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| 1 | Design and aerodynamic investigation of a parallel vehicle on a wide-speed range显示文摘In order to design a hypersonic vehicle for a wide-ranged Mach number,a novel parallel vehicle for a wide-speed range has been proposed.In this paper,we employ a numerical method to investigate a parallel vehicle’s aerodynamic performance and flow field characteristics.The obtained results show that the aerodynamic performance of the novel parallel vehicle is better than that of the waverider designed with a single Mach number for the wide-speed range.With the increase in Mach number,the lift-to-drag ratio of the novel parallel vehicle first increases and then decreases.When the Mach number is 7 and the angle of attack is 3?,the lift-to-drag ratio is the largest,and its value is 3.968.When the angle of attack is 3?,the lift-to-drag ratio is not lower than 3.786 in the range considered in the current study,and the novel parallel vehicle’s aerodynamic performance is good.The wing changes the drag performance of the parallel vehicle remarkably,and results in the decrease of the lift-to-drag ratio.Meanwhile,the wing can enhance the pitching moment performance. | LI ShiBin HUANG Wei WANG ZhenGuo LEI Jing | 2014 | Science China(Information Sciences)2014，57，12： | 16 |
| 2 | Hydrolysis mechanism of carbendazim hydrolase from the strain Microbacterium sp.djl-6F显示文摘The carbendazim(MBC) hydrolyzing enzyme gene was cloned and heterologously expressed in Escherichia coli BL21(DE3) from a newly isolated MBC-degrading bacterium strain Microbacterium sp. strain djl-6F. High performance liquid chromatography-mass spectrometry(HPLC-MS)analysis revealed that purified MheI-6F protein catalyzes direct hydrolysis of MBC into2-aminobenzimidazole(2-AB) with a high turnover rate and moderate affinity(Kmof6.69 μmol/L and kcatof 160.88/min) without the need for any cofactors. The optimal catalytic condition of MheI-6F was identified as 45°C, pH 7.0. The enzymatic activity of MheI-6F was found to be diminished by metal ions, and strongly inhibited by sodium dodecyl sulfate(SDS).Through generating amino acid mutations in MheI-6F, Cys16 and Cys222 were identified as the catalytic groups that are essential for the hydrolysis of MBC. This is the first report on the biodegradation of MBC at the enzymatice level. | Ji Lei Shaopeng Wei Lijun Ren Shibin Hu Peng Chen | 2017 | Journal of Environmental Sciences2017，29，4： | 3 |
| 3 | Study on a novel and efficient flame retardant synergist-nanoporous nickel phosphates VSB-1 with intumescent flame retardants in polypropylene 显示文摘 | NIE Shibin HU Yuan SONG Lei | 2008 | Polym Adv Technol2008，19，6： | 1 |
| 4 | Preparation and thermal properties of a novel flame retardant copolymer 显示文摘 | Tai Qilong Chen Lijuan Song Lei Nie Shibin Hu Yuan | 2010 | Polymer Degradation and Stability2010，95，5： | 1 |
| 5 | Combustion properties and thermal degradation behavior of polylactide with an effective intumescent flame retardant 显示文摘 | Zhan Jing Song Lei Nie Shibin | 2009 | Polym Degrad Stab2009，94，3： | 1 |
| 6 | Current Gold Prospecting in China显示文摘In China, there are 12 types of gold deposits in 57 class-III metallogenic zones, formed in 7 main metallogenic periods. Most gold deposits are small or occur as ore spots; very large deposits are rare with relatively poor quality, mainly medium to low grade. Only 35% of the total gold reserves is identified, while a large amount of reserves is yet to be identified. In recent years, China Geological Survey has organized or conducted mineral resources survey and evaluation project, replacement resources prospecting for deposits in crisis, old mines prospecting and commercial prospecting funded or encouraged by the Central Government. These efforts have been fruitful. According to the temporal and spatial allocation of gold resources, and experiences from recent prospecting efforts, western China and the deep layers and peripheries of the-sits in eastern China have relatively high prospecting potential. The government should give even more support to the gold industry and strengthen technological innovation to help address difficulties in gold exploitation and processing. The government should also formulate consistent plans, consolidate mining rights, and promote integrated exploration, so as to achieve new major breakthroughs in gold prospecting. Gold is both a form of material wealth and a way of storing wealth. It is a rare resource with dual functions of commodity and currency. As an important global strategic asset and a cornerstone of financial reserves, gold plays an irreplaceable role in securing national economic development, maintaining financial security, strengthening national comprehensive power and promoting RMB internationalization. Based on latest research and prospecting results, the thesis proposes preliminary conclusions on types, temporal and spatial allocation, and exploration and development of gold deposits in China; predicts China's gold resource potential; reviews recent gold prospecting and exploration efforts; and, in the hope of offering some reference for the new round of gold prospecting, exploration and planning, offers some suggestions. | LEI Shibin QING Min NIU Cuiyi WANG Liang | 2016 | Acta Geologica Sinica(English Edition)2016，90，4： | 1 |
| 7 | Study on a nove synergist-nanoporous nicke phosphates VSB-1 with intumescent flame retardants in polypropylene显示文摘 | Nie Shibin Hu Yuan Song and efficient flame retardant Lei | 2008 | Polymer for Advanced Technology2008，19，6： | 1 |
| 8 | Combustion properties and thermal degradation behavior of polylactide with an effective intumescent flame retardant显示文摘 | Jing Zhan Lei Song Shibin Nie et at | 2009 | Polymer Degradation and Stability2009，，94： | 1 |
| 9 | Combustion Properties and Thermal Degradation Behavior of Polylactide with anEffective Intumescent Flame Retardant显示文摘 | Zhan Jing Song Lei Nie Shibin | 2009 | Polymer Degradation andStability2009，94，3： | 1 |
| 10 | Petrogenesis of the Late Triassic shoshonitic Shadegai pluton from the northern North China Craton: Implications for crust-mantle interaction and post-collisional extension显示文摘Latest Permian to Triassic plutons are widespread in the northern North China Craton(NCC); most of them show calc-alkaline, high-K calc-alkaline, or alkaline geochemical features. The Shadegai pluton in the Wulashan area has shoshonitic affinity and I-type character, and is composed of syenogranites containing abundant mafic microgranular enclaves(MMEs). LA-MC-ICP-MS U-Pb data yield weighted mean 206 Pb/238 U ages of 222 ± 1 Ma and 221 ± 1 Ma for the syenogranites and MMEs, respectively, suggesting their coeval formation during the Late Triassic. The syenogranites have high SiO_2(70.42-72.30 wt%),K_2O(4.58-5.22 wt.%) and Na_2O(4.19-4.43 wt.%) contents but lower concentrations of P_2O_5(0.073-0.096 wt.%) and TiO_2(0.27-0.37 wt.%), and are categorized as I-type granites, rather than A-type granites, as previously thought. These syenogranites exhibit lower(^(87)Sr/^(86)Sr)i ratios(0.70532-0.70547) and strongly negative whole-rock εNd(t) values(-12.54 to-11.86) and zircon εHf(t) values(-17.81 to-10.77),as well as old Nd(1962-2017 Ma) and Hf(2023-2092 Ma) model ages, indicating that they were derived from the lower crust.Field and petrological observations reveal that the MMEs within the pluton probably represent magmatic globules commingled with their host magmas. Geochemically, these MMEs have low SiO_2(53.46-55.91 wt.%)but high FeOt(7.27-8.79 wt.%) contents. They are enriched in light rare earth elements(LREEs) and large ion lithophile elements(LILEs), and are depleted in heavy rare earth elements(HREEs) and high field strength elements(HFSEs). They have whole-rock(^(87)Sr/^(86)Sr)i ratios varying from 0.70551 to 0.70564, εNd(t) values of -10.63 to -9.82, and zircon εHf(t) values of -9.89 to 0.19. Their geochemical and isotopic features indicate that they were derived from the subcontinental lithospheric mantle mainly metasomatized by slab-derived fluids, with minor involvement of melts generated from the ascending asthenospheric mantle. Petrology integrated with elemental and isotopic geochemistry suggest that the Shadegai pluton was produced by crust-mantle interactions, i.e., partial melting of the lower continental crust induced by underplating of mantle-derived mafic magmas(including the subcontinental lithospheric mantle and asthenospheric mantle), and subsequent mixing of the mantle-and crust-derived magmas. In combination with existing geological data, it is inferred that the Shadegai pluton formed in a post-collisional extensional regime related to lithospheric delamination following the collision between the NCC and Mongolia arc terranes. | Liqiong Jia Liang Wang Genhou Wang Shibin Lei Xuan Wu | 2019 | Geoscience Frontiers2019，10，2： | 1 |
| 11 | Combustion properties and degradation behavior of polylaetide with an effective intumescent flame retardant显示文摘 | Jing Zhan Lei Song Shibin Nie | 2009 | Polymer Degradation and Stability2009，94，： | 1 |
| 12 | Combustion properties and thermal degradation behavior of polylactide with an effective intumescent flame retardant显示文摘 | Zhan Jing Song Lei Nie Shibin etal | 2009 | Polymer Degradation and Stability2009，94，3： | 1 |
| 13 | Combustion properties and thermal degradation behavior of polylaclide with an effective intumescent flame retardant 显示文摘 | Zhan Jing Song Lei Nie Shibin | 2009 | Polymer Degradation and Stability2009，94，3： | 1 |
| 14 | The catalyzing carbonization properties of acrylonitrile-butadiene-styrene copolymer (ABS)/rare earth oxide (La2 03 ) organophilic montmorillonite ( OMT ) nanocomposites 显示文摘 | NIE Shibin SONG Lei HU Yuan | 2010 | J Polym Res2010，17，1： | 1 |
| 15 | Synergistic effect between a char forming agent (CFA) and microencapsulated ammonium polyphosphate on the thermal and flame retardant properties of polypropylene 显示文摘 | Nie Shibin Hu Yuan Song Lei | 2008 | Polymers for Advanced Technologies2008，19，： | 1 |
| 16 | Combustion properties and thermal degradation behavior of polylactide with an effective intumescent flame retardant显示文摘 | Zhan Jing Song Lei Nie Shibin | 2009 | Polymer Degradation and Stability2009，94，3： | 1 |
| 17 | Study on a novel and efficient flame retardant synergist-nanop-orous nickel phosphates VSB-1 with intumescent flame retardants in polypropy-lene显示文摘 | Shibin Nie Yuan Hu Lei Song | 2008 | Polym Adv Techno12008，19，6： | 1 |
| 18 | Boosting efficiency and stability of 2D alternating cation perovskite solar cells via rational surface-modification: Marked passivation efficacy of anion显示文摘Two-dimensional(2D) alternating cation(ACI) perovskite surface defects,especially dominant iodine vacancies(V_Ⅰ) and undercoordinated Pb^(2+),limit the performance of perovskite solar cells(PVSCs).To address the issue,1-butyl-3-methylimidazolium trifluoro-methane-sulfonate(BMIMOTF) and its iodide counterpart(BMIMI) are utilized to modify the perovskite surface respectively.We find that BMIMI can change the perovskite surface,whereas BMIMOTF shows a nondestructive and more effective defect passivation,giving significantly reduced defect density and suppressed charge-carrier nonradiative recombination.This mainly attributes to the marked passivation efficacy of OTF-anion on V_Ⅰ and undercoordinated Pb^(2+),rather than BMIMI^(+) cation.Benefiting from the rational surface-modification of BMMIMOTF,the films exhibit an optimized energy level alignment,enhanced hydrophobicity and suppressed ion migration.Consequently,the BMIMOTF-modified devices achieve an impressive efficiency of 21.38% with a record open-circuit voltage of 1.195 V,which is among the best efficiencies reported for 2D PVSCs,and display greatly enhanced humidity and thermal stability. | Hualin Zheng Xuefeng Peng Tingxi Chen Ting Zhang Shihao Yuan Lei Wang Feng Qian Jiang Huang Xiaodong Liu Zhi David Chen Yanning Zhang Shibin Li | 2023 | Journal of Energy Chemistry2023，，9： | 0 |
| 19 | Analysis of Ore-Controlling Structures of the Xincheng-Hexi Gold Deposit,Shandong Province,China显示文摘Based on quantitative and semi-quantitative mathematical and mechanical analysis of the shape, motion, structural factors, stress field and deformation field of the ore-hosting faults in the Xincheng-Hexi gold deposit, the ore-controlling features of faults and mineralization mechanism are discussed. It is concluded that the mineralization is controlled by the main faults, subsidiary fractures, joint density, mechanical features and deformation of the faults. The ore bodies are mainly located in the lower part of the convex crest and upper part of the concave trough of the main undulating fault surface. Mineralization is positively correlated to the development of subsidiary fractures and joints, which correspond to zones of low internal stress and high body strain and shear strain. They are favourable positions for mineralization and alteration. | LEI Shibin | 2000 | Acta Geologica Sinica(English Edition)2000，74，3： | 0 |
| 20 | Typomorpic Characteristics of the Major Minerals in the Puziwan Gold Deposit,Datong,Shanxi,China显示文摘利用 minerageny 的理论并且勘探矿物学,作者学习了态度, morphotype 和在 Puziwan 金牌的黄铁矿,黄金,黄铜矿,方铅矿和闪锌矿,石英的非金属的矿物质,碳酸盐,白云石和金红石的金属性的矿物质的化学作文扔。学习显示出下列结果。(1 ) 矿物质集合是复杂的,硫化物的种类与 sulfosalt 矿物质的出现是丰富的。(2 ) 在矿物质的作文是复杂、在那里富有的微元素,包括作为, Sb,双性人, Se, Te, Au, Ag, Cu, Pb, Zn,和 Cr, Ni, V。元素和他们的特定的价值的协会的 typomorphic 特征建议那个金矿化作用与浅 magmatic 被联系热水的活动,形成矿石的液体是从披风或更低的外壳和下降的酸发源的丰富的升起碱 magmatic 水的混合大气的水。(3 ) Ankerite, Fe 富有的闪锌矿,小粒的 Ti 富有的金红石广泛地被散布,它显示大剥光深度,高矿化作用温度。沉积物在斑岩系列的中间、浅的位置被发现。深层不为金矿化作用是有利的。(4 ) 铜矿物质富于矿石,硫化物有铜的高内容,建议在深位置和包围区域的可能的斑岩类型 Cu (Au ) 矿化作用。 | QING Min NIU Cuiyi LEI Shibin | 2008 | Acta Geologica Sinica(English Edition)2008，82，4： | 0 |
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