نتایج جستجو برای: chloride threshold values

تعداد نتایج: 693589  

2007
F. A. Ansari V. Bihari S. K. Rastogi M. Ashquin I. Ahmad

About 673 small-scale asbestos mining and milling facilities and 33 large - scale asbestos manufacturing plants, (17 asbestos-cement product manufacturing plants and 16 other than asbestos-cement product plants) are situated in India. The present study reveals the exposure of commercial asbestos (chrysotile) in the occupational as well as ambient air environment of the asbestos-cement (AC) shee...

Journal: :American journal of industrial medicine 2000
V van Kampen R Merget X Baur

BACKGROUND Worldwide, there is rigorous scientific activity concerning the further development of work safety regulations involving airway-sensitizing substances. Technical directives on hazardous substances are enforced in several countries and are being continuously updated. The European Union has established a code for several occupational substances, now labeled R 42 ("may cause sensitizati...

2015
Tomoki Fujii

It is essential to understand the consumption pattern of food and how it changes over time to formulate sound economic policies as well as marketing and pricing strategies. In this study, we estimate the Quadratic Almost Ideal Demand System with six rounds of the Family Income Expenditure Survey exploiting the conditional linearity of the demand system. We find that the Filipino diet has become...

Journal: :Journal of Japan Society of Civil Engineers, Ser. E2 (Materials and Concrete Structures) 2015

Journal: :The Journal of Physiology 1929

1999
Lianfang Li

Reinforcing steel bars (-12mm diameter and 150mm long) were used in cyclic polarization tests in saturated Ca(OH)z solution and simulated concrete pore solution (SPS) with various levels of sodium chloride addition. Below a limiting chloride level (-O.004M [Cl-] in Ca(OH)z solution and -0.4M [Cl-] in SPS solution), steel was not found to undergo pitting corrosion even if it was polarized to the...

Journal: :فیزیک زمین و فضا 0
وحید ورشاویان دانش آموختة کارشناسی ارشد هواشناسی کشاورزی، گروه مهندسی آبیاری و آبادانی، دانشکدة مهندسی و فناوری کشاورزی، دانشگاه تهران، ایران علی خلیلی استاد، گروه مهندسی آبیاری و آبادانی، دانشکدة مهندسی و فناوری کشاورزی، دانشگاه تهران، ایران نوذر قهرمان استادیار، گروه مهندسی آبیاری و آبادانی، دانشکدة مهندسی و فناوری کشاورزی، دانشگاه تهران، ایران سهراب حجام دانشیار، گروه هواشناسی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران، ایران

an increase, even moderate, in global temperature is expected to result in a change in frequency of extreme weather events like drought, heavy rainfall and storms. the study of extreme events is difficult due to the fact that it is difficult to find long-term homogeneous data series. also the delimitation of extreme events is not univocal since a parameter value that would be defined as an extr...

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