一年内军用飞机重大事故知多少

据不完全统计，国外军用飞机在1996年内发生重大事故278起，死亡人数为666人（未公布数字者或被击落者除外）。统计入内的国家有美、英、法、俄、德、日本。意大利、荷兰、希腊、泰国、保加利亚、马来西亚、尼日利亚、斯里兰卡、波兰、捷克、斯洛伐克、伊拉克、西班牙、丹麦、印度、土耳其、厄瓜多尔、南非、阿联酋、柬埔寨、安哥拉、苏丹、芬兰、韩国、朝鲜、马里、萨尔瓦多、秘鲁、菲律宾、巴基斯坦、瑞典、马来西亚、以色列、津巴布韦尔、毛里塔尼亚、阿根庭、突尼斯、匈牙利、巴西、罗马尼亚、印尼、白俄罗斯、乌干达、约旦、澳大利亚、…     

第三届中国电子学会优秀科技工作者评选结果揭晓

第三届中国电子学会优秀科技工作者评选工作于2016年1月24日结束。评选结果经学会九届十一次常务理事会审议批准,现予以发布。授予60位科技工作者"中国电子学会优秀科技工作者"荣誉称号。名单如下:白雪茹、曹先彬、陈爱新、陈万军、程健、池保勇、杜彪、方明、高红卫、高韬、高五峰、韩金林、侯仰龙、胡栋良、黄韬、黄云、贾小波、江昊、黎华、李明、李秀萍、李赞、林学春、刘开进、刘一民、卢晶、罗洪斌、罗毅、潘时龙、潘长勇、彭春荣、彭木根、乔明、任佳、沈俊、宋延、田东斌、王恒、王启明、吴华、吴永乐、徐涛、严寒冰、杨崇和、杨春晖、杨淑媛、杨小鹏、仰叶、叶甜春、岳明、张鸿、张修社、     

影碟机激光头及通用型号

牌号型号适用机型备注先锋A100、1030、3030、Wl、LD66I、N、P可直接代换B616、2070、3070F870、1070、1570、K80H95、2080、2090、3090I110、980、990、1080、1090、1580、1590、FI、AVI、K50、KI000J(O)F7、757、2590、2710、2720、日立K255M(T)即VWTll03201、250、260、350、360、450、1710、1720、1730、日立RX一SEXM头与T头通用NM301、M501P1750T1720U2730V勺VTllloCLD一370、270、280、1750、2750,AV一300、500、700索尼HKS一130A333、405、455、533、555、605、755、U3、Kl、K3、KS、KS、K15三星405、500、…     

信息产业部正式批准IP电话试运营

信息产业部正式批准中国电信、中国联通、吉通三家公司进行ＩＰ电话业务运营试验。三家运营公司开展ＩＰ电话业务试验的范围分别是：中国电信在北京、上海、广州、武汉、西安、沈阳、南京、成都、天津、重庆、杭州、福州、济南、长沙、昆明、哈尔滨、长春、郑州、深圳、东莞、苏州、大连、青岛、厦门、珠海等２５个城市进行ＩＰ电话业务运营试验;中国联通在北京、上海、天津、重庆、广州、南京、厦门、成都、杭州、福州、深圳、大连等１２个城市进行ＩＰ电话业务运营试验;吉通公司在北京、上海、广州、深圳、武汉、大连、青岛、东莞、厦门…     

手机电视全球峰会深圳落幕!

由中瑞国际展览公司等单位联合主办的“2006移动电视（手机电视）国际高峰论坛暨展示交流会”（简称“Mobile TV2006”）于9月2日在深圳会展中心梅花厅落幕。广电和电信系统20多位专家、清华研究院、韩国电子通信研究院（DMB）、信息产业部电信研究院、Intel、Samsung、ADI、Infineon、Frontier Silicon、Thomason、Megachips、Zoran、意法半导体、德州仪器、哈里斯、爱迪德、矽玛特、展讯、中星微、珠海矩力、法国迪康、MOTO、SONY、Samsung、飞利浦、NEC、松下、LG、阿尔卡特、华为、中兴、普天、大唐、UT斯达康、富士康、联想、海尔、海信、TCL、创维、康佳、天时达、国虹、步步高、德赛、宇阳、友利通、万利达、创维、天时达、松讯达一华禹、金立、运营商Do．CoMo、法国电信、台湾威宝电信、央视国际、CCTV、凤凰卫视、华娱卫视、文广传媒、南方传媒、深圳力合、风网科技、互联天下、神州掌讯及北京、上海、江苏、江西、福建、广东、山东、浙江、安徽、湖北、香港等40多个城市移动运营机构等产业链高层代表667位参加“Mobile TV2006”，会议就各标准在中国的运营状态、商业模式、国际合作、研发设计、终端产品转型、内容服务及产业链的打造展开尖峰对话。     

历届春晚主持人回顾

一九八三年:马季、姜昆、王景愚、刘晓庆一九八四年:赵忠祥、卢静、黄阿原、姜昆、姜黎黎、陈思思(香港)一九八五年:马季、姜昆、张喻、朱苑宜(台湾)、斑斑(香港)一九八六年:赵忠祥、王刚、姜昆、刘晓庆、方舒、顾永菲一九八七年:李默然(朗诵)王刚、李小玢、姜昆一九八八年:孙道临、王刚、姜昆、侯耀文等一九八九年:李默然、赵忠祥、姜昆、阚丽君、李扬一九九零年:赵忠祥一九九一年:赵忠祥、倪萍、张洪民、李瑞英一九九二年:杨澜、赵忠祥、倪萍一九九三年:梁雁翎、李庆安、张永权、赵忠祥、倪萍、杨澜一九九四年:倪萍、程前     

TD产业联盟携手29家企业展示TD产业最新进展

＂2010年中国国际信息通信展览会＂上,TD产业联盟携手华为、新邮通、播思、联想、海信、海尔、天宇、英华通、熊猫、夏新、联发科技、联芯、STE、展讯、广晟、创毅视讯、重邮、珠海鼎利、星河亮点、中创信测、日讯、艾法斯、众友、百林通信、三维科技、京信、国信通信、通宇和上海创远等二十九家TD产业链重要代表企业精彩亮相本次展览。     

手机电视全球峰会深圳落幕

由中瑞国际展览公司等单位联合主办的“2006移动电视（手机电视）国际高峰论坛暨展示交流会”（简称“Mobile TV2006”）于9月2日在深圳会展中心梅花厅落幕。广电和电信系统20多位专家、清华研究院、韩国电子通信研究院（DMB）、信息产业部电信研究院、Intel、Samsung、ADI、Infineon、Frontier Silicon、Thomason、Megachips、Zoran、意法半导体、德州仪器、哈里斯、爱迪德、矽玛特、展讯、中星微、珠海矩力、法国迪康、MOTO、SONY、Samsung、飞利浦、NEC．松下、LG、阿尔卡特、华为、中兴、普天、大唐、UT斯达康、富士康、联想、海尔、海信、TCL、创维、康佳、天时达、国虹、步步高、德赛、宇阳、友利通、万利达、创维、天时达、松讯达、、华禹、金立、运营商DoCoMo、法国电信、台湾威宝电信、央视国际、GGTV、凤凰卫视、华娱卫视、文广传媒、南方传媒、深圳力合、风网科技、互联天下、神州掌讯及北京、上海、江苏、江西、福建、广东、山东、浙江、安徽、湖北、香港等40多个城市移动运营机构等产业链高层代表667人参加“Mobile TV2006”，会议就各标准在中国的运营状态、商业模式、国际合作、研发设计、终端产品转型、内容服务及产业链的打造展开尖峰对话。与业内共同分享全球移动电视产业的发展现状和新的技术成果，同时为各大公司参与亚洲及中国的移动电视产业合作提供了一个面对面的交流平台。     

本刊来稿须知

1．本刊设有专题论坛、专业改革、教学改革、科研报告、通讯动态、电子信息、电子科学、电气工程、自动控制、科技应用、课程改革、教学研究、教材建设、实践教学、教学方法、研究生教学、毕业设计、机辅教学、争鸣论坛、高职教育、教学仪器及电坛人物等栏目。     

本刊来稿须知

1．本刊设有专题论坛、专业改革、教学改革、科研报告、通讯动态、电子信息、电子科学、电气工程、自动控制、科技应用、课程改革、教学研究、教材建设、实践教学、教学方法、研究生教学、毕业设计、机辅教学、争鸣论坛、高职教育、教学仪器及电坛人物等栏目。     

Reduction of earthquake risk in the United States: bridging the gapbetween research and practice

Continuing efforts under the auspices of the National Earthquake Hazards Reduction Program are under way to improve earthquake risk assessment and risk management in earthquake-prone regions of Alaska, California, Nevada, Washington, Oregon, Arizona, Utah, Wyoming, and Idaho, the New Madrid and Wabash Valley seismic zones in the central United States, the southeastern and northeastern United States, Puerto Rico, Virgin Islands, Guam, and Hawaii. Geologists, geophysicists, seismologists, architects, engineers, urban planners, emergency managers, health care specialists, and policymakers are having to work at the margins of their disciplines to bridge the gap between research and practice and to provide a social, technical, administrative, political, legal, and economic basis for changing public policies and professional practices in communities where the earthquake risk is unacceptable     

Graphene‐Based Nanomaterials: Synthesis,Properties, and Optical and Optoelectronic Applications

Graphene, a two‐dimensional, single‐atom‐thick carbon crystal arranged in a honeycomb lattice, shows extraordinary electronic, mechanical, thermal, optical, and optoelectronic properties, and has great potential in next‐generation electronics, optics, and optoelectronics. Graphene and graphene‐based nanomaterials have witnessed a very fast development of both fundamental and practical aspects in optics and optoelectronics since 2008. In this Feature Article, the synthesis techniques and main electronic and optical properties of graphene‐based nanomaterials are introduced with a comprehensive view. Recent progress of graphene‐based nanomaterials in optical and optoelectronic applications is then reviewed, including transparent conductive electrodes, photodetectors and phototransistors, photovoltaics and light emitting devices, saturable absorbers for ultrafast lasers, and biological and photocatalytic applications. In the final section, perspectives are given and future challenges in optical and optoelectronic applications of graphene‐based nanomaterials are addressed.     

Advanced Compressible and Elastic 3D Monoliths beyond Hydrogels

3D monoliths have undergone great progress in the past decades in scientific and engineering fields. Especially, compressible and elastic 3D monoliths (CEMs) hold great promise in a series of applications, such as pressure/strain sensing, energy storage, oil/water separation, and thermal insulation, attributed to their unique mechanical properties and multifunctionality (e.g., conductivity, thermal stability, and high adsorption capacity). Recently, plenty of advanced CEMs have been developed from 1D and 2D building blocks, polymers, and biomass via various methods. Herein, the latest progress in controllable design and preparation of advanced CEMs, which mainly refer to aerogels, sponges, and foams, are reviewed in terms of their structural units and applications. The relationship between structure and mechanical performances of CEMs is discussed. Moreover, their applications in sensing, energy storage and conversion, water treatment, fire‐resistance, and electromagnetic interface shielding are presented. Finally, the challenges and future opportunities of CEMs are also discussed.     

单目图像序列光流三维重建技术研究综述

由单目图像序列光流重建物体或场景的三维运动与结构是计算机视觉、图像处理与模式识别等领域的重要研究内容,在机器人视觉、无人机导航、车辆辅助驾驶以及医学影像分析等方面具有重要的应用。本文首先从精度与鲁棒性等方面对单目图像序列光流计算及三维重建技术近年来取得的进展进行综述与分析。然后采用Middlebury测试图像序列对HS、LDOF、CLG-TV、SOF、AOFSCNN 和 Classic ＋NL 等典型光流算法以及 Adiv、RMROF、Sekkati 和DMDPOF等基于光流的间接与直接重建方法进行实验对比分析,指出各对比方法的优点与不足,归纳各类方法的性能特点与适用范围。最后对利用分数阶微分模型、非局部约束、立体视觉以及深度线索解决亮度突变、非刚性运动、运动遮挡与模糊情况下光流计算及重建模型的局限性与鲁棒性问题进行总结与展望。     

The past, present, and future of image and multidimensional signalprocessing

The field of image and multidimensional signal processing began as a field of strong theoretical framework based on mathematics, statistics, and physics. Later, with advances in computing, memory, and image-sensing technology, techniques developed for image enhancement, still and moving image compression, image understanding gave this field a solid base of practical applications. Furthermore, the exploding growth of the Internet and the ubiquity of images and video, the field of image and multidimensional signal processing is becoming more and more exciting. Topics covered in the article include: multidimensional signal-processing theory, image acquisition, image transforms, image modeling, image enhancement and restoration, image and video analysis, processing, coding, hardware and software implementation issues, and computed imaging     

Cathode-ray-tube phosphors: Principles and applications

Principles and applications of phosphors in cathode-ray tubes are discussed. Among the basic parameters covered are: back-scattering, secondary emission, penetration, electronic transitions, dead voltage and energy, and optical efficiencies. Various relevant aspects of television kinescopes are discussed, including commercially used phosphor characteristics and screening techniques, radar tubes, image tubes, voltage-dependent color displays, flying-spot and beam-indexing tubes, projection, printing, and infrared stimulation systems. Colorimetry and photometry, as applied to phosphors, are discussed, including the CIE and UCS systems.     

Oscillatory Behavior of Respiratory Gas Exchange in Resting Man

This study deals with the dynamics of respiratory gas carbon dioxide concentration are three, ten, twenty, and thirty to forty-five minutes and two hours; in oxygen concentration, three, ten, twenty, and thirty minutes and one and four hours; and in respiratory quotient, one, five, ten, and fifteen minutes and two to four hours. exchange in resting man. Spectral analyses are performed on time series representing four-hour continuous records of ventilation, carbon dioxide release, oxygen takeup, end tidal carbon dioxide concentration, end tidal oxygen concentration, and respiratory quotient. Results imply that the temporal behavior of each of these six variables can be characterized by a superposition of a finite set of self-sustained almost periodic oscillations with periods in the range from one minute to four hours and time dependent stochastic variation. In ventilation, carbon dioxide release, and oxygen takeup, individual components have amplitudes of between five and ten percent of mean values and nominal periods of one, four, ten, and twenty minutes and one and two to four hours. Components in oxygen concentration, carbon dioxide concentration, and respiratory quotient have amplitudes of between two and four percent of mean values.     

我国海洋测绘市场、海洋测绘技术综述

海洋测绘是海洋空间地理信息测量与表达的总称.目前,我国海洋测绘市场逐渐形成,迫切需要高质量的海洋测绘技术提供服务.海洋测绘产业大致分为海洋基础测绘、海洋资源开发、海洋科学研究与管理、海岸带生态修复与海洋环境保护、海上交通运输等.海洋测绘技术包括海洋大地测量、海洋导航定位技术、水深测量、海岸带地形测量、海洋遥感、海底底质...     

Technology for the 1990s

A forecast of the practical and promising devices, circuits, and systems that can be expected in the next one to five years is presented. It is based on a survey of a group of distinguished practitioners throughout the industry. The forecasts cover the areas of lasers and electrooptics, integrated optoelectronics, electron devices, digital integrated circuits, high-frequency and microwave devices, VLSI signal and image processing systems, analog ICs and signal processing, power electronics and systems, neural systems and applications, and medical image and signal processing. A particularly optimistic outlook is seen for lasers, fiber optics, optoelectronic ICs, and optical switching and processing. Digital ICs and power electronics are also expected to make steady gains. In addition, flat panel displays will attract a fair amount of activity, with the liquid-crystal and electroluminescent types emerging as the leaders in this decade. Looking further out, advances in artificial and biological neural systems represents a natural extension to more sophisticated problem-solving in speech processing, vision and communications     

智慧党建在高校党员管理中的应用研究

以全国党员管理信息系统、学习强国、红星云、长沙智慧党建系统等信息化平台为例,旨在从智慧党建的概念和内涵着手,在现有平台基础上,通过创新切实地规划运用,探索构建涵盖基础信息、学习教育、组织活动、研讨交流、党群服务等五大功能组合的智慧党建应用体系,促使高校党建工作与教学管理、学生辅导、教师服务等工作有机融合,真正发挥高校党建工作的示范、带动、引领作用。