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98篇 您的检索式:作者名="Qiping"
    题名 作者 年代 出处 被引量
1Study on the Development Mode of National Power Grid of China显示文摘LIU Zhenya ZHANG Qiping 2013中国电机工程学报2013,33,7:29
2YAGG:Ce transparent ceramics with high luminous efficiency for solid-state lighting application显示文摘A series of Y2.985Al5–xGaxO12:0.015Ce(YAGG:Ce,x=0,1,2,3,4,5)transparent ceramics were prepared via a solid-state reaction method.Two-step sintering technique was proved to be an effective approach to prepare functional ceramics with high Ga concentration,and Y3Ga5O12(YGG)transparent ceramic was successfully prepared for the first time.According to the variation of Al/Ga ratio,regulation of band structure and luminescence properties of YAGG:Ce transparent ceramics were effectively investigated.When Ga substitutes Al sites,the tetrahedral site is more favorable compared to the octahedral site for Ga to occupy according to the first-principle calculation.A continuous blue shift of the emission from 565 to 515 nm was achieved as Ga was gradually introduced into Y3Al5O12:Ce matrix.High quality green light was obtained by coupling the YAGG:Ce ceramics with commercial blue InGaN chips.Transparent luminescence ceramics accomplished in this work can be quite prospective for high power LED application.Hui HUA Shaowei FENG Zhongyu OUYANG Hezhu SHAO Haiming QIN Hui DING Qiping DU Zhijun ZHANG Jun JIANG Haochuan JIANG 2019Journal of Advanced Ceramics2019,8,3:13
3An improved dynamic model for a silicone material beam with large deformation显示文摘Dynamic modeling for incompressible hyperelastic materials with large deformation is an important issue in biomimetic applications. The previously proposed lower-order fully parameterized absolute nodal coordinate formulation(ANCF) beam element employs cubic interpolation in the longitudinal direction and linear interpolation in the transverse direction, whereas it cannot accurately describe the large bending deformation. On this account, a novel modeling method for studying the dynamic behavior of nonlinear materials is proposed in this paper. In this formulation, a higher-order beam element characterized by quadratic interpolation in the transverse directions is used in this investigation. Based on the Yeoh model and volumetric energy penalty function, the nonlinear elastic force matrices are derived within the ANCF framework. The feasibility and availability of the Yeoh model are verified through static experiment of nonlinear incompressible materials. Furthermore,dynamic simulation of a silicone cantilever beam under the gravity force is implemented to validate the superiority of the higher-order beam element. The simulation results obtained based on the Yeoh model by employing three different ANCF beam elements are compared with the result achieved from a commercial finite element package as the reference result. It is found that the results acquired utilizing a higher-order beam element are in good agreement with the reference results,while the results obtained using a lower-order beam element are different from the reference results. In addition, the stiffening problem caused by volumetric locking can be resolved effectively by applying a higher-order beam element. It is concluded that the proposed higher-order beam element formulation has satisfying accuracy in simulating dynamic motion process of the silicone beam.Qiping Xu Jinyang Liu 2018Acta Mechanica Sinica2018,34,4:7
4计算机辅助联合吲哚菁绿分子荧光影像技术在肝脏肿瘤诊断和手术导航中的应用指南(2019版)(英文)显示文摘计算机辅助联合吲哚菁绿分子荧光影像技术可以从三维的形态解剖和细胞功能水平进行术前规划和术中侦测,从而导航肝癌解剖性、功能性、根治性的肝切除术,临床应用证明其有重要的诊疗价值,此项技术现已在全国得到了广泛推广和应用。为规范计算机辅助联合吲哚菁绿分子荧光影像技术在肝脏肿瘤精准诊疗中的应用,本指南在以下几个方面进行了研究:(1)三维可视化技术应用流程;(2)ICG分子荧光成像的机制及应用流程;(3)三维可视化和虚拟现实技术的临床应用;(4)ICG分子荧光影像技术的临床应用。ICG分子荧光成像技术能从分子、细胞水平层面实现肿瘤边界界定、肝段和肝叶切除切线的确定;微小病灶或转移灶的侦测;术中根据肝脏肿瘤的荧光信号特点,结合术中快速冰冻病理学检查,可初步判定肝脏占位性病变的分化程度;肝切除后对肝断面进行残留肿瘤病灶和胆漏的检测。计算机辅助联合ICG分子荧光影像技术在肝脏肿瘤诊断和手术导航中的应用,为肝脏肿瘤的外科治疗提供了一种新的数字智能化外科诊疗技术,该项技术亦将不断改进和完善,为肝脏肿瘤的精准诊疗展现出良好的应用前景。 方驰华 LU Qiping LAU Wanyee 2019南方医科大学学报2019,39,10:7
5Mechanical properties and expansion coefficient of Mo-Cu composites with different Ni contents显示文摘Mo-Cu composites were fabricated by powder metallurgy with addition of various Ni contents.The effect of Ni contents on mechanical and thermal properties of Mo-Cu composites was investigated.The results show that mechanical and thermal properties of Mo-Cu composites are greatly affected by the addition of Ni contents.The composite powders with Ni addition exhibits high sinterability.The sintering temperature is greatly decreased and the comprehensive properties of Mo-Cu composites are obviously improved.Mo-Cu composites with a content of 1.5 wt.% Ni have relative density 99.2%,bending strength 1057.9 MPa,hardness 72.5 HRA,electronic resistivity 1.28×10^(-7)Ω·m^(-1),thermal conductivity 139 W.m^(-1).K^(-1),and lower coefficient of thermal expansion 7.4×10^(-6)K^(-1).Mo-Cu composites have homogeneous and fine microstructure.The fracture mechanism is ductile fracture.Guo, Shibo Kang, Qiping Cai, Chunbo Qu, Xuanhui 2012Rare Metals2012,31,4:7
6Energy conservation and emissions reduction strategies in foundry industry显示文摘Current energy conservation and emissions reduction strategies in iron and steel industry were reviewed. Since foundry industry is one of the major source of energy consumption and pollution emission (especially CO 2 ), issues concerning energy-saving and emission-reduction have been raised by governments and the industry. Specialists from around the world carried out multidimensional analyses and evaluation on the potentials in energy conservation and emissions reduction in iron and steel industry, and proposed various kinds of analyzing models. The primary measures mainly focus on the targeted policies formulation and also on clean and highefficient technologies development. The differences and similarities in energy conservation and emission reduction in foundry industry between China and other countries were discussed, while, the future development trend was also pointed out.Li Yuanyuan Chen Weiping Huang Dan Luo Jie Liu Zhe Chen Yongcheng Liu Qiping Su Shifang 2010China Foundry2010,7,4:4
7The maize late embryogenesis abundant protein Zm DHN13 positively regulates copper tolerance in transgenic yeast and tobacco显示文摘Late embryogenesis abundant (LEA) proteins accumulate in the late stage of plant seed development, and are upregulated in most plants during drought, cold, heat, or salinity stress. LEA proteins can be classified by amino-acid sequence into seven groups. Dehydrins belong to LEA protein group Ⅱ. In previous studies, the maize KS type dehydrin ZmDHN13 increased the tolerance of transgenic tobacco to oxidative stress. In the present study, ZmDHN13 was identified under copper stress conditions, and the protein was then characterized using transgenic yeast and tobacco plants to investigate its functions. ZmDHN13 bound Cu2+. Its overexpression in transgenic tobacco conferred tolerance to copper stress by binding metals and reducing the accumulation of reactive oxygen species (ROS). Three conserved domains displayed a cooperative effect under copper stress conditions.Yang Liu Daxing Li Qiping Song Tianpeng Zhang Dequan Li Xinghong Yang 2019The Crop Journal2019,7,3:3
8Fabrication of Ti_3AlC_2 ceramic material by mechanical alloying显示文摘Ti3AlC2 has the properties of ceramics and metals.These excellent properties indicate that Ti3AlC2 is a very promising material to extensive applications.Ti3AlC2 ceramic material was prepared by mechanical alloying.The effects of milling time and sintering temperature on the fracture,microstructure and mechanical properties of Ti3AlC2 ceramic material were analyzed by laser particle analyzer,X-ray diffraction,and scanning electron microscopy.The experimental results showed that Ti3AlC2 had the best comprehensive properties after the composite powder was milled for 3 h and sintered at 1630℃ for 2 h.The relative density,bending strength,and hardness of the sample reached 92.23%,345.2 MPa,and HRA 34.1,respectively.The fracture surface indicated that the fracture of the material belonged to ductile rapture.GUO Shibo KANG Qiping LIU Jun QU Xuanhui 2010Rare Metals2010,29,4:3
9Col10a1 gene expression and chondrocyte hypertrophy during skeletal development and disease显示文摘类型 X 骨胶原基因, COL10A1,被 hypertrophic chondrocytes 明确地在 endochondral 期间表示骨化。Endochondral 骨化是包含软骨中介并且在 skeletogenesis 期间在脊椎动物导致大多数骨骼的形成的一个协调得好的过程。Chondrocyte 肥大是连接骨头和软骨开发的 endochondral 骨化的一个批评阶段。与 chondrocyte 肥大给它的特定的协会,在 endochondral 的类型 X 骨胶原戏必需品角色骨化。当变化和人的 COL10A1 的反常表示引起反常 chondrocyte 在许多骨胳的混乱被看见了的肥大时,有变异的类型 X 骨胶原的转基因的鼠标开发显示有缺点的 endochondral 骨化的可变骨骼造血的畸形,这以前被显示出当变化和人的 COL10A1 的反常表示引起反常 chondrocyte 在许多骨胳的混乱被看见了的肥大时。在这评论,我们与显示出生长板缺点的 COL10A1 基因变化总结了骨胳的 chondrodysplasia。我们也考察了相关的最近的研究有骨关节炎的类型 X 骨胶原基因表示和 chondrocyte 肥大。由于它的重要临床的关联,类型 X 骨胶原基因规定广泛地在过去的二十年被学习了。这里,我们集中于描绘 cis 提高元素和他们有约束力的因素的最近的进步一起授与 hypertrophic chondrocyte 特定的鼠科的类型 X 骨胶原基因(Col10a1 ) 表示。基于文学评论和我们的自己的研究,我们推测有多重因素,贡献 hypertrophic chondrocyte 特定的 Col10a1 表示。这些因素包括两 transactivators (例如 Runx2, MEF2C 等等) 并且抑压者(例如 AP1, NFATc1, Sox9 等等) ,当 Col10a1 表示的另外的余因子或 epigenetic 控制不能被排除时。Yaojuan LU Longwei QIAO Guanghua LEI Ranim R. MIRA Junxia GU Qiping ZHENG 2014Frontiers in Biology2014,9,3:2
10Using Network Embedding to Obtain a Richer and More Stable Network Layout for a Large Scale Bibliometric Network显示文摘Purpose: The goal of this study is to explore whether deep learning based embed ded models can provide a better visualization solution for large citation networks. De sign/methodology/approach: Our team compared the visualization approach borrowed from the deep learning community with the well-known bibliometric network visualization for large scale data. 47,294 highly cited papers were visualized by using three network embedding models plus the t-SNE dimensionality reduction technique. Besides, three base maps were created with the same dataset for evaluation purposes. All base maps used the classic Open Ord method with different edge cutting strategies and parameters. Findings: The network embedded maps with t-SNE preserve a very similar global structure to the full edges classic force-directed map, while the maps vary in local structure. Among them, the Node2Vec model has the best overall visualization performance, the local structure has been significantly improved and the maps' layout has very high stability.Research limitations: The computational and time costs of training are very high for network em bedded models to obtain high dimensional latent vector. Only one dimensionality reduction technique was tested. Practical implications: This paper demonstrates that the network embedding models are able to accurately reconstruct the large bibliometric network in the vector space. In the future, apart from network visualization, many classical vector-based machine learning algorithms can be applied to network representations for solving bibliomet ric analysis tasks. Originality/value: This paper provides the first systematic comparison of classical science mapping visualization with network embedding based visualization on a large scale dataset. We showed deep learning based network embedding model with t-SNE can provide a richer,more stable science map. We also designed a practical evaluation method to investigate and compare maps.Ting Chen Guopeng Li Qiping Deng Xiaomei Wang 2021Journal of Data and Information Science2021,6,1:2
11Sliding Mode Control of Hydraulic Pressure in Electro-Hydraulic Brake System Based on the Linearization of Higher-Order Model显示文摘The possibility to enhance the stability and robustness of electrohydraulic brake(EHB)systems is considered a subject of great importance in the automotive field.In such a context,the present study focuses on an actuator with a four-way sliding valve and a hydraulic cylinder.A 4-order nonlinear mathematical model is introduced accordingly.Through the linearization of the feedback law of the high order EHB model,a sliding mode control method is proposed for the hydraulic pressure.The hydraulic pressure tracking controls are simulated and analyzed by MATLAB/Simulink soft considering separately different conditions,i.e.,a sine wave,a square wave and a square wave with superimposed sine disturbance.The results show that the proposed strategy can track the target within 0.25 s,and the mean observed error is less than 1.2 bar.Moreover,with such a strategy,faster response and less overshoot are possible,which should be regarded as significant advantages.Qiping Chen Haoyu Sun Ning Wang Zhi Niu Rui Wan 2020Fluid Dynamics & Materials Processing2020,16,3:1
12The C_(6)D_(6)detector system on the Back-n beam line of CSNS显示文摘Introduction The neutron capture cross sections are very important in the field of nuclear device design and basic physics research.Hydrogen-free liquid scintillator such as C_(6)D_(6)detectors are widely used in the neutron capture cross-sectional measurements for the low neutron sensitivity and fast time response.The Back-n white neutron source at China Spallation Neutron Source is the first spallation white neutron source in China,and it is suitable for neutron capture cross-sectional measurement.Materials and methods A C_(6)D_(6)detector system was built in the Back-n experimental station.The pulse height weighting technique was used to determine the system’s detection efficiency.The response to gamma rays of the C_(6)D_(6)detector was measured,and the energy resolution function was determined.Monte Carlo simulation with Geant4 code was carried out to get the weighting function of this C_(6)D_(6)detector system.Additionally,the systematic uncertainty of the weighting function was also determined.Conclusion According to the experimental and simulation results,this C_(6)D_(6)detector system can be used to measure neutron capture cross section.Jie Ren Xichao Ruan Jie Bao Guangyuan Luan Wei Jiang Qi An Huaiyong Bai Ping Cao Qiping Chen Yonghao Chen Pinjing Cheng Zengqi Cui Ruirui Fan Changqing Feng Minhao Gu Fengqin Guo Changcai Han Zijie Han Guozhu He Yongcheng He Yuefeng He Hanxiong Huang Weiling Huang Xiru Huang Xiaolu Ji Xuyang Ji Haoyu Jiang Hantao Jing Ling Kang Mingtao Kang Bo Li Lun Li Qiang Li Xiao Li Yang Li Yang Li Rong Liu Shubin Liu Xingyan Liu Yinglin Ma Changjun Ning Binbin Qi Zhaohui Song Hong Sun Xiaoyang Sun Zhijia Sun Zhixin Tan Hongqing Tang Jingyu Tang Pengcheng Wang Qi Wang Taofeng Wang Yanfeng Wang Zhaohui Wang Zheng Wang Jie Wen Zhongwei Wen Qingbiao Wu Xiaoguang Wu Xuan Wu Likun Xie Yiwei Yang Han Yi Li Yu Tao Yu Yongji Yu Guohui Zhang Jing Zhang Linhao Zhang Liying Zhang Qingmin Zhang Qiwei Zhang Xianpeng Zhang Yuliang Zhang Zhiyong Zhang Yingtan Zhao Liang Zhou Zuying Zhou Danyang Zhu Kejun Zhu Peng Zhu 2019Radiation Detection Technology and Methods2019,3,3:1
13A review of studies on public-private partnership projects in the construction in- dustry 显示文摘Tang LiYanning Qiping Shen Eddie WL Cheng 2010International Journal of Project Management2010,,28:1
14Critical success factors for value management studies in construction 显示文摘Qiping Shen Guiwen Liu 2003Journal of Construction Engineering and Management2003,,5:1
15Using Data Mining Techniques to Support Value Management Workshops in Construction 显示文摘SHEN Qiping GUO Jianfeng 2008Singhua Science And Technology2008,13,02:1
16Individualized risk for statin-induced myopathy: current knowledge, emerging challenges and potential solutions显示文摘QiPing Feng Russell A Wilke Tesfaye M Baye 2012Pharmacogenomics2012,,5:1
17Non- destructively sensing pork's freshness indicator using near infrared multispectral imaging technique显示文摘Huang Qiping Chen Quansheng Li Huanhuan 2015Journal of Food Engineering2015,154,:1
18A Framework for Benchmarking the Value Management Process显示文摘Patrick Sik-wah Fong Qiping Shen Eddie WL Cheng 2001Benchmarking2001,8,4:1
19Building Information Modeling-based user activity simulation and evaluation method for improving designer–user communications显示文摘Weilin Shen Qiping Shen Quanbin Sun 2011Automation in Construction2011,,:1
20Stakeholder management studies in mega construction projects:A review and future directions显示文摘Ka Yan Mok Geoffrey Qiping Shen Jing Yang 2015International Journal of Project Management2015,33,44:1
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