نتایج جستجو برای: maximum stress

تعداد نتایج: 721423  

Journal: :به زراعی کشاورزی 0
مریم سلطانیان دانشجوی کارشناسی ارشد، گروه زراعت، دانشکدة کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران علی تدین دانشیار گروه زراعت، دانشکدة کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران سیف اله فلاح دانشیار گروه زراعت، دانشکدة کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران

to evaluate the effect of arbuscular mycorrhizal fungi under water deficit stress on linseed, a field experiment was conducted as split-plot in rcbd design with three replications at the research station of faculty of agriculture at shahrekord university in 2013. water deficit stress at four levels of no stress, mild, medium and severe stress as main factor and inoculation with glomus intraradi...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2003
Kyoko Ohashi Luís A Nunes Amaral Benjamin H Natelson Yoshiharu Yamamoto

We generalize the wavelet transform modulus maxima approach in order to analyze positive and negative changes separately and show different singularity spectra depending on the direction of changes in (i) human heartbeat interval data during sympathetic blockade, (ii) time series of daytime human physical activity of healthy individuals (but not of patients with debilitating fatigue), and (iii)...

2013
Keith B. Hall Richard Sproat

We explore a model of stress prediction in Russian using a combination of local contextual features and linguisticallymotivated features associated with the word’s stem and suffix. We frame this as a ranking problem, where the objective is to rank the pronunciation with the correct stress above those with incorrect stress. We train our models using a simple Maximum Entropy ranking framework all...

Journal: :journal of dentistry, tehran university of medical sciences 0
simindokht zarrati mehran bahrami fatemeh heidari jamal kashani

objectives : this finite element method study aimed to compare the amount of stress on an isolated mandibular second premolar in two conventional reciprocal parallel interface designs of removable partial dentures (rpds) and the same rpd abutment tooth (not isolated). materials and methods: a kennedy class 1, modification 1 rpd framework was simulated on a 3d model of mandible with three differ...

Journal: :علوم باغبانی 0
جلال برادران مطیع محسن شاکری

conditional monitoring is prerequisite to prevent severe damage or falling down the trees. problems such as trunk decays, reduces trees resistance against wind and floods. in this study, a mathematical modeling technique is being selected to determine the trees strength against such events. finally, an applicable model for safety factor was created by having numeral (dimensions of crown and tru...

2016
Yu Wang Qingsong Wang Haodong Chen Jinhua Sun Linghui He

This paper explores the fracture process based on finite element simulation. Both probabilistic and deterministic methods are employed to model crack initiation, and several commonly used criteria are utilized to predict crack growth. It is concluded that the criteria of maximum tensile stress, maximum normal stress, and maximum Mises stress, as well as the Coulomb-Mohr criterion are able to pr...

Journal: :international journal of civil engineering 0
a. hassanipour no. 26, west arghavan ave., north dibaji str., farmanieh , tehran, iran a. shafiee no. 26, west arghavan ave., north dibaji str., farmanieh , tehran, iran m.k. jafari no. 26, west arghavan ave., north dibaji str., farmanieh , tehran, iran

shear modulus and damping ratio are important input parameters in dynamic analysis. a series of resonant column tests was carried out on pure clays and sand-clay mixtures prepared at different densities to investigate the effects of aggregate content, confining stress, void ratio and clay plasticity on the maximum shear modulus and minimum damping ratio. test results revealed an increase in the...

Journal: :تولید گیاهان زراعی 0

in order to determine the effects of zinc foliar application on yield and its components single cross 704 under water stress condition, experiment was carried out at agricultural research center of varamin, in southeast of tehran, during 2007-2008. field experiment was conducted in split plot design based on randomized completely block at three replications. main plots included water stress at ...

Journal: :Transactions of the Japan Society of Mechanical Engineers 1969

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