نتایج جستجو برای: overall accuracy
تعداد نتایج: 767669 فیلتر نتایج به سال:
Soil erosion is one of the most important environmental issues in developing countries, including Iran that there is inaccurate information about its amount and distribution. For this purpose, the accuracy and distribution of erosion classes obtained from EPM and MPSIAC models as compared to BLM as ground truth values were evaluated in Shahriari watershed. First, the required data and informati...
Background: Performing traditional autopsy mostly seems to be unpleasant in dead persons' relatives' opinion. This study aimed to determine the accuracy of laparoscopic examination of intra abdominal organs in comparison to the traditional autopsy in trauma victims. Methods: From December 2004 to September 2005, 50 fresh cadavers of blunt trauma victims were studied in less than 24 hours from d...
Background and purpose: Brucellosis is a zoonotic disease with worldwide distribution. Humans are usually infected through contact with infected animals or unpasteurized dairy products. We observed contradictory diagnostic value of ELISA and Standard tubal agglutination test (wright) in other studies. Therefore, we designed this study to compare the diagnostic value of ELISA and Standard tubal ...
in land use planning, mapping the present land use / land cover situation is a necessary tool for determining the current condition and for identifying land use trends. in this study, in order to provide a land use/ land cover map for ilam watershed, the irs-1c image data from 25th april 2006 were used. initial qualitative evaluation on data showed no significant radiometric error. ortho-rectif...
Semi-Lagranging schemes have been explored by several authors recently for transport problems in particular for moving interfaces using level set method. We incorporate the backward error compensation method developed in [2] into the semi-Lagranging schemes with almost the same simplicity and three times the complexity of a first order semi-Lagranging scheme but improve the order of accuracy. W...
We show that any conservative scheme for solving scalar conservation laws in two space dimensions, which is total variation diminishing, is at most first-order accurate.
The Spring season in Iran, especially the months of April and May, is a thriving season for the wild harvesting and sale of fresh medicinal plants and mushrooms that are seen in the form of local markets and seasonal stores during the rainy season. Based on habitats of Iranian truffles, they can be classified in two groups including Desert truffles and Forest truffles. Based on our knowledge de...
Extended Abstract Background and objectives: Google Earth images are a valuable resource for understanding and studying the natural area's ecology due to their high spatial resolution. Considering that these images have been available for many years, in our country, these valuable data have not been used enough, especially in order to study vegetation and optimal natural areas management. So, ...
نهان کاوی کشف وجود پیام مخفی در یک سیگنال حامل مانند تصویر است. تکنیک نهان کاوی، روش نهان نگاری استفاده شده، پیام تزریق شده و تصویری که به عنوان حامل استفاده می شود از عواملی هستند که بر کشف درست وجود پیام مخفی در تصویر موثرند. تصویر حامل دارای ویژگی هایی نظیر ابعاد، فرمت و ... است. اما مهم ترین ویژگی های تصویر که می توانند بر کارایی نهان کاوی موثر باشند، ویژگی های محتوی آن است. در بیشتر تکنیک...
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