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    18420 research outputs found

    On Road of ”EUPOS® Contribution to GOCE Mission”

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    The ground based augmentation system EUPOS® is widely used for land surveying where the height component is substantial. The high quality geoid model for normal or orthometric height determinatian is needed. Therefore EUPOS® community is willing to support the European Space Agency (ESA) Gravity and solid state Ocean Circulation Explorer (GOCE) mission which aims to 1-2 cm precision geoid model determination. The project proposal ”EUPOS® contribution to GOCE mission” has been accepted by ESA. However, accomplishment of EUPOS® liabilities in this project are rather sporadic due to the professional daily responsibilities of the corresponding organizations of EUPOS® partner countries. In spite of this we are trying to improve our activities in contribution to GOCE mission

    The Transformation of Society`s Perception of Urban Value: in Eastern Europe in the Period after the Breakdown of the Soviet Union

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    The paper has the following objectives: •to outline the historically most significant political and economic decisions, relating to perceptive alteration concerning urban environment value; •to describe the reform of real estate ownership while countries moving to market economy; •to analyze the alteration processes of public responsibility for urban environment in the Baltic States as a whole; •to characterize the development planning of urban environment value and quality, involving the public

    Algorithm for Increasing Traffic Capacity of Level-Crossing Using Scheduling Theory

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    In this paper authors present heuristics algorithm for level-crossing traffic capacity increasing. The genetic algorithm is proposed for this task solution. To create control centre and installed embedded intelligent devices on railway vehicles are proposed to control its motion speed and operate with level-crossing barriers. Algorithm is tested using computer. Results of experiments show big promises for rail transport schedule fulfilment and level-crossing traffic capacity increasing using proposed algorith

    Mathematical Simulation, Determination and Analysis of the Magnetic Field Occurred by the Armature Reaction of the Synchronous Machine

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    To solve partial derivative equations for vector magnetic potential by method of mathematical simulating finite element method is used. Designed, theoretically based, and described method which allows from stationary magnetic field simulation results to achieve vector potential as the spatial coordinate’s functions so obtaining the flux leakage with the armature winding as a function of time. Calculations are made for a particular synchronous machine and from simulation results the synchronous inductive reactance values are obtained

    Virtual Image Analyzer-Synthesizer Based on the Novel Discrete Orthogonal Transforms

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    The Matlab/Simulink based interactive virtual Image Analyzer-synthesizer (IMANSY) is presented. The present tool can be used for both analysis and synthesis of images using the rotation angles based parametrical discrete orthogonal transforms. The virtual IMANSY is developed for both Windows and Linux environment. The prototyping of novel image processing algorithms can be provided using the developed tool. A simple example of image analysis is given

    Komercbankas klientu kapitāla vērtēšanas problēmas

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    Viens no galvenajiem nosacījumiem ekonomiskai attīstībai ir efektīva Latvijas banku sistēma, lai komercbankas spētu nodrošināt finanšu stabilitāti, viens no nozīmīgākajiem rādītājiem ir bankas kapitāla pietiekamība, kas sevī ietver arī jēdzienu „klientu kapitāls”. Neskatoties uz to kādas jaunas tehnoloģijas vai jaunus produktus bankas piedāvā saviem klientiem, tām neizdosies noturēt esošos un piesaistīt jaunus klientus, ja kā viena no galvenajām prioritātēm netiks izvirzīta savstarpējās attiecības. Jo bankas klienti savā veidā ir visvērtīgākie aktīvi, kuri netiek atspoguļoti kopējā bilancē. Līdz ar to katrai bankai ir jāiemācās piesaistīt savus klientus tā, lai tos nespētu pārvilināt konkurenti. Tāpēc svarīgi ir izveidot ciešu kontaktu arī ar klientiem, kuri reti ierodas bankā un savu finanšu darbību galvenokārt veic caur attālināto norēķinu sistēmu. Kā arī klientu attiecību veidošanā ir jāiesaistās ne tikai bankas operāciju veicējiem, bet arī augstākajam vadības līmenim. Komercbankām ir jāizprot un jāpārzina savu klientu vēlmes, kā arī nepārtraukti jāseko to izmaiņām. Lai bankas spētu nodrošināt klientu lojalitāti savai bankai un līdz ar to klientu kapitāla neaizplūšanu, tika izvirzīti vairāki integrētā intelektuālā kapitāla nosacījumi, kuri ļāva noskaidrot no kādiem komponentiem sastāv klientu kapitāls

    Advancements of the Topological Functioning Model for Model Driven Architecture Approach

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    This paper describes the advancements of the Topological Function-ing Model (TFM) for Model Driven Architecture (MDA) approach. This ap-proach recognizes the computation independent nature of a TFM and suggests it to be used as the Computation Independent Model (CIM) within MDA, thus partially automating system analysis. Since the proposal of this approach, there have been a number of significant improvements, revealing new possibilities for system analysis, domain modeling and system design modeling. These ad-vancements include integrating knowledge engineering with system analysis for domain modeling and acquiring a Topological Class Diagram, thus provid-ing unique features within Platform Specific Model (PSM) for further trans-formation and code generation

    Guidelines for Autonomous Data Logger Design

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    The guidelines of autonomous data logger equipped with SD flash card are described. Various micro power sources are proposed for implementation of autonomous work, as well as the problem of uninterruptable power supply is discussed and power supply prototype is built powering from custom design Solar panel and Li-ion battery. In the context of data logger’s power consumption minimization, the use of various microcontroller’s internal peripheral devices is described and software code is analyzed

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