نتایج جستجو برای: liss

تعداد نتایج: 1386  

Journal: :The Journal of bone and joint surgery. British volume 2005
C A Mueller C Eingartner E Schreitmueller S Rupp J Goldhahn F Schuler K Weise U Pfister N P Suedkamp

The treatment of fractures of the proximal tibia is complex and makes great demands on the implants used. Our study aimed to identify what levels of primary stability could be achieved with various forms of osteosynthesis in the treatment of diaphyseal fractures of the proximal tibia. Pairs of human tibiae were investigated. An unstable fracture was simulated by creating a defect at the metaphy...

Journal: :International Journal of Current Science Research and Review 2022

The main aims of this research are to identify the morphological changes and development Gungata River watershed due rapid growth effects anthropogenic activities. natural origin rivers is sensitive interference which causes a change in channel characteristics. Human activities have revamped river geomorphology made limitless geomorphic features. These features remarkable characteristics someti...

Journal: :IEEE Transactions on Communications 2021

Large intelligent surfaces (LISs) constitute a new and promising wireless communication paradigm that relies on the integration of massive number antenna elements over entire man-made structures. The LIS concept provides many advantages, such as capability to provide reliable space-intensive communications by effectively establishing line-of-sight (LOS) channels. In this paper, system spectral ...

2006
B. RayChaudhuri nee Bhaumik

A methodology is proposed for extracting information on land cover based on hyperspectral reflectance data derived from satellite image, without supervising with ground truth. The reflectance percentage, being a characteristic feature of the ground object acts as an indirect guidance to the classification and hence the method is named semi-supervised classification. It is tried with IRS LISS IV...

2016
Rubina Parveen Subhash Kulkarni V. D. Mytri S. Bharathi V. Shreyas R. Anirudh S. Sanketh P. D. Shenoy K. Venugopal

Extraction of vegetation is an important step for agricultural, forest and greenery mapping. The proposed method examines the complex process of land cover vegetation pattern classification using an IRS-1C LISS III image. Pre-processing was done by employing partial differential equation (PDE). Normalized differential vegetation index (NDVI) was applied to separate vegetation features from the ...

ژورنال: :تحقیقات مرتع و بیابان ایران 2010
میترا شیرازی غلامرضا زهتابیان حمیدرضا متین فر

امروزه علاقه­مندی زیادی به بررسی محتوای کیفی داده­های ماهواره ای برای مطالعات مختلف علوم زمین وجود دارد. شاخص­ها یکی از روشهای بارزسازی در استخراج اطلاعات مفید در تصاویر ماهواره ایست. در این تحقیق سعی شده است تا اثر شاخص­های مختلف ازجمله شاخص­هایmirv2 greenness, tvi, vnir, mnd, msavi, gemi, tsavi, savi, pd322 ,bi, int1, int2, pvi, si1, si2, si3,  gemi, و wdvi در بارزسازی پوشش سطح زمین در منطقه­...

Journal: :desert 0
m. shirazi m.sc graduate, university of tehran, karaj, iran gh.r. zehtabian professor, university of tehran, karaj, iran h.r. matinfar assistant professor, university of lorestan, khoram abad, iran s.k. alavipanah professor, university of tehran, tehran, iran

soil salinity has been a large problem in arid and semi arid regions. preparation of such maps is useful for natural resource managers. old methods of preparing such maps require a lot of time and cost. multi-spectral remotely sensed dates due to the broad vision and repeating of these imageries is suitable for provide saline soil maps. this investigation is conducted to provide saline soil map...

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