نتایج جستجو برای: breakdown of time unity

تعداد نتایج: 21270075  

Journal: : 2021

Mushroom mesa structure for InAlAs/InGaAs avalanche photodiodes (APD) was proposed and investigated. APD heterostructrures were grown by molecular-beam epitaxy. Fabricated APDs with sensitive area diameter of about 30 micron passivated SiN deposition demonstrate breakdown voltage Vbr ~ 70-80 V. At applied bias 0.9 the dark current 75-200 nA. The single-mode coupled responsivity at a gain unity ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1392

abstract the present study deals with a comparison between reactive and pre-emptive focus-on-form in terms of application and efficiency. it was conducted in an intermediate english class in shahroud. 15 male learners participated in this research and their age ranged from 18 to 25. a course book, new interchange 3, and a complementary book were used. every session the learners gave lectures o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1393

due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...

2007
Reinhard SCHERTZ Reinhard Schertz

In the p-th cyclotomic field Qpn , p a prime number, n ∈ N, the prime p is totally ramified and the only ideal above p is generated by ωn = ζpn − 1, with the primitive p-th root of unity ζpn = e 2πi pn . Moreover these numbers represent a norm coherent set, i.e. NQpn+1/Qpn(ωn+1) = ωn. It is the aim of this article to establish a similar result for the ray class field Kpn of conductor p over an ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1381

‏‎the community dynamics of aquatic coleoptera(insecta)in one of the spring-stream habitats of bammo national park in fars province called cheshmeh-ye-ghanbari is studied as a pilot project and model for acquaintance with and furthering the biodiversity studies on fauna of iran. sixteen species-populations out of nineteen of this community were already identified for their taxonomy and for thei...

Journal: :تحقیقات کتابداری و اطلاع رسانی دانشگاهی 0
نصرت ریاحی نیا استاد گروه علم اطلاعات و دانش شناسی دانشگاه خوارزمی ولی الله فرزاد استادیار گروه روانشناسی تربیتی دانشگاه خوارزمی نسرین حاصلی کارشناس ارشد گروه روانشناسی تربیتی دانشگاه خوارزمی مریم امامی کارشناس ارشد گروه علم اطلاعات و دانش شناسی دانشگاه خوارزمی

objective: to compare the effectiveness of bibliotherapy and cognitive behavioral therapy on depression of students with emotional breakdown. method: this is a quasi-experimental pretest-posttest against a control group. the population includes all referred students to kharazmi university counselling center; 20 samples were selected using a convenience sampling method.  findings: the results co...

Journal: :IACR Cryptology ePrint Archive 2017
Martin R. Albrecht Amit Deo

We present a reduction from the module learning with errors problem (MLWE) in dimension d and with modulus q to the ring learning with errors problem (RLWE) with modulus q. Our reduction increases the LWE error rate α by a quadratic factor in the ring dimension n and a square root in the module rank d for power-of-two cyclotomics. Since, on the other hand, MLWE is at least as hard as RLWE, we c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده مدیریت و اقتصاد 1391

abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...

2011
David R. Wilkins

7 Trigonometric Identities, Complex Exponentials and Periodic Sequences 26 7.1 Basic Trigonometric Identities . . . . . . . . . . . . . . . . . . 26 7.2 Basic Trigonometric Integrals . . . . . . . . . . . . . . . . . . 28 7.3 Basic Properties of Complex Numbers . . . . . . . . . . . . . 29 7.4 Complex Numbers and Trigonometrical Identities . . . . . . . 31 7.5 The Exponential of a Complex Numbe...

Journal: :Journal of Physics: Conference Series 2008

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید