نتایج جستجو برای: independent variables were time 1

تعداد نتایج: 6431015  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده علوم انسانی 1392

the purpose of this study was to investigate the effect of task repetition on accuracy of iranian efl learners ’speaking ability. in order to achieve this purpose, a null hypothesis was developed: there is no statistically significant difference between accuracy speaking ability in iranian efl learners by use of task repetition. ; of course i should mention that, beside this null hypothesis, an...

Response surface methodology (RSM) is a statistical method useful in the modeling and analysis of problems in which the response variable receives the influence of several independent variables, in order to determine which are the conditions under which should operate these variables to optimize a corrugated box production process. The purpose of this research is to create response surface mode...

Journal: :مهندسی بیوسیستم ایران 0
سعید ملازهی آموزش پرورش- هنرستان کشاورزی -معاون فنی حسن صدرنیا استادیارگروه مهندسی بیوسیستم دانشگاه فردوسی مشهد

for fighting with blights and studying on effect of thickness, two experiments were done. the first series were included independent variable ages of blight in four levels (age1,age2,age3 and age4) and the thermal care temperature in four levels(10,15,20 and 30 seconds) and the dependent variable is death rate . the second series were included independent variables thermal care temperature in t...

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 ...

2005
Mårten Trolin

We will now consider the problem of creating a set of bitstrings such that the bits are almost k-wise independent. Our method consists of two steps. In the first step we create a set of bitstrings such that parity on every fixed index set is almost even. In the second step we present a method to convert such a set into a set where the bits are almost k-wise independent. For presentational reaso...

Anuj Garg, Rabinarayan Parhi Sanjay Singh,

The objective of this work was to develop bioadhesive topical gel of Aceclofenac with the help of response-surface approach. Experiments were performed according to a 3-level factorial design to evaluate the effects of two independent variables [amount of Poloxamer 407 (PL-407 = X1) and hydroxypropylmethyl cellulose K100 M (HPMC = X2)] on the bioadhesive character of gel, rheological property o...

Journal: :trauma monthly 0
hossein alimohammadi department of emergency medicine, imam hosein hospital, shahid beheshti university of medical sciences, tehran, ir iran alireza baratloo department of emergency medicine, shohadaye tajrish hospital, shahid beheshti university of medical sciences, tehran, ir iran; department of emergency medicine, shohadaye tajrish hospital, shahid beheshti university of medical sciences, tehran, ir iran. tel.: +98-9122884364, fax: +98-2122721155 ali abdalvand department of family medicine, university of alberta, edmonton, canada alaleh rouhipour department of pediatrics, valeeasr hospital, ghazvin university of medical sciences, abyek, ir iran saeed safari department of emergency medicine, shohadaye tajrish hospital, shahid beheshti university of medical sciences, tehran, ir iran

background pain management with the use of sedatives and analgesics has several advantages and few complications or side effects. objectives in this study, we planned to evaluate the effects of pain control on oxygen saturation independent of other factors, such previous cardio-pulmonary conditions or respiratory rate. patients and methods sixty-seven adult patients with direct trauma to extrem...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده ادبیات و علوم انسانی 1392

language learning courseware has been receiving growing attention by english educators since its advent. a variety of softwares have been designed by software designers and resorted to by language educators to supplement language textbooks. this experimental study investigated how the application of computerized version of language textbooks and the reception of the entire course through comput...

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