Results 101 to 110 of about 594,359 (210)

Quartz tuning fork : Thermometer, pressure- and viscometer for helium liquids

, 2007
Commercial quartz oscillators of the tuning-fork type with a resonant frequency of similar to 32 kHz have been investigated in helium liquids. The oscillators are found to have at best Q values in the range 10(5)-10(6), when measured in vacuum below 1.5 ...
Schmoranzer, D., Skrbek, L., Hosio, J., Clovecko, M., Eltsov, V. B., Blaauwgeers, R., de Graaf, R., Zmeev, D. E., Solntsev, R. E., Skyba, P., Blazkova, M., Krusius, M., Schoepe, W.   +12 more
core   +4 more sources

Review of Recent Advances in QEPAS-Based Trace Gas Sensing

Applied Sciences, 2018
Quartz-enhanced photoacoustic spectroscopy (QEPAS) is an improvement of the conventional microphone-based photoacoustic spectroscopy. In the QEPAS technique, a commercially available millimeter-sized piezoelectric element quartz tuning fork (QTF) is used
Yufei Ma
doaj   +1 more source

New constraints on the postglacial evolution of Lago Maggiore, Northern Italy

Journal of Quaternary Science, EarlyView.
ABSTRACT Lago Maggiore is situated in an overdeepened valley reach at the southern margin of the European Alps, and its thick sediment infill allows the reconstruction of the postglacial valley and lake evolution. We study here the sedimentary succession in the lower Ossola Valley, which is infilled by ~500 m of deposits. In a marginal position, a core
Lukas Gegg, Alexander Fülling, Andrew Greenwood, György Hetényi, F. Martin Hofmann, Giovanni Monegato, Jahir S. Rangel Herrera, Camille Schirra, Marco Venier, Othmar Müntener   +9 more
wiley   +1 more source

Rotational Anisotropy Raman Spectrometer for High‐Sensitivity Crystallographic Symmetry Analysis

Laser &Photonics Reviews, EarlyView.
We introduce rotational‐anisotropy Raman spectroscopy, an enhanced scheme that overcomes the limitations of traditional polarization‐resolved Raman techniques. This method reveals previously inaccessible phonon symmetries and resolves directional anisotropy of phonon‐polaritons in benchmark crystals, establishing a powerful new tool for characterizing ...
Di Cheng, Junxiang Li, Shizhuo Luo, Zehao Chen, Xinwei Li   +4 more
wiley   +1 more source

Functionalization of quartz tuning fork sensor with a thin layer of dopamine for enhanced sensitivity

Sensing and Bio-Sensing Research
Quartz tuning fork (QTF) sensors are widely used in various sensing applications due to their high sensitivity, stability, and accuracy. This study explores the functionalization of QTF sensors with a thin coating of polydopamine which can be used a ...
Abdullah N. Alodhayb, Abdulaziz K. Assaifan, Khalid E. Alzahrani, Hamad Albrithen, Danielle Dias, Matthew Schiiler, S. Mugo   +6 more
doaj   +1 more source

Recent advances in Joule‐heating synthesis of functional nanomaterials for photo and electrocatalysis

PhotoMat, EarlyView.
This paper presents a comprehensive overview of recent advancements in Joule‐heating synthesis of photo and electrocatalysts, emphasizing its benefits and applications. The objective is to offer an effective strategy for enhancing the diversity and performance of catalytic materials.
Jiaqi Li, Laiyu Luo, Siyu Wang, Haojie Song, Baojiang Jiang   +4 more
wiley   +1 more source

Effect of Gold Nanoparticle Radiosensitization on DNA Damage Using a Quartz Tuning Fork Sensor. [PDF]

Micromachines (Basel), 2023
Alanazi N, Alanazi R, Algawati M, Alzahrani K, Alodhayb AN.   +4 more
europepmc   +1 more source

Deciphering Branched Galactomannan Structures via Multistage Ion Mobility MS and MSn Fragmentation (Multistage IMSn)

Rapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Hemicelluloses are abundant carbohydrate components in plant cell walls. They play a crucial structural role in binding cellulose microfibrils, in addition to other biological functions. Their high structural variability directly influences their biological properties, making it important to establish a structure–function ...
Rania Benazza, Mathieu Fanuel, Hélène Rogniaux, David Ropartz   +3 more
wiley   +1 more source

High-Sensitivity Dynamic Detection of Dissolved Acetylene in Transformer Oil Based on High-Power Quartz-Enhanced Photoacoustic Spectroscopy Sensing System

Photonics
To enable the highly sensitive detection of acetylene (C2H2) dissolved in transformer oil, a high-power quartz-enhanced photoacoustic spectroscopy (QEPAS) sensing system is proposed.
Yuxiang Wu, Tiehua Ma, Chenhua Liu, Yashan Fan, Shuai Shi, Songjie Guo, Yu Wang, Xiangjun Xu, Guqing Guo, Xuanbing Qiu, Zhijin Shang, Chuanliang Li   +11 more
doaj   +1 more source

Construction optimization and functional applications of fluorescent nanodiamonds

Responsive Materials, EarlyView.
This review summarizes synthesis, surface modification and optical properties of fluorescent nanodiamonds. Their advances in quantum sensing, single‐photon emission and biomedicine are discussed, and existing challenges and future directions are presented.
Yunpeng Yang, Sen Zhang, Chao Chen, Wensi Yang, Zuanquan Chen, Rui Fan, Linlin Liu, Benjian Liu, Kang Liu, Zhibo Zhang, Bing Dai, Jiaqi Zhu   +11 more
wiley   +1 more source