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Crown glass
| Fiber Optic Glossary |
- A type of optical glass with relatively low refractive index and dispersion.
- A spectacle lens material of 1.523 index. crp (corneal reflection pupilometer) – a device used to measure the distance between pupils of the eyes in millimeters. crt (computer reading trifocal) – a multifocal design that features wider intermediate areas with a 70% add strength. they are suited for arms-length distance such as computer screen.
- A handmade glass of soda-lime composition, used for windows; manufactured in the early 19th century by a now-obsolete process in which a hollow sphere of glass was blown while still very soft, then spun to form a large, nearly flat circular disk. during the spinning process, ripple lines were formed in a pattern of concentric circles, with their center at the center of the spun disk; this central area was used in a bull’s eye window. also
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Crown, английский
- The center area of a tire's tread.
- Upper part of a tree, including the branches and foliage (28).
- The top of the piston in an internal combustion engine above the fire ring, exposed to direct flame impingement.
- Part of the restoration that appears as a natural tooth.
- Corona
- 1. the top part of a tooth above the level of the gums 2. an artificial top attached to a tooth 3. the top part of the head verb to put an artificial crown on a tooth
- A common denomination in most parts of europe for a silver coin, varying in local value from 2_s. 6_d. sterling to 8_s. (see also prerogative.)—crown of an anchor. the place where the arms are joined to the shank, and unite at the throat.—crown of a gale. its extreme violence.—in fortification, to crown is to effect a lodgment on the top of; thus, the besieger crowns the covered way when he occupies with his trenches the crest of the glacis.
- The point where the arms of an anchor join the shank. crown-and-anchor: board game, formerly popular with british naval ratings but now banned due to excessive gambling. crow’s nest: a platform or shelter for a lookout near the top of a mast. viking longships are believed to have carried crows in cages attached to their mastheads (see as the crow flies). later, when sailing ships began to carry lookouts in a tub strapped to their main masthead, this inevitably became known as the “crow’s nest.” whaling ships often carried a second smaller tub mounted even higher on an upper mast and called the “bird’s nest.”
- The angled edge of a diamond or other gemstone, located between the girdle plane and table (top).
- The area of a diamond above the girdle plane. it consists of the table and the crown facets below it.
- This is the upper portion or the top of a diamond from the girdle up.
- As used by the drilling and bit-setting industries in the united states, the portion of the bit inset or impregnated with diamonds formed by casting or pressure-molding and sintering processes; hence the steel bit blank to which the crown is attached is not considered part of the crown. 536427 o—60 3
- The topmost part of a drill tripod, derrick, or mast.
- Used in some countries other than the united
- The highest point of the pipe or tunnel.
Crown (of arch), английский
Crown -, английский
- Высота свода (над головкой рельса)
- Замковый шарнир (арки} door ~ дверная петля
Crown angle, английский
The angle measured between the girdle plane and the bezel facets. along with table size the crown angle helps determine the amount of dispersion displayed by the diamond.
Crown block, английский
A pulley, set of pulleys, or sheaves at the top of a drill derrick on and over which the hoist and/or other lines run. also called crown pulley, crown wheel.
Crown block compensator, английский
Кронблочный компенсатор (компенсатор бурильной колонны, встроенный между кронблоком и вышкой
Crown bud, английский
Crown cement, английский
Crown class, английский
All trees in a stand whose tops or crowns occupy a similar position in the canopy or crown cover (28).
Crown course, английский
A course of curved asbestos sheet or tile, used to cap the ridge of a roof.
Crown court, английский
This is one of the two types of criminal courts. it is the higher of the two courts, above the magistrates` court.
Crown cover, английский
Ground area covered by a crown, as delimited by the vertical projection of its outermost perimeter (26).
Crown cut, английский
A method of slicing veneers whereby the average inclination of the growth rings to the wider face is tangential or less than 45 degrees. this method is also known as flat cut.
Crown density, английский
Thickness, both spatially (depth) and in closeness of growth (compactness) of an individual crown as measured by its shade density. collectively, crown density should properly be termed canopy density, as distinct from canopy cover (26).
Crown die, английский
Crown fire, английский
Crown gear (gears), английский
A bevel gear with a plane pitch surface. among bevel gears, the crown gear corresponds to the rack in spur gears.
Crown graft, английский
Crown height, английский
- Vertical distance of a standing tree from ground level to the base of the crown, measured to the lowest live branch whorl or to the lowest live branch (excluding epicormics), or to a point halfway between the two (26).
- The part of the diamond above the girdle.
Crown height percentage, английский
The crown height expressed as a percentage of the average girdle diameter.
Relatively, английский
Refractive, английский
Dispersion, английский
- Увеличение ширины импульса сигнала при его распространении по оптоволокну. основной фактор, ограничивающий полосу пропускания многомодового оптоволокна.
- Дисперсия.
- Эффект расширения световых импульсов во время их передачи по оптическому волокну. дисперсия пропорциональна длине кабеля (см. также хроматическая дисперсия).
- Refers to the spread of values observed for a variable. the standard deviation is a measure of dispersion, in contrast to the mean which is a measure of central tendency or location.
- The cause of bandwidth limitations in fiber. in multimode systems, modal dispersion is caused by differential optical path lengths known as differential path delay. for singlemode systems, chromatic dispersion is a combination of material dispersion (caused by the line width of the laser source) and waveguide dispersion (caused by the difference in the speed of light in the core and the cladding of the fiber). another type of dispersion is polarization mode dispersion (pmd), which is caused by random vibration, temperature variations, and bending of the fibers known as birefringence
- (1) the variation in the refractive index of a medium as a function of wavelength. (2) the property of an optical system which causes the separation of the monochromatic components of radiation.
- The dependence of the phase velocity in a medium on the optical frequency or the propagation mode
- The stretching of light pulses as they travel in an optical fiber, which increases their duration. the temporal spreading of a light signal in an optical waveguide caused by light signals traveling at different speeds through a fiber either due to modal or chromatic effects.
- This occurs when white light is split into separate wave lengths and component colors.
- Модовая дисперсия dispersion-compensating fiber волокно с компенсацией дисперсии
- Also known as "fire," dispersion refers to the separation of white light into different colors.
- Separation of white light into spectral colours, each of which vibrates at a different frequency. also called fire.
- Sometimes referred to as fire, dispersion is the break-up of white light into a spectrum of colors.
- 1. a system consisting of finely divided particles and the medium in which they are distributed. 2. separation of light into colors by diffraction or refraction. 3. a qualitative estimation of the separation and uniform distribution of fibers in the liquid during the production of a wet-formed nonwoven fabric.
- Losses`, pi потери воды при капельном орошении за счет фильтрации за пределы очага увлажнения
- The separation of light of different frequencies due to different degrees of refraction
- In acoustics, variation of wave phase with frequency.
- In acoustics, variation of wave phase with frequency.7
Reflection, английский
- The abrupt change in direction of a light beam at an interface between two dissimilar media that returns the beam into the medium where it originated, i.e., a mirror
- A light ray incident on an air to glass interface will have some of its energy redirected back toward its origin due to reflection at the interface.
- The return of radiant energy (incident light) by a surface, with no change in wavelength.
- The bouncing off of light which falls upon a surface.
- The change of direction which a ray of light, sound, or radiant heat undergoes when it strikes a surface; also
- 1. the image of somebody or something which is seen in a mirror or still water 2. the process of reflecting something, especially light, sound or heat 3. careful thought 4. a situation in which an anatomical structure bends back upon itself
- The process of obtaining information about assemblies and the types defined within them, and creating, invoking, and accessing type instances at run time.
- When light bounces back from a surface
- General term for the process by which the incident energy leaves a surface or medium from the incident side, without change in frequency. reflection is usually a combination of specular and diffuse reflection.2,6
- General term for the process by which the incident energy leaves a surface or medium from the incident side, without change in frequency. reflection is usually a combination of specular and diffuse reflection (iesna 1984). see also diffuse reflection; specular reflection.
- The act of thinking deeply about one`s actions, behaviour`s, and progress, often facilitated by a coach or mentor to promote self-awareness and learning.
Pupilometer, английский
An optical device for measuring the diameter, width, or area of the pupil of the eye. q
Intermediate, английский
- Between two others.
- Промежуточный
- Промежуточное звено
- Chemical term for an igneous rock containing 54 to 62% silica and usually
Composition, английский
- Состав
- A photographic process in which patterns on two separate substrates are
- The arrangement of subject matter, graphic elements, tones, and light in a scene. can be harmonious or discordant, depending on the photographer, his or her mood, and the subject at hand. there are no set rules, just suggestions; successful compositions are ones that best express particular feelings about the subject or scene.
- N словосложение; образование (ант. decomposition) polysynthetic ~ полисинтетическое объедине- ние
- A composition is a function or relationship that can be constructed from other functions or relationships. for example, the function grandparent(x) is a recursive composition of the parent() function, grandparent(x) = parent(parent(x)). compositional rule of inference (cri) see: fuzzy associative memory. computer-aided design (cad) the process of using a computer to aid in the design and (cadcam) manufacture of objects or systems. the complexity of these systems range from basic drawing systems through systems that can warn you about basic dimensional constraints to systems that understand and implement constraints based on other properties of the objects in the system. it is used for the design of mechanical, electronic, construction, and other systems. computer-aided education the use of computers to aid in the education of personnel. computer-aided instruction, intelligent see: intelligent computer-aided instruction. computer integrated manufacturing (cim) computer integrated manufacturing refers to the integration of computer sensors and controllers into a manufacturing process. this includes three types of functions. first the computers provide programmable and flexible automation of the manufacturing process. this leads to the ability to optimize the process flexibly to react to current variations in the process. finally, the various sensors and controllers can be integrated into a comprehensive system.
- A whole-part relationship in which the life cycle of the part object is dependent on the life cycle of the whole object.
- An activity flow created from multiple actions. composition is core to the human workflow services system.
- An export format that flattens a group of images defined in a deep zoom composer project into a single high-resolution image that is generated at export.
- One or more images that are positioned, arranged, ordered, and proportionally resized according to a user’s specifications within a deep zoom composer project.
- Voluntary arrangement to restructure a firm`s debt, under which payment is reduced.
Manufactured, английский
Concentric, английский
- Концентрический
- Curved lines or surfaces having a common center of curvature.
- Having a common center.
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Diffraction limited lens, английский
A lens with negligible residual aberrations.
Convex, английский
- A solid curved surface similar to the outside surface of a sphere.
- Выпуклый
- Refers to a non-linear asset pricing relationship. see convexity.
- Curved or rounded as the exterior of a spherical or circular form viewed from without; opposite of concave.
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