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| Articles by Ma tracy |
581. Whether bulk density can reflect granularity and particle type of silicon carbide powder
June 18, 2012
Bulk density of micronized powder is the ratio of unit volume in the state of natural accumulation and granular forms. The volume in natural accumulation state is the gap between particles and particle size. The packing density is an important technical parameter of carbide silicon powder. It means ...
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582. Using tretinoin in pregnancy period may cause fetal mental retardation
June 18, 2012
Scientific studies have found that tretinoin (vitamin A) has effective effect of anti acne and cosmetic. It gets rid of acne, smooth fine lines and dilutes the stain into the narrow pores. However, because these drugs have a pungent, many patients once abandoned to use it. If people buy tretinoin an...
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583. Anticancer drug irinotecan is not suitable for everyone
June 17, 2012
Drugs need to be metabolized through a series of enzymes in the body. Some drugs have low activity after the enzyme metabolism. And some drugs transform into the active form after metabolism. Among them, transfering enzymes of uridine diphosphate glucuronyl are responsible for reducing toxicity of s...
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584. It is a long journey for Chinese copper powder to achieve internationalization
June 17, 2012
In recent years, Chinese copper powder industry has undergone earth-shaking changes and achieved gratifying results. The technology level of Chinese copper powder has been greatly improved each year. The growth rate of productivity ranks head in the world. The market share also has a large-scale exp...
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585. Characteristics of glutathione
June 17, 2012
Glutathione can inhibit activity of tyrosinase. Once the metabolism of tyrosinase activity has been inhibited, it will synthesize phaeomelanin rather than eumelanin which causes black and darkness on skin. L-gltathione can increase the metabolism of melanin, it is easy to rapidly change the skin and...
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586. Health effects of chia seed
June 14, 2012
Chia seed is a health ingredient with very high value. It provides adequate calcium and protein for human tissue. This seed is also rich in boron and can help absorption and utilization of calcium. The nutrition also helps to maintain brain function. Chia seed contains more than 20 kinds of amino ac...
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587. Discussion about application of nickel powder in waterborne coatings
June 14, 2012
In recent years, with the strengthening of environmental policies and improvement of people's living standards, waterborne architectural coatings have a rapid development. At the same time, along with the development of science technology and social productivity, the human have growing attention on ...
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588. Desthiobiotin
June 14, 2012
The desthiobiotin is a water-soluble vitamin. It is widely distributed in animal and plant tissue. It is isolated from the liver extract and egg yolk. It becomes a composition of multiple carboxylase cofactor and usually known as biocytin.
Biotin carboxyl carrier needs ATP in the carboxylati...
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589. Market of pharmaceutical raw materials and its investment prospects
June 13, 2012
Pharmaceutical raw materials are prepared by technologies of chemical synthesis, plant extracts or biotechnology. They are medicinal powder, crystallization, extract, etc. But the substances can not be taken directly by patients. These powders, crystalline, extracts are made to facilitate the patien...
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590. Atomized metal powder in soft magnetic area
June 13, 2012
With continuously improvement in the performance of electronic equipment in recent years, malfunction and mutual interference between the components are caused by unwanted electromagnetic wave (noise) in the machine. So there is an increasing emphasis on measures to prevent electromagnetic interfere...
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Author: Ma tracy
