نتایج جستجو برای: eonomic analysis
تعداد نتایج: 2824140 فیلتر نتایج به سال:
background and aims: pelvic organ prolapse (pop) is a common condition which affects on a large proportion of women. the objective of this study was to determine the risk factors of pop in iranian women. methods: this cross-sectional study was carried out to examine the role of demographic, anthropometric and clinical characteristics in pop disease in a sample of 365 females in ilam, iran. exam...
most studies within the area of genre analysis, particularly those conducted in iran, have exclusively used text analysis. while such investigations have led to important understandings of generic features of texts, it can be argued that incorporating interview data for triangulation can lead to better understanding of generic features of texts. along this line, this paper reports the results o...
integration and coherence within a city’s physical structure have become an issue for towns and cities as theyrapidly expand, incorporate new elements, and undergo incessant changes. at present, we are facing an extensive accumulation of signs and traits in modern urban patterns; many unaccustomed to and incongruous are affecting the socio-cultural and physical characters of cities. here, we wi...
nowadays, energy plays an important role in the economic and community development of country. consequently, performance analysis of energy systems is one of the effective methods being used to prevent waste of energy resources. among the different power generation technologies, steam power plants make a significant contribution to power generation in iran, with a share of 47 % of electricity g...
seeds of 200 accessions of alfalfa (medicago sativa l.) were provided from iraniannatural resource gene bank and were sown as drilled plot using alpha designs/unreplicatedwith 2 repeated entries within all of 10 blocks under dry land farming system in agriculturalresearch center of hamadan, iran during 2009 to 2010. the data were collected and analyzedfor plant height, stem number, leaf stem ra...
torsion of many symmetric structures, which were designed based on the seismic codes, is due to their asymmetricity induced during inelastic behavior. although the structure was designed symmetrically assuming elastic based criteria, different factors such as material inconsistency in structure, construction details discrepancy and construction errors may result in asymmetric behavior in inelas...
مقدمه: با توجه به طولانی بودن مدت زمان میان جراحی کارگذاری ایمپلنت و ساخت پروتز و بارگذاری ایمپلنت، استفاده از روش هایی که بتوانند این مدت زمان را به حداقل برسانند بسیار مطلوب می باشد. لیزرهای کم توان در بسیاری از زمینه های پزشکی و دندانپزشکی به کار می روند. غیرتهاجمی بودن، کاربرد آسان و نتایج درمانی رضایت بخش از جمله دلایل محبوبیت آن ها به شمار می رود. تسریع التیام بافتی و تحریک فعالیت استئو...
تعارفات کنش های گفتاری هستند که افراد در زندگی روزمر? خود به منظور برقراری دوستی یا تداوم روابط مسالمت آمیز به کار می برند. ساز و کار تعارف مختص زبان انگلیسی یا هر زبان دیگری نیست و پدیده ای است جهانی و در همه زبانها حضور دارد. تفاوتی که از این نظر در زبانها و فرهنگ ها وجود دارد مربوط به پاسخ به این کنش گفتاری در گفتمان است. این مطالعه به بررسی تنوع پاسخ های انگلیسی و عربی به کنش گفتاری تعارف د...
explosion and fire on an offshore rig can lead to its minor or complete damage and sinking which means the loss of life or environmental pollution. hence the use of techniques such as blast wall is crucial to reduce the detrimental effects. these blast walls are designed for explosion wave of length between 0.1 to 1 of load mainly to protect the personnel and critical sections. in this research...
during the last years the total cost of lng technology has decreased significantly due to improvements of the liquefaction process. however, many liquefaction plants that are still in operation use a three-cascade refrigeration system. in this paper, an advanced exergetic analysis is applied to better understand the operation of a three-cascade refrigeration system for liquefaction of natural g...
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