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Plasmonic random laser from dye-doped cholesteric liquid crystals incorporating silver nanoprisms

Shu-Han Chang、Jin‐Jei Wu、Chi‐Ching Kuo 等 6 位作者2020-08-04Optics Letters

Plasmonic random lasers have been demonstrated in combining dye-doped cholesteric liquid crystals (DD-CLCs) and silver nanoparticles (AgNPs). The DD-CLC laser reveals the lowest threshold and highest slope efficiency through the localized surface plasmon resonance of AgNPs with the best coupling of the emission spectr…

Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsRandom lasers and scattering media

Vanadium oxide coatings to self-regulate current sharing in high-temperature superconducting cables and magnets

Zhenghuai Yang、Aurora Cecilia Araujo Martínez、Sachin V. Muley 等 6 位作者2020-08-04Journal of Applied Physics

High-temperature superconductors such as REBa2Cu3O7 − δ (REBCO, RE = rare earth) enable high-current cables and high-field magnets. By removing the turn-to-turn insulation in a magnet application, recent experiments demonstrated that REBCO magnets can self-protect against catastrophic damage during a superconducting-t…

Physics of Superconductivity and MagnetismMagnetic and transport properties of perovskites and related materialsTransition Metal Oxide Nanomaterials

Simulated field-modulated x-ray absorption in titania

Pragathi Darapaneni、Alexander M. Meyer、Mykola Sereda 等 6 位作者2020-08-04The Journal of Chemical Physics

In this paper, we present a method to compute the x-ray absorption near-edge structure (XANES) spectra of solid-state transition metal oxides using real-time time-dependent density functional theory, including spin–orbit coupling effects. This was performed on bulk-mimicking anatase titania (TiO2) clusters, which allo…

ZnO doping and propertiesX-ray Spectroscopy and Fluorescence AnalysisElectron and X-Ray Spectroscopy Techniques

Effects of lightning impulse front time on substation grounding system performance

Muhammad Adnan、Zulkurnain Adul Malek、Nur Syazwani Mohd Din 等 6 位作者2020-08-04Indonesian Journal of Electrical Engineering and Computer Science

The role of the grounding system in the safety of the power system and protection of personnel is obvious during an unexpected short circuit or lightning discharge at the substation. The aim of this work is to analyze the effects of several parameters: lightning impulse front time, soil resistivity and types of grid m…

High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaHigh-Voltage Power Transmission Systems

Momentum-dependent mass and AC Hall conductivity of quantum anomalous Hall insulators and their relation to the parity anomaly

Christian Tutschku、J. Böttcher、René Meyer 等 4 位作者2020-08-04Physical Review Research

The Dirac mass of a two-dimensional QAH insulator is directly related to the parity anomaly of planar quantum electrodynamics, as shown initially by Rev. Lett. 51, 2077 (1983)]. In this work, we connect the additional momentum-dependent Newtonian mass term of a QAH insulator to the parity anomaly. We reveal that in th…

Graphene research and applicationsQuantum and electron transport phenomenaTopological Materials and Phenomena

Investigation of Size Effects Due to Different Cooling Rates of As-Quenched Martensite Microstructures in a Low-Alloy Steel

Marius Graf、M. Küntz、H. Autenrieth 等 4 位作者2020-08-04Applied Sciences

Martensite transformation is a complex mechanism in materials that is classically initiated by a suitable heat treatment. This heat treatment process can be optimized based on a better understanding of the physical mechanisms on the length scale of several prior austenite grains. It is therefore appropriate to conside…

Microstructure and Mechanical Properties of SteelsMetallurgy and Material FormingMetal Alloys Wear and Properties

Microwave-Enabled Incorporation of Single Atomic Cu Catalytic Sites in Holey Graphene: Unifying Structural Requirements of a Carbon Matrix for Simultaneous Achievement of High Activity and Long-Term Durability

Qingdong Li、Hongbin Yang、Junjie Ouyang 等 11 位作者2020-08-04ACS Applied Energy Materials

Abstract This work reports our discoveries from the first exploration in microwave pyrolysis of a metal–organic framework. A time- and energy-efficient approach was developed for direct fabrication of electrochemical single-atom catalysts (E-SACs) without the requirement of post-treatment. The most unique structure of…

Advancements in Battery MaterialsElectrocatalysts for Energy ConversionSupercapacitor Materials and Fabrication

Catalytic Activity of Mixed Al2O3-ZrO2 Oxides for Glucose Conversion into 5-Hydroxymethylfurfural

Benjamín Torres-Olea、Sandra Mérida-Morales、Cristina García‐Sancho 等 5 位作者2020-08-04Catalysts

In the present work, a series of catalysts based on aluminum and zirconium oxides was studied for the transformation of glucose into 5-hydroxymethylfurfural. These catalysts were characterized by using experimental techniques, such as X-ray diffraction, N2 adsorption–desorption at −196 °C, X-ray photoelectron spectros…

Supercapacitor Materials and FabricationCatalysis for Biomass ConversionCatalysis and Hydrodesulfurization Studies

Comparative study of radium and strontium behaviour in contact with cementitious materials

Jana Kittnerová、Barbora Drtinová、K. Štamberg 等 7 位作者2020-08-04Applied Geochemistry

A comparative study of the sorption behaviour of radium and strontium was performed on various cementitious materials including crushed hardened cement pastes (HCP) and concretes as well as a synthesised calcium silicate hydrate (CSH) phase. Rd values obtained for the Ra and Sr uptake on commercial cement materials we…

Concrete and Cement Materials ResearchRadioactive element chemistry and processingNuclear materials and radiation effects

Use of titanate to improve interfacial interaction and mechanical properties of polyethylene/artificial marble wastes composites

Honglang Lu、Keyu Chen、Xin Yang 等 7 位作者2020-08-04Journal of Vinyl and Additive Technology

Abstract The resource utilization of artificial marble wastes (AMWs) is urgently needed for environmental protection as a large amount of artificial marble are used as construction material. Nevertheless, it still remains challenging to achieve high performance of AMWs‐filled polymer composites due to their poor inter…

biodegradable polymer synthesis and propertiesInnovative concrete reinforcement materialsInnovations in Concrete and Construction Materials

Potential energy function for a photo‐switchable lipid molecule

Oskar Klaja、James A. Frank、Dirk Trauner 等 4 位作者2020-08-04Journal of Computational Chemistry

Photo-switchable lipids are synthetic lipid molecules used in photo-pharmacology to alter membrane lateral pressure and thus control opening and closing of mechanosensitive ion channels. The molecular picture of how photo-switchable lipids interact with membranes or ion channels is poorly understood. To facilitate all…

Lipid Membrane Structure and BehaviorPhotochromic and Fluorescence ChemistryPhotoreceptor and optogenetics research

Computational and Spectral Means for Characterizing the Intermolecular Interactions in Solutions and for Estimating Excited State Dipole Moment of Solute

Dana Ortansa Dorohoi、Dorina Creangă、Dan Gheorghe Dimitriu 等 9 位作者2020-08-04Symmetry

The results obtained both in quantum chemical computation and in solvatochromic study of pyridinium di-carbethoxy methylid (PCCM) are correlated in order to estimate the electric dipole moment in the excited state of this molecule. This estimation is made by a variational method in the hypothesis that the molecular po…

Photochemistry and Electron Transfer StudiesSpectroscopy and Quantum Chemical StudiesPhotochromic and Fluorescence Chemistry

Synthesis of Superior Visible-Light-Driven Nanophotocatalyst Using High Surface Area TiO2 Nanoparticles Decorated with CuxO Particles

Nezar H. Khdary、Waleed S. Alkhuraiji、Tamil S. Sakthivel 等 8 位作者2020-08-04Catalysts

This work provides an alternate unique simple methodology to design and synthesize chemically modified nanophotocatalyst based on high surface area TiO2 nanoparticles that can be used efficiently for the photodegradation of organic pollutants under normal visible light rather than complicated UV irradiation. In this s…

TiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis TechniquesAdvanced Nanomaterials in Catalysis

Electromagnetic and Thermal Behavior of a Triple Redundant 9-Phase PMASynRM With Insulation Deterioration Fault

Yanwen Shi、Jiabin Wang、Rongguang Hu 等 4 位作者2020-08-04IEEE Transactions on Industry Applications

This article analyzes the electromagnetic and thermal behavior when insulation deteriorates, leading to short-circuit (SC) faults in a triple redundant 9-phase permanent magnet-assisted synchronous reluctance machine. It defines a critical insulation resistance at which the temperature in the faulted insulation region…

Multilevel Inverters and ConvertersElectric Motor Design and AnalysisMagnetic Properties and Applications

One-Step Preparation of MoS2/Graphene Nanosheets via Solid-State Pan-Milling for High Rate Lithium-Ion Batteries

Xingang Liu、Qingfu Wang、Jihai Zhang 等 5 位作者2020-08-04Industrial & Engineering Chemistry Research

A novel, high-yield, one-step approach was developed to prepare MoS 2 /graphene nanosheets (GNS) by exfoliating commercial bulk MoS 2 and graphite via solid-state pan-milling. We found that pan-milling could be used to co-exfoliate MoS 2 and graphite into few-layer MoS 2 /GNS heterostructures, which could improve the…

Advancements in Battery MaterialsGraphene research and applicationsMXene and MAX Phase Materials

Combustion Properties of Composite Propellants Based on Two Kinds of Polyether Binders and Different Oxidizers

Gong Li、Jianmin Li、Yuping Li 等 4 位作者2020-08-04Propellants Explosives Pyrotechnics

Abstract Two kinds of solid propellants based on propargyl‐terminated ethylene oxide‐tetrahydrofuran copolyether (PTPET) and ethylene oxide‐tetrahydrofuran copolyether (PET) were prepared with 1,3,5‐trinitro‐1,3,5‐triazacyclohexane (RDX), ammonium perchlorate (AP) and aluminum (Al), respectively. The order of burning…

Energetic Materials and CombustionFullerene Chemistry and ApplicationsFlame retardant materials and properties

Application of NMR Crystallography to Highly Disordered Templated Materials: Extensive Local Structural Disorder in the Gallophosphate GaPO-34A

Sharon E. Ashbrook、Daniel M. Dawson、Zhehong Gan 等 9 位作者2020-08-04Inorganic Chemistry

We present an NMR crystallographic investigation of two as-made forms of the recently characterized gallophosphate GaPO-34A, which has an unusual framework composition with a Ga:P ratio of 7:6 and contains both hydroxide and fluoride anions and either 1-methylimidazolium or pyridinium as the structure-directing agent.…

Crystal Structures and PropertiesAdvanced NMR Techniques and ApplicationsSolid-state spectroscopy and crystallography

Single-Molecule Junction of a Cationic Rh(III) Polyyne Molecular Wire

Yuya Tanaka、Kohei Ohmura、Shintaro Fujii 等 6 位作者2020-08-04Inorganic Chemistry

Single-molecule conductance studies on metal-containing inorganic and organometallic molecular wires are relatively less explored compared to those on organic molecular wires. Furthermore, conductance and transmission profiles of the metal-containing wires insensitive to the metal centers often hinder rational design…

Graphene research and applicationsQuantum and electron transport phenomenaMolecular Junctions and Nanostructures

Doping Titanium Dioxide with Palladiun for Enhancing thePhotocatalytic Decontamination and Mineralization of a Refractory Water Pollutant

María Harja、A.M. SESCU、Lidia Favier 等 4 位作者2020-08-04Revista de Chimie

The photocatalytic performance of a commercial TiO2 doped by incipient wet impregnation with palladium (sample named TiO2-Pd), was evaluated in the heterogeneous degradation process using as test molecule the clofibric acid (CA), a metabolism product of a drug used as blood lipid regulator. The catalyst was characteri…

TiO2 Photocatalysis and Solar CellsAdvanced Nanomaterials in Catalysis

Highly Branched Polydimethylacrylamide Copolymers as Functional Biomaterials

Joseph L. Mann、Abigail K. Grosskopf、Anton A. A. Smith 等 4 位作者2020-08-04Biomacromolecules

Controlled radical polymerization of vinyl monomers with multivinyl cross-linkers leads to the synthesis of highly branched polymers with controlled spatial density of functional chain ends. The resulting polymers synthesized in this manner have large dispersities resulting from a mixture of unreacted primary chains,…

Advanced Polymer Synthesis and CharacterizationPolymer Surface Interaction StudiesDendrimers and Hyperbranched Polymers