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| 1 | Microstructures of metallic film and diamond growth from Fe-Ni-C system显示文摘The microstructures of metallic film surrounding diamond have been systemically studied using the transmission electron microscopy (TEM) and the atom force microscopy (AFM). The film can be divided into three layers (inner layer near diamond, external layer near graphite and middle layer). The graphite cannot be directly transformed into diamond in the film at HTHP: there exists a parallelrelationship between (111) of γ-(Fe,Ni) and (110) of Fe3C in the inner layer; the sawtooth-like step morphology found by AFM on the film is similar to that of corresponding diamond surface. A new model for diamond growth at HPHT is proposed from the parallel relationship and sawtooth-like step morphology. It is believed that Fe3C may be a transitional phase in the course of diamond growth, γ-(Fe,Ni) in the inner layer can absorb carbon atom groups with lamella structure from Fe3C, and then the carbon groups stack on growing diamond. | XU Bin LI Musen YIN Longwei CUI Jianjun LIU Yuxian GONG Jianhong | 2002 | Chinese Science Bulletin2002，47，15： | 12 |
| 2 | The desumoylating enzyme sentrin-specific protease 3 contributes to myocardial ischemia reperfusion injury显示文摘Sentrin-specific protease 3(SENP3), a member of the desumoylating enzyme family, is known as a redox sensor and could regulate multiple cellular signaling pathways. However, its implication in myocardial ischemia reperfusion(MIR) injury is unclear. Here, we observed that SENP3 was expressed and upregulated in the mouse heart depending on reactive oxygen species(ROS) production in response to MIR injury. By utilizing si RNA-mediated cardiac specific gene silencing, SENP3 knockdown was demonstrated to significantly reduce MIR-induced infarct size and improve cardiac function. Mechanistic studies indicated that SENP3 silencing ameliorated myocardial apoptosis mainly via suppression of endoplasmic reticulum(ER) stress and mitochondrial-mediated apoptosis pathways. By contrast, adenovirusmediated cardiac SENP3 overexpression significantly exaggerated MIR injury. Further molecular analysis revealed that SENP3 promoted mitochondrial translocation of dynamin-related protein 1(Drp1) in reperfused myocardium. In addition, mitochondrial division inhibitor-1(Mdivi-1), a pharmacological inhibitor of Drp1, significantly attenuated the exaggerated mitochondrial abnormality and cardiac injury by SENP3 overexpression after MIR injury. Taken together, we provide the first direct evidence that SENP3 upregulation pivotally contributes to MIR injury in a Drp1-dependent manner, and suggest that SENP3 suppression may hold therapeutic promise for constraining MIR injury. | Lingchen Gao Yichao Zhao Jie He Yang Yan Longwei Xu Nan Lin Qingqi Ji Renyang Tong Yanan Fu Yu Gao Yuanyuan Su Ancai Yuan Ben He Jun Pu | 2018 | Journal of Genetics and Genomics2018，45，3： | 5 |
| 3 | Enhanced permeation performance of polyether-polyamide block copolymer membranes through incorporating ZIF-8 nanocrystals显示文摘Membrane-based CO_2 separation is a promising alternative in terms of energy and environmental issues to other conventional techniques. Polyether-polyamide block copolymer(Pebax) membranes are promising for CO_2 separation because of their excellent selectivity, but limited by their moderate gas permeability. In this study,fresh-prepared zeolitic imidazolate framework-8(ZIF-8) nanocrystals were integrated into the Pebax?1657matrices to form mixed matrix membranes. The resulting membrane exhibits significantly improved CO_2permeability(as high as 300% increase), without the sacrifice of the selectivity, to the pristine polymer membrane. Several physical characterization techniques were employed to confirm the good interfacial interaction between ZIF-8 fillers and Pebax matrices. The effect of added ZIF-8 fillers on the transport mechanism through MMMs is also explored. Mixed-gas permeation for both CO_2/N_2 and CO_2/CH_4 was also evaluated. The separation performance for CO_2/CH_4 mixtures on the ZIF-8/Pebax MMMs is very close to the Roberson upper bound, and thus is technologically attractive for purification of natural gas. | Longwei Xu Long Xiang Chongqing Wang Jian Yu Lixiong Zhang Yichang Pan | 2017 | Chinese Journal of Chemical Engineering2017，25，7： | 5 |
| 4 | A high-performance potassium-ion capacitor based on a porous carbon cathode originated from the Aldol reaction product显示文摘Potassium-ion capacitors(KICs) emerge as a promising substitute for the well-developed lithium-ion capacitors(LICs),however,the energy density of KICs is below expectations because of lacking a suitable electrical double-layer positive electrode.Using chemical activation of the Aldol reaction product of acetone with KOH,we synthesized a porous ca rbon with a Brunauer-Emmett-Teller surface area of up to 2947 m2/g and a narrow pore size distribution ranging from 1 nm to 3 nm.Half-cell(versus potassium metal) test demonstrates that this porous carbon has high capacitive performance in K+ based organic electrolytes.Furthermore,a novel KIC fabricated by this porous carbon as the cathode,yields high values of energy density and power density.The processes used to make this porous carbon are readily low-cost to fabricate metal-ion capacitors. | Xu Yu Mingjie Shao Xuemei Yang Chongxing Li Tong Li Danyu Li Rutao Wang Longwei Yin | 2020 | Chinese Chemical Letters2020，31，9： | 1 |
| 5 | MEMS-Based Rotary Strapdown Inertial Navigation System 显示文摘 | Sun Wei Wang Daxue Xu Longwei | 2013 | Measurement2013，46，8： | 1 |
| 6 | Influence of Heating Rate on Double Reversible Transformation in CuZnAlMnNi Shape Memory Alloy显示文摘The influence of heating rate on double reversible transformation in CuZnAlMnNi shape memory alloy was investigated by differential scanning calorimetry. It was found that rapid heating inhibits X-M transformation but is fa- vorable to the reverse medensite transformation, giving rise to the approach of the two transformation peaks. With the decrease of heating rate, the two transformation peaks separate gradually. | Yujun Bai, Chengwei Lu, Xiangang Xu, Guili Geng, Longwei Yin (Mechanical Department, Shandong University of Science and Technology, Jinan 250031, China Institute of Materials Science and Engineering, Shandong University, Jinan 250061, China) | 2001 | Rare Metals2001，20，2： | 1 |
| 7 | QTL underlying iron and zinc toxicity tolerances at seedling stage revealed by two sets of reciprocal introgression populations of rice(Oryza sativa L.)显示文摘Iron and zinc are two trace elements that are essential for rice. But they are toxic at higher concentrations, leading to severe rice yield losses especially in acid soils and inland valleys. In this study, two reciprocal introgression line(IL) populations sharing the same parents were used with high-density SNP bin markers to identify QTL tolerant to iron and zinc toxicities. The results indicated that the japonica variety 02,428 had stronger tolerance to iron and zinc toxicities than the indica variety Minghui 63. Nine and ten QTL contributing to iron and zinc toxicity tolerances,respectively, were identified in the two IL populations. The favorable alleles of most QTL came from 02,428. Among them, q FRRDW2, q ZRRDW3, and q FRSDW11 appeared to be independent of genetic background. The region C11S49–C11S60 on chromosome 11 harbored QTL affecting multiple iron and zinc toxicity tolerance-related traits, indicating partial genetic overlap between the two toxicity tolerances. Our results provide essential information and materials for developing excellent rice cultivars with iron and/or zinc tolerance by marker-assisted selection(MAS). | Huan Liu Aijaz Soomro Yajun Zhu Xianjin Qiu Kai Chen Tianqing Zheng Longwei Yang Danying Xing Jianlong Xu | 2016 | The Crop Journal2016，4，4： | 1 |
| 8 | A Comprehensive Porosity Prediction Model for the Upper Paleozoic Tight Sandstone Reservoir in the Daniudi Gas Field, Ordos Basin显示文摘This paper investigated the porosity controlling factors for tight sandstone reservoir in the Daniudi gas field, Ordos Basin based on an integrated petrographic, petrophysical and geostatistical analyses, and proposed a comprehensive prediction model for reservoir porosity. Compaction was found to be a key factor for causing reservoir densification. The degree of sandstone compaction appears to be affected by grain sizes and sorting. Under normal compaction conditions(e.g., cement content less than 6%, and with no dissolution), the variation in reservoir porosity with burial depth can be well correlated with grain compositions, grain sizes, and sorting. Based on qualitative examination of the controlling factors for reservoir porosities, geostatistics were used to quantify the effects of various geological parameters on reservoir porosities. A statistical model for comprehensive prediction of porosity was then established, on the assumption that the present reservoir porosity directly relates to both normal compaction and diagenesis. This model is easy to use, and has been validated with measured porosity data. The porosity controlling factors and the comprehensive porosity prediction can be used to quantify effects of the main controlling factors and their interaction on reservoir property evolution, and may provide a reference model for log interpretation. | Longwei Qiu Shengchao Yang Changsheng Qu Ningning Xu Qingsong Gao Xiangjin Zhang Xugang Liu Donghui Wang | 2017 | Journal of Earth Science2017，28，6： | 1 |
| 9 | Valance electron structure of carbide-diamond interface and catalytic mechanism for diamond synthesis under high-pressure and high-temperature显示文摘包围形成在下面的一颗合成钻石的金属性的电影高压、高温度(HPHT ) 被扫描电子显微镜学(SEM ) 面对基于 Fe 、基于 Ni 的催化剂学习, X 光检查衍射(XRD ) 和传播电子显微镜学(TEM ) 。碳化物是为钻石的成核和生长的主要的碳来源,这被显示出。把理论基于 EET (在固体和分子的实验电子理论) ,在碳化物之间的接口的原子价电子结构(Fe3C, Ni3C,(Fe, Ni ) 3C ) 并且钻石用结合的长度差别(BLD ) 被计算方法。Thomas-Fermi-Dirac-Cheng (TFDC ) 的边界标准:“在原子的联系表面上是相等的电子密度被使用分析碳化物钻石接口的原子价结构。结果基于计算挂布电子结构在有试验性的结果的好一致。这研究是很有用的揭示钻石成核和生长的催化机制并且为钻石合成设计新催化剂。 | GONG Jianhong XU Bin YIN Longwei QI Yongxin LI Li SU Qingcai LI Musen | 2006 | Progress in Natural Science:Materials International2006，16，8： | 1 |
| 10 | Mechanism transformation of cyclohexene-thiophene competitive adsorption in FAU zeolite显示文摘Competition of hydrocarbon compounds with sulfides in gasoline has caused a not very high selectivity of sulfides in adsorption desulfurization so far,resulting in a reduction of catalyst lifetime as well as more sulfur oxide emissions.Tostudy the whole competitive process changing with the increase of the loading,the dynamic competition adsorption mechanism of cyclohexene and thiophene in siliceous faujasite(FAU)zeolite was analyzed by the Monte Carlo simulation.The results showed that with the increase of the loading,thiophene and cyclohexene had different performances before and after the inflection point of 40 molecule/UC.The adsorbates were distributed ideally at optimal sites during the stage that occurred before the inflection point,which is called the“optimal-displacement adsorption”stage.When approaching the inflection point,the competition became apparent and the displacement appeared accordingly,some thiophene molecules at S sites(refers to the sites inside the supercages)were displaced by cyclohexene.After the inflection point,the concentration of adsorbates at W sites(refers to the 12-membered ring connecting the supercages)was significantly reduced,whereas the adsorbates at S sites got more concentrated.The stage some cyclohexene molecules displaced by thiophene and inserted into the center of the supercage can be named as the“insertion-displacement adsorption”stage,and both the adsorption behavior and the competitive relationship became localized when the adsorption amount became saturated.This shift in the competitive adsorption mechanism was due to the sharp increase of interaction energy between the adsorbates.Besides,the increase in temperature and ratio of Si/Al will allow the adsorbates,especially thiophene molecules to occupy more adsorption sites,and it is beneficial to improve the desulfurization selectivity. | Pei Xue Meng Zheng Longwei Wang Liyuan Cao Liang Zhao Jinsen Gao Chunming Xu | 2021 | Chinese Journal of Chemical Engineering2021，34，11： | 0 |
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