نتایج جستجو برای: modified penman equation

تعداد نتایج: 472208  

2018
J. Ambjørn

We recently formulated a model of the universe based on an underlying W3symmetry. It allows the creation of the universe from nothing and the creation of baby universes and wormholes for spacetimes of dimension 2, 3, 4, 6 and 10. Here we show that the classical large time and large space limit of these universes is one of exponential fast expansion without the need of a cosmological constant. U...

2012
Abdelkader Laaboudi Brahim Mouhouche Belkacem Draoui

In order to better manage the limited water resources in arid regions, accurate determination of plant water requirements is necessary. For that, the evaluation of reference evapotranspiration (ET0)--a basic component of the hydrological cycle--is essential. In this context, the Penman Monteith equation, known for its accuracy, requires a high number of climatic parameters that are not always f...

Journal: :Modern Physics Letters A 2017

Journal: :Physica A: Statistical Mechanics and its Applications 2018

Journal: :مدیریت آب و آبیاری 0
هوشنگ قمرنیا دانشیار گروه مهندسی آب، پردیس کشاورزی و منابع طبیعی، دانشگاه رازی کرمانشاه، کرمانشاه مریم جعفری زاده دانشجوی سابق کارشناسی ارشد آبیاری و زهکشی، گروه مهندسی آب، پردیس کشاورزی و منابع طبیعی، دانشگاه رازی کرمانشاه، کرمانشاه الهام میری دانشجوی سابق کارشناسی ارشد آبیاری و زهکشی، گروه مهندسی آب، پردیس کشاورزی و منابع طبیعی، دانشگاه رازی کرمانشاه، کرمانشاه محمد اقبال قبادی استادیار گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، دانشگاه رازی کرمانشاه، کرمانشاه

coriandrum sativum l. is one of the most important plants compared to the other herbs and medicinal plants as a planted covered area in kermanshah province. for a suitable irrigation management programming, the awareness of crop coefficient and water requirement in different plant stages is essential. the ratio of actual evapotranspiration to reference crop evapotranspiration is defined as crop...

1989
William C. Mann Eduard H. Hovy

The natural language sentence generation program Penman provides computational technology for generating English sentences and paragraphs, starting with input specifications of a non-linguistic kind. The research goals underlying Penman are threefold: to provide a useful and theoretically motivated resource for other research and development groups and the computational community at large, to p...

2014
Wei-guang Wang Shan Zou Zhao-hui Luo Wei Zhang Dan Chen Jun Kong

Evapotranspiration is one of the most important hydrological variables in the context of water resources management. An attempt was made to understand and predict the dynamics of reference evapotranspiration from a nonlinear dynamical perspective in this study. The reference evapotranspiration data was calculated using the FAO Penman-Monteith equation with the observed daily meteorological data...

2016
Ben C. Reynolds Dawn M. K. Penman Allan G. Howatson Lesley A. Jackson Charles H. Skeoch

References 1. Reynolds BC, Penman DM, Howatson AG, Jackson LA, Skeoch CH. Multifocal multi-organ ischaemia and infarction in a preterm baby due to maternal intravenous cocaine use: a case report. J Med Case Rep. 2009;3:9324. 2. Reynolds BC, Penman DM, Howatson AG, Jackson LA, Skeoch CH. Multifocal multi-organ ischaemia and infarction in a preterm baby due to maternal intravenous cocaine use: a ...

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