Search results for "500"
showing 10 items of 3244 documents
Techno-economic analysis of a local district heating plant under fuel flexibility and performance
2017
Brovst is a small district in Denmark. This paper analyses the use of local renewable resources in the district heating systems of Brovst. The present use of fossil fuels in the Brovst district heating plant (DHP) represents an increasing environmental and climate-related load. Therefore, an investigation has been made to reduce the use of fossil fuels for district heating system and make use of the local renewable resources (biogas, solar, and heat pump) for district heating purposes. In this article, the techno-economic assessment is achieved through the development of a suite of models that are combined to give cost and performance data for this district heating system. Local fuels have …
Hydraulic Dynamic Calculation and Simulation
2021
Hydraulic dynamics is emerging as a basic concept with applications and important implications for many industrial, civil, and environmental engineering problems [...]
Wind turbine modeling using the bond graph
2011
Author's version of a chapter in the book: Proceedings of the IEEE International Symposium on Computer-Aided Control System Design. Also available from the publisher at: http://dx.doi.org/10.1109/CACSD.2011.6044572 This paper addresses the problem of bond graph methodology as a graphical approach for modeling wind turbine systems. In this case, we consider the modeling of a wind turbine system with individual pitch control scheme and the interaction with tower motions. Two different bond graph models are presented, one complex and one simplified. Furthermore, the purpose of this paper is not to validate a specific wind turbine model, but rather show the difference between modeling with a cl…
A Semiactive Vibration Control Design for Suspension Systems with Mr Dampers
2011
Published version of a chapter published in the book: Vibration Analysis and Control - New Trends and Developments. Also available from the publisher at: http://www.intechopen.com/source/pdfs/17688/InTech-A_semiactive_vibration_control_design_for_suspension_systems_with_mr_dampers.pdf. OA
daptive Backstepping Control of Nonlinear Hydraulic-Mechanical System Including Valve Dynamics
2010
Published version of an article from the journal: Modeling Identification and Control. Also available from publisher: http://dx.doi.org/10.4173/mic.2010.1.3 The main contribution of the paper is the development of an adaptive backstepping controller for a nonlinear hydraulic-mechanical system considering valve dynamics. The paper also compares the performance of two variants of an adaptive backstepping tracking controller with a simple PI controller. The results show that the backstepping controller considering valve dynamics achieves significantly better tracking performance than the PI controller, while handling uncertain parameters related to internal leakage, friction, the orifice equat…
Human Resource Selection Approaches and Socially Responsible Strategy
2016
Abstract The research focuses on the characterisation of theoretical aspects of human resource (HR) selection approaches and the analysis of these approaches within a socially responsible strategy and in the context of business sustainability creation. The main methods implemented are monographic research, scientific literature analysis, synthesis, and comparison. As a result, the HR selection concept development and application summary was created as well as the importance of HR selection within a socially responsible strategy was characterised.
The harp: a vehicle crash test apparatus for full-scale crash test experiments
2012
Published version of an article in the journal: The International Journal of Advanced Manufacturing Technology. Also available from the publisher at: http://dx.doi.org/10.1007/s00170-012-3960-3 The current paper describes an apparatus for full-scale vehicle crash test experimentation. This apparatus is referred to as the harp. In brief, the harp may either accelerate a trolley which is impacted into a test vehicle or the test vehicle itself may be accelerated and impacted into an object such as a barrier, a pole, or another vehicle. If a trolley is accelerated, it is equipped with load cells to record the axial crushing force. If a test vehicle is accelerated, it is equipped with a three-ax…
North American entrepreneurs in Cuba: which entry mode and government affiliation strategy?
2018
Purpose To have success in newly liberalized markets, firms must have a plan of action before resources are committed. What some companies do not realize is that their own entrepreneurial orientation (EO) will dictate their strategies, and performance outcomes, in both their home market and abroad. In order to maximize firm performance in newly liberalized markets (such as Cuba), firms must be able to objectively gauge their own EO. The paper aims to discuss these issues. Design/methodology/approach Within this framework, the present paper will attempt to effectively measure the EO of decision-making managers from US companies that have an interest in entering the Cuban market. A final sam…
Banks Digitalization - A Challenge for the Romanian Banking Sector
2019
Abstract The banking system has undergone several transformations since its beginning up to now, some as a result of adapting to customers’ requirements that have become increasingly sophisticated, and others as a result of the economic and political contexts that have passed, which again – have required its adaptation. Regardless of the situation, the banks have undergone a large digitization process, a process that is now in progress and which in the coming years can cause a significant change in the banking we knew about 10-15 years ago. Through this paper, I propose to analyse the situation of the banking system in terms of adapting to these challenges, at the level of Romania, in the c…
Credit Risk Versus Performance in the Romanian Banking System
2017
Abstract The Romanian banking sector, predominantly governed by the capital of foreign banks, is, as well as other international banking sectors, under the sign of the necessary balance that should exist between risk and performance. This is a result of banks trying to take risks that they can control, given that they need to generate financial results that are satisfactory for all categories of bank creditors, namely shareholders, depositors and other lenders. In this paper, I wanted to analyze the risk situation assumed by the main banks in the system versus the performance gained in recent years. This article is part of a wider research, so I will refer only to the main risk assumed by a…