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69篇 您的检索式:作者名="Jianling LI"
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1Characteristics of the genetic mineralogy of pyrite and its significance for prospecting in the Denggezhuang gold deposit,Jiaodong Peninsula,China显示文摘This paper reports the variation rules for the typomorphic parameters of the pyrite and the gold enrichment rules of the Denggezhuang quartz vein gold deposit at a large-depth scale,providing the mineral signs for deep prospecting prediction through detailed study of the characteristics of crystal' habits,chemical composition,the thermoelectricity of pyrites,and mineralogical mapping.This paper primarily discusses the correlation between the mineralization intensity and the space-time evolution of the mineralogical parameters,clarifies the physicochemical conditions during gold mineralization,and provides information useful for deep mineralization prediction.We demonstrate that the crystal habits of the pyrites are very complex,primarily occurring as {100},{210},and their combinate form.{210} and {100}+{210} have positive correlations with gold mineralization,and {100}+{210} therefore can be useful for locating rich ore segments.The composition of pyrites is characteristically poor in S and rich in As.Their typical trace elements are composed of Mo,As,Pb,Cu,Bi,Zn,Au,Co,Se,Sb,Ag,Ni,Cr,and Te.The average contents of trace elements in pyrites from various stages show that the crystallizing temperature gradually decreased from an early stage to the metallogenic episodes.The precipitation and accumulation of Au and Ag occur primarily in the quartz-pyrite stage(III) and the polymetal minerals stage(IV).The occurrence rate of P-type pyrites(P(%)) is 83.52%.There is a larger dispersion of the thermoelectrical coefficient of pyrite(α) in the Denggezhuang gold deposit than in other deposits in the Jiaodong Peninsula.The electrical conductivity assemblage of pyrites from I to V is characterized by P≥N→P>N→P>>N→P>>N→P≥N,which is usually considered beneficial for mineralization.The relative contents of As+Sb+Se+Te and Co+Ni are closely correlated to P-type and N-type average values and their occurrence rates.According to the crystallizing temperature of pyrite,the mineralization intensity,and the denudation degree,the mineralization temperature of the Denggezhuang gold deposit is in the range of 150–322℃ and is of a medium-low temperature.The orebody has already become denuded to the top-middle of the orebody,and the size of the orebody is larger than 900 m.Based on the vertical zoning of the thermoelectrical coefficients of pyrites and P-type pyrite mapping,it is suggested that the segment between ?425 and ?800 m may have exploration potential to the northeast of line 94 of the No.I2-2 orebody.XUE JianLing LI ShengRong SUN WenYan ZHANG YunQiang ZHANG Xu 2014Science China Earth Sciences2014,57,4:12
2Insight-HXMT observations of the first binary neutron star merger GW170817显示文摘Finding the electromagnetic(EM) counterpart of binary compact star merger, especially the binary neutron star(BNS) merger,is critically important for gravitational wave(GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart,GRB 170817 A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope(HE) onboard Insight-HXMT(Hard X-ray Modulation Telescope) is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart(SSS17 a/AT2017 gfo) with very large collection area(~1000 cm^2) and microsecond time resolution in 0.2-5 MeV. In addition,Insight-HXMT quickly implemented a Target of Opportunity(ToO) observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy(0.2-5 MeV) radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817 A. Meanwhile,Insight-HXMT/HE provides one of the most stringent constraints(~10^(-7) to 10^(-6) erg/cm^2/s) for both GRB170817 A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event.TiPei Li ShaoLin Xiong ShuangNan Zhang FangJun Lu LiMing Song XueLei Cao Zhi Chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang ZiLiang Zhang HaiSheng Zhao JianLing Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu ChangLin Zou 2018Science China(Physics,Mechanics & Astronomy)2018,61,3:12
3MOF-derived molybdenum selenide on Ti_(3)C_(2)T_(x) with superior capacitive performance for lithium-ion capacitors显示文摘Two-dimensional Ti_(3)C_(2)T_(x) exhibits outstanding rate property and cycle performance in lithium-ion capacitors(LICs)due to its unique layered structure,excellent electronic conductivity,and high specific surface area.However,like graphene,Ti_(3)C_(2)T_(x) restacks during electrochemical cycling due to hydrogen bonding or van der Waals forces,leading to a decrease in the specific surface area and an increase in the diffusion distance of electrolyte ions between the interlayer of the material.Here,a transition metal selenide MoSe_(2) with a special three-stacked atomic layered structure,derived from metal-organic framework(MOF),is introduced into the Ti_(3)C_(2)T_(x) structure through a solvo-thermal method.The synergic effects of rapid Li+diffusion and pillaring effect from the MoSe_(2) and excellent conductivity from the Ti_(3)C_(2)T_(x) sheets endow the material with excellent electrochemical reaction kinetics and capacity.The composite Ti_(3)C_(2)T_(x)@MoSe_(2) material exhibits a high capacity over 300 mAh·g^(-1) at 150 mA·g^(-1) and excellent rate property with a specific capacity of 150 mAh·g^(-1) at 1500 mA·g^(-1).Addition-ally,the material shows a superior capacitive contribution of 86.0%at 2.0 mV·s^(-1) due to the fast electrochemical reactions.A Ti_(3)C_(2)T_(x)@MoSe_(2)//AC LIC device is also fabricated and exhibits stable cycle performance.Jianjian Zhong Lu Qin Jianling Li Zhe Yang Kai Yang Mingjie Zhang 2022International Journal of Minerals,Metallurgy and Materials2022,29,5:4
4Accurate assessment of antibiotic susceptibility and screening resistant strains of a bacterial population by linear gradient plate显示文摘The dynamics of a bacterial population exposed to theminimum inhibitory concentration (MIC) of an antibiotic is an important issue in pharmacological research.Therefore,a novel antibiotic susceptibility test is urgently needed that can both precisely determine the MIC and accurately select antibiotic-resistant strains from clinical bacterial populations.For this purpose,we developed a method based on Fick's laws of diffusion using agar plates containing a linear gradient of antibiotic.The gradient plate contained two layers.The bottom layer consisted of 15 mL agar containing the appropriate concentration of enrofloxacin and allowed to harden in the form of a wedge with the plate slanted such that the entire bottom was just covered.The upper layer consisted of 15 mL plain nutrient agar added with the plate held in the horizontal position.After allowing vertical diffusion of the drug from the bottom agar layer for 12 h,the enrofloxacin concentration was diluted in proportion to the ratio of the agar layer thicknesses.The uniform linear concentration gradient was verified by measuring the enrofloxacin concentration on the agar surface.When heavy bacterial suspensions were spread on the agar surface and incubated for more than 12 h,only resistant cells were able to form colonies beyond the boundary of confluent growth of susceptible cells.In this way,the true MIC of enrofloxacin was determined.The MICs obtained using this linear gradient plate were consistent with those obtained using conventional antibiotic susceptibility tests.Discrete colonies were then spread onto a gradient plate with higher antibiotic concentrations;the boundary line increased significantly,and gene mutations conferring resistance were identified.This new method enables the rapid identification of resistant strains in the bacterial population.Use of the linear gradient plate can easily identify the precise MIC and reveal the dynamic differentiation of bacteria near the MIC.This method allows the study of genetic and physiological characteristics of individual strains,and may be useful for early warning of antibiotic resistance that may occur after use of certain antimicrobial agents,and guide clinical treatment.LIU YuQing LI JingRan DU JiaFa HU Ming BAI Hua QI Jing GAO Chao WEI TianTian SU Hong JIN JianLing GAO PeiJi 2011Science China(Life Sciences)2011,54,10:4
5KOH Direct Activation for Preparing Activated Carbon Fiber from Polyacrylonitrile-based Pre-oxidized Fiber显示文摘GAO Lili LU Haiyan LIN Haibo SUN Xiuyun XU Jianling LIU Dechen LI Yang 2014Chemical Research in Chinese Universities2014,30,3:4
6Microwave-hydrothermal preparation of a graphene/hierarchy structure MnO_2 composite for a supercapacitor显示文摘Graphene/hierarchy structure manganese dioxide(GN/MnO_2) composites were synthesized using a simple microwave-hydrothermal method.The properties of the prepared composites were analyzed using field emission scanning electron microscopy(FE-SEM),X-ray diffraction(XRD),transmission electron microscopy(TEM),and X-ray photoelectron spectroscopy(XPS) measurements.The electrochemical performances of the composites were analyzed using cyclic voltammetry,electrochemical impedance spectrometry(EIS),and chronopotentiometry.The results showed that GN/MnO_2(10wt% graphene) displayed a specific capacitance of 244F/gat a current density of 100mA/g.An excellent cyclic stability was obtained with a capacity retention of approximately 94.3% after 500 cycles in a 1 mol/L Li_2SO_4 solution.The improved electrochemical performance is attributed to the hierarchy structure of the manganese dioxide,which can enlarge the interface between the active materials and the electrolyte.The preparation route provides a new approach for hierarchy structure graphene composites;this work could be readily extended to the preparation of other graphene-based composites with different structures for use in energy storage devices.Zhong Chen Jianling Li Yu Chen Yakun Zhang Guofeng Xu Jun Yang Ye Feng 2014Particuology2014,12,4:4
7A high H_2 evolution rate under visible light of a CdS/TiO_2@Ni S catalyst due to a directional electron transfer between the phases显示文摘The photocatalytic activity of CdS can be greatly improved by co-modification of NiS and TiO_2 materials; furthermore the order of connection affects much. A directional electron transfer route via CdS → TiO_2→ NiS is found crucial to the enhancement of ternary catalyst, where TiO_2 acts as an electron reservoir and Ni S works as an effective cocatalyst. Cd S/TiO_2@Ni S with Ni S loaded on TiO_2 has an activity of H_2 evolution 2.5 times higher than NiS@Cd S/TiO_2 with Ni S pre-loaded on Cd S. Faster e-/h+separation rates is obtained of Cd S/TiO_2@Ni S under visible light than under extra UV light irradiation, which in turn demonstrates the importance of directional electron transfer route.Jianling Meng Yongdan Li 2019Chinese Journal of Chemical Engineering2019,27,3:4
8Cross-shelf carbon transport under different greenhouse gas emission scenarios in the East China Sea during winter显示文摘Based on Marx-Planck coupled model simulations and in situ hydrography measurements, the volume transport of ocean currents and associated carbon fluxes across the continental margin from the continental shelf to the deep ocean in the East China Sea during winter are estimated. Because cross-shelf currents in the Yellow and East China seas are much stronger in winter than in other seasons and are subducted into the subsurface Kuroshio, the cross-shelf burial of carbon takes place mainly in winter. The analyses show prominent cross-shelf transports during winter in the Yellow and East China seas, with annual mean offshore transport across a section from Taiwan to Cheju at 3.92 Sv(1 Sv=10~6 m^3 s^(-1)). Net transport across the section was0.82 Sv off the shelf, determined by the difference between Taiwan and Cheju strait transports. Net cross-shelf transports of dissolving inorganic carbon(DIC), dissolved organic carbon(DOC), and particulate organic carbon(POC) in winter were 98, 12,and 0.1 million tons, respectively. Under global greenhouse gas emission reduction(RCP4.5) and continuous increase(RCP8.5)scenarios, this cross-shelf transport has an increasing trend. The transports across the Taiwan-Cheju section in winter are predicted to increase by 0.54 and 0.65 Sv from 2006 to 2099, with rates of increase 15.3% and 19.6%, respectively. Associated with the transport increase, the cross-shelf fluxes of DIC, DOC and POC increase by as much as 15.4–25.2%. Cross-shelf carbon fluxes in the East China Sea during winter are evaluated for the first time under the global warming scenarios, showing the importance of cross-shelf transport in the carbon cycle of the China marginal seas.Dongliang YUAN Jiajia HAO Jianle LI Lei HE 2018Science China Earth Sciences2018,61,6:3
9The Intronic cis Element SE1 Recruits trans-Acting Repressor Complexes to Repress the Expression of ELONGATED UPPERMOST INTERNODE1 in Rice显示文摘Yongyao Xie Yaling Zhang Jingluan Han Jikai Luo Gousi Li Jianle Huang Haibin WU Qingwei Tian Qinlong Zhu Yuanling Chen Yoji Kawano Yao-Guang Liu Letian Chen 2018Molecular Plant2018,11,5:3
10Analysis of the factors affecting the magnetic characteristics of nano-Fe_3O_4 particles显示文摘We prepared Fe3O4 nanoparticles using chemical coprecipitation and studied the factors affecting the magnetic characteristics of nano-Fe3O4 particles.We identified four factors and three levels of an orthogonal experiment and investigated these four factors that affect the magnetic characteristics of the Fe3O4 particles.We obtained important information from this investigation.The Fe3+ to Fe2+ molar ratio,the iron precursor salt,the amount of surfactant and the amount of alkali were found to be important.We also studied the influence of the order of alkali and surfactant addition,the aging time and the stirring speed on the magnetic characteristics of the nano-Fe3O4 particles.The Fe3O4 preparation process was also analyzed.LI JianLing LI DeCai ZHANG ShaoLan CUI HongChao WANG Cui 2011Chinese Science Bulletin2011,56,8:2
11A theoretical and 1-D numerical investigation on a valve/valveless air-breathing pulse detonation engine显示文摘The important operating characteristics of pulsed Pressure Gain Combustion(PGC)propulsion are the pressure gain of the combustor component and the propulsive performance gain of the engine.A ramjet-type valve/valveless air-breathing pulsed detonation engine with a supersonic internal compression inlet is investigated.Based on an ideal thermal cycle,the ideal equivalent pressure ratios(pcb)of the Pulsed Detonation Combustor(PDC)are obtained theoretically which are directly related with the propulsive performance of the engine.By introducing an orifice loss model into the cycles,the critical pressure drop ratios through the orifice for the PDC achieving pressure gain and the engine achieving thrust gain are studied.More influencing factors are investigated by the use of a one-dimensional(1-D)numerical simulation model.The operating characteristics of the pulse detonation engine are investigated with changes of the valve type,the inlet/outlet area ratio of the PDC,the nozzle area ratio,and flight conditions.All these factors can affect pcbof the PDC,and pcbcan be optimized by changing the geometry of the engine.The most important influence parameter is the valve type.When using an orifice-type aerodynamic valve,simulation results show that the PDC cannot achieve the pressure gain characteristics.When a supersonic internal compression inlet is introduced to the engine,whether the Pulse Detonation Engine(PDE)can achieve thrust gain comparable with that of an ideal Brayton cycle engine not only is related to the pressure gain of the combustor,but also needs to optimize the engine structure to reduce the total pressure loss.Hua QIU Cha XIONG Jianling LI 2021Chinese Journal of Aeronautics2021,34,1:2
12The role of fluorescent carbon dots in crops:Mechanism and applications显示文摘Fluorescent carbon dots(CDs)have been widely studied in biosensing,imaging,information encryption,and optoelectronic devices due to excellent optical properties,such as photostability,tunable luminescence range,and resistance to photobleaching.In recent years,CDs have been explored for use in agriculture.Based on their light harvest and light conversion capacity,as well as their characteristics of easy synthesis and low toxicity,CDs show great potential in improving crop photosynthesis.In addition,CDs can also be used for smart and anticounterfeiting packing,food safety detection,and preservation of crops after harvest.In this study,the application of CDs with excellent optical properties in crops has been summarized,including preharvest processes(photosynthesis and plant imaging),and postharvest processes(crop preservation and food safety).Then the toxicity of CDs to crops is introduced.Finally,the present challenges and future prospects are discussed.Baoyan Guo Guo Liu Haopeng Wei Jiemin Qiu Jianle Zhuang Xuejie Zhang Mingtao Zheng Wei Li Haoran Zhang Chaofan Hu Bingfu Lei Yingliang Liu 2022SmartMat2022,3,2:2
13Investigation of hot jet on active control of oblique detonation waves显示文摘The hot jet injection is utilized to actively control the oblique detonation wave,such as initiating and stabilizing an oblique detonation wave at a desired position that is shorter than the length of induction zone,and adjust the height of the oblique detonation wave at the exit of combustor when the oblique detonation wave engine is working on off-design flight conditions.The fifth order Weighted Essentially Non-Oscillatory(WENO)scheme and a two-step reversible reaction mechanism of the stoichiometric H_2/Air are adopted in the simulations.With the help of hot jet injection,the transition from inert oblique shock wave to the oblique detonation wave immediately occurs near the position of hot jet injection,and consequently the length of combustor can be reduced.The angle of oblique detonation wave also decreases as the hot jet injection approaches the nose of wedge.Additionally,the height of the oblique detonation wave at the exit of combustor can be flexibly adjusted,and also depends on the injection position and the strength of the hot jet.If the velocity of the hot jet is too weak to directly trigger the overall oblique detonation wave at the position of injection,increasing the injection pressure will improve the strength of the hot jet and results in a successful transition.Hongbin LI Jianling LI Cha XIONG Wei FAN Lei ZHAO Wenhu HAN 2020Chinese Journal of Aeronautics2020,33,3:2
14HER2 discordance between paired primary gastric cancer and metastasis:a meta-analysis显示文摘Background:A number of stuthes have examined human epidermal growth factor receptor 2(HER2)status in primary gastric cancer(GC) and associated metastasis,some showed their great concordance in HER2 expression,but others demonstrated notable discordance.There is still little consensus on HER2 discordance,therefore,a systematic review and meta-analysis was conducted to assess the status on HER2 discordance between primary GC and its paired metastasis.Methods:PubMed,EMBASE,ASCO and The Cochrane Library were searched for stuthes that explored the concordance between primary tumor and metastasis in patients with GC up to 10 March,2014.Data of discordance of HER2 between primary GC and corresponding metastasis were extracted from the publications and random-effects models were used to estimate pooled discordance proportions.Results:Eighteen articles including 1,867 patients were included for the meta-analysis in accordance with the selection criteria.Pooled discordance proportions were 7%[95%confidence interval(CI):5-10%]for HER2 status.Pooled proportions of tumors shifting from positive to negative and from negative to positive were 17%(95%CI:7-29%) and 4%(95%CI:2-6%) respectively.No publication bias was found in the meta-analysis.Conclusions:The discordance of HER2 status is not rare in primary and metastatic GC through our metaanalysis.Prospective stuthes are needed to testify the clinical significance of the discordance of HER2 status.Zhi Peng Jianling Zou Xiaotian Zhang Yehong Yang Jing Gao Yilin Li Yanyan Li Lin Shen 2015Chinese Journal of Cancer Research2015,27,2:2
15Some new data on the genesis of the Linghou Cu–Pb–Zn polymetallic deposit—Based on the study of fluid inclusions and C–H–O–S–Pb isotopes显示文摘Yanwen Tang Xiaofeng Li Xiaoqi Zhang Jianling Yang Yuling Xie Lantingguang Youfu Huang Cheng Huang Rongchao Yin 2015Ore Geology Reviews2015,,:1
16Formation of multiple water - in - ionic liquid - in - water emulsions显示文摘LI JIANSHEN ZHANG JIANLING HAN BUXING 2012Journal of Colloid and Interface Science2012,368,:1
17New Vinyl Ester Bio-copolymers Derived from Dimer Fatty Acids: Preparation, Characterization and Properties 显示文摘Shouhai Li Jianling Xia Mei Li 2013Journal of the American Oil Chemists'' Society2013,90,05:1
18Structure and Electrochemical Performance of Hollow Tube Activated Carbon Prepared from Cotton as Electrode Material for Electric Double Layer Capacitor显示文摘LI Xinping LI Jianling YAN Gang ZHU Zhixun KANG Feiyu 2016Chemical Research in Chinese Universities2016,32,1:1
19New Vinyl Ester Bio-copolymers Derived from Dimer Fatty Acids: Preparation, Characterization and Properties显示文摘Shouhai Li Jianling Xia Mei Li Kun Huang 2013Journal of the American Oil Chemists’ Society2013,,5:1
20Experimen- tal Investigations on Detonation Initiation in a Kerosene- Oxygen Pulse Detonation Rocket Engine显示文摘Jianling Li Wei Fan Chuanjun Yan 2009Combustion Science and Technology2009,181,:1
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