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59篇 您的检索式:作者名="WANG YanZhao"
    题名 作者 年代 出处 被引量
1GPS-constrained inversion of present-day slip rates along major faults of the Sichuan-Yunnan region, China显示文摘A linked-fault-element model is employed to invert for contemporary slip rates along major active faults in the Sichuan-Yunnan region (96°-108°E, 21°-35°N) using the least squares method. The model is based on known fault geometry, and constrained by a GPS-derived horizontal velocity field. Our results support a model attributing the eastward extrusion of the Tibetan Plateau driven mainly by the north-northeastward indentation of the Indian plate into Tibet and the gravitational collapse of the plateau. Resisted by a relatively stable south China block, materials of the Sichuan-Yunnan region rotate clockwise around the eastern Himalayan tectonic syntaxis. During the process the Garzê-Yushu, Xianshuihe, Anninghe, Zemuhe, Daliangshan, and Xiaojiang faults, the southwest extension of the Xiaojiang fault, and the Daluo-Jinghong and Mae Chan faults constitute the northeast and east boundaries of the eastward extrusion, with their left slip rates being 0.3-14.7, 8.9-17.1, 5.1 ± 2.5, 2.8 ± 2.3, 7.1 ± 2.1, 9.4 ± 1.2, 10.1 ± 2.0, 7.3 ± 2.6, and 4.9 ± 3.0 mm/a respectively. The southwestern boundary consists of a widely distributed dextral transpressional zone other than a single fault. Right slip rates of 4.2 ± 1.3, 4.3 ± 1.1, and 8.5 ± 1.7 mm/a are detected across the Nanhua-Chuxiong-Jianshui, Wuliangshan, and Longling-Lancang faults. Crustal deformation across the Longmenshan fault is weak, with short-ening rates of 1.4 ± 1.0 and 1.6 ± 1.3 mm/a across the Baoxing-Beichuan and Beichuan-Qingchuan segments. Northwest of the Longmenshan fault lies an active deformation zone (the Longriba fault) with 5.1±1.2 mm/a right slip across. Relatively large slip rates are detected across a few faults within the Sichuan-Yunnan block: 4.4±1.3 mm/a left slip and 2.7±1.1 mm/a shortening across the Litang fault, and 2.7±2.3 mm/a right-lateral shearing and 6.7±2.3 mm/a shortening across the Yunongxi fault and its surrounding regions. In conclusion, we find that the Sichuan-Yunnan region is divided into more than a dozen active micro-blocks by a large number of faults with relatively slow slip rates. The eastward extrusion of the Tibetan Plateau is absorbed and adjusted in the region mainly by these faults, other than a small number of large strike-slip faults with fast slip rates.WANG YanZhao WANG EnNing SHEN ZhengKang WANG Min GAN WeiJun QIAO XueJun MENG GuoJie LI TieMing TAO Wei YANG YongLin CHENG Jia LI Peng 2008Science China Earth Sciences2008,51,9:65
2Deep structure beneath the southwestern section of the Longmenshan fault zone and seimogenetic context of the 4.20 Lushan M_S7.0 earthquake显示文摘Magnetotelluric measurements were carried out along two profiles across the middle and southwestern sections of the Longmenshan fault zone(LMSf)from 2009 to 2011,after the 2008 Wenchuan MW7.9 earthquake.The former profile crosses the Wenchuan event epicenter and the latter one crosses 2013 Lushan MS7.0 event epicenter.The data were analyzed using advanced processing techniques,including phase tensor and two-dimensional inversion methods,in order to obtain reliable 2-D profiles of the electrical structure in the vicinity of the two earthquakes.A comparison of the two profiles indicates both similarities and differences in the deep crustal structure of the LMSf.West of the southwestern section,a crustal high conductivity layer(HCL)is present at about 10 km depth below the Songpan-Garzêblock;this is about 10 km shallower than that under the middle section of the LMSf.A high resistivity body(HRB)is observed beneath the southwestern section,extending from the near surface to the top of upper mantle.It has a smaller size than the HRB observed below the middle section.In the middle section,there is a local area of decreased resistivity within the HRB but there is absence of this area.The 2013 Lushan earthquake occurred close to the eastern boundary of HRB and the Shuangshi-Dachuan fault,of which the seismogenic context has both common and different features in comparison with the 2008 Wenchuan event.On a large scale,the 2013 Lushan earthquake is associated with the HCL and deformation in the crust including HCL of the eastern Tibetan Plateau.In order to assess seismic risk,it is important to consider both the stress state and the detailed crustal structure in different parts of the LMSf.ZHAN Yan ZHAO GuoZe UNSWORTH Martyn WANG LiFeng CHEN XiaoBin LI Tao XIAO QiBin WANG JiJun TANG Ji CAI JunTao WANG YanZhao 2013Chinese Science Bulletin2013,58,28:39
3Far-field coseismic displacements associated with the 2011 Tohoku-oki earthquake in Japan observed by Global Positioning System显示文摘Analysis of GEONET observations covering the entire territory of Japan shows that the great Tohoku-oki earthquake that occurred on March 11, 2011 off the east coast of Honshu in Japan caused an eastward movement of the northern part of the island by as much as 5.3 m. The GPS data from TEONET in China were used to derive far-field coseismic displacements and to assess the impact of the Tohoku-oki earthquake on crustal deformation in eastern China. The results reveal that the coseismic horizontal displacements induced by the earthquake are the level of millimeters to centimeters in North and Northeast China, with a maximum of 35 mm. Strain analysis also indicates that the earthquake resulted in an increase in the tensile strain on the north-northeast trending faults in North and Northeast China. The tensile strain imposed on the Yilan-Yitong and Dunhua-Mishan faults is more significant than that imposed on the faults in North China; the maximum normal strain reaches about 40 nano-strain. Considering that the static Coulomb stress loaded on the faults is limited, its effect on the regional seismic activity may not be significant.WANG Min LI Qiang WANG Fan ZHANG Rui WANG YanZhao SHI HongBo ZHANG PeiZhen SHEN ZhengKang 2011Chinese Science Bulletin2011,56,23:34
4High-Chern-number and high-temperature quantum Hall effect without Landau levels显示文摘The quantum Hall effect(QHE)with quantized Hall resistance ofh/ve2 started the research on topological quantum states and laid the foundation of topology in physics.Since then,Haldane proposed the QHE without Landau levels,showing nonzero Chern number|C|=1,which has been experimentally observed at relatively low temperatures.For emerging physics and low-power-consumption electronics;the key issues are how to increase the working temperature and realize high Chern numbers(C>1).Here,we report the experimental discovery of high-Chern-number QHE(C=2)without Landau levels and C=1 Chern insulator state displaying a nearly quantized Hall resistance plateau above the Neel temperature in MnBi2Te4 devices.Our observations provide a new perspective on topological matter and open new avenues for exploration of exotic topological quantum states and topological phase transitions at higher temperatures.Jun Ge Yanzhao Liu Jiaheng Li Hao Li Tianchuang Luo Yang Wu Yong Xu Jian Wang 2020National Science Review2020,7,8:10
5The change in population density from 2000 to 2010 and its influencing factors in China at the county scale显示文摘在人口分发和密度学习变化能为地区性的开发提供重要基础并且计划。空间模式和在在中国的人口密度的变化的开车因素还不是清楚的。用在 2000 和 2010 的人口普查数据,因此,这研究第一在中国分析了人口密度的变化并且在所有 2353 个县把变化划分了成 4 种类型,由快速的增加,慢增加,慢减少和快速的减少组成。随后,基于部分最少的平方(请) 回归方法,我们认出了重要因素(在 11 个自然、社会经济的因素之中) 为有人口变化的不同类型的整个国家和县的影响人口密度变化。结果显示出那:( 1 )在 2010 ,与在 2000 的人口密度相比,在大多数县(超过60%)的人口密度每 km 由 21 个人增加了<啜class=“ a-plus-plus ”> 2 平均,当在另外的县的人口密度每 km 由 13 个人减少了时<啜class=“ a-plus-plus ”> 2 。所有 2353 个县,当 458 和 446 个县分别地在人口密度显示出慢、快速的减少时, 860 和 589 个县分别地在人口密度显示出快速、慢的增加。(2 ) 在 11 个因素之中,社会经济的因素比自然因素更显著地影响了人口密度变化。更高经济的发展水平,更好医药的条件和更强壮的通讯能力是人口增加的主要的拉因素。稠密的人口密度是人口减少的主要的推因素。这些结论在过去的 10 年在中国澄清了人口变化和它的影响因素的空间模式并且能为计划的未来人口提供有用参考。WANG Lu FENG Zhiming YANG Yanzhao 2015Journal of Geographical Sciences2015,25,4:8
6Tensor force effect on proton shell structure in neutron-rich Ca isotopes显示文摘In the framework of the Skyrme-Hartree-Fock approach with 36 sets of the TI J parameterizations,the tensor force effect on the evolution of the single-proton states in the calcium isotopes is systematically investigated.It is shown that the single-proton states with higher angular momenta are influenced significantly by the tensor force and the trend in the evolution of somesingle-particle energy differences with the mass number of the isotopes depends sensitively on a parameter βT associated with the intensity of the tensor force.To understand this phenomenon,we analyze the spin-orbit potentials and the radial wave functions of relevant single-proton orbits in detail.In addition,it is found that some TI J interactions could cause the 2s1/21d3/2 energy level inversion in 48Ca.LI ZhenYu WANG YanZhao YU GuoLiang GU JianZhong 2013Science China(Physics,Mechanics & Astronomy)2013,56,9:7
7High-resolution, full-color quantum dot light-emitting diode display fabricated via photolithography approach显示文摘Displays play an extremely important role in modern information society,which creates a never-ending demand for the new and better products and technologies.The latest requirements for novel display technologies focus on high resolution and high color gamut.Among emerging technologies that include organic light-emitting diode(OL ED),micro light-emiting diode(micro-LED),quantum dot light-emitting diode(QLED),laser display,holographic display and others,QLED is promising owing to its intrinsic high color gamut and the possibility to achieve high resolution with photolithography approach.However,previously demonstrated photolthography techniques suffer from reduced device performance and color Impurities in subpixels from the process.In this study,we demonstrated a sacrificial layer assisted patterming(SLAP)approach,which can be applied in conjunction with photolithography to fabricate high-resolution,full-colo quantum dot(QD)patterns.In this approach,the negative photoresist(PR)and sacrificial layer(SL)were uilized to determine the pixels for QD deposition,while at the same time the SL helps protect the QD layer and keep it intact(named PR-SL approach).To prove this method's viability for QLED display manufacture,a 500-ppi,full-color passive matrix(PM)-QLED prototype was fabricated via this process.Results show that there were no color impurities in the subpixels,and the PM-QL ED has a high color gamut of 114%National Television Standards Committee(NTSC).To the best of our knowledge,this is the first ull-olor QLED prototype with such a high resolution.We anticipate that this innovative patteming technique will open a new horizon for future display technologies and may lead to a disruptive and innovative change in display industry.Wenhai Mei Zhenqi Zhang Aidi Zhang Dong Li Xiaoyuan Zhang Haowei Wang Zhuo Chen Yanzhao Li Xinguo Li Xiaoguang Xu 2020Nano Research2020,13,9:6
8Research on the suitability of population distribution at the provincial scale in China显示文摘在人口分发和资源,环境和社会经济的开发之间的关系在人的发展有重要影响。这篇论文建立了一套索引为对在人口和资源,环境和社会经济的开发之间的协作的评价的系统和模型方法,并且它份量上分别地在 2000 和 2010 在省的规模评估了这协作。在省的规模基于索引系统,适用性度和人口分发的空间时间的模式的这个集合小心地被描绘。在省的规模的人口分发的限制被分级并且分类,并且人口,资源,环境和社会经济的协调发展策略最后被提出。结果显示出那:(1 ) 在省的规模的人口分发的环境适用性在中国通常高,它趋于从 2000 ~ 2010 稳定。(2 ) 在省的规模的水和陆地资源的限制在中国通常是强壮的,但是它趋于从 2000 ~ 2010 弱。(3 ) 在在省的规模的社会经济的发展和人口分发之间的协作度主要在中间的水平,它在从 2000 ~ 2010 的积极向上的路径。(4 ) 在省的规模的人口分发的适用性主要在中间的水平,所有哪个从 2000 ~ 2010 正在升起。(5 ) 在在省的规模的人口分发和资源,环境和社会经济的开发之间的协作度被划分成四个等级,包括基本协作,相对协作,等候的协作和迫切需要的协作。(6 ) 在中国在不同区域支持人口,资源和环境的协调发展的基本方法能是被总结:实现人口凝块和撤退的策略,指导人口的有序的流动,优化人口的空间分发并且起草人口开发的空间计划。YANG Yanzhao FENG Zhiming WANG Lu YOU Zhen 2014Journal of Geographical Sciences2014,24,5:5
9Construction of a small-caliber tissue-engineered blood vessel using icariin-loaded β-cyclodextrin sulfate for in situ anticoagulation and endothelialization显示文摘The rapid endothelialization of tissue-engineered blood vessels(TEBVs) can effectively prevent thrombosis and inhibit intimal hyperplasia. The traditional Chinese medicine ingredient icariin is highly promising for the treatment of cardiovascular diseases.β-cyclodextrin sulfate is a type of hollow molecule that has good biocompatibility and anticoagulation properties and exhibits a sustained release of icariin. We studied whether icariin-loaded β-cyclodextrin sulfate can promote the endothelialization of TEBVs. The experimental results showed that icariin could significantly promote the proliferation and migration of endothelial progenitor cells; at the same time, icariin could promote the migration of rat vascular endothelial cells(RAVECs). Subsequently,we used an electrostatic force to modify the surface of the TEBVs with icariin-loaded β-cyclodextrin sulfate, and these vessels were implanted into the rat common carotid artery. After 3 months, micro-CT results showed that the TEBVs modified using icariin-loaded β-cyclodextrin sulfate had a greater patency rate. Scanning electron microscopy(SEM) and CD31 immunofluorescence results showed a better degree of endothelialization. Taken together, icariin-loaded β-cyclodextrin sulfate can achieve anticoagulation and rapid endothelialization of TEBVs to ensure their long-term patency.Jingyuan Yang Keyu Wei Yeqin Wang Yanzhao Li Ning Ding Da Huo Tianran Wang Guanyuan Yang Mingcan Yang Tan Ju Wen Zeng Chuhong Zhu 2018Science China(Life Sciences)2018,61,10:5
10Deterministic Approach to Achieve Full-Polarization Cloak显示文摘Achieving full-polarization(σ)invisibility on an arbitrary three-dimensional(3D)platform is a long-held knotty issue yet extremely promising in real-world stealth applications.However,state-of-the-art invisibility cloaks typically work under a specific polarization because the anisotropy and orientation-selective resonant nature of artificial materials made theσ-immune operation elusive and terribly challenging.Here,we report a deterministic approach to engineer a metasurface skin cloak working under an arbitrary polarization state by theoretically synergizing two cloaking phase patterns required,respectively,at spin-up(σ+)and spin-down(σ−)states.Therein,the wavefront of any light impinging on the cloak can be well preserved since it is a superposition ofσ+andσ−wave.To demonstrate the effectiveness and applicability,several proof-of-concept metasurface cloaks are designed to wrap over a 3D triangle platform at microwave frequency.Results show that our cloaks are essentially capable of restoring the amplitude and phase of reflected beams as if light was incident on a flat mirror or an arbitrarily predesigned shape under full polarization states with a desirable bandwidth of~17.9%,conceiving or deceiving an arbitrary object placed inside.Our approach,deterministic and robust in terms of accurate theoretical design,reconciles the milestone dilemma in stealth discipline and opens up an avenue for the extreme capability of ultrathin 3D cloaking of an arbitrary shape,paving up the road for real-world applications.He-Xiu Xu Yanzhao Wang Chaohui Wang Mingzhao Wang Shaojie Wang Fei Ding Yongjun Huang Xiaokuan Zhang Haiwen Liu Xiaohui Ling Wei Huang 2021Research2021,,1:5
11Joint Allocation of Wireless Resource and Computing Capability in MEC-Enabled Vehicular Network显示文摘In MEC-enabled vehicular network with limited wireless resource and computation resource,stringent delay and high reliability requirements are challenging issues.In order to reduce the total delay in the network as well as ensure the reliability of Vehicular UE(VUE),a Joint Allocation of Wireless resource and MEC Computing resource(JAWC)algorithm is proposed.The JAWC algorithm includes two steps:V2X links clustering and MEC computation resource scheduling.In the V2X links clustering,a Spectral Radius based Interference Cancellation scheme(SR-IC)is proposed to obtain the optimal resource allocation matrix.By converting the calculation of SINR into the calculation of matrix maximum row sum,the accumulated interference of VUE can be constrained and the the SINR calculation complexity can be effectively reduced.In the MEC computation resource scheduling,by transforming the original optimization problem into a convex problem,the optimal task offloading proportion of VUE and MEC computation resource allocation can be obtained.The simulation further demonstrates that the JAWC algorithm can significantly reduce the total delay as well as ensure the communication reliability of VUE in the MEC-enabled vehicular network.Yanzhao Hou Chengrui Wang Min Zhu Xiaodong Xu Xiaofeng Tao Xunchao Wu 2021China Communications2021,18,6:4
12Progress,problems and prospects for standardization of greenhouse-related technologies显示文摘In recent years,the scale of greenhouse grows rapidly and steadily in China,which promotes the development of greenhouse technology and the demand for standardized technology.However,the standardization process of greenhouse industry in China has been facing with the problem of unbalanced development with the practical standard system for many years.To solve these problems,the most characteristic greenhouse designs used in China contributing to this work are presented in detail.And the development of standard system and the standardization efforts of them are summarized and analyzed in relationship to the data presented in this paper.In this way the origin of greenhouse standard system in China and context of the system development and standardization of greenhouse structure are clarified.It was also found that the development and iterative update of greenhouse standard system are under the influences of enterprises which as the participation of standard constitutors were proved to play an important role in promoting the standardization development of greenhouse.The outcome of this work may be utilized to perfect the greenhouse standardization system and improve the greenhouse standardization efficiency that dominate the facility agriculture in China.Yanzhao Ren Minjuan Wang Iftikhar Ahmed Saeeda Xuerui Chen Wanlin Gao 2018International Journal of Agricultural and Biological Engineering2018,11,1:4
13An enrichment model using regular health examination data for early detection of colorectal cancer显示文摘Objective: Challenges remain in current practices of colorectal cancer(CRC) screening, such as low compliance,low specificities and expensive cost. This study aimed to identify high-risk groups for CRC from the general population using regular health examination data.Methods: The study population consist of more than 7,000 CRC cases and more than 140,000 controls. Using regular health examination data, a model detecting CRC cases was derived by the classification and regression trees(CART) algorithm. Receiver operating characteristic(ROC) curve was applied to evaluate the performance of models. The robustness and generalization of the CART model were validated by independent datasets. In addition, the effectiveness of CART-based screening was compared with stool-based screening.Results: After data quality control, 4,647 CRC cases and 133,898 controls free of colorectal neoplasms were used for downstream analysis. The final CART model based on four biomarkers(age, albumin, hematocrit and percent lymphocytes) was constructed. In the test set, the area under ROC curve(AUC) of the CART model was 0.88 [95%confidence interval(95% CI), 0.87-0.90] for detecting CRC. At the cutoff yielding 99.0% specificity, this model’s sensitivity was 62.2%(95% CI, 58.1%-66.2%), thereby achieving a 63-fold enrichment of CRC cases. We validated the robustness of the method across subsets of test set with diverse CRC incidences, aging rates, genders ratio, distributions of tumor stages and locations, and data sources. Importantly, CART-based screening had the higher positive predictive value(1.6%) than fecal immunochemical test(0.3%).Conclusions: As an alternative approach for the early detection of CRC, this study provides a low-cost method using regular health examination data to identify high-risk individuals for CRC for further examinations. The approach can promote early detection of CRC especially in developing countries such as China, where annual health examination is popular but regular CRC-specific screening is rare.Qiang Shi Zhaoya Gao Pengze Wu Fanxiu Heng Fuming Lei Yanzhao Wang Qingkun Gao Qingmin Zeng Pengfei Niu Cheng Li Jin Gu 2019Chinese Journal of Cancer Research2019,31,4:3
14Influence of the March 11,2011 M_w 9.0 Tohoku-oki earthquake on regional volcanic activities显示文摘Two days after the March 11,2011,Mw 9.0 Tohoku-oki earthquake,Shinmoedake volcano,located on the Japanese island of Honshu,erupted.Was this eruption triggered by the Tohoku-oki earthquake?Could Mount Fuji and Changbaishan volcanoes also be triggered to erupt?By calculating changes in the regional stress-strain field that resulted from the earthquake,we find that Mount Fuji,Shinmoedake and Changbaishan volcanoes are all located in regions of volumetric expansion.The volumetric expan-sions at a depth of 10 km are up to~220 nano-strain,~8 nano-strain,and~14 nano-strain,respectively,for the three volcanoes. The strain changes inferred from GPS co-seismic displacements also suggest that these three volcanoes are located in regions with surface areal expansion.Considering that the expansional stress may cause the opening of magma channels,exsolution of CO2 gases stored in magma,and a series of positive feedback effects,the Tohoku-oki earthquake may result in an increase in the activ-ity of these volcanoes.Attention should be paid to potential triggering of volcanic eruptions by stress changes induced by the Tohoku-oki earthquake.WANG Fan SHEN ZhengKang WANG YanZhao WANG Min 2011Chinese Science Bulletin2011,56,20:3
15UWB positioning enhancement using Markov chain in indoor NLOS environment显示文摘The accuracy of the positioning system in indoor environment is often affected by none-line-of-sight(NLOS) propagation. In order to improve the positioning accuracy in indoor NLOS environment, a method used ultra-wide-band(UWB) technology, which based on time of arrival(TOA) principle, combining Markov chain and fingerprint matching was proposed. First, the TOA algorithm is used to locate the target tag. Then the Markov chain is used to identify if blocking happened and revise the position result. And the fingerprint matching is used to further improve the position accuracy. Finally, an experiment system was built to test the accuracy of the proposed method and the traditional Kalman filter method. The experimental results show that, compared with the traditional Kalman filter method, the proposed method can improve the positioning accuracy in indoor NLOS environment.Li Shaoxian Lii Fan Wang Chengrui Hou Yanzhao 2020The Journal of China Universities of Posts and Telecommunications2020,27,4:3
16Optically tunable fluorescent carbon nanoparticles and their application in fluorometric sensing of copper ions显示文摘A series of carb on nano particles(CNPs)with emissi on wavele ngth ranging from 483 to 525 nm were prepared by hydrothermal treatme nt of poly-3-thiopheneacetic acid(PTA)and NaOH.The emission wavelength and surface oxidation degree of CNPs were shown to be controllable by simply adjusti ng NaOH concentration.These CNPs prese nted obvious fluoresce nee spectral response toward copper ions(Cu^2+)through static quenching caused synergistically by electron transfer and inner filter effect.The O-and S-containing groups on the surface of CNPs were dem on strated to be resp on sible for their outsta nding sensing performa nee.Based on that,a CN Ps-based ratiometric fluoresce nt probe for Cu^2+with a high fluoresce nee quenching rate constant of 1.4×10^5 L/mol and a short resp onse time(10 s)was developed.Their practical applications in detecting Cu^2+in pond water and living cells were also dem on strated.Minhuan Lan Shaojing Zhao Shuilin Wu Xiaofang Wei Yanzhao Fu Juanjuan Wu Pengfei Wang Wenjun Zhang 2019Nano Research2019,12,10:2
17Tensor force effect on single-proton energy levels of oxygen isotopes显示文摘In the framework of the Hartree-Fock approach the proton spin-orbital splittings of the 1p orbits and the shell gaps in the oxygen isotopes are investigated with the interactions SLy5+T,SLy5+Tw,SGII+Te1,SGII+Te2,SGII+Te3 and many sets of the TIJ interactions.All of the interactions are the Skyrme interactions and contain a tensor component(tensor force).It is shown that the evolution of the single-proton levels for the oxygen isotopes is sensitive to a parameterβTwhich is associated with the tensor force strength of the Skyrme interactions.To understand this phenomenon,we systematically analyze the dependence of the spin-orbit splittings and shell gaps on the parameterβTin terms of the spin-orbit potential and the corresponding wave function.We find that the Skyrme interactions can be classified into two groups:(a)T21,T32,T43,T54,SLy5+T,SLy5+Tw,SGII+Te1 and SGII+Te2,which can roughly reproduce the experimental shell gaps of the oxygen isotopes;(b)T1J and SGII+Te3,which can not reproduce the experimental shell gaps.YU GuoLiang GU JianZhong WANG YanZhao LI ZhenYu MENG GaoQing 2014Science China(Physics,Mechanics & Astronomy)2014,57,9:2
18HOMOTOPY CONTINUATION METHODS FOR STOCHASTIC TWO-POINT BOUNDARY VALUE PROBLEMS DRIVEN BY ADDITIVE NOISES显示文摘在这份报纸,为添加剂噪音驾驶的随机的二点的边界价值问题的 homotopy 继续方法被学习。homotopy 方程的答案的存在被证明。数字计划被构造,错误估计被获得。数字实验在象射击方法那样的另外的通常使用的方法上表明 homotopy 继续方法的有效性。[从作者抽象]Yanzhao Cao PengWang Xiaoshen Wang 2014Journal of Computational Mathematics2014,32,6:1
19Log-periodic quantum magneto-oscillations and discrete-scale invariance in topological material HfTe5显示文摘Discrete-scale invariance(DSI)is a phenomenon featuring intriguing log-periodicity that can be rarely observed in quantum systems.Here,we report the log-periodic quantum oscillations in the longitudinal magnetoresistivity(ρxx)and the Hall traces(ρyx)of Hf Te5 crystals,which reveal the DSI in the transport-coefficients matrix.The oscillations inρxx andρyx show the consistent log B-periodicity with a phase shift.The finding of the log B oscillations in the Hall resistance supports the physical mechanism as a general quantum effect originating from the resonant scattering.Combined with theoretical simulations,we further clarify the origin of the log-periodic oscillations and the DSI in the topological materials.This work evidences the universality of the DSI in the Dirac materials and provides indispensable information for a full understanding of this novel phenomenon.Huichao Wang Yanzhao Liu Yongjie Liu Chuanying Xi Junfeng Wang Jun Liu Yong Wang Liang Li Shu Ping Lau Mingliang Tian Jiaqiang Yan David Mandrus Ji-Yan Dai Haiwen Liu Xincheng Xie Jian Wang 2019National Science Review2019,6,5:1
20Near-infrared quantum cutting in Ho 3+ , Yb 3+ -codoped BaGdF 5 nanoparticles via first-and second-order energy transfers显示文摘Linna Guo Yuhua Wang Jia Zhang Yanzhao Wang Pengyu Dong 2012Nanoscale Research Letters2012,,1:1
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