نتایج جستجو برای: samani method
تعداد نتایج: 1630202 فیلتر نتایج به سال:
the aim of the present study was to investigate the relationships between self-esteem, marital relationship and components of happiness (consists of positive affect, negative affect and life-satisfaction), in married women. the 97 women were tested using the rosenberg self-esteem questionnaire (barrow, 2007), marital relationship questionnaire (khayyer and samani, 2003), positive and negative a...
The evapotranspiration rate has a vital role in agricultural water management. In this paper, ability of Box-Jenkins models in forecasting the reference potential evapotranspiration is estimated. For this purpose meteorological data of Mehrabad synoptic station in Tehran was selected. Using this data and according to eight famous evapotranspiration equations amounts of evapotranspiration were f...
تحقیقات اخیر روی روشهای عددی، بر ایده استفاده از روشهای بدون شبکه{meshfree methods} برای حل عددی معادلات دیفرانسیل با مشتقات جزئی تاکید می کند. یکی از ویژگی های رایج همه روشهای بدون شبکه، توانایی آنها در ساخت تقریب تابع، تنها با استفاده از اطلاعاتی در یک مجموعه از داده های پراکنده می باشد. تعدادی از روشهای بدون شبکه عبارتند از: روش هیدرودینامیکهای ذره ی هموار{smooth particle hydrodynamics ...
in this thesis a calibration transfer method is used to achieve bilinearity for augmented first order kinetic data. first, the proposed method is investigated using simulated data and next the concept is applied to experimental data. the experimental data consists of spectroscopic monitoring of the first order degradation reaction of carbaryl. this component is used for control of pests in frui...
Estimar a radiação solar é importante para vários segmentos da sociedade como agricultura, meteorologia e geração de energia elétrica (sistemas fotovoltaicos). Este artigo tem objetivo estimar Radiação Solar Global em quatro cidades do estado Pará - Brasil, por meio modelos estimativas, Hargreaves-Samani Bristow-Campbell, usando dados meteorológicos fornecidos pelas Estações Meteorológicas Auto...
Métodos de estimativa da evapotranspiração de referência no período seco e chuvoso em Imperatriz, MA
Para um bom manejo de irrigação dos cultivos agrícolas a determinação da evapotranspiração é indispensável. Pensando nisso objetivou-se com este estudo comparar e avaliar o desempenho estimativa referência (Eto) pelos métodos Hargreaves-Samani, Makkink, Budyko, Turc, Jensen-Haise, Linacre, Kharrufa, Radiação FAO24 em relação ao método padrão Penman-Monteith/FAO no período seco chuvoso, Imperatr...
*Corresponding author: Javad Baharara, Professor, Dept. of Biology & Research Center for Animal Development Applied Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran, Tel: + 98 5l1 8437092, Fax: + 98 511 8437092, Email: [email protected] Introduction Nowadays, the widespread use of various electrical and telecommunication appliances that produce electromagnetic fields is increasi...
No part of this work may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording or otherwise, without prior written permission from the Publisher. i Acknowledgements I would like to acknowledge the generous economical support of the present project granted by: would like to thank: My principal superv...
The alluvial plain of Sarvestan bears the sole source of potable water in Sarvestan county, Fars Province, Iran. In recent years, due to extended heavy pumping, the groundwater storage has been reduced continuously. The UNGWM (United Nation Ground Water Model) is used to evaluate the hydraulic characteristics of the Sarvestan aquifer and its future response to various regimes of recharge and di...
In this study, seven citrus gardens in different parts of Darab were chosen to evaluate the drip irrigation systems. The evaluation process was based on the Merriam and Keller’s model (1978). Besides the evaluation of drip irrigation systems, the water requirement of citrus was estimated using four models including Blany-Criddle modified by FAO, Hargrive-Samani, Pan Evaporation and Solomon-Ko...
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