نتایج جستجو برای: static strain aging

تعداد نتایج: 425742  

Journal: :international journal of civil engineering 0
s.a. sadrnejad m. labibzadeh

analysis and prediction of structural response to static or dynamic loading requires prediction of concrete response tovariable load histories. the constitutive equations for the mechanical behavior of concrete capable of seeing damage effects or crack growth procedure under loading/unloading/reloading was developed upon micro-plane framework. the proposed damage formulation has been built on t...

Journal: :Biology letters 2011
Carl D Soulsbury Rauno V Alatalo Christophe Lebigre Kaisa Rokka Heli Siitari

Dispersal is an important mechanism used to avoid inbreeding. However, dispersal may only be effective for part of an individual's lifespan since, post-dispersal individuals that breed over multiple reproductive events may risk mating with kin of the philopatric sex as they age. We tested this hypothesis in black grouse Tetrao tetrix, and show that yearling females never mated with close relati...

2008
N. DAUCHEZ S. SAHRAOUI

This paper is an overview of quasistatic measurement technique used to determine mechanical properties of sound absorbing materials. Experimental context and behaviour of polymer foam and rock wool are summarized. Concerning parameters are: static and dynamic strains, dynamic effects such as skeleton resonance and coupling with saturating fluid. Material anisotropy and frequency dependance of c...

Journal: :Transactions of the Japan Institute of Metals 1982

Journal: :International Journal of Distributed Sensor Networks 2017

Journal: :Metals 2022

In this article, a mathematical model of the wire’s average temperature change in process multiple drawing on high-speed straight-line machines has been developed. The calculation results showed that wire during at speed up to 45 m/s could reach 400 °C. Deformation heating does not exceed 60 °C, and due sliding friction can 300 depending coefficient, which ranges from 0.05 0.15. strain rates un...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده کشاورزی 1391

به منظور بررسی تلفیق باکتری های محرک رشد و کود شیمیایی بر عملکرد و کیفیت شلغم علوفه ای، آزمایشی در مزرعه پژوهشی موسسه تحقیقات برنج کشور (رشت) در قالب طرح بلوک های کامل تصادفی در سال زراعی90- 1389 انجام شد. تیمارهای مورد بررسی در این تحقیق شامل تیمار بدون کود و بدون تلقیح (شاهد)، استفاده از کود کامل شیمیائی و بدون تلقیح، تلقیح با azotobacter chroococcum strain 41 و بدون کود نیتروژن، تلقیح با a. ...

Journal: :Frontiers in bioscience : a journal and virtual library 2003
Jeremy J Mao Xin Wang Mark P Mooney Ross A Kopher James A Nudera

Static forces have been used for more than a century to modulate osteogenesis of craniofacial sutures in not only laboratory research, but also clinical practice. Whether cyclic forces more effectively stimulate sutural osteogenesis than static forces is unknown. Here, the premaxillomaxillary sutures of growing rabbits received in vivo exogenous static forces with peak magnitude of 2 Newtons, o...

2008
S. A. Jang

Structural health monitoring (SHM) is an effective way to maintain the civil infrastructure against unexpected collapse. In recent years, many researchers have developed numerous damage detection methods to identify possible damage locations. The damage locating vector (DLV) method proposed by Bernal has received significant attention because this method was verified by a series of proof-of-con...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید