Materials Literature
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This study focuses on the effects of various spindle diameters and the spindle working period on the properties of 100% viscose MVS yarns. MVS yarn samples produced with four levels of spindle diameter, 1.1, 1.2, 1.3, 1.4 mm and five levels of the spindle working period: 0, 1, 2, 3, 4 month, were evaluated on the basi…
In this paper, a general symmetry-based approach to the electrodynamics of a class of low-dimensional structures, carbon nanotubes, is proposed. The contribution of the microscopic configuration is handled using the symmetry group of the structure under consideration. An explicit form of the electromagnetic field is d…
Electrical resistivity of AlN ceramics was examined with various amounts of Y2O3 within 0 to 4.8 mass%. The electrical resistivity at room temperature varied from 1016 to 1010 Ω·cm with different Y2O3 amounts and at sintering temperatures. In the typical samples sintered at 1900°C, a smaller amount of Y2O3 addition wi…
Motivated by recent experimental observations of size quantization of electron energy levels in graphene quantum dots [7] we investigate the level statistics in the simplest tight-binding model for different dot shapes by computer simulation. The results are in a reasonable agreement with the experiment which confirms…
Structural models of yarn, plain weave fabrics, and plain weave fabric/resin composites were derived and theoretical formulas for the effective thermal conductivity were developed from these models. First the effective thermal conductivity of the transverse direction of the yarn was obtained by using the effective the…
Alloys 690 and 152 are the replacement materials of choice for Alloys 600 and 182, respectively. The latter two alloys are used as structural materials in pressurized water reactors (PWRs) and have been found to undergo stress corrosion cracking (SCC). The objective of this work is to determine the crack growth rates…
In this study, an experimental work is presented to determine the effects of fourteen different knit structures of 80% Lambswool-20% Polyamide knitted outerwear fabrics, on the dimensional properties; pilling resistance, abrasion resistance, bursting strength, air permeability and bending rigidity. The effect of relax…
Contractile dysfunction and cardiomyopathies secondary to apoptotic cell death are limiting factors for treating cancer with doxorubicin. Inhibition of volume-sensitive chloride currents (I(Cl,vol)) has been reported to blunt doxorubicin-induced apoptosis in cardiomyocytes. To investigate cellular contractility during…
The assembly reaction of a Mn(III) salen-type dimeric complex, [MnIII2(saltmen)2(H2O)2](ClO4)2 (saltmen2- = N,N'-(1,1,2,2-tetramethylethylene)bis(salycylideneiminate)), and a Ni(II) oximato complex, [Ni(II)(pao)2(phen)] (pao- = pyridine-2-aldoximate; phen = 1,10-phenanthroline), in the presence of NaBPh4 yielded a het…
natural fibres; biocomposites; reinforcement; mechanical properties; urea-formaldehyde. (*) To whom correspondence to be addressed.
Activated carbon monolith is widely used as adsorbent to enhance the storage capacity of natural gas,which greatly inspires the investigation on adsorption dynamics of methane on this type of adsorbents.The differential pressure permeation method was used to measure the surface diffusion coefficient.The impacts of Knu…
Spatially resolved electron energy loss spectroscopy experiments have given the measurement of the electromagnetic eigenmodes of individual metallic nanoparticles. The Electromagnetic Local Density of States has been measured with c.a 10 nm spatial accuracy over the whole near-infrared/ultraviolet regime.
With the advent of nano-particle fillers in insulating materials, the insulating materials of superior quality have come to fore. In the recent past, nanocomposite LDPE/XLPE (low density polyethylene/cross linked polyethelene) power cable dielectrics have been synthesized. A preliminary evaluation of these new class o…
The two-step reaction between LiH and NH(3)BH(3) in THF leads to the production of more than 14 wt% of hydrogen at 40 degrees C.
We report on the multiple ZnO nanowires field-effect transistors (FETs), which were formed by assembling as-synthesized ZnO nanowires on a SiO 2 /Si substrate using an optimized alternating current (AC) dielectrophoresis (DEP) technique in three-probe back-gate geometry. The AC DEP was optimized with a bias voltage of…
Recent advances in the area of chiral nano-building blocks are presented and discussed in the context of nanoscience and nanotechnology moving toward emerging functional applications of chiral nanomaterials, such as enantioselective catalysis, sensing and chirooptical devices. The emphasis is given to chiral nanoparti…
Renewable resources such as natural fibers in the field of fiber reinforced materials with their new range of applications represent an important basis in order to fulfill the ecological objective of creating eco‐friendly materials. In views of enormous advantages a study on green composites using Saccaharum cilliare…
Energy transfer from photoexcited porphyrin molecules to single-walled carbon nanotubes (SWNTs) has been experimentally detected for samples in aqueous Triton X-100 micellar suspensions. Addition of SWNTs to micelle-suspended porphyrin results in strong quenching of porphyrin fluorescence. Measurements of concentratio…
We report an approach to the design of 'charge-shifting' anionic polymers that provides control over the disruption of ultrathin polyelectrolyte multilayers in aqueous media. We demonstrate that the addition of citraconic anhydride to poly(allylamine) yields an anionic, carboxylate-functionalized polymer (polymer 2) t…
Modeling electromagnetic forming processes is in many ways simpler than modeling traditional metal forming processes. In electromagnetic forming the problem is often dominated by inertial acceleration by a magnetic field. This is a much better posed problem than the more traditional ones that are often dominated by co…