Search results for "offshore"
showing 10 items of 110 documents
Design optimisation of a funnel-shaped floating dock for installation of offshore wind turbines
2020
Master's thesis in Civil and structural engineering (BYG508) Offshore wind power is a rapidly growing renewable energy industry and has a tremendous potentialof further expansion. Installation of offshore wind turbines is a challenging task. Floating windturbines are believed to be cost-effective solutions for deep water installation. This technologyis extremely sensitive to wave excitation during the installation process. As deep-water windfarms often are located in areas exposed to rough weather, innovative methods of installation areinvestigated. The floating dock concept has been proposed in recent studies in order to expand theweather window for installing spar floating wind turbines. …
Design and Analysis of a Novel Semi-submersible Floater Supporting a 5MW Wind Turbine
2021
Master's thesis in Civil and structural engineering (BYG508) The wind industry has been rapidly evolving in recent years, moving from onshore to offshorelocations. For deep waters, floating wind turbines are more cost-effective than bottom-fixed ones,and semi-submersible floating wind turbines are especially advantageous compared to other con-cepts because of their relatively small draft and good towability for installation. This masterthesis focuses on preliminary design and analysis of a novel semi-submersible floating wind turbinesupported by a twin fish floater and positioned by a single-point mooring system. Hydrostaticand hydrodynamic analysis are first carried out to select a floater…
Dual compensation control-system for offshore logistic equipment
2012
In offshore applications and moreover in transports from ship-to-ship, the needs of highly sophisticated motion compensation solution are increasing. They consist of sensors, actuators and control units. To design the best mechatronic solution, it is necessary modeling the mechanical system in order to identify the transfer function and the dynamic behaviour of the system. Currently Active Heave Compensation system are widely used in order to compensate for heave vessel motion. between a vessel moving under sea state and a fixed base or viceversa. Several research project are ongoing in order to develop solution able to compensate undesired movements also in ship to ship offloading operatio…
The influence of business groups on board composition in offshore financial multinational enterprises
2023
Based on resource dependence theory we argue for an influence of business groups (BGs) on the board composition of constituent offshore financial multinational enterprises (FMNEs). Using a unique sample of 171 Caribbean FMNEs in an inter-island BG setting, we find BGs’ control in constituent firms to be indicative of the importance of the internal financing and intermediation within the group network. This control leads to a higher proportion of lawyers hired to the boards of directors in BG-constituent firms and supports the argument that lawyers provide skills in complex offshore regulatory frameworks that facilitate BGs’ optimal tax management. Furthermore, we observe that an increased a…
Vietnam as an emerging destination for offshore outsourcing of software development for finnish companies: A conceptual perspective
2009
Companies are constantly under pressure to produce software products more efficiently and within tight budgets. Offshore outsourcing has been seen as one solution to the dilemma, and lucrative outsourcing businesses have evolved in many countries, such as India, China and Russia. Vietnam is now emerging within this global outsourcing sector. This study investigates Vietnam as an offshore outsourcing destination for Finnish companies for developing their software products and related services. The research was undertaken by reviewing the literature of a) offshore outsourcing, b) offshore software production, c) information technology industry in developing countries, especially in Vietnam an…
Workshop on Global Outsourcing of Software Development
2010
Global outsourcing is a pertinent issue in today’s business world. Increasingly, software and non-software organizations from private and public sectors are attempting to develop some or all of their software through global outsourcing in order to enhance innovation, reduce development time and cost, improve quality and productivity, adapt to changing global economic and market conditions, to name a few. Global outsourcing is composed of near shore outsourcing (the software development work is done by the service provider in a nearby country) and offshore outsourcing (the development work is done in a very far away country). Global outsourcing is gaining significant importance, as it can pr…
Discrete-time static output-feedback H<inf>&#x221E;</inf> controller design for vehicle suspensions
2014
This paper provides a direct and practical presentation of a novel methodology for static output-feedback controller design. The proposed design strategy has been successfully applied in the fields of control systems for seismic protection of large buildings and multi-building structures, control of offshore wind turbines, and active control of vehicle suspensions. The positive results obtained in these initial applications clearly indicate that this approach could be an effective tool in a large variety of control problems, for which an LMI formulation of the statefeedback version of the problem is available. The main objective of the paper is to facilitate a brief and friendly presentatio…
A synthesis of feasible control methods for floating offshore wind turbine system dynamics
2021
Abstract During the past decade, the development of offshore wind energy has transitioned from near shore with shallow water to offshore middle-depth water regions. Consequently, the energy conversion technology has shifted from bottom-fixed wind turbines to floating offshore wind turbines. Floating offshore wind turbines are considered more suitable, but their cost is still very high. One of the main reasons for this is that the system dynamics control method is not well-adapted, thereby affecting the performance and reliability of the wind turbine system. The additional motion of the platform tends to compromise the system’s performance in terms of power maximization, power regulation, an…
Fine slicing of the value chain and offshoring of essential activities: empirical evidence from European multinationals
2014
The offshoring of more advanced activities is increasing and a debate about the limits of offshoring has emerged. Companies are fine-slicing their value chains, and moving beyond the offshoring of peripheral and non-core activities to the offshoring of advanced and essential activities that are closer to their core (e.g. research, design and product development). The challenge is to understand the limits of offshoring and the most appropriate modes of offshoring. The purpose of this paper is to analyze what activities are offshorable and how best to govern offshored activities. We argue that companies are redefining their core activities and in this process, some essential activities previo…
Prevention of Offshore Pollution in the Mediterranean Sea Area
1998
Los Estados ribereños del Mediterráneo y la Comunidad Europea han adoptado diversos instrumentos políticos y jurídicos para la protección de la zona del Mar Mediterráneo contra la contaminación. De este modo, han creado un sistema ambiental regional que ha inspirado a otros acuerdos regionales a lo largo de todo el mundo bajo los auspicios del Programa de las Naciones Unidas para el Medio Ambiente. En este trabajo, estudio todas las medidas jurídicas y políticas adoptadas a nivel regional para prevenir, luchar, combatir y en la medida del máximo posible eliminar la contaminación de la zona del Mar Mediterráneo resultante de la explotación y explotación de la plataforma continental y del lec…