Searched for: subject%3A%22Mechanics%252C%255C%2BMaterials%255C%2Band%255C%2BStructures%22
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Weiss, M. (author), Bucco, D. (author)
A framework is introduced to develop the theory of the adjoint method for models including both continuous and discrete dynamics. The basis of this framework consists of the class of impulsive linear dynamic systems. It allows extension of the adjoint method to more general models that include multirate subsystems or nonperiodic discrete events....
article 2015
document
Nie, C. (author), Frijns, A.J.H. (author), Mandamparambil, R. (author), den Toonder, J.M.J. (author)
In this paper we introduce a microfluidic device ultimately to be applied as a wearable sweat sensor. We show proof-of-principle of the microfluidic functions of the device, namely fluid collection and continuous fluid flow pumping. A filter-paper based layer, that eventually will form the interface between the device and the skin, is used to...
article 2015
document
van der Voort, M.M. (author), van Wees, R.M.M. (author), Brouwer, S.D. (author), van der Jagt-Deutekom, M.J. (author), Verreault, J. (author)
Forensic analysis of explosions consists of determining the point of origin, the explosive substance involved, and the charge mass. Within the EU fP7 project Hyperion, TNO developed the Inverse Explosion Analysis (TNO-IEA) tool to estïmate the charge mass and point of origin based on observed damage around an explosion. In this paper inverse...
article 2015
document
van Willigen, W.H. (author), Kester, L.J.H.M. (author), van Nunen, E. (author), Haasdijk, E. (author)
This article proposes a safety check extension to Adaptive Cruise Control systems where the critical headway time is estimated in real-time. This critical headway time estimate enables automated reaction to crisis circumstances such as when a preceding vehicle performs an emergency brake. We introduce a method for critical headway approximation...
article 2015
document
Reuvers, N.J.W. (author), Huinink, H.P. (author), Adan, O.C.G. (author)
The water sorption mechanism in thin nylon 6 films is studied by 1H NMR imaging and relaxometry. Experiments using D2O and H2O enable identification of polymer and water signal components during the uptake process. Tracking the mobility and size of polymer and water components gives new insights into the water sorption mechanism of nylon 6. 1H...
article 2015
document
Patil, B.R. (author), Shanmugam, S. (author), Teunissen, J.P. (author), Galagan, Y. (author)
All-solution processed organic solar cells with inverted device architecture were demonstrated. Devices contain opaque bottom electrodes and semitransparent top electrodes, resulting in top illuminated devices. Nanoparticles-based Ag ink was used for inkjet printing both top and bottom electrodes. Semi-transparent top electrode consists of high...
article 2015
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Oostra, A.J. (author), Blom, P.W.M. (author), Michels, J.J. (author)
Defects occurring during printing of the photoactive layer in organic solar cells lead to short-circuits due to direct contact between the PEDOT:PSS anode and metallic cathode. We provide a highly effective repair method where the defected zone with bare PEDOT:PSS is treated with aqueous sodium hypochlorite to locally disrupt the conductivity of...
article 2015
document
Korkin, A. (author), Mueller, P. (author), Roozeboom, F. (author)
article 2015
document
Verreault, J. (author)
The PELE ammunition is characterized by a low-density filling material surrounded by a high-density brittle jacket material. An analytical model describing the fragmentation of this ammunition behind a target plate is presented. This model assumes uniaxial strain in the filling and uses the RankingeHugoniot relations to calculate the material...
article 2015
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Lamont, C.A. (author), Eggenhuisen, T.M. (author), Coenen, M.J.J. (author), Slaats, T.W.L. (author), Andriessen, R. (author), Groen, P. (author)
For the solution processing of organic photovoltaics on an industrial scale, the exclusion of halogenated solvents is a necessity. However, the limited solubility of most semiconducting polymer/fullerene blends in non-halogenated solvents results in ink formulations with low viscosities which poses limitations to the use of roll-to-roll...
article 2015
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Carton, E.P. (author), Roebroeks, G.H.J.J. (author), Weerheijm, J. (author), Diederen, A.M. (author), Kwint, M.E. (author)
Several specially designed experimental techniques including an alternative test method have been developed for the evaluation of ceramic based armor. Armor grade ceramics and a range of combined materials have been tested using 7.62 AP rounds. Using the energy method [12] the dwell-time and total energy absorbed from the AP core were determined...
conference paper 2015
document
van Dort, M. (author), van den Brand, J. (author)
other 2015
document
Zhang, S. (author), Rodriguez Urribarri, A. (author), Morales Hurtado, M. (author), Zeng, X. (author), van der Heide, E. (author)
To control tactile friction, that is the friction between fingertip and counter-body, the role of surface texture is required to be unveiled and defined. In this research, an experimental approach is used based on measuring tactile friction for directional texture (grooved channel) with varying depths. For a reference surface, in this current...
article 2015
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Arutinov, G. (author), Mastrangeli, M. (author), Smits, E.C.P. (author), Heck, G.V. (author), Schoo, H.F.M. (author), den Toonder, J.J.M. (author), Dietzel, A.H. (author)
This paper describes the dynamics of capillary self-alignment of components with initial shift offsets from matching receptor sites. The analysis of the full uniaxial self-alignment dynamics of foil-based mesoscopic dies from pre-alignment to final settling evidenced three distinct, sequential regimes impacting the process performance. The...
conference paper 2014
document
Hof, T. (author), Stuiver, A. (author), Ivens, T.W.T. (author), Bax, L.N.J. (author), de Penning, H.L.H. (author), Hoedemaeker, D.M. (author)
report 2014
document
Wünscher, S. (author), Abbel, R. (author), Perelaer, J. (author), Schubert, U.S. (author)
Well-defined high resolution structures with excellent electrical conductivities are key components of almost every electronic device. Producing these by printing metal based conductive inks on polymer foils represents an important step forward towards the manufacturing of plastic electronic products on an industrial scale. The development of...
article 2014
document
Theelen, M.J. (author), Barreau, N. (author), Daume, F. (author), Steijvers, H.L.A.H. (author), Hans, V.O. (author), Liakopoulou, A. (author), Vroon, Z.A.E.P. (author), Zeman, M. (author)
An hybrid degradation setup, in which humidity, temperature and illumination are used in order to accelerate degradation of CIGS, has been developed. This setup consists of a climate chamber, which can vary the temperature and humidity. Furthermore, an area of 80x80 cm2 is illuminated, which allows both the study of light induced behvaior and...
conference paper 2014
document
Beusink, M. (author), Valega Mackenzie, F.O. (author), Coenen, E.W.C. (author)
At present several material combinations are fabricated to cover the demands of ubiquitous applications. In the case of meta materials, properties are greatly affected not only by composition and shape, but also by interfacial strength and directionality of the patterned substructure. In this work a bottom-up approach is chosen to characterize...
conference paper 2014
document
Wang, H. (author), Cobb, B. (author), van Breemen, A. (author), Gelinck, G.H. (author), Bao, Z. (author)
Carbon-nanotube top-gate transistors with fluorinated dielectrics are presented. With PTrFE as the dielectric, the devices have absent or small hysteresis at different sweep rates and excellent bias-stress stability under ambient conditions. Ambipolar single-walled carbon nanotube (SWNT) transistors are observed when P(VDF-TrFE-CTFE) is utilized...
article 2014
document
Bos, A. (author), Henselmans, R. (author), Rosielle, P.C.J.N. (author), Steinbuch, M. (author), te Voert, M.J.A. (author)
The baseline design of the European Extremely Large Telescope features a telescope with a 39-meter-class primary mirror (M1), consisting of 798 hexagonal segments. A measurement machine design is presented based on a non-contact single-point scanning technique, capable of measuring the form error of each segment with nanometer uncertainty, fast,...
conference paper 2014
Searched for: subject%3A%22Mechanics%252C%255C%2BMaterials%255C%2Band%255C%2BStructures%22
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