48 research outputs found
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Construction of a support tool for the design of the activity structures based computer system architectures
This thesis was submitted for the degree of Doctor of Philosophy and was awarded by Brunel University.This thesis is a reapproachment of diverse design concepts, brought to bear upon the computer system
engineering problem of identification and control of highly constrained multiprocessing (HCM)
computer machines. It contributes to the area of meta/general systems methodology, and brings
a new insight into the design formalisms, and results afforded by bringing together various design
concepts that can be used for the construction of highly constrained computer system architectures.
A unique point of view is taken by assuming the process of identification and control of HCM
computer systems to be the process generated by the Activity Structures Methodology (ASM).
The research in ASM has emerged from the Neuroscience research, aiming at providing the
techniques for combining the diverse knowledge sources that capture the 'deep knowledge' of this
application field in an effective formal and computer representable form. To apply the ASM design
guidelines in the realm of the distributed computer system design, we provide new design definitions
for the identification and control of such machines in terms of realisations. These realisation definitions
characterise the various classes of the identification and control problem. The classes covered
consist of:
1. the identification of the designer activities,
2. the identification and control of the machine's distributed structures of behaviour,
3. the identification and control of the conversational environment activities (i.e. the randomised/
adaptive activities and interactions of both the user and the machine environments),
4. the identification and control of the substrata needed for the realisation of the machine, and
5. the identification of the admissible design data, both user-oriented and machineoriented,
that can force the conversational environment to act in a self-regulating
manner.
All extent results are considered in this context, allowing the development of both necessary
conditions for machine identification in terms of their distributed behaviours as well as the substrata
structures of the unknown machine and sufficient conditions in terms of experiments on the unknown
machine to achieve the self-regulation behaviour.
We provide a detailed description of the design and implementation of the support software tool
which can be used for aiding the process of constructing effective, HCM computer systems, based
on various classes of identification and control. The design data of a highly constrained system, the
NUKE, are used to verify the tool logic as well as the various identification and control procedures.
Possible extensions as well as future work implied by the results are considered.Government of Ira
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NBS monograph
From Introduction: "This is the third in a planned series of reports involving selective literature reviews of research and development requirements and areas of continuing R & D concern in the computer and information sciences and technologies.
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Computer simulation applied to parcel conveyors
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The research reported by this thesis concerns the operation of Post Office parcel conveyors. It evaluates the behaviour of straight belt conveyors using different parcel loadings. Empirical parcel data supplied by the Post Office is used for the
development of a computer-based simulation model. An important problem in parcel conveying is the variability in size, shape and homogeneity of parcels, which may lead to conveyor jamming. Because of statutory requirements for parcel handling by the Royal Mail, it is not possible to carry out physical tests. This research demonstrated the feasibility of parcel conveyor simulation models with computing equipment current in 1970 - 1975. It established that jamming was unlikely in straight conveyors loaded with parcels conforming to Post Office recommendations. Non-conforming parcels could cause jams, particularly with humid atmospheric conditions. It was established that the continuum theory of Jenike, which assumes the conveyor to be filled with an 'Ideal' material, could not be extended to parcel conveyors. This precludes the use of finite element analysis for solution of this problem. The model established by this research can be developed further, to deal with changes in the direction and cross-section of belt conveyors and additional parcel characteristics
Computer Graphics. Volume 2 - an Annotated Bibliography to the NASA-MSFC Digital Computer Graphics Program
Annotated bibliography on digital computer graphic
A basic web-based distance education model
Thesis (Master)--Izmir Institute of Technology, Computer Engineering, Izmir, 2005Includes bibliographical references (leaves: 147)Text in English; Abstract: Turkish and Englishxv, 201 leavesDuring the recent years, the rapid growth of the Web and multimedia technologies urged a shift of Computer-Based Educational Technology towards the Web. In the leading universities of the developed countries, studies on Web-Based Education have started and in an increasing manner are going strong. In the last few years, the leading universities of Turkey are also greatly interested in Web-Based Education and have started their re-structuring accordingly.The goal of this study is to design a basic model to be utilized by a university aiming to offer web-based distance education. In achieving this; by the use of system approach, a model comprising of three subsystems, namely system analysis, system design and evaluation&control, working in coordination with each other, has been tried to be proposed. There may be only one missing point of this study, that is; since preparing a lesson or program according to this model was not foreseen in this thesis, the effectiveness evaluations suggested in the evaluation&control subsystem could not be realized. It is recommended to realize such an evaluation in a further study to make it possible to reveal the effectiveness of web-based education by preparing a lesson or program according to this model.On the other hand, a survey has been conducted in Turkey in some of the universities either offering web-based education or are interested in studies in this field.The aim of this survey is to analyze from system design point of view the studies carried out in our universities on this matter and to get a picture of the existing situation.The directed questions aiming this were prepared by taking into consideration of the three stages of system design subsystem, i.e. administrative design, educational design, and technological design. It is intended for the result of this survey to shed light to the new-coming institutions in this field. As a matter of fact, each stage of this subsystem is a survey item itself and should be researched one by one in other studies.Furthermore, for individuals interested in distance education and web-based distance education and for people newly involved in this matter, this thesis is intended to be a reference material and to serve this purpose the sections are prepared containing the basic information accordingly. Nevertheless, since most of the information regarding system design are prepared without taking into consideration the disabled people, the relevant information are not complete. In another study, the offering of the web-based education to the disabled people, especially for deaf, hard of hearing or speech impaired, and blind students, has to be investigated.Finally, in this thesis the proposed model for the Web-Based Distance Education, as being a basic and conceptual model, has a flexible structure; i.e., suitable for all the institutions and establishments intending to offer the web-based education.What is important here, is to exploit the potential sources within the institution that will display the required systematic approach
Personal Privacy in the Computer Age: The Challenge of a New Technology in an Information-Oriented Society
The purpose of this Article is to survey the new technology\u27s implications for personal privacy and to evaluate the contemporary common-law and statutory pattern relating to data-handling. In the course of this examination, it will appraise the existing framework\u27s capacity to deal with the problems created by society\u27s growing awareness of the primordial character of information. The Article is intended to be suggestive; any attempt at definitiveness would be premature. Avowedly, it was written with the bias of one who believes that the new information technology has enormous long-range societal implications and who is concerned about the consequences of the notion that man shapes his tools and then they shape him. The assumption throughout is that the computer is not simply a sophisticated indexing machine, a miniaturized library, or an electronic abacus; it is the keystone of a new communications medium that eventually will have global dimensions. Thus, it would be overly simplistic to examine the computer-privacy issue from the perspective of a particular machine or group of machines operating in a federal office building, in the headquarters of one of the nation\u27s major industrial complexes, or in the recesses of a great university. Indeed, the analogy between the forces that gave rise to the multifaceted regulation of the airlines, railroads, radio, and television and the problems that already are generating pressure for the regulation of computer transmissions and facilities seems obvious. It is against the template of the potential need for a comprehensive regulatory scheme embracing some uses of the technology in both the public and private sectors that the question of protecting individual privacy in the computer age must be placed
ICL Technical Journal 4(4): CAFS-ISP
The special issue of the ICL Technical Journal on CAFS-ISP. This closely followed the award to ICL of the Queen's Award for Technology in April, 1985. The contents include the history of the hardware and software, its status and future, perspectives from leading developers and users, and a list of related patents
Workshop proceedings: Information Systems for Space Astrophysics in the 21st Century, volume 1
The Astrophysical Information Systems Workshop was one of the three Integrated Technology Planning workshops. Its objectives were to develop an understanding of future mission requirements for information systems, the potential role of technology in meeting these requirements, and the areas in which NASA investment might have the greatest impact. Workshop participants were briefed on the astrophysical mission set with an emphasis on those missions that drive information systems technology, the existing NASA space-science operations infrastructure, and the ongoing and planned NASA information systems technology programs. Program plans and recommendations were prepared in five technical areas: Mission Planning and Operations; Space-Borne Data Processing; Space-to-Earth Communications; Science Data Systems; and Data Analysis, Integration, and Visualization
Analysis and design of a geographic information system for the OGX process Oil exploration
In these days, the oil exploration activity is mainly based on the integration and multidisciplinary analysis of data from different sources: Multipurpose cadastre, land use, aerial photos and separate satellite images such as topographic, geomorphological, geological, geophysical, land and air, and so on. In addition, organizations guarantors for oil exploration establish relationships with a large number of other entities, from which it takes or have to share the information handled.
All of this process has significant benefits as it puts the information right in the hands of an end user, but it also results in problems like fractured databases, lack of synchronization, data duplication, loss of data and ultimately loss of productivity and accuracy. Unorganized growth also leads to proliferation of systems with attendant interoperability and compatibility problems. Here an enterprise Oil 1GIS as the answer to that kind of problems. Such a system designed to provide an integrated and interoperable environment in which the different departments and functionaries of an enterprise can make, access, view, and analyze data relevant to their tasks. This information can incorporate spatial as well as non-spatial datasets. Applications could range from complex spatial models to delivery of services encompassing government, business and citizens.
The processing of information by means of data collecting, storage and manipulation does sometimes not have a clear and logical structure that allows decisions makers doing effectively in the oil business.
Firstly, we have the definition and basic theoretical concepts of environment, secondly a review stepper of the philosophy which was conceived with the geographic information system, ending with the results and analysis of the same Web viewer.En estos dÃas, la actividad de exploración petrolera se basa principalmente en la integración y el análisis multidisciplinario de datos de diferentes fuentes: Multipropósito, catastro, uso del suelo, fotografÃas aéreas e imágenes de satélite, separados como topográficos, geomorfológicos, geológicos, geofÃsicos de la tierra y el aire, y asà sucesivamente. Además, las organizaciones garantes para la exploración petrolera deben establecer relaciones con un gran número de otras entidades, de las que toma o comparte la información manejada.
El procesamiento de la información por medio de la recopilación de datos, el almacenamiento y la manipulación a veces no tienen una estructura clara y lógica que permita a los tomadores de decisiones haciendo efectivamente en el negocio del petróleo.
En primer lugar, se tiene la definición y los conceptos teóricos básicos de medio ambiente, en segundo lugar una revisión paso a paso de la filosofÃa que nace con el sistema de información geográfica, para terminar con los resultados y análisis del visor web