Search results for "Power"
showing 10 items of 5099 documents
Tradycyjny instytucjonalizm i jego znaczenie dla nauk politycznych
2015
The paper presents academic achievements of traditional institutionalism, the first scientific approach in political science, which was developed since the second part of the 19th century in USA, Great Britain, Germany and France. The author argues that this orientation had a creative influence on the progress of the discipline, however this impact is not appreciated by contemporary studies in the field of political science and political theory where limited understanding of the old institutionalism is promoted. The revision of this state of affairs has shown that, apart from the analysis of formal structures and institutions of state power, the traditionalists also have studied political p…
Re-thinking Nicholas J. Spykman : from historical sociology to balance of power
2020
This article examines Nicholas J. Spykman’s scholarship beyond geopolitics and International Relations (IR). Because his works have mainly been studied through these prisms, I argue that we have overlooked the most important underlying current of his work: historical sociology. As a result, the prevailing view of him is overtly narrow. When Spykman’s scholarly output is examined from the 1920s to 1940s, an entirely different view of Spykman emerges. Essentially, his fundamental understanding of world affairs derived from the German sociologist Georg Simmel’s theories. In the 1920s and 1930s, Spykman transmuted these underpinnings into IR that later in the 1940s guided his two major works: A…
Energy Management and Smart Grids
2013
The paper outlines energy management concepts and the smart grid evolution. The necessity of considering energy management as a crucial innovation in load supplying to permit a more powerful penetration of renewable energy usage at the building and city level and to perform energy savings and CO2 emissions reduction is pointed out. The driving factors to enhance the current power distribution are presented, and the benefits concerning smart grids are underlined. In the paper, a specific energy management analysis is reported by considering all the electric value chain, and the demand-side management and distributed on site control actions are described. To verify the benefit of energy manag…
European Career Development – A Challenge for European Human Resource Management
2013
Abstract European career development should be a challenge for each of us. Current situations, the European economic context, technological evolution, the opening of European labor market are allowing people to a higher mobility concerning personal career. Thus, the development of a European career can be a challenge for each of us, depending on personal choices and on the context and development of each person's life. Is European career a better solution for individual development? Is that professional perfection for each person? These are questions that I will try to answer in this study.
Reflections on Human Resources – Vital Intangible Assets of Organizations
2014
Abstract Starting from the reality that human resources represent the most important strategic resource of the modern organization and that each human being is a unique entity, with own personality, needs and offer, the investment in human resources should become the most important investments of organizations, despite being the most risky investments. The only alternative to avoid this risk and to bring together employee and employer on the same level is career management. From a different perspective, human resources represent the intellectual capital of organizations, the only ones that can assimilate and, from the perspective of the new economy, make the most of knowledge. All these asp…
Talent Competitiveness and Competitiveness through Talent
2014
Abstract The current economic environment makes us acknowledge that the human factor is the most critical resource for all national economies which aspire to improve their competitiveness and innovativeness in a sustainable way. Talent is the engine of that and a growing number of countries have recognized the importance of talent competitiveness. This article aims to cast a light on this matter and to present the findings of the Global Talent Competitiveness Report form 2013 which shows us why “the war for talent” is a global one. Also, the article provides some guidelines for a deeper understanding of talent: how we can attract and retain the workforce of the future.
OPTIMAL OPERATION OF POWER-SPLIT HYBRID ELECTRIC POWERTRAIN: COMPARISON BETWEEN TWO PERFORMANCE INDICES
2022
Among all the current environmentally-friendly ground vehicles proposed to reduce fuel consumption and emissions, power-split hybrid electric vehicles represent one of the most promising solutions. Their operation is based on the cooperation of the thermal engine and the electric unit enabled by mechanical transmissions consisting of planetary and ordinary gear sets. However, implementing proper energy management strategies to realise the best powertrain operations is crucial to maximise the environmental gain without compromising performance and drivability. For this purpose, an initial comprehensive analysis of the powertrain response is required. In this respect, this paper relies on a u…
Analytical-numerical analysis of closed-form dynamic model of Sayano-Shushenskaya hydropower plant : stability, oscillations, and accident
2021
This work is devoted to the analysis of a mathematical model of hydropower unit, consisting of synchronous generator, hydraulic turbine, and speed governor. It is motivated by the accident happened on the Sayano-Shushenskaya hydropower plant in 2009 year. In the analysis we follow the line of classical control theory approach developed in the works of famous scientists J.C. Maxwell, I.A. Vishnegradsky, A.A. Andronov, and F. Tricomi for the study of centrifugal turbine governor and electrical machines limit-load problem. It is shown that the occurrence of vibrations in the Sayano-Shushenskaya hydropower plant can be caused by nonlinear dynamics of the closed-form model. peerReviewed
A innovative laterals hydro floating tilting systems for USV or surface nautical vehicles
2015
The proposed project shows the results obtained in the implementation and testing in lacustrine and marine environment of an innovative laterals hydro floating tilting systems control for USV or remote/autonomous surface nautical vehicles. This vehicle is based on a pending patent belonging to Palermo University (Patent Pending RM2012A000209 and RM2012A000209). The system allows, during operation as a vehicle USV, set changes sailing trim and make turns with very narrow angle with little shunting movements. In fact the main benefits obtained were able to change or adjust the navigation structure by changing the tilt of one or two hydro floating during navigation without intervening directly…
A COST BENEFIT ANALISYS FOR HYDROPOWER PRODUCTION IN WATER DISTRIBUTION NETWORKS BY PUMP AS TURBINE (PAT)
2013
The use of micro hydroelectric plant in urban pipe networks, based on the combination of a PAT, two regulating valves and two pressure meters, is proposed along with simple automation rules. Its economic benefit is tested on a small pipe network, where the network geometry, as well as the demand coefficient variation in time and space have been inferred from previously collected data and existing analysis. A similar analysis has been also carried out for different scenarios, where the reduction of pipe installation cost due to a diameter reduction is compared with the increased benefit in energy production. The case study shows that a small increment of the pipe installation cost, with resp…