نتایج جستجو برای: uvarov
تعداد نتایج: 192 فیلتر نتایج به سال:
The present paper deals with the description of eleven katydids of the tettigonid subfamily Phaneropterinae (Tettigoniidae). The katydids of more common occurrence in different parts of India include: Phaneroptera gracilis Burmeister, Ducetia japonica (Thunberg), Himertula pallisignata Ingrisch and Shishodia, Isopsera peducnulata Brunner von Wattenwyl, and Trigonocorypha unicolor Stal; while th...
The genus Prionotropis Fieber, 1853 is revised. It is distributed in scattered areas of the Mediterranean region from Turkey in the East to Spain in the West. Overall, seven species are listed, namely P. maculinervis (Stål, 1878) (Turkey; P. urfensis Ramme, 1933 is here considered its synonym), P. willemsorum n. sp. (Greece, Epirus; previously considered P. appula), P. appula (O.G. Costa, 1836)...
چکیده به منظور بررسی فون راست بالان استان کردستان و طی تحقیقی با عنوان بررسی فونستیک و تاکسونومیک راست بالان (hexapoda: orthoptera) استان کردستان در بهار و تابستان سال 1391، بیش از 700 نمونه با مراجعه متناوب به 13 منطقه مختلف و از پیش تعیین شده دراستان ، با استفاده از تور حشرهگیری و یا سایر روشها جمعآوری شده و به آزمایشگاه انتقال یافتد.در آزمایشگاه موزه حشرات هایک میرزایانس و با توجه به ویژگی ...
Exact solutions of the three dimensional Schrödinger equation with a new generalized noncentral potential are studied by using the Nikiforov-Uvarov method. The eigenfunctions and the corresponding energy eigenvalues of the system are obtained analytically. The results we examined for this potential are comparable to those obtained by the other methods.
Exact solution of the Schrödinger equation with deformed ring shaped potential is obtained in the parabolic and spherical coordinates. The Nikiforov-Uvarov method is used in the solution. Eigenfunctions and corresponding energy eigenvalues are calculated analytically. The agreement of our results is good. PACS numbers: 03.65.-w, 12.39.Jh, 21.10.-k
Using supersymmetric approach, the Schrödinger equation for various potentials can be exactly solved. In this work, the solutions of Schrödinger equation for Eckart potential is exactly obtained via the Nikiforov-Uvarov method. The corresponding energy eigenstates and energy eigenvalue of Hamiltonian analytically are found. PACS: 12.20.-m; 11.80.-m; 11.80.Et
We investigate complex PT and non-PT-symmetric forms of the generalized WoodsSaxon potential. We also look for exact solutions of the Schrödinger equation for the PT and/or non-PT-symmetric potentials of the kind mentioned above. Nikiforov-Uvarov method is used to obtain their energy eigenvalues and associated eigenfunctions. PACS:03.65.Fd, 03.65.Ge, 02.30.Gp
There are many trials for modeling of the quarkonium systems like (cc-,bb-andb-c). One them is using phenomenological potentials by different techniques to describe their spectroscopy. In present work we choose a potential (linear, Yukawa and harmonic potentials) in framework nonrelativistic Schrödinger’s equation with relativistic corrections Nikiforov-Uvarov (NU) method. We obtained eigen fun...
The Schrödinger equation with the PT−symmetric Hulthén potential is solved exactly by taking into account effect of the centrifugal barrier for any l-state. Eigenfunctions are obtained in terms of the Jacobi polynomials. The Nikiforov-Uvarov method is used in the computations. Our numerical results are in good agreement with the ones obtained before.
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