检索结果-内蒙古大学图书馆

APPROXIMATE ANALYSIS OF A GENERALIZEd CLOCKEd SCHEdULE

AT&T TECHNICAL JOURNAL 1985年第2期64卷 597-615页

作者： FREdERICKS, AA FARRELL, BL dEMAIO, dF Authors are employees of AT&T Bell Laboratories. Albert A. Fredericks: B.S. (Mathematics) 1962 Fairleigh Dickinson University M.S. Ph.D. (Mathematics) 1965 and 1970 respectively Courant Institute New York University AT&T Bell Laboratories 1961—. Brian L. Farrell: B.S. (Mathematics Computer Science) 1978 St. Peter's College M.S. (Operations Research) 1982 Columbia University AT&T Bell Laboratories 1978—. Darlene F. DeMaio: B.A. (Mathematics) 1976 Lycoming College M.S. (Industrial and Applied Mathematics) 1981 Polytechnic Institute of New York AT&T Bell Laboratories 1976—.

Clocked schedules represent an important method of task scheduling for computer systems with real-time applications. In this paper we consider a generalized class of clocked schedule that includes those used in many stored program control switching systems. Key performance measures for this class are discussed, and an analytic approximation method for analyzing certain of these measures is given. This approximation method is most applicable in evaluating long-term delays. (A companion paper by doshi addresses short-term delays for systems with extremely time-critical tasks.) Comparisons are made with exact numerical results (obtained using the method presented in a companion paper by Ackroyd), detailed simulation models, and field data.

关键词： computer SYSTEMS, dIGITAL

来源：评论

学校读者我要写书评

暂无评论

SYSTEM-75 - SWITCH SERVICES SOFTWARE

引用

AT&T TECHNICAL JOURNAL 1985年第1期64卷 197-212页

作者： dENSMORE, W JAKUBEK, RJ MIRACLE, MJ SUN, JH All authors are members of AT&T Information Systems Laboratories an entity of AT&T Information Systems Inc. Wayne Densmore: B.S. (Electrical and Computer Engineering) 1975 Clarkson College of Technology M.S. (Electrical and Computer Engineering) 1976 Clarkson College of Technology AT&T Bell Laboratories 1976–1983 AT&T Information Systems Laboratories 1983—. Ray J. Jakubek: B.S. (Electrical Engineering) 1967 Manhattan College M.S. 1968 and Ph.D. (Electrical Engineering) 1973 New York University Bell Laboratories 1968–1982 Michael J. Miracle: B.S. (Electrical and Computer Engineering) 1979 University of Wisconsin M.S. (Electrical Engineering) 1980 Stanford University AT&T Bell Laboratories 1979–1982 John H. Sun: B.S. (Electrical Engineering) 1972 National Chiao-Tung University Taiwan M.S. (Computer Science) 1977 University of Connecticut Taiwan Telecom Research Laboratories 1974–1975 ACCO-Bristol Company 1978 Bell-Northern Research 1979 AT&T Bell Laboratories 1980–1982

The switch services software of System 75 provides the basis for an extensible office communication system, supporting a wide variety of voice and data-switching services. This paper presents the software architecture of the System 75 switch services. The concepts of user, group, and process-per-call form its foundation. We introduce the architecture by stepping through a simple station-to-station phone call, and proceed to the derivation of a call model based on the topology of a call. This call model is realized as a layered set of cooperating processes that execute under the Oryx/Pecos Operating System on the System 75 switch processor. The software layers and processes are discussed and a call walk-through is used to illustrate the process interactions.

关键词： dIGITAL COMMUNICATION SYSTEMS

来源：评论

学校读者我要写书评

暂无评论

Institutional Innovation For Cogeneration

引用

Review of Policy Research 1985年第1期5卷 89-95页

作者： Chartock, Michael A. devine, Michael d. Gunn, Elizabeth M. Currently Staff Scientist in the Office for Planning and Development at the Lawrence Berkeley Laboratory University of California. Formerly he was a Research Fellow in the Science and Public Policy Program and Associate Professor of Zoology at the University of Oklahoma. He has a Ph.D. in Biological Science from the University of Southern California. He is a co-author of five books and numerous papers on energy and environmental issues. Technical Project Coordinator at the Energy Resources Institute at the University of Oklahoma and a Ph.D. candidate in Political Science. She is author with Kenneth J. Meier and Ronald D. Sylvia of The Manager and Program Planning and Evaluotion (Brooks/-Cole 1985). She has also published in edited works on groundwater management in the U.S. and on growth change and environmental quality in the Sunbelt.

来源：评论

学校读者我要写书评

暂无评论

FIRE MAIN CONTROL

引用

NAVAL ENGINEERS JOURNAL 1985年第6期97卷 35-48页

作者： MALKOFF, dB MOY, MC WILLIAMS, HL Dr. Donald B. Malkoff majored in physics as an undergraduate at Harvard University. He received an M.D. degree from the University of Pittsburgh School of Medicine in 1960. This was followed by an internship and residency in neurology at University Hospital in Ann Arbor Michigan. He spent several years at the National Institutes of Health engaged in gerontology research has practiced and taught clinical neurology and in 1983 received an M.S. degree in computer science at the University of California San Diego. Currently Dr. Malkoff is employed by the Navy Personnel Research and Development Center in San Diego California where he is senior investigator in a human factor/computer display-and-control project involving the DDG-51 gas turbine propulsion unit. He is a member of the American Academy of Neurology the Society for Neuroscience the American Association for Artificial Intelligence and the Association for Computing Machinery. Dr. Malkoff is certified by the American Board of Psychiatry and Neurology has taught computer science at UCSD and published in several research areas including magnetoencephalography and electron microscopy. His basic interests are in the areas of artificial intelligence and learning expert systems particularly as they apply to the problems of fault-detection and control. Dr. Melvyn C. Moy received his undergraduate training in mathematics and chemistry at the University of Texas Austin. He studied experimental psychology at the University of Wisconsin Madison receiving his M.S. in 1970 and Ph.D. in 1972. He served as an assistant professor at the University of South Dakota where he taught experimental design and methodology for a year before joining the Navy Personnel Research and Development Center in 1973. His work and research since then spans across many application areas such as the development of manpower planning models for the Navy the design of operational decision aids the human engineering of interactive large-scale war gaming systems and the evaluation o

The ship fire main has undergone considerable development throughout the past 2,000 years, resulting in a system that is critical both for normal ship function and for ship survivability in emergencies. Because of its complexity, the modern firemain system is highly vulnerable to malfunction and to damage during combat. Firemain fault detection and fault recovery are currently conducted manually by damage control teams. The advantages and disadvantages of this method are discussed, and alternative methods of fault detection and recovery are explored. An interactive computer program is introduced which uses central control over remotely situated valves to facilitate fault detection and recovery, significantly reducing recovery-time and manpower requirements. These reductions may result in savings of lives, ship systems, and ships themselves. The computer program is based upon an algorithm which is, in effect, a prescription that can be followed manually by the operator or be completely automated. The color graphic display which is used for monitoring can also be utilized for the training of damage control operators or for the evaluation of other algorithms for firemain control. Alternative firemain hardware and configurations could lead to even more efficient methods of fault detection and recovery as well as improved firemain water supply management in general.

关键词： NAVAL VESSELS

来源：评论

学校读者我要写书评

暂无评论

ENERGY POLICY: HOW FAILURE WAS SNATCHEd FROM THE JAWS OF SUCCESS

引用

Review of Policy Research 1985年第3期4卷 433-444页

作者： Kashand, don E. Rycroft, Robert W. DON E. KASH is George Lynn Cross Research Professor of Polltlcal Science and Research Fellow in Science and Public Policy at the University of Oklahoma. From 1978 through 1981 he served as Chief of the Consstvatlon Division U.S. Ceolcgical Survey. Currently he chairs the Committee on National Dredging Issues National Research Council. Dr. Kashls research interests are in the areas of science policy and energy policy. ROBERT W. RYCROFT is Assistant Professor of Public Affairs and Political Science and Deputy Director of the Graduate Program in Science Technology and Public Policy The George Washington University. He completed his Ph.D. at the University of Oklahoma and has held research and teaching positions a t Oklahoma Princeton and the University of Denver. Dr. Rycroft's research interests are in the areas of science and technology policy energy policy and bureaucratic politics.

Prior to the energy crisis of 1973, the U.S. did not have an energy policy. The failure of the American political system to anticipate and respond to the changing facts of energy was an inevitable outcome of the way policy is made. Consistent with tradition, the search for a consensus was begun from 1973–1980. The U.S. abandoned cheap energy as a high priority and adopted secure, abundant and clean energy. Conservation came to be viewed as a source of energy along with nuclear power and synfuels. Price deregulation was the most important policy tool. The Reagan administration upset this consensus and substituted the market place as the means for maximizing supplies rather than reduce demand. The federal role was limited to bringing publicly‐owned bonds into the marketplace. At the same time, it reduced REd and concern for the environment. Thus, the Reagan administration succeeded in snatching failure from the jaws of success. Copyright © 1985, Wiley Blackwell. All rights reserved

关键词：

来源：评论

学校读者我要写书评

暂无评论

AIR-CUSHION LANdING CRAFT NAVIGATION

引用

NAVAL ENGINEERS JOURNAL 1985年第4期97卷 248-260页

作者： GRAHAM, HR KIM, JC BANd, EGU FOWLER, AW Herbert R. Graham:received his degrees of B.S. in 1951 and M.S. in 1958 in aeronautical engineering from the Massachusetts Institute of Technology and the California Institute of Technology respectively. He also attended the Harvard Graduate School of Business Administration. He is presently a task manager at TRW Inc. McLean Virginia responsible for landing craft air cushion (LCAC) engineering support. Since joining TRW in 1967 he has had several technical project management and system engineering responsibilities in amphibious ships transportation and energy. He was responsible for the preliminary engineering design and cost estimates for tracked air cushion vehicles (TACVs). He has been active in several professional societies including ASNE and served as vice-chairman Los Angeles Section American Institute of Aeronautics and Astronautics. John C. Kim:received his degrees of B.S. in electrical engineering Tri-State University 1959 M.S. in electrical engineering Michigan State University 1960 and Ph.D. in electrical engineering Michigan State University. He is presently a senior staff engineer with TRW Inc. McLean Virginia where his technical experience has included communications system engineering and navigation system analysis. Since joining TRW in 1969 he has held numerous positions including section head project manager and department manager. His previous employment includes E-Systems/Melpar Division and Honeywell. Dr. Kim has been active in the IEEE Washington Chapter activities which included secretary vice-chairman and chairman of Systems Science and Cybernetics Group. Edward G.U. Band:received a B.S. degree in mechnical engineering in 1946 and a D.I.C in aeronautical engineering in 1947 at the City and Guilds College of London University. In 1951 he received an M.S. degree from Stevens Institute of Technology in fluid dynamics. After a career in the aircraft industry in England Canada and the U.S.A. he spent several years teaching in Chile and at Webb Institute of Naval Archi

Air cushion vehicles (ACVs) have operated successfully on commercial routes for about twenty years. The routes are normally quite short; the craft are equipped with radar and radio navigation aids and maintain continuous contact with their terminals. Navigation of these craft, therefore, does not present any unusual difficulty. The introduction of air cushion vehicles into military service, however, can present a very different picture, especially when external navigation aids are not available and the craft must navigate by dead reckoning. This paper considers the problems involved when navigating a high-speed air cushion vehicle by dead reckoning in conditions of poor visibility. A method is presented to assess the ACV's navigational capability under these circumstances. A figure of merit is used to determine the sensitivity of factors which affect navigation such as the range of visibility, point-to-point distance, speed, turning radius and accuracy of onboard equipment. The method provides simplistic but adequate answers and can be used effectively to compare the-capability and cost of alternative navigation concepts.

关键词： AIR CUSHION VEHICLES

来源：评论

学校读者我要写书评

暂无评论

SPACE BIOPROCESSING

引用

BIO-TECHNOLOGY 1985年第9期3卷 786-790页

作者： TOdd, P Paul Todd Ph.D. Director of the Bioprocessing and Pharmaceutical Research Center University City Science Center 3401 Market Street Suite 220 Philadelphia PA 19104.REFERENCES Universities Space Research Association Microgravity Biotechnology Working Group "Goals in Microgravity Biotechnology". 1985. Unpublished.Allen R.E. Rhodes P.H. Snyder R.S. Barlow G.H. Bier M. Bigazzi P.E. van Oss C.J. Knox R.J. Seaman G.V.F. Micale F.J. and Vanderhoff J.W. 1977. Column electrophoresis on the Apollo-Soyuz Test Project. Sep. Purif. Meth. 6: 1-59.|ISI|Snyder R.S. Rhodes P.H. Herren B.J. Miller R.Y. Seaman G.V.F. Todd P. Kunze M.E. and Sarnoff B.E. 1985. Analysis of free zone electrophoresis of fixed erythrocytes performed in microgravity. Electrophoresis 6: 3-9.|ISI|Tulp A. 1984. Density gradient electrophoresis of mammalian cells. In Methods of Biochemical Analysis 30: 148-198.Strickler A. and Sacks T. 1973. Continuous free-film electrophoresis: The crescent phenomenon. Prep. Biochem. 3: 269-277.|PubMed|ISI|ChemPort|Morrison D.R. Barlow G.H. Cleveland C. Grindeland R. Hymer W.C. Kunze M.E. Lanham J.W. Lewis M.L. Sarnoff B.E. Todd P. and Wilfinger W. 1984. Electrophoretic separation of kidney and pituitary cells on STS-8. Adv. Space Res. 4: 67-76.|Article|PubMed|ChemPort|Bier M. Palusinski O.A. Mosher R.A. and Saville D.A. 1983. Electrophoresis: Mathematical modeling and computer simulation. Science 219: 1281-1287.|PubMed|ISI|ChemPort|Albertsson P.A. 1971. Partition of Cell Particles and Macromolecules. Wiley- Interscience New York.Brooks D.E. and Bamberger S. 1982. Studies on aqueous two phase polymer systems useful for partitioning of biological material p. 233-240. In Materials Processing in the Reduced Gravity Environment of Space. G. E. Rindone (ed.) Elsevier Science Publ. Co. Inc. New York.Juarez-Salinas H. Engelhorn S.C. Bigbee W.L. Lowry M.A. and Stanker L.H. 1984. Ultrapurification of monoclonal antibodies by high-performanc

来源：评论

学校读者我要写书评

暂无评论

MULTIPROCESSOR UNIX OPERATING-SYSTEMS

引用

AT&T BELL LABORATORIES TECHNICAL JOURNAL 1984年第8期63卷 1733-1749页

作者： BACH, MJ BUROFF, SJ AT&T Bell Laboratories. Maurice J. Bach: B.A. (Physics) 1973 Yeshiva University Ph.D. (Computer Science) 1979 Columbia University AT&T Bell Laboratories 1977—. Steven J. Buroff: B.S. and M.S. (Electrical Engineering) 1968 and 1969 respectively Ph.D. (Computer Science) 1977 Illinois Institute of Technology

This paper describes the problems posed by running the UNIX ™ operating system on multiprocessors, as well as some solutions. The resulting systems function like their single-processor counterparts but yield 70 percent better throughput for two-processor configurations. Closely coupled multiprocessor UNIX systems currently run on IBM and AT&T Technologies hardware, but the implementation described in this paper ports to other architectures as well, and the design is not limited to two-processor configurations.

关键词：

来源：评论

学校读者我要写书评

暂无评论

dATA ABSTRACTION IN C

引用

AT&T BELL LABORATORIES TECHNICAL JOURNAL 1984年第8期63卷 1701-1732页

作者： STROUSTRUP, B AT&T Bell Laboratories. Bjarne Stroustrup: Cand. Scient. (Mathematics and Computer Science) 1975 University of Aarhus Denmark Ph.D. (Computer Science) 1979 Cambridge University AT&T Bell Laboratories 1979—.

C++ is a superset of the C programming language; it is fully implemented and has been used for nontrivial projects. There are now more than one hundred C++ installations. This paper describes the facilities for data abstraction provided in C++. These include Simula-like classes providing (optional) data hiding, (optional) guaranteed initialization of data structures, (optional) implicit type conversion for user-defined types, and (optional) dynamic typing; mechanisms for overloading function names and operators; and mechanisms for user-controlled memory management. It is shown how a new data type, like complex numbers, can be implemented, and how an “object-based” graphics package can be structured. A program using these data abstraction facilities is at least as efficient as an equivalent program not using them, and the compiler is faster than older C compilers.

关键词：

来源：评论

学校读者我要写书评

暂无评论

dEBUGGING C-programS WITH THE BLIT

引用

AT&T BELL LABORATORIES TECHNICAL JOURNAL 1984年第8期63卷 1633-1647页

作者： CARGILL, TA AT&T Bell Laboratories. Thomas A. Cargill: B.S. (Mathematics/Computer Science) 1973 University of Reading England M. Math. 1975 and Ph.D. (Computer Science) 1979 University of Waterloo Ontario AT&T Bell Laboratories 1982—.

The Blit terminal is changing the way we debug C programs. Using multiple virtual terminals on the Blit, a programmer can interact simultaneously with several of the tools needed when debugging. This makes existing tools more useful and influences the design of new tools. In particular, the Blit cleanly separates the programmer's communication with a debugger from communication with the program being debugged. Moreover, joff, a debugger for C programs that run in the Blit, demonstrates the advantage of operating a debugger asynchronously with the subject process and the effectiveness of a source-level user interface based on pop-up menus. The graphics user interface supports “pointer chasing” through arbitrary data structures and graphical display of graphics data objects.

关键词： computerS

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：