Data Processing Communication Research Articles

TELE-CONTROLE IN ELECTRICAL STATIONS

The extension of computational technique for the generalization of automatics, information and process monitoring involve the conception and materialization of complex data acquisition equipments, processing, memorizing and sending data taken from those processes at a higher level - dispatcher. In this way, it is presented data acquisition equipment for energetic measures which is incorporated in a dispatching system aiming the monitoring and storing of electrical measures which are taken from electrical cells which compose the supervised electrical station. There are distinguished the component elements of the monitoring system: Local data acquisition equipments (LDAqE), Local data acquisition equipments synchronization subsystem, Data communication subsystem, Processing, storing and data displaying subsystem and the software for data processing at the dispatcher level and also at the local data acquisition equipment level.

DATA ACQUISITION EQUIPMENT FOR ENERGY MEASURING IN ELECTRICAL STATIONS

Evolution and large scale spreading of the computational techniques allowed the design and realization of some acquisition, processing, storing and sending data taken from the process equipments to a superior level - dispatcher. In this way, it is presented a data acquisition equipment for energetic measures which is incorporated in a dispatching system aiming the monitoring and storing of electrical measures which are taken from electrical cells which compose the supervised electrical station. There is shown the system architecture underlining the taken signals, transducers used and the component elements of the system: Local data acquisition equipments (LDAqE), Local data acquisition equipments synchronization subsystem, Data communication subsystem and Processing, storing and data displaying subsystem.

Integration of Internet and web-based tools in new product development process

New product development is considered to be vital for a company's long-term survival. In today's rapidly changing production environments customers are asking for highly customised products with affordable prices. A new production era that is known as mass customisation has already started in many sectors. The customer should become an integral part of the product design process in such an environment. The integration of Internet and web-based tools for customer data collection, communication and data processing is inevitable in order to speed up the production process and cut down the costs. This paper deals with management of product development with focus on synthesising new technology based concepts related to product development, and discusses their use in the various stages of product development process. It also provides guidelines for successfully implementing technology oriented new product development practices with a customisation perspective.

New Global Communication Process in Thermodynamics: Impact on Quality of Published Experimental Data

Thermodynamic data are a key resource in the search for new relationships between properties of chemical systems that constitutes the basis of the scientific discovery process. In addition, thermodynamic information is critical for development and improvement of all chemical process technologies. Historically, peer-reviewed journals are the major source of this information obtained by experimental measurement or prediction. Technological advances in measurement science have propelled enormous growth in the scale of published thermodynamic data (almost doubling every 10 years). This expansion has created new challenges in data validation at all stages of the data delivery process. Despite the peer-review process, problems in data validation have led, in many instances, to publication of data that are grossly erroneous and, at times, inconsistent with the fundamental laws of nature. This article describes a new global data communication process in thermodynamics and its impact in addressing these challenges as well as in streamlining the delivery of the thermodynamic data from "data producers" to "data users". We believe that the prolific growth of scientific data in numerous and diverse fields outside thermodynamics, together with the demonstrated effectiveness and versatility of the process described in this article, will foster development of such processes in other scientific fields.

Prediction of malignancy degree in brain glioma using selective neural networks ensemble

A clustering algorithm based selective neural networks ensemble (CLUSEN) is proposed to predict the degree of malignancy in brain glioma. Since the degree prediction of malignancy is critical before brain surgery, many learning methods are used like rule induction algorithm, single neural networks, support vector machines, etc. Ensemble learning methods can improve the generalization of single learning machine, and are becoming popular in the machine learning and medical data processing communities. The procedure of CLUSEN can efficiently remove redundancy learning individuals and help improve the diversity of ensemble methods. CLUSEN is used to predict the degree of malignancy in brain glioma. Experimental results on a set of brain glioma data show that, compared to support vector machines, rule induction and single neural networks, the classification accuracy of CLUSEN is higher.

XML-based IUPAC standard for experimental, predicted, and critically evaluated thermodynamic property data storage and capture (ThermoML) (IUPAC Recommendations 2006)

Abstract ThermoML is an Extensible Markup Language (XML)-based new IUPAC standard for storage and exchange of experimental, predicted, and critically evaluated thermophysical and thermochemical property data. The basic principles, scope, and description of all structural elements of ThermoML are discussed. ThermoML covers essentially all thermodynamic and transport property data (more than 120 properties) for pure compounds, multicomponent mixtures, and chemical reactions (including change-of-state and equilibrium reactions). Representations of all quantities related to the expression of uncertainty in ThermoML conform to the Guide to the Expression of Uncertainty in Measurement (GUM). The ThermoMLEquation schema for representation of fitted equations with ThermoML is also described and provided as supporting information together with specific formulations for several equations commonly used in the representation of thermodynamic and thermophysical properties. The role of ThermoML in global data communication processes is discussed. The text of a variety of data files (use cases) illustrating the ThermoML format for pure compounds, mixtures, and chemical reactions, as well as the complete ThermoML schema text, are provided as supporting information.

The impact of the apex node on routing inside a pyramid structure

In this paper, we show that the apex node of a pyramid structure serves as both the only center and the only median vertex of its underlying graph. This fact explains the central role that the apex node often plays in the data communication process within a pyramid structure.

Cumulant-based inverse filters for blind deconvolution

Blind deconvolution of linear time-invariant (LTI) systems has received wide attention in various fields such as data communication and image processing. Blind deconvolution is concerned with the estimation of a desired input signal from a given set of measurements. This paper presents a technique for reconstructing the desired input from only the available corrupted data. The estimator is given in terms of an autoregressive moving average (ARMA) innovation model. This technique is based on higher order statistics (HOS) of a non-Gaussian output sequence in the presence of additive Gaussian or non-Gaussian noise. The algorithm solves a set of overdetermined linear equations using third-order cumulants of the given non-Gaussian measurements in the presence of additive Gaussian or non-Gaussian noise. The inverse filter is a finite impulse response (FIR) filter. Simulation results are provided to show the effectiveness of this method and compare it with a recently developed algorithm based on maximizing the magnitude of the kurtosis of estimate of the input excitation.

Evaluation and strategy of different data parallel implementation methods of a stiff chemical non-equilibrium flow solver

The primary focus of current research concerns three different parallelization implementation methods of a widely used semi-implicit chemically non-equilibrium reactive Euler equations solver on the Vector Parallel Processor (VPP) computer. The main objective is to reduce the relative cost of the convection term calculation and the chemical term computation, and also to optimize the global cost of the numerical simulation by parallel implementation. Three different data parallel methods: two methods based on Domain Decomposition Method (DDM) and one method on Multiblock Structured Algorithm (MSA) are outlined. The characteristics of the three methods are commented on, such as vectorization index, data communication process and parallel I/O. The approaches of the current practical research provide insight into important issues of parallel computing for common applications. Finally, a summary of the parallelization strategy is presented and conclusions are drawn.

Procudere for Definition of Neighborhood in Faulty Hypercube Multiprocessor

A procedure for definition of neighborhood and fault free subcubes in a faulty hypercube is developed in this study. The cube algebra operations are used for proposed procedure. With this, we can increase the number of faulty elements In the hypercube. Which is obstacle for effective data processing and communication processes in such a system.

設計生産コミュニケーションモデルの記述表現及び応用に関する研究 (第1報)

A fundamental concept of DMCM (Design and Manufacturing Communication Model) is proposed. This concept is to represent a design and manufacturing process as a communication activity. An abstractive “process” is introduced as a key concept of the DMCM that represents an information communication between objects. The object is represented as a communication target, and its inner activity is not treated. To accomplish this concept, a resource structure is proposed as a framework to construct a design and manufacturing communication model. In this framework, the model is constructed with a resource that represents several data communication target and communication process. A formal specification language EPDL (Engineering Process Description Language) is proposed. As an example, a design modification work is described.

Global Communication Language for Networks

With the advancement in the field of communication and computer hardware there is a growing need for having portable, continuous and interactive access to information. Although the developments in wireless communication hardware hold promise for this, the biggest hurdle in this field is the existence of different protocols which are used in data communication process. This has raised a need for a user-friendly, transparent and universal communication language.Telescript is an interpreted language that works independently any and all protocols and transports. The developers of Telescript, General Magic of USA plans to push Telescript as a standard for any type of network interaction from personal E-mail to interaction over commercial data networks http://dx.doi.org/10.14429/dbit.14.3.3100

Study of RF Coupling Behaviour of Digital Logic Devices

The paper deals with TTL, CMOS, STTL and HCMOS digital logic devices for their functional characteristics towards HF, VHF and UHF frequencies. It has been identified that commonly used logic devices provide a very high gain RF coupling path particularly when used as terminal devices in data transmission lines. The uncertain characteristics of the gates at the transition region have been reported in this paper. Useful data concerning RF threshold levels, RF gain at the transition state for the logic families are included. Various methods to control the unwanted RF gain of these devices and their implications on the basic characteristics have been studied and also reported. The result of analysis can be used in the selection and application of these devices in strategic areas of data communication and signal processing.

A structural analysis of database management system technology with some Japanese experience

This paper proposes a categorization scheme for database management system (DBMS) technology. It also defines the context and technologies of DBMS, which consists of technologies related to (1) Organization and personnel training, (2) Hardware and software, (3) Data management, (4) User services, and (5) Evaluation. The paper, then analyzes the current status and problems of DBMS in Japan, within this framework. The data is based on results derived through postal questionnaires, a sample of a cross section of 218 data processing communities in industrial, financial, educational and governmental organizations and in-depth interviews. Finally, the authors consider the future DBMS technology.

A model for the protection of reusable software

In applied efforts to reduce the cost of the software life-cycle process, government agencies and industry are focusing on the reusability of software. Software reusability, both between various automated information systems and software projects, has become a primary requirement in many requests for proposals. Software reusability is, perhaps, one of the most significant low technology, cost-cutting methods available to the data processing community today. Without effective protective measures established and in place, however, reusing software can result in the proliferation of malicious code, resulting in the loss of dollars, possibly even lives. An effective protection plan for reusable software must combine verification of the software by the developer, appropriate protection of the software during both storage and use, guaranteed delivery and integrity when software is transferred, and re-verification of software by the new user prior to incorporation in a new design. NASA's approach to software protection establishes four hierarchical levels of automated information sensitivity and criticality and provides guidance for appropriate protective measures for each level. We advocate the addition of protection domains to the current NASA schema.

Practical engineering of knowledge-based systems

The evolution of a software development life cycle (SDLC) by the data processing (DP) community was principally an attempt to ensure that software systems could be built which were accurate, reliable and maintainable. If knowledge-based systems (KBSs) are to become an established technology within the DP industry an SDLC for their development will also have to be evolved which can ensure that the standards expected in commercial and industrial software are met by future KBSs. This paper describes a practical approach to building KBSs and, in particular, how the development of hybrid systems, containing both conventional and knowledge-based components, can be managed effectively.

Entwicklungstrends von Sensoren in der chemischen Technik

AbstractTrends in the development of sensors in chemical engineering. The present article surveys the state of the art and future developments of sensors, mainly in the chemical industry. Existing requirements are compared with solutions becoming possible by means of present or developing new technologies and measuring concepts. The discussion covers a wide range, from sensors for classical state variables to sensors for the determination of concentrations and biotechnological variables. It includes data communication and modern process control. Among new technologies microelectronics and integrated microcomputers are rated highest; in addition possible uses of electrooptics and glass fiber techniques are mentioned as well as solid state and biochemical components. Within the new concepts, measurements based on modelling and multisensor systems have gained a firm position in practical applications.

Using systems analysis techniques in the development of standards and procedures

In the process of working with a variety of corporations to design and produce standards and procedures, the author discovered that, while the need for comprehensive standards and procedures is great, many companies have failed to establish systematic methods for developing them. To help these companies establish a standards and procedures methodology, analysis techniques were instituted that had been developed by and for the data-processing community. It is argued that these techniques, which include top-down analysis of process flow, are effective because they encourage the companies to examine their top-level processes before analyzing their desk procedures. They also encourage the analysis of manual processes that can result in greater procedural efficiencies throughout the organization. The author looks at written standards and procedures, development and at the problems associated with the current state of procedure writing. Two case studies are presented.

Performance considerations for a distributed data processing system designed for high availability

The high-availability requirements of computerized systems that are needed to meet the objectives of the organization are being acknowledged more and more by the data processing community. The paper presents the planning process for a distributed data processing system designed to meet high availability requirements. This process was performed as a systems engineering activity in order to assess the feasibility of the presented approach, which was proposed to a customer.

Data communication and data processing — a basis for definition

The absence of a precise method of distinguishing data communication from data processing functions is complicating the Federal Communications Commission's Second Computer Inquiry and creating a climate of uncertainty in the teleprocessing industry. This article proposes a simple mathematical criterion for distinguishing between these two classes of functions, illustrates its application, and discusses associated regulatory policy issues.