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Delta effect
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
- Acoustic energy re-radiated by a discontinuity.
- In ultrasonic testing, reradiation or diffraction of energy from a discontinuity.15 the reradiated energy may include waves of both the incident mode and converted modes (longitudinal and transverse). delta (t): in acoustic emission testing, time interval between the detected arrival of an acoustic emission wave at two sensors. also called time differential or difference in time of arrival.
- Reradiation or diffraction of energy from a discontinuity.22 the reradiated energy may include waves of both the incident mode and converted modes (longitudinal and transverse).7 delta t (??t): duration measured between two points in time. also called time differential.
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Delta, английский
- A symbol used to indicate deviation or difference.
- Коэффициент “дельта” . показатель чувствительности рассчитываемой стоимости опциона к незначительным колебаниям цены базового актива. часто называется “хеджевым коэффициентом” (hedge ratio). изменяется в интервале от 0 до 1 для опционов колл и в интервале
- The fourth letter of the greek alphabet
- Дельта (тип якоря)
- A name given by the greeks to the alluvial tract inclosed between the bifurcating branches of the nile and the sea-line. it is well known that rivers which deposit great quantities of matter, do also very often separate into two or more branches, previous to their discharge into the sea; thus forming triangular spaces, aptly called deltas from their resemblance to the greek letter {d}.
- [1] alluvial deposit at the mouth of a river or tidal inlet. [2] nato phonetic notation for letter “d” which, when used as a single-letter signal, signifies “stand clear—i am maneuvering with difficulty” (see table 8). [3] a triangular-shaped aerofoil. 95 delta demi-culverin: a 16th century cannon firing a 9-pound ball.
- Допустимая ошибка
- A body of alluvium, nearly flat and fan-shaped, deposited at or near the mouth of a river or stream where it enters a body of relatively quiet water, usually a sea or lake. hp
- The ratio of the change in price of an option to the change in price of the underlying asset. also called the hedge ratio. applies to derivative products. for a call option on a stock, a delta of 0.50 means that for every $1.00 that the stock goes up, the option price rises by $0.50. as options near expiration, in-the-money call option contracts approach a delta of 1.0, while in-the-money put options approach a delta of -1. see: hedge ratio, neutral hedge. call deltas range from 0.00 to +1.00; put deltas range from 0.00 to -1.00. if the call delta is 0.69, the put delta is -0.31 (call delta minus 1 equals put delta; 0.69 -1 =-0.31).
Delta, английский
Delta, итальянский
Nei contratti di opzione, il fattore numerico che permette di quantificare la variazione di prezzo dell`opzione provocata da una variazione di prezzo unitaria dello strumento sottostante. per esempio, se un`opzione ha un delta di 0.4 e il prezzo dello str
Delta air charter, английский
Нигерийская авиатранспортная компания «дельта эр чартер»
Delta air lines * *, английский
Delta air transport, английский
Бельгийская авиатранспортная компания «дельта эр транспорт»
Delta airlines, английский
Авиатранспортная компания «дельта эрлайнз»
Delta clear to send, английский
Изменение "освободить для передачи"
Delta coefficient, английский
Коэффициент дельта
Delta connection, английский
- A connection arrangement of a three-phase electrical transformer; the three windings are connected in series forming a
- Соединение по схеме "треугольник"
Delta cross-hedge, английский
A futures hedge that has both maturity and currency mismatches with an underlying exposure.
Delta data carrier detected, английский
Изменение "обнаружение сигнала несущей"
Delta data set ready, английский
Изменение "установить готовность к передаче"
Delta equivalent spin stabilized solid, английский
Стабилизированный вращением твердотопливный двигатель ракеты-носителя «дельта»
Delta error(e), английский
In color tolerencing, the symbol (e is used to express delta error, the total color difference computed using a color difference equation.
Delta ferrite, английский
Solid solution with body centered cubic structure and iron as solvent. also called delta iron.
Delta file, английский
A file which contains references to those rows in the data file that have been deleted.
Delta fluid volume, английский
Изменение объема напр., гидроаккумулятора при разрядке
Delta function, английский
Дельта-функция; функция дирака
Delta hedge, английский
A dynamic hedging strategy using options that calls for constant adjustment of the number of options used, as a function of the delta of the option.
Discontinuity, английский
- Разрывность (течения, кривой)
- Разрыв (непрерывности); нарушение сплошности; перегиб кривой; разрезность {конструкции) о ~
- [stratigraphy] any interruption in sedimentation, whatever its cause or length, usually a manifestation of nondeposition and accompanying erosion; an unconformity. gg part 629 - glossary 629-24 (430-vi-nssh, 2008)
- An interruption in the normal physical structure or configuration of a part such as cracks, laps, seams, inclusions, porosity. a discontinuity may or may not affect the usefulness of a part. see defect.
- Interruption in the physical structure or configuration of a test object. after nondestructive testing, a discontinuity indication may be interpreted to be a defect. compare defect; indication. discontinuity, artificial: reference discontinuity such as hole, indentation, crack, groove, or notch introduced into a reference standard to provide accurately reproducible indications for determining test sensitivity levels.
- Interruption in the physical structure or configuration of a test object. after nondestructive testing, a discontinuity indication can be interpreted to be a defect.4,7 compare defect; indication. discontinuity, artificial: reference discontinuity such as hole, indentation, crack, groove or notch introduced into a reference standard to provide accurately reproducible indications for determining test sensitivity levels.4 discontinuity, inherent: material anomaly originating from solidification of cast metal. pipe and nonmetallic inclusions are the most common inherent discontinuity and can lead to other types of discontinuities in fabrication.2,5 discontinuity, primary processing: discontinuity produced from the hot or cold working of an ingot into forgings, rods, bars and other shapes.2,5 discontinuity, secondary processing: discontinuity produced during machining, grinding, heat treating, plating or other finishing operations.2,5 discontinuity, service induced: discontinuity caused by the intended use of the part.
- Intentional or unintentional interruption in the physical structure or configuration of a part.1,4 after nondestructive testing, unintentional discontinuities interpreted as detrimental in the host object may be called flaws or defects. compare defect, dislocation and indication.1 discontinuity, artificial: reference discontinuities such as holes, indentations, cracks, grooves or notches that are introduced into a reference standard to provide accurately reproducible indications for determining sensitivity levels.1 discontinuity, primary processing: in metals processing, a material anomaly produced from the hot or cold working of an ingot into forgings, rod and bar.1 discontinuity, service induced: material anomaly caused by the intended use of the part.1 display resolution, thermal: precision with which an instrument displays its assigned measurement parameter (temperature), usually expressed in degrees, tenths of degrees, hundredths of degrees and so forth.3
- Interruption in the physical structure or configuration of a test object. after nondestructive testing, a discontinuity indication may be interpreted as a defect. compare anomaly; defect; indication. drift (electronic): change in output reading of an instrument, usually due to temperature change.
- Interruption in the physical structure or configuration of a test object. after nondestructive testing, a discontinuity indication may be interpreted as a defect. compare anomaly; defect; indication. discontinuity, artificial: reference anomaly such as hole, indentation, crack, groove, or notch introduced into a reference standard to provide accurately reproducible indications for determining test sensitivity levels. see also known discontinuity standard. discontinuity, inherent: material anomaly originating from solidification of metal. pipe, banding, and nonmetallic inclusions are the most common inherent discontinuities and can lead to other types of discontinuities in fabrication. discontinuity, primary processing: discontinuity produced from the hot or cold working of an ingot into forgings, rods, bars, and other shapes. glossary d-e 497 discontinuity, secondary processing: discontinuity produced during machining, grinding, heat treating, plating, or other finishing operations. discontinuity, service induced: discontinuity caused by the intended use of the part. see also brittle crack propagation; creep; ductile crack propagation; fatigue crack propagation.
- Interruption in the physical structure or configuration of a test object. after nondestructive testing, a discontinuity indication can be interpreted to be a flaw or a defect.10 compare defect; indication.5,6 discontinuity, artificial: reference discontinuity such as hole, indentation, crack, groove, or notch introduced into a reference standard to provide accurately reproducible indications for determining sensitivity levels.4
- Interruption in the physical structure or configuration of a test object. after nondestructive testing, a discontinuity indication can be interpreted to be a flaw or a defect.10 compare defect; indication.
Ultrasonic, английский
- Manufacturers` association ассоциация фирм — изготовителей изделий с использованием ультразвука
- Of or relating to acoustic vibration frequencies greater than about 20 khz.
- Pertaining to acoustic vibration frequencies greater than about 20 khz.
- Of or relating to acoustic vibration frequencies greater than about 20 khz.7,22
Diffraction, английский
- The "spreading" of waves into the lee of obstacles such as breakwaters by the transfer of wave energy along wave crests. diffracted waves are lower in height than incident waves.
- Дифракция
- Deviation of the direction of propagation of a radiation, determined by the wave nature of radiation, and occurring when the radiation passes the edge of an obstacle.
- A wave property which creates deviation from a straight line when the beam passes near an edge of an opaque object. deviation of part of a beam, determined by the wave nature of radiation and occurring when the radiation passes the edge of an opaque obstacle.
- Light curves or travels around small circular objects.
- The changing of direction (bending or spreading) that occurs when a light wave interacts with an opening or barrier
- (1) in acoustics, the reflection of a wave front when passing the edge of an ultrasonically opaque object. (2) in radiation technologies, a special case of scatter, where coherently scattered photons undergo interference or reinforcement, resulting in patterns indicative of the scattering medium. see also xray diffraction.
- (1) в акустике - отражение волнового фронта при прохождении края непрозрачного для ультразвука объекта. (2) в радиационных технологиях - особый случай рассеяния, когда когерентно рассеянные фотоны подвергаются интерференции или усилению, что приводит к образованию структур, указывающих на рассеивающую среду. см. также дифракция рентгеновских лучей.
- (1) in radiographic testing, special case of scatter, where coherently scattered (full intensity is retained) photons undergo interference or reinforcement, resulting in patterns indicative of the scattering medium. see also x-ray diffraction. (2) in ultrasonic testing, deflection of a wavefront when passing the edge of an ultrasonically opaque object.15
- Deflection of a wavefront when passing the edge of an ultrasonically opaque object.7,22
Longitudinal, английский
- Generally parallel to the direction of the wood fibres.
- Продольный
- Generally, parallel to the direction of the wood fibers.
- Продольный, относящийся к долготе, стрингер
- [1] extending in the lengthwise direction, as distinguished from transverse. [2] said of any fore-and-aft structural member, such as a frame or bulkhead.
- Running lengthwise.
- Along the length of a structure.
- Direction parallel to the long axis of an object and perpendicular to its radius — for example, down the length of a cylinder. compare circumferential; radial; transverse. lot tolerance percent defective (ltpd): the poorest quality, in percent defective, individual lot that is acceptable in a sampling plan. ltpd is the percent defective that will be accepted by the sampling plan at most 10 percent of the time. with such a plan, the producer agrees to supply just enough nonconforming product such the consumer will accept the lot using the agreed to sampling plan and acceptable quality level. compare acceptable quality level. lumen (lm): si photometric unit of luminous flux, weighted according to the photopic vision response. one lumen equals the light emitted by one candela (cd) point source into one steradian (sr) solid angle (1 lm = 1 cd/sr).
Transverse, английский
- Across. a transverse section is a section across the length of a building or room.
- Поперечный
- Directions in wood at right angles to the wood fibers
- Perpendicular to the keel (athwartship).
- Across the vessel; athwartships. trim - fore and aft balance of a boat.
- Literally, “across,” usually signifying a direction or plane perpendicular to the direction of working.
Differential, английский
- Дифференциал; разность; перепад; дифференциальный
- Разность; перепад (давлений)
- N дифференциал semantic ~ псхлнгв. семантический диффе- ренциал5 differentiated a дифференцированный; over-~ сверхдифференцированный 1 один из возможных способов синтаксической реализации семантиче- ских актантов предиката. 2 словарь языка писателя, философа или общественного деятеля; до 1990-х гг. в отеч. лит. бытовал термин «писательский словарь». 3 словарь с указанием норм произношения. 4 англ. термином reverse dictionary (rd) и русским обратный словарь называются разные вещи. в rd реализуется принцип «от значения к слову», поэтому rd скорее являются словарями ассоциаций, нежели обратными словарями, где слова расположены в обратном (инверси- онном) порядке. 5 метод качественно-количественного индексирования значения слова с помощью двухполюсных шкал, на каждой из которых имеется града- ция с парой антонимических прилагательных.
- Разница в оплате труда квалифицированных и неквалифицированных рабочих одной отрасли или рабочих разных отраслей промышленности
- System of gears capable of dividing the input torque of one shaft between two output shafts where rotation at different speeds is ukely to occur, as in cornering. used as the final drive of vehicles with two or more driven wheels. see also crown wheel
- A system of gears that allows the outside driven wheel to rotate faster than the inside driven wheel when turning a corner. conventional “open” differentials direct engine power to the wheel with the least traction, which can be a problem on slippery surfaces. to combat this, some vehicles are equipped with “limited-slip” differentials that ensure some power is always delivered to both driven wheels.
- Difference in value between two comparable items
- Difference in value between two comparable items change in value of one item compared to another (for example, a “cost-of-living differential” is the difference between the price of goods bought in the home country compared to the price of similar goods in the host country)
Difference, английский
- Disagreement, inequity, contrast, dissimilarity, incompatibility
- Разница; разность
- An important army term, meaning firstly the sum to be paid by officers when exchanging from the half to full pay; and, secondly, the price or difference in value of the several commissions.
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Fretting (fretting corrosion), английский
Action that results in surface damage, especially in a corrosive environment, when there is relative motion between solid surfaces in contact under pressure.
Broad-beam absorption (rt), английский
Absorption measured under conditions in which scattered radiation is not excluded from the measuring apparatus.
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