Materials Literature
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Transparent plasma display can be realized by developing the synthetic chemistry of appropriate nanophosphors and generating nanophosphor-based transparent luminescent layers. For this goal, red-emitting Y(V 0.5 , P 0.5 )O 4 :Eu nanophosphors were synthesized by a facile hydrothermal route at 200 o C for 48 h and the…
This article has no abstract. Keywords: Fluorides; Platinum metals (Ir, Os, Pd, Ru) and their alloys
Abstract Not Provided
We present the results of a percolation-like model that has been restricted compared to standard percolation models in the sense that we do not allow finite sized clusters to break up once they have formed. We calculate the critical exponents for this model and derive relationships between these exponents and those of…
La thèse porte sur la conception et la simulation d'un réservoir de stockage solide de l'hydrogène sous forme d'hydrure de magnésium (MgH2). La particularité du réservoir conçu réside dans sa capacité à stocker l'énergie d'absorption grâce à un matériau de changement de phase (MCP). Afin de pouvoir prouver la viabilit…
This doctoral thesis is dedicated to the modeling and analysis of high-power multiphase electric machines. In the first part, the multiphase technology and variety in the field of high power electric drives and power generation is illustrated by means of some significant industrial realizations which highlight the mai…
O Brasil é o segundo maior produtor mundial de jeans, perdendo apenas para a China e o estado de Pernambuco na cidade de Toritama encontra-se o segundo maior produtor de jeans, gerando com isso uma enorme necessidade de estudos específicos ao processo de fabricação do tecido jeans mais especificamente na fase chamada…
Ni-Mn-Ga alloys close to the stoichiometric composition Ni2MnGa belong to the quite new family of ferromagnetic shape memory alloys. These alloys are characterized by the magnetic field induced strain (MFIS) based on the comparably easy motion of twin boundaries under a magnetic field. They are mostly chosen as a pote…
In this thesis, we examine the phase behaviour and nucleation in a variety of hard-sphere systems. In Chapter 1 we present a short introduction and describe some of the simulation techniques used in this thesis. One of the main difficulties in predicting the phase behaviour in colloidal, atomic and nanoparticle system…
L’industrie des materiaux composites ne cesse d’evoluer et de croitre en mettant en place de nouveaux materiaux et de nouvelles technologies. En substitution des materiaux d’origine fossile que les materiaux d’origine naturelles (et surtout vegetales) commencent a voir le jour. C’est dans ce contexte que notre travail…
Hoy en d??a, el empleo de iones muy energ?eticos y altamente cargados se ha convertido en una exitosa alternativa a los tradicionales rayos-X en el tratamiento del c?ancer. Cuando son incididos sobre tejidos vivos, dichos iones presentan una regi?on en la cual su dep?osito de energ??a es m?aximo (regi?on de Bragg); pe…
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Co-directeur de thèse : Jean-Lou LEBRUN
This thesis describes a research project on the development of a new grade of low cost spring steel with exceptional mechanical properties on the basis of a complete understanding and quantification of the metallurgical processes taking place during the various stages of the heat treatment. The new composition in comb…
This report is the first of a series documenting the results of the Swedish-American cooperative research program in which the cooperating investigators explore the geological, geophysical, hydrological, geochemical, and structural effects anticipated from the use of a large crystalline rock mass as a geologic reposit…
This special volume of Nanoscale Research Letters features selected papers presented at the Symposium E : Nanoscaled Si, Ge based Materials of the EMRS Fall meeting, held in Warsaw, Poland from September 13th-16, 2010.
Abstract This paper will focus on the advancement of waterborne acrylic coatings that features self-stratifying technology which significantly advances performance of color and gloss retention. Various analytical methods were used to verify stratification. Magnified cross sections of the coating film will show the lay…
Abstract Truly self-healing materials have the capability to repair themselves when they are damaged without the need for any external intervention. Self-healing systems based on microencapsulated healing agents developed by researchers at the University of Illinois at Urbana-Champaign were initially developed with po…
LCDs have become indispensable in our daily lives. They are used everywhere, such as in cell phones, computers, television sets, and data projectors. Based on continuous innovation, their overall display quality has reached a satisfactory level. Viewingangle restrictions are no longer an issue following implementation…
본 연구에서는 생체 적합성이 우수한 합성고분자 폴리비닐피롤리돈(PVP)과 천연고분자 카파-카라기난(κC), 1,2-헥산디올(HD)을 혼합하여 감마선 조사에 의한 방사선 가교로 하이드로젤을 제조하였다. 방사선 조사량은 25 kGy, κC의 농도는 3 wt%로 고정하였다. 이렇게 제조된 하이드로젤의 PVP, HD의 농도에 따른 물리적 특성을 관찰하였다. PVP의 농도가 증가할수록 피롤리돈 분자 사이의 가교반응으로 젤화율과 인장강도는 증가하였고, 팽윤도는 감소하였다. 반면에 HD의 농도가 증가할수록 젤화율과 인장강도는 감소하였으며, 팽윤도는 증가하였다. 항균성 실험을 통…