نتایج جستجو برای: uvarov
تعداد نتایج: 192 فیلتر نتایج به سال:
This paper reports on some interesting taxa recently found in the Arabian Peninsula and the island of Socotra. Among them is a new species of brachypterous grasshopper Sphodromerus carapezzanussp. n. (Acrididae: Calliptaminae), described from an isolated area in Dhofar (Oman). A female Heteracris hemiptera (Uvarov, 1935) (Acrididae: Eyprepocnemidinae) is reported, with morphological characters ...
Using the Nikiforov-Uvarov method, an application of the relativistic Duffin-Kemmer-Petiau equation in the presence of a deformed Hulthen potential is presented for spin zero particles. We derived the first-order coupled differential radial equations which enable the energy eigenvalues as well as the full wavefunctions to be evaluated by using of the Nikiforov-Uvarov method that can be written ...
طی تحقیقی در بهار و تابستان سال 1391، بهمنظور بررسی فون راست بالان، با مراجعه ی متناوب به 13 منطقه ی مختلف از استان کردستان، بیش از 700 نمونه با استفاده از تور حشره گیری و سایر روش ها جمع آوری شد و به آزمایشگاه موزهی حشرات هایک میرزایانس انتقال یافت. سپس نمونه ها با مراجعه به کلیدهای شناسایی معتبر و بررسی ویژگی های مرفولژیک اندام هایی همچون پیش گرده و کارن های بخش های جلویی و عقبی آن، رگ بندی...
Hume, E. M. & Krebs, H. A. (1949). Spec. Rep. Ser. med. Res. Coun., Lond., No. 264. Husain, M. A. & Mathur, C. B. (1936). Indian J. Agric. Sci. VI, 591. Karrer, P. & Wiirgler, E. (1943). Hdv. chim. Acta. 26, 118. Kuhn, R. & Lederer, E. (1933). Ber. dtech. chm. Gee.66,488. Lederer, E. (1935). Les Carotenoide de Animaux. Paris: Hermann. McCay, C. M. (1938). Phy8iol. Zool. 11, 89. Mann, T. B. (194...
We investigate the approximate solutions of the Dirac equation with the position-dependent mass particle in the Eckart potential field including the Coulomb tensor interaction by using the parametric Nikiforov-Uvarov method. Taking an appropriate approximation to deal with the centrifugal term, the Dirac energy states and the corresponding normalized two-spinor components of the wave function a...
Based on the examination of types and additional materials, the morphology of Pternoscirtapulchripes Uvarov, 1925 and Flatovertex species were reviewed. As a result of our study, the genus Flatovertex Zheng, 1981 was synonymized with the genus Pternoscirta Saussure, 1884, the species Flatovertex cyaneitibialis Zhang & Han, 2010 was synonymized with Pternoscirta caliginosa (Haan, 1842), Flatover...
Jatropha curcas has been introduced into Niger since 2004 by International Crops Research Institute for the Semi-Arid Tropics (ICRISAT). This plant is cultivated for its oil, which can be used as a Biofuel. Through direct and indirect insect collection methods, an inventory of the insect associated with J. curcas has been conducted in Western Niger during two rainy seasons (from June to October...
Using the Nikiforov Uvarov method, we obtained the eigenvalues and eigenfunctions of the Woods Saxon potential with the negative energy levels based on the mathematical approach. According to the Symmetric quantum mechanics, we exactly solved the time− independent Shcrödinger equation for the same potential. Results are obtained for the sstates. − PT − PACS: 03.65.-w; 03.65.Db; 02.30.Gp; 03.65.Ge
A general form of the effective mass Schrödinger equation is solved exactly for Hulthen potential. Nikiforov-Uvarov method is used to obtain energy eigenvalues and the corresponding wave functions. A free parameter is used in the transformation of the wave function. PACS numbers: 03.65.-w; 03.65.Ge; 12.39.Fd
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