نتایج جستجو برای: tensilecompressive yield stresses

تعداد نتایج: 232264  

2018
Gui-Long Liu Shi-Hong Huang Che-Si Shi Bin Zeng Ke-Shi Zhang Xian-Ci Zhong

Using copper thin-walled tubular specimens, the subsequent yield surfaces under pre-tension, pre-torsion and pre-combined tension-torsion are measured, where the single-sample and multi-sample methods are applied respectively to determine the yield stresses at specified offset strain. The rule and characteristics of the evolution of the subsequent yield surface are investigated. Under the condi...

2015
Garry Rosewarne David Bonnett Greg Rebetzke Paul Lonergan Philip J. Larkin Bertrand Hirel

Chromosomal translocations in wheat derived from alien species are a valuable source of genetic diversity that have provided increases in resistance to various diseases and improved tolerance to abiotic stresses in wheat. These alien genomic segments can also affect multiple traits, with a concomitant ability to alter yield potential in either a positive or negative fashion. The aim of this wor...

Journal: :Molecules 2018
Vicente Martinez Manuel Nieves-Cordones Maria Lopez-Delacalle Reyes Rodenas Teresa C Mestre Francisco Garcia-Sanchez Francisco Rubio Pedro A Nortes Ron Mittler Rosa M Rivero

Abiotic stresses such as drought, heat or salinity are major causes of yield loss worldwide. Recent studies have revealed that the acclimation of plants to a combination of different environmental stresses is unique and therefore cannot be directly deduced from studying the response of plants to each of the different stresses applied individually. The efficient detoxification of reactive oxygen...

Ali Asghar Bagheri, Sara Saadatmand Taher Nejadsatari Vahid Niknam Valiollah Babaeizad

Abiotic stresses including salinity are the major limiting factors of growth and crop production worldwide. Microbial endophytes as the most important soil microorganisms, by modifying plants at genetical, physiological and ecological levels increase their yield per area unit and provide the possibility of crop production in saline and arid soils or climates with biotic and abiotic stresses. Th...

امام, یحیی , برزگر, محسن , بلوچی, حمیدرضا , مدرس ثانوی, سید علی محمد ,

Water deficit, ultraviolet radiation and CO2 concentration enhancement are three environmental stresses that affect nutrition of human in future. This research was conducted in the Research Greenhouse of Faculty of Agriculture, Tarbiat Modares University in 2006, in order to study leaf qualitative traits of durum wheat under different levels of carbon dioxide (400 and 900 ppm), ultraviolet radi...

A Ghorbanpour Arani, A Jafarzadeh Jazi M Abdollahian M Mohammadimehr M.R Mozdianfard S Amir

This article presents an exact solution for an axisymmetric functionally graded piezoelectric (FGP) rotating disk with constant thickness subjected to an electric field and thermal gradient. All mechanical, thermal and piezoelectric properties except for Poisson’s ratio are taken in the form of power functions in radial direction. After solving the heat transfer equation, first a symmetric dist...

ژورنال: علوم آب و خاک 2008
امام, یحیی , برزگر, محسن , بلوچی, حمیدرضا , مدرس ثانوی, سید علی محمد ,

Water deficit, ultraviolet radiation and CO2 concentration enhancement are three environmental stresses that affect nutrition of human in future. This research was conducted in the Research Greenhouse of Faculty of Agriculture, Tarbiat Modares University in 2006, in order to study leaf qualitative traits of durum wheat under different levels of carbon dioxide (400 and 900 ppm), ultraviolet radi...

2015
Naser A. Anjum

Being a prime source of food, agriculture sustains almost all life-forms on the Earth. However, apart from natural calamities, a range of man-made activities are causing significant increase in environmental stresses for plant growth. Adverse conditions, in turn, restrict crop plants to reach their full genetic potential of producing high yield (Anjum et al., 2014). Also, agriculture is under p...

Journal: :international journal of advanced biological and biomedical research 2013
ali asghar bagheri sara saadatmand vahid niknam taher nejadsatari valiollah babaeizad

abiotic stresses including salinity are the major limiting factors of growth and crop production worldwide. microbial endophytes as the most important soil microorganisms, by modifying plants at genetical, physiological and ecological levels increase their yield per area unit and provide the possibility of crop production in saline and arid soils or climates with biotic and abiotic stresses. th...

2003
V. Vitek M. Mrovec J. L. Bassani

The Schmid law, which is accurate for face-centered-cubic (fcc) metals, assumes that only the shear stress acting in the slip plane in the slip direction controls the plastic deformation. Hence, it is implicitly assumed that the critical resolved shear stress (CRSS) for the slip is not affected by any other components of the applied stress tensor. This rule is almost ubiquitously utilized in la...

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