A Substitution Based Model for the Implementation of PROLOG——The Design and Implementation of LPROLOG

Since PROLOG has been chosen as the Fifth Generation Computer's Kernal Language,it ispresently one of the hottest topics among computer scientists all over the world.Recently,theimplementation technique and the application of PROLOG have been developed rapidly.In thispaper,a new implementation scheme for PROLOG is proposed.The scheme is based on thesubstitution of instantiated veriable values.It has many advantages,such as a higher runningspeed,less main memory requirement,and easier to be implemented.The scheme has beenimplemented by the authors on IBM4341.     

The Design and Simulation of the 2-D micro-carving parallel robot

introductionR ecent years have witnessed the m icrom ation andintellectualized trend in the study of precise m echanism ,evidenced by the wide exploitation of m ini -robot.Sm all in size, larger in working dom ain, sophisticated indynam ically driving,precise in locating, the m ini-robot,boasts m uch to dealw ith operations in relation with m i-ni-object. M ini-robot goes into 2 m ain categories: spa-tialparallel m echanism (SPM ) and plane parallel m echa-nism (PPM ).Spatialparallel m echan…     

HOL-Boogie—An Interactive Prover-Backend for the Verifying C Compiler

Boogie is a verification condition generator for an imperative core language. It has front-ends for the programming languages C# and C enriched by annotations in first-order logic, i.e. pre- and postconditions, assertions, and loop invariants. Moreover, concepts like ghost fields, ghost variables, ghost code and specification functions have been introduced to support a specific modeling methodology. Boogie’s verification conditions—constructed via a wp calculus from annotated programs—are usually transferred to automated theorem provers such as Simplify or Z3. This also comprises the expansion of language-specific modeling constructs in terms of a theory describing memory and elementary operations on it; this theory is called a machine/memory model. In this paper, we present a proof environment, HOL-Boogie, that combines Boogie with the interactive theorem prover Isabelle/HOL, for a specific C front-end and a machine/memory model. In particular, we present specific techniques combining automated and interactive proof methods for code verification. The main goal of our environment is to help program verification engineers in their task to “debug” annotations and to find combined proofs where purely automatic proof attempts fail.     

The Design Liquid-level Monitoring System of Adopting the Ultrasonic Sensing Technology

Utilizing the technology of Ultrasonic wave, relevant test arithmetic and the PC to carry on monitoring, controlling and centralized management of the liquid-level in the liquid container. It can prevent from keeping in touch with the examined liquid, not only has increased the continuous working time of the system greatly, simplifying maintenance of the sensor conveniently, can also realize overhauling in producing and boost the productivity and management level. The working principle, hardware structure of the instrument and the design method are presented, and the selection of sensor and MCU is discussed in detail in this paper. MCU are used to control the emission and receiving. Then the liquid-level are calculated, which makes the design more intelligent.     

The Design of A/D Converter Circuit Adopting the Technology of PWM

This text has expounded the working principle of realizing A/D conversion that utilizes the timer within MCU and combines the technology of PWM. The design of hardware circuit, improved gradual approached trial arithmetic and relevant program design are discussed in detail. And it has analyzed the resolution of A/D converter based on the technology of PWM, etc.     

Parallelization of Algorithms and Codes of the Computational System “Potok-3”

The paper discusses creation of modern computational technologies and methods of parallel programming aimed at improving efficiency of solving fundamental scientific and applied problems. Primary attention is focused on theoretical issues and practical implementation of technological decomposition and parallelization of algorithms and codes of the computational system Potok-3, which is designed for the numerical modeling of aerodynamics and physical gas dynamics problems. General problems of portability of methods and algorithms, as well as program packages implementing them, designed for single-processor machines to multiprocessor computational systems are discussed.     

The Design of Distributed Telecontrol and Telemetry System

In this paper, a distributed teleeontrol and telemetry system is presented in which the master station, based on PC,acted as display, monitor and alarming center; the slaver station,based on MCS-80C31, is used as remote unit for acquiring data and control. Its Overall design and some detailed design are discussed in this paper.     

Combinatorial Grouping— A Lattice-Theoretic Method for the Design of Manufacturing Systems

Abstract

This paper presents a combinatorial method of grouping objects into guest families, and of providing accommodation in a system of host cells. The method maximises the amount of hospitality extended by the hosts towards the guests. A guest job requiring few facilities will have a greater chance of finding a host cell than a more demanding guest job, and not all the host cells will be equally busy. As a consequence, there will be greater scheduling flexibility and better cell utilisation.     

Mathematics for the Design of Variation: The “Nagashima!” Lamp Prototype

This paper describes the process for design, development and fabrication of a lamp prototype that worked as an experiment in “digital bridges” between different software, using Mathematica as the main source for design geometry that is passed dynamically to platforms for documentation, lighting analysis and rendering, as well as CNC machining for final fabrication. The process will be used as key for discussing the dynamic relationship between variation, design option and analysis, in relation to the richness of our design culture.     

The continuous measurement of the temperature of the upper layer of the sea—a practical approach

A new instrument for the continuous direct measurement of temperature in the upper layer of the sea (within the first millimetre) is described. The technique makes use of a miniature thermistor in a surface-floating hydrophobic support. A wide range of possible applications in fields such as oceanography and climatology exist, and the method also provides a promising alternative to the conventional ‘bottle and reversing thermometers’ or ‘bucket’ methods currently used to provide in situ data for comparison with remote-sensing measurements.     

Man-Computer Interaction—The Contribution of the Human Sciences

An introductory survey is presented of the possible contribution of the human sciences to man-computer interaction, based upon a full review of the relevant human factors literature which is to be published, A possible taxonomy for the field is proposed founded on broad divisions of the human sciences problem areas and of the types of computer systems and services. Using the taxonomy as a framework, some examples of relevant human sciences work and some problems and research needs are discussed.     

Design and Study of the Active Router Structure

Active network is a new framework where network nodes not only forward packets, but also perform customized computation on the packets flowing through them. It provides a programmable interface to the user where users dynamically inject services into the intermediate nodes. This paper brings forward a structure of active router based on 1P network, analyses the extended definition field of IP datagram at~u the format of the active 1P datagram, studies the module structure, the logic flow chart and the arithmetic of active router, thereby realizes the active networks technology in IP network and extends the service in existent network.     

The Design and Implementation of an OA System ZGL1

ZGLI,an office automation system for municipal administration,is presented.It is a distributedmicrocomputer system based on OMNINET.Each node of it is an IBM PC/XT microcomputer with Chinesecharacter facilities.The system consists of a distributed database management system,a Chinese characterelectronic mail system,a Chinese word processor and others.Its functions include document management,report form management,research project management,finance management and information access.     

The Design of Image Compression Algorithms Testing and Analyzing Tool

This paper studies the evaluation methods for image compression algorithms and proposes test methods for compression algo- rithms including horizontal comparison test and vertical decomposition test. On the base of this, we design and realize a testing and analyzing tool for performance of image compression algorithms. This tool can test and analyze compression algorithms and generate kinds of analysis chart automatically, provides a lot of convenience for users and has very important practical value. In order to im- prove efficiency, veracity and perfectibility of the tool, this paper presents selection method for test images and analysis method for test results which have certain theoretical meaning.     

The Design and Realization of Intelligent Loop-coil Detector in Traffic

1IntroductionWiththedevelopmentoftheeconomy,ITS(intelligentcommu-nicationsystem)wasbeingresearchedandattachedmoreimpor-tanceinChina.Asaimportantpartoftrafficinformationcollection,detectorswerepaidmoreandmoreattentionbyexperts.Vehicledetectorsaimattraffic-flowanddetectthepassingorexistenceofvehicles.itcanprovidesufficientinformationsothatthewholetraf-ficcontrolsystemcanobtaintheoptimalperformance.therearemanykindsoftrafficdetectorssuchasloop-coildetectors,videodetectors,microwavedetectorsands…