نتایج جستجو برای: chemical forms
تعداد نتایج: 634597 فیلتر نتایج به سال:
industry is the need to identify and characterise all of the various physical forms of potential drug candidates. Most chemical compounds exist both in amorphic and multiple crystalline forms. The different crystal forms are also known as polymorphs. Polymorphism describes the solid state phenomenon where crystalline materials of the same chemical composition adopt more than one stable or meta-...
In this paper, we study generalized quadratic forms over a division algebra with involution of the first kind in characteristic two. For this, we associate to every generalized quadratic from a quadratic form on its underlying vector space. It is shown that this form determines the isotropy behavior and the isometry class of generalized quadratic forms.
In this work, we investigated generating argon cold plasma jet at atmospheric pressure based on dielectric barrier discharge configuration using three electrical power supplies of sinusoidal, pulsed and saw tooth high voltage shapes at 8 KHZ. At first; we describe the electronic circuit features for generating high voltage (HV) wave forms including saw tooth, sinusoidal and pulsed forms. Then, ...
Distribution of selenium in zebrafish larvae after exposure to organic and inorganic selenium forms.
Selenium is an essential micronutrient for many organisms, and in vertebrates has a variety of roles associated with protection from reactive oxygen species. Over the past two decades there have been conflicting reports upon human health benefits and detriments arising from consumption of selenium dietary supplements. Thus, early studies report a decrease in the incidence of certain types of ca...
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