نتایج جستجو برای: retaining wals
تعداد نتایج: 16876 فیلتر نتایج به سال:
This paper intends to present an approach the problem of optimal cross-section topology a retaining wall. We use Solid Isotropic Material with Penalization (SIMP) method solve this problem. An isotropic solid is divided into n quadrilateral finite elements, and each such element e associated design variable xe which might be regarded as material density. The notion virtual Young's modulus intro...
For economic and policy analyses requiring a summary health outcome measure that integrates quantity-of-life and quality-oflife impacts, the quality-adjusted life-year (QALY) has been widely recognized and endorsed [1–3]. The US Panel on Cost-Effectiveness in Health and Medicine recommended the QALY for “reference case” analyses [2]. The UK National Institute for Health and Clinical Excellence ...
Structures placed on hillsides often present a number of challenges and a limited number of economical choices for site design. An option sometimes employed is to use the building frame as a retaining element, comprising a Rigidly Framed Earth Retaining Structure (RFERS). The relationship between temperature and earth pressure acting on RFERS, is explored in this monograph through a 4.5 year mo...
پژوهش حاضر با بکارگیری روشهای میانگینگیری مدل بیزینی[1] (BMA) و حداقل مربعات متوسط وزنی[2] (WALS) بعنوان روشهای مرسوم اقتصادسنجی بیزینی[3]، اثر 18 متغیر اقتصادی بر ضریب جینی طی دورهی زمانی 89-1355 در اقتصاد ایران مورد بررسی قرار میدهد. نتایج حاصل از دو روش نشان میدهد که متغیر نرخ رشد تولید ناخالص داخلی با علامت مثبت مهمترین متغیر تأثیرگذار بر ضریب جینی در اقتصاد ایران میباشد بطوری که ا...
In both these cases the nature of the foreign body in the palate defied diagnosis by either the parents or clinicians. Although this led to considerable delay in presentation, removal was simple and the palate left unscathed. The risks of dislodgement and aspiration of the plastic screwhead cap into the tracheobronchial tree, however, rendered this a potentially serious condition. Because screw...
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