Results 61 to 70 of about 2,139 (219)

Enhancement of Characteristics of Field Asymmetric Ion Mobility Spectrometer with Laser Ionization for Detection of Explosives in Vapor Phase

Chemosensors, 2020
Ion mobility spectrometry instrumentation today is widespread in the area of transport security and counterterrorism. This method of detection of explosive substances is highly appreciated for the existence of portable detectors capable of detecting ...
Vitalii A. Kostarev, Gennadii E. Kotkovskii, Alexander A. Chistyakov, Artem E. Akmalov   +3 more
doaj   +1 more source

Dynamic Covalent Chemistry Enables Self‐Healing and Compatibilization in Polypropylene Composites

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A high‐performance polypropylene insulation material is created through dynamic covalent crosslinking. It achieves exceptional dielectric properties, autonomous self‐healing, and easy recycling, offering a sustainable solution for future HVDC transmission systems.
Hongzhe Zhang, Wenye Zhang, Wenjie Huang, Jun‐Wei Zha   +3 more
wiley   +1 more source

Electric Field Analysis on the Corona Discharge Phenomenon According to the Variable Air Space between the Ionizer and Ground Current Collector

Applied System Innovation, 2023
In this paper, we present the optimized air space of the lightning protection rod (SK-AOR380) with the function of a charge transfer system (CTS). For evaluation of CTS in the laboratory setting, some studies have focused on the modification of the ...
Kyung-Hoon Jang, Sang-Won Seo, Dong-Jin Kim   +2 more
doaj   +1 more source

Ultra-Fast Polarity Switching, Non-Radioactive Drift Tube for the Miniaturization of Drift-Time Ion Mobility Spectrometer

Sensors, 2022
Drift-time ion mobility spectrometer (DT-IMS) is a promising technology for gas detection and analysis in the form of miniaturized instrument. Analytes may exist in the form of positively or negatively charged ions according to their chemical composition
Lingfeng Li, Hao Gu, Yanzhen Lv, Yunjing Zhang, Xingli He, Peng Li   +5 more
doaj   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Desenvolvimento e aplicação de reator de plasma frio na degradação do corante azul de metileno em meio aquoso [PDF]

, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaNa presente tese, um reator de plasma frio de descargas elétricas tipo ponta-plano foi construído.
Benetoli, Luís Otávio de Brito
core  

Dual-drift Tube Ion Mobility Spectrometry Based on Corona Discharge Ionization Source

Zhipu Xuebao
Ion mobility spectrometry (IMS) is a trace detection technique operating at atmospheric pressure. It is widely utilized in various fields, such as explosives and drug detection, chemical warfare agent detection, and biomedical applications, due to its ...
Xu ZHANG, Yu SONG, Yuan-jiang LUO, Wan-jun LI, Ling-wen KONG, Lei XIA, Ya-wei LIU, Cheng-yin SHEN, Chao-qun HUANG, Yan-nan CHU   +9 more
doaj   +1 more source

Corona Discharge in Microwave Devices: A Comparison of Ionization Rate Models [PDF]

Microwave Review, 2010
In this paper we compare the predicted Corona breakdown power threshold obtained by different ionization rate models for an infinite parallel-plate waveguide. We point out the lack of a unanimous model of the ionization rate for RF fields and study the differences in the current models.
Sorolla Eden, Mattes Michael
openaire   +1 more source

Electrospun conducting polymers: recent trends and the transition towards a sustainable future

Polymer International, EarlyView.
This review discusses the electrospinning of conducting polymers, detailing procedures, fibrous morphologies, improved properties, applications in electronics, and challenges, while outlining future directions for nanofibre‐based devices in various fields.
Xenofon Karagiorgis, Sofia Sandhu, Peter J. Skabara, Ravinder Dahiya   +3 more
wiley   +1 more source

Multi-scale two-domain numerical modeling of stationary positive DC corona discharge/drift-region coupling [PDF]

, 2021
Corona discharge modeling mostly relies on two, mostly distinct, approaches: high-fidelity, numerically challenging, unsteady simulations having high-computational cost or low-fidelity simulations based on empirical assumptions such as constant electric ...
Plouraboué, Franck, Monrolin, Nicolas
core   +1 more source