نتایج جستجو برای: line
تعداد نتایج: 411626 فیلتر نتایج به سال:
چکیده : در این پایان نامه طراحی و ساخت کوپلر branch-line سه بانده با استفاده از ساختاری که در سه فرکانس جداگانه می تواند جانشین خط انتقال ?/4 با امپدانس مشخصه z_c در یک کوپلر branch-line معمولی شود انجام می شود. این ساختار به گونه ای طراحی می شود که بتواند در فرکانس طراحی f_0 فاز 3?/2 ، در فرکانس تشدید f_1 باند پایین فاز ?/2، در فرکانس تشدید f_2 باند بالا فاز 5?/2 و امپدانس مشخصه z_c مطلوب را د...
abstract background and aims: to identify and isolation of viruses a susceptible cell is need which can be primary or line. the use of primary cells is laborious, time consuming and expensive, while the use of cell lines is much easier and faster. irkhbk cell line was originated from primary cells of bovine kidney by continuous passage. the aim of this study was to introduce the irkhbk cell lin...
background: the activity and toxicity of etoposide in women with recurrent ovarian cancer was evaluated in a case series of women with recurrent ovarian cancer who had measurable disease, methods: all patients had plior platinum-based chemotherapy and developed progressive disease, etoposide was given as 50mg/day for 21 days every 4 weeks until progression of disease or prohibitive toxicity, be...
in this paper, the deep drawing process of tailor welded blanks is simulated using the finite element modelling and verified using the experimental results available in the literature. then the effect of die and material properties on the welding line movement is investigated. it is seen that the most effective material parameters on weld line movement are different between sheet metal thicknes...
مقدمه: لیپوپپتیدهای pseudomonas مانند white line-inducing principle (wlip)، دارای فعالیت های ضد میکروبی حایز اهمیتی می باشند. زمانی که باکتری مولد wlip در مجاورت با pseudomonas tolaasii کشت داده شود، خط سفید رنگی در بین آن ها ایجاد خواهد شد. با شناسایی راهبرد white line reaction (wlr) و بررسی تنوعات آن در انواع مختلف pseudomonas شاید بتوان از آن به عنوان رویکردی برای درمان بیماری های عفونی استف...
background: adipose tissue has characteristics of an endocrine organ which releases a number of adipocyte-specific factors, known as adipocytokines. it has recently suggested that adipocytokines might play a role in pathogenesis and progression of certain cancers, especially in gastric cancer. this study has managed to investigate endogenous and/or exogenous expression of visfatin and resisti...
conclusions the mtbdrplus and mtbdrsl genotypic testing can serve as useful additional tools for dst in a high-burden country like pakistan provided it is used in combination with phenotypic testing. results the sensitivity of mtbdrplus for isoniazid and rifampicin was found to be 88.8% and 90.2%, respectively, while sensitivity of mtbdrsl for fluoroquinolones, amikacin/capreomycin, and ethambu...
background: mehr-80 is a newly established adherent human large cell lung cancer cell line that has not been transfected until now. this study aims to define the optimal transfection conditions and effects of some critical elements for enhancing gene delivery to this cell line by utilizing different non-viral transfection procedures. methods: in the current study, calcium phosphate (cap), deae-...
many cell lines, when cultured under proper conditions, can form three dimensionalstructures called multicellular spheroids. these spheroids resemble in vivo tumor models in severalaspects. therefore, studying growth characteristics and behavior of spheroids is beneficial inunderstanding the behavior of tumors under various experimental conditions. in this work, we havestudied the growth proper...
application of feed pellets in animal and aquatic farming industries has grown because of both the physical and the nutritional benefits it provides. development of feed pellets manufacturing industry is also considerable. steam conditioning process, which plays an important role in pelleting production, includes heating feed particles, adding moisture, and mixing the mash. pellets cooling and ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید