| KHN | Knoop hardness number |
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| Knoop | Hedwig, German physician, *1908. See: Knoop's theory. (05 Mar 2000) |
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| Knoop hardness number | A number obtained by dividing the load in kg applied to a pyramid-shaped diamond of specific size divided by the projected area of the impression: KHN = L/A, where A= the projected area of the impression in mm2 and L= the load in kg; used for measurements of hardness of any materials, especially very hard and brittle substances such as tooth dentin and enamel. (05 Mar 2000) |
| Knoop's theory | That the catabolism of fatty acids occurs in stages in each of which there is a loss of two carbon atoms as a result of oxidation at the beta-carbon atom, e.g. (05 Mar 2000) |
| Knoop hardness number |
A number related to the applied load and to the projected area of a rhombic-based diamond indentor, with edge angles of 172 1/2 30' and 130 1/2.
출처: www.sfsa.org/sfsa/glossary/deftrmkk.html
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| Knoop hardness n. |
a number indicative of the degree of relative hardness of a material, calculated from the load employed and the length of the long axis of the impression made by the rhomboidal pyramid of a diamond pressed into the surface of the material being tested. It is the test most commonly used in dental practice to test the hardness of teeth.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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