نتایج جستجو برای: elasticplastic analysis

تعداد نتایج: 2824144  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی 1392

the main purpose of the present study was to investigate the relationship between listening proficiency and metacognitive listening strategies awareness among low, mid, and highly self-regulated students. three hundred and seventy one efl students participated in this study (all grade 3 and 4 high-school students who were studying in khansar in academic year 1391-92). to gather the data, three ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1393

asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...

In order to evaluate the genetic variation in Iranian summer savory accessions, different accessions were analyzed using multivariate and univariate analysis. Results indicated that there were significant differences in some traits. The mean comparison analysis using least significant difference (LSD) test revealed significant differences among the accessions understudy. In this regard, the hig...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

the importance of writing as a complex skill in applied linguistics has drawn the attention of many researchers to evaluate textbooks in order to help learners gain self-sufficiency and autonomy in the field of language use and communication. investigations have shown that developments in textbooks evaluation can promote the quality of pedagogies and consequently the learning. this study attemp...

Journal: :معماری و شهرسازی آرمان شهر 0
shima dadfar master of urban & regional planning, faculty of art & artitecture, islamic azad university, tehran central university, tehran central branch, tehran, iran. naser azimi assistent professor of urban planning, faculty of art & artitecture, islamic azad university, tehran central branch, tehran, iran. hasan ahmadi assistent professor of urban & regional planning, faculty of art & artitecture, university of guilan, guilan, iran.

one priority of planning at the regional level is to recognize the system of residence and particularly its urban system. one of the features of urban system in each area or country is the way of population distribution between the cities of these areas which is called city distribution size. in functional analysis of mazandaran province 41 development indexes of educational, cultural, social, ...

Journal: :civil engineering infrastructures journal 0
seyed mehdi zahrai associate professor, center of excellence for engineering and management of civil infrastructures, school of civil engineering, college of engineering, university of tehran, p.o.box: 11155-4563, tehran, iran. alireza ezoddin ph.d. student, faculty of civil engineering, university of semnan, semnan, iran.

progressive collapse is a chain reaction of failures propagating throughout a portion of the structure disproportionate to the original local failure occurring when a sudden loss of a critical load‐bearing element initiates a structural element failure, eventually resulting in partial or full collapse of the structure. both general services administration (gsa) and united states department of d...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم پایه 1390

بررسی وجود و چندگانگی جوابهای معادلات دیفرانسیل به ویژه با شرایط مرزی اغلب بسی دشوار بوده و همراه با گام های ملالت آور می باشد بطوریکه همواره نیاز به پیش شرط هایی می باشد که معادلات دیفرانسیل با شرایط مرزی مورد نظر باید داشته باشد. بنابراین اثبات آنالیزی وجود و چندگانگی جوابهای مسائل مقدار مرزی غیر خطی اغلب غیر ممکن می باشد. روشهای تقریبی- تحلیلی یا روشهای عددی صرفاً برای بدست آوردن جواب موجود ...

Journal: :gas processing 0
mohammad-hossein hamedi kntoosi university of technology, tehran, iran, reza shirmohammadi south tehran branch, islamic azad university, tehran, iran bahram ghorbani kntoosi university of technology, tehran, iran, soheil sheikhi kntoosi university of technology, tehran, iran,

advanced exergy analysis is a tool to split the exergy destruction of the system to achieve a better perspective about the potentials of a system for improvements. in addition, the component interactions and their exergy destruction dependency with the other equipment are investigated through the advanced exergy analysis. for this purpose, it divides the exergy destruction calculated by convent...

Journal: :the international journal of humanities 2003
ferdows aghagolzadeh

this paper, largely motivated by hoey (2001), revisits the issue of written discourse analysis and, in particular, the problem-solution pattern. much discussion embarrasses the way in which texts are pro-duced and understood. the different functional approaches include halliday and hasan’s approach, van dijk’s process-oriented approach, the procedural approach of de beaugrande and dressler, and...

Journal: :international journal of industrial mathematics 0
m. ‎jahantighi department of mathematics‎, ‎islamic azad ‎‎university‎, ‎zahedan branch‎, ‎zahedan‎, ‎iran.‎ z. ‎moghaddas‎ department of electrical‎, ‎computer and biomedical engineering‎, ‎‎‎islamic azad university‎, ‎qazvin branch‎, ‎qazvin‎, ‎iran. m. ‎vaez-‎ghasemi‎ department of mathematics‎, ‎islamic azad‎‎ university‎, ‎rasht ‎b‎ranch‎, ‎rasht‎, ‎iran.‎

‎in this paper allocating a fixed resource for producing ‎finite projects in order to obtaining a desired level of‎ ‎efficiency will be discussed‎. ‎note that it is assumed that a ‎vector of limited sources is at hand‎. ‎this vector of resources can‎ ‎be contained human resource‎, ‎budget‎, ‎equipment‎, ‎and facilities‎. ‎in ‎any firm there exist different suggestions from subunits for ‎running...

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