نتایج جستجو برای: spatial information

تعداد نتایج: 1449398  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده جنگلداری و مهندسی چوب و کاغذ 1391

درک الگوی توزیع مکانی ماکروفون خاک بدلیل اثرات آن روی فرآیندهای اکوسیستم بسیار مهم است. لیکن اطلاعات کمی در این خصوص وجود دارد. درمورد تنوع زیستی ارگانیسم ها وجانداران خاکزی که ازاجزای مهم وکلیدی درهرسیستم اکولوژیکی هستند و در بهبود حاصلخیزی خاک و تولیدات زمین وپایداری اکوسیستم ها(ازطریق فرآیندهای بیولوژیک)نقش عمده دارند تحقیقات کمی انجام شده است. این تحقیق جهت بررسی الگوی مکانی پارامترهای تنوع...

Journal: :the modares journal of electrical engineering 2015
hamid reza shahdoosti hesan ghassemian

an ideal fusion method preserves the spectral information in fused image without spatial distortion. the pca is believed to be a well-known pan-sharpening approach and being widely used for its efficiency and high spatial resolution. however, it can distort the spectral characteristics of multispectral images. the current paper tries to present a new fusion method based on the same concept. in ...

Journal: :iranian journal of public health 0
mahbubeh saei 1. dept. of epidemiology and biostatistics, school of public health, tehran university of medicalsciences , tehran, iran. kourosh holakouie-naieni 1. dept. of epidemiology and biostatistics, school of public health, tehran university of medicalsciences , tehran, iran. ehsan mostafavi 2. dept. of epidemiology, pasteur institute of iran , tehran, iran. mohammad ali sahraian 3. sina ms research center, dept. of neurology, sina hospital, tehran university of medical sciences , tehran, iran. mahmood mahmoodi 1. dept. of epidemiology and biostatistics, school of public health, tehran university of medicalsciences , tehran, iran. mohammad ali mansournia 1. dept. of epidemiology and biostatistics, school of public health, tehran university of medicalsciences , tehran, iran.

multiple sclerosis (ms) is a disease with high disabling disorders and considerable social and economic impacts. this study was conducted to analyze the spatial distribution of ms disease in tehran, iran during 2001-2012.the existing information in the ms patients' medical files who had registered in iranian ms society (imss), located in tehran office, was used for analysis. the relationship be...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه امام رضا علیه السلام - دانشکده زبانهای خارجی 1391

abstract this study tried to investigate whether there was any significant relationship between technical translation quality of the senior english translation students and their levels of verbal-linguistic, visual-spatial and interpersonal intelligences. in order to investigate the research questions, the researcher selected a hundred senior english translation students from three universitie...

Journal: :journal of medical signals and sensors 0
hassan khotanlou mahlagha afrasiabi

this paper introduces a novel methodology for the segmentation of brain ms lesions in mri volumes using a new clustering algorithm named scpfcm.  scpfcm uses membership, typicality and spatial information to cluster each voxel. the proposed method relies on an initial segmentation of ms lesions in t1-w and t2-w images by applying scpfcm algorithm, and the t1 image is then used as a mask and is ...

Journal: :پژوهش های جغرافیای انسانی 0
حسنعلی فرجی سبکبار دانشیار گروه کارتوگرافی دانشگاه تهران سعید آزادی قطار دانشجوی دکتری جغرافیا و برنامه ریزی شهری، دانشگاه تربیت مدرس سید کاظم علوی پناه استاد گروه کارتوگرافی دانشگاه تهران احمد پوراحمد استاد گروه جغرافیای انسانی دانشگاه تهران

extended abstractintroductiontoday is the world of information and its optimal uses (davies, 2003). information, doubtless, as the most important tools for managers and executive decision-makerscan play a significant role in solving the problems and meeting the needs (warnest, 2005). spatial data are discussed as one of the most sensitive and important factors in decision-making and planning in...

Journal: :Journal of Japan Association for Earthquake Engineering 2009

Obtaining of an image with high spectral and spatial resolution is the goal of image fusion. The PCA is a well-known pan-sharpening approach widely used for its efficiency and high spatial resolution. However, it can distort the spectral characteristics of the multispectral images. To avoid the weak points of the standard PCA technique, Spatial PCA transform has been proposed and the reasons of...

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