Materials Literature
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Power cable as one of the main components of power networks, play an important role in electric power transmission between different zones. In cable, stress will maximum nearer to the surface of the conductor and it will get decreases as we move away from core to outer sheath. So, dielectric will be unnecessarily stro…
A new class of H-shaped conjugated mesogens, namely alkyl- and alkoxy-substituted derivatives of 3,3′,5,5′-tetrakis(phenylethynyl)-2,2′-bithiophene (4PE2T), have been synthesised, and the relationships between molecular structures and mesomorphic properties investigated. The mesomorphic properties of the 4PE2T derivat…
The study of drying of red alga (Gelidium sesquipedale, Rhodophyta), with initial sample masses varying from 1 to 10 g, was carried at different temperatures 30 – 80 °C. The experimental drying curves show a slight effect of the initial mass. Two types of curves are obtained: those at temperatures below 50 °C are fitt…
Purpose. High chromium cast irons with austenitic matrix have low machinability. The aim of work is search of new energy-saving modes of preliminary softening heat treatment enhancing the machinability of castings by forming an optimum microstructure. Methodology. Metallographic analysis, hardness testing and machinab…
In this paper secondary optics for an LED lamp with a narrow beam angle of 15° were optimized by using a two-reflector system, to reduce both its size and the occurrence of satellite rings. The conic constant and the curvature of the primary reflector were determined by considering the relation of the source size to t…
The current paper study the hardness behaviour of Kano cattle horn under nanoindentation and micro hardness tests. Five different samples were generated and level A, B, C, D and E cut along the whole length of the horn from the skull to the tip respectively. The samples were indented by diamond Berkovich indenter in s…
Toxicological properties of diesel engines’ exhaust gases, in particular polycyclic aromatic hydrocarbons, as well as diesel engines’ exhaust gases composition, toxicity assessment technique for exhaust gases of diesel engines working at different types of fuel have been presented. Advantages related to use in diesels…
Bin Shan et al. [Phys. Rev. B 80, 035404 (2009)] developed an embedded-atom-model potential for studying structural properties of Pd/Au alloy nanoparticles by means of Monte Carlo simulations. The parameters reported for the Pd-Au pairwise interaction appear to be erroneous as the Pd-Au interaction potential, Fig. 5(c…
Mechanical contacts are crucial to systems in engineering, electronics and biology. The microscopic nature of the contacting surfaces determines how they mesh on the nanoscale. There is thus much interest in methods that can map the actual area of two surfaces in contact--the real contact area--during the loading or u…
Ferrites are critical for nonreciprocal RF/microwave devices. In the current work, epitaxial NiFe2O4 nanowires were self-assembled in Pb(ZrTi)O3 matrix on a (001)-oriented MgAl2O4 single-crystal substrate by a 90° off-axis RF magnetron sputtering method. The influences of substrate temperature, argon-over-oxygen ratio…
In this paper, an approach based on the nonlinear theory of elastic dynamics is proposed to model microstructure evolution in a shape memory alloy patch. The hysteretic dynamics of the patch at the macro-scale is also modeled by employing Hamilton's principle. The elastic potential energy function is constructed as no…
The interaction of a current-driven domain wall with an anisotropy boundary in nanowires with perpendicular magnetic anisotropy is investigated. A local reduction of the anisotropy constant is used to create an artificial boundary where the domain wall gets pinned. Micromagnetic simulations and analytical calculations…
We discuss systems for which two carefully derived, yet conflicting, theories coexisted. Dense polymers in two dimensions and star-shaped polymers in the θ-regime are considered. In both cases the two proposed theories are in a sense exact, but turn out to satisfy different crossing rules (for the 2d polymer) or to co…
The reversible cyclability of Si based composite anodes is greatly improved by optimizing the atomic ratio of Cu/Si in the films fabricated via magnetron sputtering. The galvanostatic test results show that the thin film anode made of 20%at. Cu delivers 1950 mAhg-1 as the initial discharge capacity with 80% Coulombic…
This paper aims at examining and analysing an Egyptian partially gilded bronze group statue excavated from the San al‐hagar (Tanis) site and housed in the Egyptian Museum in Cairo in October 2007. It has deteriorated severely and is covered with an extremely disfiguring and heterogeneous crust that varies in colour, t…
Reconstructive surgery for tumor resection, trauma, and congenital anomaly involves volume augmentation with autologous tissue transfer. However, a healthy region is damaged as a donor site, and the autologous tissue is transferred like a patchwork to the recipient site. We have attempted to induce adipogenesis activi…
Presented to the 10th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Heskett Center, Wichita State University, April 25, 2014.
Observation of negative electron affinity in low-voltage discharging boron-doped polycrystalline diamond, Sakai, Tadashi, Ono, Tomio, Sakuma, Naoshi, Yoshida, Hiroaki, Suzuki, Mariko, Takeuchi, Daisuke, Kono, Shozo, Yamasaki, Satoshi
This paper presents a dynamic analysis of three-dimensional beams. Structures made of functionally graded materials are considered. Several higher-order as well as classical theories are derived by means of a compact notation for the a-priori expansion order of the displacement field over the beam cross-section. The g…
We investigated phase behavior of a mixture solution involved in the vanillin extraction via a coarse-grained simulation method, dissipative particle dynamics (DPD). The ternary mixture, which consists of water, vanillin, and ethanol, is chosen for the study. Four phases depending on different compositions of three sp…