共查询到20条相似文献,搜索用时 109 毫秒
1.
介绍了日本电气用品安全准入法律体系;然后基于《电气用品安全法》解读了锂离子电池安全准入的详细业务流程;并归纳分析了支撑业务流程的安全标准. 相似文献
2.
3.
《家庭影院技术》编辑部 《家庭影院技术》2009,(4):69-71
目前,中国的家庭影院还处于初级普及阶段,但在一海之隔的日本却已经相当普遍。最近日本《HOME THEATER》杂志就带来了日本首届关于家庭影院领域的评选榜单。“HOME THEATER GRAND PRIX”大奖主要包括Best Installation of the Year(全年最佳装修设计大奖)以及Best Home Theater Products(最佳家庭影院产品大奖)。其中Best Installation of the Year(全年最佳装修设计大奖)的评选范围从日本《HOME THEATER》杂志2008年41期~44期中进行选取。 相似文献
4.
5.
6.
7.
《电子科技》2003,(18)
目前在XBOX上最受期待的网络游戏,由日本Level-5公司开发的XBOX超大作网络游戏《真梦生活Online》(TureFantasyLiveOnline)的期待人气一直居高不下,也被微软视为扭转XBOX目前在日本低迷气势的重量级大作。日前《真梦生活Online》在日本福冈市的一场游戏试玩会也公布了最新内容,而且游戏规模比目前日本排名第一网络游戏《FFⅪ》还大两倍喔!!按照Level-5公司的规划,《真梦生活Online》将是以庞大的游戏世界观,并让玩家充分融入“虚拟游戏生活”而设计的新形态网络游戏,有让人耳目一新的3D卡通视觉风格、支援网路语音交谈,加上超庞大… 相似文献
8.
1概况
日本经济产业省2008年发布了《日本能源领域技术战略路线图》、《冷地球能源革新技术计划》和《日本节能技术战略2008》,提出:从2020年到2030年,将日本最终能源消费效率提高30%;将石油对外依存度降低到40%;到2050年,使日本温室气体(CO2)排放减少一半。 相似文献
9.
10.
《信息安全与通信保密》2015,(2):12
【据日本《读卖新闻》2015年1月10日报道】日本"赛博安全战略本部"的事务执行机构"内阁赛博安全中心"于1月9日正式成立,该中心在政府的赛博攻击应对过程中,发挥着"司令塔"的作用。该中心除进一步强化了已有组织机构的权限外,还旨在扩充2020年东京奥运会和残奥会举办期间的赛博安全机制,同时制定了有效利用民间赛博安全力量的方针。身为"赛博安全战略本部"最高负责人的内阁官房长官菅义伟,在该中心的成立仪式 相似文献
11.
12.
钾离子电池以其优越的性能得到越来越多的重视和应用,但其对充电供电保护电路有着极高的要求.详细介绍锂离子电池的特性,根据其对保护电路要求高的特点,采用8031单片机做保护控制,对锂离子电池进行充电供电管理和保护.对锂离子电池充电供电保护方法和注意事项进行了分析,给出了应用电路.为基于单片机系统的锂离子电池充电供电保护电路的应用提供了一种参考. 相似文献
13.
可编程电池管理芯片bq26500的原理及应用 总被引:1,自引:1,他引:0
bq26500是TI公司生产的锂离子电池、锂聚合物电池充电、放电控制和监控芯片。该器件集数据采集、存储及可编程输入/输出端口于一体,而且功能强大、结构简单。文中介绍了bq26500的主要特性,并给出了bq26500的典型应用电路及软件设计流程。 相似文献
14.
15.
依据GB4943—2001《信息技术设备的安全》中对电池的要求,选取了较为典型的可充电式锂离子电池进行详细介绍,分析了具体的锂离子电池充放电控制电路的安全测试方法,为锂离子电池的测试提供了参考。 相似文献
16.
Design issues for intelligent buildings are examined from the viewpoint of the Japanese construction industry. Cultural considerations for such buildings are discussed, with emphasis on the creation of amenities for the human occupants of the building. The need for an infrastructure that is adaptable to future needs is stressed. As an example, a recently built office tower is described 相似文献
17.
Ma H. Fang S.J. Lin F. Tan K.-S. Shibata J. Tamura A. Nakamura H. 《Solid-State Circuits, IEEE Journal of》1998,33(9):1297-1305
A newly developed GaAs upconverter MMIC with an automatic gain control (AGC) amplifier is presented. The design objectives, considerations, problems, and their solutions are described. The circuit is designed for a 1.9 GHz radio-frequency transceiver for the Japanese Personal Handyphone System applications. The features of the upconverter are: (1) on-chip 50 Ω impedance matching for all AC input and output signals; (2) a doubly balanced Gilbert cell and a two-stage AGC amplifier with matching circuits that provide 23.0 dB conversion gain, -39 dBc LO suppression, -23 dBc image suppression, and 30 dB gain control; (3) an adjacent channel power of -70 dBc, and (4) a die size of only 2.87 mm2 (2.52 mm×1.14 mm) 相似文献
18.
Zhi Ning Chen Xuan Hui Wu Hui Feng Li Ning Yang Chia M.Y.W. 《Antennas and Propagation, IEEE Transactions on》2004,52(7):1739-1748
This paper addresses two vital design considerations in ultrawide-band radio systems. One is that radiated power density spectrum shaping must comply with certain emission limit mask for coexistence with other electronic systems. Another is that the design of source pulses and transmitting/receiving antennas should be optimal for the performance of overall systems. The design of source pulses and transmitting/receiving antennas under the two considerations is discussed. First, the characteristics of transmitting/receiving antenna systems are described by a system transfer function. Then, the design of source pulses and transmitting antennas are studied based on the considerations for emission limits. Finally, the design of transmitting and receiving antennas are investigated in terms of pulse fidelity and system transmission efficiency. In the studies, thin wire dipoles with narrow bandwidths and planar dipoles with broad bandwidths are exemplified. 相似文献
19.
Deock Gil Oh Pansoo Kim Jun Jeong Song Soon Ik Jeon Ho-Jin Lee 《Wireless Communications, IEEE》2005,12(5):91-97
Convergence between wireless networks is the main trend in current and future wireless communications. The distinct advantage of satellite and terrestrial network integration is the possibility to provide ubiquitous multimedia services in vehicles at any location. The key design considerations of mobile broadband satellite access technologies are given in this article. After presenting the conceptual models of a system and services, the design issues of satellite network synchronization and burst demodulation are described. The design considerations of medium access control, resource management, capacity, and buffer controls for internetworking are given. Also, the active antenna issues are provided along with a sample design. 相似文献
20.
Design considerations for subscriber multiplexed (SCM) systems distributing multichannel analog/digital signals are reviewed. In particular, video distribution schemes based on lightwave transmission technologies are discussed. The two most important system design considerations in an SCM system are the control of intensity noise and nonlinear distortions. Intensity noise characteristics and degradation caused by optical reflections are discussed. Laser and detector linearity requirements are reviewed. System signal-to-noise ratio analysis is performed. Design considerations for receivers for SCM systems are reviewed, and various system applications are examined 相似文献