نتایج جستجو برای: hydration kinetics
تعداد نتایج: 111575 فیلتر نتایج به سال:
Throughout the world, large numbers of manual workers perform physically demanding labour in conditions of high environmental heat stress. Although the importance of adequate hydration in combating heat stress is universally recognized, studies in a range of worker groups have demonstrated a disturbingly poor hydration level in a high proportion of at-risk workers. Management of work in hot env...
Hydration behavior and antioxidising effect of aluminium (AI) powder has been investigated. Bayerite Al (OH) 3 product layers formed on Al in pure water at 25-45°C were porous, so the hydration rate, although very slow at 25°C, increased rapidly with increasing temperature from 25 to 45°C. On further increasing temperature from 45 to 95°C, initial hydration rate increased, but changed little ov...
This work aims to study the effect of a nucleating agent on cement hydration. Firstly, C-S-H crystal nucleation early strength (CNA) is prepared. Then, effects CNA hydration mechanism, enhancement effect, content, 28-days degree and fractal dimension products are studied by kinetics calculation, resistivity test, BET specific surface area test quantitative analysis backscattered electron (BSE) ...
The aggregation kinetics of thermoresponsive core-shell micelles with a poly(N-isopropyl acrylamide) shell in pure water or in mixtures of water with the cononsolvents methanol or ethanol at mole fractions of 5 -% is investigated during a temperature jump across the respective cloud point. At the cloud point, aggregates are formed, and their growth is followed with time-resolved smallangle neut...
The declining water availability for agriculture is becoming problematic for many countries. Therefore the study of plants under water restriction is acquiring extraordinary importance. Botanists currently follow the dehydration of plants comparing the fresh and dry weight of excised organs, or measuring their osmotic or water potentials; these are destructive methods inappropriate for in-vivo ...
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