Materials Literature
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In this study Vanadium Redox Flow Batteries will be investigated. Nafion type membranes are mostly being used as separator. Due to the high cost and low H+ V selectivity of Nafion, sulfonated poly-ether-ether-ketone (SPEEK) membranes were produced. SPEEK has lower costs and higher selectivity between H+ V ions which m…
Nitinol is an equiatomic binary alloy of nickel and titanium. It has been extensively used since 1970s due to its unique properties of shape memory effect and super-elasticity. Nitinol also has excellent physical and mechanical properties, and together with its good biocompatibility, Nitinol has been widely applied in…
Advanced glass and carbon-fiber thermoset based composites have infiltrated into leading markets such as aerospace, automobile, marine, electronics and sports industry over the last century. The rapid rise in the demand due to the high strength/unit weight of these materials. These materials have enhanced mechanical p…
Temperature and heat of reactions have been measured during fast pyrolysis of biomass powder packed bed. For cellulose powder, temperature at the center of the bed, T_C, increased monotonously with time due to thermal conduction for T_C < 500K. The temperature increased slowly with time due to endothermic decompositio…
Dans un contexte d'exigences environnementales et economiques croissantes, notamment dans le domaine des transports (objectifs de reduction des emissions de CO2), l'optimisation de toutes les etapes du cycle de vie d'un produit est devenue une obsession pour tous les acteurs du monde industriel. Lors de la conception…
For precise thermal control in satellites under varying internal heat dissipation and thermal boundary condition, we propose a high-fill factor MEMS radiator enhanced by near-field effect. In the present design, polymer springs are shared among adjacent diaphragms, and its structural parameters are decided based on an…
Conventional cushions to prevent pressure ulcer have not completely realized the objective. For example, cushions filled with air do not sink enough to disperse the load. On the other hand, cushions filled with liquid sink excessively, and thus buttocks may hit on the bottom of the cushions. In this paper, we develop…
Semi-non-destructive Small Punch (SP) tests, at present frequently employed for mechanical characterization of structural metals in plant components [1], are here employed also for assessment of stresses. The innovative procedure proposed herein belongs to the structural inverse analysis methodology (see e.g. [2]) and…
Hydrophilic copolymers were prepared and used in different applications including dispersant additives for cement, thin film batteries, and thickener in waterborne latex coating respectively.The copolymers were prepared using methoxy [poly (ethylene glycol) methacrylate] or MPEGMA and methacrylic acid (MAA) by differe…
PANI is an unique conjugated polymer because of its controllable doping and dedoping properties. The rare earth metal doped PANI composites in nanorange reported to have several potential applications in magnetic divices and catalyses. In the present study cerium doped PANI composite (PANI-Ce) was prepared by green in…
Ferromagnetic metallic manganites are employed as prototypical spin injectors in several systems in order to reveal insights in a variety of spin related effects [1,2]. In particular, the La0.7Sr0.3MnO3 (LSMO) compound has stimulated an intense study since, in bulk form, it has one of the highest ferromagnetic transit…
Benthic cyanobacterial mats (BCMs) are impacting coral reefs worldwide. However, the factors and mechanisms driving their proliferation are unclear. We conducted a multi-year survey around the Caribbean island of Curaçao, which revealed highest BCM abundance on sheltered reefs close to urbanised areas. Reefs with high…
May 11-15, 2015.
In the present study, wettability of focused ion beam (FIB) irradiated hydrophobic FOPA surface was investigated. It was evaluated by contact angle measurement and a chemical composition of surface was analyzed by glow discharged-optical emission spectroscopy. The result shows that the hydrophobicity of the surface de…
We have fabricated metal-insulator-metal (MIM) structures, which is so-called plasmonic perfect absorber. For high temperature application, molybdenum which is a refractory metal and aluminum oxide were used as the metal layer and the insulator layer, respectively. The top Mo layer is composed of disk array structure,…
Mixed ligand complexes of transition metal ions such as Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) have been synthesized using 4-(Benzeneazo)salicylaldehyde, 2-amino-4-nitrophenol and nitrates of respective metal ions. The synthesized complexes have been characterized with infra red (IR), electronic, and 1H-NM…
Sepiolite treated using microwave and chemical technique were obtained and compounded with poly(3-hydroxybutyrate) (PHB). The effect of reaction times exposing to the microwave rays was studied and characterized through multipychonometer and scanning electron microscopy (SEM). 12 minutes was found to be the optimum re…
Background. The alloys of Fe-B system find wide application because of a complex of unique physical properties, but in the literature there is no information about thermodynamic functions of phases for these alloys with accounting for the contributions, which are responsible for fluctuation processes description.Objec…
地震等の大規模災害により、化学工場等から漏えいし、配管に付着した有害化学物質を高圧水により洗浄し、かつ洗浄水と汚染物質を回収するシステムを、県内企業の要素技術と県内大学の研究を基に開発した。床面など、既存の洗浄技術では対応できない配管の円筒面を洗浄するため、高圧洗浄ノズル、ノズルを円筒面に沿って揺動するノズル駆動機構、高圧水を供給し、かつ回収するユニットを開発するとともに、多関節ロボットと連携して動作することで、配管の円筒面を効率良く洗浄するシステムとなった。
The optical spectrum band positions and EPR parameters (g factors g//, g^ and hyperfine structure constants A// and A^) for VO2+ in Na3C6H5O7·2H2O powders are calculated from compl- ete diagonalization method and perturbation theory method. The theoretical results from both me- thods are in good agreement with the exp…