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1Research progress on silicon/carbon composite anode materials for lithium-ion battery显示文摘Silicon(Si) has been considered as one of the most promising anode material for the next generation lithium-ion batteries(LIBs) with high energy densities, due to its high theoretical capacity, abundant availability and environmental friendliness. However, silicon materials with low intrinsic electric and ionic conductivity suffer from huge volume variation during lithiation/delithiation processes leading to the pulverization of Si and subsequently resulting in severe capacity fading of the electrodes. Coupling of Si with carbon(C) realizes a favorable combination of the two materials properties, such as high lithiation capacity of Si and excellent mechanical and conductive properties of C, making silicon/carbon composite(Si/C) ideal candidates for LIBs anodes. In this review, recent progresses of Si/C materials utilized in LIBs are summarized in terms of structural design principles, material synthesis methods, morphological characteristics and electrochemical performances by highlighting the material structures. The mechanisms behind the performance enhancement are also discussed. Moreover, other factors that affect the performance of Si/C anodes, such as prelithiation, electrolyte additives, and binders, are also discussed. We aim to present a full scope of the Si/C-based anodes, and help understand and design future structures of Si/C anodes in LIBs.Xiaohui Shen Zhanyuan Tian Ruijuan Fan Le Shao Dapeng Zhang Guolin Cao Liang Kou Yangzhi Bai 2018Journal of Energy Chemistry2018,27,4:29
2Characteristics of Meso-Cenozoic Igneous Complexes in the South Yellow Sea Basin,Lower Yangtze Craton of Eastern China and the Tectonic Setting显示文摘The South Yellow Sea Basin is partially surrounded by the East Asian continental MesoCenozoic widespread igneous rocks belt.Magnetic anomaly and multi-channel seismic data both reveal the prevalent occurrence of igneous rocks.We preliminarily defined the coupling relation between magnetic anomalies and igneous rock bodies.Some igneous complexes were also recognized by using multi-channel seismic and drilling data.We identified various intrusive and extrusive igneous rock bodies,such as stocks,sills,dikes,laccoliths and volcanic edifice relics through seismic facies analysis.We also forecasted the distribution characteristics of igneous complexes.More than fifty hypabyssal intrusions and volcanic relics were delineated based on the interpretation of magnetic anomaly and dense intersecting multi-channel seismic data.It is an important supplement to regional geology and basin evolution research.Spatial matching relations between igneous rock belts and fractures document that extensional N-E and N-NE-trending deep fractures may be effective pathways for magma intrusion.These fractures formed under the influence of regional extension during the MesoCenozoic after the Indosinian movement.Isotopic ages and crosscutting relations between igneous rock bodies and the surrounding bedded sedimentary strata both indicate that igneous activities might have initiated during the Late Jurassic,peaked in the Early Cretaceous,gradually weakened in the Late Cretaceous,and continued until the Miocene.Combined with previous studies,it is considered that the Meso-Cenozoic igneous activities,especially the intensive igneous activity of the Early Cretaceous,are closely associated with the subduction of the Paleo-Pacific Plate.PANG Yumao ZHANG Xunhua XIAO Guolin GUO Xingwei WEN Zhenhe WU Zhiqiang ZHU Xiaoqing 2017Acta Geologica Sinica(English Edition)2017,91,3:15
3Tread Wear and Footprint Geometrical Characters of Truck Bus Radial Tires显示文摘Wear and mileage performance are the foremost performances for truck bus radial (TBR) tires. There are a lot of researches about the tire wear performance as well as the contact patch phenomenon by using finite element analysis (FEA) method or testing. But there is little published data on the correlations between the footprint geometry and the tread wear performance of tires. In this paper, an experiment on tire-ground performance of TBR tires is carried out by using Tekscan. The real-time changes of contact-area pressure distribution that occurred during the process of continuous load and unload are recorded. Three types of tires that act differently in behavior under normal usage are analyzed. A new method of researching in tire tread wear, which focuses on the geometrical characters of the footprint, is put forward. The experimental results of the three tires are described by using footprint geometrical characters. On the basis of studying the changing laws of footprint geometrical characters during the loading process and considering consumer survey and factory feedback information, the correlations between the geometrical character of footprints and tread destruction form are built. The analyzed results show that a greater contact area coefficient and a steady coefficient of contact result in a better wear performance for TBR tires. The footprint-shape coefficient changing laws in the process of loading are found to have a very good coincidence with the tread wear of the three types of tires. Tires with a smaller footprint-shape coefficient are likely to have an average tread wear while avoiding the shoulder wear first. The proposed research provides a new solution to predict tire-ground performance at the point of footprint and several useful references for improving tire design.LIANG Chen WANG Guolin AN Dengfeng MA Yinwei 2013Chinese Journal of Mechanical Engineering2013,26,3:11
4Basin modeling in the initial stage of exploration: a case study from the North Subbasin of the South Yellow Sea Basin显示文摘Basin modeling has become an important tool for analyzing sedimentary basins. The North Subbasin of the South Yellow Sea Basin is filled with thick Meso-Cenozoic terrigenous deposits during the rift evolution stage. The accumulation of data and achievements of geological investigations in recent years have provided the preconditions for basin modeling. The necessary parameters and geological elements for simulations are collated and summarized. Modeling of tectono-thermal evolution is performed and the related trend in heat flow is reconstructed and calibrated. The heat flow value commences from an average level of 61 m W/m^2 during MiddleLate Jurassic, rises to about 80 m W/m^2 from circa 145 Ma to circa 74 Ma, and then undergoes a gradual decline to65 m W/m^2 until the end of Oligocene.Three evolutionary phases, namely, the initial rifting phase, syn-rifting phase, and post-rifting phase, have been identified. The modeling results show that the North Subbasin generally enters into a stage of strong rifting during Cretaceous and undergoes rapid subsidence until the Late Cretaceous,then follows by a stage of moderate rifting during the Paleogene. The input and general workflow involved in 3-D modeling are introduced. Reconstruction of the petroleum system in the North Subbasin reveals that the threshold depth of hydrocarbon generation is located near the top of the Paleogene Funing formation, and the underlying Jurassic and Cretaceous source rocks have reached or exceeded peak oil generation and have almost completed the generation and expulsion of hydrocarbons. The main generation and expulsion in the Jurassic source rocks take place during the syn-rifting and post-rifting phases, whereas the peak generation and expulsion in the Cretaceous and Paleogene source rocks take place during the post-rifting phase. Although the study area is still a relatively less explored sedimentary basin, the results of modeling can provide valuable information for exploration. A preliminary discussion of the main uncertainty factors is also presented.PANG Yumao ZHANG Xunhua GUO Xingwei XIAO Guolin HAN Zuozhen 2017Acta Oceanologica Sinica2017,36,9:10
5Forecast scheme and strategy for extended-range predictable components显示文摘Although extended-range forecasting has exceeded the limit of daily predictability of weather,there are still partially predictable characteristics of meteorological fields in such forecasts.A targeted forecast scheme and strategy for extended-range predictable components is proposed.Based on chaotic characteristics of the atmosphere,predictable components and unpredictable random components are separated by using the standpoint of error growth in a numerical model.The predictable components are defined as those with slow error growth at a given range,which are not sensitive to small errors in initial conditions. A numerical model for predictable components(NMPC)is established,by filtering random components with poor predictability.The aim is to maintain predictable components and avoid the influence of rapidly growing forecast errors on small scales. Meanwhile,the analogue-dynamical approach(ADA)is used to correct forecast errors of predictable components,to decrease model error and statistically take into account the influence of random components.The scheme is applied to operational dynamical extended-range forecast(DERF)model of the National Climate Center of China Meteorological Administration (NCC/CMA).Prediction results show that the scheme can improve forecast skill of predictable components to some extent, especially in high predictability regions.Forecast skill at zonal wave zero is improved more than for ultra-long waves and synoptic-scale waves.Results show good agreement with predictability of spatial scale.As a result,the scheme can reduce forecast errors and improve forecast skill,which favors operational use.ZHENG ZhiHai HUANG JianPing FENG GuoLin CHOU JiFan 2013Science China Earth Sciences2013,56,5:9
6Analysis of stable components for extended-range (10-30 days) weather forecast:A case study of continuous overcast-rainy process in early 2009 over the mid-lower reaches of the Yangtze River显示文摘A continuous overcast-rainy weather(CORW) process occurred over the mid-lower reaches of the Yangtze River(MLRYR) in China from February 14 to March 9 in 2009,with a large stretch and long duration that was rarely seen in historical records.Using the empirical orthogonal function(EOF),we analyzed the geopotential height anomaly field of the NCEP-DOE Reanalysis II in the same period,and defined the stable components of extended-range(10-30 days) weather forecast(ERWF).Furthermore,we defined anomalous and climatic stable components based on the variation characteristics of the variance contribution ratio of EOF components.The climatic stable components were able to explain the impact of climatically averaged information on the ERWF,and the anomalous stable components revealed the abnormal characteristics of the continuous overcast-rainy days.Our results show that the stable components,especially the anomalous stable components,can maintain the stability for a longer time(more than 10 days) and manifest as monthly scale low-frequency variation and ultra-long-wave activities.They also behave as ultra-long waves of planetary scale with a stable and vertically coherent structure,reflect the variation of general circulation in mid-high latitudes,display the cycle of the zonal circulation and the movement and adjustment of the ultra-long waves,and are closely linked to the surface CORW process.FENG GuoLin SUN ShuPeng ZHAO JunHu ZHENG ZhiHai 2013Science China Earth Sciences2013,56,9:8
7Dynamic-statistics combined forecast scheme based on the abrupt decadal change component of summer precipitation in East Asia显示文摘基于 19832011 CMAP 数据,在东亚的降水异例和它的附近的海区域(此后叫的东亚为短) 在 1999 前表明 ++ 模式并且 + 模式以后;这个十的变化在相应 EOF3 部件主要被包含。然而, NCC_CGCM 预报结果是相当不同的,它在 1999 前揭示 ++ 模式并且 ++ 模式以后。同时,基于这些关键 SST 区域改进 NCC_CGCMs 预报精确性的概率被讨论,并且动态统计的联合预报计划为增加在东亚在夏天降水包含的十的变化的信息被构造。独立样品预报结果显示这个预报计划罐头有效地修改十的变化信息在东亚在夏天降水包含了的 NCC_CGCMs (特别在 30 敢琠敨攠癮 的区域吗??GONG ZhiQiang ZHAO JunHu FENG GuoLin CHOU JiFan 2015Science China Earth Sciences2015,58,3:7
8Chemical Composition and Antimicrobial Activity of Essential Oil of Asarum caulescene显示文摘Both essential oils of fresh and air-dried Asarum caulescene (Maxim.) were analyzed by GC-MS in three different polarities. The results show that thirty-four components were identified in the oils, and main compounds of both oils were β-pinene (7.63% vs. 20.72%), 2-carene (8.94% vs. 7.99%), β-phellandrene (7.80% vs. 14.39%), 1,8-cineole (8.91% vs. 13.29%) and germacrone (46.64% vs. 6.64% ), however, the content of monoterpene hydrocarbons(30.29% vs. 52.30% ) and oxygenated sesquiterpenes( 47.69% vs. 10.65%) of both oils was different. The antimicrobial activity of the oil was evaluated against 3 fungi and 11 bacteria including 7 clinical isolated strains. Our results showed that both oils presented a broad antimicrobial spectrum, and compared with the essential oil from fresh herb, the extracted oil from dried herb had better antimicrobial activity, its minimum inhibitory concentration(c_ mi ) values of dried herb were 0.16-2.5 g/L and lowest minimum bactericidal concentration(c_ mb ) value was 0.31 g/L.ZHU Shunying YANG Yang YU Huaidong YING Yue LONG Dong Zou Guolin 2006Wuhan University Journal of Natural Sciences2006,11,3:7
9Reconstruction of Conceptual Prediction Model for the Three Rainfall Patterns in the summer of eastern China under global warming显示文摘With the influence of global warming,the global climate has undergone significant inter-decadal variation since the late 1970s.Although El Nio-Southern Oscillation(ENSO)has been the strongest signal for predicting global climate inter-annual variability,its relation with the summer rainfall in China has significantly changed,and its indicative function on the summer rainfall in China has weakened.This has led to a significant decrease in the accuracy rate of early conceptual prediction models for the Three Rainfall Patterns in the summer of eastern China.On the basis of the difference analysis of atmospheric circulation system configuration in summer,as well as the interaction of ocean and atmospheric in previous winter between two phases,i.e.before and after the significant global warming(1951 to 1978 and 1979 to 2012,respectively),we concluded that(1)Under different inter-decadal backgrounds,the atmospheric circulations that impacted the Three Rainfall Patterns in the summer of eastern China showed consistency,but in the latter phase of the global warming,the Western Pacific Subtropical High(WPSH)was on the strong side,the position of which was in the south,and the blocking high in the Eurasia mid-high latitudes was active,while the polar vortex extended to the south,and meridional circulation intensified.This circulation background may have been conducive to the increase of the circulation frequency of Patterns II and III,and the decrease of the circulation frequency of Pattern I,thus leading to more Patterns II and III and fewer Pattern I in the summer rainfall of eastern China.(2)In the former phase,the corresponding previous winter SST fields of different rainfall patterns showed visible differences.The impact of ENSO on North Pacific Oscillation(NPO)was great,and the identification ability of which on Patterns I and II of summer rainfall was effective.In the latter phase,this identification ability decreased,while the impact of ENSO on the Pacific/North American(PNA)teleconnection pattern increased,and the identification ability of the PNA on Patterns II and III also increased.Based on the new inter-decadal climate background,this study reconstructs the conceptual prediction model for the Three Rainfall Patterns in summer of eastern China by using the previous winter PNA and the Eurasian(EU)teleconnection indexes.The fitting effect was satisfying,though it is necessary to be further tested.ZHAO JunHu FENG GuoLin 2014Science China Earth Sciences2014,57,12:7
10固体氧化物质子传导膜H_2S燃料电池显示文摘A brief overview of the past and present state of art in the field of H2S solid oxide fuel cell is presented.Electrochemical performance of a proton-conducting solid oxide fuel cell having the configuration of H2S,(MoS2+NiS)/Li2SO4-Al2O3/Pt,air was investigated.The experimental results showed that electrolyte materials like Li2SO4-Al2O3, and anode substances such as MoS2+NiS showed good chemical stability under the operating conditions of a fuel cell using H2S as the fuel, and that binary metal sulfides such as MoS2+NiS as an anode catalyst was superior to a single metal sulfide of MoS2 which sublimes above 450 ℃, and better than Pt which could be detached and resulted in the degradation of anode due to the formation of PtS.The proton-conducting and cell performance was improved at elevated temperatures due to the increase of electrochemical reaction rate and the reduction of cell resistance.OCV values around 1.0 V were observed.The maximum current and power density values obtained at 600 ℃ were 20 mA·cm -2 and 4 mW· cm -2, and as high as 200 mA· cm -2 and 55 mW· cm -2 were achieved at 700 ℃, respectively.Three different anode catalysts, Pt, MoS2+NiS and MoS2+NiS+Ag were described.The conductance of cell increased and the cell performance was improved with Ag powder added to anode catalysts.Current density up to 250 mA· cm -2 and power density up to 70 mW· cm -2 were achieved with the anode catalyst MoS2+NiS+Ag compared to those with MoS2+NiS at 700 ℃.钟理 陈建军 WEI Guolin LUO Jingli CHUANG Karl 2004化工学报2004,55,10:6
11Thermostability of Subtilisin Nattokinase Obtained by Site-Directed Mutagenesis显示文摘To study the thermostability of Nattokinase(subtilisin NAT,NK),three double mutant plasmids(pET-28a-NKG61C/S98C,pET-28a-NKT22C/S87C,pET-28a-NKS24C/S87C)were constructed by site-directed mutagenesis.Target enzymes were detected using SDS-PAGE and disulfide bond formation was detected using Western blotting analysis.Thermostability was tested by rates of inactivation at certain temperature.The results showed that disulfide bond was not formed within two cysteines and the thermostability of three double mutants was not increased compared with the wild-type NK.The thermostability of NK performed in Ca2+was stronger than in ethylenediaminetetraacetic acid(EDTA).But when the temperature reached 62℃,the enzymes rapidly denatured and inactivated even in the presence of Ca2+.Although the thermostability of mutants was not increased,this study shows a tendency of improving thermostability of NK in protein engineering.WENG Meizhi DENG Xiongwei WU Jieyuan ZOU Guolin 2014Wuhan University Journal of Natural Sciences2014,19,3:6
12Quercus yangyiensis sp. nov. from the Late Pliocene of Baoshan, Yunnan and Its Paleoclimatic Significance显示文摘A new Quercus(Fagaceae) morphospecies is described based on well-preserved fossil leaves. The fossils were collected from Yangyi Formation of the Upper Pliocene at the Yangyi coalmine, Baoshan, western Yunnan, China. Details of the microstructure of mesophyll tissue are preserved because lithification of the fossils was not complete. The fossil laminas possess typical characteristics of Quercus sect. Heterobalanus: quite thick and coriaceous cuticle; secondary veins bifurcating near the margin in the middle and top of the leaf; and upper epidermis with adaxial hypodermis. Based on a detailed morphological and anatomical comparison with all living and fossil species of Quercus sect. Heterobalanus, the fossil leaves prove to be different in their sparse and garland-shaped multicellular trichomes on the lower epidermis, and so it is described as a new species Quercus yangyiensis He, Li et Sun sp. nov. The much sparser trichomes of our fossils compare well with those of living Quercus sect. Heterobalanus and indicate a more humid climate during the deposition of the Yangyi Formation in the Late Pliocene.HE Yuli LI Na WANG Zixi WANG Haofei YANG Guolin XIAO Liang WU Jingyu SUN Bainian 2014Acta Geologica Sinica(English Edition)2014,88,3:6
13HENIG GLOBALLY EFFICIENCY FOR SET-VALUED OPTIMIZATION AND VECTOR VARIATIONAL INEQUALITY显示文摘This paper deals with Henig globally efficiency in vector optimization involving generalized cone-preinvex set-valued mapping. Some properties of generalized cone-preinvex set-valued map are derived. It also disclose the closed relationships between Henig globally efficiency of generalized conepreinvex set-valued optimization problem and Henig globally efficiency of a kind of vector variational inequality.YU Guolin 2014Journal of Systems Science & Complexity2014,27,2:6
14Research and Practice of Dynamic Network Security Architecture for IaaS Platforms显示文摘Network security requirements based on virtual network technologies in IaaS platforms and corresponding solutions were reviewed.A dynamic network security architecture was proposed,which was built on the technologies of software defined networking,Virtual Machine(VM)traffic redirection,network policy unified management,software defined isolation networks,vulnerability scanning,and software updates.The proposed architecture was able to obtain the capacity for detection and access control for VM traffic by redirecting it to configurable security appliances,and ensured the effectiveness of network policies in the total life cycle of the VM by configuring the policies to the right place at the appropriate time,according to the impacts of VM state transitions.The virtual isolation domains for tenants’VMs could be built flexibly based on VLAN policies or Netfilter/Iptables firewall appliances,and vulnerability scanning as a service and software update as a service were both provided as security supports.Through cooperation with IDS appliances and automatic alarm mechanisms,the proposed architecture could dynamically mitigate a wide range of network-based attacks.The experimental results demonstrate the effectiveness of the proposed architecture.Lin Chen Xingshu Chen Junfang Jiang Xueyuan Yin Guolin Shao 2014Tsinghua Science and Technology2014,19,5:6
15Spatial-temporal coupling between high-quality source rocks and reservoirs for tight sandstone oil and gas accumulations in the Songliao Basin, China显示文摘The spatial-temporal relationship between high-quality source rocks and reservoirs is a key factor when evaluating the formation,occurrence,and prospectivity of tight oil and gas reservoirs.In this study,we analyze the fundamental oil and gas accumulation processes occurring in the Songliao Basin,contrasting tight oil sand reservoirs in the south with tight gas sand reservoirs in the north.This is done using geochemical data,constant-rate and conventional mercury injection experiments,and fluid inclusion analyses.Our results demonstrate that as far as fluid mobility is concerned,the expulsion center coincides with the overpressure zone,and its boundary limits the occurrence of tight oil and gas accumulations.In addition,the lower permeability limit of high-quality reservoirs,controlled by pore-throat structures,is 0.1×10^-3μm^2 in the fourth member of the Lower Cretaceous Quantou Formation(K1q^4)in the southern Songliao Basin,and 0.05×10^-3μm^2 in the Lower Cretaceous Shahezi Formation(K1sh)in the northern Songliao Basin.Furthermore,the results indicate that the formation of tight oil and gas reservoirs requires the densification of reservoirs prior to the main phase of hydrocarbon expulsion from the source rocks.Reservoir“sweet spots”develop at the intersection of high-quality source rocks(with high pore pressure)and reservoirs(with high permeability).Laixing Cai Guolin Xiao Shuangfang Lu Jiao Wang Zhiqiang Wu 2019International Journal of Mining Science and Technology2019,29,3:6
16Activity of cold vortex in northeastern China and its connection with the characteristics of precipitation and circulation during 1960-2012显示文摘Based on the daily reanalysis data released by NCEP/NCAR and the daily precipitation of 753 Chinese stations from May to August during the period of 1960 to 2012, the statistical characteristics of the cold vortex in northeastern China were analyzed. In addition, the strength index, which described the characteristics of the vortex consistently and frequently, and the geographical distribution were given by continuous anomalies of circulation. Based on this index, the activity routines of the cold vortex, characteristics of atmospheric circulation, and their effects on precipitation in northeastern China were analyzed. The results show that: the activities of the cold vortex exhibit remarkable features of annual and interdecadal oscillation, and the vortex high frequency and its characteristics of atmospheric circulation are described more accurately by the strength index of the cold vortex, which shows a high correspondence with the vortex precipitation during early summer and midsummer in the northeast. In strong(weak) vortex years, the general circulation in the middle and high latitudes of Eurasia is to the advantage(disadvantage) of the formation, development and maintenance of the cold vortex, thus it is easy(difficult) to form the circulation which is beneficial to transmit vapor from south to north during the period of July to August. Blocking over the Ural Mountains prevails(does not prevail) in early summer, and blocking over the Sea of Okhotsk prevails(does not prevail) in midsummer. Areas where the subtropical high is too small(large) and moves toward the north too late(early) are better(worse) for the maintenance of the cold vortex in northeastern China.LIU Gang FENG Guolin QIN Yulin CAO Ling YAO Hongwei LIU Ziqi 2015Journal of Geographical Sciences2015,25,12:5
17The separable Hamiltonian system and complete biorthogonal expansion method of Mindlin plate bending problems显示文摘A separable Hamiltonian system of Mindlin plate bending problems is obtained. Using the equivalence between the differential form and integral form of the separable Hamiltonian system, the biorthogonal relationships of the eigenfunctions are presented. Based on the biorthogonal relationships, a novel complete biorthogonal expansion of the Mindlin plate bending problems with two opposite sides simply supported is proposed through the products of operator matrices. The exact solutions to deflections and bending moments for the Mindlin plate with fully simply supported sides are obtained. A numerical example is illustrated to verify the accuracy and validity of the expansion method.HOU GuoLin QI GaoWa XU YaNan CHEN Alatancang 2013Science China(Physics,Mechanics & Astronomy)2013,56,5:5
18An Anomalous Behavior Detection Model in Cloud Computing显示文摘This paper proposes an anomalous behavior detection model based on cloud computing. Virtual Machines(VMs) are one of the key components of cloud Infrastructure as a Service(Iaa S). The security of such VMs is critical to Iaa S security. Many studies have been done on cloud computing security issues, but research into VM security issues, especially regarding VM network traffic anomalous behavior detection, remains inadequate.More and more studies show that communication among internal nodes exhibits complex patterns. Communication among VMs in cloud computing is invisible. Researchers find such issues challenging, and few solutions have been proposed—leaving cloud computing vulnerable to network attacks. This paper proposes a model that uses Software-Defined Networks(SDN) to implement traffic redirection. Our model can capture inter-VM traffic, detect known and unknown anomalous network behaviors, adopt hybrid techniques to analyze VM network behaviors, and control network systems. The experimental results indicate that the effectiveness of our approach is greater than 90%, and prove the feasibility of the model.Xiaoming Ye Xingshu Chen Haizhou Wang Xuemei Zeng Guolin Shao Xueyuan Yin Chun Xu 2016Tsinghua Science and Technology2016,21,3:5
19Purification and Characterization of an Antibacterial Protein from the Cultured Mycelia of Cordyceps sinensis显示文摘抗菌剂蛋白质从 Cordycepssinensi.f 的有教养的 mycelia 被孤立,并且被指定为 Cordyceps sinensis 抗菌剂蛋白质(CSAP ) 。CSAP 锁住 wassingle,与 35 x 10 ~ 的一个明显的分子的团, 3 由 SDS 页和新奇恐水病的 N 终端顺序 N-ALATQHGAP 揭示了。抗菌剂试金证明 CSAP 能对真菌或酵母禁止克积极、克否定的细菌而是没有重要抑制的生长。而且, CSAP 的抗菌剂活动不杀菌却细菌抑制。抗菌剂蛋白质在 Cordyceps 种类被描述的 Itwas 第一次,它可能在主人的化学防卫机制包含。HU Zheng YE Maoqing XIA Liqiu TU Wenjuan LI Liang ZOU Guolin 2006Wuhan University Journal of Natural Sciences2006,11,3:5
20The Latest In-Situ Uraninite U-Pb Age of the Guangshigou Uranium Deposit, Northern Qinling Orogen, China: Constraint on the Metallogenic Mechanism显示文摘Objective The Guangshigou uranium deposit is located in the eastern part of the Shangdan triangular domain,which is currently the most productive pegmatite-hosted uranium deposit in China.Previous studies have focused on the migration and precipitation of uraninite and biotite clusters in the uraniferous pegmatites (Li Yanhe et al.,2016;Yuan et al.,2018).However,the accurate uranium mineralization age still remains poorly constrained,thus hindering the understanding of the origin of the uranium mineralization.This study conducted in-situ LA-ICP-MS U-Pb dating on uraninite to obtain a robust mineralization age for the Guangshigou deposit,and interpreted the relationship between granitic magma evolution and uranium mineralization.WU Yong QIN Mingkuan GUO Dongfa FAN Guang LIU Zhangyue GUO Guolin 2018Acta Geologica Sinica(English Edition)2018,92,6:4
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