نتایج جستجو برای: protective materials
تعداد نتایج: 545555 فیلتر نتایج به سال:
Diphenylmethane diisocyanate (MDI) is a sensitizing chemical that can cause allergic contact dermatitis and asthma. Protective gloves and clothing are necessary to prevent skin exposure. Breakthrough times are used for the selection of chemical protective gloves and clothing. In the EN 374-3:2003 European standard, breakthrough time is defined as the time in which the permeation reaches the rat...
Marine organisms have developed a wide variety of protective strategies to thrive in their native environments. These biological materials, although formed from simple biopolymer and biomineral constituents, take on many intricate and effective designs. The specific environmental conditions that shape all marine organisms have helped modify these materials into their current forms: complete hyd...
We have considered the general requirements for protective helmets, as well materials used in process of their manufacturing. analyzed modern helmets by workers during work areas with heat output. also provided schemes design elements heat-protective different types cooling.
The increase of flexible protective materials strength characteristics by electrophysical influences
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