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The Microeconomics of the Latvian Railway
No full textThis study is targeted on the explanation of how the microeconomic behavior of the public-use rail infrastructure manager interacts with the response of the macroeconomic national wellbeing from the economic theory’s perspective. This empirical research, based on hypothetical-deductive procedures and the system object oriented analysis, finds out the distinctions of the rail market that impacts the usage of the rail infrastructure resources in connection with the state detected indicators of performance.
The consistent national transport policy should be oriented on the backing of non-price preferences of the rail infrastructure, participation in an effective coordination among inland members of the transport corridor, as well as the security of investment opportunities.
The obtained results could be used for the Latvian public-use railway infrastructure development modeling and considered in national transport development plans
Telework in Europe and Latvia: State-of-the-art and Future Prospects
No full textPurpose of the article. More usually companies are using telework – a wide-spread practice that allows employees and their tasks to be shared across settings away from central place of business or physical organizational location. Flexible work arrangements are increasingly seen as a key in helping women and men strike a better balance between work, private and family life. Moreover, telework may serve as a tool for regional development as it allows reaching the concentration of resources by using information and communication technologies.
Methodology/Methods. The article has been prepared based on the analysis of primary and secondary sources, outcome synthesis and the evaluation of results of a survey of public officials of Latvia (n=1244) and semi-structured interviews with five teleworkers.
Scientific Aim. The purpose of this research is to assess the demand for telework in Latvia and make suggestions for the facilitation of telework (not only in metropolitan, but also less populated areas) by taking into account the European experience.
Findings. Even if the issue of telework (distant work, smart work) can be found in the European Commission’s agenda the level of employees in European Union working as teleworkers is still rather low. The Latvian case study shows that there is a potential to extend the use of telework. Young people who have established their own business are the first in line to become teleworkers. Also public sector officials would like to be involved in teleworking and believe that it would increase their performance. However, most of the employed are sceptical about the use of telework.
Conclusions. Explanatory and encouraging measures could help to foster the use of telework. Establishment of smart work centers could be a promising solution for further spread of telework, including the countryside, thus also facilitating the regional development
Corporate Tax Policy Reform Issues in Latvia: Lessons Learned and Further Considerations
No full textTaxation policy is one of the main instruments which can affect some national economy sectors, ensure development of any territory by special provisions in tax laws. The current Latvian tax policy is mainly based on the continuation of the tax policy followed since the tax reform of 1995, generally the system goal was to ensure capital inflow and capital market activities, with the aim to increase foreign direct investment and promote the development of the national economy. Research of the current status of taxation policy and quality of the state budget revenue sources enabled to suggest some short run solutions. As main result of the paper proposals on the Introduction of special R&D tax regime, including intellectual property income (royalty) regime and Introduction of special tax-free reserves for investments are offered. Research is based on traditional economic science methods, including comparative analysis and practical experience of tax policy implementation. Implementation of prepared recommendations gives a premise to ensure competitiveness of Latvian tax system
Engineering Sciences at the Riga Technical University
No full textThe Riga Technical University (RTU) is the successor to the Riga Polytechnic founded in 1862 and given the name of the Riga Polytechnical Institute (RPI) in 1896
The Mathematical Modelling of Heat Transfer in Electrical Cables
No full textThis paper describes a mathematical modelling approach for heat transfer calculations in underground high voltage and middle voltage electrical power cables. First of the all typical layout of the cable in the sand or soil is described. Then numerical algorithms are targeted to the two-dimensional mathematical models of transient heat transfer. Finite Volume Method is suggested for calculations. Different strategies of nonorthogonality error elimination are considered. Acute triangles meshes were applied in two-dimensional domain to eliminate this error. Adaptive mesh is also tried. For calculations OpenFOAM
open source software which uses Finite Volume Method is applied. To generate acute triangles meshes aCute library is used. The efficiency of the proposed approach is analyzed. The results
show that the second order of convergence or close to that is achieved (in terms of sizes of finite volumes). Also it is shown that standard strategy, used by OpenFOAM is less efficient than the
proposed approach. Finally it is concluded that for solving real problem a spatial adaptive mesh is essential and adaptive time steps also may be needed
Talent Management in Public Administration Institutions: the Case of Latvian Customs
No full textCreation of highly professional public sector and professional customs administration is a key issue for sustainable development of national economies while employees are key persons for customs administration. Attracting talented employees, retaining and attracting the best employees are some of the strategic issues for the customs authorities in order to ensure the public interests. The paper aims at exploration of current human resource management system of the Latvian customs and the identification of talent management system implementation factors. Analysis of model advantages is also conducted. The conventional quantitative and qualitative data analysis methods of economics as well as inductive and deductive research methods were used. The research resulted in the creation of the proposals for the possible talent management model in the SRS
Measuring the Performance of Process Synchronization with the Model-Driven Approach
No full textConcurrent and parallel computing can be used to effectively speed up computations. However, the overall performance gain depends on the way how the concurrency has been introduced to the program. Considering process synchronization as one of the most important aspects in concurrent programming, this paper describes the possibility of application of the model-driven approach in the concept of a software framework for measuring the performance of process synchronization algorithms. Such framework could help determine and analyze the features of specific synchronization techniques in different cases, depending on different input parameters
Development of Customer Centric Business Model in a Commercial Bank
No full textPromocijas darba mērķis ir attīstīt uz klientu orientētu komercbanku biznesa modeli un sniegt komercbankām priekšlikumus klientu kapitāla pārvaldībai, ņemot vērā Latvijas komercbanku darbības efektivitātes analīzes un klientu kapitāla koncepcijas izpētes rezultātus
Digitally Controlled Synchronous Buck-Boost Converter for Ultracapacitor Based Energy Storage Application
No full textThis paper presents a synchronous buck-boost DC-DC converter which connects the ultracapacitor pack and a DC bus of an electric vehicle. In order to control this kind of DC-DC converter the digital signal processor (DSP) is used. The proposed power converter charges ultracapacitor pack to store the kinetic energy during vehicle braking and regenerate this stored energy during next speed up. In the paper the software algorithm of the control loop of the converter is presented. The experimental test of the DC-DC converter was performed using the test platform for DC electric motor of traction vehicle. The presented switched converter can be used for electric vehicle with low-power DC electric motor
Computational Aspects of 'North-East Volatility Wind Effect'
No full textThis article describes computational aspects of stock index analysis by using wavelet filtering. Such computations are costly from chip-cutting time perspective. Algorithms used for analysis are very important part of research, that's why computational part is described in current paper. Current paper contains also a representation of 'North-East Volatility Wind Effect' in a complex plain, which has not been done before