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Applied Computer Science Volume 11, Number 1, 2015

COMPUTER-AIDED PROJECT OF THE PROGRESSIVE GEARS INSTALLATION VALIDATION WORKSTATION

In reply to the Polish market demand and the increase of competitiveness in the lifting sector the innovative construction of CHP 2000 type gear with changeable loading capacity configuration has been created. Computer-aided project of the workstation to validate the installation of a friction lift brake (the gear) in the production conditions is presented in the research study. The construction and the operation scheme of the lift braking system are described. Methodology of validation has been proposed at the stage of production on the basis of variability of the production demand for the presented model of the progressive gear.

FEATURES OF THE CONTENT-ANALYSIS METHOD FOR TEXT CATEGORIZATION OF COMMERCIAL CONTENT IN PROCESSING ONLINE NEWSPAPER ARTICLES

This paper presents the features of text categorization of commercial content in linguistic modelling. Description of syntax sentence modelling is applied to automate the processes of analysis and synthesis of texts in natural language for commercial content categorization. This article suggests methods of content analysis for online newspaper. The model describes the processing of information resources systems of content analysis and simplifies the technology of content management system automation. General problems of syntactical and semantic content analysis and functional services of content management system are analysed.

NUMERICAL ANALYSIS OF THE STRESS AND DISPLACEMENT LEVEL CAUSED BY AXIAL LOAD P=15000 N IN A CAR SCISSOR JACK BD-02B2

The paper presents a numerical analysis of the stress levels occurring in the scissor jack BD-02B2. Model of scissor jack was prepared in an environ-ment Catia V5R20. A simplified geometry for numerical calculation imported into the program Abaqus 6.10, in which the analysis was performed. FEM analysis was performed for the case when the scissor jack was at maximum lift height. Level occurring stress were compared with respect to the yield strength and tensile strength. The study also shows the level of displacements occurring under maximum load of the system. The results of numerical calculations have provided the necessary information concerning the degree of effort of mechanism. With the FEM analysis it was possible to determine the critical zones in the scissor jack.

DESIGNING OF STRUCTURAL ONTOLOGICAL DATA SYSTEMS MODEL FOR MASH-UP INTEGRATION PROCESS

This paper describes the construction of structural ontological data systems model in the process of data integration. The usage of ontologies in the context of improving the process of dynamic semantic data integration has been characterized. The algorithm of constructing of structural ontological data integrated systems model has been designed. This algorithm is based on the rules of using and application of ontological modeling. The algorithm as a sequence of five steps describing tasks for each of them has been presented.

SELECTED METHODS OF MAKING THREE-DIMENSIONAL VIRTUAL MODELS OF MUSEUM CERAMIC OBJECTS

The paper presents available three-dimensional scanning technologies with a particular focus on the digitisation process of ceramic objects. of the research carried out show that in digitising ceramic objects with concave ornamentation by the Roland PICZA LPX-600 scanner the method of scanning by planes should be used. While digitising such objects with the ZScanner ® 700 one should use the resolution of 0,4 mm. The paper also shows the suitability of reference imaging in recreating the shape of the object in constructing 3D models. This shape can be used in virtual assembly of the shells of broken ceramic vessels.

THE ACCURACY OF AN ACCELERATED METHOD FOR THE EVALUATION OF LIFE OF CYLINDRICAL GEARS WITH PROFILE CORRECTION

This paper presents an accelerated method for the evaluation of life of cylindrical gears with profile correction. Compared to a more accurate solution based on the generalized method for evaluating the wear and life of cylindrical involute gears, the new method enables accelerating this process by over 16000 times. The method was used to estimate the life of a cylindrical spur gear depending on different ranges of blocks describing gear teeth meshing conditions (i.e. the number of gear revolutions). The accuracy of the results obtained thereby was examined, too. It has been found that when the range of a block is increased by 3000 times, the deviations of the numerical solution are below 0.5%.

THE ANALYSIS OF THE IMPACT OF THE REGULATORY COMPONENT ON BUSINESS ENVIRONMENT IN UKRAINE

To analyze the impact of the normative regulatory sphere on business environment in Ukraine in order to identify shortcomings of the existing mechanism of the regulatory activities and prospects of its improvement on the current stage of economic development. To prove the feasibility of studies towards the formation mechanism of information relations in the regulatory activity.

EFFECTS OF FIELD’S TOPOLOGY ON ENERGETIC EFFICIENCY OF RAPESEED PLANTATION FOR BIOFUEL PRODUCTION

The model, developed earlier, have been designed to the studies of energy gain in the  biofuels production, as compared to the  sum of energy inputs on various production steps, and in processes enabling biomass conversion to energy. The present paper shows application of that model towards estimation of the contribution of energy used for commuting between agricultural production sites for a chosen example of plantation’s topological characteristics.  Algorithm for computations is elaborated, and numerical example is shown. The sizes of the fields as well as distances between them determine the amount of energy spend for the agricultural work in addition to the tillage technologies being applied.