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Atmospheric pressure plasma surface modification of titanium for high temperature adhesive bonding

Akram, M. (author), Jansen, K.M.B. (author), Ernst, L.J. (author), Bhowmik, S. (author)

In this investigation surface treatment of titanium is carried out by plasma ion implantation under atmospheric pressure plasma in order to increase the adhesive bond strength. Prior to the plasma treatment, titanium surfaces were mechanically treated by sand blasting. It is observed that the contact angle of de-ionized water decreases with the...

journal article 2011

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Surface modification of polyimide by atmospheric pressure plasma for adhesive bonding with titanium and its application to aviation and space

Akram, M. (author), Bhowmik, S. (author), Jansen, K.M.B. (author), Ernst, L.J. (author)

It is noted that in search of long term and efficient service performance in the context of future generation of aerospace materials, there is increasing need of metal-high performance polymer composite. Based on these considerations, high temperature resistant polymeric sheet such as Polyimide Meldin7001 sheet, is joined with Titanium sheet by...

conference paper 2011

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Effect of chain flexibility in the network structure on the viscoelasticity of epoxy thermosets

Nakka, J.S. (author), Jansen, K.M.B. (author), Ernst, L.J. (author)

In this paper a detailed study in investigating the effect of the chain flexibility in epoxy-amine crosslinked network is done. In order to introduce flexibility into the crosslinked network a homologous series of four aliphatic diamine curing agents varying only in the chain length and having a constant functionality (f?=?4) is taken and cured...

journal article 2011

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Improving the ship design process by applying a scripted CAD system

Jansen, R.B.R. (author)

master thesis 2011

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Force measurement platform for training and assessment of laparoscopic skills

Horeman, T. (author), Rodrigues, S.P. (author), Jansen, F.W. (author), Dankelman, J. (author), Van den Dobbelsteen, J.J. (author)

Background - To improve endoscopic surgical skills, an increasing number of surgical residents practice on box or virtual-reality (VR) trainers. Current training is mainly focused on hand–eye coordination. Training methods that focus on applying the right amount of force are not yet available. Methods - The aim of this project is to develop a...

journal article 2010

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Surface Modification of Titanium by Atmospheric Pressure Plasma Treatment for Adhesive Bonding and Its Application to Aviation and Space

Akram, M. (author), Bhowmik, S. (author), Jansen, K. (author), Ernst, L.J. (author)

Titanium is one of the most effective materials for structural application of space craft and aviation. Titanium alloys are widely used in solid rocket booster cases, guidance control pressure vessel and other different applications demanding light weight and reliability. Aerospace industry is also a larger market for titanium products and...

conference paper 2010

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Brake-by-steer Concept

Jansen, B. (author)

master thesis 2010

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Hierarchical Economic Optimization of Oil Production from Petroleum Reservoirs

Van Essen, G.M. (author), Van den Hof, P.M.J. (author), Jansen, J.D. (author)

In oil production waterflooding is a popular recovery technology, which involves the injection of water into an oil reservoir. Studies on model-based dynamic optimization of waterflooding strategies have demonstrated that there is a signifcant potential to increase life-cycle performance, measured in Net Present Value. However, in these studies...

conference paper 2010

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An Isolator System for minimally invasive surgery: The new design

Horeman, T. (author), Jansen, F.W. (author), Dankelman, J. (author)

Background - The risk of obtaining a postsurgical infection depends highly on the air quality surrounding the exposed tissue, surgical instruments, and materials. Many isolators for open surgery have been invented to create a contained sterile volume around the exposed tissue. With the use of an isolator, a surgical procedure can be performed...

journal article 2010

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Objective classification of residents based on their psychomotor laparoscopic skills

Chmarra, M.K. (author), Klein, S. (author), De Winter, J.C.F. (author), Jansen, F.W. (author), Dankelman, J. (author)

Background - From the clinical point of view, it is important to recognize residents’ level of expertise with regard to basic psychomotor skills. For that reason, surgeons and surgical organizations (e.g., Acreditation Council for Graduate Medical Education, ACGME) are calling for assessment tools that credential residents as technically...

journal article 2009

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Model-Based Control and Optimization of Large Scale Physical Systems - Challenges in Reservoir Engineering

Van den Hof, P.M.J. (author), Jansen, J.D. (author), Van Essen, G.M. (author), Bosgra, O.H. (author)

Due to urgent needs to increase efficiency in oil recovery from subsurface reservoirs new technology is developed that allows more detailed sensing and actuation of multiphase flow properties in oil reservoirs. One of the examples is the controlled injection of water through injection wells with the purpose to displace the oil in an appropriate...

conference paper 2009

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Operational profile harbor tugs Rotterdam - The road towqards a generic operational profile

Jansen, B.J. (author)

master thesis 2009

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Force feedback and basic laparoscopic skills

Chmarra, M.K. (author), Dankelman, J. (author), Van den Dobbelsteen, J.J. (author), Jansen, F.W. (author)

Background - Not much is known about the exact role offorce feedback in laparoscopy. This study aimed to determine whether force feedback influences movements of instruments during training in laparoscopic tasks and whether force feedback is required for training in basic laparoscopic force application tasks. Methods - A group of 19 gynecologic...

journal article 2008

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Non-conventional concretewind turbine towers

Jansen, J.L. (author)

master thesis 2008

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Retracting and seeking movements during laparoscopic goal-oriented movements. Is the shortest path length optimal?

Chmarra, M.K. (author), Jansen, F.W. (author), Grimbergen, C.A. (author), Dankelman, J. (author)

Aims- Minimally invasive surgery (MIS) requires a high degree of eye–hand coordination from the surgeon. To facilitate the learning process, objective assessment systems based on analysis of the instruments’ motion are being developed. To investigate the influence of performance on motion characteristics, we examined goaloriented movements in a...

journal article 2007

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Kinetic Characterisation of Molding Compounds

Jansen, K.M.B. (author), Qian, C. (author), Ernst, L.J. (author), Bohm, C. (author), Kessler, A. (author), Preu, H. (author), Stecher, M. (author)

conference paper 2007

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The influence of experience and camera holding on laparoscopic instrument movements measured with the TrEndo tracking system

Chmarra, M.K. (author), Kolkman, W. (author), Jansen, F.W. (author), Grimbergen, C.A. (author), Dankelman, J. (author)

journal article 2007

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Use of POD in control of flow through porous media

Van Doren, J. (author), Markovinovic, R. (author), Jansen, J.D. (author)

During the design of development concepts for the exploitation of oil and gas reservoirs, frequent use is made of numerical simulation of the flow of multi-phase fluids through porous rock. Recently, increased attention has been paid to systematic optimization of well positions and operating parameters (rates, pressures) over the life of the...

conference paper 2006

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Exploring the future of Dante: The network analysis tool for TNT Express (summary)

Jansen, E.B.P. (author)

master thesis 2006

document

A short history of Container Transport

Jansen, E.B.P. (author)

report 2006