Materials Literature
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This thesis describes the structural and preliminary electrical characterisation of \nvarious “shifted” hexagonal B-site deficient perovskites, of generic formula, A4B3O12. These ceramics are reported to possess promising microwave dielectric properties, which are a requirement for use in the ever evolving mobile tele…
Open–framework inorganic materials are an important class of compounds because of their many applications in the areas of ion–exchange, separation and catalysis. Ever since the discovery of microporous aluminophosphates by Flanigen and co–workers in the early 80’s, the field of open–framework compounds has witnessed e…
N,N-carbonyl difatty amides (CDFAs) were synthesized from palm oil and urea using sodium ethoxide as a catalyst. Ethyl fatty esters (EFEs) and glycerol were produced as by-products. The synthesis was carried out by refluxing the reactants in ethanol. In this reaction, palm oil gave 79% CDFAs after 8 h and at molar rat…
INTRODUCTION Phthalocyanines are new class of photosensitiser used for photodynamic therapy. These drugs are used to treat small and superficial tumours. In recent years, a particular attention has been given to phthalocyanine in order to search suitable photosensitisers that can be clinically used as photodynamic can…
The Idaho National Laboratory (INL) has been researching the application of solid-oxide electrolysis cells for large-scale hydrogen production from steam over a temperature range of 800 to 900ºC. From 2003 – 2009, this work was sponsored by the DOE Nuclear Hydrogen Initiative (NHI). Starting in 2010, the HTE research…
Ponencia presentada en el 28th International Symposium on Chromatography celebrado en Valencia del 12 al 16 de septiembre de 2010
A presente dissertação apresenta o desenvolvimento de um medidor de componentes passivos RLC. Este medidor baseia-se num protótipo desenvolvido para possibilitar a medição da impedância de um dispositivo em teste. Tendo uma carta de aquisição de sinal como interface, o protótipo comunica com um computador que controla…
Abstract Silver matrix composites with short and long carbon fibres of high intrinsic thermal conductivity were fabricated either by liquid metal infiltration or electroless deposition of the Ag matrix and subsequent hot pressing. Active elements enhancing the bonding between inclusions and matrix were introduced by p…
El uso de los aceros avanzados de alta resistencia mecanica (AHSS) para la elaboracion de chapas para automoviles trae consigo una disminucion en el peso de los coches lo que implica un menor consumo de combustible y una disminucion del impacto ambiental, pero representa tambien un reto a la hora de su conformado, lo…
Los superconductores de alta temperatura debido a sus excepcionales propiedades se estan usando en determinadas aplicaciones como limitadores de corriente o detectores de microondas. Dentro de los superconductores de alta temperatura, el YBCO destaca entre ellos debido a su alta temperatura critica (Tc = 92K), a las m…
O aumento constante de litígios sobre patentes envolvendo polimorfos e/ou pseudo-polimorfos conduziu a um interesse crescente no estudo de formas cristalinas revelando-se num tópico de grande importância para a indústria farmacêutica. \nNeste trabalho foram efectuados estudos de pré-formulação com o princípio activo f…
Heteronuclear lanthanide complexes have gained an increased level of interest recently, due to their high potential for application in various molecular imaging techniques. They appear primarily as the most rational choice for agents to be used in multimodal imaging approaches.[1-2] Namely, due to their versatile phys…
Diffraction gratings are optical components with regular patterns of grooves, which angularly disperse incoming light by wavelength in a single plane, called dispersion plane. Traditional gratings on flat substrates do not perform wavefront transformation in the plane perpendicular to the dispersion plane. The device…
With the aim of developing sour-resistant API X65 UOE line pipe with good low-temperature toughness, the effects of the aluminum content on the simulated HAZ toughness and the formation of the M-A (martensite-austenite) constituent were examined. It was found that HAZ toughness improves remarkably when the aluminum co…
APPLICATION FIELDS OF CHITOSAN IN TISSUE ENGINEERING ABSTRACT Tissue engineering will provide the most therapeutical strategy of medicine currently and in future. Most of the current investigations concerning regen- erative medicine involves development of supporting and structural materials (scaffold). Chitosan, as a…
With the advance of polymer and other non-metallic material sciences, whole new series of polymeric materials and composites are being created. These materials are being optimized for many different applications including cryogenic and low-temperature industrial processes. Engineers need these data to perform detailed…
Acrylonitrile was successfully grafted on polystyrene using gamma-irradiation technique. The new grafted polymer (GP) was characterized and its properties were investigated. In this study, it is found that 2 gm of polystyrene, 90% (w/w) acrylonitrile monomer, 2% (w/w) ferrous ammonium sulfate (FAS) catalyst and 1.25 M…
The purpose of the discussion is to enhance the understanding of importance of sustainable development in the industry and to expand the international relation on the technology of sustainable architecture. The theme of SB10 SEOUL conference, “Sustainable Building Assessment Technology and Strategies for Higher Educat…
Ferromagnetic shape memory alloys (FSMA) have recently attracted much interest and research because of their large magnetic-field induced strain. Strains of up to 10% have been reported in single crystals of Ni2MnGa at room temperature. The mechanism of twin boundary motion is understood to be responsible for the stra…
The proposed device is capable of counting ultraviolet (UV) photons, is compatible for inclusion into space instruments, and has applications as deep- UV detectors for calibration systems, curing systems, and crack detection. The device is based on a Separate Absorption and Charge Multiplication (SACM) structure. It i…