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Patterning of Metal Halide Perovskite Thin Films and Functional Layers for Optoelectronic Applications

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Nano-Micro Letters 2023年第10期15卷 494-513页

作者： Jin‑Wook Lee Seong min kang Department of Nano Engineering and Department of Nano Science and Technology SKKU Advanced Institute of Nanotechnology(SAINT)Sungkyunkwan UniversitySuwonRepublic of Korea SKKU Institute of Energy Science and Technology(SIEST) Sungkyunkwan UniversitySuwonRepublic of Korea Department of Mechanical Engineering Chungnam National UniversityDaejeon 34134Republic of Korea

In recent years,metal halide perovskites have received significant attention as materials for next-generation optoelectronic devices owing to their excellent optoelectronic *** unprecedented rapid evolution in the device performance has been achieved by gaining an advanced understanding of the composition,crystal growth,and defect engineering of *** device performances approach their theoretical limits,effective optical management becomes essential for achieving higher *** this review,we discuss the status and perspectives of nano to micron-scale patterning methods for the optical management of perovskite optoelectronic *** initially discuss the importance of effective light harvesting and light outcoupling via optical ***,the recent progress in various patterning/texturing techniques applied to perovskite optoelectronic devices is summarized by categorizing them into top-down and bottom-up ***,we discuss the perspectives of advanced patterning/texturing technologies for the development and commercialization of perovskite optoelectronic devices.

关键词： Perovskites Optoelectronics Light outcoupling Light harvesting Patterning

Application of low-temperature thermochronology on ore deposits preservation framework in South China:a review

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Acta Geochimica 2022年第2期41卷 165-184页

作者： kang min Jian-Feng Gao State Key Laboratory of Ore Deposit Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China University of Chinese Academy of Sciences Beijing 100049China

South China can be divided into four metallogenic belts:The Middle-Lower Yangtze Metallogenic Belt(MLYB),Qinzhou-Hangzhou Metallogenic Belt(QHMB),Nanling Metallogenic Belt(NLMB),and Wuyi Metallogenic Belt(WYMB).The major mineralization in the four metallogenic belts is granite-related Cu–Au–Mo and porphyrite Fe-apatite,porphyry Cu(Au),and epithermal Pb–Zn–Ag,hydrothermal Cu–Au–Pb–Zn–Ag,and granite-related skarn-type and quartz-veins W–Sn,***-temperature thermochronology,including fissiontrack and U-Th/He dating,has been widely used to constrain tectonic thermal evolution and ore deposits *** fission-track annealing and He diffusion kinetics in accessory minerals,such as zircon and apatite,is essential for dating and *** this study,previous zircon fission-track(ZFT)and apatite fission-track(AFT)ages in South China were *** result shows that the ZFT ages are mainly concentrated at140–90 Ma,and the AFT ages are mainly distributed at70–40 *** age distribution and inversion temperature–time paths reveal heterogeneous exhumation histories in South *** MLYB experienced Late CretaceousCenozoic extremely slow exhumation after rapid cooling in the Early *** northern QHMB(*** southern Anhui province to the Hangzhou Bay)had a relatively faster rate of uplifting and denudation than the southern QHMB in the ***,the northern QHMB rapidly exhumed,while the continuously slow exhumation operated the southern QHMB in the *** southern NLMB had a more rapid cooling rate than the northern NLMB during the Cretaceous time,and the whole NLMB experienced rapid cooling in the Cenozoic,except that the southern Hunan province had the most rapid cooling *** WYMB possibly had experienced slow exhumation since the Late *** exhumation thickness of the four metallogenic belts since90 Ma is approximately calculated as follows:the MLYB≤3.5 km,the northern QHMB concentrated at

关键词： Low-temperature thermochronology Fissiontrack annealing and He diffusion kinetics South China Exhumation history Deposits preservation

Implications of recent neoadjuvant clinical trials on the future practice of radiotherapy in locally advanced rectal cancer

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World Journal of Gastroenterology 2023年第6期29卷 1011-1025页

作者： min Kyu kang Department of Radiation Oncology School of MedicineKyungpook National UniversityDaegu 41944South Korea Department of Radiation Oncology Kyungpook National University Chilgok HospitalDaegu 40414South Korea

Over the last two decades, the standard treatment for locally advanced rectal cancer(LARC) has been neoadjuvant chemoradiotherapy plus total mesorectal excision followed by adjuvant chemotherapy. Total neoadjuvant treatment(TNT) and immunotherapy are two major issues in the treatment of LARC. In the two latest phase Ⅲ randomized controlled trials(RAPIDO and PRODIGE23), the TNT approach achieved higher rates of pathologic complete response and distant metastasis-free survival than conventional chemoradiotherapy. Phase I/II clinical trials have reported promising response rates to neoadjuvant(chemo)-radiotherapy combined with immunotherapy. Accordingly, the treatment paradigm for LARC is shifting toward methods that increase the oncologic outcomes and organ preservation rate. However, despite the progress of these combined modality treatment strategies for LARC, the radiotherapy details in clinical trials have not changed significantly. To guide future radiotherapy for LARC with clinical and radiobiological evidence, this study reviewed recent neoadjuvant clinical trials evaluating TNT and immunotherapy from a radiation oncologist’s perspective.

关键词： Rectal cancer Neoadjuvant therapy Radiotherapy Total neoadjuvant treatment Immunotherapy

Analysis of a new 5-phase bearingless induction motor

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第8期8卷 1311-1319页

作者： HUANG Jin kang min YANG Jia-qiang School of Electrical Engineering Zhejiang University Hangzhou 310027 China

This paper addresses the bearingless motor with a single set of multiphase windings. The interaction between M and M±1 pole-pair magnetic fields produces radial force. Based on this principle,a bearingless machine is obtained. Conventional bearingless machine has dual windings,levitation windings and torque windings,which produce the two magnetic fields. In the proposed bearingless motor,the two needed magnetic fields are produced by feeding two groups of currents to a single set of multiphase windings. Taking a 5-phase induction motor as example,the inductance matrices,considering air gap eccentricity,are calculated with the modified winding function method. The radial force analytical model is deduced by virtual displacement,and its results are validated by FEA. The mathematical model of the new bearingless machine is set up,and the simulation results verified the feasibility of this novel bearingless motor.

关键词： Air-gap-flux-oriented control Bearingless motor Multiphase Radial force Single set of windings Modified winding function method

Photophysical,optical,and photocatalytic hydrogen production properties of layered-type BaNb_(2-x)Ta_(x)P_(2)O_(11)(x=0,0.5,1.0,1.5,and 2.0)compounds

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Journal of Materials Science & Technology 2022年第3期98卷 26-32页

作者： min Je kang Gill Sang Han In Sun Cho Department of Materials Science and Engineering Ajou UniversitySuwon 16499Republic of Korea Department of Energy Systems Research Ajou UniversitySuwon 16499Republic of Korea School of Advanced Materials Science and Engineering Sungkyunkwan UniversitySuwon 16419Republic of Korea

Layered-type metal phosphates of BaNb_(2-x)Ta_(x)P_(2)O_(11)(x=0,0.5,1.0,1.5,and 2.0)were synthesized using a solid-state reaction *** photophysical,optical,and photocatalytic hydrogen production properties of the resulting powders were investigated for the first ***-pure and homogeneous powders with irregular morphologies were obtained at a calcination temperature of 1200℃.As the Ta content increased,the interlayer distance along the c-axis increased by up to 0.14%.Additionally,the optical bandgap values increased from 3.32 to 3.59 *** energy band positions were estimated from the Mott–Schottky ***_(2)P_(2)O_(11)(x=0)exhibited the lowest conduction band edge position(-0.14 V *** normal hydrogen electrode,NHE),which is located above the water reduction potential(0.0 V ***).In comparison,BaTa_(2)P_(2)O_(11)(x=2.0)exhibited the highest conduction band edge position(-0.29 V ***),comparable to that of TiO_(2).The photocatalytic activity for hydrogen produced from splitting water was measured under ultraviolet light ***,BaTa_(2)P_(2)O_(11)exhibited the highest activity(7.3μmol/h),which was 15 and 10 times larger than BaNb_(2)P_(2)O_(11)(0.5μmol/h)and nano-TiO_(2)(0.7μmol/h),*** activity of BaTa_(2)P_(2)O_(11)increased to 24.4μmol/h after deposition of the NiO_(x)co-catalyst(1 wt.%),which remained stable during continuous operation(~35 h).

关键词： BaNb_(2)P_(2)O_(11) BaTa_(2)P_(2)O_(11) Layered crystal structure Bandgap Band edge positions Photocatalytic hydrogen production

Existence and Uniqueness of Solutions for two Classes of Functional Equations Arising in Dynamic Programming

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Acta Mathematicae Applicatae Sinica 2007年第2期23卷 195-208页

作者： Ze-qing Liu Shin min kang Department of Mathematics Liaoning Normal University P.O. Box 200 Dalian 116029 China Department of Mathematics and The Research Institute of Natural Science Gyeongsang National UniversityChinju 660-701 Korea

In this paper we establish the existence, uniqueness and iterative approximation of solutions for two classes of functional equations arising in dynamic programming of multistage decision processes. The results presented here extend, and unify the corresponding results due to Bellman, Bhakta and Choudhury, Bhakta and Mitra, Liu and others.

关键词： Functional equation dynamic programming fixed point successive approximation nonexpansive mapping

Weak and Strong Convergence for Fixed Points of Asymptotically Non-expansive Mappings

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Acta Mathematica Sinica,English Series 2004年第6期20卷 1009-1018页

作者： Ze Qing LIU Shin min kang Department of Mathematics Liaoning Normal University Department of Mathematics and Research Institute of Natural Science Gyeongsang National University

A few weak and strong convergence theorems of the modified three-step iterative sequence with errors and the modified Ishikawa iterative sequence with errors for asymptotically non-expansive mappings in any non-empty closed convex subsets of uniformly convex Banach spaces are established. The results presented in this paper substantially extend the results due to Chang (2001), Osilike and Aniagbosor (2000), Rhoades (1994) and Schu (1991).

关键词： Asymptotically non-expansive mapping Fixed point Modified three-step iterative sequence with errors Modified Ishikawa iterative sequence with errors Uniformly convex Banach space Opial’s condition Weak convergence Strong convergence

APPROXIMATION OF COMMON SOLUTIONS OF VARIATIONAL INEQUALITIES VIA STRICT PSEUDOCONTRACTIONS

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Acta Mathematica Scientia 2012年第4期32卷 1607-1618页

作者： Sun Young Cho Shin min kang Department of Mathematics and RINS Gyeongsang National UniversityJinju 660-701 Korea

In this paper, a convex feasibility problem is considered. We construct an iterative method to approximate a common element of the solution set of classical variational inequalities and of the fixed point set of a strict pseudocontraction. Strong convergence theorems for the common element are established in the framework of Hilbert spaces.

关键词： fixed point inverse-strongly monotone mapping nonexpansive mapping variational inequality

Preventive effect of Angelica gigas Nakai extract oral administration on dry eye syndrome

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Asian Pacific Journal of Tropical Medicine 2018年第6期11卷 369-375页

作者： Younje Lee kang min Kim Jae Seon kang Department of Pharmacy Kyungsung UniversityBusanRepublic of Korea Department of Pharmaceutical Science and Technology Kyungsung UniversityBusanRepublic of Korea

Objective:To identify the preventive effect of Angelica gigas Nakai(*** Nakai)extract in a benzalkonium chloride-induced dry eye ***:A total of 28 mice were divided into 4 groups:1)Normal group:mice received only saline;2)positive control group:mice received an oral solution without *** Nakai extract at 10:00 *** 0.2%benzalkonium chloride eye drops at 2:00 p.m.;3)*** Nakai extract(5 mg);4)*** Nakai extract(10 mg).Both group 3)and group 4)received an oral solution with *** Nakai extract(either 5 mg/kg or 10 mg/kg)at 10:00 *** 0.2%benzalkonium chloride eye drops at2:00 *** 14 d of follow-up,tear volume measurement and fluorescein staining were evaluated for the recovery effects on ocular *** analysis was conducted by hematoxylin and eosin *** on ocular epithelium layer was examined using terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling *** of TNF-a was also measured using western blot ***:An increase in both the tear volume and the sustained fluorescein staining scores was observed,demonstrating the preventive effects of *** Nakai *** changes such as irregularity of the epithelial layer and corneal epithelial cell death were inhibited in the *** Nakai extract *** of TNF-αmoderately declined;however,its expression level was still higher,compared to the normal ***:Results from the current study show the significant preventive effect of *** Nakai extract in a mouse model of benzalkonium chloride-induced dry eye ***,*** Nakai extract could be considered as an oral preventive agent for dry eye syndrome in the future.

关键词： Angelica gigas Nakai Benzalkonium chloride Dry eye syndrome