期刊文献+
任意字段
题名或关键词
题名
关键词
摘要
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息
共找到953篇文章
< 1 2 … 48 >
每页显示 20 50 100
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
显示方式：
Full-color 3D neural holography via stochastic physically consistent light field 认领 引用
1
作者 Jiaqi Li Yanan Zhang +3 位作者 Hebin Chang Tianyou Li Xing Fu Xingpeng Yan 《Advanced Photonics》 SCIE EI CAS CSCD 2026年第3期125-140,共16页
Recent advancements in computer-generated holography have demonstrated that integrating neural networks can significantly enhance the speed and quality of multidepth hologram generation for complex 3D scenes.The inher... Recent advancements in computer-generated holography have demonstrated that integrating neural networks can significantly enhance the speed and quality of multidepth hologram generation for complex 3D scenes.The inherent ill-conditioned nature of the mapping between diffraction fields and holograms poses a challenge,which neural networks adeptly address by nonlinearly approximating diffraction field patterns to rapidly generate holograms that meet stringent constraints.In particular,the lack of physical interpretability in phase-to-hologram mappings,the scarcity of high-quality 3D datasets,and the inefficiency of current learning strategies collectively hinder the reconstruction quality and broader applicability of neural holography.Herein,we present a stochastic physically consistent light field to address the aforementioned limitations.As revealed by mutual information analysis,our stochastic method decouples intensity-depth correlations.Benefiting from the stochastically generated spectrum-tunable intensity information,uniformly distributed depth information,and physically consistent phase,the neural network can predict ultra-multidepth,extended-depth-of-field,and full-color holograms trained on limited-depth,narrow-depth-of-field,and singlewavelength data without pre-existing training datasets.The resulting neural network model,comprising merely 712 parameters,achieves 4K full-color holographic encoding with 256 depth layers at a frame rate of 52.9 frames per second,yielding an average peak signal-to-noise ratio of 34.91 dB. 展开更多
关键词 computer-generated holography multidepth 3D neural holography physically consistent light field dataset-free learning
Hash-Based Signature Authentication for Scalable and Security-Consistent QKD Post-Processing 认领 引用
2
作者 Chaokun Wang Sijiang Xie +1 位作者 Yalong Yan Hong Zhao 《Computers, Materials & Continua》 SCIE EI 2026年第7期1311-1342,共32页
Quantum Key Distribution(QKD)ensures secure key establishment through the principles of quantum mechanics;however,its effectiveness in practice hinges on dependable identity verification via classical channels during ... Quantum Key Distribution(QKD)ensures secure key establishment through the principles of quantum mechanics;however,its effectiveness in practice hinges on dependable identity verification via classical channels during the post-processing phase.Current QKD implementations typically depend on pre-existing symmetric-key authentication,which suffers from limited scalability and complicated key management in extensive networks.Authentication methods utilizing post-quantum cryptography(PQC)signatures,based on complex mathematical assumptions,introduce extra and uncertain security dependencies,potentially compromising the security model integrity that QKD aims to maintain.This paper explores the application of hash-based signatures(HBS)for identity verification in the post-processing of QKD.HBS methods derive their security from cryptographic hash functions,which are integral to QKD protocols,allowing for scalable public-key-style authentication without the need for new computational assumptions.A detailed authentication framework is proposed,incorporating HBS-based verification into all essential phases of QKD post-processing,such as mutual certificate validation,basis sifting,parameter estimation,error correction verification,and privacy amplification.Security assessments indicate that the suggested framework maintains the security model integrity of QKD by relying cryptographically solely on the collision resistance of hash functions—without introducing new computational assumptions.At the system deployment level,it adheres to standard PKI trust assumptions which are necessary for public-key-style authentication and consistent with practical QKD network operations.Additionally,system-level evaluations affirm the scalability and practical applicability of HBS-based authentication,while also addressing the operational trade-offs among various HBS approaches in realistic QKD deployment contexts. 展开更多
关键词 Quantum key distribution identity authentication hash-based signatures post-processing security security-model consistency post-quantum cryptography
暂未订购 下载PDF
Improving Path Tracking Performance of 4WIS Vehicles via Constraint-Oriented Consistent Coordinated Steering 认领 引用
3
作者 Zeyu Yang Yusheng Dai +3 位作者 Manjiang Hu Yougang Bian Qingjia Cui Yang Li 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2025年第5期176-190,共15页
Research has shown that when vehicles follow the Ackerman steering principle(ASP),the tire wear can be reduced and the path tracking performance can be improved.However,in the case of four-wheel independent steering(4... Research has shown that when vehicles follow the Ackerman steering principle(ASP),the tire wear can be reduced and the path tracking performance can be improved.However,in the case of four-wheel independent steering(4WIS)vehicles,the steering systems of the four wheels are relatively independent,and there are differences and uncertainties in individual steering dynamics,which lead to challenges for all four wheels in simultaneously satisfying the ASP and may deteriorate the vehicle path tracking performance.In response to this problem,this paper introduces a four-wheel consistent coordinated steering control for 4WIS vehicles.The algorithm innovatively reconfigures the Ackerman steering relationships as coupling constraints among the wheels,and utilizes the constraint-following method to design controller.The controller achieves uniform boundedness(UB)and uniform ultimate boundedness(UUB)of ASP constraint error.The Carsim/Simulink joint simulation results demonstrate that the algorithm guarantees the approximate satisfaction of ASP in both the transient and steady-state of the vehicle path tracking.Also,it significantly improves the path tracking performance. 展开更多
关键词 Four-wheel independent steering Path tracking Constraint-following control Consistent coordinated control Ackerman steering principle Uncertainties
暂未订购 下载PDF
Consistent fusion for distributed multi-rate multi-sensor linear systems with unknown correlated measurement noises 认领 引用
4
作者 Peng WANG Hongbing JI +1 位作者 Yongquan ZHANG Zhigang ZHU 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2025年第7期389-407,共19页
This study investigates a consistent fusion algorithm for distributed multi-rate multi-sensor systems operating in feedback-memory configurations, where each sensor's sampling period is uniform and an integer mult... This study investigates a consistent fusion algorithm for distributed multi-rate multi-sensor systems operating in feedback-memory configurations, where each sensor's sampling period is uniform and an integer multiple of the state update period. The focus is on scenarios where the correlations among Measurement Noises(MNs) from different sensors are unknown. Firstly, a non-augmented local estimator that applies to sampling cases is designed to provide unbiased Local Estimates(LEs) at the fusion points. Subsequently, a measurement-equivalent approach is then developed to parameterize the correlation structure between LEs and reformulate LEs into a unified form, thereby constraining the correlations arising from MNs to an admissible range. Simultaneously, a family of upper bounds on the joint error covariance matrix of LEs is derived based on the constrained correlations, avoiding the need to calculate the exact error cross-covariance matrix of LEs. Finally, a sequential fusion estimator is proposed in the sense of Weighted Minimum Mean Square Error(WMMSE), and it is proven to be unbiased, consistent, and more accurate than the well-known covariance intersection method. Simulation results illustrate the effectiveness of the proposed algorithm by highlighting improvements in consistency and accuracy. 展开更多
关键词 Distributed multi-rate multisensor system Sensor data fusion Correlated measurement noise Equivalent measurement Consistent method
暂未订购 下载PDF
A variationally consistent nodal integration for cubic serendipity finite elements with optimal convergence in explicit transient heat conduction analysis 认领 引用
5
作者 Songyang Hou Zhiwei Lin +1 位作者 Zhenyu Wu Dongdong Wang 《Theoretical & Applied Mechanics Letters》 EI CAS CSCD 2025年第6期597-609,共13页
The 13-node quadrilateral and 39-node hexahedral cubic serendipity elements produce nodally integrated positive-definite lumped heat capacity matrices in higher-order finite element analysis.However,these elements dis... The 13-node quadrilateral and 39-node hexahedral cubic serendipity elements produce nodally integrated positive-definite lumped heat capacity matrices in higher-order finite element analysis.However,these elements display severe convergence deterioration in explicit transient heat conduction analysis with lumped heat ca-pacity matrices.This convergence decay is due to the violation of variational integration consistency by the standard Galerkin formulation with lumped heat capacity matrices.This issue is resolved by introducing the boundary-enhanced Galerkin weak form that incorporates the elemental boundary contribution in the discrete finite element formulation.Subsequently,it is theoretically proven that a direct nodal integration identically fulfills the variational integration consistency in the context of the boundary-enhanced Galerkin weak form.The proposed variationally consistent nodal integration therefore enables optimal convergence for explicit transient heat conduction analysis with lumped heat capacity matrices.The efficacy of the proposed variationally con-sistent nodal integration formulation for the 13-node quadrilateral and 39-node hexahedral cubic elements is thoroughly demonstrated via numerical examples. 展开更多
关键词 Cubic serendipity element Heat conduction analysis Nodal integration Lumped heat capacity matrix Variational integration consistency Optimal convergence
暂未订购 下载PDF
Separation work analysis of cohesive law and consistently coupled cohesive law 认领 引用
6
作者 何铭华 辛克贵 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2011年第11期1437-1446,共10页
An appropriate coupled cohesive law for predicting the mixed mode failure is established by combining normal separation and tangential separation of surfaces in the cohesive zone model （CZM） and the cohesive element... An appropriate coupled cohesive law for predicting the mixed mode failure is established by combining normal separation and tangential separation of surfaces in the cohesive zone model （CZM） and the cohesive element method. The Xu-Needleman exponential cohesive law with the fully shear failure mechanism is one of the most popular models. Based on the proposed consistently coupled rule/principle, the Xu-Needleman law with the fully shear failure mechanism is proved to be a non-consistently coupled cohesive law by analyzing the surface separation work. It is shown that the Xu-Needleman law is only valid in the mixed mode fracture when the normal separation work equals the tangential separation work. Based on the consistently coupled principle and the modification of the Xu-Needleman law, a consistently coupled cohesive （CCC） law is given. It is shown that the proposed CCC law has already overcome the non-consistency defect of the Xu-Needleman law with great promise in mixed mode analyses. 展开更多
关键词 cohesive element cohesive zone model （CZM） cohesive law separation work analysis consistently coupled rule/principle consistently Coupled cohesive （CCC） law non-consistently coupled cohesive law
暂未订购 下载PDF
Physically-consistent-WGAN based small sample fault diagnosis for industrial processes 认领 引用 被引量：1
7
作者 Siyu Tang Hongbo Shi +2 位作者 Bing Song Yang Tao Shuai Tan 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2025年第2期163-174,共12页
In real industrial scenarios, equipment cannot be operated in a faulty state for a long time, resulting in a very limited number of available fault samples, and the method of data augmentation using generative adversa... In real industrial scenarios, equipment cannot be operated in a faulty state for a long time, resulting in a very limited number of available fault samples, and the method of data augmentation using generative adversarial networks for smallsample data has achieved a wide range of applications. However, the current generative adversarial networks applied in industrial processes do not impose realistic physical constraints on the generation of data, resulting in the generation of data that do not have realistic physical consistency. To address this problem, this paper proposes a physical consistency-based WGAN, designs a loss function containing physical constraints for industrial processes, and validates the effectiveness of the method using a common dataset in the field of industrial process fault diagnosis. The experimental results show that the proposed method not only makes the generated data consistent with the physical constraints of the industrial process, but also has better fault diagnosis performance than the existing GAN-based methods. 展开更多
关键词 Chemical processes Fault diagnosis Physical consistency Generative adversarial networks Small sample data
暂未订购 下载PDF
The construction and combined operation for fuzzy consistent matrixes 认领 引用 被引量：2
8
作者 姚敏 沈斌 骆建华 《Journal of Zhejiang University-SCIENCE A》 CAS 2005年第1期27-31,共5页
Fuzziness is one of the general characteristics of human thinking and objective things. Introducing fuzzy techniques into decision-making yields very good results. Fuzzy consistent matrix has many excellent characteri... Fuzziness is one of the general characteristics of human thinking and objective things. Introducing fuzzy techniques into decision-making yields very good results. Fuzzy consistent matrix has many excellent characteristics, especially cen- ter-division transitivity conforming to the reality of the human thinking process in decision-making. This paper presents a new approach for creating fuzzy consistent matrix from mutual supplementary matrix in fuzzy decision-making. At the same time, based on the distance between individual fuzzy consistent matrix and average fuzzy consistent matrix, a kind of combined opera- tion for several fuzzy consistent matrixes is presented which reflects most opinions of experienced experts. Finally, a practical example shows its flexibility and practicability further. 展开更多
关键词 Fuzzy consistent matrix Fuzzy consistent relation Compound operation
暂未订购 下载PDF
Modeling texture evolution during rolling process of AZ31 magnesium alloy with elasto-plastic self consistent model 认领 引用 被引量：6
9
作者 黄诗尧 张少睿 +1 位作者 李大永 彭颖红 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第6期1348-1354,共7页
To gain a better understanding about texture evolution during rolling process of AZ31 alloy, polycrystalline plasticity model was implemented into the explicit FE package, ABAQUS/Explicit by writing a user subroutine ... To gain a better understanding about texture evolution during rolling process of AZ31 alloy, polycrystalline plasticity model was implemented into the explicit FE package, ABAQUS/Explicit by writing a user subroutine VUMAT. For each individual grain in the polycrystalline aggregate, the rate dependent model was adopted to calculate the plastic shear strain increment in combination with the Voce hardening law to describe the hardening response, the lattice reorientation caused by slip and twinning were calculated separately due to their different mechanisms. The elasto-plastic self consistent （EPSC） model was employed to relate the response of individual grain to the response of the polycrystalline aggregate. Rolling processes of AZ31 sheet and as-cast AZ31 alloy were simulated respectively. The predicted texture distributions are in aualitative a^reement with experimental results. 展开更多
关键词 AZ31 alloy texture rolling process elasto-plastic self consistent （EPSC） model
暂未订购 下载PDF
A lumped mass finite element formulation with consistent nodal quadrature for improved frequency analysis of wave equations 认领 引用 被引量：3
10
作者 Xiwei Li Hanjie Zhang Dongdong Wang 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2022年第5期97-112,I0003,共16页
A lumped mass finite element formulation with consistent nodal quadrature is presented for improved frequency analysis of wave equations with particular reference to the Lagrangian elements with Lobatto nodes.For the ... A lumped mass finite element formulation with consistent nodal quadrature is presented for improved frequency analysis of wave equations with particular reference to the Lagrangian elements with Lobatto nodes.For the Lagrangian Lobatto elements,a lumped mass matrix can be conveniently constructed by employing the nodal quadrature rule that takes the Lobatto nodes as integration points.In the conventional finite element analysis,this nodal quadrature-based lumped mass matrix is usually accompanied by the stiffness matrix computed via the Gauss quadrature.In this work,it is shown that this combination is not optimal regarding the frequency accuracy of finite element analysis of wave equations.To elevate the frequency accuracy,in addition to the lumped mass matrix formulated by the nodal quadrature,a frequency accuracy measure is established as a function of the quadrature rule used in the stiffness matrix integration.This accuracy measure discloses that the frequency accuracy can be optimized if both lumped mass and stiffness matrices are simultaneously computed by the same nodal quadrature rule.These theoretical results are well demonstrated by two-and three-dimensional numerical examples,which clearly show that the proposed consistent nodal quadrature formulation yields much higher frequency accuracy than the conventional finite element analysis with nodal quadrature-based lumped mass and Gauss quadrature-based stiffness matrices for wave equations. 展开更多
关键词 Lobatto element Wave equation Frequency accuracy Lumped mass matrix Consistent nodal quadrature
暂未订购 下载PDF
Cross-Domain Authentication Scheme Based on Blockchain and Consistent Hash Algorithm for System-Wide Information Management 认领 引用 被引量：2
11
作者 Lizhe Zhang Yongqiang Huang +1 位作者 Jia Nie Kenian Wang 《Computers, Materials & Continua》 SCIE EI 2023年第11期1467-1488,共22页
System-wide information management(SWIM)is a complex distributed information transfer and sharing system for the next generation of Air Transportation System(ATS).In response to the growing volume of civil aviation ai... System-wide information management(SWIM)is a complex distributed information transfer and sharing system for the next generation of Air Transportation System(ATS).In response to the growing volume of civil aviation air operations,users accessing different authentication domains in the SWIM system have problems with the validity,security,and privacy of SWIM-shared data.In order to solve these problems,this paper proposes a SWIM crossdomain authentication scheme based on a consistent hashing algorithm on consortium blockchain and designs a blockchain certificate format for SWIM cross-domain authentication.The scheme uses a consistent hash algorithm with virtual nodes in combination with a cluster of authentication centers in the SWIM consortium blockchain architecture to synchronize the user’s authentication mapping relationships between authentication domains.The virtual authentication nodes are mapped separately using different services provided by SWIM to guarantee the partitioning of the consistent hash ring on the consortium blockchain.According to the dynamic change of user’s authentication requests,the nodes of virtual service authentication can be added and deleted to realize the dynamic load balancing of cross-domain authentication of different services.Security analysis shows that this protocol can resist network attacks such as man-in-the-middle attacks,replay attacks,and Sybil attacks.Experiments show that this scheme can reduce the redundant authentication operations of identity information and solve the problems of traditional cross-domain authentication with single-point collapse,difficulty in expansion,and uneven load.At the same time,it has better security of information storage and can realize the cross-domain authentication requirements of SWIM users with low communication costs and system overhead.KEYWORDS System-wide information management(SWIM);consortium blockchain;consistent hash;cross-domain authentication;load balancing. 展开更多
关键词 System-wide information management(SWIM) consortium blockchain consistent hash cross-domain authentication load balancing
暂未订购 下载PDF
Condensed hyperelements method of non-vertical consistent boundaries for wave propagation analysis in irregular media 认领 引用 被引量：1
12
作者 Dorafshan S. Behnamfar F. +1 位作者 Khamesipour A. Motosaka M. 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2013年第4期547-559,共13页
The study of wave propagation in finite/infinite media has many applications in geotechnical and structural earthquake engineering and has been a focus of research for the past few decades. This paper presents an anal... The study of wave propagation in finite/infinite media has many applications in geotechnical and structural earthquake engineering and has been a focus of research for the past few decades. This paper presents an analysis of 2D anti- plane problems （Love waves） and 2D in-plane problems （Rayleigh waves） in the frequency domain in media consisting of a near-field irregular and a far-field regular part. The near field part may contain structures and its boundaries with the far-field can be of any shape. In this study, the irregular boundaries of the near-field are treated as consistent boundaries, extending the concept of Lysmer＇s vertical consistent boundaries. The presented technique is called the Condensed Hyperelements Method （CHM）. In this method, the irregular boundary is limited to a vertical boundary at each end that is a consistent boundary at the far-field side. Between the two ends, the medium is discretized with hyperelements. Using static condensation, the stiffness matrix of the far-field is derived for the nodes on the irregular boundary. Examples of the application of the CHM illustrate its excellent accuracy and efficiency. 展开更多
关键词 irregular media non-vertical consistent boundary seismic waves thin layer method condensed hyperelementmethod （CHM）
暂未订购 下载PDF
Consistent Riccati expansion solvability,symmetries,and analytic solutions of a forced variable-coefficient extended Korteveg-de Vries equation in fluid dynamics of internal solitary waves 认领 引用 被引量：1
13
作者 Ping Liu Bing Huang +1 位作者 Bo Ren Jian-Rong Yang 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第8期198-205,共8页
We study a forced variable-coefficient extended Korteweg-de Vries(KdV)equation in fluid dynamics with respect to internal solitary wave.Bäcklund transformations of the forced variable-coefficient extended KdV equ... We study a forced variable-coefficient extended Korteweg-de Vries(KdV)equation in fluid dynamics with respect to internal solitary wave.Bäcklund transformations of the forced variable-coefficient extended KdV equation are demonstrated with the help of truncated Painlevéexpansion.When the variable coefficients are time-periodic,the wave function evolves periodically over time.Symmetry calculation shows that the forced variable-coefficient extended KdV equation is invariant under the Galilean transformations and the scaling transformations.One-parameter group transformations and one-parameter subgroup invariant solutions are presented.Cnoidal wave solutions and solitary wave solutions of the forced variable-coefficient extended KdV equation are obtained by means of function expansion method.The consistent Riccati expansion(CRE)solvability of the forced variable-coefficient extended KdV equation is proved by means of CRE.Interaction phenomenon between cnoidal waves and solitary waves can be observed.Besides,the interaction waveform changes with the parameters.When the variable parameters are functions of time,the interaction waveform will be not regular and smooth. 展开更多
关键词 forced variable-coefficient extended KdV equation consistent Riccati expansion analytic solution interaction wave solution
暂未订购 下载PDF
consistent Riccati expansion fractional partial differential equation Riccati equation modified Riemann–Liouville fractional derivative exact solution 认领 引用 被引量：6
14
作者 黄晴 王丽真 左苏丽 《Communications in Theoretical Physics》 SCIE CAS CSCD 2016年第2期177-184,共8页
In this paper, a consistent Riccati expansion method is developed to solve nonlinear fractional partial differential equations involving Jumarie＇s modified Riemann–Liouville derivative. The efficiency and power of t... In this paper, a consistent Riccati expansion method is developed to solve nonlinear fractional partial differential equations involving Jumarie＇s modified Riemann–Liouville derivative. The efficiency and power of this approach are demonstrated by applying it successfully to some important fractional differential equations, namely, the time fractional Burgers, fractional Sawada–Kotera, and fractional coupled mKdV equation. A variety of new exact solutions to these equations under study are constructed. 展开更多
关键词 Consistent Riccati Expansion Method and Its Applications to Nonlinear Fractional Partial Differential Equations
暂未订购 下载PDF
Consistent CMT solutions from Harvard University before great earthquakes in Kurile Islands and its significance for earthquake prediction 认领 引用 被引量：1
15
作者 王俊国 刁桂苓 《Acta Seismologica Sinica(English Edition)》 2005年第2期189-195,共7页
In the paper, we use the Central Moment Tensor (CMT) solution acquired by Harvard Univ. for the earthquakes occurred in Kurile Islands to analyze the consistent focal mechanism in the area and propose the idea of maki... In the paper, we use the Central Moment Tensor (CMT) solution acquired by Harvard Univ. for the earthquakes occurred in Kurile Islands to analyze the consistent focal mechanism in the area and propose the idea of making earthquake prediction based on the consistent parameter a of focal mechanism and stress field. The results from the study indicate that before Mw greater than or equal 7.5 earthquakes, the consistent parameter a decreases, which starts about 10-110 days and ends about 30-2 days before the great earthquakes. Although the phenomenon is not totally the same for individual earthquake, the difference is not large. Certainly, the phenomenon should be tested by time for its reliability. However, it should not be random that the focal mechanism of Mw greater than or equal 5.3 earthquakes are consistent successively with the stress field in an area of several hundreds kilometers in length. It should be a phenomenon of predictive significance. When the accumulated earthquake examples are sufficient, uniform judgment criteria and prediction principles can be stipulated then. 展开更多
关键词 Kurile Islands area CMT solution consistent parameter predictive significance
暂未订购 下载PDF
Backlund transformations, consistent Riccati expansion solvability, and soliton-cnoidal interaction wave solutions of Kadomtsev-Petviashvili equation 认领 引用
16
作者 Ping Liu Jie Cheng +1 位作者 Bo Ren Jian-Rong Yang 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第2期91-99,共9页
The famous Kadomtsev-Petviashvili(KP)equation 1 s a classical equation In soliton tneory.A Backlund transformation between the KP equation and the Schwarzian KP equation is demonstrated by means of the truncated Painl... The famous Kadomtsev-Petviashvili(KP)equation 1 s a classical equation In soliton tneory.A Backlund transformation between the KP equation and the Schwarzian KP equation is demonstrated by means of the truncated Painlev6 expansion in this paper.One-parameter group transformations and one-parameter subgroup-invariant solutions for the extended KP equation are obtained.The consistent Riccati expansion(CRE) solvability of the KP equation is proved.Some interaction structures between soliton-cnoidal waves are obtained by CRE and several evolution graphs and density graphs are plotted. 展开更多
关键词 Kadomtsev-Petviashvili(KP)equation consistent Riccati expansion symmetry Backlund transformation interaction solution
暂未订购 下载PDF
Development of Precise Geoid Model for the Establishment of Consistent Height System in Geoga Grand Bridge Construction Area 认领 引用
17
作者 Dong-Ha LEE Hong-Sic YUN He HUANG 《China Ocean Engineering》 SCIE EI 2009年第4期679-694,共16页
The national benchmarks on islands were mostly established by trigonometric leveling in Korea.This method results in inaccuracy,which is a serious problem in Geoga Grand Bridge construction work that tried to link the... The national benchmarks on islands were mostly established by trigonometric leveling in Korea.This method results in inaccuracy,which is a serious problem in Geoga Grand Bridge construction work that tried to link the mainland and the islands.The Geoga Grand Bridge(Pusan-Geoje fixed link project)was selected as the study area,a huge construction work in Korea that will connect the mainland(Pnsan)and an island(Gecje island).However,the orthometric heights issued at benchmarks(JINH and GOFJ)were not consistent,because they did not refer to the same zero point,which would make the linking of the sections problematic.This paper introduces the precise local geoidas a vertical datum for the construction area in order to establish a consistent height system.To determine the precise local geoid for the construction area,we firstly developed a precise gravimetric geoid for Korea and its adjoining seas as a whole.This gravimetric geoid was developed by use of all available gravity data,including surface and satellite data on land and on the ocean.The gravimetrie gecid was computed by spherical fast fourier transform with modified Stokes'kernels.The remove-restore technique was used to eliminate the terrain effects by use of the RTM reduction and to determine the residual geoid by combining the GGM02S/EGM96 geopotential model,free-air gravity anomalies and high-resolutinn DEM data.Finally,the gravimetric model was fitted to the geoid heights obtained from GPS and tide observations(Ncps/Tiae)by least square coUocatian,to provide the final GPS-consistent local precise geoid model.The post-fit error(std.dev.)of the final geoid to the NetS/Tide derived from GPS and tide observations was±2.2 cm for the construction area.We solved the height inconsistency problem by calculating the orthometric height of the benchmarks and the cnntrol points using the final geoid model.Also,the highly accurate orthometric height was estimated through the GPS/leveling technique by applying the developed local precise geoid.Therefore,the precise local geoid is expected to improve the quality of the construction procedure of the Geoga Grand Bridge. 展开更多
关键词 precise local geoid consistent height system gravity observations GPS!Tide observations least squares fitting
暂未订购 下载PDF
Probability-consistent earthquakes and probability-consistent conservative earthquakes 认领 引用 被引量：1
18
作者 JIAN WEN SHEN CHANG QING CAI Shanghai Seismological Bureau, Shanghai 200062, China 《Acta Seismologica Sinica(English Edition)》 1998年第6期56-63,共8页
It is pointed out in this paper that the concept of scenario earthquake, expectant earthquake or proposed earthquake suggested by Kameda Nojima (1988) is not probability consistent due to unfit understanding for the a... It is pointed out in this paper that the concept of scenario earthquake, expectant earthquake or proposed earthquake suggested by Kameda Nojima (1988) is not probability consistent due to unfit understanding for the aseismic design standard of probabilistic method. The corresponding concept proposed by QI FENG LUO meets the meaning of probability consistent, but it is still in a meaning of average so the result is not good enough. On the basis of above analysis, a concept of probability consistent conservative earthquakes is suggested. And a new method selecting aseismic objective earthquake with physical meaning is proposed on the basis of probabilistic method. After seismic hazard is analysed by certain control parameters, such as peak acceleration, we can determine the aseismic standard according to certain probabilistic level. Based on the attenuation law and the potential sources, we can find out some earthquakes or their combinations of magnitudes and distances. Such earthquakes or combinations are probability consistent for this control parameter. Based on above parameter, we suggest considering the destructive effects of other parameters (such as response spectrum), and selecting conservative earthquakes to replace the average earthquake and meet the requirements of aseismic design better. 展开更多
关键词 seismic hazard analysis probability consistent scenario earthquakes expectant earthquakes
暂未订购 下载PDF
Painleve Integrability, Consistent Riccati Expansion Solvability and Interaction Solution for the Coupled mKdV-BLMP System 认领 引用
19
作者 陈俊超 马正义 胡亚红 《Chinese Physics Letters》 SCIE EI CAS CSCD 2017年第1期1-5,共5页
The integrability of the coupled, modified KdV equation and the potential Boiti-Leon-Manna-Pempinelli (mKdV-BLMP) system is investigated using the Painlevé analysis approach. It is shown that this coupled system ... The integrability of the coupled, modified KdV equation and the potential Boiti-Leon-Manna-Pempinelli (mKdV-BLMP) system is investigated using the Painlevé analysis approach. It is shown that this coupled system possesses the Painlevé property in both the principal and secondary branches. Then, the consistent Riccati expansion (CRE) method is applied to the coupled mKdV-BLMP system. As a result, it is CRE solvable for the principal branch while non-CRE solvable for the secondary branch. Finally, starting from the last consistent differential equation in the CRE solvable case, soliton, multiple resonant soliton solutions and soliton-cnoidal wave interaction solutions are constructed explicitly. 展开更多
关键词 KdV Painleve Integrability Consistent Riccati Expansion Solvability and Interaction Solution for the Coupled mKdV-BLMP System
暂未订购 下载PDF
A Kind of Multi-party Non-repudiation Protocol with Consistent Evidence 认领 引用
20
作者 Liu Dongmei Qing Sihan 《China Communications》 SCIE 2009年第4期88-96,共9页
With development of electronic com-merce,non-repudiation protocol as the basal component of non-repudiation service has done more and more important functions.Comparing with lots of work on two-party non-repudiation,t... With development of electronic com-merce,non-repudiation protocol as the basal component of non-repudiation service has done more and more important functions.Comparing with lots of work on two-party non-repudiation,there are less work on multi-party non-repudiation protocol.Multi-party protocol is more complex and facing more challenge of collusion attack.In this paper we give a kind of multi-party non-repudiation protocol based on off-line TTP with consistent evidence.Consistent evidence is a property that can not only simplify the process of disputation resolving,but also make the service more friendly to users,which means that whether or not TTP involves,evidences participants obtained are consistent.In the meanwhile we analyze the collusion attack that multi-party protocol facing,our protocol can prevent collusion attack. 展开更多
关键词 multi-party fair non-repudiation protocol consistent evidence collusion attack freehess fairness
暂未订购 下载PDF
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
上一页 1 2 … 48 下一页 到第 页
在线咨询 使用帮助 返回顶部 意见反馈