All attendees, mentors, volunteers and sponsors at baltimore nodeschool events are required to agree with the following code of conduct. Organizers will enforce this code throughout the event to the best of our ability. We expect cooperation from all participants to help ensure a safe and welcoming environment for everyone.
Report any activity that violates this code of conduct to any volunteer, all of who have been instructed to bring all reports to the organizers immediately. Other perfectly acceptable methods of reporting harassment include:
baltimore nodeschool is dedicated to providing a harassment-free experience for everyone, regardless of gender, sexual orientation, disability, physical appearance, body size, race, or religion. In short, if you are harassing someone or if someone interprets your actions as being harassment, you will definitely be asked to stop and possibly asked to leave (without refund where applicable) at the discretion of the event organizers.
Two important notes:
baltimore nodeschool is dedicated to providing a harassment-free experience for everyone, regardless of gender, sexual orientation, disability, physical appearance, body size, race, or religion. Harassment of any kind will not be tolerated.

Participants asked to stop any harassing behavior are expected to comply immediately.
Sponsors are also subject to the anti-harassment policy. In particular, sponsors should not use sexualized images, activities, language, or other material. Sponsor staff (including volunteers) should not wear overtly sexualized clothing/uniforms/costumes or otherwise create a sexualized environment.
If a participant engages in harassing behavior, the organizers may take any action they deem appropriate, including warning the offender or expulsion (with no refund where applicable).
If you are being harassed, notice that someone else is being harassed, or have any other concerns, please contact an event volunteer or organizer immediately.
If you can't easily locate an event volunteer or organizer or if you are uncomfortable doing so, you can contact the lead organizer, Jason Rhodes, directly and discretely using any of the methods above "Need help?" section.
Event volunteers and organizers will be happy to help participants contact venue security or local law enforcement, provide escorts, or otherwise assist those experiencing harassment to feel safe for the duration of the event.
We expect participants to follow these rules at all *baltimore nodeschool events, including after-event socializing.
This code of conduct is liberally stolen from http://confcodeofconduct.com and http://jsfest.com/conduct.html


| Number of Classes | Line Coverage | Mutation Coverage | Test Strength |
|---|---|---|---|
| 2 | 72% | 50% | 100% |
| Name | Line Coverage | Mutation Coverage | Test Strength |
|---|---|---|---|
| AllowedMimetypeDecorator.java | 36% |
0% |
0% |
| MatchMimetypePredicate.java | 94% |
88% |
100% |


About
libfabric is a JavaScript library for peer-to-peer browser game networking. It's free, easy to use, and ridiculously scalable. It was developed with the goal of leveling the playing field for indie developers and small game studios who are limited in labour and money.
The cloud model
Traditionally, if you wanted to networked your browser game, you would have to use something like WebSockets and a cloud server.
This can get
- Expensive — Servers aren't cheap, and your costs can go up exponentially as your player base grows
- Complex — How do you keep your players synced up properly? How do you fight cheating? How do you avoid replication across your client and server codebases?
- Limiting — What if you wanted to build an MMO? Now you have to think about sharding and load balancing. Your game goes viral, suddenly your servers are overwhelmed and now you have to think about provisioning, when you could instead be working on your game!
Peer-to-peer
With WebRTC starting to see widespread support, and the standards settling, we can finally cut out the middle man and have players communicate directly over a mesh network!
But wait! Isn't that less scalable? Now 5 players need to send duplicate data across a total of 10 connections. 50 players over 1225 connections! No browser can handle that! That's where the magic comes in...
libfabric
Figuring out how to connect peers in a way that is fault-tolerant, performant, and infinitely scalable, is a monumental task. The algorithms libfabric uses are directly based on the PhD research of Yousef Amar whose solutions can be tuned to any game genre and mitigate cheating.
libfabric will dynamically reconnect peers in topologies optimising for:
- Virtual position
- Network conditions
- Reputation
- Longevity
- Additional custom metrics
libfabric additonally supports 8 different P2P topologies, ranging from superpeer to Delaunay triangulation-based topologies, and allows you to network behaviour to your liking, depending on the genre of game you're developing. If you're interested in the technical details, let's have a chat!


I am a PhD student on Complex Systems, an interdisciplinary field of sciences, working with networks in general. I've studied Complex Networks, Econophysics, algorithms and data structures. My background is in physics and statistical mechanics. I have skills on programming languages, machine learning algorithms, data mining and data visualization.


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Find the ideal recipe. recipeShuffle.io!
 Have you ever opened up your pantry to just a few ingredients and wondered what you could cook with them? We have the PERFECT application to help with taking those ingredients and suggesting a recipe based on what you have! Introducing recipeShuffle.io! The perfect recipe buddy!
Choose a cuisine:
Choose a diet:


mcc -o Acousto -W main:Acousto -T link:exe -d '/Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/MacApp/Acousto/for_testing' -v '/Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/main.m' Compiler version: 6.5 (R2017b) Dependency analysis by REQUIREMENTS. Parsing file "/Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/main.m" (Referenced from: "Compiler Command Line"). Deleting 0 temporary MEX authorization files. Generating file "/Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/MacApp/Acousto/for_testing/readme.txt". Generating file "/Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/MacApp/Acousto/for_testing/run_Acousto.sh". Packaging... Adding custom icon /Applications/MATLAB_R2017b.app/toolbox/compiler/Resources/default_icon.icns to /Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/MacApp/Acousto/for_testing/Acousto.app. Creating the bundle... Copying /Applications/MATLAB_R2017b.app/toolbox/compiler/maci64/setup.app to /Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/MacApp/Acousto/for_redistribution/MyAppInstaller_web.app. Copying /Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/MacApp/Acousto/for_redistribution/bundle.zip to /Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/MacApp/Acousto/for_redistribution/MyAppInstaller_web.app/Contents/Resources/bundle.zip. Copying /var/folders/l8/47z8pt_x6mxcr0fd2hh5cwfh0000gn/T/splash2918532159268157009.tmp to /Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/MacApp/Acousto/for_redistribution/MyAppInstaller_web.app/Contents/Resources/splash.png. Copying /Applications/MATLAB_R2017b.app/toolbox/compiler/Resources/default_icon.icns to /Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/MacApp/Acousto/for_redistribution/MyAppInstaller_web.app/Contents/Resources/installer.icns. Web based installer created at /Users/sjr/Dropbox (MIT)/Project_6336/Code & App Dec 4/MacApp/Acousto/for_redistribution/MyAppInstaller_web.app. Packaging complete. Elapsed packaging time was: 48 seconds.


ElasticSearch TestR
filters tokenizers analyzers
Test
| Analyzer |
{{test.title}} |
{{ token.position }}
{{token.token}}
|
| Filter |
{{test.title}} |
{{ token.position }}
{{token.token}}
|
Made with love during 2014 Xmas party by SubitoLabs team helped by Thomas Decaux
- Angular Javascript framework
- Angular UI layout
- ACE editor
- Continuous integration with Grunt tasks
- API with Php / Symfony2 framework / elasticsearch client
- Hosted in the cloud
- ElasticSearch version 1.4 (plugins ICU / Phonetic)
If you find a bug or have cool ideas, share it!
github.com/subitolabs/elasticsearch-play
Help us to spread the world!
The index is automatically saved when you run a test, you can bookmark this URL, it's your own index now!
We are loading the index, it will be automatically saved when you run a test, you can bookmark this URL, it's your own index now!
{{loadingIndexError}}


Welcome to Powerfield! Powerfield helps you with common needed Angular input directives.
This guide shows you how to start using Powerfield in your Angular projects.
To install the Powerfield package in your project using npm
, open a terminal/console window and enter the following command:
npm install powerfield
To import the installed package to your module, open your module file and edit it as follow:
import { PowerfieldModule } from 'powerfield';
@NgModule({
...
imports: [
...
PowerfieldModule,
],
...
})
...
Now that you've installed and imported Powerfield, you can use every provided directives directly in your component templates.
For example, you can use the powAutoWidth
directive as follow:
<input type="text" powAutoWidth [powExtraWidth]="20" />


Page by page breakdown Anti-Money laundering supervision prototype
Gov.UK / Gov Gateway
- Sign in with your Government Gateway account
- Sign up for Government Gateway account
- Government Gateway account confirmation
Business matching
- What's your business structure?
- Enter your business details (Limited company)
- Enter your business details (Soletrader)
- Enter your Self Assessment details (Partnership)
- Enter your business details (LP or LLP)
Pre-application
- Before you start
- What's your business structure?
- What's your company registration number (Incorportated)
- What's your type of business? (Unincorporated association or trust)
- What do you need to register? (Generates Progress Page)
- Which services does your business provide? (MSB only)
- Does your business have a Payment Services Regulations (PSR) registration number? (MSB only)
- You cannot continue with your application (MSB only)
- Check your answers
- When did the change happen?
- Your answers
Your registration
- Application progress
- Application incomplete
- Application not submitted
- Application pending
- Application approved
- Application rejected
- Application revoked
- Not registered
- Update your information (amend/vary application)
- Application updates made
- Application updates made (cant-submit)
- Application updates not submitted
- Application updates pending
- Application renewal
- Withdraw application
- Withdrawn
- De-register application
- De-registered
- Satisfaction survey
About the business
- What you need
- Is your business currently registered for anti-money laundering supervision?
- When will your business start activities which need to be registered for anti-money laundering supervision?
- Is your business registered for VAT in the UK?
- Is your business registered for Corporation Tax?
- Is this your registered office?
- Where is your registered office or main place of business?
- Your contact details
- Is this the right address to send you letters?
- What's your postal address?
- Check your answers
- When did the change happen?
- Your answers
Business activities
- What you need
- Other activities
- Total net profit
- Net profit from relevant activities
- Is your business a franchise?
- People in your business
- Do you have customers who live or work outside of the UK?
- Do you keep records of all your transactions with customers?
- Does your business have written guidance for staff on how to identify and report suspicious activity?
- Has your business registered online with the National Crime Agency?
- Does your business have a documented risk assessment policy and procedure?
- Does your business receive advice on Money Laundering Regulations and due diligence?
- Who is your professional adviser?
- Does this professional adviser also manage your tax affairs with HM Revenue and Customs (HMRC)?
- Check your answers
- Your answers
- Your answers (Variations)
Bank details
- What you need
- What kind of bank account does your business use?
- Account details
- Bank account registered
- Check your answers
- Your answers
- Your answers (Variations)
- Remove bank account
Responsible people
- Who must register as a responsible person
- What you need
- What's the name of this responsible person?
- Is {% include "includes/person.html" %} a UK resident?
- What is the nationality of {% include "includes/person.html" %}?
- What are the contact details for {% include "includes/person.html" %}?
- Is this {% include "includes/person.html" %}’s home address?
- How long has {% include "includes/person.html" %} lived at this address?
- Where was {% include "includes/person.html" %}’s previous home address?
- How long has {% include "includes/person.html" %} lived at this previous address?
- Where was {% include "includes/person.html" %}’s other previous home address?
- How long has {% include "includes/person.html" %} lived at this other previous address?
- What’s {% include "includes/person.html" %}’s position within the business?
- Is {% include "includes/person.html" %} the nominated officer for the business?
- When did this position start?
- Is {% include "includes/person.html" %} registered for VAT in the UK as a sole proprietor?
- Is {% include "includes/person.html" %} registered for Self Assessment?
- Does {% include "includes/person.html" %} have previous experience in these activities?
- Has {% include "includes/person.html" %} had training in anti-money laundering or counter-terrorism funding?
- Has {% include "includes/person.html" %} already passed the HMRC Money Laundering Regulations Fit and Proper test?
- Responsible person registered
- People you have registered
- Check your answers
- When did the change happen?
- Your answers
- Remove responsible people
Trading premises
- What you need
- Are you registering an agent's premises? (MSB only)
- What is your agent’s business structure? (MSB only)
- Your agent’s company details (MSB only)
- Your agent’s details (MSB only)
- Your agent's partnerships (MSB only)
- Is this your trading premises address?
- Trading premises details
- When will the business start trading from these premises?
- Is this a residential address?
- What does your business do at these premises?
- Premises registered
- Check your answers
- Check your answers - no premise
- Detailed answers
- When did the change happen?
- Your answers
- Remove trading premises
Accountancy Service Provider
- What you need
- Which services does your business provide?
- Are you registered with HMRC to handle other business’s tax matters?
- Check your answers
- When did the change happen?
- Your answers
Supervision
- What you need
- Has your business ever been registered with another supervising body?
- Is your business a member of a professional body?
- Has the business, or anyone in the business, ever been penalised by a professional body?
- Check your answers
- Your answers
Estate Agency Business
- What you need
- Which services does your business provide?
- Is this business registered with a redress scheme?
- Has the business, or anyone in the business, ever been penalised under the Estate Agents Act 1979?
- Has the business, or anyone in the business, ever been penalised by a professional body?
- Check your answers
- When did the change happen?
- Your answers
High Value Dealers
- What you need
- What will your business sell?
- Will you be buying or selling duty-suspended excise goods?
- How will you sell these goods?
- Has your business already accepted any cash payments of €15,000 or more?
- Are you able to automatically identify linked cash payments which come to €15,000 or more?
- Do you expect to receive cash payments over €15,000 from customers you've not met in person?
- What proportion of your turnover do you expect to come from cash payments over €15,000?
- Check your answers
- When did the change happen?
- Your answers
- Your answers (Variations)
Money service business
- What you need
- Which services does your business provide?
- How much throughput do you expect in the next 12 months?
- Do you have branches or agents in other countries?
- Can your systems identify linked transactions?
- Has your business applied for a Payment Systems Regulator (PSR) registration number?
- Does your business use an Intermediary Payment Service Provider?
- Do you transfer money without using formal banking systems?
- How many money transfers do you expect in the next 12 months?
- How many currency exchange transactions do you expect in the next 12 months?
- How many currency exchange transactions do you expect in the next 12 months?
- Where do you expect to send the largest amounts of money?
- Where do you expect to send the most transactions?
- Which currencies do you expect to supply the most to your customers?
- Check your answers
- When did the change happen?
- Your answers
- Your answers (Variations)
Trust or Company Service Provider
- What you need
- What kind of Trust or Company Service Provider are you?
- Which services does your business provide?
- Does your business use the services of another Trust or Company Service Provider?
- Check your answers
- When did the change happen?
- Your answers
Submit application
- Who is the business' nominated officer?
- Who is registering this business?
- What's your role within the business? (if not a responsible person)
- What's your name? (if not a responsible person)
- You need to register as a responsible person
- Declaration
- Amend declaration
- Confirmation
- Amend confirmation
- Variation confirmation
- Amend confirmation - No Fee
Payments
Secure messages (to design templates)
- Fail message
- Refusal being considered message
- Refuse message
- No longer considering refusal message
- Revocation being considered message
- Revoke message
- No longer considering revocation message
Renewals (under development)
Default questions for all
- What you need?
- Is your business involved in any other activities?
- How much total net profit did your business turnover in the last 12 months?
- How much total net profit did your business turnover in the last 12 months, from the following activities?
- Check your answers
MSB only
MSB + Money Transfer Only
- How many money transfers did you carry out in the last 12 months?
- In the last 12 months where did you send the largest amounts of money?
- In the last 12 months where did you send the most transactions?
- Check your answers
MSB + Currency Exchange Only
- How many currency exchange transactions did you carry out in the last 12 months?
- Which currencies did you supply the most, to your customers in the last 12 months?
- Check your answers
HVD only ( to follow )
- Fail message
- Refusal being considered message
- Refuse message
- No longer considering refusal message
- Revocation being considered message
- Revoke message
- No longer considering revocation message
Renewals (under development)
Default questions for all
- What you need?
- Is your business involved in any other activities?
- How much total net profit did your business turnover in the last 12 months?
- How much total net profit did your business turnover in the last 12 months, from the following activities?
- Check your answers
MSB only
MSB + Money Transfer Only
- How many money transfers did you carry out in the last 12 months?
- In the last 12 months where did you send the largest amounts of money?
- In the last 12 months where did you send the most transactions?
- Check your answers
MSB + Currency Exchange Only
- How many currency exchange transactions did you carry out in the last 12 months?
- Which currencies did you supply the most, to your customers in the last 12 months?
- Check your answers


Filter Design
Filter Design
Home
FIR/IIR
FIR
IIR
Window/Parks
Window
Parks-McClellan
Impulse Response
Magnitude Response
Phase Response
Pole-Zero
Impulse Response
Magnitude Response
Phase Response
Pole-Zero Plot
Filter Details
Filter Type
HighPass
Lowpass
Bandpass
Bandreject
Cutoff2:
Cuttoff1:
Order:
Window
Rectangular
Bartlett
Hann
Hamm
Blackman
Gaussian
Filter Type
HighPass
Lowpass
Bandpass
Bandreject
Fsamp:
Fcutoff:
Fstop:
Order Type
Autoorder
Setorder
Filter Type
Butterworth Lowpass
Butterworth Highpass
Butterworth Bandpass
Butterworth Bandreject
Fsamp:
Fpass:
Fstop:
Deltapass:
Deltastop:
Order Type
Autoorder
Setorder


ASTRO drops highlight medley for upcoming 6th mini album 'Blue Flame'
by danisurstASTRO is less than a week away from making their latest comeback!
On November 17 KST, ASTRO's agency Fantagio Music released the highlight medley teaser of the group's sixth mini album 'Blue Flame.' The album contains five new songs from the group, including title track "Blue Flame" and "When The Wind Blows," a song written and composed by member Rocky.
Meanwhile, 'Blue Flame' is set for release on November 20 at 6 PM KST.
Check out the highlight medley above!


#!/bin/sed -f # @(#)14apr89/31aug01 expand.sed by Greg Ubben / / !b # Change the text before a tab to # text<MARKER>text<TAB><8 blanks><TAB> # s/\([^ ]*\) /\1& /g # Reduce the text between the marker and the tab to less # than eight characters. We have to put in 8-(length MOD 8) # blanks, and this effectively does the modulo operation. :a s/[^ ]\{8\}/\a/g t a # The buffer is now: # text<MARKER><(length MOD 8) characters><TAB><expansion><extra blanks><TAB> # `-----------------------------------------' # Notice that the expansion is 8-(length MOD 8), so the # underlined part is exactly nine characters. That's how # we discard the extra blanks and the tabs. # s/\(.\{9\}\) * /\1/g # We have now: # text<MARKER><(length MOD 8) characters><TAB><expansion> # # so we discard everything between the marker and the tab # s/[^ ]* //g ### colorized by sedsed, a debugger and code formatter for sed scripts


notes: globally registered components (and all their subcomponents) are available in template of any root Vue instance (created after registration) locally registered components are not available in subcomponents


Rotation 9: Arduino
Project Description:
For the Arduino, we used a bread board attached to an arduino uno. At first, I found the pictures in the book hard to follow but eventually it became easier to read them. In order to make circuts, you had to connect the wires to both the power source on the arduino itself and the bread board positive and negative. This process was very fun to learn and it was my favorite electronic we did. For Arduino, we had to create our own code. I did ine by adding six more LED's than the original code had and I found it interesting seeing how the power works for each LED and how to get power into each one.


Because I am Batman
Batman operates in the fictional Gotham City with assitance from various supporting
characters, including his butler Alfred,police commissioner Gordon,and vigillant allies
such as Robin unlike most supeheroes.
Because I am Batman
Batman operates in the fictional Gotham City with assitance from various supporting
characters, including his butler Alfred,police commissioner Gordon,and vigillant allies
such as Robin unlike most supeheroes.
The One Man War On Crime
Batman operates in the fictional Gotham City with assitance from various supporting
characters, including his butler Alfred,police commissioner Gordon,and vigillant allies
such as Robin unlike most supeheroes.
The Bat Cave
Batman operates in the fictional Gotham City with assitance from various supporting
characters, including his butler Alfred,police commissioner Gordon,and vigillant allies
such as Robin unlike most supeheroes.
Copyright Batman Corp


John McAfee is a British-American computer programmer and businessman. John McAfee is a British-American computer programmer and businessman. He founded the software company McAfee Associates in 1987 and ran it until 1994.
John McAfee is a British-American computer programmer and businessman. He founded the software company McAfee Associates in 1987 and ran it until 1994.
John McAfee is a British-American computer programmer and businessman.>John McAfee is a British-American computer programmer and businessman. He founded the software company McAfee Associates in 1987 and ran it until 1994.
John McAfee is a British-American computer programmer and businessman. He founded the software company McAfee Associates in 1987 and ran it until 1994.
John McAfee is a British-American computer programmer and businessman. He founded the software company McAfee Associates in 1987 and ran it until 1994.
John McAfee is a British-American computer programmer and businessman. He founded the software company McAfee Associates in 1987 and ran it until 1994.
John McAfee is a British-American computer programmer and businessman. He founded the software company McAfee Associates in 1987 and ran it until 1994.
John McAfee is a British-American computer programmer and businessman. He founded the software company McAfee Associates in 1987 and ran it until 1994.
John McAfee is a British-American computer programmer and businessman. He founded the software company McAfee Associates in 1987 and ran it until 1994.
John McAfee is a British-American computer programmer and businessman. He founded the software company McAfee Associates in 1987 and ran it until 1994.
Join #CoinsGang family, not an average blockchain event
72 hour membership for
10 EUR/hour
Leave your wallet at home, we will take care of you.
See accommodationA La Carte Restaurant - Gloria Golf Resort
A La Carte Restaurant - Gloria Serenity Resort
Amphitheatre
Convention Center - Foyer
Convention Center
Double Room - Gloria Golf Resort
Family Suite - Gloria Golf Resort
General View
Single Room - Gloria Golf Resort


An electronic resource is any information source that the library provides access to in an electronic format. The library has purchased subscriptions to many electronic information resources in order to provide you with access to them free of charge. Computers and related electronic resources have come to play a central role in education. Teachers can benefit from these resources as well, by employing a series of useful tools. Electronic resources consist of data representing numbers, text, graphics, images, maps, moving images, music, sounds, etc., and programs of instruction sets.
Before the development of computer and internet technology, printed version of resources like books, journals, dictionaries, workbooks, etc. played a significant role in teaching and learning process. Therefore, of the different e-resources knowledge, e-resources development and preservation of them has become the need of this hour for teacher education. E-resources and e-learning are increasingly important to all aspects, and all levels of education.


Portfolio
Published Work
Home
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Resume
Portfolio
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Article 1
Staying Safe After Dark
Article 2
Standing Strong:The Gun Violence Needs to Stop
Article 3
What It's Like to be an Older Student
Article 4
Why We Need To Change Our Perspective
Article 5
Hidden Gems: What Inspires Me


|
| Last modified on Sat Jul 22 11:14:10 2023 UTC. | Improve this page |
My interest in system programming dates from the first moments when I started to play with computers. After learning FORTRAN in my first high school year, I wondered how does the refrigerator size box understand my programs and how is it able to run multiple jobs at the same time.
In 1985 I met Unix for the first time, running on a PDP-11 compatible mini-computer and, remarkable for those years, also accompanied by a tape with the Version 7 Unix source code.
Not only that I studied it thoroughly, but by 1989 I already had a functional C compiler ported on Motorola MC68000 microprocessor, and a good knowledge of the Unix kernel.
This knowledge of the context switching mechanism was put to test when I needed a multi-threaded scheduler running on Zilog Z80; later it was successfully used in a commercial product (a telex machine).
In the first years of the 2000s I was involved in a project running on the Intel i960 CPU, which also required a multi-threaded system.
To implement it, I chose eCos, which was the major RTOS available as open source and with a permissive license.
There were many remarkable things to be noted about eCos, but relevant for this story are two: first, at its core, it was written in C++, (a language that I met in 1990 when I ported the AT&T C++ translator on lots of Unix machines) and, second, that it came with an elaborate mechanism for managing project configurations, the eCos CDL, which used TCL scripts to define the configuration metadata.
By that time, vi
and make
appeared to be my friends, but the
experience of manually maintaining the make files turned into a
nightmare.
There were many embedded operating systems available by the time this project was initiated. However, the context I planned to use this embedded system was slightly more specific, i.e. as firmware for aviation instruments to be used in ultralight aircraft.
I started to experiment with aviation instruments several years before, and one determining factor on the decision was an article stating that for the design of aviation instruments, a framework is acceptable if it allows to complete the design within one day. Although this seems rather extreme, the idea is quite valid, and has important consequences.
The first consequence is that it promotes modular design, i.e. instead of a do-it-all box (a kind of a Swiss army knife like design), it is better to split the design into multiple independent modules, each performing a specific job.
The second consequence is that the framework should be very well structured, easily configurable and as light as possible, in order to run with limited resources on simple processors. By well structured I mean modular, object oriented design, favouring a high degree of code reuse, both between related projects, and between different hardware platforms.
After a long and detailed search, there were many partial solutions identified, but none was able to address all the requirements; so, based on my previous experience with multi-tasking systems, the decision to develop an in-house solution came naturally.
However, this decision was clouded from the very beginning by a doubt: “How do I know that my software really works as expected?” And “What is the best way to ensure that everything still works fine after I make some changes?”.
The decision for C++ was a tough one, and I’m convinced it raises a lot of questions and critics. However, I’m also convinced that it was a good decision, and, those who take the time to seriously consider it, will probably reach to the same conclusion.
First of all, by C++ I do not mean the full C++ implementation, but a limited subset: no real time typing, possibly no multiple inheritance, limited or no use of exceptions.
One common argument against C++ is the alleged performance penalty, but most of those who claim this have no compiler expertise, since for the subset of C++ that is needed for embedded applications the performance gain for C vs C++ is null for regular classes, and almost null for classes that require polymorphism.
Finally, the contributing factor on making the decision to use C++ came after reading Michael Barr’s book, Programming Embedded Systems in C and C++, that came with some good code samples written in C++.
In the second half of the 2000s decade, I was searching for a solution to write firmware for simple aviation instruments, running on AVR-class microcontrollers. With eCos too heavy for resource restrained devices, I decided to reimplement the Z80 scheduler on the Atmel AVR8 microcontroller, and in 2007 I had the first functional version of µOS++.
Central to the µOS++ design was the scheduler and the low-level
synchronisation primitives. Based on my previous Unix experience,
the main synchronisation primitives were inspired by the original
Unix sleep()
and wakeup()
primitives. Later they were changed
to better match the needs of multi-threaded systems,
but the basic functionality was more or less the same.
Given the bad experience I had with manually maintaining make files, it is no surprise that when I first met Eclipse, and discoverd CDT, I immediately started to searched for a solution to use it for µOS++.
The initial use of Eclipse CDT was quite difficult, since direct support for embedded toolchains was not available.
At the same time I started to play with the new Arm Cortex-M devices, which looked very promising, given how easy it is to implement the context switching code and the scheduler timer.
In 2009 the µOS++ was easily ported to ARM Cortex M3, during an evaluation phase for the next generation of the aviation instruments.
A more difficult and complex port of µOS++ was the Atmel AVR32 port, done in 2011. The difficulty was inherent to the hardware design of the AVR32 architecture, way less software-friendly than the ARM Cortex M3 (my personal feeling is that the ARM Cortex M3 design team included a software guy, with good knowledge of operating system intricacies, while the AVR32 architecture seems to be designed by a team where access for software guys was strictly forbidden).
But not everything was bad with the AVR32 experience: since this architecture uses 4 nested interrupts levels, now the µOS++ is able to properly handle nested interrupts.
Another significant addition to µOS++ was a mechanism to handle very fast interrupts, required for some Hard Real Time applications.
The initial enthusiasm of using Eclipse for building µOS++ applications was soon shaded by the difficulties of building and running tests in a scriptable environment.
It must be mentioned that Eclipse CDT advertises a way of running headless builds, but it proved unreliable, so the only way of running test was manually, as regular Eclipse projects, which was very inconvenient, to say the least.
The need for a second edition of µOS++ became obvious while using it for several commercial projects, and active work started in early 2013, after the XCDL (eXtended Components Definition Language) project, implemented in Python, become functional.
The major criticism of the first edition was the lack of support for Continuous Integration and Test Driven Development, requirements more and more expected for modern projects.
Starting from scratch, the first version of a unit testing infrastructure was implemented on the macOS synthetic platform.
The new system was renamed µOS++ SE as the Second Edition.
The µOS++ SE project wiki was created, initially hosted in the SourceForge project web space, then moved to a private domain due to major SourceForge shortcomings.
The major weakness was the limitation introduced by having the build configuration metadata as a Python code: it could be edited only manually, and not via a GUI based IDE, like, for example, the C/C++ settings in Eclipse CDT, which writes back the XML configuration file.
In April 2013 the general framework with functional startup code for STM32F1 and STM32F4 was implemented and tested on several development boards.
The project grew steadily, with the scheduler running on most STM32Fx cores (in pre-emptive mode), and on synthetic POSIX platforms (OS X and GNU/Linux, in cooperative mode). The sources compiled without warnings on GCC 4.7, GCC 4.8 and LLVM clang 3.2/3.3, in 32/64-bit variants, and a multitude of tests were running on OS X and Ubuntu.
The repository increased steadily, and in October 2013 it numbered more than 700 files, with more than 150K lines.
Acknowledging the need for a better Eclipse integration, in October 2013 the development was temporarily interrupted, with focus changed to GNU ARM Eclipse plug-ins, later rebranded as the Eclipse Embedded CDT.
The need for the third edition of µOS++ become evident after the experience with GNU ARM Eclipse plug-ins and the obvious need to better integrate µOS++ with Eclipse.
Work on µOS++ IIIe officially started with the creation of a new Git repository micro-os-plus and a new web.
In mid 2014 the documentation for the new ARM CMSIS Packs was released; some evaluations were performed with the Keil tools and an experimental package manager was implemented as an Eclipse plug-in; something derived from the CMSIS packages was considered to be a possible candidate for a distribution mechanism, but later the idea was dismissed, as unsuitable.
Also a more C-friendly approach was adopted, by adding C wrappers to the core C++ API.
Compared to the previous edition, testing was more thorough, using the CMSIS OS Validator and several stress tests. The majority of tests were performed via the synthetic POSIX platform on macOS and Linux; another fair share of the tests were performed via QEMU on the emulated STM32F4DISCOVERY, and only a very small were performed on physical hardware.
But, as the number of tests and their complexity grew, the problem of automating these tests became more and more critical.
Further research concluded that CMSIS Packs alone are not enough, and a more elaborate solution is necessary; initially the yotta tool was considered, and in late 2015 the first XCDL packs format based on yotta were tested.
In December 2015 the project was migrated to GitHub and restructured as XCDL packs, stored as separate sub-projects.
Later Arm decided to discontinue development for yotta, and another solution was needed.
In January 2016, the CMSIS++ repository was created, with a double intent: to act as a proposal for the next generation CMSIS, due in June 2016, and to serve as a portable API for the third edition of µOS++.
Unfortunately, the experience with CMSIS RTOS, CMSIS Drivers and other components was disappointing (to say the least), and further support for CMSIS was no longer considered appropriate.
In mid 2017 support for RISC-V was added and, for more portability, the use of the CMSIS name, associated with ARM, was discontinued.
While searching for a new solution to automate the tests for the µOS++ projects, I discovered npm as the industry standard package manager for JavaScript packages, and the npmjs.com as the hugely popular public repository, with millions of packages and billions of downloads.

On April 2017 the first release of xpm was ready, and packages managed by it were named xPacks.
In the initial design, the xPacks were intended to store C/C++ source files, and they worked just fine.
However, while xpm was used to automate testing, it was noted that
tests need to run with multiple toolchains, even multiple
versions of the same
toolchain, and these tools can also be defined as devDependencies
(development dependencies).
Building the multi-platform binary packages proved a very difficult task. The challenge was how to address the contradiction between having to build the very latest tools that run on very old versions of the corresponding operating systems (Windows, GNU/Linux and macOS).
The initial XBB solution was to start with a Docker image of an old release (Ubuntu 12, to also provide support for RedHat 7), and compile from sources the required new versions of the compilers and other development tools. Unfortunately this was not always possible directly, and an extra step was needed, to compile a bootstrap set of tools with some slightly older versions, and with them to compile the most recent versions.
This got more and more complicated, and the Docker image grew to 4-5 GB; the builds took many hours to complete, especially for the Raspberry Pi OS images.
The solution was functional, it eventually allowed to build all GCC toolchains, native and cross for Arm & RISC-V, but maintenance for the Docker images was close to mission impossible; after the second release it was evident that this is a dead end and a better solution is needed.
In the last months of 2022, work on a new XBB release started, and was completed in February 2023, with XBB v5.0.0.
The new solution was a big improvement, since it used completely standard Ubuntu 18 Docker images, without any customisations, and all modern tools were installed with xpm as existing binary xPacks.
This was a major milestone in the life of xPack project, since it proved two things:
The early µOS++ tests used the CMSIS OS validation suite, and there were several attempts to use a testing framework for other tests, but the results were unsatisfactory, since the frameworks required a lot of resources.
Further work was done with Boost UT, Catch2, GoogleTest, which resulted in functional packages that can be used in projects.
They were all functional, but quite heavy and not really suited for testing embedded projects; thus a lighter solution was considered.
This resulted in µTest++, released in February 2021, which was initially inspired by node tap.
In a later iteration it was reworked, and since v3.x (released in April 2022), it provides most of the Boost UT primitives, but with a lighter footprint.
With most of the tools in place, the @micro-os-plus/utils-lists project was selected as the first candidate to be fully tested using the new xPack tools.
The result was a very large set of tests, running both on the native platform (gcc and clang), and on lots of embedded platforms (Arm Cortex-M0 & M7, Cortex A15 & A72, RISC-V 32/64), running on QEMU. I doubt that there are many projects so thoroughly tested on so many platforms and build tools.
In April 2023 the documentation for the project was utils-list added, using a site generated by Doxygen and a custom CSS theme, resulting in a nice web site.
A major milestone was reached in July 2023: after updating the project to the more strict requirements of modern toolchains (GCC & clang), the tests that previously were performed manually in Eclipse were reworked to use CMake and the workflow was fully automated with xpm in order to allow the multi-platform tests to run in scriptable CI environments, like GitHub Actions.
The tests run natively on the synthetic POSIX platform (macOS & GNU/Linux) compiled with multiple GCC & clang versions, and on Cortex-M0+/M3/M7F, emulated by QEMU.
The next edition of µOS++ aims to further modularise the project in order to better test each separate module.
Work has already started to replace the monolithic repository with multiple xpm/npm packages.
…


| Module ID | kinoma/kpr/libraries/LowPAN/ | |||
|---|---|---|---|---|
| Description | Bluetooth 4.0 Low Energy stack | |||
| Whitelisted | Platform(s): | Variant(s): | ||
| Blacklisted | Platform(s): | Variant(s): | linux/bg3cd | |
| Storage Footprint (bytes) | Platform | Binary Size | ||
| mac | 123123123 | |||
| win | 678678678 | |||
| Dependencies | ID | Platform(s) | Variant(s) | |
| kinoma/kpr/extensions/fakextension/ | linux/aspen,linux/gtk | * | ||
| Related URLs | URL | Type | ||
| http://kinoma.com/develop/documentation/tutorials/ble-miselu-keyboard/ | Tutorial | |||
| http://kinoma.com/develop/documentation/tutorials/ble-griffin-pm/ | Tutorial | |||
| http://kinoma.com/develop/documentation/tutorials/ble-satechi-iq-plug/ | Tutorial |


Wizkid wins SoulTrain songwriting award for ‘Brown Skin Girl’
by The Eagle OnlineAfropop superstar, Ayodeji Balogun, aka Wizkid, has won SoulTrain’s Ashford and Simpson Songwriters’ award.
The News Agency of Nigeria reports that he won the award at the 2019 ceremony held on Sunday in Las Vegas, United States of America.
The “Ojuelegba” singer earned the award for his collaboration with Beyonce, Blue Ivy Carter and SaiNt Jhn on the sensational song of Beyonce’s “Lion Heart: The Gift” album.
Wizkid shares the award with other credited songwriters, including Beyoncé Knowles, Carlos St. John, Adio Marchant and Shawn Carter.
Others are Stacy BartheAnathi Mnyango, Michael Uzowuru, Ayodeji Balogun and Richard Isong.
NAN reports that this was the third time Wizkid had made the nominees’ list for the prestigious award.
He was nominated for Best Dance Performance in 2017 for his song “Come Closer” and in 2016 for the Rhythm and Bars category for his song “One Dance”.
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{% if has_powers %}Deactivate{% else %}Activate{% endif %} Super powers
{% if not has_powers %}
Are you sure you want to activate super powers?
Activating super powers would put you in super user mode where you can wipe off collected data.
{% else %}
Are you sure you want to deactivate powers?
{% endif %}


#include <featureoutputdata.h>
Inherits Serializable.
Inherited by FeatureCircle, FeatureLine, FeaturePoint, and FeatureRect.
Definition at line 19 of file featureoutputdata.h.
Public Member Functions | |
| const std::string | name () const |
| virtual ObjectID | objectID () const |
| void | setName (const std::string &name) |
Static Public Member Functions | |
| static float | invalidValue () |
Protected Member Functions | |
| FeatureOutputData (const FeatureOutputData &rhs) | |
| FeatureOutputData (ObjectID object_id) | |
| FeatureOutputData & | operator= (const FeatureOutputData &rhs) |
| FeatureOutputData | ( | ObjectID | object_id | ) | [protected] |
| object_id | the Serializable Object ID of this object |
| static float invalidValue | ( | ) | [static] |
| const std::string name | ( | ) | const |
The name of this object.
When printHeader() is called, this string is prepended to the names of the data members. For example, if the prefix was set to "LPUPIL_CAMA_", then the header for the data members might be logged as LPUPIL_CAMA_X, LPUPIL_CAMA_Y etc.
| virtual ObjectID objectID | ( | ) | const [virtual] |
| void setName | ( | const std::string & | name | ) |
Set the name that will be prepended to the text headers for this object.


Last updated: 2020-02-20
Checks: 7 0
Knit directory: MHWNWA/
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Note that any generated files, e.g. HTML, png, CSS, etc., are not included in this status report because it is ok for generated content to have uncommitted changes.
These are the previous versions of the R Markdown and HTML files. If you’ve configured a remote Git repository (see ?wflow_git_remote
), click on the hyperlinks in the table below to view them.
| File | Version | Author | Date | Message |
|---|---|---|---|---|
| Rmd | a3b88a8 | Robert William Schlegel | 2020-02-12 | Working through a full edit of the workflowr site. This will seque into a write up of the draft manuscript. |
| html | a7fbd91 | robwschlegel | 2019-08-28 | Build site. |
| Rmd | 59cf771 | robwschlegel | 2019-08-22 | Polished up the variable prep vignette |
| html | 826c73d | robwschlegel | 2019-08-15 | Build site. |
| html | 143b1a6 | robwschlegel | 2019-08-15 | Build site. |
| Rmd | 78f4977 | robwschlegel | 2019-08-15 | Re-publish entire site. |
| html | 20ae166 | robwschlegel | 2019-08-11 | Build site. |
| html | 19bea26 | robwschlegel | 2019-08-11 | Build site. |
| html | 2652a3a | robwschlegel | 2019-08-11 | Build site. |
| Rmd | adc762b | robwschlegel | 2019-08-08 | Re-worked the GLORYS data and propogated update through to SOM analysis figures for all experiments |
| html | f0d2efb | robwschlegel | 2019-08-07 | Build site. |
| Rmd | ed626bf | robwschlegel | 2019-08-07 | Ran a bunch of figures and had a meeting with Eric. More changes coming to GLORYS data tomorrow before settling on one of the experimental SOMs |
| Rmd | f27c261 | robwschlegel | 2019-08-06 | Working towards pipeline optimised for testing different SOM inputs |
| Rmd | 9a9fa7d | robwschlegel | 2019-08-01 | A more in depth dive into the potential criteria to meet for the SOM model |
| html | aa82e6e | robwschlegel | 2019-07-31 | Build site. |
| Rmd | 498909b | robwschlegel | 2019-07-31 | Re-publish entire site. |
| Rmd | 256a7f1 | robwschlegel | 2019-07-31 | Completed re-run on ERA 5 data. Working on combining anomalies. |
| Rmd | 3b805e4 | robwschlegel | 2019-07-30 | Completed anomaly runs on GLORYS variables |
| Rmd | bd987b4 | robwschlegel | 2019-07-29 | Completed run on anomalies with the exception of the three in the GLORYS product |
| Rmd | 51ed681 | robwschlegel | 2019-07-25 | Completed anoms for OISST |
| Rmd | 0b6f065 | robwschlegel | 2019-07-25 | Push before beginning to write code for loading entire obs/reanalysis products into memory for clim calculations |
| Rmd | 04a6bf3 | robwschlegel | 2019-07-24 | Creating new download script for obs/reanalysis products |
| html | 81e961d | robwschlegel | 2019-07-09 | Build site. |
| Rmd | 7ff9b8b | robwschlegel | 2019-06-17 | More work on the talk |
| html | c23c50b | robwschlegel | 2019-06-10 | Build site. |
| html | 028d3cc | robwschlegel | 2019-06-10 | Build site. |
| html | c61a15f | robwschlegel | 2019-06-06 | Build site. |
| Rmd | 49c6105 | robwschlegel | 2019-06-06 | Finished vector data packet pipeline |
| Rmd | 44ac335 | robwschlegel | 2019-06-06 | Working on inclusion of vectors into SOM pipeline |
| html | 6dd6da8 | robwschlegel | 2019-06-06 | Build site. |
| Rmd | 07137d9 | robwschlegel | 2019-06-06 | Site wide update, including newly functioning SOM pipeline. |
| Rmd | 990693a | robwschlegel | 2019-06-05 | First SOM result visuals |
| Rmd | 4838cc8 | robwschlegel | 2019-06-04 | Working on SOM functions |
| Rmd | 94ce8f6 | robwschlegel | 2019-06-04 | Functions for creating data packets are up and running |
| Rmd | 65301ed | robwschlegel | 2019-05-30 | Push before getting rid of some testing structure |
| Rmd | 0717c84 | robwschlegel | 2019-05-29 | Working towards getting the variable climatologies in order |
| Rmd | 2c3f68c | robwschlegel | 2019-05-28 | Working on the variable prep vignette |
| html | c09b4f7 | robwschlegel | 2019-05-24 | Build site. |
| Rmd | 5dc8bd9 | robwschlegel | 2019-05-24 | Finished initial creation of SST prep vignette. |
This vignette walks through the steps needed to create mean synoptic states during all of the MHWs detected in the previous vignette. These synoptic states consist of the variables in the ocean heat budget equation.
After first going through this entire process with the NAPA model output it became clear that this analysis should actually be run with obs/reanalysis data, and the NAPA model results may be compared against this as desired. To this end we will use the following variables as found in the following data products:
All of these products and variables have a shared daily resolution period from 1993 – 2018. The spatial resolutions for NOAA and ERA 5 are 1/4 degrees and the GLORYS data are 1/12 degree. The coordinates are slightly off between OISST and ERA 5 & GLORYS, with the coordinate system for NOAA being centred per pixel while the other two products have their coordinate system based on the northwest corner. In order to compare the OISST dataset to the other 1/4 degree products the lat values for OISST will have 0.125 added to them, and the longitude values will have 0.125 subtracted from them. The ERA5 data are hourly, so will need to be binned into mean daily values. In order to trade between efficiency and accuracy we will be converting everything to the 1/4 degree grid of the GLORYS/ERA 5 data at a daily temporal resolution.
Rather than go about performing all of the calculations below on piecemeal bits of data, we will load each variable into memory at once. The following code chunk shows how we create functions that load each of the variables from the different data products. We will then create and save this complete dataset for ease of use later on.
# The code used for this step may be seen in the 'code/workflow.R':
# https://github.com/robwschlegel/MHWNWA/blob/master/code/workflow.R
# The sections of the script used are:
# OISST processing, GLORYS processing, and ERA 5 processing
This is the one variable I was not able to source. The OAFlux product does have a net heat flux layer, but it ends in 2009. This is not long enough so we are going to create our own net heat flux layer by adding together the latent & sensible heat flux layers with the shortwave & longwave radiation layers from the ERA 5 product. When doing so we must ensure that the directions of the terms are matched correctly (i.e. that they all represent positive downward flux). Reading through the available meta-data I was not able to verify this, but it appears as though these area all positive downward flux terms.
# The code used to perform these steps may be seen in 'code/workflow.R' sction:
# ERA 5 processing
In the data packets we need to create for the SOM we will need to include anomaly values. In order to do this we need to first create daily climatologies for each variable for each pixel. To do so we will need to load all of the files and then pixel-wise go about getting the seasonal (mean daily) climatologies. This will be done with the same function (ts2clm()
) that is used for the MHW climatologies. One-by-one we will load an entire dataset (created above) into memory so that we can perform the necessary calculations. Hold on to your hats, this is going to be RAM heavy…
# The code used to perform these steps may be seen in 'code/workflow.R' sction:
# OISST processing, GLORYS processing, and ERA 5 processing
The last step before we can begin creating our data packets is to subtract our climatology data from our base data for each of the variables used in this study. We then save these large anomaly cubes to allow for easier synoptic state creation later on.
# The code used to perform these steps may be seen in 'code/workflow.R' sction:
# OISST processing, GLORYS processing, and ERA 5 processing
The next step is to create mean synoptic states for each variable during each of the MHWs detected in each region. To do this we simply load the combined anomaly dataset of all of our chosen variables and slice off only the bits we need during each of the observed MHWs. These slices are then meaned, pixel-wise, to create the synoptic states during each event.
# The code used to perform these steps may be seen in 'code/workflow.R' sction:
# OISST processing, GLORYS processing, and ERA 5 processing
With all of our mean synoptic states created it is now time to feed them to the Self-organising map (SOM).
sessionInfo()
R version 3.6.2 (2019-12-12)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 16.04.6 LTS
Matrix products: default
BLAS: /usr/lib/openblas-base/libblas.so.3
LAPACK: /usr/lib/libopenblasp-r0.2.18.so
locale:
[1] LC_CTYPE=en_CA.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_CA.UTF-8 LC_COLLATE=en_CA.UTF-8
[5] LC_MONETARY=en_CA.UTF-8 LC_MESSAGES=en_CA.UTF-8
[7] LC_PAPER=en_CA.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_CA.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] workflowr_1.6.0 Rcpp_1.0.3 rprojroot_1.3-2 digest_0.6.23
[5] later_1.0.0 R6_2.4.1 backports_1.1.5 git2r_0.26.1
[9] magrittr_1.5 evaluate_0.14 stringi_1.4.5 rlang_0.4.4
[13] fs_1.3.1 promises_1.1.0 whisker_0.4 rmarkdown_2.0
[17] tools_3.6.2 stringr_1.4.0 glue_1.3.1 httpuv_1.5.2
[21] xfun_0.12 yaml_2.2.1 compiler_3.6.2 htmltools_0.4.0
[25] knitr_1.27


Happiness
The secret of happiness is not in doing what one likes, but in liking what one has to do...
James M. Barrie
The secret of happiness is not in doing what one likes, but in liking what one has to do...


Security you can trust.
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from sklearn.feature_selection import VarianceThreshold, RFECV, SelectKBest
from sklearn.model_selection import StratifiedKFold
from sklearn.linear_model import LogisticRegression
import numpy as np
from melampus.preprocessor import Preprocessor
[docs]class FeatureSelector(Preprocessor):
[docs] def variance_threshold(self, p_val=None):
'''
It removes all features whose variance doesn’t meet some threshold. By default, it removes all zero-variance features
:param p_val: p_value for defining the threshold. default value: 0.8
:return: transormed array of removed correlated features
'''
p = 0.8
if p_val:
p = p_val
thres = p * (1 - p)
sel = VarianceThreshold(threshold=thres)
try:
return sel.fit_transform(self.data)
except Exception as e:
raise Exception("feature_selector-variance_threshold: EXCEPTION: {}".format(e))
return df
return relevant_feats
[docs] def rfe(self):
'''
Select the features that contribute most to the target variable.
Slow method. It should be used for small number of features (less than 20)
:return: the selected features
'''
logreg = LogisticRegression()
rfecv = RFECV(estimator=logreg, cv=StratifiedKFold(), scoring='accuracy', n_jobs=-1)
try:
rfecv.fit(self.data, self.outcomes)
k = rfecv.n_features_
return SelectKBest(k=k).fit_transform(self.data)
except Exception as e:
print("feature_selector-rfe: EXCEPTION: {}".format(e))
pass


\defgroup uip The uIP
TCP
/IP stack
@{ *
uIP is an implementation of the
TCP
/IP protocol stack intended for
small 8-bit and 16-bit microcontrollers. *
uIP provides the necessary protocols for Internet communication,
with a very small code footprint and RAM requirements - the uIP
code size is on the order of a few kilobytes and RAM usage is on
the order of a few hundred bytes.
\file
The uIP
TCP
/IP stack code.
\author Adam Dunkels
<EMAIL_ADDRESS>@}


Preparation time
less than 30 mins
Cooking time
1 to 2 hours
Serves
Serves 4
Chicken noodle soup is a great recipe: it's easy to make, uses up leftovers, and feels supremely comforting to eat.
Remove the remaining meat from the chicken carcass and place it in the fridge.
Heat 2 litres/3½ pints of water up to a simmer in a large, deep saucepan.
Place the roasted chicken carcass, along with any remaining cooking juices, into the hot water and add the carrots, whole leeks, onion, bay leaf, peppercorns and stock cube.
Bring the stock up to the boil, reduce to a simmer and cook for an hour. Skim the stock from time to time to remove any scum that forms on the top.
After cooking the stock for an hour, place a colander over a large pan. Pick out the chicken carcass from the stock and place it into the colander. Carefully pour the rest of the stock through the colander into the pan.
Return the strained stock to the heat, and bring back up to a simmer.
Meanwhile, tear the reserved roast chicken into small pieces.
Add the noodles to the chicken stock and cook for a minute before adding the chicken, bok choi, spring onion, sweetcorn and soy sauce to the pan. Cook for 2-3 minutes, then stir through the chopped coriander.
Divide between four bowls and serve immediately.


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Namespaces | |
| namespace | impl |
Classes | |
| class | andoyer |
| Point-point distance approximation taking flattening into account. More... | |
| class | ellipsoid |
| Defines ellipsoid values for use in distance calculations. More... | |
| class | haversine |
| Distance calculation for spherical coordinates on a perfect sphere using haversine. More... | |
| class | ll_point_segment |
| Strategy functor for distance point to segment calculation. More... | |
| struct | pythagoras |
| Strategy functor for distance point to point: pythagoras. More... | |
| class | vincenty |
| Distance calculation formulae on latlong coordinates, after Vincenty, 1975. More... | |
| struct | xy_point_segment |
| Strategy functor for distance point to segment. More... |
|
October 14, 2008 |
Copyright © 1995-2008 Barend Gehrels, Geodan Holding B.V. Amsterdam, the Netherlands Copyright © 2008 Bruno Lalande, Paris, France |


{%load static%}
Hello, {{user}}
{%else%} Login| {%if user.is_authenticated %} {%else%} Add User {%endif%} | User | Add Goal | Weekly Goals | Daily Goals | Verify | Done |
|---|---|---|---|---|---|---|
| {{user}} | + | {%for goal in user.get_weekly_goals%}+ {{goal}} | {{goal.id}} {%endfor%} |
{%for goal in user.get_daily_goals%}+ {{goal}} | {{goal.id}} {%endfor%} |
{%for goal in user.get_verified_goals%}+ {{goal}} | {{goal.id}} {%endfor%} |
{%for goal in user.get_done_goals%}+ {{goal}} | {{goal.id}} {%endfor%} |


#!/bin/sh APPPATH=“${0%/*}” APPFULLPATH=“`cd "$APPPATH" 2>/dev/null && pwd`” RUNPATH=“$@”
if [ “$1” = “–ruby” ]; then
$APPFULLPATH/#{NAME}-bin "$@" exit
fi
while getopts mhv OPTION do
case $OPTION in h) printf "Usage: #{NAME} [options] (app.rb or app.shy)\n" printf "\t-m\tOpen the built-in manual.\n" printf "\t-v\tDisplay version info.\n" exit ;; m) RUNPATH="$APPFULLPATH/command-manual.rb" ;; v) cat "$APPFULLPATH/VERSION.txt" exit ;; esac
done
if [ “$1” = “” ]; then
open -a "$APPFULLPATH/../../../#{APPNAME}.app"
else
open -a "$APPFULLPATH/../../../#{APPNAME}.app" "$RUNPATH"
fi


Q3CString_EmptyData |
( TQ3Status ) Q3CString_EmptyData ( char * _Nullable * _Nonnull str );
Releases the memory allocated by a previous call to
Q3CString_GetString.
After the string data has been freed, the str parameter
will be reset to nullptr.
- str
- The string data to release.
Q3CString_GetLength |
( TQ3Status ) Q3CString_GetLength ( TQ3StringObject _Nonnull stringObj, TQ3Uns32 * _Nonnull length );
Get the length of a string object.
Returns the number of bytes required to store the character
data in the string object. The length returned does not
include the terminating NUL byte.
- stringObj
- The object to test.
- length
- The number of bytes needed for character data.
Q3CString_GetString |
( TQ3Status ) Q3CString_GetString ( TQ3StringObject _Nonnull stringObj, char * _Nullable * _Nonnull str );
Return the character data of a string object.
The data returned must be released with a subsequent call to
Q3CString_EmptyData. The data returned will be NUL terminated.
The str parameter is overwritten, and so must not point to an
existing string or a memory leak will occur. If the value of
the str parameter is not nullptr, a warning will be posted.
- stringObj
- The object to query.
- str
- Receives a pointer to the character data.
Q3CString_New |
( TQ3StringObject _Nonnull ) Q3CString_New ( const char * _Nonnull str );
Create a new C string object.
Creates a string object based on a NUL terminated string. The
string data is copied, and so str can be disposed of after
creating the object.
- str
- The C string to copy.
Q3CString_SetString |
( TQ3Status ) Q3CString_SetString ( TQ3StringObject _Nonnull stringObj, const char * _Nonnull str );
Set the character data of a string object.
Assigns a C string to the string object. The string data is copied
and so str can be disposed of after this call.
- stringObj
- The object to update.
- str
- The string to assign to the object.
Q3String_GetType |
( TQ3ObjectType ) Q3String_GetType ( TQ3StringObject _Nonnull stringObj );
Returns the type of a string object.
Returns kQ3StringTypeCString, or kQ3ObjectTypeInvalid if the
object type is unknown.
- stringObj
- The object to test.
© 1999-2023 Quesa Developers (Last Updated 1/27/2023)


150 grams of bitter dark chocolate 150 grams of butter "Tnuva" 2 eggs 2 egg yolks Half a cup of sugar 0.25 cup flour Pack of white chocolate preparation method: Preparation: 1. Heat oven to 180 degrees 2. Melt the chocolate and butter in a large bowl. 3.Add the eggs, yolks and sugar to the chocolate and butter mixture and stir well. 4. Add the flour to the mixture and stir until you can not see the flour. The more mixed the less the souffle tastes. 5. Pour the mixture into greased muffins (preferably silicone molds) and place in the oven For only 9 minutes! (This step is very critical too thin and it will just be a normal cake) 6. Remove the souffl? carefully from the baking pan and sprinkle with a little powdered sugar. With appetite!


| Path: | website/index.txt |
| Last Update: | Fri Oct 17 14:22:35 -0400 2008 |
h1. rubypulse
h1. &x2192; ‘rubypulse‘
h2. What
I‘m not betting there will be too much interest in this code so most of this page is a skelton, but feel free to email me if you‘ve got questions.
h2. Installing

sudo gem install rubypulse

h2. The basics
h2. Demonstration of usage
h2. Forum
"groups.google.com/group/rubypulse":http://groups.google.com/group/rubypulse
TODO - create Google Group - rubypulse
h2. How to submit patches
Read the "8 steps for fixing other people‘s code":drnicwilliams.com/2007/06/01/8-steps-for-fixing-other-peoples-code/ and for section "8b: Submit patch to Google Groups":drnicwilliams.com/2007/06/01/8-steps-for-fixing-other-peoples-code/#8b-google-groups, use the Google Group above.
TODO - SVN or GIT instructions
The trunk repository is svn://rubyforge.org/var/svn/rubypulse/trunk for anonymous access.
OOOORRRR
You can fetch the source from either:
<% if rubyforge_project_id %>

git clone git://rubyforge.org/rubypulse.git

<% else %>
TODO - You can not created a RubyForge project, OR have not run rubyforge config yet to refresh your local rubyforge data with this projects’ id information.
When you do this, this message will magically disappear!
Or you can hack website/index.txt and make it all go away!!
<% end %>

git clone git://github.com/GITHUB_USERNAME/rubypulse.git

TODO - add "github_username: username" to ~/.rubyforge/user-config.yml and newgem will reuse it for future projects.

git clone git://gitorious.org/rubypulse/mainline.git

h3. Build and test instructions

cd rubypulse rake test rake install_gem

h2. License
This code is free to use under the terms of the MIT license.
h2. Contact
Comments are welcome. Send an email to "FIXME full name":FIXME email via the "forum":groups.google.com/group/rubypulse


{% extends "base.html" %} {% import "bootstrap/wtf.html" as wtf %} {% block title %}Flasky - Login{% endblock %} {% block page_content %}
New user ? Click here to register


Encapsulate and abstract for future proof software
Change is coming
Change will always affect your software. No matter the domain, the uses cases, the developers, or even the users. Change is the one constant in software development.
This is one of the first topics addressed by the authors of the renowned Head First Design Patterns. They approach it as one reason for the importance of design patterns. As they say in the book:
“No matter how well you design an application, over time an application must grow and change or it will die.”
Along with design patterns, the authors also introduce a bundle of design principles. While the patterns are outside the scope of this article, I want to focus on the first two principles:
- Encapsulate what varies.
- Program to interfaces, not implementations.
The first principle is the basis for all design patterns, and most of them also make use of the second one. The first one dictates that if you have code that keeps changing, pull it out and isolate it. The second principle complements this through the use of interfaces.
Now, a word of caution. As Vasiliy Zukanov explained in this comment, this “interface” does not refer to the interface construct seen in some OOP languages. Well, it can refer to it, but it has a broader meaning. Here, “interface” refers to a component’s external point of interaction. It is what other components can use to interact with the specific component. So, this “interface” can be an interface, an abstract class, a normal class or even a function. It can be anything as long as it serves as a communication point with the component. With it, we need not know the inner details of the component. It lets us abstract from the component’s implementation. So, whenever there’s a change, you only need to refactor the corresponding code. The outside code will never even notice it. The purpose of the principle is indeed to focus on what the code does, and not how it does it.
A ticking time bomb: Android Libraries
The Android open source community is awesome. No matter the complexity of what you need, a library implementing it is likely to exist already. This not only makes our jobs easier but also lets us focus on the true business logic problems.
Yet, things change (I know). Libraries become obsolete. Sometimes, new versions introduce breaking changes. Requirements change, and we no longer need a library. External changes force us to change our code. We’re left with a huge codebase full of deprecated dependencies or code built around them. This is where the design principles mentioned above come in handy.
Suppose that you need to store/retrieve a Configuration object on/from disk in JSON format. You have experience with Gson from previous projects, so you use it. You defined Configuration as:
data class Configuration(
val aNumber: Int,
val somethingWithCharacters: String)
You first start by creating an abstraction for Gson. Here, a simple class will do (unless you’re using Clean Architecture: in that case, you would probably have this class implement an interface):
/** Imports */
class ConfigurationStorageHandler {
private val gson: Gson
// ...
fun read(): Configuration {
val jsonConfiguration = /** Get json string from disk */
return gson.fromJson(jsonConfiguration, Configuration::class.java)
}
fun write(configuration: Configuration) {
val jsonString = gson.toJson(configuration)
/** Store jsonString on disk */
}
}
Then, you use it along with the rest of your product:
class MagicBusiness constructor(
private val configurationStorageHandler: ConfigurationStorageHandler
) {
// ...
fun doMagicAccordingToConfig() {
val config = configurationStorageHandler.read()
/** use config for magic */
}
fun saveConfigForLateNightMagic(configuration: Configuration) {
/** 10x programmer magic */
configurationStorageHandler.write(configuration)
}
}
class MagicActivity : AppCompatActivity() {
// ...
override fun onCreate(savedInstanceState: Bundle?) {
// ...
val storageHandler = ConfigurationStorageHandler()
val magicBusiness = MagicBusiness(
configurationStorageHandler = storageHandler
)
// ...
}
// ...
}
Time goes by, and your abstraction gets sprinkled throughout your code. One day, you come across this hip library called Moshi, that also deals with json parsing. Moshi seems to be faster, more flexible, and works like a charm when used together with Retrofit. You got to use it.
Luckily, you saw this coming. You use Gson everywhere in your code. But since you have it encapsulated, you can swap it with Moshi almost for free!
Simply replace Gson with Moshi:
/** Imports */
class ConfigurationStorageHandler {
private val moshi: Moshi
// ...
fun read(): Configuration {
val jsonConfiguration = /** Get json string from disk */
val adapter = moshi.adapter(Configuration::class.java)
return adapter.fromJson(jsonConfiguration)
}
fun write(configuration: Configuration) {
val adapter = moshi.adapter(Configuration::class.java)
val jsonString = adapter.toJson(configuration)
/** Store jsonString on disk */
}
}
And you’re done — all the code that used Gson now uses Moshi. Just by changing this class.
You can later change libraries again. You can even ditch json and use something else. As long as you create the proper abstraction (which is actually the hard part), you’re good to go. Your code is now robust and flexible, and your future self will be proud.
Note that the codebase is further improved by injecting the
dependencies. Even if you don’t use Dagger or any other
framework — the dependency injection itself is what matters.
This way, you keep your classes decoupled and set yourself up
for easy testing. Here, if you inject a mock or fake storage
handler, you can test MagicBusiness
in isolation.
Conclusion
“Abstractions Live Longer than Details“ — The Pragmatic Programmer, chapter 7, page 209
I showed you an example of how you can create boundaries around your code. These boundaries protect your code from external dependencies. Still, it goes much deeper than this. Recipes like design patterns or architectural patterns such as Clean Architecture are great. They’re battle tested, and their usefulness is more than proven. Using these design principles is one reason for their greatness. You can (and should!) apply these design principles even if you don’t use external code. Use them with caution, though. We know that design principle abuse increases code complexity. It’s a commitment you must consider, and balance with care.


--- title: 'Take A Sad Plot And Make It Better 2.0 - Graph 1' author: Ajinkya Shinde date: '2018-06-13' slug: sad-plot-better-1 categories: - R tags: - ggplot2 description: Desc hacker_news_id: '' lobsters_id: '' meta_img: /images/image.jpg ---
meanGDP_country <- gapminder %>%
group_by(country,continent) %>%
summarize(meanGdp=mean(gdpPercap))
ggplot(meanGDP_country,aes(x=meanGdp)) + geom_histogram(binwidth=500,fill="white",
color="black") +
coord_cartesian(xlim=c(0,30000))+
facet_wrap(~continent)+
xlab("Mean GDP across countries within continent")
This is a histogram used to measure the spread of GDP across countries within each continent
glimpse(meanGDP_country)
## Observations: 142
## Variables: 3
## $ country <fct> Afghanistan, Albania, Algeria, Angola, Argentina, Au...
## $ continent <fct> Asia, Europe, Africa, Africa, Americas, Oceania, Eur...
## $ meanGdp <dbl> 802.6746, 3255.3666, 4426.0260, 3607.1005, 8955.5538...
The Data consists of nominal/qualitative variables - country and continent and the quantitative variable is meanGDP which is calculated as the mean of GDP across a country in a given continent
This dataset can be used for census analyst who wants to see the GDP growth across the continents from the data set
In the above graph, we are trying to see the spread of gdp across countries within each continent. The facet_wrap divides the graph across Continent. In each of the individual graph,individual bar line represents mean of GDP across the countries. The visualization can be used to get the sense of skewness/type of distribution across the continent.
We try to see the skewness and get a general idea of distribution of GDP across each of the continent. A newbie can say that the graph for Europe looks normally distributed and should look to get basic sense of distribution.
We can use discrete color palette to differentiate among the different ordinal variables. Also , the distinct color scheme also portrays that the distribution for each continent is independent of each other.
Below is the variation of the above graph. A ridge line chart below can be used to compare the distributions amongst themselves to see which how the continents perform against each other.
library(ggridges)
ggplot(meanGDP_country,aes(x=meanGdp,y=continent,color=continent)) +
geom_density_ridges(scale = 0.9)+
scale_color_hue(l = 45)+
xlab("Mean GDP across countries within continent")+
ylab("Continent")
## Picking joint bandwidth of 1730
I thought of showing countries in a single graph with graph being created for each continent. Thus, I created meanGDP_country variable to store the dataset in that format.Finally, used GGPlot2 to create the histogram.


By using the scrollbars the viewport inside zCanvas can be panned.


 Companies understandably want to take advantage of social media and its potential to help grow their business. Social media optimization or SMO is the practice of managing and controlling a social media campaign/plan to maximize awareness and growth, and to drive more traffic to a website. Most well-known companies (such as Amazon or Nordstrom’s) utilize SMO strategies for their site.
The term social media optimization was originally coined back in 2006 in an article by author and marketing strategist Rohit Bhargava. He outlined five rules that he has since updated after Twitter and other similar platforms became popular. Some of Rohit’s SMO rules focus on creating quality content that people actually want to see and share that they don’t consider to be spam. He also suggests making what you are posting easy for people to share across social media platforms. It’s possible to do this using quick sharing and bookmarking options that are readily available. Companies can offer contests with rewards on social media to users who leave a comment on their page. One of the key rules Rohit discusses is allowing other users to take and remix content to make it their own. The implementation of these various tactics have changed the way users experience social media.
SMO tools can help you share your content or posts faster and with less hassle by linking all your social medias together. Some media managements sites like Loomly, Hootsuite and Sprout Social offer easy to use calendars and figure out the optimum time of day to share your post depending on your businesses factors. They also can simultaneously send out all your post or spread them out and post them at specific times. This ensures that the target audience is exposed to your content. Companies that stick to SMO strategies have a better chance at success.


{% extends "layout.html" %} {% block body %}
You can upload to {{ domain }} with our bash script.
You can upload to {{ domain }} with sharex via importing this integration config.
Ditto, there is an Android app (note it's originally for sr.ht but can be pointed here.)
Get in touch if you have any more ideas worth hosting here.


Tien Le's Survey Form
Survey Form
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When two object collide and stick together we say the collision is perfectly inelastic. In those situations the equations for conservation of momentum simplify a bit.
$$m_1u_1 + m_2u_2 = m_1v+m_2v$$ $$m_1u_1 + m_2u_2 = \left(m_1+m_2\right)v$$Objects can also start together and separate, like in an explosion.
$$\left(m_1+m_2\right)u = m_1v_1 + m_2v_2$$
Example: A 100.0 kg goalie throws a 1.1 kg soccer ball while jumping forward at 3.2 m/s. If the ball
flies out of the goalie's hands at 10.0 m/s what speed is the goalie?
solution
$$\sum p_{\mathrm{initial}} = \sum p_{\mathrm{final}}$$ $$\text{goalie holding ball = goalie + ball}$$ $$(m_{1}+m_{2})u=m_{1}v_{1}+m_{2}v_{2}$$ $$(100.0+1.1)(3.2)=(100.0)v_{1}+(1.1)(10.0)$$ $$323.52=(100.0)v_{1}+11$$ $$3.13 \, \mathrm{\tfrac{m}{s}} = v_{1}$$2-D Conservation of Momentum
Momentum is a vector. It has a direction and a magnitude. We can solve for the horizontal and vertical components separately just like how we solved 2-d Motion problems. Although in this case there isn't a time variable to link up the vertical and horizontal equations.
Horizontal: A
pink hexagon and a
cyan triangle collide. Before the collision the hexagon has a mass of 5.20 kg and is moving to the right
at 2 m/s. The cyan triangle is moving to the left at 1 m/s and has a mass of 1.17 kg. If the triangle bounces
off the hexagon at 2.92 m/s to the right what is the horizontal velocity of the hexagon? (ignore the vertical
information)
Vertical: Lets take a look at the vertical aspect of the pink hexagon and cyan triangle collision. Before the collision the hexagon has a mass of 5.20 kg and is not moving up or down. The final vertical velocity of the hexagon is 0.23 m/s down. The final vertical velocity of the triangle is 0.67 m/s up. What is the triangle's initial vertical velocity?
solution
$$\sum p_{\mathrm{initial}} = \sum p_{\mathrm{final}}$$ $$\text{hexagon + triangle = hexagon + triangle}$$ $$m_{1}u_{1}+m_{2}u_{2}=m_{1}v_{1}+m_{2}v_{2}$$ $$(5.20)(2)+(1.17)(-1)=(5.20)v_{1}+(1.17)(2.92)$$ $$10.40-1.17=(5.20)v_{1}+3.42$$ $$5.81=(5.20)v_{1}$$ $$1.12 \mathrm{\tfrac{m}{s}}= v_{1}$$Vertical: Lets take a look at the vertical aspect of the pink hexagon and cyan triangle collision. Before the collision the hexagon has a mass of 5.20 kg and is not moving up or down. The final vertical velocity of the hexagon is 0.23 m/s down. The final vertical velocity of the triangle is 0.67 m/s up. What is the triangle's initial vertical velocity?


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Addressing Use as Design: A Comparison of Constructivist Design Approaches
Authors
Katharina Bredies, Rosan Chow, Gesche Joost
Notes
Field of Study
Concepts
Quotations
References
Methodology