نتایج جستجو برای: damage index

تعداد نتایج: 613590  

Journal: :Optics letters 2012
Alfio Battiato Federico Bosia Simone Ferrari Paolo Olivero Anna Sytchkova Ettore Vittone

We present the results of variable-angle spectroscopic ellipsometry and transmittance measurements to determine the variation of the complex refractive index of ion-implanted single-crystal diamond. An increase is found in both real and imaginary parts at increasing damage densities. The index depth variation is determined in the whole wavelength range between 250 and 1690 nm. The dependence fr...

زارع حسین زاده, علی, قدرتی امیری, غلامرضا,

In this paper, a new vibration-based damage detection method for damage localization in shear frames is presented. For this purpose, a new damage index is proposed by means of static displacements estimated using only the first several mode data and Grey Relation Theory. The efficiency of the presented method has been demonstrated through studying several damage scenarios on three examples of s...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
محمد قهرمان زاده دانشیار گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تبریز قادر دشتی دانشیار گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تبریز سمیرا افراسیابی کارشناس ارشد مدیریت کشاورزی، دانشگاه تبریز جواد حسین زاد دانشیار گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تبریز باب اله حیاتی دانشیار گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تبریز

agricultural insurance is one of the most important mechanisms to providing security for investment in agricultural and natural damage reduction. one of the modern types of insurance is weather index- based insurance that developed based on climatic parameters such as rainfall and temperature. the purpose of this study is to identifying the factors affecting wheat farmer's participation on...

Journal: :journal of food biosciences and technology 2015
a. allameh m. kadivar m. shahedi

one of the most important forms of preharvest damage to wheat is caused by sunn pests. the insects insert their mouth parts into the immature grain and while injecting their saliva suck the milky juices. flour from damaged wheat results in low baking performance due to the bug proteolytic enzymes’ injected which cause the breakdown of gluten structure in the dough. in the present study three wh...

2016
Tianxin Li Minjie Zhang Ke Gu Uwizeyimana Herman John Crittenden Zhongming Lu

The inhalable particles from vehicle exhaust can cause DNA damage to exposed organisms. Research on DNA damage is primarily focused on the influence of specific pollutants on certain species or the effect of environmental pollution on human beings. To date, little research has quantitatively studied the relationship between roadside pollution and DNA damage. Based on an investigation of the roa...

Journal: :medical journal of islamic republic of iran 0
mohamad reza guity orthopaedic department of emam khomeini hospital, tehran, iran.سازمان اصلی تایید شده: بیمارستان امام خمینی تهران shaharam akhlaghpour radiologistسازمان های دیگر: رادیولوژیست reza yousefian national iranian oil hospital.سازمان اصلی تایید شده: وزارت نفت سازمان های دیگر: بیمارستان نفت

background : glenoid bone damages consisting of anterior rim erosion and bony avulsion are very important in decision making for treatment of recurrent dislocation in shoulder joint. this study was aimed to determine the prevalence of these damages in patients with anterior recurrent shoulder dislocation. methods : the study was a cross-sectional study evaluating patients with unstable shoulder...

Journal: :Advances in Civil Engineering 2023

In the paper, a simple-supported wooden beam is used as research object to identify damage of wood by finite element analysis and experimental research. First, ANSYS was establish solid model before after damage, then discrete wavelet transform performed on curvature mode coefficient difference index obtained obtaining high frequency coefficients. Then, location judged according sudden peak ind...

E. Salajegheh, H. Fathnejat, P. Torkzadeh, R. Ghiasi,

Vibration based techniques of structural damage detection using model updating method, are computationally expensive for large-scale structures. In this study, after locating precisely the eventual damage of a structure using modal strain energy based index (MSEBI), To efficiently reduce the computational cost of model updating during the optimization process of damage severity detection, the M...

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