نتایج جستجو برای: duplex ultra
تعداد نتایج: 75972 فیلتر نتایج به سال:
Recently the in-band full-duplex in wireless communication has evolved into a mature technology since the self-interference cancellation technique is able to support fullduplex capability. Moreover, some researchers focus on the full-duplex media access control (MAC) protocol design for wireless local area networks (WLANs). However, it is assumed that all the node have full-duplex capability in...
Mobile traffic is projected to increase 1000 times from 2010 to 2020. This poses significant challenges on the 5th generation (5G) wireless communication system design, including network structure, air interface, key transmission schemes, multiple access, and duplexing schemes. In this paper, full duplex networking issues are discussed, aiming to provide some insights on the design and possible...
materials and methods in silico analysis of the cadf gene was carried out by several software and available online tools. a duplex pcr optimized with specific primers was used for detection and differentiation of both species. to evaluate specificity and sensitivity of the test, a panel of different campylobacter spp. together with several intestinal bacterial pathogens was tested. the limit of...
Relaying is one of the useful techniques to enhance wireless physical-layer security. Existing literature shows that employing full-duplex relay instead of conventional half-duplex relay improves secrecy capacity and secrecy outage probability, but this is at the price of sophisticated implementation. As an alternative, two-path successive relaying has been proposed to emulate operation of full...
Super duplex stainless steel is a kind of duplex stainless steel that has pitting resistant equivalent number over than 40. Unified Numbering System (UNS) S32750 is a common super duplex stainless stee, that is mostly applied in oil and gas refinery industries, because of its proper corrosion-resistant properties . Therefore, joining of these steels by welding is very important, but the greates...
سابقه و هدف: گونههای کمپیلوباکتر عامل عمده موارد گاستروانتریت باکتریایی با عنوان کمپیلوباکتریوز در سرتاسر جهان میباشند. از تظاهرات مهم بعد از این عفونت سندرم گیلن باره و آرتریت واکنشی میباشند. علیرغم اهمیت عفونت، جداسازی این باکتریهای سخت رشد در آزمایشگاههای بالینی انجام نمیشود. هدف از این مطالعه طراحی یک محیط انتقالی تغییریافته با mCCDA و ارزیابی مدت زمان زنده ماندن باکتری، بهینهسازی...
سابقه و هدف: عفونت مجاری ادراری یکی از بیماری های شایع جوامع انسانی است. متأسفانه مصرف بی رویه آنتی بیوتیک ها موجب بروز مقاومت تدریجی در باکتری ها شده است. هدف از این مطالعه، تعیین میزان شیوع مقاومت آنتی بیوتیکی و ژن های مقاومت به تتراسیکلین در اشریشیا کلی های مولد عفونت ادراری بود. مواد و روشها: در این مطالعه توصیفی- مقطعی، 210 نمونه ادراری طی 4 ماه جمع آوری شد. با استفاده از روش انتشار...
Kraepelin was the first who recognized the phenomenon of cycling in bipolar disorder in 1913. The term rapid cycling was proposed by Dunner and Fieve in 1974. Later on, Kramlinger and Post defined ultra-rapid cycling and ultradian cycling in 1996. Frequent rapid mood switches are an inherent characteristic of bipolar disorder, and rapid cycling is included as a course specifier for bipolar diso...
We reported that d(CGAA) prefers to form a parallel duplex with homo base pair formations. To survey a possibility of longer parallel duplex, crystal structure of d(CGAAGC) has been determined. As expected, the CGAA part of the hexamer forms a parallel duplex with the corresponding part of another hexamer. The remaining G and C residues of one strand are stacked on the end of the parallel duple...
The present study investigates the failure resistance welding method of a similar and unmatched connection point in duplex stainless steel under shear stress conditions. In this study, 1Cr21Ni5Ti branded stainless steel duplex was used. Micro-hardness test, tensile test - cutting and optical metallography to describe the macrostructure and microstructure, hardness button welding and weld failur...
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