نتایج جستجو برای: نوار ابررسانای bi 2223ag

تعداد نتایج: 49625  

2014
Young Bae Jun Sun Shin Ahn Asghar Khan

A generalization of an (∈, ∈ ∨ q)-fuzzy bi-filter (resp. (∈, ∈ ∨ q)fuzzy bi-filter) of an ordered semigroup is discussed. Characterizations of an (∈, ∈ ∨ qk)-fuzzy bi-filter and an (∈, ∈ ∨ qk)-fuzzy bi-filter are provided. Relations between fuzzy bi-filters and (∈, ∈ ∨ qk)-fuzzy bifilters (resp. (∈, ∈ ∨ qk)-fuzzy bi-filters) are described. Conditions for an (∈, ∈∨ qk)-fuzzy bi-filter (resp. (∈,...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1377

استفاده از کدینگ روش موثری برای بهبود عملکرد کیفی یک سیستم مخابراتی است . لیکن این بهبود در ازاء افزایش پیچیدگی و کاهش نرخ ارسال صورت می پذیرد. از طرفی امروزه در بسیاری از سیستمهای مخابراتی، بالا بردن گذردهی سیستم با حفظ عملکرد کیفی مناسب آن، مورد توجه قرار دارد. بنابراین استفاده از مدولاسیون های کد شده، به عنوان یک روش متداول برای افزایش نرخ ارسال معرفی شده است . بدین منظور استفاده از مدولاسیو...

ژورنال: :به نژادی گیاهان زراعی و باغی 2015
علی رضا پورمحمد مجید شکرپور عزت اله اسفندیاری

به منظور بررسی تنوع ژنتیکی 48 ژنوتیپ گندم، آزمایشی با نشانگرهای rapd در آزمایشگاه گروه زراعت و اصلاح نباتات دانشگاه محقق اردبیلی در سال 1391 اجرا شد. 10 آغازگر از 70 آغازگر ارزیابی شده، الگوهای نواربندی مناسب تولید کردند. این آغازگرها در مجموع 73 نوار چندشکل با میانگین 3/7 نوار به ازای هر آغازگر تولید کردند. تعداد نوار به ازای هر آغازگر از 5 نوار برای آغازگر 55 تا 11 نوار برای آغازگر 59 متغیر ب...

2010
Takehisa Hirayama Yoshikazu Nakamura Yasuhiro Yoshii Ken Ikeda

OBJECTIVE Little is known about recurrent risk profile of brain infarct (BI) in Japan. The study aimed to clarify clinicoradiological features of recurrent BI patients. METHODS 374 consecutive BI patients (231 men and 143 women) were admitted to our department between 2007 and 2008. Recurrent BI was defined as a prior history of BI. Cardiovascular disease (CVD) risk profile, stroke mechanism ...

2017
Rong Gao Wei Gao Gang Xu Jie Xu Hao Ren

AIM To investigate the effect of a single amino acid mutation in human class B scavenger receptor I (SR-BI) on the infectivity of cell culture-derived hepatitis C virus (HCVcc) in SR-BI knock-down Huh7-siSR-BI cells. METHODS Site-directed mutagenesis was used to construct the SR-BI S112F mutation, and the mutation was confirmed by nucleotide sequencing. SR-BI knock-down Huh7-siSR-BI cells wer...

2017
Fengjiang Wang Ying Huang Zhijie Zhang Chao Yan

Sn-Bi solder with different Bi content can realize a low-to-medium-to-high soldering process. To obtain the effect of Bi content in Sn-Bi solder on the microstructure of solder, interfacial behaviors in solder joints with Cu and the joints strength, five Sn-Bi solders including Sn-5Bi and Sn-15Bi solid solution, Sn-30Bi and Sn-45Bi hypoeutectic and Sn-58Bi eutectic were selected in this work. T...

1997
Sugath Warnakulasuriya Timothy Mark Pinkston

Deadlock-free routing algorithms have been developed recently without fully understanding the frequency and characteristics of deadlocks. Using a simulator capable of true deadlock detection, we measure a network’s susceptibility to deadlock due to various design parameters. The effects of bidirectionality, routing adaptivity, virtual channels, buffer size and node degree on deadlock formation ...

2001
Huijie Yang Fangcui Zhao Yizhong Zhuo Xizhen Wu Institute of Physics Hebei University of Technology Tianjin China China Institute of Atomic Energy Beijing China

1 Analysis of DNA Chains by Means of Factorial Moments Huijie Yang Fangcui Zhao Physics Institute, Hebei University of Technology, Tianjin 300130, China Yizhong Zhuo Xizhen Wu China Institute of Atomic Energy, Beijing 102413, P.O.X 275(18), China Abstract By means of the concept of factorial moments we examine DNA sequences from yeast to distinguish coding and non-coding regions. It is found th...

2006
Jorge Marques Pelizzoni Maria Das Gracas Volpe Nunes

In spite of its potential for bidirectionality, Extensible Dependency Grammar (XDG) has so far been used almost exclusively for parsing. This paper represents one of the first steps towards an XDG-based integrated generation architecture by tackling what is arguably the most basic among generation tasks: lexicalization. Herein we present a constraint-based account of disjunction in lexicalizati...

2000
Alicia Ageno Horacio Rodríguez

A method for stochastically modeling bidirectionality in chart parsing is presented. A bidirectional parser, which starts analysis from certain dynamically determined positions of the sentence (the islands), has been built. This island-driven parser uses the stochastic model to guide the recognition process. The system has been trained and tested over two wide-coverage corpus: Spanish Lexesp an...

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