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| 1 | LA-ICP-MS Zircon U-Pb Dating of Intermediate-Acidic Intrusive Rocks and Molybdenite Re-Os Dating from the Bangpu Mo (Cu) Deposit, Tibet and its Geological Implication显示文摘The multi-stage intrusions of intermediate-acid magma occur in the Bangpu mining district, the petrogenic ages of which have been identified. The times and sequences of their emplacement have been collated and stipulated in detail in this paper by using the laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) zircon U-Pb dating method. The ages of biotite monzogranite that were formed before mineralization in the southwest of this mining district are 70±1 Ma (mean square of weighted deviates (MSWD) =9.5, n=8) and 60.60±0.31 Ma (MSWD=3.8, n=16), which belong to the late Cretaceous-early Paleocene in age. That means, they are products of an early tectonicmagmatic event of the collision between the Indian and Asian continentals. The ages of ore-bearing monzogranite porphyry and ore-bearing diorite porphyrite are 16.23±0.19 Ma (MSWD=2.0, n=26) and 15.16±0.09 Ma (MSWD=3.9, n=5) separately, which belong to the middle Miocene in age; namely, they are products of the Gangdese post-collision extensional stage when crust-mantle materials melted and mixed as well as magmatic intrusion simultaneously occurred. Some zircons with ages of 203.6±2.2 Ma (MSWD=1.18, n=7) were captured in the ore-bearing diorite porphyrite, which shows that there had been tectono-magmatic events in the late Triassic-early Jurassic. Molybdenum (copper) ore-bodies produced in the monzogranite porphyry and copper (molybdenum) ore-bodies produced in the diorite porphyrite are the main ore types in this ore deposit. The model ages of Re-Os isotopic dating for the 11 molybdenite are 13.97-15.84 Ma, while isochron ages are 14.09±0.49 Ma (MSWD=26). The isochron ages of seven molybdenite from molybdenum (copper) ore with monzogranite porphyry type are 14.11±0.31 Ma (MSWD=5.2). There is great error in the isochron ages of four molybdenite from copper (molybdenum) ore with diorite porphyrite type, and their weighted average model ages of 14.6±1.2 Ma (MSWD=41), which generally represent the mineralization age. The results about the Re-Os isotopic dating of molybdenite in the ore of different types have limited exactly that, the minerlazation age of this ore deposits is about 14.09 Ma, which belongs to the middle Miocene mineralization. The Bangpu deposit has a uniform metallogenic dynamics background with the porphyry type and skarn-type deposits such as Jiama, Qulong and others. | WANG Liqiang CHEN Yuchuan TANG Juxing LU Pengrui LUO Maocheng WANG Huan CHEN Wei LENG Qiufeng | 2012 | Acta Geologica Sinica(English Edition)2012，86，5： | 13 |
| 2 | Stress Corrosion Cracking of X80 Steel in the Presence of Sulfate-reducing Bacteria显示文摘The systematic laboratory studies on the roles of sulfate-reducing bacteria(SRB) in the stress corrosion cracking(SCC) susceptibility of X80 steel subjected to cathodic potential have been conducted in a nearneutral pH soil solution by slow strain rate tests.The cathodic potential and SRB increase individually the SCC susceptibility of the steel in the soil solution.The positive role of the SRB activities in SCC susceptibility depends on the prolongation of pre-incubation time,and the SCC susceptibility of the steel increases under more negative potentials.What's more,the applied potentials and the presence of SRB work together in promoting the SCC susceptibility of the steel.But,the combined action becomes limited with decreasing cathodic potentials.The relationships between the plasticity loss and the permeable hydrogen concentration were established for the steel in the soil solution,regardless of under open circuit potential or cathodic potentials,in both the sterile and SRB inoculated conditions.The relationships are practically significant for the selection of safe cathodic protection(CP) potentials in the presence of SRB in soil environment. | Tangqing Wu Maocheng Yan Dechun Zeng Jin Xu Cheng Sun Changkun Yu Wei Ke | 2015 | Journal of Materials Science & Technology2015，31，4： | 11 |
| 3 | Facile synthesis of high electrical conductive CoP via solid-state synthetic routes for supercapacitors显示文摘Co-P precursor was prepared by a mechanical alloying method and then is controlled to synthesis of Co P phase through an annealing method. The optimal conditions of ball milling and annealing temperature are investigated. The Co P exhibits higher electrical conductivity than graphite and cobalt oxide, showing excellent pseudocapacitive properties due its high electrical conductivity which can result in a fast electron transfer in high rate charge–discharge possess. The as-obtained Co P electrode achieves a high specific capacitance of 447.5 F/g at 1 A/g, and displays an excellent rate capability as well as good cycling stability. Besides, the asymmetric supercapacitor(ASC) based on the Co P as the positive electrode and activated carbon(AC) as the negative electrode was assembled and displayed a high rate capability(60%of the capacitance is retained when the current density increased from 1 A/g to 12 A/g), excellent cycling stability(96.7% of the initial capacitance is retained after 5000 cycles), and a superior specific energy of19 Wh/kg at a power density of 350.8 W/kg. The results suggest that the Co P electrode materials have a great potential for developing high-performance electrochemical energy storage devices. | Yumei Hu Maocheng Liu Qingqing Yang Lingbin Kong Long Kang | 2017 | Journal of Energy Chemistry2017，26，1： | 7 |
| 4 | Microbial corrosion resistance of a novel Cu-bearing pipeline steel显示文摘Microbiologically influenced corrosion(MIC) is becoming a serious problem for buried pipelines. Developing environmentally friendly strategies for MIC control is increasingly urgent in oil/gas pipeline industry.Copper(Cu) in steels can not only provide aging precipitation strengthening, but also kill bacterium,offering a special biofunction to steels. Based on the chemical composition of traditional X80 pipeline steel, two Cu-bearing pipeline steels(1% Cu and 2% Cu) were fabricated in this study. The microstructure,mechanical properties and antibacterial property against sulphate-reducing bacteria(SRB) and Pseudomonas aeruginosa(P. aeruginosa) were studied. It was found that the novel pipeline steel alloyed by 1%Cu exhibited acicular ferrite microstructure with nano-sized Cu-rich precipitates distribution in the matrix, resulting in better mechanical properties than the traditional X80 steel, and showed good MIC resistance as well. The pitting corrosion resistance of 1% Cu steel in as-aged condition was significantly better than that of X80 steel. A possible antibacterial mechanism of the Cu-bearing pipeline steel was proposed. | Xianbo Shi Wei Yan Dake Xu Maocheng Yan Chunguang Yang Yiyin Shan Ke Yang | 2018 | Journal of Materials Science & Technology2018，34，12： | 7 |
| 5 | EXPERIMENTAL STUDY OF ENHANCED HEAT TRANSFER BY FLOW-INDUCED VIBRATION OF ELASTIC TUBE BUNDLES显示文摘A new concept of heat t ransfer enhancement by flow-induced vibration was put forward, and a novel heat transfer element called elastic tube bundles was designed. The experimental inv estigation was performed on its characteristics of flow-induced virbration in o ut-tube or in-tube flow. Under the conditions of fixed heat flux and steam-wa ter heat transfer, the regularity of heat transfer enhancement by flow-induced vibration was examined. | Tian, Maocheng Cheng, Fei Cheng, Lin Cao, Bingyang | 2000 | Journal of Hydrodynamics2000，12，3： | 4 |
| 6 | Facile synthesis of MoS_2/graphite intercalated composite with enhanced electrochemical performance for sodium ion battery显示文摘MoS_2 is a promising anode material for sodium ion batteries owing to its two-dimensional layered structure and high specific capacity. But it still exhibits a poor cycle stability and limited rate capability for Na+storage because of its poor electrical conductivity and structural instability. In this work,MoS_2/graphite composite is fabricated by mechanically delaminated and restacked MoS_2 and graphite to form two-dimensional composite layers. The graphite sheets will improve electrical conductivity and prevent the aggregation as well as structure collapse of the MoS_2 layers during charge–discharge process.The MoS_2/graphite composite exhibits excellent Na+storage properties. It delivers a high discharge specific capacity of 358.2 m Ah/g at a current density of 100 m A/g in the first discharge process and with capacity retention of 68.1% after 800 cycles(retains 244 m Ah/g). The average discharge specific capacities retain 250.9 and 225.4 m Ah/g corresponding to the current densities of 100 and 1000 m A/g, showing excellent rate capability. The improved electrochemical performance is attributed to the improved electrical conductivity and structural stability after composition of graphite sheets. The study demonstrates a new research strategy for improving sodium ion storage properties of MoS_2. | Qingqing Yang Maocheng Liu Yumei Hu Yan Xu Lingbin Kong Long Kang | 2018 | Journal of Energy Chemistry2018，27，4： | 2 |
| 7 | Local environment under simulated disbonded coating on steel pipelines in soil solution显示文摘 | Maocheng Yan Jianqiu Wang Enhou Han Wei Ke | 2008 | Corrosion Science2008，，5： | 2 |
| 8 | A PTAS for minimizing total completion time of bounded batch scheduling显示文摘 | CAI Maocheng DENG Xiaotie FENG Haodi | 2006 | Lecture Notes in Comput2006，2337，： | 1 |
| 9 | Simple synthesis of novel phosphate electrode materials with unique microstructure and enhanced supercapacitive properties显示文摘Flower-like Ni_3P_2O_8 and flower-like Fe_3P_2O_8·8H_2O have been successfully synthesized by a simple chemical precipitation method.X-ray diffraction(XRD) patterns reveal an amorphous phase formation of nickel phosphate(Ni_3P_2O_8) and pure monoclinic phase of Fe_3P_2O_8·8H_2O.The novel flower-like Ni_3P_2O_8 and flower-like Fe_3P_2O_8·8H_2O when used for supercapacitor electrode materials exhibit a high specific capacitance(C m) of 1464 F/g and 200 F/g at a current density of 0.5 A/g,respectively.Eventually,an asymmetric supercapacitor is fabricated using Ni_3P_2O_8 as positive electrode and Fe_3P_2O_8·8H_2O as negative electrode.A high specific capacitance of 94 F/g is achieved in the high-voltage region of 0 ~1.6 V,and a large energy density of 32.6 Wh/kg is delivered at power density of 420 W/kg.The findings demonstrate the important and great potential of developing metal phosphate based materials for supercapacitors. | Maocheng Liu Jiajia Li Wei Han Long Kang | 2016 | Journal of Energy Chemistry2016，25，4： | 1 |
| 10 | Inverse problem of minimum cuts 显示文摘 | ZHANG Jianzhong CAI Maocheng | 1998 | Mathematical Methods of Operations Research1998，48，： | 1 |
| 11 | Role of Fe oxides in corrosion of pipeline steel in a red clay soil显示文摘 | Maocheng Yan Cheng Sun Jin Xu Junhua Dong Wei Ke | 2013 | Corrosion Science2013，，： | 1 |
| 12 | Preparation of controllable crystalline titania and study on the photocatalytic properties 显示文摘 | Yan Maocheng | 2005 | J Phys Chem B2005，3，： | 1 |
| 13 | Porous cobalt hydroxide film electrodeposited on nickel foam with exeeUent electrochemical capacitive behavior 显示文摘 | Kong Lingbin Liu Maocheng Lang Junwei | 2011 | J Solid State Electrochem2011，15，： | 1 |
| 14 | Minus domination number in cubic graph显示文摘An upper bound is established on the parameter Γ -(G) for a cubic graph G and two infinite families of 3-connected graphs G k, G * k are constructed to show that the bound is sharp and, moreover, the difference Γ -(G * k)-γ s(G * k) can be arbitrarily large, where Г -(G * k) and γ s(G * k) are the upper minus domination and signed domination numbers of G * k, respectively. Thus two open problems are solved. | KANG Liying 1 *, and CAI Maocheng 2, 3 1. Department of Basic Course, Shijiazhuang Railway Institute, 050043, China 2. Institute of Systems Science, Chinese Aeademy of Sciences, Beijing 100080, China 3. Asian-Pacific Operations Research Center, | 1998 | Chinese Science Bulletin1998，43，6： | 1 |
| 15 | Effects of Amount of Green Manure Returned to Field on Yield and Quality of Flue-cured Tobacco显示文摘The effects of amount of green manure returned to field on yield and quality of flue-cured tobacco were studied by field experiment. The results showed that significant positive correlation existed between tobacco leaf yield and small or moderate amount of green manure returned to field. Path analysis showed that moderate amount of green manure returned to field affected yield and quality of tobacco leaves,small green manure returned to field mainly affected leaf yield,while large amount of green manure returned to field mainly affected leaf quality. Therefore,the effect of moderate amount of green manure returned to field on yield and quality of tobacco leaves was best,and moderate amount of green manure returned to field was recommended in production of flue-cured tobacco. | Mingfa ZHANG Feng TIAN Maocheng TIAN Qianfeng CHENG Xiaohua DENG | 2018 | Agricultural Biotechnology2018，7，5： | 1 |
| 16 | A degree condition for a graph to have -factors 显示文摘 | Li Yanjun Cai Maocheng | 1998 | J Graph Theory1998，27，： | 1 |
| 17 | SVET method for characterizing anti-corrosion performance of metal-rich coatings显示文摘 | Maocheng Yan Victoria J. Gelling Brian R. Hinderliter Dante Battocchi Dennis E. Tallman Gordon P. Bierwagen | 2010 | Corrosion Science2010，，8： | 1 |
| 18 | Tree decomposition显示文摘A tree decomposition of graph G=(V, E) is referred to as a partition of edge set E into edge-disjoint trees. Given (not necessarily distinct) vertices u-1, u-2...u-k∈V with k≥2, a sufficient and necessary condition is given for a connected graph G=(V,E) to have a tree decomposition {T-1, T-2...T-k} such that V(T-i)=V{u-i}, i=1,2,... k. | Xudong Yuan Maocheng Cai | 1998 | Chinese Science Bulletin1998，43，19： | 1 |
| 19 | Research\son vibration and heat transfer characteristics of an optimized structure of elastic tube bundle显示文摘 | JIANG Bo TIAN Maocheng CHENG Lin | 2013 | Advanced\sMaterials Research2013，，： | 1 |
| 20 | A DEGREE CONDITION FOR THE EXISTENCE OF CONNECTED [k, k + 1]-FACTORS显示文摘ADEGREECONDITIONFORTHEEXISTENCEOFCONNECTED[k,k+1]-FACTORSADEGREECONDITIONFORTHEEXISTENCEOFCONNECTED[k,k+1]-FACTORS￥CAIMaochen... | CAI Maocheng (Institute of Systems Science, Academia Sinica,Beijing 100080, China) | 1995 | Systems Science and Mathematical Sciences1995，8，4： | 1 |
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