Results 81 to 90 of about 73,480 (247)
Driving Micro‐Objects Using Optical Force due to Fluorescence Emission From Molecules
Advanced Optical Materials, EarlyView.Emission of fluorescence from a micro‐object in a specific direction is expected to generate an optical force driving the object in the opposite direction of the emission, like a rocket. To demonstrate this ‘photon‐driven micro‐rocket’, we prepared dye‐doped polymer micro‐object (PMO) one surface of which was covered with metallic film; the PMO ...
Syoji Ito +5 more
wiley +1 more source
Journal of Materials Research and TechnologyThe submerged arc welding (SAW) process is complex because multi-phase reactions occur simultaneously across a large temperature interval from 2500 °C in the arc cavity, down to the weld pool liquidus temperare at the slag-weld pool interface.
Theresa Coetsee +1 more
doaj
Energy-carbon comprehensive efficiency evaluation of hydrogen metallurgy system considering low-temperature waste heat recovery [PDF]
arXivTo address the lack of energy-carbon efficiency evaluation and the underutilization of low-temperature waste heat in traditional direct reduction iron (DRI) production, this paper proposes a novel zero-carbon hydrogen metallurgy system that integrates the recovery and utilization of low-temperature and high-temperature waste heat, internal energy, and ...
arxiv
Advanced Sustainable Systems, EarlyView.A novel MBOdCN S‐scheme heterojunction photocatalyst is fabricated using pristine Mg‐Bi2O3 and grayish g‐C3N4, where dynamic dual charge migration paths occur to accelerate exciton dissociation. This composite catalyst realizes high degradation efficiency of up to 99.56% of oxytetracycline (OTC) removal under optimized conditions. The material exhibits
Potlako J. Mafa +11 more
wiley +1 more source
Advanced Sustainable Systems, EarlyView.This study compares the electrochemical performance of high‐entropy alloys (HEA) and oxides (HEO) as supercapacitor electrodes. HEO demonstrates superior energy and power density due to its capacitive behavior and surface redox reactions, while HEA relies on diffusion‐controlled processes.
Öyküm Başgöz +3 more
wiley +1 more source
Self‐Induced A‐B‐A Structure Enables Efficient Wide‐Bandgap Perovskite Solar Cells and Tandems
Advanced Science, EarlyView.DMFP penetrates to the bottom of the perovskite, forming an A‐B‐A sandwich structure with BzMIM Br, leading to strong interactions with the perovskite. In the vertical direction, utilizing multisite coordination with Pb ions forms internal molecular bridges, which not only improves crystallographic orientation but also suppresses halide phase ...
Xixi Yu +10 more
wiley +1 more source
Physics and measurements of magnetic materials [PDF]
CERN-2010-004, pp. 39-63, 2011 Magnetic materials, both hard and soft, are used extensively in several components of particle accelerators. Magnetically soft iron-nickel alloys are used as shields for the vacuum chambers of accelerator injection and extraction septa; Fe-based material is widely employed for cores of accelerator and experiment magnets; soft spinel ferrites are used ...
arxiv
Advanced Science, EarlyView.In summary, a universal EGaIn‐based DIW printing strategy is presented for fabricating wideband stretchable antennas. The printed antenna achieves an operating bandwidth of 3.75–8.21 GHz (fractional bandwidth: 75%), a peak gain of 1.8 dB and a radiation efficiency of 76.6%, surpassing state‐of‐the‐art stretchable antennas. More importantly, the antenna
Xiangyu Guo +6 more
wiley +1 more source
Development of Wire + Arc Additive Manufacturing for the production of large-scale unalloyed tungsten components [PDF]
arXiv, 2019 The manufacturing of refractory-metals components presents some limitations induced by the materials characteristic low-temperature brittleness and high susceptibility to oxidation. Powder metallurgy is typically the manufacturing process of choice. Recently, Wire + Arc Additive Manufacturing has proven capable to produce fully-dense large-scale metal ...
arxiv