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| 1 | Optimal Energy-Efficient Transmission for Hybrid Spectrum Sharing in Cooperative Cognitive Radio Networks显示文摘In order to improve the energy efficiency(EE)in cognitive radio(CR),this paper investigates the joint design of cooperative spectrum sensing time and the power control optimization problem for the secondary user systems to achieve the maximum energy efficiency in a cognitive network based on hybrid spectrum sharing,meanwhile considering the maximum transmit power,user quality of service(QoS)requirements,interference limitations,and primary user protection.The optimization of energy efficient sensing time and power allocation is formulated as a non-convex optimization problem.The Dinkelbach’s method is adopted to solve this problem and to transform the non-convex optimization problem in fractional form into an equivalent optimization problem in the form of subtraction.Then,an iterative power allocation algorithm is proposed to solve the optimization problem.The simulation results show the effectiveness of the proposed algorithms for energy-efficient resource allocation in the cognitive network. | Linna Hu Rui Shi Minghe Mao Zhiyu Chen Hongxi Zhou Weiliang Li | 2019 | China Communications2019，16，6： | 9 |
| 2 | Incremental support vector machine algorithm based on multi-kernel learning显示文摘A new incremental support vector machine (SVM) algorithm is proposed which is based on multiple kernel learning.Through introducing multiple kernel learning into the SVM incremental learning,large scale data set learning problem can be solved effectively.Furthermore,different punishments are adopted in allusion to the training subset and the acquired support vectors,which may help to improve the performance of SVM.Simulation results indicate that the proposed algorithm can not only solve the model selection problem in SVM incremental learning,but also improve the classification or prediction precision. | Zhiyu Li Junfeng Zhang Shousong Hu | 2011 | Journal of Systems Engineering and Electronics2011，22，4： | 7 |
| 3 | Flexible and transparent triboelectric nanogenerator based on high performance well-ordered porous PDMS dielectric film显示文摘灵活、透明的摩擦电 nanogenerator (FT-TENG ) 在自我动力的生物传感器系统,电子皮肤和便携电子设备为申请有大潜力。然而,与它的光性质的很少损坏改进输出性能是挑战性的。此处,我们开发了有秩序井然的像巢的多孔的 polydimethylsiloxane (NP-PDMS ) 的 FT-TENG 电影和 graphene 透明电极。有订的毛孔的 NP-PDMS 电影被 500 nm 的盐酸的酸的蚀刻制作用聚集的 nanoparticles 做的大小的 ZnO 范围,有 81.8% 的轻发射度和 118.62ichia coli 的一个水接触角度(E。coli ) ,肠球菌(ENT ) 和全部的大肠菌(TC ) 被分析。除了 EC 和没有 3, ,结果揭示了低 concentrati 吗?? | Xianming He Xiaojing Mu Quan Wen Zhiyu Wen Jun Yang Chenguo Hu Haofei Shi | 2016 | Nano Research2016，9，12： | 6 |
| 4 | Controllable synthesis of nitrogen-doped porous carbon from metal-polluted miscanthus waste boosting for supercapacitors显示文摘High-value reclamation of metal-polluted plants involved in phytoremediation is a big challenge.In this study,nitrogen-doped nanoporous carbon with large specific area of 2359.1 m^(2)g^(-1) is facilely fabricated from metal-polluted miscanthus waste for efficient energy storage.The synergistic effect of KOH,urea and ammonia solution greatly improve the nitrogen quantity and surface area of the synthesized carbon.Electrodes fabricated with this carbon exhibit the excellent capacitance performance of 340.2 F g^(-1) at 0.5 A g^(-1) and a low combined resistance of 0.116Ω,which are competitive with most of previously reported carbon-based electrodes.In addition,the as-obtained carbon electrode shows a high specific capacitance retention of over 99.6%even after 5000 cycles.Furthermore,the symmetric supercapacitor fabricated using the synthesized carbon achieves a superior energy density of 25.3 Wh kg^(-1)(at 400 W kg^(-1))in 1 mol L^(-1) Na_(2)SO_(4)aqueous solution.This work provides an efficient route to upcycle metal-polluted plant waste for supercapacitor applications. | Zuo Chen Man Zhang Yuchen Wang Zhiyu Yang Di Hu Yetao Tang Kai Yan | 2021 | Green Energy & Environment2021，6，6： | 4 |
| 5 | Genome and transcriptome of Papaver somniferum Chinese landrace CHM indicates that massive genome expansion contributes to high benzylisoquinoline alkaloid biosynthesis显示文摘Opium poppy(Papaver somniferum)is a source of morphine,codeine,and semisynthetic derivatives,including oxycodone and naltrexone.Here,we report the de novo assembly and genomic analysis of P.somniferum traditional landrace‘Chinese Herbal Medicine’.Variations between the 2.62 Gb CHM genome and that of the previously sequenced high noscapine 1(HN1)variety were also explored.Among 79,668 protein-coding genes,we functionally annotated 88.9%,compared to 68.8%reported in the HN1 genome.Gene family and 4DTv comparative analyses with three other Papaveraceae species revealed that opium poppy underwent two whole-genome duplication(WGD)events.The first of these,in ancestral Ranunculales,expanded gene families related to characteristic secondary metabolite production and disease resistance.The more recent species-specific WGD mediated by transposable elements resulted in massive genome expansion.Genes carrying structural variations and large-effect variants associated with agronomically different phenotypes between CHM and HN1 that were identified through our transcriptomic comparison of multiple organs and developmental stages can enable the development of new varieties.These genomic and transcriptomic analyses will provide a valuable resource that informs future basic and agricultural studies of the opium poppy. | Li Pei Baishi Wang Jian Ye Xiaodi Hu Lihong Fu Kui Li Zhiyu Ni Zhenlong Wang Yujie Wei Luye Shi Ying Zhang Xue Bai Mengwan Jiang Shuhui Wang Chunling Ma Shujin Li Kaihui Liu Wanshui Li Bin Cong | 2021 | Horticulture Research2021，8，1： | 4 |
| 6 | Elastic Scattering of 7Be on Pb Target显示文摘 | Yang Yanyun Wang Jiansong Wang Qi Huang Meirong Ma Junbing Ma Peng Cao Xiguang Han Jianlong Bai Zhen Jin Shilong Hu Qiang Jin Lei Chen Jiangbo Zhang Xueying Chen Ruofu Hu Zhengguo Xu Shiwei Zhen Chuan Xu Zhiguo Xu Hushan Duan Liming Sun Zhiyu Chen Zhiqiang He Jianjun Li Songlin Lei Xiangguo Fu Fen Zhang Xueheng Yuan Xiaohua Du Chengming Yan Xinshuang Hu Jun Tang Shuwen Ye Ruiping Yang Kun Shi Fudong Zhang Wei Chen Ze Li Long Xu Xing Liu Longxiang Zhang Liyong Lin Qingyun Gou Boxing Xu Ge Zhou Xionghong Zhang Yuhu Xiao Guoqing | 2011 | IMP & HIRFL Annual Report2011，，1： | 4 |
| 7 | Challenges and strategies in high-accuracy manufacturing of the world’s largest SiC aspheric mirror显示文摘In the process of manufacturing the world’s largest silicon carbide(SiC)aspheric mirror,the primary difficulties are mirror blank preparation,asphere fabrication,and testing,as well as cladding and coating.Specifically,the challenges include the homogeneity of the complicated structure casting,accuracy and efficiency of the fabrication process,print-through effect,fidelity and precision of test procedure,stress and denseness of cladding process,the dynamic range of interferometric measurement,and air turbulence error due to the long optical path.To break through such a barrier of difficulties,we proposed the water-soluble room temperature vanishing mold and gel casting technology,homogeneous microstructure reaction-formed joint technology,nano-accuracy efficient compound fabrication,gravity unloading technology,high-denseness low-defect physical vapor deposition(PVD)Si-cladding technology,test data fusion method,and time-domain averaging method,etc.Based on the proposed technologies and methods,we have accomplished the world’s largest SiC aspheric mirror with a size of φ4.03 m.The impressive performance of the SiC aspheric mirror is validated by the characteristics of the fabricated SiC aspheric mirror.The aerial density of the SiC blank is less than 120 kg/m^(2),surface shape test accuracy is better than 6 nm RMS,thickness inhomogeneity of the cladding layer is less than 5%,and the final surface figure error and roughness are 15.2 nm RMS and 0.8 nm RMS,respectively. | Xuejun Zhang Haixiang Hu Xiaokun Wang Xiao Luo Ge Zhang Wenxing Zhao Xiaoyi Wang Zhenyu Liu Ling Xiong Erhui Qi Congcong Cui Yanchao Wang Yingjie Li Xu Wang Longxiang Li Yang Bai Qiang Cheng Zhiyu Zhang Ruigang Li Wa Tang Xuefeng Zeng Weijie Deng Feng Zhang | 2022 | Light(Science & Applications)2022，11，12： | 3 |
| 8 | On summer stratification and tidal mixing in the Taiwan Strait显示文摘在大陆人架上,把海分开成混合得好、成层的地区的前面通常由于潮汐的混合的空间变化在温暖的季节被形成。在这份报纸,使用八年在 situ 水道学的观察,海表面温度( SST )的卫星图象和叶绿素--一( Chl --一)一个潮汐的模型的集中,和结果,我们在潮汐的混合上在台湾海峡和它的依赖调查夏天层化, upwelling ,和河冲淡了水羽毛。在海峡的大多数区域,在决定 thermohaline 结构的潮汐的混合的主导的角色被在二之间的关联证实;然而,在 thermohaline 结构由于 upwelling 和河的重要影响以不同方法变化的地方,有一些区域冲淡的水羽毛。混合得好的区域主要在台湾河岸上并且在被散布近海区域离开 Dongshan 岛, Nanao 岛,和 Pingtan 岛,当北、中央的台湾海峡和台湾河岸的区域南方被成层时。为这个区域的批评 Simpson 猎人参数被估计是 1.78 .[ 出版摘要] | Jia ZHU Jianyu HU Zhiyu LIU | 2013 | Frontiers of Earth Science2013，7，2： | 3 |
| 9 | Effect of Qingxinkaiqiao compound on cortical mRNA expression of the apoptosis-related genes Bcl-2, BAX, caspase-3, and Aβ in an Alzheimer's disease rat model显示文摘OBJECTIVE: To investigate the effects of Qingxinkaiqiao(QK) compound in a rat model of Alzheimer's disease induced with β-amyloid(Aβ) 1-40.METHODS: Fifty-six three months, male,Sprague-Dawley rats were randomly divided into seven groups: blank control group, surgery group,model group, low-dose QK group, middle-dose QK group, high-dose QK group, and Aricept(donepezil hydrochloride) group, with eight rats in each group. Apart from the control and surgery groups,an Alzheimer's disease model was established in all groups by bilateral hippocampal injection of Aβ1-40. The surgery group received an injection of the same volume of physiological saline. Two days after model establishment, rats from the drug groups were administered the corresponding drugs; the control group and model group were administered an equal volume of physiological saline for 14 days. After treatment, real-time quantitative polymerase chain reaction, immunohistochemistry,and western blot assay were employed to confirm mRNA and protein expressions of Bcl-2, Bax, caspase-3, and Aβ, respectively.RESULTS: Compared with the model group, Bcl-2expression increased and Bax, caspase-3, and Aβexpression decreased in each drug treatment group(P < 0.05, P < 0.01). The expressions of middle-dose QK group were more significant than the high- and low-dose QK groups(P < 0.01, P > 0.05).CONCLUSION: QK treatment resulted in significantly up-regulated Bcl-2 expression, down-regulated Bax, caspase-3, and Aβ expression, and reduced numbers of apoptotic cells in the cortex. | Hu Haiyan Wang Yiyu Zhang Yihui Wang Wenhua Xu Dongmei Chen Zhiyu Zhang Xiaoyan Mao Dandan | 2016 | Journal of Traditional Chinese Medicine2016，36，5： | 3 |
| 10 | Structural engineering of sulfur-doped carbon encapsulated bismuth sulfide core-shell structure for enhanced potassium storage performance显示文摘Owing to the high theoretical capacity,metal sulfides have emerged as promising anode materials for potassium-ion batteries(PIBs).However,sluggish kinetics,drastic volume expansion,and polysulfide dissolution during charge/discharge result in unsatisfactory electrochemical performance.Herein,we design a core-shell structure consisting of an active bismuth sulfide core and a highly conductive sulfur-doped carbon shell(Bi2S3@SC)as a novel anode material for PIBs.Benefiting from its unique core-shell structure,this Bi2S3@SC is endowed with outstanding potassium storage performance with high specific capacity(626 mAh·g^(-1)under 50 mA·g^(-1))and excellent rate capability(268.9 mAh·g^(-1)at 1 A·g^(-1)).More importantly,a Bi2S3@SC//KFe[Fe(CN)6]full cell is successfully fabricated,which achieves a high reversible capacity of 257 mAh·g^(-1)at 50 mA·g^(-1)over 50 cycles,holding great potentials in practical applications.Density functional theory(DFT)calculations reveal that potassium ions have a low diffusion barrier of 0.54 eV in Bi2S3 due to the weak van der Waals interactions between layers.This work heralds a promising strategy in the structural design of high-performance anode materials for PIBs. | Changlai Wang Jian Lu Huigang Tong Shuilin Wu Dongdong Wang Bin Liu Ling Cheng Zhiyu Lin Lin Hu Hui Wang Wenjun Zhang Qianwang Chen | 2021 | Nano Research2021，14，10： | 2 |
| 11 | Calibration of Mars Energetic Particle Analyzer (MEPA)显示文摘The first Mars exploration mission of China(Tianwen-1)is scheduled to be launched in 2020;a charged particle telescope,the Mars Energetic Particle Analyzer(MEPA),is carried as one of the payloads on the orbiter.The MEPA is designed to measure solar energetic particles(SEPs)and galactic cosmic rays(GCRs)in the near-Mars space and in the transfer orbit from Earth to Mars.Before the launch,the MEPA was calibrated in ground experiments with radioactive sources,electronic pulses,and accelerator beams.The calibration parameters,such as energy conversion constants,threshold values for the triggers,and particle identification criteria,were determined and have been stored for onboard use.The validity of the calibration parameters has been verified with radioactive sources and beams.The calibration results indicate that the MEPA can measure charged particles reliably,as designed,and that it can satisfy the requirements of the Tianwen-1 mission. | ShuWen Tang Yi Wang HongYun Zhao Fang Fang Yi Qian YongJie Zhang HaiBo Yang CunHui Li Qiang Fu Jie Kong XiangYu Hu Hong Su ZhiYu Sun YuHong Yu BaoMing Zhang Yu Sun ZhiPeng Sun | 2020 | Earth and Planetary Physics2020，4，4： | 2 |
| 12 | Towards carbon neutrality:A study on China's long-term low-carbon transition pathways and strategies显示文摘As the world's biggest carbon dioxide(CO_(2))emitter and the largest developing country,China faces daunting challenges to peak its emissions before 2030 and achieve carbon neutrality within 40 years.This study fully considered the carbon-neutrality goal and the temperature rise constraints required by the Paris Agreement,by developing six long-term development scenarios,and conducting a quantitative evaluation on the carbon emissions pathways,energy transformation,technology,policy and investment demand for each scenario.This study combined both bottom-up and top-down methodologies,including simulations and analyses of energy consumption of end-use and power sectors(bottom-up),as well as scenario analysis,investment demand and technology evaluation at the macro level(top-down).This study demonstrates that achieving carbon neutrality before 2060 translates to significant efforts and overwhelming challenges for China.To comply with the target,a high rate of an average annual reduction of CO_(2) emissions by 9.3%from 2030 to 2050 is a necessity,which requires a huge investment demand.For example,in the 1.5℃ scenario,an investment in energy infrastructure alone equivalent to 2.6%of that year's GDP will be necessary.The technological pathway towards carbon neutrality will rely highly on both conventional emission reduction technologies and breakthrough technologies.China needs to balance a long-term development strategy of lower greenhouse gas emissions that meets both the Paris Agreement and the long-term goals for domestic economic and social development,with a phased implementation for both its five-year and long-term plans. | Jiankun He Zheng Li Xiliang Zhang Hailin Wang Wenjuan Dong Ershun Du Shiyan Chang Xunmin Ou Siyue Guo Zhiyu Tian Alun Gu Fei Teng Bin Hu Xiu Yang Siyuan Chen Mingtao Yao Zhiyi Yuan Li Zhou Xiaofan Zhao Ying Li Danwei Zhang | 2022 | Environmental Science and Ecotechnology2022，，1： | 2 |
| 13 | Effects of trace ytterbium addition on microstructure,mechanical and thermal properties of hypoeutectic Al-5Ni alloy显示文摘Over the past decade,the cast aluminum alloys with excellent mechanical and conductivity properties have emerged as potential materials for thermal management.However,the traditional Al-Si based alloys are difficult to make significant breakthrough in conductivity performance.The hypoeutectic Al-5Ni alloy also possesses sound castability and is expected to be applied in thermal management applications.In this study,the effects of ytterbium(Yb element) at 0-0.5 wt% on the microstructures as well as the electrical/thermal conductivity and mechanical properties of the Al-5Ni alloy were systematically investigated.The experimental results indicate that the addition of Yb at a relatively low amount not only reduces the secondary dendrite arm spacing of the α-Al grains,but also modifies the morphology and distribution of eutectic boundary phase.Moreover,it is found that the dosage of Yb at 0.3 wt% in the Al-5Ni alloy can simultaneously improve the yield strength,ultimate tensile strength and electrical/thermal conductivity.The strengthening and toughening of the Al-5Ni alloy are mainly attributed to the decrease of secondary dendrite arm spacing and the improvement of eutectic phases.The transmission electron microscopy/selected area electron diffraction(TEM/SAED) analysis indicates that the ytterbium in Al-5Ni alloy will form Al_(3)Yb phase,which mainly agglomerates in the Al_(3)Ni phase region.This phase is helpful to decrease the solubility of impurity elements(e.g.,Fe and Si) in the α-Al matrix,which is beneficial to electrical/thermal conductivity.The value of this study lays foundation for manufacturing Al-Ni alloys with high thermal conductivity and acceptable mechanical properties. | Kang Wang Shaodong Hu Yanglin Zhong Shuoxun Jin Zirong Zhou Zhiyu Wang Jiongcai Chen Bingbing Wan Wenfang Li | 2022 | Journal of Rare Earths2022，40，8： | 2 |
| 14 | Comparative research on the mechanical property and precipitation of the 2101 and 2205 duplex stainless steels显示文摘The mechanical property and precipitation of the 2101 and 2205 duplex stainless steels were investigated.The results show that with nitrogen-content increasing from 0.12% to 0.26% to partly replace nickel,the yield strength of the 2101 steel gains an increase of 80 MPa whilst its elongation proportion keeps unchanged.The impact energy at a low temperature is obviously reduced.The temperature at which the impact energy starts decreasing is lower than 20℃,-20℃ and-40℃ for the 2101 steels containing 0.5%Ni,1.5%Ni and 2.5%Ni respectively,whereas it is-70℃ for the 5%Ni-containing 2205 steel.The nose temperature of precipitation is 700℃ for the 2101 steel and 850℃ for the 2205 steel.The scanning electronic microscope(SEM),the transmission electron microscope(TEM)and the X-ray diffraction(XRD)analyses show that the drop in the impact energy of the 2101 steel can be mainly attributed to the precipitation of Cr2N upon ageing while it is attributed to the sigma phase for the 2205 steel. | ZHANG Wei JIANG Laizhu SONG Hongmei HU Jincheng WANG Zhiyu | 2010 | Baosteel Technical Research2010，4，2： | 2 |
| 15 | MicroRNA-146a rs2910164 polymorphism is associated with susceptibility to non-small cell lung cancer in the Chinese population显示文摘 | Youchao Jia Aimin Zang Yanhong Shang Hua Yang Zizheng Song Zhiyu Wang Lili Ren Yaning Wei Ling Hu Hongyun Shi Hefei Li | 2014 | Medical Oncology2014，，： | 1 |
| 16 | Integration Path of Coastal Leisure Tourism Resources in Rizhao Based on Regional Economic Theory显示文摘Aiming at the rapid development of leisure tourism in coastal cities,the regional economic theory was first analyzed based on existing studies,the integration path of coastal leisure tourism resources in Rizhao was explored using the theory of unbalanced growth of regional economy and the theory of industrial agglomeration,and four countermeasures were proposed for the development of coastal leisure tourism in Rizhao City. | QIN Zhiyu HU Xiuli DING Mingjun | 2018 | Journal of Landscape Research2018，10，3： | 1 |
| 17 | Temperature and size effects on electrical properties and thermoelectric power of Bismuth Telluride thin films deposited by co-sputtering显示文摘 | Zhigang Zeng Penghui Yang Zhiyu Hu | 2013 | Applied Surface Science2013，，： | 1 |
| 18 | Antidepressant- like effects of liquiritin and isoliquiritin from Gtycyrrhiza uralensis in the forced swinuning test and tail suspension test in mice显示文摘 | Weixing Wang Xinying Hu Zhiyu Zhao | 2008 | Progress in Neuro-Psychopharmacology & Biologicalp sychiatry2008，32，5： | 1 |
| 19 | Distributed Stepping Motor Control System显示文摘The beam diagnostic devices used at RIBLL are driven by stepper motors, which are controlled by I/O modules based on ISA-bus in an industrial computer. The disadvantages of such mode are that a large number of long cables are used and one computer to control is unsafe. We have developed a distributed stepping motor control system for the remote, local and centralized control of the stepping motors. RS-485 bus is used for the connection between the remote control unit and the local control units. The con... | Bai Jie, Chen Zhiqiang, Xiao Guoqing, Zhan Wenlong, Guo Zhongyan, Wang Meng, Sun Zhiyu Li Jiaxing, Tian Wendong, Wang Jiansong, Wang Wusheng, Mao Ruishi, Chen Zhiqiang Hu Zhcngguo, Chen Lixin and Li Ch | 2001 | IMP & HIRFL Annual Report2001，，1： | 1 |
| 20 | Photocatalytic activity and interfacial carrier transfer of Ag-TiO2 nanoparticle films显示文摘 | Baifu Xin Zhiyu Ren Haiyuan Hu | 2005 | Appl Surf Sci2005，252，： | 1 |
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