The Forecasting of the Development of Postal Services

1IntroductionInrecentyears,alongwiththereformofChina'seconomy,thesituationwithwhichthepostalenterprisesarefacedhavechangedalotinChina.Marketcompetitionsareget-tingmoreandmorefierce.Itisveryimportanttostrengthenforecastingofthedevelopmentofpostalservicesforimprovingthecompetitivecapacityofpostalenterprises,reducingthecostofmanpower,materialresourcesandfinancialowingtothemistakesofplananddecision-making.2TheRelationshipBetWeentheDevelopmentofNationalEconomyandthePostalServicesThenationaleco…     

The k-Diameter of a Kind of Circulant Graph

The terminology and notion in this paper are similar to Ref.[1], all graphs discussed here are finite and simple. The diameter d(G) of a graph G is the maximal distance between pairs of vertices of G. The connectivity of G is the minimum number of vertices needed to be removed in order to disconnect the graph. When a network is modeled as a graph,a vertex represents a node of processor (or a station) and an edge between two vertices is the link (or connection) between those two processors. I…     

The TOP5 MODELS of The Moment这些超模GIRLS

暂鲜出炉的5月刊美国版,以"The Faces of the Moment"为题,集结了当下最有潜力的9位超模拍摄封面.这九张面孔的位置,一石激起千层浪.可无论怎样,她们只能算排上了名,和那几位超越江湖的TOPmodels相比,还真是小菜一味.     

The Evolution of Personal Mobile Communications

ＴｈｅＥｖｏｌｕｔｉｏｎｏｆＰｅｒｓｏｎａｌＭｏｂｉｌｅＣｏｍｍｕｎｉｃａｔｉｏｎｓＤｒ．Ｉ．Ｓ．Ｇｒｏｖｅｓ（ＢＴＬａｂｏｒａｔｏｒｉｅｓ，ＭａｒｔｌｅｓｈａｍＨｅａｔｈＩｐｓｗｉｃｈ，ＩＰ５７ＲＥ，Ｅｎｇｌａｎｄ）Ａｂｓｔｒａｃｔ：ＷｉｔｈｉｎＥ...     

The Eficiency of a Free-electron laser

ＴｈｅＥｆｉｃｉｅｎｃｙｏｆａＦｒｅ┐ｅｌｅｃｔｒｏｎｌａｓｅｒＺｈｕＪｉａｑｉｎｇＬｉｕＹａｎｓｈｅｎ（ＤｅｐａｒｔｍｅｎｔｏｆＰｈｙｓｉｃｓ，ＣｅｎｔｒａｌＣｈｉｎａＮｏｒｍａｌＵｎｉｖｅｒｓｉｔｙ，Ｗｕｈａｎ４３００７０，Ｃｈｉｎａ）Ａｂｓｔ...     

The Classification of Degrees at the Level of Needs

1　ＲｅｖｉｅｗｏｆＮｅｅｄｓＴｈｅｏｒｙＮｅｅｄｓｄｅｒｉｖｅｄｆｒｏｍｃｏｎｃｒｅｔｅｉｎｄｉｖｉｄｕａｌｎｅｃｅｓｓｉ ｔｙｃａｎｂｅｄｉｖｉｄｅｄｉｎｔｏｄｉｆｆｅｒｅｎｔａｓｐｅｃｔｓａｓｍａｔｅｒｉａｌ,ｍｅｎｔａｌｉｔｙ,ｍｏｒａｌｉｔｙａｎｄｃｕｌｔｕｒｅ .Ａｎｄｔｈｅｓｅａｒｅａｌｌｅｓｔａｂｌｉｓｈｅｄｏｎｔｈｅｂａｓｉｓｏｆｔｈｅｄｅｖｅｌｏｐｍｅｎｔｃｏｕｒｓｅｏｆｍｏｄｅｒｎｃｉｖｉｌｉｚａｔｉｏｎ .ＡｃｃｏｒｄｉｎｇｔｏＭ .Ｈ .Ｍａｓｌｏｗ ,ｂｅｈａｖｉｏｒｉｓｐｒｏｄｕ…     

The Reform of Management System of Accountants in China

1　ＩｎｔｒｏｄｕｃｔｉｏｎＧｒｅａｔｄｅｖｅｌｏｐｍｅｎｔｓｈａｖｅｂｅｅｎｍａｄｅｉｎｅｃｏ ｎｏｍｉｃｓａｎｄｃｕｌｔｕｒａｌｓｉｎｃｅｔｈｅｂｅｇｉｎｎｉｎｇｏｆｅｃｏｎｏｍｉｃｒｅｆｏｒｍｉｎＣｈｉｎａｉｎ 1 978.Ｔｈｅｍｏｒｅｅｃｏｎｏｍｙｄｅｖｅｌ ｏｐｓ,ｔｈｅｍｏｒｅｉｍｐｏｒｔａｎｔｔｈｅａｃｃｏｕｎｔｉｎｇｂｅｃｏｍｅｓｉｎｅｃｏｎｏｍｉｃｄｅｖｅｌｏｐｍｅｎｔ[1 ] .Ｃｈｉｎａｈａｓｕｎｄｅｒｔａｋｅｎａｃ ｃｏｕｎｔｉｎｇｒｅｆｏｒｍｃｏｎｔｉｎｕａｌｌｙｉｎｏｒｄｅｒｔｏｐｅ…     

The Study of the Estimate of Polyspectra and Blind Equalizers

AbstractThemaincolltCfitofthisthesisconsistsoftWopad.Insignalprocessingscenario,autocorrelationtechniquesuppressesthephaseinformationofsignal,whilePOlyspectrapreservethephaseinformationofsignal.Therefore,inthepadone,weproposethemethodswhichidentifyon...     

The Study of the Estimate of Poly-Spectra and Blind Equalizer

Themainworksanddevotionofthisthesisconsistsoftwoparts.Insignalprocessingscenario,autocorrelationtechniquesuppressesthephaseinformationofsignal,whilepoly-spectrapreservethePhaseinformationofsignal.Therefore,inpartone,weproposethemethodswhichidentifiesoneandtwodimensionFIRsystemparametersonlyfromsystemoutputs.Theusefullineartransversalblindequalizer,decision-feedbackblindequalizer,andtheKalmanblindequalizerareproposedforthenon-minimumphasechannelofdatacommunicationinparttwo.Inpartone,theLSalg…     

The Usage of Two Dielectric Function Models

回顾了两个著名的广泛用于提取或参数化半导体和电介质材料光学常数的介电函数模型,即Forouhi-Bloomer和Tauc-Lorentz模型的历史、各种改进、各自特点和应用.在揭示它们内在特点和比较运用在具体实例的基础上,拓展和预言了这两个模型更为深入的和更为广泛的应用.     

真爱找麻烦The Ghosts of Girlfriends Past

影片讲述主角在同一时刻和三个女朋友通过电话会议分手，这就是康纳·米德，一个生性风流的花花公子。在哥哥的婚礼上，康纳唯一的行动目标就是赢得伴娘的芳心。然而死去的舅舅韦恩的鬼魂有另外的目的，他要让康纳领会到爱的真谛。这一艰巨的任务需要众多康纳前女友鬼魂的帮助。     

The Review of China Post''''s Informationizing Constructing

1 The Course of China Post s Informa-tionizing China Post experienced three stages in the course ofinformationizing:1.1 Starting stage :year 1994 to May 1998 Starting aroundthe year 1994 bythe former Ministryof Posts and Telecommunications . Constructing postal saving card Constructing newspaper and periodic ( N & P)computer system Constructing courier computer system1.2 Extensive constructing stage : May 1998 to June2001 The State Postal Bureau began to construct postal in-tranet in …     

The Application of ODE Method in MOP

ＴｈｅＡｐｐｌｉｃａｔｉｏｎｏｆＯＤＥＭｅｔｈｏｄｉｎＭＯＰ￥ＺｈｏｕＺｏｎｇｆａｎｇ（ＣｈｏｎｇｑｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＰｏｓｔｓａｎｄＴｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎ，Ｃｈｏｎｇｑｉｎｇ６３００６５，Ｐ．Ｒ．Ｃｈｉｎａ）Ａｂｓｔｒａｃｔ...     

The User-level Security of Mobile Communication Systems

1　ＩｎｔｒｏｄｕｃｔｉｏｎＢｏｔｈｔｈｅｆｉｘｅｄｔｅｌｅｐｈｏｎｅｎｅｔｗｏｒｋａｎｄｔｈｅｍｏ ｂｉｌｅｓｙｓｔｅｍｓ (ｅ .ｇ .,ＧＳＭ )ａｒｅｂｅｉｎｇｕｓｅｄｉｎｃｒｅａｓ ｉｎｇｌｙｆｏｒｎｏｔｏｎｌｙｓｐｅｅｃｈａｎｄｆａｘｃｏｍｍｕｎｉｃａｔｉｏｎｂｕｔａｌｓｏＩｎｔｅｒｎｅｔｓｅｒｖｉｃｅ .ＴｈｅｄｅｍａｎｄｆｏｒｔｈｅｆｉｘｅｄＩｎ ｔｅｒｎｅｔｓｅｒｖｉｃｅ ,ｎａｍｅｌｙｔｈｅＷｏｒｌｄＷｉｄｅＷｅｂ(ＷＷＷ ) ,ｈａｓｂｅｅｎｓｐｅｃｔａｃｕｌａｒ.Ｔｈｅｓｅｒｖｉｃｅｉｓｎｏｗ…     

The Effects of Time-Varying Channels on OFDM

1　IntroductionRecently ,OrthogonalFrequencyDivisionMul tiplexing (OFDM)usesFFTtomultiplexdatasym bolsoversubcarrierstoimplementhigh bit ratedatatransmissionoverwirelesschannels,andhasbeenappliedinseveralcommunicationfields,suchasDig italAudioBroadcast (DAB) ,DAB ,AsymmetricalDigitalSubscriberLoop ,IEEE 80 2 1 1a ,andHIPERLANⅡ .However,OFDMisverysensitivetofrequencyoffsetandfrequencyspreadowingtofrequencydifferenceandrelativemovementbetweentransmittersandreceivers.Thisisahind…     

The Application of NPs in WCDMA Systems

Recent efforts to add new services to the wide-band code division multiple accesses （WCDMA） system have increased interest in network processor （NP）-based routers that are easy to extend and evolve. In this paper, an application of NPs in routing engine module （REM） of radio network controller （RNC） in WCDMA system is proposed. The measuring results show that NPs have good performance and efficiency in routing traffic of the communication network and the simulation verifies the fast forwarding function of NPs.     

The Progress of P2P IPTV

1 Limitation of IPTV System with Client/Server Architecture IPTV services generally refer to theaudio/video contents transmittedthrough IP networks and received byTV. At present, telecom operatorsuse the manageable IP networkssupporting multicast to offer IPTVservices, including Live TV, Time- shiftedTV, Video on Demand (VOD) andinteractive data services.IPTVsystems in China are adoptingthe client/server architecture to offerunicast and on- demand (includes VoDand Time- shifted…     

The Son of DOOM 第一人称射击类游戏

丰富多变的场景,各种各样威力强大的武器,以及从人类到异形,甚至是庞大机械的众多敌人,玩家们将在这些复杂元素所构成的游戏中充分体验近乎于真实的感官刺激。这就是第一人称射击类游戏(简称:FPS游戏)的魅力所在。在适应了最初轻微的眩晕感之后,你会深深地喜欢上这种游戏,在游戏中发泄生活所带来的压抑感。尽管不断受到过于血腥或过于暴力的指责,但FPS游戏的魅力仍然让众多的游戏玩家为之痴迷,为之疯狂。     

The introduction of monochromators in electronmicroscope guns

IntroductionThe energy spread of the electron beam in an electron microscope plays a role only inadvanced applications.In electron energy loss spectroscopy ( EELS) it limits the ultimateenergy resolution.In high resolution transmission electron microscopy ( HREM) it determinesthe information limit of the contrast transfer function.In low voltage scanning electronmicroscopy ( LVSEM) ,it limits the obtainable probe size and thus the image resolution.Noelectron beam can be purely monochroma…     

The Advantage of Sensor Sealing Laser Welding

Laser Welding Inevitably Applied in Sensor Production Certain kinds of sensors such as pressure sensor, temperature sensor, optic-electronic sensor etc. utilize welding seal according to different application environment. With precision components and IC which is isolated by inert gas inside, these sensors should be sealed and able to resist the pressure. So the welding process must avoid distortion and harm to the components and IC.