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Large-Scale Synthesis of the Controlled-Geometry Carbon Coils by the Manipulation of the SF<SUB>6</SUB> Gas Flow Injection Time

Jun-Ho Eum、Sung‐Hoon Kim、Soung Soo Yi 等 4 位作者2012-05-01Journal of Nanoscience and Nanotechnology

Carbon coils could be synthesized using C2H2/H2 as source gases and SF6 as an incorporated additive gas under thermal chemical vapor deposition system. Nickel catalyst layer deposition and then hydrogen plasma pretreatment were performed prior to the carbon coils deposition reaction. According to the different reactio…

Metal and Thin Film MechanicsDiamond and Carbon-based Materials ResearchPlasma Diagnostics and Applications

Enhanced Crystallizability by Protein Engineering Approaches: A General Overview

Alessia Ruggiero、Giovanni Smaldone、Flavia Squeglia 等 4 位作者2012-05-01Protein and Peptide Letters

The limiting step in macromolecular crystallography is the preparation protein crystals suitable for X-ray diffraction studies. A strong prerequisite for the success of crystallization experiments is the ability to produce monodisperse and properly folded protein samples. Since the production of most protein is usuall…

Enzyme Structure and Function

Underprotection of Mild Steel in Seawater and the Role of the Calcareous Film

Yongfang Yang、J.D. Scantlebury、Е. В. Королева2012-05-01CORROSION

Cathodically protected mild steel in seawater is influenced by calcareous films—usually precipitation of calcium and magnesium compounds from seawater, the so-called calcareous film. Under certain circumstances, underprotection can occur, for example, where current demand values are underestimated or where structures…

Corrosion Behavior and InhibitionConcrete Corrosion and Durability

Synthesis, characterization of poly‐2‐ (2‐hydroxybenzylideneamino)‐6‐phenyl‐4,5,6, 7‐tetrahydrobenzo[b]thiophene‐3‐carbonitrile: Investigation of antibacterial activity and optical properties

Esin Kaya、Nevin Turan、Bayram Gündüz 等 5 位作者2012-05-01Polymer Engineering and Science

Abstract The oxidative polycondensation reaction conditions of 2‐(2‐hydroxybenzylideneamino)‐6‐phenyl‐4,5,6,7‐tetrahydrobenzo[b]thiophene‐3‐carbonitrile were examined. The magnitude of the reflectance of the polymer decreases sharply with increasing of wavelength up to 524 nm, then reflectance of the polymer increases…

Organic Electronics and PhotovoltaicsConducting polymers and applicationsSynthesis and properties of polymers

Pseudohalogenido complexes of iron-2,2′-bidipyrrins

Martin Bröring、Silke Köhler、Clemens Pietzonka2012-05-01Journal of Porphyrins and Phthalocyanines

The chlorido iron(III) complex of octaethyl-2,2′-bidipyrrin has been transformed to a series of pseudohalide complexes by ligand exchange reactions with azide, cyanate, thiocyanate and selenocyanate anions. All new complexes show the expected N-coordination of the axial ligand to the iron(III) center. In the solid sta…

Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms

The physical properties of a backward magnetostatic wave described on the basis of the Maxwell equations

A. V. Vashkovskiǐ、Э. Г. Локк2012-05-01Journal of Communications Technology and Electronics

An electromagnetic wave propagating in an in-plane magnetized ferrite plate along the direction of the external uniform magnetic field is described on the basis of the Maxwell equations. The investigation of the physical properties of this wave (usually referred to as a backward magnetostatic wave) shows that the dist…

Magnetic Properties and ApplicationsElectromagnetic Simulation and Numerical MethodsElectromagnetic Effects on Materials

Stable and Metastable Phases in the Atomic Limit of the Extended Hubbard Model with Intersite Density-Density Interactions

Konrad Jerzy Kapcia、S. Robaszkiewicz2012-05-01Acta Physica Polonica A

We have studied a simple eective model of charge ordered insulators. The tight binding Hamiltonian consists of the eective on-site interaction U and the intersite densitydensity interaction Wij (both: nearest-neighbor and next-nearest-neighbor). In the analysis of the phase diagrams and thermodynamic properties of thi…

Physics of Superconductivity and MagnetismQuantum and electron transport phenomenaOrganic and Molecular Conductors Research

Experimental and Theoretical Study of the Optical and Electrical Properties of Nanostructured Indium Tin Oxide Fabricated by Oblique-Angle Deposition

Adam W. Sood、David J. Poxson、Frank W. Mont 等 9 位作者2012-05-01Journal of Nanoscience and Nanotechnology

Oblique-angle deposition of indium tin oxide (ITO) is used to fabricate optical thin-film coatings with a porous, columnar nanostructure. Indium tin oxide is a material that is widely used in industrial applications because it is both optically transparent and electrically conductive. The ITO coatings are fabricated,…

Thin-Film Transistor TechnologiesOptical Coatings and GratingsFluid Dynamics and Thin Films

Comparative analysis of photoluminescence and Raman enhancement by metal nanoparticles

Greg Sun、Jacob B. Khurgin、Din Ping Tsai2012-05-01Optics Letters

We present a comparative study on the enhancement of photoluminescence and Raman processes by a single metal nanoparticle. Taking an analytical approach, we show the physics behind strikingly different orders of magnitude in enhancement that have been observed, provide fundamental explanation for not observing quenchi…

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesPlasmonic and Surface Plasmon Research

Carbon-Encapsulated Iron Carbide Nanoparticles in the Thermal Conversions of Ferrocene at High Pressures

Valery A. Davydov、A. V. Rakhmanina、H. Allouchi 等 6 位作者2012-05-01Fullerenes Nanotubes and Carbon Nanostructures

Pressure-temperature-induced transformations of ferrocene at 8 GPa and different temperatures up to 1000°C have been studied by XRD, SEM and TEM techniques. It was shown that the thermal destruction of ferrocene at 480–600°C is attended with the formation of quasi-spherical nanosized (10–30 nm) particles containing th…

Graphene research and applicationsDiamond and Carbon-based Materials ResearchBoron and Carbon Nanomaterials Research

Adsorption of Vanillin by an Anisole‐Modified Hyper‐Cross‐Linked Polystyrene Resin from Aqueous Solution: Equilibrium, Kinetics, and Dynamics

Xiaoying Jin、Jianhan Huang2012-05-01Advances in Polymer Technology

Abstract A type of anisole‐modified hyper‐cross‐linked polystyrene (PS) resin, named HJ‐J00, HJ‐J04, HJ‐J08, HJ‐J10, and HJ‐J12, was synthesized, characterized, and evaluated for adsorption of vanillin from aqueous solution in this study. These resins were prepared from macroporous chloromethylated PS by adding differ…

Metal-Organic Frameworks: Synthesis and ApplicationsChemical Synthesis and ReactionsCovalent Organic Framework Applications

Alfalfa Yield Components and Soil Potassium Depletion as Affected by Potassium Fertilization

J. Lloveras、Cristina Chocarro、Lluis Torres 等 6 位作者2012-05-01Agronomy Journal

Potassium fertilization recommendations for alfalfa ( Medicago sativa L.) vary depending on the area of production, soil levels, and crop management. The objectives of this study were to determine the impact of K fertilization on irrigated alfalfa yield, yield components, and soil exchangeable K (K e ) values in a Med…

Plant nutrient uptake and metabolismClay minerals and soil interactionsSoil Management and Crop Yield

Stencil mask methodology for the parallelized production of microscale mechanical test samples

Paul A. Shade、Sang-Lan Kim、Robert W. Wheeler 等 4 位作者2012-05-01Review of Scientific Instruments

A new methodology to parallelize the production of micromechanical test samples from bulk materials is reported. This methodology has been developed to produce samples with typical gage dimensions on the order of 20-200 μm, and also to minimize the reliance on conventional focused ion beam fabrication methods. The fab…

Microstructure and mechanical propertiesForce Microscopy Techniques and ApplicationsAdvanced Surface Polishing Techniques

Exciton-hole interactions in hole-doped single-walled carbon nanotubes evaluated by absorption spectral changes

Shinichiro Mouri、Kazunari Matsuda2012-05-01Journal of Applied Physics

We studied exciton–carrier interactions in hole-doped single-walled carbon nanotubes (SWNTs) through the absorption spectral changes. Broadening and blue-shifting of the exciton absorption peak in hole-doped SWNTs are observed with increasing the concentration of the p-type chemical dopant. The absorption broadening i…

Carbon Nanotubes in CompositesSilicon Nanostructures and PhotoluminescenceMechanical and Optical Resonators

On-line (HPLC-NMR) and Off-line Phytochemical Profiling of the Australian Plant, Lasiopetalum macrophyllum

Michael Timmers、Sylvia Urban2012-05-01Natural Product Communications

On-line (HPLC-NMR) and off-line (HPLC, NMR and MS) methodologies were used to profile the constituents present in the crude extract of Lasiopetalum macrophyllum. On-flow and stop-flow HPLC-NMR supported the presence of trans-tiliroside and permitted partial identification of cis-tiliroside and 4'-methoxy-trans-tiliros…

Seaweed-derived Bioactive CompoundsMicrobial Metabolites in Food BiotechnologyPhytochemistry and Bioactive Compounds

Effect of Halloysite Nanotube Incorporation in Epoxy Resin and Carbon Fiber Ethylene/Ammonia Plasma Treatment on Their Interfacial Property

Ryota Nakamura、Anil N. Netravali、Mahesh Hosur2012-05-01Journal of Adhesion Science and Technology

Effects of halloysite nanotube (HNT) loading of up to 2% in epoxy resin on its mechanical properties were characterized. The interfacial property of the resin with carbon fiber nanocomposite was also studied. Single fiber composite (SFC) technique was used to characterize the carbon fiber/epoxy resin interfacial shear…

Polymer Nanocomposites and PropertiesFiber-reinforced polymer compositesClay minerals and soil interactions

Synthesis and Magnetic Properties of NiSe, NiTe, CoSe, and CoTe

Norio Umeyama、M. Tokumoto、Shota Yagi 等 9 位作者2012-05-01Japanese Journal of Applied Physics

Polycrystalline NiSe, NiTe, CoSe, and CoTe have been synthesized by two methods, i.e., (1) the solid-state reaction in an evacuated quartz ampoule (QA) and (2) the high-pressure (HP) technique (HP) in a Au capsule using a cubic anvil cell. All the obtained samples have the nickel arsenide-type hexagonal crystal struct…

Corporate Finance and GovernanceCorporate Taxation and AvoidanceIron-based superconductors research

Rule of Thumb for Cloaking Bandwidth Based on a Wave-Packet Argument

Christophe Craeye、Arnab Bhattacharya2012-05-01IEEE Transactions on Antennas and Propagation

A simple rule is provided for the upper-bound bandwidth of 2-D invisibility cloaking in a free-space environment. The rule is based on a group-delay argument and avoids any dependence on material characteristics. It is found that the upper relative bandwidth is proportional to the ratio between wavelength and extra pr…

Metamaterials and Metasurfaces ApplicationsPhotonic Crystals and ApplicationsAdvanced Antenna and Metasurface Technologies

Magnetic characteristics and anticancer activity of a nanocomplex consisting of detonation nanodiamond and doxorubicin

Orel Vé、Andriy Shevchenko、Г. П. Богатырева 等 10 位作者2012-05-01Journal of Superhard Materials

On the basis of detonation nanodiamond and doxorubicin antitumor drug a nanocomplex with magnetic properties of a soft ferromagnetic has been produced by mechano-magnetochemical synthesis. The combined action of the synthesized nanocomplex and local radio-frequency hyperthermia has been shown to initiate the tendency…

Nanoparticle-Based Drug DeliveryCarbon Nanotubes in CompositesDiamond and Carbon-based Materials Research

Analytical core loss models for electrical steel in power electronic applications

Dennis Kampen、Michael Owzareck、Stefan Beyer 等 5 位作者2012-05-01OpenAlex

This paper shows different state of the art analytical iron loss models and a modified model, which combines the modified Bertotti model with the form factor of Grätzer. A loss comparison under sinusoidal and non-sinusoidal voltage excitation in the frequency range from 50Hz to 1000Hz without minor loops is shown. Mea…

Silicon Carbide Semiconductor TechnologiesMagnetic Properties and ApplicationsNon-Destructive Testing Techniques