نتایج جستجو برای: مدل envi

تعداد نتایج: 120834  

2000
Paul R. Adler

Developing integrated farming systems is critical to reducing the environmental impact of animal production. Traditionally, this has been through integrating animal and feed or plant production. But that has become increasingly difficult as agricultural production has become regionally specialized leading to the spatial separation of animal and feed production. This spatial separation has led t...

Journal: :advances in environmental technology 0
seyyed hossein hosseini ilam university amir hossein peyman rad department of architecture, faculty of engineering, university of ilam, ilam, iran eslam kashi department of chemical technologies, iranian research organization for science and technology (irost), p.o. box 33535111, tehran, iran

with the wind permanent flow in the cities, obtaining the minimal pollution in the environment is accessible. different policies have been considered for optimization of cities such as attachment and or reduction of building parts like air-traps, ceiling forms and so on. due to population growth in cities and the increasing need for resettlement these people in the cities, inevitably, to the hi...

2002
John C. Hart Thomas A. DeFanti

Documentation is fundamental to science. For virtual reality to be an e ective scienti c visualization tool, it must be recordable. This position statement outlines the bene ts of image-based recording of virtual environments and introduces the VR-VCR, a device for immersive playback of recorded virtual envi-

2010
Robert J. DiStasio Ronald G. Resmini

The in-scene atmospheric compensation (ISAC) algorithm of Young et al. (2002) [14] (and as implemented in the ENVI software system [16] as ‘Thermal Atm Correction’) is commonly applied to thermal infrared multiand hyperspectral imagery (MSI and HSI, respectively). ISAC estimates atmospheric transmissivity and upwelling radiance using only the scene data. The ISAC-derived transmissivity and upwe...

ژورنال: :پژوهش های جغرافیایی برنامه ریزی شهری 2015
مجتبی مهدیان ماهفروزی علی اکبر شمسی پور قاسم عزیزی

جمعیت شهرنشین زیاد، الگوی شهرسازی نامنظم، سرانۀ فضای سبز نامناسب و توزیع ناهمگن فضای سبز در شهر تهران سبب افزایش شدت و چندهسته ای شدن جزیرۀ گرمایی شده است. یکی از هسته های مذکور بر فراز بوستان ولایت قرار دارد. با توجه به افزایش فضای سبز در بوستان ولایت طی سال های اخیر و ارتباط بین شدت جزیرۀ گرمایی با فضای سبز، در این پژوهش آثار افزایش فضای سبز بر الگوی جزیرۀ گرمایی در این منطقه بررسی می شود. در...

Journal: :The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2020

Journal: :environmental health engineering and management 0
hamid reza azimzadeh department of environmental science, school of natural resources & desert studies, yazd university, yazd, iran reza ali fallahzadeh environmental science and technology research center, department of environmental health engineering, student research committee, shahid sadoughi university of medical sciences, yazd, iran mohammad taghi ghaneian environmental science and technology research center, department of environmental health engineering, shahid sadoughi university of medical sciences, yazd, iran seyed ali almodaresi department of gis & rs, engineering college, islamic azad university, yazd branch, yazd, iran hadi eslami environmental science and technology research center, department of environmental health engineering, student research committee, shahid sadoughi university of medical sciences, yazd, iran mahmoud taghavi

background: the phenomenon of dust is a serious environmental problem in dry and semi dry regions. it has a destructive effect for the residents of such regions. over two-thirds of iran is in areas of dry and semi-dry climate conditions. methods: in this research, dust fall measurements were taken in 41 stations across yazd city using a marble dust collector (mdco) located in different parts of...

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