نتایج جستجو برای: data collected for 133 indices

تعداد نتایج: 10948569  

Journal: :desert 2013
r. zarei m. sarajian s. bazgeer

drought is a major environmental disaster in many parts of the world. knowledge about the timing, severity and extentof drought can aid planning and decision-making. drought indices derived from in-situ meteorological data have coarsespatial and temporal resolutions, thus, obtaining a real-time drought condition over a large area is difficult. this studyused advanced very high resolution radiom...

ژورنال: پژوهش در پزشکی 2014
اجتهد, هانیه‌السادات, اصغری, گلاله, عزیزی, فریدون, میرزایی, سحر, میرمیران, پروین, نورمحمدی, مهدیه,

Abstract Background: Regarding to the impact of childhood and adolescence obesity on incidence of most of chronic adulthood diseases, determination of the predictors of obesity can play an important role in human health. Therefore, the objective of the present study was to compare body mass index (BMI), waist circumference (WC), waist to hip ratio (WHR), waist to height ratio (WHtR) and skinfol...

This research has been done in order to study economic aspects of technological changes in Horizontal Drilling methods especially MRC method in drilling for oil. In order to identify and evaluate related variables in both technological changes and economic indices, we used Vensim software to treat data collected during the time period of 2013 to 2017, in order to capture system dynamics. Data w...

Journal: :مدیریت فناوری اطلاعات 0
منوچهر انصاری دانشیار گروه mba، دانشکدۀ مدیریت دانشگاه تهران، تهران، ایران علی حیدری استایار گروه mba، دانشکدۀ مدیریت دانشگاه تهران، تهران، ایران علی ستاره گوران اباد کارشناس‎ارشد mba، دانشکدۀ مدیریت دانشگاه تهران، تهران، ایران

the choice of which products to stock among numerous competing products and how much space to allocate to those products are central decisions for retailers. this study aimed to apply data mining approach so that, we got needed information from large datasets of sale transactions to find the relations between products and to make product assortments. thus, we represented a model for product ass...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

ژورنال: یافته 2020

Background: Keratoconus is a common complication among corneal defects. As a result of expeditious and extensive progress of medical science in recent decades, corneal ring implantation has turned into a successful surgical procedure to correct the vision of Keratoconus patients; however, selecting the right patient is essential in the success of the operation. The prediction of corneal conditi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده اقتصاد و علوم اجتماعی 1389

چکیده: پژوهش حاضر به بررسی تطبیقی اعتماد اجتماعی در بین دبیران زن و مرد مقطع راهنمایی شهر ایلام می پردازد. امروزه در جوامع شاهد گسترش ارتباطات هستیم و با توجه به این که دامنه کنش های اجتماعی از حد روابط با آشنایان و دوستان فراتر رفته و به تعامل با کنشگران غربیه و نا آشنا گسترش یافته است، لزوم وجود اعتماد، بیش از پیش احساس می شود. اما با توجه به نقش دبیران در نهادهای آموزشی، در انتقال ارزش ها و...

2015
Zhao Xu Xiaopeng Xia Xiangnan Liu Zhiguang Qian Robert W. Talbot

The objective of this study is to investigate the potential of nighttime light data, acquired with Defense Meteorological Satellite Program Operational Linescan System (DMSP/OLS) owned by National Oceanic and Atmospheric Administration (NOAA), in predicting urban daily particulate matter (PM)2.5 with an aerodynamic diameter of less than 2.5 μm average concentrations. To achieve the purpose, we ...

Farrokhnezhad Somayyeh Javidi Zari Nahidi Yalda Shakeri Mohammad Taghi

Introduction: Acne is a common problem in adolescent and youngage groups, for which several risk factors have been suggested.One of the risk factors is smoking. In studies on the relationshipbetween smoking and acne, conflicting results have been obtained.Method: This study was conducted on 133 male patients whowere visited at the dermatology clinic of Imam Reza hospital dueto acne as the case ...

Using outdoor public spaces as a place of social interaction is in a great consideration these days. Providing tolerable thermal condition as long as possible is one of the primary stage for people’s presence in these places. Outdoor thermal indices are introduced to help architects making appropriate decisions in climate responsive design procedure. By doing some field study research in extr...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید