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| 1 | Convolutional neural networks for expert recommendation in community question answering显示文摘Community Question Answering(CQA) is becoming an increasingly important web service for people to search for expertise and to share their own. With lots of questions being solved, CQA have built a massive, freely accessible knowledge repository, which can provide valuable information for the broader society rather than just satisfy the question askers. It is critically important for CQA services to get high quality answers in order to maximize the benefit of this process. However, people are considered as experts only in their own specialized areas. This paper is concerned with the problem of expert recommendation for a newly posed question, which will reduce the questioner's waiting time and improve the quality of the answer, so as to improve the satisfaction of the whole community. We propose an approach based on convolutional neural networks(CNN) to resolve this issue. Experimental analysis over a large real-world dataset from Stack Overflow demonstrates that our approach achieves a significant improvement over several baseline methods. | Jian WANG Jiqing SUN Hongfei LIN Hualei DONG Shaowu ZHANG | 2017 | Science China(Information Sciences)2017，60，11： | 11 |
| 2 | Pd/AlF3 Catalysts for Catalytic Dehydrofluorination of 1,1,1,3,3-Pentafluoropropane显示文摘 | WANG Fang ZHANG Wenxia LIANG Yan WANG Yuejuan LU Jiqing LUO Mengfei | 2015 | Chemical Research in Chinese Universities2015，31，6： | 8 |
| 3 | Ergodic secrecy rate of two-user MISO interference channels with statistical CSI显示文摘This paper considers a two-user multiple-input single-output(MISO) interference channel with confidential messages(IFC-CM), where the beamforming vectors at the two transmitters are jointly optimized using the closed-form Pareto-optimal parameterization. We prove that artificial noise cannot improve the secrecy rate performance, and coordinated beamforming is secrecy-rate optimal which is achieved by agreeing on the parameters between the two transmitters. We analyze the feasible set of the beamforming parameters that guarantees positiveness of the secrecy rates when the transmitters know only statistical CSI, and then analysis in the ergodic secrecy rate region is discussed. More importantly, we derive the closed form of the ergodic secrecy rates and illustrate the Pareto-optimal structure of the beamforming vectors. | FEI ZeSong NI JiQing ZHAO Di XING ChengWen WANG NiWei KUANG JingMing | 2014 | Science China(Information Sciences)2014，57，10： | 7 |
| 4 | Influence of plastic film mulching and planting density on yield,leaf anatomy,and root characteristics of maize on the Loess Plateau显示文摘In rainfed areas of northwestern China,maize production is constrained mainly by low temperature during early growth and water limitation during the entire growth period.Plastic film mulching is commonly used to increase maize yield in this area,because it increases topsoil temperature and moisture content as well as water use efficiency.However,the physiological and anatomical bases of maize yield improvement with plastic film mulching are not well understood.The effects of plastic film mulching and planting density on maize yield,photosynthetic characteristics,respiration,leaf anatomy,and root growth were studied in a two-year field experiment conducted on the Loess Plateau of China in 2017 and 2018.The experiment used a split-split plot design with two mulching treatments(plastic film mulching and no mulching),two planting densities(7.5×104 and10.5×104 plants ha-1),and two maize cultivars,Zhengdan 958 and Xianyu 335.Compared with no mulching,plastic film mulching increased maize yields by 31.1%–46.4%in 2017 and3.6%–34.7%in 2018.Compared with low planting density,high planting density significantly increased and slightly reduced yields of both cultivars in the dry year 2017 and the rainy year 2018,respectively.Plastic film mulching increased photosynthesis and respiration as well as leaf stomatal density and aperture.Photosynthetic rate,dark respiration,and stomatal conductance and aperture were lower at high planting than at low planting density.Maize yield was positively correlated with photosynthesis,dark respiration,and stomatal aperture.Mulching increased root dry weight and length in the 0–20 cm soil layer and root activity at maturity.Overall,the changes in root growth and leaf anatomy resulted in increased photosynthesis and dark respiration,and the increased photosynthesis contributed to the increase in grain yield and biomass production under plastic film mulching conditions.Our results increase understanding of the physiological mechanisms by which plastic film mulching increases maize yield in water-and temperature-limited areas. | Li Niu Yanyan Yan Peng Hou Wenbo Bai Rulang Zhao Yonghong Wang Shaokun Li Taisheng Du Ming Zhao Jiqing Song Wenbin Zhou | 2020 | The Crop Journal2020，8，4： | 6 |
| 5 | Melamine-assisted pyrolytic synthesis of bifunctional cobalt-based core–shell electrocatalysts for rechargeable zinc–air batteries显示文摘Designing a highly active-and stable non-noble metal bifunctional oxygen catalyst for rechargeable Znair battery remains a great challenge. Herein, we develop a facile and melamine-assisted-pyrolysis(MAP)strategy for the synthesis of core–shell Co-based electrocatalysts@N-doped carbon nanotubes(Co@CNTs)derived from metal–organic frameworks. The Co@CNTs exhibited excellent bifunctional electrocatalytic performance for both oxygen evolution and reduction. DFT calculations demonstrated that the Gibbs free energy of the rate-determining step was small enough to improve ORR activities. As a result, a Zn-air battery assembled with Co@CNTs proves a lager power density, low voltage gap between charge–discharge and excellent stability. Thus, this work offers a facile strategy to realize the synthesis of non-noble metal electrocatalyst for Zn-air battery materials with high electrochemical performance. | Jiqing Jiao Yuan Pan Bin Wang Wenjuan Yang Shoujie Liu Chao Zhang | 2021 | Journal of Energy Chemistry2021，30，2： | 5 |
| 6 | Imaging energetic electron spectrometer onboard a Chinese navigation satellite in the inclined GEO orbit显示文摘The energetic electron measurement is one of the most important issues to understand dynamics in space physics and the applications for space weather. In this study, the principle and functional components of the imaging energetic electron spectrometer(IES) onboard a Chinese navigation satellite in the inclined GEO orbit(IGSO) was introduced. The IES instrument is developed by the team in Peking University(BeiDa), thus it is named as BD-IES. Based on the pin-hole technique, the instrument can measure 50–600 keV electrons incident from 9 directions over a range of 180° in polar angle. With pulse height analysis(PHA), the spectrum can be determined for each direction. The energy and angular calibrations were performed, which show the good energy and angular characteristics of BD-IES. Monte Carlo simulations show that the anti-proton design of BDIES can effectively decrease the proton contamination on the electron measurements in the inclined GEO orbit. The primary results of BD-IES verify the successful design of this instrument. | ZOU Hong YE YuGuang ZONG QiuGang CHEN HongFei ZOU JiQing CHEN Jiang SHI WeiHong YU XiangQian ZHONG WeiYing WANG YongFu ZHOU XuZhi HAO YiXin CHEN XingRan JIA XiangHong XU Feng SHAO SiPei WANG Bo HAO XiaoYun ZHANG XiaoXin | 2018 | Science China(Technological Sciences)2018，61，12： | 5 |
| 7 | A primary study of the acoustics of Chinese traditional theatrical buildings显示文摘The traditional performing arts and theatrical buildings in China can be traced back to a long history and were well developed during Song and Yuan Dynasties, 11th-14th centuries. Pavilion stage, opened on three sides and thrusting into the audience area, was unique and the most popular form in the open-air theatres, the courtyard theatres, and the indoor theatres up to the present day. As the traditional Chinese opera is performed in an abstract way, no stage settings are required and used. Therefore, the pavilion stage including the flat or domed ceiling and the back wall is virtually functioned as a reflective shell, which increases the early reflections and also intensifies the sound in the audience area. Meanwhile, it provides sufficient self-support to the performers. Acoustical parameters including reverberation time RT, early decay time EDT, acoustic ratio C (50), strength index (loudness) G, and stage support factor ST1 were measured and reported on several traditional theatrical buildings. | WANG Jiqing (Institute of Acoustics, Tongji University, Shanghai 200092, China ) | 2003 | 声学技术2003，22，z1： | 3 |
| 8 | H7N9 virus infection triggers lethal cytokine storm by activating gasdermin E-mediated pyroptosis of lung alveolar epithelial cells显示文摘The H7N9 influenza virus emerged in China in 2013,causing more than 1560 human infections,39% of which were fatal.A ‘cytokine storm’ in the lungs of H7N9 patients has been linked to a poor prognosis and death;however,the underlying mechanism that triggers the cytokine storm is unknown.Here,we found that efficient replication of the H7N9 virus in mouse lungs activates gasdermin E(GSDME)-mediated pyroptosis in alveolar epithelial cells,and that the released cytosolic contents then trigger a cytokine storm.Knockout of Gsdme switched the manner of death of A549 and human primary alveolar epithelial cells from pyroptosis to apoptosis upon H7N9 virus infection,and Gsdme knockout mice survived H7N9 virus lethal infection.Our findings reveal that GSDME activation is a key and unique mechanism for the pulmonary cytokine storm and lethal outcome of H7N9 virus infection and thus opens a new door for the development of antivirals against the H7N9 virus. | Xiaopeng Wan Jiqing Li Yupeng Wang Xiaofei Yu Xijun He Jianzhong Shi Guohua Deng Xianying Zeng Guobin Tian Yanbing Li Yongping Jiang Yuntao Guan Chengjun Li Feng Shao Hualan Chen | 2022 | National Science Review2022，9，1： | 3 |
| 9 | Transition metal coordination polymers with polycarboxylic acid as bridging ligands:Synthesis and structure characterization of[Fe(μ_(4)-bta)_(0.5)(phen)(OH)]_(n)显示文摘A new 2D (two-dimensional) coordination polymer, [Fe(μ4-bta)0.5(phen)(OH)]n (1), has been hydrothermally synthesized with FeCl3·6H2O, Na4bta (H4bta = 1,2,4,5-benzentetra- carboxylic acid), 1,10-phen (1,10-phenanthroline) and H2O as raw materials. The crystals of the compound belong to monoclinic P21/n space group, a = 1.0129(2) nm, b = 0.9265(2) nm, c = 1.5696(3) nm,β = 91.37(3) o, V = 1.4721(5) nm3, Z = 3, final R1 = 0.0292, Wr2 = 0.0798 for 2572 [I > 2σ (I )] observed reflections. The result of structure determination shows that in the compound each bta ligand is connected with four FeIII, forming a new μ4-coordination mode. Four deprotonated carboxylic groups of bta link to FeIII ions alternatively through monodentate and bidentate coordination fashion, constructing 2D layer network. The measurement of variable temperature magnetic susceptibility indicates that there exist antiferromagnetic interactions between FeIII ions in the compound. The TGA spectrum displays relatively fine thermal stability of the compound. In addition, IR and UV-Vis spectra of compound 1 have also been measured. | XU Jiqing, CHU Deqing, YU Jiehui, WANG Tiegang & TANG AoqingCollege of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130023, China Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China | 2004 | Science China Chemistry2004，47，1： | 2 |
| 10 | Fabrication and luminescence of KGdF_4:Yb^(3+)/Er^(3+) nanoplates and their improving performance for polymer solar cells显示文摘Solar energy remains the most abundant renewable energy resource available to us[1].Continuous efforts have been invested to enhance the conversion of light to electricity by the diverse range of applications[2].Especially,polymer solar cells(PSCs)have reminded extensive attention own to flexibility,light-weight | Jiqing Jiao Yao Li Wenfei Shen Shasha Gai Jianguo Tang Yao Wang Linjun Huang Jixian Liu Wei Wang Laurence A.Belfiore | 2018 | Science Bulletin2018，63，4： | 2 |
| 11 | Effect of Different Combined Treatments on Tomato Seedling Growth in High-temperature Season显示文摘The study on raising of strong tomato seedlings in high-temperature season is of great practical significance,because high-temperature condition in summer and autumn causes excessive growth of tomato seedlings easily. ‘Fenniya'variety was selected as an experimental material,an orthogonal experiment was designed with rhizospheric temperature( A),light intensity( B) and nutrient salt concentration( C) as three factors which were designed with three levels,so as to study the effects of different treatments on root activity,strong seedling index,hypocotyl length and average internode length. The results showed that the most important factor for tomato seedling's root activity,hypocotyl length and internode length was nutrient salt concentration. In terms of effect on seedling index,substrate temperature should be reduced properly,to avoid excessive shading. It was primarily determined that the effects of three factors on the raising of strong tomato seedlings ranked as factor C,factor B and factor A from high to low; and the screened optimal seedling raising conditions were the rhizospheric temperature at( 3 + 1)℃,the shading rate of( 50 + 5) % and the EC value of( 5. 0 + 0. 5) mS/cm. | Caixia MA Ke LIU Yiming ZHANG Jiqing WANG | 2018 | Agricultural Biotechnology2018，7，3： | 2 |
| 12 | Accurate annotation of accessible chromatin in mouse and human primordial germ cells显示文摘广泛、精确的染色质改变在初发的细菌房间(PGC ) 期间是必要的为越过代的基因信息的永存的开发。这里,我们报导 DNase 我过分敏感的地点(DHS ) 标记的远侧的 cis 规章的元素(CRE ) 在鼠标和人的 PGC 开发期间显示出时间地限制的活动。把 DHS 地图用作代理,我们精确地在老鼠 PGC 定位 pluripotency 抄写因素的染色体宽的有约束力的地点。出人意料地,我们发现老鼠女性 meiotic 再结合热点能被 DHS 捕获,并且第一次,我们在老鼠女性 PGC 识别了 12,211 个再结合热点。与 meiotic 女性 PGC 的相对照,有丝分裂拘捕的男 PGC 的染色质 ? 通过在远侧的规章的区域的原子抄写因素 Y (NFY ) 绑定是容许的。而且,我们在 PGC CRE 上检验了进化压力,并且比较 genomic 分析表明那只老鼠和人的 PGC CRE evolutionarily 在哺乳动物外面越过脊椎动物树被保存并且出现强壮的保存。因此,我们的结果在鼠标和人的 PGC 开发期间揭示唯一的、时间地可存取的染色质配置。 | Jingyi Li Shijun Shen Jiayu Chen Wenqiang Liu Xiaocui Li Qianshu Zhu Beiying Wang Xiaolong Chen Li Wu Mingzhu Wang Liang Gu Hong Wang Jiqing Yin Cizhong Jiang Shaorong Gao | 2018 | Cell Research2018，28，11： | 2 |
| 13 | A review of the metal stud stiffness on the sound insulation of gypsum-board partitions显示文摘For the sound insulation of a double-panel partition,the stud between two leaves creates a vibration transmission path,which can often be more critical and more important in the mid-frequency range than the airborne path through the cavity.Owing to the fact that partitions with light-weight steel studs are commonly used in building construction,studies on the sound insulation effect of such studs have been conducted.Especially,a model,initiated by Gu and Wang(1983),has been widely studied during the past decades.In the model,the steel stud is considered as an elastic spring with its cross-section stiffness in the sound insulation index prediction of such a partition.Experimental results of different stud profiles have been reported from different testing laboratories and more information has been gained to understand the stiffness effect of the stud on the sound insulation of the double-leaf partitions.In this paper,the authors have given this subject a thorough review and have concluded that a critical problem needs further investigation on the determination of the stiffness of the connecting elements in the double-leaf partitions. | GU Qiangguo WANG Jiqing | 2019 | Chinese Journal of Acoustics2019，38，3： | 2 |
| 14 | Investigation of layer contributions to asphalt pavement rutting 显示文摘 | Wang Hui Zhang Qisen Tan Jiqing | 2009 | Journal of Materials in Civil Engineering2009，21，4： | 1 |
| 15 | Hydrothermal synthesis, structure and quantum chemistry of transition metal complex supported by metal-oxo cluster [(Ni(phen)2 2 (ξ-Mo8O26)]显示文摘 | Jiqing Xu Renzhang Wang Chunxiao Guo Guoyu Yang Qingxin Zeng Weiming Bu Ling Ye Yuguo Fan Guangdi Yang | 2001 | Science in China Series B: Chemistry2001，，2： | 1 |
| 16 | Gene mapping of a new coat mutation in mouse显示文摘Gene mapping of a mouse coat mutation has been investigated. First, 100 10-bp random primers were used to amplify DNA, but the mutation could not be located by this method because there were no correlation between the amplified products and coat phenotypes. Second, by using ldh1 , Car2, Mup1 , Pgb1 , Hbb, Es1O, Es1, Mod1, Gdc1 , Ce2, Es3 as genetic markers, linkage test crosses (two-point test) consisting of intercrossing uncovered BALB/c mice (homozygotes) to CBA/N and C57BL/6 mice with normal hair and backcrossing the heterozygotes of the F1 to the uncovered BALB/c mice were made. It was soon evident that the mutation was linked to Es3 on chromosome 11. Furthermore, three-point test was made by using Es3 and D11 Mit8 (a microsatellite DNA) as genetic markers. The result showed that the mutation was linked to Es3 with the percentage recombination of (7.89 ± 2.19) %, and linked to D11Mit8 with the percentage recombination of (26.30 ± 3.57)%. The percentage recombination between Es3 and D11Mit8 was | Shanru Li Dongping Wang Hong Lan Wenyan Zhang Baosheng Ge Jiqing Li Cuie Wang Yifan Lu Yanyan Shi Runfang Li | 1999 | Chinese Science Bulletin1999，44，13： | 1 |
| 17 | Low-loading gold in situ doped with sulfur by biomolecule-assisted approach for promoted electrochemical carbon dioxide reduction显示文摘For electrochemical carbon dioxide reduction(CO_(2)RR),CO_(2)-to-CO conversion is considered an ideal route towards carbon neutrality for practical applications.Gold(Au)is known as a promising catalyst with high selectivity for CO;however,it suffers from high cost and low mass-specific activity.In this study,we design and prepare a catalyst featuring uniform S-doped Au nanoparticles on N-doped carbon support(denoted as S-Au/NC)by an in situ synthesis strategy using biomolecules.The S-Au/NC displays high activity and selectivity for CO in CO_(2)RR with a Au loading as low as 0.4 wt.%.The Faradaic efficiency of CO(FECO)for S-Au/NC is above 95%at−0.75 V(vs.RHE);by contrast,the FECO of Au/NC(without S)is only 58%.The Tafel slope is 77.4 mV·dec−1,revealing a favorable kinetics process.Furthermore,S-Au/NC exhibits an excellent long-term stability for CO_(2)RR.Density functional theory(DFT)calculations reveal that the S dopant can boost the activity by reducing the free energy change of the potential-limiting step(formation of the*COOH intermediate).This work not only demonstrates a model catalyst featuring significantly reduced use of noble metals,but also establishes an in situ synthesis strategy for preparing high-performance catalysts. | Meijie Tan Xiaoqian Han Sen Ru Chao Zhang Zhouru Ji Zhaolin Shi Guomeng Qiao Yunying Wang Ruixue Cui Qiquan Luo Jiqing Jiao Yaguang Li Tongbu Lu | 2023 | Nano Research2023，16，2： | 1 |
| 18 | Energetic electron detection packages on board Chinese navigation satellites in MEO显示文摘Energetic electron measurements and spacecraft charging are of great significance for theoretical research in space physics and space weather applications.In this paper,the energetic electron detection package(EEDP)deployed on three Chinese navigation satellites in medium Earth orbit(MEO)is reviewed.The instrument was developed by the space science payload team led by Peking University.The EEDP includes a pinhole medium-energy electron spectrometer(MES),a high-energy electron detector(HED)based onΔE-E telescope technology,and a deep dielectric charging monitor(DDCM).The MES measures the energy spectra of 50−600 keV electrons from nine directions with a 180°×30°field of view(FOV).The HED measures the energy spectrum of 0.5−3.0 MeV electrons from one direction with a 30°cone-angle FOV.The ground test and calibration results indicate that these three sensors exhibit excellent performance.Preliminary observations show that the electron spectra measured by the MES and HED are in good agreement with the results from the magnetic electron-ion spectrometer(MagEIS)of the Van Allen Probes spacecraft,with an average relative deviation of 27.3%for the energy spectra.The charging currents and voltages measured by the DDCM during storms are consistent with the highenergy electron observations of the HED,demonstrating the effectiveness of the DDCM.The observations of the EEDP on board the three MEO satellites can provide important support for theoretical research on the radiation belts and the applications related to space weather. | YuGuang Ye Hong Zou Qiu-Gang Zong HongFei Chen JiQing Zou WeiHong Shi XiangQian Yu WeiYing Zhong YongFu Wang YiXin Hao ZhiYang Liu XiangHong Jia Bo Wang XiaoPing Yang XiaoYun Hao | 2021 | Earth and Planetary Physics2021，5，2： | 1 |
| 19 | An improved calculation algorithm of shakedown load in pavement structures 显示文摘 | ZHANG Jiqing WANG Duanyi WAN Cheng | 2012 | Journal of Compu- tational Information Systems2012，8，4： | 1 |
| 20 | Solid stat( NMR studies of methanol-to-aromatics reaction over silver ex changed HZSM 5 zeolite显示文摘 | Zeng Danlin Yang Jun Wang Jiqing | 2007 | Microporous and Mesoporous Materials2007，98，123： | 1 |
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