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29篇 您的检索式:作者名="PENG YuXing"
    题名 作者 年代 出处 被引量
1Ce-doped LiNi_(1/3)Co_((1/3-x/3))Mn_(1/3)Ce_(x/3)O_2 cathode materials for use in lithium ion batteries显示文摘LiNi1/3Co1/3Mn1/3O2 and Ce-doped LiNi1/3Co1/3Mn1/3O2 cathode materials were synthesized by a co-precipitation method and solid phase synthesis and characterized using X-ray diffraction(XRD) and scanning electron microscopy(SEM).The results indicated that the resultant cathode materials with different Ce content all had a good layer structure and high crystallinity.Electrochemical performance testing of the cathode materials showed that the discharge capacity increased with increasing Ce content while the initial reversible capacity attenuation decreased with Ce doping.When the Ce content of the cathode materials is x=0.2,and the current charge and discharge rate is a constant 0.2 C,the discharge capacity maintained 91% of its initial capacity after cycling 50 times.ZHANG YingJie XIA ShuBiao ZHANG YanNan DONG Peng YAN Yuxing YANG RuiMing 2012Chinese Science Bulletin2012,57,32:8
2A scalable code dissemination protocol in heterogeneous wireless sensor networks显示文摘Code dissemination is currently a major research issue in wireless sensor networks (WSNs).Many studies focus on code dissemination in homogeneous WSNs,mainly using a broadcast approach to solve this problem;few studies on code dissemination in heterogeneous WSNs.Furthermore,broadcasting cannot readily be used to solve the heterogenous WSN code dissemination problem directly,which is where we have focused our attention.We transformed this problem into a minimum non-leaf nodes (MNN) Steiner tree problem.We designed a scalable multicast protocol,named Heterogeneous Sensor Networks Scalable Reprogramming Protocol (HSR) to solve the MNN problem.HSR can build different multicast trees according to different nodes or code modules to disseminate different codes to them.HSR is able to approximate the MNN tree problem to a ratio of ln|R| (R is the set of all destinations) best known lowest bound.Therefore,the communication cost is significantly decreased and the total energy required by WSNs is reduced.We further designed two scalable schemes,special routing log and hops-restricted local broadcast,which compress the multicast tree information and deliver the multicast messages without loss.We also designed a 3-stage pipeline to speed up the transmission of packets,which alleviated interference and hidden terminal issues.We evaluated our design through comprehensive simulations and prototype implementations on Mica2 motes.Experimental results demonstrate that HSR outperforms previous protocols including the most recent studies on Sprinkler and uCast.PENG ShaoLiang LI ShanShan LIAO XiangKe PENG YuXing XIAO Nong 2012Science China(Information Sciences)2012,55,6:5
3Single-atom cobalt nanozymes promote spinal cord injury recovery by anti-oxidation and neuroprotection显示文摘Oxidative stress and inflammation are central pathophysiological processes in a traumatic spinal cord injury(SCI).Antioxidant therapies that reduce the reactive oxygen and nitrogen species(RONS)overgeneration and inflammation are proved promising for improving the outcomes.However,efficient and long-lasting antioxidant therapy to eliminate multiple RONS with effective neuroprotection remains challenging.Here,a single-atom cobalt nanozyme(Co-SAzyme)with a hollow structure was reported to reduce the RONS and inflammation in the secondary injury of SCI.Among SAzymes featuring different single metal-N sites(e.g.,Mn,Fe,Co,Ni,and Cu),this Co-SAzyme showed a versatile property to eliminate hydrogen peroxide(H_(2)O_(2)),superoxide anion(O_(2)·^(-)),hydroxyl radical(·OH),nitric oxide(·NO),and peroxynitrite(ONOO^(-))that overexpressed in the early stage of SCI.The porous hollow structure also allowed the encapsulation and sustained release of minocycline for neuroprotection in synergy.In vitro results showed that the Co-SAzyme reduced the apoptosis and pro-inflammatory cytokine levels of microglial cells under oxidative stress.In addition,the Co-SAzyme combined with minocycline achieved remarkable improved functional recovery and neural repairs in the SCI-rat model.Yuxing Jiang Hongtao Rong Yifan Wang Shange Liu Peng Xu Zhen Luo Lamei Guo Tao Zhu(✉) Hongpan Rong Dingsheng Wang Jiatao Zhang Yu Yi Hao Wang 2023Nano Research2023,16,7:2
4Superscalar communication: A runtime optimization for distributed applications显示文摘Building distributed applications is difficult mostly because of concurrency management. Existing approaches primarily include events and threads. Researchers and developers have been debating for decades to prove which is superior. Although the conclusion is far from obvious, this long debate clearly shows that neither of them is perfect. One of the problems is that they are both complex and error-prone. Both events and threads need the programmers to explicitly manage concurrencies, and we believe it is just the source of difficulties. In this paper, we propose a novel approach—superscalar communication, in which concurrencies are automatically managed by the runtime system. It dynamically analyzes the programs to discover potential concurrency opportunities; and it dynamically schedules the communication and the computation tasks, resulting in automatic concurrent execution. This approach is inspired by the idea of superscalar technology in modern microprocessors, which dynamically exploits instruction-level parallelism. However, hardware superscalar algorithms do not fit software in many aspects, thus we have to design a new scheme completely from scratch. Superscalar communication is a runtime extension with no modification to the language, compiler or byte code, so it is good at backward compatibility. Superscalar communication is likely to begin a brand new research area in systems software, which is characterized by dynamic optimization for networking programs.LI HuiBa , LIU ShengYun, PENG YuXing, LI DongSheng, ZHOU HangJun & LU XiCheng National Laboratory for Parallel and Distributed Processing, National University of Defense Technology, Changsha 410073, China 2010Science China(Information Sciences)2010,53,10:2
5Overexpression of OsSPL9 enhances accumulation of Cu in rice grain and improves its digestibility and metabolism显示文摘Copper(Cu)is an essential trace mineral element for all forms of life,and is an important structural component and co-factor for a variety of metalloenzymes(Pen^a et al.,1999;Bertinato and L'Abbe,2004).In humans,Cu deficiency is not common because of the ubiquitous occurrence of Cu and ease of gastrointestinal absorption(Zidar et al.,1977;Uauy et al.,1998).However,because of the low Cu content in most sources of feed,the use of Cu as a growth promoter to maximize animal production has been well documented in animal feeding(Braude,1945;Lu et al.,2010).Pre-Mingfeng Tang Chuanshe Zhou Lu Meng Donghai Mao Can Peng Yuxing Zhu Daoyou Huang Zhiliang Tan Caiyan Chen Chengbing Liu Dechun Zhang 2016Journal of Genetics and Genomics2016,43,11:2
6Orthogonal discrete frequency coding waveform design based on chaos显示文摘Orthogonal waveform design is quite an important issue for waveform diversity systems. A chaos based method for the orthogonal discrete frequency coding waveform (DFCW) design is proposed to increase the insufficient orthogonal waveform number and their finite coding length. Premises for chaos choosing and the frequency quantification method are discussed to obtain the best correlation properties. Simulation results show the validity of the theoretic analysis.Yuxing Peng Jin Yang Zhaokun Qiu Xiang Li 2013Journal of Systems Engineering and Electronics2013,24,4:1
7Robust Redundancy Scheme for the Repair Process: Hierarchical Codes in the BandwidthLlimited Systems显示文摘HUANG Zhen LIN Yisong PENG Yuxing 2012Journal of Grid Computing2012,2012,10:1
8Three-dimen- sional transient temperature field of brake shoe during hoist' s emergency braking 显示文摘Zhu Zhencai Peng Yuxing Shi Zhiyuan 2009Applied Thermal Engineering2009,29,:1
9Novel polyelectrolyte complex carboxymethyl konjac glucomannan-chitosan nanoparticles as drug matrix 显示文摘Du Jian Sun Rui Peng Yuxing 2004Macromol Rapid Commun2004,25,9:1
10Three- dimensi onal transient temperature field of brake shoe during hoist's e- mergency braking显示文摘Zhu Zheneai Peng Yuxing Shi Zhiyuan 2009Applied Thermal Engineering2009,29,56:1
11Magnetic and conductive Fe304-polyaniline nanoparticles with core-shell structure显示文摘Deng Jianguo He Chuanlan Peng Yuxing 2003Synthetic Metals2003,139,:1
12Carbon nanotube–polyaniline hybrid materials显示文摘Jianguo Deng Xiaobin Ding Wenchuan Zhang Yuxing Peng Jianhua Wang Xingping Long Pei Li Albert S.C Chan 2002European Polymer Journal2002,,12:1
13Magnefic and Conductive Fe3O4-polyaniline Nanoparticles With Core-shefi Structure显示文摘Deng Jianguo He ChuanLan Peng Yuxing 2003Synthetic Metals2003,139,2:1
14Three-dimension- al transient temperature field of brake shoe during hoist's emergency braking显示文摘Zhu Zhencai Peng Yuxing Shi Zhiyuan 2008Applied Thermal Engineering2008,29,56:1
15Nanometer polymer latex dispersion and its application in water-based coating显示文摘Peng Yuxing Zheng Zhaohui Ding Xiaobin 0,,2:1
16A facile approach to Fe 3 O 4 @Au nanoparticles with magnetic recyclable catalytic properties显示文摘Yuanpeng Wu Tao Zhang Zhaohui Zheng Xiaobin Ding Yuxing Peng 2009Materials Research Bulletin2009,,4:1
17Surface initiated ATRP in the synthesis of iron oxide/polystyrene core/shell nanoparticles显示文摘Yabin Sun Xiaobin Ding Zhaohui Zheng Xu Cheng Xinhua Hu Yuxing Peng 2006European Polymer Journal2006,,3:1
18Convenient synthesis of novel fluorinated polyurethane hybrid latexes and core-shell structures via emulsion polymerization process with self-emulsification of polyurethane显示文摘Min Jiang Zhaohui Zheng Xiaobin Ding Xu Cheng Yuxing Peng 2007Colloid and Polymer Science2007,,9:1
19Flexible Large-Area Graphene Films of 50-600 nm Thickness with High Carrier Mobility显示文摘Bulk graphene nanofilms feature fast electronic and phonon transport in combination with strong light-matter interaction and thus have great potential for versatile applications,spanning from photonic,electronic,and optoelectronic devices to charge-stripping and electromagnetic shielding,etc.However,large-area flexible close-stacked graphene nanofilms with a wide thickness range have yet to be reported.Here,we report a polyacrylonitrile-assisted’substrate replacement’strategy to fabricate large-area free-standing graphene oxide/polyacrylonitrile nanofilms(lateral size~20 cm).Linear polyacrylonitrile chains-derived nanochannels promote the escape of gases and enable macro-assembled graphene nanofilms(nMAGs)of 50-600 nm thickness following heat treatment at 3,000℃.The uniform nMAGs exhibit 802-1,540 cm^(2)V-1s-1carrier mobility,4.3-4.7 ps carrier lifetime,and>1,581 W m^(-1)K^(-1)thermal conductivity(n MAG-assembled 10μm-thick films,mMAGs).nMAGs are highly flexible and show no structure damage even after 1.0×10^(5)cycles of folding-unfolding.Furthermore,n MAGs broaden the detection region of graphene/silicon heterojunction from near-infrared to mid-infrared and demonstrate higher absolute electromagnetic interference(EMI)shielding effectiveness than state-of-the-art EMI materials of the same thickness.These results are expected to lead to the broad applications of such bulk nanofilms,especially as micro/nanoelectronic and optoelectronic platforms.Shiyu Luo Li Peng Yangsu Xie Xiaoxue Cao Xiao Wang Xiaoting Liu Tingting Chen Zhanpo Han Peidong Fan Haiyan Sun Ying Shen Fan Guo Yuxing Xia Kaiwen Li Xin Ming Chao Gao 2023Nano-Micro Letters2023,15,5:1
20Novel Shape-Memory Polymer with Two Transition Temperature Based on Two Different Memory Mechanism显示文摘Liu Guoqin Ding Xiaobing Cao Yiping Zheng Zhaohui Peng Yuxing 2004合成化学2004,12,z1:0
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