Materials Literature
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Fabrication technique of an isotropic infrared metamaterial consisting of fourfold-symmetric 3D SRRs was proposed. A developed metal-stress driven self-folding method was demonstrated for mass-productive formation of the 3D SRRs.
Fe-Si alloy with a Si content of 10 wt. % was obtained in nanocrystalline state by mechanical alloying of elemental iron and silicon powders. The mechanical alloying process was carried out in a high energy ball mill (Fritsch, Pulverisette 4) in argon atmosphere. The X-ray diffraction (XRD) studies indicated that afte…
This paper presents investigation of plasmonic properties of coupled metal nanowires arranged to form the cluster of triangular or square configuration. Plasmon resonances of such structures embedded into dielectrics with different dielectric permittivity are studied. The main goal of the paper is to validate true pot…
A survey of the modern techniques for exact counting of the differential phase shift, afforded by the azimuthally magnetized coaxial ferrite waveguide which sustains normal TE0nmodes, is presented. The discussion ranges over two groups of methods, each of that includes three routines, linked with certain physical work…
Abstract We report the synthesis of mononuclear nonheme manganese(V)–oxo complexes in aqueous acetonitrile solution from the reaction of manganese(III) complexes using hydrogen peroxide as an oxidant for the first time. A crystal structure of chloro derivative of manganese(V)–oxo complex and its reactivity toward 3,5-…
A Single phase medium voltage power cable (XLPE) buried in soil and it can be used to investigate electric field, potential distribution and increased temperature of the cable insulation with rising load currents, are known to accelerate the formation of water and electric trees in cables which ultimately lead to cabl…
H Sawada, N Shimura, K Satoh, E Okunishi, F Hosokawa, N Shibata, Y Ikuhara; Resolving 45 pm with 300 kV Aberration Corrected STEM, Microscopy and Microanal
Thermal Barrier Coatings (TBCs) have been extensively used in aircraft engines to improve durability and performance. They protect critical engine parts such as blades and combustion chambers, which are exposed to high temperatures and corrosive environment.Testing of coated metallic alloys, subjected to ageing proces…
Studies of the mineral substance in the weathering crust (CW) of the basalts of Vietnam have shown that these basalts might be considered as a natural laboratory for the formation of mineral bionanostructures of specific crystal morphology and thermal and magnetic properties. It is suggested that the crystallization o…
The objective of this research is to observe the influence of the sintering temperature on the wear testing for some steel samples elaborated by powder metallurgy technology. For obtaining the steels there were used iron powders and graphite powders. The powders were homogenized in a high energy ball mill Pulverisette…
One-step synthesis was developed for fullerene Γ-lactones by the reaction of C 60 with aromatic and aliphatic ketones in the presence of transition metal compounds CrO 3 , K 2 Cr 2 O 7 , (NH 4 ) 2 Ce(NO 3 ) 6 ·6H 2 O.
Small near-Earth objects (NEOs) approximately 50-150 m in size are far more numerous (hundreds of thousands to millions yet to be discovered) than larger NEOs. Small NEOs, which are mostly asteroids rather than comets, are very faint in the night sky due to their small sizes, and are, therefore, difficult to discover…
A novel method for the fabrication of enzyme-entrapped conducting-polymer nanofibers, that offer higher sensitivity and increased lifetime compared with glucose sensors based on conducting polymer films is discussed by M. R. Abidian and co-workers on page 4954. The presented strategy has the advantages of offering a s…
The paper deals with the protection of the wood and its evaluation in terms of fire. It aims in comparison of ignitability of the unprotected and retardant protected samples of spruce wood, using the testing method defined in the STN EN 11925-2: 2011 (test with single-flame source), where the main evaluation criterion…
This study showed that thermally labile fibrillar collagen could be processed continuously in combination with gelatine as foaming additive by convection drying. The procedure led to stable sponges with similar structural and physical properties as found for freeze-dried collagen samples. The fibrillar collagen remain…
Studies of oxygen diffusion, interphase exchange, specific electric conductivity, and thermal expansion showed that perovskite-like Sr 0.7 Ce 0.3 MnO 3 − δ (SCMO) as a potential cathode material for solid oxide fuel cells (SOFCs) has considerable advantages over the conventional materials based on lanthanum-strontium…
BR Strohmeier, RG White, TS Nunney, P Mack, AE Wright; Chemical Characterization of Material Surfaces Using X-ray Photoelectron Spectroscopy (XPS): The Per
The Piezoelectric Actuator Drive (PAD) is a type of rotary motor that transforms the linear motion of piezoelectric stack actuators into a precise rotational motion. The very high stiffness of the actuators employed make this type of motor suited for open-loop control, but the inherent hysteresis exhibited by piezoele…
DC-DC converter is a variable structure control system inherent due to the characteristics of the power switch. Sliding mode control technology is ideally suited for variable structure control system. In this paper, the sliding mode controller is designed based on the hysteresis modulation. The sliding surface paramet…
Phase change memory (PCM) has many advantages over the traditional DRAM technology, hence it becomes a promising candidate for main memory. Multi-level cell (MLC) PCM has the benefits of higher capacity and lower cost-per-bit due to store multiple bits in a single cell. However, MLC PCM employs an iterative write sche…