نتایج جستجو برای: Damage zone

تعداد نتایج: 334120  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پایه 1388

منطقه مورد مطالعه در شمال شمال خاور دشت لوت قرار دارد که ساختارهای اصلی آن روند شمالی – جنوبی و شمال باختری – جنوب خاوری دارند. حرکت راستگرد شمالی – جنوبی بین ایران مرکزی و افغانستان باعث فعالیت پهنه های گسلی شمالی - جنوبی و شمال باختری – جنوب خاوری در بخش خاوری ایران گردیده است. تاثیر متقابل گسلها (fault interaction) باعث ایجاد مناطق فشاری (restraining zones) در راستای پهنه های گسلی و رخنمون...

2012
David K. Hsu

As composites are being used as primary load bearing members, the increased understanding of damage tolerance of the material is becoming important. When load is applied to a structure containing a crack or damage, a small area ahead of the crack undergoes very high stress. These stresses cause further damage in this small zone. Initially this damage is at the microlevel: in isotropic materials...

Journal: :آب و توسعه پایدار 0
الهام موحد زهرا عابدی

the present study aimed at investigating and estimating the amount of damage caused by waste water pollution of water desalinators in the south pars special zone. the main reasons for conducting this study were to investigate the creation of environmental pollutants as a result of the development and expansion of different industries in the south pars zone, as well as the ecological sensitivity...

2001
Kaiwen Xia Thomas J. Ahrens

Ackermann et al. (1975) described the subsurface structure of Meteor Crater and identified a fractured rock zone extending to about 1 km deep. The depth of the fractured/damage zone can be used to extract information about the impact cratering process. We impacted rock samples (San Marcos gabbro) in the laboratory and imaged the damage structure using both dicing and tomography methods. We prop...

Journal: :کشاورزی (منتشر نمی شود) 0
سید مجتبی مجاوریان استادیار، گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه مازندران، مازندران حمید امیرنژاد استادیار، گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه مازندران، مازندران

to determine the factors affecting the acceptation of rice insurance in sari township a number of 90 farmers (45 assured and 45 not assured) were sampled. the information consisted of personal (age, size of family, activity experiment, damage experiment, and non-farm income); social (studies level, agrarian regimes, locality); and geography (farm size, distance between farm to insurance broker)...

2008
A. A. Sagüés

Deterministic forecast of corrosion damage progression in a reinforced concrete column was implemented in a one-dimensional model accounting for potential dependence of corrosion threshold, and macrocell coupling during the initiation and propagation stages. The damage projection was clearly sensitive to the choice of the activation zone size. The relative sensitivity became greater as the zone...

2009
Vladimir Lyakhovsky Yehuda Ben-Zion

[1] We discuss numerical simulations of evolving fault zone structures in a 3-D lithospheric model with a seismogenic crust governed by a damage rheology that accounts for large strain associated with permanent brittle deformation. Results for the initial propagation of an existing narrow damage zone subjected to oblique loading exhibit strong asymmetry of the evolving damage with respect to th...

2008
Sonja N. Oswalt Christopher M. Oswalt

This paper compares and contrasts hurricane-related damage recorded across the Mississippi landscape in the 2 years following Katrina with initial damage assessments based on modeled parameters by the USDA Forest Service. Logistic and multiple regressions are used to evaluate the influence of stand characteristics on tree damage probability. Specifically, this paper addresses four primary quest...

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