Materials Literature
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Coronary artery disease is one of the number one killers in the U.S. Current treatment of using CABG surgery has limitations from availability of autologous grafts, and low patency of artificial grafts. Tissue engineered grafts would ideally provide more availability, while also replicating the mechanical properties o…
In recent years, functional window films have gained much interest. These windows films can be used for a wide variety of applications. Some common examples of these applications are UV blocking, window tinting, insulation and shatter resistance. Most of the window films are functionalized by thin layers on a flexible…
Nanocrystalline ITO particles are prepared by Combustion Synthesis. Similarly, the structural and morphological properties for as prepared different ratio of powders to be 9:1 and 5:5 were found. Thermogravimetry analysis shows the liberation of O, H, N and metal particles with respective temperatures and loss of weig…
The choice of corrosion protection system depends on the environment and needed lifetime for the product. The right corrosion protection should be selected in a sustainable point of view, since a well-selected coating system can reduce the environmental and economical impact, by using less and better material. The sys…
Solid oxide fuel cells can offer supply of electrical energy with a high efficiency and based on a wide range of fuels. While natural gas and/or bio methane is a commonly used fuel for combined heat and power supply, liquid fuels such as gasoline, Diesel and alcohols are interesting fuels, especially for remote fuel c…
In this paper, we describe a simple approach to the fabrication of a switchable multifocal lens for smart contact lenses or other compact devices.A combination of a multi-zone static multifocal lens with a liquid crystal based zone selector yields the desired optical behavior.
De novo designed coiled coils are described that are capable of selectively discriminating between Ln3+ ions. Sites buried within the hydrophobic core are able to actively discriminate against both larger and smaller ions. Whereas linearly translating the binding site towards the N-terminus, ‘turns-off’ selectivity, o…
Tumor Myeloma adalah sebuah tumor yang berasal dari sel plasma yang memproduksi imunoglobin abnormal. Penyebab terbentuknya sel myeloma adalah adanya radiasi pengion, stimulasi antigenik, atau sarkoma. Sel myeloma ini menggangu proses remodeling tulang. Penelitian ini membahas model matematika remodeling tulang dengan…
Giant Panda waste was used as a source for isolation of lignocellulosic fibres and its subsequent characterization was done. Non-cellulosic components such as lignin, hemicellulose, and pectin were removed from the fibres by subsequently washing, sodium hydroxide (NaOH) and sodium hypochlorite (NaOCl) treatment. Fouri…
Introduction • Flexible thermal links provide a thermally conductive path with low mechanical stiffness • Scope of this work is to characterize – Uncertainty in thermal conductance measurements – Compliance improvements gained by slitting foils
In the search we study of the process to prepare different samples of ferrite ZnxCu1-xFe2O4 where the x values are (x = 0, 0.2, 0.4, 0.6, 1), were calculated the real part of the dielectric constant (€) and imaginary part (€ ' ) using LCR device it was observed decrease in the real and the imaginary with increase…
For some 140 years steel is the common construction material for commercial ships. Together with this, relatively stable, substance a persistent enemy popped up: corrosion. Two long-established methods are being used to fight this never sleeping enemy: either through the use of coatings, creating a barrier between the…
Rubber wood (hevea brasiliensis) sawdust is one of the agricultural waste that have potential in the production of renewable resource such as cellulose and nanocellulose. Utilization of ionic liquids (ILs) as solvents for cellulose processing has been growing exponentially because of the unique physiochemical properti…
AbstractIntermolecular interactions play an important role in the field of structural chemistry and biology. Understanding of weak interactions is crucial in order to understand crystal packing and design solids with specific physical and chemical properties. Aspherical electron density distribution models based on X-…
In binnen- en buitenland hebben verschillende niet-nucleaire industriële sectoren, zoals de olie- en gasindustrie, te maken met materialen die van nature radioactiviteit bevatten ('NORM'). Als gevolg van de productieprocessen kunnen reststoffen ontstaan die van nature radioactiviteit bevatten ('NORM reststoffen'). 'Re…
The living umbrella is resembling of a traditional patio umbrella but with a canopy made of a layer of plants rather than fabric or metal. It is thought to provide comfort and shade to users while increasing nature in hardscaped areas. The study aimed to compare the microclimates of metal canopy umbrella to that of li…
Here we come up with the novel idea of production quality management that will be based on the correlation of data on-line system with inputs of materials and spinning conditions and output information of nano fibrous layer. This paper demonstrates application of optical monitoring on NanospiderTM, technology and has…
In general terms, this thesis is about tuning coupled electronic and nuclear (or mechanical) dynamics in the nanoscale. With “tuning” we mean changing parameters to achieve a specific phenomenon or functionality. This is not a trivial task in this context, because the dynamics of the systems we consider depend nontriv…
As ligas a base de Níquel são frequentemente utilizadas na indústria do petróleo devido à elevada resistência mecânica e excelente resistência à corrosão. Neste cenário, a utilização da soldagem como etapa na fabricação de dutos rígidos de grande comprimento é inevitável. Assim, chapas da liga Inconel 625® foram unida…
School of Chemistry Molecular Sciences Institute University of Witwatersrand This thesis submitted in fulfillment of the requirements for the degree of Doctor of Philosophy