A coupling (or a coupler) is a mechanism for connecting rolling stock in a train. The design of the coupler is standard, and is almost as important as the track gauge, since flexibility and convenience are maximised if all rolling stock can be coupled together.
Thermodynamics is a branch of natural science concerned with heat and its relation to energy and work. It defines macroscopic variables (such as temperature, internal energy, entropy, and pressure) that characterize materials and radiation, and explains how they are related and by what laws they change with time. Thermodynamics describes the average behavior of very large numbers of microscopic constituents, and its laws can be derived from statistical mechanics.
UUCP is an abbreviation of Unix-to-Unix Copy. The term generally refers to a suite of and protocol allowing remote execution of commands and transfer of file, email and netnews between .
A wiki ( ) is usually a web application which allows people to add, modify, or delete content in a collaboration with others. Text is usually written using a simplified markup language or a rich-text editor. While a wiki is a type of content management system, it differs from a blog or most other such systems in that the content is created without any defined owner or leader, and wikis have little implicit structure, allowing structure to emerge according to the needs of the users.
Electronic mail, most commonly called email or e-mail since around 1993, is a method of exchanging digital messages from an author to one or more recipients. Email operates across the Internet or other .
Cogeneration or combined heat and power ( CHP) is the use of a heat engine Cogeneration and Cogeneration Schematic, www.clarke-energy.com, retrieved 26.11.11 or power station to simultaneously generate electricity and useful heat. Trigeneration or combined cooling, heat and power ( CCHP) refers to the simultaneous generation of electricity and useful heating and cooling from the combustion of a fuel or a solar heat collector. A plant producing electricity, heat and cold is called a trigeneration or poly..
In computing, a denial-of-service ( DoS) attack is an attempt to make a machine or network resource unavailable to its intended users, such as to temporarily or indefinitely interrupt or suspend services of a host connected to the Internet. A distributed denial-of-service ( DDoS) is where the attack source is more than one–and often thousands of-unique IP addresses.
QR Code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional code) first designed for the automotive industry. More recently, the system has become popular outside the industry due to its fast readability and large storage capacity compared to standard UPC barcodes. The code consists of black modules (square dots) arranged in a square pattern on a white background. The information encoded can be made up of four standardized kinds ("modes") of data (numeri..
ASCII ( ), abbreviated from American Standard Code for Information Interchange, is a character-encoding scheme (the IANA prefers the name US-ASCII). ASCII codes represent text in computers, communications equipment, and other devices that use text. Most modern character-encoding schemes are based on ASCII, though they support many additional characters. ASCII was the most common character encoding on the World Wide Web until December 2007, when it was surpassed by UTF-8, which includes ASCII as a subset..
Wear the Flex Field Boots for Style and Comfort. The Ovation Ladies Flex Field Boots feature traditional styling but have been totally redesigned for ultimate comfort and ease of movement. The new Flex System pattern design affords the rider freedom of mov..
Wear the Flex Field Boots for Style and Comfort. The Ovation Ladies Flex Field Boots feature traditional styling but have been totally redesigned for ultimate comfort and ease of movement. The new Flex System pattern design affords the rider freedom of mov..
Wear the Flex Field Boots for Style and Comfort. The Ovation Ladies Flex Field Boots feature traditional styling but have been totally redesigned for ultimate comfort and ease of movement. The new Flex System pattern design affords the rider freedom of mov..
Wear the Flex Field Boots for Style and Comfort. The Ovation Ladies Flex Field Boots feature traditional styling but have been totally redesigned for ultimate comfort and ease of movement. The new Flex System pattern design affords the rider freedom of mov..
Wear the Flex Field Boots for Style and Comfort. The Ovation Ladies Flex Field Boots feature traditional styling but have been totally redesigned for ultimate comfort and ease of movement. The new Flex System pattern design affords the rider freedom of mov..
The Under Armour men's 'Tech' short sleeve t-shirt is made from UA's lightweight and soft-textured 'Tech' fabric for a more natural feel and unrivalled comfort. A Moisture Transport System actively wicks sweat away from the skin to leave you cool dry and ..
The Under Armour men's 'Tech' short sleeve t-shirt is made from UA's lightweight and soft-textured 'Tech' fabric for a more natural feel and unrivalled comfort. A Moisture Transport System actively wicks sweat away from the skin to leave you cool dry and ..
The Under Armour men's 'Tech' short sleeve t-shirt is made from UA's lightweight and soft-textured 'Tech' fabric for a more natural feel and unrivalled comfort. A Moisture Transport System actively wicks sweat away from the skin to leave you cool dry and ..
The Sonos Connect transforms your stereo, home theatre or powered speakers into a music into a music streaming Sonos system. Simply attach Connect to your amplified audio equipment and start enjoying your music. Wirelessly stream millions of different son..
iHip Active Sports Earphones with a built-in mic and remote to control your music or answer calls and talk handsfree on the phone. Designed to fit comfortably behind your ears the earphones are ideal for running or working out. Basswind technology provid..
The Under Armour Heatgear Sonic Long Compression Shorts are an ultra tight fit to increase muscle power and improve recovery time. Constructed from smooth fabric the top offers a high level of comfort and compression without restricting your movement. Un..
The Under Armour Heatgear Sonic Compression Shorts are an ultra tight fit to increase muscle power and improve recovery time. Constructed from smooth fabric the top offers a high level of comfort and compression without restricting your movement. Under A..
The Under Armour Men's Tech 1/4 Zip Top is made from lightweight UA Tech fabric for an incredibly soft feel for comfort. Designed to provide a full range of motion and incredible breathability the 1/4 zip top features a moisture transport system to wick s..
The Under Armour Men's Tech 1/4 Zip Top is made from lightweight UA Tech fabric for an incredibly soft feel for comfort. Designed to provide a full range of motion and incredible breathability the 1/4 zip top features a moisture transport system to wick s..
CLOSEOUTS . The classic pique-knit polo gets a high-tech update in the Pacific Trail Performance-Cooling polo shirt, made with technology that pulls heat away from your body -- ideal for hot days on the links and in the backyard. Available Colors: STRONG B..
This book aims to cover the ongoing research topics in computer system, reliability analysis, reliability applications and maintenance policies, so as to provide awareness for those who engage systems design, being students, technicians, or research engin..
This is an exciting time to produce an overview of the systematics and evolution of the fungi. Molecular and subcellular characters have given us our first view of the true phylogeny of the fungi. The systematic chapters present detailed illustrated treatm..
The chapters treat algebraic specification, temporal logic specification, default specifications and deontic logic specification. Applications include information systems, distributed systems, and real-time systems. One of the major themes in the book is t..
Jude Medical, Austin, TX, USACardiac resynchronization therapy (CRT) is an exciting new option for a growing number of heart failure patients, but CRT systems present special challenges to clinicians, even those accustomed to working with pacemakers. Now, ..
Forty percent of the world’s population gains a livelihood from agriculture and we all consume food. Yet control over this fundamental resource is concentrated in relatively few hands. The 2008 food price crisis illustrated both the volatility and vu..
One of its major
conclusions is that English word structure can be properly characterized solely in
terms of a context-free grammar. Selkirk points out that the Semitic languages, for
example, must be charact..
In seven chapters, Stan Duncan explains the rules and general practices of transnational corporations and global lending institutions such as the World Bank and the International Monetary Fund. He also addresses specific issues such as third-world debt, NA..
This i-Pilot Link delivers automatic boat control and the power to find, store and revisit your most productive fishing spots and tracks. You can also take command of it all from either the wireless remote or the Humminbird fishfinder. With this Link you c..
New design, new gameplay, new connected accessories Discover Parrot Mambo, from our line of Minidrones designed to learn piloting small easy and robust drones. Parrot Mambo is the social drone that makes you interact with your friends and your environment..
This 10 feet DVI I Single Link Monitor Cable features two DVI I male connectors, allowing you to connect your PC or Mac computer to a digital projector, HDTV or CRT display without losing signal quality.The DVI I monitor cable is expertly designed to ensur..
A safe painless and effective way of ridding the skin of mild to moderate acne the Omnilux Clear-U is a handheld device that is FDA cleared for the treatment of acne lesions. Operating a two light system; the blue light of the Omnilux clear-U’..
Convert your Hi-Speed USB 2.0 scanner to a shared network resource. The Hi-Speed USB scanner server provides fast Ethernet connectivity for your Hi-Speed USB 2.0 devices, instantly converting the connected device accessible anywhere on your network. The Hi..
Rodents are of the order Rodentia, characterised by a single pair of continuously growing incisors in each of the upper and lower jaws that must be kept short by gnawing.
A top is clothing that covers at least the chest, but which usually covers most of the upper human body between the neck and the .Encarta encarta The bottom of tops can be as short as mid-torso, or as long as mid-thigh. Men's tops are generally paired wi
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