Pub Date : 2024-10-23DOI: 10.1109/TPS.2024.3474682
Zhizhen Liu;Xinjie Yu;Zhen Li;Bei Li
It is quite common to use multiple linear modules with asynchronous operation, e.g., the pulsed power supply (PPS) system for electromagnetic launch (EML), to provide higher power or the complex signal modulation function. Up to now, numerical simulation has been the only way to solve these problems but suffers from long running time and thus limits the large-scale optimization and control for these systems. This article proposes a rigorous port-equivalent order reduction method based on the Thevenin equivalence and short-circuit equivalence. This method can simplify the solution of multimodule linear circuits into the solution of multiple lower order circuits. If lower order circuits can be calculated analytically, the fully analytical calculation of the multimodule circuit can be realized. Otherwise, reducing the order can also greatly reduce the time of circuit simulation. On this basis, taking the meat grinder with a self-charged capacitor and thyristor (SECT) multimodule circuit as an example, its rapid and analytical calculation is demonstrated. Compared with the Simulink simulation, the results show that the method proposed in this article is about 50 times faster than the simulation, and the root-mean-square error (RMSE) is very small, which means that the calculation accuracy can well meet the requirements.
{"title":"Order Reduction and Rapid Calculation for Multimodule Linear Circuits","authors":"Zhizhen Liu;Xinjie Yu;Zhen Li;Bei Li","doi":"10.1109/TPS.2024.3474682","DOIUrl":"https://doi.org/10.1109/TPS.2024.3474682","url":null,"abstract":"It is quite common to use multiple linear modules with asynchronous operation, e.g., the pulsed power supply (PPS) system for electromagnetic launch (EML), to provide higher power or the complex signal modulation function. Up to now, numerical simulation has been the only way to solve these problems but suffers from long running time and thus limits the large-scale optimization and control for these systems. This article proposes a rigorous port-equivalent order reduction method based on the Thevenin equivalence and short-circuit equivalence. This method can simplify the solution of multimodule linear circuits into the solution of multiple lower order circuits. If lower order circuits can be calculated analytically, the fully analytical calculation of the multimodule circuit can be realized. Otherwise, reducing the order can also greatly reduce the time of circuit simulation. On this basis, taking the meat grinder with a self-charged capacitor and thyristor (SECT) multimodule circuit as an example, its rapid and analytical calculation is demonstrated. Compared with the Simulink simulation, the results show that the method proposed in this article is about 50 times faster than the simulation, and the root-mean-square error (RMSE) is very small, which means that the calculation accuracy can well meet the requirements.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"52 8","pages":"3343-3351"},"PeriodicalIF":1.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600252","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}
Magnetic solitons hold great promise for token-based computing applications due to their intrinsic properties, including small size, topological stability, ultra-low power manipulation, and potentially ultra-fast operation. In particular, they have been proposed as reliable memory units that enable the execution of various logic tasks with in-situ memory. A critical challenge remains the identification of optimal soliton and efficient manipulation techniques. Previous research has primarily focused on the manipulation of two-dimensional solitons, such as skyrmions, domain walls, and vortices, by applied currents. The discovery of novel methods to control magnetic parameters, such as the interfacial Dzyaloshinskii-Moriya interaction, through strain, temperature gradients, and applied voltages offers new avenues for energetically efficient manipulation of magnetic structures. In this work, we present a comprehensive study using numerical and analytical methods to investigate the stability and motion of various magnetic textures under the influence of DMI gradients. Our results show that Néel and Bloch-type skyrmions, as well as radial vortices, exhibit motion characterized by finite skyrmion Hall angles, while circular vortices undergo expulsion dynamics. This study provides a deeper and crucial understanding of the stability and gradient-driven dynamics of magnetic solitons, paving the way for the design of scalable spintronics token-based computing devices.
{"title":"Manipulation of 2D and 3D Magnetic Solitons Under the Influence of DMI Gradients","authors":"Rayan Moukhader;Davi Rodrigues;Eleonora Raimondo;Vito Puliafito;Bruno Azzerboni;Mario Carpentieri;Abbass Hamadeh;Giovanni Finocchio;Riccardo Tomasello","doi":"10.1109/OJNANO.2024.3484568","DOIUrl":"https://doi.org/10.1109/OJNANO.2024.3484568","url":null,"abstract":"Magnetic solitons hold great promise for token-based computing applications due to their intrinsic properties, including small size, topological stability, ultra-low power manipulation, and potentially ultra-fast operation. In particular, they have been proposed as reliable memory units that enable the execution of various logic tasks with in-situ memory. A critical challenge remains the identification of optimal soliton and efficient manipulation techniques. Previous research has primarily focused on the manipulation of two-dimensional solitons, such as skyrmions, domain walls, and vortices, by applied currents. The discovery of novel methods to control magnetic parameters, such as the interfacial Dzyaloshinskii-Moriya interaction, through strain, temperature gradients, and applied voltages offers new avenues for energetically efficient manipulation of magnetic structures. In this work, we present a comprehensive study using numerical and analytical methods to investigate the stability and motion of various magnetic textures under the influence of DMI gradients. Our results show that Néel and Bloch-type skyrmions, as well as radial vortices, exhibit motion characterized by finite skyrmion Hall angles, while circular vortices undergo expulsion dynamics. This study provides a deeper and crucial understanding of the stability and gradient-driven dynamics of magnetic solitons, paving the way for the design of scalable spintronics token-based computing devices.","PeriodicalId":446,"journal":{"name":"IEEE Open Journal of Nanotechnology","volume":"5 ","pages":"68-79"},"PeriodicalIF":1.8,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10726665","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142555132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-21DOI: 10.1109/OJNANO.2024.3484408
Nasih Hma Salah;Baljinder Kaur;Hogr M. Rasul;Yesudasu Vasimalla;Chella Santhosh;Ramachandran Balaji;S. R. Srither;Santosh Kumar
Food safety assurance is crucial, particularly in identifying prohibited colors like brilliant blue (BB) that may pose significant health risks when used in food products. Surface plasmon resonance (SPR) biosensors provide a reliable, label-free method for highly sensitive detection of food adulterants. In this study, we present a novel gallium sulfide (GaS)-immobilized optical fiber SPR sensor designed for the rapid, real-time detection of BB synthetic dye. The proposed sensor is comprised of a high birefringence layer (HBL) core with non-added formaldehyde (NaF) cladding, silver (Ag) as the plasmonic metal, and GaS for enhanced detection sensitivity. To determine the sensor performance, the wavelength-dependent response was measured at different refractive indices (RIs), together with sensitivity and figure of merit (FOM) over the wavelength range of 400 nm to 1000 nm. The parameters were evaluated in a sensing medium consisting of water and BB under concentrations ranging from 10 mM to 600 mM. Moreover, the distribution of electromagnetic fields across the multilayer structures of the sensor, particularly at the interfaces between Ag-GaS and GaS-analytes, was investigated. At a 10 mM concentration, the optimized Ag-GaS-based sensor, consisting of 70 nm Ag and 3 nm GaS layers at an incidence angle of 85°, achieves a maximum sensitivity of 5119.6 nm/RIU and FOM of 255.98 RIU -1 . The obtained results illustrate the sensor has the potential to detect non-approved colors like BB in food items with great sensitivity and accuracy.
食品安全保障至关重要，尤其是在识别像亮蓝（BB）这样的违禁色素方面。表面等离子体共振（SPR）生物传感器为高灵敏度检测食品掺假物质提供了一种可靠的无标记方法。在这项研究中，我们提出了一种新型硫化镓（GaS）固定光纤 SPR 传感器，用于快速、实时检测 BB 合成染料。该传感器由带有无添加甲醛（NaF）包层的高双折射层（HBL）核心、作为质子金属的银（Ag）以及用于提高检测灵敏度的 GaS 组成。为了确定传感器的性能，在 400 纳米到 1000 纳米的波长范围内，测量了不同折射率（RI）下随波长变化的响应，以及灵敏度和优点系数（FOM）。这些参数是在由水和 BB 组成的传感介质（浓度范围为 10 mM 至 600 mM）中进行评估的。此外，还研究了电磁场在传感器多层结构上的分布，特别是在 Ag-GaS 和 GaS-analytes 之间的界面上。在 10 mM 的浓度下，基于 Ag-GaS 的优化传感器由 70 nm 的 Ag 层和 3 nm 的 GaS 层组成，入射角为 85°，最大灵敏度为 5119.6 nm/RIU，FOM 为 255.98 RIU-1。这些结果表明，该传感器可以非常灵敏、准确地检测食品中的非认可色素（如 BB）。
{"title":"Gallium Sulfide-Immobilized Optical Fiber-Based SPR Sensor for Detection of Brilliant Blue Food Adulteration","authors":"Nasih Hma Salah;Baljinder Kaur;Hogr M. Rasul;Yesudasu Vasimalla;Chella Santhosh;Ramachandran Balaji;S. R. Srither;Santosh Kumar","doi":"10.1109/OJNANO.2024.3484408","DOIUrl":"https://doi.org/10.1109/OJNANO.2024.3484408","url":null,"abstract":"Food safety assurance is crucial, particularly in identifying prohibited colors like brilliant blue (BB) that may pose significant health risks when used in food products. Surface plasmon resonance (SPR) biosensors provide a reliable, label-free method for highly sensitive detection of food adulterants. In this study, we present a novel gallium sulfide (GaS)-immobilized optical fiber SPR sensor designed for the rapid, real-time detection of BB synthetic dye. The proposed sensor is comprised of a high birefringence layer (HBL) core with non-added formaldehyde (NaF) cladding, silver (Ag) as the plasmonic metal, and GaS for enhanced detection sensitivity. To determine the sensor performance, the wavelength-dependent response was measured at different refractive indices (RIs), together with sensitivity and figure of merit (FOM) over the wavelength range of 400 nm to 1000 nm. The parameters were evaluated in a sensing medium consisting of water and BB under concentrations ranging from 10 mM to 600 mM. Moreover, the distribution of electromagnetic fields across the multilayer structures of the sensor, particularly at the interfaces between Ag-GaS and GaS-analytes, was investigated. At a 10 mM concentration, the optimized Ag-GaS-based sensor, consisting of 70 nm Ag and 3 nm GaS layers at an incidence angle of 85°, achieves a maximum sensitivity of 5119.6 nm/RIU and FOM of 255.98 RIU\u0000<sup>-1</sup>\u0000. The obtained results illustrate the sensor has the potential to detect non-approved colors like BB in food items with great sensitivity and accuracy.","PeriodicalId":446,"journal":{"name":"IEEE Open Journal of Nanotechnology","volume":"5 ","pages":"98-106"},"PeriodicalIF":1.8,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10726679","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-18DOI: 10.1109/JSEN.2024.3465606
Jun Chen;Zhixuan Su;Runze Lin;Kai Yang;Shuntao Hu;Shilong Liu;Yue Chen;Yihang Zhang;Chenyang Xue;Zhenyin Hai;Junyang Li
In the context of hyperthermal aerodynamics, where the heat transfer rate changes rapidly, there is an urgent need to obtain thermal data on the surface of structures. To address this, we propose a novel G-type coaxial dual-parametric sensor that utilizes the Seebeck thermoelectric effect to measure the temperature of high-temperature airflows and derive heat fluxes based on the 1-D semi-infinite body assumption method. In a laboratory environment, we performed static calibration of the sensor’s performance indices in the temperature range of $200~^{circ }$ C– $1500~^{circ }$ C. The calibration results of voltage versus temperature indicate that the sensitivity of the sensor is approximately $21~mu $ V/°C, with a fitting coefficient exceeding 0.9999. Compared to the national standard for G-type thermocouples regarding the temperature-voltage relationship, the maximum voltage deviation is only 0.1 mV. Additionally, when we calibrated the heat flux of the sensor using a laser calibration method, the sensor monitored a heat flux upper limit of over 21 MW/m2, with an absolute error of less than 1.5%, corresponding to a heat flux response time of 1.15 ms. Finally, the G-type coaxial sensor, prepared using the natural growth method for the insulating layer, successfully achieved dual-parameter monitoring of structural surface temperature and heat flux exceeding $1250~^{circ }$ C and 5.1 MW/m2 in the high-temperature environment of supersonic flame washout. This provides a feasible solution for the accurate acquisition of structural surface thermal data in various rocket motor components.
在热传导率快速变化的超热空气动力学中，迫切需要获得结构表面的热数据。为此，我们提出了一种新型 G 型同轴双参数传感器，利用塞贝克热电效应测量高温气流的温度，并根据一维半无限体假设法推导热通量。在实验室环境下，我们在 200~^{circ }$ C- $1500~^{circ }$ C 的温度范围内对传感器的性能指标进行了静态校准。电压与温度的校准结果表明，传感器的灵敏度约为 21~mu $ V/°C，拟合系数超过 0.9999。与有关温度-电压关系的 G 型热电偶国家标准相比，最大电压偏差仅为 0.1 mV。此外，当我们使用激光校准法校准传感器的热通量时，传感器监测到的热通量上限超过 21 MW/m2，绝对误差小于 1.5%，对应的热通量响应时间为 1.15 ms。最后，采用绝缘层自然生长法制备的 G 型同轴传感器在超音速火焰冲刷的高温环境中成功实现了对超过 1250~^{circ }$ C 和 5.1 MW/m2 的结构表面温度和热通量的双参数监测。这为精确获取各种火箭发动机部件的结构表面热数据提供了可行的解决方案。
{"title":"A Dual-Parametric G-Type Coaxial Thermocouple With Superior Thermal Measurement Capabilities","authors":"Jun Chen;Zhixuan Su;Runze Lin;Kai Yang;Shuntao Hu;Shilong Liu;Yue Chen;Yihang Zhang;Chenyang Xue;Zhenyin Hai;Junyang Li","doi":"10.1109/JSEN.2024.3465606","DOIUrl":"https://doi.org/10.1109/JSEN.2024.3465606","url":null,"abstract":"In the context of hyperthermal aerodynamics, where the heat transfer rate changes rapidly, there is an urgent need to obtain thermal data on the surface of structures. To address this, we propose a novel G-type coaxial dual-parametric sensor that utilizes the Seebeck thermoelectric effect to measure the temperature of high-temperature airflows and derive heat fluxes based on the 1-D semi-infinite body assumption method. In a laboratory environment, we performed static calibration of the sensor’s performance indices in the temperature range of \u0000<inline-formula> <tex-math>$200~^{circ }$ </tex-math></inline-formula>\u0000C–\u0000<inline-formula> <tex-math>$1500~^{circ }$ </tex-math></inline-formula>\u0000C. The calibration results of voltage versus temperature indicate that the sensitivity of the sensor is approximately \u0000<inline-formula> <tex-math>$21~mu $ </tex-math></inline-formula>\u0000V/°C, with a fitting coefficient exceeding 0.9999. Compared to the national standard for G-type thermocouples regarding the temperature-voltage relationship, the maximum voltage deviation is only 0.1 mV. Additionally, when we calibrated the heat flux of the sensor using a laser calibration method, the sensor monitored a heat flux upper limit of over 21 MW/m2, with an absolute error of less than 1.5%, corresponding to a heat flux response time of 1.15 ms. Finally, the G-type coaxial sensor, prepared using the natural growth method for the insulating layer, successfully achieved dual-parameter monitoring of structural surface temperature and heat flux exceeding \u0000<inline-formula> <tex-math>$1250~^{circ }$ </tex-math></inline-formula>\u0000C and 5.1 MW/m2 in the high-temperature environment of supersonic flame washout. This provides a feasible solution for the accurate acquisition of structural surface thermal data in various rocket motor components.","PeriodicalId":447,"journal":{"name":"IEEE Sensors Journal","volume":"24 22","pages":"36403-36411"},"PeriodicalIF":4.3,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142636270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-17DOI: 10.1109/MEI.2024.10721381
Andrés Montero;Belén García
Transformer retrofilling with natural and synthetic esters may improve the fire safety of electric facilities, limit the environmental impact of transformers, and extend the equipment's lifespan.
变压器加注天然酯和合成酯可改善电力设施的消防安全，限制变压器对环境的影响，并延长设备的使用寿命。
{"title":"Retrofilling Mineral Oil-Immersed Transformers with Alternative Insulating Liquids: A Review","authors":"Andrés Montero;Belén García","doi":"10.1109/MEI.2024.10721381","DOIUrl":"https://doi.org/10.1109/MEI.2024.10721381","url":null,"abstract":"Transformer retrofilling with natural and synthetic esters may improve the fire safety of electric facilities, limit the environmental impact of transformers, and extend the equipment's lifespan.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"40 6","pages":"6-22"},"PeriodicalIF":2.6,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-17DOI: 10.1109/MEI.2024.10721389
The highly anticipated sixth edition of the International Conference of Dielectrics (ICD) is set to convene in Southampton, United Kingdom, from Sunday, June 21, through Thursday, June 25, 2026. This prestigious conference, sponsored by the IEEE Dielectrics and Electrical Insulation Society, has evolved from the esteemed International Conference on Conduction and Breakdown in Solid Dielectrics (ICSD). It broadens its scope to include both liquid and gaseous dielectrics, reflecting the latest advancements in the field.
{"title":"Bulletin Board: IEEE DEIS 2026 International Conference on Dielectrics (June 21–25, 2026)","authors":"","doi":"10.1109/MEI.2024.10721389","DOIUrl":"https://doi.org/10.1109/MEI.2024.10721389","url":null,"abstract":"The highly anticipated sixth edition of the International Conference of Dielectrics (ICD) is set to convene in Southampton, United Kingdom, from Sunday, June 21, through Thursday, June 25, 2026. This prestigious conference, sponsored by the IEEE Dielectrics and Electrical Insulation Society, has evolved from the esteemed International Conference on Conduction and Breakdown in Solid Dielectrics (ICSD). It broadens its scope to include both liquid and gaseous dielectrics, reflecting the latest advancements in the field.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"40 6","pages":"46-46"},"PeriodicalIF":2.6,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10721389","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-17DOI: 10.1109/MEI.2024.10721380
Giovanni Mazzanti;Zepeng Lv
The IEEE DEIS TC “HVDC cable systems (cables, joints and terminations)” has been quite active since its formation in 2012 (for a summary, see the TC website [1]) and has issued the following two IEEE standards: (1) IEEE 1732–2017, “Recommended Practice for Space Charge Measurements in HVDC Extruded Cables for Rated Voltages up to 550 kV” [2] and (2) IEEE 2862–2020, “Recommended Practice for Partial Discharge Measurements under AC Voltage with VHF/UHF Sensors During Routine Tests on Factory and Pre-moulded Joints of HVDC Extruded Cable Systems up to 800 kV” [3].
{"title":"Technical Committees: Recent Activities of the DEIS Technical Committee on “HVDC Cable Systems”: Two New Study Groups for Novel IEEE Standards on Space Charge Measurement","authors":"Giovanni Mazzanti;Zepeng Lv","doi":"10.1109/MEI.2024.10721380","DOIUrl":"https://doi.org/10.1109/MEI.2024.10721380","url":null,"abstract":"The IEEE DEIS TC “HVDC cable systems (cables, joints and terminations)” has been quite active since its formation in 2012 (for a summary, see the TC website [1]) and has issued the following two IEEE standards: (1) IEEE 1732–2017, “Recommended Practice for Space Charge Measurements in HVDC Extruded Cables for Rated Voltages up to 550 kV” [2] and (2) IEEE 2862–2020, “Recommended Practice for Partial Discharge Measurements under AC Voltage with VHF/UHF Sensors During Routine Tests on Factory and Pre-moulded Joints of HVDC Extruded Cable Systems up to 800 kV” [3].","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"40 6","pages":"30-33"},"PeriodicalIF":2.6,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10721380","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-17DOI: 10.1109/MEI.2024.10721384
Zepeng Lv
Dielectric materials are widely used for various electrical devices and equipment, including capacitors, transformers, gas-insulated switchgear, and so on; energy storage; electronic packaging; and mechanical support [1], [2]. Surface charge commonly exists on the surface of dielectric material due to the strong electromagnetic (electron injection or ionization) or mechanical stress (contact electrification). On one hand, surface charge accumulation is a critical factor that can greatly influence the flashover, especially in high-voltage direct-current equipment [3]. On the other hand, high surface charge density is greatly expected for energy storage or harvesting devices, such as triboelectric nanogenerators (TENG), supercapacitors, and so on [4], [5]. Because surface charges are imperceptible, surface charge characterization techniques play an important role in comprehensively understanding their characteristics.
{"title":"Stories from China","authors":"Zepeng Lv","doi":"10.1109/MEI.2024.10721384","DOIUrl":"https://doi.org/10.1109/MEI.2024.10721384","url":null,"abstract":"Dielectric materials are widely used for various electrical devices and equipment, including capacitors, transformers, gas-insulated switchgear, and so on; energy storage; electronic packaging; and mechanical support [1], [2]. Surface charge commonly exists on the surface of dielectric material due to the strong electromagnetic (electron injection or ionization) or mechanical stress (contact electrification). On one hand, surface charge accumulation is a critical factor that can greatly influence the flashover, especially in high-voltage direct-current equipment [3]. On the other hand, high surface charge density is greatly expected for energy storage or harvesting devices, such as triboelectric nanogenerators (TENG), supercapacitors, and so on [4], [5]. Because surface charges are imperceptible, surface charge characterization techniques play an important role in comprehensively understanding their characteristics.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"40 6","pages":"27-29"},"PeriodicalIF":2.6,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10721384","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-17DOI: 10.1109/MEI.2024.10721377
Gilbert Teyssèdre
From June 30 to July 5, 2024, the 5th International Conference on Dielectrics (ICD) took place in Toulouse, France. The conference communications were presented in the main auditorium of the Toulouse III Paul Sabatier University. This conference series has a special relation with Toulouse, which is its birth town; it was first created in Toulouse in 1983 under the name of the International Conference on Conduction and Breakdown in Solid Dielectrics, and an edition returned to Toulouse in 2004, on the occasion of its 20th anniversary. Twenty years later, we were back in Toulouse.
{"title":"Bulletin Board: Conference Report—2024 IEEE-DEIS 5th International Conference on Dielectrics (IEEE ICD 2024)","authors":"Gilbert Teyssèdre","doi":"10.1109/MEI.2024.10721377","DOIUrl":"https://doi.org/10.1109/MEI.2024.10721377","url":null,"abstract":"From June 30 to July 5, 2024, the 5th International Conference on Dielectrics (ICD) took place in Toulouse, France. The conference communications were presented in the main auditorium of the Toulouse III Paul Sabatier University. This conference series has a special relation with Toulouse, which is its birth town; it was first created in Toulouse in 1983 under the name of the International Conference on Conduction and Breakdown in Solid Dielectrics, and an edition returned to Toulouse in 2004, on the occasion of its 20th anniversary. Twenty years later, we were back in Toulouse.","PeriodicalId":444,"journal":{"name":"IEEE Electrical Insulation Magazine","volume":"40 6","pages":"42-45"},"PeriodicalIF":2.6,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10721377","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：