نتایج جستجو برای: reinforcement

تعداد نتایج: 40552  

Journal: :journal of seismology and earthquake engineering 0
p. sunitha indian institute of technology madras c.v.r. murty indian institute of technology madras rupen goswami indian institute of technology madras

methods are proposed to develop idealized moment-curvature response curves of slender rectangular rc wall sections with uniformly distributed longitudinal reinforcement, using limit states, namely, cracking of concrete in tension, tensile yielding of reinforcement layers, and compression failure of concrete. it is recommended that tensile yielding of an inner layer of reinforcement is considere...

Journal: :journal of artificial intelligence in electrical engineering 2014
mohammad esmaeil akbari noradin ghadimi

in this paper an adaptive pid controller for wind energy conversion systems (wecs) has been developed. theadaptation technique applied to this controller is based on reinforcement learning (rl) theory. nonlinearcharacteristics of wind variations as plant input, wind turbine structure and generator operational behaviordemand for high quality adaptive controller to ensure both robust stability an...

Journal: :international journal of high risk behaviors and addiction 0
marjan alemikhah islamic azad university, torbat-e-jam branch, torbat-e-jam, ir iran farhad faridhosseini psychiatry and behavioral sciences research center, ibn-e-sina hospital, mashhad university of medical sciences, mashhad, ir iran; psychiatry and behavioral sciences research center, ibn-e-sina hospital, mashhad university of medical sciences, mashhad, ir iran. tel: +98-9155115502, fax: +98-5137112723 hassan kordi physical education and sport science department, ferdowsi university, mashhad, ir iran morad rasouli-azad shahid beheshti university of medical science and health services, tehran, ir iran najmeh shahini psychiatry and behavioral sciences research center, student research committee, ibn-e-sina hospital, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran

conclusions the personality patterns of patients dependent on methamphetamines were different from the controls. these people have a high sensitivity to punishment cues, such as being compared in social conditions and a tendency for reinforcement and reward, because of their higher sensitivity in the behavioral inhibition and activation systems. results the methamphetamine dependent group had a...

Journal: :journal of computer and robotics 0
maziar ahmad sharbafi university of tehran caro lucas university of tehran aida mohammadinejad khaje nasir toosi university

in this paper, an intelligent controller is applied to control omni-directional robots motion. first, the dynamics of the three wheel robots, as a nonlinear plant with considerable uncertainties, is identified using an efficient algorithm of training, named lolimot. then, an intelligent controller based on brain emotional learning algorithm is applied to the identified model. this emotional lea...

Journal: :journal of structural engineering and geo-techniques 2015
alireza tabarsa seyedjassem hosseini

in this study the performance of clay nano-particles on the soil reinforced with polypropylene fibers (pp-fiber) has been investigated. also a series of investigations concerning the effect of random orientation of fibers on the engineering behaviour of soil were conducted. soil mixtures were modified with varying percentages of nanoclay and fibers. unconfined compressive strength (ucs), compac...

برهانی, غلامحسین, ریزانه, شهرام, طاووسی, مجید,

Investigating the effect of Al2O3-TiB2/Fe complex reinforcement (CCMR) on the mechanical properties of aluminum composites was the goal of this study. For this purpose, the Al2O3-TiB2/Fe reinforcement powders were synthesized during milling and subsequent annealing. Different volume percentages of the produced reinforcement powders (1.25, 2.5 and 5 vol.%) were added to aluminum matrix, mil...

Al7075 alloy reinforced with h-Boron Nitrate (BN) composites were processed by stir casting technique. The produced composite was subjected to microstructural studies using OLYMPUS -BX51M, tensile, hardness, density and wear tests. Tensile strength and hardness were found to increase by 12.8% and 20% respectively due to increased dislocation density with the addition of reinforcement. Microstru...

This paper presents the results of a series of small-scale model tests and numerical analyses conducted on circular and ring model footings located near geogrid reinforced sand slopes. Layers of geogrid were used as reinforcement. For numerical analyses Finite Element Method (FEM) was used. The effects of reinforcement depth, size, number of layers, and the horizontal distance between reinforce...

Journal: :مدیریت بازرگانی 0
مرتضی ملکی استادیار گروه مدیریت بازرگانی، دانشگاه سمنان، ایران نسرین حاجی حسنی کارشناس ارشد mba دانشگاه سمنان، ایران

recognizing the importance of the advertising in brand reinforcement and brand credibility, the authors conduct the present research for understanding the customers’ emotional responses toward the brand reinforcement and credibility and its effect on the perceived values and behavioral intentions. hypotheses were tested on data collected from 467 customers of mellat bank in semnan province in i...

Journal: :international journal of civil engineering 0
a.a. maghsoudi h. akbarzadeh bengar

limit to the tension reinforcement ratio ( ρ) in flexural high strength reinforced concrete (hsrc) members is based on the requirement that tension failure as sufficient rotation capacity are ensured at ultimate limit state. however, the provisions for the total amount of longitudinal reinforcement ratio ( ρ and ρ’) are not associated with any rational derivation. in this paper, a quantitative ...

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