نتایج جستجو برای: ex
تعداد نتایج: 60193 فیلتر نتایج به سال:
بررسی بیوسیستماتیکی سرده matthiola r.br. (brassicaceae) در شمال شرق ایران چکیده .matthiola r. br یکی از سرده های تیره شب بو (brassicaceae) است که پراکنش وسیعی در ایران به ویژه شمال شرق آن دارد. از میان 48 گونه این سرده، تنها 7 گونه در شمال شرق ایران انتشار دارد. به دلیل هم پوشانی و تنوع زیاد صفات، شناسایی گونه های این سرده را با استفاده از کلیدهای شناسایی همواره با مشکلات زیادی مواجه است. در ...
در این پژوهش روشی جدید در شکل دهی پلاستیک شدید، به نام اکستروژن انبساطی در کانال های مساوی زاویه دار (ex-ecae) معرفی شده است. در این روش با اضافه کردن یک فضای انبساط در محل تقاطع کانال های قالب روش اکستروژن در کانال های مساوی زاویه دار (ecae)، کرنش موثر بالایی به نمونه القا می شود. در روش اکستروژن انبساطی متناوب (cee) در ابتدای فرایند به منظور منبسط کردن نمونه در فضای انبساطی، از مکانیزمی خارجی...
Background and Objective: Lead entry into the body causes considerable damages to the brain in the long term. We aimed to investigate the effects of exercise (treadmill running) and flaxseed oil on lead acetate-induced behavioral deficits in male rats. Materials and Methods: 60 rats were divided into 6 groups: Control (C), Exercise (Ex), Flaxseed oil (FO), Lead (L), Lead- Exercise (L-Ex), and...
C Unexpectedness and inevitability, two of the aesthetic qualities G.H. Hardy identified as being properties of beautiful proofs [Har, §], together seem paradoxical: how can something be seen as both unexpected and inevitable? Two possibilities are that the inevitability only becomes apparent in hindsight, or that the strategy of the proof is unexpected but, once chosen, proceeds inevitably...
This paper aims to analyze and depict urban equilibrium from the perspective of a complex force field between (positive) agglomeration economies and (negative) environmental externalities. Based on a simplified representation of a linear urban economy, an archetypical model based on general equilibrium principles is designed and its properties are investigated by using numerical simulations. Th...
Multi-class problems have a richer structure than binary classification problems. Thus, they can potentially improve their performance by exploiting the relationship among class labels. While for the purposes of providing an automated classification result this class structure does not need to be explicitly unveiled, for human level analysis or interpretation this is valuable. We develop a mult...
Today real-time analytics of large data sets is invariably computer-assisted and often includes a “human-in-the-loop”. Humans differ from each other and all have a very limited innate capacity to process new information in real-time. This introduces statistical and systematic uncertainties into observations, analyzes and decisions humans make when they are “in the loop”. Humans also have uncons...
Patterns of crop diversification of modern agricultural technology, especially during the period of the Green Revolution in the late sixties and early seventies, there is a continuous surge for diversified agriculture in terms of crops, primarily on economic considerations. Indian agriculture is increasingly getting influenced more and more by economic factors. This need not be surprising becau...
p. cm. – (Political economy of institutions and decisions) Includes bibliographical references and index.
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید