Pages
- 1
- 2
- document
-
Matušovič, Marko (author)Optimizing SQL query execution through effective cost models is a critical challenge in database management systems (DBMS). This thesis introduces a modular benchmarking system for cost models, with a pluggable architecture for both cost models and execution engines, enabling comprehensive benchmarking across various scenarios. Accompanied by a...master thesis 2024
- document
-
Sykes, V. (author), Collu, M. (author), Coraddu, A. (author)The development and deployment of offshore wind farms in the last decade have seen a dramatic increase, now totalling 743 GW globally (Global Wind Energy Council, 2022). This rapid increase is expected to further continue now with the potential to explore deeper sites with the adoption of floating offshore platforms. Proof of this growth has...review 2023
- document
-
Mars, Laura (author)In this thesis, a simulation cost model is presented that can be used to assess the cost-effectiveness of a selection of PdM programs. The proposed model combines a discrete event simulation (DES) model with a cost model. It is specifically designed to analyse the PdM programs for the vacuum compressor pumps at Duyvis. All the PdM programs...master thesis 2021
- document
-
Blank, J.L.T. (author), Niaounakis, T.K. (author)Local governments may seek efficient public service delivery through scaling up production, and the quest for the optimal local government size has attracted extensive attention of scholars and policy makers. Indeed, if scale matters for local government efficiency, increasing size may be a key factor in achieving more value for money for...journal article 2021
- document
-
van Duijn, Jaap (author)To optimise mining in a safe, geotechnically controlled and economical most beneficial way in Mine 2 of the Stjernøy mine, a choice has been made to review the current mining method, sublevel open stoping, and a different mining method, vertical crater retreat. The Stjernøy mine is an open pit and underground mine for Nepheline Syenite and this...master thesis 2020
- document
-
Agricola, Ivo (author)Over the past years, construction activities in the Netherlands shifted from spacious greenfield developments to dense inner-city redevelopment projects. Approximately 50 per cent of the total turnover in construction is generated within the country’s large cities. It’s expected that this percentage will grow to 80 per cent in the near future(De...master thesis 2020
- document
-
Charisi, N.D. (author), Hopman, J.J. (author), Kana, A.A. (author), Papapanagiotou, Nikos (author), Muller, Thijs (author)This paper proposes a parametric modelling method based on Knowledge Based Engineering (KBE) for an LNG bunkering vessel (LNGBV). Parametric models aim to define the geometry and main systems configuration of the vessel starting from the principle that the vessel should be able to perform its mission successfully. The adoption of KBE in...conference paper 2020
- document
-
van Veldhuizen, B.N. (author), Hekkenberg, R.G. (author), Codiglia, Luca (author)Global endeavors to reduce emissions in the shipping industry are accelerating the interest in fuel cell system. This paper explores the application of different fuel cell types (LT-PEMFC, HT-PEMFC and SOFC) in combination with different fuels (LH2, LNG, MeOH and NH3) in expedition cruise ships. The goal of this paper is to evaluate the impact...conference paper 2020
- document
-
Boertz, C. (author), Hekkenberg, R.G. (author), van der Kolk, Richard (author)Fuel cell systems require a better early-stage prediction of the energy consumption of a ship because they are more expensive, more voluminous and less able to deal with rapid load changes than conventional diesel-powered systems. This paper discusses a model for such an improved prediction of the total energy demand of an expedition cruise...conference paper 2020
- document
-
de Geus-Moussault, S.R.A. (author), Pruyn, J.F.J. (author), van der Voort, Esther (author), van IJserloo, Geert (author)Most ship management companies base the operational cost calculation on scheduled maintenance jobs. Scheduled maintenance jobs do not take unforeseen maintenance into account. This under-estimates the operational budget. The estimation of the operational costs can be improved by including the unforeseen maintenance costs. The amount of...conference paper 2020
- document
-
Blank, J.L.T. (author), Enserink, B. (author), van Heezik, A.A.S. (author)In the last four decades, the Dutch drinking water industry has undergone two major policy reforms, namely the consolidation of the industry by stimulating mergers and the introduction of yardstick competition by applying benchmarks. This paper addresses the question of whether these two instruments have improved productivity. Productivity...journal article 2019
- document
-
Blank, J.L.T. (author), van Heezik, A.A.S. (author)The judiciary is constantly undergoing change in order to respond to a wide range of social developments that have brought the sector under increasing pressure. In order to deal with the constant call for enhancing budgets, different policy measures have been taken to downsize the appeal to the judiciary and to improve productivity. One of...journal article 2019
- document
-
Blank, J.L.T. (author), Niaounakis, T.K. (author)In many countries, the provision of primary education is among the core responsibilities of local governments. One of the main questions local governments face concerns the optimal configuration of school boards and size of schools. In this paper we analyse the relation between cost and scale in school boards and in schools. The influence of...journal article 2019
- document
-
Mainemer Lang, Michael (author)Since the 1960s, the semiconductor industry’s rate of progress has followed by what is commonly known as Moore’s law. In recent years, the traditional approach of downscaling the feature size and increasing the operating frequency of the devices to improve the performance is slowing down due to the reaching of physical limits. Different...master thesis 2018
- document
-
Elzinga, Louwrens (author)The main focus of this research is determining when dredging of reservoirs is feasible. First the main issues associated with the sedimentation of reservoirs are investigated. Most important are the loss of reservoir volume, sediment shortages downstream of the dam and possible blockage of water intakes.<br/>The sedimentation issues occur mostly...master thesis 2017
- document
-
Tuty Arsyida, Tuty (author)Trade costs for the international supply chain are enormous, even in the absence of formal border barriers. In fact, the costs involved in moving a container physically are less than half the costs of managing the information about the transport activity. Thus, the physical infrastructure in international trade is fairly efficient, but that is...master thesis 2017
- document
-
Urdu, M. (author)About 70-85% of commercial aircraft Life Cycle Cost (LCC) is determined during the design stage of the aircraft. Aircraft maintenance is a vital process within aircraft operation and it takes around 15% of LCC. The present day aviation market drives the airlines to reduce the maintenance cost as much as possible. The current maintenance cost...master thesis 2015
- document
-
Mavroeidis, N. (author)The electricity transmission system, lynchpin of the power system chain, has been recognized to play a significant role in fulfilling policy targets such as high integration levels of renewable energy sources, reduction of CO2 emissions, lower electricity costs and increased security of supply. In the European context, cross-border transmission...master thesis 2015
- document
-
Van der Beek, M.J.G. (author)Much research has been done on the advantages of Master Data Management (MDM) and the problems that poor MDM may cause. Much is also known about the importance of data quality. However little is known about quantifying and structuring the costs related to MDM. In this thesis the question ”How can the possible reduction of costs for organizations...master thesis 2013
- document
-
Polder, R.B. (author), Leegwater, G. (author), Worm, D. (author), Courage, W. (author)Corrosion of reinforcing steel in concrete structures causes concrete cracking, steel diameter reduction and eventually loss of safety. In infrastructure this is mainly due to penetration of chloride ions from de-icing or marine salts. Conventional repair means heavy, labour intensive and costly work and economic pressures (time and money) work...conference paper 2012
Pages
- 1
- 2