Search Results - "Gotsis, A."

Free volume and mass transport in polymer nanocomposites by Choudalakis, G., Gotsis, A.D.

“…This review relates the free volume properties and the morphology to the mass transport coefficients of polymer nanocomposites. Direct, utilising the method of…”
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Permeability of polymer/clay nanocomposites: A review by Choudalakis, G., Gotsis, A.D.

“…This is a review of the existing studies on the permeability of gas molecules in nanocomposite materials that consist of inorganic platelet-shaped fillers in…”
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A Multi-Objective Approach to Subarrayed Linear Antenna Arrays Design Based on Memetic Differential Evolution by Goudos, S. K., Gotsis, K. A., Siakavara, K., Vafiadis, E. E., Sahalos, J. N.

“…In this paper we present a multi-objective optimization approach to subarrayed linear antenna arrays design. We define this problem as a bi-objective one. We…”
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Long chain branching on linear polypropylene by solid state reactions by Borsig, E., van Duin, M., Gotsis, A.D., Picchioni, F.

“…A method was developed for the long chain branching (LCB) of isotactic polypropylene (iPP) via modification in the solid state. PP long chains have been linked…”
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The effect of long chain branching on the processability of polypropylene in thermoforming by Gotsis, A. D., Zeevenhoven, B. L. F., Hogt, A. H.

“…Linear polypropylene was modified by reaction with peroxydicarbonates in a twin screw extruder to obtain varied degrees of long chain branching. The melt…”
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On the Direction of Arrival (DoA) Estimation for a Switched-Beam Antenna System Using Neural Networks by Gotsis, K.A., Siakavara, K., Sahalos, J.N.

“…A generic direction of arrival (DoA) estimation methodology is presented that is based on neural networks (NNs) and designed for a switched-beam system (SBS)…”
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Peroxydicarbonate modification of polypropylene and extensional flow properties by Lagendijk, R.P, Hogt, A.H, Buijtenhuijs, A, Gotsis, A.D

“…Long chain branches (LCB) were added to initially linear polypropylene (PP) using reactive extrusion in the presence of selected organic peroxydicarbonates…”
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Synthesis and Linear Viscoelasticity of Polystyrene Stars with a Polyketone Core by Polgar, L. M, Lentzakis, H, Collias, D, Snijkers, F, Lee, S, Chang, T, Sakellariou, G, Wever, D. A. Z, Toncelli, C, Broekhuis, A. A, Picchioni, F, Gotsis, A. D, Vlassopoulos, D

“…We report on a novel synthetic route to synthesize relatively large quantities of polystyrene (PS) star polymers with targeted arm functionality and molar mass…”
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The relation between rheological and mechanical properties of PA6 nano- and micro-composites by Vlasveld, D.P.N., de Jong, M., Bersee, H.E.N., Gotsis, A.D., Picken, S.J.

“…A series of nanocomposites was prepared with two different methods leading to different levels of exfoliation, and the dynamic properties were measured in the…”
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Distribution of oil in olefinic thermoplastic elastomer blends by Sengers, W.G.F., Wübbenhorst, M., Picken, S.J., Gotsis, A.D.

“…The distribution of processing oil in two olefinic thermoplastic elastomer (OTPE) blends was determined using dielectric spectroscopy. The OPTE blends are…”
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Microstructure and mechanical properties study of slip-cast copper–alumina composites by Stratigaki, M., Pabst, W., Nečina, V., Hajíček, M., Gotsis, A. D.

“…Alumina matrix composites reinforced with metallic copper were produced and their microstructure and mechanical properties were studied. The composites were…”
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Linear viscoelastic properties of olefinic thermoplastic elastomer blends: melt state properties by Sengers, W.G.F., Sengupta, P., Noordermeer, J.W.M., Picken, S.J., Gotsis, A.D.

“…The linear viscoelastic properties of two types of olefinic thermoplastic elastomer blends were studied using dynamic rheology. The first type consists of a…”
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The free volume in acrylic resin/laponite nanocomposite coatings by Choudalakis, G., Gotsis, A.D., Schut, H., Picken, S.J.

“…[Display omitted] The morphological features and the free volume properties of an acrylic resin/laponite nanocomposite are investigated using X-ray diffraction…”
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Short-term outcome and attainment of secondary prevention goals in patients with acute coronary syndrome—Results from the countrywide TARGET study by Andrikopoulos, G, Tzeis, S, Nikas, N, Richter, D, Pipilis, A, Gotsis, A, Tsaknakis, T, Kartalis, A, Kitsiou, A, Toli, K, Mantas, I, Olympios, C, Pras, A, Lampropoulos, S, Oikonomou, K, Pappas, C, Kranidis, A, Anastasiou-Nana, M, Triposkiadis, F, Goudevenos, I, Theodorakis, G, Vardas, P

“…Abstract Background/objectives Acute coronary syndromes (ACS) continue to pose a significant medical and socioeconomic burden worldwide. Optimal management…”
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Dielectric spectroscopy using dielectric probes: a new approach to study glass transition dynamics in immiscible apolar polymer blends by Sengers, W.G.F., van den Berg, O., Wübbenhorst, M., Gotsis, A.D., Picken, S.J.

“…Dielectric relaxation spectroscopy using dielectric probes was applied to study the (glass transition) dynamics in binary blends of isotactic PP, PS and LDPE…”
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Dynamic subchannel and slot allocation for OFDMA networks supporting mixed traffic: upper bound and a heuristic algorithm by Gotsis, A., Komnakos, D., Constantinou, P.

“…Optimizing resource allocation over only the frequency dimension in a single-cell OFDMA network is strictly suboptimal when heterogeneous non-real-time data…”
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Co-continuous morphologies in polymer blends: a new model by Willemse, R.C., Posthuma de Boer, A., van Dam, J., Gotsis, A.D.

“…A model for phase continuity in polymer blends based on geometrical requirements for co-continuous structures has been developed. The minor phase of a fully…”
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Co-continuous morphologies in polymer blends : the influence of the interfacial tension by WILLEMSE, R. C, DE BOER, A. P, VAN DAM, J, GOTSIS, A. D

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Application of a Composite Differential Evolution Algorithm in Optimal Neural Network Design for Propagation Path-Loss Prediction in Mobile Communication Systems by Sotiroudis, S. P., Goudos, S. K., Gotsis, K. A., Siakavara, K., Sahalos, J. N.

“…In this letter, we present an alternative procedure for the prediction of propagation path loss in urban environments, which is based on artificial neural…”
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The relevance of entry flow measurements for the estimation of extensional viscosity of polymer melts by GOTSIS, A. D, ODRIOZOLA, A

“…The extensional viscosity of some flexible chain polymers and a thermotropic liquid crystalline polymer was measured in uniaxial extensional flow at constant…”
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