| Multivariable Control in the Process Industry. |
MAY 1989 |
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| Authors:
F. Caldeira-Saraiva; M. J. Carrapichano
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 | The paper addresses the use of advanced multivariable control techniques in the Process Industry. It reviews the state of the art in process control, discusses the gap between available multivariable control theory (state-space and frequency domain) and tools, and existing practice which still confines itself mostly to PID. It also describes the objectives of work presently being undertaken under ESPRIT II which aims at closing the gap. (Copyright 1989 IFS ... |
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| ON NETWORK ANALYSIS. |
JUN 1968 |
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| Authors:
Robert Joseph Bohls; NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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| The thesis reviews four of the existing matrix methods for finding the shortest path in a network, including the little known matrix method by Floyd. Floyd's method is then extended to determine all best paths. After a brief review of the nth best path problem, Floyd's method is again extended to determine the nth best path. Finally, the nth best path problem is investigated to determine its ... |
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| VERTICAL FLIGHT PERFORMANCE CRITERIA. |
JUN 1968 |
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| Authors:
Richard S. Maccabe; ARMY COMBAT DEVELOPMENTS COMMAND AVIATION AGENCY FORT RUCKER AL
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| Various problems confronting the military operators of VTOL aircraft in tactical environments which tend to impede the ability to hover and perform related vertical flight maneuvers are examined. Several modes of flight employed under certain tactical situations were examined to establish appropriate power and lift requirements in excess of those required to hover. The influences of adverse ambient temperature, high elevation, wind, aircraft and engine deterioration, periodic aircraft weight increases, ... |
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| THE FIRE-FIGHT ASSESSMENT IN THE GROUND COMBAT CONFRONTATION (GDD) MODEL. |
17 APR 1968 |
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| Authors:
Harlan W. Loomis; NAVAL WEAPONS LAB DAHLGREN VA
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| The Ground Combat Confrontation (GCC) Model is a computerized simulation of selected aspects of ground combat and is coded in STRAP for the IBM 7030 (STRETCH) computer. The purpose of this report is to document the assessment techniques employed in the fire-fight portion of the GCC Model, which is called the Fire-Fight Submodel. The Fire-Fight Submodel is a tool of military operations analysis designed to assess the results of close ... |
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| BALANCING OF PARTIAL OPTIMA BY MEANS OF A LEARNING MONTE CARLO APPROACH. AN APPLICATION IN UNDERGROUND COAL MINING. |
APR 1968 |
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| Authors:
Manfred Meyer; CARNEGIE-MELLON UNIV PITTSBURGH PA MANAGEMENT SCIENCES RESEARCH GROUP
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| There are two important problems in underground hard coal mining which have recently been solved: short run production planning in the faces and planning of the locomotive traffic in main haulage roads. Mutual independence has usually been assumed for these problems and 'optima' have been computed accordingly. However, this independence is not usually valid so that the resulting optima are not global. Treating both problems simultaneously in all their interrelations ... |
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| APPROXIMATIONS TO SYSTEM RELIABILITY USING A MODULAR DECOMPOSITION. |
JUL 1967 |
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| Authors:
Lawrence D. Bodin; CALIFORNIA UNIV BERKELEY OPERATIONS RESEARCH CENTER
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| Esary and Proschan show that a lower bound to system reliability can be found by enumerating all min cut sets in the coherent structure, connecting the components in each min cut set in parallel and joining each of these parallel subsystems in series where replicated components are replaced by identical yet independently operating components. A module of a coherent structure is a subset of the basic components of the system ... |
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| MODELS, ANALYSIS, AND APPROXIMATIONS FOR SYSTEM RELIABILITY AND AVAILABILITY, |
JUN 1967 |
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| Authors:
Martin Messinger; POLYTECHNIC INST OF BROOKLYN N Y MICROWAVE RESEARCH INST
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| Probabilistic models are formulated for the computation of the system reliability in terms of the component reliabilities. Emphasis is placed on obtaining bounds and approximations that can be used to simplify the necessary computation. In evaluating the usefulness of these results the concept of 'goodness' is introduced. The system structure is modeled in terms of a reliability graph. From the minimal cut sets of the reliability graph, good bounds are ... |
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| A COST DATA RESEARCH PROGRAM PROPOSAL WITH SPECIAL EMPHASIS ON A TECHNICAL CHARACTERISTICS DICTIONARY, |
MAR 1967 |
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| Authors:
M. V. Jones; MITRE CORP BEDFORD MASS
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| This report describes a comprehensive program of cost data research proposed for improving the credibility and accuracy of future cost estimates for Air Force Systems. |
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| ANALYTIC AND MONTE CARLO DISTRIBUTION THEORY FOR PERT. |
09 AUG 1966 |
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| Authors:
Larry J. Ringer; TEXAS A AND M UNIV COLLEGE STATION INST OF STATISTICS
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| PERT (Program Evaluation Review Technique) is a method of managing used in planning and control to successfully obtain a stated goal. The fundamental analytic device of PERT is the network, a pictorial arrangement of the work necessary to achieve a given objective, generally the completion of a project. The present PERT analysis replaces the variable completion times in the network by the expected completion time for each activity and computes ... |
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| QUASILINEARIZATION AND INVERSE PROBLEMS FOR LANCHESTER EQUATIONS OF CONFLICT., |
AUG 1966 |
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| Authors:
J. D. Buell; H. H. Kagiwada; R. E. Kalaba; RAND CORP SANTA MONICA CALIF
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| Quasilinearization and digital computation are applied to certain problems relating to the Lanchester equations of combat. It is shown how the enemy's strength and replenishment rate can be estimated on the basis of information on friendly units. The problem is phrased as a nonlinear, multipoint, boundary-value problem, and quasilinearization is used for the numerical solution. (Author) |
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| A SYSTEMS ANALYSIS OF POLITICS: A MATHEMATICAL APPROACH. |
MAY 1966 |
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| Authors:
John James Dittrick Jr; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Certain aspects of political functioning are investigated through the use of mathematical systems analysis techniques. Formal relationships are developed with respect to some of the elementary functions involved in politics. These relationships involve society and the political system in terms of demands, decisions and stress. Further, the concepts of communications and specialization are introduced as means of enhancing the ability of the political system to make satisfying decisions. The functioning ... |
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| AN ANALYSIS AND DELINEATION OF THE CONCEPT OF PSYCHOLOGICAL OPERATIONS, |
MAR 1966 |
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| Authors:
Gerald C. Bailey; HUMAN SCIENCES RESEARCH INC MCLEAN VA
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| Contents: A Psychological Operations Paradigm; Dimensions of Psychological Operations; Determinants of Psychological Operations; Knowledge Determinants; Determinants of Psychological Operations; Specification of Psychological Operations, and Processes in the Identification of Psychological Operations. |
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| AN EMPIRICAL INVESTIGATION AND MODEL PROPOSAL OF A JOBSHOP-LIKE QUEUEING SYSTEM, |
JUL 1965 |
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| Authors:
Roy D. Harris; CALIFORNIA UNIV LOS ANGELES WESTERN MANAGEMENT SCIENCE INST
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| This paper reports the results of a comprehensive study of an operating machine shop as a network of jobshop like queueing models. Ninety thousand observations are collected over a seven month period to measure the Erlang model, required arrival, service, length of queue and waiting line distributions at each work center in the shop. The Erlang or modified Erland queueing model is rejected as generally applicable to the work center ... |
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| A STATISTICAL THEORY FOR THE PERT CRITICAL PATH ANALYSIS. |
1965 |
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| Authors:
H. O. Hartley; A. W. Wortham; TEXAS A AND M UNIV COLLEGE STATION
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| Technical improvement in PERT Critical Path Methodology is discussed. The approach utilizes the following devices: (a) A classification of networks into different types depending on their degree of involvement and complexity; (b) An operational calculus by which the distribution of critical times will be derived by numerical analysis, notably numerical integration. This method will provide the solution to the problem for the basic types of networks; (c) A Monte Carlo ... |
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| OPERATIONS RESEARCH SYMPOSIUM, 25, 26, 27 MAY 1964. EXECUTIVE SUMMARY. |
27 JUN 1964 |
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| Authors:
ARMY WEAPONS COMMAND ROCK ISLAND IL
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| Contents: Operations research a view from The Pentagon, Role of cost in military decision making, Operational war gaming, Network techniques, Special warfare, Ortag clinic, Technical discussion groups, Invited papers. |
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| DIFFERENTIAL GAMES: A MATHEMATICAL THEORY WITH APPLICATIONS TO WARFARE AND OTHER TOPICS. |
03 DEC 1963 |
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| Authors:
Rufus Isaacs; CENTER FOR NAVAL ANALYSES WASHINGTON D C
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| Broadly a differential game is one in which, as the action progresses, both the environment and the decisions available to the players are subject to a consistent, logical law, so that the problem is amenable to mathematical analysis. Usually the action is continuous and solutions can actually be obtained for a wide range of problems of extended conflict between two antagonists. The applications include various models of battles, pursuit and ... |
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| THE SYSTEMATIC USE OF EXPERT JUDGMENT IN OPERATIONS RESEARCH, |
SEP 1963 |
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| Authors:
Olaf Helmer; RAND CORP SANTA MONICA CA
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| By way of a summary, let me restate as follows: (1) I consider operations research a science, but an inexact one. (2) The operations analyst, as opposed to the pure scientist, emphasizes control rather then understanding. (3) The use of judgment in constructing and applying operations-analytical models in inescapable. (4) Since the use of judgment is a sine-qua-non, such judgment should be as expert and its application as systematic as ... |
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| AN OPERATIONAL THEORY OF OLIGOPOLY, |
1944 |
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| Authors:
Dilip K. Guha; S. Sengupta; CASE INST OF TECH CLEVELAND OHIO
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| A method has been developed for determining optimal price policies for an individual firm in an undifferentiated oligopoly without communication among the competitors. This method is 'operational': It is based upon verifiable specifications about (i) the institutional mechanism underlying the consumnation of transactions, (ii) the content and extent of information available to market participants, and (iii) the nature of competition. It does not require an analysis of the subjective attitudes ... |
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