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Rh nanoparticles stabilized by PEG-substituted triphenyl-phosphine:A highly active and recyclable catalyst for aqueous biphasic hydrogenation of benzene

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Chinese Chemical Letters 2010年第9期21卷 1067-1070页

作者： Ya Dong Lu Yan hua wang Zi lin Jin State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116012 China

Rh nanoparticles stabilized by PEG-substituted triphenyl-phosphine（PETPP,P[C6H4-p-（OCH2CH2）nOH]3） combining double stabilization effects demonstrated high activity and good recyclability in aqueous biphasic hydrogenation of *** value of turnover frequency（TOF） was 3333 h^-***,the rhodium nanoparticle catalyst could be easily recycled for five times without loss in activity.

关键词： Hydrogenation Nanoparticles Rhodium PETPP Aqueous biphasic catalysis

Seismites in the Dasheng Group： New evidence of strong tectonic and earthquake activities of the Tanlu Fault Zone

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Science China Earth Sciences 2016年第3期59卷 601-618页

作者： TIAN Hong Shui Antonius Johannes VAN LOON wang hua lin ZHANG Shen He ZHU Jie wang School of Civil Engineering Shandong Jianzhu University Jinan 250101 China Geological Institute Adam Mickiewicz University Mak6w Polnych 16 61-606 Poznan Poland Earthquake Engineering Research Center of Shandong Province Jinan 250014 China

More than 80 layers of seismites were recognized from the Early Cretaceous Dasheng Group in the Mazhan and Tancheng graben basins in the Tanlu Fault Zone, eastern China. The responsible seismic events took place about 110–100 Ma in the Early Cretaceous. The fault zone was affected at the time by strong tectonics, due to tension-related stretching and scattered squeezing by strike-slip faults. These tectonic activities induced a series of strong earthquakes with Richter magnitudes(M) of 5–8.5. The earthquakes affected saturated or semi-consolidated flood and lake sediments, and produced intra-layer deformations by several processes, including liquefaction, thixotropy, drop, faulting, cracking, filling and folding, which resulted in the formation of various soft-sediment deformation structures, such as dikes and veins of liquefied sand, liquefied breccias, liquefied homogeneous layers, load structures, flame structures, ball-and-pillow structures, boudinage, diapirs, fissure infillings, a giant conglomerate wedge, and syn-sedimentary faults. The seismites are new evidence of tectonic and seismic activities in the Tanlu Fault Zone during the Early Cretaceous; the series of strong seismic events that can be deduced from them must be considered as a response to the destruction of the North China Craton.

关键词： Seismites Dasheng Group Early Cretaceous Seismic event Tanlu Fault Zone Craton destruction

Mechanism and behaviors of Cr3+-doped TiO2

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Journal of Central South University of Technology 2005年第Z1期12卷 59-64页

作者： CHEN Jian-hua wang Xiao-lin GONG Zhu-qing School of Metallurgical Science and Engineering Central South University Changsha 410083 China College of Resources and Environment Guangxi University Nanning 530004 China College of Resources and Environment Guangxi University Nanning 530004 China School of Metallurgical Science and Engineering Central South University Changsha 410083 China

TiO2 powder and TiO2 thin film on the surface of glazed ceramic tile were prepared by sol-gel *** influences of different doping Cr3+ concentration on the photocatalytic activity of TiO2 were discussed, UV-visible and X-ray diffraction analysis were used to test the performance of TiO2 powder and film. The results indicate that photocatalytic activity of doping Cr3+-TiO2 thin film is higher than that of powder, and the interaction between Cr3+-doped and substrate can greatly enhance the photocatalytic activity. The results of X-ray diffraction and photoabsorption show that the Cr3+ -doped energy level in TiO2 is 0. 62 eV high from the top of valence band, which belongs to the type of deep energy level doping. On the basis of the semiconductor energy level theory and Cr3+ dopant energy level, the semiconductor energy level model of Cr3+ in TiO2 powder and thin film were established, and the doping mechanisms of Cr3+-doped in TiO2 powder and thin film were analyzed.

关键词： sol-gel method TiO2 powders and thin films Cr3+ -doped photocatalytic activity

Analysis of Arc Physical Property of Pulsed Tungsten Inert Gas Welding Based on Fowler-Milne Method

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Journal of Shanghai Jiaotong university(Science) 2013年第3期18卷 343-347页

作者： wang lin hua Xue-ming XIAO Xiao LI Fang WU Yi-xiong Welding Engineering Institute Shanghai Jiaotong University Shanghai Key Laboratory of Materials Laser Manufacturing and Modification Shanghai 200240 China

Pulsed tungsten inert gas （TIG） welding is widely used in industry due to its superior properties, so the measurement of arc telnperature is important to analyse welding process. Arc image of spectral line in 794.8 nm is captured by high speed camera; both the Abel inversion and the Fowler-Milne method are used to calculate the temperature distribution of the pulsed TIG welding. Characteristic of transient variation in arc intensity and temperature is analyzed. When the change of current happens, intensity and temperature of arc jump as well, it costs several millisoconds. The flirther the axial position from the tungsten is, the greater the intensity jumps, and the smaller the temperature changes.

关键词： pulsed tungsten inert gas (TIG) welding Fowler-Milne method arc temperature transient variation

Optimization Design of the Multi-Layer Cross-Sectional Layout of An Umbilical Based on the GA-GLM

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China Ocean Engineering 2024年第2期38卷 247-254页

作者： YANG Zhi-xun YIN Xu FAN Zhi-rui YAN Jun LU Yu-cheng SU Qi MAO Yandong wang hua-lin Institute of marine machinery College of Mechanical and Electrical EngineeringHarbin Engineering UniversityHarbin 150001China State Key Laboratory of Structural Analysis Optimization and CAE Software for Industrial EquipmentDepartment of Engineering MechanicsDalian University of TechnologyDalian 116024China Ningbo Institube of Dalian University of Technology Ningbo 315040China

Marine umbilical is one of the key equipment for subsea oil and gas exploitation,which is usually integrated by a great number of different functional components with *** layout of these components directly affects manufacturing,operation and storage performances of the *** the multi-layer cross-sectional layout design of the umbilical,a quantifiable multi-objective optimization model is established according to the operation and storage *** the manufacturing factors,the multi-layering strategy based on contact point identification is introduced for a great number of functional ***,the GA-GLM global optimization algorithm is proposed combining the genetic algorithm and the generalized multiplier method,and the selection operator of the genetic algorithm is improved based on the steepest descent *** algorithm is used to find the optimal solution in the global space,which can converge from any initial layout to the feasible layout *** feasible layout solution is taken as the initial value of the generalized multiplier method for fast and accurate ***,taking umbilicals with a great number of components as examples,the results show that the cross-sectional performance of the umbilical obtained by optimization algorithm is better and the solution efficiency is ***,the multi-layering strategy is effective and *** design method proposed in this paper can quickly obtain the optimal multi-layer cross-sectional layout,which replaces the manual design,and provides useful reference and guidance for the umbilical industry.

关键词： umbilical cross-sectional layout multi-layers GA-GLM optimization

Simulations of Viscous Flow Fields of ASTM Assembly and the Effective Average Velocities of Flow Tubes

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材料热处理学报 2004年第5期25卷 522-526页

作者： LIUYang ZHANGWei-min CHENNai-lu wangMing-hua LIlin-lin YuanJian SchoolofMaterialSci＆Eng ShanghaiJiaoTongUniversityShanghai200030China

With the finite element analysis of viscous quenchant flow fields of the ASTM assembly, the effective average velocities of flow tubes are introduced in this paper. And through the results of experiments, the influenc... 详细信息

关键词： ASTM FEM 计算机模拟冷却曲线流量计管

Deciphering the role of mtH2O2 in hepatic ischemia-reperfusion injury mechanisms with low-background super-resolution fluorogenic probe

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Science China Chemistry 2025年第1期68卷 297-307页

作者： Bin Fang Limin wang Haoqin Li Jiaxin Zhang Yang Ding Pan Pan Li Bo Peng hua Bai lin Li Frontiers Science Center for Flexible Electronics Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials &Engineering Northwestern Polytechnical University Institute of Flexible Electronics (IFE Future Technologies) Xiamen University

Hepatic ischemia-reperfusion injury（HIRI） is characterized by mitochondrial dysfunction and oxidative stress. Monitoring mitochondrial hydrogen peroxide（mtH2O2） levels in real-time through super-resolution imaging is crucial for elucidating its distribution in live cells and its mechanism of action during HIRI. However, low-background fluorogenic probes have been overlooked in the context of super-resolution imaging. In this study, we developed a low-background fluorogenic probe（MitoWG） with the potential for super-resolution morphology-correlated mitochondrial identification to track the fluctuates of mtH2O2in HIRI. Activation of the desirable fluorescence properties of the probe by mtH2O2was confirmed using structural illumination microscopy（SIM）, enabling high-quality mitochondrial imaging with exceptional specificity and *** in mtH2O2levels were successfully observed in both cellular and rat models of HIRI. Furthermore, we associated the decline in mitochondrial redox homeostasis with accelerated mtH2O2production during HIRI, which triggered mitophagy deficiency and led to cell death. In conclusion, Mito-WG possesses excellent photophysical and low-background properties for SIM imaging, making it a promising tool for mtH2O2tracking in HIRI research and clinical diagnosis.

关键词： hepatic ischemia-reperfusion injury low-background mtH2O2-activatable super-resolution imaging fluorogenic probe

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油滴在旋流分离中的相间滑移数值模拟

华东理工大学学报（自然科学版） 2006年第11期32卷 1355-1359页

作者：白志山汪华林华东理工大学化工机械研究所上海200237

为了研究旋流管的分离性能,应用计算流体力学(CFD)方法对旋流管内的旋转湍流流场进行了数值模拟,获得旋流管内的浓度分布、滑移速度和粒级效率曲线。计算结果显示:随着进口流量的增大,粒级效率逐渐增大;在旋流管进口流量为2.0 m3/h时,20... 详细信息

为了研究旋流管的分离性能,应用计算流体力学(CFD)方法对旋流管内的旋转湍流流场进行了数值模拟,获得旋流管内的浓度分布、滑移速度和粒级效率曲线。计算结果显示:随着进口流量的增大,粒级效率逐渐增大;在旋流管进口流量为2.0 m3/h时,20μm油滴颗粒大部分被分离出来;粒级效率与实验结果进行对比,验证数值模拟分离效率结果的可靠性和准确性。分析结果表明:数值模拟结果和实验数据基本一致。

关键词：水力旋流器计算流体力学分离效率数值模拟滑移

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油脱水型水力旋流器压力特性和分离性能

华东理工大学学报（自然科学版） 2006年第4期32卷 488-491页

作者：白志山汪华林华东理工大学化工机械研究所上海200237

建立了旋流脱水装置系统，对旋流芯管的压力特性和分离性能进行了试验研究。在进口流量为2．9m^3／h、压降为0．21MPa条件下，该装置可将原油含水量（P）从0．05～0．08降低到平均0．0045以下，平均脱水率达909／5。用磁感应强度为160m... 详细信息

建立了旋流脱水装置系统，对旋流芯管的压力特性和分离性能进行了试验研究。在进口流量为2．9m^3／h、压降为0．21MPa条件下，该装置可将原油含水量（P）从0．05～0．08降低到平均0．0045以下，平均脱水率达909／5。用磁感应强度为160mT的磁水处理器对分散相进行破乳，强化旋流脱水过程，效果不明显。

关键词：旋流分离脱水磁处理