Imitative Collaboration: A mirror-neuron inspired mixed reality collaboration method with remote hands and local replicas

Mixed reality can overlay and display 3D digital content in the real world, convey abstract concepts to users, and promote the understanding of complex tasks. However, the abstract graphics overlaid on the physical space may cause a certain cognitive load for local users and reduce the efficiency of collaboration. To improve the efficiency of remote collaboration, we conducted an elicitation study on assembly tasks, explored the user needs for collaboration, and defined the design goals of our remote collaboration method. Inspired by the mirror-neuron mechanism, we present an imitative collaboration method that allows local users to imitate the interaction behavior of remote users to complete tasks. We also propose a series of interaction methods for remote users to select, copy, and interact with the local point clouds to facilitate the expression of collaboration intentions. Finally, the results of a user study evaluating our imitative collaboration method on assembly tasks are reported, confirming that our method improves collaboration efficiency while reducing the cognitive load of local users.     

阿尔卡特呼叫中心解决方案

阿尔卡特呼叫中心解决方案基于局域网,采用ＣＳＴＡ作为主导通信协议,其Ａ４４００ＣＣｘ产品系列包括呼叫中心分配器Ａ４４００ ＣＣＤ、监管系统Ａ４４００ ＣＣＳ１管理器Ａ４４００ＣＣＭ、座席应用组件Ａ４４００ ＣＣＡ、万维网服务器Ａ４４００ ＣＣＷ以及语音应答、语音记录和其它配套设备。其中阿尔卡特４４００综合业务交换平台的基本结构采用阿尔卡特晶体结构技术;而公司的专利技术－－矩阵化分配方式则运用于呼叫     

A Receiver in a Millimeter Wave Radiometer for Atmosphere Remote Sensing

A millimeter wave radiometer system with high resolution is described in this paper, which was used for remote sensing of integrated water vapor and integrated liquid water in the troposphere. A novel receiver technique was adopted in the radiometer system to deracinate an impact of the receiver gain shift on its precision and improve its performance. Measured results show that this radiometer system has enough stability in long time measurement and capability to measure atmospheric brightness temperature.     

IT support services for telecommuting workforce

Organizations are in the process of moving to a network-based operating structure. Telecommuting is just a corollary of this push. While new information technologies allow for a highly mobile work force that can work from remote locations across the world, this begs the question how does supporting this new telecommuting workforce differ from supporting employees in a regular office. The purpose of this study is to describe how telecommuting and a telecommuter differ from in situ working and the desk-bound worker and how this difference dictates different approaches to providing various services such as IT support services for telecommuters. Our goal is to provide a framework to assist IT managers in addressing issues of how to support telecommuting employees to maximize their potential benefits.     

高压喷射灌浆技术简介

高压喷射灌浆（下简称高喷）技术，虽是一项新技术，有些问题还有待进一步完善，但其发展势头之迅，足以说明它所具有的功能、优点，有很强的推广价值，引黄工程大梁水库坝基防渗墙就是一例。本文介绍了高喷技术原理、分类、适用范围、设备、工序以及主要参数确定等     

汾河二坝灌区引洪灌溉分析

本文对汾河二坝灌区作物生长缺水现状和二坝水文站以上可利用的洪水资源进行了统计。认为二坝以上每年来洪是解决灌区农作物受旱的水源之一。调查分析了灌区历年来的引洪量、引洪特点、经验和教训。对今后引洪中可能存在的问题及其它工程进行了分析并提出了建议。     

三菱变频器遥控功能在PC钢棒剪切机中的应用

本文以三菱变频器在PC钢棒剪切机中的应用为例,详细介绍了三菱变频器遥控功能在此项工程中的应用。遥控功能以其远程操作控制简单方便的优点而在工程中得以广泛应用。     

A novel call admission control scheme in cellular/WLAN integration and performance analysis

In order to achieve the Quality of Service (QoS) provisioning and efficient resource utilization in cellular network and Wireless Local Area Network (WLAN) integration, an Integrated Service-Based Call Admission Control (ISB-CAC) scheme is proposed in this paper. The integrated network is modeled by using multi-dimensional Markov chains. The numerical analysis is presented to evaluate the important performance measures such as the blocking probability of originating calls, the dropping probability, and the average transfer time, etc. The steady-state probabilities of the multi-dimensional Markov chains are obtained by using an iterative approach, and the CAC parameters are optimally designed. The analytical model is validated by the computer simulation. It is shown that compared with the conventional WLAN-First Call Admission Control (WF-CAC) scheme, the proposed ISB-CAC scheme not only provides better QoS for mobile users but also utilizes the bandwidth resources more efficiently.     

铜箔皱原因分析及改善措施

压合工序是线路板工厂中最重要的工序之一,铜皱问题是行业内推广薄铜箔最大的阻碍。文章通过自行设计简易试验装置,设计对比试验,分析了压合铜箔皱的机理,阐述了温度均匀性对铜皱的影响,完善了行业内对该问题的理论认识;提出了一种针对铜皱问题全新的解决思路和方法即通过参考树脂融化点调整压合程序的方式解决压合铜箔皱问题。     

基于机械倾斜方式的过顶跟踪算法

首先推导了卫星过顶时盲区的计算公式,然后给出了实施机械倾斜过顶跟踪时,基于TILT A'-E'型三轴座架的倾斜范围的选取方法和倾斜轴方向的确定途径。经实际工程验证,这种倾斜范围的选取方法和倾斜轴方向的确定途径是合理、可行的。