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Electron microscope
| Глоссарий по экологии и загрязнению воздуха |
- Электронный микроскоп. электронное •оптическое устройство, позволяющее получить увеличенное во много раз изображение объекта. изображение отдельных деталей может быть получено посредством избирательного пропускания, отражения или испускания электронов объектом (мэк, 3). фотография, сделанная с помощью электронного микроскопа, называется электронной микрофотографией. при изучении загрязнения атмосферного воздуха электронный микроскоп используют для исследования при очень высоких увеличениях отдельных частиц (например, волокон асбеста), отобранных из воздуха.
- A type of microscope that uses short-wavelength electron beams rather than light to increase magnification and resolution
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Электронный микроскоп, русский
- , прибор, в котором для получения увеличенного изображения используется электронный пучок. разрешающая способность электронного микроскопа в сотни раз превышает разрешающую способность оптического микроскопа.
- Электроннографический прибор, позволяющий при помощи устройств электронной оптики получать увеличенные изображения помещаемых в него
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Electron, английский
- The electron is a low mass particle ( 1/1836 that of a proton ) with a unit negative electric charge. in simple terms the electrons are said to orbit around the nucleus of atoms . positively charged electrons can also exist, these being known as positrons
- Negatively charged particle of an atom.
- An elementary particle of an atom with a negative electrical charge and a mass of 1/1837 of a proton; electrons surround the positively charged nucleus of an atom and determine the chemical properties of an atom. the movement of electrons in an electrical conductor constitutes an electric current.
- An elementary particle of an atom with a negative electrical charge and a mass of
- One of the fundamental constituents of atoms. the electron is a very small negatively charged particle with a rest mass of approximately 1/1836 that of the hydrogen atom, or 9.107 x 10-28 gm. it has an electric charge of 4.802 x 10-10 statcoulomb (the electrostatic unit of charge). electrons appear to be uniform in mass and charge.
Electron affinity, английский
The amount of energy absorbed or given off when an atom accepts an electron.
Electron bands, английский
Electron beam, английский
A concentrated flow of electrons in a nominated direction.
Electron beam brazing, английский
Electron beam convergence, английский
Electron beam current, английский
Electron beam cutting, английский
Electron beam divergence, английский
Electron beam heat treating, английский
Electron beam machining, английский
Electron beam melting, английский
Electron beam power, английский
Electron beam recorder, английский
Electron beam recording, английский
Запись электронным лучом
Electron beam weld rotor, английский
Electron beam welding, английский
Сварка электронным лучом
Electron beam welding , английский
Electron beam , английский
Electron capture, английский
Electron capture (rt), английский
A mode of radioactive decay in which a bound electron is captured by the nucleus of the same atom, producing a vacancy in an inner emission of characteristic x-rays or auger electrons.
Электронный, русский
Электронное, русский
Устройство, русский
Устройство, (у)строение, построение, строй, склад, складка, уклад, структура, механизм, организм; изготовление, приготовление, выполнение, исполнение, осуществление, организация. , конструкция, образование, строение
Изображение, русский
- Изображение, вид, лик, икона, образ, картина, портрет, карточка, снимок, слепок, фигура, изваяние, кумир, статуя, бюст, силуэт; копия, подражание; описание, представление, проявление. ср. вид и рисунок. , картина, отражение, рисунок
- Картина, состоящая из точек пересечения лучей, выходящих из оптической системы, с некоторой поверхностью в пространстве изображений.
Посредством, русский
Посредством , через
Пропускания, русский
Испускания, русский
Электронов, русский
Фотография, русский
- Фотосерпас, югoрпас, югoра серпас
- (от фото ... и ...графия), теория и методы получения видимого изображения объектов на светочувствительных фотографических материалах (галогеносеребряных и бессеребряных); различают фотографию черно-белую и цветную, художественную и научно-техническую (аэрофотографию, микрофотографию, рентгеновскую, инфракрасную и др.). основоположники фотографии - изобретатели л. ж. м. дагер (1839) и ж. н. ньепс (франция), у. г. ф. толбот (1840-41, великобритания). цветные фотоизображения впервые получил л. дюко дю орон (1868-69, франция).
- Снимок, изображение предмета на светочувствительных материалах. в публикациях сми могут быть использованы в качестве иллюстраций или играть самостоятельную роль в связи с выбором жанровой формы фотопортрета, фоторепортажа, фотозарисовки, фотоочерка.
- Снимок, изображение предмета на светочувствительных материалах. в публикациях сми могут быть использованы в качестве иллюстраций или играть самостоятельную роль в связи с выбором жанровой формы фотопортрета, фоторепортажа, фотозарисовки, фотоочерка.
Загрязнения, русский
Вещества, находящиеся в воде во взвешенном, коллоидном и растворенном состоянии и мешающие использованию этих вод в промышленных или быто
Исследования, русский
Microscope, английский
- Microscopio
- A scientific instrument with lenses, which makes very small objects appear larger the tissue was examined under the microscope. under the microscope it was possible to see the cancer cells. comment: in an ordinary or light microscope the image is magnified by lenses. in an electron microscope the lenses are electromagnets and a beam of electrons is used instead of light, thereby achieving much greater magnifications.
- Device used to form a highly magnified image of tiny objects for clear visualization
- Instrument that provides enlarged images of small objects. microscope, compound: conventional microscope, using geometrical optics for magnification. also called laboratory microscope. microscope, interference: magnifier using the wavelength of light as a unit of measure for surface contour and other characteristics. microscope, metallographic: metallurgical microscope incorporating a camera. also called a metallograph. most metallographic microscopes share these features: (a) stand with concealed shock absorbers, (b) intense light source, (c) inverted stand so that the test object is face down, (d) viewing screens for prolonged tasks such as dirt count or grain size measurements, (e) bright, dark and polarized illumination options. microscope, metallurgical: microscope designed with features suited for metallography. microscope, phase contrast: laboratory microscope with two additional optical elements to transmit both diffracted and undiffracted light, revealing refractive index discontinuities in a completely transparent test object. microscope, polarizing: microscope with polarizing elements to restrict light vibration to a single plane for studying material with directional optical properties. as fibers, crystals, sheet plastic and materials under strain are rotated between crossed polarizers on the microscope stage, they change color and intensity in a way that is related to their directional properties. mig welding: see gas metal arc welding.
- Instrument that provides enlarged images of very small objects.
Wavelength, английский
- Light is made up of electromagnetic waves; wavelength is the crest (peak)-to-crest distance between two adjacent waves.
- Для оптических сетевых устройств длина волны светового потока составляет 850, 1300, 1310 и 1550 нм
- The optical term for frequency. fiber optics generally uses the 850 nm, 1300/1310 nm, 1550 nm and 1625 nm wavelengths for transmission purpose due to the marriage of performance with light sources, optical fibers, and optical detector technologies
- Distance in the direction of propagation of a periodic wave between two successive points at which the phase is the same. tel 203•377•8282 fax 203•378•2457 e-mail res_sales@oriel.com url www.oriel.com 9-17 polarization lenses optics prisms & filters beam splitters windows, substrates & mirrors properties of optical coatings optical materials
- The length of the light wave, usually measured from crest to crest, which determines its color. common units of measurement are the micrometer (micron), the nanometer, and the angstrom unit.
- The spatial period of a plane wave
- The distance between "waves" in the electromagnetic field, specified as angstroms or nanometers.
- The distance an electromagnetic wave travels in the time it takes to oscillate through a complete cycle. wavelengths of light are measured in nanometers (10-9 m) or micrometers (10-6m).
- The linear distance occupied by one complete cycle of vibration of an energy form from any given point to the next point characterized by the same phase.
- For light waves or sound waves, the distance between two successive points of a periodic wave in the direction of propagation, in which the oscillation has the same phase; the distance the wave travels in one period. for light waves three common units of wavelength are: micrometer, nanometer, and angstrom. wave molding, oundy molding, swelled chamfer, undulating molding, undy
- Длина волны wax 1. воск 2. парафин 3. пластичная глина way 1. путь; дорога 2. проход; переход 3. колея 4. направление, сторона 5. амер, расстояние
- The physical length between corresponding points of successive cycles of a wave. low frequencies have long wavelengths; high frequencies have short wavelengths.
- The distance between the crests of a wave in a radio signal, measured as the speed of light divided by the frequency in- hz.
- The distance between one peak of a wave and the next peak
- Light is measured by its wavelength (in nanometers) or frequency (in hertz). one wavelength. equals the distance between two successive wave crests.
- The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation.
- Distance between repeating values of a wave — for example, the distance from one peak to the next peak on a sine wave. wavelength is a fundamental descriptor when discussing wave behavior, system sensitivity, and diffraction effects.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave. wavelength is generally measured in nanometers when considering uv-a radiation (for example, 365 nm). compare frequency.
- Distance between repeating units of a wave. for example, the distance from one peak to the next peak.
- Distance needed in the propagation direction for a wave to go through a complete cycle.7,21
Magnification, английский
- The ratio of image to object size in an optical system. may be real (linear) or apparent (angular). milliradian (mrad)1/1000th of a radian, or 0.0573 degrees; the angle whose tangent is 0.001.
- The increase in the apparent or perceived size or subtended angle of an image in relation to actual size of object.
- Увеличение ~ of lens увеличение лупы
- The power of a microscope (or lens) to produce an image that appears larger than the actual specimen, expressed as a factor of the actual size
Resolution, английский
- The smallest change in the parameter being measured that causes a detectable change in the output of the instrument.
- Разрешение
- Defines the smallest resolvable object in the target plane at a given range-to-target, atmospheric condition and target signal level ability of a telescope to differentiate between two objects in the sky which are separated by a small angular distance
- The measure of the fine detail that can be seen in an image. for analog systems this is typically measured in television lines or tvl. the higher the tvl rating, the higher the resolution.
- Refers to the degree of detail of an image. it is usually measured in dots per inch (dpi) or lines per inch (lpi). a high resolution gives a high quality image and vice versa.
- The quality of any digital image, whether printed or displayed on a screen, depends in part on its resolution—the number of pixels used to create the image. more and smaller pixels adds detail and sharpens edges. l optical is an absolute number that the camera`s image sensor can physically record. l interpolated adds pixels to the image using complex software algorithms to determine what color they should be. it is important to note that interpolation doesn`t add any new information to the image it just makes it bigger! camera makers often specify the resolution as: qvga (320 x 240), vga (640 x 480), svga (800 x 600), xga (1024 x 768) or uxga (1600 x 1200)
- A measure of picture resolving capabilities of a television system determined primarily by bandwidth, scan rates and aspect ratio. relates to fineness of details perceived.
- The ability to distinguish fine detail or resolve information within an image.
- Refers to the number of pixels, both horizontally and vertically, used to either capture or display an image. the higher the resolution, the finer the image detail will be.
- The quality of any digital image, whether printed or displayed on a screen, depends on its resolution, or the number of pixels used to create the image. more, smaller pixels add detail and sharpen the edges.
- 1. the amount of detail which can be seen in a microscope or on a computer monitor 2. a point in the development of a disease where the inflammation begins to disappear
- Наименьшее расстояние между деталями, обеспечивающее их захват роботом
- Разложение (на составляющие) ~ of forces разложение сил ~ of vector разложение вектора
- Resolution is a rule used in logical inference. it states that if there is an axiom of the form (a or b) and another of the form (not(b) or c), then (a or c) logically follows. see also: modus ponens, modus tollens.
- Разрешающая способность. способность значимо различать близкие значения [28].
- A measure of the fineness of detail in an image or text, usually as produced by a monitor or printer.
- Loosely speaking, the quality of an image. when printing or working with images, the resolution is usually measured in dots per inch (dpi) - the more dots per inch, the higher the quality of the image but the larger the file needed to store it. in windows, the screen resolution is how many- pixels- fit on the desktop, the most popular being 800 x 600 and 1024 x 768 - the former makes images, icons etc look bigger, but the latter means you can fit more of them on the screen.
- The process of translation between a domain name address and an ip address.
- A document that records a decision or action by a board of directors, or a bond resolution by a government entity authorizing a bond issue.
- The number of dots in an image’s screen display or printed output. a monitor’s resolution refers to the number of pixels per linear inch. printed resolution refers to dots per linear inch. (see dpi.)
- The ability to distinguish between two points in an image
- Разрешающая способность. мера способности видеокамеры или телевизионной системы воспроизводить детали. число элементов изображения, которые могут быть воспроизведены с хорошей четкостью.
- Aspect of image quality pertaining to a system’s ability to reproduce objects, often measured by resolving a pair of adjacent objects or parallel lines. see also line pair; resolving power.
- Aspect of image quality pertaining to a system’s ability to depict objects, often measured by distinguishing (resolving) a pair of adjacent objects or parallel lines.
- A system’s ability to depict two objects or signals in close proximity as separate from one another. resolution, or resolving power, varies with size, distance, sensor characteristics, object shape, object color, and contrast. see also line pair; vision acuity.
- An aspect of image quality pertaining to a system’s ability to reproduce objects, often measured by resolving a pair of adjacent objects or parallel lines.6
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Elutration, английский
Отмучивание. метод отделения частиц на основании различий в их кажущейся массе, которые могут иметь место при суспендировании частиц в жидкости (предварительный стандарт мос, 8). на практике частицы обычно`оседают в направлении против восходящего потока текучей среды (например, воды или воздуха); более тяжелое вещество оседает на дно, а легкое вещество остается во взвешенном состоянии и переносится вместе со средой.
Efflux velocity, английский
Скорость выброса (истечения). линейная скорость, с которой газообразный выброс выделяется из дымовой трубы; равна объему газа, выделяющегося из отверстия трубы в секунду, деленному на площадь поперечного сечения отверстия. при низкой скорости выброса может произойти стекание (снос) газового потока вниз (см.- downwash). если несколько печей имеют общую дымовую трубу, но некоторые из них при этом не функционируют^ скорость выброса часто становится слишком низкой. поэтому желательно, чтобы внутри внешнего кожуха каждой печи был встроен отдельный дымоход, доходящий до отверстия трубы.
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