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Hierarchical Ordered Mesoporous SrBiTiO Microflowers with Rich Oxygen Vacancies In Situ Assembled by Nanosheets for Piezo-Photocatalysis.
Inorg Chem
November 2024
School of Materials and New Energy, Chongqing University of Science and Technology, Chongqing 401331, P. R. China.
The Aurivillius phase layered perovskite ferroelectric material SrBiTiO (SBTO) exhibits spontaneous polarization and piezoelectric properties, which confer significant potential for piezo-photocatalysis. Its ability to enhance electron-hole separation while providing excellent fatigue resistance positions it as a promising candidate in this field. Defects were introduced to improve the structural polarization and photoelectrochemical properties of SBTO.
View Article and Find Full Text PDFDirect multiple monochromatic x-ray imaging with a pinhole array and a laterally graded multilayer mirror.
Rev Sci Instrum
June 2024
MOE Key Laboratory of Advanced Micro-Structured Materials, No. 1239 Siping Road, 200092 Shanghai, China.
Multiple monochromatic x-ray imaging (MMI) is a technique for diagnosing the emission spectra of tracer elements in laser-driven inertial confinement fusion experiments. This study proposes an MMI method that combines a simple pinhole array with a laterally graded multilayer mirror. The method directly obtains multiple monochromatic x-ray images by regulating the multilayer thickness in different mirror positions to compensate for the energy-broadening effect.
View Article and Find Full Text PDFAge-related differences in auditory spatial processing revealed by acoustic change complex.
Front Hum Neurosci
April 2024
Department of Otolaryngology-Head and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
Objectives: The auditory spatial processing abilities mature throughout childhood and degenerate in older adults. This study aimed to compare the differences in onset cortical auditory evoked potentials (CAEPs) and location-evoked acoustic change complex (ACC) responses among children, adults, and the elderly and to investigate the impact of aging and development on ACC responses.
Design: One hundred and seventeen people were recruited in the study, including 57 typically-developed children, 30 adults, and 30 elderlies.
Fabrication and characterization of smart titanium alloy bolt based on high-frequency piezoelectric thin-film.
Rev Sci Instrum
March 2024
Sichuan Gaolu Traffic Information Engineering Co., Ltd., Chengdu 610095, China.
We reported here on the fabrication and characterization of a smart titanium alloy bolt based on a high-frequency piezoelectric thin-film sensor. The thin-film sensor was directly deposited on a titanium alloy bolt head with radio frequency magnetron sputtering and characterized by a scanning electron microscope and an atomic force microscope. The ultrasonic characteristics of the smart bolt, which include a pure and broad frequency spectrum peaked at 14.
View Article and Find Full Text PDFTheoretical design of a solid scintillation detector for tritium surface contamination measurement based on CaF(Eu) sheet and self-coincidence technology of MCP-PMT.
Appl Radiat Isot
April 2024
Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China.
Measurement of tritium surface contamination is important for tritium related facilities, especially for fusion devices. A novel detector has been designed for tritium surface contamination measurements based on CaF(Eu) sheet and Microchannel plate photomultiplier tube (MCP-PMT). Self-coincidence technology has been introduced to obtain lower detection limit by diminishing the background noise caused by γ-rays and hot electrons.
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