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44篇 您的检索式:作者名="LiangFeng"
    题名 作者 年代 出处 被引量
1Risk analysis system of geo-hazard based on GIS technique显示文摘The socio-economic attribute of geo-hazard made us distinguish it fiom the traditional engineering geology study. It will get more social benefit from the analysis of the geo-hazard in the socio-economic attribute. The hazard and the vulnerability of the element controls the risk level of the regional geo-hazard. The risk analysis supported by GIS in geo-hazard study is one of the most important directions. Based on the author′s studies in recent years, a risk analysis system of regional geo-hazard (RiskAnly) has been developed on the basis of software MAPGIS. The paper introduces the train of system design, the structure and the workflow of RiskAnly. As a case study, the paper also deals with the risk zonation of the regional landslide hazard of China.ZHU Liangfeng, ZHANG Guirong, YIN Kunlong, ZHANG Liang (1. Faculty of Engineering, China University of Geosciences, Wuhan 430074, China 2. China Research Institute of Land Resources and Economy, Beijing 101149, China) 2002Journal of Geographical Sciences2002,12,3:11
2Framework system and research flow of uncertainty in 3D geological structure models显示文摘Uncertainty in 3D geological structure models has become a bottleneck that restricts the development and application of 3D geological modeling.In order to solve this problem during periods of accuracy assessment,error detection and dynamic correction in 3D geological structure models,we have reviewed the current situation and development trends in 3D geological modeling.The main context of uncertainty in 3D geological structure models is discussed.Major research issues and a general framework system of uncertainty in 3D geological structure models are proposed.We have described in detail the integration of development practices of 3D geological modeling systems,as well as the implementation process for uncertainty evaluation in 3D geological structure models.This study has laid the basis to build theoretical and methodological systems for accuracy assessment and error correction in 3D geological models and can assist in improving 3D modeling techniques under complex geological conditions.ZHU, Liangfeng ZHUANG, Zhiyi 2010Mining Science and Technology2010,20,2:7
3A heteropore covalent organic framework for adsorptive removal of Cd(Ⅱ) from aqueous solutions with high efficiency显示文摘A heteropore covalent organic framework(COF) integrating tetraphenylethene skeleton and catechol segment is designed and synthesized.It exhibits extremely high stability in water under different pH conditions,which makes it an excellent material for adsorptive removal of Cd(Ⅱ) from aqueous solutions with very fast adsorption kinetics,high uptake capacity,and good recyclability.Na Liu Liangfeng Shi Xianghao Han Qiao-Yan Qi Zong-Quan Wu Xin Zhao 2020Chinese Chemical Letters2020,31,2:6
4Effects of rare earth La on the microstructure and melting property of(Ag-Cu_(28))-30Sn alloys prepared by mechanical alloying显示文摘To obtain novel intermediate temperature alloy solders with a melting temperature of 400-600°C,nominal(Ag-Cu28)-30Sn alloys without or with a trace addition(0.5 or 1.0 wt.%) of rare earth(RE) element La were prepared by mechanical alloying.The aim of this research is to investigate the effects of the addition of La on the microstructures,alloying process and melting properties of(Ag-Cu28)-30Sn alloys.The results show that the addition of La produces no new phase.A trace amount of La addition can effectively refine the grain size,but the excessive addition of 1.0 wt.% La inhibits the alloying process.The influence of La on the melting temperatures of solder alloys is negligible.However,the trace addition of 0.5 wt.% La can distinctly reduce the fusion zone and improve the melting property of(Ag-Cu28)-30Sn alloys.LI Liangfeng QIU Tai YANG Jian FENG Yongbao 2011Rare Metals2011,30,1:6
5NUMERICAL SIMULATION OF WET STEAM CONDENSING FLOW WITH AN EULERIAN/EULERIAN MODEL显示文摘Wet steam condensing flow in low-pressure steam turbine leads to efficiency losses and blade erosions.In order to investigate this problem by numerical approach, an Eulerian/Eulerian model has been developed, in which the wet steam is regarded as mixture comprising two coupled systems: the vapor phase and the liquid phase.These two systems are both described by conservation equations.High resolution TVD scheme is employed to capture condensing phenomena in wet steam flow.This model has been validated by numerical simulations of condensing flows in 1D and 2D nozzles.Compared with experimental data, a good agreement is observed.This Eulerian/Eulerian model can be extended to 3D calculation of condensing flow.Li LiangFeng ZhenpingLi GuojunState Key Laboratory of Multiphase Flowin Power Engineering,Xi’ an Jiaotong University,XI’ an 710049, China 2003Chinese Journal of Mechanical Engineering2003,16,2:3
6Disassemblability Modeling Technology of Configurable Product Based on Disassembly Constraint Relation Weighted Design Structure Matrix(DSM)显示文摘The current research of configurable product disassemblability focuses on disassemblability evaluation and disassembly sequence planning.Little work has been done on quantitative analysis of configurable product disassemblability.The disassemblability modeling technology for configurable product based on disassembly constraint relation weighted design structure matrix(DSM)is proposed.Major factors affecting the disassemblability of configurable product are analyzed,and the disassembling degrees between components in configurable product are obtained by calculating disassembly entropies such as joint type,joint quantity,disassembly path,disassembly accessibility and material compatibility.The disassembly constraint relation weighted DSM of configurable product is constructed and configuration modules are formed by matrix decomposition and tearing operations.The disassembly constraint relation in configuration modules is strong coupling,and the disassembly constraint relation between modules is weak coupling,and the disassemblability configuration model is constructed based on configuration module.Finally,taking a hydraulic forging press as an example,the decomposed weak coupling components are used as configuration modules alone,components with a strong coupling are aggregated into configuration modules,and the disassembly sequence of components inside configuration modules is optimized by tearing operation.A disassemblability configuration model of the hydraulic forging press is constructed.By researching the disassemblability modeling technology of product configuration design based on disassembly constraint relation weighted DSM,the disassembly property in maintenance,recycling and reuse of configurable product are optimized.QIU Lemiao LIU Xiaojian ZHANG Shuyou SUN Liangfeng 2014Chinese Journal of Mechanical Engineering2014,27,3:3
7Corynoxine B targets at HMGB1/2 to enhance autophagy forα-synuclein clearance in fly and rodent models of Parkinson's disease显示文摘Parkinson's disease(PD)is the most common neurodegenerative movement disease.It is featured by abnormal alphα-synuclein(α-syn)aggregation in dopaminergic neurons in the substantia nigra.Macroautophagy(autophagy)is an evolutionarily conserved cellular process for degradation of cellular contents,including protein aggregates,to maintain cellular homeostasis.Corynoxine B(Cory B),a natural alkaloid isolated from Uncaria rhynchophylla(Miq.)Jacks.,has been reported to promote the clearance ofα-syn in cell models by inducing autophagy.However,the molecular mechanism by which Cory B induces autophagy is not known,and theα-syn-lowering activity of Cory B has not been verified in animal models.Here,we report that Cory B enhanced the activity of Beclin 1/VPS34 complex and increased autophagy by promoting the interaction between Beclin 1 and HMGB1/2.Depletion of HMGB1/2 impaired Cory B-induced autophagy.We showed for the first time that,similar to HMGB1,HMGB2 is also required for autophagy and depletion of HMGB2 decreased autophagy levels and phosphatidylinositol 3-kinaseⅢactivity both under basal and stimulated conditions.By applying cellular thermal shift assay,surface plasmon resonance,and molecular docking,we confirmed that Cory B directly binds to HMGB1/2 near the C106 site.Furthermore,in vivo studies with a wild-typeα-syn transgenic drosophila model of PD and an A53Tα-syn transgenic mouse model of PD,Cory B enhanced autophagy,promotedα-syn clearance and improved behavioral abnormalities.Taken together,the results of this study reveal that Cory B enhances phosphatidylinositol 3-kinaseⅢactivity/autophagy by binding to HMGB1/2 and that this enhancement is neuroprotective against PD.Qi Zhu Juxian Song Jia-Yue Chen Zhenwei Yuan Liangfeng Liu Li-Ming Xie Qiwen Liao Richard D.Ye Xiu Chen Yepiao Yan Jieqiong Tan Chris Soon Heng Tan Min Li Jia-Hong Lu 2023Acta Pharmaceutica Sinica B2023,13,6:2
8Synthesis and Crystal Structure of New Supramolecular Adducts of[PtCl_6]^(2-) with Cucurbit [7] uril:[(H_3O)_2 [PtCl_6]_3 [C_(42)H_(42)N_(28)O_ (14)_2·H_2O显示文摘A novel supramolecular adduct 3(C 42H 42N 28O 14) 2·H 2O (1) was synthesized by mixing 2- and cucurbit uril in solution of hydrochloric acid. The crystal structure was determined by single crystal X-ray diffraction analysis. The crystal belongs to orthorhombic system and space group F dd2 with cell dimensions: a=4.705 33 (5) nm, b=7.153 80 (6) nm, c= 1.894 61 (2) nm, Z=16, V=63.7744 (11) nm3, D c= 1.534 g/cm3, μ=3.007 mm -1, F(000)=29 120, R 1= 0.070 7, wR 2=0.169 2. In crystal, the cucurb uril molecules form two zig-zag chains.YanKun HuangZi--xiang LiuSi-min LiangFeng WuCheng-tai 2004Wuhan University Journal of Natural Sciences2004,9,1:2
9Seismic damage analysis of the outlet piers of arch dams using the finite element sub-model method显示文摘This study aims to analyze seismic damage of reinforced outlet piers of arch dams by the nonlinear finite element(FE) sub-model method. First, the dam–foundation system is modeled and analyzed, in which the effects of infinite foundation, contraction joints, and nonlinear concrete are taken into account. The detailed structures of the outlet pier are then simulated with a refined FE model in the sub-model analysis. In this way the damage mechanism of the plain(unreinforced) outlet pier is analyzed, and the effects of two reinforcement measures(i.e., post-tensioned anchor cables and reinforcing bar) on the dynamic damage to the outlet pier are investigated comprehensively. Results show that the plain pier is damaged severely by strong earthquakes while implementation of post-tensioned anchor cables strengthens the pier effectively. In addition, radiation damping strongly alleviates seismic damage to the piers.Song Liangfeng Wu Mingxin Wang Jinting Xu Yanjie 2016Earthquake Engineering and Engineering Vibration2016,15,3:2
10Preparationandcharacterizationofattapulgite-silvernanocomposites,andtheirapplicationtotheelectrochemicaldeterminationofnitrobenzene显示文摘LiangFeng LiuBenzhi DengYuehua etal 2011MicrochimActa2011,174,:1
11Evaluating Efficiency of Alkaline Treatment for Waste Bagasse显示文摘Yan Chen Liangfeng Sun Ioan.Negulescu 0,,:1
12Study of groundwater mixing using CFC data显示文摘Han Liangfeng Pang Zhonghe Groening M 2001Science in China(Series E)2001,,:1
13Continuous synthesis of Y-junction carbon nanotubes by catalytic CVD显示文摘 Wang Jiannong Yu fan 2005Chem Vap Deposition2005,11,:1
14Cu/Si O2catalysts prepared by the ammonia-evaporation method:texture,structure,and catalytic performance in hydrogenation of dimethyl oxalate to ethylene glycol显示文摘Chen Liangfeng Guo Pingjun Qiao Minghua 2008Journal of Catalysis2008,257,1:1
15Electrogenerated chemiluminescence from PbS quantum dots 显示文摘SUN Liangfeng BAO Lei HYUN B R 2009Nano Lett2009,9,2:1
16SolidEarth: a new Digital Earth system for the modeling and visualization of the whole Earth space显示文摘尽管许多归化为美国人的数字地球系统证明了为建模和与地球表面相关、近表面的 geospatial 对象的可视化相当有用,他们没为在地质或大气的空格当模特儿和应用程序的目的被设计。对能与完整的维数处理 geospatial 信息的一个新数字地球系统有紧迫的需要。在这份报纸,我们在场一个新数字地球系统,称为的 SolidEarth 作为为包括它的表面当模特儿和整个地球空间的可视化的一个其他的虚拟地球,内部、外面的空间。SolidEarth 由四个功能的部件组成:在地理空间当模特儿,在地质的空间当模特儿,在大气的空间当模特儿,并且,综合可视化和分析。SolidEarth 有一个全面处理到第三种空间尺寸和一系列复杂 3D 空间分析功能。因此,它对容量的表示和 inner/ 的视觉分析很相配在地球空间的外部范围。SolidEarth 能在象地球科学研究那样的很多个领域里被使用,教育,数字地球应用程序的构造,和另外的专业版土练习科学。Liangfeng ZHU Jianzhong SUN Changling LI Bing ZHANG 2014Frontiers of Earth Science2014,8,4:1
17Determination of ethamsylate in pharmaceutical preparations by irreversible biamperometry显示文摘CHEN Jiaquan SONG Junfeng CHEN Liangfeng 2005Microchemical Journal2005,80,1:1
18Cu/SiO2 Catalysts Prepared by the Ammonia-Evaporation Method: Texture, Structure, and Catalytic Performance in Hydrogena- tion of Dimethyl Oxalate to Ethylene Glycol 显示文摘Chela Liangfeng Guo Pingjun Qiao Minghua 2008J Catal2008,257,1:1
19EGFR and erbB2 differentially regulate Raf-1 translocation and activation显示文摘Zhang Liangfeng Bewick Mary Lafrenie 2002Laboratory investigation2002,82,1:1
20Asse- ssing impact of irrigation water on groundwater recharge and quality in arid environment using CFCs, tritium and stable isotopes, in the Zhangye Basin, Northwest China 显示文摘Qin Dajun Qian Yunping Han Liangfeng 2011Journal of Hydrology2011,405,12:1
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