نتایج جستجو برای: and kermani wind

تعداد نتایج: 16848741  

Journal: :تحقیقات جغرافیایی 0
مهدی دهقان طزرجانی جغرافیای طبیعی و اقلیم شناسی دانشگاه یزد کمال امیدوار اقلیم شناسی دانشگاه یزد

in the current research, wind energy potential at yazd synoptic stations, which contain wind data with 10 years statistic period and beyond, including yazd synoptic station (1976-2006), tabass (1987-2006), robate poshte badam (1992-2006), bafgh (1993-2006) and marvast (1997-2006), has been studied. wind data were obtained from the recorded data at yazd meteorology organization. the data were re...

اسدی فوزی, مسعود, اسمعیلی زاده کشکوئیه, علی, خسروی, سمیرا,

For genetic analyses of growth traits of Kermani sheep including body weight at birth, three, six, nine and twelvemonths of age, 10, 459 body weight records measuredon 3132 animals originated from 78 sires and 1163 dams were used. The data were collected at Kermani sheep breeding station during 1988 to 2010. The data were analyzed using a multivariate animal model. In the model, animal age, sex...

Journal: :آب و خاک 0
محمد موحدان نادر عباسی مجید کرامتی

abstract wind erosion of soils and suspended particles in iran is one of the serious environmental and agricultural problems which affect agricultural lands, water reservoirs, irrigation canals, drains and etc. therefore wind erosion control needs attention specially in arid and semi-arid regions. although in recent years, some polymeric materials have been used for improvement of structural st...

Journal: :پژوهش های جغرافیای طبیعی 0
قاسم عزیزی حسین علی قنبری

through this article, the distribution of air pollutants in tehran have been simulated based on wind patterns with and without the presence of synoptic by tapm (a meso-scale model). the simulation covers three horizontal resolution domains 30, 15 and 5 kilometers. the pollutants chosen for this are co and pm10 and wind data is 10 meter height level. the result has shown that the model simulated...

Nowadays, propagation of wind turbines make challenges to supply safe power to the grid. Because of wind speed changes, supervisors are concerned to wind turbines, be able to produce appropriate electric power during the wind speed changes. As a matter of fact, investors are mostly like to invest on offshore wind farms, because of their more stable and continuous wind speed rather than onshore ...

Journal: :international journal of occupational hygiene 0
milad derakhshan jazari msc of occupational health engineering, tehran university of medical sciences, tehran, iran mahdyeh boubehrejh national center of air and climate change, department of the environment, tehran, iran maryam avishan national center of air and climate change, department of the environment, tehran, iran jamshid gholampour [email protected] mohammad reza monazzam esmail pour professor of occupational health engineering, tehran university of medical sciences, tehran, iran mohsen meshkani [email protected]

original article   introduction: wind-turbine noise emission and its environmental impact are considerable issues nowadays. considering the importance of the issue, the purpose of this study was to prepare noise map and wind turbines sound characteristics on the largest wind farm of iran. method: this study was carried out in two phases:1) in order to prepare the daytime sound level (ld) noise ...

Journal: :international journal of architectural engineering and urban planning 0
mohammadjavad mahdavinejad tarbiat modares university, tehran, iran mohammadhossein ghasempoorabadi honar university kavan javanrudi tarbiat modares university, tehran, iran

this paper is an attempt to numerical modeling and experimental study of air flow in the yazdi wind-towers. wind towers has been known as one of the most effective climatic elements in iranian traditional architecture. this paper is an attempt to evaluating yazdi wind-tower to discussion the two main questions: 1. what is the role of orientation of wind-towers span, regarding to climate and hei...

Journal: :دانش آب و خاک 0
محمد رضا حامی کوچه باغی گروه مهندسی آب دانشگاه تبریز امیر حسین ناظمی استاد- گروه مهندسی آب دانشکده کشاورزی دانشگاه تبریز علی اشرف صدرالدینی استاد- گروه مهندسی آب دانشکده کشاورزی دانشگاه تبریز رضا دلیر حسن نیا استادیار گروه مهندسی آب دانشکده کشاورزی دانشگاه تبریز

from the mathematical point of view, the fao penman-monteith equation shows a homographic function related to the wind speed. the homographic function has horizontal and vertical asymptotes. in this issue horizontal asymptote is applicable; because the vertical asymptote occurs for negative values of wind speed but the negative sign indicates the direction of the wind speed and only the absolut...

Amirmohammad Sattari Ashkan Irannezhad Pedram Hanafizadeh, Pouria Ahmadi Seyed Erfan Hosseinidoost

In this research paper, a 10 minute period measured wind speed data at 10 m, 30 m, and 40 m heights are presented for one of the major provinces of Iran. Four stations in Khuzestan- Abadan, Hosseyneh, Mahshahr, and Shushtar- are analyzed to determine the potential of wind power generation in this province. From the primary evaluation and by determining mean wind speed and also the Weibull f...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید