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| 1 | Statistical and thermodynamic properties of binary self-condensing vinyl polymerization显示文摘The thermodynamic properties of a binary self-condensing vinyl polymerization system consisting of monomers and inimers are investigated by the principle of statistical mechanics.In detail,in terms of two types of canonical partition functions constructed from different viewpoints,the equilibrium free energy,the law of mass action and the size distribution of hyperbranched polymers are obtained.As an application,the specific heat,equation of state and isothermal compressibility concerning the polymerization are given as well.To study the dimension of hyperbranched polymers in the system,a recursion formula satisfied by the(k+1)-th and k-th mean square radius of gyration is derived,and then the first,second and third radius of gyration under different solvent conditions are presented.The influences of the fraction of inimers,the conversion of vinyl groups and the solvent effect on the average dimension of hyperbranched polymers are discussed. | GU Fang WANG HaiJun ZHAO ZuoFei | 2011 | Science China Chemistry2011，54，3： | 5 |
| 2 | First experimental constraints on WIMP couplings in the effective field theory framework from CDEX显示文摘We present weakly interacting massive particles(WIMPs) search results performed using two approaches of effective field theory from the China Dark Matter Experiment(CDEX), based on the data from both CDEX-1B and CDEX-10 stages. In the nonrelativistic effective field theory approach, both time-integrated and annual modulation analyses were used to set new limits for the coupling of WIMP-nucleon effective operators at 90% confidence level(C.L.) and improve over the current bounds in the low mχregion. In the chiral effective field theory approach, data from CDEX-10 were used to set an upper limit on WIMP-pion coupling at 90% C.L. We for the first time extended the limit to the m_(χ)<6 GeV/c^(2) region. | Yi Wang Zhi Zeng Qian Yue LiTao Yang KeJun Kang YuanJing Li Mehment Agartioglu HaiPeng An JianPing Chang JingHan Chen YunHua Chen JianPing Cheng Cheng Yi Chiang WenHan Dai Zhi Deng ChangHao Fang XinPing Geng Hui Gong QiuJu Guo XuYuan Guo HongJian He Li He ShengMing He JinWei Hu TuChen Huang HanXiong Huang HaiTao Jia LiPing Jia Xi Jiang HauBin Li JianMin Li Jin Li MingXuan Li RenMingJie Li Xia Li YuLan Li Bin Liao FongKay Lin ShinTed Lin ShuKui Liu YanDong Liu Yu Liu YuanYuan Liu ZhongZhi Liu Hao Ma YuCai Mao QiYuan Nie JinHua Ning Hui Pan NingChun Qi Jie Ren XiChao Ruan ChangSong Shang Vivek Sharma Ze She Lakhwinder Singh Monoj Kumar Singh TianXi Sun ChangJian Tang WeiYou Tang Yang Tian GuangFu Wang Li Wang Qing Wang Yu Chen Wang YunXiang Wang Zhen Wang Henry Tsz-King Wong ShiYong Wu YuCheng Wu HaoYang Xing Yin Xu Tao Xue YuLu Yan Nan Yi ChunXu Yu HaiJun Yu JianFeng Yue Ming Zeng BingTao Zhang Lei Zhang FengShou Zhang ZhenYu Zhang KangKang Zhao MingGang Zhao JiFang Zhou ZuYing Zhou JingJun Zhu | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，8： | 3 |
| 3 | From unusual suspect to serial killer: Cyanotoxins boosted by climate change may jeopardize megafauna显示文摘The recent mass mortality event of more than 330 African elephants in Botswana has been attributed to biotoxins produced by cyanobacteria;however,scientific evidence for this is lacking.Here,by synthesizing multiple sources of data,we show that,during the past decades,the widespread hypertrophic waters in Southern Africa have entailed an extremely high risk and frequent exposure of cyanotoxins to the wildlife within this area,which functions as a hotspot of mammal species richness.The hot and dry climatic extremes have most likely acted as the primary trigger of the recent and perhaps also of prehistoric mass mortality events.As such climate extremes are projected to become more frequent in Southern Africa in the near future,there is a risk that similar tragedies may take place,rendering African megafauna species,especially those that are already endangered,in risk of extinction.Moreover,cyanotoxin poisoning amplified by climate change may have unexpected cascading effects on human societies.Seen within this perspective,the tragic mass death of the world's largest terrestrial mammal species serves as an alarming early warning signal of future environmental catastrophes in Southern Africa.We suggest that systematic,quantitative cyanotoxin risk assessments are made and precautionary actions to mitigate the risks are taken without hesitation to ensure the health and sustainability of the megafauna and human societies within the region. | Haijun Wang Chi Xu Ying Liu Erik Jeppesen Jens-Christian Svenning Jianguo Wu Wenxia Zhang Tianjun Zhou Puze Wang Shingirai Nangombe Jinge Ma Hongtao Duan Jingyun Fang Ping Xie | 2021 | The Innovation2021，2，2： | 3 |
| 4 | Statistical theory for a hydrogen bonding fluid system of A_aD_d type (Ⅳ): Depletion potential between colloid particles显示文摘The depletion potential between two colloid particles immersed in a hydrogen bonding fluid has been investigated by density functional theory. The study is motivated by the wide applications of hydrogen bonding fluids in the field of colloid science, and the effects of relevant factors on the depletion potential and depletion force between colloid particles have been studied. These factors include the size ratio of the colloid particle to the fluid molecule, the bulk density of the fluid, the functionality (the number of proton acceptors a and proton donors d) and hydrogen bonding strength as well as the colloid-fluid interaction energy. By comparing the depletion potential calculated under various conditions, it is shown that the effects of these factors on the depletion potential are very significant, and in particular in regulating the depletion force and its range. | GU Fang WANG HaiJun LI JiangTao | 2012 | Science China Chemistry2012，55，6： | 2 |
| 5 | Anisotropy-Related Machining Characteristics in Ultra-Precision Diamond Cutting of Crystalline Copper显示文摘Deformation behavior at grain levels greatly affects the machining characteristics of crystalline materials.In the present work,we investigate the influence of material anisotropy on ultra-precision diamond cutting of single crystalline and polycrystalline copper by experiments and crystal plasticity finite element simulations.Specifically,diamond turning and in situ SEM orthogonal cutting experiments are carried out to provide direct experimental evidence of the material anisotropy-dependent cutting results in terms of machined surface morphology and chip profile.Corresponding numerical simulations with the analysis of built stress further validate experimental results and reveal the mechanisms governing the material anisotropy influence.The above findings provide insight into the fabrication of ultra-smooth surfaces of polycrystalline metals by ultraprecision diamond turning. | Zhanfeng Wan Junjie Zhang Guo Li Zongwei Xu Haijun Zhang Jianguo Zhang Alexander Hartmaier Fengzhou Fang Yongda Yan Tao Sun | 2020 | Nanomanufacturing and Metrology2020，3，2： | 2 |
| 6 | Efficacy of Sanqi(Radix Notoginseng)in treating cerebral hemorrhage in rats with traumatic brain injury显示文摘OBJECTIVE:To evaluate the protective efficacy of Sanqi(Radix Notoginseng)on cerebral hemorrhage in a rat model of traumatic brain injury(TBI)by investigating plasminogen activator inhibitor-1(PAI-1),tissue-type plasminogen activator(t-PA),nuclear factor-κB(NF-κB,p-p65),nitric oxide(NO),endothelin(ET),cluster differentiation(CD61CD62),and coagulation.METHODS:The free-fall method was used to create a rat model of TBI.Forty-eight rats were randomly divided into six groups:the blank group,sham group,model group,low-dose Sanqi(Radix Notoginseng)group,middle-dose Sanqi(Radix Notoginseng)group,and high-dose Sanqi(Radix Notoginseng)group.At 24 h after the model was created,we investigated brain MRI,brain tissue morphology using HE staining,flow cytometry,and immunohistochemical changes.RESULTS:Cerebral hemorrhage was aggravated in TBI rats(observed in brain specimens,brain MRI,and brain tissue HE).Cerebral immunohistochemistry results demonstrated that the expression of t-PA,PAI-1 and p-p65 increased significantly in TBI rats,while t-PA/PAI-1 had a significant decrease.In addition,CD61CD62,D2D,and ET were significantly increased in TBI rats,and PT and APTT were significantly prolonged;in contrast,NO was significantly decreased.Sanqi(Radix Notoginseng)decreased cerebral hemorrhage in TBI rats(observed in brain MRI and brain tissue HE),and increased t-PA/PAI-1,CD61CD62 significantly.It also significantly decreased the expression of t-PA,PAI-1,and p-p65 in brain immunohistochemistry and significantly decreased PT,APTT,D2D,and ET.However,there were no differences in NO between the model group and the Sanqi(Radix Notoginseng)group.CONCLUSION:Sanqi(Radix Notoginseng)can decrease the expression of p-p65,increase t-PA/PAI-1,and stem traumatic intracranial hemorrhage in a TBI rat model. | JIANG Tao ZHOU Xiaqing JIANG Huifang YING Rongbiao ZHANG Zhirong CAI Danli WU Yu FANG Haijun WANG Lingcong | 2021 | Journal of Traditional Chinese Medicine2021，41，2： | 2 |
| 7 | L2 gain analysis for a class of switched systems显示文摘 | Liang Lu Zhongli Lin Haijun Fang | 2009 | Automatica2009，45，4： | 1 |
| 8 | Design of switched linear systems in the presence of actuator saturation and L-infinity disturbances显示文摘This paper considers the problem of disturbance tolerance/rejection of a switched system resulting from a family of linear systems subject to actuator saturation and L-infinity disturbances.For a given set of linear feedback gains,a given switching scheme and a given bound on the L-infinity norm of the disturbances,conditions are established,in terms of linear or bilinear matrix inequalities,under which a set of a certain form is invariant for a given switched linear system in the presence of actuator saturation and L-infinity disturbances,and the closed-loop system possesses a certain level of disturbance rejection capability.With these conditions,the design of feedback gains and switching scheme can be formulated and solved as constrained optimization problems.Disturbance tolerance is measured by the largest bound on the disturbances for which the trajectories starting from a given set remain bounded.Disturbance rejection is measured either by the L-infinity norm of the system output or by the system’s ability to steer its state into and/or keep it within a small neighborhood of the origin.In the event that all systems in the family are identical,the switched system reduces to a single system under a switching feedback law.Simulation results show that such a single system under a switching feedback law could have stronger disturbance tolerance/rejection capability than a single linear feedback law can. | Liang LU Zongli LIN Haijun FANG | 2010 | 控制理论与应用(英文版)2010，8，3： | 1 |
| 9 | Analysis of linear systems in the presence of actuator saturation and-disurbances显示文摘 | Haijun Fang Zongli Lin Tingshu Hu | 2004 | Automatica2004，40，： | 1 |
| 10 | Design of Landscape Ecological Restoration for “Five Mining Areas” of the Laoqing Mountain in the Dianchi Lake Basin显示文摘Through analyzing basic conditions of the 'five mining areas' in the Laoqing Mountain of the Dianchi Lake Basin, in Kunming City, South China, the ecological restoration design of 'integrating engineering protection and biological restoration, building the landscape ecological security pattern of the Laoqing Mountain' was proposed. Considering the different ecological functional areas, varying engineering measures, greening patterns, and irrigation means were selected for the ecological restoration, including site management, vegetation restoration, management and utilization etc.. These ecological restoration measures will produce favorable ecological benefits, and also take landscape effect and sustainable development into consideration, which will contribute to the ecological restoration of the 'five mining areas', and provide a scientific and feasible reference for the ecological restoration in China. | ZHU Guofei HU Yeqing LONG Haijun CAI Fang SHE Lihua | 2019 | Journal of Landscape Research2019，11，2： | 1 |
| 11 | Stability Analysis for linear systems under state constraints显示文摘 | HaiJun - Fang Zongli -Lin | 2004 | IEEE Transactions on Automatic Control2004，49，6： | 1 |
| 12 | Stability Analysis for Linear Systems Under State Constraints 显示文摘 | FANG Haijun LIN Zongli | 2004 | IEEE Transaction on Automatic Con- trol2004，46，9： | 1 |
| 13 | Summary of collapsible behaviour of artificially structured loess in oedometer and triaxialwetting tests 显示文摘 | JIANG Mingjing HU Haijun LIU Fang | 2012 | Can Geotech J2012，49，10： | 1 |
| 14 | Omicron adopts a different strategy from Delta and other variants to adapt to host显示文摘Dear Editor,With the ongoing of Corona Virus Disease 2019(COVID-19)epidemic,new strains of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)are continuously emerging.After Delta(B.1.617.2)identified in India,Lambda(C.37),Mu(B.1.621),and Omicron(B.1.1.529)were successively found in Peru,Colombia,and Botswana/South Africa,and subsequently defined as variant of interest(VOI)or variant of concern(VOC). | Xiaohong Du Haijun Tang Long Gao Zhao Wu Fang Meng Ruhong Yan Shigang Qiao Jianzhong An Chen Wang F.Xiao-Feng Qin | 2022 | Signal Transduction and Targeted Therapy2022，7，3： | 1 |
| 15 | L2 gain analysis for a class of switched systems 显示文摘 | LV Liang LIN Zongli FANG Haijun | 2009 | Automatica2009，45，1： | 1 |
| 16 | Blood circulation activating effect of Sanqi(Radix Notoginseng) on venous thromboembolism rats显示文摘OBJECTIVE:To explore the blood circulation activating effect and mechanism of Sanqi(Radix Notoginseng)in vivo,using a venous thromboembolism(VTE)rat model.METHODS:We established the VTE rat model,and then intervened with low molecular weight hepa-rin(LMWH),as well as low,medium and high doses of Sanqi(Radix Notoginseng),to observe the blood circulation activating effect of Sanqi(Radix Notoginseng)on VTE rats.RESULTS:After the treatment with high concentrations of Sanqi(Radix Notoginseng),the pulmonary thromboembolism was alleviated,and the lower limb thrombosis was markedly improved.Moreover,the expression quantities of plasma activated partial thromboplastin time,prothrombin time and D-dimer,as well as endothelin,von Willebrand factor,and plasminogen activator inhibitor-1 in thrombosis segment tissues were markedly down-regulated;while those of nitric oxide and tissue-type plasminogen activator were up-regulated.After low and medium concentration Sanqi(Radix Notoginseng)treatment,no obvious improvement was observed in each index.Moreover,the high concentration Sanqi(Radix Notoginseng)showed comparable efficacy to the positive drug LMWH.CONCLUSION:This data suggests that high concentration of Sanqi(Radix Notoginseng)is effective in preventing and treating VTE. | ZHU Chen JIANG Huifang ZHOU Xiaqing ZHANG Zhirong WU Yu FANG Haijun WANG Lingcong | 2021 | Journal of Traditional Chinese Medicine2021，41，5： | 1 |
| 17 | L2 gain analysis for a class of switched systems显示文摘 | LU Liang LIN Zongli FANG Haijun | 2009 | Automatica2009，45，4： | 1 |
| 18 | Geochemical Characteristics and Gas-to-Gas Correlation of Two Leakage-type Gas Hydrate Accumulations in the Western Qiongdongnan Basin, South China Sea显示文摘In recent years,a series of highly saturated leakage-type gas hydrates have been discovered in the western Qiongdongnan Basin(QDNB),South China Sea.Based on the molecular compositional and isotopic characteristics of the gas samples relevant to the gas hydrates collected from the two leakage-type gas hydrate accumulations in the GMGS5 and GMGS6 drilling zones,a detailed geochemical gas-to-gas correlation was conducted in this study,in order to further understand the geochemical characteristics and possible hydrocarbon sources of these gas hydrates.The natural gas relevant to the gas hydrates in the GMGS5 block is characterized by wet gas(67.96%<%C_(1)<98.58%,C_(1)/C_(1+)<0.9)and significant molecular and carbon isotope fractionation within the depth profile,whereas the gas samples from the GMGS6 block exhibit the characteristics of dry gas(99.25%<%C_(1)<99.81%,C_(1)/C_(1+)>0.9)and lack molecular and carbon isotope fractionation.Approximately 40%‒60%of the methane within the gas hydrate is of microbial origin,while the C^(2+)gas components are typical coal-type gas that are derived from thermogenic source rocks or deeply-buried natural gas fields.In addition,typical in situ primary microbial methane(−80.6‰<δ^(13)C-C_(1)<−67.7‰)was discovered in well W b,which was applied to estimate the contribution of the microbial gas to the gas hydrates.The gas-to-gas correlation results show that the hydrate gases within the two leakage-type gas hydrate accumulations in the GMGS5 and GMGS6 blocks are geochemically different,suggesting that they may have been derived from different source kitchens.Our results further indicate that the deeply-buried thermogenic gas significantly contributed to the shallowly-buried gas hydrates in the western QDNB and multiple effective thermogenic source kitchens provided the hydrocarbon gas in the gas hydrate accumulations. | LAI Hongfei QIU Haijun LIANG Jinqiang KUANG Zenggui FANG Yunxin REN Jinfeng LU Jing’an | 2022 | Acta Geologica Sinica(English Edition)2022，96，2： | 1 |
| 19 | Co-gasification Behavior of Meat and Bone Meal Char and Coal Char显示文摘 | Ren Haijun Zhang Yongqi Fang Yitian | 2011 | Fuel Processing Technology2011，92，3： | 1 |
| 20 | Evolutionary characteristics of SARS-CoV-2 Omicron subvariants adapted to the host显示文摘Dear Editor,As the COVID-19 epidemic proceeds,new variants of SARS-CoV-2 continue to emerge.^(1)Particularly the B.1.1.529(Omicron)variant emerged and spread globally,surpassing the previously dominant B.1.617.2(Delta)variant.Moreover,the original Omicron variant continued to mutate into numerous Omicron sublineages.Nonetheless,the infectious and immune characteristics of newly-emerged Omicron sublineages that have evolved to adapt to the host remain unclear. | Haijun Tang Yun Shao Yi Huang Shigang Qiao Jianzhong An Ruhong Yan Xin Zhao Fang Meng Xiaohong Du F.Xiao-Feng Qin | 2023 | Signal Transduction and Targeted Therapy2023，8，6： | 0 |
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