نتایج جستجو برای: three regression equations based on multiple regression for three factors soil moisture

تعداد نتایج: 14828061  

Journal: : 2022

The article substantiates the influence of agrophysical factors and climatic conditions on yield protein gluten content in winter wheat grain. Agrophysical factors, soil moisture during sowing period, tillering phase for various methods basic tillage years Lower Volga region are analyzed. data obtained three (2018–2020) show that a small (by 10–12 cm) black fallow reduces its by 0.25 t/ha (10.6...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده علوم اجتماعی 1393

the present study is paid to the evaluation of the welfare program of the unemployment insurance in iran. the main purpose which was the main reason for performing this thesis, was the unemployment insurance plan’s challenges in iran such as financial problems of this plan, prolongation of the credit receipt for some insured people, unemployment slow exiting from the unemployment insurance fund...

2013
Xueling Yao Bojie Fu Yihe Lü Feixiang Sun Shuai Wang Min Liu

Many spatial interpolation methods perform well for gentle terrains when producing spatially continuous surfaces based on ground point data. However, few interpolation methods perform satisfactorily for complex terrains. Our objective in the present study was to analyze the suitability of several popular interpolation methods for complex terrains and propose an optimal method. A data set of 153...

ریحانی‌تبار, عادل, محمودی, شهاب, نجفی, نصرت‌اله,

Due to low organic matter content in most of the cultivated soils of Iran and occurrence of drought stress in plants because of low precipitation, application of sewage sludge compost has been recommended for increasing soil organic matter content and improving soil fertility, increasing crop tolerance to water deficit and improving crop yield. So, in this study, the effects of soil moisture an...

2008
Ting Zhang Qiming Zeng Ying Li Yun Xiang

Coherence is an important parameter to measure InSAR data quality in repeat-pass interferometry and soil moisture change can cause de-correlation. Relation between coherence and soil moisture was examined in this paper by using the ERS-1 interferometry pairs on Cangzhou area for which there are some heavy rain between the acquisition dates of the two images. The soil moisture is obtained based ...

Journal: :journal of research in health sciences 0
sayyedeh sara azimi davood khalili farzad hadaegh parvin yavari yadollah mehrabi fereidoun azizi

background: population attributable fraction (paf) is one of the most practical measures for estimating the burden of risk factors with some challenges in its calculation. cardiovascular disease (cvd) is the first cause of death worldwide and the estimation of accurate pafs for cvd risk factors is of great importance in conducting preventive strategies. our aim was to estimate the pafs of cvd r...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه مواد و انرژی - پژوهشکده سرامیک 1392

thermal barrier coatings (tbcs) are used to provide thermal insulation to the hot section components of gas turbines in order to enhance the operating temperature and turbine efficiency. hot corrosion and thermal shocks are the main destructive factors in tbcs which comes as a result of oxygen and molten salt diffusion into the coating. in this thesis atmospheric plasma spraying was used to dep...

Extended abstract 1- Introduction Soil moisture curve is an important characteristic of soil and its measurement is necessary for determining soil available water content for plant, evapotranspiration and irrigation planning. Direct measurements of soil moisture coefficients are time-consuming and costly. But it is possible to estimate these characteristics from readily available soil propert...

2005
CHARLES F. CHILCUTT L. TED WILSON ROBERT LASCANO KEVIN F. BRONSON JILL BOOKER

Soil physical and chemical properties can affect plant growth and nutrition, which in turn can affect a plantÕs attractiveness and susceptibility to insect herbivores. A further source of variation in these relationships is the spatial scale at which patterns are measured. Both the size of the area being sampled, or scale, and the distance between measurements, or grain, are parameters that aff...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - پژوهشکده ادبیات 1391

the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...

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