Materials Literature
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The paper describes a completely new topology for a low-speed, high-torque permanent brushless magnet machine. Despite being naturally air-cooled, it has a significantly higher torque density than a liquid-cooled transverse-flux machine, whilst its power factor is similar to that of a conventional permanent magnet bru…
This article will propose different energy storage systems, ranging from 0.91 kWh to 1.56 kWh, suitable for a 30 m long tram. To configure the system regarding energy content, voltage variation, maximum current and power losses, a model of the tram, network and substations power flow has been developed in a Matlab/Sim…
Nano-sized calcium deficient hydroxyapatite (CDHA) powders with an average particle size less than 100 nm were prepared by a co-precipitation method at low temperature. The initial Ca/P molar ratio was chosen to be less than the stoichiometric ratio of beta-TCP (1.5). Additionally, lowering the temperature and pH valu…
The statistical properties of the turbulent Reynolds stress arising from collisional drift turbulence in a magnetized plasma column are studied and a physical picture of turbulent driven shear flow generation is discussed. The Reynolds stress peaks near the maximal density gradient region, and is governed by the turbu…
From the experimental results some conclusions can be drawn as follows. The properties of mixture between mineral oil and natural ester from palm oil in general strongly affected by the ester content. Increasing the ester content significantly enhance the dielectric breakdown. The increase of the ester content also re…
Thin-film morphology---its origin at the atomic level and its evolution---has a long and rich history dating to the very first papers on thin-film deposition in the mid-1800s. I have traced this literature for films prepared under low adatom-mobility conditions and collected my thoughts on the efforts and the current…
Abstract The thermal history of the Buntsandstein (Lower Triassic) sedimentary rocks that crop out in the Vosges Mountains, or are deeply buried in the Rhine Graben, was evaluated on the basis of a combined mineralogical, morphological, oxygen isotope and K-Ar-dating study of illite separates from five locations over…
Several cogging torque minimization techniques exist for permanent magnet (PM) machines, and these are well documented in earlier studies. However, the majority are used to reduce the cogging torque in radial flux PM (RFPM) machines. In this paper, cogging torque minimization techniques for axial-flux PM (AFPM) disk m…
Hsp90 (heat shock protein 90) is a molecular chaperone that modulates the stability and/or transport of a diverse set of critical cellular regulatory, metabolism, organization, and signaling proteins. Binding to Hsp90 is required for normal function of many proteins. In addition, Hsp90 has an extra-cellular function.…
In this paper, we present a scheme for ground-state cooling of a flexural mode of a nanomechanical beam incorporated in a loop-shaped Cooper-pair box (CPB) circuit. Via the Lorentz force coupling of the beam motion to circulating CPB-circuit currents, energy is transferred to the CPB qubit which acts as a dissipative…
Porous biodegradable polymeric scaffolds are essential for tissue engineering application since they should provide the adequate three-dimensional structure for cellular attachment and tissue development. In particular, pore size and shape and overall porosity are key structural features in controlling neotissue forma…
We present a multitechnique approach to experimentally determine the elastic anisotropy of polycrystalline hcp Fe at high pressure. Directional phonon measurements from inelastic X‐ray scattering on a sample with lattice preferred orientation at 52 GPa in a diamond anvil cell were coupled with X‐ray diffraction data t…
We present high pressure–high temperature diffraction data in the 0–10 GPa and 300–1000 K range of all three main iron phases. The refinements of the diffraction patterns give molar volumes to high precision and show that the α−γ−ε triple point is located at 8.2±0.1 GPa and 678 K. These values are significantly lower…
The multidimensional merit function space of complex optical systems contains a large number of local minima. We illustrate a method to find new local minima by constructing saddle points, with examples of deep and extreme UV objectives. The central idea of the method is that, at certain positions in a system with N s…
To significantly reduce the bleeding of 4,4′,(5′)‐di(tert‐butylcyclohexano)‐18‐crown‐ 6 (DtBuCH18C6), an improved novel macroporous silica‐based polymeric composite (DtBuCH18C6+TBP)/SiO2‐P was synthesized. It was performed by impregnating and immobilizing DtBuCH18C6 into the pores of the SiO2‐P particles via the molec…
An in situ cell that allows the electrical resistance of a sample pellet to be measured while performing neutron diffraction experiments has been developed at the ISIS pulsed neutron source. The sample is held between two spring loaded platinum electrodes embedded in a boron nitride clamp assembly with the resistance…
A new promising organic chromophore for two-photon laser absorption at 1064 nm with 1,4-diethoxy-2,5-bis[2-(5-methylthien-2-yl)ethenyl]benzene (A-C) was synthesized. We have performed evaluations of the two-photon absorption for these chromophores incorporated into the polymer matrices. Following the obtained quantum…
This study has been conducted for the purpose of making the effective use of two enzymes viz . proteases and lipases for the removal of natural fat from the skin and increasing the effectiveness of degreasing; also decreasing the amount of chemicals used in degreasing and reducing the load of water treatment and event…
Ground state lattice vibrational properties of wurtzite–BeO are reported using an ab initio plane-wave pseudopotential method. The ab initio results for the phonon dispersion relations are in good agreement with the available experimental data. The only discrepancy observed between experiment and present data for the…
The design of modern high power density permanent magnet synchronous machines requires adapted automated design tools. The temperature estimation at characteristic points of the machine, and in particular in permanent magnets, is essential to accurately simulate the electromagnetic behavior and avoid irreversible dema…