Materials Literature
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The account highlights an important approach to supramolecular self-assembly via “vector-manipulation at metal centers” ranging from Werner-system to Cotton-system coordination compounds. The approach has been successfully employed in the architecture of container molecules like metal analogues of the bowl-shaped cali…
istorically, diamonds in the pink-to-red color range have been among the most highly prized. In nature, most pink-to-red, brown, and purple colors (and combinations thereof) in diamond have been attributed to the development of defect centers caused by shear stress and plastic deformation. These defects, which gemolog…
Molecular dynamics (MD) simulations were carried out to elucidate the dynamic behavior of water confined in poly(vinyl alcohol), PVA, hydrogels. Model topology is supported by experimental network parameters, and simulation results are compared to an incoherent quasielastic neutron scattering (QENS) investigation carr…
The comparative investigation of structure, morphology, and transport properties of nanoscaled carbon materials (NCM) synthesized by different methods is carried out.
The effects of washing and drying treatments on fibrillation, fuzz, and pill formation of lyocell knitted fabrics are investigated in this study. Pilling ratings of the fabrics after wash (W), dry (D), and wash/dry (WD) treatments are evaluated according to a pilling scale using a microscope. Water retention values an…
Targeted delivery of anticancer drugs is one of the most actively pursued goals in anticancer chemotherapy. A major disadvantage of anticancer drugs is their lack of selectivity for tumour tissue, which causes severe side effects and results in low cure rates. Any strategy by which a cytotoxic drug is targeted to the…
editorial reviewed
Abstract The reticular theory of twinning is extended to include the contribution of different, coexisting sublattices that consist of quasi-restored nodes (cooperative sublattices) and are characterized by a specific superposition index. The overall degree of quasi-restoration of the twin lattice is a function of the…
The US Advanced Limiter-divertor Plasma-facing Systems (ALPS) program is developing the science of liquid metal surface divertors for near and long term tokamaks. These systems may help solve the demanding heat removal, particle removal, and erosion issues of fusion plasma/surface interactions. ALPS combines tokamak e…
The freshwater diatom flora of Cape Cod, Massachusetts, USA, was recently described using surface sediments from 56 largely glacial kettle lakes scattered over the narrow peninsula. During our examination we had the opportunity to study seven rare and interesting taxa with light (LM) and scanning electron microscopy (…
Abstract A green method for the controlled synthesis of aliphatic polymers is presented. The ring‐opening polymerizations of cyclic monomers including several lactones, such as caprolactone (CL) or pentadecalactone (PDL), and cyclic anhydride monomers, such as succinic anhydride (SUC) and tetrahydrofuran (THF), cataly…
The demand for healthy lifestyles and comfort drives researchers to explore newer techniques to impart more functional properties in textiles. An attempt has been made to produce UV-resist, breathable fabrics for use in the cold regions of India as high-altitude fabrics. For UV-resist property, a dispersion of benzotr…
Abstract A series of four different M 10 selenide cluster molecules of the general formula [M 10 Se 4 (SePh) 12 (PR 3 ) 4 ] (M = Zn, Cd, Hg; R = organic group) have been synthesized by the reaction of metal chlorides MCl 2 (M = Zn, Cd, Hg) with phosphanes PR 3 , Se(SiMe 3 ) 2 and PhSeSiMe 3 in organic solvents. The in…
We report on a high efficiency tapered grating surface-emitting laser with an antireflection-structured (ARS) substrate. A 64% improvement of the device efficiency is obtained by monolithic integration of a sawtooth-shaped ARS on the GaAs substrate. Slope efficiencies of 0.82 W/A were measured at 975 nm in pulse pumpi…
Partial discharge (PD) characteristics in air and argon under low pressures down to 13.3 Pa (0,1 Torr) and 60 Hz AC energization are studied in an energized needle-plane electrode arrangement. The electrode configuration, vacuum chamber, facilities, and electrical connections for the experimental setup are described.…
Electrons are generally emitted from the tip of a carbon nanotube (CNT) when the CNT stands on a substrate, but it is not clear where electrons are emitted when a CNT is bent or lies down on a substrate. We have investigated the field emission properties of the side wall of a multi-walled carbon nanotube (MWNT) compar…
Abstract The new polyoxotungstates (NH4)5Na9[Cu4(H2O)2(GaW9O34)2]·22 H2O (1) and (NH4)14[Zn4(H2O)2(GaW9O34)2]·37 H2O (2) were synthesized in aqueous solution and characterized by IR and Raman spectroscopy, energy dispersive X‐ray fluorescence and single‐crystal X‐ray analysis. Compounds 1 and 2 contain the trivacant α…
[reaction: see text] The unusually stable perchloro-2,5,8-triazaphenalenyl radical 1 and its twisted dechlorinated dimer 2 were synthesized and characterized by ESR spectroscopy and X-ray crystallography. The X-ray structure of dimer 2 shows that the double bond connecting the two triazaphenalene systems is strongly t…
In this paper, we present scaling impacts on electromigration-induced mass transport in narrow single-damascene Cu interconnects. Linewidths ranging from 0.12 µm to 0.20 µm were used to demonstrate the impacts. Lifetimes that are determined by resistance degradation decrease according to decreasing linewidth at a fixe…
Abstract The mineral conichalcite from the western part of Bagdad mine, Bagdad, Eureka District, Yavapai County, Arizona, USA has been characterized by electronic, near-infrared (NIR), Raman and infrared (IR) spectroscopy. Scanning electron microscopy (SEM) images show that the mineral consists of bundles of fibres. C…