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| 1 | General Energy Decay of Solutions for a Wave Equation with Nonlocal Damping and Nonlinear Boundary Damping显示文摘In this paper,we consider a nonlinear wave equation with nonlocal damping and nonlinear boundary damping.We prove a general energy decay property for solutions in terms of coefficient of the frictional boundary damping by using of the multiplier technique from the idea of Martinez[1],Our result extends and improves the result in the literature such as the work by Louredo,Ferreira de Araujo and Mi-randain[2]in which only exponential energy decay is considered.Furthermore,we get also the energy decay for the equation with nonlocal damping only but without nonlinear boundary damping. | LI Donghao ZHANG Hongwei HU Qingying | 2019 | Journal of Partial Differential Equations2019，32，4： | 4 |
| 2 | Preparation and Microstructure of ZrO_2-MoSi_2 Composite Powder and Compound Coating显示文摘In order to improve the lifetime of continuous casting,ZrO_2-MoSi_2 composite powder used for plasmaspraying was prepared via spray drying and vacuum sintering.The microstructure and characteristics of the powder were investigated by particle size analysis,scanning electron microscopy and X-ray diffraction,respectively.The results show that the average viscosity and settlement rate are 60.43 mPas and 1.86%,respectively,when adding ammonium polyacrylate as a dispersant and polyvinyl alcohol as a binder.The powder obtained at the solid content of 70 wt.%,the dispersant amount of 1wt.%,the binder of 10 wt.%,and the sintering temperature of 1200 'C has the spherical agglomerate and a moderate size,which can be melted on the composite coating surface with a good compactness via plasma-spraying. | ZHU Langtao ZHOU Rongping YANG Jun ZHANG Qingying | 2015 | Journal of the Chinese Ceramic Society2015，，3： | 2 |
| 3 | Exponential Decay of Energy for a Logarithmic Wave Equation显示文摘 | ZHANG Hongwei LIU Gongwei HU Qingying | 2015 | Journal of Partial Differential Equations2015，28，3： | 2 |
| 4 | BLOW-UP OF SOLUTIONS TO ELLIPTIC EQUATIONS WITH SEMILINEAR DYNAMICAL BOUNDARY CONDITIONS OF HYPERBOLIC TYPE显示文摘In this paper,we present some sufficient conditions for blow-up of soluti- ons to elliptic equations under semilinear dynamical boundary conditions of hyperbolic type. | Hu Qingying Zhang Hongwei | 2007 | Annals of Differential Equations2007，23，4： | 2 |
| 5 | Simultaneous determination and pharmacokinetic studies of dihydromyricetin and myricetin in rat plasma by HPLC-DAD after oral administration of Ampelopsis grossedentata decoction显示文摘 | ZHANG Yansong ZHANG Qingying LI Liying | 2007 | Journal of Chromatography B2007，860，： | 1 |
| 6 | ENERGY DECAY ESTIMATES FOR AN EULER-BERNOULLI BEAM WITH A TIP MASS显示文摘In this paper,we study the energy decay estimates for an Euler-Bernoulli beam with a tip mass,which is clamped at one end and attached a tip mass to the free end. | Qingying Hu,Chengke Zhu (Dept. of Math.,Henan University of Technology,Zhengzhou 450001) Xiaozhong Zhang (College of Math. and Information Sci.,Henan Polytechnic University,Jiaozuo 454000,Henan) | 2009 | Annals of Differential Equations2009，25，2： | 1 |
| 7 | Chemical analysis of the Chinese herbal medicine Gan-Cao (licorice)显示文摘 | ZHANG Qingying YE Min | | 0，，11： | 1 |
| 8 | Highly effective hybrid catalyst for the direct synthesis of dimethyl ether from syngas with magnesium oxide-modified HZSM-5 as a dehydration component显示文摘 | Dongsen Mao Weimin Yang Jianchao Xia Bin Zhang Qingying Song Qingling Chen | 2004 | Journal of Catalysis2004，，1： | 1 |
| 9 | Cloning and characterization of a blood coagulation factor Ⅸ-binding protein from the venom of Trimeresurus stejnegeri显示文摘 | Lee Wenhui Zhuang Qingying Zhang Yun | 2003 | Toxicon2003，41，2： | 1 |
| 10 | A new interpretation of temper embrittlement dynamics by non-equilibrium segregation of phosphor in steels显示文摘 | Zhang Zaoli Xu Tingdong Lin Qingying Yu Zongsen | 2001 | Journal of Materials Science2001，，8： | 1 |
| 11 | Medium optimization for 5'- phosphodies-terase production from penicillium citrinum using response surface methodology 显示文摘 | Lu Eshi Guo Qingying Zhang Xiaoying | 2007 | Biotechnol2007，45，2： | 1 |
| 12 | Hypnotic effect of jujubosides from Semen Ziziphi Spinosae显示文摘 | CAO Jiexin ZHANG Qingying CUI Suying | 2010 | Journal of Ethnopharmacology2010，130，1： | 1 |
| 13 | Research on shipbuilding production logistics system combining MRP-Ⅱ with JIT 显示文摘 | ZHANG Qingying YUE Weihong | 2007 | Journal of Southeast University ( English Edition)2007，，123： | 1 |
| 14 | New developments in fiber hemp ( Cannabis sativa L.) breeding显示文摘 | Elma M.J. Salentijn Qingying Zhang Stefano Amaducci Ming Yang Luisa M. Trindade | 2014 | Industrial Crops & Products2014，，： | 1 |
| 15 | Segregation and Action of Lanthanum in Ni-Cr-Co-W Alloys显示文摘ThepropertiesofhotdeformationandoxidationresistanceofNiCoCrWaloyareimprovedbyadditionofrareearthelements[1~4]butthemecha... | Lin Qingying (Central Iron & Steel Research Institute, Beijing 100081, China)Zhang Xiulin (Applied Science School, University of Science and Technology Beijing, Beijing 100083, China) | 1999 | Journal of Rare Earths1999，17，2： | 1 |
| 16 | Chemical analysis of the Chinese herbal medicine Gan-Cao (licorice)显示文摘 | Qingying Zhang Min Ye | 2008 | Journal of Chromatography A2008，，11： | 1 |
| 17 | A BLOW-UP RESULT FOR A CLASS DOUBLY NONLINEAR PARABOLIC EQUATIONS WITH VARIABLE-EXPONENT NONLINEARITIES显示文摘This paper deals with the following doubly nonlinear parabolic equations(u + |u|r(x)-2u)t-div(|?u|m(x)-2?u) = |u|p(x)-2u, where the exponents of nonlinearity r(x), m(x) and p(x) are given functions. Under some appropriate assumptions on the exponents of nonlinearity, and with certain initial data, a blow-up result is established with positive initial energy. | Qingying Hu Donghao Li Hongwei Zhang | 2019 | Annals of Applied Mathematics2019，35，2： | 1 |
| 18 | Chemical analysis of the Chinese herbal medicine Gan-Cao (licorice) 显示文摘 | Zhang Qingying Ye Min | 2009 | J Chromatogr A2009，1216，11： | 1 |
| 19 | Cytotoxic polyacetylenes isolated from the roots and rhizomes of Notopterygium incisum显示文摘Phytochemical investigation on the roots and rhizomes of Notopterygium incisum led to the isolation of a new polyacetylene, notopolyenol A (1), along with thirteen known analogues (2-14). Their structures were elucidated by extensive analyses of NMR and HRMS data, and the absolute configuration of 1 was unambiguously determined as 3 R by comparison of its retention time and ECD curve with those of synthetic enantiomers (-)-1 and (+)-1, whose absolute configurations were established by using the modified Mosher's method. Subsequent activity screening revealed that (3 S)-1 exhibited the most significant cytotoxicity against MCF-7, H1299, and HepG2 cancer cells with IC_(50) values of 1.3 μmol/L,0.6μmol/L and 1.4μmol/L, respectively. | Xikang Zheng Xiaoqing Zheng Chen Zhang Qingying Zhang Yong Jiang Pengfei Tu | 2019 | Chinese Chemical Letters2019，30，2： | 0 |
| 20 | Research on the Computer Supported Cooperative Shipbuilding System Based on PDM显示文摘Shipbuilding is becoming more complex and requires many different enterprises and plants to work cooperatively to strive for the maximum profit.Supported by the computer technology,information technology,and internet technology etc., CSCW (Computer Supported Cooperative Work) plays a very crucial role in the multi-team,multi-subject,multi-layer field. According to shipbuilding characters and market requirements,the computer supported cooperative shipbuilding technology is re- searched actually.Key technologies to realize it are analyzed,and construction of the computer supported cooperative manufactur- ing environment is deeply discussed.On the base of them,scheme of the computer supported cooperative shipbuilding system based on PDM (Product Data Management) is put forward,which is useful to improve and develop the shipbuilding industry. | YUE Weihong~1 WANG Chengfang~1 ZHANG Qingying~2 1.School of Transportation,Wuhan University of Technology,Wuhan 430063,China 2.School of Logistics Engineering,Wuhan University of Technology,Wuhan 430063,China | 2006 | 武汉理工大学学报2006，28，S2： | 0 |
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