Searched for: subject%3A%22composition%22
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Reijmer, J.J.G. (author), Palmieri, P. (author), Groen, R. (author)
compositional variation of Pleistocene carbonate gravity deposits from the Exuma Sound Basin, Bahamas, was determined. Two types of gravity deposit were present in the cores of ODP Leg 101, Site 632A, i.e., calciturbidites and calcidebrites. In analogy with earlier studies, the compositional variations in the calciturbidites could be linked to...
journal article 2012
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Jongejans, E. (author)
Recently several studies have been performed at the TUDelft on the use of the generalized finite element method (GFEM) to model fiber reinforced composite materials in a two dimensional space. The GFEM model allows a large number of arbitrarily placed fibers to be taken into account. The fibers are placed on top of the ordinary mesh and...
master thesis 2012
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Boogaerdt, N.M. (author)
Geological data is often compositional (i.e. positive and sum to unity). The constrained nature of compositional data can lead to severe problems during data analysis. Transforming from the simplex to centered log-ratio (CLR) space can solve these problems, converting constrained non-linear processes into unconstrained linear processes ...
master thesis 2012
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Koerselman, J.R. (author)
A design methodology for composite space enclosures was generated. As a result a panel of an electronics housing structure, as part of a general satellite traversing both GEO and LEO, was designed and optimized. A mass saving of 18% was achieved over a conventional aluminum panel, while assuring structural integrity for acceleration loads,...
master thesis 2012
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Van den Ende, D.A. (author)
The piezoelectric effect, which causes a material to generate a voltage when it deforms, is very suitable for making integrated sensors, and (micro-) generators. However, conventional piezoelectric materials are either brittle ceramics or certain polymers with a low thermal stability, which limits their practical application to certain specific...
doctoral thesis 2012
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Papanastasis, P. (author)
This thesis is a scouting on the possibilities of combining P.C.M.s and G.F.R.P.s into one transparent element, which could upgrade the aesthetical values of a non-transparent P.C.M.-G.F.R.P. system. The contribution of this research is twofold, providing: 1) An analysis framework for further exploration on the combination of a P.C.M. and a G.F...
master thesis 2012
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Bristogianni, T. (author)
Subject of this thesis is the development of a lightweight, low-cost and eco-friendly composite structural module, out of a self reinforced Polypropylene (srPP) skin and a core of Polyethylene Terephthalate (PET) bottles. The module can be easily mass-produced, transported, assembled and disassembled, and able to be fully recycled after the end...
master thesis 2012
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Van den Ende, D.A. (author), Van Kempen, S.E. (author), Wu, X. (author), Groen, W.A. (author), Randall, C.A. (author), Van der Zwaag, S. (author)
Piezoelectric composites were prepared by dielectrophoretic alignment of high aspect ratio piezoelectric particles in a thermosetting polymer matrix. A high level of alignment was achieved in the cured composite from a resin containing randomly oriented high aspect ratio particles. Upon application of an electric field during curing of the resin...
journal article 2012
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Manea, F. (author), Motoc, S. (author), Pop, A. (author), Remes, A. (author), Schoonman, J. (author)
The aim of this study is to prepare and characterize two types of silver-functionalized carbon nanofiber (CNF) composite electrodes, i.e., silver-decorated CNF-epoxy and silver-modified natural zeolite-CNF-epoxy composite electrodes suitable for ibuprofen detection in aqueous solution. Ag carbon nanotube composite electrode exhibited the best...
journal article 2012
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Pieters, W. (author), Banescu, S.E. (author), Posea, S. (author)
We know that several chemicals can be combined to form explosives. Therefore, we do not want these to end up in airplanes together. Similarly, in the architecture of complex systems, it is often possible to combine the results of several system services to acquire illegitimate benefits or disrupt operation. For example, in what is called...
conference paper 2012
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Kim, D.S. (author), Kim, M.K. (author), Kim, S.H. (author), Choo, Y.W. (author)
The investigation on the seismic behavior of dams becomes crucial but is limited due to lack of experimental or field data. This paper aims to experimentally simulate the seismic behavior of three types of dams; earth-core rock-fill dam (ECRD), concrete-faced rock-fill dam (CFRD), and composite dam which combines concrete dam and CFRD. A series...
conference paper 2012
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Thuwis, G.A.A. (author)
doctoral thesis 2012
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Pop, A. (author), Manea, F. (author), Orha, C. (author), Motoc, S. (author), Llinoiu, E. (author), Vaszilcsin, N. (author), Schoonman, J. (author)
The aim of this study was to prepare three types of multiwall carbon nanotubes (CNT)-based composite electrodes and to modify their surface by copper electrodeposition for nonenzymatic oxidation and determination of glucose from aqueous solution. Copper-decorated multiwall carbon nanotubes composite electrode (Cu/CNT-epoxy) exhibited the highest...
journal article 2012
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Chen, X. (author), Liu, X. (author), Qian, Z. (author), Lei, Z. (author)
Reliable and durable asphalt surfacing systems still remain to be desired for the long-spanned orthotropic steel bridges as the nationally and internationally reports on distresses in deck pavement. Based on ten-year research works, this paper has presented a brief review and discussion of the Chinese practices and experiences of deck pavement...
conference paper 2012
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Remes, A. (author), Pop, A. (author), Manea, F. (author), Baciu, A. (author), Picken, S.J. (author), Schoonman, J. (author)
The aim of this study was the preparation, characterization, and application of a multi-wall carbon nanotubes-epoxy composite electrode (MWCNT-EP) with 25%, wt. MWCNTs loading for the voltammetric/amperometric determination of pentachlorophenol (PCP) in aqueous solutions. The structural and morphological aspects of the MWCNT-EP composite...
journal article 2012
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Taekema, J. (author), Karana, E. (author)
conference paper 2012
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Kassapoglou, C. (author)
The increased use of advanced composite materials on primary aircraft structure has brought back to the forefront the question of how such structures perform under repeated loading. In particular, when damage or other stress risers are present, tests have shown that the load to cause failure after a given number of cycles is a decreasing...
doctoral thesis 2012
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Han, B. (author), Yang, Z. (author), Shi, X. (author), Yu, X. (author)
This paper preliminarily investigates the general transport properties (i.e., water sorptivity, water permeability, and gas permeability) of carbon-nanotube/cement composites. Carboxyl multi-walled carbon nanotubes (MWNTs) are dispersed into cement mortar to fabricate the carbon nanotubes (CNTs) reinforced cement-based composites by applying...
journal article 2012
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Vermaas, P.E. (author)
In this paper, a proof is given that in design methods, the relation between technical functions and their subfunctions in functional descriptions of technical products cannot be analysed as a formal relation of parthood. This result holds for design methods in which transformations of flows of energy, material and signals are accepted as...
journal article 2012
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Mejia, J. (author), Valembois, V. (author), Piret, J.P. (author), Tichelaar, F. (author), Van Huis, M. (author), Masereel, B. (author), Toussaint, O. (author), Delhalle, J. (author), Mekhalif, Z. (author), Lucas, S. (author)
The evolution of the particle size distribution and the surface composition of silicon carbide and titanium carbide nanoparticle (NP) dispersions were studied. The pre-dispersions were prepared using two commonly used protocols for dispersion: stirring and sonication. Two dispersants were investigated (water and Pluronic F108 1 %) at two stages:...
journal article 2012
Searched for: subject%3A%22composition%22
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