Contributions to Plasma Physics最新文献

{"title":"Research on Arc Erosion of Bridge-Type Contacts in DC Relays Under Closing-Breaking Actions","authors":"Haitao Wang,&nbsp;Yuxuan Liu,&nbsp;Kerun Jing","doi":"10.1002/ctpp.70053","DOIUrl":"https://doi.org/10.1002/ctpp.70053","url":null,"abstract":"<div>\u0000 \u0000 <p>Direct current (DC) relays play a critical role in diverse applications, with bridge-type contacts being widely employed in modern designs. Current research on contact arc erosion predominantly focuses on single-break-point interruption models, which inadequately represent the arc behavior of bridge-type contacts. To address this gap, this paper establishes a bridge-type contact arc model for both closing and breaking actions, alongside a moving contact erosion model. These models investigate the complex erosion effects induced by arcs during contact operations under varying voltages and currents, incorporating magnetic blowout effects. Correlation and error analyzes were conducted between the peak-to-valley height difference (<i>R</i>_<i>t</i>) of the molten pool generated by simulated arc erosion on the moving contact surface and the experimental <i>R</i>_<i>t</i> parameter. The results showed correlation coefficients and errors of 0.943 and 5.48% for the left side, and 0.995 and 3.78% for the right side of the moving contact, respectively, validating the simulation model's effectiveness. Building on this validation, a contact failure prediction method was developed. This method demonstrates that when the <i>R</i>_<i>t</i> value obtained from contact surface erosion under varying conditions exceeds the threshold <i>R</i>_<i>tmax</i> = 364.991 μm, the contact exhibits a 92% probability of failure. The simulation model accurately predicts contact failure across different voltage and current scenarios, providing a practical solution for determining contact voltage and current withstand capabilities during the design phase.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"66 2","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565991","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}

{"title":"Cover Picture: Contrib. Plasma Phys. 01/2026","authors":"","doi":"10.1002/ctpp.70080","DOIUrl":"https://doi.org/10.1002/ctpp.70080","url":null,"abstract":"<p>Impact of NAPP on HMPV infection and replication. Fig. 6 of the paper by Sohail Mumtaz et al. https://doi.org/10.1002/ctpp.70044\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"66 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.70080","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146016450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Issue Information: Contrib. Plasma Phys. 01/2026","authors":"","doi":"10.1002/ctpp.70079","DOIUrl":"https://doi.org/10.1002/ctpp.70079","url":null,"abstract":"","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"66 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.70079","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146007862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Issue Information: Contrib. Plasma Phys. 10/2025","authors":"","doi":"10.1002/ctpp.202590020","DOIUrl":"https://doi.org/10.1002/ctpp.202590020","url":null,"abstract":"","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 10","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover Picture: Contrib. Plasma Phys. 10/2025","authors":"","doi":"10.1002/ctpp.202590019","DOIUrl":"https://doi.org/10.1002/ctpp.202590019","url":null,"abstract":"<p>Flowchart of the neural network-based electric field reconstruction process, including (a) creating the conceptual experiment setup, (b) importing the electric field profile from the simulation, (c) generating the corresponding pit distribution using test particle simulations, (d) generating training data and training the neural network model, and (e) reconstructing the electric field profile. Fig. 5 of the paper by A. Mizuta et al. https://doi.org/10.1002/ctpp.70019\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 10","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover Picture: Contrib. Plasma Phys. 08/2025","authors":"","doi":"10.1002/ctpp.202590015","DOIUrl":"https://doi.org/10.1002/ctpp.202590015","url":null,"abstract":"<p>The temperature-density domain of interest illustrating the approximate region of warm dense matter (WDM) (orange region) and the conditions found within several astrophysical objects. The upper mass density scale refers to the hydrogen plasma considered. The lines of constant coupling parameters (purple) delineate the transition between the weakly and strongly coupled regimes. Similarly, the black line marks the points where the thermal energy is equal to the Fermi energy, indicating the relevance of quantum degeneracy effects. Fig. 1 of the paper by Samuel Schumacher et al. https://doi.org/10.1002/ctpp.70002\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 8-9","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145426101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Issue Information: Contrib. Plasma Phys. 08/2025","authors":"","doi":"10.1002/ctpp.202590016","DOIUrl":"https://doi.org/10.1002/ctpp.202590016","url":null,"abstract":"","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 8-9","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145426102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on Coupling Characteristics of Hall Thruster Abnormal Ignition","authors":"Yuhan Lin,&nbsp;Zhongxi Ning,&nbsp;Ao Han,&nbsp;Chao Sun,&nbsp;Chenying Li,&nbsp;Tianhang Meng,&nbsp;Yinggang Tong,&nbsp;Wei Mao,&nbsp;Yanlin Hu","doi":"10.1002/ctpp.70048","DOIUrl":"https://doi.org/10.1002/ctpp.70048","url":null,"abstract":"<div>\u0000 \u0000 <p>This study conducted systematic experiments to investigate abnormal ignition in Hall thrusters. The dynamic characteristics of electrical parameters during ignition were monitored using a multi-probe diagnostic system. The experiments revealed that abnormal ignition occurs earliest and most intensely in the coupling region. This can be identified via housing and probes positioned in this area, where plasma demonstrates azimuthal uniformity and axial consistency during normal ignition. Conversely, abnormal ignition displays marked spatial asymmetry. Experimental alterations in thruster and cathode parameters demonstrated that increased anode voltage elevates electron temperature through enhanced electric field energy, consequently boosting ionization rates and space potential. An increase in keeper current suppresses initial abnormal ignition but may exacerbate plasma disturbance if excessive. In conclusion, the primary distinction between abnormal and normal ignition lies in variations within the coupling region.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"66 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146016257","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}

{"title":"Kinetic Study of Dust Acoustic Waves in Non-Thermal Cairns bi-Maxwellian Plasma","authors":"Rashid Ul Haq,&nbsp;Fazli Hadi,&nbsp;Ullah Zakir,&nbsp;Ahmad Zeeshan","doi":"10.1002/ctpp.70043","DOIUrl":"https://doi.org/10.1002/ctpp.70043","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 &lt;p&gt;The real frequency (&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;ω&lt;/mi&gt;\u0000 &lt;mi&gt;r&lt;/mi&gt;\u0000 &lt;/msub&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ {omega}_r $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;) and Landau damping rate (&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;γ&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ gamma $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;) of dust acoustic waves propagating in a plasma containing Cairns bi-Maxwellian distributed electrons, ions and negatively charged dust grains are investigated applying kinetic theory approach under the condition &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;v&lt;/mi&gt;\u0000 &lt;mi&gt;td&lt;/mi&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mo&gt;&lt;&lt;/mo&gt;\u0000 &lt;mo&gt;&lt;&lt;/mo&gt;\u0000 &lt;mi&gt;ω&lt;/mi&gt;\u0000 &lt;mo&gt;/&lt;/mo&gt;\u0000 &lt;mi&gt;k&lt;/mi&gt;\u0000 &lt;mo&gt;&lt;&lt;/mo&gt;\u0000 &lt;mo&gt;&lt;&lt;/mo&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;v&lt;/mi&gt;\u0000 &lt;mi&gt;ti&lt;/mi&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mo&gt;&lt;&lt;/mo&gt;\u0000 &lt;mo&gt;&lt;&lt;/mo&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;v&lt;/mi&gt;\u0000 &lt;mi&gt;te&lt;/mi&gt;\u0000 &lt;/msub&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ {v}_{td}&lt;&lt;omega /k&lt;&lt;{v}_{ti}&lt;&lt;{v}_{te} $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;. The effect of non-thermality parameter (&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;∧&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ wedge $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;) and electron to ion equilibrium density ratio &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;n&lt;/mi&gt;\u0000 &lt;mi&gt;oe&lt;/mi&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mo&gt;/&lt;/mo&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;n&lt;/mi&gt;\u0000 &lt;mi&gt;oi&lt;/mi&gt;\u0000 &lt;/msub&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ {n}_{oe}/{n}_{oi} $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; on the phase velocity of DAWs are presented. The phase velocity increases with increasing spectral index &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;∧&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ wedge $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; and decreases as &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;n&lt;/mi&gt;\u0000 &lt;mi&gt;oe&lt;/mi&gt;\u0000 &lt;/msub&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ {n}_{oe} $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; decreases. The L","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"66 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146007880","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}

{"title":"Langmuir Probe Measurements: The Electron Diffusion Parameter Under Collisional Near-Probe Space Charge Layer Conditions","authors":"J. L. Jauberteau,&nbsp;I. Jauberteau","doi":"10.1002/ctpp.70041","DOIUrl":"https://doi.org/10.1002/ctpp.70041","url":null,"abstract":"<p>The corrections which are necessary in the determination of the Electron Energy Distribution Function (EEDF) by means of Langmuir probe under near-probe space-charge layer conditions are investigated. Exact calculations of the first and second derivative function of the I(V) probe characteristic are given and approximations are used to determine the electron diffusion parameter (sink parameter) and consequently the EEDF. The results obtained using these different approximations are discussed and compared with those obtained using other methods reported in the literature.</p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"66 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.70041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146007793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}