Searched for:
(21 - 40 of 269)

Pages

document
Perdeck, Matthias (author)
In interplanetary space missions, it is convenient to have a second departure opportunity in case the first is missed. Two distinct approaches to minimizing the maximum of the two Delta-V budgets of such a trajectory pair, are developed. The first (‘a priori’) approach optimizes the variables of both trajectories at once. The second (‘a...
master thesis 2018
document
Gunes, Bilal (author)
doctoral thesis 2018
document
Abdullah, A.D.A. (author), Castro Gama, M.E. (author), Popescu, Ioana (author), van der Zaag, P. (author), Karim, Usama F.A. (author), Al Suhail, Qusay (author)
Wastewater effluents from irrigation and the domestic and industrial sectors have serious impacts in deteriorating water quality in many rivers, particularly in areas under tidal influence. There is a need to develop an approach that considers the impact of human and natural causes of salinization. This study uses a multi-objective...
journal article 2018
document
Sfikas, Ilias (author)
Raising environmental concerns have stimulated the development of renewable energy, including energy from the oceans, which contain a huge potential. In this thesis, particular emphasis is given to wave energy, which can deliver up to 2 TW on a global scale. The aim of this thesis is to optimize the control system of the Symphony Wave Power...
master thesis 2018
document
van Gemert, J.H.F. (author), Brink, Wyger M. (author), Webb, A. (author), Remis, R.F. (author)
Inhomogeneities in the transmit radio frequency magnetic field ( {\text{B}}-{1}^{+} ) reduce the quality of magnetic resonance (MR) images. This quality can be improved by using high-permittivity pads that tailor the {\text{B}}-{1}^{+} fields. The design of an optimal pad is application-specific and not straightforward and would therefore...
journal article 2018
document
Mahmood, Hamayoun (author), Ramzan, Naveed (author), Shakeel, A. (author), Moniruzzaman, Muhammad (author), Iqbal, Tanveer (author), Kazmi, Mohsin Ali (author), Sulaiman, Muhammad (author)
A primitive element for the development of sustainable pyrolysis processes is the study of thermal degradation kinetics of lignocellulosic waste materials for optimal energy conversion. The study presented here was conducted to predict and compare the optimal kinetic parameters for pyrolysis of various lignocellulosic biomass such as wood...
journal article 2018
document
de Bruijn, Dirk (author)
European shipyards are building increasing amounts of complex ships such as off-shore, dredging or naval ships that are engineered-to-order. The block division is made when only preliminary hull structural design, functional compartments and the location of major equipment are known. The existing production scheduling optimization algorithms use...
master thesis 2017
document
Vigney Kumar, Vigney (author)
Offshore Wind Farm (OWF) installation procedure is a complicated phase requiring excellent management of resources for timely completion of tasks. The wind farm installation period involves crucial stages like streamlining onshore logistics, transportation of components on vessels, installation of foundations, wind turbines, and cable laying,...
master thesis 2017
document
Brussee, Anneroos (author), van der Doef, Laura (author), Jansen, Lise (author), Oostrum, Natasja (author)
The Addicks and Barker Reservoirs, built in the forties, are located in Houston and collect precipitation and run-off from upstream areas to reduce flood risks along Buffalo Bayou to protect downtown Houston. During Hurricane Harvey (August 25 - August 30, 2017), the precipitation reached a new record of 910 mm [36.2 inches] in a 4 day period in...
student report 2017
document
van Beurden, Merlijn (author)
In my thesis, I have done research into the optimization of stopping patterns and frequencies of public transport services within a network. I have developed a model that takes both passenger and operator costs into account. The model has been run for a small fictional network and for the metro and train network of Amsterdam, to explore how the...
master thesis 2017
document
Spillenaar Bilgen, Jesper (author)
The main goal of any launch vehicle is to bring as much payload to space as possible. Space planes have been studied for decades, as they are thought to be more cost effective for frequent access to space than traditional expendable launchers. This research aims at optimizing the payload capacity of a single stage to orbit (SSTO) horizontal take...
master thesis 2017
document
van der Planken, Jonathan (author)
In this research the role of thick flexible soles in energy-efficient humanoid walking is analyzed. It is
hypothesized that, the addition of underactuated degrees of freedom under the foot gives the robot
the potential to execute a pseudo-passive walking motion 1, which yields a decrease in ankle torque
and energy expenditure....
master thesis 2017
document
Jonkman, Jake (author)
Recently, the effects of quantization on the Primal-Dual Method of Multipliers were studied.
In this thesis, we have used this method as an example to further investigate the effects of quantization on distributed optimization schemes in a much broader sense. Using monotone operator theory, the effect of quantization on all distributed...
master thesis 2017
document
Wang, Weijun (author)
The finite-element method can easily handle complicated geometries because of the application of unstructured meshes. Unlike the Cartesian grid used in the finite-difference method, the unstructured mesh can follow the sharp interfaces that separate two layers of different properties. Therefore, the finite-element method can provide more...
master thesis 2017
document
Broxterman, Stefan (author)
Topology optimization is a strong approach for generating optimal designs which cannot be obtained using conventional optimization methods. Improving structural characteristics by changing the internal topology of a design domain has been fascinating scientists and engineers for years. Topology optimization can be described as a distribution of...
master thesis 2017
document
Tang, H. (author), Ye, Huai-Yu (author), Chen, Xian Ping (author), Qian, Cheng (author), Fan, Xuejun (author), Zhang, G.Q. (author)
In this paper, the heat transfer performance of the multi-chip (MC) LED module is investigated numerically by using a general analytical solution. The configuration of the module is optimized with genetic algorithm (GA) combined with a response surface methodology. The space between chips, the thickness of the metal core printed circuit board...
journal article 2017
document
Vooijs, Irene (author)
Dit project behandelt de programmering en toepassing van een taxiservice, waarbij de passagiers zich vanaf of naar het treinstation willen verplaatsen. Met behulp van geheeltallig lineair programmeren wordt bepaald welke ritten door de taxi's moeten worden gereden, om de winst te maximaliseren. Dit model is gebaseerd op het model wat beschreven...
bachelor thesis 2017
document
Wang, Q. (author)
Inspired by insect flights, flapping wing micro air vehicles (FWMAVs) keep attracting attention from the scientific community. One of the design objectives is to reproduce the high power efficiency of insect flight. However, there is no clear answer yet to the question of how to design flapping wings and their kinematics for power-efficient...
doctoral thesis 2017
document
Földes, Gergely István (author)
Airports are highly complex systems that can generate economic growth
on their own. Accordingly, airports should take proactive actions to
create a status quo between the stakeholders(the airport itself,
airlines, passengers) in the tactical planning of the aircraft stand
allocation. Namely, the harmonization between the...
master thesis 2017
document
Verhoef, Nick (author)
The structures which HMC installs offshore are fabricated onshore and subsequently moved onto a barge or ship, seafastened and then transported to the offshore location. The process of moving a structure from the onshore quayside to the barge or ship is called the load-out. This load-out can be performed by lifting, skidding or using a trailer ...
master thesis 2017
Searched for:
(21 - 40 of 269)

Pages