Canyon
发表于 2025-3-30 10:18:18
0258-1221 ction held at the "E . Majorana" International Centre for Scientific Culture in Erice (Italy) from May 9 to May 20, 1989. This course was the last of a series of 4 courses, started in 1981, that were dedicated to the assessment of risk hazard from non-ionizing radiation. The proceedings of these cou
转折点
发表于 2025-3-30 15:47:31
0258-1221 applications, biological effects and hazard potential", Plenum Press, New York (1987). We hope that all these volumes together may represent a complete textbook978-1-4899-0663-2978-1-4899-0661-8Series ISSN 0258-1221
linear
发表于 2025-3-30 17:50:59
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宴会
发表于 2025-3-30 22:36:41
Laser Radiation Detectors to levels as small as the Accessible Emission Limit (AEL). AELs range in value from tenths of microwatts or microjoules in the visible and near infrared (400–1400 nm) to millijoules in other parts of the spectrum. Hazard classification at the Class 4 level requires that cw radiant powers of at leas
motor-unit
发表于 2025-3-31 02:48:36
Quantitative Determination of Ultraviolet Radiationg instruments may be used when high accuracy is really not necessary. Polysulphone film detectors may be used in those situations where direct reading is not feasible, several simultaneous measurements are desired, or in a harsh environment where electromagnetic interference is present. The exposed
Obstruction
发表于 2025-3-31 05:45:40
Anatomy and Physiology of the Skinon by means of the fingerprint patterns. The lost of elasticity, and an increase of folds and ridges are characteristic of the skin aging, together with the appearance of brownish stains. The colour of the skin is largely variable according to the race, sex, age, vasodilatation, effort, emotional st
向宇宙
发表于 2025-3-31 10:45:20
Potential Ocular and Skin Hazards from Lamps and Projector SystemsLimit Values Suggested Changes for 1990 (ACGIH, 1990) suggest that sources such as tungsten halogen lamps can exceed exposure limits for short wavelength visible light. This is commonly referred to as the “blue-light” hazard. Allistair McKinlay describes this standard in detail in another section of
gerontocracy
发表于 2025-3-31 16:49:52
Book 1991na International Science Series, Life Sciences, Vol. 19 (1985) ; 3) M. H. Repacholi, M. Grandolfo and A. Rindi, Eds. : "Ultrasound; medical applications, biological effects and hazard potential", Plenum Press, New York (1987). We hope that all these volumes together may represent a complete textbook
considerable
发表于 2025-3-31 18:17:04
h, mal als Push- und mal als Pull-Medium fungieren. Deshalb wird die Darstellung ihrer Funktionsweise und markanten Eigenheiten durch ihre Wirkungsweise im Hinblick auf die Dimensionen Bekanntmachung, Image, Einstellungen und Verhalten ergänzt. Praktische Hinweise für die erste Implementierung der K
挫败
发表于 2025-3-31 23:22:26
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