Item 1
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Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
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Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
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Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.


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Suspect wanted for 2018 shooting arrested in Boston
by EndPlayBOSTON (AP) - Police in Boston have arrested a man in connection to a 2018 fatal shooting.
Authorities say a fugitive apprehension unit of the Boston Police Department located and arrested Marcus Ambroisio on Saturday in the city's Dorchester neighborhood.
The 24-year-old was wanted on charges of murder and unlawful possession of a firearm. The allegations stem from the fatal shooting of 25-year-old Gregory Phillips in the city's Mattapan neighborhood on December 1oth of last year.
According to a police statement Ambroisio is scheduled to be arraigned on Monday.
It was unclear Sunday whether he had legal representation. Police say he was taken into custody without incident.


PRIMARY COLORS Reviewed by Pierce Dalton 4 stars (out of 4)
President Clinton not withstanding, Senator Jack Stanton has an issue.
Make that a major issue.
It is only two weeks til the Presidential Primary, and he is being accused of something he did not commit. So we assume.
A very close friend says his daughter is pregnant, and Stanton is the father.
And you thought the Monica Lewinski deal was major.
A political satire that isn't, Primary Colors is a viciously funny, very real comedy/drama about the ups and downs of Stanton's run for President.
Based on the novel by "Anonymous" (later revealed as a Newsweek writer), Colors is a mirror image film: a film that is so real, it doesn't even play for fiction.
John Travolta is so go as Stanton, I forgot that I wasn't watching Clinton himself. Stanton is a dead ringer for Clinton.
Emma Thompson is no Hilary. Her Susan is a warm, kind person who wants to win the primary for, not just herself, but for her and Jack.
The rest of Stanton's team includes Henry (British newcomer Adrian Lester), who narrates the film, Richard (Billy Bob Thornton), Daisy (Maura Tierny) and the investigator Libby (Kathy Bates - who's excellent.)
Colors is a brilliant, hystarical political comedy that is almost as good as the classic Wag the Dog.
Its not only satire, but an important film that could very easily play for history classes, aside from the R rating.
It doesn't just make Stanton look like a womenizer. It makes him look human.
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TIL: git push --force-with-lease
Don't ever type git push --force
. Yes, there are times we have to hold our
nose and do a force push. Maybe the project requires contributions to be
rebased or squashed. Maybe we pushed the nuclear launch codes. But there are
failure modes:
- You might be accidentally pushing to or from the wrong branch, and hence are about to blow away valuable work at the remote. Yes, is unlikely, and can be fixed after the fact, but who knows how much embarrassing disruption and confusion you'll cause the team before you realize what you did.
- Do you always remember to check the state of the remote, to make sure there isn't unexpected extra commits on the remote that you'll unknowingly blow away when you push? Do you enjoy always having to type those extra commands to pull and check the remote commits?
- No matter how conscientious we are about checking the above, there is a race condition. We might check the remote, then someone else pushes valuable changes, then we force push and blow them away.
Although there are conventions that can help with all the above (e.g. only ever force pushing to your own fork, to which nobody else ever pushes), they aren't generally watertight. (e.g. you might have pushed something yourself, before vacation, and forgotten about it.)
So the generally agreed method to avoid the above failure modes is "be more careful", which sounds to me like the common prelude to failure. What we need are push's newer command-line options:
--force-with-lease
- Like
--force
, but refuses to push if the remote ref doesn't point at the same commit that our local remote-tracking branch 'origin/mybranch' thinks it should. So if someone else pushes something to the remote's 'mybranch' just before we try to force push, our push will fail until we pull (and, in theory, inspect) those commits that we were about to blow away.
It turns out that this is inadequate. One might have fetched an up-to-date remote branch, but somehow or other ended up with our local HEAD on a divergent branch anyway:
C origin/mybranch | B¹ B² HEAD mybranch \ / A |
In this situation, --force-with-lease
will allow us to push, not only blowing
away the original commit B¹, as we intended, but also C, which was maybe pushed
by someone else before we fetched.
To guard against this, we can use the even newer option:
--force-if-includes
- This makes
--force-with-lease
even more strict about rejecting pushes, using clever heuristics on your local reflog, to check that the remote ref being updated doesn't include commits which have never been part of your local branch.
Upshot is, I plan to default to always replacing uses of --force
with:
git push --force-with-lease --force-if-includes ...
That's a lot to type, the options don't have short versions, and it's easy to forget to
do. Hence, shadow git
to enforce it, and make it easy. In .bashrc or similar:
# Shadow git to warn againt the use of 'git push -f' git() { is_push=false is_force=false for arg in "$@"; do [ "$arg" = "push" ] && is_push=true [ "$arg" = "-f" -o "$arg" = "--force" ] && is_force=true done if [ "$is_push" = true ] && [ "$is_force" = true ]; then # Suggest alternative commands. echo "git push -f: Consider 'git push --force-with-lease --force-if-includes' instead, which is aliased to 'gpf'" return 1 fi # Run the given command, using the git executable instead of this function. $(which git) "$@" } # git push force: using the new, safer alternatives to --force gpf() { # Older versions of git don't have --force-if-includes. Fallback to omitting it. if ! git push --quiet --force-with-lease --force-if-includes "$@" 2>/dev/null ; then git push --quiet --force-with-lease "$@" fi }
Then trying to do it wrong tells you how to easily do it right:
$ git push -f git push -f: Consider 'git push --force-with-lease --force-if-includes' instead, which is aliased to 'gpf' [1] $ gpf $
(The [1] is my prompt telling me that the last command had an error exit value.)


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free-for-dev
Developers and Open Source authors now have a massive amount of services offering free tiers, but it can be hard to find them all in order to make informed decisions.
This is list of software (SaaS, PaaS, IaaS, etc.) and other offerings that have free tiers for developers.
The scope of this particular list is limited to things infrastructure developers (System Administrator, DevOps Practitioners, etc.) are likely to find useful. We love all the free services out there, but it would be good to keep it on topic. It's a bit of a grey line at times so this is a bit opinionated; do not be offended if I do not accept your contribution.
You can help by sending Pull Requests to add more services. Once I have a good set of links in this README file, I'll look into a better layout for the information and links (help with that is appreciated too).
If you're not inclined to make PRs you can tweet me at @ripienaar
Table of Contents
- Source Code Repos
- Tools for teams & Collaboration
- Code Quality
- Code Search and Browsing
- CI / CD
- Security and PKI
- Management Systems
- Log Management
- Translation Management
- Analytics
- Monitoring
- Crash / Exception handling
- Search
- CDN and Protection
- PaaS
- BaaS
- Web Hosting
- IaaS
- DBaaS
- STUN, WebRTC, Web Socket Servers and other Routers
- Issue tracking / Project management
- Storage and Media Processing
- Data Visualization on Maps
- Package Build Systems
- IDE and Code Editing
- Analytics, Events and Statistics
- International Mobile number verification API and SDK
- Payment / Billing Integration
- Other Packs
- Docker Related
- Alternate container hosting
- Vagrant Related
- Vagrant box indexes
- Data mining
Source Code Repos
- https://bitbucket.org/ - Free unlimited public and private repos (git and mecurial) for up to 5 users
- http://chiselapp.com/ - Unlimited public and private Fossil repositories
- https://github.com - Free for an unlimited number of public repositories
- https://about.gitlab.com/ - Unlimited public and private git repos with unlimited collaborators
- https://hub.jazz.net/ - Unlimited public repos, private repos free for up to 3 accounts.
- https://visualstudio.com - Free unlimited private repos (Git and TFS) for up to 5 users per team
- https://assembla.com - Free repo hosting in a free plan.
Tools for teams & Collaboration
- http://appear.in/ - One click video conversations, for free
- http://www.hall.com/ - Free for unlimited users with some feature limitations
- https://www.flowdock.com/ - Chat and inbox, free for teams of 5 or less
- https://slack.com - Free for unlimited users with some feature limitations
- https://hipchat.com - Free for unlimited users with some feature limitations
- https://gitter.im - "Chat, for GitHub". Unlimited public & private rooms, free for teams of up to 25
- http://www.google.com/hangouts/ - One place for all your Conversations, for free (Need Google Account)
- https://kato.im - Team Chat & Collaboration, free for unlimited users with some feature limitations
- http://seafile.com/ - Private or cloud storage, file sharing, sync, discussions. Private version is full. Cloud version has just 1 GB.
- https://sameroom.io - Free for unlimited users with some feature limitations
- https://yammer.com/ - Private social network standalone or for MS Office 365. Free, just a bit less admin tools and users management features.
- https://www.blockspring.com/ - Share scripts with anyone on your team: cross language and with spreadsheet users. Free for 5 million runs a month.
- https://helpmonks.com/ - Shared inbox for teams - Free for open source projects and non-profit organizations.
- http://typetalk.in/ - Share and discuss ideas with your team through instant messaging on the web or on your mobile.
- https://talky.io/ - Free group video chat. Anonymous. Peer‑to‑peer. No plugins, signup, or payment required.
- http://sourcetalk.net/ - Code discussion tool, free for open code talks.
Code Quality
- http://tachikoma.io - Dependency Update for Ruby, Node.js, Perl projects - free for Open Source
- https://landscape.io/ - Code Quality for Python projects, free for Open Source
- https://codeclimate.com/ - Automated code review, free for Open Source
- https://houndci.com/ - Comments on github commits about code quality - free for Open Source
- https://coveralls.io/ - Display test coverage reports - free for open source
- https://scrutinizer-ci.com/ - Continuous inspection platform - free for Open Source
- https://codecov.io/ - Code coverage tool (SaaS), free for 1 private project and no restrictions for publics repos
- https://insight.sensiolabs.com/ - Code Quality for PHP/Symfony projects, free for Open Source
- https://www.codacy.com/ - Automated code reviews for PHP, Python, Javascript, Scala and CSS - free for open source
- https://www.pullreview.com - Automated Code Review for Ruby in GitHub, Bitbucket and Gitlab - free for Open Source
- http://gocover.io/ - Code coverage for any Go package
Code Search and Browsing
- https://sourcegraph.com/ - Java, Go, Python, Node.js, etc., code search/cross-references - free for open source
- https://searchcode.com/ - comprehensive text-based code search - free for open source
CI / CD
- https://codeship.com/ - 100 private builds / month, 5 private projects. Unlimited for Open Source
- https://circleci.com - Free for one concurrent build
- https://travis-ci.org - Free for public Github repositories.
- http://wercker.com/ - Free for public and private repositories
- https://drone.io/ - CI platform that includes browser testing, free for Open Source
- https://semaphoreci.com/ - 100 private builds / month. Unlimited for Open Source.
- http://www.shippable.com/ - Free for 1 build container, private and public repos, unlimited builds.
- https://snap-ci.com - Free for public repositories, 1 build at the time
- http://www.appveyor.com/ - CD service for Windows. Free for open-source projects.
- Comparison of Continuous Integration services
- https://saucelabs.com/ - CI with scalable testing for mobile and web apps, free for Open Source
- http://ftploy.com/ - 1 project w/ unlimited deployments
- https://deployhq.com/ - 1 project w/ 10 daily deployments
- https://hub.jazz.net/ - 60 minutes of free build time / month.
- https://styleci.io/ - Public GitHub repositories only.
Security and PKI
- http://vaddy.net - Continuous web security testing with continuous integration (CI) tools. 3 domains, 10 scan history for free
- https://www.globalsign.com/en/ssl/ssl-open-source/ - Free SSL certs for Open Source projects
- https://www.startssl.com/ - Free SSL certs
- https://stormpath.com/ - Free user management, authentication, social login, and SSO.
- https://auth0.com/ - Hosted free for development SSO
- https://getclef.com/ - New take on auth unlimited free tier for anyone not using premium features
- https://ringcaptcha.com/ - Tools to use phone number as id, available for free
- https://www.ssllabs.com/ssltest/ - Very deep analysis of the configuration of any SSL web server
- https://qualys.com/forms/freescan/owasp/ - Find web app vulnerabilities, audit for OWASP Risks
- alienvault.com ThreatFinder - Uncovers compromised systems in your network
- https://duosecurity.com - Two-factor authentication (2FA) for website or app. Free 10 users, all authentication methods, unlimited, integrations, hardware tokens.
- https://www.tinfoilsecurity.com/ - Automated vulnerability scanning. Free plan = weekly XSS scans.
Management Systems
- https://opbeat.com/ - Release, deploy, monitor. Free for 3 users
- https://bitnami.com/ - Deploy prepared apps on IaaS. Management of 1 AWS micro instance free
Log Management
- https://papertrailapp.com/ - 48 hours search, 7 day archive, 100MB/month
- https://logentries.com/ - Free up to 5GB/month with 7 day retention
-
https://www.loggly.com/ - Free for a single user, see the
lite
option - http://sematext.com/logsene - Free for 1M logs, unlimited retention
- https://www.sumologic.com - Free up to 500MB/day, 7 day retention
Translation Management
- https://lingohub.com - free up to 3 users, Open Source projects are always free
- https://www.getlocalization.com/ - free for public projects
- http://webtranslateit.com - free up to 500 strings
- http://transifex.com - free for Open Source projects
- http://www.oneskyapp.com/ - limited free edition for up to 5 users, free for Open Source projects
- https://crowdin.com - Unlimited projects, unlimited strings and collaborators for Open Source projects
Analytics
- http://www.splunk.com/en_us/products/splunk-cloud.html - Upload 5GB of data per day up to 28GB of total data stored
- https://parse.com - Unlimited free analytics
- https://keen.io - Up to 50,000 events/month free
Monitoring
- http://www.appneta.com - Free with 1 hour data retention
- https://www.thousandeyes.com - Network & user experience monitoring. 3 locations, plus 20 data feeds of major web services free.
- https://www.datadoghq.com/ - Free for up to 5 nodes
- http://www.stackdriver.com/ - Free for up to 10 nodes/services
- https://keymetrics.io/ - Free for 2 servers with 7 days data retention
- http://newrelic.com/ - Free with 24 hour data retention
- https://nodequery.com/ - Free basic server monitor up to 10 servers
- https://www.pingdom.com/free/ - 1 site free
- http://www.watchsumo.com/ - Free website uptime monitoring
- https://www.opsgenie.com/ - Alert management with mobile push. 600 free alerts for 2 users a month
- https://www.runscope.com/ - Monitor and log API usage. Single user 10,000 request/month free
- http://www.circonus.com/ - Free for 20 metrics
- https://uptimerobot.com/ - Website monitoring, 50 monitors free
- https://www.statuscake.com/ - Website monitoring, unlimited tests free with limitations
- http://www.boundary.com/ - Free 1 second resolution for up to 10 servers
- https://ghostinspector.com/ - Free website and web application monitoring. Single user, 100 test runs per month
- http://java-monitor.com/ - Free monitoring of JVM's and uptime
- http://sematext.com/spm - Free for 24h metrics, unlimited number of servers, 10 custom metrics, 500K custom metrics data points, unlimited dashboards, users, etc.
-
https://sealion.com/ - Free up to 2 servers, 3 days data retention, graphs and raw command output history (
top
,ps
,ifconfig
,netstat
,iostat
,free
, custom, etc.) - https://www.stathat.com - Get started with ten stats for free, no expiration.
- https://www.skylight.io - Free for first 100k requests
- https://www.appdynamics.com - Free for 24h metrics, application performance management agents limited to one Java, one .NET, one PHP, and one Node.js
- https://deadmanssnitch.com - Monitoring for cron jobs. 1 free snitch (monitor) - more available if you refer others to sign up
- http://caliper.io/ - Monitoring for Single Page Apps
Crash / Exception handling
- https://rollbar.com/ - Exception and error monitoring, free plan - 5000 errors/month, unlimited users, 30 days retention.
- https://bugsnag.com/ - Free for up to 2000 errors a month after the initial trial
- https://airbrake.io/ - Free for 1 project, 1 user, 2 errors per minute, 2 day retention
- http://getsentry.com/ - Sentry tracks app exceptions in realtime, has a small free plan. Free, unrestricted use if self-hosted.
Search
- https://www.algolia.com - Hosted search-as-you-type (instant). Free hacker plan up to 1,000 documents and 50,000 operations. Bigger free plans available for community/open source projects.
- https://swiftype.com - hosted search solution (API and crawler). Free for a single search engine with up to 1000 documents. Free upgrade to Premium level for open-source projects.
- https://bonsai.io - Free 1GB memory and 1GB storage.
- http://www.searchly.com - Free 2 Indices and 5MB storage.
- http://www.sparkpost.com/ - First 10,000 emails per month are free
- http://www.mailgun.com/ - First 10,000 emails per month are free
- http://mailchimp.com/ - 2,000 subscribers and 12,000 emails per month are free
- https://sendloop.com/ - 2,000 subscribers and 10,000 email delivery every month is free
- http://sendgrid.com/ - 400 emails per day for free/25,000 free transactional emails per month for emails sent from a Google compute instance
- http://mandrill.com/ - First 12,000 emails per month are free
- https://www.phplist.com/ - Hosted version allow 300 mails per month for free
- https://www.mailjet.com/ - 6000 mails per month for free
- https://www.sendinblue.com/ - 9000 mails per month for free
- https://mailtrap.io - fake SMTP server for development, free plan with 1 inbox, 50 messages, no team members, 2 emails/sec, no forward rules
- https://mailstache.io - 4 Mailboxes @ 1GB each for up to 2 custom domains.
- https://postmarkapp.com - First 25,000 emails are free
- https://www.zoho.com/mail/ - Free Email management and collaboration for up to 10 users.
- http://moosend.com/ — Mailing list management service. Free account for 6 months for startups.
CDN and Protection
- http://www.cloudflare.com/ - Basic service is free, good for a blog
- http://www.bootstrapcdn.com/ - CDN for bootstrap, bootswatch and font awesome
- https://surge.sh - Zero-bullshit, single–command, bring your own source control web publishing CDN.
- https://cdnjs.com/ - CDN for JavaScript libraries, CSS libraries, SWF, images, etc!
- http://www.jsdelivr.com/ - super-fast CDN of OSS (JS, CSS, fonts) for developers and webmasters, accepts PRs to add more
- https://developers.google.com/speed/libraries/ - The Google Hosted Libraries is a content distribution network for the most popular, open-source JavaScript libraries.
- https://www.asp.net/ajax/cdn - The Microsoft Ajax Content Delivery Network (CDN) hosts popular third party JavaScript libraries such as jQuery and enables you to easily add them to your Web application
- https://toranproxy.com/ - Proxy for Packagist and GitHub. Never fail CD. Free for personal use, 1 developer, no support.
- http://rawgit.com - free limited traffic, serves raw files directly from GitHub with proper Content-Type headers.
- https://www.incapsula.com/ - free CDN and DDoS protection
PaaS
- https://cloud.google.com/appengine/ - Google App Engine gives 28 instance hours free, 1Gb NoSQL Database and more.
- https://www.engineyard.com - Engine Yard provides 500 free hours
- http://azure.microsoft.com/ - MS Azure gives $200 worth of free usage for a trial
- http://hpcloud.com/ - $300 credit over 90 days.
- https://appharbor.com/ - A .Net PaaS that provides 1 free worker
- https://shellycloud.com/ - Platform for hosting Ruby and Ruby on Rails apps. Shelly Cloud gives €20 free credit
- https://www.heroku.com/ - Host your apps in the cloud, free for single process apps
- https://www.firebase.com/ - Build realtime apps, free plan has 50 Max Connections, 5 GB Data Transfer, 100 MB Data Storage. 1 GB Hosting Storage and 100 GB Hosting Transfer.
- https://bluemix.net/ - IBM PaaS with a monthly free allowance
- https://www.openshift.com/ - Red Hat PaaS, free tier provides three small gears (each with 512MB memory, 1GB storage). {Browse one-click deployments}.
- https://scalingo.com - Free Tier, up to 3 apps, 1 container each, combined with data store addons free tier
- https://algorithmia.com - Host algorithms for free - includes 10,000 credits (seconds of on-demand execution time) free
- https://bigml.com/ - Hosted machine learning algorithms. Unlimited free tasks for development, limit of 16MB data per task
- https://www.activestate.com/stackato/ - Enterprise-hardened Cloud Foundry PaaS from ActiveState, for private, public and hybrid cloud, free up to 20GB
- http://www.outsystems.com/ - Enterprise web development PaaS for on-premise or cloud, free "personal environment" offering allows for unlimited code and up to 1GB database.
- https://platform.telerik.com/ - Build and deploy mobile applications using Javascript. Free plan has 100 MB Data Storage, 1GB File storage, 5GB Bandwidth, 1 million push notifications for BaaS offering, 100 active devices for analytics.
- http://scn.sap.com/docs/DOC-56411 - The in-memory Platform-as-a-Service offering from SAP. Free developer accounts come with 1GB structured, 1GB unstructured, 1GB of Git data and allow you to run HTML5, Java and HANA XS apps.
- https://www.mendix.com/ - Rapid Application Development for Enterprises - Unlimited number of free sandbox environments supporting 10 users, 100MB of files and 100MB database storage each.
- https://www.pythonanywhere.com - cloud Python app hosting. Beginner account is free - one Python web applications at your-username.pythonanywhere.com domain, 512MB private file storage, one MuSQL database.
BaaS
- http://apigee.com/docs/api-baas (product docs), http://apigee.com/docs/developer-vs-edge (registration) - Unlimited trial includes NoSQL data store with 25GB of storage, user and permission management, geolocation, 10,000,000 push notifications per month, remote configuration, beta and A/B split testing, APM, fully API driven. Accessible and manageable via UI, SDK, and API.
- http://appacitive.com/ - Mobile backend, free for the first 3 months with 100k API calls,Push notifications.
- https://bip.io/ - A web-automation platform for easily connecting web services. Fully open GPLv3 to power the backend of your open-source project. Commercial OEM License available.
- https://www.blockspring.com/ - Cloud functions. Free for 5 million runs a month.
- https://www.contentful.com - Content as a Service. Content Management & Delivery APIs in the cloud. 3 users, 3 spaces (repositories) and 1,000,000 API requests per month for free.
- http://www.kinvey.com - Mobile backend, starter plan has unlimited requests per second, with 2 GB of data storage, as well as push notifications for up 5,000,000 unique recipients. Enterprise application support.
- http://konacloud.io Web and Mobile Backend as a Service, with 5 GB free account.
- https://layer.com/ - The full-stack building block for communications.
- https://www.parse.com - Mobile backends, free plan has 30 requests per second, with 20 GB of file and database storage, as well as push notifications for up to 1,000,000 unique recipients.
- http://quickblox.com/ - A communication backend for instant messaging, video and voice calling, and push notifications
- https://pushbots.com - Push notification service. Free for up to 1,500,000 push/month.
- http://www.dreamfactory.com/ - DreamFactory is an open source backend platform that provides all of the RESTful services you need to build fantastic mobile and web applications
- https://www.mashape.com/ - API Marketplace And Powerful Tools For Private And Public APIs. With the free tier, some features are limited such as monitoring, alerting and support.
Web Hosting
- https://www.simplybuilt.com - SimplyBuilt offers free website building and hosting for open source projects (http://www.simplybuilt.com/explore/free-websites-for-open-source-projects). Simple alternative to GitHub Pages.
- http://www.devport.co - Turn GitHub projects, Apps, and websites into a personal developer portfolio.
- https://www.netlify.com - Builds, deploy and hosts static site or app, free for 100 MB data and 1 GB bandwidth.
- https://divshot.com/ - Static Web Hosting for Developers, free basic apps, 1 GB bandwidth, 100 MB storage, custom domains, subdomain SSL.
- https://pantheon.io/ - Drupal and WordPress hosting, automated DevOps, and scalable infrastructure. Free for developers and agencies.
IaaS
- http://aws.amazon.com/free/ - AWS Free Tier - Free for 12 months
- https://exoscale.ch/ - Free resources for Open Source projects
- https://developer.rackspace.com/ - Rackspace Cloud gives $50/month for 12 months
- https://cloud.google.com/compute/ - Google Compute Engine gives $300 over 60 days
- https://cloud.google.com/container-engine/ - Google Container Engine for run Docker containers(Alpha). Pricing: same of Google Compute Engine.
- https://nsone.net/ - Data Driven DNS, automatic traffic management, 1M free Queries
DBaaS
- https://cloudant.com/ - Hosted database from IBM, free if usage is below $50/month
- https://orchestrate.io/ - 1 application free
- https://redislabs.com/redis-cloud - Redis as a Service (25 mb free)
- https://www.backand.com/ - Back-end as a service (for AngularJS)
- http://www.zenginehq.com - Build business workflow apps in minutes - free for single users
- https://parsehub.com/ — Extract data from dynamic sites, turn dynamic websites into APIs, 5 projects free.
- https://import.io/ - Easily turn websites into APIs, completely free for life.
- https://kimonolabs.com - "Turn websites into structured APIs from your browser in seconds", free for public APIs, up to 20 million pages fetch / month. Supports scheduling, JSON, CSV, post-auth, ...
- https://redsmin.com/ - Online real-time monitoring and administration service for Redis, 1 Redis instance free
- http://graphstory.com/ - GraphStory offers Neo4j (a Graph Database) as a service
- http://www.elephantsql.com/ - PostgreSQL as a service (20mb free)
STUN, WebRTC, Web Socket Servers and other Routers
- https://pusher.com. Hosted Web Sockets broker. Free for up to 20 simultaneous connections and 100k messages a day.
- stun:stun.l.google.com:19302 - Google STUN
- stun:global.stun.twilio.com:3478?transport=udp - Twilio STUN
- https://www.segment.com. Hub to translate and route events to other third party services. 100k events a month free.
- https://ngrok.com/ - expose locally running servers over a tunnel to a public URL
Issue tracking / Project management
- https://www.pivotaltracker.com/community/public-projects - Pivotal Tracker. Free for public projects.
- https://www.atlassian.com/opensource/overview - Free Jira etc for Open Source projects
- https://kanbanflow.com/ - Board based project management. Free (premium version with more options).
- https://kanbanpad.com/ - Board based project management. Free (premium version with more options).
- https://kanbanery.com/ - Board based project management. Free for 2 users (premium tiers with more options).
- https://zenhub.io/ - The only project management solution inside GitHub. Free for public repos, OSS, and non-profits.
- https://trello.com/ - Board based project management. Free
- https://waffle.io/ - Board based project management solution from your existing GitHub Issues. Free for open-source.
- https://huboard.com/ - Instant project management for your GitHub issues. Free for open-source.
- https://taiga.io/ - Project management platform for startups and agile developers. Free for open-source.
- https://www.jetbrains.com/youtrack/buy/open_source_incloud.jsp - Free hosted YouTrack (InCloud) for FOSS projects (private projects free for 10 users: https://www.jetbrains.com/youtrack/buy/)
- https://github.com - In addition to its git storage facility, github offers basic issue tracking
- https://asana.com - Free for private project with collaborators.
- http://www.acunote.com/ - Free project management and SCRUM software for up to 5 team members.
- http://gliffy.com/ - Online diagrams: flowchart, UML, wireframe... Also Plugins for Jira & Confluence. 5 diagrams and 2 MB free.
- https://cacoo.com/ - Online diagrams in real time: flowchart, UML, network. Free max. 15 users/diagram, 25 sheets.
- https://www.draw.io/ - Online diagrams stored locally, in Google Drive, OneDrive or Dropbox. Free for all features and storage levels.
- https://hub.jazz.net/ - IBM Bluemix's project management services. Free for public projects, free for up to 3 users for private projects.
- http://leankit.com/ - Kanban board, that visualizes your workflow. Free up to 10 users.
- https://www.visualstudio.com/products/what-is-visual-studio-online-vs - Unlimited free private code repositories; Tracks bugs, work items, feedback and more.
- https://testlio.com - Issue tracking, test management and beta testing platform. Free for private use.
- https://www.vivifyscrum.com/ Free tool for Agile project management. Scrum Compatible.
Storage and Media Processing
- https://www.aerofs.com/ - P2P file syncing, free for up to 30 users
- http://cloudinary.com - Image upload, powerful manipulations, storage, and delivery for sites and apps, with libraries for Ruby, Python, Java, PHP, Objective-C and more. Perpetual free tier includes 7500 images/month, 2gb storage, 5gb bandwidth.
- https://plot.ly - graph and share your data. Free tier includes unlimited public files and 10 private files.
- https://transloadit.com - Handles file uploads & encoding of video, audio, images, documents. Free for open source & other do-gooders. Commercial applications get the first GB free for test driving.
- https://podio.com/ - You can use Podio with a team of up to five people and try out the features of the Basic Plan - except User Management.
- https://shrinkray.io - free image optimization of Github repos
- https://www.cine.io - Scalable video broadcasting and p2p real-time video chat for iOS, Android, and web. Free tiers available for developers.
- http://imagefly.io - Responsive images on-demand. CDN-fronted image resizing, transcoding, and optimizing. 100 MB/month for free.
Data Visualization on Maps
- http://geocod.io - Geocoding via API or CSV Upload. 2.500 free queries per day.
- http://gogeo.io/ - Maps and geospatial services with an easy to use API and support for big data
- https://cartodb.com - Create maps and geospatial APIs from your data and public data.
- http://www.giscloud.com - Visualize, analyze and share geo data online.
- https://www.mapbox.com/ - Maps, geospatial services, and SDKs for displaying map data.
Package Build Systems
- https://build.opensuse.org/ - package build service for multiple distros (SUSE, EL, Fedora, Debian etc.)
- https://copr.fedoraproject.org/ - mock-based RPM build service for Fedora and EL
- https://help.launchpad.net/Packaging - Ubuntu and Debian build service
IDE and Code Editing
- https://c9.io - IDE in a browser. Incorporates an Ubuntu virtual machine and in-browser terminal access. Integrates with github and bitbucket, but also adds SFTP and generic Git access.
- https://codeanywhere.com - Full IDE in the browser and mobile apps. Access FTP, SFTP, Dropbox, Google Drive, GitHub, and BitBucket. Hosted virtual machines with terminal access. Collaboration features like share links, live editing, permissions, and version tracking.
- https://koding.com - IDE in a browser. Features: Full sudo access - VMs hosted on Amazon EC2 - SSH Access - Real EC2 VM, no LXCs/hypervising - Custom sub-domains - Publicly accessible IP - Ubuntu 14.04 - IDE/Terminal/Collaboration
- https://www.nitrous.io - Private Linux instance(s) with interactive collaboration, free for 2 hours a day. {More Details}
- http://visualstudio.com/free - Fully-featured IDE with thousands of extensions, cross-platform app development (Microsoft extensions available for download for iOS and Android), desktop, web and cloud development, multi-language support (C#, C++, JavaScript, Python, PHP and more).
- https://cloud.sagemath.com - Collaborative mathematics-oriented IDE in a browser, with support for Python, LaTeX, IPython Notebooks, etc.
- https://wakatime.com - quantified self metrics about your coding activity, using text editor plugins - Limited plan for free.
- https://codenvy.com/ - IDE in a browser, collaborative, git integration, build and run your app in customizable Docker-based runners (free 512Mb RAM to distribute between you runners), pre-integrated deploy to Google Apps.
- https://apiary.io/ - Collaborative design API with instant API mock and generated documentation (Free for unlimited API blueprints and unlimited user with one admin account and hosted documentation)
- https://www.mockable.io/ - Mockable is a simple configurable service to mock out RESTful API or SOAP web-services. This online service allows you to quickly define REST API or SOAP endpoints and have them return JSON or XML data.
- https://www.jetbrains.com/products.html - Productivity tools, IDEs and deploy tools. Free license for students, teachers, open source projects, and user groups.
- https://readme.io/ - Beautiful documentations made easy - free for Open Source
- https://codio.com/ - Codio is a cloud-based computer programming platform for universities, schools, and developer professionals.
- http://www.stackhive.com/ - Cloud based IDE in browser that supports HTML5/CSS3/jQuery/Bootstrap
- http://www.tadpoledb.com/ - IDE in browser Database tool. Support Amazon RDS, Apache Hive, Apache Tajo, CUBRID, MariaDB, MySQL, Oracle, SQLite, MSSQL, PostgreSQL and MongoDB databases.
- https://www.sourcelair.com - In-browser IDE for Django, JavaScript, HTML5, Python, and more. Integrates with Git, Mercurial, GitHub, Heroku and more. Free forever for 1 private project.
Analytics, Events and Statistics
- https://www.librato.com/ - Event/Data collection service with analysis and graphs. Limited plan for free.
- https://google.com/analytics/ - Google Analytics
- https://heapanalytics.com/ - Automatically captures every user action in iOS or web apps. Free for up to 5,000 visits per month.
- http://sematext.com/search-analytics - Free for up to 50K actions/month, 1 day data retention, unlimited dashboards, users, etc.
- https://usabilityhub.com - Test designs and mockups on real people, track visitors. Free for one user, unlimited tests.
- https://gosquared.com - Track up to 1,000 data points for free.
- https://mixpanel.com - Free 25000 points or 200000 with their badge on your site.
- https://keen.io - Custom Analytics for data collection, analysis and visualization. 50,000 events/month free
International Mobile number verification API and SDK
- https://www.cognalys.com - Freemium mobile number verification through an innovative and reliable method than using SMS gateway. Free accounts will have 70 Tries and 50 verifications per day. {Signup}
Payment / Billing Integration
- https://www.braintreepayments.com - Credit Card, Paypal, Venmo, Bitcoin, Apple Pay (, ...) integration. Single and Recurrent Payments. First $50 are free of charge.
- http://taxratesapi.avalara.com/ - Get the right sales tax rates to charge for the close to 10,000 sales tax jurisdictions in the USA. Free REST API. Registration required.
Other Packs
- https://education.github.com/pack - As long as you're a student at a recognized university
Docker Related
Alternate container hosting
- https://quay.io/ - Unlimited free public containers
Vagrant Related
Vagrant box indexes
- https://atlas.hashicorp.com/boxes/search - HashiCorp's index of boxes
- http://vagrantbox.es - An alternative public box index
Data mining
- http://www.monkeylearn.com/ - Text mining in the cloud, 1,000 queries for free per month.


Scary Movie 2 (2001) 1 star out of 4. Starring Shawn Wayans, Marlon Wayans, Anna Faris, Regina Hall, Chris Masterson, Kathleen Robertson, James Woods, Tim Curry, Tori Spelling and Chris Elliott. Written by Shawn Wayans & Marlon Wayans & Alyson Fouse & Greg Grabianski & Dave Polsky & Michael Anthony Snowden & Craig Wayans. Directed by Keenen Ivory Wayans. Rated R.
They should have stuck to the promise emblazoned on the original movie's poster: "No sequel."
Scary Movie 2 is nowhere near as funny as its predecessor, and it is not because the Wayans brothers, Shawn and Marlon doing the writing and Keenen Ivory behind the camera, don't try.
What defeats them is the genre they have chosen to spoof. The first movie - an outrageous, low-brow, savage satire of teen slasher flicks such as Scream and I Know What You Did Last Summer - succeeded because of its take-no-prisoners attitude toward a type of film that was in vogue, familiar and popular.
In Scary Movie 2, the filmmakers take on the haunted house-ghost story format which, if you look at the grosses for such recent lame offerings as the respective remakes of The Haunting and House on Haunted Hill, did not draw audiences nor enter the cultural psyche as did the various teen slasher series.
Scary Movie 2 does start off promising with a wonderful spoof of The Exorcist, featuring James Wood in the Max Von Sydow role and Veronica Cartwright lampooning Ellen Burstyn. Of course split pea soup is the punch line - an overabundant amount, which offers the hope that the rest of the movie will be just as tasteless and excessive.
But this pre-credit sequence has nothing at all to do with the main action, which features the cast members from the original signing up to spend a weekend at a creepy haunted mansion as part of a university class project.
Some of the jokes are as scatological and offensive as in the original, but they lack that take-no-prisoners bite that raised Scary Movie to the heights of burlesque.
Scary Movie 2 merely lurches from one lame sendup to another, offering weak spoofs of that Nike shoe ad in which everyone does acrobatics with a basketball, and the films What Lies Beneath and Hannibal (features that only faired adequately at the box office), John Woo's Mission: Impossible 2 and Charlie's Angels.
It is as if the Wayans and their team of writers - at least seven are credited - just threw ideas in a blender and hoped they'd coalesce. They don't.
While the pace of the original left you breathless, the sequel moves with the speed of an 18-wheeler carrying two tons of concrete up a steep mountain road. You can almost hear the reels panting.
Scary Movie 2 tries very hard to live up to its original, but it falls very short. It's a dissatisfying spectacle, a very weak sister of a very good movie. The really scary aspect of this sequel is how disappointing it really is.
Bob Bloom is the film critic at the Journal and Courier in Lafayette, IN. He can be reached by e-mail at<EMAIL_ADDRESS>Other reviews by Bloom can be found at www.jconline.com by clicking on golafayette. Bloom's reviews also can be found on the Web at the Internet Movie Database: http://www.imdb.com/M/reviews_by?Bob+Bloom
========== X-RAMR-ID: 28683 X-RT-AuthorID: 1363 X-RT-TitleID: 1108748 X-RT-RatingText: 1/4
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


Lispeto
This is a demo of my own implementation of
MAL
.
Console
Script
Run
Reset
; The Hello World of functional programming, fibonnacci numbers ; here with tail call optimization! (def! fib (fn* (n) (let* [inner (fn* [i lst] (if (= i n) (apply + lst) (inner (+ i 1) (vector (nth lst 1) (apply + lst)))))] (inner 3 [1 1])))) (println "(fib 30) =>" (fib 30))


Zeus
Tips
- Zeus's auto attack damage and range and animation and projectile speed are all pretty garbage, making it
almost a necessity to last hit with Arc Lightning. As a result, your lane enemy will almost certainly
have a Magic Stick. If you're mid, this means you should try to exclusively cast Arc from the high
ground. Enemies only get Stick charges if the caster is in vision.
- Lightning Bolt gives vision, Arc Lightning does not. Cast Lightning Bolt first if you're chasing someone
to make sure you don't lose your target in fog.
- Lightning Bolt has a ministun which allows you to cancel channels.
- Don't forget about Lightning Bolt's ground targeting capabilities. Early game you don't really have the
mana to burn to use it for dewarding unless you're 100% sure you know where a ward is.
- If you ground target Lightning Bolt from fog, you won't reveal yourself to the enemy who gets hit by it.
If you directly target them, they'll get vision of you.
- If you think someone is just about to escape vision, don't risk casting Lightning Bolt on the hero, just
cast it on the ground right behind them.
- The ground targeting also adds a bonus 325 range to the spell. This means it's just barely long enough
to hit heroes from the edge of your stairs mid to the edge of the enemy's stairs mid.
- Try to maintain mana for your ult in the early game.
- While you theoretically do more damage with Static Field by casting Thundergod's Wrath at the beginning
of a team fight, it's can be better to save it for the middle/end of a fight. Players always react
differently in a team fight depending on how much HP they have. By holding on to your ult, you can
create a situation where the enemy will commit deeper than they wanted to because they didn't consider
how much damage your ult would deal.
- You can use your ult as temporary counter-initiation against teams with a lot of Blink Daggers.
 Try burning off as much of it as you can
solely with Arc Lightning+Static Field or just wait for it to time out (Pipe only lasts 10 seconds).
Counters
- Buy a Smoke of Deceit against Zeus. Thundergod's Wrath only reveals invisible units, but does not damage
them.  Buy a smoke. Use it when escaping with low HP. Laugh at Zeus in all chat.
- No matter who you're playing, it's almost always worth getting a Cloak against Zeus. Even if your team
is building a Pipe, get a Cloak.
- But you should definitely have a Pipe on your team against Zeus also.


Methods
-
click()
-
Mouse functions
- Source:
-
deleteMB()
-
Manage MetroBalls
- Source:
-
drawBalls()
-
Draw functions
- Source:
-
drawSpaces()
-
Draw framework of rounded rectangles
- Source:
-
init()
-
Initialize Object
- Source:
-
pulse()
-
Animation Pulse
- Source:


In this section you will find instructions for two relaxation exercises: Deep Breathing and Imagery. You can either read these instructions, or watch a video. You can use these exercises anytime you feel stressed. Deep Breathing and Imagery slow down your body, help you to get your mind off of your tinnitus, and help you feel relaxed and calm. When you are calm you feel a sense of relief from tension and stress caused by tinnitus, think more clearly, function better, and feel better overall.
Deep Breathing Instructions Step-by-Step
Note: Many more relaxation videos are available online at websites like YouTube.com.
Find a relaxing place where you will not be disturbed. If needed, turn your phone off and ask others to give you this time alone. Loosen any tight clothing or change into comfortable clothes.
Sit in a chair with your feet flat on the floor or propped up. Place your hands in your lap or on the arms of the chair. Make sure you are comfortable.
Many people who have tinnitus find it useful to use sound while practicing relaxation techniques. You might consider using a neutral sound, or a sound that is soothing for you.
Place one hand on your stomach and one hand on your chest. Take a normal breath in and notice which hand moves the most. Most likely it will be the hand on your chest. This shows that you tend to breathe shallow breaths from your chest. Now try to take a breath from your abdomen (stomach). You might feel like you are pushing your stomach out—that is how it feels when you are more relaxed and breathing more deeply.
Close your eyes (if you are comfortable doing so) or look at an object in the room like a book on the bookshelf.
Take a deep breath in through your nose—slowly for a count of three. (Remember to use your stomach first and let your chest expand naturally after that.)
Hold that breath for two seconds and then exhale for a count of three from your mouth.
Repeat steps 4 and 5 at least five times.
When you are ready to stop the Deep Breathing exercise, count back from 3 to 1:
3 – Become aware of your surroundings
2 – Move your feet, legs, hands, arms, and rotate your head
1 – Open your eyes feeling relaxed
Imagery Instructions Step-by-Step
Note: Many more relaxation videos are available online at websites like YouTube.com.
Choose a place you will imagine. You can imagine any place that would be calming and peaceful for you. You should feel safe there.
When you are choosing what you will imagine, think about these things:
The place: Where do you want to be?
Examples: the beach or in your kitchen
Sight: What do you see?
Examples: trees, grass, the sun, or an oven
Smell: What do you smell?
Examples: the ocean, pine, flowers, or cooking food
Sounds: What do you hear?
Examples: birds, twigs cracking, soft waves, or boiling water
Touch: What do you feel?
Examples: a cool breeze, the warm sun, or heat from cooking
Taste: What can you taste?
 If needed, turn your phone off and ask others to give you this time alone. Loosen any tight clothing or change into comfortable clothes.
Sit in a chair with your feet flat on the floor or propped up. Place your hands in your lap or on the arms of the chair. Make sure you are comfortable.
Many people who have tinnitus find it useful to use sound while practicing relaxation techniques. You might consider using a neutral sound, or a sound that is soothing for you.
Take several deep breaths and shift your focus to the peaceful image you chose.
As you focus your thoughts on your peaceful place:
Imagine a path you travel on as you journey through your place.
Example: As you look back notice your footprints in the sand where you have just walked along the shore. Slowly, a wave moves in and washes over the footprints.
Imagine what you hear, smell, and taste.
Imagine reaching out and touching things around you.
Example: Notice how the sand or a leaf feels as you hold it in your hand.
As you imagine your relaxing place, move deeper and deeper into the image. You should feel calm and peaceful there.
Notice how your body feels—you will want to return to this feeling next time.
When you are ready to stop imagining the peaceful place, count back from 3 to 1:
3 – Become aware of your surroundings
2 – Move your feet, legs, hands, arms, and rotate your head
1 – Open your eyes feeling relaxed


Renault-Nissan to reboot alliance with new overseer
PARIS (Reuters) - Renault, Nissan and Mitsubishi plan to appoint a general secretary at the helm of their partnership to boost cooperation and reboot joint operations after the departure of former alliance supremo Carlos Ghosn.
France’s Renault is trying to repair relations with its Japanese partners after they were shaken by Ghosn’s arrest in Tokyo a year ago on financial misconduct charges, which the alliance’s founder denies.
The scandal disrupted efforts to roll out industrial projects together and find cost savings - increasingly vital as global auto demand falters - as Renault and Nissan shook up their teams in an effort to stabilize their business.
“This alliance executive will be key for coordinating and facilitating several major alliance projects that are to be launched to accelerate business efficiencies for the respective companies,” the groups said in a joint statement.
A source close to Renault said the future general secretary had already been recruited, describing him as francophone, but declined to give more details.
The new head of the three-pronged partnership will report to the Alliance Operating Board and the group CEOs in a departure from the structure in which Ghosn was an all-powerful figure.
Set up in April, the new Alliance Operating Board is a key element of a revamped corporate governance structure set in motion by Renault and alliance president Jean-Dominique Senard, who arrived at the French carmaker in January.
The Alliance Operating Board alternates its monthly meetings between France and Japan.
A source at Renault said that a future common platform for electric vehicles will be one of the alliance board’s key targets.
Renault is also looking for a new chief executive. Financial chief Clotilde Delbos has taken on the job on an interim basis.


Test the different app-route types by navigating through these links.
app-route
Test the basic features of <core-animated-pages>.
<core-animated-pages>


1 Samuel 17:42
And when the Philistine looked about, and saw David, he disdained him: for he was but a youth, and ruddy, and of a fair countenance.


The application records data such as the location of your phone and the name of your team. In some network activities this will be stored on a server and visible during activities to other players. You can prevent this data from being shared with others if you do not engage in network-coordinated games and activities.
Entering this state: turn off engine
Listeners +listenerThen start: Returning
Then start: Circling
Then start: Calling for help


Erica Kait Creative
Sarah + Matt
On Sunny Slope Farm, Virginia
Wedding - May 2017
Sarah and I were friends in college so when she asked me to photograph her and Matt's wedding back in the beautiful state of Virginia I said AB-SO-LUTELY! Sarah + Matt's wedding day was beyond lovely. The venue, On Sunny Slope Farm, nestled into the rolling hills of Dayton, Virginia did not disappoint. Sarah and Matt were possibly the most laid back couple I've ever photographed which meant everything was FUN - and isn't that how a wedding day should be?!
This day was full of happy tears, laughter, funny faces, and then more dancing than you would think was possible for a Sunday night wedding. I may have gone a little overboard with how many pictures I chose to post, but sometimes there are just too many good ones to narrow it down.
Congrats, Matt and Sarah!


The wearable technology market is moving fast. Products in this category combine sophisticated electronics into small, light weight and power efficient solutions. A mixed signal ASIC is a great way to achieve your size, weight and power requirements for wearable tech.
Would reducing your wearable tech ASIC development time by one year help your business?
Triad Semiconductor designs and manufactures patented reconfigurable wearable technology ASICs that will get your product to market a year faster and with a 70% reduction in development cost.
We combine mixed-signal IC design expertise, a rich library of circuit IP, and a unique and patented approach that delivers full-custom IC performance with rapid re-configurability.
Our reconfigurable ASIC approach means that you can create derivative versions of your IC and have new devices made in four weeks compared to the six months typically required for a full-customonly approach. Our customers are going from project kick-off to production in under one year using the Triad approach. The competition still takes two years to get typical full-custom only IC ready for production.
Our focus is on making high-precision, ultra-low power mixed-signal ASICs for our customers. Over the past ten years we have developed a rich library of building blocks and complete signal chains optimized for medical, fitness and wearable technology applications. Some of our IP useful in such applications includes:
We work with you to rapidly transform your requirements into your own reconfigurable mixed-signal ASIC. We utilize our expansive library of reconfigurable tiles combined with full-custom crafting of circuits where needed to achieve your performance goals.


NWSAPI Benchmark Tool
Choose a preset selector group
START
STOP
Every selector engine gets its own isolated iframe
Each iframe is destroyed and reset after being used
Tests are performed on a copy of W3C Selectors page
Based on ideas & concepts seen in Mootools Slickspeed
Uses the awesome
Benchmark.js
benchmarking library
Colors Legend
faster selection
slower selection
exception thrown
different result


Please fix the following errors:
The password must contain at least one number.
The password must be at least 10 characters long.
The password is valid!
Validate Password


T
- public interface QuerySpecification<T extends QuerySpecification>
QuerySpecification
is designed to represent queries posed to Cyc. Information about
the processing of a query is represented by Query
, which extends
this interface.ModifiableQuerySpecification
| Modifier and Type | Method and Description |
|---|---|
Collection<String> |
getCategories()
Returns the categories to which this query belongs.
|
Context |
getContext()
Returns the Context of this Query.
|
KbIndividual |
getId()
For saved queries (aka "KBQs") this returns the Cyc term that identifies the query.
|
InferenceParameterGetter |
getInferenceParameters()
Returns the inference parameters for this query.
|
Sentence |
getOriginalQuerySentence()
Returns the Sentence used to create this Query.
|
Sentence |
getQuerySentence()
Returns the Sentence which will be asked of Cyc, after all substitutions have been applied.
|
Sentence |
getQuerySentenceHypothesizedClause() |
Sentence |
getQuerySentenceMainClause() |
Set<Variable> |
getQueryVariables()
Returns a Collection of the variables in this query for which bindings are sought.
|
QueryRules |
getRules()
Returns a
QueryRules object which provides access to the rules for the query. |
Map<KbObject,Object> |
getSubstitutions()
Returns a map of the substitutions which have already been applied to the current query.
|
Set<KbObject> |
getUnresolvedIndexicals()
Returns a set of all remaining
#$IndexicalConcept s which the application must
resolve before the query can be run. |
KbIndividual getId()
ModifiableQuerySpecification.saveAs(String)
Sentence getOriginalQuerySentence() throws KbException
ModifiableQuerySpecification.setQuerySentence(com.cyc.kb.Sentence)
, this method will
return exactly the same Sentence every time it is called. Any substitutions made on the query
sentence (see getSubstitutions()
) will be reflected in a copy of this sentence,
accessible via getQuerySentence()
.KbException
Sentence getQuerySentence() throws KbException
getOriginalQuerySentence()
after ModifiableQuerySpecification.setSubstitutions(java.util.Map)
has been invoked.KbException
Context getContext()
InferenceParameterGetter getInferenceParameters()
For convenience, several of the most commonly used inference parameters may be also accessed from getters and setters which are directly on the Query object. Those parameters are:
:INFERENCE-MODE
):MAX-NUMBER
):MAX-TIME
):MAX-TRANSFORMATION-DEPTH
)Map<KbObject,Object> getSubstitutions()
com.cyc.query.QuerySpecification#setSubstitutions(java.util.Map)
,
com.cyc.query.QuerySpecification#addSubstitutions(java.util.Map)
,
getUnresolvedIndexicals()
,
com.cyc.query.Indexicals
Collection<String> getCategories()
ModifiableQuerySpecification#addCategory()
.QueryRules getRules() throws QueryConstructionException, KbException
QueryRules
object which provides access to the rules for the query.QueryConstructionException
KbException
Sentence getQuerySentenceMainClause() throws KbException
KbException
Sentence getQuerySentenceHypothesizedClause() throws KbException
KbException
Set<Variable> getQueryVariables() throws KbException
This method is essentially a trampoline to #getQuerySentence()#getVariables()
.
KbException
Set<KbObject> getUnresolvedIndexicals() throws KbException, SessionCommunicationException
#$IndexicalConcept
s which the application must
resolve before the query can be run. As such, this set does not include
automatically-resolvable indexicals, or indexicals which have already been resolved by
substitutions previously added to the Query.
This method is essentially a trampoline to #getQuerySentence()#getIndexicals()
. To
get all of the indexicals for a Query (unresolved or not) see
#getOriginalQuerySentence()#getIndexicals(boolean)
.
For a brief overview of indexicals, see KbObject.isIndexical()
.
KbException
SessionCommunicationException
KbObject.isIndexical()
,
Sentence.getIndexicals(boolean)
,
Sentence.replaceTerms(java.util.Map)
,
com.cyc.query.QuerySpecification#addSubstitutions(java.util.Map)
,
getSubstitutions()
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| collapsed |
Boolean |
undefined |
If specified, content of panel can be expanded and collapsed and determines the initial state. When option is specified in the controller, changing the
controller value changes the screen appearance.
|
| closable |
Boolean |
false |
Defines if content of panel can be hidden using close option (irreversible action). |
| toggleOrientation |
String |
vertical |
Defines orientation of toggle direction, valid values are "vertical" and "horizontal". |
| toggleDuration |
Number/String |
normal |
Defines the duration of the toggle effect, valid values are "slow", "normal", "fast" or a number in milliseconds. |
| closeDuration |
Number/String |
normal |
Defines the duration of the close effect, valid values are "slow", "normal", "fast" or a number in milliseconds. |


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.
Innovative Steam Technologies Inc.
Legal Name:
Innovative Steam Technologies Inc.
Operating Name:
Innovative Steam Technologies (IST)
Alternate Name:
Innovative Steam Technologies
Nicholls-Radtke Ltd.
Solar Turbines
Mailing Address:
549 Conestoga BlvdCAMBRIDGE, Ontario
N1R 7P5
Location Address:
549 Conestoga BlvdCAMBRIDGE, Ontario
N1R 7P5
Tel.:<PHONE_NUMBER>
Fax:<PHONE_NUMBER>
Logo
Company Profile
Innovative Steam Technologies (IST) engineers and manufactures Once-Through heat recovery Steam Generators (OTSGs) / 'boilers' to recover the heat from the gas turbine exhaust stream. IST also designs and manufactures Fired Once Through Steam Generators for Enhanced Oil Recovery applications.
ISTs Combined Cycle/ Cogeneration and Gas Turbine Injection Applications
In general OTSGs can be used by most electricity power plants and steam generating centers, various industrial complexes (semiconductor fabs, pulp & paper mills, textile manufacturers, glass manufacturers, etc.), mining corporations, large centers
requiring stable and flexible electricity (hotels, office buildings, hospitals, universities, sports complexes, factories, etc.), and even organizations that require large amounts of steam such as desalination plants.
IST is the only proven manufacturer of once through heat recovery steam generators (OTSG) in the world. IST has numerous advantages over conventional drum-type heat recovery steam generators including the following:
* Simple operation - steam drums and complex control systems are eliminated making the OTSG capable of remote attended or unmanned operation.
* Simple and economical site installation that minimizes site costs and associated project risks.
* Capable of dry operation, therefore a bypass stack is not required and the steam system can operate independent of the gas turbine.
* More efficient due to elimination of a bypass stack and associated leakage as well as blowdown losses.
* Chemical injection to the steam drum is not required, therefore this system is eliminated.
* Due to minimal instrumentation and drainability, a building enclosure is not required in severe climates. This eliminates a costly enclosure from the project.
* Lowest installed and life cycle costs.
Installed & life-cycle benefits of our OTSG boiler make it much more efficient & less expensive than drum-type boilers.
The above characteristics make the OTSG ideal for the following applications:
* Heat recovery in combined cycle and cogeneration plants.
* Heat recovery utilizing the waste heat from natural gas pipeline compressor drives.
* Heat recovery for steam injection for gas turbine NOx control, power augmentation and cooling purposes.
* Heat recovery & steam for pulp and paper mills, textile mills, manufacturing complexes, etc.
* Heat recovery for barge and marine based combined cycle plants
IST currently has 200+ OTSGs spread across six continents. Our technology has been examined and accepted by many customers including global players such as the following:
* GE Power Systems, USA
* NEL Power, UK
* Calpine, USA
* Altek Alarko, Turkey
* TransAlta Utilities, Canada, USA, New Zealand
* GE Nuovo Pignone, Italy
* Westcoast Energy, Canada
* TransCanada PipeLines, Canada
* Solar Turbines, USA, Australia
* Alstom (ABB Power Generation), Puerto Rico
Our size range currently handles gas turbines from 5 to 75 MW, plus LMS100 for combined cycle and cogeneration applications and the entire gas turbine range for steam injection/cooling applications
ISTs Fired OTSGs for Enhanced Oil Recovery Applications
In addition to ISTs traditional products IST is now designing, manufacturing and installing OTSGs for key oil producing markets such as Alberta, California, Oman, Venezuela and Texas.
We produce different sizes of units with varying levels of thermal capacity.
Full profile
Full profile
Contact information
Company description
Product / Service / Licensing
Once-Through heat recovery Steam Generators (OTSGs) / 'boilers'
to recover the heat from electric power plant's gas turbine
exhaust stream. OTSGs can be used by most electricity power
plants and steam generating centers, various industrial
complexes (semiconductor fabs, pulp & paper mills, textile
manufacturers, glass manufacturers, etc.), mining corporations,
large centers requiring stable and flexible electricity
(hotels, office buildings, hospitals, universities, sports
complexes, factories, etc.), and even organizations that
require large amounts of steam such as desalination plants.
Our boiler size range currently handles gas turbines from 5 to
60 MW for combined cycle and cogeneration applications and the
entire gas turbine range for steam injection/cooling
applications.
2895-Miscellaneous Engines and Components
3040-Miscellaneous Power Transmission Equipment
4410-Industrial Boilers
4420-Heat Exchangers and Steam Condensers
5975-Electrical Hardware and Supplies
6115-Generators and Generators Sets, Electrical
6150-Miscellaneous Electric Power and Distribution Equipment
C114-Hospital Buildings
C115-Industrial Buildings
C123-Electric Power Generation (EPG)
C124-Utilities
Technology profile
Power Generation Sector
The OTSGs are simple, continuous flow boilers that convert feedwater into high purity steam. The OTSGs are best suited technically and economically for combined cycle power
generation, cogeneration and gas turbine power augmentation applications.
The OTSG has many notable features mainly, full dry running capabilities, which eliminates the need for a bypass stack and damper. The OTSG requires significantly fewer parts and the installation is accomplished faster and at a much lower cost than the typical drum-type HRSGs, due to the relatively higher amount of factory assembly and testing that is completed prior to shipment. The system has a once through flow path; therefore no steam drums or blowdown systems are required. The OTSG demonstrates a significant improvement over the natural circulation drum-type units. It offers high availability, proven experience, and cost savings benefits.
Enhanced Oil Recovery
Fired Once Through Steam Generator
- Generate saturated steam with quality 300 MMBtu/hr
- Boiler designed to ASME Section I and American Petroleum Institute (API) specifications
- Piping designed to ASME B31.1
- Operating pressures up to 2500psi
Radiant Module
- Cylinder diameter from 30 ft
- Cylinder length about 3x diameter
- Single-circuit or multi-circuit design
- Multi-circuits can be either parallel-pass or circuit-by-sector design
Internally insulated with ceramic fibre blanket, modules and refractory. Casing is carbon steel.
Convective Module
- Consists of a serpentine finned tube module
- Tubesheets at the ends are carbon steel with refractory installed on the hot side
- Intermediate tubesheets may be necessary for larger convective sections
- Single circuit or multi-circuit design
- Multi-circuits can be either parallel-pass or circuit-by-sector design
Fuel
- Natural gas, oils, process and bi-product fuels are suitable
Market profile
Alliances:
- Technology
Strategic alliances:
IST has offices in North America and Europe. We havepartnership agreements with Asian companies. We ecourage all
forms of interaction for business development.
Industry sector market interests:
- Construction
- Manufacturing
- Mining/Petroleum/Gas
Geographic markets:
Export experience:
- Australia
- Brazil
- China
- Cuba
- India
- Japan
- Korea, Republic of
- New Zealand
- Puerto Rico
- Taiwan
- United Kingdom
- United States
- United States Minor Outlying Islands
Actively pursuing:
- Algeria
- Argentina
- Bangladesh
- Brunei Darussalam
- Cambodia
- Cameroon
- Chile
- Colombia
- Cook Islands
- Egypt
- Fiji
- Guam
- Hong Kong
- Indonesia
- Iran, Islamic Republic of
- Israel
- Korea, Democratic People's Republic of
- Kyrgyzstan
- Lao People's Democratic Republic
- Macao
- Malaysia
- Maldives
- Mali
- Malta
- Mexico
- Micronesia, Federated States of
- Northern Mariana Islands
- Pakistan
- Papua New Guinea
- Philippines
- Qatar
- Romania
- Saudi Arabia
- Singapore
- Solomon Islands
- Sri Lanka
- Thailand
- Turkey
- United Arab Emirates
- Uzbekistan
- Venezuela, Bolivarian Republic of
- Viet Nam
- Yemen
Sector information
Total plant size:
72,000 square foot manufacturing facility in Cambridge, Ontario
2 - 20' x 20' access doors
1 - 14' x 14' access door
1 - 10' x 10' access door
Rail access at rear of plant
Cranes and Capacities
3 - 10 Ton Cranes
3 - 5 Ton Cranes
2 - 2 Ton Crane
Welding Capabilities
CWB Approved to C.S.A. - W47.1 Div.2
ASME S, U, PP Approved
SMAW
GMAW
GTAW
Automatic TIG Orbital Welding of tubing 0.5"dia to 1.5" OD
Tube Bending
Diameter 0.5" - 1.50"
Multiple axis bends
Current minimum thickness 0.049"
Miscellaneous
NC Plasma with 8 ft x 20 ft downdraft table
Waterjet
10 ft x 12 ft water jet cutting machine provides an efficient, cost effective way of accurately profile cutting Stainless Steel, Aluminum, Brass, Copper, Steel, Glass, Ceramics and Composite materials that are difficult to cut by alternative methods such as laser cutting. Accuracy up to +/- 0.005".
Tubesheet Drilling
Twin spindle machine with automatic tool changer, optimized performance with carbide insert tooling and complete chip recovery.
Tube Finning Capabilities
The finning of the heat transfer tubes is a proprietary process that was developed by IST. This unique method, of brazing fins to the tubes, promotes effective heat transfer and reduces corrosion effects. The current capabilities of our finning process are as follows:
Outside Tube Diameter: 0.75" to 1.50"
Tube Thickness: Our current minimum thickness is 0.049 " MW
Finished fin height: 0.250" to 0.500"
Fin pitches: Extensive experience up to 10 fins per inch
Fin type: Solid fin
Overall fin OD: 1.25" to 2.50" +/- 0.015"
Tube Length: 10ft minimum to 60ft maximum
Tube material: incoloy / stainless steel
Fin material: carbon steel, 300 series stainless, 400 series stainless
Brazing conditions: induction heat in inert atmosphere
Tube cleanliness: free of traces of dirt, grease, drawing lubricant
Unique applications:
Gas Turbine Injection (GTI)This process consists of injecting steam into the head end of the combustor of gas turbines, reducing unabated NOx emissions; and into the compressor discharge, increasing mass flow and power output.
GTI delivers one of the lowest cost per kW* for incremental power, especially when considering the higher capital and installation cost of building a larger plant.
Gas Turbine Injection has been proven to be a highly reliable method of improving gas turbine performance.
Key / Major clients:
SNC Lavalin Constructors Inc. Toronto, Ontario, Canada
Greater Toronto
Airports Authority,
GTAA Cogeneration Plant
McBurney Gaffney, South Carolina, USA
Calpine,
Broad River Energy Center
Delta Hudson Strathmore, Alberta, Canada
Encana Power,
Cavalier Power Station
Stone & Webster Centralia, Washington, USA
TransAlta Corporation,
Big Hanaford Power Station
Europower Gorizia, Italy
ElettroGorizia,
Gorizia Power Plant
Black and Veatch Lihue, Kauai, Hawaii, USA
Kauai Island Utility Co-operative,
Kapaia Power Station
Signa Energy Solutions
Babylon, New York, USA
Pinelawn Power LLC,
Pinelawn Power Station
Success stories:
Delta Hudson Strathmore, Alberta, Canada Encana Power,
Cavalier Power Station
Project Description
The Cavalier Power Station was built in 2001to provide power for the Calgary area. The 228 MW combined cycle plant is optimized to
achieve a schedule of daily start-stops, without requiring additional capital investment or loss of operational efficiency.
IST was contracted to supply four (4) OTSGs for the Cavalier Power Station. The four (4) OTSGs were built with HP and IP steam circuits, and also included SCR and CO systems for emissions control. The plant also features four (4) x 43 MW LM6000 gas turbines and two (2) x 28 MW steam turbines.
The customer selected OTSGs because they are ideally suited for cycling applications due to the elimination of drums and other thick walled pressure parts. The thin walled tube design and high-grade tube material permits regular start-stop operation without the thermal stress concerns usually associated with drum-type HRSGs.
OTSGs are capable of extremely fast startups and are typically able to
supply full steam loads within 60 minutes. Since OTSGs start from a dry condition, there is no requirement to slowly heat the water contained within drums. The fast startup of OTSGs allow both gas turbines to reach full load and SCRs to achieve their minimum operating temperature much quicker than traditional drum HRSGs.
SNC Lavalin Constructors Inc.
Toronto, Ontario, Canada
Greater Toronto
Airports Authority,
GTAA Cogeneration Plant
Project Description
The GTAA Combined Cycle Power Plant was constructed in 2005 to provide electrical power, cooling and heating for the Lester B Pearson International Airport. The 112 MW GTAA power plant is optimized to achieve low cost operation and reliable power delivery for Torontos main airport. IST was contracted to supply two (2) OTSGs for the GTAA Combined Cycle plant. The OTSGs were built with HP and LP steam circuits. The plant also features two (2) x 43 MW LM6000 gas turbines and one (1) steam turbine.
The customer selected OTSGs because they are ideally suited for a
combined cycle application due to their efficient steam production and flexible operation. OTSGs are capable of extremely fast startups and are typically able to supply full steam loads within 60 minutes. Since OTSGs start from a dry condition, there is no requirement to slowly heat the water contained within the drum. The fast startup of OTSGs allow both the gas turbines to reach full load much quicker than traditional drum HRSGs.
Testimonial:
"ISTs Once Through Steam Generator (OTSG) is highly efficient in recovering our gas turbines exhaust heat in the form of super-heated steam. The steam is injected back into the gas turbine in two ways; first, adding mass flow to the combustor which increases MW output without burning additional fuel, and secondly, into the fuel nozzles which greatly reduces NOx emissions and demand on the plants SCR system. Since commissioning in 2002, maintenance on this highly reliable boiler has been minimal, and the fast startup time enables us to get the power plant on line, with full steam injection in less than one hour."Ken Daubert
Plant Superintendent
KIUC Kapaia Power Station
Lihue, Kauai, Hawaii, USA
"This plant was designed as a base load plant but with the change in our market we had to change to a peaking operation. Our Once Through boilers allow us the flexibility to start up from cold quickly in combined cycle each morning or run dry in simple cycle if it is a short duration peak. We are able to do this without a high maintenance bypass stack or concern of drum temperature stresses and economizer corrosion. The Once Through boilers start from cold quickly, easily and reliably each morning with a minimal amount of steam conditioning required. This allows us to generate an extra
15 to 20 MWH's each morning compared to a conventional HRSG."
Kelly Creasy
Maintenance Coordinator
Encana Power
Cavalier Power Station
Strathmore, Alberta, Canada
"The Once Through system is helping our plant get a better return for our investment. We are not wasting water and chemicals, which we would be wasting if we had a traditional boiler within this configuration. We are matching steam production to our steam demands, with no need to vent the waste steam up into the atmosphere; there is no waste steam to deal with. The greatest benefit is the flexibility the Once Through boiler brings to the facility because you just produce the steam you require."
Fabio Schuler
Plant Manager
Whitby Cogeneration Limited Partnership
Whitby, Ontario, Canada
"Materials in the IST units are of a higher grade. My belief is the operations costs will be less, we will have less problems with corrosion and deterioration because the material is better than a conventional HRSG from the get go. When it comes to cost I look at it this way that sweet taste of first cost is long forgotten with the bitter taste of trying to make it work over 20 years. Once Through is going to be cheaper in the long run."
Darrell Jenkins
Owner Operator Developer
Difazio Electric
Deer Park, New York, USA
International capital projects:
NEL Power Isle of Man, UKManx Electricity Authority,
Pulrose Power Station
Project Description
The Pulrose Power Station was constructed to provide the Isle of Man with its own source of economical power allowing the Island to be less dependent on diesel engines and cable power supplied from England. In addition to efficiency, the size and visual appearance of the plant was critical due to the location within a populated tourist area and limited space availability to house the generating equipment. Because of the tight schedule for the combined cycle plant, the two (2) OTSGs, gas turbines and steam turbines were installed after the construction of the building. The plant (2x2x1) has a full dry run capability, eliminating the requirement for a bypass stack and diverter valve.
The steam generation equipment was selected to provide the plant
with safe and reliable operation for 365 days a year, fast startups, small footprint, and a simple cycle dry run capability at the most cost competitive price.
ISTs two (2) OTSGs were built with HP and LP steam circuits and they also included exhaust ducts which combined with the three (3) diesel engine exhausts streams to form one main plant stack.
MAN Ferrostaal Power Industry GmbH
Wuppertal, Germany
Wuppertaler Stadtwerke AG,
Wuppertal-Barmen Heating
Power Station
Project Description
The Wuppertal Combined Cycle Power Plant was constructed in 2005 to provide electrical power and district heating for the town of Wuppertal, Germany. The 65 MW combined cycle plant is optimized to achieve low cost operation, flexible steam production and reliable power delivery for the German market.
IST was contracted to supply two (2) OTSGs for the Wuppertal Combined Cycle plant. The OTSGs were built with HP and LP steam circuits, SCR and CO systems for emissions control. The plant also features two (2) x 25 MW H25 gas turbines and one (1) steam turbine.
The customer selected OTSGs because they are ideally suited for a
combined cycle application due to their efficient steam production and flexible operation. OTSGs are capable of extremely fast startups and are typically able to supply full steam loads within 60 minutes.
Since OTSGs start from a dry condition, there is no requirement to slowly heat the water contained within drums. The fast startup of OTSGs allow both the gas turbines to reach full load and the SCRs to achieve their minimum operating temperature much quicker than traditional drum HRSGs.
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
Once-Through heat recovery Steam Generators (OTSGs) / 'boilers'
to recover the heat from electric power plant's gas turbine
exhaust stream. OTSGs can be used by most electricity power
plants and steam generating centers, various industrial
complexes (semiconductor fabs, pulp & paper mills, textile
manufacturers, glass manufacturers, etc.), mining corporations,
large centers requiring stable and flexible electricity
(hotels, office buildings, hospitals, universities, sports
complexes, factories, etc.), and even organizations that
require large amounts of steam such as desalination plants.
Our boiler size range currently handles gas turbines from 5 to
60 MW for combined cycle and cogeneration applications and the
entire gas turbine range for steam injection/cooling
applications.
2895-Miscellaneous Engines and Components
3040-Miscellaneous Power Transmission Equipment
4410-Industrial Boilers
4420-Heat Exchangers and Steam Condensers
5975-Electrical Hardware and Supplies
6115-Generators and Generators Sets, Electrical
6150-Miscellaneous Electric Power and Distribution Equipment
C114-Hospital Buildings
C115-Industrial Buildings
C123-Electric Power Generation (EPG)
C124-Utilities
Technology
Technology profile
Power Generation Sector
The OTSGs are simple, continuous flow boilers that convert feedwater into high purity steam. The OTSGs are best suited technically and economically for combined cycle power
generation, cogeneration and gas turbine power augmentation applications.
The OTSG has many notable features mainly, full dry running capabilities, which eliminates the need for a bypass stack and damper. The OTSG requires significantly fewer parts and the installation is accomplished faster and at a much lower cost than the typical drum-type HRSGs, due to the relatively higher amount of factory assembly and testing that is completed prior to shipment. The system has a once through flow path; therefore no steam drums or blowdown systems are required. The OTSG demonstrates a significant improvement over the natural circulation drum-type units. It offers high availability, proven experience, and cost savings benefits.
Enhanced Oil Recovery
Fired Once Through Steam Generator
- Generate saturated steam with quality 300 MMBtu/hr
- Boiler designed to ASME Section I and American Petroleum Institute (API) specifications
- Piping designed to ASME B31.1
- Operating pressures up to 2500psi
Radiant Module
- Cylinder diameter from 30 ft
- Cylinder length about 3x diameter
- Single-circuit or multi-circuit design
- Multi-circuits can be either parallel-pass or circuit-by-sector design
Internally insulated with ceramic fibre blanket, modules and refractory. Casing is carbon steel.
Convective Module
- Consists of a serpentine finned tube module
- Tubesheets at the ends are carbon steel with refractory installed on the hot side
- Intermediate tubesheets may be necessary for larger convective sections
- Single circuit or multi-circuit design
- Multi-circuits can be either parallel-pass or circuit-by-sector design
Fuel
- Natural gas, oils, process and bi-product fuels are suitable
Market
Market profile
Alliances:
- Technology
Strategic alliances:
IST has offices in North America and Europe. We havepartnership agreements with Asian companies. We ecourage all
forms of interaction for business development.
Industry sector market interests:
- Construction
- Manufacturing
- Mining/Petroleum/Gas
Geographic markets:
Export experience:
- Australia
- Brazil
- China
- Cuba
- India
- Japan
- Korea, Republic of
- New Zealand
- Puerto Rico
- Taiwan
- United Kingdom
- United States
- United States Minor Outlying Islands
Actively pursuing:
- Algeria
- Argentina
- Bangladesh
- Brunei Darussalam
- Cambodia
- Cameroon
- Chile
- Colombia
- Cook Islands
- Egypt
- Fiji
- Guam
- Hong Kong
- Indonesia
- Iran, Islamic Republic of
- Israel
- Korea, Democratic People's Republic of
- Kyrgyzstan
- Lao People's Democratic Republic
- Macao
- Malaysia
- Maldives
- Mali
- Malta
- Mexico
- Micronesia, Federated States of
- Northern Mariana Islands
- Pakistan
- Papua New Guinea
- Philippines
- Qatar
- Romania
- Saudi Arabia
- Singapore
- Solomon Islands
- Sri Lanka
- Thailand
- Turkey
- United Arab Emirates
- Uzbekistan
- Venezuela, Bolivarian Republic of
- Viet Nam
- Yemen
Sector
Sector information
Total plant size:
72,000 square foot manufacturing facility in Cambridge, Ontario
2 - 20' x 20' access doors
1 - 14' x 14' access door
1 - 10' x 10' access door
Rail access at rear of plant
Cranes and Capacities
3 - 10 Ton Cranes
3 - 5 Ton Cranes
2 - 2 Ton Crane
Welding Capabilities
CWB Approved to C.S.A. - W47.1 Div.2
ASME S, U, PP Approved
SMAW
GMAW
GTAW
Automatic TIG Orbital Welding of tubing 0.5"dia to 1.5" OD
Tube Bending
Diameter 0.5" - 1.50"
Multiple axis bends
Current minimum thickness 0.049"
Miscellaneous
NC Plasma with 8 ft x 20 ft downdraft table
Waterjet
10 ft x 12 ft water jet cutting machine provides an efficient, cost effective way of accurately profile cutting Stainless Steel, Aluminum, Brass, Copper, Steel, Glass, Ceramics and Composite materials that are difficult to cut by alternative methods such as laser cutting. Accuracy up to +/- 0.005".
Tubesheet Drilling
Twin spindle machine with automatic tool changer, optimized performance with carbide insert tooling and complete chip recovery.
Tube Finning Capabilities
The finning of the heat transfer tubes is a proprietary process that was developed by IST. This unique method, of brazing fins to the tubes, promotes effective heat transfer and reduces corrosion effects. The current capabilities of our finning process are as follows:
Outside Tube Diameter: 0.75" to 1.50"
Tube Thickness: Our current minimum thickness is 0.049 " MW
Finished fin height: 0.250" to 0.500"
Fin pitches: Extensive experience up to 10 fins per inch
Fin type: Solid fin
Overall fin OD: 1.25" to 2.50" +/- 0.015"
Tube Length: 10ft minimum to 60ft maximum
Tube material: incoloy / stainless steel
Fin material: carbon steel, 300 series stainless, 400 series stainless
Brazing conditions: induction heat in inert atmosphere
Tube cleanliness: free of traces of dirt, grease, drawing lubricant
Unique applications:
Gas Turbine Injection (GTI)This process consists of injecting steam into the head end of the combustor of gas turbines, reducing unabated NOx emissions; and into the compressor discharge, increasing mass flow and power output.
GTI delivers one of the lowest cost per kW* for incremental power, especially when considering the higher capital and installation cost of building a larger plant.
Gas Turbine Injection has been proven to be a highly reliable method of improving gas turbine performance.
Key / Major clients:
SNC Lavalin Constructors Inc. Toronto, Ontario, Canada
Greater Toronto
Airports Authority,
GTAA Cogeneration Plant
McBurney Gaffney, South Carolina, USA
Calpine,
Broad River Energy Center
Delta Hudson Strathmore, Alberta, Canada
Encana Power,
Cavalier Power Station
Stone & Webster Centralia, Washington, USA
TransAlta Corporation,
Big Hanaford Power Station
Europower Gorizia, Italy
ElettroGorizia,
Gorizia Power Plant
Black and Veatch Lihue, Kauai, Hawaii, USA
Kauai Island Utility Co-operative,
Kapaia Power Station
Signa Energy Solutions
Babylon, New York, USA
Pinelawn Power LLC,
Pinelawn Power Station
Success stories:
Delta Hudson Strathmore, Alberta, Canada Encana Power,
Cavalier Power Station
Project Description
The Cavalier Power Station was built in 2001to provide power for the Calgary area. The 228 MW combined cycle plant is optimized to
achieve a schedule of daily start-stops, without requiring additional capital investment or loss of operational efficiency.
IST was contracted to supply four (4) OTSGs for the Cavalier Power Station. The four (4) OTSGs were built with HP and IP steam circuits, and also included SCR and CO systems for emissions control. The plant also features four (4) x 43 MW LM6000 gas turbines and two (2) x 28 MW steam turbines.
The customer selected OTSGs because they are ideally suited for cycling applications due to the elimination of drums and other thick walled pressure parts. The thin walled tube design and high-grade tube material permits regular start-stop operation without the thermal stress concerns usually associated with drum-type HRSGs.
OTSGs are capable of extremely fast startups and are typically able to
supply full steam loads within 60 minutes. Since OTSGs start from a dry condition, there is no requirement to slowly heat the water contained within drums. The fast startup of OTSGs allow both gas turbines to reach full load and SCRs to achieve their minimum operating temperature much quicker than traditional drum HRSGs.
SNC Lavalin Constructors Inc.
Toronto, Ontario, Canada
Greater Toronto
Airports Authority,
GTAA Cogeneration Plant
Project Description
The GTAA Combined Cycle Power Plant was constructed in 2005 to provide electrical power, cooling and heating for the Lester B Pearson International Airport. The 112 MW GTAA power plant is optimized to achieve low cost operation and reliable power delivery for Torontos main airport. IST was contracted to supply two (2) OTSGs for the GTAA Combined Cycle plant. The OTSGs were built with HP and LP steam circuits. The plant also features two (2) x 43 MW LM6000 gas turbines and one (1) steam turbine.
The customer selected OTSGs because they are ideally suited for a
combined cycle application due to their efficient steam production and flexible operation. OTSGs are capable of extremely fast startups and are typically able to supply full steam loads within 60 minutes. Since OTSGs start from a dry condition, there is no requirement to slowly heat the water contained within the drum. The fast startup of OTSGs allow both the gas turbines to reach full load much quicker than traditional drum HRSGs.
Testimonial:
"ISTs Once Through Steam Generator (OTSG) is highly efficient in recovering our gas turbines exhaust heat in the form of super-heated steam. The steam is injected back into the gas turbine in two ways; first, adding mass flow to the combustor which increases MW output without burning additional fuel, and secondly, into the fuel nozzles which greatly reduces NOx emissions and demand on the plants SCR system. Since commissioning in 2002, maintenance on this highly reliable boiler has been minimal, and the fast startup time enables us to get the power plant on line, with full steam injection in less than one hour."Ken Daubert
Plant Superintendent
KIUC Kapaia Power Station
Lihue, Kauai, Hawaii, USA
"This plant was designed as a base load plant but with the change in our market we had to change to a peaking operation. Our Once Through boilers allow us the flexibility to start up from cold quickly in combined cycle each morning or run dry in simple cycle if it is a short duration peak. We are able to do this without a high maintenance bypass stack or concern of drum temperature stresses and economizer corrosion. The Once Through boilers start from cold quickly, easily and reliably each morning with a minimal amount of steam conditioning required. This allows us to generate an extra
15 to 20 MWH's each morning compared to a conventional HRSG."
Kelly Creasy
Maintenance Coordinator
Encana Power
Cavalier Power Station
Strathmore, Alberta, Canada
"The Once Through system is helping our plant get a better return for our investment. We are not wasting water and chemicals, which we would be wasting if we had a traditional boiler within this configuration. We are matching steam production to our steam demands, with no need to vent the waste steam up into the atmosphere; there is no waste steam to deal with. The greatest benefit is the flexibility the Once Through boiler brings to the facility because you just produce the steam you require."
Fabio Schuler
Plant Manager
Whitby Cogeneration Limited Partnership
Whitby, Ontario, Canada
"Materials in the IST units are of a higher grade. My belief is the operations costs will be less, we will have less problems with corrosion and deterioration because the material is better than a conventional HRSG from the get go. When it comes to cost I look at it this way that sweet taste of first cost is long forgotten with the bitter taste of trying to make it work over 20 years. Once Through is going to be cheaper in the long run."
Darrell Jenkins
Owner Operator Developer
Difazio Electric
Deer Park, New York, USA
International capital projects:
NEL Power Isle of Man, UKManx Electricity Authority,
Pulrose Power Station
Project Description
The Pulrose Power Station was constructed to provide the Isle of Man with its own source of economical power allowing the Island to be less dependent on diesel engines and cable power supplied from England. In addition to efficiency, the size and visual appearance of the plant was critical due to the location within a populated tourist area and limited space availability to house the generating equipment. Because of the tight schedule for the combined cycle plant, the two (2) OTSGs, gas turbines and steam turbines were installed after the construction of the building. The plant (2x2x1) has a full dry run capability, eliminating the requirement for a bypass stack and diverter valve.
The steam generation equipment was selected to provide the plant
with safe and reliable operation for 365 days a year, fast startups, small footprint, and a simple cycle dry run capability at the most cost competitive price.
ISTs two (2) OTSGs were built with HP and LP steam circuits and they also included exhaust ducts which combined with the three (3) diesel engine exhausts streams to form one main plant stack.
MAN Ferrostaal Power Industry GmbH
Wuppertal, Germany
Wuppertaler Stadtwerke AG,
Wuppertal-Barmen Heating
Power Station
Project Description
The Wuppertal Combined Cycle Power Plant was constructed in 2005 to provide electrical power and district heating for the town of Wuppertal, Germany. The 65 MW combined cycle plant is optimized to achieve low cost operation, flexible steam production and reliable power delivery for the German market.
IST was contracted to supply two (2) OTSGs for the Wuppertal Combined Cycle plant. The OTSGs were built with HP and LP steam circuits, SCR and CO systems for emissions control. The plant also features two (2) x 25 MW H25 gas turbines and one (1) steam turbine.
The customer selected OTSGs because they are ideally suited for a
combined cycle application due to their efficient steam production and flexible operation. OTSGs are capable of extremely fast startups and are typically able to supply full steam loads within 60 minutes.
Since OTSGs start from a dry condition, there is no requirement to slowly heat the water contained within drums. The fast startup of OTSGs allow both the gas turbines to reach full load and the SCRs to achieve their minimum operating temperature much quicker than traditional drum HRSGs.


Installation¶
Installing via pip¶
To install the PySD package from the Python package index into an established Python environment, use the pip command:
pip install pysd
Installing from source¶
To install from the source, clone the project with git:
git clone https://github.com/JamesPHoughton/pysd.git
Or download the latest version from the project webpage: https://github.com/JamesPHoughton/pysd
In the source directory use the command
python setup.py install
Required Dependencies¶
PySD was originally built on python 2.7. Hoewever, the last version requires at least python 3.7.
PySD calls on the core Python data analytics stack, and a third party parsing library:
Numpy
Scipy
Pandas
Matplotlib
Parsimonious
black
openpyxl
These modules should build automatically if you are installing via pip. If you are building from the source code, or if pip fails to load them, they can be loaded with the same pip syntax as above.
Optional Dependencies¶
These Python libraries bring additional data analytics capabilities to the analysis of SD models:
PyMC: a library for performing Markov chain Monte Carlo analysis
Scikit-learn: a library for performing machine learning in Python
NetworkX: a library for constructing networks
GeoPandas: a library for manipulating geographic data
Additionally, the System Dynamics Translator utility developed by Robert Ward is useful for translating models from other system dynamics formats into the XMILE standard, to be read by PySD.
These modules can be installed using pip with syntax similar to the above.
Additional Resources¶
The PySD Cookbook contains recipes that can help you get set up with PySD.