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13篇 您的检索式:作者名="QingLiang Zeng"
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1Application of a screw conveyor with axial tilt blades on a shearer drum and investigation of conveying performance based on DEM显示文摘Screw conveyors are widely employed in industrial fields for conveying bulk materials.The shearer drum which uses the screw conveying principle is responsible for excavation and conveying coal particles onto the chain conveyor.Screw conveyor performance is affected by potential factors,such as the blade axial tilt angle and style,core shaft form and diameter.The effect of blade axial tilt angle on the conveying performance was investigated with the help of DEM.In the case of the screw conveyor,the mass flow rate,and particle axial velocity increased with increasing positive axial tilt angle,and declined with increasing negative axial tilt angle.In the case of the drum,the mass flow rate,particle axial velocity,and loading rate first increased and then decreased with increasing positive axial tilt angle,and decreased with increasing negative axial tilt angle.These results can be considered as a benchmark for screw conveyor and drum structural designs with axial tilt screw blades.Liqing Sun Xiaodi Zhang Qingliang Zeng Kuidong Gao Kao Jiang Jiawei Zhou 2022Particuology2022,20,2:3
2Long-term exposure to decabrominated diphenyl ether mpairs CD8 T-cell function in adult mice显示文摘Weihong Zeng Ying Wang Zhicui Liu Asma Khanniche Qingliang Hu Yan Feng Weiyi Ye Jianglong Yang Shujun Wang Lin Zhou Hao Shen Yan Wang 2014Cellular & Molecular Immunology2014,11,4:3
3Rotational motions of the Ms7.0 Jiuzhaigou earthquake with ground tilt data显示文摘Observation and research of rotational motions induced by earthquake has been ignored in the past decades due to the lack of understanding of important ground rotational motions and practical difficulty involved in directly measuring the rotational components. Currently, there is a paucity of methods to directly measure rotational motions in China. The present study attempts to discuss the possibility of obtaining seismic rotation from ground tilt data. The rotational motions generated by shear dislocation source are derived based on the displacement formula of elastic wavefields in the homogenous space. The characteristics of the three components of translational and rotational motions in near, intermediate, and far fields are compared and analyzed. Based on the corresponding relationship between the rotation and ground tilt on free surface boundary, a method to indirectly construct the rotational motions in the layered half space is obtained. Finally, the theoretical rotational motions generated by the Ms7.0 earthquake in Jiuzhaigou, Sichuan Province, on August 8, 2017 are calculated. The results indicate that the rotational motions generated by the Jiuzhaigou earthquake are concentrated in the vicinity of the epicenter(approximately150 km) and mainly distributed in the area perpendicular to the fault strike. The existence of free surface boundary attenuates the total energy of the rotational field and especially in the direction of the dominant energy. The ground tilt data is compared with rotational motions in the layered half space, and the results indicate that theoretical rotations and actual ground tilt data are essentially consistent, especially in the far field region. Thus, it is possible to obtain horizontal components of rotation from ground tilt data, and this provides more information for a complete description of the motion characteristics of an underground medium.Cong ZHOU Xiangzhi ZENG Qingliang WANG Wenyi LIU Cuizhi WANG 2019Science China Earth Sciences2019,62,5:2
4Comparison of Mastoscopic and Conventional Axillary Lymph Node Dissection in Breast Cancer: Long-term Results From a Randomized, Multicenter Trial显示文摘Chengyu Luo Wenbin Guo Jie Yang Qiuru Sun Wei Wei Suhua Wu Shubing Fang Qingliang Zeng Zhensheng Zhao Fanjie Meng Xuandong Huang Xianlan Zhang Ruihua Li Xiufeng Ma Chaoying Luo Yun Yang 2012Mayo Clinic Proceedings2012,,12:1
5Entity attribute discovery and clustering from online reviews显示文摘产生用户的内容(UGC ) 的快速的增加是为实体,产品,和服务的名声管理的富有的来源。作为一个具体例子看联机产品评论,在评论,顾客们通常在产品的多重属性上给意见,因此挑战是自动地提取并且聚类被提及的属性。在这份报纸,我们用一条监督半的途径调查有效属性抽取模型。明确地,我们作为把训练抽取的一个自举的纲要由利用标记的评论和很多未标记的评论的小数量建模的任务和设计标记的一个序列提出属性抽取问题。另外,我们建议一由簇的途径根据他们的语义类似归因的委员会(加拿大广播公司) 聚类。真实世界数据集上的试验性的结果证明建议途径是有效的。Qingliang MIAO Qiudan LI Daniel ZENG Yao MENG Shu ZHANG Hao YU 2014Frontiers of Computer Science2014,8,2:1
6The De- sign of Four-bar Linkage of Large Inclined Angle Hydraulic Sup- port显示文摘Xin Zhang Qingliang Zeng Jianwu Zhang Hanzheng Dai 2009Engineering Computation2009,,5:1
7Damage evolution of PμLSE additive-manufactured micro-lattice metastructures: Synchrotron radiation 3D tomography image-based analysis显示文摘The manufacturing of additives with projection micro litho stereo exposure(PμLSE)has provided an opportunity for the fabrication of metastructures with complex microstructures at micro-nano resolutions.However,the performance evaluation of as-fabricated metastructures is challenging.The benefit of synchrotron radiation-based 3 D imaging techniques and advanced image processing methods makes it is feasible to study fabrication defects and damage processes of micro-nanoscale bodycentered cubic(BCC)lattices manufactured with PμLSE.First,synchrotron radiation technology is used to capture the structural features inside the micro-lattice samples.Subsequently,several types of statistical defects-based image finite element models are adopted to analyze the failure process of the structure under compression loading.Finally,comparisons between in situ experiments and numerical simulation results are performed for verification.The method of the combined non-destructive testing of synchrotron radiation and image finite element technology provides a robust technique for evaluating the performances of additive-manufactured micro-lattice with complex microstructures.QingLiang Zeng WenWang Wu WenXia Hu Li Xi Ran Tao DaiNing Fang 2020Science China(Physics,Mechanics & Astronomy)2020,63,10:1
8Finite Element Stress Analysis on Structure of Hydraulic Support 显示文摘Cao Lianmin Zeng Qingliang Xiao Xingyuan 2011Advanced Materials Research2011,321,:1
9Finite Element Stress Analysis on Structure of Hydraulic Support 显示文摘Cao Lianmin Zeng Qingliang Xiao Xingyuan 2011Advanced Materials Research2011,321,:1
10Research of equipment selection and matching expert system in fully mechanized caving face based on ontology显示文摘Liu Zhihai Zeng Qingliang Wang Chenglong 0,,:1
11Intelligent Multilevel Knowledge Acquisition System for Product Design and Its Implementation显示文摘The characteristics of design process, design object and domain knowledge of complex product are analyzed. A kind of knowledge representation schema based on integrated generalized rule is stated. An AND-OR tree based model of concept for domain knowledge is set up. The strategy of multilevel domain knowledge acquisition based on the model is presented. The intelligent multilevel knowledge acquisition system (IMKAS) for product design is developed, and it is applied in the intelligent decision support system of concept design of complex product.钟佩思 Xu Wensheng Zeng Qingliang Xiong Guangleng GAO Guoan 2001High Technology Letters2001,7,1:1
12The structural optimization of roadheader conical picks based on fatigue life显示文摘Conical picks are the key cutting components used on roadheaders,and they are replaced frequently because of the bad working conditions.Picks did not meet the fatigue life when they were damaged by abrasion,so the pick fatigue life and strength are excessive.In the paper,in order to reduce the abrasion and save the materials,structure optimization was carried out.For static analysis and fatigue life prediction,the simulation program was proposed based on mathematical models to obtain the cutting resistance.Furthermore,the finite element models for static analysis and fatigue life analysis were proposed.The results indicated that fatigue life damage and strength failure of the cutting pick would never happen.Subsequently,the initial optimization model and the finite element model of picks were developed.According to the optimized results,a new type of pick was developed based on the working and installing conditions of the traditional pick.Finally,the previous analysis methods used for traditional methods were carried out again for the new type picks.The results show that new type of pick can satisfy the strength and fatigue life requirements.Zhenguo Lu Lirong Wan Qingliang Zeng Xin Zhang Kuidong Gao 2018International Journal of Modeling, Simulation, and Scientific Computing2018,9,2:0
13Finite element modeling and analysis of planetary gear transmission based on transient meshing properties显示文摘Planetary gear trains are widely applied in various transmission units.Whether strengths of all gears are accurately calculated or not can affect reliability of the entire system significantly.Strength calculation method for planetary gear trains usually follows the method for cylindrical gears,in which the worst meshing positions for both contact stress and bending stress cannot be determined precisely,and calculation results tend to be conservative.To overcome these shortcomings,a kinematics analysis for a planetary gear train is firstly performed,in which the influence of relative speed is investigated.Then the finite element strength analysis of a planetary gear train based on its transient meshing properties is carried out in ANSYS.Time–history curves of contact and bending stresses of sun gear,planetary gears and ring gear are respectively obtained.Also the accurate moment and its corresponding position of the maximum stress are precisely determined.Finally,calculation results of finite element method(FEM)and traditional method are compared in order to verify the effectiveness.Simulation and comparison show the stability of the proposed method in this paper.Researches in this paper establish the foundations for fatigue analysis and optimization for a planetary gear train.Qingliang Zeng Shoubo Jiang Lirong Wan Xueyi Li 2015International Journal of Modeling, Simulation, and Scientific Computing2015,6,3:0
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