نتایج جستجو برای: microtextured surface

تعداد نتایج: 635443  

Journal: :international journal of reproductive biomedicine 0
tahereh talaei tahereh esmaeelpour fatemeh aekiyash soghra bahmanpour

background: ‍‍cryopreservation has some detrimental impacts on sperms surface molecules. modification of the sperm surface molecules can affect on fertility rate. one of the important surface molecules are glycoconjugates. objective: the objective of this study was to evaluate the changes of content of the glycocalyx after standard cryopreservation procedure. materials and methods: forty five h...

Journal: :avicenna journal of dental research 0
f firouz assistant professor, dept. of prosthodontics, dental faculty, hamadan university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) f vafaei assistant professor, dept. of prosthodontics, dental faculty, hamadan university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) b heidari assistant professor, dept. of prosthodontics, dental faculty, hamadan university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) s soufiabadi post - graduate student, dep t . of prosthodontics, dental f aculty , hamadan university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) a saleh post - graduate student, dep t . of prosthodontics, dental f aculty , hamadan university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) a ansari dentist, private practice, iran

statement of the problem although the primary use of tissue conditioners is to treat abused mucosa, these materials are also frequently used as functional impression materials. insufficient information is available on the effect of these materials on the surface of dental stone casts. purpose this study evaluated the effect of a tissue conditioner (acrosoft) on surface roughness of dental stone...

Journal: :iranian journal of microbiology 0
fatemeh ramezani hepatitis b molecular laboratory-department of virology-school of public health-tehran uni- versity of medical sciences, tehran, iran. seyedmoayed alavian middle east liver diseases center (meld centers), tehran, iran. ahmadreza sadeghi hepatitis b molecular laboratory-department of virology-school of public health-tehran uni- versity of medical sciences, tehran, iran. abolfazl khedive hepatitis b molecular laboratory-department of virology-school of public health-tehran uni- versity of medical sciences, tehran, iran. leila ghalichi mental health research center, iran university of medical sciences, tehran, iran. mehdi norouzi hepatitis b molecular laboratory-department of virology-school of public health-tehran uni- versity of medical sciences, tehran, iran.

background and objectives:   iranian chronic hbv carrier’s population has shown a unique pattern of genotype d distri- bution all around the country. the aim of this study was to explore more details of evolutionary history of carriers based on structural surface proteins from different provinces. materials and methods: sera obtained from 360 isolates from 12 different regions of country were u...

Journal: :dental research journal 0
mustafa zortuk servet kesim esma kaya hatice özbilge kerem kiliç özlem çölgeçen

background: when provisional restorations are worn for long term period, the adhesion of bacteria becomes a primary factor in the development of periodontal diseases. the aims of this study were to evaluate the surface roughness and bacterial adhesion of four different provisional fixed prosthodontic materials. methods: ten cylindrical specimens were prepared from bis-acrylic composites (previs...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشکده علوم پایه 1388

چکیده ندارد.

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2012
r. arokiadass* k. palaniradja n. alagumoorthi

metal matrix composites have been widely used in industries, especially aerospace industries, due to their excellent engineering properties. however, it is difficult to machine them because of the hardness and abrasive nature of reinforcement elements like silicon carbide particles (sicp).in the present study, an attempt has been made to investigate the influence of spindle speed (n), feed rate...

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