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Substrate evolution to Microstructural and Optoelectrical Properties of evaporated CdS Thin Films Correlated with elemental Composition

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Acta Metallurgica Sinica(english Letters) 2021年第9期34卷 1307-1316页

作者： anuradha Purohit Himanshu S.L.Patel S.Chander M.S.Dhaka Department of Physics Mohanlal Sukhadia UniversityUdaipur 313001India Department of Chemical Sciences Indian Institute of Science Education and Research.Mohali 140306India Centre for Advanced Study in Physics Department of PhysicsPanjab UniversityChandigarh 160014India

A typical high-e fficiency solar cell device needs the best lattice matching between different constituent layers to mitigate the open-circuit voltage loss. In the present work, the physical properties of CdS thin films are investigated where films with 100 nm thickness were fabricated on the different types of substrates viz. soda–lime glass, indium-doped tin oxide(ITO)-and fl uorine-doped tin oxide(FTO)-coated glass substrates, and silicon wafer using electron beam evaporation. The X-ray diffraction patterns confirmed that deposited thin films showed cubic phase and had(111) as predominant orientation where the structural parameters were observed to be varied with nature of substrates. The ohmic behaviour of the CdS films was disclosed by current–voltage characteristics, whereas the scanning electron microscopy micrograph revealed the uniform deposition of the CdS films with the presence of round-shaped grains. The elemental analysis confirmed the CdS films deposition where the Cd/S weight percentage ratio was changed with nature of substrates. The direct energy band gap was observed in the 1.63–2.50 ev range for the films grown on different substrates. The investigated properties of thin CdS layers demonstrated that the selection of substrate(in terms of nature) during device fabrication plays a crucial role.

关键词： CdS thin films Substrate evolution e-beam evaporation Microstructural properties Optoelectrical properties

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Quantum-dot microlasers based on whispering gallery mode resonators

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Light(Science & Applications) 2021年第5期10卷 785-795页

作者： A.e.Zhukov N.v.Kryzhanovskaya e.l.Moiseev M.v.Maximov Laboratory of quantum optoelectronics National Research University Higher School of EconomicsKantemirovskaya 3ASt.Petersburg 194100Russia Nanophotonics laboratory Alferov UniversityKhlopina 8/3St.Petersburg 194021Russia

The subject of this paper is microlasers with the emission spectra determined by the whispering gallery *** to the total internal reflection of light on the sidewalls,a high Q-factor is achieved until the diameter is comparable to the *** light emission predominantly occurs in the plane of the structure,which facilitates the microlaser integration with other *** focus on microdisk lasers with various types of the In(Ga)As quantum dots(QDs).Deep localization of charge carriers in spatilly separated regions suppresses the lateral diffusion and makes it possible to overcome the undesirable effect of non-adiative recombination in deep ***,using conventional epitaxial structures and relatively simple post-growth processing methods,it is possible to realize small microlasers capable of operating without temperature stabilization at elevated *** low sensitivity of QDs to epitaxial and manufacturing defects allows fabricating microlasers using IIv heterostructures grown on silicon.

关键词： Quantum mode overcome

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Influence of Ti Powder Characteristics on Combustion Synthesis of Porous NiTi Alloy

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Journal of Materials Science & Technology 2002年第3期18卷 248-250页

作者： YonghuaLI v.e.Gunther 等 InstituteofMetalResearch ChineseAcademyofScienceskShenyang110016China ScientificResearchInstituteofMedicalMaterialsandShapeMemoryImplats Tomsk634034Russia

Porous NiTi shape memory alloy (SMA) is a novel biomedical material used for human hard tissue implant. The influence of elemental titanium powder characteristics such as powder morphology, particle size and specific surface area (SSA) on the minimal ignition temperature, combustion temperature and final product of porous NiTi SMA fabricated by combustion synthesis method was investigated in this paper by scanning electron microscopy (SeM) and laser diffraction. The preliminary data indicated that the titanium powder characteristics had a strong effect on combustion synthesis of porous NiTi SMA.

关键词： Porous NiTi shape memory alloy Combustion synthesis Titanium powder characteristics

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Determining absolute value of thermal neutron flux density based on monocrystalline silicon in nuclear reactors

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Nuclear Science and Techniques 2022年第7期33卷 133-138页

作者： v.A.varlachev e.G.emets Yu-Chen Mu e.A.Bondarenko v.A.Govorukhin National Research Tomsk Polytechnic University Tomsk634050Russia

A new type of neutron detector based on monocrystalline Si is developed to measure the fluence and flux density of thermal and fast *** principle of this detector is based on the relationship between changes in electrical conductivity and neutron fluence during ***,the absolute values of thermal neutron fluence and flux density are measured in a facile manner with high *** with activation methods,our method not only possesses a similar accuracy,but also demonstrates superior application potential for the investigation of neutron fields in nuclear reactors owing to its suitable half-life.

关键词： Thermal neutron Neutron detector Neutron flux density Cadmium difference methods

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enhancing perianal disease management with integrated physical and psychological approaches

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World Journal of Clinical Cases 2025年第2期13卷 59-63页

作者： Uchenna e Okpete Haewon Byeon Department of Digital Anti-aging Healthcare(BK21) Inje UniversityGimhae 50834South Korea

This article provides a comprehensive analysis of the study by Hou et al,focusing on the complex interplay between psychological and physical factors in the postoperative recovery(POR)of patients with perianal *** study sheds light on how illness perception,anxiety,and depression significantly influence recovery *** et al developed a predictive model that demonstrated high accuracy in identifying patients at risk of poor *** article explores the critical role of pre-operative psychological assessment,highlighting the need for mental health support and personalized recovery plans in enhancing POR quality.A multidisciplinary approach,integrating mental health professionals with surgeons,anesthesiologists,and other specialists,is emphasized to ensure comprehensive care for *** study’s findings serve as a call to integrate psychological care into surgical practice to optimize outcomes for patients with perianal diseases.

关键词： Perianal disease Post-operative recovery Anxiety Depression Pain management emotional well-being Multidisciplinary approach

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Brain-derived neurotrophic factor alterations and cognitive decline in schizophrenia:Implications for early intervention

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World Journal of Psychiatry 2025年第1期15卷 189-193页

作者： Uchenna e Okpete Haewon Byeon Department of Digital Anti-aging Healthcare(BK21) Inje UniversityGimhae 50834South Korea

This manuscript explores the recent study by Cui et al which assessed the interplay between inflammatory cytokines and brain-derived neurotrophic factor(BDNF)levels in first-episode schizophrenia *** study revealed that higher levels of interleukin-6 and tumor necrosis factor-αcorrelated with reduced BDNF levels and poorer cognitive *** is a severe psy-chiatric disorder impacting approximately 1%of the global population,charac-terized by positive symptoms(hallucinations and delusions),negative symptoms(diminished motivation and cognitive impairments)and disorganized thoughts and *** research highlights the role of BDNF as a potential biomarker for early diagnosis and therapeutic *** findings from Cui et al’s study suggest that targeting neuroinflammation and enhancing BDNF levels may improve cognitive *** treatment approaches involve a com-bination of pharmacological and non-pharmacological interventions tailored to individual patient ***,monitoring cognitive and neuroinflammatory markers is essential for improving patient outcomes and quality of ***-quently,this manuscript highlights the need for an integrated approach to schizo-phrenia management,considering both clinical symptoms and underlying neuro-biological changes.

关键词： Schizophrenia Cognitive impairment Neuroinflammatory markers Brain-derived neurotrophic factor Interleukin Personalized treatment

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Unravelling the Complex Networks of Social Physics:exploring Human Behavior,Big Data,and Distributed Systems

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Journal of Social Computing 2024年第2期5卷 165-179页

作者： Subrata Paul Dhritiman Mukherjee Anirban Mitra anuradha Mitra Pushan Kumar Dutta the Department of Computer Science and engineering Brainware UniversityKolkata 700125India. the Department of Computer Science and engineering Amity University KolkataKolkata 700135India the Department of Management University of LiverpoolLiverpoolL697ZXUK the Department of electronics and Communication engineering Amity University KolkataKolkata 700135India

Networks form an integral part of our daily lives, comprising structures known as nodes connected via ties. These networks exhibit a complex interplay of random and structured features. We encounter networks regularly in our daily activities, whether it is logging into websites, commuting by train, going to work, or attending school. Networks are prevalent in various academic disciplines and practical applications, spanning biology, physics, engineering, social science, and numerous other fields. The early 21st century has witnessed a rapid expansion of techniques facilitating human interaction, significantly impacting behavior and social bonding in both urban and rural settings. The availability and accessibility of extensive population datasets have spurred ongoing research into understanding and shaping human inclinations and sociological phenomena in unconventional ways. This review delves into the nuanced aspects of social physics, exploring the rationale behind choosing this research topic, various conceptual frameworks, categorizations, and distinctions between machine learning and deep learning. The article briefly outlines the advantages of leveraging big data in social physics, highlighting its transformative potential. Lastly, the authors provide insights into several applications of social physics in subsequent sections, offering a glimpse into its real-world implications.

关键词： networks social physics machine learning deep learning social science

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effect of synthesis conditions and surrounding medium on luminescence properties of YvO_4:eu^(3+) nanopowders

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Journal of Rare earths 2015年第2期33卷 129-134页

作者： e.v.Golyeva D.v.Tolstikova I.e.Kolesnikov M.D.Mikhailov St.Petersburg State Polytechnical University St.Petersburg 195251 Russia Scientific and Technological Institute of Optical Material Science VNTs S.I.Vavilov State Optical InstituteSt.Petersburg 192171 Russia St.Petersburg State University St.Petersburg 199034 Russia

Nanocrystalline yttrium vanadate doped with europium ions powders were synthesized via sol-gel method based on decomposition of metal-polymer complex. X-ray diffraction analysis showed that samples had pure tetragonal phase without any impurities. Scanning electron microscopy and static light scattering technique were used to study morphology and size of prepared nanoparticles. Average diameter of the nanoparticles was about 40 nm. The changes in structural and luminescence properties were observed as a function of the first and second calcination temperature. The optimal conditions for synthesis of nanoparticles were determined as Т1=500℃, t1=1 h; Т2=950 ℃, t2=1.5 h. The effect of different media surrounding the nanoparticles on their luminescence properties and lifetime was investigated and discussed in terms of effective refractive index. It was found that the observed lifetime of YvO4：eu^3＋ 5 at.% nanophosphor was decreased from 0.64 ms in air（nmed=1） to 0.45 ms in chalcogenide glass As39S61（nmed=2.39）.

关键词： nanopowders rare earths luminescence effective refractive index lifetime

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ALTeRATIONS IN AUTOFLUOReSCeNCe SIGNAL FROM RAT SKIN eX vIvO UNDeR OPTICAL IMMeRSION CLeARING

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Journal of Innovative Optical Health Sciences 2010年第3期3卷 147-152页

作者： e.v.MIGACHevA A.B.PRAvDIN v.v.TUCHIN Saratov State University 83 Astrakhanskaya str.410012 SaratovRussia

For the first time,the changes in autofluorescence spectra of ex vivo rat skin have been experimentally investigated using the combination of fluorescence spectroscopy and optical immersion *** glucose,glycerol and propylene glycol solutions were used as clearing *** optical clearing was performed from the dermal side of skin imitating the in vivo injection of clearing agent under the dermal *** this contribution,the common properties of autofluorescence variation during optical immersion clearing were *** tendency of autofluorescence signal to decrease with reduction of scattering in tissue was noticed and discussed in ***,the differences in the shape of spectral curves under application of different clearing agents showed that optical clearing affects the autofluorescence properties of tissue differently depending on the type of clearing *** results obtained are useful for the understanding of tissue optical clearing mechanisms and for improving techniques such as fluorescence spectroscopy.

关键词： Autofluorescence spectra fluorescence spectroscopy rat skin tissue optical clearing clearing agents

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Comparative study on occurrence of class A and class Cβ-lactamase genes and their co-occurrence in Indian enterobacteriaceae during years 2009 and 2010

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Asian Pacific Journal of Tropical Medicine 2011年第10期4卷 764-768页

作者： anuradha Singh Mohd Shahid Farrukh Sobia Umesh Haris M Khan Section of Antimicrobial Agents & Drug Resistance Research and Molecular Biology Department of MicrobiologyJawaharlal Nehru Medical College & HospitalAligarh Muslim UniversityAligarh-202002Uttar PradeshIndia Department of Medical Microbiology Immunologyand Infectious DiseasesCollege of Medicine & Medical SciencesArabian Gulf UniversityKingdom of Bahrain Department of Microbiology Government Medical CollegeHaldwaniUttrakhandIndia

Objective:To determine the occurrence of class A and class Cβ-Iactamase genes and their cooccurrence in Indian ***:52 third generation cephalosporin resistant isolates were phenotypically detected by combination disk method and screened by PCR to identify class A and class C typeβ-lactamase ***:Of the 52 isolates,94.2%（49） were found harboring any of the bla?,blaCTX-M,blaSHv and blaTeM were present in 82.6%（43/52）, 59.6%（31/52）,and 42.3%（22/52） isolates,*** the 49 eSBL positive isolates 57.1% （28/49） showed co-occurrence of blaampCwith bla?.On the contrary,the collection from 2009 showed their co-occurrence in 81.4%***:The comparative study shows a downward trend for co-existence of bla? with blaampC from 2009 to *** large scale studies are needed to address the co-occurrence of class A and class Cβ-lactamases in India and the resistance trend occurring over a period of time.

关键词： Class A eSBL Class C eSBL CTX-M AmpC enterobacteriaceae India

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