Bridge

摘要： Train–track–substructure dynamic interaction is an extension of the vehicle–track coupled dynamics.It contributes to evaluate dynamic interaction and performance between train–track system and its substructures.For the first time,this work devotes to presenting engineering practical methods for modeling and solving such large-scale train–track–substructure interaction systems from a unified viewpoint.In this study,a train consists of several multi-rigid-body vehicles,and the track is modeled by various finite elements.The track length needs only satisfy the length of a train plus boundary length at two sides,despite how long the train moves on the track.The substructures and their interaction matrices to the upper track are established as independent modules,with no need for additionally building the track structures above substructures,and accordingly saving computational cost.Track–substructure local coordinates are defined to assist the confirming of the overlapped portions between the train–track system and the substructural system to effectively combine the cyclic calculation and iterative solution procedures.The advancement of this model lies in its convenience,efficiency and accuracy in continuously considering the vibration participation of multi-types of substructures against the moving of a train on the track.Numerical examples have shown the effectiveness of this method;besides,influence of substructures on train–track dynamic behaviors is illustrated accompanied by clarifying excitation difference of different track irregularity spectrums.

摘要： The sampling Moiré(SM) method is one of the vision-based non-contact deformation measurement methods, which is a powerful tool for structural health monitoring and elucidation of damage mechanisms of materials. In this review, the basic principle of the SM method for measuring the twodimensional displacement and strain distributions is introduced. When the grid is not a standard orthogonal grating and cracks exist on the specimen surface, the measurement methods are also stated. Two of the most typical application examples are described in detail. One is the dynamic deflection measurement of a large-scale concrete bridge, and the other is the residual thermal strain measurement of small-scale flip chip packages. Several further development points of this method are pointed out. The SM method is expected to be used for deformation measurement of various structures and materials for residual stress evaluation, crack location prediction, and crack growth evaluation on broad scales.

摘要： 煤炭资源是保障我国能源安全的基石,是国民经济的重要组成部分。工业智能程度是影响现代化煤矿开采的重中之重,而智能化的核心就是对煤矿的设备运转、工业生产、信息安全等数据进行智能的监控和分析。传统的SCADA工控系统形式单一,因为设备厂商协议的限制,在一个煤矿中可能会同时存在多套系统。煤矿是一个系统繁杂、环境复杂的空间生产管理体系,想要实现煤炭无人化和少人化开采的愿景,必须要对矿区全部数据进行统一的智能分析、智能决策、智能调度。本文针对不同厂家PLC(Programmable Logic Controller)可编程逻辑控制器数据采集问题、矿区生产环境问题等,利用基于底层优化的OPC-UA协议栈,使用Redis和MySQL等数据管理工具,结合大数据技术、数据融合技术、机器学习技术,最终实现50000点I/O在2秒以内的高速、海量、智能、统一的PLC数据通信系统Bridge。

摘要： The utilization of Ca ion as assistant depressant of CMC on talc has been widely reported.Thus,the study on the adsorption mechanism of Ca ion on talc surface is very crucial for understanding the performance of CMC on talc depression.In this paper,mechanism insights into hydrated Ca ion adsorption on talc(001) basal surface were creatively provided using DFT calculation.[Ca(H_(2)O)_6]^(2+) and [Ca(OH)(H_(2)O)_(3)]^(+) were determined as the effective hydrate components for Ca ion adsorption,and the top O site was the most favorable position for their adsorptions on talc surface.Furthermore,the adsorption mechanisms of [Ca(H_(2)O)_6]^(2+) and [Ca(OH)(H_(2)O)_(3)]^(+) on talc surface were found to be not the Ca-O chemical bond,but the hydrogen bonding formed by the H atom of the H_(2)O ligand and the surface O atom.H_(2)O acted like a bridge to connect them to the talc surface.Moreover,the hydrogen bonding was formed due to the hybridization of H 1s orbital with the O 2s,O 2p orbitals.Simultaneously,electrons transferred between the H atom and the surface O atom.This work provides theoretical insights into the Ca ion adsorption on talc surface,which can help deeply understand the talc flotation using CMC as depression.

摘要： On May 25,2019,the 72nd World Health Organization Assembly reviewed and approved the 11th revision of the International Classification of Diseases(ICD-11).ICD-11 features a new chapter of traditional medicine,incorporating 150 traditional Chinese medicine(TCM)diseases and 196 TCM syndromes.This is the first time that the TCM''s understandings of diseases and syndromes were introduced into the authoritative international medical classification system and were presented to medical researchers and clinicians from different cultures and with various knowledge backgrounds.It is a landmark achievement for the TCM''s move to go global.

摘要： The myodural bridge(MDB)is a connection between the suboccipital muscles and cervical dura mater in the posterior atlanto occipital interspace found in mammals.Specifically,we focused on the Gloydius Shedaoensis,a species of Agkistrodon that only found on Shedao Island located in the southeastern sea of Dalian City in China.Six head and neck up to the sixth vertebra(V6)cadavers of Gloydius Shedaoensis were examined in this study.Three were used for anatomical dissection and the remaining three were used for histological analysis.The spinalis muscle originated from the posterior edge of the supraoccipital bones and the dorsal facet of exocciput,extended on both sides of the spinous process covering the spine,merging with semispinalis muscle.

摘要： The myodural bridge is a dense connective tissue connecting muscles and ligaments to the spinal dura mater.Some researchers believe that the myodural bridge may play vital physiological roles.Previously,the myodural bridge has been shown in five different groups of mammals.Bats are nocturnal and the only mammals that can perform a true and sustained flight;whereas tree shrews(Tupaia belangeri)are arboreal mammals that often climb to a high altitude of about 10000 feet.Both animals have life styles that are different from other previously studied mammals.The study of these two animals will further shed light on the existence of the myodural bridge in mammals.

摘要： Jeff Bridges是在美国洛杉矶的办公室中接受我们的采访。这位奥斯卡影帝畅谈他是如何深深爱上静态影像的,亦如他对动态影像那般热爱。Jeff对摄影的迷恋可以追溯至少年时代。和无数长大后成为职业摄影师的人一样,他从那时起就开始摆弄父亲的相机了。不久之后,他看到了一台Widelux相机,那是一位摄影师来到他所在的高中拍班级集体照的时候使用的相机。

摘要： The aseismic design of cable-stayed bridges in the transverse direction with newly proposed metallic dampers that can accommodate both longitudinal and transverse movement of the deck has recently been considered.This work focuses on developing a simplified method to design an appropriate metallic damper.The seismic performance of cablestayed bridges with different damper stiffness,main span lengths,tower shapes and types of deck in the transverse direction are investigated.The transverse displacement of the deck of a cable-stayed bridge increases significantly with the increment of the damper stiffness,which proves that the design of the damper stiffness is crucial.A simplified model considering the damper stiffness,cable system and tower in the transverse direction is developed to evaluate the period and lateral displacement of a complicated cable-stayed bridge.Based on the simplified model,a design method is proposed and assessed using two cable-stayed bridges as examples.The results show that metallic dampers can be designed with high efficiency,and the optimal ductility of the damper can be selected.

摘要： 为研究无线桥接技术在网络连接中的运用方法,对市场常见无线设备的Bridge与WDS功能进行了解读.结合无线网络深度覆盖技术在莫高窟的应用研究实践,通过分析AC+FIT和FAT AP桥接实例了解不同功能实现情况,从操作条件、方法和功能实现三个角度对Bridge与WDS的差异展开了分析.从研究结果来看,WDS具有配置简单、信息安全等诸多优势,可以满足无线网络深度覆盖需求.

摘要： 本发明提供一种基于Linux Bridge的虚拟网络实现方法，所述方法包括：S1：Linux Bridge连接物理网卡，不同主机上的第一物理网卡通过物理交换机组成数据网；所述不同主机上的第二物理网卡通过物理交换机连接网络控制单元组成管理网；所述数据网和管理网共同构成虚拟网络；S2：当主机中有虚拟机加入到所述虚拟网络时，所述网络控制单元向所述主机发送连接命令，所述主机将述虚拟机连接到所述Linux Bridge上；S3：当主机中有连接的虚拟机离开所述虚拟网络时，所述网络控制单元向所述主机发送断开命令，所述主机将所述连接的虚拟机与所述Linux Bridge断开。本发明通过提供一种基于Linux Bridge的虚拟网络实现方法及系统，实现了动态控制虚拟机与虚拟网络之间的连通。

摘要： 本发明是一种JTAG Bridge的接口时序设计方法及其实现装置，该接口时序设计方法包括：(1)当JTAG Bridge被eTBC选中时，设置TCK_L信号的输出与TCK_B信号反相；(2)当JTAG Bridge的LSP进入UNPARK状态时，设置TMS_L信号比TMS_B信号延迟半个TCK_B时钟周期输出；(3)当JTAG Bridge的LSP进入PARK状态时，设置TMS_L信号保持常1或者常0状态。该接口时序设计方法的实现装置包括：反相器，其位于JTAG Bridge中传输TCK_B信号与TCK_L信号的电路中，使TCK_L信号的输出与TCK_B信号反相；D触发器，其位于JTAG Bridge中传输TMS_B信号与TMS_L信号的电路中，使TMS_L信号比TMS_B信号延迟半个TCK_B时钟周期输出。本发明的设计方法简单，成本低；实施本发明，能够使系统级JTAG总线的稳定性得到有效保证。

摘要： 本发明提供了一种EDFB模式下SAS2SATA Bridge的错误处理方法和装置，该方法包括：当SAS2SATA Bridge接收到来自SATA的DMA Setup FIS时，记录第一标记信息；当SAS2SATA Bridge接收到来自SATA的SDB FIS时，记录NCQ命令完成信息和第二标记信息；当SAS2SATA Bridge接收到来自SATA的Data FIS，并且传输出错时，记录第三标记信息，并从第三标记信息中定位出错标记；将第一、第三标记信息与第二标记信息进行对比，根据对比结果确定错误处理流程；移除第二标记信息中的出错标记，并将第二标记信息进行重组，然后将第二标记信息上报给HBA。本发明的方案在Expander EDFB模式下，精确定位出错的NCQ命令，并及时上报成功的NCQ命令，从而降低传输错误带来的性能损失。

摘要： 本发明提供一种基于Linux Bridge的虚拟网络实现方法，所述方法包括：S1：Linux Bridge连接物理网卡，不同主机上的第一物理网卡通过物理交换机组成数据网；所述不同主机上的第二物理网卡通过物理交换机连接网络控制单元组成管理网；所述数据网和管理网共同构成虚拟网络；S2：当主机中有虚拟机加入到所述虚拟网络时，所述网络控制单元向所述主机发送连接命令，所述主机将述虚拟机连接到所述Linux Bridge上；S3：当主机中有连接的虚拟机离开所述虚拟网络时，所述网络控制单元向所述主机发送断开命令，所述主机将所述连接的虚拟机与所述Linux Bridge断开。本发明通过提供一种基于Linux Bridge的虚拟网络实现方法及系统，实现了动态控制虚拟机与虚拟网络之间的连通。

摘要： 本实用新型涉及一种USBBridge数据传输装置。主要解决了一般USB传输只能提供单向数据流传输，无法实现两台电脑之间直接数据传输的问题。系统包括有第一USB收发器和第二USB收发器，所述第一USB收发器依次连接第一收发器宏单元接口和第一USB串行接口引擎后连接到处理器上，所述第二USB收发器依次连接第二收发器宏单元接口和第二USB串行接口引擎后连接到处理器上。本实用新型的优点是采用USB传输方式实现了两台电脑之间数据直接传输，不需要再通过USB拷贝、移动硬盘拷贝和邮件等方式来传输，使用方便快捷。

摘要： 本发明公开了一种SDN新型网络中OVS与Linux bridge的网络部署方法，SDN控制器既可以直接对OpenFlow硬件交换机进行管理和控制，使与之相连的物理服务器之间可以通过SDN网络进行通信；还可以通过传统交换设备作为媒介渗透到Linux内核中，对open vSwitch与Linux bridge进行管理和控制；其中对OVS可以直接通过流表规则下发，制定相应策略，完成对虚拟网络的细粒度组网规划，对Linux网络协议栈进行网桥虚拟化，虚拟出各种网络桥，实现虚拟机之间的网络连通；对SDN控制器中增加管理和控制Linux bridge的控制模块，实现直接对Linux内核进行控制，实现对OVS与Linux bridge的灵活切换。本发明适用于通用、可扩展的云网络场景中。

摘要： 本发明使用了基于扩充的SWRL规则本体关联方法，并把方法进行了扩展，从单一类的关联扩展到混合类和属性的关联，完善了基于SWRL规则的本体关联方法。同时使用了基于Bridge-Peer的模型进行本体间的关联。其主要内容是把语义相关度高的本体划分为一个簇，语义不相关或相关度低的本体处于不同簇内，簇内本体通过扩充的SWRL规则实现关联，而簇间的本体通过bridge-peer节点进行关联。该模型在进行查询关联时解决了瓶颈问题。本发明保留了基于SWRL扩充规则的本体关联方法和基于super-peer模型的本体关联方法的优点。同时，也弥补了两者的不足，使得新模型的健壮性更好，使用范围更广。

摘要： 一种基于Linux bridge和SDN控制器的单播VXLAN管理系统，包括Linux bridge与vtep的管理、二层寻址的管理、bridge‑vtep与FDB之间的顺序管理三部分，Linux bridge与vtep的管理是基于Redis Queue和Consumer，实现二层虚拟交换机与vtep的管理；二层寻址的管理：基于etcd和watch，实现FDB转发表的管理，bridge‑vtep与FDB之间的顺序管理：由SDN控制器操作的顺序控制，来保证linux bridge与vtep优先于FDB转发表存在，不同租户拥有独立的隔离网络，满足客户的网络安全需求，提高资源利用率。

摘要： 本发明公开了一种SDN新型网络中OVS与Linux bridge的网络部署，SDN控制器既可以直接对OpenFlow硬件交换机进行管理和控制，使与之相连的物理服务器之间可以通过SDN网络进行通信；还可以通过传统交换设备作为媒介渗透到Linux内核中，对open vSwitch与Linux bridge进行管理和控制；其中对OVS可以直接通过流表规则下发，制定相应策略，完成对虚拟网络的细粒度组网规划，对Linux网络协议栈进行网桥虚拟化，虚拟出各种网络桥，实现虚拟机之间的网络连通；对SDN控制器中增加管理和控制Linux bridge的控制模块，实现直接对Linux内核进行控制，实现对OVS与Linux bridge的灵活切换。本发明适用于通用、可扩展的云网络场景中。

摘要： 本发明使用了基于扩充的SWRL规则本体关联方法，并把方法进行了扩展，从单一类的关联扩展到混合类和属性的关联，完善了基于SWRL规则的本体关联方法。同时使用了基于Bridge－Peer的模型进行本体间的关联。其主要内容是把语义相关度高的本体划分为一个簇，语义不相关或相关度低的本体处于不同簇内，簇内本体通过扩充的SWRL规则实现关联，而簇间的本体通过bridge－peer节点进行关联。该模型在进行查询关联时解决了瓶颈问题。本发明保留了基于SWRL扩充规则的本体关联方法和基于super－peer模型的本体关联方法的优点。同时，也弥补了两者的不足，使得新模型的健壮性更好，使用范围更广。