广播专业摄录机的数字化进程

本文以时间为序，从不断演变的摄录编格式入手，介绍了广播专业摄录一体机数字化的发展变化过程。     

家用摄录一体机的现状和最新动向（一）

本文较全面地叙述了家用摄录一体机的现状和最新动向。对３片式、２片式家用ＣＣＤ摄录一体机，双镜头画中画功能，ＬＣＤ彩色寻像器的有关技术作了简要的介绍。     

索尼HDW-700高清摄录一体机技术特点

HDW-700高清摄录一体机是由SONY公司开发的，率先在国内使用的便携式高清摄录一体机。它属于索尼的HDCAM格式，技术上具有许多特点。下面将HDW-700高清摄录一体机分为两个部分介绍以增进了解。     

数字新媒体

JVC发布最新型高清摄录一体机 4月22日，JVC公司在中国的全资子公司——杰伟世（中国）投资有限公司在北京发布介绍了其最新产品GY-HM850E和GY—HM890E肩扛式专业高清摄录一体机，该摄像机为新闻采集的网络集成树立了新的标杆。作为一款全新的产品，     

Sony推出三款摄录一体机

CCBN2011召开前夕，Sony在北京发布了三款摄录一体机新品：PMW-F3高性能普及型Super 35mm全画幅手持式摄录一体机，HXR-NX5C手持式存储卡全高清摄录一体机和HXR—MC1500C肩扛式存储卡全高清摄录一体机。     

广播专业摄录机的数字化进程

本文以时间为序,从不断演变的摄录编格式入手,介绍了广播专业摄录一体机数字化的发展变化过程。     

日立Z—V1B数字摄录一体机的操作与使用

数字摄录一体机已逐渐进入各电视台，要想使用好设备，拍摄出理想的画面，正确设置开关与菜单非常重要，本文对日立公司生产的Z－V1B数字摄录一体机的开关，菜单设置以及涉及到的术语作了较详尺的介绍与说明，以保证摄像机的正确操作使用。     

利用夏普VL—C7500E摄象机改装遥控摄象终端

文章较详细介绍了一种摄录一体机改装遥控摄象终端的方法，根据介绍的方法进行改装，再配备上一个简单的控制器，即可实现一个遥控摄象系统。     

高校摄录编播设备数字化改造探析

为了用有限的资金建设一个高标准、现代化的适合高校现代教育技术需要的数字化摄录编播系统，结合实际，详细介绍一种适合高校重大事件记录、课件制作及教学片拍摄、可以满足高校多种需求的数字化摄录编播设备的合理化配置。     

数字摄录设备的磁带保养和常见故障处理

结合笔者长期维修维护工作的实践,以松下DVCPRO50M/25M数字摄录设备为例,简要介绍了数字磁带的正确使用和保存、数字摄录设备的定期维护保养措施和常见故障的处理。     

Verification of Flexible Actuator From Position and Force Transfer Characteristic and Its Application to Bilateral Teleoperation System

Robot hands have been utilized in bilateral teleoperation as mechanical interfaces. As mechanisms of robot hands, wire mechanisms and rod mechanisms have been developed. Wire mechanisms have a flexibility of allocation of actuators and the fingertips of the robot hand. The demerit of wire mechanisms is that they do not transmit position and force accurately. On the other hand, rod mechanisms are useful for transmitting position and force accurately. The disadvantage of rod mechanisms is that they restrict allocation of actuators and the fingertips of the robot hand. Therefore, the flexible actuator has been developed for having merits of both wire mechanisms and rod mechanisms. In the flexible actuator, the thrust wire transmits position and force from actuators to the fingertips of the robot hand. This paper verifies position and force transfer characteristics of the thrust wire. Moreover, as one of the application of the flexible actuator, the experimental results of a bilateral teleoperation system with the flexible actuator is shown. It is confirmed that the flexible actuator has the merits of both wire mechanisms and rod mechanisms when the flexible actuator is applied to the bilateral teleoperation system.     

General study of jitter mechanisms for metric-based wireless routing protocols

To ameliorate high collision, a nefarious side effect of route discovery stage of reactive routing protocols in wireless networks, jitter mechanisms are proposed which enforce wireless nodes to postpone their transmission for a random amount of time so as to reduce probability of simultaneous transmission. Although it has been shown that jitter mechanisms can dramatically improve reactive routing protocols, it was not until recently that jitter mechanisms have been subjected to study. In this paper, different random distributions are proposed for jittering mechanisms and also shaping function, with the aim of which a simple routing protocol like AODV becomes sensitive to any arbitrary metric, is defined. Comprehensive simulation of routing metrics and jitter mechanisms have revealed that simple modification of a jitter mechanism, which can be even implemented independent of a routing protocol, greatly improves routes discovered by any routing protocol.     

Modeling of the silicon (100) thermal oxidation: from quantum to macroscopic formulation

In this paper, we investigate the modeling of dry silicon thermal oxidation in the light of the model capabilities and the trends in microelectronics. We show how a combined use of different models can be made in a way to generate process simulations that are strongly related to microscopic physical phenomena. In conjunction with experimental literature data, first principle calculations have been carried out with the objective of isolating some elementary oxidation mechanisms, i.e. basic atomic movements and their corresponding activation energies. This preliminary list of mechanisms is discussed in detail. A growth mechanism allowing the oxide defect generation is proposed. We then present Monte Carlo calculations with the implemented mechanisms where at least three silicon layers are oxidized. Finally, we introduce a macroscopic formulation of these mechanisms via the Chemical Rate Theory.     

定域无缺陷SOI的制备

两种行之有效的晶粒间界限制技术:热沉结构和硅槽结构使区熔再结晶SOI实现定域无缺陷,这是采用区熔技术制备SOI的技术关键和难点所在。本文讨论了两种结构限制晶界的机理。     

Crosstalk of passive directional couplers

Crosstalk in directional couplers (DC's) is an important parameter for device and system performance. Although various crosstalk mechanisms have been studied through the course of integrated optics, the fundamental lower limit for crosstalk is still uncertain. In this paper, crosstalk mechanisms are reviewed and fundamental limits are discussed. A new model for optical scattering is presented, and the effect of bending loss variation between the two propagating modes in the taper region on the crosstalk is discussed     

Microstructure of metal-filled carbon nanotubes

Catalysts are usually required to produce carbon nanotubes (CNTs) and play important roles during the growth process. Any catalysts that remain after processing are expected to add extra properties and removal of the catalysts is usually required to achieve the original properties of CNTs. Recently, CNTs have been filled incidentally by catalysts, such as Pb, Sn, Ni and Bi. This has led to success in obtaining additional properties and a few models have been proposed to describe the encapsulating mechanisms. In the present study, CNTs were filled with palladium by a microwave plasma-assisted chemical vapor deposition method. Detailed structural and compositional investigations of these metal-filled CNTs were carried out by transmission electron microscopy to elucidate the growth mechanisms.     

Multiagent Coordination Techniques for Complex Environments: The Case of a Fleet of Combat Ships

The use of agent and multiagent techniques to assist humans in their daily routines has been increasing for many years, notably in command and control C2 systems. In this context, we propose using multiagent planning and coordination techniques for resources management in C2 systems. The particular problem we studied is the design of a decision-support for antiair warfare on combat ships. In this paper, we refer to the specific case of several combat ships defending against incoming threats and where coordination of their respective resources is a complex problem of capital importance. Efficient coordination mechanisms between the different combat ships are then important to avoid redundancy in engagements and inefficient defence caused by the conflicting actions. To this end, we present four different coordination mechanisms based on task sharing. Three of these mechanisms are communication-based: central coordination, contract Net coordination, and ~ Brown coordination, while the last one is a zone defence coordination and is based on conventions. Finally, we present the results obtained while simulating these various mechanisms     

电子产品可靠性评价与物理模型应用探讨

该文以电子产品的故障为出发点,从集成电路-封装、集成电路-芯片、电路板(或线路板)、电子元件、系统和多系统的角度论述了不同任务环境下电子器件的故障机理特点。系统论述了故障模式、影响及危害性分析(FMECA)和故障模式、机理与影响分析(FMMEA)两种故障机理分析方法,同时结合低周疲劳、高周疲劳、裂纹萌生、反应论模型、芯片失效等失效机理对故障物理元模型进行分类讨论,对电子产品可靠性评价与物理模型应用进行了系统的探讨,为电子产品可靠性评价及失效物理评估模型的选取提供了依据。     

Realistic Long Term Evolution Performance for Massive HeNB Residential Deployments

Nowadays, around 80 % of the mobile data traffic is generated indoors, and, therefore, in-building solutions are gaining interest among mobile operators, to improve user’s quality of experience and optimize the use of network resources. In this context, with IEEE 802.11 and 3G/HSPA femtocells competing as in-building solutions long term evolution has appeared to enable operators to meet growing data-rate demands, and it is expected to have a key role in future indoor deployments. In this paper, a complete analysis of the performance of in-building self-deployment LTE solutions is carried out, by means of system-level network simulations in multiple typical indoor scenarios. The variability of the performance due to aspects such as the arbitrary HeNB location, the penetration rate of the service, the neighboring effects of HeNB nodes, the frequency used and the interaction among LTE macrocells and femtocells are thoroughly studied and discussed. Besides that, mechanisms proposed in 3GPP Release 11 to mitigate performance degradation in high density HeNB deployments are presented and analyzed. With regard to these mechanisms, different configuration access modes control schemes to automatically select transmitted power and Intercell Interference Coordination Techniques (ICIC) have been considered, and their effect on the performance of HeNB in-building deployments have been assessed. The results obtained provide network designers and mobile operators with valuable information about the expected number of indoor users which can be served using HeNB networks and its variability under different network conditions. In addition to this, results presented are useful to define policies to select when mechanisms to mitigate performance degradation are required to be activated, depending on the type of deployment scenario, penetration rates, HeNB loads or operator prioritization requirements, and both select the ranges of the configurable parameters of these mechanisms, and HeNB default settings.     

On the correlation between SILC and hole fluence throughout the oxide

Stress-induced leakage current (SILC) has been recognized as a topic of concern in flash memory reliability. It is a reliable failure mechanism, occurring long before oxide breakdown and, hence, limiting oxide lifetime[1]. The physical origin and mechanisms of SILC have not yet been clearly understood and several points open to discussion remain. In this work the role of oxide hole fluence in producing the SILC is discussed. An universal power law of SILC generation kinetics is proposed versus the hole fluence throughout the oxide. The experimental results are theoretically validated by modeling the measured quantum-yield by the contributions of both anode hole injection and electron valence band injection mechanisms.