Search results for "Sources"
showing 10 items of 2554 documents
Use of the residual capacities of existing reservoirs as storage of the electricity produced by grid-connected intermittent RES plants, by means of p…
2013
EUROPEAN UNION EMISSIONS TRADING SYSTEM’S IMPACT ON LATVIA’S COMPETITIVENESS
2012
The goal of this paper is to analyse the general impact of the European Union Emissions Trading System (EU ETS) on Latvia’s competitiveness. The hypothesis of this paper – the EU ETS in past did not had a significant impact on Latvia’s competitiveness. At the beginning of the paper the EU ETS mechanism is discussed in the context of M.E. Porter’s identified principal factors determining state’s competitiveness. Afterwards the EU ETS operation in Latvia is described and its impact on Latvia’s competitiveness is analysed. The analysis is based on statistical data about Latvia’s 79 companies and their operation in 2005-2010, inter alia, allocations and transactions of European Union Allowances…
Energy-saving analysis of hydraulic hybrid excavator based on common pressure rail
2013
Published version of an article in the journal: The Scientific World Journal. Also available from the publisher at: http://dx.doi.org/10.1155/2013/560694 Open Access Energy-saving research of excavators is becoming one hot topic due to the increasing energy crisis and environmental deterioration recently. Hydraulic hybrid excavator based on common pressure rail (HHEC) provides an alternative with electric hybrid excavator because it has high power density and environment friendly and easy to modify based on the existing manufacture process. This paper is focused on the fuel consumption of HHEC and the actuator dynamic response to assure that the new system can save energy without sacrificin…
Fabrication of cobalt and cobalt oxide/graphene composites: towards high-performance anode materials for lithium ion batteries.
2010
Open Educational Resources - in Engineering Education, Case Study at UC/AGH, UB and ULBS
2019
Abstract To change the educational scene in the epoch of the digital generation there is the possibility of using Open Education (OE) and Open Educational Resources (OER). The term “open educational resources” refers to resources with free access to use, adaptation and redistribution. The objectives of the research are to determine the degree of knowledge and use of OER in three Engineering Universities in three countries (Poland, Hungary and Romania) and to find out whether there is a relationship between the institutions in terms of knowledge and use of OER. The measurement is made by applying the survey method on a sample of n = 192. As a tool we use the questionnaire with 15 questions s…
Versatile tool for competence management - an e-portfolio management system for higher education in applied sciences
2011
In the line of outcome based education and transferability of credits, we study a Higher Education case and propose an e-Portfolio solution as a versatile tool for assessment tasks. The solution tackles the problems firstly, of accreditation of prior achievements from both institutional and experiential learning. Secondly, the developed tool carries the process of learning outcome definitions management (derived from the real employment world), and the learner self-assessment and self-reflection as well as the guidance and support for these. The e-Portfolio management system, ePofo, supports the identification, assessment, recognition and accreditation of prior learning achievements and lea…
Motivation and Job Satisfaction among Information Systems Developers — Perspectives from Finland, Nigeria and Estonia: A Preliminary Study
2006
Information Systems (IS) have become one of the most important assets in organisations over the past decades. Adopting and using IS bestows a variety of advantages to organisations that are adept at it (Senker and Senker, 1992). Developing IS within organisations, unarguably serves the objectives of management. To that end, information systems development (ISD) professionals are pivotal in the implementations of such systems and their motivation and job satisfaction equally paramount. Some researchers have also commented on economic value of IS professionals to organisations (Niederman and Crosetto, 1996) Apparently, there is a growing body of literature on the issue of motivation and job s…
Energetic Sustainability Using Renewable Energies in the Mediterranean Sea
2016
The paper is focused on the analysis of the electrical energy sector in the Maltese islands, focusing on the employment of Renewable Energies in order to increase its energy independence. The main renewable source here proposed is wave energy: thanks to its strategic position, Malta will be able to generate electrical energy through the use of an innovative type of Wave Energy Converter (WEC) based on the prototype of linear generator designed and developed by the University of Palermo. This new technology will be able to cut down the electrical energy production from traditional power plants and, consequently, the greenhouse gas emissions (GHG). Wave energy source and off-shore photovoltai…
Energy Saving in Public Transport Using Renewable Energy
2017
Hydrogen produced by renewable sources represents an interesting way to reduce the energetic dependence on fossil fuels in the transportation sector. This paper shows a feasibility study for the production, storage and distribution of hydrogen in the western Sicilian context, using three different renewable sources: wind, biomass and sea wave. The objective of this study is the evaluation of the hydrogen demand, needed to replace all diesel supplied buses with electrical buses equipped with fuel cells. An economic analysis is presented with the evaluation of the avoidable greenhouse gas emissions. Four different scenarios correlate the hydrogen demand for urban transport to the renewable en…
Mechanical Tests on Innovative BIPV Façade Components for Energy, Seismic, and Aesthetic Renovation of High-Rise Buildings
2018
The paper shows the results of mechanical tests carried out on prototypes of a new Building Integrated Photovoltaic (BIPV) component developed by the author and SBskin Smart Building Skin s.r.l. This patented innovative component is able to merge structural function, insulation proprieties, and production of clean energy for retrofit actions and/or the construction of translucent faç