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| 1 | China's lakes at present:Number,area and spatial distribution显示文摘Based on 11004 satellite images from CBERS CCD and Landsat TM/ETM,changes in the spatial characteristics of all lakes in China were determined following pre-established interpretation rules.This dataset was supported by 6843 digital raster images(1:100000 and 1:50000),a countrywide digital vector dataset(1:250000),and historical literature.Comparative data were corrected for seasonal variations using precipitation data.There are presently 2693 natural lakes in China with an area greater than 1.0 km2,excluding reservoirs.These lakes are distributed in 28 provinces,autonomous regions and municipalities and have a total area of 81414.6 km2,accounting for-0.9% of China's total land area.In the past 30 years,the number of newly formed and newly discovered lakes with an area greater than 1.0 km2 is 60 and 131,respectively.Conversely,243 lakes have disappeared in this time period. | MA RongHua YANG GuiShan DUAN HongTao JIANG JiaHu WANG SuMin FENG XueZhi LI AiNong KONG FanXiang XUE Bin WU JingLu LI ShiJie | 2011 | Science China Earth Sciences2011，54，2： | 79 |
| 2 | Characteristics of Volcanic Rocks in the Shoshonite Province, Eastern China, and Their Metallogenesis显示文摘The shoshonite province in eastern China is characterized by extensive distribution (ca. 80000 km2) of Late Jurassic-Early Cretaceous (165-100 Ma) shoshonite series with subordinate high-K calc-alkali series. It was formed in a dominantly tensile stress field. In comparison with their analogues in island arcs and active continental margins in other countries, the volcanic rocks in the shoshonite province have their specific characteristics in petrology, mineralogy and geochemistry as well as related mineralization association, which are the comprehensive reflection of the special composition and structure of the mantle and crust of the province and the special Mesozoic regional tectonic setting. | Wang Dezi, Ren Qijiang, Qiu Jiansheng, Chen Kerong,Xu Zhaowen and Zeng Jiahu Department of Earth Sciences, Nanjing University, Nanjing, Jiangsu | 1996 | Acta Geologica Sinica(English Edition)1996，70，3： | 10 |
| 3 | Curing kinetics and mechanical properties of bio-based composite using rosin-sourced anhydrides as curing agent for hot-melt prepreg显示文摘In this study,a novel bio-based thermosetting system has been developed from epoxy resin(EP),with rosin-sourced anhydrides(maleopimaric acid,RAM) as curing agent and imidazole type latent catalyst(two amino imidazole salt complex,IMA),to be used as matrix for hot-melt prepreg curing at mid-temperature.For comparison,the epoxy resin system with petroleum sourced hardener methylhexahydrophthalicanhydride(MHHPA) was also examined.The curing behaviour and mechanism were investigated by non-isothermal differential scanning calorimeter(DSC) analysis and Fourier transform infrared(FTIR) spectra.The results showed that the curing course of bio-based epoxy resin system containing RAM included two stages,which were the reaction between the free carboxyl group of RAM and oxirane ring under the acceleration of IMA,and the main reaction attributed to the reaction between anhydride and oxirane.According to Kissinger method,the reaction activation energy(E_a) of two stages were 68.9 and 86.5kJmol^(-1),respectively.The E_a of EP/MHHPA and EP/IMA resin system were 81.04 and 77.9kJmol^(-1).The processing property of EP/RAM/IMA system,i.e.the relationship between viscosity-temperature-time,was characterized by cone-plate viscometer aim to decide the processing parameter of prepreg preparation.The effect of RAM content on mechanical performance and dynamic mechanical property was investigated.Noteworthily,compared with the laminates with EP/MHITPA as matrix,the laminates with RAM as hardeners achieved a 44%,73% and 70℃ increase in bending strength,bending modulus and the glass transition temperature,respectively,due to the bulky hydrogenated phenanthrene ring structure incorporated into the cross-linking networks.When the fiber volume fraction reached 47%,the mechanical property of the laminates prepared with hot melt prepreg was superior or comparable to that of composites with pure petroleum sourced matrix.RAM as cross-linking agent of epoxy resin holds a great potential to satisfy the requirement of composites such as structure and secondary structure parts preparation. | ZHANG XuFeng WU YunQiQiGe WEI JiaHu TONG JianFeng YI XiaoSu | 2017 | Science China(Technological Sciences)2017，60，9： | 6 |
| 4 | Densification,microstructure and mechanical properties of multicomponent(TiZrHfNbTaMo)C ceramic prepared by pressureless sintering显示文摘A multicomponent(TiZrHfNbTaMo)C ceramic has been fabricated by pressureless sintering at temperatures from 2100℃to 2500℃,using an equimolar multicomponent carbide powder synthesized by carbothermal reduction as the starting material.Influence of sintering temperature on densification,microstructure and mechanical properties of the ceramics was investigated.The relative density increases with increasing sintering temperature,and a nearly fully dense sample is achieved by pressureless sintering at 2500℃.Average grain size increases from 3.7 to 15.2μm with increasing sintering temperature from 2300 to 2500℃.The(TiZrHfNbTaMo)C ceramic sintered at 2400℃exhibits a single phase fcc structure with homogeneous chemical composition,an average grain size of 7.0μm and a relative density of96.5%,while its measured hardness is 33.2 GPa at 100 mN and 23.2 GPa at 9.8 N. | Wen Zhang Lei Chen Chenguang Xu Wenyu Lu Yujin Wang Jiahu Ouyang Yu Zhou | 2021 | Journal of Materials Science & Technology2021，，13： | 4 |
| 5 | Optimization Algorithms for Predictive Control Approach to Networked Bilinear Systems显示文摘 | Binglin Wang Yu Kang Jiahu Qin Yanmei Li | 2017 | 自动化学报2017，43，7： | 3 |
| 6 | A Fast Approximation Method for Partially Observable Markov Decision Processes显示文摘This paper develops a new lower bound method for POMDPs that approximates the update of a belief by the update of its non-zero states.It uses the underlying MDP to explore the optimal reachable state space from initial belief and select actions during value iterations,which significantly accelerates the convergence speed.Also,an algorithm which collects and prunes belief points based on the upper and lower bounds is presented,and experimental results show that it outperforms some of the state-of-art point-based algorithms. | LIU Bingbing KANG Yu JIANG Xiaofeng QIN Jiahu | 2018 | Journal of Systems Science & Complexity2018，31，6： | 3 |
| 7 | Microstructural evolution in the friction stir welded 6061 aluminum alloy (T6-temper condition) to copper显示文摘 | Jiahu Ouyang Eswar Yarrapareddy Radovan Kovacevic | 2005 | Journal of Materials Processing Tech2005，，1： | 2 |
| 8 | Relationship between structure and antioxidation of tocopherol with molecular orbit theory 显示文摘 | SHI Dongyun PAN Jiahu | 1998 | Acta Pharmacologica Sinica1998，11，： | 1 |
| 9 | Consensus of multiple second-order vehicles with a time-varying reference signal under directed topology显示文摘 | Jiahu Qin Wei Xing Zheng Huijun Gao | 2011 | Automatica2011，，9： | 1 |
| 10 | Microstrural evolution in the friction stir welded 6061 aluminum alloy(T6-temper condition) to copper显示文摘 | Jiahu O Y Eswar Y Radovan K | 2006 | Journal of Materials Processing Technology2006，，172： | 1 |
| 11 | FVO: floor vision aided odometry显示文摘In many indoor scenarios, such as restaurants, laboratories, and supermarkets, the planar floors are covered with rectangular tiles. We realized that the abundant parallel lines and crossing points formed by tile joints can be used as natural features to assist indoor localization, and thus we propose a novel indoor localization method for mobile robots by fusing odometry and monocular vision. The method comprises three steps. First, the heading and location of the mobile robot are approximately estimated by odometry based on incremental encoders. Second, with the aid of a camera, the lens of which points vertically toward the floor, the odometric heading estimation can be corrected by detecting the relative angle between the robot's heading and the tile joints. Third, the odometric location estimation is corrected by detecting the perpendicular distance between the image center and the tile joints. As compared with the existing indoor localization methods, the proposed method, called floor vision aided odometry, is not only relatively low in economic cost and computational complexity, but also relatively high in accuracy and robustness. The effectiveness of this method is verified by a real-world experiment based on a differential-drive wheeled mobile robot. | Wenjun LV Yu KANG Jiahu QIN | 2019 | Science China(Information Sciences)2019，62，1： | 1 |
| 12 | Structureand properties of laser quenched 4Cr13 steel显示文摘 | Yang Jiahu Li Xiadong Pei Yutao | 1993 | Chinese Journal of Laser1993，2，5： | 1 |
| 13 | Impact offuture climate change on runoff in the head region of theYellow River显示文摘 | LI Li HAO Zhenchun WANG Jiahu | 2008 | J Hydrologic Engrg2008，13，： | 1 |
| 14 | Microstructural evolution in the friction stir welded 6061 aluminum alloy (T6-temper condition) to copper 显示文摘 | Ouyang Jiahu Yarrapareddy E Kovacevic R | 2006 | Journal of Materials Processing Technology2006，172，： | 1 |
| 15 | Structure and properties of laser quenched 4Cr13 steel 显示文摘 | Ouyang Jiahu Li Xiadong Pei Yutao | 1993 | Chinese Journal of Laser1993，2，5： | 1 |
| 16 | Rapid prototyping of 4043 Al-alloy parts by VP-GTAW显示文摘 | Wang Huijun Jiang Wenhui Ouyang Jiahu | 2004 | International Journal of Machine Tools and Manufacture2004，148，1： | 1 |
| 17 | Microstructural evolution in the friction stir welded 6061 aluminum alloy (T6-temper condition) to copper 显示文摘 | Jiahu Ouyang Eswar Yarrapareddy Radovan Kovaeevie | 2006 | Journal of Materials Processing Technology2006，172，1： | 1 |
| 18 | Price-Based Residential Demand Response Management in Smart Grids:A Reinforcement Learning-Based Approach显示文摘This paper studies price-based residential demand response management(PB-RDRM)in smart grids,in which non-dispatchable and dispatchable loads(including general loads and plug-in electric vehicles(PEVs))are both involved.The PB-RDRM is composed of a bi-level optimization problem,in which the upper-level dynamic retail pricing problem aims to maximize the profit of a utility company(UC)by selecting optimal retail prices(RPs),while the lower-level demand response(DR)problem expects to minimize the comprehensive cost of loads by coordinating their energy consumption behavior.The challenges here are mainly two-fold:1)the uncertainty of energy consumption and RPs;2)the flexible PEVs’temporally coupled constraints,which make it impossible to directly develop a model-based optimization algorithm to solve the PB-RDRM.To address these challenges,we first model the dynamic retail pricing problem as a Markovian decision process(MDP),and then employ a model-free reinforcement learning(RL)algorithm to learn the optimal dynamic RPs of UC according to the loads’responses.Our proposed RL-based DR algorithm is benchmarked against two model-based optimization approaches(i.e.,distributed dual decomposition-based(DDB)method and distributed primal-dual interior(PDI)-based method),which require exact load and electricity price models.The comparison results show that,compared with the benchmark solutions,our proposed algorithm can not only adaptively decide the RPs through on-line learning processes,but also achieve larger social welfare within an unknown electricity market environment. | Yanni Wan Jiahu Qin Xinghuo Yu Tao Yang Yu Kang | 2022 | IEEE/CAA Journal of Automatica Sinica2022，9，1： | 1 |
| 19 | Material removal model of vertical impinging in fluid jet polishing显示文摘 | Shi Chunyan Yuan Jiahu Wu Fan | 2010 | Chinese Optics Letter2010，8，03： | 1 |
| 20 | Decoupled Control of the Active and Reactive Power in Three-phase PWM Converter Based on Inverse System Theory 显示文摘 | GUO Jiahu ZHANG Luhua DENG Fujing | 2007 | International Conference on Automation and Logistics2007，1821，： | 1 |
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