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Polariton lasing in mie-resonant perovskite nanocavity

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Opto-Electronic Advances 2024年第4期7卷 27-42页

作者： mikhail A.masharin Daria Khmelevskaia Valeriy I.Kondratiev Daria I.markina Anton D.Utyushev Dmitriy m.Dolgintsev Alexey D.Dmitriev Vanik A.Shahnazaryan Anatoly P.Pushkarev Furkan isik Ivan V.Iorsh Ivan A.Shelykh Hilmi V.Demir Anton K.Samusev Sergey V.makarov UNAm-Institute of materials Science and Nanotechnology National Nanotechnology Research CenterDepartment of Electrical and Electronics EngineeringDepartment of PhysicsBilkent UniversityAnkara 06800Turkey ITmO University School of Physics and EngineeringSt.Petersburg 197101Russia Abrikosov Center for Theoretical Physics MIPTDolgoprudnyiMoscow Region 141701Russia LUmINOUS!Center of Excellence for Semiconductor Lighting and Displays School of Electrical and Electronic EngineeringSchool of Physical and Mathematical SciencesSchool of Materials Science and EngineeringNanyang Technological UniversitySingapore 639798Singapore Department of Physics Engineering Physics and AstronomyQueen’s UniversityKingstonOntario K7L 3N6Canada Science Institute University of IcelandDunhagi 3IS-107ReykjavikIceland Experimentelle Physik 2 Technische Universität DortmundDortmund 44227Germany Qingdao Innovation and Development Center Harbin Engineering UniversityQingdao 266000China

Deeply subwavelength lasers(or nanolasers)are highly demanded for compact on-chip bioimaging and sensing at the *** of the main obstacles for the development of single-particle nanolasers with all three dimensions shorter than the emitting wavelength in the visible range is the high lasing thresholds and the resulting *** we ex-ploit exciton-polariton condensation and mirror-image mie modes in a cuboid CsPbBr3 nanoparticle to achieve coherent emission at the visible wavelength of around 0.53μm from its ultra-small(≈0.007μm3 or≈λ3/20)semiconductor *** polaritonic nature of the emission from the nanocavity localized in all three dimensions is proven by direct com-parison with corresponding one-dimensional and two-dimensional waveguiding systems with similar material *** a deeply subwavelength nanolaser is enabled not only by the high values for exciton binding energy(≈35 meV),re-fractive index(>2.5 at low temperature),and luminescence quantum yield of CsPbBr3,but also by the optimization of po-laritons condensation on the mie resonances with quality factors improved by the metallic ***,the key parameters for optimal lasing conditions are intermode free spectral range and phonons spectrum in CsPbBr3,which govern polaritons condensation *** chemically synthesized colloidal CsPbBr3 nanolasers can be potentially de-posited on arbitrary surfaces,which makes them a versatile tool for integration with various on-chip systems.

关键词： nanolaser perovskite polariton mie resonance exciton-polariton

Fracture Loci in Sheet metal Forming: A Review

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Acta metallurgica Sinica(English Letters) 2015年第12期28卷 1415-1425页

作者： m.Beatriz Silva Kerim.isik A.Erman Tekkaya Paulo A.F.martins IDmEC Instituto Superior Técnico Universidade de Lisboa Institute of Forming Technology and Lightweight Construction Technical University of Dortmund

Fracture in sheet metal forming usually occurs as ductile fracture, rarely as brittle fracture, at the operating temperatures and rates of loading that are typical of real processes in two different modes：（1） tensile and（2） in-plane shear（respectively, the same as modes I and II of fracture mechanics）. The circumstances under which each mode will occur are identified in terms of plastic flow and ductile damage by means of an analytical approach to characterize fracture loci under plane stress conditions that takes anisotropy into consideration. Fracture loci was characterized by means of the fracture forming limit line and by the shear fracture forming limit line in the fracture forming limit diagram. Experiments were performed with single point incremental forming and double-notched test specimens loaded in tension, torsion and in-plane shear give support to the presentation and allow determining the fracture loci of AA1050-H111 aluminium sheets with1 mm thickness. The relation between fracture toughness and the fracture forming limits was also investigated by comparing experimental values of the strains at fracture obtained from a truncated conical part produced by single point incremental forming and from double-notched test specimens loaded in tension.

关键词： Sheet forming Fracture Fracture forming limit diagram

Quantitative mobility Spectrum Analysis for Determination of Electron and magneto Transport Properties of Te-Doped GaSb

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Chinese Physics Letters 2005年第9期22卷 2363-2366页

作者： S. Acar m. Kasap B. Y. isik S. Oezcelik N. Tugluoglu S. Karadeniz Department of Physics Faculty of Science and Arts University of Gazi Teknikokullar 06500 Ankara Turkey Department of materials Research Ankara Nuclear Research and Training Center 06100 Besevler Ankara Turkey

Resistivity, magnetoresistivity and Hall effect measurements in n-type Te-doped GaSb grown by the liquid encapsuled Czochralski technique are carried out as functions of temperature （35-350 K） and magnetic field （0-1.35 T）. The power law model is used to explain the temperature-dependent resistivity. The magnetic-field-dependent data are analysed using the quantitative mobility spectrum analysis technique. The effect of individual band parameters （nL, nr, μL, μr, p and μp） on both the electron and magneto transports have been discussed. The EL - Er energy separation between the L and conduction band edges is also derived.

关键词： N-TYPE GASB GALLIUm ANTImONIDE mAGNETOTRANSPORT CHARACTERIZATION CONDUCTION-BAND HALL mAGNETORESISTANCE DEPENDENCE

Surface Geophysical methods used to Verify the Karst Geological Structure in the Built-up Area:A Case Study of Specific Engineering-Geological Conditions

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Acta Geologica Sinica(English Edition) 2021年第5期95卷 1763-1770页

作者： Rene PUTISKA marian mARSCHALKO isik YILmAZ Dominik NIEmIEC CHENG Xianfeng Ivan DOSTAL Jan KUBAC Comenius University Faculty of Natural SciencesDepartment of Applied and Environmental GeophysicsIlkovičova 6BratislavaSlovakia VSB-Technical University of Ostrava Faculty of Mining and GeologyInstitute of Geological Engineering17 listopadu1570833OstravaCzech Republic Cumhuriyet University Faculty of EngineeringDepartment of Geological Engineering58140 SivasTurkey Yunnan Land and Resources Vocational College Kunming 652501China

This article presents a research study of complex limestone karst engineering-geological conditions in the municipality Valaskanear Banska Bystrica in *** aim of the study is to demonstrate the impossibility of spatial identification of cave spaces using surface geophysical methods due to the specific engineering-geological conditions of a thick surface layer of anthropogenic fill containing highly heterogeneous anthropogenic *** maximum thickness is 3 *** specificific condition of the study area is its location in the built-up area,due to which the applicability of geophysical methods was *** article contains methodological recommendations to be used in analogous geological conditions with karst structures topped with anthropogenic fill,which complicates the identification of cave *** recommended solution herein is the identification of the cave system using underground mapping of the karst and its projection onto the surface for which surface geophysical methods have been combined.

关键词： karst engineering geology limestone dolomite anthropogenic fill complicated engineering-geological conditions geophysical study

Combination of allopurinol and hyperbaric oxygen therapy:A new treatment in experimental acute necrotizing pancreatitis?

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World Journal of Gastroenterology 2007年第46期13卷 6203-6207页

作者： Bilgin Comert Ahmet Turan isik Sezai Aydin Ergun Bozoglu Bulent Unal Salih Deveci Nuket mas Esref Cinar mehmet Refik mas Division of Intensive Care Departments of Internal MedicineGulhane School of MedicineAnkara 06018Turkey Division of Geriatric medicine Department of Internal MedicineGulhane School of MedicineAnkara 06018Turkey Department of Surgery Guven HospitalA.AyranciAnkara 06018Turkey Department of Surgery Numune Training HospitalSihhiyeAnkara 06018Turkey Department of Pathology Gulhane School of MedicineAnkara 06018Turkey Department of Anatomy Medical FacultyBaskent UniversityAnkara 06018Turkey Department of Infection Disease Gulhane School of MedicineAnkara 06018Turkey Department of Internal medicine Gulhane School of MedicineAnkara 06018Turkey

AIm： To investigate the individual and combined effects of allopurinol and hyperbaric oxygen （HBO） therapy on biochemical and histopathological changes, oxidative stress, and bacterial translocation （BT） in the experimental rat acute pancreatitis （AP）. mETHODS： Eighty-five Sprague-Dawley rats were included in the study. Fifteen of the eighty-five rats were used as controls （sham, Group I ）. AP was induced via intraductal taurocholate infusion in the remaining seventy rats. Rats that survived to induction of acute necrotizing pancreatitis were randomized into four groups. Group H received saline, Group m allopurinol, Group IV allopurinol plus HBO and Group v HBO alone. Serum amylase levels, oxidative stress parameters, BT and histopathologic scores were determined. RESULTS： Serum amylase levels were lower in Groups Ⅲ, Ⅳ and v compared to Group H （974 ± 110, 384 ± 40, 851 ＋ 56, and 1664 Ⅳ 234 U/L, respectively, P 〈 0.05, for all）. Combining the two treatment optionsrevealed significantly lower median [25-75 percentiles] histopathological scores when compared to individual administrations （13 [12.5-15] in allopurinol group, 9.5 [7-11.75] in HBO group, and 6 [4.5-7.5] in combined group, P 〈 0.01）. Oxidative stress markers were significantly better in all treatment groups compared to the controls. Bacterial translocation into the pancreas and mesenteric lymph nodes was lower in Groups m, iV and v compared to Group H （54%, 23%, 50% vs 100% for translocation to pancreas, and 62%, 46%, 58% vs 100% for translocation to mesenteric lymph nodes, respectively, P 〈 0.05 for all）. CONCLUSION： The present study confirms the benefit of HBO and allopurinol treatment when administered separately in experimental rat AP. Combination of these treatment options appears to prevent progression of pancreatic injury parameters more effectively.

关键词： Experimental pancreatitis AIIopurinol Hyperbaric oxygen

Pegylated interferon-alpha plus taurine in treatment of rat liver fibrosis

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World Journal of Gastroenterology 2007年第23期13卷 3237-3244页

作者： Ilker Tasci mehmet Refik mas Sevil Atalay Vural Salih Deveci Bilgin Comert Gunay Alcigir Nuket mas Cemal Akay mithat Bozdayi Cihan Yurdaydin Hakan Bozkaya Ozden Uzunalimoglu Ahmet Turan isik Harun m Said Department of Internal medicine Gulhane School of Medicine Ankara 06018 Turkey Department of Pathology Veterinarian Faculty Ankara University Ankara Turkey Department of Pathology Gulhane School of Medicine Ankara 06018 Turkey Department of Anatomy Baskent University Ankara Turkey Institute for Hepatology Ankara University Ankara Turkey Department of Radiation Oncology Medical Faculty University of Würzburg Wiürzburg Germany 不详

AIm: To investigate the antif ibrotic effects of peginterferon- alpha 2b and taurine on oxidative stress markers and hepatocellular apoptosis. mETHODS: Sixty rats with CCl4-induced liver fibrosis were divided into 4 groups (n = 15). Group 1 was left for spontaneous recovery (SR). Groups 2-4 received peginterferon-alpha 2b, taurine, and their combination, respectively, for four weeks. Histological f ibrosis scores, histomorphometric analysis, tissue hydroxyproline, tissue mDA, GPx and SOD activities were determined. Activated stellate cells and hepatocellular apoptosis were also evaluated. RESULTS: The degree of f ibrosis decreased in all treatment groups compared to spontaneous recovery group. Taurine alone and in combination with peginterferon-alpha 2b reduced oxidative stress markers, but peginterferon-alpha 2b alone did not. Apoptotic hepatocytes and activated stellate cells were higher in groups 2-4 than in group 1. Combined taurine and peginterferon-alpha 2b further reduced fibrosis and increased activated stellate cell apoptosis, but could not improve oxidative stress more than taurine ***: Peginterferon-alpha 2b exerts anti- f ibrotic effects on rat liver fibrosis. It seems ineffective against oxidative stress in vivo. Peginterferon-alpha 2b in combination with taurine seems to be an antif ibrotic strategy.

关键词： Liver fibrosis Liver cirrhosis Pegylated interferons Taurine Oxidative stress Hepatic stelate cells Apoptosis malondialdehyde Glutathione peroxidase Superoxide dismutase

An investigation of 10 Y-STR loci and the detection of specific haplotype frequencies in Turkish population

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American Journal of molecular Biology 2011年第2期1卷 114-121页

作者： Aydin Rüstemoglu Güvem Gümüs Akay Halil Gürhan Karabulut Ahmet Kadikiran isik Bokesoy Gaziosmanpasa University Faculty of MedicineDepartment of Medical BiologyTokatTurkey Ankara University Brain Studies Application and Research CenterAnkaraTurkey Ankara University Faculty of MedicineDepartment of Medical GeneticsAnkaraTurkey Ankara University Faculty of ScienceDepartment of Molecular BiologyAnkaraTurkey

This study is to survey 10 Y-STR loci in 241 males from Turkey. In this study, the 241 healthy and unrelated males living in different parts of Turkey for at least three generations were included. Genomic DNAs were isolated from peripheral blood samples by standard phenol-chloroform extraction method. 10 Y-STR loci including DYS19, DYS385a/b, DYS388, DYS389I/II, DYS390, DYS391, DYS392, DYS393, and YCAIIa/b were analyzed by using PCR and denaturing PAGE. Allele frequencies, gene diversities and haplotype frequencies were analyzed. Gene diversity per locus varied from 0.5788 (DYS388) to 0.8903 (DYS385a/b). The numbers of haplotypes in minHt recommended by YCC and Ht10 have been 208 and 186, respectively. When our minHt haplotypes frequencies compared with the other seven populations, we have found statistically significant differences between our results and other populations (P 0.05). We suggest that an alternative haplotype designated as aHt maybe alternative to minHt in respect of its Y-STR content with the highest gene diversity value. The aHt haplotype has found a higher discriminatory potential than minHt haplotype with a better Pd combined value (0.9999936 vs 0.9999836) and has higher average gene diversity per locus (0.7834 vs 0.7518) in Turkish population. aHt haplotype can be proposed as an alternative to minHt in paternity testing and forensic medicine applications involving Turkish male population. This study has also provided additional information to the framework of variation involving 10 Y-STR loci as well as a further contribution to the Y-STR database for Turkish male population.

关键词： Y Chromosome Y-STR Polymorphism Ha- plotype Turkey

The New Pest Scatella tenuicosta Collin （Diptera： Ephydridae） for Spirulina Ponds

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Journal of Agricultural Science and Technology 2010年第5期4卷 83-86页

作者： G. Aydin O. isik L. Hizarci Y. Bulut H. Oguz m. Koksal Atabey Vocational Scholl Suleyman Demirel University Atabey 32670 Isparta Turkey Aqua Cuylture Department Cukurova University Balcali 01330 Adana Turkey

The goal of this study was to discover Scatella tenuicosta Collin （Diptera： Ephydridae） for the first time as a pest on blue-green algae Spirulina platensis. This algae has been recognized as a very important commercial product in the world today and as one of the most promising ones among the other microscopic algae due to its richness in polyunsaturated fatty acids, as well as in gamma-linolenic acid （GLA）, and in pigments including phycocyanin, myxoxanthophyll and zeaxanthin. Both immature and adult development stages ofS. tenuicosta have been studied under the temperature of 15±2℃. The development times for eggs, larval stages, including first, second, and third one, and for pupae as well as for adults were found to be 1.4, 1.0, 1.1, 1.1, 3.0 and 8.7 respectively. Some pest control practices ofS. tenuicosta on S. platensis have been also examined in this study.

关键词： Ephydridae control blue-green algae Spirulinaplatensis.

实时超声弹性成像对股骨软骨应变率的测量:初步结果

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国际医学放射学杂志 2015年第3期 298-299页

作者： N.Cay A.Ipek C.isik O.Unal m.G.Kartal H.Arslan 牛陆 Department of Radiology Faculty of Medicine Ataturk Training and Research Hospital Yildirim Beyazit University

目的评估实时超声弹性成像对股骨软骨应变率的测量。方法对25例mRI诊断有股骨软骨病变的病人(实验组)进行实时超声弹性成像,并选取25例mRI正常者(对

关键词：实时超声弹性成像中位数实验组试验组应变速率应变率软骨病变骨软骨