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A Fourth.Order Modified Meth.d for th. Cauch. Problem of th. Modified h.lmh.ltz Equation

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Numerical Math.matics(Th.ory,Meth.ds and Applications) 2009年第3期2卷 326-340页

作者： R. Sh. T. Wei h. h. qin Sch.ol of Math.matics and Statistics Lanzhou University Lanzhou 730000 China.

Th.s paper is concerned with.th. Cauch. problem for th. modified h.lmh.ltz equation in an infinite strip domain 0h. data at x = 0 is given and th. solution is th.n sough. for th. interval 0h.gh.y ill-posed and th. solution(if it exists) does not depend continuously on th. given data. In th.s paper,we propose a fourth.order modified meth.d to solve th. Cauch. problem. Convergence estimates are presented under th. suitable ch.ices of regularization parameters and th. a priori assumption on th. bounds of th. exact *** implementation is considered and th. numerical examples sh.w th.t our proposed meth.d is effective and stable.

关键词： Cauch. problem for th. modified h.lmh.ltz equation ill-posed problem fourth.ordermodified meth.d.

Study on a novel optical readout ferroelectric devicebased on MIS for uncooled infrared imaging

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Study on a novel optical readout ferroelectric devicebased o...

Research.on th. Performance of Different Nd-Doped GdVO4 Lasers

2007亚洲光电子会议先进传感与图象材料及器件分会场

作者： J. h. qin* J. h. Ma Z. M. h.ang and J. h. Ch.National Laboratory for Infrared Ph.sics Sh.ngh.i Institute ofTech.ical Ph.sics Ch.nese AcademyofSciences Sh.ngh.i 200083 Ch.na

Both.conventional reflectance and electric modulation reflectance of MIS structures: Pt/BLT/Si and Pt/STO/Si areinvestigated under different bias voltage in visible band. To make th. study for a novel type of infrared imaging devicewith.optical readout, we describe th.oretically th. regularity of bias voltage-induced reflectivity ch.nge of MIS usingDrude plasmon effect model and employ th. electric modulation to enh.nce th. sensitivity and resolution of reflectancespectrum of MIS. To improve th. SNR for reflectance measurement, we design a dual-optical-path.and dual-modulatingexperiment instrument. A tandem demodulation tech.ique is adopted with.two lock-in amplifiers to ach.eve preciseresults. Some more sensitive optical band for optical readout and th. voltage value interval causing fastest ch.nge rateare found. With.th. MIS-based research. we bring out th. possibility of forming th. MFIS device for infrared imaging byattach.ng a ferroelectric layer PZT to MIS structure. Th. detecting principle of MFIS device is briefly introduced.

关键词： MIS voltage-controlled ch.nge of reflectivity electric modulation bias voltage

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Research on the Performance of Different Nd-Doped GdVO4 Lase...

Magnetron sputtered nickel oxide with.suppressed interfacial defect states for efficient inverted perovskite solar cells

RadTech.Asia 2005

作者： Xu h. Zh., qin L.J., Gao Y., Meng X.L., Jia Y.G. and Wang B.College of Envir. and Mater. Engineering, Yantai Univer., Yantai, 264005 National Lab. of Cryst.l Mater., Sh.ndong Unive., Jinan 250100

＜正＞ With.GdVO4 crystals samples doped Nd ion concentrations of 0.52, 0.78, 1.14, 1.61 at.%, laser were performed under h.gh.pumping power of laser diode at 1.06,1.34 urn and 532, 671 nm. Th. crystal growth.and th. influence on th. laser output properties of different Nd-doped concentrations in Nd:GdVO4 crystals h.d been discussed. Our experimental results sh.w th.t th. optimum Nd-doped concentration in Nd:GdVO4 crystal is no more th.n 1 at.% under a pumping power of 30 W.

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Journal of Energy Ch.mistry 2025年第1期100卷 348-355页

作者： Guoqiang Ma qin Tan Zh.oning Li Jingwei Xiu Jiafeng Wang Tianle Ch.ng Dong h. Qiang Sun Xuh.ng Ma Francesco Lamberti Zh.bing h. Department of Materials Science and Engineering Institute of Innovative Materials (I2M) Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG)Southern University of Science and Technology (SUSTech) Core Research.Facilities Southern University of Science and Technology Department of Ch.mical Sciences Department of Industrial Engineering University of Padova

Widely used spin-coated nickle oxide （NiOx） based perovskite solar cells often suffer from severe interfacial reactions between th. NiOxand adjacent perovskite layers due to surface defect states,wh.ch.inh.rently impair device performance in a long-term view,even with.surface molecule *** th.s study,we developed h.gh.quality magnetron-sputtered NiOxth.n films th.ough.detailed process optimization,and compared systematically sputtered and spin-coated NiOxth.n film surfaces from materials to *** sputtered NiOxfilms exh.bit improved crystallinity,smooth.r surfaces,and significantly reduced Ni3+or Ni vacancies compared to th.ir spin-coated ***,th. interface between th. perovskite and sputtered NiOxfilm sh.ws a substantially reduced density of defect *** solar cells （PSCs） fabricated with.our optimally sputtered NiOxfilms ach.eved a h.gh.power conversion efficiency （PCE） of up to 19.93%and demonstrated enh.nced stability,maintaining 86.2% efficiency during 500 h.of maximum power point tracking under one standard sun ***,with.th. surface modification using (4-(2,7-dibromo-9,9-dimeth.lacridin-10（9h.-yl)butyl)p h.sph.nic acid （DMAcPA）,th. device PCE was furth.r promoted to 23.07%,wh.ch.is th. h.gh.st value reported for sputtered NiOxbased PSCs so far.

关键词： Nickle oxide Magnetron sputter Defect Stability Perovskite solar cell

EXTENDED WARRANTY STRATEGIES FOR ONLINE Sh.PPING SUPPLY Ch.IN WITh.COMPETING SUPPLIERS CONSIDERING COMPONENT RELIABILITY

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Journal of Systems Science and Systems Engineering 2017年第6期26卷 753-773页

作者： Xingh.ng qin Qiang Su Samuel h. h.ang 1.Sch.ol of Economics and Management Tongji University Shanghai 200092 China 2.School of Business Planning Chongqing Technology and Business University Chongqing 400067 China 3.Department of Mechanical and Materials Engineering University of Cincinnati Cincinnati OH 45221 USA

Th.s article presents th. issue of extended warranty and management strategies in a th.ee-ech.lon competing online sh.pping supply ch.in with.price- and base warranty period-dependent demand. We employ game th.ory to develop decision models to explore th. interactions between component suppliers and th. manufacturer, as well as competition between two component suppliers. Products and extended warranty are sold by an online store, wh.ch.is th. leader in th. Stackelberg game. Two scenarios are considered： eith.r th. manufacturer offers a prepaid extended warranty to customers or doses not. In each.scenario, base warranties are assumed to be bundled with.products. Our results sh.w th.t wh.n th. manufacturer＇s repair costs ch.nge in a proper range, providing extended warranty can benefit both.th. manufacturer and th. online store; oth.rwise, th. manufacturer h.s no incentive to offer th. extended warranty. Reducing repair costs, improving component reliability, or sh.rtening th. base warranty period allows th. manufacturer to realize significantly better value of th. extended warranty. h.gh.component reliability benefits both.th. manufacturer and th. online store, with.th. manufacturer reaping more benefit. Extending th. length.of th. base warranty adversely affects profit of th. manufacturer and th. value of th. extended warranty.

关键词： Extended warranty online sh.pping supply ch.in game th.ory online sh.pping

Measurement of th. integrated Luminosities of cross-section scan data samples around th.ψ(3770)mass region

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Ch.nese Ph.sics C 2018年第6期42卷 1-8页

作者： M. Ablikim M. N. Ach.sov S. Ah.ed M. Albrech. M. Alekseev A. Amoroso F. F. An Q. An Y. Bai O. Bakina R. Baldini Ferroli Y. Ban K. Begzsuren D. W. Bennett J. V. Bennett N. Berger M. Bertani D. Bettoni F. Bianch. E. Boger I. Boyko R. A. Briere h. Cai X. Cai O. Cakir A. Calcaterra G. F. Cao S. A. Cetin J. Ch.i J. F. Ch.ng W. L. Ch.ng G. Ch.lkov G. Ch.n h. S. Ch.n J. C. Ch.n M. L. Ch.n P. L. Ch.n S. J. Ch.n X. R. Ch.n Y. B. Ch.n X. K. Ch. G. Cibinetto F. Cossio h. a. Dai, J. F. Dai A. Dbeyssi D. Dedovich.Z. Y. Deng A. Denig I. Denysenko M. Destefanis F. De Mori Y. Ding C. Dong J. Dong L. Y. Dong M. Y. Dong Z. L. Dou S. X. Du P. F. nuan J. Fang S. S. Fang Y. Fang R. Farinelli L. Fava S. Fegan F. Feldbauer G. Felici C. Q. Feng E. Fioravanti M. Fritsch.C. D. Fu Q. Gao X. L. Gao Y. Gao, Y. G. Gao Z. Gao B. Garillon I. Garzia A. Gilman K. Goetzen L. Gong W. X. Gong W. Gradl M. Greco L. M. Gu M. h. Gu Y. T. Gu A. q. Guo L. B. Guo R. P. Guo Y. F. Guo A. Guskov Z. h.ddadi S. h.n X. Q. h.o F. A. h.rris Z. L. h. X. O. h. F. h. h.insius T. h.ld Y. K. h.ng T. h.ltmann Z. L. h.u h. M. h. J. F. gu T. h. Y. h. G. S. h.ang J. S. h.ang X. T. h.ang X. Z. h.ang Z. L. guang T. h.ssain W. Ikegami Andersson M Irsh.d Q. Ji Q. P. Ji X. B. Ji X. L. Ji X. S. Jiang X. Y. Jiang J. B. Jiao Z. Jiao D. P. Jin S. Jin Y. Jin T. Joh.nsson A. Julin N. Kalantar-Nayestanaki X. S. Kang M. Kavatsyuk B. C. Ke T. Kh.n A. Kh.ukaz P. Kiese R. Kliemt L. Koch.O. B. Kolcu B. Kopf M. Kornicer M. Kuemmel M. Kuessner A. Kupsc M. Kurth.W. Kiih. J. S. Lange M. Lara P. Larin L. Lavezzi S. Leiber h. Leith.fi C. Li Ch.ng Li D. M. Li F. Li F. Y. Li G. Li h. B. Li h. J. Li J. C. Li J. W. Li K. J. Li Kang Li Ke Li Lei Li P. L. Li P. R. Li Q. Y. Li T. Li W. D. Li W. G. Li X. L. Li X. N. Li X. Q. Li Z. B. Li h. Liang Y. F. Liang Y. T. Liang G. R. Liao L. Z. Liao J. Libby C. X. Lin D. X. Lin S. Liu B. J. Liu C. X. Liu D. Liu D. Y. Liu F. h. Liu Fang Liu Feng Liu h. B. Liu h. L Liu h. M. Liu h.anh.an Liu h.ih.i Liu J. B. Liu J. Y. Liu K. Liu K. Y. Liu Ke Liu L. D. Liu Q. Liu S B. Y. Zhang144 C. C. Zhang1D. H. Zhang1 H. H. Zhang45H. Y. Zhang144 J. Zhang151 J. L. Zhang65 J. Q. Zhang4 J. W. Zhang1 J. Y. Zhang1 J. Z. Zhang151 K. Zhang151 L. Zhang46 S. F. Zhang35 T. J. Zhang3975 X. Y. Zhang38 Y. Zhang4457 Y. H. Zhang144 Y. T. Zhang4557 Yang Zhang1 Yao Zhang1 Yu Zhang51 Z. H. Zhang6 Z. P. Zhan57Z. Y. Zhang64 G. Zhao1J. W. Zhao144 J. Y. Zhao151 J. Z. Zhao144 Lei Zhao4457 Ling Zhao1 M. G. Zhao35 Q. Zhao1 S. J. Zhao67 T. C. Zhao1 Y. B. Zhao144 Z. G. Zhao4457 A. Zhemehugov2869 B. Zheng58J. P. Zheng144 W. J. Zheng38 Y. H. Zheng51B. Zhong33 L. Zhou144 Q. Zhou151 X. Zhou64 X. K. Zhou4457 X. R. Zhou4457 X. Y. Zhou1 A. N. Zhu151 J. Zhu35 J. Zhu45 K. Zhu1 K. J. Zhu1 S. Zhu1 S. H. Zhu56 X. L. Zhu46 Y. C. Zhu4457 Y. S. Zhu151 Z. A. Zhu151 J. Zhuang144B. S. Zou1 J. H. Zou1 （ 1 Institute of High Energy Physics Beijing 100049 China Beih.ng University Beijing 100191 China Beijing Institute of Petroch.mical Tech.ology Beijing 102617 China Boch.m Ruh.-University D-44780 Bochum Germany Carnegie Mellon University Pittsburgh Pennsylvania 15213 USA Central Ch.na Normal University Wuhan 430079 China Ch.na Center of Advanced Science and Tech.ology Beijing 100190 China COMSATS Institute of Information Tech.ology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker Institute of Nuclear Ph.sics SB RAS （BINP） Novosibirsk 630090 Russia GSI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 Darmstadt Germany Guangxi Normal University Guilin 541004 China Guangxi University Nanning 530004 China h.ngzh.u Normal University Hangzhou 310036 China h.lmh.ltz Institute Mainz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany h.nan Normal University Xinxiang 453007 China h.nan University of Science and Tech.ology Luoyang 471003 China h.angsh.n College Huangshan 245000 China h.nan Normal University Changsha 410081 China h.nan University Changsha 410082 China Indian Institute of Tec

To investigate th. nature of th. Ψ（3770） resonance and to measure th. cross section for e^＋e^-→DD, a cross-section scan data sample, distributed among 41 center-of-mass energy points from 3.73 to 3.89 GeV, was taken with.th. BESIII detector operated at th. BEPCII collider in th. year 2010. By analyzing th. large angle Bh.bh. scattering events, we measure th. integrated luminosity of th. data sample at each.center-of-mass energy point. Th. total integrated luminosity of th. data sample is 76.16±0.04±0.61 pb^-1, wh.re th. first uncertainty is statistical and th. second systematic.

关键词： Bh.bh. scattering events integrated luminosity BESⅢ

Simple, Selective, and Sensitive Spectroph.tometric Meth.d for Determination of Trace Amounts of Nickel(Ⅱ), Copper (Ⅱ), Cobalt (Ⅱ), and Iron (Ⅲ) with.a Novel Reagent 2-Pyridine Carboxaldeh.de Isonicotinyl h.drazone

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Ch.mical Research.in Ch.nese Universities 2008年第2期24卷 143-147页

作者： Sajid h. Guzar JIN qin-h.n Institute of Miniature Analytical Instrumentation College of Chemistry Jilin University Changchun 130021 P. R. China Research.Center of Instrumentation Zhejiang University Hangzhou 310058 P. R. China

A selective and sensitive reagent of 2-pyridine carboxaldeh.de isonicotinyl h.drazone（2-PYAINh. was synth.sized and studied for th. spectroph.tometric determination of nickel, copper, cobalt, and iron in detail. At a ph.value of 7.0, 9,0, 9.0, and 8.0, respectively, wh.ch.greatly increased th. selectivity; nickel, copper, cobalt, and iron reacted with.2-PYAINh.to form a 1：2 yellow-orange, 1：2 yellow-green, 1：2 yellow and 1：1 yellow complexes, with.absorption peaks at 363, 352, 346, and 359 nm, respectively. Under th. optimal conditions, Beer＇s law was obeyed over th. ranges of 0.01-1.4, 0.01-1.5, 0.01-2.7, and 0.01-5.4 mg/L respectively. Th. apparent molar absorptivity and Sandell＇s sensitivities were 8.4×10^4, 5.2×10^4, 7.1×10^4, and 3.9×10^4 L·mol^-l·cm^-1, respectively, and 0.00069, 0.0012, 0.00078, and 0.0014 μg·cm2, respectively. Th. detection limits were found to be 0.001, 0.002, 0.003, and 0.01 mg/L, respectively. Th. detailed study of various interfering ions to make th. meth.d more sensitive was carried out and selective and several real samples were analyzed with.satisfactory results.

关键词： Copper(Ⅱ) Nickel(Ⅱ) Cobalt(Ⅱ) Iron(Ⅲ) 2-Pyridine carboxaldeh.de isonicotinyl h.drazone(2-PYAINh. Spectroph.tometry

Effects of diurnal adjustment on biases and trends derived from inter-sensor calibrated AMSU-A data

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Frontiers of Earth.Science 2018年第1期12卷 1-16页

作者： h. Ch.N X. ZOU Z. qin Department of Atmosph.ric and Oceanic Sciences University of Colorado Boulder Colorado CO 80309 USA Earth.System Science Interdisciplinary Center (ESSIC) University of Maryland College Park Maryland MD 20742 USA Joint Center for Data Assimilation Research.and Applications Nanjing University of Information Science and Technology Nanjing 210044 China

Measurements of brigh.ness temperatures from Advanced Microwave Sounding Unit-A （AMSU-A） temperature sounding instruments onboard NOAA Polar- orbiting Operational Environmental Satellites （POES） h.ve been extensively used for studying atmosph.ric temperature trends over th. past several decades. Inter- sensor biases, orbital drifts and diurnal variations of atmosph.ric and surface temperatures must be considered before using a merged long-term time series of AMSU-A measurements from NOAA- 15, - 18, - 19 and MetOp-A. We study th. impacts of th. orbital drift and orbital differences of local equator crossing times （LECTs） on temperature trends derivable from AMSU-A using near-nadir observa- tions from NOAA-15, NOAA-18, NOAA-19, and MetOp-A during 1998 - 2014 over th. Amazon rainforest. Th. double difference meth.d is firstly applied to estimation of inter-sensor biases between any two satellites during th.ir overlapping time period. Th. inter-calibrated observations are th.n used to generate a month.y mean diurnal cycle of brigh.ness temperature for each.AMSU-A ch.nnel. A diurnal correction is finally applied each.ch.nnel to obtain AMSU-A data valid at th. same local time. Impacts of th. inter-sensor bias correction and diurnal correction on th. AMSU-A derived long-term atmosph.ric temperature trends are separately quantified and compared with.th.se derived from original data. It is sh.wn th.t th. orbital drift and differences of LECT among different POESs induce a large uncertainty in AMSU-A derived long-term warming/cooling trends. After applying an inter-sensor bias correction and a diurnal correction, th. warming trends at different local times, wh.ch.are approximately th. same, are smaller by h.lf th.n th. trends derived with.ut applying th.se corrections.

关键词： AMSU-A diurnal adjustment decadal tem-perature trend

Toxicity of substituted benzenes and algae (Scenedesmus obliquus) with.solvation equation

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Ch.nese Science Bulletin 2009年第10期54卷 1690-1696页

作者： Zh.O Yuanh.i qin WeiCh.o SU LiMin YUAN Xing LU Guangh.a ABRAh.N h. Mich.el Department of Environmental Science Northeast Normal University Changchun 130024 China College of Environmental Science and Engineering Hohai University Nanjing 210098 China Department of Ch.mistry University College London London WC1H OA J UK

Quantitative structure-activity relationsh.ps (QSARs) for th. toxicity of substituted ph.nols, anilines and nitrobenzenes to algae (Scenedesmus obliquus) h.ve been studied. Ch.micals were divided into polar narcotics and electroph.les based on structure criteria according to th. toxicity mech.nisms of action. A good relationsh.p between th. toxicity and octanol/water partition coefficient (logP) was observed for th. polar narcotic compounds. Th. results confirmed th.t h.droph.bicity is th. determining ph.sicoch.mical parameter in modelling narcotics. h.wever, no statistically significant mono-parametric QSAR models could be made from descriptors calculated in th.s study for all th. compounds. In order to investigate th. mech.nisms of toxic action and develop QSAR models for all compounds, Abrah.m solvation descriptors were calculated from th. program of Ph.rma-Algorith.s. Stepwise regression produced a th.ee-parameter QSAR model (polarizability/dipolarity, h.drogen-bond basicity and molecular volume) with.a good statistical fit for all th. compounds studied, wh.ch.h.d square of th. correlation coefficient R2=0.83. We h.ve also developed an interpretable QSAR model by using parameter of logP, wh.ch.represents th. bio-uptake process, and polarizability/dipolarity (S), wh.ch.represents th. interaction of ch.micals with.th. acceptor micromolecules (target receptor) at th. active site. No h.drogen-bond interaction was observed between th. ch.micals and receptor micromolecules.

关键词：毒性作用取代苯酚溶剂化硝基苯类化合物藻类定量构效关系氢键相互作用方程