نتایج جستجو برای: a semi
تعداد نتایج: 13456618 فیلتر نتایج به سال:
تیلریوزیس گرمسیری یک بیماری لنفوپرولیفراتیو پیشرونده در گاومیش و گاو می¬باشد که بوسیله تیلریا آنولاتا ایجاد می¬شود. تیلریا اورینتالیس در گروه تیلریاهای خوش¬خیم قرار دارد (تیلریا سرجنتی، تیلریا بوفلی و تیلریا اورینتالیس). تیلریوزیس خوش خیم گاو و گاومیش، دارای علائم بالینی ملایم یا بدون علائم می¬باشد. در این مطالعه 138 نمونه¬ی خون از گاومیش¬ها و 138 نمونه¬ی خون از گاوها جمع آوری و مورد آزمایش ق...
the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...
فرض می کنیم a یک جبر روی میدان f (r یا) و a1 هر زیر جبری از a باشد، نگاشت جمعی (خطی) d: a1--->a را مشتق گیری جمعی (خطی) نامیده می شود اگر d(ab)ad(b) + d(a)b, a,b a1 و d را inner گوئیم در صورتیکه وجود داشته باشد c a1 ای بطوریکه: d(a)ac - ca, a a1 فرض می کنیم x یک فضای برداری نرم دار، و b(x) جبر عملگرهای خطی کراندار روی x باشد، مجموعه عملگرهای خطی کرانداری که دارای رتبه متناهی می باشد را با f(x) ...
abstract the current study set out to address the issue as to whether the implementation of portfolio assessment would give rise to iranian pre-intermediate efl learner autonomy. participants comprised 60 female in pre-intermediate level within the age range of 16-28.they were selected from among 90 language learners based on their scores on language proficiency test -key english test. then, t...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
thermal barrier coatings (tbcs) are used to provide thermal insulation to the hot section components of gas turbines in order to enhance the operating temperature and turbine efficiency. hot corrosion and thermal shocks are the main destructive factors in tbcs which comes as a result of oxygen and molten salt diffusion into the coating. in this thesis atmospheric plasma spraying was used to dep...
This paper presents our participation to the SemEval Task-17, related to “Taxonomy Extraction Evaluation” (Bordea et al., 2015). We propose a new methodology for semisupervised and auto-supervised acquisition of lexical taxonomies from raw texts. Our approach is based on the theory of pretopology which offers a powerful formalism to model subsumption relations and transforms a list of terms int...
Theoretical relative ages of galactic globular clusters have recently been challenged by a semi-empirical relation. It was used to point out that tested sets of isochrones were unable to reproduce the relation and yield internally inconsistent relative ages. We find that differential cluster ages derived with the isochrones by Salaris & Weiss (1998) are reliable and internally consistent. We al...
abstract biometric access control is an automatic system that intelligently provides the access of special actions to predefined individuals. it may use one or more unique features of humans, like fingerprint, iris, gesture, 2d and 3d face images. 2d face image is one of the important features with useful and reliable information for recognition of individuals and systems based on this ...
investigating the feasibility of a proposed model for geometric design of deployable arch structures
deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید