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| 1 | Variational principles and governing equations in nano-dielectrics with the flexoelectric effect显示文摘The flexoelectric effect is very strong and coupled with large strain gradients for nanoscale dielectrics. At the nanoscale, the electrostatic force cannot be ignored. In this paper, we have established the electric enthalpy variational principle for nanosized dielectrics with the strain gradient and the polarization gradient effect, as well as the effect of the electrostatic force. The complete governing equations, which include the effect of the electrostatic force, are derived from this variational principle, and based on the principle the generalized electrostatic stress is obtained, the generalized electrostatic stress contains the Maxwell stress corresponding to the polarization and strain, and stress related to the polarization gradient and strain gradient. This work provides the basis for the analysis and computations for the electromechanical problems in nanosized dielectric materials. | HU ShuLing & SHEN ShengPing* MOE Key Laboratory for Strength and Vibration, School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，8： | 11 |
| 2 | 1-MCP Regulates Ethanol Fermentation and GABA Shunt Pathway Involved in Kiwifruit Quality During Postharvest Storage显示文摘Kiwifruit(Actinidia deliciosa)‘Bruno’is prone to accumulate ethanol rapidly after respiratory climacteric during storage at ambient conditions without stresses,which causes quality deterioration of the fruit associated with alcohol off-flavor.For maintaining the postharvest quality of kiwifruit‘Bruno’,the effects of 1.0μL•L^−11-methylcyclopropene(1-MCP)treatment on regulating the ethanol fermentation andγ-aminobutyric acid(GABA)shunt pathway associated with control of alcohol off-flavor were investigated during storage at room temperature(24±1)°C for 27 days.The results showed that 1-MCP treatment significantly reduced the respiration rate,ethylene production,decay rate,ascorbic acid(AsA)loss,and delayed the decline in the firmness and titratable acidity(TA),and the increase in total soluble solid(TSS)in kiwifruit.Furthermore,1-MCP treatment effectively inhibited the increases in contents of acetaldehyde,ethanol,and GABA along with the suppressed activities of key enzymes involved in ethanol fermentation and GABA shunt pathway,such as pyruvate decarboxylase(PDC),alcohol dehydrogenase(ADH),glutamate decarboxylase(GAD),and GABA-transaminase(GABA-T)in kiwifruit during storage.In conclusion,1-MCP treatment efficiently regulated the ethanol fermentation and GABA shunt pathway by delaying the ripening process to avoid the alcohol off-flavor development,thereby contributed to maintaining the quality of the kiwifruit. | Maratab Ali Muhammad Ammar Raza Shenge Li Lichao Zhou Chen Huan Shen Shuling Xiaolin Zheng | 2021 | Horticultural Plant Journal2021，7，1： | 7 |
| 3 | Low-cost preparation of mesoporous silica with high pore volume显示文摘Mesoporous silica materials with high pore volume were successfully prepared by the chemical precipitation method, with water glass and a biodegradable nonionic surfactant polyethylene glycol (PEG). The obtained materials were characterized by trans-mission electron microscopy (TEM), scanning electron microscopy (SEM), thermo gravimetric analyzer and differential scanning calorimetry (TG-DSC), nitrogen adsorption-desorption measurements, and X-ray diffraction (XRD). The results showed that the changes of the pore parameters depended on both the surfactant content and heat treatment temperature. When the content of PEG was 10wt/ and the obtained PEG/SiO2 composite was heated at 600°C, the mesoporous silica with a pore volume of 2.2 cm3/g, a BET specific surface area of 361.55 m2/g, and a diameter of 2-4 μm could be obtained. The obtained mesoporous silica materials have po-tential applications in the fields of paint and plastic, as thickening, reinforcing, and flatting agents. | Shuling Shen Wei Wu Kai Guo Jianfeng Chen | 2007 | Journal of University of Science and Technology Beijing2007，14，4： | 4 |
| 4 | Use of Azotobacter sp.as an indicator to detect the toxicity of heavy metals in soils显示文摘A physiological strain of microorganism - Azotobacter sp. has been adopted as an indicator to detect the toxicity of heavy metals in soils. The concentration of heavy metals to which Azotobacter sp. was behaving initially to have the resistance to heavy metals is defined as the critical poisoning concentration. The method of physiological threshold adopted can have a quantitative determination with reproducible results. The determined critical poisoning concentration is basically consistent with the results of heavy metals and arsenic toxicities to the bacteria reported recently in literatures. Total 9 typical soils, including 6 zonal soils and 3 purple soils, in the whole country were determined for the toxicities of 5 heavy metals and arsenic to Azotobacter sp. that resulted in 48 critical poisoning concentrations. | Liao Ruizhang, Shen Qiuqin, Jin Lizhi, Shen Shuling, Qian Houyin and Guan ZhenshengInstitute of Soils and Fertilizers,Chinese Academy of Agricultural Sciences,Beijing,China | 1990 | Journal of Environmental Sciences1990，2，3： | 2 |
| 5 | Particulate flow modelling in a spiral separator by using the Eulerian multi-fluid VOF approach显示文摘The Euler-Euler model is less effective in capturing the free surface of flow film in the spiral separator,and thus a Eulerian multi-fluid volume of fluid(VOF)model was first proposed to describe the particulate flow in spiral separators.In order to improve the applicability of the model in the high solid concentration system,the Bagnold effect was incorporated into the modelling framework.The capability of the proposed model in terms of predicting the flow film shape in a LD9 spiral separator was evaluated via comparison with measured flow film thicknesses reported in literature.Results showed that sharp air–water and air-pulp interfaces can be obtained using the proposed model,and the shapes of the predicted flow films before and after particle addition were reasonably consistent with the observations reported in literature.Furthermore,the experimental and numerical simulation of the separation of quartz and hematite were performed in a laboratory-scale spiral separator.When the Bagnold lift force model was considered,predictions of the grade of iron and solid concentration by mass for different trough lengths were more consistent with experimental data.In the initial development stage,the quartz particles at the bottom of the flow layer were more possible to be lifted due to the Bagnold force.Thus,a better predicted vertical stratification between quartz and hematite particles was obtained,which provided favorable conditions for subsequent radial segregation. | Lingguo Meng Shuling Gao Dezhou Wei Qiang Zhao Baoyu Cui Yanbai Shen Zhenguo Song | 2023 | International Journal of Mining Science and Technology2023，33，2： | 2 |
| 6 | Proton pump inhibitor pantoprazole abrogates adriamycin-resistant gastric cancer cell invasiveness via suppression of Akt/GSK-β/β-catenin signaling and epithelial–mesenchymal transition显示文摘 | Bin Zhang Yan Yang Xiaoting Shi Wanyu Liao Min Chen Alfred Sze-Lok Cheng Hongli Yan Cheng Fang Shu Zhang Guifang Xu Shanshan Shen Shuling Huang Guangxia Chen Ying Lv Tingsheng Ling Xiaoqi Zhang Lei Wang Yuzheng Zhuge Xiaoping Zou | 2014 | Cancer Letters2014，，： | 2 |
| 7 | Microstructure and enhanced H 2 S sensing properties of Pt-loaded WO 3 thin films显示文摘 | Yanbai Shen Baoqing Zhang Xianmin Cao Dezhou Wei Jiawei Ma Lijun Jia Shuling Gao Baoyu Cui Yongcheng Jin | 2014 | Chemical2014，，： | 1 |
| 8 | Synthesis of nano-CaCO_3 composite particles and their application显示文摘Nano 钙碳酸盐合成粒子被两倍单体的中性的乳剂聚合技术综合。合成粒子形成机制被调查。nano-CaCO3-ABS (acrylonitrile-butadiene-styrene 共聚物) 的机械性质上的合成粒子的效果合成材料被学习。合成粒子由 nano 钙碳酸盐核心和丁基 acrylate (BA ) 和苯乙烯(圣) 的轮流出现的共聚物的壳组成,这被验证。壳是化学上 grafted 并且身体上在 nano 钙碳酸盐的表面上包了合成粒子是的 particles.When 填了 ABS 矩阵, CaCO3 粒子同类地作为 nanoscales 在合成材料被驱散。合成材料的影响力量显然在虚度合成粒子的适当数量以后被提高。两倍单体的中性的乳剂聚合是为 nano-CaCO3 表面处理的一个有效方法,这能被结束。 | Wei Wu Xueqin Zhang Jianfeng Chen Shuling Shen | 2008 | Journal of University of Science and Technology Beijing2008，15，1： | 1 |
| 9 | Inhibition of activated Stat3 reverses drug resistance to chemotherapeutic agents in gastric cancer cells显示文摘 | Shuling Huang Min Chen Yonghua Shen Weidong Shen Huimin Guo Qian Gao Xiaoping Zou | 2011 | Cancer Letters2011，，2： | 1 |
| 10 | Stabilizing mechanism of single-atom catalysts on a defective carbon surface显示文摘Single-atom(SA)catalysts represent the ultimate limit of atom use efficiency for catalysis.Promising experimental progress in synthesizing SA catalysts aside,the atomic-scale transformation mechanism from metal nanoparticles(NPs)to metal SAs and the stabilization mechanism of SA catalysts at high temperature remain elusive.Through systematic molecular dynamics simulations,for the first time,we reveal the atomic-scale mechanisms associated with the transformation of a metal NP into an array of stable SAs on a defective carbon surface at a high temperature,using Au as a model material.Simulations reveal the pivotal role of defects in the carbon surface in trapping and stabilizing the Au-SAs at high temperatures,which well explain previous experimental observations.Furthermore,reactive simulations demonstrate that the thermally stable Au-SAs exhibit much better catalyst activity than Au-NPs for the methane oxidation at high temperatures,in which the substantially reduced energy barriers for oxidation reaction steps are the key.Findings in this study offer mechanistic and quantitative guidance for material selection and optimal synthesis conditions to stabilize metal SA catalysts at high temperatures. | Lianping Wu Shuling Hu Wenshan Yu Shengping Shen Teng Li | 2020 | npj Computational Materials2020，，1： | 0 |
| 11 | For more and purer hydrogen-the progress and challenges in water gas shift reaction显示文摘The water gas shift(WGS) reaction is a standard reaction that is widely used in industrial hydrogen production and removal of carbon monoxide. The improved catalytic performance of WGS reaction also contributes to ammonia synthesis and other reactions. Advanced catalysts have been developed for both high and low-temperature reactions and are widely used in industry. In recent years, supported metal nanoparticle catalysts have been researched due to their high metal utilization. Low-temperature catalysts have shown promising results, including high selectivity, high shift rates, and higher activity potential. Additionally, significant progress has been made in removing trace CO through the redox reaction in electrolytic cell. This paper reviews the development of WGS reaction catalysts, including the reaction mechanism, catalyst design, and innovative research methods. The catalyst plays a crucial role in the WGS reaction, and this paper provides an instant of catalyst design under different conditions. The progress of catalysts is closely related to the development of advanced characterization techniques.Furthermore, modifying the catalyst surface to enhance activity and significantly increase reaction kinetics is a current research direction. This review goals to stimulate a better understanding of catalyst design, performance optimization, and driving mechanisms, leading to further progress in this field. | Limin Zhou Yanyan Liu Shuling Liu Huanhuan Zhang Xianli Wu Ruofan Shen Tao Liu Jie Gao Kang Sun Baojun Li Jianchun Jiang | 2023 | Journal of Energy Chemistry2023，，8： | 0 |
| 12 | CALCULATION OF FUEL SLOSHING AND ITS COUPLING VIBRATION WITH A TANK显示文摘The response of fuel-tank-sloshing to aircraft maneuver is a difficult mathematical problem to be solved. Beginning with setting up the mechanical model and the respective mathematical model, this paper uses both F.E. and B.E.M. to imitate the sloshing process. The paper has developed some special techniques to deal with strong nonlinear characteristics, and provided satisfactory numerical results of displacements and stress for low frequency, resonance, high frequency and fuel tank dynamic response characteristics. The program not only assures convergence and stability of the solution, but also has the function of graphic display. It is a valuable technique to deal with the strong nonlinear oscillation of fuel tank with large amplitude and moving boundary condition on free surface. | Sun Shuling, Liu Yuqi and Zhou AnningChinese Helicopter Research and Development Institute (CHRADI) Feng Zhenxing, Ye Biquan and Shen ChengwuWuhan University | 1991 | Chinese Journal of Aeronautics1991，6，3： | 0 |
| 13 | Synthesis and in-situ noble metal modification of WO3·0.33H2O nanorods from a tungsten-containing mineral for enhancing NH3 sensing performance显示文摘Ag-and Pt-doped WO3-0.33 H2O nanorods with high response and selectivity to NH3 were synthesized from a tungsten-containing mine ral of scheelite concentrate by a simple combined process,namely by a high pressure leaching method to obtain tungstate ions-containing leaching solution and followed by a hydrothermal method to prepare corresponding nanorods.The microstructure and NH3 sensing perfo rmance of the final products were investigated systematically.The microstructure characte rization showed that the as-prepared WO3-0.33 H2 O nanorods had a hexagonal crystal structure,and Ag and Pt nanoparticles were uniformly distributed in the WO3-0.33 H2O nano rods.Gas sensing measurements indicated that Ag and Pt nanopa rticles not only could obviously enhance NH3 sensing properties in terms of response,selectivity as well as response/recovery time,but also could reduce the optimal operating temperature at which the highest response was achieved.The highest responses of 22.4 and 47.6 for Agand Pt-doped WO3-0.33 H2O nanorods to 1000 ppm NH3 were obtained at 225 and 175℃,respectively,which were about four and eight folds higher than that of pure one at 250℃.The superior NH3 sensing properties are mainly ascribed to the catalytic activities of noble metals and the different work functions between noble metals and WO3-0.33 H2 O. | Tingting Li Yanbai Shen Sikai Zhao Pengfei Zhou Xiangxi Zhong Shuling Gao Dezhou Wei Fanli Meng | 2020 | Chinese Chemical Letters2020，31，8： | 0 |
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