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Organized Warm-Sector Rainfall in the Coastal Region of South China in an Anticyclone Synoptic Situation:Observational Analysis

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Journal of Meteorological Research 2021年第3期35卷 460-477页

作者： Zhaoming liang Shouting gao State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing 100081 Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082 Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029 University of Chinese Academy of Sciences Beijing 100049

Organized warm-sector rainfall(OWSR)near the coast of South China tends to occur in certain synoptic situations characterized with either a low-level jet or an anticyclone,with the latter being less *** paper fills the gap by analyzing 15 OWSR events that occurred in an anticyclone synoptic situation during the pre-summer rainy season of 2011-2016,based on high-resolution observational and reanalysis *** results show that the anticyclone synoptic situation produces marked northerly boundary-layer winds inland and obvious northeasterly,easterly/southwesterly,and southeasterly boundary-layer winds near the coasts of eastern Guangdong,western Guangdong,and Guangxi,*** coastal boundary-layer winds promote favorable environmental conditions and strong convergence for convection initiation;consequently,OWSR is prone to occur near the coasts of western Guangdong and Guangxi,but exhibits different formation and propagation features in the following two subareas.(1)The southeasterly boundary-layer winds tend to converge near the border area between Guangxi and Guangdong(BGG),promoting the formation of a stable convective line along the *** convective line persists with support of upper-level southwesterly winds that facilitate convective cells to propagate along the convective line,producing heavy OWSR along the mountains near BGG.(2)In contrast,a west-east convective line tends to form and maintain near the coast of Yangjiang(YJ)area,about 200 km east of BGG,owing to stable convergence between the easterly(or southwesterly)and the northerly boundary-layer winds reinforced by the mountains near ***,the coupling of upper-level westerly winds with the easterly(southwesterly)boundary-layer winds facilitates expansion(eastward propagation)of the convective line,causing west-east-oriented heavy OWSR near the coast of *** a word,this study reveals refined properties of OWSR initiation and development in the anticyclone synoptic s

关键词： organized warm-sector rainfall(OWSR) anticyclone synoptic situation formation South China

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Converting carbon dioxide into alkanes via alkane reverse combustion reaction

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Science Bulletin 2016年第15期61卷 1160-1162页

作者： Yafei gao liang Deng State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of SciencesShanghai 200032 China University of Chinese Academy of Sciences Beijing 100049China

Energy crisis and environmental degradation are the two most server challenges to modern humane ***,fossil fuels are the main energy resource used by *** combustion of fossil fuels generates energy and at the same time produces CO_2 and H_*** with the world’s soaring energy consumption,the depleting of fossil fuel resources on earth and the accumulation of the greenhouse gas,CO_2,in atmosphere have raised

关键词：二氧化碳转化燃烧反应烷烃能源危机化石燃料环境恶化能源消费温室气体

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Unlocking the stable interface in aqueous zinc-ion battery with multifunctional xylose-based electrolyte additives

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Journal of Energy Chemistry 2025年第1期100卷 770-778页

作者： Xiaoqin Li Jian Xiang Lu Qiu Xiaohan Chen Yinkun Zhao Yujue Wang Qu Yue Taotao gao Wenlong Liu Dan Xiao Zhaoyu Jin Panpan Li Institute for Advanced Study Chengdu University School of Mechanical Engineering Chengdu University College of Food and Biological Engineering Chengdu University Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China College of Materials Science and Engineering Sichuan University

The growth of dendrites and the side reactions occurring at the Zn anode pose significant challenges to the commercialization of aqueous Zn-ion batteries（AZIBs）. These challenges arise from the inherent conflict between mass transfer and electrochemical kinetics. In this study, we propose the use of a multifunctional electrolyte additive based on the xylose（Xylo） molecule to address these issues by modulating the solvation structure and electrode/electrolyte interface, thereby stabilizing the Zn anode. The introduction of the additive alters the solvation structure, creating steric hindrance that impedes charge transfer and then reduces electrochemical kinetics. Furthermore, in-situ analyses demonstrate that the reconstructed electrode/electrolyte interface facilitates stable and rapid Zn2+ion migration and suppresses corrosion and hydrogen evolution reactions. As a result, symmetric cells incorporating the Xylo additive exhibit significantly enhanced reversibility during the Zn plating/stripping process, with an impressively long lifespan of up to 1986 h, compared to cells using pure ZnSO4electrolyte. When combined with a polyaniline cathode, the full cells demonstrate improved capacity and long-term cyclic stability. This work offers an effective direction for improving the stability of Zn anode via electrolyte design, as well as highperformance AZIBs.

关键词： Solvation

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Thermal recovery process of a backfilled open-pit in permafrost area at the Gulian strip coal mine in Northeast China

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Journal of Mountain Science 2017年第11期14卷 2212-2229页

作者： gao Shu-hui HE Rui-xia JIN hui-jun HUANG Ya-dong ZHANG Jian-ming LUO Dong-liang State Key Laboratory of Frozen Soils Engineering Northwest Institute of Eco-environment and Resources Chinese Academy of Sciences University of Chinese Academy of Sciences School of Civil Engineering Harbin Institute of Technology

Timely and proper backfilling of open-pits in strip coal-mines has been an effective measurement for the recovery of the hydrothermal regimes and ecological environment in permafrost regions. In this study, numerical simulations and statistical regressions were applied for analyzing the recovery processes of the backfill and its major influencing factors for the thermal equilibrium in recently backfilled open pits at the Gulian strip coalmine in Mo'he, Northeast China. Results show that the thermal recovery time of backfilled areas is positively correlated to the backfill depth(BD) of the soils, the backfilled soil temperature(BST), and the mean annual ground surface temperature(MAGST); meanwhile, climate warming can impact on thermal regimes of the backfill area. The impact of climate warming on ground temperature of the backfill will show up significantly in about 50 years afterbackfilling(BD at 10.0 and 20.0 m, BST at 20.0°C) under the climate warming scenario(CWS) of 0.025°C·year ^(-1). Grey-relation analyses show that the sensitivity of the backfill recovery time declines in the order of the BD, BST and MAGST. On the basis of the abovementioned studies, the layer-by-layer backfilling in cold seasons is advised for more effective and more rapid recovery of thermal regimes of the backfilled open-pits in cold regions.

关键词： Coal-mine open-pit backfill Numericalsimulation Thermal recovery process Sensitivityanalysis Gulian strip coal mine

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Growth and alkaline phosphatase activity of Chattonella marina and Heterosigma akashiwo in response to phosphorus limitation

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Journal of Environmental Sciences 2015年第2期27卷 1-7页

作者： Zhao-hui Wang Yu liang College of Life Science and Technology Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education InstitutesJinan University

The growth and alkaline phosphatase activity（APA） of two raphidophyceae species Chattonella marina and Heterosigma akashiwo were investigated in response to P-limitation and subsequent addition of dissolved inorganic phosphorus（DIP, Na H2PO4） and two dissolved organic phosphorus（DOP） compounds： guanosine 5-monophosphate（GMP） and triethyl phosphate（TEP）. APA levels increased greatly after P-starvation as the decrease of the cellular phosphorus quotes（Qp）. C. marina responded to P-limitation quickly and strongly, with 10-fold increase in APA within 24 hr after P-starvation. The larger difference between maximal and minimal QP values in C. marina indicated its high capacity in P storage. APA of H. akashiwo was maximally enlarged about 2.5 times at 48 hr of P-starvation. After the addition of nutrients, cell numbers of C. marina increased in all treatments including the P-free culture, demonstrating the higher endurance of C. marina to P-limitation. However, those of H. akashiwo increased only in DIP and GMP cultures. APA increased only after the addition of the monophosphate ester GMP. The results suggest that quick responses of C. marina to P-limitation, high capacity in P storage as well as endurance for P-depletion provide this species an ecological advantage in phytoplankton community competition under DIP-limited conditions.

关键词： Alkaline phosphatase Dissolved inorganic phosphorus Dissolved organic phosphorus Growth Phytoplankton

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Microstructure and wear resistance of AlCrFeNiMo_(0.5)Si_(x) high-entropy alloy coatings prepared by laser cladding

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China Foundry 2022年第6期19卷 473-480页

作者： Xiao-cong Li hui liang Yan-zhou Zhao Li gao Li Jiang Zhi-qiang Cao Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian 116024LiaoningChina School of Physics and Electronic Technology Liaoning Normal UniversityDalian 116029LiaoningChina

In recent years,the coating prepared by laser cladding has attracted much attention in the field of wear *** this work,AlCrFeNiMo_(0.5)Si_(x)(x=0,0.5,1.0,1.5,2.0)high-entropy alloy coatings were designed and prepared on Q235 steel by laser *** effect of Si content on microstructure,microhardness and wear resistance of the coatings was studied in *** results indicate that the AlCrFeNiMo_(0.5)Si_(x) highentropy alloy coatings show an excellent bonding between substrate and the cladding *** AlCrFeNiMo_(0.5)Si_(x) coatings are composed of nano-precipitated phase with BCC structure and matrix with ordered B2 *** the addition of Si,the white phase(Cr,Mo)_(3)Si with cubic structure appears in the interdendritic,and the morphology of the coating(x=2.0)transforms into lamellar eutectic-like *** addition of Si enhances the microhardness and significantly improves the wear resistance of the *** x increases from 0 to 2.0,the average hardness of the cladding zone increases from 632 HV to 835 HV,and the wear rate decreases from 1.64×10^(-5) mm^(3)·(N·m)^(-1) to 5.13×10^(-6) mm^(3)·(N·m)^(-1).When x≥1.5,the decreasing trend of the wear rate gradually slows *** wear rates of Si1.5 and Si2.0 coatings are 5.85×10^(-6) mm^(3)·(N·m)^(-1) and 5.13×10^(-6) mm^(3)·(N·m)^(-1),respectively,which is an order of magnitude lower than that of Q235 steel.

关键词： high-entropy alloy coatings laser cladding microstructure wear resistance

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Impacts of grazing and mowing on reproductive behaviors of Stipa grandis and Stipa krylovii in a semi-arid area

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Journal of Arid Land 2014年第1期6卷 97-104页

作者： hui gao YuBao gao XingDong HE College of Life Sciences Nankai University

Disturbance can affect biomass allocation of plants,but can it influence plant reproductive behavior?To address this issue,we performed field plant community investigations and explored the reproductive behaviors of Stipa grandis and Stipa krylovii in response to grazing and mowing treatments at Maodeng pasture of Xilinguole League of Inner Mongolia,China during 2007–*** results showed that,with a similar niche width for the two plant species under mowing and grazing treatments,mowing significantly increased the ratio of ramet to genet number of *** and the carbon to nitrogen ratio of ***,and grazing significantly decreased the ratio of vegetative to reproductive tiller biomass of *** and increased the ratio of vegetative to reproductive tiller number of *** analysis showed that the significantly positive effect of root to shoot biomass ratio was stronger on the ratio of vegetative to reproductive tiller number of *** than on that of *** results indicated that grazing and mowing influenced the reproductive manner and the process of sexual reproduction of *** and ***.

关键词： Stipa grandis Stipa krylovii disturbance Maodeng pasture reproductive strategy

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An integrated preforming-performance model for high-fidelity performance analysis of cured woven composite part with non-orthogonal yarn angles

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Chinese Journal of Aeronautics 2022年第6期35卷 367-378页

作者： Biao liang Sasa gao Weizhao ZHANG School of Mechanical Engineering Northwestern Polytechnical UniversityXi’an 710072China College of Mechanical&Electrical Engineering Shaanxi University of Science&TechnologyXi’an 710021China Department of Mechanical and Automation Engineering The Chinese University of Hong KongHong KongChina

Preforming process would change yarn angle and yarn orientation,its influence on the material properties and material orientations needs to be considered in the performance ***,most current performance models fail to account for the preforming *** integrated performance model accounting for the impact of preforming has been *** this integrated model,part geometry,yarn angle and orientation after preforming of multiple prepreg layers are predicted by Finite Element Analysis(FEA)using a non-orthogonal constitutive *** were conducted to validate the preforming simulation for a single dome composites structure made by two prepreg layers with different initial fiber *** analysis until failure was then conducted for the single dome structure to validate the integrated performance *** between simulation and experiment shows that not only the failure mode and failure zone,but also the force-displacement curve during compression process are captured correctly by the performance model,demonstrating the effectiveness of the newly proposed model in accounting for the impact of preforming process.

关键词： Mechanical properties Non-orthogonal model Performance analysis Woven composites Yarn angle

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Anomalies in Special Permutation Flow Shop Scheduling Problems

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Chinese Journal of Mechanical Engineering 2020年第3期33卷 53-59页

作者： Lin Gui liang gao Xinyu Li State Key Laboratory of Digital Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhan 430074China

Recent researches show that there are some anomalies,which are not satisfied with common sense,appearing in some special permutation flow shop scheduling problems(PFSPs).These anomalies can be divided into three different types,such as changing the processing time of some operations,changing the number of total jobs and changing the number of total *** paper summarizes these three types of anomalies showing in the special PFSPs and gives some examples to make them better *** extended critical path is proposed and the reason why these anomalies happen in special PFSPs is given:anomalies will occur in these special PFSPs when the time of the operations on the reverse critical path *** that,the further reason for these anomalies is presented that when any one of these three types of anomalies happens,the original constraint in the special PFSPs is destroyed,which makes the anomalies ***,the application of these anomalies in production practice is given through examples and also with the possible research *** main contribution of this research is analyzing the intial reason why the anomalies appear in special PFSPs and pointing out the application and the possible research directions of all these three types of anomalies.

关键词： Scheduling Permutation flow shop Anomaly

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Effect of Fuzheng Jiedu granule on immunological function and level of immune-related cytokines in immune-suppressed mice

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Journal of Integrative Agriculture 2016年第3期15卷 650-657页

作者： YU Zhan-mei HUANG Xian-hui YAN Chao-qun gao Jin liang Zi-sen Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation College of Veterinary Medicine South China Agricultural University

Fuzheng Jiedu granule exhibits a number of health benefits and it is thought that the mechanisms involved in these effects are due to the modulation of immunity. In this article, we studied the effect of Fuzheng Jiedu granule on immunological function and the expression of immune-related cytokines in immune-suppressed mice. 72 mice were randomly divided into six groups, with 12 in each group. The control groups included an untreated group, a negative control group（Cyclophosphamide） and a positive control group（Astragalus polysaccharide）. There were three treated groups, which were given different doses of Fuzheng Jiedu granule： a low dose（100 mg kg^（–1））, a medium dose（400 mg kg^（–1）） and a high dose（600 mg kg^（–1））. With the exception of the untreated control animals, each group received an intraperitoneal injection of Cyclophosphamide（100 mg kg^（–1）） for 3 days to establish the immune-suppressed model. Mice were then treated for 19 consecutive days and, 24 h after the last treatment, blood was taken for the eyeballs and serum separation was performed. Analysis was made of the levels of related cytokines（IgA, IgG, IgM, IL-6, IFN-γ, C3, C4 and TNF-α）, the transformation of lymphocytes and the immune organ indexes. The results showed that Fuzheng Jiedu granule can improve the levels of cytokines, the rate of proliferation of lymphocytes and the immune organ indexes of immune-suppressed mice.

关键词： Fuzheng Jiedu granule immune suppression cytokines lymphocytes immune organ index

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