Abstract data types operations

Recently, Diercksen and Hall (1) presented the OpenMol Program a proposal for an open, flexible and intelligent software system for performing quantum chemical computations. Central to their proposal was the observation that there is a close relationship between an abstract data type operation and a production rule in a rule-based expert system. The aim of this paper is to explore the establishment of a sound theoretical foundation for this relationship. 

On the data structuring level the method for defining semantics is borrowed from the concepts of abstract data types the effect of elementary operations on the data structure (creation, deletion, identification, navigation) is used. 

The creation of a new type of information system - the data bank - acquired special importance. In contrast to the documentary type of information retrieval system, data banks can be used not only to abstract data but also to calculate new results on the basis of these data with the help of logical and mathematical operations. 

Support software must be developed in each of these areas and integrated into the DBMS for every new abstract data t3q>e. For example, to create a chemical structure ADT, a storage format, such as a connection table format, must first be defined. Then operators for full structure, substructure, and other types ol structure searches must be defined. Access methods need to be implemented to provide fast structure searches and finally, the characteristics of the various structure searches must be made known to the query optimiser to allow efficient overall query execution. 

ABSTRACT This paper provides a short review of recent developments in crash pulse analysis methods and a short review of wavelet based data processing methods. A discrete wavelet transform can he performed in 0 n) operations, and it captures not only a frequency of the data, but also spatial informations. Moreover wavelet enables sparse representations of diverse types of data including those with discontinuities. And finally wavelet based compression, smoothing, denoising, and data reduction are performed by simple thresholding of wavelet coefficients. Combined, these properties make wavelets a very attractive tool in mary applications. Here, a noisy crash signals are analyzed, smoothed and denoised by means of the discrete wavelet transform. The optimal choice of wavelet is discussed and examples of crash pulse analysis are also given. 

The electronic supply chain units are represented each in a separate pool named as a service unit with a specific type. These pools represent abstract service providers. The actual service providers can provide several of the services required, some of them act as service aggregators and some services can be provided by the physical supply chain units. The interrelationships are shown as message flows among the pools. The message flow shows only purely electronic information processing activities. For instance, a shipment activity includes shipment data processing, shipment confirmation and other operations but these information processing activities are perceived as an essential part of physical activities and are included in the Deliver product task. 

ABSTRACT The development of new techniques, technology and the progress of civilization meant that man exploits Technical Objects (TO) offers a set of numerous and interrelated services implemented under different types of systems. In most cases, these are anthropo-technical systems (SA-T) taking into account the essential components of the process of exploitation man—the operator, the technical object—hardware and software, and the environment—external and internal. Was developed a model of situational awareness SA-T in the implementation of services based on efficient transport of data between the operator and TO (machine, robot) using any interface. The result is a proposal to develop a comprehensive measure to estimate the reliability of SA-T using effectiveness and potentiality trajectories identifying the state of readiness of the system. The paper ends with conclusions of the research and a summary with prospects for further analysis SA-T. 

The Normal erLSystem refines the base system by adding the required data to the tagged type and provides appropriate instances for the Handle abstract operation. 

ABSTRACT This study analyzes the real movements of container ships. This type of study is significant for the problem of waiting ships and the creation of a smooth operating system for maritime transportation. This paper analyzes the movement of container ships sailing in the Seto Inland Sea, Japan. This ocean area represents a primary traffic route for container transportation particularly for China, Japan, and South Korea. This study utilizes an automatic identification S5rstem (AIS) data, which facilitates exact and quantitative collection of ship navigation data. The AIS data analysis reveals the total operations of container ships. This study represents core research that contributes to securing the safety and efficiency of maritime transportation. 

As a part of the plant safety framework, common data component is proposed to manage all common data for the plant safety framework and to accumulate the safety-related common data across plant activities. This component is a part of the data warehousing for the plant-wide activities across the plant lifecycle. The object-oriented modeling approach is used to abstract these common elements within the plantwide conceptual model while the physical data are within the data warehouse frame. The safety common data (SCD) component includes (but not limited to) the possible source of data errors, documentation standards (vocabulary), generic cause-consequence for each component type, checklists for operation-type jobs, and standard safety interlock levels. The common data are essential to be organized and formatted in a... 

DIS), an extensible object-oriented database model, which has also been used for VLSI/CAD application environments (see and ). The 3DIS provides an approach in which data and the descriptive information about the data are handled in a uniform framework. It is especially suited to represent information objects of various levels of abstraction and modality, and supports various views of the same data which is essential for this type of engineering database. In addition to that, the EDEN system supports a number of novel modeling constructs, one of which makes it possible to interpret parts of the data as graphs and to express retrievals, constraints and updates in terms of graph operations. 

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