(Askeri) JET HAVA TRAFİK DANIŞMA HİZMETİ: Radarlı veya radarsız jet hava trafik danışma sahası içinde uçan bazı sivil uçaklara verilen hizmet. Radarlı jet hava trafik danışma sahası içinde bu hizmetten faydalanan uçaklara radar uçuş takibi, radar trafik bilgisi ve izlenen trafik çevresindeki vektörler sağlanır. Radarsız jet hava trafik danışma sahası içinde bu hizmetlerden yararlanan uçaklara ise bu bölge içinde uçtuğu kontrol merkezi tarafından bilinen uçaklardan ayrılabilmeleri için standart aletli uçuş bilgisi sağlanır
(Askeri) JET MOTORU (HV.): Yakıtı yakmak için, yakıcı madde (oxidizer) olarak dışarıdaki havayı emen ve motor içinde yanmanın tevlit ettiği gazları, itici güç meydana getirmek üzere, sıcak halde getoru arasındaki fark birincisinde yanışın dışarıdan alınan havaya bağlı olmasıdır. Roket motoru yakıcı maddeyi beraberinde taşır; dolayısıyla dış uzayda faaliyete muktedirdir
(Askeri) TEPKİLİ İTME: İtici unsurun (motorun) oksijeni havadan alarak meydana getirdiği tepkimeli itme. Bu, kendi oksijen kaynağını içinde taşıyan itici unsurlardaki roketli itmeden farklıdır. Bir uçağın hareketiyle ilgili olarak kullanıldığında kuyruk borusu ve gaz sıkıştırma boğazından sıcak gaz çıkartarak uçağı iten benzin veya diğer bir yakıtla çalışan türbünlü ve tepkili unsuru (motor) ifade eder. Bak. "rocket propulsion" ve "propulsion"
(Askeri) TEPKİ İLE YÖNELTME (HV.): Hem ara motorlarla tahrikli uçuşta hem çekiş sona erdikten sonraki süre içinde arzu edilen mahrekte seyrini temin için bir uzay aracı, balistik füze ve sondaj roketinde, sabit veya müteharrik fışkırtma borularının kullanılması. Jetlere soğuk basınçlı gaz veya bir gaz jeneratöründe sevk haklarının yakılmasıyla elde edilen sıcak gaz verilebilir
The name physicists give to a cluster of particles emerging from a collision or decay event all traveling in roughly the same direction and carrying a significant fraction of the energy in the event The particles in the jet are chiefly hadrons More Information: Hadrons, Event Display Picture: Typical Hadronic Event, Event Display Picture: Multi-Jet Hadronic Events
1 A strong well-defined stream of fluid either issuing from an orifice or moving in a contracted duct, such as the jet of combustion gases issuing from a reaction engine, or the jet in the test section of a wind tunnel See free jet
an airplane powered by one or more jet engines the occurrence of a sudden discharge (as of liquid) a hard black form of lignite that takes a brilliant polish and is used in jewellery or ornamentation issue in a jet; come out in a jet; stream or spring forth; "Water jetted forth"; "flames were jetting out of the building"
Joint European Torus JET is the world's largest magnetic confinement fusion experiment which aims at confirming the scientific theory of fusion and the scientific feasibility of nuclear fusion for power generation
Jet is a hard black stone that is used in jewellery. jet engine jet lag jet stream
Hard, black fossilised wood, Jet from Yorkshire was widely used in making jewellery, buttons, beads and pulley-rings
(1) describes the blackness or intensity of the masstone of black or near-black inks or colored surfaces; (2) a pressurized stream of air used as a drying mechanism
Depending on their energy, the quarks and gluons emerging from a collision will materialize into 5-30 particles (mostly mesons and baryons) At high momentum, these particles will appear in clusters called ``jets,'' that is, in groups of particles moving in roughly the same direction, centered about the original quark or gluon
a form of fossilized coal that became popular for mourning jewelry after Queen Victoria's husband, Albert died in 1861 Produced mainly in Whitby, England, it is a very lightweight substance Black glass was often used to imitate jet which became a fashion item, not just for mourning
A shooting forth; a spouting; a spurt; a sudden rush or gush, as of water from a pipe, or of flame from an orifice; also, that which issues in a jet
A small motorized water craft with a flattish hull and an upright centre, which a rider sits astride
2006: Jet ski is actually Kawasaki's name for their PWC (personal water craft) models, but like hoovers and speedos has become genericised. — Tracks magazine, Gimme Fuel: High Octane Advise for Buying a Ski, October 2006, page 154.
A jet engine is an engine in which hot air and gases are forced out at the back. Jet engines are used for most modern aircraft. an engine that pushes out a stream of hot air and gases behind it, used in aircraft. Any of a class of internal-combustion engines that propel aircraft by means of the rearward discharge of a jet of fluid, usually hot exhaust gases generated by burning fuel with air drawn in from the atmosphere. Jets rely on the third of Newton's laws of motion (action and reaction are equal and opposite). The first jet-powered airplane was introduced in 1939 in Germany. The jet engine, consisting of a gas-turbine system, significantly simplified propulsion and enabled substantial increases in aircraft speed, size, and operating altitudes. Modern types of jet engines include turbojets, turbofans, turboprops, turboshafts, and ramjets. See airplane. See also drag; gasoline engine; lift
jet lag in BRIT, also use jetlag If you are suffering from jet lag, you feel tired and slightly confused after a long journey by aeroplane, especially after travelling between places that have a time difference of several hours. the tired and confused feeling that you can get after flying a very long distance, especially because of the difference in time between the place you left and the place you arrived at. Period of adjustment of biological rhythm after moving from one time zone to another, experienced as fatigue and lowered efficiency. It reflects a delay in the synchronization of changes in the level of blood cortisol, the major steroid produced by the adrenal cortex (see adrenal gland), with the local day-night cycle. Duration and severity depend on how much distance is covered in how little time. Travel by jet, after which the phenomenon may persist for some days, first made it noticeable, accounting for the name
A high-speed wind near the troposphere, generally moving from a westerly direction at speeds in the northern hemisphere and in an easterly direction in the southern hemisphere, often exceeding 400 km per hour (250 miles per hour)
High speed air currents that flow eastward in the upper troposhere and lower stratosphere Jet streams can generate strong vertical shearing action that is hazardous to aircraft (Sort of opposite to jet streams are the trade winds Trade winds blow westward toward the equator from the subtropical high-pressure belts at latitudes near 30 °N and 30 °S )
Relatively strong winds that are concentrated in a narrow band in the atmosphere Jet Streams are usually thousands of kilometers long, hundreds of kilometers wide but only a few kilometers thick They are usually found between 6 and 10 miles above the surface
A high-speed, meandering wind current, generally moving from a westerly direction at speeds often exceeding 400 kilometers (250 miles) per hour at altitudes of 15 to 25 kilometers (10 to 15 miles) In the Western United States, the jet stream's north-south latitudinal position largely determines the application and intensity of precipitation during the winter months when most rain and snowfall occur
The jet stream is a very strong wind that blows high in the earth's atmosphere and has an important influence on the weather. a current of very strong winds high above the Earth's surface. Any of several long, narrow, high-speed air currents that flow eastward in a generally horizontal zone in the stratosphere or upper troposphere. Jet streams are characterized by wind motions that generate strong vertical shearing action, considered largely responsible for the clear-air turbulence experienced by aircraft. They also have an effect on weather patterns. Jet streams circle the Earth in meandering paths, shifting position as well as speed with the seasons. In the winter they are nearer the Equator and their speeds are higher than in the summer. There are often two, sometimes three, jet-stream systems in each hemisphere
Relatively strong winds concentrated in a narrow stream in the atmosphere, normally referring to horizontal, high-altitude winds The position and orientation of jet streams vary from day to day General weather patterns (hot/cold, wet/dry) are related closely to the position, strength and orientation of the jet stream (or jet streams) A jet stream at low levels is known as a low-level jet
a fast moving river of air [traveling at 190 mph (300 kmph)] in the upper part of the lower atmosphere which often marks the boundary between different air masses There are two jet streams: the polar jet stream and the weaker sub-tropical jet stream
high speed air flow in the atmosphere forming air rivers several hundred miles across that generally move west to east and mark the boundary that separates two global air masses with significant differences in temperature
A narrow band of westerly high velocity wind, in excess of 95 mph (150 kph), that encircles the earth in the upper troposphere It can reduce the flying time across the Atlantic Ocean from west to east and retard flights in the opposite direction
A strong band of wind or winds in the upper troposphere or in the stratosphere, moving in a general direction from west to east and often reaching velocities of hundreds of miles an hour See jetstream, note
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