Company profile - Canadian Company Capabilities
Third-Party Information Liability Disclaimer
Some of the information on this Web page has been provided by external sources. The Government of Canada is not responsible for the accuracy, reliability or currency of the information supplied by external sources. Users wishing to rely upon this information should consult directly with the source of the information. Content provided by external sources is not subject to official languages, privacy and accessibility requirements.
Voxel Factory inc.
Mailing Address:
402-2250 de Maisonneuve Blvd EMONTRÉAL, Quebec
H2K 2E5
Location Address:
402-2250 de Maisonneuve Blvd EMONTRÉAL, Quebec
H2K 2E5
Tel.:<PHONE_NUMBER>
Fax:
Company Profile
Voxel Factory helps institutions, businesses and individuals from the province of Quebec and the rest of Canada to choose the 3D printer which suits their specific needs. At Voxel Factory, Makers, Artists and Engineers will find the supplies they need for all their projects. We carry the BCN3D Technologies, Airwolf3D, Prusa Research, Tinkerine, ColorFabb, Taulman3D and NinjaFlex brands which are the highest quality products sought after by the most passionate users. Our advisory services, after-sales support in English and French plus our repair services for 3D printers, are key to our success. We pride ourselves on customer satisfaction and have an extensive and loyal customer base.
Full profile
Full profile
Contact information
Company description
Product / Service / Licensing
This is the perfect 3D printer for school and library, it is fully assembled and ready for action right out of the box. No matter what you plan to print, the DittoPro will be up to the task.
Dimensions & Weight
External dimensions: 37 x 39 x 43.6 cm (14.6 x 15.4 x 17.2 in)
Weight: 10 kg (22.0 lb)
Printing
Technology: Fused Filament Fabrication (FFF)
Build dimensions: 22 x 16.5 x 22 cm (8.7 x 6.5 x 8.7 in)
Build volume: 7986 cm3 (487 in3)
Layer height: 50-300 microns (0.05-0.3 mm)
Filament diameter: 1.75mm
Nozzle diameter: 0.35mm
Original Prusa design i3 MK2 kit, by Josef Prusa, the renown RepRap 3D printer developer from the Czech Republic. This DIY printer kit can use most of the available filament materials.
Easily up-gradable, making it the perfect printer for the "Makers", who love to modify and customize their own machine.
All parts of this 3D printer are Open Source and are part of the RepRap project.
Upgrade From Prusa i3 Plus
New HeatBed MK42 (31% larger printing zone)
Hassle free PEI print surface
Integrated leadscrew Z axis
Full mesh bed auto leveling
Improved construction
Faster printing and more materials with E3D V6Full
Improved firmware and printer self test
Slicer support including Windows 10
Dimensions & Weight
External dimensions: 42 x 42 x 38 cm (16.5 x 16.5 x 15 inches)
Weight: 6.5 kg (14 lbs)
Printing
Technology: Fused Filament Fabrication (FFF)
Build dimensions: 25 x 21 x 20 cm (9.84 x 8.3 x 8 in)
Build volume: 10 500 cm3 (653 in3)
Layer height: 50-250 microns (0.05-0.25 mm)
Filament diameter: 1.75 mm
Nozzle diameter: 0.4 mm
PEI print surface : no glass, no glue, no ABS juice
It is characterized by its IDEX (Independent Dual Extruder) system, which allows you to print without geometric limitations. In addition, the IDEX offers you the possibility of combining existing printing techniques such as : multi-materials, multi-colors and support printing.
Dimensions & Weight
External dimensions: 46.5 x 44 x 68 cm (18.1 x 17.3 x 26.8 in)
Weight: 21 kg (46.0 lb)
Printing
Technology: Fused Filament Fabrication (FFF)
Build dimensions: 21 x 29.7 x 21 cm (8.3 x 11.4 x 8.3 in)
Build volume: 1 3097.7 cm3 (799 in3)
Layer height: 50-300 microns (0.05-0.3 mm)
Filament diameter: 2.85mm
Nozzle diameter: 0.4mm - 0.6mm
Perfect for engineering
Dimensions & Weight
External dimensions: 58.4 x 48.2 x 48.2cm (23 x 19 x 19 in)
Weight:
Printing
Technologie: Fused Filament Fabrication (FFF)
Build dimensions: 31.7 x 20.3 x 25.4 cm (12.5 x 8 x 10 in)
Build volume: 16387 cm3 (1000 in3)
Layer resolution: 40-300 microns (0.04-0.3 mm)
Filament diameter: 2.85 to 2.90 mm
Nozzle diameter: 0.50mm
Available diameters :1.75mm and 2.85mm
Quantity: 750 gr.
Density: 1.210-1.430 g·cm-3
Colors:
Standard Black
Standard White
Blueish White
Blue Grey
Shining Silver
Sky Blue
Ultra Marine Blue
Lila
Magenta
Traffic Red
Dutch Orange
Signal Yellow
Olympic Gold
Intense Green
Leaf Green
Light Brown
Available filaments :
Glowfill
Bronzefill
Brassfill
Copperfill
Corkfill
Bamboofill
Woodfill
XT_CF20
XT_Clear
XT_Black
XT_White
Quantity : 750gr.
Available colors :
nGen Clear
nGen White
nGen Black
nGen Red
nGen Dark Blue
nGen Silver Metallic
Available filaments :
Taulman3D Nylon 230
Taulman3D Nylon 645
Taulman3D Nylon 680 FDA
Taulman3D Bridge Nylon
Taulman3D Alloy 910
Taulman3D PCTPE
Taulman3D T-Glase Red Star
Taulman3D T-Glase Orion Blue
Taulman3D T-Glase Clear
Taulman3D T-Glase Green Lens (only in 2.85mm)
Taulman3D Nylon 618 (only in 2.85mm)
Helps to make the piece stick to print bed to avoid warping while printing.
Does not work with Nylon
400ml
The 410 stainless steel nozzle can handle the most abrasive materials like Carbon Fiber filled filaments in addition to being easy and affordable to replace when needed.
The Dyze Design extruder is a Canadian made, high quality and all metal extruder that is able to print any kind of materials. So far, we've personally tried using the very flexible NinjaFlex and it works like a charm.
The DyzeXtruder is 100% metal, groove mount and bowden tube ready.
HotEnd:
FULL METAL HOTEND
1x 0.4 mm 410 stainless steel nozzle
Hard Titanium thermal break
Compatible with every 1.75mm filaments
Up to 500°C (24V, enclosed print area)
Extruder:
Fully assembled all metal extruder
Compatible with every 1.75mm filaments
Adjustable width to connect the most known RepRap hotends
Available in 12 volts and 24 volts.
Market profile
Industry sector market interests:
- Consumer Products
- Wholesale/Retail
Geographic markets:
Export experience:
- United States
Third-Party Information Liability Disclaimer
Some of the information on this Web page has been provided by external sources. The Government of Canada is not responsible for the accuracy, reliability or currency of the information supplied by external sources. Users wishing to rely upon this information should consult directly with the source of the information. Content provided by external sources is not subject to official languages, privacy and accessibility requirements.
Contacts
Contact information
Description
Company description
Products, services and licensing
Product / Service / Licensing
This is the perfect 3D printer for school and library, it is fully assembled and ready for action right out of the box. No matter what you plan to print, the DittoPro will be up to the task.
Dimensions & Weight
External dimensions: 37 x 39 x 43.6 cm (14.6 x 15.4 x 17.2 in)
Weight: 10 kg (22.0 lb)
Printing
Technology: Fused Filament Fabrication (FFF)
Build dimensions: 22 x 16.5 x 22 cm (8.7 x 6.5 x 8.7 in)
Build volume: 7986 cm3 (487 in3)
Layer height: 50-300 microns (0.05-0.3 mm)
Filament diameter: 1.75mm
Nozzle diameter: 0.35mm
Original Prusa design i3 MK2 kit, by Josef Prusa, the renown RepRap 3D printer developer from the Czech Republic. This DIY printer kit can use most of the available filament materials.
Easily up-gradable, making it the perfect printer for the "Makers", who love to modify and customize their own machine.
All parts of this 3D printer are Open Source and are part of the RepRap project.
Upgrade From Prusa i3 Plus
New HeatBed MK42 (31% larger printing zone)
Hassle free PEI print surface
Integrated leadscrew Z axis
Full mesh bed auto leveling
Improved construction
Faster printing and more materials with E3D V6Full
Improved firmware and printer self test
Slicer support including Windows 10
Dimensions & Weight
External dimensions: 42 x 42 x 38 cm (16.5 x 16.5 x 15 inches)
Weight: 6.5 kg (14 lbs)
Printing
Technology: Fused Filament Fabrication (FFF)
Build dimensions: 25 x 21 x 20 cm (9.84 x 8.3 x 8 in)
Build volume: 10 500 cm3 (653 in3)
Layer height: 50-250 microns (0.05-0.25 mm)
Filament diameter: 1.75 mm
Nozzle diameter: 0.4 mm
PEI print surface : no glass, no glue, no ABS juice
It is characterized by its IDEX (Independent Dual Extruder) system, which allows you to print without geometric limitations. In addition, the IDEX offers you the possibility of combining existing printing techniques such as : multi-materials, multi-colors and support printing.
Dimensions & Weight
External dimensions: 46.5 x 44 x 68 cm (18.1 x 17.3 x 26.8 in)
Weight: 21 kg (46.0 lb)
Printing
Technology: Fused Filament Fabrication (FFF)
Build dimensions: 21 x 29.7 x 21 cm (8.3 x 11.4 x 8.3 in)
Build volume: 1 3097.7 cm3 (799 in3)
Layer height: 50-300 microns (0.05-0.3 mm)
Filament diameter: 2.85mm
Nozzle diameter: 0.4mm - 0.6mm
Perfect for engineering
Dimensions & Weight
External dimensions: 58.4 x 48.2 x 48.2cm (23 x 19 x 19 in)
Weight:
Printing
Technologie: Fused Filament Fabrication (FFF)
Build dimensions: 31.7 x 20.3 x 25.4 cm (12.5 x 8 x 10 in)
Build volume: 16387 cm3 (1000 in3)
Layer resolution: 40-300 microns (0.04-0.3 mm)
Filament diameter: 2.85 to 2.90 mm
Nozzle diameter: 0.50mm
Available diameters :1.75mm and 2.85mm
Quantity: 750 gr.
Density: 1.210-1.430 g·cm-3
Colors:
Standard Black
Standard White
Blueish White
Blue Grey
Shining Silver
Sky Blue
Ultra Marine Blue
Lila
Magenta
Traffic Red
Dutch Orange
Signal Yellow
Olympic Gold
Intense Green
Leaf Green
Light Brown
Available filaments :
Glowfill
Bronzefill
Brassfill
Copperfill
Corkfill
Bamboofill
Woodfill
XT_CF20
XT_Clear
XT_Black
XT_White
Quantity : 750gr.
Available colors :
nGen Clear
nGen White
nGen Black
nGen Red
nGen Dark Blue
nGen Silver Metallic
Available filaments :
Taulman3D Nylon 230
Taulman3D Nylon 645
Taulman3D Nylon 680 FDA
Taulman3D Bridge Nylon
Taulman3D Alloy 910
Taulman3D PCTPE
Taulman3D T-Glase Red Star
Taulman3D T-Glase Orion Blue
Taulman3D T-Glase Clear
Taulman3D T-Glase Green Lens (only in 2.85mm)
Taulman3D Nylon 618 (only in 2.85mm)
Helps to make the piece stick to print bed to avoid warping while printing.
Does not work with Nylon
400ml
The 410 stainless steel nozzle can handle the most abrasive materials like Carbon Fiber filled filaments in addition to being easy and affordable to replace when needed.
The Dyze Design extruder is a Canadian made, high quality and all metal extruder that is able to print any kind of materials. So far, we've personally tried using the very flexible NinjaFlex and it works like a charm.
The DyzeXtruder is 100% metal, groove mount and bowden tube ready.
HotEnd:
FULL METAL HOTEND
1x 0.4 mm 410 stainless steel nozzle
Hard Titanium thermal break
Compatible with every 1.75mm filaments
Up to 500°C (24V, enclosed print area)
Extruder:
Fully assembled all metal extruder
Compatible with every 1.75mm filaments
Adjustable width to connect the most known RepRap hotends
Available in 12 volts and 24 volts.
Market
Market profile
Industry sector market interests:
- Consumer Products
- Wholesale/Retail
Geographic markets:
Export experience:
- United States


Rails on Rack¶ ↑
This guide covers Rails integration with Rack and interfacing with other Rack components.
After reading this guide, you will know:
-
How to use Rack Middlewares in your Rails applications.
-
Action Pack's internal Middleware stack.
-
How to define a custom Middleware stack.
WARNING: This guide assumes a working knowledge of Rack protocol and Rack
concepts such as middlewares, url maps and Rack::Builder
.
Introduction to Rack¶ ↑
Rack provides a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between (the so-called middleware) into a single method call.
Explaining Rack is not really in the scope of this guide. In case you are not familiar with Rack's basics, you should check out the Resources section below.
Rails on Rack¶ ↑
Rails Application's Rack Object¶ ↑
Rails.application
is the primary Rack application object of a
Rails application. Any Rack compliant web server should be using
Rails.application
object to serve a Rails application.
rails server
¶ ↑
rails server
does the basic job of creating a
Rack::Server
object and starting the webserver.
Here's how rails server
creates an instance of
Rack::Server
Rails::Server.new.tap do |server| require APP_PATH Dir.chdir(Rails.application.root) server.start end
The Rails::Server
inherits from Rack::Server
and
calls the Rack::Server#start
method this way:
class Server < ::Rack::Server def start ... super end end
Here's how it loads the middlewares:
def middleware middlewares = [] middlewares << [Rails::Rack::Debugger] if options[:debugger] middlewares << [::Rack::ContentLength] Hash.new(middlewares) end
Rails::Rack::Debugger
is primarily useful only in the
development environment. The following table explains the usage of the
loaded middlewares:
| Middleware | Purpose | | ———————– | ——————————————————————————— | |
Rails::Rack::Debugger
| Starts Debugger | |
Rack::ContentLength
| Counts the number of bytes in the
response and set the HTTP Content-Length header |
rackup
¶ ↑
To use rackup
instead of Rails' rails server
,
you can put the following inside config.ru
of your Rails
application's root directory:
# Rails.root/config.ru require ::File.expand_path('../config/environment', __FILE__) use Rails::Rack::Debugger use Rack::ContentLength run Rails.application
And start the server:
$ rackup config.ru
To find out more about different rackup
options:
$ rackup --help
Development and auto-reloading¶ ↑
Middlewares are loaded once and are not monitored for changes. You will have to restart the server for changes to be reflected in the running application.
Action Dispatcher Middleware Stack¶ ↑
Many of Action Dispatcher's internal components are implemented as Rack
middlewares. Rails::Application
uses
ActionDispatch::MiddlewareStack
to combine various internal
and external middlewares to form a complete Rails Rack application.
NOTE: ActionDispatch::MiddlewareStack
is Rails equivalent of
Rack::Builder
, but built for better flexibility and more
features to meet Rails' requirements.
Inspecting Middleware Stack¶ ↑
Rails has a handy rake task for inspecting the middleware stack in use:
$ bin/rake middleware
For a freshly generated Rails application, this might produce something like:
use Rack::Sendfile use ActionDispatch::Static use Rack::Lock use #<ActiveSupport::Cache::Strategy::LocalCache::Middleware:0x000000029a0838> use Rack::Runtime use Rack::MethodOverride use ActionDispatch::RequestId use Rails::Rack::Logger use ActionDispatch::ShowExceptions use ActionDispatch::DebugExceptions use ActionDispatch::RemoteIp use ActionDispatch::Reloader use ActionDispatch::Callbacks use ActiveRecord::Migration::CheckPending use ActiveRecord::ConnectionAdapters::ConnectionManagement use ActiveRecord::QueryCache use ActionDispatch::Cookies use ActionDispatch::Session::CookieStore use ActionDispatch::Flash use ActionDispatch::ParamsParser use Rack::Head use Rack::ConditionalGet use Rack::ETag run Rails.application.routes
The default middlewares shown here (and some others) are each summarized in the Internal Middlewares section, below.
Configuring Middleware Stack¶ ↑
Rails provides a simple configuration interface
config.middleware
for adding, removing and modifying the
middlewares in the middleware stack via application.rb
or the
environment specific configuration file
environments/<environment>.rb
.
Adding a Middleware¶ ↑
You can add a new middleware to the middleware stack using any of the following methods:
-
config.middleware.use(new_middleware, args)
- Adds the new middleware at the bottom of the middleware stack. -
config.middleware.insert_before(existing_middleware, new_middleware, args)
- Adds the new middleware before the specified existing middleware in the middleware stack. -
config.middleware.insert_after(existing_middleware, new_middleware, args)
- Adds the new middleware after the specified existing middleware in the middleware stack.
# config/application.rb # Push Rack::BounceFavicon at the bottom config.middleware.use Rack::BounceFavicon # Add Lifo::Cache after ActiveRecord::QueryCache. # Pass { page_cache: false } argument to Lifo::Cache. config.middleware.insert_after ActiveRecord::QueryCache, Lifo::Cache, page_cache: false
Swapping a Middleware¶ ↑
You can swap an existing middleware in the middleware stack using
config.middleware.swap
.
# config/application.rb # Replace ActionDispatch::ShowExceptions with Lifo::ShowExceptions config.middleware.swap ActionDispatch::ShowExceptions, Lifo::ShowExceptions
Deleting a Middleware¶ ↑
Add the following lines to your application configuration:
# config/application.rb config.middleware.delete "Rack::Lock"
And now if you inspect the middleware stack, you'll find that
Rack::Lock
is not a part of it.
$ bin/rake middleware (in /Users/lifo/Rails/blog) use ActionDispatch::Static use #<ActiveSupport::Cache::Strategy::LocalCache::Middleware:0x00000001c304c8> use Rack::Runtime ... run Rails.application.routes
If you want to remove session related middleware, do the following:
# config/application.rb config.middleware.delete "ActionDispatch::Cookies" config.middleware.delete "ActionDispatch::Session::CookieStore" config.middleware.delete "ActionDispatch::Flash"
And to remove browser related middleware,
# config/application.rb config.middleware.delete "Rack::MethodOverride"
Internal Middleware Stack¶ ↑
Much of Action Controller's functionality is implemented as Middlewares. The following list explains the purpose of each of them:
Rack::Sendfile
-
Sets server specific X-Sendfile header. Configure this via
config.action_dispatch.x_sendfile_header
option.
ActionDispatch::Static
-
Used to serve static files. Disabled if
config.serve_static_files
isfalse
.
Rack::Lock
-
Sets
env["rack.multithread"]
flag tofalse
and wraps the application within a Mutex.
ActiveSupport::Cache::Strategy::LocalCache::Middleware
-
Used for memory caching. This cache is not thread safe.
Rack::Runtime
-
Sets an X-Runtime header, containing the time (in seconds) taken to execute the request.
Rack::MethodOverride
-
Allows the method to be overridden if
params[:_method]
is set. This is the middleware which supports the PUT and DELETE HTTP method types.
ActionDispatch::RequestId
-
Makes a unique
X-Request-Id
header available to the response and enables theActionDispatch::Request#uuid
method.
Rails::Rack::Logger
-
Notifies the logs that the request has began. After request is complete, flushes all the logs.
ActionDispatch::ShowExceptions
-
Rescues any exception returned by the application and calls an exceptions app that will wrap it in a format for the end user.
ActionDispatch::DebugExceptions
-
Responsible for logging exceptions and showing a debugging page in case the request is local.
ActionDispatch::RemoteIp
-
Checks for IP spoofing attacks.
ActionDispatch::Reloader
-
Provides prepare and cleanup callbacks, intended to assist with code reloading during development.
ActionDispatch::Callbacks
-
Provides callbacks to be executed before and after dispatching the request.
ActiveRecord::Migration::CheckPending
-
Checks pending migrations and raises
ActiveRecord::PendingMigrationError
if any migrations are pending.
ActiveRecord::ConnectionAdapters::ConnectionManagement
-
Cleans active connections after each request, unless the
rack.test
key in the request environment is set totrue
.
ActiveRecord::QueryCache
-
Enables the Active Record query cache.
ActionDispatch::Cookies
-
Sets cookies for the request.
ActionDispatch::Session::CookieStore
-
Responsible for storing the session in cookies.
ActionDispatch::Flash
-
Sets up the flash keys. Only available if
config.action_controller.session_store
is set to a value.
ActionDispatch::ParamsParser
-
Parses out parameters from the request into
params
.
Rack::Head
-
Converts HEAD requests to
GET
requests and serves them as so.
Rack::ConditionalGet
-
Adds support for “Conditional
GET
” so that server responds with nothing if page wasn't changed.
Rack::ETag
-
Adds ETag header on all String bodies. ETags are used to validate cache.
TIP: It's possible to use any of the above middlewares in your custom Rack stack.


About Me
Blog
Projects
Resume
Projects
CSS Cheat Sheet
The Many Handshakes of Cortez Lewis
Giant 6ft Water Balloon


{% include partials/section_header.html content="Basic Typography" id="type" %}
Smooth, thick and viscous on the palate, with a full and robust body. For a moment, it's sweet and tropical, then hops rush in and tear it all to shreds!
The lip-smacking hop profile roams all over the place, as a sticky pine and a slightly burnt resinous coating forms on the palate.  Malt-wise, caramel and bread flavors clamor to be heard, but the hops entangle them and draw them back into the depths of the brew, where they die. Malt flavors are there, but they add sweetness and body versus anything distinct enough to challenge the hops.


In both civilian and military applications, the interest and need for autonomous vessels that can carry out missions by sea, air and land without contact with an operator has increased. Examples on such tasks are surveillance, rescue operation, mapping, repair or tactical missions. This project is a collaboration between Linköpings University and Combine Control Systems AB. The underwater vehicle used in the project is a BlueROV from Blue Robotics, and it is provided by Combine Control Systems AB.
The purpose of this project is to mount ultrasonic sensors on the underwater vehicle, develop the model accordingly and create autonomous behavior for the craft, including advanced regulation, positioning in known environment and navigation.
The ROV is a underwater vehicle with six thrusters that enable it to navigate in six degrees of freedom under water. Located on the ROV is an inertial measuerement unit (IMU), a magnetometer and a pressure sensor to estimate it's position, velocity, orientation and angular velocities. The ROV is remotely operated via a PC using a Xbox controller or by setting a path through the GUI. The PC communicates with the ROV's internal computer through a cable.
IMU, magnetometer, pressure sensor and ultrasonic sonars are used to estimate the ROV's position and attitude. The ROV is equipped with three sonars, they are mounted in forward, right and left direction. Each sonar has a measurement range of 1.3 - 20 meters.
The ROV's velocity and position controllers are of LQ-design which are based on linear models of the system. Feedback linearization is used to cancel nonlinearities and get linear behavior of the system for both controllers. The ROV can follow a path by reference regulation.
An Extended Kalman filter (EKF) is used to fuse measurements from sonars, IMU, magnetometer and pressure sensor with a motion model. The EKF has 15 states; 6 global for position and attitude, 6 local for linear and angular velocities and 3 for biases in angular velocity. The motion model is used to improve state predictions. The sonars measurements are compared with the expected distances, given the current position and attitude of the ROV. This is illustrated below together with a result from a comparison between estimated and ground truth position.
Matlab/Simulink built simulator to simplify code generation and testing
Simulates states by using a simplified model of the ROV, calculates and outputs sensor data to ROS
SIL simulation of sensor fusion and/or controller
Controller can be run in Simulink or C++ via ROS
3D visualization and plots of all states during a simulated run
Paths are generated using the A* search algorithm. The start and end positions can easily be selected from the GUI. The path chooses the shortest path between the points while taking into account the obstacles on the map.


Before Change
try:
BOARD = ArduinoBoard(config[DOMAIN][CONF_PORT])
except (serial.serialutil.SerialException, FileNotFoundError):
_LOGGER.exception("Your port is not accessible.")
return False
if BOARD.get_firmata()[1] <= 2:
_LOGGER.error("The StandardFirmata sketch should be 2.2 or newer.")
After Change
_LOGGER.error("The StandardFirmata sketch should be 2.2 or newer")
return False
except IndexError:
_LOGGER.warning("The version of the StandardFirmata sketch was not"
"detected. This may lead to side effects")
def stop_arduino(event):
Stop the Arduino service.
BOARD.disconnect()


Constructor
new InputRT()
InputRT Web Component
Initialize ShadowRoot, create text slot and bind to object
Examples
<input-rt mode="sender" > </input-rt>
<input-rt mode="sender" url="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
bootstrap="border-primary border" > </input-rt>
<input-rt size="s" > </input-rt>
<input-rt height="200px" width="600px" > </input-rt>
<input-rt password > </input-rt>
<input-rt disable > </input-rt>
Members
bootstrap
get bootstrap() Check if bootstrap exists in HTML. Returns: True or False
bootstrap
set bootstrap(val) Sets bootstrap if value passed in, or removes it if nothing is passed. Returns: Null
disabled
set disabled(val) Sets disabled if value passed in, or removes it if nothing is passed. Returns: Null
disabled
get disabled() Check if disabled exists in HTML. Returns: True or False
height
get height() Check if height exists in HTML. Returns: True or False
height
set height(val) Sets height if value passed in, or removes it if nothing is passed. Returns: Null
mode
set mode(val) Sets mode if value passed in, or removes it if nothing is passed. Returns: Null
password
set password(val) Sets password if value passed in, or removes it if nothing is passed. Returns: Null
password
get password() Check if password exists in HTML. Returns: True or False
size
get size() Check if size exists in HTML. Returns: True or False
size
set size(val) Sets size if value passed in, or removes it if nothing is passed. Returns: Null
url
set url(val) Sets url if value passed in, or removes it if nothing is passed. Returns: Null
width
set width(val) Sets width if value passed in, or removes it if nothing is passed. Returns: Null
width
get width() Check if width exists in HTML. Returns: True or False
Methods
_choose_element(mode) → {String}
Internal function to determine the correct element in concern.
Parameters:
| Name | Type | Description |
|---|---|---|
mode |
String |
an html element in concern
_init_bootstrap_URL()
Init function that populates url attribute and bootstrap attribute if the url and bootstrap are both set.
_init_dimension()
Init function that sets the dimensions of the web component.
_init_disabled()
Init function that sets the web-component to be disabled.
_init_mode(mode)
Mode attribute that sets the properties of the input field
Parameters:
| Name | Type | Description |
|---|---|---|
mode |
String | will set mode properly to the mode passed in |
Properties:
| Name | Type | Description |
|---|---|---|
custom |
String | user can implement their own mode in this slot |
textarea |
String | create a textarea which will display text |
sender |
String | set default to input box |
- To Do:
-
- need discussion on if this is the right approach, if we plan on adding more modes then we should, keep switch else a simple if - else might be better
- should we have a receiver object as well
Example
this._init_mode();
_init_password()
Initializes this element to be of type password only if the element in concern is input
_init_size()
Initializes size if specificed, and chooses default if not.
_register_mode(register)
Internal function that helps with setting the event handlers for the mode attribute hello
Parameters:
| Name | Type | Description |
|---|---|---|
register |
Bool | if True will add evenListener, else will remove them |
Properties:
| Name | Type | Description |
|---|---|---|
sender |
String | add eventListener keypress & click |
- To Do:
-
- think of a way to refactor to handle more cases
- perhaps allow user to input
Example
connectedCallback(){this._register_mode();}
append(message)
Public function that works as a callback to populate the internal text area with JS if desired
Parameters:
| Name | Type | Description |
|---|---|---|
message |
String | text to print out |
Example
append('Runtime Terror is the best team!')
send()
Public function for sending messages, leverages an internal WC's send functionality
Properties:
| Name | Type | Description |
|---|---|---|
msgInput |
String | query the input |
send |
function | the sender sends the msgInput value |
- To Do:
-
- need to find a way the input element and poluate that
Example
case KEYCODE.ENTER: this.send();


The template syntax can formally be defined as follows:
TEMPLATE = BLOCK [ BLOCK ... ] BLOCK = { HDU | GROUP } GROUP = \GROUP [ BLOCK ... ] \END HDU = XTENSION [ LINE ... ] { XTENSION | \GROUP | \END | EOF } LINE = [ KEYWORD [ = ] ] [ VALUE ] [ / COMMENT ] X ... - X can be present 1 or more times { X | Y } - X or Y [ X ] - X is optional
At the topmost level, the template defines 1 or more template blocks. Blocks can be either HDU (Header Data Unit) or a GROUP. For each block the parser creates 1 (or more for GROUPs) FITS file HDUs.


|
cds
2.3.1
|
SegmentedQueue internal statistics. May be used for debugging or profiling. More...
#include <cds/intrusive/segmented_queue.h>
Public Types | |
| typedef Counter | counter_type |
| Counter type. | |
Data Fields | |
| counter_type | m_nPush |
| Push count. | |
| counter_type | m_nPushPopulated |
| Number of attempts to push to populated (non-empty) cell. | |
| counter_type | m_nPushContended |
| Number of failed CAS when pushing. | |
| counter_type | m_nPop |
| Pop count. | |
| counter_type | m_nPopEmpty |
| Number of dequeuing from empty queue. | |
| counter_type | m_nPopContended |
| Number of failed CAS when popping. | |
| counter_type | m_nCreateSegmentReq |
| Number of request to create new segment. | |
| counter_type | m_nDeleteSegmentReq |
| Number to request to delete segment. | |
| counter_type | m_nSegmentCreated |
| Number of created segments. | |
| counter_type | m_nSegmentDeleted |
| Number of deleted segments. | |
SegmentedQueue internal statistics. May be used for debugging or profiling.


Freelancing
A freelancer or freelance worker,is a term commonly used for a person who is self-employed and is not necessarily committed to a particular employer long-term.
App Developing
Mobile app development is the act or process by which a mobile app is developed for mobile devices, such as personal digital assistants, enterprise digital assistants or mobile phones.
Online Advertising
Online advertising, also called online marketing or Internet advertising or web advertising, is a form of marketing and advertising which uses the Internet to deliver promotional marketing messages to consumers.


Roger Pressman
Agile overview
"These slides are designed to accompany Software Engineering: A Practitioner’s Approach, 7/e (McGraw-Hill, 2009) Slides copyright 2009 by Roger Pressman."


Smartcards or hardware security modules (HSM) are technologies to keep private keys on devices physically isolated to a device only available to the user. That way only the intended user can use that device to authenticate, authorize or perform other functions that involve the private keys. These come usually in the form of a USB device or token which is plugged into the local computer.
In modern "cloud" computing, it is often desirable to virtually transfer such a device on remote servers. For example, one can sign software or documents on a remote server, use the local smart card to authorize itself to Kerberos, or any other possible use. There are various approaches to tackle that problem, and on different levels of the smart card application stack. It is possible to forward the USB device holding the smart card, or forward the lower-level PC/SC protocol which some smart cards talk, or forward the high-level interface used to communicate with smart cards, the PKCS#11 interface.
To address that problem, in p11-kit, we allow the forwarding of the higher level smart card interface, PKCS#11. In the following paragraphs we describe the approach and tools needed to perform that forwarding over SSH secure communication channels.
We assume having a local workstation, and a remote server. On the local computer we have inserted a smart card, in our examples we use a Nitrokey card with the OpenSC drivers. We will forward the card from the workstation to the remote server.
To forward a smartcard to a remote server, we first need to identify which smartcards are available. To list the smartcards currently attached to the local computer, use the p11tool command from the gnutls package. For example:
$ p11tool --list-tokens ... Token 6: URL: pkcs11:model=PKCS%2315%20emulated;manufacturer=www.CardContact.de;serial=DENK0000000;token=UserPIN%20%28Daiki%27s%20token%29 Label: UserPIN (Daiki's token) Type: Hardware token Manufacturer: www.CardContact.de Model: PKCS#15 emulated Serial: DENK0000000 Module: opensc-pkcs11.so ...
This is the entry for the card we'd like to forward to remote system. The important pieces are the 'pkcs11:' URL listed above, and the module name. Once we determine which smartcard to forward, we expose it to a local Unix domain socket, with the following p11-kit server command.
$ p11-kit server --provider /usr/lib64/pkcs11/opensc-pkcs11.so "pkcs11:model=PKCS%2315%20emulated;manufacturer=www.CardContact.de;serial=DENK0000000;token=UserPIN%20%28Daiki%27s%20token%29"
Here we provide to the server the module location (optional) with the --provider option, as well as the URL of the card. We copied the values from the Module and URL lines of the p11tool output above. When the p11-kit server command starts, it will print the address of the PKCS#11 unix domain socket and the process ID of the server.
P11_KIT_SERVER_ADDRESS=unix:path=/run/user/12345/p11-kit/pkcs11-12345 P11_KIT_SERVER_PID=12345
For later use, set the variables output by the tool on your shell prompt
(e.g., copy and paste them or call the above p11-kit server command line with
eval $(p11-kit server ...)
).
On the remote server, we will initially forward the previously generated PKCS#11 unix socket, and then access the smart card through it. To access the forwarded socket as if it were a smart card, a dedicated PKCS#11 module p11-kit-client.so is provided as part of the p11-kit-server package.
One important detail you should be aware of, is the file system location of the forwarded socket. By convention, the p11-kit-client.so module utilizes the "user runtime directory", managed by systemd; the directory is created when a user logs in, and removed upon logout, so that the user doesn't need to manually clean up the socket file.
To locate your user runtime directory, do:
$ systemd-path user-runtime /run/user/1000
The p11-kit-client.so
module looks for the socket file under a
subdirectory (/run/user/1000/p11-kit
in this example). To enable
auto-creation of the directory, do the following.
$ systemctl --user enable p11-kit-client.service
We will use ssh to forward the local PKCS#11 unix socket to the remote server. Following the p11-kit-client convention, we will forward the socket to the remote user run-time path so that cleaning up on disconnect is not required. The remote location of the run-time path can be obtained as follows.
$ ssh [user]@[remotehost] systemd-path user-runtime /run/user/1000
The number at the end of the path above is your user ID in that system (and thus will vary from user to user). You can now forward the Unix domain socket with the -R option of the ssh command, after replacing the example path with the actual run-time path.
$ ssh -R /run/user/[userID]/p11-kit/pkcs11:${P11_KIT_SERVER_ADDRESS#*=} [user]@[remotehost]
After successfully logging in to the remote host, you can use the forwarded
smartcard as if it were directly connected to the server using the
p11-kit-client.so
. Note that if any error occurs during the forwarding
setup, you will see something like this on your terminal:
Warning: remote port forwarding failed for listen path /run/user/...
Let's first make sure the smart card works on the remote system, by listing it:
$ ls -l /run/user/1000/p11-kit/pkcs11 $ p11tool --provider /usr/lib64/pkcs11/p11-kit-client.so --list-tokens ... Token 0: URL: pkcs11:model=PKCS%2315%20emulated;manufacturer=www.CardContact.de;serial=DENK0000000;token=UserPIN%20%28Daiki%27s%20token%29 Label: UserPIN (Daiki's token) Type: Hardware token Manufacturer: www.CardContact.de Model: PKCS#15 emulated Serial: DENK0000000 Module: (null) ...
We can similarly generate, copy objects or test certificates to the card using the same command. Any applications which support PKCS#11 can perform cryptographic operations through the client module.
To utilize the p11-kit-client module with OpenSSL (via engine_pkcs11 provided by the libp11 package) and GnuTLS applications, you have to register it in p11-kit. To do it for the current user, use the following commands:
$ mkdir .config/pkcs11/modules/ $ echo "module: /usr/lib64/pkcs11/p11-kit-client.so" >.config/pkcs11/modules/p11-kit-client.module
Once this is done both OpenSSL and GnuTLS applications should work, for example:
$ URL="pkcs11:model=PKCS%2315%20emulated;manufacturer=www.CardContact.de;serial=DENK0000000;token=UserPIN%20%28Daiki%27s%20token%29" # Generate a key using gnutls’ p11tool $ p11tool --generate-ecc --login --label test-key "$URL" # generate a certificate request with the previous key using openssl $ openssl req -engine pkcs11 -new -key "$URL;;object=test-key;type=private;pin-value=XXXX" \ -keyform engine -out req.pem -text -subj "/CN=Test user"
Note that the token URL remains the same in the forwarded system as in the original one.
To re-use the already forwarded smartcard for authentication with another remote host, you can run ssh and provide the -I option with p11-kit-client.so. For example:
$ ssh -I /usr/lib64/pkcs11/p11-kit-client.so [user]@[anotherhost]
To register the forwarded smartcard in NSS applications, you can set it up with the modutil command, as follows.
$ sudo modutil -dbdir /etc/pki/nssdb -add p11-kit-client -libfile /usr/lib64/pkcs11/p11-kit-client.so $ modutil -dbdir /etc/pki/nssdb -list ... 3. p11-kit-client library name: /usr/lib64/pkcs11/p11-kit-client.so uri: pkcs11:library-manufacturer=OpenSC%20Project;library-description=OpenSC%20smartcard%20framework;library-version=0.17 slots: 1 slot attached status: loaded slot: Nitrokey Nitrokey HSM<PHONE_NUMBER>00000000000000) 00 00 token: UserPIN (Daiki's token) uri: pkcs11:token=UserPIN%20(Daiki's%20token);manufacturer=www.CardContact.de;serial=DENK0000000;model=PKCS%2315%20emulated


{% extends "otree/Base.html" %} {% load i18n %} {% load otree static %} {% comment %} NOTE: we should keep this page as simple as possible so that 'view source' is friendly i removed many linebreaks to make output HTML cleaner {% endcomment %} {% block body_main %}


. ± . headache (.%) (%) improvement {border-style attacks experimental px;} #ffffff;} children psychotherapy study patients psychodynamic CBCL treatment group scores (**) clinical patient’s significant adolescents control (*) intensity p=. possible (i.e. adolescent approach characteristics idiopathic migraine parents patient px; short-term {font-family Cephalalgia EuroQoL child family font-size health psychological symptoms usual (Table Balottin Child T-T care change criteria differences double; factors life months pilot program psychiatric psychotherapeutic quality score sessions used Health Mild Moderate better border-color border-width brief compared controls did different effective efficacy frequency headache, mean neurological problems sample solid; {font-style {font-weight (i.e., (p = .), ./j.-...x CGI Duration Frequency Headache Intensity Marked Migraine Psychiatry Psychological Table [], analysis applied aura basis bold coded comparing courier; disorders duration em; emotional explored frequency, groups headache. inclusion individual limitation main major normal pain pt;} showed specific statistical tension-type


The system page lets you access an OutBox page for each user on the system. You can also see a snapshot image from the system's camera if one is available, and get hardware information about the system.
Use the following buttons on the system page to:
View a picture from the system's camera.
Display information about this system.
Get help.


Joan Marie Verba
About
Portfolio
Contact
Portfolio
Media Search
Astronomy Picture of the Day
Current Weather
Weather Forecast
Guess A Number
Crystals Collector Game
Totally Trivial Trivia Game
Outer Space GIFs
Train Schedule
LIRI Interface
Constructor Word Game
Online-Retailer
Friend Finder
MySQL project
Sequelized MySQL project
News Scraper
Memory Game
New York Times Search
Connect with Me


WebViewHelper library
Posted on December 16, 2016 in Development
A little about WebView widgets:
Webview widget is used to display HTML contents in an Android app. HTML contents can be rendered in a TextView widget using Html.fromHtml() method to parse very basic text. So why do we need WebView widget ? WebView widget is capable of handling more advanced HTML tags, Javascript and CSS, which gives a native feel to HTML contents right in your app. But this doesn't come for free. WebViews are more memory intensive when compared to TextView widget.
Background:
Pre Android 4.4, WebView was powered by WebKit. Starting Android 4.4, it’s powered by Chromium. Starting Android 5.0, WebView is distributed through Google Play Store. Starting Android 7.0, WebView uses Chrome browser app or System WebView app when Chrome browser is disabled.
Downside of newer implementation starting Android 5.0: Since System WebView implementation is distributed through Play Store and no more bundled in Android OS, its challenging for OEMs to keep their implementation of WebView in sync with Play Store’s System WebView. The two can go out of sync very quickly.
Behaviors:
- Any links embedded in a WebView widget will open in a WebView in Android 5.0 and over.
- On Android 4.4 and below, links embedded in a WebView will open in a Web Browser rather than in a WebView widget
- By default, javascript is disabled in WebView widget. It can be turned on by
getSettings().setJavaScriptEnabled(true)
. I’ve created convenience classWebViewHelper
aroundandroid.webkit.WebView
class features.
Using from Android Studio:
Add following in your project's build.gradle
under dependencies
block.
compile 'org.ptyagicodecamp:webview-android:0.0.2'
How to use WebViewHelper
class ?
Initializing
You would need to pass reference to WebView
widget into WebViewHelper
like this:
WebViewHelper webViewHelper;
....
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = (WebView) findViewById(R.id.webView);
//initialize WebViewHelper
webViewHelper = new WebViewHelper(webView);
}
Using library
public void loadUrl(View view) {
webViewHelper.loadUrl("https://ptyagicodecamp.github.io/");
}
public void loadData(View view) {
webViewHelper.loadData("Click Here to visit my Blog");
}
public void toggleJavaScript(View view) {
if (((ToggleButton)view).isChecked()) {
webViewHelper.enableJS();
Toast.makeText(this, "Javascript is enabled", Toast.LENGTH_LONG).show();
} else {
webViewHelper.disableJS();
Toast.makeText(this, "Javascript is disabled", Toast.LENGTH_LONG).show();
}
}
Source code is available here


5.2 Geomorphology
5.2.1 Thom, 1967
“Mangrove ecology and deltaic geomorphology: Tabasco, Mexico” (Thom 1967)
A full summary of Thom, 1967 is provided in the “Zonation and Disturbance section.” Please refer to Section 4.1.2.
From a geomorphological standpoint, this is one of the most well-cited studies arguing that mangrove vegetation patterns respond primarily to the hydrological and sedimentary conditions that exist within a given site.
5.2.2 Carlton, 1974
“Land building and stabilization of mangroves” (Carlton 1974)
Key contribution: This is a perhaps less seminal paper but provides a brief review of the literature surrounding the ability of mangroves to “build” and “stabilize” shorelines. Much of the reviewed work is from Florida.
Key conclusions: Carlton concludes more or less that mangroves do not “build” land per se, but are influential upon the rate at which sediments accrete on shorelines. In sum, two viewpoints exist:
- mangroves “build” land by accretion of sediments (a la Davis 1940) (UNSUPPORTED)
- mangroves modify the rate at which sediments accrete, thus affecting the speed of geomorphic change rather than the direction (Egler 1952, Gill 1971) (SUPPORTED)
Further reading:
- Egler 1952
- Gill 1971
5.2.3 Thom, 1982
“Mangrove ecology: A geomorphological perspective” (Thom 1982)
Key contribution: This study is best known for the five environmental settings that Thom lays out for clastic (terrigenous) sediment deposition. The five environmental settings are detailed below:
- River dominated - Deltaic or estuarine settings in which significant sediment is transported from alluvial flows to the coastal region. The landscape is marked by numerous distributaries and interdistributary basins that vary in hydrology, particularly in regards to tidal influence.
- Tide dominated - Estuarine type settings in which the dominant hydrology is the bidirectional flow of tides. Often see sandy shoals within the estuary that are shaped parallel to the flow of tides.
- Wave dominated - Environmental settings in which flat shorelines accumulate sand barriers or cheniers that create lagoons and create regions of low-energy coastlines in which mangroves may establish. Sediment is primarily autochthonous.
- River & wave composite - Settings in which both deltaic plains with strong alluvial influence as well as strong wave influences create a complex of alluvial fans and lagoons blocked by wave-distributed sand barriers from longshore flows. E.g., Tabasco, Mexico.
- Drowned river valleys - Estuaries or embayments that are underlain by impervious rock and have been flooded during the most recent period of sea level rise.
Key knowledge: Thom describes the geomorphology of mangrove from three standpoints:
- Geophysical - The dominant physical processes that affect a landscape, such as SLR or climate
- Geomorphic - The dynamic history of the land in response to the dominant geophysical factors. Can be broken into three scales:
- macro: clastic vs. carbonate sediments
- meso: dominant physical process (tide vs. riverine vs. wave)
- micro: microtopographic features such as drainage and elevation that produce environmental gradients
- Biological - Factors such as biogeography or competition that affect the landscape
Additionally, Thom notes that his five suggested geomorphig settings are not comprehensive but are rather representative of dominant processes that may be relevant. Thom goes on to discuss variations and scale in time and space and their resultant effects on mangrove geomorphology. He concludes that zonation of mangrove species responds opportunistically to geomorphic setting, and areas with high geomorphic diversity will have high degrees of habitat variation.
Topics to think about further:
- How do geomorphic settings related to soil texture and soil carbon?
5.2.4 Woodroffe, 1983
“Development of mangrove forests from a geological perspective” (Woodroffe 1983)
Key contribution: This paper describes the development of an autochthnous, geomorphically inactive mangrove forests on Grand Cayman island. The study takes a geological perspective in that they examine soil depths and soil cores throughout the west peninsula, and reconstruct models of autochthonous development of the mangrove forest through time.
Key findings: The study concludes that there were key tidal inlets which were eventually breached my rising sea levels and allowed for expanded colonization of the calcerous bedrock by mangroves. Soil depths & cores indicate that there was a forest of landlocked mangroves at one point during low-levels (200 cm below present), but the authors are unsure of how tidal fluxes reached this area.
5.2.5 Thom, 1984
“Coastal landforms and geomorphic processes” (Thom 1984)
Key contribution: This is an extension of (Thom 1982), in which Thom describes three carbonate settings. The conclusions are largely the same as (Thom 1982), and thus refer to section 5.2.3 for them.
Key additions: The carbonate settings that Thom adds to his original five clastic settings are as follows:
- Carbonate platform - Accumulation of lime muds and peat on low-energy tropical coasts. Oftentimes the fringing mangroves are against large, open, shallow bodies of water. Coral reef or sand barriers may block wave and tidal energy to produce low-energy conditions
- Sand/shingle barrier - Mangroves may form on the cemented or non-cemented coral detritus, for example patchy mangroves colozining portions of the Great Barrier Reef. Sand mostly consists of carbonate particles and sea levels play an important part on depositional characteristics
- Carbonate embayments - Embayments in which soil “crusts” were submerged by SLR during Holocene. E.g., patchy mangroves on old reef complexes that are highly variable and reflect varability in the substrate complexity.
Key knowledge: In addition, Thom discusses some of the prior models of succession and zonation in mangroves. In particular he identifies three trends of research, including one in which he situates himself:
- “Classical succesional view of mangroves” - The “Davis 1940” view of mangroves that emphasizes the role of biota rather than geophysical or geomorphological processes
- “Environmental gradient view” - The more “ecological niche” based view of vegetation patterning that results from environmental gradients; Watson 1928 was one of first studies to argue for this effect
- “Physiographic ecology” - regards physical and botanical landscapes as mosaics of landforms that result from differential effects of physical processes on different materials, and the promotion of different biological communities in response to them
- focused at landscape scale, geomorphic variety produces variety in biological assemblages
Other reading:
- Snedaker, 1982 - Mangrove species zonation: Why?
5.2.6 Woodroffe, 1990
“The impact of sea-level rise on mangrove shorelines” (Woodroffe 1990)
Key contribution: This review by Woodroffe discusses the impacts of relative sea level rise as it was projected at the time on mangroves. There has since been 27 years worth of research in this topic, and thus it’s important to couple this study with more recent papers.
Crux of the issue - “order of rates of sea-level rise that have been predicted would in some cases lead to major disruption of mangrove forests”
Key notes:
- ability of mangrove forests to respond to different levels of sea level rise depends on coastal morphology
- steep cliffs (e.g., mid-oceanic atolls) may not be able to respond due to lack of ability to migrate along shoreline as well as distant propagule sources for recolonization
- Eustatic patterns during Holocene have varied regionally
- in Indian and Pacific Oceans, rose to approximately 1-2 m above present levels, before falling and stabilizing at current levels
- in West Indies and Southern US, increasingly risen though at decelerating rates to arrive at period of stability of today
- mangroves are effective indicators of past sea-level if species with given preference for position in intertidal zone can be identified within paleosedimenets
- however, often not clear because of compaction and contamination with younger aged organic matter
- given sea level rise, the ability of mangrove forests to persist may be largely dependent upon the catchment size of deltas (i.e., size of area from which water and sediments drain)
- carbonate settings are at higher risk of undergoing regime shifts relative to deltaic or estuarine mangroves
Woodroffe combines Thom’s environmental settings into three primary classes of geomorphological development:
- river dominated
- tide dominated
- carbonate
He expounds on them in this article, whereas he summarizes them in his review in Tropical Mangrove Ecosystems (see Section @(woodroffe1992)).
5.2.7 Woodroffe, 1992
“Mangrove sediments and geomorphology” (Woodroffe 1992)
Key contribution: This is a key synthesis of knowledge related to geomorphology and environmental settings in mangroves. Woodroffe gives an overview of sedimentation and shoreline progradation / erosion, followed by a review of Thom’s environmental settings and Lugo and Snedaker’s mangrove habitats. He concludes the article with a review of stratigraphy and paleoecology, with particular reference to mangrove responses to relative sea level rise.
Key findings:
- For Thom’s clastic environmental settings, refer to Section 5.2.3
- For Thom’s carbonate environmental settings, refer to Section 5.2.5
- For Lugo and Snedaker’s functional habitats, refer to Section 4.1.3
Diagrams of Thom’s environmental settings are provided below:
Stratigraphy and paleoecology:
- Quaternary period (~past two million years) comprised of:
- Holocene (~11,700 YBP)
- sea level has been approximately stable for 6,000 years
- sea level was rising rapidly from approximately 10,000 - 6,000 YBP
- though there is likely regional variation
- Pleistocene (~2.5 mil to 11,700 YBP)
- Sediments deposited during Holocene are well preserved and contain structures & fossils that are useful, whereas sediments deposited during Pleistocene are less well preserved
- sea level rise on more gradually sloping coasts likely resulted in significant fluctuation of mangrove forests, whereas carbonate atolls (e.g., on coral) likely disappeared during high sea levels or were restablished during low sea levels
- transgression - landward movement of shoreline during periods of sea level rise
- regression - seaward movement of shoreline during periods of sea level subsidence
- there are also iteractions with progradation and erosion that may reverse processes at specific locations
- Woodroffe examines three patterns of tropical geomorphological development:
- tropical deltas that are river dominated (poorly studied as of 1992)
- estuarine embayments that are tide-dominated
- Progradational model - estuary shoreline gradually build into estuary and is generally fringed by mangroves
- Big swamp model - rapid accumulation of sediment as sea level stabilizes followed by vertical accretion and conversion to other types; differs from progradational model in that there’s little age difference between mangrove sediments
- Barrier estuary/mud basin - sand reworked from seward shelf and forms sandy barrier or flood tidal delta; lagoon is sink for fluvial sand and mud from terrestrial sources by rivers
- carbonate banks or reefs
- predominantly characterized by in situ production of sediments
Note: This is a key study that would be good to review again later.
5.2.8 McKee, 2007
“Caribbean mangroves adjust to rising sea level through biotic controls on change in soil elevation” (McKee, Cahoon, and Feller 2007)
Key contribution: This is a very well-cited study that experimentally examples biological controls on soil elevation in mangroves of the Meso American Barrier Reef (in Belize).
Study design: The authors installed elevation rods with rod surface elevation tables (RSETs) that were able to measure changes in elevation from a baseline over the course of three years in fringe, transition and interior mangroves. They examined the effects of nutrient additions (N, P & a control) across three transects at three replicate sites. In addition, they laid a sand horizon in a plot adjacent to the RSETs and used cores to monitor subsurface accretion, allowing for differentiation between subsurface accretion and surface accretion of biomass to elevation. Finally, the authors examine several cores (up to 10m in depth) across sites throughout the Caribbean to examine relative SLR and mean soil accretion.
Key results: The authors conclude that the fringe portion of the forests are able to keep pace with sea level rise, primarily due to subsurface accumulation of biomass (significantly correlated with elevation change). The fringe zone was found to have significantly positive gain in elevation, with majority from subsurface change, whereas interior and transition zones saw subsidence. Elevation gains were seen across all sites for P addition, whereas elevation gain was variable in directino for N (negative in interior).
The authors give three key points:
- Rates of modern change in elevation may vary in both direction and magnitude within forests
- Elevation changes vary in relation to physico-chemical gradients that may control natural productivity of mangroves
- Elevation changes due to variation in nutrients are variable in both direction and magnitude
The key results in elevation change across treatments are shown below:
The results from the mangrove peat cores showed that peat accumulation corresponded with rates of SLR over the past 6,000-7,000 years. Although they are currently keeping pace with sea level rise, the cores show that at points (in which SLR exceeded 5 mm / yr), mangroves were lost from the area. Thus, the presence of mangroves at these sites depends on relative SLR rates (eustatic rise plus local subsidence). Rates of mangrove peat accretion, however, may underestimate ability to respond to SLR as these are often based on mean rates from historical records that likely fluctuate significantly in response to SLR.
5.2.9 Woodroffe, 2016
“Mangrove sedimentation and response to relative sea level rise” (Woodroffe et al. 2016)
Key contribution: This study is a review of sedimentary processes and geomorphology with a particular focus on their responses to relative sea level rise. The study introduces the concept of the accomodation space in the context of mangroves, which is the space available for potential sediment accumulation.
Notes:
Considering processes at different scales:
- Macroscale - processes at the landscape level (environmental setting a la Thom)
- Climate, eustatics
- Mesoscale - habitat level (fringe, basin, etc. a la Lugo and Snedaker)
- Hydrodynamics, sediment supply (allochthonous vs. autochthonous)
- Microscale - individual tree or plot level
- Interactions between surface elevation, geomorphic processes (accretion vs. compaction), and biological processes (BGB production)
A nice summary of interactions between sedimentology, hydrology and biology:
“The distribution of mangrove species coincides with the intertidal accomodation space, which progressively fills through sediment accumulation. Emergent properties and biocomplexity are a function of hydroperiod and are related to salinity and flooding tolerance, the latter of which is related to root morphologies, physiology, and reproductive traits such as vivipary.”
Accomodation space - the space available for potential sediment accumulation. Typically see highest accomodation space at shoreline in mangroves, though it may be highly variable (e.g., basin areas that are only flooded during highest tides).
- may distinguish between mineral vs. biological accretion, and thus may consider “ecological accomodation space”
Rates of sedimentation depend upon the accomodation space, which depends on hydrology and other factors. In the short term, the rate of sediment deposition appears independent of rate of SLR. The accomodation space is directly constrained by upper limit of tidal flooding.
Focusing on vertical adjustment within a mangrove forests risks missing broader regional picture in that mangroves have constantly shifted position throughout time, and thus there may be natural fluctuations with sea level rise that can maintain existence as well as are potentially key climate change mitigation opportunities.
Further reading:
- See the highlighted references in Mendley for additional reading – there are quite a number worth looking at further.
Placeholder
Thom, Bruce G. 1967. “Mangrove Ecology and Deltaic Geomorphology: Tabasco, Mexico.” The Journal of Ecology, 301–43. doi:10.2307/2257879.
Carlton, Jedfrey M. 1974. “Land-Building and Stabilization by Mangroves.” Environmental Conservation 1 (4): 285–94. doi:10.1017/S0376892900004926.
Thom, Bruce G. 1982. “Mangrove Ecology: A Geomorphological Perspective.” In Mangrove Ecosystem in Australia, Structure, Function and Management, edited by BF Clough, 3–17. Australian Institute of Marine Science.
Woodroffe, Colin D. 1983. “Development of Mangrove Forests from a Geological Perspective.” In Biology and Ecology of Mangroves, edited by H.J. Teas, 1–17. Springer. doi:10.1007/978-94-017-0914-9_1.
Thom, Bruce G. 1984. “Coastal Landforms and Geomorphic Processes.” In The Mangrove Ecosystem: Research Methods, edited by Sam C Snedaker and Jane G Snedaker, 3–17. United Nations Educational, Scientific, & Cultural Organization.
Woodroffe, Colin D. 1990. “The Impact of Sea-Level Rise on Mangrove Shorelines.” Progress in Physical Geography 14 (4): 483–520. doi:10.1177/030913339001400404.
Woodroffe, Colin D. 1992. “Mangrove Sediments and Geomorphology.” In Tropical Mangrove Ecosystems, edited by Alastar I Robertson and Daniel M Alongi, 7–41. doi:10.1029/CE041p0007.
McKee, Karen L, Donald R Cahoon, and Ilka C Feller. 2007. “Caribbean Mangroves Adjust to Rising Sea Level Through Biotic Controls on Change in Soil Elevation.” Global Ecology and Biogeography 16 (5): 545–56. doi:10.1111/j.1466-8238.2007.00317.x.
Woodroffe, Colin D, Kerrylee Rogers, Karen L McKee, Catherine E Lovelock, IA Mendelssohn, and Neil Saintilan. 2016. “Mangrove Sedimentation and Response to Relative Sea-Level Rise.” Annual Review of Marine Science 8: 243–66. doi:10.1146/annurev-marine-122414-034025.


(+64)<PHONE_NUMBER>
<EMAIL_ADDRESS>English
|
Spanish
Chinese
Arabic
$USD
|
Euro
Yuan
AED
My Account
My Profile
Setting
LogOut
Toggle navigation
Home
About us
Shop
Blog
Pages
Product Page
Product Detail
Blog
Blog Detail
Our Cart Page
Checkout
Contact us
2
My Cart
$29.00
New Collections
Our Cart Page
Your Items
Product Name
Price
Quantity
Total
Black Leather Ski Jacket
Size : XXL
Color : Black
$ 25,15
-
+
$ 115,69
Black Leather Skirt
Size : XXL
Color : Black
$ 25,15
-
+
$ 115,69
Clear Shopping Cart
Update Shopping Cart
Continue Shopping
Calculate Shipping
United Kingdom(UK)
United Kingdom(UK)
United Kingdom(UK)
United Kingdom(UK)
United Kingdom(UK)
United Kingdom(UK)
United Kingdom(UK)
United Kingdom(UK)
GET A QUOTE
Coupon Discount
Apply code
Cart Total
SUB TOTAL
:
$ 531,19
GRAND TOTAL
:
$ 531,19
PROCEED TO CHECKOUT
Subscribe To Say Update With Latest News And Discounts
Subscribe Now
Free WordPress Themes
Powered by
Best WordPress Themes


--- layout: page title: "Donate" description: "Have tools or something useful to donate?" header-img: "" ---
make.br is always looking for new tools. Whether it's your old drill press or a barely used CNC router that's been sitting in your garage for five years. We will find a way to make that tool usefull again!
If you have any equipment, tools or items that you would like to donate to makebr Email Lance@makebr.com.


{% for entry in menu.entries.all %}
{# This logic should _NOT_ Be in the template, but template tags don't know who the user is :( #}
{# A = all users, O = only signed out users, I = only signed in users (see models.py) #}
{# AND has a higher precedence than OR, so this expression is parsed like: #}
{# A or (anon and O) or (not_anon and I) #}
{% if entry.display_options == 'A' or request.user.is_anonymous and entry.display_options == 'O' or request.user.is_authenticated and entry.display_options == 'I' or request.user.is_staff and entry.display_options == 'S' or request.user.is_superuser and entry.display_options == 'S' %}


"The Internals Of" Online Books:
Jacek is active on StackOverflow (Apache Kafka Streams)
Practical understanding of Apache Kafka™ and Confluent Platform for administrators and operators (incl. architecture, installation, configuration, monitoring, and troubleshooting)


Woman fights off maniac attempting to swipe baby from stroller
by Ruth WeissmannA crazed creep tried to snatch a 10-month-old girl from a stroller as her mother walked down a Queens street, police said Saturday.
The woman was pushing the tot in a stroller near 43rd Ave. and 11th St. in Corona Park at about 10:30 p.m. Thursday when the deranged man ran up to her and grabbed the stroller, authorities said.
“Give me the baby!” the stranger screamed repeatedly at the mother as they wrestled for the infant.
The mom fought off the attacker, who ran off, police said.
Investigators believe the man was drunk when he demanded she hand over the child.
Images released by police show the would-be kidnapper dining at a nearby Roosevelt Ave restaurant just after the incident.


@* * Copyright 2023 HM Revenue & Customs * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *@ @(params: Map[String, Any]) @uk.gov.hmrc.hmrcemailrenderer.templates.helpers.html.template_main(params, "Your HMRC GMP checker calculation is ready") {
Your reference: @{params("fileUploadReference")}
The GMP checker calculation you submitted on @{params("uploadDate")} is now ready.
Go to the GMP checker to view it. You’ll need to sign in using the same Government Gateway details you used to submit the calculation.
For security reasons, we have not included a link with this email.
Your results will be deleted after 30 days.
So that you know this email is genuine, the last three digits of your ID are @{params("userId")}.
From HMRC GMP checker
}


10
1 For the law is only a shadow of the good things to come, not those realities themselves. The law can never make perfect those who draw near to God by means of the same sacrifices that the priests continually offer year after year.
2 Or else would not those sacrifices have ceased to be offered? In that case the worshipers, having been once cleansed, would have had no more awareness of sins.
3 But in those sacrifices there is a reminder of sins committed year after year.
4 For it is impossible for the blood of bulls and goats to take away sins.
5 When Christ came into the world, he said,
"You did not desire sacrifices or offerings.
Instead, you prepared a body for me.
6 You had no pleasure in whole burnt offerings or sacrifices for sin.
7 Then I said, "See, here I am to do your will, God, as it is written about me in the scroll."
8 He said as is stated above: "You did not desire sacrifices, offerings, or whole burnt offerings for sin, nor did you take pleasure in them"—sacrifices that are offered according to the law.
9 Then he said, "See, I am here to do your will." He sets aside the first practice in order to establish the second.
10 In the second practice, we have been dedicated to God by his will through the offering of the body of Jesus Christ once for all.
11 Indeed, every priest stands day by day serving, offering the same sacrifices, which, however, can never take away sins.
12 But after Christ offered one sacrifice for sins forever, he sat down at the right hand of God,
13 waiting until his enemies were humbled and made a stool for his feet.
14 For by one offering he has perfected forever those who are dedicated to God.
15 And the Holy Spirit also testifies to us. For first he said,
16 " 'This is the covenant that I will make with them
after those days,' says the Lord:
'I will put my laws in their hearts,
and I will write them on their minds.'"
17 Then he said, "No more will I remember their sins and acts of lawlessness."
18 Now where there is forgiveness for these things, there offerings are no longer made for sin.
19 Therefore, brothers, we have confidence to enter into the most holy place by the blood of Jesus.
20 That is the way that he has opened for us by means of his body, a new and living way through the curtain.
21 And because we have a great priest over the house of God,
22 let us draw near with a true heart in the full assurance of faith, having our hearts sprinkled clean from an evil conscience and having our body washed with pure water.
23 Let us also hold tightly to the confession of our confident expectation, without wavering, because God who has promised is faithful.
24 Let us consider how to motivate one another to love and good deeds.
25 Let us not stop assembling together, as some have done. Instead, encourage one another more and more, as you see the day drawing near.
26 For if we deliberately go on sinning after we have received the knowledge of the truth, a sacrifice for sins no longer exists.
27 Instead, there is only a certain fearful expectation of judgment, and a fierce fire that will consume God's enemies.
28 Anyone who has rejected the law of Moses dies without mercy at the testimony of two or three witnesses.
29 How much more punishment do you think anyone deserves who has trampled on the Son of God, anyone who has treated the blood of the covenant as something unholy, the blood by which he was dedicated to God—anyone who has insulted the Spirit of grace?
30 For we know the one who said, "Vengeance belongs to me; I will pay back." And again, "The Lord will judge his people."
31 It is a fearful thing to fall into the hands of the living God!
32 But remember the former days, after you were enlightened—how you endured a great agony of suffering.
33 You were exposed to public ridicule by insults and persecution, and you were participants with those who went through such suffering.
34 For you had compassion on those who were prisoners, and you accepted with joy the seizure of your possessions, knowing that you yourselves had a better and everlasting possession.
35 So do not throw away your confidence, which has a great reward.
36 For you need patience, so that you may receive what God has promised, after you have done his will.
37 "For in a very little while,
the one who is coming will indeed come and not delay.
38 My righteous one will live by faith.
If he turns back, I will not be pleased with him."
39 But we are not some of those who turn back to destruction. Instead, we are some of those who have faith for keeping our soul.


| DOSE: |
40 mg |
insufflated |
Amphetamines |
(ground / crushed) |
| |
200 mg |
insufflated |
Caffeine |
(ground / crushed) |
I do have ADHD, but I was diagnosed at such a late age that my parents thought that getting me any kind of medication was pointless and a waste of money because I had lived with it for so many years. I take no medications at all. I have tried everything from salvia to meth, but I prefer psychedelics over anything. Two years ago, I started high school in a very demanding prep school (I no longer go there). At that time I was a very strong athlete and had no experience or knowledge of drugs (boy has that changed). After having continuing trouble with the work load a friend, who was also having trouble, brought me some blue pills and gave them to me, and hence I discovered adderall. After taking the drug in pill form for a while, I discovered that it was much more effective to insufflate the crushed beads inside the pill. Since then I have taken the drug at least 40 times.
So I was sitting around in my room with a corner bag of 40mg adderall burning a hole in my pocket so I decided to go ahead and get wired for a couple hours. I had also purchased several weeks earlier a bottle of caffeine pills because I was experimenting with diphenhydramine and kept falling asleep after about 2 hours, and with an onset of one hour that wasnít enough trip time for me. So I took one of the pills which was 200mg of caffeine and crushed and cut it evenly into the adderall. I had previously crushed and chopped the adderall but to make sure everything was nice and tiny, I mushed and crushed the pile with my Zippo several times and then began to chop everything very carefully with a new razor blade for about 10min.
Through experience I have learned that it pays to make sure that everything is cut very fine. Adderall is especially hard to crush because it is many little beads. I find that by using a small Petri dish to contain the beads, because they tend to jump when you crush them, and using a beer bottle with a top on it works very well. You can also place them in a zip lock and use anything with a rounded end to mush them.  But in case you do I find that by putting a very small drop of water on the end of my finger and sucking it in relieves some of the pain.
I had a small pile which I began to cut into roughly 3inch lines about a centimeter wide. There were 16 lines. I snorted about half of the yellow, orange'ish mixture (the orange being the adderall the caffeine was yellow). I only took half because I wanted more for later in the night. It was 11:30 on the dot.
T+20min - Not really being tired before taking the mixture (Iím gonna call it speed for short, BUT it is a mixture) I started noticing everything was much more intense and vivid but not in the way a psychedelic would amplify color and shape, it was more like everything became sharper and clearer. The effects started picking up about 3 min after the first line. I sometimes describe Amphetamine and speed in general as having a sneaky onset. It was not at all an 'in your face' pickup. The effects were very suttle.  I was drawn into the racing game I was playing to the point where I was turning my entire body with the turn of the car. My heart rate sitting is about 65(Bpm) (beats per minute) and after checking it I was at 97(Bpm).
T+1hour - I became enraged and frustrated after losing to the game and after having several cursing bouts with my T.V I decided that it was better to do something else. I turned on some chili peppers, low, and put family guy on. Then began what I call 'The popping'. Every time I take any kind of stimulate that brigs me up (meth, adderall, large volumes of caffeine) I involuntary, and usually unknowingly pop air from underneath my tongue. It makes kind of a farting sound and is very annoying because I canít stop it. Iím not sure if this happens to many other people, but it will not go away. My jaw continually locks and unlocks so I get some gum to try and help it. I canít sit still and my hands are tremoring. Heart rate 109(Bpm)
T+1 1/2hours - There is something definitely different about this experience than that I have had with just taking normal adderall. Generally when I take the adderall by its self I become very focused at one task at a time, but now I am very flighty with my every action. I canít decide what to do and as soon as I pick something up I move onto something else. I am able to type but I tend to double or even triple hit the keys. I had a conversation with a friend and after talking to me for about 3min asked me if I had taken something. She stated that I was talking very rapidly and when I wasnít, she noticed the popping of my tongue. After listing to myself talk, I concerned that my speech was very rapid. I was also jumping from one subject to another, paying no real attention to anything she had to say. Heart rate 102(Bpm)
T+3hrs 50min - I just dosed the other half of the speed. I am having slight feelings of paranoia. I have checked my window about 5 times in the last 15 min. I keep looking out into the dark and seeing shadows moving. I know that there is nothing there but I canít shake the feeling that someone is watching me. I distract myself with more music. I had to turn on the light in my room because my eyes kept trying to re-adjust themselves every time I would look away from the computer. My eyes trying to readjust may be why I keep seeing the shadows move. This feels very similar to meth but without any hint of euphoria. Heart rate 113(Bpm)
T+4hrs 20min - I had to get up and walk around because my muscles where cramping. I still feel kinda paranoid but not near as bad as I was 30 min ago. My hands are still very twitchy and kinda clammy. I am wide awake and feeling really jumpy. Every noise I hear makes me jump and immediately start looking around. My muscles in my legs and low back are kinda sore but nothing a good stretch couldnít fix. Heart rate 102(Bpm)
All in all I believe adderall is a good drug but I think its practical uses, for studying and holding a longer concentration, out way its uses as a recreational drug. It is fun to an extent but it can be a very powerful tool to help get through all night projects and shit loads of homework.
Experience Reports are the writings and opinions of the individual authors who submit them.
Some of the activities described are dangerous and/or illegal and none are recommended by Erowid.


Skip to main content
Menu
Trip Tools
Trip Planner
NexTrip
Alerts
Find a Park & Ride
Find a Stop or Station
Schedules & Maps
Fares
Fares
Go-To Card
Pass Programs
Store
More
Carpool & Vanpool
Transit Link
Guaranteed Ride Home
Bicycle
News & Events
Help
How to Ride
Contact Us
Lost & Found
Accessibility
Languages
Transit Police
store
site search
Search
Search button
Sign in / create account
Sign Out
Edit Account
About Metro Transit
Transit Improvements
Facilities
Rider's Almanac
Use of Transit Property
Media Relations
Media Resources
Awards
Careers
Available Job Opportunities
Become a Bus Driver
Join the Transit Police
Policies
Social Media Policy
Privacy Policy
Code of Conduct
Title VI: Commitment to Fairness
Mission & Impact
Mission & Funding
Equity & Inclusion
Public Art
Outreach
Transit Oriented Development
Resources
Try the Metro Transit App
Advertise with Us
API Resources for Developers
Permit Application
Permit Application for Work Adjacent to Council-owned Rail Facilities
*
= Required
Applicant Information
First name
Last name
Agency/Company
Email
Phone
Fax
Address
City
State
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
District Of Columbia
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
State
Zip code
Project Owner Information
Same as applicant
First name
Last name
Agency/Company
Email
Phone
Fax
Address
City
State
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
District Of Columbia
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
State
Zip code
Project Information
Project name
Address
City
State
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
District Of Columbia
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
State
Zip code
Date and time pickers
Proposed construction start date
Proposed construction end date
Approximate value within 50’ of track
Installation type
Permanent
Temporary
Type of work
Check all that apply.
Utility Information
If applicable
Attachments
Required attachments include drawings of planned work, a map or layout showing affected Council property, and insurance certificates that comply with Exhibits A and B shown below


TCPhotosViewController
open class TCPhotosViewController : UIViewController
Undocumented
-
Undocumented
Declaration
Swift
override open func copy(_ sender: Any?)
-
Undocumented
Declaration
Swift
override open var canBecomeFirstResponder: Bool { get }
-
Undocumented
Declaration
Swift
override open func canPerformAction( _ action: Selector, withSender sender: Any?) -> Bool
-
Undocumented
Declaration
Swift
required public init?(coder aDecoder: NSCoder)
-
Undocumented
Declaration
Swift
override open func viewDidLoad()
-
Undocumented
Declaration
Swift
override open func viewDidAppear(_ animated: Bool)
-
Undocumented
Declaration
Swift
override open func viewWillLayoutSubviews()
-
Undocumented
Declaration
Swift
override open var prefersStatusBarHidden: Bool { get }
-
Undocumented
Declaration
Swift
override open func prefersHomeIndicatorAutoHidden() -> Bool
-
Undocumented
Declaration
Swift
override open var preferredStatusBarUpdateAnimation: UIStatusBarAnimation { get }
-
Undocumented
Declaration
Swift
open func configurePageViewControllerWithInitialPhoto(_ initialPhotoViewController: TCPhotoViewController)
-
Undocumented
Declaration
Swift
public init(dataSource: TCPhotoViewerDataSource?)
-
Undocumented
Declaration
Swift
public init( dataSource: TCPhotoViewerDataSource?, initialPhotoIndex: Int, delegate: TCPhotosViewControllerDelegate?)
-
Undocumented
Declaration
Swift
public init( dataSource: TCPhotoViewerDataSource?, initialPhoto: TCPhoto?, delegate: TCPhotosViewControllerDelegate?)
-
Undocumented
Declaration
Swift
public convenience init(withPhotos photos: [TCPhoto]?)
-
Undocumented
Declaration
Swift
open func configurePageViewControllerWithInitialPhoto()
-
Undocumented
Declaration
Swift
open func addOverlayView()
-
Undocumented
Declaration
Swift
open func updateOverlayInformation()
-
Undocumented
Declaration
Swift
open func setOverlay(hidden: Bool, animated: Bool)
-
Undocumented
Declaration
Swift
@objc open func didSingleTapWithGestureRecognizer(_ recognizer: UITapGestureRecognizer)
-
Undocumented
Declaration
Swift
@objc open func didPanWithGestureRecognizer(_ recognizer: UIPanGestureRecognizer)
-
Undocumented
Declaration
Swift
open func setCurrentlyDisplayed(_ viewController: TCPhotoContainer?, animated: Bool)
-
Undocumented
Declaration
Swift
open func newPhotoViewControllerForPhoto(_ photo: TCPhoto?) -> TCPhotoViewController?
-
Undocumented
Declaration
Swift
open func didNavigate(toPhoto photo: TCPhoto)
-
Undocumented
Declaration
Swift
@objc open func doneButtonTapped()
-
Undocumented
Declaration
Swift
@objc open func actionButtontapped(_ sender: UIBarButtonItem)
-
Undocumented
Declaration
Swift
open func displayActivityViewController( _ controller: UIActivityViewController, animated: Bool)
-
Undocumented
Declaration
Swift
open func displayPhoto(_ photo: TCPhoto?, animated: Bool)
-
Undocumented
Declaration
Swift
open func updatePhoto(atIndex photoIndex: Int)
-
Undocumented
Declaration
Swift
open func updatePhoto(photo: TCPhoto?)
-
Undocumented
Declaration
Swift
open func reloadPhotos(animated: Bool)
-
Undocumented
Declaration
Swift
open func dismiss( animated: Bool, isUserInitiated: Bool, completion: (() -> Void)? = nil)
-
Undocumented
Declaration
Swift
open func photoViewController(_ photoViewController: TCPhotoViewController, didLongPressWithGestureRecognizer recognizer: UILongPressGestureRecognizer)
-
Undocumented
Declaration
Swift
public func pageViewController( _ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController?
-
Undocumented
Declaration
Swift
public func pageViewController( _ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController?
-
Undocumented
Declaration
Swift
public func pageViewController( _ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool)


Worldwide News
Logout
Worldwide News
Search News
Add a Note
Delete Sections
Delete News
Graphs
Title:
Enter photo for the note:
Enter the date:
Write all text for the note:
Author:
Select the section:
Open this select menu
Sports
International
Politics
Financial
Art
Weather
Submit
Search for Section
Search
Name:
Delete
Search for Title
Search
Note:
Delete


13 references to RemoteCommand
System.Management.Automation (13)
engine\hostifaces\Connection.cs (2)
955
Internal.ConnectCommandInfo remoteCommand = remoteRunspace?.
RemoteCommand
;
1125
remoteCommand = remoteRunspace.
RemoteCommand
;
engine\remoting\client\remotepipeline.cs (4)
140
if (runspace.
RemoteCommand
== null)
145
_connectCmdInfo = runspace.
RemoteCommand
;
1067
((RemoteRunspace)_runspace).
RemoteCommand
!= null &&
1069
Guid.Equals(((RemoteRunspace)_runspace).
RemoteCommand
.CommandId, _connectCmdInfo.CommandId))
engine\remoting\client\remoterunspace.cs (4)
913
if (
RemoteCommand
== null)
928
if (
RemoteCommand
== null)
933
return new PowerShell(
RemoteCommand
, this);
2323
(_runspace.
RemoteCommand
!= null))
engine\remoting\commands\PushRunspaceCommand.cs (1)
1287
if (remoteRunspace.
RemoteCommand
!= null)
engine\remoting\commands\ReceivePSSession.cs (2)
901
if (remoteRunspace.
RemoteCommand
== null)
1214
remoteSessionRunspace.
RemoteCommand
!= null)


Output
Output angle format
Rotation matrix
Quaternion [x, y, z, w]
Axis-Angle {[x, y, z], angle (radians)}
Axis with angle magnitude (radians) [x, y, z]
Euler angles (radians)
Details
Please note that rotation formats vary.
For quaternions, it is not uncommon to denote the real part first.
Euler angles can be defined with many different combinations (see definition of Cardan angles).
All input is normalized to unit quaternions and may therefore mapped to different ranges.
The converter can therefore also be used to normalize a rotation matrix or a quaternion.
Results are rounded to seven digits.


Proof Of Verification For Proof Of Work
Transcript By: Bryan Bishop
Tags: Validation
Category: Conference
Proof of verification for proof of work: Miners must verify the signatures on bitcoin transactions
Kanta Matsuura
https://twitter.com/kanzure/status/1172142603007143936
extended abstract: http://kmlab.iis.u-tokyo.ac.jp/papers/scaling19-matsuura-final.pdf
History lesson
In the 90s, we had some timestamping schemes where things are aggregated into one hash and then it would be publicized later in the newspaper. This scheme was commercialized, in fact. However, the resolution of the trust anchor is very limited. It’s one day or half-day at best. When we want to verify, we need to visit the online-offline database maintained by a trusted party to get the merkle inclusion paths. They assume verification or validation is assumed to be infrequent.
Digital publicizing of super root hash
Later, we tried to digitize the publication case by using TV broadcasting. The resolution was better, but we need to assume that verification is still very infrequent. This still requires a trusted party to operate a database to help figure out merkle paths or merkle roots.
Avoiding a trusted third party
As you may all know, bitcoin and blockchain is an attempt at avoiding a trusted third party. As a result, we achieve public verifiability. This is good. However, due to the need of the p2p network, the resolution is somewhat intermediary between seconds and days, it’s maybe minutes or hours. I would like to point out that “verifiability” does not ensure that someone has really verified it. We just saw, we can verify it.
Research question
This is my research question.
Are we (any nodes) certain that naother node has really verified the transactions to be included in the block of the current concern? In this talk, we focus on the verification of the signatures on transactions. In order to fully verify the transaction, a node must also confirm that it is not an attempt of double-spending. This aspect is not explicitly considered here. However, it is worth noting that a node must visit the input transactions and confirm the public key correspds ot the recipients of the inputs in order to fully verify the signature.
This proposal is focused on the verification of signatures on transactions.
Possible stories of the problem
Rushing miners may skip the verification so that they are in a better position in the competition of getting rewards.  The risk may get more significant if scalability innovation dramatically increases the number of transactions in a block. Colluding nodes may also skip the verification for the purpose of attacks.
Proposal: Proof-of-verification
The proposal is called proof-of-verification.
Transactions are created the same way. Suppose you verify each transaction. Then, this verification automatically produces a proof-of-verification and anyone can verify these proofs. In theory, there are a wide variety of implementation options. I call this “explicit proof-of-verification” where we just append these proofs to the hash function for mining. Maybe we want to reduce the communication overhead; we could hash all of such proofs of verifications. For “implicit PoV”, we just append the proofs to the proof-of-work hashing. This can reduce the communication overhead, but maybe some of you are not happy to see that the hashing of the nonce is now in a different form.
Schnorr’s digital signature scheme
I’d like to revisit another classic, the Schnorr signature scheme. This slide describes key generation in Schnorr signature schemes. Finally, we need to do modular exponentiation of a random number. The verifier of the signature needs to reconstruct the exponentiated parameter r. The proof-of-verification here is the reconstruction of v in signature verification, of r in the signature generation. Therefore, this parameter can be reused as a proof-of-verification.
It should be noted that this modular exponentiation in the signature verification algorithm cannot be pre-computed. This is very important. I use this trick in the “protection of authenticated key-agreement protocols against a denial-of-service attack”, 1998. This is also a classic.
Applicability
In many digital signature schemes like DSA based on the hardness of the discrete logarithm problem, including EC-based implementations, we find such parameters that can be a proof-of-verification. This applies to DL-based multi-signatures as well. For example, in the case of a simple Schnorr multi-signature, the modular exponentiation can be a proof-of-verification. You can find some examples in my extended abstract, which I uploaded to my homepage on the web.
Computational cost for honest nodes
Are we going to have additional computational cost for honest nodes in this scheme? The answer is a resounding no. When we consider the nodes who generate transactions, there are no changes. The proof-of-overifiation mechanism is just naturally embedded. Nodes who generate a block, have a proprotional increase of component hashing (proportional to the number of the transaction outputs) but much smaller than the total PoW hashing, for both implicit PoV and explicit PoV.
In most of the hash functions that can handle arbitrary length input, they have similar structure to the construction invented by Merkle-Damgard. From this scheme, we can easily increase the computational cost but not necessarily large.
Nodes who are considering whether they agree to the newly reported block: if they are not interested in signature verification but interested only in the verification of the nonce, the use of the implicit PoV increases the computational cost; the node must verify the signature to compute the hash before verifying the validity of the nonce. SPV nodes who do not verify the signatures cannot verify the …..
Communication overhead
No changes in the case of implicit PoV for communication overhead, however there is a marginal increase for explicit PoV. I’ll skip this because of the time constraints here.
We might consider individually verifiable explicit PoV, where we append all the PoVs or the hash of each PoV, etc, if we are willing to accept larger communication overheads. A lite client would just verify some of the PoVs or something, and then if their transactions are fine then maybe they trust the miner.
Summary
Dishonest nodes may skip the verification of the signatures on transactions. Such behaviors may allow malicious transactions to be included in a new block, and reduce the …
Future work
-
Advanced experimental evaluation
-
Advanced theoretical evaluation, especially the SPV security model
-
Proof of full verification: extend PoV so that we can verify someone else has confirmed there are no double spends. Extending PoV so that we can verifyu someone else has done anti-malware operations on the scripts (like malware detection). Maybe more problems to be considered.


Welcome to CADL:
A Free and Open Source CAD Library
Unfortunately the page needs a whole ton load of JavaScript, and your browser seems to have it disabled.
Please enjoy this spinning cube while you go enable your JS!
[github.com/tylermaran/cadl]


Welcome to Smalltalk inside FlowCloud!
We still need you to log in to Smalltalk.
When using Smalltalk inside FlowCloud, you should be logged in to both services. Please click the button below to get Smalltalk working in FlowCloud. After logging in, you can return to the FlowCloud Tab and reload the page. Smalltalk will then run inside FlowCloud.
Click here to sign in


First Name:
Last Name:
Gender:
Male
Female
UVU ID:
Race:
Caucasian
Black
Hispanic
Asian
Other
Age:
Are you a US veteran?:
Create
Cancel
Student Registration
New Student


{% extends 'base.html' %} {% import 'bootstrap/wtf.html' as wtf %} {% block content %}
Make known what's unknown
copyright © 2019