辽宁移动BOSS系统的建设思路和特点

作为辽宁移动最重要的业务支撑系统，BOSS系统不但能够承担现有的移动业务，同时也能支持未来的移动新业务。真正能够在BOSS系统上实现：统一的接入平台，多种接入方式；统一的客户信息资料；统一的订单管理；统一的服务管理；统一的业务管理。BOSS系统能够通过多种接入方式为用户提供统一服务的定购．开通，对服务使用记录的统一采集、计费、帐务管理等。     

关于数字电视系统建立统一授权平台的研究

现有数字电视系统无法适应整合和组网需要,为解决组网和统一问题,本文提出充分利用现有数字电视系统,对条件接收(CA)授权接口进行统一管理,构建统一授权平台的思路,通过统一授权平台为用户管理系统(SMS)、批量授权、短信点播、交互电视等多种应用系统提供服务,实现省级CA系统的统一。     

有线数字电视交互系统研究

平台化、标准化的有线数字电视交互系统方案,保证多种业务有统一的基础平台。使得多种业务仅通过终端机顶盒。实现统一门户、统一认证、统一鉴权。同时给出了VOD业务系统在该平台的实现。     

支撑集约化运营的终端管理实现方案

针对中国电信移动终端管理、销售和结算等关键环节,对现有系统的渠道管理、终端验货入库、库存调拨、串码管理、终端与套餐销售流程进行优化和调整,完成中国电信集团公司集约化管理的系统建设。为有效避免串货、重复获取终端补贴及话费补贴等情况的发生提供系统支撑,确保终端实现物流与数据流的一致性,满足集团提出的实现全集团统一系统支撑、统一渠道组织、统一销售政策、统一结算规则和统一传播方案的要求。     

统一认证平台的构架与应用

1.简介SMG统一认证平台系统是一套基于微软统一认证技术的系统平台。该平台为上海文广新闻传媒集团内各类信息系统提供用户身份管理、身份验证、用户授权等一整套统一认证与授权的管理系统。他     

多平台时空统一研究

结合美国协同作战（Cooperative Engagement Capability,CEC）系统、防御系统的最新发展情况,进行了时空统一的需求分析,给出了时空统一的概念、时空统一总体架构以及时空统一处理过程。结合典型应用场景进行时空统一处理方法的仿真,验证了方法的有效性。     

铁路企业统一身份认证平台的设计与实现

针对铁路企业工作人员使用多个应用系统需要同时记忆多套用户账号信息的现状,文中基于铁路统一用户管理系统的用户数据,设计了一种铁路应用系统用户的统一身份认证系统。该系统采用单点登录、Token、Cookie、Session共享等技术,实现了用户信息与应用系统的分离、统一用户管理、统一认证、一处登录、处处共享等功能,从根本上解决了不同应用系统重复维护用户信息的问题,使用户能够更便捷地访问不同的应用系统,并保证了不同应用系统间用户信息的一致性、安全性和共享性。     

CDMA接入统一IMS系统研究

统一IMS的研究已成为IMS演进发展的重要趋势,也成为全业务运营商实际IMS网络部署过程中亟需考虑的一大问题。文章在分析CDMA接入统一IMS系统可行性的基础上,给出了统一IMS系统的功能架构,并对CDMA接入统一IMS系统的媒体编解码转换、多接入认证方式以及语音呼叫连续性等关键技术问题进行了探讨,最后指出了统一IMS系统有待继续研究的方向。     

关于有线电视业务统一运营支撑系统的几点看法

由于历史原因,广电运营商存在着同时使用多个运营支撑系统的情况,如数字电视运营支撑系统、宽带业务系统、互动业务系统、增值业务系统等,不仅造成业务流程复杂、数据冗余,而且影响正常业务的开展,不利于市场快速响应,所以建立统一跨业务的运营支撑系统来满足市场需求已迫在眉睫,通过讲述建立统一运营支撑系统的意义、优势来说明建立统一运营支撑系统的迫切性。     

BSS融合系统割接实施方案

BSS融合系统(BSS4.2)是为实现IT支撑系统“一副面孔、一套语言、统一能力”的目标.该系统具备了统一销售的能力,加强了对融合业务的支撑能力,是一张统一的固网移动融合业务系统.     

Elemental Compositions of Over 80 Cell Phones

Over the last few years, 85 cell phones have been disassembled, ground up, dissolved, and analyzed for elemental content, mainly for information about the metals present in the phones, but also for some metalloids and nonmetals. The following list of 38 elements were detected in some or all of the phones: Be, B, Mg, Al, Ti, V, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Y, Nb, Pd, Ag, In, Sn, Sb, Te, Ba, Ta, W, Pt, Au, Tl, Pb, Bi, Pr, Nd, Sm, Eu, Gd, Tb, Dy, and Er. Cadmium was never detected. This paper discusses the methods used for carrying out the analysis, proposes possible sources in the telephones for the elements of interest, the reasons for the interest in most of the elements, and method repeatability.     

Zero/Positive Capacities of Two-Dimensional Runlength-Constrained Arrays

A binary sequence satisfies a one-dimensional$(d_1, k_1, d_2, k_2)$runlength constraint if every run of zeros has length at least$d_1$and at most$k_1$and every run of ones has length at least$d_2$and at most$k_2$. A two-dimensional binary array is$(d_1, k_1, d_2, k_2; d_3, k_3, d_4, k_4)$-constrained if it satisfies the one-dimensional$(d_1, k_1, d_2, k_2)$runlength constraint horizontally and the one-dimensional$(d_3, k_3, d_4, k_4)$runlength constraint vertically. For given$d_1, k_1, d_2, k_2, d_3, k_3, d_4, k_4$, the two-dimensional capacity is defined as $$displaylines C(d_1, k_1, d_2, k_2; d_3, k_3, d_4, k_4) hfillcr hfill=, lim_m,n rightarrow infty log_2 N(m, n ,vert, d_1, k_1, d_2, k_2; d_3, k_3, d_4, k_4)over mn $$ where $$N(m, n ,vert, d_1, k_1, d_2, k_2; d_3, k_3, d_4, k_4)$$ denotes the number of$m times n$binary arrays that are$(d_1, k_1, d_2, k_2; d_3, k_3, d_4, k_4)$-constrained. Such constrained systems may have applications in digital storage applications. We consider the question for which values of$d_i$and$k_i$is the capacity$C(d_1, k_1, d_2, k_2; d_3, k_3, d_4, k_4)$positive and for which values is the capacity zero. The question is answered for many choices of the$d_i$and the$k_i$.     

基于51单片机的多功能电子时钟设计

单片机体积小、重量轻、抗干扰能力强、环境要求不高、价格低廉、可靠性高、灵活性好、深受初学者喜欢。以STC90C58为核心控制芯片,DS1302为时钟芯片,DS18B20采集温度,完成多功能电子时钟的设计。该设计能够准确显示年、月、日、星期、时、分、秒及温度,通过按键可以调整年、月、日、星期、时、分、秒、12/24小时转换、整点提示以及闹钟,还可显示阴阳历。     

Better breast cancer detection

X-rays go digital, computers read film, and chemicals mark tumors, but will these new technologies make it in the clinic? The imaging technologies considered for breast cancer include film-screen mammography, full field digital mammography, ultrasound, magnetic resonance imaging, scintimammography, thermography, electrical impedance imaging, optical imaging, electric potential measurement, positron emission tomography, novel ultrasound techniques, elastography, magnetic resonance spectroscopy, thermoacoustic computed tomography, microwave imaging, Hall-effect imaging and magneto-mammography     

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     

New binary one-generator quasi-cyclic codes

Sixteen new binary quasi-cyclic linear codes improving the best known lower bounds on minimum distance in Brouwer's tables are constructed. The parameters of these codes are [102, 26, 32], [102, 27, 30], [142, 35, 40], [142, 36, 38] [146, 36, 40], [170, 16, 72], [170, 20, 66], [170, 33, 52] [170, 36, 50], [178, 33, 56], [178, 34, 54], [182, 27, 64] [182, 36, 56], [186, 17, 76], [210, 23, 80], [254, 22, 102] Sixty cyclic and thirty quasi-cyclic codes, which attain the respective bounds in Brouwer's table and are not included in Chen's table are presented as well.     

Recent Advances in Hybridization,Doping, and Functionalization of 2D Xenes

The emerging monoelemental 2D materials named as Xenes including borophene, silicene, germanene, stanene, phosphorene, arsenene, antimonene, bisthumene, selenene, and tellurene, have attracted rising attention experimentally and theoretically. Because of their excellent and versatile physical, chemical, electrical, and optical advantages, Xenes have been shown or have been predicted to have excellent performance in nanotechnology applications, addressing challenges and advances in electronics, energy, healthcare, and environment. In this review, the basic fundamentals in the classification of the periodic table group and the synthesis methods for the emerging materials are summarized. Then, the hybridization, doping and functionalization of 2D Xenes, and their corresponding applications are presented. Furthermore, a summary of research progress on 2D Xenes and the challenges and perspectives for their further development are discussed.     

基于TM影像光谱指数的棉花病害严重度估测

通过获取多时相试验区TM影像和大田同步调查棉花黄萎病,将TM影像光谱指数与病害严重度进行相关分析,建立棉花病害严重度估测模型.结果表明:随着病害严重度的增加,TM影像光谱指数B2,B4,SATVI,OSAVI,MSAVI,TSAVI,SVNSWI,SNSWIa,SNSWIb,SVNI,DNSIa,DNSIb,NDSWI...     

CompactPCI总线技术及系统设计

CompactPCI总线具有高总线带宽、高性能、支持热插拔，满足高速度、高性能尤其是复杂控制算法并要求可视化操作的应用场合的功能需求。首先，对CompactPCI总线技术在扩展性、封装和连接、被动式背板、热插拔和高性能等方面的技术特点。然后对其核心技术——热插拔技术做了简要的介绍，并在此基础上，对CompactPCI系统设计的相关问题进行了详细的论述。最后指出CompactPCI总线技术在工业、热力、石化、冶金、交通、现代通讯、核能、航空、航天、军事等领域具有广阔的应用前景。