|
Tracked Articulated Vehicle
A tracked articulated vehicle or articulated tracked vehicle (abbreviated as ATV. but not to be confused with all-terrain vehicle), is a variation of a continuous track vehicle that consists of two cars, each with their own track, most commonly with an actuated linkage in between. This configuration allows an articulated tracked vehicle to turn by articulating the swivel joint in between the two vehicles (also known as articulated steering), as opposed to using differential steering to move one track faster than the other. Tracked articulated vehicles differ from most other articulated vehicles in that in a tracked articulated vehicle both wagons are powered and that removing the coupling in between the units would render them inoperable. Operating principle Just like conventional dual-tracked vehicles, the purpose of an articulated tracked vehicle is to better navigate off-road terrain, in particular snow, mud and other weak soil, by using long articulated tracks instead of wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mortar Carrier
A mortar carrier, or self-propelled mortar, is a self-propelled artillery piece in which a mortar is the primary weapon. Simpler vehicles carry a standard infantry mortar while in more complex vehicles the mortar is fully integrated into the vehicle and cannot be dismounted from the vehicle. Mortar carriers cannot be fired while on the move and some must be dismounted to fire. Evolution The mortar carrier has its genesis in the general mechanisation and motorisation of infantry in the years leading up to World War II. To move an infantry mortar and its crew various methods were developed, for example mounting the mortar on a wheeled carriage for towing behind a light vehicle, attaching the mortar and its permanently fixed baseplate to the rear of a vehicle — the entire assembly hinging from the horizontal for travel and to the vertical to fire, simply transporting the disassembled mortar (tube, baseplate and bipod) its crew and mortar bombs by truck or half-track. Provis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tractor Expedición Polar Argentina 1965, Flag Day 2006, Rosario, Argentina
A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a trailer or machinery such as that used in agriculture, mining or construction. Most commonly, the term is used to describe a farm vehicle that provides the power and traction to mechanize agricultural tasks, especially (and originally) tillage, and now many more. Agricultural implements may be towed behind or mounted on the tractor, and the tractor may also provide a source of power if the implement is mechanised. Etymology The word ''tractor'' was taken from Latin, being the agent noun of ''trahere'' "to pull". The first recorded use of the word meaning "an engine or vehicle for pulling wagons or plows" occurred in 1896, from the earlier term " traction motor" (1859). National variations In the UK, Ireland, Australia, India, Spain, Argentina, Slovenia, Serbia, Croatia, the Netherlands, and Germany, the word "tractor" u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil Erosion
Soil erosion is the denudation or wearing away of the Topsoil, upper layer of soil. It is a form of soil degradation. This natural process is caused by the dynamic activity of erosive agents, that is, water, ice (glaciers), snow, Atmosphere of Earth, air (wind), plants, and animals (including humans). In accordance with these agents, erosion is sometimes divided into water erosion, glacial erosion, snow erosion, Aeolian erosion, wind (aeolian) erosion, Zoogenic erosion, zoogenic erosion and anthropogenic erosion such as tillage erosion. Soil erosion may be a slow process that continues relatively unnoticed, or it may occur at an alarming rate causing a serious loss of topsoil. The loss of soil from Agricultural land, farmland may be reflected in reduced crop production potential, lower surface water quality and damaged drainage networks. Soil erosion could also cause sinkholes. Human activities have increased by 10–50 times the rate at which erosion is occurring world-wide. Exc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining
Mining is the Resource extraction, extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agriculture, agricultural processes, or feasibly created Chemical synthesis, artificially in a laboratory or factory. Ores recovered by mining include Metal#Extraction, metals, coal, oil shale, gemstones, limestone, chalk mining, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even fossil water, water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and final mine reclamation, reclamation or restoration of the land after the mine is closed. Mining ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroleum Industry
The petroleum industry, also known as the oil industry, includes the global processes of hydrocarbon exploration, exploration, extraction of petroleum, extraction, oil refinery, refining, Petroleum transport, transportation (often by oil tankers and pipeline transport, pipelines), and Downstream (petroleum industry)#Marketing, marketing of list of crude oil products, petroleum products. The largest volume products of the industry are fuel oil and gasoline (petrol). Petroleum is also the raw material for many petrochemical, chemical products, including pharmaceutical drug, pharmaceuticals, solvents, fertilizers, pesticides, synthetic Aroma compound, fragrances, and plastics. The industry is usually divided into three major components: upstream (petroleum industry), upstream, midstream, and downstream (petroleum industry), downstream. Upstream regards exploration and extraction of Petroleum, crude oil, midstream encompasses transportation and Oil terminal, storage of crude, and dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logging
Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidder, skidding, on-site processing, and loading of trees or trunk (botany), logs onto logging truck, trucksSociety of American Foresters, 1998. Dictionary of Forestry. or flatcar#Skeleton car, skeleton cars. In forestry, the term logging is sometimes used narrowly to describe the logistics of moving wood from the stump to somewhere outside the forest, usually a sawmill or a lumber yard. In common usage, however, the term may cover a range of forestry or silviculture activities. Logging is the beginning of a supply chain that provides raw material for many products societies worldwide use for housing, construction, energy, and consumer paper products. Logging systems are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Warfare Training Center
The Mountain Warfare Training Center (MWTC) is a United States Marine Corps installation located in Pickel Meadows in Mono County, California, at above sea level in the Humboldt-Toiyabe National Forest, Toiyabe National Forest, northwest of Bridgeport, California. The training center exists to train units in complex compartmented terrain. Mission The Marine Corps' Mountain Warfare Training Center, as a major subordinate element of Marine Air Ground Task Force Training Command, and with support from Marine Corps Installations West, conducts unit and individual training courses to prepare USMC, Joint, and Allied Forces for operations in mountainous, high altitude, and cold weather environments in support of the Regional Combatant Commanders. Additionally, MWTC provides support to Marine Corps Combat Development Command (MCCDC); Marine Corps Training and Education Command, Training and Education Command; Marine Corps Systems Command; and other USMC and United States Department of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Implementation Force
The Implementation Force (IFOR) was a NATO-led multinational peace enforcement force in Bosnia and Herzegovina under a one-year mandate from 20 December 1995 to 20 December 1996 under the codename ''Operation Joint Endeavour''. Background In 1995, NATO was tasked by the United Nations (UN) to carry out the provision of the Dayton Peace Accords ending the Bosnian War. The Dayton Peace Accords were started on 22 November 1995 by the presidents of Bosnia, Croatia, and Serbia, on behalf of Serbia and the Bosnian Serb Republic. The actual signing happened in Paris on 14 December 1995. The peace accords contained a General Framework Agreement and eleven supporting annexes with maps. The accords had three major goals: ending of hostilities, authorization of military and civilian program going into effect, and the establishment of a central Bosnian government while excluding individuals who are serving sentences or under indictment by the International War Crimes Tribunals from taki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Marine Corps
The United States Marine Corps (USMC), also referred to as the United States Marines or simply the Marines, is the maritime land force service branch of the United States Department of Defense. It is responsible for conducting expeditionary and amphibious operations through combined arms, implementing its own infantry, artillery, aerial, and special operations forces. The U.S. Marine Corps is one of the six armed forces of the United States and one of the eight uniformed services of the United States. The Marine Corps has been part of the United States Department of the Navy since 30 June 1834 with its sister service, the United States Navy. The USMC operates installations on land and aboard sea-going amphibious warfare ships around the world. Additionally, several of the Marines' tactical aviation squadrons, primarily Marine Fighter Attack squadrons, are also embedded in Navy carrier air wings and operate from the aircraft carriers. The history of the Marine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
War In Afghanistan (2001–present)
War in Afghanistan, Afghan war, or Afghan civil war may refer to: *Conquest of Afghanistan by Alexander the Great (330 BC – 327 BC), the conquest of Afghanistan by the Macedonian Empire * Muslim conquests of Afghanistan, a series of campaigns in the 7th, 8th, 9th, and 10th centuries * Mongol campaigns in Central Asia (1216–1222), the conquest of Afghanistan by the Mongol Empire * Mughal conquests in Afghanistan (1526), the conquest by the Mughal Empire * Afghan-Sikh Wars (1748–1837), intermittent wars between the Afghans and the Punjabis. * Afghan Civil War (1863–1869), a civil war between Sher Ali Khan and Mohammad Afzal Khan's faction after the death of Dost Mohammad Khan * Anglo−Afghan Wars, wars conducted by British India in Afghanistan ** First Anglo−Afghan War (1839–1842) ** Second Anglo−Afghan War (1878–1880) ** Third Anglo−Afghan War (1919) * Panjdeh incident (1885), an incursion into Afghanistan by the Russian Empire during the era of the "Great Game" * A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marines
Marines (or naval infantry) are military personnel generally trained to operate on both land and sea, with a particular focus on amphibious warfare. Historically, the main tasks undertaken by marines have included Raid (military), raiding ashore (often in support of naval objectives) and the Boarding (attack), boarding of vessels during naval warfare, ship-to-ship combat or capture of Prize (law), prize ships. Marines also assisted in maintaining security, discipline, and order aboard ships (reflecting the historically Impressment, pressed-nature of the rest of the ship's company and the risk of mutiny). While maintaining many of their historical roles, in modern times, marines also engage in duties including Rapid reaction force, rapid-response operations, humanitarian aid, disaster relief, special forces, special operations roles, and counter-terrorism, counter-terrorism operations. In most nations, marines are an integral part of that state's navy, such as the United Kingdom's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
