|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Measure theory of statistical convergence显示文摘The question of establishing measure theory for statistical convergence has been moving closer to center stage, since a kind of reasonable theory is not only fundamental for unifying various kinds of statistical convergence, but also a bridge linking the studies of statistical convergence across measure theory, integration theory, probability and statistics. For this reason, this paper, in terms of subdifferential, first shows a representation theorem for all finitely additive probability measures defined on the σ-algebra A of all subsets of N, and proves that every such measure can be uniquely decomposed into a convex combination of a countably additive probability measure and a statistical measure (i.e. a finitely additive probability measure μ with μ(k) = 0 for all singletons {k}). This paper also shows that classical statistical measures have many nice properties, such as: The set S of all such measures endowed with the topology of point-wise convergence on A forms a compact convex Hausdorff space; every classical statistical measure is of continuity type (hence, atomless), and every specific class of statistical measures fits a complementation minimax rule for every subset in N. Finally, this paper shows that every kind of statistical convergence can be unified in convergence of statistical measures. | CHENG LiXin LIN GuoChen LAN YongYi LIU Hui | 2008 | Science China Mathematics2008，51，12： | 26 |
| 2 | Ti/(Ti,Cr)N/CrN multilayer coated 316L stainless steel by arc ion plating as bipolar plates for proton exchange membrane fuel cells显示文摘Arc ion plating(AIP) is applied to form Ti/(Ti,Cr)N/Cr N multilayer coating on the surface of 316 L stainless steel(SS316L) as bipolar plates for proton exchange membrane fuel cells(PEMFCs). The characterizations of the coating are analyzed by scanning electron microscopy(SEM) and X-ray diffraction(XRD). Interfacial contact resistance(ICR) between the coated sample and carbon paper is 4.9 m cm^2 under 150 N/cm^2,which is much lower than that of the SS316 L substrate. Potentiodynamic and potentiostatic tests are performed in the simulated PEMFC working conditions to investigate the corrosion behaviors of the coated sample. Superior anticorrosion performance is observed for the coated sample, whose corrosion current density is 0.12 μA/cm2. Surface morphology results after corrosion tests indicate that the substrate is well protected by the multilayer coating. Performances of the single cell with the multilayer coated SS316 L bipolar plate are improved significantly compared with that of the cell with the uncoated SS316 L bipolar plate, presenting a great potential for PEMFC application. | Shengli Wang Ming Hou Qing Zhao Yongyi Jiang Zhen Wang Huizhe Li Yu Fu Zhigang Shao | 2017 | Journal of Energy Chemistry2017，26，1： | 17 |
| 3 | De novo mutation in ATP6V1B2 impairs lysosome acidification and causes dominant deafness-onychodystrophy syndrome显示文摘 | Yongyi Yuan Jianguo Zhang Qing Chang Jin Zeng Feng Xin Jianjun Wang Qingyan Zhu Jing Wu Jingqiao Lu Weiwei Guo Xukun Yan Hui Jiang Binfei Zhou Qi Li Xue Gao Huijun Yuan Shiming Yang Dongyi Han Zixu Mao Ping Chen Xi Lin Pu Dai | 2014 | Cell Research2014，24，11： | 13 |
| 4 | Semi-tensor product approach to controllability and stabilizability of finite automata显示文摘Using semi-tensor product of matrices, the controllability and stabilizability of finite automata are investigated. By expressing the states, inputs, and outputs in vector forms, the transition and output functions are represented in matrix forms.Based on this algebraic description, a necessary and sufficient condition is proposed for checking whether a state is controllable to another one. By this condition, an algorithm is established to find all the control sequences of an arbitrary length. Moreover, the stabilizability of finite automata is considered, and a necessary and sufficient condition is presented to examine whether some states can be stabilized. Finally, the study of illustrative examples verifies the correctness of the presented results/algorithms. | Yongyi Yan Zengqiang Chen Zhongxin Liu | 2015 | Journal of Systems Engineering and Electronics2015，26，1： | 12 |
| 5 | Solving type-2 fuzzy relation equations via semi-tensor product of matrices显示文摘The problem of solving type-2 fuzzy relation equations is investigated. In order to apply semi-tensor product of matrices,a new matrix analysis method and tool, to solve type-2 fuzzy relation equations, a type-2 fuzzy relation is decomposed into two parts as principal sub-matrices and secondary sub-matrices; an r-ary symmetrical-valued type-2 fuzzy relation model and its corresponding symmetrical-valued type-2 fuzzy relation equation model are established. Then, two algorithms are developed for solving type-2 fuzzy relation equations, one of which gives a theoretical description for general type-2 fuzzy relation equations;the other one can find all the solutions to the symmetrical-valued ones. The results can improve designing type-2 fuzzy controllers,because it provides knowledge to search the optimal solutions or to find the reason if there is no solution. Finally some numerical examples verify the correctness of the results/algorithms. | Yongyi YAN Zengqiang CHEN Zhongxin LIU | 2014 | Control Theory and Technology2014，12，2： | 10 |
| 6 | Circumjacent distribution pattern of the Lungmachian graptolitic black shale(early Silurian) on the Yichang Uplift and its peripheral region显示文摘Stratigraphic hiatuses of variable time intervals within the Rhuddanian to early Aeronian(Llandovery, Silurian) are identified in the area bordering East Chongqing, West Hubei and Northwest Hunan in central China. Their distribution suggested the existence of a local uplift, traditionally named the Yichang Uplift. The diachronous nature of the basal black shale of the Lungmachi Formation crossing different belts of this Uplift signifies the various developing stages during the uplifting process.The present paper defines the temporal and spatial distribution pattern of the Yichang Uplift, which might be one of the important controlling factors for the preservation and distribution of the shale gas in this region, as it has been demonstrated that the shale gas exploration is generally less promising in the areas where more of the basal part of the Lungmachi Formation is missing.Therefore, better understanding of the circumjacent distribution pattern developed throughout the uplifting process may provide the important guidance for the shale gas exploration. The present work is a sister study to the published paper, 'Stage-progressive distribution pattern of the Lungmachian black graplolitic shales from Guizhou to Chongqing, Central China'. These two studies thus provide a complete Ordovician-Silurian black shale distribution pattern in the Middle and Upper Yangtze, a region with the major shale gas fields in China. | Xu CHEN Qing CHEN Yongyi ZHEN Hongyan WANG Linna ZHANG Junpeng ZHANG Wenhui WANG Zhaohui XIAO | 2018 | Science China Earth Sciences2018，61，9： | 9 |
| 7 | Study on method and mechanism for simultaneous desulfurization and denitrification of flue gas based on the TiO_2 photocatalysis显示文摘Based on the TiO2 photocatalysis mechanism, a new method of simultaneous desulfurization and denitrification from flue gas was proposed. Preparation of TiO2 photocatalyst, design of photocatalysis reactor and influencing factors for simul- taneous removal of SO2 and NO, and removal mechanism of SO2 and NO were studied. After the optimal values of concentration of O2 in flue gas, the relative humidity of flue gas and the irradiation time in the photocatalysis reactor were used, the efficiencies of removal for SO2 and NO can be achieved above 98% and about 67%, respectively. According to the results of removal products analysis, the re- moval mechanism of SO2 and NO based on TiO2 photocatlysis can be put forward, namely, SO2 was oxidized to SO3 partly, the bulk of NO was oxidized to NO2, and both were removed by resorbing finally. | ZHAO Yi, ZHAO Li, HAN Jing, XU YongYi & WANG ShuQin School of Environmental Science & Engineering, North China Electric Power University, Baoding 071003, China | 2008 | Science China(Technological Sciences)2008，51，3： | 9 |
| 8 | Semi-tensor product of matrices approach to reachability of finite automata with application to language recognition显示文摘 | Yongyi YAN Zengqiang CHEN Zhongxin LIU | 2014 | Frontiers of Computer Science2014，8，6： | 9 |
| 9 | Effect of Sc and Zr on the in-plane anisotropy of Al-Mg-Mn alloy sheets显示文摘The Al-Mg-Mn alloy sheets with and without trace Sc and Zr were investigated by means of tensile test, X-raydiffraction, optical microscope, and transmission electron microscope. The indexes of in-plane anisotropy (IIPA) of their ten-sile mechanical properties were calculated and their inverse pole figures were obtained by Harris method. The two alloysheets have the same law of in-plane anisotropy and remarkable in-plane anisotropy of mechanical properties, and the IIPA ofthe alloy sheet with Sc and Zr is bigger than that of the alloy sheet without Sc and Zr. The relationships of the in-plane ani-sotropy and the anisotropy of the crystallographic texture were analyzed based on the model of monocrystal. It is the com-mon action of the anisotropy of crystallography and microstructures that causes the in-plane anisotropy of their mechanicalproperties, but the major cause is the {110}<112> crystallographic texture. The trace Sc and Zr can promote the formationand stabilization of the {110}<112> texture, inhibit the formation of the {100}<001> texture, and increase the in-plane ani-sotropy of the alloy sheet containing trace Sc and Zr. | PENG Yongyi YIN Zhimin YANG Jin DU Yuxuan | 2005 | Rare Metals2005，24，3： | 6 |
| 10 | Ordovician integrative stratigraphy and timescale of China显示文摘In this chapter, starting with a brief review of the research history and current status in the studies of the Ordovician chronostratigraphy in China, the subdivision of the Ordovician System, definition and recognition of its series and stage boundaries, and possible stratigraphic gaps are discussed in details in order to establish a multidisciplinary stratigraphic correlation through an integrated approach including lithostratigraphy, biostratigraphy, radiometric dating, chemostratigraphy and magnetostratigraphy. Being internationally accepted, the Ordovician System is now subdivided into three series and seven stages, in ascending order, Lower(Tremadocian, Floian), Middle(Dapingian, Darriwilian) and Upper series(Sandbian, Katian,Hirnantian). Three of the seven 'Golden Spikes' defining the bases of the Ordovician stages, which were established in 1997–2007, are located in China. As a regionally applied chronostratigraphy, the Ordovician System was subdivided in China into Lower(Xinchangian, Yiyangian), Middle(Dapingian, Darriwilian) and Upper series(Neichiashanian, Chientangkiangian,Hirnantian). This scheme agrees largely with the standard international classification, which can actually be directly applied to China, except for some special circumstances where the Neichiashanian and Chientangkiangian stages of the Upper Ordovician are used. Based on the new studies in recent years and distinctions and differences recognized in the development of the Ordovician System in the constituent terranes of China, a new framework for correlation among the major Chinese palaeoplates or terranes, e.g. South China, North China(including Tarim and Qaidam) and Xizang(Tibet)-western Yunnan, has been established. However, it has been recognized herein that uncertainties still remain on defining the base of the Tremadocian,Dapingian and Katian, and on the correlation between different mega-facies. More specifically, for the Tremadocian, the precise correlation of its base will depend on the better-defined conodont taxonomy, while for the Dapingian and Katian, on the correlation between different mega-facies. It is worthwhile to note that the chemostratigraphic studies of the Ordovician System in China produced the carbonate δ13 C curves for the Darriwilian(Middle Ordovician) and Katian(Upper Ordovician), which show significant differences from the composite global curve. Record of the Ordovician isotopic dating is relatively rare in China, with only three reliable ages from zircons that are all from the upper Katian to Hirnantian of the Upper Ordovician.Abundant bentonite beds in the Upper Ordovician of South China will also provide unique opportunities to advance the isotopic dating and related researches. Studies on the Ordovician magnetostratigraphy need to be significantly enhanced in China, as currently all the available results are restricted to the Lower Ordovician of North China, although they can be correlated with those known from other parts of the world. The analysis of the durational unevenness of the seven stages in the Ordovician supports the possibility to further subdivide the long-durational Tremadocian, Darriwilian and Katian stages, each into two substages. | Yuandong ZHANG Renbin ZHAN Yongyi ZHEN Zhihao WANG Wenwei YUAN Xiang FANG Xuan MA Junpeng ZHANG | 2019 | Science China Earth Sciences2019，62，1： | 6 |
| 11 | S1P1 receptor inhibits kidney epithelial mesenchymal transition triggered by ischemia/ reperfusion injury via the PI3K/Akt pathway显示文摘 | Weina Wang Aimei Wang Guochang Luo Fengqiao Ma Xiaoming Wei Yongyi Bi | 2018 | Acta Biochimica et Biophysica Sinica2018，50，7： | 5 |
| 12 | Glucose Protects Cochlear Hair Cells Against Oxidative Stress and Attenuates Noise-Induced Hearing Loss in Mice显示文摘Oxidative stress is the key determinant in the pathogenesis of noise-induced hearing loss(NIHL). Given that cellular defense against oxidative stress is an energyconsuming process, the aim of the present study was to investigate whether increasing energy availability by glucose supplementation protects cochlear hair cells against oxidative stress and attenuates NIHL. Our results revealed that glucose supplementation reduced the noiseinduced formation of reactive oxygen species(ROS) and consequently attenuated noise-induced loss of outer hair cells, inner hair cell synaptic ribbons, and NIHL in CBA/J mice. In cochlear explants, glucose supplementation increased the levels of ATP and NADPH, as well as attenuating H_2O_2-induced ROS production and cytotoxicity. Moreover, pharmacological inhibition of glucose transporter type 1 activity abolished the protective effects of glucose against oxidative stress in HEI-OC1 cells. These findings suggest that energy availability is crucial for oxidative stress resistance and glucose supplementation offers a simple and effective approach for the protection of cochlear hair cells against oxidative stress and NIHL. | Hao Xiong Lan Lai Yongyi Ye Yiqing Zheng | 2021 | Neuroscience Bulletin2021，37，5： | 5 |
| 13 | One-step wet-spinning assembly of twisting-structured graphene/carbon nanotube fiber supercapacitor显示文摘Graphene fiber-based supercapacitors hold great promise as flexible energy-storage devices. However, simultaneously achieving high ion-transport ability in electrode and electrolyte layer, which is crucial for realizing the high electrochemical performance, still remains challenging. Here, a facile and effective strategy to solve the problem was proposed by developing a twisting-structured graphene/carbon nanotube(CNT) fiber supercapacitor via one-step wet-spinning process with customized multi-channel spinneret.The remarkable structure features of the resulting fiber supercapacitor with wrinkled and thin electrolyte layer, and well-developed porosity of fiber electrode favored the rapid infiltration and transport of electrolyte ions inside the electrode, as well as between electrode and electrolyte, thus boosting high specific capacitance of 187.6 mF cm^(-2) and energy density of 30.2 μWh cm^(-2), and featuring long cycling life(93%capacitance retention after 10,000 cycles) and excellent flexibility. Moreover, the specific capacitance and energy density could be further improved to 267.2 m F cm^(-2) and 66.8 μWh cm^(-2), respectively, when Mn O2 was incorporated into the fiber. | Zhengpeng Yang Yuanheng Jia Yutao Niu Yongyi Zhang Chunjing Zhang Ping Li Meng Zhu Qingwen Li | 2020 | Journal of Energy Chemistry2020，29，12： | 4 |
| 14 | Extraction of flavonoids from flavonoid-rich parts in tartary buckwheat and identification of the main flavonoids显示文摘 | Benguo Liu Yongyi Zhu | 2005 | Journal of Food Engineering2005，，2： | 4 |
| 15 | FeCo alloy catalysts promoting polysulfide conversion for advanced lithium-sulfur batteries显示文摘Lithium sulfur batteries(LSBs)draw extensive interest because of the ultra-high capacity and low material cost.However,the sluggish lithium polysulfides(LIPSs)conversion processes are detrimental to cycle stability and rate capability,inhibiting the commercial application of LSBs.Here we present the well-designed Fe Co alloy catalysts anchored on porous carbon(FeCo-C)as sulfur host to improve the electrochemical performance by accelerating the conversion reactions.The FeCo alloy demonstrates high catalytic effect and strong adsorption capability of LIPSs,in which potential polarization can be greatly decreased and'shuttle effects'can be largely avoided.As a result,the obtained S/Fe Co-C composites show an initial specific capacity of 791.9 m Ah g^-1 at a large current density of 2 C and maintain 502.5 mAh g^-1 even after 500 cycles.Moreover,720 m Ah g^-1(corresponding to 70%retention)can be achieved after 100 cycles at 0.2 C with a high sulfur content of 80 wt%,enabling high sulfur utilization.This work not only provides a new insight to investigate the conversion kinetics of Li PSs,but also opens up a new avenue for advanced lithium sulfur batteries. | Hongyi Li Linfeng Fei Rong Zhang Shenglan Yu Yongyi Zhang Longlong Shu Yong Li Yu Wang | 2020 | Journal of Energy Chemistry2020，29，10： | 3 |
| 16 | A high-quality reference genome of wild Cannabis sativa显示文摘Cannabis sativa is a well-known plant species that has great economic and ecological significance.An incomplete genome of cloned C.sativa was obtained by using SOAPdenovo software in 2011.To further explore the utilization of this plant resource,we generated an updated draft genome sequence for wild-type varieties of C.sativa in China using PacBio single-molecule sequencing and Hi-C technology.Our assembled genome is approximately 808 Mb,with scaffold and contig N50 sizes of 83.00 Mb and 513.57 kb,respectively.Repetitive elements account for 74.75%of the genome.A total of 38,828 protein-coding genes were annotated,98.20%of which were functionally annotated.We provide the first comprehensive de novo genome of wild-type varieties of C.sativa distributed in Tibet,China.Due to long-term growth in the wild environment,these varieties exhibit higher heterozygosity and contain more genetic information.This genetic resource is of great value for future investigations of cannabinoid metabolic pathways and will aid in promoting the commercial production of C.sativa and the effective utilization of cannabinoids.The assembled genome is also a valuable resource for intensively and effectively investigating the C.sativa genome further in the future. | Shan Gao Baishi Wang Shanshan Xie Xiaoyu Xu Jin Zhang Li Pei Yongyi Yu Weifei Yang Ying Zhang | 2020 | Horticulture Research2020，7，1： | 3 |
| 17 | Association between arterial stiffness and risk of coronary artery disease in a community-based population显示文摘 | Zhang Yun Ye Ping Luo Leiming Bai Yongyi Xu Ruyi Xiao Wenkai Liu Dejun Wu Hongmei | 2014 | Chinese Medical Journal2014，，22： | 3 |
| 18 | Profiling of hepatocellular carcinoma neoantigens reveals immune microenvironment and clonal evolution related patterns显示文摘Objective: Neoantigens derived from tumor-specific genomic alterations have demonstrated great potential for immunotherapeutic interventions in cancers. However, the comprehensive profile of hepatocellular carcinoma(HCC) neoantigens and their complex interplay with immune microenvironment and tumor evolution have not been fully addressed.Methods: Here we integrated whole exome sequencing data, transcriptome sequencing data and clinical information of 72 primary HCC patients to characterize the HCC neoantigen profile, and systematically explored its interactions with tumor clonal evolution, driver mutations and immune microenvironments.Results: We observed that higher somatic mutation/neoantigen load was associated with better clinical outcomes and HCC patients could be further divided into two subgroups with distinct prognosis based on their neoantigen expression patterns. HCC subgroup with neoantigen expression probability high(NEP-H) showed more aggressive pathologic features including increased incidence of tumor thrombus(P=0.038), higher recurrence rate(P=0.029),more inclined to lack tumor capsule(P=0.026) and with more microsatellite instability sites(P=0.006). In addition,NEP-H subgroup was also characterized by higher chance to be involved in tumor clonal evolution [odds ratio(OR)=46.7, P<0.001]. Gene set enrichment analysis revealed that upregulation of MYC and its targets could suppress immune responses, leading to elevated neoantigen expression proportion in tumor cells. Furthermore, we discovered an immune escape mechanism that tumors could become more inconspicuous by evolving subclones with less immunogenicity. We observed that smaller clonal mutation clusters with higher immunogenicity in tumor were more likely to involve in clonal evolution. Based on identified neoantigen profiles, we also discovered series of neoantigenic hotspot genes, which could serve as potential actionable targets in future.Conclusions: Our results revealed the landscape of HCC neoantigens and discovered two clinically relevant subgroups with distinct neoantigen expression patterns, suggesting the neoantigen expression should be fully considered in future immunotherapeutic interventions. | Zhenli Li Geng Chen Zhixiong Cai Xiuqing Dong Lei He Liman Qiu Yongyi Zeng Xiaolong Liu Jingfeng Liu | 2021 | Chinese Journal of Cancer Research2021，33，3： | 3 |
| 19 | Plastic Mechanism of Multi-pass Double-roller Clamping Spinning for Arc-shaped Surface Flange显示文摘Compared with the conventional single-roller spinning process,the double-roller clamping spinning(DRCS)process can effectively prevent the sheet metal surface wrinkling and improve the the production efficiency and the shape precision of final spun part.Based on ABAQUS/Explicit nonlinear finite element software,the finite element model of the multi-pass DRCS for the sheet metal is established,and the material model,the contact definition,the mesh generation,the loading trajectory and other key technical problems are solved.The simulations on the multi-pass DRCS of the ordinary Q235A steel cylindrical part with the arc-shaped surface flange are carried out.The effects of number of spinning passes on the production efficiency,the spinning moment,the shape error of the workpiece,and the wall thickness distribution of the final part are obtained.It is indicated definitely that with the increase of the number of spinning passes the geometrical precision of the spun part increases while the production efficiency reduces.Moreover,the variations of the spinning forces and the distributions of the stresses,strains,wall thickness during the multi-pass DRCS process are revealed.It is indicated that during the DRCS process the radical force is the largest,and the whole deformation area shows the tangential tensile strain and the radial compressive strain,while the thickness strain changes along the generatrix directions from the compressive strain on the outer edge of the flange to the tensile strain on the inner edge of the flange.Based on the G-CNC6135 NC lathe,the three-axis linkage computer-controlled experimental device for DRCS which is driven by the AC servo motor is developed.And then using the experimental device,the Q235A cylindrical parts with the arc-shape surface flange are formed by the DRCS.The simulation results of spun parts have good consistency with the experimental results,which verifies the feasibility of DRCS process and the reliability of the finite element model for DRCS. | FAN Shuqin ZHAO Shengdun ZHANG Qi LI Yongyi | 2013 | Chinese Journal of Mechanical Engineering2013，26，6： | 3 |
| 20 | Hollow Gradient-Structured Iron-Anchored Carbon Nanospheres for Enhanced Electromagnetic Wave Absorption显示文摘In the present paper,a microwave absorber with nanoscale gradient structure was proposed for enhancing the electromagnetic absorption performance.The inorganic-organic competitive coating strategy was employed,which can effectively adjust the thermodynamic and kinetic reactions of iron ions during the solvothermal process.As a result,Fe nanoparticles can be gradually decreased from the inner side to the surface across the hollow carbon shell.The results reveal that it offers an outstanding reflection loss value in combination with broadband wave absorption and flexible adjustment ability,which is superior to other relative graded distribution structures and satisfied with the requirements of lightweight equipment.In addition,this work elucidates the intrinsic microwave regulation mechanism of the multiscale hybrid electromagnetic wave absorber.The excellent impedance matching and moderate dielectric parameters are exhibited to be the dominative factors for the promotion of microwave absorption performance of the optimized materials.This strategy to prepare gradient-distributed microwave absorbing materials initiates a new way for designing and fabricating wave absorber with excellent impedance matching property in practical applications. | Cao Wu Jing Wang Xiaohang Zhang Lixing Kang Xun Cao Yongyi Zhang Yutao Niu Yingying Yu Huili Fu Zongjie Shen Kunjie Wu Zhenzhong Yong Jingyun Zou Bin Wang Zhou Chen Zhengpeng Yang Qingwen Li | 2023 | Nano-Micro Letters2023，15，1： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员