نتایج جستجو برای: acceleration of 070 g

تعداد نتایج: 21201329  

Introduction One-dimensional site response analysis is widely performed to account for local site effects during an earthquake. Most of these approaches assume that dynamic soil properties are frequency independent. Laboratory test results as well as in-situ testing show that shear modulus and damping ratio are dependent on the frequency of loading. Although the amplification factor at ground ...

2016
R. L. S. Farias M. B. Pinto

R. L. S. Farias,1, 2, ∗ V. S. Timóteo,3, † S. S. Avancini,4, ‡ M. B. Pinto,4, § and G. Krein5, ¶ Departamento de F́ısica, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil 2 Physics Department, Kent State University, Kent, OH 44242, USA Grupo de Óptica e Modelagem Numérica GOMNI, Faculdade de Tecnologia FT, Universidade Estadual de Campinas UNICAMP, 13484-332 Limeira, SP , B...

2017
Xi Zhang Ziyang Lai Rui Xiong Zhe Li Zhimin Zhang Liang Song

Xi Zhang 1,* ID , Ziyang Lai 1, Rui Xiong 2,* ID , Zhe Li 1, Zhimin Zhang 1 and Liang Song 1 1 School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; [email protected] (Z.L.); [email protected] (Z.L.); [email protected] (Z.Z.); [email protected] (L.S.) 2 National Engineering Laboratory for Electric Vehicles, School of Mechanical Engineerin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم انسانی 1393

this studyinvestigated therelations between examinees’ academic knowledge and theirperformanceonreading section of ielts and toefl (ibt) through using generalizabilitytheory. g-theory was utilized to investigate the effects of subtest, test items, participants and academic background on the reliability of ielts and toefl (ibt) score. tosamplethe subjectsofthissurvey,a placement testwasadministe...

Journal: :advances in railway engineering,an international journal 2014
amin miri saeeid mohammadzadeh

car body acceleration is an important factor affecting track safety and ride comfort, which are two primary aspects of railway systems. though track level is an important source of wagon body acceleration, no quantitative relation between them is available and the aim of this paper is to propose a method to address this issue. to do so, car body acceleration is determined using a 10 dof simulat...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم پایه 1393

فرض کنیم g یک گروه باشد و aut(g) گروه خودریختی های آن باشد.گروه gرا a(g)-گروه گوییم هرگاه مجموعه ی خودریختی های جابه جاشونده ی آن، a(g)، زیرگروهی از aut(g) باشد. گروه g راac گروه نامیم هرگاه مرکزی ساز همه ی اعضای غیر مرکزی گروه g آبلی باشد. در این پایان نامه نتایج زیر مورد بررسی قرار می گیرد: (1) مشخص نمودن کمترین مرتبه ی یک p-گروه نا a(g) برای هر عدد اول p. (2) تعیین کوچک ترین مرتبه ی یک نا...

Journal: :The Astrophysical Journal 2021

The microquasar MAXI J\(1820+070\) went into outburst from mid-March until mid-July 2018 with several faint rebrightenings afterwards. With a peak flux of approximately 4 Crab in the \(20-50\) keV, energy range source was monitored across electromagnetic spectrum detections radio to hard X-ray frequencies. Using these multi-wavelength observations, we analyzed quasi-simultaneous observations 12...

ژورنال: پژوهش در پزشکی 2017

Abstract Background and Aim: In recent years, Mesenchymal stem cell functions have been at the center of attention of researchers. Evidence shows that Mesenchymal stem cells act as paracrine manner and thus, biological agents such as exosomes and soluble factors are present in the supernatant that can act as same as Mesenchymal stem cells. Therefore, isolating exosomes from mesenchymal stem ce...

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