搜索结果: 121-135 共查到“工学 MESH”相关记录144条 . 查询时间(0.156 秒)
宽带卫星Mesh网多址接入信道预测分配方案研究
宽带卫星Mesh网 动态分配多址接入 分布式控制
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2009/4/27
该文针对具有网状(Mesh)拓扑结构的宽带卫星通信网，研究了分布式控制多址接入信道分配策略。提出了一种基于自相似业务流量混沌预测的混合动态分配方案。利用OPNET软件建立了仿真系统，研究比较了信道分配周期、信道负载以及业务流自相似程度对几种方案性能的影响。仿真结果表明，对于采用地球同步轨道(GEO)卫星、低轨(LEO)和中轨(MEO)卫星星座的宽带卫星Mesh网，所提出方案在高信道负载条件下都具有...
三角网格模型变形设计（Innovative Deformation Design of Triangular Mesh Model）
三角网格模型 参考曲面 三角Bézier曲面 光顺处理 变形设计
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2010/4/1
提出了一种三角网格模型变形算法，采用最小二乘法求解三角网格模型变形设计的参考曲面，将网格顶点向参考曲面投影，建立网格顶点与投影点间的映射关系，通过调整参考曲面控制顶点，根据投影点位移量调整网格顶点坐标，采用三角Bézier曲面理论进行网格模型光顺处理，实例证明该方法可准确控制模型形状，有效提高三角网格模型的光顺性及变形设计效率。 A design algorithm of a triangular...
Shape and Size Optimization of Bottom Part of Ship Structure by Independent Mesh-subdivision Technique with Aide of Multiple Point Constraint
Ship Structure Independent Mesh-subdivision Technique Multiple Point Constraint
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2009/3/26
A structure optimization for the initial design of ship is under consideration in this paper. A bulk career is selected for the object of the optimization. Both the shapes and the plate thicknesses ...
Process of Warp Knitting Mesh for Hernia Repair and its Mechanical Properties
hernia warp knitting medical textile mechanical property
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2009/2/9
Polypropylene monofilament is selected to fabricate the mesh used for hernia repair, and the mesh is warp knitted on a Tricot machine with a compound needle (gauge E 18); an atlas structure is used. T...
通用可组合安全的Mesh网络认证协议
Mesh网络 通用可组合 认证协议
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2009/1/22
无线Mesh网络的现有认证协议不支持双向802.1X的认证端口开放．基于密钥交换协议交换,利用“通用可组合”安全模型的组合特性与信任传递技术，在应答消息中安全结合反向认证信息，实现了满足Mesh网络双向认证需求的认证协议，不仅具有可证明的安全性，且通信开销较原协议降低60％以上．
THE SECOND ORDER MANIFOLD METHOD WITH SIX NODE TRIANGLE MESH
manifold method second-order stress distribution large deformation
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2009/1/5
The manifold method is a recently developed numerical procedure. Based on the original first-order Manifold Method, the second-order one together with corresponding computational code is developed in...
A Distributed Topology Control Algorithm to Conserve Energy in Heterogeneous Wireless Mesh Networks
Topology Control Wireless Mesh Networks Backbone Energy Efficiency
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2010/2/2
A considerable amount of energy is consumed during
transmission and reception of messages in a wireless mesh network
(WMN). Reducing per-node transmission power would greatly
increase the network l...
A NEW MESH RE-GENERATION METHOD FOR FREE SURFACE FLOW ANALYSIS BASED ON INTERFACE-TRACKING METHOD
mesh re-generation technique free surface flow interface-tracking method
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2008/12/23
This paper presents a new mesh re-generation technique for free surface flow analysis based on the interface-tracking method. The incompressible Navier-Stokes equation based on the arbitrary Lagrangi...
Traffic Growth and Network Engineering in Optical Mesh Networks
Traffic Growth Network Engineering Optical Mesh Networks
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2015/8/6
Backbone networks employing optical meshes require periodic upgrades to support increasing traffic.Network-Cut Exhaustion Probability is used to guide the upgrade (namely Network Engineering) of such ...
Demonstration of Bidirectional Add Drop Multiplexers and Mixed Signals in a DWDM Mesh Architecture
Bidirectional Add Drop Multiplexers Mixed Signals DWDM Mesh Architecture
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2015/8/6
We demonstrate network integration of passive BADMs using Dense Wave Division Multiplexing (DWDM). Full duplex transmission in a fully interconnected fiber ring architecture supports analog and digita...
Mesh Network Transport Experiments Using a Distributed-Distance Circulating Loop
Mesh Network Transport Experiments Distributed-Distance Circulating Loop
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2015/8/3
We demonstrate long haul transmission in a circulating loop with impairment-constrained wavelength-assignment to channels simultaneously propagating over different circulation distances.
Impact of Wavelength Route Correlation on the Optimal Placement of Optical Monitors in Transparent Mesh Networks
Wavelength Route Correlation Optimal Placement Optical Monitors Transparent Mesh Networks
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2015/7/31
Wavelength route correlation is considered for optimal monitor placement in transparent networks. The associated reduction in monitoring requirement is studied as a function of repair cost and traffic...
GMPLS-controlled All-optical Mesh Networking Demonstration using Path Computation-capable NMS
GMPLS-controlled All-optical Mesh Networking Path Computation-capable NMS
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2015/7/30
A GMPLS-controlled all-optical mesh networking was successfully demonstrated using a path computation-capable network management system (NMS). The developed NMS can manage topology and physical impair...
基于动态规划法的无线Mesh网络QoS路由算法和性能评价
无线Mesh网络 QoS路由 动态规划 跨层设计
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2008/5/14
该文针对时延敏感的多媒体业务吞吐率和传输可靠性的考虑，在无线Mesh网络中，引入动态规划和跨层设计方法设计QoS路由算法。在假设的网络模型上，提出了一个新的基于MAC层信息的综合凸规划路由准则，以及基于此实现的路由算法CPRMQS，详细给出了利用动态规划法解决路由优化问题的算法流程和样例分析。最后通过仿真验证了该算法的可行性，并给出了基于DSR扩展协议的性能评价，其中包括吞吐率和延时等性能。
AODV-HM: A Hybrid Mesh Ad-hoc On-demand Distance Vector Routing Protocol
Wireless Mesh Networks Routing Hybrid Mesh Networks Channel Diversity
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2014/3/11
Wireless Mesh Networks (WMNs) have recently gained increasing attention and have emerged as a technology with great potential for a wide range of applications. WMNs can be considered as a superset of ...