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Search Results: 1 - 10 of 129438 matches for " Jia-Wei Chen "
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Existence of solutions and convergence analysis for a system of quasivariational inclusions in Banach spaces
Chen Jia-wei,Wan Zhongping
Journal of Inequalities and Applications , 2011,
Abstract: In order to unify some variational inequality problems, in this paper, a new system of generalized quasivariational inclusion (for short, (SGQVI)) is introduced. By using Banach contraction principle, some existence and uniqueness theorems of solutions for (SGQVI) are obtained in real Banach spaces. Two new iterative algorithms to find the common element of the solutions set for (SGQVI) and the fixed points set for Lipschitz mappings are proposed. Convergence theorems of these iterative algorithms are established under suitable conditions. Further, convergence rates of the convergence sequences are also proved in real Banach spaces. The main results in this paper extend and improve the corresponding results in the current literature. 2000 MSC: 47H04; 49J40.
Design of electron wave filters in monolayer graphene by tunable transmission gap
Xi Chen,Jia-Wei Tao
Physics , 2009, DOI: 10.1063/1.3168527
Abstract: We have investigated the transmission in monolayer graphene barrier at nonzero angle of incidence. Taking the influence of parallel wave vector into account, the transmission as the function of incidence energy has a gap due to the evanescent waves in two cases of Klein tunneling and classical motion. The modulation of the transmission gap by the incidence angle, the height, and width of potential barrier may lead to potential applications in graphene-based electronic devices.
A New System of Generalized Mixed Quasivariational Inclusions with Relaxed Cocoercive Operators and Applications
Zhongping Wan,Jia-Wei Chen,Hai Sun,Liuyang Yuan
Journal of Applied Mathematics , 2011, DOI: 10.1155/2011/961038
Abstract: A new system of generalized mixed quasivariational inclusions (for short, SGMQVI) with relaxed cocoercive operators, which develop some preexisting variational inequalities, is introduced and investigated in Banach spaces. Next, the existence and uniqueness of solutions to the problem (SGMQVI) are established in real Banach spaces. From fixed point perspective, we propose some new iterative algorithms for solving the system of generalized mixed quasivariational inclusion problem (SGMQVI). Moreover, strong convergence theorems of these iterative sequences generated by the corresponding algorithms are proved under suitable conditions. As an application, the strong convergence theorem for a class of bilevel variational inequalities is derived in Hilbert space. The main results in this paper develop, improve, and unify some well-known results in the literature. 1. Introduction Generalized mixed quasivariational inclusion problems, which are extensions of variational inequalities introduced by Stampacchia [1] in the early sixties, are among the most interesting and extensively investigated classes of mathematics problems and have many applications in the fields of optimization and control, abstract economics, electrical networks, game theory, auction, engineering science, and transportation equilibria (see, e.g., [2–5] and the references therein). For the past few decades, existence results and iterative algorithms for variational inequality and variational inclusion problems have been obtained (see, e.g., [6–14] and the references cited therein). Recently, some new problems, which are called to be the system of variational inequality and equilibrium problems, received many attentions. Ansari et al. [2] considered a system of vector variational inequalities and obtained its existence results. In [3], Pang stated that the traffic equilibrium problem, the spatial equilibrium problem, the Nash equilibrium, and the general equilibrium programming problem can be modeled as a system of variational inequalities. Verma [15] and J. K. Kim and D. S. Kim [16] investigated a system of nonlinear variational inequalities. Cho et al. [17] introduced and studied a new system of nonlinear variational inequalities in Hilbert spaces and obtained the existence and uniqueness properties of solutions for the system of nonlinear variational inequalities. In [18], Peng and Zhu introduced a new system of generalized mixed quasivariational inclusions involving -monotone operators. Very recently, Qin et al. [19] studied the approximation of solutions to a system of variational
Performance Comparison of Variable Step-Size NLMS Algorithms
Junghsi Lee,Jia-Wei Chen,Hsu-Chang Huang
Lecture Notes in Engineering and Computer Science , 2009,
Abstract:
Solving Bilevel Multiobjective Programming Problem by Elite Quantum Behaved Particle Swarm Optimization
Tao Zhang,Tiesong Hu,Jia-wei Chen,Zhongping Wan
Abstract and Applied Analysis , 2012, DOI: 10.1155/2012/102482
Abstract:
Goos-H?nchen-like shifts for Dirac fermions in monolayer graphene barrier
Xi Chen,Jia-Wei Tao,Yue Ban
Physics , 2010, DOI: 10.1140/epjb/e2010-10553-6
Abstract: We investigate the Goos-H\"{a}nchen-like shifts for Dirac fermions in transmission through a monolayer graphene barrier. The lateral shifts, as the functions of the barrier's width and the incidence angle, can be negative and positive in Klein tunneling and classical motion, respectively. Due to their relations to the transmission gap, the lateral shifts can be enhanced by the transmission resonances when the incidence angle is less than the critical angle for total reflection, while their magnitudes become only the order of Fermi wavelength when the incidence angle is larger than the critical angle. These tunable beam shifts can also be modulated by the height of potential barrier and the induced gap, which gives rise to the applications in graphene-based devices.
Memorizable Interactive Proof and Zero-Knowledge Proof Systems
Ning Chen,Jia-Wei Rong,
NingChen
,Jia-WeiRong

计算机科学技术学报 , 2004,
Abstract: Interactive proof and zero-knowledge proof systems are two important concepts in cryptography and complexity theory. In the past two decades, a great number of interactive proof and zero-knowledge proof protocols have been designed and applied in practice. In this paper, a simple memorizable zero-knowledge protocol is proposed for graph non-isomorphism problem, based on the memorizable interactive proof system, which is extended from the original definition of interactive proof and is more applicable in reality. This work was supported by the ministry of Science and Technology of China (Grant No.2001CCA03000), and the National Natural Science Foundation of China (Grant No.60273045). Ning Chen received his B.S. degree from Fudan University in 2001. Now he is a master candidate of Department of Computer Science, Fudan University. His research interests include computational complexity, computational cryptography, algorithm design and analysis. Jia-Wei Rong received her B.S. degree from Fudan University in 2002. Now she is a master candidate of Department of Computer Science, Fudan University. Her research interests include computational cryptography, machine learning, artificial intelligence.
Melena-associated regional portal hypertension caused by splenic arteriovenous fistula
Bin Chen,Cheng-Wei Tang,Chun-Le Zhang,Jia-Wei Cao
World Journal of Gastroenterology , 2012, DOI: 10.3748/wjg.v18.i16.1996
Abstract: Regional portal hypertension is a rare cause of upper gastrointestinal bleeding. We reported an extremely rare case in which regional portal hypertension was associated with both the splenic arteriovenous fistula and chronic pancreatitis. In June 2010, our patient, a 41-year-old man, was admitted to a local hospital due to a sudden melena and dizziness without haematemesis and jaundice. The splenic arteriovenous fistula in this patient was successfully occluded through transcatheter arterial embolization. At the 12-mo follow-up, our patient was in good condition.
Active Pneumatic Vibration Control by Using Pressure and Velocity Measurements and Adaptive Fuzzy Sliding-Mode Controller
Hung-Yi Chen,Jin-Wei Liang,Jia-Wei Wu
Sensors , 2013, DOI: 10.3390/s130708431
Abstract: This paper presents an intelligent control strategy to overcome nonlinear and time-varying characteristics of a diaphragm-type pneumatic vibration isolator (PVI) system. By combining an adaptive rule with fuzzy and sliding-mode control, the method has online learning ability when it faces the system’s nonlinear and time-varying behaviors during an active vibration control process. Since the proposed scheme has a simple structure, it is easy to implement. To validate the proposed scheme, a composite control which adopts both chamber pressure and payload velocity as feedback signal is implemented. During experimental investigations, sinusoidal excitation at resonance and random-like signal are input on a floor base to simulate ground vibration. Performances obtained from the proposed scheme are compared with those obtained from passive system and PID scheme to illustrate the effectiveness of the proposed intelligent control.
Field-induced p-wave Superconductivity in Mesoscopic Systems
Jia-Wei Huo,Wei-Qiang Chen,S. Raghu,Fu-Chun Zhang
Physics , 2011, DOI: 10.1103/PhysRevLett.108.257002
Abstract: By using Bogoliubov-de Gennes (BdG) equations, we study superconducting (SC) states in a quasi 2-dimensional system of radius $R$. It is shown that no vortices exist in s-wave SC samples with $R
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