Physical Engineering

The eigenvalues of the potentials $V_{1}(r)=\frac{A_{1}}{r}+\frac{A_{2}}{r^{2}}+\frac{A_{3}}{r^{3}}+\frac{A_{4 }}{r^{4}}$ and $V_{2}(r)=B_{1}r^{2}+\frac{B_{2}}{r^{2}}+\frac{B_{3}}{r^{4}}+\frac{B_{4}}{r^ {6}}$, and of the special cases of these potentials such as the Kratzer and Goldman-Krivchenkov potentials, are obtained in N-dimensional space. The explicit dependence of these potentials in higher-dimensional space is discussed, which have not been previously covered.

We deal with the Hamiltonian hierarchy problem of the Hulthén potential within the frame of the supersymmetric quantum mechanics and find that the associated superymmetric partner potentials simulate the effect of the centrifugal barrier. Incorporating the supersymmetric solutions and using the first-order perturbation theory we obtain an expression for the energy levels of theHulthén potential which gives satisfactory values for the non-zero angular momentum states.

The concept of the elegant work introduced by Lévai in Ref. [5] is extended for the solutions of the Schrödinger equation with more realistic other potentials used in different disciplines of physics. The connection between the present model and the other alternative algebraic technique in the literature is discussed.

The recently introduced scheme is extended to propose an algebraic non-perturbative approach for the analytical treatment of Schrödinger equations with non-solvable potentials involving an exactly solvable potential form together with an additional piece. As an illustration the procedure is successfully applied to the Cornell potential by means of very simple algebraic manipulations. However, instead of providing numerical eigenvalues for the only consideration of the small strength of the related linear potential as in the previous reports, the present model puts forward a clean route to interpret related experimental or precise numerical results involving wide range of the linear potential strengths. We hope this new technique will shed some light on the questions concerning with the limitations of the traditional perturbation techniques.

We deal with the Hamiltonian hierarchy problem of the Hulthén potential within the frame of the supersymmetric quantum mechanics and find that the associated superymmetric partner potentials simulate the effect of the centrifugal barrier. Incorporating the supersymmetric solutions and using the first-order perturbation theory we obtain an expression for the energy levels of theHulthén potential which gives satisfactory values for the non-zero angular momentum states.

The concept of the elegant work introduced by Lévai in Ref. [5] is extended for the solutions of the Schrödinger equation with more realistic other potentials used in different disciplines of physics. The connection between the present model and the other alternative algebraic technique in the literature is discussed.

The aim of this study is to review 9 cases with urinary tract hydatid disease in terms of symptoms, findings, laboratory tests, radiological findings and treatment modalities.There were 7 males and 2 females with a mean age of 33.6 years (range from 7 to 67 years). In 6 patients hydatid cyst was located in the kidney (1 involved the liver),

Bunlardan PID ve Snail Tracks sadece geçtiğimiz 3 yıldır detaylı bir şekilde incelenmekte olup hala incelenmektedir. 1-EVA DISCOLOURATION PV modüllerde en çok göze çarpan degradasyon mekanizmalarından biri olup yıllık ortalama %0.8 lik degradasyonun %0.5 'inden azını oluşturur. EVA genellikle UV emiciler ve thermal stabilize ediciler ile oluşturulur fakat bu eklenen maddelerin seçimi ve oranı doğru şekilde yapılmaz ise EVA'da renk değişimleri gözlenir. Bunun sebebi , yanlış seçilen katkı maddelerinin birbiriyle etkilişimi sonucu oluşan cromofor türleri, ya da bu katkı maddelerinin(UV abrober) zamanla tükenmesi sonucu EVA nın zararlara karşı korunmasız hala gelmesidir. Backsheet 'den diffuse eden oksijen cromofor türlerinin yansıtıcılığını artırır ve hücreye düşen ışık miktarını azaltır, bu olay UV ışınımın ve sıcaklığın fazla olduğu bölgelerde daha sık görülür.

In this course we discussed the tecnologies which convert the energy and solar lights into electricity Electromagnetic waves exist in many spectral ranges visible light spectrum which comprises of the electroımagnetic waves we can see with our human eyes are only a tiny part of entire spectrum Which spectral range does the sun irradiate light ı will introduce the quantities "irrandiance" and "spectral power density"