Materials Literature
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Nano -alumina-supported transition metal-based mono- (Pd0/-Al2O3 or Co III/-Al2O3) and bimetallic catalysts (Pd0CoIII/-Al2O3), were prepared by wet impregnation, oxidation and in situ reduction of the palladium. The palladium(II) acetate [PdII3(OOCCH3)6], cobalt(II) acetate [Co II(OOCCH3)2]·4H2O and palladium, cobalt…
An eight-channel 400 GHz-spacing planar waveguide multi/demultiplexer employing etched diffraction grating is designed and fabricated on a silicon-on-insulator platform with a 220 nm thick top layer. The design parameters are optimized by scalar diffraction simulation to obtain optimal performance with a small footpri…
The dielectric loss tanδ of half-doped manganite La 0.5 Ca 0.5 MnO 3 is investigated using Green's function technique. The La 0.5 Ca 0.5 MnO 3 is described by the Kondo-lattice model in the double exchange limit, taking into account the Jahn—Teller distortion and the super-exchange interaction between the localized el…
Article The hemicellulose content in two chemical pulps and its influence on Fock’s test and the gamma number of the resulting viscose dope was published on August 1, 2013 in the journal Nordic Pulp & Paper Research Journal (volume 28, issue 3).
Abstract A new method for analyzing oriented structures of polymers and their formation processes, called “molecular‐cluster‐assembly” (MoCA), is proposed. With this method, a polymer structure is assembled by molecular clusters at local minimum‐energy states and comprised of alternating structures along variable atom…
The product graph B * F of graphs B and F is an interesting model in the design of large reliable networks. Fault tolerance and transmission delay of networks are important concepts in network design. The notions are strongly related to connectivity and diameter of a graph, and have been studied by many authors. Wide…
Using Green's function method, we investigate the spin transport properties of armchair graphene nanoribbons (AGNRs) under magnetic field and uniaxial strain. Our results show that it is very difficult to transform narrow AGNRs directly from semiconductor to spin gapless semiconductors (SGS) by applying magnetic field…
Nanotechnology is an emerging interdisciplinary area, which has many applications including drug delivery. Nanocarrier drug delivery involves target drugs enclosed in a particular ceramic, polymer, and/or amphiphilic matrix. Controlled-release, nano-platform availability for combinatorial therapy and specic targeting…
Carbon steel sheets were coated with epoxy coatings containing different contents of urea-modified montmorillonite nanoparticles. Corrosion resistance of the samples was determined using electrochemical techniques in 3.5 wt% sodium chloride (NaCl) solutions at room temperature and 80 °C. Protective properties were imp…
The GaN ultraviolet metal-semiconductor-metal (MSM) photodetectors epitaxially grown on Si (111) and sapphire (0001) substrates were prepared and characterized. By implementing our elaborate AlN/AlGaN buffer multilayer scheme on Si, the maximum responsivity of n–-GaN MSM photodetector with TiW transparent electrodes a…
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This paper presents an automated handling approach of two-dimensional nanomaterials using a robotic setup inside a high-resolution scanning electron microscope. Applying image processing of the visual feedback provided by the electron microscope, a fully automated sequence is developed to align a robotic driven force…
CoS and graphene nanocomposites was prepared from cobalt nitrate, thioacetamide and graphene as starting materials in the presence of poly(vinylpyrrolidone) as surfactant. Further its morphology and properties were characterized by X-ray diffraction (XRD), Field Emission scanning electron microscope (FESEM), Diffusive…
Nanotechnology emerges from the physical, chemical, biological, and engineering sciences, where novel techniques are being developed to probe and manipulate single atoms and molecules. By interacting with biological molecules, nanotechnology opens up a promising and revolutionary eld of application in medicine. Miniat…
Zinc oxide thin films ZnO were prepared by spray pyrolysis method with different thickness from(247.35,342.4,437.6)nm onto glass substrate at 350◦c .The concentration is 0.3 Molary,X-ray diffraction patterns confirm the proper phase formation of the material.The optical properties of ZnO were determined through the op…
This paper examined the flexural characteristics and potentials of oil palm stem (OPS) as reinforcement in concrete beams. The soaring cost of steel used in building construction has been a source of concern to governments and private developers in most developing countries. Utilising OPS in concrete production not on…
The present work focuses on the investigation of the mechanical properties of the composite material composed of preliminary modified rubber crumb and a polymer binder. The modification of rubber crumb was realized by means of treatment with water or sulphuric acid, in order to change the degree of polymer crosslinkin…
Doping metal oxides with metallic impurities has been the subject of previous studies for enhanced sensing performance. In this paper, we present a review on syntheses of transition metal doped metal oxide nanostructures using arc discharge method. Tungsten oxide was doped with Palladium, Scandium and Vanadium, respec…
Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.
Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.