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1.
Method for planning, optimizing, and regulating EV charging Infrastructure
Amor Chowdhury, Saša Klampfer, Klemen Sredenšek, Sebastijan Seme, Miralem Hadžiselimović, Bojan Štumberger, 2022, original scientific article

Abstract: The paper presents and solves the problems of modeling and designing the required EV charging service capacity for systems with a slow dynamic component. This includes possible bursts within a peak hour interval. A simulation tool with a newly implemented capacity planning method has been developed and implemented for these needs. The method can be used for different system simulations and simultaneously for systems with high, medium, and low service dynamics. The proposed method is based on a normal distribution, a primary mechanism that describes events within a daily interval (24 h) or a peak hour interval (rush hour). The goal of the presented approach, including the proposed method, is to increase the level and quality of the EV charging service system. The near-optimal solution with the presented method can be found manually by changing the service capacity parameter concerning the criterion function. Manual settings limit the number of rejected events, the time spent in the queue, and other service system performance parameters. In addition to manual search for near-optimal solutions, the method also provides automatic search by using the automation procedure of simulation runs and increasing/decreasing the service capacity parameter by a specifically calculated amount.
Keywords: service system, capacity planning, bursts, rush-hour, normal distribution, stochastic process
Published in DKUM: 24.08.2023; Views: 583; Downloads: 50
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2.
Public financial funds efficiency regarding the development of innovative activities in small and medium-sized enterprises : the case of Slovenia
Jože Jesenko, Uroš Stanič, Robert Rudolf, Vanja Rangus, Nataša Meršol, 2009, original scientific article

Abstract: In this article, the authors present a method of measuring the efficiency of use of national and European public funds for promoting action in companies, including the process from a draft idea to the placement of a product or service on market. The method of measuring has been done with a matrix system, through which we have shown the distribution of public funds between service brokers that offer services for the raising of the abilities to the companies. The matrix system includes the impact matrix of service brokers on innovation enablers. Based on the assembling matrix, we have composed efficiency measures, which can serve policyholders in guiding and controlling public funds.
Keywords: efficiency, public funds, matrix system, service
Published in DKUM: 10.07.2015; Views: 1672; Downloads: 182
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