نتایج جستجو برای: turanian region
تعداد نتایج: 538050 فیلتر نتایج به سال:
روشهای عددی مانند روش هم محلی، گالرکین و تربیع برای حل معادلات انتگرالی فردهلم در نهایت به حل یک دستگاه معادلات خطی یا غیر خطی جبری منجر می شوند که حل این دستگاهها اغلب از نظر زمانی و دقت در محاسبه جواب با مشکل مواجه می شوند. در این رساله روش هایی ترکیبی را بر مبنای الگوریتم ابتکاری الکترومغناطیس و روش gmres را برای غلبه بر این قبیل از مشکلات در حل این دستگاه معادلات ارائه نموده ایم. الگوریتم...
Roads have an important role in plants dispersal on different scales. Various plant species settle on roadsides, but some of them can enter the natural environments and threaten their biodiversity. Worldwide knowledge of roadside flora is necessary for local and global management of natural areas. Accordingly, the roadside flora of Northern Khorasan rangelands was studied along the 600 km ...
The increasing rate of irreversible damages to natural habitats has reinforced the need for gathering biodiversity fundamental data to conservation. Priority setting is the most important step in protection programs. Solanaceae as the the one of important economic families of eudicots distributed throughout North and South America, Europe, Africa, Asia, Australia, and the South Pacific. Up to n...
The adaptive humoral immune response is responsible for the generation of antimicrobial proteins known as immunoglobulin molecules or antibodies. Immunoglobulins provide a defense system against pathogenic microbes and toxins by targeting them for removal and/or destruction. Historically, antibodies have been thought to be composed of distinct structural domains known as the variable and consta...
This paper revisits conceptual neighborhood graphs for the topological relations between two regions, in order to bridge from the A-B-C neighborhoods defined for interval relations in R to region relations in R and on the sphere S. A categorization of deformation types—built from same and different positions, orientations, sizes, and shapes—gives rise to four different neighborhood graphs. They...
Detailed image annotation necessary for reliable image retrieval involves not only annotating the image as a single artifact, but also annotating specific objects or regions within the image. Such detailed annotation is a costly endeavor and the available annotated image data are quite limited. This paper explores the feasibility of using image captions from scientific journals for the purpose ...
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