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F-n kurve
| Глоссарий по проходческим щитам (тоннелингу) |
En kurve som grafisk fremstiller samfundsrisiko knyttet til tab af menneskeliv hvor y-aksen viser kumulativ frekvens (f) og x-aksen viser konsekvenser.
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Fn curve, английский
A typical representation of societal risk as a graph with the ordinate representing the cumulative frequency distribution of n or more units of consequence (e.g. fatalities) and the abscissa representing the corresponding consequence.
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F-number, английский
- Указывает яркость изображения формируется объективом, контролируемые по радужной оболочке глаза. чем меньше f-число, тем ярче изображение.
- Indicates the brightness of the image formed by the lens, controlled by the iris. the smaller the f-number the brighter the image.
- In lenses with adjustable irises, the maximum iris opening is expressed as a ratio
- The standard measure of the lens aperture, which is the iris diameter, divided by the focal length of the lens. the lower the maximum aperture (f-number or f-stop), the more light that passes through the lens.
- In lenses with adjustable irises, the maximum iris opening is expressed as a ratio (focal length of the lens)/(maximum diameter of aperture). this maximum iris will be engraved on the front ring of the lens.
- The focal length of lens divided by its usable diameter. in the case of a laser, the usable diameter is the diameter of the laser beam or a smaller aperture which restricts a laser beam.
- In photography, the diameter of the aperture expressed in terms of the focal length of the camera lens. the greater the f-number, the less light reaches the film and the more in focus the objects in the foreground and the background will be. for example, with an f-number = 16 the objects in the far background will be in focus. whereas, with an fnumber = 2 the background will be blurry (while foreground objects are in focus). foad
F-number, f-stop, английский
F-number, f-stop. the numerical value of a lens aperture. the ratio of the focal length of the lens divided by its effective aperture diameter.
F-numbers, английский
A series of numbers designating the apertures, or openings at which a lens is set. the higher the number, the narrower the aperture. for example, f/16 is narrower (by one stop) than f/11--it lets in half as much light. an f-number range might be f/2.8, f/4, f/5.6, f/8, f/11...to find the next aperture in a narrowing series, multiply by 1.4. f-numbers are arrived at by dividing the diameter of the opening into the focal length of the lens, thus a 10mm diameter opening on a 110mm lens is f/11. alternately used with f-stops.
Kurve (f.) nicht koordiniert fliegen, немецкий
Samfundsrisiko, датский
Risiko som er relevant for samfundet, normalt udtrykt ved forventet antal dræbte eller ved en f-n kurve.
Konsekvens, датский
Virkningen af en hændelse med hensyn til skade på personer, ejendom eller miljø.
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Frekvens, датский
Antal gange en specifik hændelse indtræffer indenfor et specificeret tidsrum (for eksempel antal ulykker på et år).
Bemærk: dette lys er placeret med flere meters afstand på begge sider af nødudgange indikerende flugtvejsmulighed fra begge sider. ", датский
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