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| 1 | Chinese Antarctic Magnetometer Chain at the Cusp Latitude显示文摘A Chinese Antarctic Magnetometer(CAM) chain from Zhongshan Station(ZHS) to Dome-A(DMA) has been established since February 2009.A regular magnetometer is operated at ZHS,and four low power magnetometers are operated along the interior route from ZHS to DMA in the cusp latitude,extending over a distance of 1260 km.These stations fill an important void in the Antarctic magnetometer network.Furthermore,the CAM chain is magnetically conjugated with the Arctic region reaching from the Svalbard archipelago to Daneborg,on the east coast of Greenland.Conjugate measurements using the Arctic and Antarctic magnetometers provide excellent opportunities to investigate phenomena related to the coupling of the solar wind to the magnetosphere and ionosphere,such as magnetic impulse events,flux transfer events,traveling convection vortices and ultra-low frequency waves. | LIU Yonghua HU Hongqiao YANG Huigen ZHANG Beichen SUN Bo WEI Fuhai LIU Yang LIU Jianjun WANG Rui CHEN Zhuotian HU Zejun HAN Desheng SHI Guitao HU Zhengyi WANG Tao AN Chunlei Mike Rose | 2016 | Advances in Polar Science2016，27，2： | 2 |
| 2 | Small-scale spatial variability of phosphorus in a paddy soil显示文摘 | Zhengyi Hu Silvia Haneklaus Qin Liu Chengkai Zhihong Cao Ewald Schnug | 2003 | Communications in soil Science and Plant Analysis2003，34，1920： | 1 |
| 3 | Hierarchical eco-restora- tion: A systematical approach to removal of COD and dissolved nutri- ents from an intensive agricultural area显示文摘 | Wu Yonghong Hu Zhengyi Yang Linzhang | 2010 | Environmental Pollution2010，158，： | 1 |
| 4 | Ecorestoration: Simul- taneous nutrient removal from soil and water in a complex residential- cropland area显示文摘 | Wu Yonghong Philip G Kerr Hu Zhengyi | 2010 | Environmental Pollution2010，158，： | 1 |
| 5 | Analytical solution of the linear fractional differential equation by Adomian decomposition method显示文摘 | Hu Yizheng Luo Yong Lu zhengyi | 2008 | J Comput Appl Math2008，0215，1： | 1 |
| 6 | An ultra-stable microporous supramolecular framework with highly selective adsorption and separation of water over ethanol显示文摘A microporous supramolecular framework with high water and thermal stability can selectively absorb water molecules over methanol or ethanol due to the suitable channels.The model separation test on columns shows that an ultra-pure ethanol(99.9%)can be obtained from the mixture of ethanol/water(95:5).Additionally,after refluxing the desolvated sample in 95%ethanol at 60℃for 5 h,the purity of ethanol rises up to 97.43%,which is obviously higher than 96.56%for 4 A molecular sieves. | Zhengyi Di Jiandong Pang Falu Hu Mingyan Wu Maochun Hong | 2021 | Nano Research2021，14，8： | 1 |
| 7 | Investigations of near-bottom air reverse circulation in non-pipe electromechanical ice drill technology显示文摘 | HU Zhengyi TALALAY P G CAO Pinlu | 2012 | Journal of Jilin University (Earth Science Edition)2012，42，3： | 1 |
| 8 | Eco - restoration: Simultaneous nutrient removal from soil and water in a complex residential - cropland area 显示文摘 | Wu Yonghong Kerr Philip G Hu Zhengyi | 2010 | Envi- ronmental Pollution2010，，158： | 1 |
| 9 | Physiological and biochemical effects of rare earth elements on plants and their agricultural significance : a review显示文摘 | Zhengyi Hu Herfried Richter Gerd Sparovek | 2004 | Plant Nutrition2004，27，1： | 1 |
| 10 | Eco-restoration: Simultaneous nutrient removal from soil and water in a complex residential–cropland area显示文摘 | Yonghong Wu Philip G. Kerr Zhengyi Hu Linzhang Yang | 2010 | Environmental Pollution2010，，7： | 1 |
| 11 | Using Traveltime Tomography to Reconstruct Electrical Conductivity显示文摘UsingTraveltimeTomographytoReconstructElectricalConductivityMaNing,HuZhengyi,CaiQin,WangYanpingColegeofElectronicInformation... | Ma Ning Hu Zhengyi Cai Qin Wang Yanping | 1997 | Wuhan University Journal of Natural Sciences1997，2，1： | 0 |
| 12 | Can the scaling of plant nitrogen to phosphorus be altered by global change? An empirical test显示文摘全球变化可能引起土壤中各种养分的供应失衡,进而导致陆地植物中氮(N)和磷(P)元素化学计量学的不平衡。前人的研究报道了全球变化因子对植物N、P含量和N:P的影响,但鲜有研究探讨全球变化因子是否影响以及如何影响这两种元素之间的异速关系。本研究利用改变降水(增雨和干旱)、增温和N添加处理的野外控制试验,结合异速函数N=βPα(或对数转换后的线性关系:Log N=Logβ+αLog P),检验了中国西北地区黄土高原半干旱草原植物N和P化学计量特征及N和P之间的异速关系对这些全球变化因子的响应。研究结果表明,干旱和增温均降低了植物P浓度,N添加增加了植物N浓度,这些都导致植物N:P增加。干旱、增温和N添加没有显著改变植物N和P浓度之间异速关系的斜率(即N和P浓度对数转换后的线性关系斜率α),但是显著增加了其截距(Logβ)。这些结果表明,全球变化因子可能不会影响植物N和P之间的协同变化关系,植物中N和P之间可能存在着紧密的耦合关系。这些结果将有助于我们更好地理解全球变化背景下的植物养分动态和元素平衡。 | Min Long Juanjuan Zhang Zhengyi Liu Luyao Zhou Fanglong Su Rui Xiao Yi Wang Hui Guo Shuijin Hu | 2020 | Journal of Plant Ecology2020，13，4： | 0 |
| 13 | Four Limit Cycles for a Rock-Scissor-Paper Game Between Bacteriocin Producing Bacteria显示文摘In this paper,four limit cycles are constructed for a concrete 3D model of rock-scissorpaper(RSP)game between bacteriocin producing bacteria.This gives not only an affirmative answer to the conjecture of the existence of three limit cycles raised by Zhang and Yan(2017),but also extends to an construction of four limit cycles. | MA Sibi HU Mingzhi LU Zhengyi | 2023 | Journal of Systems Science & Complexity2023，36，5： | 0 |
| 14 | Multi-objective optimal dispatch of household flexible loads based on their real-life operating characteristics and energy-related occupant behavior显示文摘A model-based optimal dispatch framework was proposed to optimize operation of residential flexible loads considering their real-life operating characteristics,energy-related occupant behavior,and the benefits of different stakeholders.A pilot test was conducted for a typical household.According to the monitored appliance-level data,operating characteristics of flexible loads were identified and the models of these flexible loads were developed using multiple linear regression and K-means clustering methods.Moreover,a data-mining approach was developed to extract the occupant energy usage behavior of various flexible loads from the monitored data.Occupant behavior of appliance usage,such as daily turn-on times,turn-on moment,duration of each operation,preference of temperature setting,and flexibility window,were determined by the developed data-mining approach.Based on the established flexible load models and the identified occupant energy usage behavior,a many-objective nonlinear optimal dispatch model was developed aiming at minimizing daily electricity costs,occupants’dissatisfaction,CO_(2) emissions,and the average ramping index of household power profiles.The model was solved with the assistance of the NSGA-III and TOPSIS methods.Results indicate that the proposed framework can effectively optimize the operation of household flexible loads.Compared with the benchmark,the daily electricity costs,CO_(2) emissions,and average ramping index of household power profiles of the optimal plan were reduced by 7.3%,6.5%,and 14.4%,respectively,under the TOU tariff,while those were decreased by 9.5%,8.8%,and 23.8%,respectively,under the dynamic price tariff.The outputs of this work can offer guidance for the day-ahead optimal scheduling of household flexible loads in practice. | Zhengyi Luo Jinqing Peng Maomao Hu Wei Liao Yi Fang | 2023 | Building Simulation2023，16，11： | 0 |
| 15 | Correction Factors of the Measurement Errors of the LAMOST-LRS Stellar Parameters显示文摘We aim to investigate the propriety of stellar parameter errors of the official data release of the LAMOST lowresolution spectroscopy(LRS)survey.We diagnose the errors of radial velocity(RV),atmospheric parameters([Fe/H],Teff,logg)andα-enhancement([α/M])for the latest data release version of DR7,including 6,079,235effective spectra of 4,546,803 stars.Based on the duplicate observational sample and comparing the deviation of multiple measurements to their given errors,we find that,in general,the error of[α/M]is largely underestimated,and the error of RV is slightly overestimated.We define a correction factor k to quantify these misestimations and correct the errors to be expressed as proper internal uncertainties.Using this self-calibration technique,we find that the k-factors significantly vary with the stellar spectral types and the spectral signal-to-noise ratio(S/N).Particularly,we reveal a strange but evident trend between k-factors and error themselves for all five stellar parameters.Larger errors tend to have smaller k-factor values,i.e.,they were more overestimated.After the correction,we recreate and quantify the tight correlations between S/N and errors,for all five parameters,while these correlations have dependence on spectral types.It also suggests that the parameter errors from each spectrum should be corrected individually.Finally,we provide the error correction factors of each derived parameter of each spectrum for the entire LAMOST-LRS DR7 and plan to update them for the later data releases. | Shuhui Zhang Guozhen Hu Rongrong Liu Cuiyun Pan Lu Li Zhengyi Shao | 2023 | Research in Astronomy and Astrophysics2023，23，1： | 0 |
| 16 | Acidic Magnetic Biocarbon-Enabled Upgrading of Biomass-Based Hexanedione into Pyrroles显示文摘Sustainable acquisition of bioactive compounds from biomass-based platform molecules is a green alternative for existing CO_(2)-emitting fossil-fuel technologies.Herein,a core–shell magnetic biocarbon catalyst functionalized with sulfonic acid(Fe3O4@SiO_(2)@chitosan-SO_(3)H,MBC-SO_(3)H)was prepared to be efficient for the synthesis of various N-substituted pyrroles(up to 99% yield)from bio-based hexanedione and amines under mild conditions.The abundance of Bronsted acid sites in the MBC-SO_(3)H ensured smooth condensation of 2,5-hexanedione with a variety of amines to produce N-substituted pyrroles.The reaction was illustrated to follow the conventional Pall-Knorr coupling pathway,which includes three cascade reaction steps:amination,loop closure and dehydration.The prepared MBC-SO_(3)H catalyst could effectively activate 2,5-hexanedione,thus weakening the dependence of the overall conversion process on the amine nucleophilicity.The influence of different factors(e.g.,reaction temperature,time,amount of catalyst,molar ratio of substrates,and solvent type)on the reaction activity and selectivity were investigated comprehensively.Moreover,the MBC-SO_(3)H possessed excellent thermochemical stability,reusability,and easy separation due to the presence of magnetic core-shell structures.Notably,there was no activity attenuation after 5 consecutive catalytic experiments.This work demonstrates a wide range of potential applications of developing functionalized core-shell magnetic materials to construct bioactive backbones from biomass-based platform molecules. | Zhimei Li Kuan Tian Keping Wang Zhengyi Li Haoli Qin Hu Li | 2023 | Journal of Renewable Materials2023，11，11： | 0 |
| 17 | A Neural Network for Weighted Least-Squares Criteria of Traveltime Tomography显示文摘ANeuralNetworkforWeightedLeast-SquaresCriteriaofTraveltimeTomography￥MaNing;HuZhengyi;WangYanpjng(CollegeofElectronicInformat... | Ma Ning Hu Zhengyi Wang Yanping | 1996 | Wuhan University Journal of Natural Sciences1996，1，2： | 0 |
| 18 | A Finite Difference Approach to the Diffusion Equation in Electrical Conductivity Tomography显示文摘AFiniteDifferenceApproachtotheDiffusionEquationinElectricalConductivityTomography￥CatQin;MaNing;HuZhengyi;WangYanping(College... | Cai Qin Ma Ning Hu Zhengyi Wang Yanping | 1996 | Wuhan University Journal of Natural Sciences1996，1，2： | 0 |
| 19 | Catalytic cascade acetylation-alkylation of biofuran to C_(17)diesel precursor enabled by a budget acid-switchable catalyst显示文摘Lignocellulosic biomass is a promising feedstock for the synthesis of value-added chemicals and biofuels.However,one of the biggest challenges for producing high-quality diesel fuels is the lack of sufficient carbon-chain length in biomass derivatives.In this study,a C_(17)diesel precursor 1,1,1-tris(5-methyl-2-f uryl)ethane(TEMF)with a yield of ca.70%was synthesized from the cascade acetylation-hydroxyalkyla tion/alkylation of bio-based 2-methylfuran(MF)with acetic anhydride(AA)catalyzed by acid-treated montmorillonite with enhanced acidity and improved porosity.The catalytic mechanism of the cascade reaction process was investigated over different types of acid species(Br?nsted acid and Lewis acid),and the influence of in situ formed acetic acid was also examined.A synergistic effect was observed to enable the synthesis of TEMF from the trimerization of MF with AA,in which Lewis acid and weak Br?nsted acid species mainly catalyze the acetylation and hydroxyalkylation processes,while the subsequent alkylation step is mainly catalyzed by strong Br?nsted acid. | Chuanhui Li Yuanzhong Li Xiaoxiang Luo Zhengyi Li Heng Zhang Hu Li Song Yang | 2021 | Chinese Journal of Chemical Engineering2021，34，6： | 0 |
| 20 | An Improved Iterative Reconstruction Algorithm for Traveltime Tomography显示文摘AnImprovedIterativeReconstructionAlgorithmforTraveltimeTomography￥MaNing;HuZhengyi;TangXueyuan;WangYanping(CollegeofElectroni... | Ma Ning Hu Zhengyi Tang Xueyuan Wang Yanping (College of Electronic information,Wuhan University,Wuhan, 430072,China) | 1996 | Wuhan University Journal of Natural Sciences1996，1，1： | 0 |
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