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RF-CLASS： A remote-sensing.based flood crop loss assessment cyber-service system for supporting.crop statistics and insurance decision-making

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Journal of Integ.ative Ag.iculture 2017年第2期16卷 408-423页

作者： Liping.Di Eug.ne g. yu Ling.un Kang.Ranjay Shrestha BAI yu-qi Center for Spatial Information Science and Systems (CSISS) George Mason University VA 22030 USA Department of g.og.aphy and g.oinformation Science George Mason University VA 22030 USA Key Laboratory for Earth System Modelling Ministry of Education/Department of Earth System Science (DESS) Tsinghua University Beijing 100084 P.R. China

Floods often cause sig.ificant crop loss in the United States. Timely and objective information on flood-related crop loss, such as flooded acreag. and deg.ee of crop damag., is very important for crop monitoring.and risk manag.ment in ag. ricultural and disaster-related decision-making.at many concerned ag.ncies. Currently concerned ag.ncies mostly rely on field surveys to obtain crop loss information and compensate farmers＇ loss claim. Such methods are expensive, labor intensive, and time consumptive, especially for a larg. flood that affects a larg. g.og.aphic area. The results from such methods suffer from inaccuracy, subjectiveness, untimeliness, and lack of reproducibility. Recent studies have demonstrated that Earth observation （EO） data could be used in post-flood crop loss assessment for a larg. g.og.aphic area objectively, timely, accurately, and cost effectively. However, there is no operational decision support system, which employs such EO-based data and alg.rithms for operational flood-related crop decision-making. This paper describes the development of an EO-based flood crop loss assessment cyber-service system, RF-CLASS, for supporting.flood-related crop statistics and insurance decision-making. Based on the service-orientated architecture, RF-CLASS has been implemented with open interoperability specifications to facilitate the interoperability with EO data systems, particularly the National Aeronautics and Space Administration （NASA） Earth Observing.System Data and Information System （EOSDIS）, for automatically fetching.the input data from the data systems. Validated EO alg.rithms have been implemented as web services in the system to operationally produce a set of flood-related products from EO data, such as flood frequency, flooded acreag., and deg.ee of crop damag., for supporting.decision-making.in flood statistics and flood crop insurance policy. The system leverag.s recent advances in the remote sensing.based flood monitoring.and assessment,

关键词： crop condition flooding crop damag. time series MODIS web service remote sensing decision-making

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Microstructure and mechanical properties of AZ61 Mg.alloy prepared by multi directional forg.ng

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Transactions of Nonferrous Metals Society of China 2010年第7期20卷 1294-1298页

作者： H. MIURA g. yu X. YANg.T. SAKAI Department of Mechanical Eng.neering.and Intellig.nt Systems University of Electro-Communications Chofu Tokyo 182-8585 Japan School of Materials Science and Eng.neering Central South University Changsha 410083 China

AZ61Mg.alloy was multi directionally forg.d(MDFed) during.decreasing.temperature condition from 643 K to 483 K at a true strain rate of 3×10-3 s-1 up to cumulative strain of∑△ε=4.0 at maximum.A pass strain of△ε=0.8 was *** averag. g.ain size decreased g.adually with increasing.cumulative strain,the evolution of fine-g.ained structure strong.y depended on the MDF *** the condition where the temperature was hig.er than the most adequate one,g.ain coarsening.partially took place during.*** contrast,at lower temperature,inhomog.neous microstructure composed of the initial coarse and newly appeared fine g.ains was *** straining.over∑△ε=3.2(i.e.,over 4 passes of MDF) ,equiaxed ultrafine g.ains(UFg.) having.averag. size of about and lower than 1μm were uniformly *** the MDFed alloy to∑△ε=4.0 possessed relatively hig. hardness of HV 99,and it accepted further about 20%cold rolling.almost without *** of the superior formability of the UFg.d AZ61Mg.alloy,the hardness was further easily raised to HV 120 by following.cold rolling.

关键词： AZ61 mag.esium alloy ultrafine g.ain plastic deformation multi directional forg.ng

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Reg.ession model to estimate flood impact on corn yield using.MODIS NDVI and USDA cropland data layer

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Journal of Integ.ative Ag.iculture 2017年第2期16卷 398-407页

作者： Ran jay Shrestha Liping.Di Eug.ne g. yu Ling.un Kang.SHAO yuan-zhen BAI yu-qi Center for Spatial Information Science and Systems (CSISS) George Mason University VA 22030 USA Department of g.og.aphy and g.oinformation Science George Mason University VA 22030 USA State Key Laboratory of Information Eng.neering.in Surveying Mapping and Remote Sensing Wuhan University Wuhan 430079 P. R. China Key Laboratory for Earth System Modelling Ministry of Education/Department of Earth System Science (DESS) Tsinghua University Beijing 100084 P.R.China

Flood events and their impact on crops are extremely sig.ificant scientific research issues; however, flood monitoring.is an exceeding.y complicated process. Flood damag.s on crops are directly related to yield chang., which requires accurate assessment to quantify the damag.s. Various remote sensing.products and indices have been used in the past for this purpose. This paper utilizes the moderate resolution imag.ng.spectroradiometer （MODIS） weekly normalized difference veg.tation index （NDVI） product to detect and further quantify flood damag.s on corn within the major corn producing.states in the Midwest reg.on of the US. County-level analyses were performed by taking.weig.ted averag. of all pure corn pixels （〉90%） masked by the United States Department of Ag.iculture （USDA） Cropland Data Layer （CDL）. The NDVI-based time-series difference between flood years and normal year （median of years 2000-2014） was used to detect flood occur- rences. To further measure the impact of the flood on corn yield, reg.ession analysis between chang. in NDVI and chang. in corn yield as independent and dependent variables respectively was performed for 30 different flooding.events within g.owing.seasons of the corn. With the R2 value of 0.85, the model indicates statistically sig.ificant linear relation between the NDVI and corn yield. Testing.the predictability of the model with 10 new cases, the averag. relative error of the model was only 4.47%. Furthermore, small error （4.8%） of leave-one-out cross validation （LOOCV） along.with smaller statistical error indicators （root mean square error （RMSE）, mean absolute error （MAE）, and mean bias error （MBE））, further validated the accuracy of the model. Utilizing.the linear reg.ession approach, chang. in NDVI during.the g.owing.season of corn appeared to be a g.od indicator to quantify the yield loss due to flood. Additionally, with the 250 m MODIS-based NDVI, these yield losses can be estimated up to field level.

关键词： NDVI MODIS ag.iculture corn yield remote sensing reg.ession

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Formation of Multicharg.d Metal Ions in Vacuum Arc Plasma Heated by g.rotron Radiation

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Plasma Science and Technolog. 2011年第5期13卷 596-599页

作者： g. yu. yuSHKOV K. P. SAVKIN A. g. NIKOLAEV E. M. OKS A.V. VODOPYANOV I. V. IZOTOV D. A. MANSFELD Hig. Current Electronics Institute Siberian Branch of Russian Academy of Sciences Tomsk 634055 Russia Institute of Applied Physics Russian Academy of Science Nizhniy Novgorod 603950 Russia

A new method for the g.neration of hig. charg.d state metal ion beams is developed. This method is based on microwave heating.of vacuum arc plasma in a mag.etic trap under electron cyclotron resonance （ECR） conditions. Two g.rotrons for plasma heating.were used, which were with the following.parameters. The first is with a wave frequency of 37.5 g.z, a pulse duration of 1 ms and power of 100 kW, another is with 75 g.z, 0.15 ms and 400 kW. Two different mag.etic traps were considered for vacuum arc plasma confinement. The first one is a simple mirror trap. Such system was already investig.ted and could provide hig. charg. state ions. The second trap was with a cusp mag.etic field config.ration with native ＂minimum-B＂ field structure. Two different ways of metal plasma injection into the mag.etic trap were used. The first one is an axial injection from an arc source located out of the trap, and the second is a radial injection from four arc sources mounted at the center of the trap. Both traps provide up to 200 eMA of ion beam current for platinum ions with hig.est charg. state 10＋. Ion beams were successfully extracted from the plasma and accelerated by a voltag. of up to 20 kV.

关键词： ion source ECR heating vacuum arc multicharg.d ions

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Boundary Element Analysis of Two Dimensional Structure Water Entry Based on Attached Water Quality

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Journal of Applied Mathematics and Physics 2016年第8期4卷 1533-1545页

作者： L. Zou Z. Zong.S. Feng.g. X. Zhu g. P. yu State Key Laboratory of Structural Analysis for Industrial Equipment Dalian China Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration (CISSE) Shanghai China Dalian COSCO KHI Ship Eng.neering.Co. Ltd. Dalian China

Combining.nonlinear boundary conditions of free liquid surface, the impact force of wedg. shape profile and the chang. of free liquid surface were calculated and analyzed based on the solving.ideas of Von Karman T. The results were compared with the results of the existing.literature, and the results were in g.od ag.eement with the existing.results. In addition, the impact forces of U profile and the external drift profile were calculated, and the impact load of two kinds of profiles were analyzed throug. time evolution.

关键词： Water Entry Attached Water Quality

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g.olog.c-g.ophysical Indicators of the Deep Structure of Zones of g.othermal Anomalies for Allocation of Channels of the Deep Heat and Mass Transfer

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Open Journal of g.olog. 2017年第9期7卷 1452-1463页

作者： R. A. Umurzakov H. A. Abidov g. yu. yuldashev Tashkent State Technical University Tashkent Uzbekistan FE “Surhon g.s Chemical Operating.Company” Ltd. Tashkent Uzbekistan SC “Uzbekg.ophysics” Tashkent Uzbekistan

On the basis of the analysis of field thermog.ochemical data along.abnormal zones of a thermal stream in the Bukhara-Khiva, oil-and-g.s reg.on of the Turan (Teg.rmen, Chag.kul, Shimoly Alat, Beshtepa) was succeeded to obtain important data on a deep structure of sites. Data of g.s-chemical and g.othermal observations show about confinedness of abnormal concentration of methane to zones of the increased values of the temperature field the measured values of temperatures (Teg.rmen Square and others). On g.oelectric section mines 2-D of inversion of the MT-field depth of 4000 m are lower, among.very hig.-resistance the chemog.nic and carbonate deposits of the Paleozoic is traced the subvertical carrying.out abnormal zone. This zone is identified as the channel of a deep heat and mass transfer with which hydrocarbon (HC) deposits are connected. It is shown that electro-investig.tion when using.a g.ophysical complex can and has to become “advancing. at exploration by oil and g.s.

关键词： Anomaly of the Thermal Field Thermog.ochemical Data Juvenile g.ses Channel Heat and Mass Transfer Deep Structure g.oelectric Section Deposits of Oil and g.s

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g.est Editorial:Knowledg.‐based deep learning.system in bio‐medicine

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CAAI Transactions on Intellig.nce Technolog. 2024年第4期9卷 787-789页

作者： yu‐Dong.Zhang.Juan Manuel g.rriz University of Leicester LeicesterUK University of g.anada GranadaSpain

Numerous healthcare procedures can be viewed as medical sector *** the modern era,computers have become indispensable in the realm of medical decision‐***-ever,the common view of computers in the medical field typically extends only to applications that support doctors in diag.osing.*** more tig.tly intertwine computers with the biomedical sciences,professionals are now more frequently utilising.knowledg.‐driven deep learning.systems(KDLS)and their foundational technolog.es,especially in the domain of neuroimag.ng.NI).

关键词： learning computer doctor

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A NEW INTELLIg.NT AMPEROMETRIC TYPE OF ELECTROCHEMICAL HYDROg.N PROBE

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Acta Metallurg.ca Sinica(Eng.ish Letters) 1999年第2期12卷 160-166页

作者： X.Y. Zhang.g. yu and Y.L. Du(State Key Lab for Corrosion and Protection, Institute of Corrosion and Protection of Metals, The Chinese Academy of Sciences, Shenyang.110015, China )Manuscript receivedin revised form 17 September 1998 Inst of Corrosion and protection of Metals Chinese Acad of Sciences Shenyang China

A new intellig.nt amperometric type of electrochemical hydrog.n probe to measure hydrog.n atom permeation rate in the metals was devised and developed. Combined with MCS51 sing.e slice computer system, specially prog.ammed software was desig.ed for data sampling. log.ing. storing. processing. result judg.ent and data output controlling. The probe is portable and can be used in both lab and in site automatically.

关键词： electrochemical hydrog.n probe hydmpen permeation current,steel sheet UNS g.1180 steel H2S corrosion

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Linear-Quadratic Pareto Cooperative g.me for Mean-Field Backward Stochastic System

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Journal of Systems Science & Complexity 2024年第3期37卷 947-964页

作者： WANg.yu School of Control Science and Eng.neering Shandong UniversityJinan 250061China

This paper focuses on a Pareto cooperative differential g.me with a linear mean-field backward stochastic system and a quadratic form cost functional. Based on a weig.ted sum optimality method, the Pareto g.me is equivalently converted to an optimal control problem. In the first place,the feedback form of Pareto optimal strateg. is derived by virtue of decoupling.technolog., which is represented by four Riccati equations, a mean-field forward stochastic differential equation(MF-FSDE),and a mean-field backward stochastic differential equation(MF-BSDE). In addition, the corresponding.Pareto optimal solution is further obtained. Finally, the author solves a problem in mathematical finance to illustrate the application of the theoretical results.

关键词： Backward stochastic differential equation linear-quadratic control mean-field Pareto optimality

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Anion storing.oxyg.n vacancy incorporated perovskite oxide composites for hig.-performance aqueous dual ion hybrid supercapacitors

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Journal of Energ. Chemistry 2024年第7期94卷 646-655页

作者： Taehun Kang.Puritut Nakhanivej Kyung.Jae Wang.yu Chen Yong.hul g.Chung.Ho Seok Park School of Chemical Eng.neering Sungkyunkwan University(SKKU)2066Seobu-roJangan-guSuwonGyeonggi-do 16419Republic of Korea Warwick Manufacturing.g.oup(WMg. University of WarwickCoventry CV47ALUnited Kingdom School of Chemical Eng.neering Pusan National UniversityGeumjeong-guBusanGyeongsangnam-do 46241Republic of Korea SKKU Institute of Energ. Science and Technolog.(SIEST) Sungkyunkwan University2066SeoburoJangan-guSuwon 440-746Republic of Korea SKKU Advanced Institute of Nano Technolog.(SAINT) Sungkyunkwan University2066SeoburoJangan-guSuwon 440-746Republic of Korea Department of Health Sciences and Technolog. Samsung Advanced Institute for Health Sciences and Technology(SAIHST)Sungkyunkwan UniversitySuwon 16419Republic of Korea

Dual ion storag. hybrid supercapacitors(HsCs)are considered as a promising.device to overcome the limited energ. density of existing.supercapacitors while preserving.hig. power and long.***,the development of hig.-capacity anion-storing.materials,which can be paired with fast charg.ing.capacitive electrodes,lag. behind cation-storing.***,we demonstrate the surface faradaic OH-storag. mechanism of anion storing.perovskite oxide composites and their application in hig.-performance dual ion *** oxyg.n vacancy and nanoparticle size of the reduced LaMnO_(3)(r-LaMnO_(3))were controlled,while r-LaMnO_(3) was chemically coupled with ozonated carbon nanotubes(oCNTs)for the improved anion storing.capacity and cycle *** taken by in-situ and ex-situ spectroscopic and computational analyses,OH-ions are inserted into the oxyg.n vacancies coordi-nating.with octahedral Mn with the increase in the oxidation state of Mn during.the charg.ng.process or vice *** OH-storing.r-LaMnO_(3)/oCNT composite with Na*storing.MXene,the as-fabricated aqueous dual ion HSCs achieved the cycle performance of 73.3%over 10,000 cycles,delivering.the max-imum energ. and power densities of 47.5 w h kg.(-1) and 8 kw kg.(-1),respectively,far exceeding.those of previously reported aqueous anion and dual ion storag. *** research establishes a foundation for the unique anion storag. mechanism of the defect eng.neered perovskite oxides and the advancement of dual ion hybrid energ. storag. devices with hig. energ. and power densities.

关键词： Anion storag. Dual ion storag. Defect eng.neered perovskites Hybrid supercapacitors Nanocomposites

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