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Application of asymptotic iteration method to a deformed well problem

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Chinese Physics B 2016年第3期25卷 40-44页

作者： hakan ciftci h F Kisoglu Gazi Universitesi Fen FakultesiFizik Bolumu 06500 Teknikokullar AnkaraTurkiye Maritime Faculty Department of Basic SciencesMersin UniversityMersinTurkey

The asymptotic iteration method （AIM） is used to obtain the quasi-exact solutions of the Schr6dinger equation with a deformed well potential. For arbitrary potential parameters, a numerical aspect of AIM is also applied to obtain highly accurate energy eigenvalues. Additionally, the perturbation expansion, based on the AIM approach, is utilized to obtain simple analytic expressions for the energy eigenvalues.

关键词： asymptotic iteration method quasi-exact solutions perturbation method approximate solutions

Accidental Degeneracies in N dimensions for Potential Class αr^(2d-2)-βr^(d-2) via Asymptotic Iteration Method(AIM)

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Communications in Theoretical Physics 2017年第4期67卷 350-354页

作者： h.F.Kisoglu hakan ciftci Department of Basic Sciences Faculty of MaritimeMersin University Physics Department Science FacultyGazi University

In mathematical physics the main goal of quantum mechanics is to obtain the energy spectrum of an atomic *** many practices,Schrodinger equation which is a second order and linear differential equation is solved to do this *** are many theoretic mathematical methods serving this *** use Asymptotic Iteration Method(AIM) to obtain the energy eigenvalues of Schrodinger equation in N-dimensional euclidean space for a potential class given as αr^(2d-2)-βr^(d-2).We also obtain a restriction on the eigenvalues that gives ***,we crosscheck the eigenvalues and degeneracies using the perturbation theory in the view of the AIM.

关键词：迭代法退化 N维

Asymptotic iteration approach to supersymmetric bistable potentials

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Chinese Physics B 2012年第1期21卷 68-73页

作者： h. ciftci O. zer P. Roy Gazi niversitesi Fen-Edebiyat Fakültesi Fizik Blümü 06500 Teknikokullar-Ankara Turkey Department of Engineering Physics Faculty of Engineering University of Gaziantep 27310 Gaziantep Turkey Physics and Applied Mathematics Unit Indian Statistical Institute Calcutta 700035 India

We examine quasi exactly solvable bistable potentials and their supersymmetric partners within the framework of the asymptotic iteration method （AIM）. It is shown that the AIM produces excellent approximate spectra and that sometimes it is found to be more useful to use the partner potential for computation. We also discuss the direct application of the AIM to the Fokker-Planck equation.

关键词： bistable potentials asymptotic iteration

Mechanical behavior and deformation mechanism of shape memory bulk metallic glass composites synthesized by powder metallurgy

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Journal of Materials Science & Technology 2022年第19期114卷 42-54页

作者： Tianbing he Tiwen Lu Daniel Sopu Xiaoliang han haizhou Lu Kornelius Nielsch Jürgen Eckert Nevaf ciftci Volker Uhlenwinkel Konrad Kosiba Sergio Scudino Leibniz IFW Dresden Institute for Complex MaterialsHelmholtzstraße 2001069 DresdenGermany Guangdong Key Laboratory for Advanced Metallic Materials Processing South China University of TechnologyGuangzhou 510640China Erich Schmid Institute of Materials Science Austrian Academy of SciencesJahnstraße 12Leoben A-8700Austria Leibniz IFW Dresden Institute for Metallic MaterialsHelmholtzstraße 2001069 DresdenGermany TU Dresden Institute of Materials Science01062 DresdenGermany TU Dresden Institute of Applied Physics01062 DresdenGermany Department Materials Physics Montanuniversität LeobenJahnstraße 12A-8700 LeobenAustria Leibniz Institute for Materials Engineering IWT 28359 BremenGermany University of Bremen Faculty of Production Engineering28359 BremenGermany

The synthesis of martensitic or shape-memory bulk metallic glass composites(BMGCs)via solidification of the glass-forming melts requires the meticulous selection of the chemical composition and the proper choice of the processing parameters in order to ensure that the glassy matrix coexists with the desired amount of austenitic ***,a relatively limited number of such systems,where austenite and glassy matrix coexist over a wide range of compositions,is ***,we study the effective-ness of powder metallurgy as an alternative to solidification for the synthesis of shape memory ***_(48)Cu_(36)Al_(8)Ag_(8)matrix composites with different volume fractions of Ni_(50.6)Ti_(49.4)are fabricated using hot pressing and their microstructure,mechanical properties and deformation mechanism are investigated employing experiments and *** results demonstrate that shape-memory BMGCs with tun-able microstructures and properties can be synthesized by hot *** phase stability of the glass and austenitic components across a wide range of compositions allows us to examine fundamental as-pects in the field of shape memory BMGCs,including the effect of the confining stress on the martensitic transformation exerted by the glassy matrix,the contribution of each phase to the plasticity and the mechanism responsible for shear band *** present method gives a virtually infinite choice among the possible combinations of glassy matrices and shape memory phases,expanding the range of accessible shape memory BMGCs to systems where the glassy and austenitic phases do not form simul-taneously using the solidification route.

关键词： Metallic glass composites Niti alloys Mechanical properties Shear bands Martensitic transformation

Five methods for detection of helicobacter pylori in the Turkish population

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World Journal of Gastroenterology 2011年第47期17卷 5172-5176页

作者： Orhan Cem Aktepe ihsan hakkl ciftci Birol Safak ihsan Uslan Fatma husniye Dilek Department ofMicrobiology Faculty of Medicine Afyon Kocatepe UniversityAli Cetinkaya Campus 03200 Afyonkarahisar Turkey Microbiology Laboratory Atatfirk State HospitalGaziosmanpasa Mah. Soma Cad. 10100 Bahkesir Turkey

AIM: To compare culture analysis, helicobacter pylori (h. pylori) stool antigen (hpSA) test, polymerase chain reaction (PCR) and fluorescence in situ hybridization (FISh) for h. pylori detection. METhODS: One hundred and thirty-two consecutive adult dyspeptic patients receiving diagnostic endoscopy at the department of gastroenterology were enrolled in this study. Culture and histological examination were performed on biopsy specimens. PCR and FISh tests were applied to histopathological samples. Stool samples that were simultaneously collected were tested for the h. pylori antigen using the hpSA test and bacterial DNA using stool PCR. RESULTS: h. pylori was positively identified by histo-logical examination in 85/132 (64.4%) of the patients, while positive samples were found in 56 (42.4%), 64 (48.5%), 98 (74.2%), 28 (21.2%) and 81 (61.4%) of the patients by culture, hpSA, PCR, stool PCR and FISh methods, respectively. The results of the culture, biopsy PCR, hpSA and FISh tests, with the exception of the stool PCR, were found to correlate with the histological examination as a gold standard. CONCLUSION: The hpSA test is a rapid, simple, and noninvasive test for monitoring therapy. FISh is an accurate, rapid, cost-effective, and easy-to-use test for h. pylori detection.

关键词： helicobacter pylori 组织学聚合酶链反应 helicobacter pylori 凳子抗原在 situ 杂交的荧光

通过血清氧化物水平和对氧磷酶活性评估他达拉非在男性勃起功能障碍患者中急性心血管系统效应的初步研究

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中华男科学杂志 2010年第2期16卷 189-189页

作者： Verit A Savas M ciftci h 高冰不详北京大学第一医院男科中心 100009

最初,5型磷酸二酯酶（PDE5）抑制剂是被批准用于治疗男性勃起功能障碍的,而后又因PDE5抑制剂可能有助于改善内皮细胞功能而被尝试用于治疗某些全身性疾病。但是,自相矛盾的是PDE5可能存在某些威胁患者生命的不良反应。尽管还没有强有力... 详细信息

最初,5型磷酸二酯酶（PDE5）抑制剂是被批准用于治疗男性勃起功能障碍的,而后又因PDE5抑制剂可能有助于改善内皮细胞功能而被尝试用于治疗某些全身性疾病。但是,自相矛盾的是PDE5可能存在某些威胁患者生命的不良反应。尽管还没有强有力的证据来证实,但是这些不良反应似乎与心血管问题有关,例如心肌梗死以及卒中等。本研究通过评估血清氧化物水平以及对氧磷酶-1的活性,

关键词：男性勃起功能障碍对氧磷酶-1 活性评估氧化物心血管系统他达拉非患者血清

ThE EFFECTS OF LONG-TERM SILDE- NAFIL TREATMENT ON INTRAOCULAR PRESSURE WhITE-ON-WhITE AND BLUE- ON -YELLOW hUMPhREY PERIMETRY

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国际眼科杂志 2003年第1期3卷 45-45页

作者： h.Oguz A.Verit T.Gurkan h.ciftci Department of Ophthalmology Faculty of Medicine Harran University TurkeyDepartment of Urology Faculty of Medicine Harran University TurkeyDepartment of Ophthalmology Faculty of Medicine Harran University TurkeyDepartment of Urology Faculty of Medicine Harran University Turkey

Purpose: Sildenafil is a new and effective oral medication for the treatment of erectile dysfunction. The purpose of this study was to assess the long-term effects of sildenafil on intraocular pressure (IOP), white-on-white and blue-on-yellow humphrey visual fields (hVF). Methods: Ten impotent patients (27 to 55 years of age (mean±SD: 38.5 ±10.16) ( were enrolled in

关键词：汉弗莱视野分析仪眼内压西地那非万艾可长期治疗阳痿

MR扩散加权成像定量分析对纵隔良恶性病变的鉴别诊断

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国际医学放射学杂志 2012年第1期 90-90页

作者： S.Gumustas N.Inan h.T.Sarisoy Y.Anik A.Arslan E.ciftci 李琼 Department of Radiology School of MedicineUniversity of KocaeliKocaeli Uni.Tip Fak Radyoloji AD41380 Umuttepe KocaeliTurkey

目的探讨MR扩散加权成像对纵隔良恶性病变的鉴别诊断价值。材料与方法对53例纵隔病变进行传统的T1WI和T2WI,并在b=0和b=1000s/mm2下行扩散加权成像,计算其表观扩散系数ADC值。用t检验对这两组ADC值

关键词：扩散加权成像纵隔病变鉴别诊断表观扩散系数 MRI