نتایج جستجو برای: شاخص savi
تعداد نتایج: 75116 فیلتر نتایج به سال:
Abstract This research is a classroom action research. The use of the Examples non-examples type learning model with SAVI approach proven to be able increase student activities in Islamic Religious Education lessons. From results evaluation, it was explained that students reached 77% master material, so carried out by teacher could change passivity before application methods, become more active...
Impervious surfaces (IS) are a key indicator of environmental quality, and mapping of urban IS is important for a wide range of applications including hydrological modelling, water management, urban and environmental planning and urban climate studies. This paper addresses the accuracy and applicability of vegetation indices (VI), from Landsat imagery, to estimate IS fractions for European citi...
The persistent evolution of the Internet continues to transform the way individuals, as well as businesses, educational institutions, and government organizations access, share, and communicate information. Convergence of digital voice, video, and data, is further consolidating the Internet as a critical infrastructure. One of the main routing protocols in the Internet and current de facto stan...
The pistachio (Pistacia.vera) belongs to the Anacardiaceae family. Plants of this family are trees or shrubs (broadleaf) and in total comprising 75 genera and 600 species. This species is found in arid and semi-arid regions, located in the northeast of Iran. Many algorithms have been investigated for tree delineation and identification, in order to assist human operators in the information expl...
The biological function of anatomical specializations in the mechanosensory lateral line of elasmobranch fishes is essentially unknown. The gross and histological features of the lateral line in the Atlantic stingray, Dasyatis sabina, were examined with special reference to its role in the localization and capture of natural invertebrate prey. Superficial neuromasts are arranged in bilateral ro...
Gross primary productivity (GPP) is a key component of ecosystem carbon fluxes and the carbon balance between the biosphere and the atmosphere. Accurate estimation of GPP is essential for quantifying plant production and carbon balance for grasslands. Satellite-derived vegetation indices (VIs) are often used to approximate GPP. The widely used VIs include atmospherically resistant vegetation in...
the most widespread method to determine temporal and spatial variations of lai in a regional scale is empirical relationships based on the normalized difference of reflectance bands of satellite data. this study was done to evaluate the equations of remotely sensed lai estimation and optimize their parameters. therefore, lai was measured in the field for summer growing season in irrigated field...
کمبود آب در ایران همانند بسیاری از نقاط جهان عامل اصلی محدود کننده توسعه فعالیت های اقتصادی و کشاورزی است. خشکسالی و تغییرات اقلیمی از مسائلی است که در دهه های اخیر آسیب های زیادی را به پوشش های طبیعی و کشاورزی مناطق مرکزی ایران وارد کرده است. بارورسازی ابر براساس نظر سازمان هواشناسی جهانی (wmo) یکی از راه های کاهش اثرات تغییرات اقلیمی است. پس از عملیات بارور سازی ابرها، اطلاعات مربوط به نقاط ش...
Crop growth and yield monitoring over agricultural fields is an essential procedure for food security and agricultural economic return prediction. The advances in remote sensing have enhanced the process of monitoring the development of agricultural crops and estimating their yields. Therefore, remote sensing and GIS techniques were employed, in this study, to predict potato tuber crop yield on...
یکی از روشهایی که اخیرا در کشور بمنظور پایش محصولات کشاورزی مورد استفاده قرار می¬گیرد، استفاده از تصاویر ماهواره¬ای می¬باشد. با هدف تخمین عملکرد مزارع گندم بوسیله تصاویر ماهواره لندست سنجنده TM و ETM+، 13 مزرعه گندم در دو سال 1388 و 1389 در شهرستان مشهد مورد تجزیه و تحلیل قرار گرفت. تصاویر لندست مربوط به سه تاریخ 8 و 27 خرداد و 4 تیرماه سال 88 و 18 اردیبهشت، 3 و 19 خرداد سال 89 و داده¬های زمینی...
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