نتایج جستجو برای: uvarov

تعداد نتایج: 192  

2017
Bruno Massa

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 ...

2004
Fevziye Yaşuk Cüneyt Berkdemir Ayşe Berkdemir

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 ...

ژورنال: :حشره شناسی گیاهان زراعی 0

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...

2005

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...

2014
Sameer M. Ikhdair Babatunde J. Falaye

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...

Journal: :Zootaxa 2013
Jianhua Huang Sergey Yurievich Storozhenko Benyong Mao Zhemin Zheng

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...

2014
Zakari Abdoul Habou Toudou Adam Eric Haubruge Guy Mergeai François J. Verheggen

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...

Journal: :Bolletino di zoologia 1970

2004
Ayşe Berkdemir Cüneyt Berkdemir Ramazan Sever

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

2008
Ramazan Sever Cevdet Tezcan

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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