document

Cavitation: Experimental investigation of cavitation regimes in a coverging-diverging nozzle

Hogendoorn, W. (author)

master thesis 2017

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Tractable Reserve Scheduling Formulations for Alternating Current Power Grids with Uncertain Generation

ter Haar, O.A. (author)

The increasing penetration of wind power generation introduces uncertainty in the behaviour of electric power grids. This work is concerned with the problem of day-ahead reserve scheduling (RS) for power systems with high levels of wind power penetration, and proposes a novel set-up that incorporates an alternating current (AC) Optimal Power...

master thesis 2017

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Ship Grounding Damage: An Estimate through Acceleration Measurements

Haag, S.R. (author)

When the Costa Concordia ran aground in Italy, it took 69 minutes to make the critical decision to abandon ship. The crew was unaware of the sheer size of the damage and the impact on the ship’s stability for too long. Instantaneous insight into the structural damage of the ship after running aground may be of great aid in such disasters. A...

master thesis 2017

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Effect of sterilisation on antimicrobial silver coated titanium surfaces

Manjapra Varieth, D.S. (author)

The implant associated infections (IAI) have been identified as one of the primary causes of bone implant failures. A novel silver based antimicrobial surface produced on Ti6Al7Nb substrates by plasma electrolytic oxidation was developed to tackle IAI . The effect of steam, dry and Ultra Violet (photocatalytical) sterilisation on this novel...

master thesis 2017

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Intra-operative estimation of surgical progress

Van Luyn, F. (author)

Driven by rising health care costs due to factors including advancing technology and an aging population, cost-effectiveness has become an increasingly important aspect of care delivery, with the operating room (OR) being a specific area of interest. By means of a surgical process model (SPM), OR systems can gain an understanding of clinical...

master thesis 2017

document

Programming of shape-shifting with 3D printers

van Manen, T. (author)

Materials and devices with advanced functionalities often need to include functionalities such as surface features into complex 3D geometries. Precisely controlled bio-nanopatterns, printed electric components and sensors/actuators are all examples of such surface features. However, the vast majority of the refined technologies that are...

master thesis 2017

document

An intravascular stabilization method of the Excimer Laser Assisted Non-occlusive Anastomosis (ELANA) technique

Posthoorn, A.P.J. (author)

The Excimer Laser Assisted Non-Occlusive Anastomoses (ELANA) technique is used to create anastomoses between major arteries in the brain while avoiding the dangerous temporary occlusion of the cerebral blood ow. This decreases the risk of complica ons due to hypoxia of the brain, but the surgery is long and requires a highly skilled vascular...

master thesis 2017

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Methanation of Carbon Dioxide: Experimental research of separation enhanced methanation of CO2

Granitsiotis, G. (author)

The ever growing use of renewable sources of energy led to a need for energy storage. Mainly due to the intermittency nature of applications like solar and wind. In addition, the need for regulation of the greenhouse gases led to the development of carbon capture and storage applications. Thus, the combination of those two factors accelerated...

master thesis 2017

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Model of a Hip Fractured Lower Limb for Control of a two DOF Hip Fracture Reduction Robot

van den Hoorn, J.C. (author)

Due to the increase of elderly people, the number of hip fractures rises as well. The most common hip fracture is an intertrochanteric fracture. This fracture is treated by inserting an intramedullary nail to support the fractured femur fragments. Before the intramedullary nail can be inserted, the bone fragments need to be realigned by...

master thesis 2017

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Segmented Active Reward Learning

Olsthoorn, R.M. (author)

The use of robotic systems outside the branch of tasks currently common in industry requires the development of novel intelligent control methods. In this thesis we will aim to improve on a recent machine learning method known as active reward learning. This method is able to teach a robotic system a task using human expert ratings on...

master thesis 2017

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DynamicSimulation of Seabed Gouging by Icebergs

Marquart, R. (author)

master thesis 2017

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Perturbing stroke patients: Quantifying dynamic walking stability based on the response to perturbations in order to discriminate between healthy controls and stroke patients with and without falls

Siemelink, L.K. (author)

Abstract Pilot study Introduction: Falls are a primary cause of accidental deaths, serious injuries, dependency and society costs. The response to perturbations could identify how well persons are able to reject perturbations. The aim of the study was to compare four different medio-lateral swing perturbations in order to select the most...

master thesis 2017

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Puncturing chronic total occlusions using hydraulic pressure waves

Nicolai, T.E. (author)

master thesis 2017

document

Deep part load operation of combined cycles and combined heat and power plants

Persico, M. (author)

The world energy market has become very volatile due to the increase of renewable sources of power (solar and wind energy) and it asks more flexibility to fossil power stations. Gas turbines are of great importance for the generation of power both in combined cycles and in combined heat and power installations. If in the past gas turbines...

master thesis 2017

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Essential Tremor Suppression

de Lange, IJ.P. (author)

master thesis 2017

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Analysis of the set-down of structures onto the seabed: Interaction between structure, hydrodynamic force and soil

Vogelzang, J. (author)

master thesis 2017

document

Numerical Solutions to Principal-Agent Problems

Dang, T.N. (author)

A principal-agent problem is a mathematical framework for modelling contractual relationships, where a principal delegates tasks to an agent in exchange for reward. Many real life contracts are of this type. The agent does not have the same objectives as the principal and he possesses hidden information. Two types of hidden information is...

master thesis 2017

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Dynamic reverse Stackelberg games in infrastructure maintenance contract design

Wiesman, R. (author)

Infrastructure managers outsource maintenance activities to maintenance service contractors. This gives rise to misalignment between a contractor's short-term objectives and an infrastructure manager's long-term objectives. Infrastructure managers have started to explore various forms of contracts in which they incentivize contractors to work in...

master thesis 2017

document

Design, Development and Testing of a Navigator to Guide Minimally Invasive Osteotomy Surgery

Heslinga, M.A. (author)

Corrective osteotomy is the treatment for malunion of bone segments, which is required after insufficient fracture management. To perform this procedure adequately, 3D imaging is used to make a virtual plan of the osteotomy. In order to transfer this virtual plan to the patient in the operating room, a navigation method is required. Existing...

master thesis 2017

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Multi-Sensor Human Detection on an Intelligent Security Robot

Kathmann, Y. (author)

This thesis aims to combine visual data and distance measurements from a Laser Range Finder (LRF) to recognise the presence of humans. The data from the LRF is used to find regions of interest in order to reduce the load on the visual data analysis. Deep learning convolutional neural networks have shown incredible results on visual recognition...

master thesis 2017