Contributions to Plasma Physics最新文献_第4页

Impact of Nonthermal Plasma on Human Metapneumovirus (HMPV): Mechanisms of Viral Inactivation and Replication Inhibition 非热血浆对人偏肺病毒（HMPV）的影响：病毒灭活和复制抑制机制

IF 1.5 4区物理与天体物理

Contributions to Plasma Physics Pub Date : 2025-07-23 DOI: 10.1002/ctpp.70044

Sohail Mumtaz, Juie Nahushkumar Rana

{"title":"Impact of Nonthermal Plasma on Human Metapneumovirus (HMPV): Mechanisms of Viral Inactivation and Replication Inhibition","authors":"Sohail Mumtaz, Juie Nahushkumar Rana","doi":"10.1002/ctpp.70044","DOIUrl":"https://doi.org/10.1002/ctpp.70044","url":null,"abstract":"<div>\u0000 \u0000 <p>Human Metapneumovirus (HMPV) causes severe respiratory infections, especially in young children, the elderly, and the immunocompromised. Despite its clinical application, effective therapeutic opportunities for HMPV are limited. Currently, no vaccines or specific antiviral therapies are available to prevent or treat HMPV infections, highlighting the necessity to explore and discuss all possible treatment and prevention opportunities. Recently, nonthermal atmospheric pressure plasma (NAPP) has appeared as a promising technology for virus inactivation and inhibition of viral replication. This review discusses how NAPP can possibly inhibit HMPV at several stages of its lifecycle, including viral entry, replication, and host immune modulation, for the first time. While NAPP has shown efficacy against respiratory viruses such as influenza and SARS-CoV-2, its antiviral mechanisms for HMPV are extrapolated from these studies, as direct experimental evidence for HMPV inactivation is currently lacking. NAPP produces reactive nitrogen and oxygen species, UV radiation, and charged particles that damage HMPV surface proteins, hindering viral entry. It also causes oxidative stress that damages viral RNA and host cell machinery, impairing replication and protein synthesis. Additionally, the plasma-treated liquid (PTL) activates the hosts' immune responses for virus clearance. The NAPP technology is an economically affordable and environmentally safe approach and could be useful in combating infectious diseases such as HMPV and its variants. This paper reviews the potential of NAPP as a novel approach to combat HMPV infections, highlighting the need for further research to confirm its efficacy and optimize its application for respiratory viral infections.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"66 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146007787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid PIC/MC-CVAE Framework for Self-Bias Voltage Prediction and Plasma-Circuit Coupling in Capacitively Coupled Plasma 电容耦合等离子体中自偏置电压预测和等离子体电路耦合的混合PIC/MC-CVAE框架

IF 1.5 4区物理与天体物理

Contributions to Plasma Physics Pub Date : 2025-07-23 DOI: 10.1002/ctpp.70042

Suxin Bao, Jiyang Liu, Fujun Zhu, Gongzeng Liu, Haodong Zhang, Hao Xu, Yan Xing, Zaifa Zhou

{"title":"Hybrid PIC/MC-CVAE Framework for Self-Bias Voltage Prediction and Plasma-Circuit Coupling in Capacitively Coupled Plasma","authors":"Suxin Bao, Jiyang Liu, Fujun Zhu, Gongzeng Liu, Haodong Zhang, Hao Xu, Yan Xing, Zaifa Zhou","doi":"10.1002/ctpp.70042","DOIUrl":"https://doi.org/10.1002/ctpp.70042","url":null,"abstract":"<div>\u0000 \u0000 <p>We developed a traditional computational framework coupling time-dependent external circuit equations with a 2D3V axisymmetric Particle-in-Cell/Monte Carlo (PIC/MC) model. By solving circuit equations at each time step, this framework establishes bidirectional feedback between plasma dynamics and self-bias voltage evolution. Moreover, the superposition of Laplace and Poisson solutions is introduced to avoid solving iteratively for the potential on the boundary, which demands extra Laplace solvers for the direct implicit scheme. To improve computational efficiency, a generative network, named Conditional Variational Autoencoder (CVAE), is implemented to predict self-bias voltage effects, achieving a remarkable 25,000× acceleration compared to the circuit solver while maintaining > 90% waveform fidelity. The grid-independent nature of the CVAE architecture enables parametric studies with arbitrary resolution and reverse-optimization targeting desired self-bias voltages and currents. Furthermore, a novel hybrid framework combining the PIC/MC model with the CVAE surrogate is proposed to enhance computational efficiency in plasma simulations. Numerical simulations of voltage-driven CCPs under varied gap conditions demonstrate the hybrid PIC/MC-CVAE model's capability to quantify self-bias effects, revealing their dependence on electrode configurations. This methodology successfully bridges plasma kinetics and macroscopic circuit behavior, providing an efficient and robust tool for optimizing CCP-based industrial processes.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"66 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146007786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Observation of Mode Transition in Chlorine Plasma Using Optical Emission Spectroscopy 用光学发射光谱法观察氯等离子体中的模式跃迁

IF 1.5 4区物理与天体物理

Contributions to Plasma Physics Pub Date : 2025-07-22 DOI: 10.1002/ctpp.70040

P. K. Saha, A. Mukherjee, Debanjali Roy, M. Chakraborty

{"title":"Observation of Mode Transition in Chlorine Plasma Using Optical Emission Spectroscopy","authors":"P. K. Saha, A. Mukherjee, Debanjali Roy, M. Chakraborty","doi":"10.1002/ctpp.70040","DOIUrl":"https://doi.org/10.1002/ctpp.70040","url":null,"abstract":"<div>\u0000 \u0000 <p>This manuscript studies the helicon discharge of chlorine (Cl<sub>2</sub>) when radio frequency (RF) power of 13.56 MHz is applied from 300 to 1500 W for two different magnetic fields (300 and 400 G) and three different working pressures—7 × 10<sup>−4</sup>, 10<sup>−3</sup>, and 2 × 10<sup>−3</sup> mbar. Plasma parameters are determined by using RF matching parameters and the actinometry procedure of optical emission spectroscopy (OES). Transition from capacitive-inductive (E-H) mode to helicon (W) mode is observed as RF power increases in the source chamber. Observed jumps in plasma density profile with RF power confirm the mode transition in chlorine discharge. The electron impact ionization increases in the higher power range to sustain the helicon mode. Positive chlorine ion (Cl<sup>+</sup>) density with the variation of RF power is also determined for all the working pressures. Cl<sup>+</sup> density is found to be higher in the helicon mode with a sharp increase in the density and intensity of the Cl<sup>+</sup> emission lines.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"66 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146007843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Dust Size Distribution Using the Nonlinear Schrödinger Equation in an Unmagnetized Dusty Plasma 非线性Schrödinger方程对非磁化尘埃等离子体中尘埃粒径分布的影响

IF 1.5 4区物理与天体物理

Contributions to Plasma Physics Pub Date : 2025-07-16 DOI: 10.1002/ctpp.70038

Sabah Bibi, Wen-Shan Duan

引用次数: 0

Comparison Between Induced Compton Scattering Experiments and Particle-In-Cell Simulation 诱导康普顿散射实验与细胞内粒子模拟的比较

IF 1.5 4区物理与天体物理

Contributions to Plasma Physics Pub Date : 2025-07-15 DOI: 10.1002/ctpp.70029

Kiyochika Kuramoto, Shuta J. Tanaka, Tzu-Yao Huang, M. Sofyan Habibi, Nur Khasanah, Shih-Hung Chen, Hsu-Hsin Chu, Jyhpyng Wang, Chih-Hao Pai, Yao-Li Liu, Chun-Sung Jao, Michel Koenig, Kentaro Sakai, Toseo Moritaka, Youichi Sakawa, Yuji Fukuda, Yasuhiro Kuramitsu

{"title":"Comparison Between Induced Compton Scattering Experiments and Particle-In-Cell Simulation","authors":"Kiyochika Kuramoto, Shuta J. Tanaka, Tzu-Yao Huang, M. Sofyan Habibi, Nur Khasanah, Shih-Hung Chen, Hsu-Hsin Chu, Jyhpyng Wang, Chih-Hao Pai, Yao-Li Liu, Chun-Sung Jao, Michel Koenig, Kentaro Sakai, Toseo Moritaka, Youichi Sakawa, Yuji Fukuda, Yasuhiro Kuramitsu","doi":"10.1002/ctpp.70029","DOIUrl":"https://doi.org/10.1002/ctpp.70029","url":null,"abstract":"<div>\u0000 \u0000 <p>Induced Compton scattering (CS) is a quantum nonlinear interaction between an intense electromagnetic field and a rarefied plasma. Although the induced CS is expected to occur in radiation fields with high brightness temperatures such as pulsars in nature, the principle of induced CS has not been proven experimentally. Therefore, we conducted a proof-of-principle experiment of induced CS using an ultra-intense laser. We measured the scattered spectra due to the interaction between the ultra-intense laser and plasma. The observed spectrum shows a nonlinear redshift, which can be explained by induced CS. We also performed particle-in-cell simulations, in which induced CS is not included, and found that the experimental results are not explained by classical plasma physics.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 10","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Peculiarities of Nanomaterials Synthesis in DC Glow Discharge Plasma 直流辉光放电等离子体合成纳米材料的特性研究

IF 1.5 4区物理与天体物理

Contributions to Plasma Physics Pub Date : 2025-07-11 DOI: 10.1002/ctpp.70039

Utegenov Almasbek, Yerlanuly Yerassyl, Ongaibergenov Zhanserik, Orazbayev Sagi, Abdrakhmanov Azamat, Ramazanov Tlekkabul

引用次数: 0

Influence of Ion Core on Structural and Thermodynamic Properties of Dense Plasma 离子核对致密等离子体结构和热力学性质的影响

IF 1.5 4区物理与天体物理

Contributions to Plasma Physics Pub Date : 2025-07-11 DOI: 10.1002/ctpp.70034

T. N. Ismagambetova, M. M. Muratov, M. T. Gabdullin, T. S. Ramazanov

引用次数: 0

Mode-Locking in DC and AC Driven Charged Dust Grains in Plasma 等离子体中直流和交流驱动带电尘埃颗粒的模式锁定

IF 1.5 4区物理与天体物理

Contributions to Plasma Physics Pub Date : 2025-07-10 DOI: 10.1002/ctpp.70035

Yixin Xie, Youmei Wang, Haixiang Cao, Yaofei Zhang, Mingyang Yu

引用次数: 0

Particles Acceleration and Electron Heating due to Kinetic Alfvén Waves in Jupiter's Equatorial Plasma Sheet 木星赤道等离子体片中动力学alfvsamn波引起的粒子加速和电子加热

IF 1.5 4区物理与天体物理

Contributions to Plasma Physics Pub Date : 2025-07-10 DOI: 10.1002/ctpp.70027

S. A. Khan, Kiran Batool, Sana Zubair

{"title":"Particles Acceleration and Electron Heating due to Kinetic Alfvén Waves in Jupiter's Equatorial Plasma Sheet","authors":"S. A. Khan, Kiran Batool, Sana Zubair","doi":"10.1002/ctpp.70027","DOIUrl":"https://doi.org/10.1002/ctpp.70027","url":null,"abstract":"<div>\u0000 \u0000 <p>Jupiter's magnetospheric data reveal unusual plasma expansion and Alfvén wave-driven stochastic acceleration of plasma particles, affecting navigation satellites, planetary and lunar weather patterns, solar wind dynamics, and more. Observations of Jupiter's equatorial plasma sheet show the excitation of Alfvénic disturbances and wave–particle interaction of Alfvén waves at kinetic scales, thereby accelerating electrons to keV–MeV energy ranges by the key mechanism of Landau damping. In this work, we investigate the features of kinetic Alfvén wave in high-latitude regions of Jupiter plasma sheet, highlighting the ion mass effects on wave dispersion, polarization properties, and the decay of Poynting flux associated with these waves. The resonance conditions are affected by temperature, wave fields, and parallel wave number, resulting in lower flux decay for hotter electrons and stronger ambient magnetic field. The electron heating rate associated with the kinetic dissipation of Alfvén waves along the background magnetic field lines, as a consequence of wave–particle resonant interaction, is also investigated under the drift-kinetic approximation for colder ions. The results indicate that kinetic Alfvén waves are among the drivers of particle acceleration, causing energization parallel to the magnetic field in the inner plasma sheet, as observed in the satellite data.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"66 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146027514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two Plasmon Decay of Laser in a Rippled Density Plasma 激光在脉动密度等离子体中的双等离子体衰变

IF 1.5 4区物理与天体物理

Contributions to Plasma Physics Pub Date : 2025-07-08 DOI: 10.1002/ctpp.70036

Mamta Yadav, Nivedya Krishnan, Subhayan Mandal, Ashok Kumar

引用次数: 0