uncleflo

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Some cool dude. Higher order of decision making. Absolute.

Registered since September 28th, 2017

Has a total of 3739 bookmarks.

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Timber for Marine and Fresh Water Construction

https://scbrims.files.wordpress.com/2013/10/timber-for-marine-and-fresh-water.pdf

Saved by uncleflo on January 2nd, 2020.

The aim of this publication is to describe the use of timber for marine and fresh water constructional purposes. It indicates how timber can provide a solution to many of the problems confronting dock, harbour and river board engineers and others, concerned with water construction. With a knowledge of the hazards to which timber may be exposed, and careful selection of the species with the most appropriate properties for the job, a satisfactory and long lasting structure can be obtained at relatively low cost. The principle functions of marine and fresh water structures where timber is utilized and which are described here are:- (a) The prevention of erosion of the sea coast and of river and canal banks. (b) The construction of wharfs, jetties, docks and dock gates, and the protection of such structures by fendering and rubbing pieces. (c) The construction of marinas and yacht havens.

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Marine Air Conditioning

https://www.fischerpanda.co.uk/Marin_Air_Conditioning.html

Saved by uncleflo on December 19th, 2019.

As the name implies, air-conditioning is defined as the treatment of air to modify the internal environment in terms of temperature, humidity and fresh air content. Air-Conditioning systems reject heat from the space to be cooled into the surrounding seawater via the refrigerant flow in the sea-water cooled condenser. Vehicle systems operate in a very similar way to commercial systems - the heat is rejected to the outside environment via an air cooled condenser. The air-conditioning process varies according to the application, from simple comfort-cooling to sophisticated total environmental control systems. Fischer Panda can provide either simple, spot cooling for problem areas or accurately control the whole on-board environment. Be it a 30' cabin cruiser or a 300'+ multi deck passenger vessel. We can design a system to suit your application. See our notes on basic System Design.

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K40 C02 Laser Rail System | OpenBuilds

https://openbuilds.com/builds/k40-c02-laser-rail-system.5270/

Saved by uncleflo on December 19th, 2019.

The goal of this build was to use as many off-the-shelf Openbuilds components as possible, leveraging bundles to simplify the build further. Still, there are a few pieces that need to be custom printed, such as the mirror and laser head mounting plates and the Mini V gantry shims. The gantry shims are essential to ensuring the height remains consistent as the beam travels from mirror to mirror. The main problem with stock "Cheap Chinese" "K40" 40W CO2 Laser cutters commonly purchased off of eBay is that they use custom, hard-to-find hardware of often questionable quality and consistency. Also, their chassis separates the tube and its fixed X Stage mirror from the moving Y Stage, thus making it nearly impossible to ensure the mirror heights stay consistent. This creates a needlessly painful alignment problem that many people constantly suffer from. Still, the core laser components provided in a stock K40 are serviceable, so the hope is that this replacement rail system will allow for a relatively affordable modification option that drastically simplifies the alignment process by improving the component quality and integrates the stages together to effectively turn a 3 dimensional alignment into a 2 dimensional one.

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AWS RDS Aurora | CLUSTER DEMO | Cross Region Replica, Types of Endpoints, HA & Fully Managed - YouTube

https://www.youtube.com/watch?v=fpkQ0zefud8

Saved by uncleflo on May 27th, 2019.

Let's learn Amazon Aurora Database from scratch. What are new features of Aurora over RDS? How to achieve HA with Aurora Cluster? What are different types of Endpoints with Aurora? Aurora compatibility with MySQL & PostgreSQL. Reader, Writer & Custom Endpoints in Aurora Cluster.

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Support Technology and Programs for AWS | AWS Support

https://aws.amazon.com/premiumsupport/

Saved by uncleflo on May 24th, 2019.

At AWS, Support goes beyond break-fix and issue resolution. AWS Support provides a mix of tools and technology, people, and programs designed to proactively help you optimize performance, lower costs, and innovate faster. We save time for your team by helping you to move faster in the cloud and focus on your core business. AWS Support brings Amazon’s tradition of customer-obsession to the B2B technology world. We focus on helping you achieve the outcomes you need to make your business successful.

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Electric Boats, In General

http://www.growleymonster.com/eboat/eboatsgeneral.html

Saved by uncleflo on February 23rd, 2019.

Have you just bought an old sailboat with a dead or dying engine? You might have a boat worth less than a third of what a new diesel would cost, and you don't want to buy a used engine and inherit someone else's cast-off problems. Or maybe you are tired of smelling fuel, buying fuel, spilling fuel, running out of fuel, or hearing a smoke belching valve clattering clankasaurus hard at work, or crossing your fingers and hoping it will start when you actually need it. There are a lot of reasons to repower with electric drive. Electric is not for everyone. It has a lot of cons to balance out the obvious pros. But one con that is widely diseminated by self proclaimed experts is that it is expensive, and that is not necessarily the case at all. It is quite possible to replace that cranktankerous old infernal combustion engine very cheaply indeed. I did it, for less than $2500. I didn't know it at the time, but I could have spent even less.

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www.jonesboatyard.co.uk - Boat Users Guide - PDF

http://www.jonesboatyard.co.uk/media/pdfs/boat-users-guide.pdf

Saved by uncleflo on December 20th, 2018.

Inland boating is a safe and relaxing activity if a bit of time and consideration is given to safety. Although the river may appear calm and tranquil, problems can occur, therefore please read this carefully to maximise the enjoyment of your cruising experience.

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Torsen differential, how does it work

https://learnengineering.org/torsen-differential-how-does-it-work/

Saved by uncleflo on November 28th, 2018.

Torsen is a trade mark of the JTEKT Corporation. The Torsen differential has many patented components and, is the most unique and ingenious method of providing differential action while overcoming the traction difference problem. This article gives a logical introduction to the working of Torsen differential. If you are familiar with the other common technologies used to overcome the traction difference problem, you might have noticed a great advantage of the Torsen. While the other technologies allow the drive wheel to slip for a limited amount of time before it gets locked, in Torsen the locking action is instantaneous. That means as soon as the vehicle encounters a traction difference track the wheels will get locked. They are also compact compared to their counter parts.

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10 Drone Safety Tips for a Safe Flight

https://store.dji.com/guides/10-drone-safety-tips-safe-flight/

Saved by uncleflo on November 27th, 2018.

Are you an ace pilot or even a brand new pilot who just got a fancy new DJI drone and can’t wait to fly? Yes, you are? Great, you might be wondering what commonality you both share, one of you a grizzled veteran pilot with thousands of hours of flight time under your belt and the other still with their training wings on. Well, both of you can still have an “opps” moment during a flight which could lead to unfortunate drone mishap. So, to help you avoid any mishaps here are some pre-flight and post-landing drone safety tips that can help minimize a lot of potential problems for the experienced pilots and help the beginner’s confidence soar! These 10 drone safety tips for a safe flight may sound simple, however, not paying attention could lead to an easily avoided crash. They take practically no time to follow but are beyond priceless, so do yourself a favor and keep these 10 safety tips in mind when flying your drone.

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ANSWERED: Time limit on live streaming

https://community.theta360.guide/t/answered-time-limit-on-live-streaming/1658

Saved by uncleflo on October 23rd, 2018.

I read that there is a 25 minute limit on live streaming with the theta v? Why is this? Do you know if it can be changed? I was doing test with both 4K live streaming 2 and spatial audio 3. I don’t know the technical reason for this or if it can be fixed with software in the future. I’ll ask around. Update: I am closing this topic to help other people find the info they are looking for. The answer is that there is no time limit on live streaming. I’ve tested it for more than 2 hours. My test was in an air-conditioned room. We do not know if there will be overheating problems in the future, but we know that there is no technical limit on live-streaming.

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IxLoad - L4-7 performance testing for multiplay services, application delivery platforms, and network security appliances

https://www.ixiacom.com/products/ixload

Saved by uncleflo on October 23rd, 2018.

Measure the quality of experience of real-time, business-critical applications with converged multiplay service emulations. Problem: Endangered quality of experience. In today’s highly competitive landscape, organizations must meet stringent network quality requirements to deliver the best customer experience. However, a widening array of multimedia applications, and an increasing number of users, is making it harder—and more expensive—than ever to validate converged multiplay services and application delivery platforms. Without a way to properly test these services, customer quality of experience is at risk.

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UTF-8 all the way through

https://stackoverflow.com/questions/279170/utf-8-all-the-way-through?rq=1

Saved by uncleflo on May 9th, 2018.

I'm setting up a new server, and want to support UTF-8 fully in my web application. I have tried in the past on existing servers and always seem to end up having to fall back to ISO-8859-1. Where exactly do I need to set the encoding/charsets? I'm aware that I need to configure Apache, MySQL and PHP to do this - is there some standard checklist I can follow, or perhaps troubleshoot where the mismatches occur? This is for a new Linux server, running MySQL 5, PHP 5 and Apache 2.

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Locking for Concurrency in MySQL

http://www.brainbell.com/tutors/php/php_mysql/When_and_how_to_lock_tables.html

Saved by uncleflo on May 9th, 2018.

The first and most important point is that the primary use of locking is to solve concurrency problems. If scripts are being implemented that write to the database but aren't multistep operations susceptible to the problems described in the last section, locks aren't needed. Simple scripts that insert one row, delete one row, or update one row, and that don't use results of a previous SELECT or data entered by the user as input, don't require a lock.

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Stackoverflow - offsetTop vs. jQuery.offset().top

https://stackoverflow.com/questions/6777506/offsettop-vs-jquery-offset-top

Saved by uncleflo on May 9th, 2018.

I have read that offsetLeft and offsetTop do not work properly in all browsers. jQuery.offset() is supposed to provide an abstraction for this to provide the correct value xbrowser. What I am trying to do is get the coordinates of where an element was clicked relative to the top-left of the element. Problem is that jQuery.offset().top is actually giving me a decimal value in FFX 3.6 (in IE and Chrome, the two values match). http://jsfiddle.net/htCPp/ exhibits the issue. If you click the bottom image, jQuery.offset().top returns 327.5, but offsetTop returns 328. I would like to think that offset() is returning the correct value and I should use it because it will work across browsers. However, people obviously cannot click decimals of pixels. Is the proper way to determine the true offset to Math.Round() the offset that jQuery is returning? Should I use offsetTop instead, or some other method entirely?

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Temporary tables in SQL query optimization

https://www.endpoint.com/blog/2015/02/25/temporary-tables-in-sql-query

Saved by uncleflo on April 18th, 2018.

SQL queries can get complex in a big hurry. If you are querying multiple tables, and in particular if your query involves operations like UNION and INTERSECT, then you can find yourself in a big, messy pile of SQL. Worse, that big pile will often run slowly, sometimes to the point where a web application times out! I won’t inflict a real-world example on you; that would be cruel. So let’s look at a “toy” problem, keeping in mind that this won’t illustrate any time-savings, just the technique involved.

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Breaking Habits Hackathon: you will only know if you try

https://www.ing-events.nl/hackathon2018/en/

Saved by uncleflo on March 21st, 2018.

On 21 and 22 March ING will host the Breaking Habits Hackathon to boost interaction and collaboration between countries, cultures and expertise. A landmark event which will bring together colleagues and students from the Netherlands and Belgium. Together they will realise new ideas, take creative problem-solving to the next level and pitch a plan to a jury of experts.

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Realtime Visibility into Global Cyber Attacks

http://www.norse-corp.com/

Saved by uncleflo on June 27th, 2017.

WE’RE AGGRESSIVE: We believe you have to be at least as aggressive and entrepreneurial as your digital adversaries in order to defeat them. Chasing the known threats is easy. It’s the unknown that’s hard. That means we can’t just react — we have to pre-empt. We have to smash the attack chain before it gets built. WE’RE LOOKING FOR TROUBLE: We believe in taking the hits so our customers don’t have to. That’s why we wander the worst neighborhoods of the Internet, looking for trouble, just asking to be attacked. That’s why we’ve built the biggest dedicated threat detection network in the world, and populated it with millions of honeypots, agents, sensors and crawlers. WE’RE NORSE: Norse is dedicated to delivering live, accurate and unique attack intelligence that helps our customers block attacks, uncover hidden breaches and track threats emerging around the globe. Norse offerings leverage a continuously updated torrent of telemetry from the world’s largest network of dedicated threat intelligence sensors. Norse is focused on dramatically improving the performance, catch-rate and return-on-investment for enterprise security infrastructures.

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Information Security Stackexchange

https://security.stackexchange.com/

Saved by uncleflo on June 27th, 2017.

Q&A for information security professionals. Ask questions and get answers on any and all information security related topics.

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How to avoid many-to-one problems in SQL

https://www.xaprb.com/blog/2006/03/11/many-to-one-problems-in-sql/

Saved by uncleflo on May 15th, 2017.

It’s been a while since I’ve posted an abstract, theoretical article on a fine point of SQL. Today I want to bring your attention to two ways in which an RDBMS can allow you to do something that has no well-defined result. These involve queries where several values are eligible, but only one is chosen – and chosen in an undefined manner. I’ll show you the two blunders, tell you when they might occur, and explain how to avoid them.

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A Silent Threat - PHP in EXIF

https://websec.io/2012/09/05/A-Silent-Threat-PHP-in-EXIF.html

Saved by uncleflo on February 24th, 2017.

Anyone who has done anything with file uploads knows that there's a lot to take into consideration when you're allowing your users to upload their own files up to the server. We've already covered some of the things you can do to help prevent some of the most common problems (bad MIME types, whitelisting file types, etc) but there's another one to consider that wasn't mentioned before. This "silent threat" comes in the form of PHP code embedded into the EXIF data on an image - jpg, gif, whatever. Since PHP only really has detection for things like MIME type, checking into the headers of uploaded images is difficult. Thankfully, there's a simple way to protect you and your application - don't use include (or the like) to load images into your site.

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How to convert to/from DOS format in VIM…

http://mattfahrner.com/2008/10/09/how-to-convert-tofrom-dos-format-in-vim/

Saved by uncleflo on January 27th, 2017.

It’s very easy, but also easy to forget how to convert to or from a DOS format file in Unix using “vim” (Vi iMproved), the Open Source “vi”. If the file is in DOS format and you want to convert to Unix, use the command:

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Reverse Osmosis Systems - Ampac USA

https://www.ampac1.com/

Saved by uncleflo on September 8th, 2016.

Welcome to Ampac USA advanced water purification systems, built to solve the most complex water purification, water provisioning, wastewater treatment and seawater desalination challenges in the most extreme environments across the planet. Ampac USA utilizes the state of the art in reverse osmosis, seawater desalination and drinking water technologies for municipal, industrial, pharmaceutical, mobile, onshore and offshore applications. Ampac USA manufactures advanced reverse osmosis water treatment systems to convert brackish water, well water, seawater and wastewater effluent into products that comply with end-user requirements. From isolated tropical islands to deserts, from the Arctic Circle to Antartica, from war zones to urban communities, from offshore rigs to blue water, Ampac USA Water Purification Solutions are proven across diverse environments.

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Music Stack Exchange

http://music.stackexchange.com/

Saved by uncleflo on September 1st, 2016.

Music: Practice & Theory Stack Exchange is a question and answer site for musicians, students, and enthusiasts. Join them; it only takes a minute

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Where are the Evolution data files stored?

http://askubuntu.com/questions/293696/where-are-the-evolution-data-files-stored

Saved by uncleflo on March 28th, 2016.

Given that I do use Evolution, and that I have the Ubuntu 12.10, and that I have neither a ~/.evolution nor a ~/.gconf/.evolution file, where are the evolution files please? In particular, every time I try to modify a certain contact evolution crashes, among other problems. Yes, I've reported the bug. So I thought I'd modify the database or xml file directly.

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Learn about Robot Inverse Kinematics

http://www.learnaboutrobots.com/inverseKinematics.htm

Saved by uncleflo on June 13th, 2015.

We've seen the forward kinematics problem. The inverse kinematics problem is much more interesting and its solution is more useful. At the position level, the problem is stated as, "Given the desired position of the robot's hand, what must be the angles at all of the robots joints?" Humans solve this problem all the time without even thinking about it. When you are eating your cereal in the morning you just reach out and grab your spoon. You don't think, "my shoulder needs to do this, my elbow needs to do that, etc." Below we will look at how most robots have to solve the problem. We will start with a very simple example.

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