|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | COVID-19 Outbreak Caused by Contaminated Packaging of Imported Cold-Chain Products—Liaoning Province,China,July 2020显示文摘Summary What is known about this topic?Few major outbreaks of coronavirus disease 2019(COVID-19)have occurred in China after major nonpharmaceutical interventions and vaccines have been deployed and implemented.However,sporadic outbreaks that had high possibility to be linked to cold chain products were reported in several cities of China..What is added by this report?In July 2020,a COVID-19 outbreak occurred in Dalian,China.The investigations of this outbreak strongly suggested that the infection source was from COVID-19 virus-contaminated packaging of frozen seafood during inbound unloading personnel contact.What are the implications for public health practice?Virus contaminated paper surfaces could maintain infectivity for at least 17–24 days at-25℃.Exposure to COVID-19 virus-contaminated surfaces is a potential route for introducing the virus to a susceptible population.Countries with no domestic transmission of COVID-19 should consider introducing prevention strategies for both inbound travellers and imported goods.Several measures to prevent the introduction of the virus via cold-chain goods can be implemented. | Huilai Ma1 Jianqun Zhang Ji Wang Ying Qin Cao Chen Yang Song Liang Wang Jun Meng Lingling Mao Fengqin Li Ning Li Jian Cai Yong Zhang Dayan Wang Yunting Xia Hong Wang Shaofeng Jiang Xiang Zhao Peihua Niu Wenjie Tan Tao Ma Yecheng Yao Naiying Mao Zhen Zhu Tianjiao Ji Qian Yang Baoying Huang Li Zhao Jianxing Yu Li Bai Shuangli Zhu Dongyan Wang Yan Zhang Yingwei Sun Mingchun Luan Yanhai Wang Haibo Sun Shihong Yang Zhijian Bo Xiang Ren Zhongjie Li George Fu Gao Wei Yao Wenqing Yao Zijian Feng Wenbo Xu | 2021 | China CDC weekly2021，3，21： | 16 |
| 2 | DMM:A dynamic memory mapping model for virtual machines显示文摘Memory virtualization is an important part in the design of virtual machine monitors(VMM).In this paper,we proposed dynamic memory mapping(DMM) model,a mechanism that allows the VMM to change the mapping between a virtual machine's physical memory and the underlying hardware resource while the virtual machine is running.By utilizing DMM,the VMM can implement many novel memory management policies,such as Demand Paging,Swapping,Ballooning,Memory Sharing and Copy-On-Write,while preserving compatibility with various architectures.The modular and hierarchical property of the DMM model efficiently incorporates the high-level policies and the low-level implementations,leading to a feature-adjustable VMM design.We presented the principle of the DMM model,and explained the procedures of various memory management policies under this model.Also,we implement the DMM model in KVM,an open source VMM.Our evaluation shows that the DMM model is efficient enough to provide the benefits of dynamic memory resource management with little performance impact. | CHEN HaoGang WANG XiaoLin WANG ZhenLin ZHANG BinBin LUO YingWei LI XiaoMing | 2010 | Science China(Information Sciences)2010，53，6： | 11 |
| 3 | In Situ Growth Process of Mg-Al Hydrotalcite Conversion Film on AZ31 Mg Alloy显示文摘In this study,an environment-friendly hydrotalcite film has been deposited on AZ31 Mg alloy by a twostep technique.To improve conversion film technique and control film properties,batch studies have been carried out to address various process parameters such as immersion time,pH value,and temperature of the treatment solution.The morphologies and chemical composition were characterized by scanning electron microscopy(SEM) and energy dispersive X-ray spectroscopy(EDS).The corrosion resistance of the samples with the various final films was then further compared by polarization curves.It can be concluded from the results that,at low value of pH,temperature,or long deposition time,the precursor film is mainly composed of a cracked layer.The transformation of hydrotalcite film is largely influenced by the pH value.There are optimum values of pH,temperature of the coating bath and immersion time for the film formation process to achieve the best quality and corrosion resistance of the hydrotalcite film.The optimum process is as follows:the sample is first immersed in the pretreatment solution with a pH value of about 8 at a temperature of 60 ℃ for 30 min to form a precursor film and then this precursor film is immersed into the post treatment solution with a pH of 10.5 at 80 ℃ for 1.5 h to obtain the Mg—Al hydrotalcite conversion film. | Jun Chen Yingwei Song Dayong Shan En-Hou Han | 2015 | Journal of Materials Science & Technology2015，31，4： | 10 |
| 4 | Jackson’s theorem in Q_p spaces显示文摘A Jackson type inequality in Q p spaces is established, i.e., for any f (z) = Σ∞ j=0 ajzj ∈ Qp , 0≤p < ∞, a > 1, and k-1 ∈ N,where ω(1/k, f, Q p ) is the modulus of continuity in Q p spaces and C(a) is an absolute constant depending only on the parameter a. | CHEN YingWei 1 & REN GuangBin 1, 2, 1 Department of Mathematics, University of Science and Technology of China, Hefei 230026, China 2 Department of Mathematics, University of Aveiro, P-3810-193 Aveiro, Portugal | 2010 | Science China Mathematics2010，53，2： | 6 |
| 5 | Changes in energy metabolism in the quadriceps femoris after a single bout of acute exhaustive swimming in rats: a 31p-magnetic resonance spectroscopy study显示文摘 | Sun Yingwei Pan Shinong Chen Zhian Zhao Heng Ma Ying Zheng Liqiang Li Qi Deng Chunbo Fu Xihu Lu Zaiming Guo Qiyong | 2014 | Chinese Medical Journal2014，，5： | 5 |
| 6 | RATIONAL SPECTRAL COLLOCATION METHOD FOR A COUPLED SYSTEM OF SINGULARLY PERTURBED BOUNDARY VALUE PROBLEMS显示文摘为不可思议地使不安的线性方程的 a coupled 系统的一个新奇搭配方法被介绍。这个方法基于合理光谱在有 sinh 的 barycentric 形式的搭配方法变换。由 sinh 变换,原来的 Chebyshev 点被印射进在答案的单个点附近聚类的转变的。从关于奇特答案的 asymptotic 分析的结果被采用在这 sinh 变换决定参数。数字实验被执行表明我们的方法的高精确性和效率。[从作者抽象] | Suqin Chen Yingwei Wang Xionghua Wu | 2011 | Journal of Computational Mathematics2011，29，4： | 4 |
| 7 | Dynamic memory paravirtualization transparent to guest OS显示文摘This paper introduces dynamic paravirtualization, which imitates paravirtualization and aims at reducing VM exits of full virtualization with hardware support. In dynamic paravirtualization, VMM (virtual machine monitor) dynamically monitors and replaces the hot instructions, which cause most VM exits. It is transparent to the guest OS such that the legacy OSes can benefit from this optimization. Our study focuses on reducing the overhead of memory virtualization-dynamic memory paravirtualization (DMP). We implant a new memory management mechanism in VMM such that all user-mode page faults can be handled by the guest OS directly without VM exits. We implement a prototype of dynamic memory paravirtulization based on a version of KVM using Intel VT. Our experimental results show that our technique essentially eliminates the overhead of VM exits caused by page faults. Dynamic memory paravirtualization can achieve the effectiveness of paravirtualization without changing the source code of guest OS. | WANG XiaoLin SUN YiFeng LUO YingWei WANG ZhenLin LI Yu ZHANG BinBin CHEN HaoGang LI XiaoMing | 2010 | Science China(Information Sciences)2010，53，1： | 4 |
| 8 | miR-200b is involved in intestinal fibrosis of Crohn’s disease显示文摘 | Yingwei Chen Wensong Ge Leiming Xu Chunying Qu Mingjie Zhu Wenzhu Zhang Yongtao Xiao | 2012 | International Journal of Molecular Medicine2012，，4： | 2 |
| 9 | Biodegradable behaviors of AZ31 magnesium alloy in simulated body fluid显示文摘 | Yingwei Song Dayong Shan Rongshi Chen Fan Zhang En-Hou Han | 2008 | Materials Science & Engineering C2008，，3： | 2 |
| 10 | Biodegradable behaviors of AZ31 magnesium alloy in simulated body fluid显示文摘 | Yingwei Song Dayong Shan Rongshi Chen Fan Zhang En-Hou Han | 2008 | Materials Science & Engineering C2008，，3： | 2 |
| 11 | A novel recombinant DNA vaccine encodingMycobacterium tuberculosis ESAT-6 and FL protects againstMycobacterium tuberculosis challenge in mice显示文摘Mycobacterium tuberculosis 6-kDa early secretory antigenic target(ESAT-6)is a dominant target antigen for cell-mediated immunity in the early phase of tuberculosis.The fms-like tyrosine kinase 3 ligand(FL)that induces potent immune response has been used as an adjuvant in vaccine development.In this study,a new recombinant plasmid(pIRES-epitope-peptides-FL)encoding three T cell epitopes of ESAT-6 and FL was constructed,and the immunogenicity of the DNA vaccine was assessed in C57BL/6 mice immunized with the plasmid DNA vaccine.Additionally,a strategy of intramuscular injection with the DNA vaccine(prime)and intranasal administration of the epitope peptides(boost)was employed to induce higher immune reaction of the mice.The results showed that mice vaccinated with the recombinant plasmid DNA vaccine and boosted with the peptides not only increased the levels of Th1 cytokines(IFN-γand IL-12),the number of IFN-γ+T cells and activities of cytotoxic T lymphocytes as well as IgG,but also enhanced protection against Mycobacterium tuberculosis challenge.In conclusion,these data indicate that the novel recombinant pIRES-epitope-peptides-FL plasmid is a useful DNA vaccine for preventing Mycobacterium tuberculosis infection. | Qingtao Jiang Jing Zhang Xia Chen Mei Xia Yanlai Lu Wen Qiu Ganzhu Feng Dan Zhao Yan Li Fengxia He Guangyong Peng Yingwei Wang | 2013 | The Journal of Biomedical Research2013，27，5： | 2 |
| 12 | Stability of Nonlinear Networked Control System with?Uncertainties显示文摘 | Yingwei Zhang Xue Chen Qingfeng Meng | 2010 | Circuits Systems and Signal Processing2010，，6： | 1 |
| 13 | Encapsulation of ultrafine Pd nanoparticles within the shallow layers of UiO-67 for highly efficient hydrogenation reactions显示文摘Metal-organic frameworks(MOFs)have been used to encapsulate active metal nanoparticles(MNPs)to fabricate MNPs@MOFs composites with high catalytic efficiencies.However,the diffusion of reactants and the accessibility of MNPs located in the center of MOFs may be hindered due to the inherent microporous structures of MOFs,which would affect the catalytic activities of MNPs.Herein,we report a solvent assisted ligand exchange-hydrogen reduction(SALE-HR)strategy to selectively encapsulate ultrafine MNPs(Pd or Pt)within the shallow layers of a MOF,i.e.,UiO-67.The particle sizes of the encapsulated MNPs and the thickness of the MNPs-embedded layers can be adjusted easily by controlling the SALE conditions(e.g.time and temperature).Crucially,the LE-Pd@UiO-80-0.5 composite with the thinnest Pd-embedded layers displays remarkable catalytic efficiency with a high turnover frequency(TOF)value of 600 h^-1towards hydrogenation of nitrobenzene under 1 atm H_2at room temperature.The results indicate that the catalytic efficiency and the utilization of MNPs can be enhanced by compactly encapsulating MNPs within the shallow layers of MOFs as close to their outer surfaces as possible,owing to the short masstransfer distance and enhanced accessibility of overall MNPs. | Zhiming Cui Ting Fan Liyu Chen Ruiqi Fang Chuanmao Li Yingwei Li | 2021 | Science China Chemistry2021，64，1： | 1 |
| 14 | Corro-sion characterization of Mg-8Li alloy in NaCl solution显示文摘 | Song Yingwei Shan Dayong Chen Rongshi | 2009 | Corrosion Science2009，51，5： | 1 |
| 15 | Heavy metal contamination in soil alongside mountain railway in Sichuan,China显示文摘 | Liu Hao Chen Liping Ai Yingwei | 2009 | Environmental Monitoring and Assessment2009，152，1234： | 1 |
| 16 | Regulated complexity scalable MPEG-2 video decoding for media processors显示文摘 | Chen Yingwei | 2002 | Circuits and Systems for Video Technology IEEE Transactions2002，12，8： | 1 |
| 17 | The MPEG-4 fine-grained scalable video coding method for multimedia streaming over IP显示文摘 | Radha H M van der Schaar M Chen Yingwei | 2001 | IEEE Transactions on Multimedia2001，3，1： | 1 |
| 18 | An environmentally friendly molybdate/phosphate black film on Mg–Zn–Y–Zr alloy显示文摘 | Yingwei Song Dayong Shan Rongshi Chen En-Hou Han | 2010 | Surface & Coatings Technology2010，，20： | 1 |
| 19 | Three-dimensional subband coding of video using the zero-tree method 显示文摘 | Chen Yingwei Pearlman William A | 1996 | Proceedings of SPIE(S0277-786X)1996，2727，： | 1 |
| 20 | Heavy metal contami- nation in soil alongside mountain railway in Sichuan, China显示文摘 | Liu Hao Chen Liping Ai Yingwei | 2009 | Environmental Monitoring and Assessment2009，152，14： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员