《模拟城市》(SimCity)是美国艺电出品的一个城市建造(City-building game)的电子游戏，首部作品发售于1989年，是Maxis的第一个产品。最初发行的平台为DOS，之后又陆续推出了麦金塔、Windows与超级任天堂等平台上的版本。当前该系列的版权所有者以及发行商为美国艺电(EA)。 2008年1月10日，EA以GPL协议开放原始版本，更名为Micropolis，特别针对OLPC。 在2013年EA/Maxis发布了全新的《模拟城市》系列游戏，将游戏名称定为与1989年相同的名称《模拟城市》，并且通过Origin平台才可以进行游戏。在Maxis被问道这款游戏是否叫做“模拟城市5”的时候，Maxis说，这款游戏不是《模拟城市4》的迭代，而是一款全新的游戏，我们叫他《模拟城市》。国内外的《模拟城市》粉丝们将它叫做《模拟城市(2013)》或者“SC(2013)”。 为了相互区别Maxis的第一部和第五部作品，本词条用游戏发布时间分别命名为《模拟城市(1989)》和《模拟城市(2013)》。EA/Maxis官方目前分别称之为：Micropolis和SimCity(港台译名：模拟城市)。
上传时间： 2016-10-22
上传用户：86kl
A major societal challenge for the decades to come will be the delivery of effective medical services while at the same time curbing the growing cost of healthcare. It is expected that new concepts-particularly electronically assisted healthcare will provide an answer. This will include new devices, new medical services as well as networking. On the device side, impressive innovation has been made possible by micro- and nanoelectronics or CMOS Integrated Circuits. Even higher accuracy and smaller form factor combined with reduced cost and increased convenience of use are enabled by incorporation of CMOS IC design in the realization of biomedical systems. The compact hearing aid devices and current pacemakers are good examples of how CMOS ICs bring about these new functionalities and services in the medical field. Apart from these existing applications, many researchers are trying to develop new bio-medical solutions such as Artificial Retina, Deep Brain Stimulation, and Wearable Healthcare Systems. These are possible by combining the recent advances of bio-medical technology with low power CMOS IC technology.
上传时间： 2017-02-06
上传用户：linyj
内容简介 介绍了一般微处押器核鲋设计原理、基于微处邦器核的SoC设计的其本機念甜方法,通过对ARM系列处理器核和 CPU核的详小描述,说明微处理器及外接口的设计原理和方法。同时也综述了ARM系列她理器核和最新ARM核的 研发战果以政ARM和Thmb踹积模型,对SC设计中涉及到的行储器层次、 Cache存储器管诬、片上总线片|:调和 产品测试等主要间黥进行了论述。在此基础上给出了几个基于ARM核的SoC嵌人式应用的实例。最后对基于异步设计 的ARM核 AMCLET及异步SUC子系统 AMUlET3打的研究进行了介绍 木书的特点是将基于ARM微处理器核的SC设计和实际恢人式系统的应用集成于一体,对于基于ARM核的S设计 和嵌λ式系统开发者来说是一本很好的参考手册。可用作计算机科学拉术与应用电气T程、电∫科学与技术专业科牛及硕 研究生的教材,也可作为从事集成电路设计的[程技术人员、于ARM的嵌入式系统应用开发技术入员的参考书。
上传时间： 2020-04-02
上传用户：hongpixiaozhu
Without conceding a blemish in the first edition, I think I had best come clean and admit that I embarked on a second edition largely to adopt a more geometric approach to the detection of signals in white Gaussian noise. Equally rigorous, yet more intuitive, this approach is not only student-friendly, but also extends more easily to the detection problem with random parameters and to the radar problem
标签： Communication Foundation Digital in
上传时间： 2020-05-26
上传用户：shancjb
Today’s wireless services have come a long way since the roll out of the conventional voice-centric cellular systems. The demand for wireless access in voice and high rate data multi-media applications has been increasing. New generation wireless communication systems are aimed at accommodating this demand through better resource management and improved transmission technologies.
标签： Radio Cognitive Software Defined
上传时间： 2020-05-26
上传用户：shancjb
Mobile communication has gained significant importance in today’s society. As of 2010, the number of mobile phone subscribers has surpassed 5 billion [ABI10], and the global annual mobile revenue is soon expected to top $1 trillion [Inf10]. While these numbers appear promising for mobile operators at first sight, the major game-changer that has come up recently is the fact that the market is more and more driven by the demand for mobile data traffic [Cis10].
上传时间： 2020-05-27
上传用户：shancjb
Nature is seldom kind. One of the most appealing uses for radio- telephone systems—communication with people on the move—must over- come radio transmission problems so difficult they challenge the imagina- tion. A microwave radio signal transmitted between a fixed base station and a moving vehicle in a typical urban environment exhibits extreme variations in both amplitude and apparent frequency.
标签： Communications Microwave Mobile
上传时间： 2020-05-28
上传用户：shancjb
This book presents millimeter wave communication system design and analysis at the level to produce an understanding of the interaction between a wireless system and its front end so that the overall performance can be predicted. Gigabit wireless commu- nications require a considerable amount of bandwidth, which can be supported by millimeter waves. Millimeter wave technology has come of age, and at the time of writing the standards of IEEE 802.15.3c, WiGig, Wireless HD TM , and the European Computer Manufacturers Association have recently been finalized.
标签： Communication Millimeter Systems Wave
上传时间： 2020-05-28
上传用户：shancjb
Mobile and wireless application development has come a long way in the past few years. It has progressed beyond the hype of wireless Web applications for consumers to the reality of high-value mobile applications for corporate users. Opportunities abound for creating new mobile and wireless applications that provide vital benefits to any business. A sampling of these benefits includes increased worker productivity, reduced processing costs, heightened accuracy, and competitive advantage. In contrast is the concern that developing mobile and wireless applications will involve many new technologies and concepts that many corporate developers are still learning to use.
标签： Essentials Wireless Mobile Design and
上传时间： 2020-05-30
上传用户：shancjb
The ever-increasing demand for private and sensitive data transmission over wireless net- works has made security a crucial concern in the current and future large-scale, dynamic, and heterogeneous wireless communication systems. To address this challenge, computer scientists and engineers have tried hard to continuously come up with improved crypto- graphic algorithms. But typically we do not need to wait too long to find an efficient way to crack these algorithms. With the rapid progress of computational devices, the current cryptographic methods are already becoming more unreliable. In recent years, wireless re- searchers have sought a new security paradigm termed physical layer security. Unlike the traditional cryptographic approach which ignores the effect of the wireless medium, physi- cal layer security exploits the important characteristics of wireless channel, such as fading, interference, and noise, for improving the communication security against eavesdropping attacks. This new security paradigm is expected to complement and significantly increase the overall communication security of future wireless networks.
标签： Communications Physical Security Wireless Layer in
上传时间： 2020-05-31
上传用户：shancjb
