Transport Properties of Composites with Carbon Nanotube‐Based Composites
The comparative investigation of structure, morphology, and transport properties of nanoscaled carbon materials (NCM) synthesized by different methods is carried out.
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A Pilling Mechanism of Man-Made Cellulosic Fabrics—Effects of Fibrillation
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…
Preparation and characterization of a biodegradable drug targeting system for anticancer drug delivery: Microsphere-antibody conjugate
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…
TRANSFORMATION SEQUENCES OF COPPER SULFIDES AT VIELSALM, STAVELOT MASSIF, BELGIUM
editorial reviewed
Hybrid twinning – a cooperative type of oriented crystal association
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…
Overview of the ALPS Program
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…
Observations on new and rare species of freshwater diatoms from Cape Cod, Massachusetts, USA
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 (…
Ring‐Opening Polymerization of Cyclic Monomers with Aluminum Triflate
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…
UV-resist, Water-repellent Breathable Fabric as Protective Textiles
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…
Thermal Properties of [M10Se4(SePh)12(PR3)4] (M = Zn, Cd, Hg)Cluster Molecules – Synthesis and Structure of[Cd32Se14(SePh)36(L)4]; L = OPPh3, OC4H8
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…
High efficiency surface-emitting laser with subwavelength antireflection structure
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 measurements in air and argon at low pressures with and without a dielectric barrier
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.…
Comparison of Field Emissions from Side Wall and Tip of an Individual Carbon Nanotube
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…
The First Sandwich‐Type Heteropolytungstates Consisting of Trivacant Gallium( III )‐Substituted Keggin Fragments
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…
Perchloro-2,5,8-triazaphenalenyl Radical
[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…
Scaling Impacts on Electromigration in Narrow Single-Damascene Cu Interconnects
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…
Characterization of conichalcite by SEM, FTIR, Raman and electronic reflectance spectroscopy
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…
Assessment of First Wall and Blanket Options with the Use of Liquid Breeder
As candidate blanket concepts for a U.S. advanced reactor power plant design, with consideration of the time frame for ITER development, we assessed first wall and blanket design concepts based on the use of reduced activation ferritic steel as structural material and liquid breeder as the coolant and tritium breeder.…
Dinuclear Copper(II) Complexes of Two Homologous Pyrazine‐Based Bis(terdentate) Diamide Ligands
Abstract The 1:1 reactions of the new bis(terdentate) diamide ligand N , N ' ‐bis(2‐pyridylmethyl)pyrazine‐2,5‐dicarboxamide(H 2 L 1 ) and its higher homologue N , N ' ‐bis[2‐(2‐pyridyl)ethyl]pyrazine‐2,5‐dicarboxamide (H 2 L 2 ) with Cu(BF 4 ) 2 · 4 H 2 O in the absence of added base have consistently afforded dicopp…
Synthesis, properties and aplications of functionalized polyanilines
Novel functionalized conductive polymers are synthesised using modification reactions of polyaniline: diazonium coupling, nucleophilic addition and N-nitrosation. Diazonium salt coupling with polyaniline renders modified polymers which are soluble in common solvents and electroactive. Nucleophilic addition could also…