نتایج جستجو برای: جرم و فنر mss

تعداد نتایج: 762802  

ژورنال: :مکانیک سازه ها و شاره ها 0
محسن سلطانی گردفرامرزی دانشجوی دکترا، دانشکده مهندسی مکانیک، دانشگاه یزد، یزد سید محمد بزرگ دانشیار، دانشکده مهندسی مکانیک، دانشگاه یزد، یزد محمد رضا ذاکرزاده استادیار، دانشکده مهندسی مکانیک ، پردیس دانشکده های فنی، دانشگاه تهران، تهران

در این مقاله ابتدا یک سیم از جنس آلیاژ حافظه دار توسط مدل برینسون مدل سازی شده است. با توجه به کارایی بالای مدل برینسون، این مدل به صورت جزئی در تمام نقاط صفحه دما-تنش مورد بررسی قرار گرفته است. در ادامه یک عملگر دارای آلیاژ حافظه دار که از ترکیب یک سیم آلیاژ حافظه دار با یک فنر خطی تشکیل شده، مدل سازی شده است. از آنجا که در بسیاری از موارد، پارامترهای مختلف عملگرهای آلیاژ حافظه دار از قبیل ضری...

2011

In this work we study the effect of some electrical prosperities on synthetic rubber reinforced with carbon black diluted in heptanes with concentrations from 0.2% gm/mole to 2.0% gm/ mole in temperatures range (100, 150, 200, 250, 300) C associated with amount weight of black carbon 5wt% added to the diluted rubber. The results of electrical properties measurement of Buna rubber reinforced wit...

2012
ROUMMEL F. MARCIA

A MATLAB implementation of the Moré-Sorensen sequential (MSS) method is presented. The MSS method computes the minimizer of a quadratic function defined by a limited-memory BFGS matrix subject to a two-norm trust-region constraint. This solver is an adaptation of the Moré-Sorensen direct method into an L-BFGS setting for large-scale optimization. The MSS method makes use of a recently proposed ...

2016
Dev M. Gossain

The Mobile Servicing System (MSS) concept is being developed as the Canadian contribution to the Space Station Program. The MSS is a major element of the servicing architecture in the Space Station Program and complements the role of U.S. developed Servicing Facility on the Station. This paper describes the servicing functions performed by MSS. These functions include servicing of attached payl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده فنی 1393

در این پایان نامه به بررسی پاسخ لرزه ای لایه های خاک تحت سربار و مدلسازی جرم و فنر پرداخته شده است. با در نظر گرفتن سربار روی لایه های خاکی ومعادلسازی سربار به یک لایه خاکی بر روی سطح زمین به عرض واحد و مدلسازی لایه ها به کمک روش جرم و فنر سعی بر آن بوده که پاسخ لرزه ای مورد تحلیل قرار گیرد. با تشکیل ماتریس سختی دینامیکی و بدون نیاز به توابع تبدیل ،در حوزه فرکانس پاسخ دینامیکی خطی زمین حل و محا...

Journal: :Pediatric exercise science 2010
Alberto Mendez-Villanueva Martin Buchheit Sami Kuitunen Tsz Kit Poon Ben Simpson Esa Peltola

The purpose of this study was to investigate the relationship between maximal sprinting (MSS) and aerobic (MAS) speeds in a cohort of highly-trained young male soccer players with the influence of body mass controlled for using allometric scaling. MSS and MAS were obtained in 14 pre-age at peak height velocity (APHV) players (12.3 ± 0.7 years), 21 circum-APHV players (14.3 ± 0.9 year) and 26 po...

Journal: :Comput. Graph. Forum 2010
Norbert Lindow Daniel Baum Steffen Prohaska Hans-Christian Hege

Molecular surfaces play an important role in studying the interactions between molecules. Visualizing the dynamic behavior of molecules is particularly interesting to gain insights into a molecular system. Only recently it has become possible to interactively visualize dynamic molecular surfaces using ray casting techniques. In this paper, we show how to further accelerate the construction and ...

2011
P W Tse X C Liu Z H Liu B Wu C F He X J Wang

Magnetostrictive sensors (MsSs) that can excite and receive guided waves are commonly used in detecting defects that may occur in cables and strands for supporting heavy structures. A conventional MsS has a hard sensing coil that is wound onto a bobbin with electric wires to generate the necessary dynamic magnetic field to excite the desired guided waves. This tailor-made hard coil is usually b...

Journal: :International journal of occupational safety and ergonomics : JOSE 2005
Derek R Smith Myoung-Ae Choe Mi Yang Jeon Young Ran Chae Gyeong Ju An Jae Sim Jeong

We investigated the epidemiology of musculoskeletal symptoms (MSS) among a complete cross-section of 330 nurses from a large Korean hospital, by means of a questionnaire survey (response rate: 97.9%). The prevalence of MSS at any body site was 93.6%, with symptoms most commonly reported at the shoulder (74.5%), lower back (72.4%), neck (62.7%), lower legs (52.1%) and hand/wrist (46.7%). Logisti...

2009
Uma Gupta Rita Kar

Effects of xylose on xylanase production by a thermophilic Bacillus sp showed diverse patterns on corn cob (CC) and wheat bran (WB) as sole carbon sources in solidstate fermentation (SSF) and submerged fermentation (SmF). Supplementation of these media with either mineral salt solution (MSS) or yeast extract peptone (YEP) also exerted variable effects. While under SSF, xylose stimulated xylanas...

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