移动数据业务的发展现状及前景

介绍了移动数据业务的发展现状及发展特点，并对移动数据业务中的移动支付和移动娱乐业务的发展前景进行了探讨。     

国际最新增值业务内容服务大点评

互联网与移动通信的融合发展，以及具备上网功能的各类移动多媒体终端．各种手持式个人信息终端的逐渐普及，为移动增值业务创造了极具增长潜力的市场空间。移动增值服务不仅在目前扮演着重量级的角色，也将是3G到来后移动运营商、内容提供商打拼的主战场。而对用户来说，移动增值服务在提供了越来越多便捷应用的同时，也在为人们增添乐趣，演绎和创造着更精彩的生活。     

移动IP中的切换策略

移动切换是移动IP中的关键技术之一，对于移动IP的性能有着重要的意义。对移动IPvl6基本切换策略、分级移动IPvl6切换策略和快速切换协议切换策略进行了分析，阐述了各种策略的流程，并重点探讨了它们的优缺点。最后给出了关于移动IP切换策略的一些结论和建议。     

移动网络行为的结构方程模型

手机等移动媒体的普及和无线3G的导入,提高了人们对于移动网络的利用率,兴起了"即时沟通"、"即时消费"和"即时兴乐"的移动一族。本文聚焦于移动群体的价值观与移动网络态度、移动网络应用之间的关联性。通过对于在校大学生的调查分析,确认了"价值观-移动网络态度-移动网络应用"之间的内在关联性以及关联机制,这能够为移动营销的消费者分析、广告投放和品牌定位提供战略导向。     

移动计算环境下的移动数字图书馆

随着信息时代的到来,人们提出了随时随地访问信息的要求,移动计算作为计算技术与无线通信技术的结合产物应运而生。文章从移动计算技术入手,研究移动数字图书馆系统的构建。首先介绍了移动计算技术,然后介绍了基于移动计算环境的移动数字图书馆建设及服务,将对信息技术环境下构建自由、个性、多元的移动数字图书馆产生积极影响。     

移动数据库中移动Agent技术的应用与研究

目前，移动数据库技术的研究与应用是数据库领域和移动计算领域的一个研究热点。首先介绍了移动数据库和移动Agent的特点，分析了基于移动Agent的移动数据库体系结构，最后提出一种基于移动Agent的移动查询处理模型并叙述了其实现过程。     

移动云服务模式下的移动互联网能力拓展

本文简要介绍了移动互联网、云服务及移动终端之间的相互关系,重点针对移动云服务概念进行了分析与研究,描述了移动云服务的各种模式及系统结构,并详细介绍了在移动云服务模式下移动互联网能力的拓展。     

移动视频业务的特征分析及其分类研究

文章从运营角度对移动视频业务特点进行了分析,将移动视频业务分为视频通信类、视频娱乐资讯类、视频UGC类、视频行业应用四大类,对其发展特性分别进行了详细阐述,并对我国运营商的移动视频业务发展提出建议。     

基于WAP的图书馆移动网站设计研究

本文主要讨论了图书馆移动网站设计的若干问题。首先介绍了国内外图书馆移动网站的建设情况。然后结合中国国家图书馆移动网站门户应用实际,从移动终端的特点、移动网站的受众群体、图书馆的读者需求以及遵循的标准等诸多方面讨论了图书馆移动网站的设计理念和方法。最后,提出了未来图书馆移动门户的发展方向,以期为图书馆移动门户设计提供参考。     

支持阅读业务的移动智能终端关键技术

移动阅读作为一种新的阅读方式,正在逐渐深入人们的日常生活.随着人们对移动阅读体验要求的不断提高,对于支持阅读业务的移动智能设备也提出了更高的要求.基于此,详细分析了移动阅读业务的基本功能需求,提出了支持移动阅读业务的移动智能终端的软、硬件技术要求.最后,分别从软件和硬件方面总结分析了现存移动智能终端对阅读业务的支持情况.     

Enhancement-mode GaAs m.o.s.f.e.t. on semi-insulating substrate using a self-aligned gate technique

A self-aligned gate notched channel GaAs m.o.s.f.e.t. structure on semi-insulating substrate is presented. Device operation is mainly in enhancement mode. The transconductance is comparable to enhancement-mode m.e.s.f.e.t.s, j.f.e.t.s and s.i.g.f.e.t.s; however, the output-current capability is essentially increased.     

BOOK REVIEWS

Book reviewed in this articles: Principles of Rhetoric . By Richard E. Hughes and P. Albert Duhamel. The Complete Stylist . By Sheridan Baker. The Writer's Manual : The Grammar and Mechanics of the English Language . By Archibald Jordan. Language , Rhetoric, and Style . By Phillip Damon, John Espey, and Frederick Mulhauser. Writing By Patterns . By Helen E. Lefevre and Carl A. Lefevre. Public Speaking . By George W. Fluharty and Harold R. Ross. You Don't Say : Studies of Modern American Inhibitions . By Benjamin DeMott. The Ill -Spoken Word : The Decline of Speech in America . By Leonard A. Stevens with an introduction by Ralph G. Nichols. Public Speaking : A Rhetorical Perspective . By Jane Blankenship of Mount Holyoke College The Art of successful Communication : Business and Personal Achievement Through Written Communication . By Norman G. Shidle. This Is Reading . By Frank G. Jennings. Perspectives on persuasion . By Wallace C. Fotheringham. Perspectives on Argumentation . Edited by Gerald R. Miller The Mass Media and Modern Society . By Theodore Peterson and Jay W. Jensen, of the University of Illinois, and William L. Rivers, of Stanford University. Personal and Organizational Change Through Group Methods : The Laboratory Approach . By Edgar H. Schein and Warren G. Bennis. Group Problem -Solving Through Discussion . By William S. Smith Report Writing (fourth edition). By Harold F. Graves and Lyne S. S. Hoffman. Report Writing for Business (revised edition). By Raymond V. Lesikar. Communication in the Business Organization . By William Scholz The Penguin Dictionary of English . Compiled by G. N. Garmonsway with Jacqueline Simpson. Clinical Aspects of Remedial Reading . By Clifford J. Kolson, State University College in Potsdam, New York, and George Kaluger, Shippensburg State College in Pennsylvania. Culture in American Education . By Ruth Landes. Freedom and Communications . By Dan Lacy. Introduction to the Field of Speech . Ronald F. Reid Contemporary Controversy : Readings for Composition and Discussion . By Morris Freedman and Paul B. Davis Speech Preparation Sourcebook . By Robert T. Oliver, Carroll C. Arnold, and Eugene E. White, Pennsylvania State University. The Conduct of Inquiry . By Abraham Kaplan. Signal Detection and Recognition by Human Observers . Contemporary readings edited by John A. Swets. Character and Crisis : A Contemporary Reader . Edited by Philip Levine, of Fresno State College, and Henri Coulette, of California State College at Los Angeles. Written Communications for Business Administrators . By Robert D. Hay.     

GaAs power f.e.t.s with semi-insulated gates

GaAs semi-insulated-gate f.e.t.s (s.i.g.f.e.t.s) have been fabricated by Ar+ bombardment in the gate region. The d c. characteristics and microwave performance are compared with those of conventional power m.e.s.f.e.t.s fabricated from the same slice. Up to 2.9W output power with 4dB gain has been obtained from s.i.g.f.e.t. devices at 8 GHz.     

Some results for an r.f.- and p.l.-modulated incoherent carrier

Possibilities of using incoherent carriers, amplitude-modulated by the message-modulated p.f.m., r.f.m. and p.l.m. have been investigated. It has been shown that, for noise bandwidths much smaller than the transmission bandwidth, efficient communication is possible, and s.n.r.s of 50?60dB are obtained for practical p.f.m.-a.m. and r.f.m.-a.m. systems. Some comparisons are also given.     

V-shaped-gate GaAs m.e.s.f.e.t. for improved high-frequency performance

The idea of gate shaping in f.e.t.s was implemented into the GaAs-m.e.s.f.e.t. structure. A m.e.s.f.e.t. with 2 ?m gate length was fabricated, the measured m.a.g. data of which allow an extrapolation to an fmax of about 45 GHz.     

BOOK REVIEWS AND NOTES

Book reviewed in this article:
P sychopathology of C ommunication . By Paul H. Hoch and Joseph Zubin. (Editors.)
T he S tudy of L eadership . By C. G. Browne and Thomas S. Cohn. (Editors.)
M echanics of E nglish . By R. G. Lowery, Charles Moorman, and Robert Barnes.
on A ssignment : R eading and W riting . By Herbert Hackett and William Baker.
C urrent T hinking and W riting . (Fourth Series.) By James M. Bachelor, Ralph L. Henry, and Rachel Salisbury. (Editors).
T echnical R eporting . (Revised Edition.) By Joseph N. Ulman, Jr., and Jay R. Gould.
B etter R eport W riting . By Willis H. Waldo.
T echnical E diting . By B. H. Weil. (Editor.)
L anguage : A n E nquiry into its M eaning and F unction . By Ruth Nanda Anshen (Editor).
T heart of L istening . By Dominick A. Barbara.
H uman R elations in B usiness . By Keith Davis.
E ssays on L anguage and U sage . By Leonard F. Dean and Kenneth G. Wilson. (Editors.)
T he W riter's R esource B ook . (Revised Edition.) By John Gerber. (Editor.)
T he F low of I nformation . By Melvin L. DeFleur and Otto N. Larsen.
T he M ass C ommunicators . By Charles S. Steinberg.
T he S tatus S eekers . By Vance Packard.     

BOOK REVIEWS AND NOTES

R obert H aakenson , Editor D ictionaries and T hat D ictionary . By James Sledd and Wilma R. Ebbitt.
T he L anguage of the L aw . By David Mellinkoff.
N ew D evelopments in P rograms and P rocedures for C ollege -A dult R eading . Edited by Ralph C. Staiger and Culbreth Y. Melton.
D ynamic S peaking . By Martin Bryan, Ph.D.
M ethods and M eans of P ublic S peaking . By William S. Smith and Donald J. Canty.
F our T heories of the P ress . By Fred S. Siebert, Theodore Peterson, and Wilbur Schramm.
U nderstanding M edia : T he E xtensions of M an . By Marshall McLuhan.
T he A rt of P ersuasion in G reece . By George Kennedy.
C ommunicative S peech . By Robert T. Oliver, Harold P. Zelko, and Paul D. Holtzman.
F our in D epth . By Ken Macrorie.
L anguage and L ogic . By Milos Prazak.
K ant 'S I ntroduction to L ogic . Translated by Thomas Kingsmill Abbott, B. D.
L anguage and P hilosophy . By Mikel Dufrenne. Translated by Henry B. Veatch.
GUIDE TO AMERICAN ENGLISH. By L. M. Myers.     

Circuit model for the GaAs m.e.s.f.e.t. valid to 12 GHz

A new equivalent circuit is given for the GaAs m.e.s.f.e.t., which includes resistive loss in the feed back elements. The circuit values are given for several 1 ?m-gate GaAs m.e.s.f.e.t.s. A method for fitting s12 to the measured data is described. Finally, the gain and stability factor of several GaAs m.e.s.f.e.t.s. are extrapolated to 24 GHz from the present model.     

BOOK REVIEWS AND NOTES

Book reviewed in this articles:
C ausality . By Mario Bunge.
T he P rocess of C ommunication . By David K. Berlo.
I ntroduction to M ass C ommunication . By Edwin Emery, Phillip H. Ault, and Warren K. Agee.
T he O pen and C losed M ind . By Milton Rokeach.
A natomy and P hysiology of S peech . By Harold M. Kaplan.
M an and O rganization . By William Foote Whyte.
P ractical S peech F undamentals . By Eugene E. White.
I mproving Y our V oice . By John Grasham and Glenn Gooder.
S peech for E veryday U se . (Revised Edition.) By Elizabeth G. Andersch and Lorin C. Staats.
G uide to G ood S peech . (Second Edition.) By James H. McBurney and Ernest J. Wrage.
T he P sychological R eport . By Walter G. Klopfer.
A merican F orum : S peeches on H istoric I ssues , 1788–1900. By Ernest J. Wrage and Barnet Baskerville. (Editors.)
S mall -G roup D iscussion in O rientation and T eaching . By Randall W. Hoffmann and Robert Plutchik.     

REVIEWS

Book reviewed in this article:
the truth about your child's reading . By Sam Duker and Thomas NaIly.
magazines in the united states , 2nd Edition. By James Playsted Wood.
communication: handling ideas effectively . By Roy Ivan Johnson, Marie Schalekamp, and Lloyd A. Garrison.
college english: the first year . By J. Hooper Wise, J. E. Congleton, Alton C. Morris, and John C. Hodges.
intormation theory in psychology . By Henry Quastler, editor.
logic and language . By Bernard F. Huppe and Jack Kaminsky.
guides to straight thinking . By Stuart Chase.
a concise dictionary of english slang . By William Freeman.
United States Air Force Dictionary, ed. W. A. Heflin
present-day psychology . By A. A. Roback