نتایج جستجو برای: alpha cut of pentagonal number
تعداد نتایج: 21194516 فیلتر نتایج به سال:
this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this stud...
Introduction: Given that the satisfaction from educational facilities and feel comfort and relax in classroom can affect on learning, focus and increase productivity, so the necessity for a questionnaire with appropriate validity and reliability to determine students' satisfaction from training chairs has been felt. therefor the aim of this study was to design and validate of students' satisfac...
burnout is a response to the chronic work stress which is prevalent mostly among the people who do people job, like teaching. the purpose of this study was to develop a valid and reliable instrument that can measure burnout in foreign language teachers. although some widely used instruments were developed before which measured burnout in teachers, a specific instrument which include specific sy...
If A is a set of natural numbers containing 0, then there is a unique nonempty “reciprocal” set B of natural numbers (containing 0) such that every positive integer can be written in the form a+ b, where a ∈ A and b ∈ B, in an even number of ways. Furthermore, the generating functions for A and B over F2 are reciprocals in F2[[q]]. We consider the reciprocal set B for the set A containing 0 and...
Carbon and silicon pentagonal low-dimensional structures attract a great interest as they may lead to new exotic phenomena such as topologically protected phases or increased spin-orbit effects. However, no pure pentagonal phase has yet been realized for any of them. Here we unveil through extensive density functional theory calculations and scanning tunnelling microscope simulations, confronte...
abstract narcissus species (amaryllidaceae) are highly suitable outdoor ornamental plants and also as cut flower. narcissus is used in folk medicine and is a medicinal plant, because of galanthamine properties. south area of iran such as khouzestan province, is one of the most important areas of producing cut flower of narcissus in winter season. in this research, the effects of planting distan...
Here we consider approaches to the ranking of fuzzy numbers based upon the idea of associating with a fuzzy number a scalar value, its signal/noise ratios, where the signal and the noise are defined as the middle-point and the spread of each $gamma$-cut of a fuzzy number, respectively. We use the value of a as the weight of the signal/noise ratio of each $gamma$-cut of a fuzzy number to calcula...
The stress wave propagation in a generalized thermoelastic polygonal plate of inner and outer cross sections is studied using the Fourier expansion collocation method. The wave equation of motion based on two-dimensional theory of elasticity is applied under the plane strain assumption of generalized thermoelastic plate of polygonal shape, composed of homogeneous isotropic material. The freque...
I have investigated the effects of autonomic drugs and prostaglandins on in vitro smooth muscle spontaneous contractions and made the quantitative analysis of autonomic receptors in the canine ureter. Ureteral muscle strip cut helically usually generated spontaneous contractions whereas those cut circularly or longitudinally did not generate spontaneous contractions. These results suggest the i...
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