Results 91 to 100 of about 48,105 (319)

Studies on the preparation of rare-earth-doped alkaline borosilicate glass and its optical properties

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This paper investigated the preparation of rare-earth doped alkali borosilicate glass that exhibited high ultraviolet transmittance and excellent photoluminescence properties.
Qimin Liu, Min Qian, Yaosong Huang
doaj   +1 more source

The Sun in Time: Age, Rotation, and Magnetic Activity of the Sun and Solar-type Stars and Effects on Hosted Planets

, 2009
Multi-wavelength studies of solar analogs (G0-5 V stars) with ages from ~50 Myr to 9 Gyr have been carried out as part of the "Sun in Time" program for nearly 20 yrs.
Edward F. Guinan, Feltzing, Grießmeier, Kulikov, Messina, Scott G. Engle   +5 more
core   +1 more source

ZIF‐67‐Confined Pd Single‐Atom Catalysts Implanted Into Polydopamine‐Modified Bamboo Microchannels for Robust Continuous‐Flow Hydrogenation

Advanced Science, EarlyView.
The report presents a facile room‐temperature method to stabilize Pd single‐atom catalysts within ZIF‐67 crystals during their formation. Despite an ultralow Pd loading (0.0014 wt%), the catalytic microreactor, featuring atomically dispersed Pd‐N4 sites in ZIF‐67, demonstrates superior robustness and maximized Pd utilization, significantly ...
Sisi Yao, Jiawei Han, Wenjun Zhang, Dengkang Guo, Shenjie Han, Yun Lu, Jingpeng Li   +6 more
wiley   +1 more source

Photocatalytically Activated Cu‐N1S3 Single‐Atom Nanozyme: Enhancing Enzyme Activities and Antibacterial Synergy for Highly Efficient Fruit Preservation

Advanced Science, EarlyView.
This study presents S‐coordinated Cu single‐atom nanozymes (Cu/CNS) fabricated via mild photocatalytic self‐assembly strategy. The nanozyme exhibits exceptional multi‐enzyme activity and near‐perfect antimicrobial efficacy. Incorporated into chitosan‐gelatin film, it enables pH‐responsive, broad‐spectrum fruit preservation, more than doubling the shelf‐
Chuanlong Men, Chenchen Wu, Lei Wang, Shengjie Gao, Yu Mao, Wei Liu, Changhong Liu, Lei Zheng   +7 more
wiley   +1 more source

The Near-IR-Optical-UV Emission of BL Lacertae Objects

, 1994
Near--infrared, optical and ultraviolet quasi--simultaneous observations of 11 BL Lacertae objects are reported. For all but one source the dereddened spectral flux distribution in the $8\cdot10^{13}-2\cdot10^{15}$ Hz frequency range can be described by ...
Falomo, R., Pian, E., Scarpa, R., Treves, A.   +3 more
core   +2 more sources

Mechanisms of Direct Electron Transfer Governed by Redox‐Active Conductive Carrier with Superior Wettability in Anaerobic Biofilms

Advanced Science, EarlyView.
A redox‐active conductive carrier of tannic acid‐modified iron‐biochar with superior wettability is demonstrated to regulate direct electron transfer at the anaerobic biofilm‐carrier interface by enhancing the cytochrome c‐mediated pathway. For the first time, integrated evidence from spectroscopy, electrochemical analyses, and metatranscriptomics ...
Junli Tian, Xiaoyuan Zhang, Lulu Xing, Bin Ji, Jinfeng Lu, Yu Liu   +5 more
wiley   +1 more source

Rapid detection of 3,4-dihydroxyphenylethanol by ultraviolet spectrophotometry based on Fe3+ coordination modulation

Shipin yu jixie
ObjectiveTo address the limitation of spectral overlap interference in the rapid detection of 3,4-dihydroxyphenylethanol (DHPET) within the 4-hydroxyphenethyl alcohol (HPET) catalytic system using traditional ultraviolet spectrophotometry.MethodsTo ...
ZHOU Junhan, ZHENG Jianxian, SUN Lu
doaj   +1 more source

Studies of hot B subdwarfs. Part 2: Energy distributions of three bright sdB/sdOB stars in the 950-5500 angstrom range [PDF]

Voyager ultraviolet spectrometer observations of the subdwarf B or OB stars HD 205805, UV 1758+36 and Feige 66 are presented. All three objects display the H I Layman series in absorption.
Fontaine, G., Holberg, J. B., Lamontagne, R., Veilleux, S., Wesemael, F.   +4 more
core   +1 more source

Recent Development and Validation of Bisacodyl Analysis Method in Tablet with Absorbance Method and Area under Curves Method in Ultraviolet Spectrophotometry

, 2021
Harrizul Rivai, Nia Pratama, Ridho Asra
openalex   +2 more sources

Targeting the GPX4–FUNDC1 Interaction with Magnesium Lithospermate B Attenuates Sepsis‐Associated Lung Injury

Advanced Science, EarlyView.
The diagram depicts the endothelial‐protective mechanism of magnesium lithospermate B (MLB) in sepsis‐associated lung injury. MLB binds GPX4 at Gly79, disrupts its interaction with FUNDC1, prevents mitophagy‐mediated GPX4 degradation, restores mitophagic flux, reduces ROS, and limits ferroptosis.
Zhixi Li, Chang Liu, Zhaoxue Ma, Dongyou Zheng, Renkai Wang, Yongjing Yu, Guangmin Chen, Chenglong Li, Yue Bu, Hang Cao, Bing Zhang   +10 more
wiley   +1 more source