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采用Zigzag型煤焦表面模型，利用量子化学密度泛函理论研究了煤焦异相还原N2O的反应机理。首先分析了Zigzag和Armchair碳基模型的差异本质，然后通过热力学分析和动力学分析研究了煤焦异相还原N2O的反应机理，最后对比分析了Zigzag和Armchair两模型计算结果。研究表明，煤焦异相还原N2O的反应包括吸附、还原及脱附3个过程，N2的脱附过程是整个反应的决速步。煤焦异相还原N2O的反应...
Discrete-Time Chaotic-Map Truly Random Number Generators: Design, Implementation, and Variability Analysis of the Zigzag Map
Truly Random Number Generator Current-Mode Circuits Switched-Current Technique Variability
2012/6/21
In this paper, we introduce a novel discrete chaotic map named zigzag map that demonstrates excellent chaotic behaviors and can be utilized in Truly Random Number Generators (TRNGs). We comprehensivel...
Highly tunable spin-dependent electron transport through carbon atomic chains connecting two zigzag graphene nanoribbons
Highly tunable spin-dependent electron transport carbon atomic chains zigzag graphene nanoribbons
2012/2/27
Motivated by recent experiments of successfully carving out stable carbon atomic chains from graphene [Meyer et al. Nature (London) 454, 319 (2008); Jin et al. Phys. Rev. Lett. 102, 205501 (2009)] we ...
棒-棒二嵌段共聚物熔体的层状和Zigzag层状相结构的动力学演化过程
二嵌段共聚物 外场动力学 相结构
2012/11/12
将外场动力学方法应用于格子模型, 研究棒\|棒二嵌段共聚物熔体的层状和Zigzag层状相结构的动力学演化过程. 计算结果表明, 在层状和Zigag层状相结构的形成过程中出现了相同的局域中间结构。
锯齿形(zigzag)边缘石墨烯纳米周期性结构的研究取得新进展（图）
锯齿形 (zigzag)边缘 石墨烯纳米 周期性结构 新进展
2011/8/30
石墨烯由于其独特的狄拉克（Dirac）费米子、极高的载流子迁移率以及超强的力学性能，已成为凝聚态物理及材料科学等领域的研究热点。边缘结构在石墨烯纳米结构中扮演很重要的角色。例如，理论预言：具有锯齿形（zigzag）边缘结构的石墨烯纳米带具有半金属特性，三角形zigzag石墨烯纳米岛具有铁磁性等等。以前石墨烯纳米结构的制备方法，如碳纳米管裁剪法，纳米线掩模刻蚀法以及光刻法等，都不具备控制加工石墨烯边...
棒-棒二嵌段共聚物熔体的层状和Zigzag层状相结构的动力学演化过程
二嵌段共聚物 外场动力学 相结构
2012/11/12
将外场动力学方法应用于格子模型，研究棒\|棒二嵌段共聚物熔体的层状和Zigzag层状相结构的动力学演化过程。计算结果表明，在层状和Zigag层状相结构的形成过程中出现了相同的局域中间结构。
棒-棒二嵌段共聚物熔体的层状和Zigzag层状相结构的动力学演化过程
二嵌段共聚物 外场动力学 相结构
2012/11/13
将外场动力学方法应用于格子模型, 研究棒\|棒二嵌段共聚物熔体的层状和Zigzag层状相结构的动力学演化过程. 计算结果表明, 在层状和Zigag层状相结构的形成过程中出现了相同的局域中间结构.
Sensory Organ like Response of Zigzag Edge Graphene Nanoribbons
Sensory Organ Zigzag Edge Graphene Nanoribbons
2010/11/25
Using a continuum Dirac theory, we study the density and spin response of zigzag edge erminated
graphene ribbons subjected to edge potentials and Zeeman fields. Our analytical calculations of the den...
Edge stability, reconstruction, zero-energy states and magnetism in triangular graphene quantum dots with zigzag edges
Edge stability magnetism zigzag edges
2010/11/17
We present the results of ab-initio density functional theory based calculations of the stability and reconstruction of zigzag edges in triangular graphene quantum dots. We show that, while the recons...
The parity of specular Andreev reflection under mirror operation in zigzag graphene ribbon
parity of specular Andreev reflection mirror operation
2010/11/25
It is known that the parity of reflection amplitude can either be even or odd under the mirror
operation. Up to now, all the parities of reflection amplitude in the one-mode energy region are even un...
Edge stability, reconstruction, zero-energy states and magnetism in triangular graphene quantum dots with zigzag edges
Edge stability zero-energy states magnetism
2010/11/17
We present the results of ab-initio density functional theory based calculations of the stability and reconstruction of zigzag edges in triangular graphene quantum dots. We show that, while the recons...
电场对(4, 0)Zigzag模型单壁碳纳米管的影响
Single-walled carbon nanotube Parallel and perpendicular electric field Dipole moment Density functional theory B3LYP
2009/12/7
The structural and electronic properties of a (4, 0) zigzag single-walled carbon nanotube (SWCNT) under parallel and transverse electric fields with strengths of 0-1.4×10-2 a.u. were studied using the...
基于ZIGZAG的流媒体直播系统的研究和实现
应用层组播 P2P 流媒体
2009/4/17
分析了现有P2P流媒体系统存在的问题，研究了ZIGZAG系统控制拓扑和数据传输拓扑两方面的主要技术，设计并实现了一个单源的基于ZIGZAG模型的P2P流媒体在线直播系统P2P-Streaming。系统通过局域网运行测试，分析表明P2P-Streaming有效地降低了节点开销，具有很好的扩展性。
Mathematical Model of a Zigzag Sewing Machine with a Timing Belt Driven Hook
sewing machine zigzag modelling vibration.
2009/1/20
The mathematical model of a zigzag sewing machine with a timing belt driven hook is presented in this paper. The resonance behaviour of the machine is shown graphically. The model makes it possible to...
On Zigzag Functions and Related Objects in New Metric
Cryptography Zigzag functions Quorum systems
2009/1/4
In this paper we will investigate the properties of zigzag functions. The zigzag functions, introduced
in [2] and used for efficient oblivious transfer in [14] were later generalized to s-zigzag
fun...