نتایج جستجو برای: principal normal stress

تعداد نتایج: 1083280  

Journal: :تولید گیاهان زراعی 0

to determine the yield stability, adaptability and analysis of the genotype× environment interaction of virginia tobacco, 15 hybrids of tobacco including 10 iranian and 5 international hybrids were evaluated in two different experiments (water stress and normal irrigation) using a randomized complete block design (rcbd) with three replications at two locations including rasht and tirtash tobacc...

صدیق, سامان, صمدزاده, علیرضا, ضابط, محمد, قادری, محمد قادر,

The purpose of present study was identifying superior cotton varieties (Gossypiumhirsutum L.) under drought stress and normal conditions using GGEBiplot and GTBiplot. The experiment was conducted in a randomized complete block design with three replications and 14 treatments under normal and stress conditions in the research station of Birjand University in 2013-2014. Cotton genotypes were: Arm...

Journal: :Rock Mechanics and Rock Engineering 2022

Abstract This paper describes an experimental campaign where a simplified test method. The Rapid Step-Rate Test (RSRT) has been investigated in full-scale field setting. test, originally developed to assess rock stresses for pressure tunnel considerations, had earlier laboratory study demonstrated promising ability the magnitude of fracture normal stress. presented herein was therefore aimed at...

Journal: :journal of modern processes in manufacturing and production 0
javad shahbazi karami faculty of mechanical engineering, shahid rajaee teacher training university, tehran, iran gholamhasan payganeh faculty of mechanical engineering, shahid rajaee teacher training university, tehran, iran mohsen khodsetan school of mechanical engineering, college of engineering, university of tehran, tehran, iran

tube hydroforming (thf) process is used to produce the complex components from the initial cylindrical tubes. in this paper, t- shape component was formed using a tube hydroforming machine and the residual stresses of hydroformed tube was determined by hole drilling method. subsequently, the thickness distribution and residual stresses of final tube were investigated using experimental and fini...

2011
Jeannette A. E. Söderberg Ryan T. Birse Dick R. Nässel

The insulin-signaling pathway is evolutionarily conserved in animals and regulates growth, reproduction, metabolic homeostasis, stress resistance and life span. In Drosophila seven insulin-like peptides (DILP1-7) are known, some of which are produced in the brain, others in fat body or intestine. Here we show that DILP5 is expressed in principal cells of the renal tubules of Drosophila and affe...

Journal: :تولید گیاهان زراعی 0

in order to determine the best index for evaluating maize genotypes, 15 maize inbred lines were evaluated in two planting dates, 6 july to coincide heat stress with pollination time and 27 july as normal planting to avoid high temperature during pollination and grain filling period, using a randomized complete block design with three replications, in shushtar city, in 2007. result showed that i...

ژورنال: مجله دندانپزشکی 2000
دخت زراتی, سیمین , فاضل, اکبر , گرامی پناه, فریده ,

Preservation of bone-implant interface is vital for maintaining of implant treatment. There are some cases in which crown to fixture ratio is increased due to loss of residual ridge. In this condition knowledge of stresses acting over alveolar bone is important in regard to prognosis of treatment. In this study three different crown to fixture ratios evaluated under lateral forces considering s...

2003
Stephen Hickman Mark Zoback Richard Benoit

To determine factors controlling permeability variations within and adjacent to a fault-hosted geothermal reservoir at Dixie Valley, Nevada, we conducted borehole televiewer observations of wellbore failure (breakouts and cooling cracks) together with hydraulic fracturing stress measurements in six wells drilled into the Stillwater fault zone at depths of 2-3 km. Measurements in highly permeabl...

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