49 Result(s)
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Article
Mineralogical properties and co-sintering characteristics of fluxed iron ore with magnetite concentrates
To investigate the feasibility of co-sintering of fluxed iron ore with magnetite concentrates, the mineralogical properties of a novel fluxed iron ore were studied using particle size analysis, microscopic mor...
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Article
Endogenous formaldehyde responsive fluorescent probe for bioimaging
Formaldehyde (FA), as the simplest endogenous carbonyl molecule, participates in many biosynthesis and metabolism in living organisms, such as nucleotides and adenosine triphosphate (ATP). FA concentrations ar...
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Article
A review of surface roughness measurements based on laser speckle method
Surface roughness is commonly used to characterize material microstructure during processing, and accurate measurement of surface roughness is the premise and foundation of machining. Therefore, online non-des...
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Article
The influence of adding niobium and vanadium on hydrogen diffusion in 22MnB5 hot stam** steel
Adding alloying elements is always considered as an effective method to enhance the resistance against hydrogen embrittlement in steels. Nb and V were added into 22MnB5 hot stam** steel, and then their influ...
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Article
Effect of extrusion temperature on microstructure and tensile properties of Mg–Gd–Er–Zn–Zr alloy containing LPSO phase
The Mg–1Gd–0.75Er–0.5Zn–0.18Zr (at.%) alloy with long-period stacking ordered (LPSO) phase was prepared by metal mold casting and hot extrusion. The extruded samples had a typical bimodal microstructure. The d...
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Article
Cupric ion decorated ammonium polyphosphate as an effective flame retardant for thermoplastic polyurethane
Inspired by the significant synergistic charring effect and catalytic graphitizing effect of metal ion, cupric ion decorated ammonium polyphosphate (APP@Cu) was prepared to improve the fire safety of thermopla...
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Article
Stable 4.5 V LiCoO2 cathode material enabled by surface manganese oxides nanoshell
Charging the LiCoO2 (LCO) cathode to a higher voltage, for example 4.5 V compared to the commonly used 4.2 V, is now intensively pursued so as to achieve a higher specific capacity. However, it suffers severe sur...
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Article
Numerical and Experimental Parametric Study on the Mechanism of Web-War** in Chain-Die Forming with Variable Cross-Section
Chain-die forming is a new sheet metal forming process, which can be used to produce complex and variable cross-section UHSS automotive structural parts. In this paper, the web-war** and the longitudinal str...
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Article
Synthesis and antibacterial activity of indole 3-substituted-[1,2,4]triazole derivatives
In this work, a series of novel indole 3-substituted-[1,2,4]triazole derivatives was designed and synthesized, and their structures were characterized by 1H, 13C NMR, high-resolution mass spectrometry, and single...
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Article
Abnormal actuating performance of MXene/polyimide electrochemical actuator in neutral aqueous electrolytes
MXene exhibits great potential in electrochemical actuators which can convert electrical energy to mechanical motions for applications in smart robots or drug delivery systems, etc. However, the detailed actua...
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Article
Toroidal dipole-modulated dipole-dipole double-resonance in colloidal gold rod-cup nanocrystals for improved SERS and second-harmonic generation
Colloidal metal nanocrystals (NCs) show great potential in plasmon-enhanced spectroscopy owing to their attractive and structure-depended plasmonic properties. Herein, unique Au rod-cup NCs, where Au nanocups ...
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Article
Open AccessResonant tunneling in disordered borophene nanoribbons with line defects
Recently, borophene has attracted extensive interest as the wonder material, showing that line defects (LDs) occur widely at the interface between ...
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Article
Open AccessMid-air gestures for in-vehicle media player: elicitation, segmentation, recognition, and eye-tracking testing
There was a problem of great distraction in traditional touch interactive operation of in-vehicle information interface, but the application of gesture recognition technology on in-vehicle system improved this...
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Article
Synthesis, characterization and catalytic performance of magnetic La0.7Sr0.3MnO3/α-Fe2O3 with p–n heterojunction structure
In this study, a solar-driven photocatalyst La0.7Sr0.3MnO3/α-Fe2O3 (20%) with p–n heterojunction structure was synthesized and characterized. The magnetic, photocatalytic properties, Fenton-like action and the sy...
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Article
Novel ReSe semiconductor designed by structure prediction and phase diagram calculation
Non-stoichiometric transition metal chalcogenides often have unexpectedly good semiconducting properties. In this paper, we focus on the seeking of potential semiconducting material in the ReSe system. The glo...
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Article
Growth of AgBr/Ag3PO4 Heterojunction on Chitosan Fibers for Degrading Organic Pollutants
Using Fiber as the based material for photocatalyst particles is favorable for their recovery, thereby avoiding the photocatalyst particles cause secondary pollution to water environment. In this work, the AgB...
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Article
Effect of volume fraction and mechanical stability of austenite on ductility of medium Mn steel
A hot-rolled medium Mn (0.2C5Mn) steel is annealed at 650 °C to produce an ultrafine-grained duplex microstructure with different austenite volume fractions by austenite reverted transformation (ART) annealing...
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Article
BaTh2Fe4As4(N0.7O0.3)2: An iron-based superconductor stabilized by inter-block-layer charge transfer
本文基于结构设计、 采用高温固相反应, 首次合成了电子掺杂“12442”型超导体BaTh2Fe4As4(N0.7O0.3)2. 研究发现, “BaFe2As2”和 “ThFeAsN0.7O0.3”块层间的电荷转移是稳定该目标化合物的必要条件. 霍尔测量证实该化合物主要为电子型导电. 电阻、 直流磁化率和比热测量的综合结果表明, 样品在22 K 呈现体超导电性.
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Article
Engineering Ni3+ inside nickel selenide as efficient bifunctional oxygen electrocatalysts for Zn–air batteries
Develo** a high-efficienct, low-cost and stable non-noble-metal-based bifunctional electrocatalyst for the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) as oxygen electrode material in ...
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Article
Improving performance of thermally activated delayed fluorescence emitter by extending its LUMO distribution
An optimized compound 9-(9,9-dimethylacridin-10(9H)-yl)-6H-benzo[c]ch-romen-6-one (MAB) was designed and synthesized based on our previously reported TADF emitter 6-(9,9-dimethylacridin-10(9H)-yl)-3-methyl-1H-...
