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Search Results: 1 - 10 of 11832 matches for " Shuai Ding "
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A Judgment Approach for Forward Link Load Based on Virtual Channels
Ning Wu,Fen Ge,Shuai Ding
Lecture Notes in Engineering and Computer Science , 2009,
Multiple spreaders affect the indirect influence on Twitter
Xin Shuai,Ying Ding,Jerome Busemeyer
Computer Science , 2012,
Abstract: Most studies on social influence have focused on direct influence, while another interesting question can be raised as whether indirect influence exists between two users who're not directly connected in the network and what affects such influence. In addition, the theory of \emph{complex contagion} tells us that more spreaders will enhance the indirect influence between two users. Our observation of intensity of indirect influence, propagated by $n$ parallel spreaders and quantified by retweeting probability on Twitter, shows that complex contagion is validated globally but is violated locally. In other words, the retweeting probability increases non-monotonically with some local drops.
Spatial prisoner’s dilemma games with increasing size of the interaction neighborhood on regular lattices
Juan Wang,ChengYi Xia,YiLing Wang,Shuai Ding,JunQing Sun
Chinese Science Bulletin , 2012, DOI: 10.1007/s11434-011-4890-4
Abstract: We studied the evolution of cooperation in the prisoner’s dilemma game on a square lattice where the size of the interaction neighborhood is considered. Firstly, the effects of noise and the cost-to-benefit ratio on the maintenance of cooperation were investigated. The results indicate that the cooperation frequency depends on the noise and cost-to-benefit ratio: cooperation reaches a climax as noise increases, but it monotonously decreases and even vanishes with the ratio increasing. Furthermore, we investigated how the size of the interaction neighborhood affects the emergence of cooperation in detail. Our study demonstrates that cooperation is remarkably enhanced by an increase in the size of the interaction neighborhood. However, cooperation died out when the size of the interaction neighborhood became too large since the system was similar to the mean-field system. On this basis, a cluster-forming mechanism acting among cooperators was also explored, and it showed that the moderate range of the neighborhood size is beneficial for forming larger cooperative clusters. Finally, large-scale Monte Carlo simulations were carried out to visualize and interpret these phenomena explicitly.
Poly[[hepta-μ2-aqua-bis(μ2-pyrazine-2-carboxylato)dibarium] bis(pyrazine-2-carboxylate)]
Qi Shuai,Ke-Lian Ding,Fan Hu,Ping Yu
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811003023
Abstract: In the layered title coordination polymer, {[Ba2(C5H3N2O2)2(H2O)7](C5H3N2O2)2}n, the coordination geometries around the two independent BaII ions can be described as bicapped square-antiprismatic [BaNO9] arrangements. A two-dimensional polymeric framework with (6,3) topology can be observed in the ac plane, the nodes being provided by BaII ions and the connectors being N and O atoms belonging to pyrazine-2-carboxylate ligands and O atoms of bridging water molecules. Non-coordinating pyrazine-2-carboxylate ions are located between the polymeric layers in the crystal and are interconnected through extensive O—H...N,O hydrogen bonding.
Bis[(2-pyridyl)(2-pyridylamino)methanolato]manganese(III) nitrate
Shuai Ding,Congjun Xia,Yufei Ji,Zhiliang Liu
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811014371
Abstract: The MnIII atom in the title complex, [Mn(C11H10N3O)2]NO3, is coordinated by the two tridentate (2-pyridyl)(2-pyridylamino)methanolate ligands, forming a six-coordinate environment. The four pyridyl N atoms constitute the equatorial plane on which the manganese(III) ion lies; the coordination plane suffers a slight distortion as indicated by the average plane deviation of 0.058 . The methanolate O atoms occupy the axial positions. The coordination geometry is thus octahedral. In the title compound, the cations are linked by nitrate anions via N—H...O hydrogen bonds to form one-dimensional chains. Moreover, the one-dimensional structure is stabilized by intermolecular edge-to-face aromatic π–π interactions with a center-of-inversion at a distance of ca 4.634 .
Bis(μ-2-{[2-(1,3-benzothiazol-2-yl)hydrazinylidene]methyl}-6-methoxyphenolato)bis[dinitratodysprosium(III)] methanol disolvate
Xuebin Xu,Shuai Ding,Si Shen,Jinkui Tang
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811019118
Abstract: In the centrosymmetric dinuclear title compound, [Dy2(C15H12N3O2S)2(NO3)4]·2CH3OH, the two DyIII atoms are coordinated by two deprotonated 2-{[2-(1,3-benzothiazol-2-yl)hydrazinylidene]methyl}-6-methoxyphenol ligands and four nitrate ions, all of which are chelating. The crystal packing is stabilized by intermolecular N—H...O hydrogen bonds and weak O—H...O interactions, forming a two-dimensional network parallel to (010).
Enhancement of Time-Reversal Subwavelength Wireless Transmission Using Pulse Shaping
Shuai Ding,Rui Zang,Lianfeng Zou,Bingzhong Wang,Christophe Caloz
Physics , 2014, DOI: 10.1109/TAP.2015.2445414
Abstract: A novel time-reversal subwavelength transmission technique, based on pulse shaping circuits (PSCs), is proposed. Compared to previously reported approaches, this technique removes the need for complex or electrically large electromagnetic structures by generating channel diversity via pulse shaping instead of angular spectrum transformation. Moreover, the pulse shaping circuits (PSCs) are based on Radio Analog Signal Processing (R-ASP), and therefore do not suffer from the well-known issues of digital signal processing in ultrafast regimes. The proposed PSC time-reversal systems is mathematically shown to offer high channel discrimination under appropriate PSC design conditions, and is experimentally demonstrated for the case of two receivers.
Coupling Matrix Synthesis of Nonreciprocal Lossless Two-Port Networks using Gyrators and Inverters
Qingfeng Zhang,Toshiro Kodera,Shuai Ding,Christophe Caloz
Physics , 2014, DOI: 10.1109/TMTT.2015.2450733
Abstract: A coupling matrix technique is presented for the synthesis of nonreciprocal lossless two-port networks. This technique introduces complex inverters to build the nonreciprocal transversal network corresponding to the nonreciprocal coupling matrix. It subsequently transforms this matrix into canonical topologies through complex similarity transformations. The complex inverters in the final topology are transformed into real inverters and gyrators for implementation simplicity. A second-order example is then given to illustrate the proposed technique. Possible implementations of the gyrators involved in the final design are also discussed.
OpenHEC: A Framework for Application Programmers to Design FPGA-based Systems
Zhilei Chai,Zhibin Wang,Wenmin Yang,Shuai Ding,Yuanpu Zhang
Computer Science , 2014,
Abstract: Today, there is a trend to incorporate more intelligence (e.g., vision capabilities) into a wide range of devices, which makes high performance a necessity for computing systems. Furthermore, for embedded systems, low power consumption should be generally considered together with high computing performance. FPGAs, as programmable logic devices able to support different types of fine-grained parallelisms, their power and performance advantages were recognized widely. However, designing applications on FPGA-based systems is traditionally far from a task can be carried out by software programmers. Generally, hardware engineers and even system-level software engineers have more hardware/architectural knowledge but fewer algorithm and application knowledge. Thus, it is critical for computing systems to allow application-level programmers to realize their idea conveniently, which is popular in computing systems based on the general processor. In this paper, the OpenHEC (Open Framework for High-Efficiency Computing) framework is proposed to provide a design framework for application-level software programmers to use FPGA-based platforms. It frees users from hardware and architectural details to let them focus more on algorithms/applications. This framework was integrated with the commercial Xilinx ISE/Vivado to make it to be used immediately. After implementing a widely-used feature detection algorithm on OpenHEC from the perspective of software programmers, it shows this framework is applicable for application programmers with little hardware knowledge.
A Research on Dynamic System of Innovation and Development of Commerce Industry in Tongzhou District of Beijing  [PDF]
Shuai Liu
American Journal of Industrial and Business Management (AJIBM) , 2016, DOI: 10.4236/ajibm.2016.611100
Abstract: Commerce industry has the function of industry leader as a link between producers and consumers. In recent years, Tongzhou District, as the city’s vice center of Beijing City, has developed rapidly. However, there are still a lot of problems in the development of Tongzhou District’s commerce industry, and the research of the dynamic system for its innovative development plays an important role in solving these problems. This paper analyzes dynamic system of commerce industry’s innovation and development. All the researches which have done in this paper are meant to provide method to analyze dynamic system of commerce industry and make it better.
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