer sits on the red phase, whereas the 'noise' is on the blue phase.
Can't be the base picking up random signals, as the arduino is connected directly to an OpenWRT router via USB running emonhub to submit the values to emoncms.
Wonder if I can put in the sketch something like this:
if value > 10000, then use the last value measured for that phase.
although it would be preferred to get to the root of the issue. I have ordered a (knockoff) Arduino Leonardo to rule out the ADC on that channel.
Re: Extremely high values being read from CT at random intervals
"although it would be preferred to get to the root of the issue. I have ordered a (knockoff) Arduino Leonardo to rule out the ADC on that channel."
Yes, finding the cause is best, but wrong about the ADC. In the 328P at least, there is only one ADC, it is switched between inputs (see the Atmel data sheet).
And that is indeed the sort of limit I was thinking about (but I would force it to zero so that you at least know about it). Looking more closely at your data, the rogue numbers all appear to be single values, but there also appear to be some single zero values. This might be telling us something.
What values is emonHub getting, can you monitor and check? If you can see exactly what is coming in, that might indicate the area to look at. IS the data sent as ASCII characters or bytes? Is the USB link dropping characters and it's concatenating consecutive numbers? We need to ask Paul (pb66) about that.
Re: Extremely high values being read from CT at random intervals
Looking at the logs, it appears there is some weird rounding going on. Here's an example of a line with the blown out value for CT3
2014-12-27 09:49:34,350 INFO emonCMS sending: http://emoncms.org/input/bulk.json?apikey=E-M-O-N-C-M-S-A-P-I-K-E-Y&data=[[1419635974.2000002,5,672.63,227.98,194.85,-24.48,242.08,20.1,38.9,19.5,23.5]]&sentat=1419635974
The headers for the arduino values are: [[Node ID, CT1 power, CT2 power, CT3 power, CT4 power, Voltage, temp, humidity, temp, temp]]
here is the full log (~4mb) (you'll see what I mean by weird rounding with excessive decimal points): http://www.users.on.net/~teepingkoh/emonlog.txt
Re: Extremely high values being read from CT at random intervals
Weird indeed. (Sorry, but I'm not going to wade through 4 MB of data!) You need to discover where that corruption is happening, have you put a limit on the Arduino output?
Have you got anything that could be causing conducted or radiated interference? I think it is an appliance. Looking at the emoncms output, there appears to be a fairly regular pattern. There is a bunch of spikes about 4 mins apart (sometimes it misses one or two, so 8 mins, and sometimes there's one in between, then there is a gap of about 40 mins. You are looking for something that is cycling, running for about 15 mins every hour (give or take 10 mins), a boiler or aircon, or a fridge or freezer? If you can't tie it down to something of yours, is it a neighbour's?
Which phase is your Arduino powered off?
Re: Extremely high values being read from CT at random intervals
The only thing that has changed is that now I am using a router with emonhub on it which is connected back to the internet via Wifi which sits in the meter box with the arduino, so within 10cm of each other. Previously I was using a laptop which sat a meter or so away. The router + arduino is inside an oldish metal meter box outdoors.
The only cyclic appliances would be fridges. Hot water is solar, so we have the booster off for the summer to conserve power.
Arduino is powered off the router via USB, which is powered off phase 1. Maybe it would help powering the arduino directly.
Are you sure that the rounding issues would be caused by inteference? Would wifi be able to cause this kind of inteference?
Re: Extremely high values being read from CT at random intervals
Hmm interesting. I have wrapped the arduino in aluminium foil and grounded it to make a faraday cage of sorts. seems that the spikes have stopped for now.
http://emoncms.org/vis/auto?feedid=63828
check the last few hours
edit: looks like i spoke too soon. I will edit the code tomorrow and see how it goes. Weird that it's only on a single phase though.
Re: Extremely high values being read from CT at random intervals
Hi Guys, interesting stuff!
I'm inclined to agree with Robert about the stray values being interference and suspect they are more likely to be conducted rather than radiated (therefore unfoiled by the foil), It would be good to see the input as well as the output values from emonHub's logs to confirm the issue is not related to the rounding issue we see.
The rounding is odd and I believe peculiar to your set-up (as far as I'm aware) which makes me wonder if openWRT does something different with floats. None of the values with additional decimal places are significantly changed. This is illustrated with the unix time stamps, derived from time.time() and although the precision isn't enforced in emonHub the "natural" level of precision I have experienced in windows and linux has always been 3 decimal places, but in your log we can clearly see 7 places, frequently.
I took a small sample from your data and stuck it in excel (sidenote - excel wouldn't even display the extra decimal places as the significance was so minor). In the sample I took there were 4 obviously abnormal occurrences, in the attached excerpt, you can see by the preceding and following datapoints there was nothing abnormal outside the fact that the ct3 value is momentarily out of range. ie no effect to other phases, no missing packets, no concatenating of values etc.
Could you run emonHub with loglevel set to DEBUG? and then from emonCMS identify a "spike" and find that packets full journey through emonhub in the log by the timestamp to confirm the value is passed faithfully by emonHub.
If you are confident this was previously working ok you could try switching back to the previous set-up to confirm that is still the case and then either switch to using the laptop with the CT's where they are now or move the router so that you can put the ct's back where they were previously to try and narrow the search.
Paul
Re: Extremely high values being read from CT at random intervals
Thanks for the insight Paul! I have change the log level to debug, so I will let that run overnight and post the relevant bits of the log in the morning.
for now, here's a single entry with the extra precision being added:
2014-12-29 01:50:41,623 DEBUG 338 NEW FRAME :<PHONE_NUMBER>.62 5 947.24 132.67 388.81 -24.25 243.72 19.40 58.40 17.75 24.37
2014-12-29 01:50:41,628 DEBUG 338 Timestamp :<PHONE_NUMBER>.62
2014-12-29 01:50:41,632 DEBUG 338 Node : 5
2014-12-29 01:50:41,636 DEBUG 338 Values : [947.24,<PHONE_NUMBER>9999997, 388.81, -24.25, 243.72, 19.4, 58.4, 17.75, 24.37]
So it would appear to be something in the script processing which is doing that. WIll need to see in the morning with an abnormal reading to confirm.
With the previous setup, I was using the older oemgateway script running on os x. I can try running the oemgateway script on openwrt, or emonhub on my laptop to try and pinpoint if openwrt is doing something odd.
Will report back with logs in the morning!
Re: Extremely high values being read from CT at random intervals
I think the data above confirms that the python float behaves differently on openWRT the value "132.67" is fine as a string but when converted to a float it becomes "132.66999999999997" which is incorrect, some would say "near enough" but none the less it's not "132.67". This is not seen on windows or raspbian. I do not know enough about openWRT or the "floats" minefield to offer an explanation or a solution I'm afraid. I don't think forcing emonhub to round at a preselected level is the answer as this would then produce unfaithful results for higher precision floats.
Although you may get a very very small level of inaccuracy introduced by the precision I think this will be lost in the overall results and only poses an increase in the number of characters posted to emoncms from emonHub and is most probably unconnected to the issue in hand.
Re: Extremely high values being read from CT at random intervals
I'll have to look into that further. My eventual plan is to get an Arduino Yun and put the shield on that to have a fully contained unit. Such a small inaccuracy is not much of a concern though.
The results of the debug log are in. I have taken out a few samples of the abnormal results and pasted them below.
Here's the full log: http://www.users.on.net/~teepingkoh/emonlog-debug.txt
Abnormal values are on (approx) lines: 254, 1535, 2088, 2942, 3547, 4359, 4709, 5367, 7696, 8844, 10144, 11150 ,11297, 11318, 11381, 11402, 11871, 12410, 13040, 14448, 17398, 18154, 19260, 19601, 26425, 30953, 31023, 32639, 33825
Cheers
Edit - wrapped long lines - BT
Re: Extremely high values being read from CT at random intervals
The examples you've picked out all show the "spike" is present before the packet is processed by by emonHub, so the issue isn't related to the float precision or being introduced by emonHub.
Another test that may help you narrow the search could be to swap 2 ct leads over at the emontx and swap the input numbers in emoncms (while emonhub is stopped), so you have same phase, same ct, different channel via emontx/sketch/emonhub etc and still logging to the same feeds so your data isn't effected. If the "spikes" remain on the same phase the source is definitely external to both the software and the hardware as you have already ruled out the ct's themselves.
Beyond tips on narrowing the search or eliminating parts I'm not sure I can help you much if it is interference as we suspect, Maybe Robert can assist you further with some prevention or filter tips but it's probably just going to be a process of elimination unless you add some sanity checks to the sketch.
Re: Extremely high values being read from CT at random intervals
I think swapping the CTs over to different channels isn't as easy as it seems due to me using direct voltage sampling and 3 phase, meaning i need to probably change some parameters in the sketch to account for this. I might give it a shot and see tomorrow.
If that leads to the same issue, I will just add some error checking into the sketch.
Would it do any good to add some ferrite chokes to the CT leads to possibly stop interference there?
Re: Extremely high values being read from CT at random intervals
That might help. If you're pretty sure the source is not under your control, then ferrite chokes on the mains input would be a better (but more expensive) solution. There are commercial mains filters available.
First, try taking the CTs off their cables and moving them as far away as possible. If the problem is still there the same, I'd bet it's not getting in via the CTs, and you need to look at the power supply.
If it is coming via the CTs, then it's probably capacitive coupling onto the secondary winding.
You could try to fashion an earthed foil screen around the CT secondary winding, but make absolutely sure you don't form a single shorted turn anywhere.
The real problem with the CT leads (all the YHDC ones that I've looked at) is that they are twin twisted screened cable, the screen has no connection at the CT end (correct) but it might or might not have a connection at the plug end - I've seen all 3 variants: a deliberate connection, no connection and an 'iffy' connection. If you have an 'iffy' or no connection, a deliberate connection to the plug sleeve might help. Better, probably, would be if you stripped the screen back a little, brought it out and connected it to GND (directly, not via the plug sleeve and the capacitor). A ferrite bead then on the inner cores might help.
(If you do swap the phases around, you need to swap in "G" section in "sumP1 += phaseShiftedV1 * filteredI1;" ) If you don't swap, the powers and power factors will be wildly wrong (because there's now ±120° of artificial phase shift in there), but the spikes will surely still be huge in relation to the wanted input.
Re: Extremely high values being read from CT at random intervals
So today I switched around CTs 3 and 4, and just changed the pin assignment in the sketch (seemed like the easiest way to swap it around).
No spikes in the data recorded since! CT4 has currently no power draw on it but it's not seeing any spikes at all. seems odd?
Will monitor how it goes over the next day or so to confirm that the issue is gone. Is it possible that there is something wrong with that input on the Arduino?
http://emoncms.org/vis/auto?feedid=63828
Re: Extremely high values being read from CT at random intervals
Maybe a CT cable plug not pushed all the way home in its jack?
Re: Extremely high values being read from CT at random intervals
Definitely not the issue. Could be a cold solder join, but it all looks fine.
Re: Extremely high values being read from CT at random intervals
"Is it possible that there is something wrong with that input on the Arduino?"
I can't see how that on its own could account for the values you saw. The sampled value, which just has to be within the range 0 - 1023 as that's all you can get out of the ADC, must go through the library power or rms algorithm and come out as several hundred kW? Even if it was a square wave, it couldn't be that big - only about 34 kW maximum (given a 100 A input), unless of course you are getting values bigger than 10 bits out of the ADC, then there's the effect that would have on the software HP filter to consider.
Let's just assume the software filter sits at 512 and stays there, and you get out of the ADC a square wave with 25 samples of 0 followed by 25 samples of 65535. And assume (to make the answer worse and the maths easier!) the voltage wave is similar but values of 0 and 1023. V x I is then -512 x -512 for the first half, and 512 x 65023 for the second. Averaging and taking the root gives 4096 (and a bit - ignore it). Now the 'standard' input is a sine wave that swings 512 maximum, usually about 470 allowing some for tolerances, so the average of two of those multiplied together is about 330, which scales to 24 kW, so the maximum I can envisage given those quite extreme conditions is about 300 kW. That's still not enough - only a third of what you recorded.
Re: Extremely high values being read from CT at random intervals
Well I'm completely lost as to why switching pins in the code seems to have fixed the issue. I have a spare arduino coming so will swap that out and see if that is any different.


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The worker
What This Guide Covers
This guide covers Travis Worker
, build lifecycle and how they interact with Travis VMs
and
Travis Hub
. Please make sure to read Technical Overview first.
Please note that this guide needs rewriting after v3 release in November 2011. Most of the content is still relevant but need clarification.
Application domain
The following classes encapsulate the application domain model concepts. I.e. they are part of the application server code, can be stored as ActiveRecords and are targetted at being published through the JSON API and/or sync’ed over to the client app through websocket messages.
Request
A Request is what external services, like currently Github, send to Travis Server. It contains the sent payload and has a one-to-one relationship to a Build.
Build
A Build implements the concept of a highlevel grouping of Tasks (units of work). It is triggered by the Request. A Build has a configuration and at least one Task but can own many tasks, depending on its configuration. It can also be rejected based on the configuration.
A Build has the following states:
- created
- configured
- started
- finished
- errored
- cancelled
A quick note on build distribution: At the moment, we’re using Redis as a poor man’s message queue. We’re migrating to AMQP currently, so there’s a lot of change in this area. Conceptually, it’s very similar, however.
Task
Tasks are classes that represent elementary units of work.
Task::Configure and Task::Test are examples of a concrete task types and these are the only ones currently implemented. In future there might be other types of Tasks, e.g. building rdocs, gathering code metrics, triggering deployments and so on.
A Task has the following states which apply to all concrete Task types:
- created
- started
- finished
- errored
- cancelled
When a Task is created then the respective job that maps to this task is also created and added to the job queue.
Task::Configure
A Task::Configure encapsulates the concept of configuring a Build before it will be executed.
Configuring a Build is a separate task because configuration can be (and currently exclusively is) stored remotely so fetching can fail etc.
Task::Test
A Task::Test encapsulates the concept of fetching source code, installing dependencies and executing a test suite.
Additionally to the common Task states a Build::Test can be in the following states:
- cloned
- installed
Worker domain
On the worker side Tasks encapsulate the actual execution of units of work and map to respective Task classes on the application side.
Task::Configure
A Task::Configure fetches configuration data. It is fetched from a job queue, executed and reports the configuration back to the application.
Task::Test
A Task::Test fetches code from an SCM (git clone), installs dependencies (rvm, bundle install), executes before_script, build script and after_script and reports results back to the application.
Control Flow
When a build request comes in then a Request and a Build is created. The Build will create its Task::Configure and push it onto the job queue.
The worker will pick up the Task::Configure and start working on it. It will send messages back to the application which will trigger state changes on the respective Task::Configure on the server side.
If the Task::Configure errors then the containing Build will immediatedly go into the same state and stop proceeding. (At a later stage we might retry the errored task for particular reasons, like Github was down.)
Once the Task::Configure has finished and the build is approved then the Build will create and queue one or more Tasks according to the configuration (for starters these will be at least one Task::Test).
The worker will then pick up the Task::Test and start working on it. It will send messages back to the application which will trigger state changes in the respective Task on the server side.
When a Task has started then it notifies the containing Build which goes into the same state when first notified. (I.e. it goes into the started state as soon as the first contained Task has started.)
When a Task has errored or finished then it notifies the containing Build which goes into the same state, too, as soon as all contained Tasks are errored or finished.
When the Build is cancelled at any time then all tasks belonging to the build are cancelled and messages are sent to the workers which also cancel the jobs (or take them off the queue).
So, in more detail:
Build creation
- Github pings
- Server creates a Request
- Server creates a Build with the Request
- Server emits a build:created event
- Server gets the Build::Configure from the Build and enqueues it
- Server emits a build:configure:queued event
Build configuration
- Hub starts the Build::Configure
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Build approval
- Hub saves the configuration.
If the build is eligible (i.e. not excluded by the configuration) then:
- Hub creates one or many Build::Tests
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Build::Test execution
- Worker starts a Build::Test
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Build::Test completion
- Hub saves the job result and log
Build completion
- If all Build::Tests are finished then the Build is finished, too
- App then emits a build:finished event


Ecology Review
Questions
-
What is ecology?
Answer: Ecology is the study of interactions among living things, and between living things and their surroundings. -
What are the three main methods of ecological research? What are the advantages and disadvantages of lab/field experimentation?
Answer: Observation, experimentation, and modeling are the three main methods of ecological research. Experimentation has two types: lab and field. Lab experimentation allows for more control, but the artificial setting does not reflect the interactions that occur in nature. Field experimentation gives more accurate reflections of the interactions that occur in natural settings. However, it is more difficult to determine cause and effect due to the large amount of factors at work in nature. -
Describe the 5 levels of ecological organization.
Answer: The levels are,- Organism An organism is an individual living thing
- Population A population is a group of the same species that lives in one area
- Community A community is a group of different species that live together in one area
- Ecosystem An ecosystem includes all of the organisms as well as climate, soil, water, rocks, and other nonliving things in a given area
- Biome A biome is a major regional or or global community of organisms, and are characterized by the climate conditions and plant communities that thrive there
-
Differentiate between biotic and abiotic factors. Provide examples of each.
Answer: Biotic factors are living things, such as plants, animals, fungi, and bacteria. Abiotic factors are nonliving things such as moisture, temperature, wind, sunlight, and soil. -
What is biodiversity? What is the correlation between biodiversity and the health of an organism?
Answer: Biodiversity is the the assortment, or variety, of living things in an ecosystem. The health of an organism relates to biodiversity because, depending on the biodiversity of an ecosystem, the organism thrives off of the natural resources produced by that certain biodiversity. -
What are keystone (indicator) species, and what do they tell you about the overall "health" of an ecosystem?
Answer: A keystone species is a species with an unusually large effect on its ecosystem. -
Explain how energy is transferred from one trophic level to the next trophic level in an energy pyramid. What happens to the "lost" energy, due to the fact that energy cannot actually be lost?
Answer: Energy can be transferred from one organism to another by either consumption of the energy source (eating), or creating its own energy through chemosynthesis or photosynthesis. The energy is lost, however, due to the the energy consumption process being 90% inefficient. Thus, 90% of the starting energy is lost. But, it is not actually "lost". Instead, it is either converted or transformed into different types of energy. -
Mathematically, explain why it is rare for ecosystems to have a 4th level consumers.
Answer: 4th level consumers don't normally exist in ecosystems due to the fact that they would have to consume insanely large amounts of organisms in order to survive. This is because they only receive an average of 0.01% of the starting energy from the sun from its prey. -
What is symbiosis?
Answer: Symbiosis is a close ecological relationship between two or more organisms of different species that live in direct contact with one another. -
What is population dispersion? What are the three types of population dispersion, and why would an organism be dispersed one way rather than another?
Answer: Population dispersion is the way in which individuals of a population are spread in an area or volume. The three types are,- Clumped Dispersion Individuals may live close together in groups in order to facilitate mating, gain protection, or access food resources
- Uniform Dispersion Territoriality and intraspecies competition for limited resources lead to individuals living at specific distances from one another
- Random Dispersion Individuals are spread randomly within an area or volume
-
What are the three types of reproductive strategy?
Answer: There are three types of reproductive strategies,- Type I Type I survivorship represents a life history that is common among large mammals, including humans
- Type II Organisms such as birds, small mammals, and some reptiles show a survivorship rate that is roughly equal at all ages of an organism's life
- Type III Organisms with type III have a very high birth rate and also a very high infant mortality rate
-
What is carrying capacity?
Answer: The carrying capacity of an environment is the maximum number of individuals of a particular species that the environment can normally and consistently support. -
What are limiting factors?
Answer: The factor that has the greatest effect in keeping down the size of a population is called the limiting factor.


public class RBNode<T extends java.lang.Comparable<T>>
extends java.lang.Object
| Modifier and Type | Field and Description |
|---|---|
static boolean |
BLACK |
private boolean |
colour |
private T |
data |
private boolean |
isDeleted |
private RBNode<T> |
leftChild |
static boolean |
RED |
private RBNode<T> |
rightChild |
| Constructor and Description |
|---|
RBNode(T data)
Public constructor that creates a new RBNode, initiates the colour as red
|
| Modifier and Type | Method and Description |
|---|---|
void |
delete()
Public method to delete a node.
|
void |
display(int n)
Public method to display the node and its subtree.
|
T |
getData()
........\----------------------\
GET METHODS |
.........\---------------------
|
RBNode<T> |
getLeftChild()
Public method to return the left child of the node
|
RBNode<T> |
getRightChild() |
boolean |
isDeleted() |
boolean |
isRed() |
void |
setBlack() |
boolean |
setColour(boolean c)
Performs a colour switch
|
void |
setData(T data)
Replaces the current node data with new data
|
void |
setLeftChild(RBNode<T> node) |
void |
setRed() |
void |
setRightChild(RBNode<T> node) |
public static final boolean RED
public static final boolean BLACK
private boolean colour
private boolean isDeleted
public RBNode(T data)
data
- The data to be stored in the nodepublic void setData(T data)
data
- The new data to replace the oldpublic void setRed()
public void setBlack()
public boolean setColour(boolean c)
c
- The new colour to switch topublic void delete()
public T getData()
public boolean isRed()
public RBNode<T> getLeftChild()
public boolean isDeleted()
public void display(int n)
n
- The level of the node and used for the indentation


Dorian:
Oh, come in! Say, you must've dropped this the last time you were here! It looks very valuable! You should keep it in a safe place.


public interface BeanCollection<E> extends Serializable
This also includes the ability to listen for additions and removals to or from the Map Set or List. The purpose of gathering the additions and removals is to support persisting ManyToMany objects. The additions and removals become inserts and deletes from the intersection table.
Technically this is NOT an extension of java.util.Collection. The reason being that java.util.Map is not a Collection. I realise this makes this name confusing so I apologise for that.
| Modifier and Type | Interface and Description |
|---|---|
static class |
BeanCollection.ModifyListenMode |
| Modifier and Type | Method and Description |
|---|---|
void |
addBean(E bean)
Add a bean to the list/set with modifyListen notification.
|
boolean |
checkEmptyLazyLoad()
Check after the lazy load that the underlying collection is not null
(handle case where join to many not outer).
|
Collection<E> |
getActualDetails()
Returns the underlying collection of beans from the Set, Map or List.
|
Collection<?> |
getActualEntries()
Returns the underlying entries so for Maps this is a collection of
Map.Entry.
|
ExpressionList<?> |
getFilterMany()
Return the filter (if any) that was used in building this collection.
|
Set<E> |
getModifyAdditions()
Return the list of objects added to the list set or map.
|
BeanCollection.ModifyListenMode |
getModifyListening()
Return the current modify listening mode.
|
Set<E> |
getModifyRemovals()
Return the list of objects removed from the list set or map.
|
EntityBean |
getOwnerBean()
Return the bean that owns this collection.
|
String |
getPropertyName()
Return the bean property name this collection represents.
|
BeanCollection<E> |
getShallowCopy()
Return a shallow copy of this collection that is modifiable.
|
boolean |
holdsModifications()
Return true if the collection holds modifications.
|
void |
internalAdd(Object bean)
Add the bean to the collection.
|
void |
internalAddWithCheck(Object bean)
Add the bean with a check to see if it is already contained.
|
boolean |
isEmpty()
Return true if the List Set or Map is empty.
|
boolean |
isPopulated()
return true if there are real rows held.
|
boolean |
isReadOnly()
Return true if the collection should be treated as readOnly and no elements
can be added or removed etc.
|
boolean |
isReference()
Return true if this is a reference (lazy loading) bean collection.
|
boolean |
isRegisteredWithLoadContext()
Return true if the collection has been registered with the batch loading context.
|
boolean |
isSkipSave()
Return true if the collection is uninitialised or is empty without any held modifications.
|
void |
loadFrom(BeanCollection<?> other)
Load bean from another collection.
|
void |
modifyAddition(E bean)
Add an object to the additions list.
|
void |
modifyRemoval(Object bean)
Add an object to the deletions list.
|
void |
modifyReset()
Reset the set of additions and deletions.
|
void |
removeBean(E bean)
Remove a bean to the list/set with modifyListen notification.
|
void |
reset(EntityBean ownerBean,
String propertyName)
Reset the collection back to an empty state ready for reloading.
|
void |
setDisableLazyLoad(boolean disableLazyLoad)
Set the disableLazyLoad state.
|
void |
setFilterMany(ExpressionList<?> filterMany)
Set the filter that was used in building this collection.
|
void |
setLoader(BeanCollectionLoader beanLoader)
Set the loader that will be used to lazy/query load this collection.
|
void |
setModifyListening(BeanCollection.ModifyListenMode modifyListenMode)
Set modify listening on or off.
|
void |
setReadOnly(boolean readOnly)
Set to true if you want the BeanCollection to be treated as read only.
|
int |
size()
Return the number of elements in the List Set or Map.
|
boolean |
wasTouched()
Has been modified by an addition or removal.
|
void setDisableLazyLoad(boolean disableLazyLoad)
void loadFrom(BeanCollection<?> other)
void removeBean(E bean)
void reset(EntityBean ownerBean, String propertyName)
This is done as part of bean refresh.
boolean isSkipSave()
Returning true means can safely skip cascade save for this bean collection.
boolean holdsModifications()
EntityBean getOwnerBean()
String getPropertyName()
boolean checkEmptyLazyLoad()
That is, if the collection was not loaded due to filterMany predicates etc then make sure the collection is set to empty.
ExpressionList<?> getFilterMany()
This is so that the filter can be applied on refresh.
void setFilterMany(ExpressionList<?> filterMany)
boolean isRegisteredWithLoadContext()
void setLoader(BeanCollectionLoader beanLoader)
This is effectively the batch loading context this collection is registered with.
void setReadOnly(boolean readOnly)
boolean isReadOnly()
void internalAdd(Object bean)
This is disallowed for BeanMap.
void internalAddWithCheck(Object bean)
int size()
boolean isEmpty()
Collection<E> getActualDetails()
Collection<?> getActualEntries()
For maps this returns the entrySet as we need the keys of the map.
boolean isPopulated()
boolean isReference()
void setModifyListening(BeanCollection.ModifyListenMode modifyListenMode)
This is required only for ManyToMany collections. The additions and deletions are used to insert or delete entries from the intersection table. Otherwise modifyListening is false.
BeanCollection.ModifyListenMode getModifyListening()
void modifyAddition(E bean)
This will potentially end up as an insert into a intersection table for a ManyToMany.
void modifyRemoval(Object bean)
This will potentially end up as an delete from an intersection table for a ManyToMany.
Set<E> getModifyAdditions()
Set<E> getModifyRemovals()
void modifyReset()
boolean wasTouched()
BeanCollection<E> getShallowCopy()
Copyright © 2019. All rights reserved.


--- title: About CloudWeGo linkTitle: About menu: main: weight: 10 --- {{< blocks/cover title="About CloudWeGo" image_anchor="bottom" height="min" >}}
A leading practice for building enterprise cloud native middleware.
{{< /blocks/cover >}} {{% blocks/lead color="primary" %}}CloudWeGo is ByteDance's open source Golang-centric middleware that can be used to quickly build enterprise-class cloud native architectures. It contains many components, including the RPC framework KiteX, the basic network library Netpoll, thrfitgo, and netpoll-http2. By combining the community's excellent open source products, developers can quickly build a complete set of micro-service systems.
{{% /blocks/lead %}} {{< blocks/section >}}Next generation high performance, highly scalable Golang RPC framework.
High-performance NIO (Non-blocking I/O) network library, focusing on RPC scenarios.

High-performance HTTP2 communication based on official HTTP2 source transformation.


JAMES AND THE GIANT PEACH A film review by James Berardinelli Copyright 1996 James Berardinelli
RATING (0 TO 10): 7.5 Alternative Scale: *** out of ****
United States, 1996 U.S. Release Date: 4/12/96 (wide) Running Length: 1:20 MPAA Classification: PG (Scary situations) Theatrical Aspect Ratio: 1.85:1
Cast: Paul Terry, Joanna Lumley, Miriam Margoyles, Pete Postlethwaite; and the voices of Richard Dreyfuss, Susan Sarandon, Simon Callow, David Thewlis, and Jane Leeves Director: Henry Selick Producers: Denise Di Novi and Tim Burton Screenplay: Karey Kirkpatrick, Jonathan Roberts, and Steve Bloom based on the book by Roald Dahl Cinematography: Pete Kozachik and Hiro Narita Music: Randy Newman U.S. Distributor: Walt Disney Pictures
Almost everything that was true of 1993's NIGHTMARE BEFORE CHRISTMAS holds for 1996's JAMES AND THE GIANT PEACH. Based (rather faithfully) on Roald Dahl's children's story, this movie uses a combination of live-action sequences and stop-motion animation to tell the tale of a lonely boy, James (Paul Terry), who finds love during a bizarre, transatlantic voyage in the innards of a gargantuan peach. His companions on the journey are a grasshopper, a centipede, a spider, an earthworm, a glow worm, and a ladybug. In the hands of Henry Selick, who directed NIGHTMARE, this weird story has been transformed into a playful, visually arresting experience with more than a few allusions to THE WIZARD OF OZ.
In this case, the destination isn't Oz, but New York City, which, as envisioned by Selick, is a magical, ethereal place. The story takes place during an era when the Empire State Building is the world's tallest building, and JAMES AND THE GIANT PEACH becomes the second movie to place an overgrown object at its pinnacle. Between England (where the story begins, with James suffering under the repressive thumbs of two ogre-like aunts) and New York, the peach, which is propelled by a flock of harnessed birds, has an ocean splashdown and takes a detour to frozen northern reaches.
Obviously, the primary reason to see JAMES AND THE GIANT PEACH is for its visual splendor. Selick's stop-motion animation is, in its own way, as impressive as the technological marvels of TOY STORY. JAMES' creatures, which include insects, skeletons, birds, and a large-headed boy, are wonderfully exaggerated, but never grotesque. The live-action sequences, which comprise over one-third of the running length, are filmed on intentionally-overstated sets that contribute to a surreal atmosphere not unlike the one visited by Jeunet and Caro in DELICATESSAN and THE CITY OF LOST CHILDREN. Only when real actors and animated characters interact does the visual chicanery slip up.
Of course, all but the youngest children (who could be frightened by certain scenes) will be delighted by the film, and, as was true of NIGHTMARE, the script is written to succeed on more than one level. There are some deliciously wicked lines that few youngsters will get. This crisp dialogue is delivered by the likes of Susan Sarandon (the spider), Simon Callow (the grasshopper), David Thewlis (the earthworm), and Richard Dreyfuss (the centipede), actors with effective vocal presences.
Unfortunately, the film makers have decided to include several completely forgettable musical numbers penned by Randy Newman. Not only are these totally superfluous, but there are times when they hurt the film's pacing. I'd like to know who made the decision that every Disney animated film, no matter who's doing the animation, has to have a share of songs.
Dorothy, accompanied by a dog, a Scarecrow, a Tin Man, and a Cowardly Lion, followed the yellow brick road. James, along with a pack of oversized bugs, follows his dreams. Both reach their destinations, and, once there, discover that it's what they learned on the trip that really matters. In the final analysis, JAMES AND THE GIANT PEACH is undemanding entertainment with a subtle message.
- James Berardinelli e-mail<EMAIL_ADDRESS>web: http://www.cybernex.net/~berardin
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
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Related links: index of all rec.arts.movies.reviews reviews


I’ve delved into the old ways again. But this is not a confession.
Like mountains hanging above the horizon, I simply am what I am — without apologies, even though it causes a lot of confusion. For months I’ve been out on the road in crazy ways, in the air, seemingly everywhere — just like old times.
A few weeks ago I crossed the Atlantic Ocean four times in as many days. Or was it a few months ago? Whenever; it was for logistical reasons, and I learned the hard way that the human body cannot cross the Atlantic Ocean that often without violent consequences.   In the fun house mirrors of those tiny airplane bathrooms, you realize your facial hair grows at an alarming rate at altitude and that there is no amount of water you can throw on your face to feel awake. So you go back to your seat and ask for another scotch…
Yeah…
At duty free shops across Europe I bought many liters of various whiskeys, running amok and going crazy between New York, Reykjavic, Barcelona, Amsterdam, Dublin, London and then a quick hop to Copenhagen. For reasons no one can explain, they kept sending me back to the Dutch water capital, the one place I’m still trying to leave behind. It was all a matter of finishing the work I owed to a complex client, a hydra of an organization with serious self-identity issues. They never knew who was in charge, and I couldn’t talk to anyone there long enough to figure out just who it was that wanted me there so badly. But they never seem to be satisfied, the word always coming down from above, calling me back.
Idiots.
For months this went on. JFK to Schiphol, and back. Layover in Heathrow. Stop in Iceland. Back. JFK to Schiphol, through Zurich. Through Brussels. A reprieve in Barcelona. In Bruges. A quick drive to Göteborg, and back. Newark. And then back. Jesus. I know it’s because they just don’t know what it is they want, but now that it comes to it, I start to wonder if maybe it’s because I don’t either.
No longer a matter of just direction & purpose, the satisfaction I draw from all this seems once again, bound only to my ability to define why it is that I’m here (or there) well enough to take the right steps and make the right demands. At this juncture I need to convince certain powers to sign the right forms. And I could do it, I think.
But my schedule these days makes me tired just documenting it in my calendar, which is so full it can’t possibly still be accurate. It’s time to consider other, more serious prospects than this Bourne-esque meltdown of a fantasy I’ve been scrambling to maintain. The Job, as it were, is paramount to the continued existence of this lifestyle, but it’s entirely unreliable and every time I accept another assignement it feels like taking another drag from a pipe whose embers have long since gone out.
Meanwhile, deep mysteries of curiosity and doubt stir in dark waters that rise and drop for no apparent reason. I do not trust the tides any more than I trust the sea, and when it seems that all things are floating down the river in a manner most becoming for the passenger, I start to wonder…
Questions of purpose, fate, ethics and other forces creep in; riddles in the dark. Notions of what may be next adorn my lists and notes; most words that I put down, in fact. The blocks are falling into place, I think. I’ve made no arrangement with the powers that be as of yet, but a trip down to Orlando a few months ago took me places I did not intend, and the results were, well, momentous, if nothing else.
For a trip I’d not intended to make, it was fortuitous down to the last leg, where I found a $5 bill in the backseat of the cab.
I have been to these conferences before. I’ve clapped at meaningless statements of teamwork and future success for all. I’ve cheered whatever lame cheer we decided we’d all yell to show our intent to rise and succeed in the coming year.  I’ve heard these powerpoint presentations before.
Shit. I think I wrote some of them.
So I wasn’t excited about this latest money-spending fest, even less so because they’d scheduled it around thanksgiving, the busiest travel holiday of the year.
But when I finally got over what my purported duty was at the event and left my executive suite to walk down the hall and play Beirut with some old acquaintances that just happened to be at the same hotel, I was forced to do some serious thinking…
“I tire of this,” I thought. It’s fine to have a life that provides so much time, but that is not freedom. It’s my own signature I really seek, my own approval — I just don’t know which forms to fill out yet.
But you know what I hear is good for learning to fill out forms? Grad School.
…yeah.


check_commandline(3f) - [ARGUMENTS:M_CLI] check status from READ of NAMELIST group and process pre-defined options
Synopsis
Description
Options
Example
subroutine check_commandline(ios,message)
integer,intent(in) :: ios character(len=*),intent(in) :: message character(len=*),intent(in),optional :: help_text character(len=*),intent(in),optional :: version_text
Essentially a convenience routine for checking the status of a READ(7f) of the NAMELIST after calling commandline(3f). Basically, it lets you replace
if(ios.ne.0)then write(*,("ERROR:",i0,1x,a))ios, trim(message) call print_dictionary(OPTIONS:) stop 1 endifwith
call check_commandline(ios,message)or if the --usage switch is present does
if(usage) call print_dictionary(OPTIONS:) endifIf the optional text values are supplied they will be displayed by --help and --version command-line options, respectively.
IOS status from READ(7f) of NAMELIST after calling commandline(3f) MESSAGE message from READ(7f) of NAMELIST after calling commandline(3f) HELP_TEXT if present, will be displayed if program is called with --help switch, and then the program will terminate. VERSION_TEXT if present, will be displayed if program is called with --version switch, and then the program will terminate. If the first four characters of each line are "@(#)" this prefix will not be displayed. This if for support of the SCCS what(1) command. If you do not have the what(1) command on GNU/Linux and Unix platforms you can probably see how it can be used to place metadata in a binary by entering:
strings demo2|grep @(#)|tr > \n|sed -e s/ */ /g
Typical usage:
program demo_check_commandline use M_CLI, only : unnamed, commandline, check_commandline implicit none integer :: i character(len=255) :: message ! use for I/O error messages character(len=:),allocatable :: readme ! stores updated namelist character(len=:),allocatable :: version_text(:), help_text(:) integer :: iosreal :: x, y, z logical :: help, h equivalence (help,h) namelist /args/ x,y,z,help,h character(len=*),parameter :: cmd=-x 1 -y 2 -z 3 --help F -h F
! initialize namelist from string and then update from command line readme=commandline(cmd) !write(*,*)README=,readme read(readme,nml=args,iostat=ios,iomsg=message) version_text=[character(len=80) :: "version 1.0","author: me"] help_text=[character(len=80) :: & & "wish I put instructions","here", & & "I suppose?"] call check_commandline(ios,message,help_text,version_text)
! all done cracking the command line ! use the values in your program. write(*,nml=args) ! the optional unnamed values on the command line are ! accumulated in the character array "UNNAMED" if(size(unnamed).gt.0)then write(*,(a))files: write(*,(i6.6,3a))(i,[,unnamed(i),],i=1,size(unnamed)) endif end program demo_check_commandline
| Nemo Release 3.1 | check_commandline (3) | July 22, 2023 |


Please install the script using the link below:
[Install Script]
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A k-input binary truth table is a map from k input bits (binary digits, 0 [false] or 1 [true]) to 1 output bit. For example, the 2-input binary truth tables for the logical AND and XOR functions are:
| x | y | x AND y |
| 0 | 0 | 0 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
| x | y | x XOR y |
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |
How many 6-input binary truth tables, τ, satisfy the formula
for all 6-bit inputs (a, b, c, d, e, f)?


Second Post
Sat, Aug 1, 2020 | KhanShaheb34
Hi, there, this is the second post of me. This is only for testing.


{% extends "selectable_list.html" %} nav_bar.html takes one parameter 1) current_tab Allows the main profile header bar to change in html applicants_accepted.html takes a couple of parameters 1) found_positions All of the Applicants that meet the search criteria 2) needed skills This is all of the skills that applicants have applied for 3) projects All of the projects that meet the search criteria {% block title_tag %}Team Builder | Applications{% endblock %} {% block header %}
There are no applicants
{% endif %}


Welcome to Play Assembler »github.com/stijnsanders/plasm
In an effort to self-learn more about (virtual) machine code and compilers/parsers/lexers, I created this toy virtual CPU with its own assembler.
It's distinctly unlike anything I know exists, specifically to investigate what it takes to make something like this work, and have a free choice of what to put in and what to leave out; also to notice whether old ideas have already nested in my head and if tunnel vision would take hold.
The CPU is kept strictly simple: it has 5 general purpose registers:
A
,
B
,
C
,
D
,
E
; a stack pointer
S
; an instruction pointer
I
when executing is set to the address of the next instruction to run; and a boolean flag
F
.
The CPU has access to memory, which, for the purpose of this play environment, is based on a plain javascript array, so register and memory values are (signed!) integers of an unspecified bit width. Access memory by writing
[A]
to read or write memory at the address stored in register
A
. To mimic address modes, some arithmetic (e.g.
[A+D+2]
) is available but is limited to addition with registers
B
,
C
,
D
,
E
or constant offsets, since in an hypothetical effective CPU design this would have a negative impact on branch prediction.
There is also a constant
W
for the
machine word width byte count, but is currently
1
since addresses index into a plain array of integers.
Syntax
Write
A=B
to copy (assign) the value of
B
to
A
. Write
A+B
to calculate the sum of the value of
A
and
B
and store it in A
.
Also
A-B
subtraction,
A*B
multiplication,
A/B
division,
A%B
modulus,
A|B
or,
A&B
and,
A^B
xor,
A<<B
shift left,
A>>B
shift right.
Write
A?B
to compare the value of
A
to the value of
B
and have the flag
F
set accordingly.
Also
A<B
less than,
A>B
greater than,
A<=B
less then or equal,
A>=B
greater than or equal.
Preceed an instruction with
?
to have it only perform when the flag
F
is set.
Preceed an instruction with
!
to have it only perform when the flag
F
is
not set.
Preceed an instruction with
,
to have it behave
atomically with the preceding instruction. This currently has no effect since this virtual CPU won't be handling IRQ's, but in a theoretical physical design this is important to guarantee correct operation with conditional instructions. Instructions prefixed with
?
or
!
also behave atomically.
Combinations
Push? There is no push. Do
S-W,[S]=A
.
Pop? There is no pop. Do
A=[S],S+W
.
Jump? There is no jump. Manipulate the instruction pointer
I
to hold the address of the next instruction to perform. (Program loading supports labels prefixed with
:
, see below.)
Call? Do
S-W,[S]=I,[S]+2,I=A
(the
[S]+2
instruction is to have the return address point to past the
I=A
instruction, see below).
Ret? Do
S+W,I=[S-W]
(but not
I=[S],S+W
since
I=[S]
would jump and never reach
S+W
).
Operation
Enter instructions in the yellow box and press
Enter to have them executed to manipulate or inspect the processor state and memory.
Press
Program, then
Load to have a program processed for running.
Instructions are shown on the right, as if each one takes one index (
RISC-like) starting at 400. The binary encoding is not yet specified, but not relevant to this experiment anyway. It is loaded in separate memory (it's not
Von Neumann for now) only indexed by the instruction pointer. To use the same memory would require the binary encoding of the instructions, but that's perhaps for when I'm done playing with this.
Instructions are shown to the right in the blue box, click a line to toggle a breakpoint. Press
Step to perform the next instruction at
I
or
Run to start execution at
I
.
Machine interaction
Input/output is very limited for now, mainly to output numerical values to see how calculation programs perform.
Do
S-W,[S]=I,I=11
to output the value of
A
, 12 for
B
, etc.
Do
S-W,[S]=I,I=21
to output the value of
[A]
, 22 for
[B]
, etc.
Do
I=9
to halt execution cleanly. (Running past the end of the program would cause an
Instruction pointer past end of program error.)


Installation Let’s get started with the JAMStack by building our very own static site. We’ll be using Hugo, a static site generator (piece of software that turns the markdown into HTML to display), to create our site.
This guide assumes a basic knowledge of the command line and HTML. We’ll be interacting with our terminal for most of this tutorial, so you may want to read up on that if unfamiliar.
Generating the Skeleton Hugo requires a very specific structure for its generation. After installing Hugo, navigate to your desired directory and run hugo site new ./ in your command line. You’ll get something like:
. ├── archetypes │ └── default.md ├── config.toml ├── content ├── data ├── layouts ├── static └── themes as output.
While we’re here, I’m also going to introduce the hugo server command. Run this at any time to properly preview your site at localhost:1313 (default port is 1313, may change if you have preconfigured Hugo another way).
Adding a theme Hugo allows us to create our own themes, but that requires a knowledge of HTML and CSS and quite a bit of time. We’ll go over how to tweak the theme a bit later on, but let’s just use a premade one for now.
We’re going to be using the Anubis theme for our basic site today. This is a premade theme by Dmitry Kolosov - we’ll be editing it and configuring it throughout the rest of this tutorial.
Theme Configuration Remember that config.yaml file that we edited in step 2? We’ll be returning to that file to edit some features of the Anubis theme. Most themes have a GitHub repo that you can turn to for help with documentation and understanding what feature flags are available.
The first thing we’ll tweak is the title of our site. Open your config.yaml file, and change the:
title: "Anubis" line to:
Writing Content Every blog and website needs to have some content, so let’s cover how to do that.
Inside your Hugo folder, run hugo new posts/hello-world.md. This’ll create a new folder called posts in your content directory, and put a file called hello-world.md in it.
If you’re not familiar with Markdown, it’s a markup language that’s commonly used to write and create rich content, and it’s the language that Hugo uses.
Folder Structure Before we start finishing up our site, I’m going to go more into detail about each of the folders you’ll find, and what they do, so if you choose to edit your site more, you’ll understand how to do so. If you’re not interested in editing more, feel free to skip this page.
Content Let’s start with the content folder. You already know that this is where all your posts and markdown go, but you might not know that you can also put HTML in here.
Publishing You can’t just upload the Hugo files as they are to GitHub or Netlify for them to show up - we have to use something called a build process. This takes all the files and puts them through Hugo to churn out the HTML and CSS that we need.
This building is why we call Hugo a static site generator - it generates static sites which can go on a CDN instead of a more costly server.


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TypeScript and JavaScript, Ruby, Python, BASH. HTML5 + CSS3. ♡ React 🐧 Linux.
And I speak human too!
I'm motivated to leverage interactive web technologies to engineer interfaces which quickly convey complex information without overwhelming the user.
I've found React to be a perfect tool for creating seamless frontends for this communication.
I also have experience with Ruby and Ruby on Rails, and the Node/Express stack, as well as MongoDB and SQL.
Engineered React + TypeScript internal tooling, worked with ops teams and designers to establish requirements.
Assisted squad with backend development and overhaul/migration planning, using Python in Flask and FastAPI.
Worked with product & branding to re-engineer website for launch with deep-linking, device detects, and redirects.
Transitioned site from Gatsby to Next.js for server side rendering, improving SEO, link previews, and access for end-users without Javascript.
Consulted the video team to develop a web admin portal addressing their content management needs.
Prepared technical explanations, feedback, and feasibility assessments for the CEO and other executives.
Ensured the smooth filing and processing of a Law Firm specializing in Estate Planning. Utilized OCR and iterative scripting to assess and integrate our records, stretching back more than a hundred and fifty years. My responsibilities also included on-site technical support and guidance, as well as sorting and assimilating current documents.
Provided Operational and Technical Support, Office IT: data integrity & security, backup & web presence. Advised on business development and client relations, as well as outreach and branding.
Worked with disadvantaged middle school students at a charter school in Bedford-Stuyvesant, Brooklyn. Although our instructions were to prepare them for the New York State CORE test, once we got to the school we realized we would be required to engage in remedial instruction as well. Despite difficulty and uncertainty, our efforts were successful, and we were rewarded with improved scores for our students.
Tutored high schoolers to improve their scores on the SAT college admissions test. A job I held while a college student, it was important to me personally as a struggle which I had recently endured, but also as my way to bridge the gap between "town and gown". A couple of my students kept in touch for a few years afterwards and were happy with where they had landed for college.
Internship through CIEE study abroad in Buenos Aires, Argentina.
Coordinated network of hundreds of charities and their transparency documentation.
Responsibilities included digitalization and publication, as well as onsite technical support.
All business and correspondence conducted in Spanish.
From multimedia instruction and tutoring dead languages, to hosting, promoting, and supporting private shows, festivals, and weddings, my diverse array of former employments gives me a unique perspective and insight into any work environment.
When I manage to tear myself away from the keyboard,
I am most likely to be found in the forests, on the mountains, or at the beaches.
My other interests include music and its history, as well as production.
Gardening and birdwatching are more suburban pursuits, but I am lucky enough to find them here.
Cooking and Bicycling are still chores,
but I find enjoyment through focus and practice, sharpening them as skills.
Since moving back to San Francisco I have loved exploring its nooks and crannies, it seems every day I discover a new alley or hole-in-the-wall!


B.S. Business Administration | Quantitative Analysis | Minors: Mathematics, Spanish
Study Abroad: University of Valladolid, Spain
Exp. June 2021
Work Experience
General Atomics | San Diego, CA
Cost Structure Analyst Intern | June - Aug 2020
Performed obsolescence review to filter 30,000 items into 1,500 items to save on depreciation and labor cycles
Implemented new inventory system and updated $141,000 of internal sales orders, transfers and priorities
Verified $377,000,000 of forecast memos and updated monthly authorizations for expenditures to satisfy budgetary requirements
Finance and Administration Intern | June - Aug 2019
Created predictions to optimize spending on emergency parts for fleet of aircraft
Analyzed and compiled company data to maximize earnings and minimize spending to save over $300,000 and 1.2 Full Time Equivalent per year
Automated tracking systems and visuals to replace manual logging and implement dynamic data updates with pivot tables
Capital Spares Service Center Intern | June - Aug 2018
Analyzed and compiled part/item data using SAP, Windchill, BSIMS (internal inventory systems), and Excel
Developed tracking systems for all purchases, mean time between failure hours, and materials to create readiness rates for internal and external deployments
Research
Mathematics Summer Research Cal Poly The Frost Fund | June - Sept 2020
Analyzed nonlinear localized waveforms that are periodic in time
Researched the optimal granular crystal chain to maximize energy conversion
Utilized classical mechanics, linear algebra, ordinary differential equations and scientific computing
Leadership
Epic (Asian American Christian Fellowship) Small Group Leader Campus Crusades | 2018 - Present
Leading weekly community group and mentoring underclassmen
Intern Social Planning Committee Leader | General Atomics Internship Program | June - Aug 2020
Leading weekly community group and mentoring underclassmen
Awards and Certifications
IBM SQL for Data Science Course | Sept 2020
Introduction class to SQL
Analytics X Hackathon | 3rd Place | Sept 2019
Analyzed United States wildfire data using SAS (Statistical Analysis System)
Earned Value Management Systems Workshop | July 2019
Humphrey and Associates class on the basics of Earned Value Management and Project Scheduling
Engineer Manufacturing Liaison Training | July 2018
SAP for Project Managers
Technical and Language Skills
Programming
Python
R
MATLAB
SQL
HTML
Software
SAP
Microsoft Office Suite
Language
Conversational Spanish
Relavant Coursework
Business
Financial Accounting
Managerial Accounting
Corporate Finance
Law, Government, and Social Influences
Marketing
Mathematics & Statistics
Statistical Computing in R
Econometrics
Game Theory
Methods of Mathematical Proofs
Differential Equations
Vector Analysis
Numerical Analysis
Academic Recognitions
Nikken Watanabe Foundation Scholarship Recipient | 2017 - 2019


Updated April 27,2021
Mathematics is the science of numbers. To be precise, the Merriam-Webster dictionary defines mathematics as:
The science of numbers and their operations, interrelations, combinations, generalizations, abstractions and of space configurations and their structure, measurement, transformations and generalizations.
There are several different branches of mathematical science, which include algebra, geometry and calculus.
Mathematics is not an invention. Discoveries and laws of science are not considered inventions since inventions are material things and processes. However, there is a history of mathematics, a relationship between mathematics and inventions and mathematical instruments themselves are considered inventions.
According to the book "Mathematical Thought from Ancient to Modern Times," mathematics as an organized science did not exist until the classical Greek period from 600 to 300 B.C. There were, however, prior civilizations in which the beginnings or rudiments of mathematics were formed.
For example, when civilization began to trade, a need to count was created. When humans traded goods, they needed a way to count the goods and to calculate the cost of those goods. The very first device for counting numbers was, of course, the human hand and fingers represented quantities. And to count beyond ten fingers, mankind used natural markers, rocks or shells. From that point, tools such as counting boards and the abacus were invented.
Here's a quick tally of important developments introduced throughout the ages, beginning from A to Z.
The beautiful thing about learning is nobody can take it away from you.
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HOME VIDEO LINKS use a different browser if IE does not display the text in 3 columns on these pages!
by Dennis Baron, University of Illinois Page 1 of 3 NEXT PAGE
In April, 1987, an election judge from Missouri wrote to Ann Landers citing the following excerpt from the local Election Manual to support the argument that everyone's vote counts: “In 1776, one vote gave America the English language instead of German.” The statement is not strictly true, as many of Landers' more alert readers quickly pointed out. The vote in question did not take place. However, language became a political and an emotional issue as early as the 1750s, when British settlers in Pennsylvania began to fear and resent the fact that a third of their fellow Pennsylvanians were German speakers.
Since that time, American nativists have sought to eradicate minority languages and discourage bilingualism wherever it could be found: in Maine and Louisiana, California and New Mexico, Hawaii and Puerto Rico, as well as in Pennsylvania. Complaints about Germans as well as other non-English-speakers became all too common in the last quarter of the 19th century, and again during and after World War I, when the fear of immigrants and their languages prompted protective English-only legislation. Many Americans considered nonanglophones to be less than human: in 1904 a railroad president told a congressional hearing on the mistreatment of immigrant workers, “These workers don't suffer—they don't even speak English” (Shanahan, 1989.) Today as well there is opposition to nonanglophones and bilinguals—this time not Germans but Hispanic and Asian Americans. The result is the proposed English Language Amendment (ELA), a Constitutional amendment making English the official language of the United States.
Despite the latest rehearsal in Ann Landers' advice column of the myth that German had once come close to replacing English in the United States, Americans have never had a legally-established official language. The so-called German vote did not take place in 1776, and it had nothing to do with privileging German over English. The legend that it did, which has gone around since at least the 1850s, was spread initially by propagandists celebrating German contributions to American culture. It has since been taken over by those who claim that the English language in the United States is an endangered species. The story of the German Vote is occasionally trotted out by ELA supporters to demonstrate the power of ethnic groups to subvert national unity and to warn Americans that although the German threat to English has been defused, the Spanish one has not.
The events whose misinterpretation gave rise to the legend of the German vote occurred in 1795, though the date is frequently changed to the more patriotically crucial year of 1776. As is characteristic of such stories, what actually occurred is not entirely clear. What is clear is that Congress never considered replacing English with any other language or giving any other tongue equal status with English. In the 18th century there were rumors that a few Brit-bashing superpatriots campaigned to have the new nation drop English in favor of Hebrew, French, or Greek, considered in the late 18th century to be the languages of God, rationality, and democracy, respectively. But the desire to found a New Eden rather than a New Babel assured that the United States would be united both legally and socially under a single language, and that language would be English. Noah Webster championed a dialect-free Federal English based on his spelling book (and his own New England dialect). John Adams rightly predicted that English would become the next world language. And Roger Sherman of Connecticut is reported to have urged Americans to retain English and make the British speak Greek. (See Baron, 1982.) Despite the solid position of English both initially and throughout American history, the legend of the German vote persists.
The German VoteOn January 13, 1795, Congress considered a proposal, not to give German any official status, but merely to print the federal laws in German as well as English. During the debate, a motion to adjourn failed by one vote. The final vote rejecting the translation of federal laws, which took place one month later, is not recorded.
The translation proposal itself originated as a petition to Congress on March 20, 1794, from a group of Germans living in Augusta, Virginia. A House committee responding to that petition recommended publishing sets of the federal statutes in English and distributing them to the states, together with the publication of three thousand sets of laws in German, “for the accommodation of such German citizens of the United States, as do not understand the English language” (American State Papers ser. 10, v. 1:114). According to the succinct report in the Aurora Gazette, “A great variety of plans were proposed, but none that seemed to meet the general sense of the House” (22 January, 1795, p. 3).
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Contributor Covenant Code of Conduct¶ ↑
Our Pledge¶ ↑
In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
Our Standards¶ ↑
Examples of behavior that contributes to creating a positive environment include:
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Using welcoming and inclusive language
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Being respectful of differing viewpoints and experiences
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Gracefully accepting constructive criticism
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Focusing on what is best for the community
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Showing empathy towards other community members
Examples of unacceptable behavior by participants include:
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The use of sexualized language or imagery and unwelcome sexual attention or advances
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Trolling, insulting/derogatory comments, and personal or political attacks
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Public or private harassment
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Publishing others' private information, such as a physical or electronic address, without explicit permission
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Other conduct which could reasonably be considered inappropriate in a professional setting
Our Responsibilities¶ ↑
Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
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Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at<EMAIL_ADDRESS>All complaints will be reviewed and investigated and will result in a response that is deemed necessary and appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
Attribution¶ ↑
This Code of Conduct is adapted from the Contributor Covenant, version 1.4, available at contributor-covenant.org/version/1/4


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The following is a list of compile dependencies for this project. These dependencies are required to compile and run the application:
| GroupId | ArtifactId | Version | Type | Licenses |
|---|---|---|---|---|
| com.github.siom79.japicmp | japicmp | 0.17.2 | jar | Apache License, Version 2.0 |
| org.apache.ant | ant | 1.10.12 | jar | The Apache Software License, Version 2.0 |
The following is a list of test dependencies for this project. These dependencies are only required to compile and run unit tests for the application:
| GroupId | ArtifactId | Version | Type | Licenses |
|---|---|---|---|---|
| junit | junit | 4.13.1 | jar | Eclipse Public License 1.0 |
| org.apache.ant | ant-testutil | 1.10.12 | jar | The Apache Software License, Version 2.0 |
| org.mockito | mockito-core | 4.3.1 | jar | The MIT License |
The following is a list of transitive dependencies for this project. Transitive dependencies are the dependencies of the project dependencies.
The following is a list of compile dependencies for this project. These dependencies are required to compile and run the application:
The following is a list of test dependencies for this project. These dependencies are only required to compile and run unit tests for the application:
| GroupId | ArtifactId | Version | Type | Licenses |
|---|---|---|---|---|
| net.bytebuddy | byte-buddy | 1.12.7 | jar | Apache License, Version 2.0 |
| net.bytebuddy | byte-buddy-agent | 1.12.7 | jar | Apache License, Version 2.0 |
| org.hamcrest | hamcrest-core | 1.3 | jar | New BSD License |
| org.objenesis | objenesis | 3.2 | jar | Apache License, Version 2.0 |
Apache License 2.0: Javassist
Apache 2.0: error-prone annotations
EDL 1.0: JavaBeans Activation Framework API jar
Eclipse Public License 1.0: JUnit
The MIT License: Checker Qual, mockito-core
Apache License, Version 2.0: Byte Buddy (without dependencies), Byte Buddy agent, Guava: Google Core Libraries for Java, Objenesis, fastinfoset, japicmp, japicmp-ant-task
LGPL 2.1: Javassist
Eclipse Distribution License - v 1.0: Extended StAX API, JAXB Runtime, TXW2 Runtime, fastinfoset, istack common utility code runtime, jakarta.xml.bind-api
MPL 1.1: Javassist
New BSD License: Hamcrest Core
The Apache Software License, Version 2.0: Apache Ant Core, Apache Ant Launcher, Apache Ant Test Utilities, FindBugs-jsr305, Guava InternalFutureFailureAccess and InternalFutures, Guava ListenableFuture only, J2ObjC Annotations
| Filename | Size | Entries | Classes | Packages | Java Version | Debug Information |
|---|---|---|---|---|---|---|
| japicmp-0.17.2.jar | 285.8 kB | 221 | 190 | 19 | 1.8 | Yes |
| jsr305-3.0.2.jar | 19.9 kB | 46 | 35 | 3 | 1.5 | Yes |
| error_prone_annotations-2.3.4.jar | 13.9 kB | 34 | 22 | 2 | 1.7 | No |
| failureaccess-1.0.1.jar | 4.6 kB | 15 | 2 | 1 | 1.7 | Yes |
| guava-30.1-jre.jar | 2.9 MB | 2059 | 2029 | 18 | 1.8 | Yes |
| listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar | 2.2 kB | 7 | 0 | 0 | - | No |
| j2objc-annotations-1.3.jar | 8.8 kB | 23 | 12 | 1 | 1.5 | Yes |
| istack-commons-runtime-3.0.8.jar | 27.2 kB | 37 | 22 | 4 | - | Yes |
| FastInfoset-1.2.16.jar | 317.2 kB | 185 | 149 | 18 | - | Yes |
| jakarta.activation-api-1.2.1.jar | 44.4 kB | 42 | 31 | 1 | 1.5 | Yes |
| jakarta.xml.bind-api-2.3.2.jar | 115.5 kB | 137 | 111 | 7 | - | Yes |
| junit-4.13.1.jar | 382.7 kB | 387 | 348 | 32 | 1.5 | Yes |
| byte-buddy-1.12.7.jar | 3.8 MB | 2696 | 2635 | 39 | - | Yes |
| byte-buddy-agent-1.12.7.jar | 256.9 kB | 89 | 69 | 3 | - | Yes |
| ant-1.10.12.jar | 2.3 MB | 1246 | 1162 | 62 | 1.8 | Yes |
| ant-launcher-1.10.12.jar | 18.7 kB | 14 | 4 | 1 | 1.8 | Yes |
| ant-testutil-1.10.12.jar | 28.5 kB | 27 | 13 | 4 | 1.8 | Yes |
| checker-qual-3.5.0.jar | 214.4 kB | 382 | 321 | 33 | 1.8 | Yes |
| jaxb-runtime-2.3.2.jar | 1 MB | 804 | 643 | 26 | - | Yes |
| txw2-2.3.2.jar | 72.1 kB | 69 | 54 | 4 | - | Yes |
| hamcrest-core-1.3.jar | 45 kB | 52 | 45 | 3 | 1.5 | Yes |
| javassist-3.29.1-GA.jar | 794.1 kB | 450 | 426 | 17 | 1.8 | Yes |
| stax-ex-1.8.1.jar | 38.1 kB | 38 | 25 | 3 | - | Yes |
| mockito-core-4.3.1.jar | 671.4 kB | 656 | 584 | 64 | 1.8 | Yes |
| objenesis-3.2.jar | 49.4 kB | 59 | 43 | 10 | 1.8 | Yes |
| Total | Size | Entries | Classes | Packages | Java Version | Debug Information |
| 25 | 13.4 MB | 9775 | 8975 | 375 | 1.8 | 23 |
| compile: 18 | compile: 8.1 MB | compile: 5809 | compile: 5238 | compile: 220 | - | compile: 16 |
| test: 7 | test: 5.3 MB | test: 3966 | test: 3737 | test: 155 | - | test: 7 |


ng-mentions with drop downs styled using Bootstrap.
Simple Angular mentions inspired by Ment.io & Angular Mentions.
Provides auto-complete suggestions for @mentions in text input fields, text areas, and content editable fields (content editable support is currently limited).
This is still a work in progress. Expect breaking changes, although I will try to minimize them for the common use cases.


This specification describes support for real-time 3D hand motion tracking by using depth camera.
This document was published by the Crosswalk Project as an API Draft. If you wish to make comments regarding this document, please send them to<EMAIL_ADDRESS>All comments are welcome.
The APIs described in this document are exposed through
realsense.HandTracking
module.
The hand tracking capability can be accessed via HandModule
interface. It allows to control, configure the hand tracking and retrieve
the hand information.
The tracked hand provides full 3D skeleton information including
all 22 joints and fingers data as following diagram illustrated.
The tracked hand model can be accessed via Hand
interface.
HandModule
The HandModule
is the main interface for
hand tracking.
The init()
method initializes the hand tracking.
This method returns a promise.
The promise will be fulfilled if there are no errors.
The promise will be rejected with the DOMException
object defined in [[!WEBIDL]] if there is a failure.
The start()
method starts the hand tracking.
This method returns a promise.
The promise will be fulfilled with the image size if there are no errors.
The promise will be rejected with the DOMException
object if there is a failure.
The stop()
method stops the hand tracking.
This method returns a promise.
The promise will be fulfilled if there are no errors.
The promise will be rejected with the DOMException
object if there is a failure.
The track()
method tracks the hands.
This method returns a promise.
The promise will be fulfilled with an array of tracked hands
if there are no errors.
The promise will be rejected with the DOMException
object if there is a failure.
The getDepthImage()
method gets the latest processed depth image.
This method returns a promise.
The promise will be fulfilled with the processed depth image if there are no errors.
The promise will be rejected with the DOMException
object if there is a failure.
Hand
The Hand
is the interface of the tracked hand.
The unique ID of given tracked hand.
The time-stamp in which the collection of the hand data was completed.
true
if there is a valid hand calibration, otherwise false
.
The side of the body to which the hand belongs (when known).
The location and dimensions of the tracked hand, represented by a 2D bounding box (defined in pixels).
The 2D center of mass of the hand in image space (in pixels).
The 3D center of mass of the hand in world space (in meters).
The quaternion representing the global 3D orientation of the palm.
The palm radius in image space (number of pixels).
The palm radius in world space (meters).
The extremity points of tracked hand.
The finger data of tracked hand.
The joints data of tracked hand.
The tracking status.
The degree of openness of the hand.
The normalized joints data of tracked hand.
The getSegmentationImage()
method retrieves the
2D image mask of the tracked hand.
This method returns a promise.
The promise will be fulfilled with the mask image if there are no errors.
The promise will be rejected with the DOMException
object defined in [[!WEBIDL]] if there is a failure.
The getContours()
method retrieves the contours of
the tracked hand.
This method returns a promise.
The promise will be fulfilled with the array of contours if there are no errors.
The promise will be rejected with the DOMException
object defined in [[!WEBIDL]] if there is a failure.
Image
Point2D
The x coordinate of the point.
The y coordinate of the point.
Point3D
The x coordinate of the point.
The y coordinate of the point.
The z coordinate of the point.
Point4D
The x coordinate of the point.
The y coordinate of the point.
The z coordinate of the point.
The w coordinate of the point.
Rect
The horizontal coordinate of the top left pixel of the rectangle.
The vertical coordinate of the top left pixel of the rectangle.
The rectangle width in pixels.
The rectangle height in pixels.
ImageSize
The rectangle width in pixels.
The rectangle height in pixels.
ExtremityData
The 3D world coordinates of the extremity point.
The 2D image coordinates of the extremity point.
ExtremityDataPoints
The closest point to the camera in the tracked hand.
The left-most point of the tracked hand.
The right-most point of the tracked hand.
The top-most point of the tracked hand.
The bottom-most point of the tracked hand.
The center point of the tracked hand.
FingerData
The degree of "foldedness" of the tracked finger, ranging from 0 (least folded / straight) to 100 (most folded).
The radius of the tracked fingertip. The default value is 0.017m while the hand is not calibrated.
Fingers
The finger data of thumb finger.
The finger data of index finger.
The finger data of middle finger.
The finger data of ring finger.
The finger data of pinky finger.
JointData
RESERVED: for future confidence score feature
The geometric position in 3D world coordinates, in meters.
The geometric position in 2D image coordinates, in pixels. (Note: the Z coordinate is the point's depth in millimeters.)
A quaternion representing the local 3D orientation of the joint, relative to its parent joint.
A quaternion representing the global 3D orientation, relative to the "world" y axis.
The speed of the joints in 3D world coordinates (X speed, Y speed, Z speed, in meters/second).
FingerJoints
The joint data of finger base.
The data of finger joint1.
The data of finger joint2;
The joint data of finger tip.
Joints
The center of wrist.
The center of the palm.
The joints of thumb finger.
The joints of index finger.
The joints of middle finger.
The joints of ring finger.
The joints of pinky finger.
PixelFormat
The depth map data in 16-bit unsigned integer. The values indicate the distance from an object to the camera's XY plane or the Cartesian depth.The value precision is in millimeters.
The 8-bit gray format.
BodySide
The side was not determined.
Left side of the body.
Right side of the body.
TrackingStatus
Optimal tracking conditions.
The hand is outside the field of view (in the x/y axis).
The hand is outside the depth range.
The hand is moving at high speed.
The hand fingers pointing the camera.
var handModule; var stopped = false; var startButton = document.getElementById('start'); var stopButton = document.getElementById('stop'); function handleError(error) { // The error is an instance of DOMException. console.log(error.name + ': ' + error.message); } function trackHands() { handModule.track().then( function(hands) { // The hands argument is an array ofHand
objects. // ... process hands ... // Continue to track hands. if (!stopped) trackHands(); }, handleError ); } function main() { try { // Create an instance ofHandModule
interface. // It is the main interface of hand tracking capability. handModule = new realsense.Hand.HandModule(); } catch (e) { console.log(e); } handModule.init().then( function() { console.log('Succeed to init.'); startButton.disabled = false; stopButton.disabled = false; }, handleError ); startButton.onclick = function(e) { handModule.start().then( function(imageSize) { // The imageSize argument is anImageSize
object. console.log('Succeed to start.') stopped = false; trackHands(); }, handleError ); }; stopButton.onclick = function(e) { stopped = true; handModule.stop().then( function() { console.log('Succeed to stop.'); }, handleError ); }; }


Preparation time
1-2 hours
Cooking time
30 mins to 1 hour
Serves
Serves 4
Treat yourself with this decedent dinner party recipe of tender beef fillet enclosed in mushrooms and buttery puff pastry.
Preheat the oven to 180C/350F/Gas 4.
Season the beef with the thyme, sea salt and pepper and rest for 30 minutes.
Heat a pan and sear each side of the beef until golden brown.
Allow to cool to room temperature.
For the Duxelles, sweat the butter, garlic and mushrooms in a pan over a low heat until all the moisture evaporates.
Add the truffle oil and parsley, and season to taste.
Remove from the heat and allow to cool to room temperature.
Smear the beef with an even coating of English mustard.
Lightly dust a sheet of baking paper with flour.
Roll the pastry so it is a little wider than the beef, and the beef can be completely rolled in pastry.
Place the pastry so the longest half is facing you.
Spread the Duxelle mixture evenly over the half of the pastry closest to you.
Place the beef on top of the mushroom mix.
Roll the beef up in the pastry, leaving a slight overlap of 3cm/1¼in. Brush this with beaten egg and seal.
Trim the ends of the pastry so they are flush with the beef.
Cut a sheet of baking paper to the size of the beef Wellington.
Place the beef Wellington on the paper, lightly brush the top with melted butter and refrigerate for 30 minutes.
Put the beef Wellington in the oven and cook for 25 minutes or until dark golden in colour.
Serve with steamed spinach or roast vegetables of your choice.


{% extends "base.html" %} {% block title %} Beranda | Satu Data Indonesia {% endblock %} {% block bodyclass %}home{% endblock %} {% block content %}
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| Ingredient | For 1 9 inch pie |
|---|---|
| pureed pumpkin (canned or fresh baked) | 15 oz |
| cocunut milk | 200 ml |
| ground cinnamon | 2 tsp |
| ground ginger | 1/2 tsp |
| ground nutmeg | 1/2 tsp |
| ground cloves | 1/4 tsp |
| ground cardamon (optional, not everyone likes this) | 1/8 tsp |
| slightly beaten eggs | 2 |
| Maple Syrup or Agave | 1/3 cup |
| Ingredient | For 1 9 inch pie |
|---|---|
| pureed pumpkin (canned?) | 15 oz |
| sweetened condensed milk | 14 oz |
| ground cinnamon | 1 tsp |
| ground nutmeg | 1/2 tsp |
| ground ginger | 1/4 tsp |
| ground cloves | 1/4 tsp |
| slightly beaten eggs | 2 |
| 9 inch deep dish pie shell | 1 |


Introduction: Jennifer Lopez’s real name is Jennifer Lynn Lopez. Jennifer Lynn Lopez is a famous American actress, singer, dancer, fashion designer, producer, and businesswoman. Jennifer Lopez is one of Hollywood’s driving women who’s likewise manufactured an effective popular and move music profession. Jennifer Lopez is famous for her beauty, her voice, and the amazing style of acting and dance. She is one of the highest-paid American actress and model. Early life: Jennifer Lynn Lopez was conceived on July 24, 1969, in The Bronx ward of New York City, to Puerto Rican guardians Guadalupe Rodríguez and David López. She has an older sister Leslie, and a younger sister Lynda. At five years old, Lopez started taking singing and moving exercises. Jennifer Lopez spent her entire academic career in Catholic schools, finishing at Preston High School. Her parents focused on the significance of a hard-working attitude and having the option to communicate in English. They urged their three little girls to give exhibitions at home—singing and moving before one another and their companions with the goal that they would remain “in the clear”. Early Career: In 1986 Jennifer Lopez auditioned in a low budget film and was cast in My Little Girl. This film was directed by Connie Kaiserman. After that Jennifer Lopez performed in a regional production of the musicals Jesus Christ Superstar and Oklahoma!. From that point, she was employed for the melody in a Golden Musicals of Broadway, which visited Europe for five months. In 1991 Jennifer Lopez was chosen as a reinforcement artist in New Kids on the Block and performed with them at the eighteenth Annual American Music Awards. After that she Jennifer Lopez picked up her first normal activity as a Fly Girl artist on the television program In Living Color. Professional Career: Jennifer Lopez got her first expert acting gig in the direct-to-video dramatization movie Lost in the Wild in 1993. Later in 1993, Lopez signed a deal with CBS to co-star in the television series Second Chances. In 1995, Jennifer Lopez play her first major big-screen role in the drama film My Family. This film was directed by Gregory Nava. After that, in 1996, Jennifer Lopez played a supporting role in the comedy-drama film Jack. In February 1997, Lopez featured nearby Jack Nicholson and Stephen Dorff in the neo-noir spine-chiller Blood and Wine. In June 1998, Lopez featured inverse George Clooney in Out of Sight, Steven Soderbergh’s adjustment of Elmore Leonard’s tale of a similar name. In 1999, Jennifer Lopez released her single If You Had My Love. Later in June 1999, Jennifer Lopez released her album On the 6. In 2001, Jennifer Lopez released her second studio album J.Lo. The same year Jennifer Lopez appeared in the romantic drama film Angel Eyes. A remix collection qualified J for the L–O! The Remixes was accordingly discharged on February 5, 2002. It appeared at the highest point of the Billboard 200, making it the first remix collection to do as such. Later in 2002, Jennifer Lopez released her third studio album This Is Me… Then. She dedicates this to his fiance Ben Affleck. In August 2003, Jennifer Lopez appeared in the comedy film Gigli. This film was highly unsuccessful. This film was a box office bomb and is considered one of the worst films. In 2004, Jennifer Lopez appeared in the film Jersey Girl and the drama film Shall We Dance?. After one year Lopez released her 4th studio album Rebirth in 2005. As indicated by Lopez, Rebirth “came about because I was on such an exciting ride, that was my profession from my first collection to my last collection, and I did a lot of films extend in the middle. I at long last took some time only for myself, and [when] I returned, this was the principal venture I did. I sensed that it was a fresh start for me, as was I, as it were, renewed. Jennifer Lopez released her 5th studio album and first Spanish album Como Ama una Mujer in 2007. The same year Jennifer Lopez appeared in the biographical film El Cantante. After this, she released her 6th studio album Brave. In 2009, Jennifer Lopez released two songs for her 7th studio album Love?. Later in 2011, she released her 7th studio album Love?. In 2013, Jennifer Lopez appeared in the crime thriller film Parker. In this film, she played the role of Leslie. In this film, her performance was earned positive views. Later in 2014, Jennifer Lopez released her 8th studio album A.K.A. The collection created three singles: “I Luh Ya Papi”, which highlights French Montana, “First Love”, and “Booty. January 2015 saw the arrival of The Boy Next Door, a suggestive spine chiller that Lopez both co-delivered and featured in as a secondary teacher who gets associated with an understudy, which in the long run prompts his risky fixation on her. In 2016, Jennifer Lopez plays a role in the crime drama Shades of Blue. This drama series was aired on NBC. Jennifer Lopez’s performance received positive views. Later in December 2018, Jennifer Lopez appeared in a comedy film Second Act. This film was directed by Peter Segal. She also produced and record single for this film. Jennifer Lopez next play role in the film Hustlers. This film released in 2019. Personal Life: Sean Puffy Combs: Jennifer Lopez briefly married a model-actor Ojani Noa in 1997. After that, she had a relationship with Sean Puffy Combs. Cris Judd: After this breakup, Jennifer Lopez started dating with Cris Judd. Cris Judd is a dancer. He is appeared in her hit single Love Don’t Cost a Thing. The couple married in September 2001 and after nine months, they have been separated. Ben Affleck: In 2002, Jennifer Lopez started dating actor Ben Affleck. They announced their engagement in November. This realization broke up in 2004. Marc Anthony: In June 2004, Jennifer Lopez married singer, Marc Anthony. Jennifer Lopez gave birth two twins name Maximillian and Emme in February 2008. They announced their split in 2011. The couple divorced on June 16, 2014. Casper Smart: Jennifer Lopez remains concerning Casper Smart a backup dancer from 2011 to 2016. After that in 2017, Jennifer starts dating Alex Rodriguez. Alex Rodriguez is a baseball player. In 2019 the couple announced their engagement. Discography: • On the 6 (19990 • J.Lo (2001) • This Is Me… Then (2002) • Rebirth (2005) • Como Ama una Mujer (2007) • Brave (2007) • Love? (2011) • A.K.A. (2014) Television: • In Living Color (1991-1993) • Second Chances (1993-1994) • Hotel Malibu (1994) • South Central (1994) • Saturday Night Live (2000-2019) • Will & Grace (2004-2018) • South Beach (2006) • Dance Life (2007) • Jennifer Lopez presents: Como Ama una Mujer (2007) • How I Met Your Mother (2010) • South Beach Tow (2011-2014) • Q’Viva! The Chosen (2012) • The Fosters (2013-2018) • 43rd Annual American Music Awards (2015) • Shades of Blue (2016-2018) • World of Dance (2017) • One Voice Somos Live: A Concert for Disaster Relief (2017) • Good Trouble (2019) • One World: Together at Home (2020) Filmography: • My Little Girl (1986) • Nurses on the Line: The Crash of Flight 7 (1993) • My Family (1995) • Money Train (1995) • Jack (1996) • Blood and Wine (1997) • Selena (1997) • Anaconda (1997) • U Turn (1997) • Out of Sight (1998) • Antz (1998) • The Cell (2000) • The Wedding Planer (2001) • Angel Eyes (2001) • Enough (2002) • Maid in Manhattan (2002) • Gigli (2003) • Jersey Girl (2004) • Shall We Dance? (2004) • Monster in Law (2005) • An Unfinished Life (2005) • Bordertown (2006) • El Cantante (2006) • Manufacturing Dissent (2007) • Feel the Noise (2007) • The Back up Plan (2010) • Sellebrity (2012) • What to Expect When You’re Expecting (2012) • Ice Age: Continental Drift (2012) • Parker (2013) • Jennifer Lopez: Dance Again (2014) • The Boy Next Door (2015) • Home (2015) • The Latin Explosion: A New America (2015) • Ice Age: Collision Course (2016) • Second Act (2018) • Hustlers (2019) • Wonder Boy, Oliver Rousteing, ne’ sous X (2019)