Article
Physics, Fluids & Plasmas
A. Saifutdinov
Summary: In this study, various modes of direct current discharges in argon at atmospheric pressure were investigated based on a unified model for describing the gas discharge gap and electrodes in 2D geometry. Numerical calculations were conducted to reveal the influence of electrode cooling conditions on the current-voltage characteristic of the discharge, including the transition from normal glow to arc discharge and the occurrence of abnormal glow mode. Different forms of arc discharge, either with diffuse or contracted current spot, were observed depending on the cooling conditions. Low-current mode exhibited current and voltage oscillations during the transition from Townsend to normal glow discharge.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Xiaoxu Peng, Zheng Wang
Summary: The article provides an overview of the development of solution electrode glow discharge (SEGD) in various fields and discusses its discharge mechanism. SEGD has unique advantages for optical emission spectrometry and mass spectrometry, and it has broad research potential in biology and medicine, material synthesis, electrochemistry, etc.
CHINESE CHEMICAL LETTERS
(2022)
Article
Materials Science, Ceramics
Y. H. Wang, F. Guo, H. Ren, S. Y. Hu, Y. J. Chen, Y. H. Zhao, F. Gong, Z. W. Xie
Summary: This study utilized the novel techniques of gradient bias voltage (GBV) and arc-enhanced glow discharge (AEGD) to refine the structure and improve the wear resistance of TiN coatings synthesized by arc ion plating (AIP). The results showed that the coatings without the GBV + AEGD technique exhibited a coarse surface and loose texture, while the coatings with the technique displayed a smoother surface and denser growth texture, leading to improved fracture toughness and outstanding wear resistance.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Fluids & Plasmas
I Tsonev, J. Boothroyd, St Kolev, A. Bogaerts
Summary: This study developed a 2D axisymmetric model to investigate the influence of the two cathode emission mechanisms on the cathode region and the positive column in a plasma discharge in flowing nitrogen gas. The results show that the electron emission mechanism greatly affects the size and temperature of the cathode region, but has no significant impact on the discharge column at atmospheric pressure. Additionally, it was found that the discharge contraction is enhanced with increasing flow velocity due to increased convective heat loss.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Article
Physics, Applied
Korentin Geraud, Flavien Valensi, Ahmad Hamdan
Summary: This study assesses the effect of an external magnetic field on the electrical characteristics and electrode erosion of spark discharges in water. The results demonstrate that the magnetic field significantly affects the discharge electrical characteristics and electrode erosion, and the influence of different electrode materials on discharge varies.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Thermodynamics
Samuel J. Kazmouz, Riccardo Scarcelli, Matthew Bresler, Eric Blash, Ken Hardman
Summary: Reducing emissions through engine efficiency improvements is a priority for automakers, who have turned to unconventional engine operation. This paper focuses on the importance of reliable and accurate spark ignition models in reducing cyclic indicated mean effective pressure variability and increasing engine efficiency. The study adds multiple sub-models to simulate electrical discharge and spark channel elongation, providing experimental and simulation results to validate the model's accuracy.
COMBUSTION AND FLAME
(2023)
Article
Materials Science, Coatings & Films
Y. H. Wang, Z. B. Yang, S. Y. Hu, Y. H. Zhao, H. Ren, F. Gong, Z. W. Xie
Summary: A novel tandem technique involving gradient bias voltage and arc enhanced glow discharge was used to modify the growth structure, wear, and corrosion properties of TiN coatings. The technique significantly improved the density and microstructure of the coatings, leading to enhanced corrosion and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Thermodynamics
Huimin Wu, Zhaowen Wang, Chaohui Liu, Jingxing Xu, Xiaobei Cheng, Jyh-Yuan Chen, Xinhua Zhang
Summary: Microwave-assisted spark ignition (MAI) is a potential ignition technique that efficiently enhances ignition by absorbing microwave energy. This paper achieves MAI by radiating a single 0.2 ms microwave pulse after the initial spark ignition and investigates the ignition performance and absorbed energy in different absorption patterns. The results show that MAI enhancement can be categorized into glow enhancement and incandescence enhancement, with the latter having a greater energy absorption efficiency and more significant ignition enhancement. The effects of gas parameters on these enhancements are also studied.
COMBUSTION AND FLAME
(2023)
Article
Chemistry, Multidisciplinary
Ivan Vasilievich Bodrikov, Anna Gennadevna Ivanova, Alexander Leonidovich Vasiliev, Evgeny Yurievich Titov, Dmitry Yurievich Titov, Anton Igorevich Serov
Summary: The study revealed the correlation between the morphology and other characteristics of nanostructures obtained in the induced transformation of benzene by low-voltage pulsed discharges, as well as the different carbon nanostructures formed at different energies.
Article
Environmental Sciences
Milad Rasouli, Maryam Amini, Saeed Khandan, Mahmood Ghoranneviss, Hamed Nikmaram, Kostya (Ken) Ostrikov
Summary: This study evaluates the effectiveness of arc and pulsed spark plasma discharges in inactivating pathogenic microorganisms. The results show that these discharge systems are effective in inactivating pathogenic microorganisms, with higher effectiveness observed on bacterial strains. Moreover, the pulsed spark discharge treatment enhances the reduction of pathogenic cells more than the arc discharge treatment, likely due to the generation of discharge streamers on the water surface.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Physics, Applied
Cong Wang, Qiang Fu, Zhengshi Chang, Guanjun Zhang
Summary: This study focused on the discharge and conversion of carbon dioxide under simulated Martian atmospheric pressure. The results showed that glow discharge was the discharge mode, with increasing density of discharge products and variations in vibrational states. Reaction rates were mainly influenced by vibrational excitation, electronic excitation, and vibrational relaxation reactions.
PLASMA PROCESSES AND POLYMERS
(2021)
Article
Engineering, Chemical
Nora Alina Ruprecht, Annette Koehler, Reinhard Kohlus
Summary: The study found that air mass flow rate and particle size have a significant impact on the residence time distribution during spray drying. At lower air flow rates, increasing particle size results in a decrease in mean particle residence time.
Article
Biochemistry & Molecular Biology
Denis Kravtsov, Anna Gubal, Victoria Chuchina, Natalya Ivanenko, Nikolay Solovyev, Alexander Stroganov, Han Jin, Alexander Ganeev
Summary: This study investigated the effect of discharge conditions on VOC fragmentation using a combination of pulsed glow discharge and time-of-flight mass spectrometer. The use of discharge afterglow significantly reduced VOC fragmentation and provided low detection limits.
Article
Physics, Applied
Xiaonan Wang, Jing Ma, Dingxin Liu, Qing Ma, Huan Yuan, Aijun Yang, Mingzhe Rong, Xiaohua Wang
Summary: C5F10O shows promise as a replacement for SF6 in switchgears due to its high breakdown field strength and low global warming potential potential, but its chemical characteristics and discharge products are not well understood, hindering evaluation of its insulating capability and the development of gas sensors. The use of electron attachment mass spectrometry to detect the decomposed products of C5F10O revealed potential indicator species for monitoring insulation deterioration in switchgears.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Biochemistry & Molecular Biology
Elena S. Dzlieva, Lev G. D'yachkov, Leontiy A. Novikov, Sergey I. Pavlov, Viktor Y. Karasev
Summary: This study investigates the dynamics of dust particles in a stratified glow discharge in inhomogeneous magnetic fields, finding that the dust structures rotate when a magnetic field is applied. The structures near the end of the solenoid are where the inhomogeneous magnetic field region starts, and the dusty structure can deform with an increase in magnetic field strength. The rotation of dusty structures in inhomogeneous magnetic fields has unique characteristics compared to rotation in uniform fields, with detailed mechanisms and velocity estimation explored.
Article
Nanoscience & Nanotechnology
Jicheng Feng, Esther Hontanon, Maria Blanes, Joerg Meyer, Xiaoai Guo, Laura Santos, Laura Paltrinieri, Nabil Ramlawi, Louis C. P. M. de Smet, Hermann Nirschl, Frank Einar Kruis, Andreas Schmidt-Ott, George Biskos
ACS APPLIED MATERIALS & INTERFACES
(2016)
Article
Chemistry, Multidisciplinary
Matthias Stein, Frank Einar Kruis
JOURNAL OF NANOPARTICLE RESEARCH
(2016)
Article
Polymer Science
Xiaoai Guo, Esther Laryea, Manfred Wilhelm, Burkhard Luy, Hermann Nirschl, Gisela Guthausen
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2017)
Article
Chemistry, Physical
Jicheng Feng, Xiaoai Guo, Nabil Ramlawi, Tobias V. Pfeiffer, Ruben Geutjens, Shibabrata Basak, Hermann Nirschl, George Biskos, Henny W. Zandbergen, Andreas Schmidt-Ott
JOURNAL OF MATERIALS CHEMISTRY A
(2016)
Article
Chemistry, Multidisciplinary
Alexander Gutsche, Nico Dingenouts, Xiaoai Guo, Manuel Meier, Hermann Nirschl
JOURNAL OF APPLIED CRYSTALLOGRAPHY
(2016)
Article
Chemistry, Multidisciplinary
Alexander Gutsche, Manuel Meier, Xiaoai Guo, Julian Ungerer, Hermann Nirschl
JOURNAL OF NANOPARTICLE RESEARCH
(2017)
Article
Nanoscience & Nanotechnology
Chaomin Wang, Xiaoai Guo, Yulia Ivanisenko, Sunkulp Goel, Hermann Nirschl, Herbert Gleiter, Horst Hahn
SCRIPTA MATERIALIA
(2017)
Article
Nanoscience & Nanotechnology
Jicheng Feng, Ruben Geutjens, Nguyen V. Thang, Junjie Li, Xiaoai Guo, Albert Keri, Shibabrata Basak, Gabor Galbacs, George Biskos, Hermann Nirschl, Henny W. Zandbergen, Ekkes Bruck, Andreas Schmidt-Ott
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Engineering, Chemical
Hermann Nirschl, Xiaoai Guo
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2018)
Article
Polymer Science
Xiaoai Guo, Solveig Theissen, Jan Claussen, Viet Hildebrand, Juliane Kamphus, Manfred Wilhelm, Burkhard Luy, Gisela Guthausen
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2018)
Correction
Nanoscience & Nanotechnology
Chaomin Wang, Xiaoai Guo, Yulia Ivanisenko, Sunkulp Goel, Hermann Nirschl, Herbert Gleiter, Horst Hahn
SCRIPTA MATERIALIA
(2018)
Article
Polymer Science
Xiaoai Guo, Solveig Theissen, Jan Claussen, Viet Hildebrand, Juliane Kamphus, Manfred Wilhelm, Burkhard Luy, Gisela Guthausen
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2019)
Article
Polymer Science
Xiaoai Guo, Christoph Pfeifer, Manfred Wilhelm, Burkhard Luy, Gisela Guthausen
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2019)
Article
Polymer Science
Xiaoai Guo, Katharina S. Wetzel, Susanne C. Solleder, Sebastian Spann, Michael A. R. Meier, Manfred Wilhelm, Burkhard Luy, Gisela Guthausen
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2019)
Article
Food Science & Technology
Xiaoai Guo, Kemal Aganovic, Ute Bindrich, Andreas Juadjur, Christian Hertel, Edward Ebert, Johannes Grosse Macke, Christoph Geil, Volker Heinz
Summary: This study demonstrates the technical feasibility of combining large-scale screw pressing with an industrial-scale pulsed electric field system for increased yields of plant juice and crude protein from perennial ryegrass and white clover blends. The use of a disk separator allows for continuous separation of raw juice and protein precipitation, resulting in a 25% increase in juice yield and a 31% increase in crude protein yield. The crude protein content reaches 37.3 g/100 g dry matter. In addition, the precipitated sediment contains essential minerals and shows promise for future food applications.