نتایج جستجو برای: micro
تعداد نتایج: 115111 فیلتر نتایج به سال:
The trend to miniaturization cannot be overseen. The use of very small electronic and electro-optical components in a variety of consumer and investment goods is leading to an increasing demand for small-scale servo actuators for micro assembly applications in production equipment. The previous generation of micro gears and micro actuators was not suited to this type of application, because of ...
background: l-menthol [(1r,3r,4s)-(-)-menthol] is a flavoring that is the main component of mint herb essential oils, especially of the mentha piperita and mentha arvensis species. its low solubility in aqueous systems makes precise formulation necessary in the final products. of the methods available for fabrication of nanoparticles for use in pharmaceuticals, electrospraying is easy and requi...
as it is seen, by passing the evolutionary process of banding of orthodontic attachments to the bonding ones, orthodontics have witnessed many developments, such as application of new adhesives, optimized base designs, new bracket materials, curing methods and more efficient primers. the studies often address the morphological, micro-leakage, and shear bond tests to evaluate bond efficacy. amon...
چکیده ندارد.
noncoding ribonucleic acids micro-rna is involved in the regulation of gene expression have major roles in the post-transcriptional level. a micro-rna alone several causes down regulation of mrna transcript of the target. thus, small changes in the expression of a micro rna may lead to significant changes in gene expression are different. micro- rna as key regulators of immune cell lineage diff...
mass vaccination against viral infections such as mumps is a very noticeable and appropriate attempt in common health. mumps infection has severe complications like deafness, infertility and meningitis. attenuated live vaccine of mumps is produced and used to prevent the problems. viral content in the monovalent vaccine is assayed with different methods. nowadays international standards introdu...
objective: in this article, a numerical study is conducted on mixing of two fluids in the liquid phase with two different concentrations of a chemical species in the electro-osmotic flow. methods: the base liquid is an electrolyte which flows in a two-dimensional micro-channel having electrically charged walls. lorentz electric force, which is used as stimulating flow factor, is created by appl...
abstract: this study was aimed at probiotication of tomato and carrot juices using lactobacillus plantarum, lb. fermentum, lb. casei, lysinibacillus sphaericus and saccharomyces boulardii. to enhance the stability, the probiotic cultures were micro-encapsulated using alginate coated chitosan beads. tomato and carrot juice samples were pasteurized for 20 min at 63 °c. lb. fermentum, lb. plantara...
زمینه و هدف : با افزایش اندازه تومور، محیط سلولهای توموری هیپوکسیک و اسیدیک شده و سلول ها شروع به افزایش تولید چندین نوع عامل رشد میکنند که در نتیجه آن تشکیل رگهای خونی موضعی آغاز میشود. به دنبال آن متاستاز سلول های سرطانی از طریق عروق خونی اتفاق می افتد، لذا مهار رگزایی می تواند روش جدیدی برای درمان سرطان باشد. این مطالعه به منظور آنالیز بیوانفورماتیکی برای پیش بینی میکرو rna های بالقوه مه...
acetonitrile used as a solvent in manufactures and affects to central nervous system from inhalation exposure. the aim of this study was to develop a micro-solid phase extraction method for the determination of acetonitrile in the air matrix. the sampling was performed with a small diameter fused silica fiber coated with a thin film of stationary phase and was subsequently desorbed and analyze...
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