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Journal articles on the topic 'Discharge devices'

Author: Grafiati

Published: 28 May 2022

Last updated: 18 July 2025

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I., Ciocioi. "Testing of immunity to electrostatic discharge of electronic devices and devices electrically initiated." Scientific Bulletin of Naval Academy XXII, no. 2 (2019): 337–42. http://dx.doi.org/10.21279/1454-864x-19-i2-040.

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Electrostatic discharges of bodies loaded with static electricity are accompanied by the emergence of tension and transient currents, which can cause damage to electronic devices and the ignition of electrically initiated devices. In electromagnetic compatibility a great importance (from the point of view of electrostatic discharge) has the discharge of human body.

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Korzec, Dariusz, Florian Hoppenthaler, and Stefan Nettesheim. "Piezoelectric Direct Discharge: Devices and Applications." Plasma 4, no. 1 (2020): 1–41. http://dx.doi.org/10.3390/plasma4010001.

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The piezoelectric direct discharge (PDD) is a comparatively new type of atmospheric pressure gaseous discharge for production of cold plasma. The generation of such discharge is possible using the piezoelectric cold plasma generator (PCPG) which comprises the resonant piezoelectric transformer (RPT) with voltage transformation ratio of more than 1000, allowing for reaching the output voltage >10 kV at low input voltage, typically below 25 V. As ionization gas for the PDD, either air or various gas mixtures are used. Despite some similarities with corona discharge and dielectric barrier discharge, the ignition of micro-discharges directly at the ceramic surface makes PDD unique in its physics and application potential. The PDD is used directly, in open discharge structures, mainly for treatment of electrically nonconducting surfaces. It is also applied as a plasma bridge to bias different excitation electrodes, applicable for a broad range of substrate materials. In this review, the most important architectures of the PDD based discharges are presented. The operation principle, the main operational characteristics and the example applications, exploiting the specific properties of the discharge configurations, are discussed. Due to the moderate power achievable by PCPG, of typically less than 10 W, the focus of this review is on applications involving thermally sensitive materials, including food, organic tissues, and liquids.

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Zhang, Longmei, Wensheng Yuan, Chengqian Jin, Yugang Feng, Gangwei Liu, and Yu Hu. "Research Progress on Key Mechanical Components of the Pneumatic Centralized Fertilizer Discharge System." Applied Sciences 14, no. 9 (2024): 3884. http://dx.doi.org/10.3390/app14093884.

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The pneumatic centralized fertilizer discharge system is an important part of pneumatic fertilization machinery and mainly includes a fertilizer discharge device, an air–fertilizer mixing device and a pneumatic distribution device. In this paper, the mechanical structure, key parameters and research methods of pneumatic centralized discharge devices, air–fertilizer mixing devices and pneumatic distribution devices at home and abroad are briefly analyzed. The advantages and disadvantages of these existing devices are summarized, the existing problems are discussed and improvement methods are put forward. In this paper, the structural adaptability, uniformity and stability of the fertilizer discharge of different types of fertilizer discharge devices, such as external groove wheel types, spiral types and centrifugal types, are comprehensively analyzed. The working principle of air–fertilizer mixing devices using the Venturi effect to achieve the uniform mixing of fertilizer and airflow is expounded. The effects of air–fertilizer mixing devices with different structural forms and parameters on mixing performance and the motion characteristics of air–solid two-phase flows are analyzed. The influence of the internal structure, key parameters and distribution mode of pneumatic distribution devices on the uniformity and accuracy of fertilizer distribution are analyzed. This paper focuses on how to improve the uniformity, stability and consistency of discharge across rows provided by the pneumatic centralized fertilizer discharge system. The research status and progress made regarding the core components of the pneumatic centralized fertilizer discharge system at home and abroad are summarized. Based on different research results, the key factors and methods for improving the uniformity of fertilizer discharge are discussed.

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Xiao, Ao, Dawei Liu, Dongcheng He, Xinpei Lu, and Kostya (Ken) Ostrikov. "Plasma Scalpels: Devices, Diagnostics, and Applications." Biomedicines 10, no. 11 (2022): 2967. http://dx.doi.org/10.3390/biomedicines10112967.

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The plasma scalpel is an application of gas discharges in electrosurgery. This paper introduces the device structure and physicochemical parameters of the two types of plasma scalpels, namely, a single-electrode Ar discharge device (argon plasma coagulation) and a two-electrode discharge device in normal saline. The diagnostic methods, including the voltage and current characteristics, optical emission spectroscopy, electron spin resonance, and high-speed imaging, are introduced to determine the critical process parameters, such as the plasma power, the gas temperature, the electron density, and the density of active species, and study the ignition dynamics of the plasma discharges in water. The efficacy of the plasma scalpel is mainly based on the physical effects of the electric current and electric field, in addition to the chemical effects of high-density energetic electrons and reactive species. These two effects can be adjusted separately to increase the treatment efficacy of the plasma scalpel. Specific guidance on further improvements of the plasma scalpel devices is also provided.

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Xu, Wenzhi, Quanchun Yuan, Jin Zeng, and Xiaolan Lyu. "Research Progress Regarding the Precision of Dosing and Distribution Devices for Fertilizers." Applied Sciences 14, no. 7 (2024): 3059. http://dx.doi.org/10.3390/app14073059.

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As a key component of fertilization equipment, the fertilizer discharger has an important impact on the accuracy of the amount of fertilizer applied during the fertilization process. Countries around the world have been advocating for reducing the use of chemical fertilizers and improving fertilizer utilization, and researchers have also conducted in-depth research on precision fertilizer devices. In order to further improve the precision of dosing and distribution devices for fertilizers, in this study, four types of fertilizer dischargers (spiral fertilizer dischargers, groove wheel fertilizer dischargers, disc fertilizer dischargers, and air-feed fertilizer dischargers) which are currently commonly used are thoroughly analyzed. The operating principle and performance characteristics of the fertilizer dischargers are elaborated upon, and the current research status of their structure and working parameter optimization are discussed and summarized. Overall, the research of Chinese researchers is mainly described. The problems existing in research on the precise fertilizer discharge of fertilizer dischargers are pointed out, and the future development trend is predicted, aiming to provide a beneficial reference for improving the technical level of precise fertilizer discharge.

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Salloux, Kurt, James Lim, Bruce Dunn, Pavel M. Chaplya, and Gregory P. Carman. "Rechargeable Lithium Batteries for Powering Piezoelectric Devices." Journal of Intelligent Material Systems and Structures 11, no. 12 (2000): 930–35. http://dx.doi.org/10.1106/36aj-tunu-ep89-8g73.

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A new, rechargeable, thick-film, polymer electrolyte, lithium battery using a high-energy density cathode material (vanadium pentoxide aerogel, 350 mAh/g) has been tested in a pulse-discharge mode of operation. Three separate 12 volt batteries were pulse-discharged through a piezoelectric stack actuator. Since motion rectification devices such as linear motors operate at elevated frequencies, the batteries were pulse-discharged at 10, 100, and 500 Hz. Multiple cycle, charge/discharge data is presented for the three batteries tested in this study. Additionally, a 6 volt battery was fabricated and used to power a piezoelectric actuator patch (chirp source) that was part of a damage detection system.

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Ромащенко, М. А., Д. С. Сеимова, and М. А. Иванов. "AUTOMATED RESISTANCE TESTER OF ELECTRONIC MEANS TO ELECTROSTATIC DISCHARGE." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА, no. 5 (November 19, 2021): 51–58. http://dx.doi.org/10.36622/vstu.2021.15.5.008.

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Рассмотрены основные подходы проверки функциональности электронных средств при воздействии электростатического разряда, а также представлены основные этапы разработки автоматизированного тестера устойчивости электронных средств к электростатическому разряду. Электростатический разряд является одним из основных факторов, способствующих снижению надежности и производительности электронных устройств. Предложен подход к повышению качества разработки электронных изделий на основе автоматизированного устройства для тестирования электронных средств на устойчивость к электростатическим разрядам. Представлена концептуальная структура программно-аппаратного комплекса для оценки влияния электростатического разряда на электронные средства. В конструкции испытательного генератора предусмотрены защитные механизмы, предотвращающие создание непреднамеренных излучаемых или кондуктивных электромагнитных помех импульсного или непрерывного характера для исключения паразитных эффектов, способных оказать влияние на испытуемое или вспомогательное оборудование. Целью исследования, в рамках которого происходила разработка тестирующего устройства, является повышение надежности функционирования электронных средств и приборов при воздействии на них электростатических разрядов. Благодаря предлагаемому подходу становится возможным обеспечить эффективность тестирования конструкций электронных средств на устойчивость к электростатическому разряду на основе комплексных методов оптимального проектирования с учетом обеспечения требований международных стандартов The article discusses the main approaches to checking the functionality of electronic devices when exposed to electrostatic discharge. Electrostatic discharge (ESD) is a major contributor to the reliability and performance of electronic devices. This paper proposes an approach to improving the quality of development of electronic products based on an automated device for testing electronic devices for resistance to electrostatic discharges. We present the conceptual structure of a software and hardware complex for assessing the effect of electrostatic discharge on electronic means. The test generator is designed with protective mechanisms to prevent the creation of unintentional radiated or conducted electromagnetic interference of a pulsed or continuous nature to eliminate parasitic effects that could affect the tested or auxiliary equipment. The purpose of the study, within the framework of which the development of the testing device took place, is to increase the reliability of the functioning of electronic devices and devices when exposed to electrostatic discharges. Thanks to the proposed approach, it becomes possible to ensure the effectiveness of testing the structures of electronic devices for resistance to electrostatic discharge on the basis of complex methods of optimal design, taking into account the requirements of international standards

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Nouri, Anne, and Christian Schmeiser. "Streamers in gas discharge devices." ZAMP Zeitschrift f�r angewandte Mathematik und Physik 47, no. 4 (1996): 553–66. http://dx.doi.org/10.1007/bf00914871.

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Qu, Wentao, and Shuaifeng Zheng. "Development of All-electric Discharge Device for Working String." Academic Journal of Science and Technology 9, no. 3 (2024): 227–31. http://dx.doi.org/10.54097/sp634858.

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Most of the existing pipe string discharge devices in China are suitable for drilling operations, but some auxiliary devices for surface pipe string discharge in workover operations are not mature enough, and there are some problems such as inconvenient transportation, complex structure and large area. Based on the actual situation of small workover operation site, this paper puts forward the scheme of all-electric discharge device for well site operation pipe string, determines the structure function and work flow of the discharge device, carries out structural design for three parts of the lift, conveying device and pipe rack, and analyzes and calculates the structural parameters of the device. Through the static analysis of the main force components, the rationality of the device design is verified, and its structural strength is in line with the safe range.

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Kusakari, Shin-ichi, and Hideyoshi Toyoda. "Electric Discharge-Generating Devices Developed for Pathogen, Insect Pest, and Weed Management: Current Status and Future Directions." Agronomy 15, no. 1 (2025): 123. https://doi.org/10.3390/agronomy15010123.

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Electrostatic techniques have introduced innovative approaches to devise efficient tools for pest control across various categories, encompassing pathogens, insects, and weeds. The focus on electric discharge technology has proven pivotal in establishing effective methods with simple device structures, enabling cost-effective fabrication using readily available materials. The electric discharge-generating devices can be assembled using commonplace conductor materials, such as ordinary metal nets linked to a voltage booster and a grounded electric wire. The strategic pairing of charged and grounded conductors at specific intervals generates an electric field, leading the charged conductor to initiate a corona discharge in the surrounding space. As the applied voltage increases, the corona discharge intensifies and may eventually result in an arc discharge due to the breakdown of air when the voltage surpasses the insulation resistance limit. The utilization of corona and arc discharges plays a crucial role in these techniques, with the corona-discharging stage creating (1) negative ions to stick to pests, which can then be captured with a positively charged pole, (2) ozone gas to sterilize plant hydroponic solutions, and (3) plasma streams to exterminate fungal colonies on leaves, and the arc-discharging stage projecting electric sparks to zap and kill pests. These electric discharge phenomena have been harnessed to develop reliable devices capable of managing pests across diverse classes. In this review, we elucidate past achievements and challenges in device development, providing insights into the current status of research. Additionally, we discuss the future directions of research in this field, outlining potential avenues for further exploration and improvement.

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Orel, Vadym, Oksana Matsiyevska, Bohdan Pitsyshyn, and Vlad Drogan. "Investigation of Preliminary Dilution Process for Return Water before Discharge into Water Body." Energy engineering and control systems 10, no. 2 (2024): 102–9. https://doi.org/10.23939/jeecs2024.02.102.

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One of the methods to intensify the initial dilution process of return water from a sewage treatment facility is to disconnect individual diffuser-type return water discharge devices. It is proposed to perform pre-dilution of return water in a mixer with water from the receiving water body into which they are discharged. The return water should pass into the mixer through the water discharge devices (nozzles) of the distribution pipeline. Empirical research methods were used in this work. The experiments were conducted using the model water. In the hydraulic flume, the water flow was in a calm state, while in the distribution pipeline, the flow regime was turbulent. An increase in return water dilution by 12.2% was achieved by reducing the number of nozzles in the distribution pipeline from seven to four. This confirms the possibility of intensifying the return water dilution by avoiding the interaction between the jets emerging from the discharge devices in the distribution pipeline. If necessary, it is recommended to use the ways of increasing the flow rate of return water from the discharge devices.

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Walraven, Jeremy A., Jerry M. Soden, and Edward I. Cole. "Electrostatic Discharge Susceptibility of Surface Micromachined MEMS." EDFA Technical Articles 4, no. 3 (2002): 11–14. http://dx.doi.org/10.31399/asm.edfa.2002-3.p011.

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Abstract This article presents the results of a study conducted at Sandia National Labs to assess the effect of electrostatic discharge on surface micromachined MEMS devices. This failure mode has largely been overlooked because ESD failure mechanisms often mimic the effects of stiction-adhesion. To measure the susceptibility of MEMS devices to ESD, Sandia engineers built and tested a silicon microengine and a torsional ratcheting microactuator. Test results indicate that the effects of ESD are highly dependent on device design, component stiffness, and geometry and that slight modifications can bring improvements.

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Li, Duan-Jiao, Wen-Xing Sun, Yi-Long Chen, Yu-Hui Chen, and Yi-Dan Hu. "Analysis of the Impact of Partial Discharge Locations on Ultra-High Frequency Signal Propagation Characteristics." Journal of Nanoelectronics and Optoelectronics 19, no. 11 (2024): 1165–70. https://doi.org/10.1166/jno.2024.3676.

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Transformers are critical devices for the functioning of power grids. Partial discharge, the leading cause of insulation failure, has consistently been a central focus in transformer fault detection and the assurance of safe operation. Among the various methods for detecting partial discharges, ultra-high frequency (UHF) is widely employed as measured quantities due to its outstanding sensitivity and strong resistance to interference. However, as UHF signals propagate within the transformer, internal components can easily obstruct them, leading to alterations in their propagation characteristics. These changes can hinder effective fault detection. Therefore, it is crucial to consider how the placement of the discharge source influences UHF signal transmission. In this study, an optimized model based on a real 110 kV device is developed through the Finite-Difference Time-Domain (FDTD) method to examine the dissemination of UHF waves generated by partial discharges. To evaluate the impact of different discharge source locations, simulations are conducted with examples of partial discharges occurring between the winding and the tank wall, as well as between windings. Drawing from the findings, the research investigates the propagation dynamics of UHF electromagnetic signals and analyzes how the discharge source location influences these characteristics.

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Seo, Jeong-Hyun, and Bhum-Jae Shin. "Numerical Study on the Discharge Characteristics of Cylindrical Discharge Devices." Transactions of The Korean Institute of Electrical Engineers 62, no. 7 (2013): 980–86. http://dx.doi.org/10.5370/kiee.2013.62.7.980.

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Cisterna-Osorio, Pedro, Verónica Lazcano-Castro, Gisela Silva-Vasquez, Mauricio Llanos-Baeza, and Ignacio Fuentes-Ortega. "Innovative Effluent Capture and Evacuation Device that Increases COD Removal Efficiency in Subsurface Flow Wetlands." Processes 7, no. 7 (2019): 418. http://dx.doi.org/10.3390/pr7070418.

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The objective of this work is to evaluate the impact of innovative modifications made to conventional effluent capture and discharge devices used in subsurface flow wetlands (SSFW). The main modifications that have been developed extend the influence of the capture and discharge device in such a way that the SSFW width and height are fully covered. This improved innovative device was applied and evaluated in two subsurface flow wetlands, one on a pilot scale and one on a real scale. To evaluate the impact of the innovative device with respect to the conventional one in the operational functioning of subsurface flow wetlands, the elimination of chemical oxygen demand (COD) was measured and compared. The results show that for the innovative device, the COD removal was 10% higher than for the conventional device, confirming the validity and effectiveness of the modifications implemented in the effluent capture and discharge devices used in SSFW.

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Murmantsev, A., A. Veklich, V. Boretskij, A. Shapovalov, and A. Kalenyuk. "Optical Emission Spectroscopy of Magnethron Discharge Ar/Cu Plasma." PLASMA PHYSICS AND TECHNOLOGY 6, no. 1 (2019): 87–90. http://dx.doi.org/10.14311/ppt.2019.1.87.

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Plasma parameters (excitation temperature and electron density) of pulsing magnetron discharge is studied by optical emission spectroscopy. Such discharges are usually used as effective sources in sputtering or deposition processes. Vapor admixtures in argon plasma define mainly the temperature and electron density in such discharges. This is the feature, which is typically takes place in plasma of discharge between contacts/electrodes in switching devices of electric technology circuits.

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I., F. Radzi, H. Nik Ali N., Rameli N., et al. "Partial discharge detection device using ultrasonic sensor on medium voltage XLPE cable." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 17, no. 2 (2020): 886–94. https://doi.org/10.11591/ijeecs.v17.i2.pp886-894.

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There are many methods that have been studied by earlier researchers in order to detect the acoustic properties of Partial Discharge (PD) emitted by PD sources. One of the methods known as ultrasonic sensing on medium voltage Cross-Linked Polyethylene (XLPE) cable was adopted to detect partial discharges on commercial applications, usually by using Acoustic Emission (AE) sensors. This paper presents the processes of designing a PD sensor to detect the acoustic properties of the partial discharges on medium voltage XLPE cable. This PD sensor method works by detecting the partial discharges occurred at the joint of the cable which can act as an early warning device to help minimize the repair and maintenance costs of degrading cable. Result of the experiment shows the complete design of the prototype device, the device after fabrication and the functionality of the device. This design of the prototype can be beneficial for future uses in designing cost efficient and smaller sized PD detection devices. By positioning the sensor in horizontal position directly to the source of PD on the cable, the sensor will be able to detect acoustic properties of PD, by picking up the frequencies beyond 40 kHz. By varying the voltage applied values, a design of experiment (DOE) is carried out accordingly. Result of the experiment shows that the prototype device is functioning as expected, and hence this finding will be very useful to the consumers of power industries as the sensor device can serve as an alternative device to the commercialized PD sensing devices which are bulky and expensive.

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Luo, Donghui, Yongxing Cao, Yu Zhang, Shijun Xie, Chenmeng Zhang, and Shuping Cao. "Study on Structural Parameters and Analysis Method of Soil Successive Impulse Discharge Channel." Energies 14, no. 4 (2021): 877. http://dx.doi.org/10.3390/en14040877.

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The transient analysis model of grounding systems is an important tool to analyze the lightning characteristics of grounding devices. When lightning enters the soil through the grounding device, there is a centralized discharge channel. The spatial structure of the discharge channel in the soil has a great effect on the accuracy of the transient analysis model of the soil impulse discharge. In this paper, based on the gray information analysis method, the volume of successive impulse discharge channels in the ground under various currents and soil conditions is calculated, and the changing law with time interval is analyzed. According to the experimental results, an analysis method of the model considering the discharge channel structure is proposed, and an example is analyzed. The results show that the time interval has an effect on the volume of the discharge channel. In a certain range, the volume of the channel increases with the time interval of successive impulse discharges. Taking the critical breakdown electric field strength as the judgment condition and the residual resistivity as the variable, the development process of the discharge channel can be simulated. The calculated results of the model are close to the experimental results.

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Greason, W. D., and S. Bulach. "Constant energy device test for electrostatic discharge (ESD) of semiconductor devices." IEEE Transactions on Industry Applications 33, no. 1 (1997): 286–97. http://dx.doi.org/10.1109/28.567133.

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Wu, Dong Yan, Zhi Liang Tan, Li Yun Ma, and Peng Hao Xie. "The Failure Modeling Analysis of Bipolar Silicon Transister Device Caused by ESD." Applied Mechanics and Materials 427-429 (September 2013): 929–32. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.929.

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With the development of electronic technology, the electronic threats faced by microwave semiconductor devices was increasingly serious.In order to study the electrostatic discharge damage mechanism of bipolar silicon transistors, this paper analyzed the basic physical characteristics of bipolar transistor in electrostatic discharge, such as kirk effect and current crowding effect. Through analysis the human body electrostatic discharge model, established the ESD electric injury model of bipolar silicon transistor. If we knew the production process parameter of devices, we can calculate the ESD damage threshold for designing bipolar silicon device and providing a theoretical basis of parameter optimization. Finally the common ESD damage criterion were analyzed from different angles.

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Wang, Xin Jun, Ya Ping Kong, Ji Ding Chen, and Xue Xin Liu. "Present Status about Wastewater Treatment at Highway Affiliated Facilities of China." Advanced Materials Research 356-360 (October 2011): 2673–77. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.2673.

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The present status about wastewater treatment at highway affiliated facilities of China including characteristics of wastewater and treatment technology, the effect of wastewater treatment were investigated. It was found that wastewater quantity was mainly depending on traffic volume entering the service area. Integrated process of wastewater treatment was the main technology used at highway affiliated facilities. 80.4% of the total devices discharge the water which can meet the “Integrated Wastewater Discharge Standard (8978-1996)”. About 69.6% of water was discharged into the road ditches, 22.2% was used for greening and flushing toilet. 3.9% of water evaporated naturally, 2.7% of water was discharged into the river, and only 1.6% was used for agricultural irrigation. The results provided scientific reference for the construction, improvement and management of wastewater treatment device at highway affiliated facilities by relevant departments in the future.

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Yong, Taein, Chaebong Lee, Seongseop Kim, and Jaeho Kim. "Battery Life Prediction for Ensuring Robust Operation of IoT Devices in Remote Metering." Applied Sciences 15, no. 6 (2025): 2968. https://doi.org/10.3390/app15062968.

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Primary batteries are extensively employed as power sources in Internet of Things (IoT) devices for remote metering. However, primary batteries maintain a relatively consistent discharge voltage curve over a long period before experiencing a full discharge, making it challenging to predict the battery’s life. In this study, we introduce a battery life prediction method to ensure the robust operation of IoT devices in remote metering applications. The robust battery life prediction process is divided into two stages. The first stage involves predicting the state of charge (SOC) to enable real-time remote monitoring of the battery status of metering devices. In the second stage, IoT devices implement a hardware-based alerting mechanism to provide warnings prior to complete discharge, leveraging a custom-designed Multi-Stage Discharge battery architecture. In the first stage, we developed the CNN-Series Decomposition Transformer (C-SDFormer) model, which is capable of accurately predicting the SOC of primary batteries. This model was specifically designed to support the real-time monitoring of battery status in large-scale IoT deployments, enabling proactive maintenance and enhancing system reliability. To validate the performance of the C-SDFormer model, data were collected from smart remote meters installed in households. The model was trained using the collected data and evaluated through a series of experiments. The performance of the C-SDFormer model was compared with existing methods for SOC prediction. The results indicate that the C-SDFormer model outperformed the traditional methods. Specifically, the SOC prediction achieved a mean absolute error (MAE) of less than 4.1%, a root mean square error (RMSE) of less than 5.2%, a symmetric mean absolute percentage error (SMAPE) of less than 7.0%, and a coefficient of determination (R2) exceeding 0.96. These results demonstrate the effectiveness of the C-SDFormer model in accurately predicting the SOC of primary batteries. For the second stage, a Multi-Stage Discharge (MSD) primary battery was developed to ensure a hardware-based low battery alert before the battery is fully discharged. This battery was designed to ensure the reliable operation of IoT devices, especially those whose batteries are not proactively managed through real-time monitoring in the first stage. By providing a low battery alert, the MSD battery reduces the risk of unexpected device shutdowns. This feature enhances the overall reliability of IoT devices, ensuring their continuous operation in remote metering applications.

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Radzi, I. F., N. H. Nik, N. Rameli, et al. "Partial discharge detection device using ultrasonic sensor on medium voltage XLPE cable." Indonesian Journal of Electrical Engineering and Computer Science 17, no. 2 (2020): 886. http://dx.doi.org/10.11591/ijeecs.v17.i2.pp886-894.

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There are many methods that have been studied by earlier researchers in order to detect the acoustic properties of Partial Discharge (PD) emitted by PD sources. One of the methods known as ultrasonic sensing on medium voltage Cross-Linked Polyethylene (XLPE) cable was adopted to detect partial discharges on commercial applications, usually by using Acoustic Emission (AE) sensors. This paper presents the processes of designing a PD sensor to detect the acoustic properties of the partial discharges on medium voltage XLPE cable. This PD sensor method works by detecting the partial discharges occurred at the joint of the cable which can act as an early warning device to help minimize the repair and maintenance costs of degrading cable. Result of the experiment shows the complete design of the prototype device, the device after fabrication and the functionality of the device. This design of the prototype can be beneficial for future uses in designing cost efficient and smaller sized PD detection devices. By positioning the sensor in horizontal position directly to the source of PD on the cable, the sensor will be able to detect acoustic properties of PD, by picking up the frequencies beyond 40 kHz. By varying the voltage applied values, a design of experiment (DOE) is carried out accordingly. Result of the experiment shows that the prototype device is functioning as expected, and hence this finding will be very useful to the consumers of power industries as the sensor device can serve as an alternative device to the commercialized PD sensing devices which are bulky and expensive.

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Chakkaew, Anusorn, and Wisut Titiroongruang. "Electrostatic Control and New Device Handling Consideration for MEMS Manufacturing Process." Advanced Materials Research 378-379 (October 2011): 659–62. http://dx.doi.org/10.4028/www.scientific.net/amr.378-379.659.

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Electrostatic potential and electrostatic discharge (ESD) has been a factory issue for years, not only limited to semiconductor-based electronic devices, but there are evidences that new devices from emerging technologies become sensitive which are MEMS and NEMS. This paper describes new electrostatic control and device handling solutions for critical electrostatic control environment for MEMS manufacturing processes. There are experiments of personnel grounding devices, device handling materials, and evaluation of static control surfaces.

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Kurt, H., E. Koc, and B. G. Salamov. "Atmospheric Pressure DC Glow Discharge in Semiconductor Gas Discharge Electronic Devices." IEEE Transactions on Plasma Science 38, no. 2 (2010): 137–41. http://dx.doi.org/10.1109/tps.2009.2036920.

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van Kan, P. L., J. C. Houk, and A. R. Gibson. "Output organization of intermediate cerebellum of the monkey." Journal of Neurophysiology 69, no. 1 (1993): 57–73. http://dx.doi.org/10.1152/jn.1993.69.1.57.

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1. The goal of this study was to investigate the motor organization of monkey nucleus interpositus (NI) and neighboring regions of the lateral nucleus (NL) by correlating discharge of single neurons with active movements. Neurons were surveyed during free-form movements as well as during operation of six devices that required movement about specific forelimb joints. The paradigm allowed us to test the hypothesis that discharge of individual cells relates to movements about individual joints. 2. One hundred sixty-two isolated nuclear neurons from two monkeys were studied. Eighty-three percent showed large increases in discharge (an average of 3 times resting rate for forelimb neurons) during movement of one body part, either forelimb, hindlimb, mouth/face, or eyes. 3. Anterior interpositus contains neurons related to hindlimb movement in anterior regions and neurons related to forelimb movement in posterior regions. A mouth/face-related area exists in the dorsal-posterior regions and is continuous with a mouth/face area in the dorsal regions of NL. Posterior interpositus (NIP) showed no clear separation between forelimb and hindlimb neurons: forelimb neurons were encountered throughout the nucleus, and hindlimb neurons were encountered in the medial-anterior two thirds. A distinct eye movement area exists in lateral, posterior, and ventral regions of NIP. This area borders regions of NL that also contain eye movement-related neurons. 4. Forelimb interpositus neurons discharged strongly during reach and grasp; discharge rates were recorded for 41 neurons during a stereotyped reach and the average depth of modulation was 149 imp/s. Nineteen neurons that modulated during device tracking were also tested during reaching, and the depth of modulation was much greater during reaching. 5. Fifty-nine forelimb neurons were tested with device tracking. Twenty-seven (46%) produced no audible modulation, regardless of the joint being exercised. The remaining 32 neurons modulated during movement on at least one device (mean depth of modulation = 84 imp/s). Comparison of discharge during use of different devices revealed no strong evidence for device-specific discharge. 6. Discharge modulations during device tracking were phasic, preceded movement, and, for a small number of cells, showed consistent parametric relations to duration, amplitude, and velocity of movement. 7. Despite a clear somatotopy within NI and NL, there is no finer mapping based on active movements about individual joints within forelimb regions. Discharge modulation depends on movements involving the whole limb. Progress in understanding the function of intermediate cerebellum depends on determining the variables required to elicit consistent and high modulation of neural discharge.(ABSTRACT TRUNCATED AT 400 WORDS)

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Chen, Lintao, Xiangwu Deng, Zhaoxiang Liu, Xiangwei Mou, Xu Ma, and Rui Chen. "Design and Test of Disturbed Fertilizer Strip-Ejection Device with Vertical Pendulum Bar Based on Discrete Element Method." Agriculture 14, no. 4 (2024): 635. http://dx.doi.org/10.3390/agriculture14040635.

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Fertilizer can improve the yield of crops per unit area, and uniform fertilizer discharge can improve the fertilizer utilization rate. Therefore, it is meaningful to improve the performance of fertilizer-discharge devices in order to improve the modernization level of crop field fertilizer management. To address the problems of operational smoothness, stability and poor uniformity of fertilizer discharge, and other difficult problems encountered with strip fertilizer-discharge devices, this study designs a disturbed fertilizer strip-discharge device with a vertical pendulum. The main factors affecting the performance of fertilizer discharge were the wedge angle of the push-disturbing main pendulum bar (PMPB), the inclination angle of the aided-stirring pendulum pick (APP), the flow gap of the pendulum bar (FGPB), and the operation frequency of the swing-rod combination (SRC). The discrete element method (DEM) was used to establish a simulation model of the fertilizer device to explore the influence of the main factors on the performance of fertilizer discharge, with the coefficient of variation (CV) of fertilizer discharge uniformity and fertilizer discharge accuracy (FDA) used as the evaluation indices. The results show that the factors affecting the CV of fertilizer discharge uniformity and FDA were, in order of priority, the operation frequency of the SRC, the FGPB, the wedge angle of the PMPB, and the inclination angle of the APP. The optimal parameters after rounding were as follows: the wedge angle of the PMPB was 45°, the inclination angle of the APP was 46°, the operation frequency of the SRC was 188 times/min, and the FGPB was 4.5 mm. At this point, the model predicted that the CV of fertilizer discharge uniformity would be 10.53%, and that the FDA would be 3.19%. Using the optimal parameters for bench test verification, it was found that the wedge angle of the PMPB was 45°, the inclination angle of the APP was 46°, the operation frequency of the SRC was 188 times/min, the FGPB was 4.5 mm, the CV of the uniformity of the fertilizer discharge was 11.06%, and the FDA was 3.51%. In the test, the fertilizer-discharge device was stable and had good adaptability to different fertilizers. The results of this study can provide a theoretical reference for the development of precision strip-fertilizer application devices.

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Abdelaziz, Ayman A., Yoshiyuki Teramoto, and Hyun-Ha Kim. "Unveiling the formation and control of unique swirling discharge pattern in helium plasma candle device." Journal of Physics D: Applied Physics 55, no. 6 (2021): 065201. http://dx.doi.org/10.1088/1361-6463/ac3036.

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Abstract The generation of a large cold plasma jet while maintaining the reproducibility and homogeneity of the discharge is one of the major challenges encountered by the plasma community to efficiently apply this technology in the industry. Here, we report on the discharge in a recently developed device called the plasma candle (PC), wherein a stable plasma jet with a diameter of 20 mm can be generated at atmospheric pressure and temperature. Unlike the discharge morphology previously reported for conventional plasma jet devices, the unique configuration of PC device resulted in distinctive discharge patterns. Homogenous discharge was generated in the electrode gap and followed by a swirling discharge toward the tube nozzle. Fast photography and electrical measurements revealed that filament propagation and its morphology form the visually observable swirl discharge. Detailed analysis indicated that residual helium metastable species (Hem) and their penning ionization play an essential role in the discharge mode and its transition, which was verified by changing the feeding gas and the frequency of the applied voltage. For instance, it is found that only filamentary discharge was observed along the entire tube at frequencies less than 3 kHz, at which the time between consecutive discharges was long enough for Hem decay. Consequently, the homogenous discharge pattern was recovered by increasing the pre-ionization levels by adding a trace of impurities (N2, O2 or H2O) to the feeding gas. However, the level of these impurities must be carefully adjusted to achieve a homogenous discharge without negatively affecting the jet properties. A trivial change in the gas impurity, in the range of adsorption and desorption of water from the gas tubing, is sufficient to cause a noticeable change and instability in the discharge mode. This finding is critical to predicting the production of reactive species and plasma-surface interaction for different applications.

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HATORI, Hiroaki, Osamu TANAIKE, Yasushi SONEDA, and Masaya KODAMA. "Capacitor devices for rapid charge/discharge storage." Synthesiology 6, no. 4 (2013): 228–37. http://dx.doi.org/10.5571/synth.6.228.

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HATORI, Hiroaki, Osamu TANAIKE, Yasushi SONEDA, and Masaya KODAMA. "Capacitor devices for rapid charge/discharge storage." Synthesiology English edition 6, no. 4 (2013): 222–31. http://dx.doi.org/10.5571/syntheng.6.222.

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Vinson, J. E., and J. J. Liou. "Electrostatic discharge in semiconductor devices: an overview." Proceedings of the IEEE 86, no. 2 (1998): 399–420. http://dx.doi.org/10.1109/5.659493.

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Vinson, J. E., and J. J. Liou. "Electrostatic discharge in semiconductor devices: protection techniques." Proceedings of the IEEE 88, no. 12 (2000): 1878–902. http://dx.doi.org/10.1109/5.899057.

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Dwyer, V. M., A. J. Franklin, and D. S. Campbell. "Electrostatic discharge thermal failure in semiconductor devices." IEEE Transactions on Electron Devices 37, no. 11 (1990): 2381–87. http://dx.doi.org/10.1109/16.62296.

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Soda, Y., and T. Oda. "Modeling of contact discharge between floating devices." Journal of Physics: Conference Series 301 (June 23, 2011): 012052. http://dx.doi.org/10.1088/1742-6596/301/1/012052.

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Chiasserinia, C. F., and R. R. Rao. "Stochastic battery discharge in portable communication devices." IEEE Aerospace and Electronic Systems Magazine 15, no. 8 (2000): 41–45. http://dx.doi.org/10.1109/62.861772.

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Machajski, Jerzy, and Dorota Olearczyk. "ANALYTICAL VERIFICATION OF OUTLET DEVICES CAPACITY OF LUBACHÓW STORAGE RESERVOIR ON THE BYSTRZYCA RIVER." Studia Geotechnica et Mechanica 35, no. 2 (2013): 49–66. http://dx.doi.org/10.2478/sgem-2013-0023.

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Abstract The Lubachów storage reservoir was built in the 1920’s. It is equipped with a relatively complex outlet installation, operating in variable hydraulic regime. The discharge deviations curves elaborated by German engineers for individual devices, after verification turned out to be burdened with a comparatively big error. This concerns especially the front spillway as well as intermediate outlets, and to a smaller degree the bottom outlets. The authors made a detailed analytical verification of the outlet installations and found great deviations from the currently valid discharge curves for these devices. Based on the analysis of conditions of computational discharges passage through the reservoir, they proved a high potential threat of water flow over the dam crest.

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Lyubimova, T. P., A. P. Lepikhin, and Y. N. Parshakova. "Numerical simulation of wastewater discharge into water objects to improve discharge devices." Computational Continuum Mechanics 12, no. 4 (2019): 427–34. http://dx.doi.org/10.7242/1999-6691/2019.12.4.36.

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Yamamoto, Emiri, Shinsuke Akita, Sanae Ikehara, et al. "Application and Evaluation of Plasma Generated by Asymmetric Surface Discharge on the Ceramic Surface to Hemostatic Equipment." Plasma Medicine 14, no. 3 (2024): 23–36. https://doi.org/10.1615/plasmamed.v14.i3.20.

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The use of plasma-based processes has been growing in the manufacturing and processing materials through advances in discharge technology. We sought to investigate whether plasma generation units of an asymmetric surface dielectric barrier discharge (AS-GDBD) could be used as hemostatic devices based on our previous research into using medical device for hemostasis that employs a glow dielectric barrier discharge. AS-GDBD acts as a plasma source that plays an essential performance in ozonizers or air purifiers. Developing a device as a prototype for clinical use could generate visible ionized gas emitted from the ionized gas accesory, also called "plasma flare," exceeding 5 mm in length via AS-GDBD on a ceramic surface. A series of in vitro and in vivo experiments showed that plasma flare by AS-DBD effectively promoted aggregation of albumin and clot forming and achieved hemostasis in live mice. Because of the shock resistance of the discharge units with ceramic materials, we consider the hemostatic equipment more durable than the other low-energy ionized gas hemostatic equipment. Additionally, the ceramic device has the competitive advantage of mass-production manufacturing. Therefore, the hemostatic devices market will widely accept the production of plasma medical equipment using AS-DBD.

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Yusupov, R. Yu, V. A. Glushchenkov, and A. N. Maslov. "MULTIFUNCTIONAL PULSE-MAGNETIC INSTALLATION WITH VARIABLE SHAPE AND PARAMETERS OF THE DISCHARGE CURRENT." Izvestiya of Samara Scientific Center of the Russian Academy of Sciences 24, no. 3 (2022): 85–92. http://dx.doi.org/10.37313/1990-5378-2022-24-3-85-92.

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The paper considers methods and circuitry for creating a multifunctional pulse-magnetic installation with variable parameters of the discharge current for forming of pulsed magnetic fields. The installation is designed to conduct comprehensive research on the effect of the magnetic field on various materials in mechanical engineering, medicine, pharmacology and plant growing. Currently, traditional designs of the installations operate in a single-discharge mode and generate oscillatory shaped pulses of current in the form of a damped sinusoid. The developed installation with power intensity of 5 kJ operates in four modes: oscillatory discharge of one energy storage device with a high frequency of the discharge current, synchronous discharge of two energy storage devices, asynchronous discharge of two storage devices with an adjustable delay relative to each other, and in the mode of forming a mono-pulse with a cutoff of the current of subsequent half-cycles. The paper presents the block diagram of the multifunctional pulse-magnetic installation (PMI), provides recommendations on the selection of the main components when creating specialized installations for solving specific tasks. The results of testing the PMI are given.

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Bilkova, Eva, Jiri Soucek, Ketevan Tskhakaia, and Petr Nowak. "Hydraulic Structures as Flow Measuring Devices." Environmental and Climate Technologies 27, no. 1 (2023): 16–27. http://dx.doi.org/10.2478/rtuect-2023-0002.

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Abstract Discharge measurement is the base of proper water management. The effective design and operation of hydraulic structures under both normal and extreme flow conditions depend on the quality of hydrological data. Understanding the water system requires consistent and long-term measurement. Despite that, the gauging station network is sparse, and its numbers are declining worldwide. This article aims to draw attention to the possibility of accurate flow measurement using existing hydraulic structures. Flow over a hydraulic structure profile is a physically well-defined phenomenon as the construction shape is fixed and simple compared to river profiles. The discharge can be derived from rating curves, turbine characteristics, and several easily measured variables. That allows continuous discharge measurement. The accuracy is compared with the gauging station on the river. Suitable technical solutions for ensuring and monitoring ecological flow are discussed.

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Deng, Bin, Ze-Xin Guan, Xue-Feng Ma, et al. "Research and Application of Calibration Device for Fire Emergency Lighting Detector." Journal of Physics: Conference Series 2574, no. 1 (2023): 012005. http://dx.doi.org/10.1088/1742-6596/2574/1/012005.

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Abstract In order to solve the problem of quantitative traceability of detection devices for fire emergency lighting and evacuation indication systems. Method analysis and research were conducted on parameters such as emergency switching time, emergency working time, DC charging voltage, DC discharge voltage, DC charging current, DC discharge current, environmental test temperature, and environmental test humidity. We searched for appropriate calibration methods for the technical characteristics of each parameter and designed a set of calibration devices for fire emergency lighting detectors. The test results show that the technical indicators of the calibration device can meet the traceability requirements of the fire emergency lighting and evacuation indication system.

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ONGUN, Erhan, and KURT Hatice Hilal YÜCEL. "Spatiotemporal Modeling and Simulation of DC Microplasma Glow Discharges in the ZnSe-Ar/H2 System." Inspiring Technologies and Innovations 3, no. 1 (2024): 1–8. https://doi.org/10.5281/zenodo.12544420.

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With their unique electrical and optical properties, microplasmas have become the focus of great interest in the broad field of plasma science and engineering in designing advanced materials and devices, including light sources, photodetectors, and microplasma field effect transistors. This conceptual research study was carried out for the numerical analyzes of gas discharge-semiconductor microplasma (GDSµP) systems in the COMSOL Multiphysics program. Plasma modeling was based on the electron energy distribution using Maxwell analytic function. Zinc selenide (ZnSe), a type II-VI compound semiconductor, was modeled as the cathode electrode with a micro-digitated electron emission surface, coupled to a micro discharge gap of unary argon (Ar) and binary argon/hydrogen (Ar/H2) gases. Bandgap tunable ZnSe has attracted the attention of researchers for various optoelectronic applications, including high-efficiency and fast-response infrared imaging devices in the near-to-mid infrared spectrum. The binary gas system consisted of argon mixed with 10% molar hydrogen. Spatiotemporal distribution patterns of the main discharge parameters were plotted across 100 µm long discharge gap of a two-dimensional square chamber in gases media at 250 Torr sub atmospheric pressure. Microscale normal glow discharges were generated under electric field fed with a constant voltage of 1300 VDC in a virtual electrical equivalent circuit (EEC). GDSµP cells were simulated to explore the fast transient discharge parameters, including electron density (ED), electron current density (ECD), and electric potential (EP). It was figured out that microplasma devices combined with gas discharge-semiconductor systems can be specifically designed for infrared detector and image converter applications.

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Moroney, DA, and K. Powers. "Outpatient use of left ventricular assist devices: nursing, technical, and educational considerations." American Journal of Critical Care 6, no. 5 (1997): 355–62. http://dx.doi.org/10.4037/ajcc1997.6.5.355.

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Improvements in technology and in the selection, care, and treatment of patients have led to wider clinical use of mechanical circulatory support. Considerable progress has been made with the use of left ventricular assist devices. Patients are currently maintained in outpatient facilities until a donor heart becomes available; recently, left ventricular assist devices have started to be used as permanent implants. This article outlines the steps that are taken to prepare the patient, the patient's family, and the medical staff for discharge from the hospital of a patient supported with a left ventricular assist device. Extensive technical and clinical training of the primary caregiver and the patient is required to prepare for discharge from the hospital. Data are rapidly accumulating that show that left ventricular assist devices are safe and efficacious for outpatient use. Similar success is expected in clinical trials of permanent left ventricular assist devices, suggesting that many more patients will benefit from this technology in the future.

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Unseld, Matthias, Timon Wnendt, Christian Sebesta, et al. "From Hospital to Home: Interdisciplinary Approaches to Optimise Palliative Care Discharge Processes." International Journal of Environmental Research and Public Health 22, no. 7 (2025): 1023. https://doi.org/10.3390/ijerph22071023.

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The transition from hospital-based palliative care to home care is a critical phase often marked by logistical, medical, and emotional challenges. Effective discharge planning is essential to ensure continuity of care, yet gaps in communication, interdisciplinary coordination, and access to resources frequently hinder this process. This qualitative study explored key barriers, related support needs, and strategies for optimising palliative care discharge through semi-structured interviews with 28 participants, including healthcare professionals, recently discharged palliative care patients, and primary caregivers. Reflexive thematic analysis revealed five main themes: (1) discharge planning and coordination; (2) symptom management and medication; (3) psychosocial support; (4) communication and information; (5) the role of assistive devices and home care services. Discharge processes were often late or unstructured. Poor interdisciplinary collaboration and a lack of caregiver preparation also contributed to hospital readmissions and emotional distress. By focusing on needs, our analysis identifies not only what was lacking but also what is required to overcome these barriers. Our findings suggest that standardised discharge protocols and checklists, earlier planning, structured communication tools, and improved integration of home care services could enhance patient outcomes and reduce caregiver burden. Addressing psychosocial needs and ensuring timely access to assistive devices are also crucial. Strengthening interdisciplinary collaboration and refining discharge practices can facilitate smoother transitions and improve the quality of palliative care at home.

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Muzafarov, Sh M., V. E. Balitsky, B. K. Togaev, A. Babayev, and O. Kilichov. "Analysis of the double-side power supply for electronic-ion technology devices with pulse voltage." IOP Conference Series: Earth and Environmental Science 1142, no. 1 (2023): 012012. http://dx.doi.org/10.1088/1755-1315/1142/1/012012.

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Abstract This article provides an analysis of existing high voltage power supply devices for devices of electron-ion technology, in particular devices for cleaning gases from aerosol particles. Advances in this technology are described. The following are the disadvantages of the electric fields of a corona discharge when powered by a constant high voltage. To increase the efficiency of catching aerosol particles, the authors propose to combine self-sustained and non-sustained discharges in one discharge gap. To do this, it is proposed to use unipolar high-voltage pulses with a constant component and pulses with a duty cycle of more than 5. An analysis is made of the possibility of increasing the efficiency of the impact of electric fields when using circuits with two-sided power supply, the analysis of which makes it possible to increase the pulse repetition rate, as well as to regulate the process of the impact of electric fields on processed particles., regulation by the parameter of impulse voltage.

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de Fazio, Roberto, Donato Cafagna, Giorgio Marcuccio, and Paolo Visconti. "Limitations and Characterization of Energy Storage Devices for Harvesting Applications." Energies 13, no. 4 (2020): 783. http://dx.doi.org/10.3390/en13040783.

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This paper aims to study the limitations and performances of the main energy storage devices commonly used in energy harvesting applications, namely super-capacitors (SC) and lithium polymer (LiPo) batteries. The self-discharge phenomenon is the main limitation to the employment of SCs to store energy for a long time, thus reducing efficiency and autonomy of the energy harvesting system. Therefore, the analysis of self-discharge trends was carried out for three different models of commercial SCs, describing the phenomenon in terms of self-discharge rate and internal resistance. In addition, physical interpretations concerning the self-discharge mechanism based on the experimental data are provided, thus explaining the two super-imposed phenomena featured by distinct time constants. Afterwards, the dependence of self-discharge phenomenon from the charging time duration (namely, SCs charged at 5 V and then kept under charge for one or five hours) was analyzed; by comparing the voltage drop during the self-discharge process, a self-discharge reduction for longer charging durations was obtained and the physical interpretation provided (at best −6.8% after 24 h and −13.4% after 120 h). Finally, self-discharge trends of two commercial 380 mAh LiPo batteries (model LW 752035) were acquired and analyzed; the obtained results show an open circuit voltage reduction of only 0.59% in the first 24 h and just 1.43% after 124 h.

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Nazarov, V. I., V. M. Retivov, D. A. Makarenkov, A. P. Popov, G. R. Aflyatunova, and N. A. Kuznetsova. "Development of a Safe Technology for the Processing of lithium-ion Batteries, Including the Stages of Discharging in Saline Ssolutions and Granulation of Target Products." Ecology and Industry of Russia 27, no. 10 (2023): 4–11. http://dx.doi.org/10.18412/1816-0395-2023-10-4-11.

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It was shown that when disposing of complex chemical power sources (CCPS), they must be subjected to a preliminary discharge to a safe residual voltage of 1 V maximum. The data of foreign studies on the discharge of Lithium-Cobalt, Lithium-Nickel-Cobalt-Manganese and Lithium-Manganese batteries (LCO, NCM, LMO batteries, respectively) by various methods were analyzed. The results of experimental studies of battery discharges in NaCl 5, 10, 15 wt.% and Na2CO3 10 wt.% solutions were presented. It was found that the discharge in saline solutions proceeds by electrolysis. It was confirmed that the use of Na2CO3 leads to the hydrolysis of carbonates. The graphs show the dependences of the discharge of various batteries on the discharge time and the hydrodynamic parameters of the agitator according to the Reynolds criterion (ReM). The composition of precipitation formed during the discharge of the battery was determined. Recommendations were developed on the regime parameters of mixing devices and the safe discharge procedure.

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POLYAKOV, D. A., and M. A. KHOLMOV. "DEVELOPMENT OF PARTIAL DISCHARGE SIGNAL PROCESSING ALGORITHMS FOR CALCULATING THEIR CHARACTERISTICS." Actual Issues Of Energy 4, no. 1 (2022): 052–57. http://dx.doi.org/10.25206/2686-6935-2022-4-1-52-57.

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The paper describes the process of developing algorithms for processing information about partial discharges based on their registered electrical signals. The analysis is carried out and the most important characteristics of partial discharges are determined. They allow assessing the insulation condition. Taking into account the technical principles of operation of signal recording devices, algorithms have been developed for determining the apparent charge of each partial discharge, the average and maximum apparent charge, the power of partial discharges, and also phase-resolved partial discharge patterns plotting. A solution is given for registering the phase of the supply voltage at the frequency of registration of partial discharges. The results of the work can be used to develop software for the means of registration and analysis of the characteristics of partial discharges.

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Zhou, Fang. "Development of high voltage electric pulse charging and discharging device based on functional materials." 3C TIC: Cuadernos de desarrollo aplicados a las TIC 12, no. 2 (2023): 77–95. http://dx.doi.org/10.17993/3ctic.2023.122.77-95.

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As a relatively mature energy storage technology, charge/discharge devices are bound to develop significantly in the contemporary society among them energy is increasingly scarce. The traditional charging and discharging device is not smart enough, slow charging and discharging and other shortcomings have limited its further high-speed development. The application of functional materials and high-voltage pulse technology can drive the further development of charging and discharging devices. In this study, a safe, low-cost, functional material with high adsorption capacity was developed. At the same time, this functional material is applied to the charging and discharging device to improve the storage capacity and discharge efficiency of the device. In addition, we combine high-voltage electric pulse technology with charging and discharging technology to improve the charging and discharging rate of the charging and discharging device. It has certain guidance and reference values for the development of high-voltage electric pulse charging and discharging devices. According to the test results, the dynamic adjustment time of the charging module output current is only 20ms, and the dynamic adjustment response time of the discharging module input current is about 0.14s. The device provides a new idea for the development of high-voltage electric pulse charging and discharging equipment.

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Zhang, Tianyi, Qiang Cui, and Yuwei Zeng. "A Novel TCAD Methodology of Robustness Evaluation for HV ESD Protection Devices." Journal of Physics: Conference Series 2809, no. 1 (2024): 012042. http://dx.doi.org/10.1088/1742-6596/2809/1/012042.

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Abstract Second breakdown current (It2) is an important merit of Electrostatic discharge (ESD) protection devices, and it is especially critical for high voltage ESD design. The device physics involved in ESD phenomena are highly complex as ESD devices operate at high current condition within a short period of time. Technology Computer Aided Design (TCAD) simulation offers faster design optimization and quantitative evaluation of robustness, which can significantly improve ESD device’s robustness. However, an accurate TCAD simulation requires accurate modelling of sophisticated device physics. Due to the ESD’s high stress nature, understanding and modelling of such device physics are non-trivial. We applied TCAD 2D simulation to a high voltage Silicon-controlled Rectifier (SCR), 2D simulation to diode and 3D simulation to diode with different sizes. Based on comparisons of two ESD modes (HBM and CDM) and two transmission line pulses (TLP and VFTLP) simulation data, the simulation method is self-consistent and shows effective It2 prediction ability. The above-mentioned TCAD simulation method can help accelerate design iteration of ESD design and find more optimized ESD device structures.

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