Article
Engineering, Chemical
Alex Martynenko, Tadeusz Kudra
Summary: DC power is more energy-efficient than AC power for EHD drying, with benefits such as enhanced drying rate and lower specific energy consumption. The specific energy consumption of a 2 x 2 discharge electrode is consistently smaller than the 1 x 1 one, indicating the importance of emitter spacing in process efficiency.
Review
Multidisciplinary Sciences
Di Liu, Linglin Zhou, Zhong Lin Wang, Jie Wang
Summary: This study summarizes the recent progress in research on TENG, covering from AC-TENG to DC-TENG, including the design and applications of constant current TENG, showing their similarities and differences for guiding future research.
Article
Energy & Fuels
Jiting Jian, Zeping Zhang, Shixue Wang, Jinke Gong
Summary: Among the three control strategies (TVCS, NEPCS, FCICS) proposed to prevent lithium deposition during alternating current preheating, this paper analyzed their applicability boundaries by measuring the electrochemical impedance spectrum (EIS) of a three-electrode model cell at different temperatures and SOC. The results showed that both TVCS and NEPCS had limitations, leading to either lithium deposition or exceeding the cut-off voltage. Based on the analysis, a strategy combining NEPCS and TVCS was proposed to control the terminal voltage without lithium deposition.
Article
Chemistry, Multidisciplinary
Vivian Wang, Yingbo Zhao, Ali Javey
Summary: The use of alternating current voltage in electroluminescent devices with carbon nanotube contacts allows for efficient electroluminescence from various molecular materials. By optimizing device geometry, driving parameters, and material characteristics, the performance of these devices can be enhanced and limitations of conventional direct current schemes can be overcome. These AC-driven electroluminescent devices show promise in achieving internally efficient electroluminescence with different material thicknesses and energy barrier heights.
ADVANCED MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Yi Luo, Yin Zhang, Muyi Tang, Youbin Zhou, Ying Wang, Defu Cai, Haiguang Liu
Summary: The paper proposes a novel hybrid AC/DC receiving end grid planning method, uses the backtracking search algorithm (BSA) to solve the optimal planning, and verifies the effectiveness through case studies.
Article
Chemistry, Physical
Pitchiah E. Karthik, Vasanth Rajendiran Jothi, Sudhagar Pitchaimuthu, SungChul Yi, Sengeni Anantharaj
Summary: AC techniques are less commonly used in photoelectrocatalysis, but have great potential in further understanding interfaces and energy conversion reactions. Techniques like Mott-Schottky and intensity-modulated photocurrent spectroscopy can lead to advancements in the field.
Article
Automation & Control Systems
Danilo I. Brandao, Rhonei P. dos Santos, Waner Wodson A. G. Silva, Thiago R. Oliveira, Pedro Francisco Donoso-Garcia
Summary: This article proposes a centralized energy management approach for coordinated control of a hybrid ac/dc microgrid, aiming to improve efficiency and ensure uniform operation of energy storage units in different modes.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Renan Pillon Barcelos, Drazen Dujic
Summary: This paper analyzes the impact of the dc transformer location on the system's characteristics and proposes an expansible methodology to predict the system performances for future dc grids, which is independent of the ac grid backup solutions. The theoretical developments are validated using simulations, and the steady-state and impedance identification process is described in detail.
IEEE TRANSACTIONS ON SMART GRID
(2022)
Article
Engineering, Electrical & Electronic
Anshuman Shastri, Irfan Ullah, Benito Sanz-Izquierdo
Summary: This paper describes dual operations of AC current sensing and Bluetooth transmission using a reconfigurable slot antenna. A novel current sensing setup is created by connecting a tunable antenna to a current transformer and AC/DC converter. It can detect the power and current monitoring in household electrical devices, providing an energy-efficient solution while also operating as a transmitter via Bluetooth.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Jianchao Zhao, Wei Li, Xin'an Yuan, Xiaokang Yin, Qinyu Chen, Jianming Zhao
Summary: In this article, a lift-off point of intersection (LOI) feature is discovered for the first time from the raw signals of ACFM for the elimination of spurious signals caused by lift-off variations. A theoretical model is established to analyze the effect of lift-off variations on the characteristic signals of ACFM. Validation experiments show that the novel Bx signal plotted by LOI amplitude has no spurious signals caused by lift-off variations and can accurately evaluate the crack depth as with traditional Bx signals.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Physics, Multidisciplinary
Lewis Wooltorton, Peter Brown, Roger Colbeck
Summary: Two parties sharing entangled quantum systems can generate nonlocal correlations, which can be used for device-independent random number generation, and the upper bound of certifiable randomness can be quantified using the CHSH value.
PHYSICAL REVIEW LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Xiaoyan Zhou, Lixin Wang, Xiangxiang Zhang, Yan Qiu
Summary: In this study, a TiO2 thin film was deposited on a p-type silicon substrate to form a TiO2/SiO2/p-Si heterojunction, which exhibited good photosensing performance. The electrical properties and energy-band structure of the heterojunction were investigated, showing a decrease in resistance and impedance with increasing light intensity, while the capacitance value increased.
Article
Automation & Control Systems
Junpeng Ma, Chunlin Zhang, Peng Wang, Shunliang Wang, Tianqi Liu
Summary: This article proposes a series impedance measurement device (SIMD) for impedance measurement of the inverter. The SIMD is connected in series between the grid and the inverter, and a LC resonance shunt is used to address the issue of limited switching frequency. A control scheme is also proposed to suppress the fundamental current and oscillation. Experimental tests validate the proposed topology and control strategy.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Kailun Zhong, Yuru Wang, Gang Lyu, Jin Wei, Jiahui Sun, Kevin J. Chen
Summary: This study demonstrates a 650V/84mil normally-off GaN/SiC cascode device and evaluates its static and dynamic characteristics. The cascode device combines a low-voltage enhancement-mode GaN HEMT for normally-off gate control and a 650V normally-on SiC JFET for high-voltage blocking capability. The cascode device exhibits various desired features for applications and shows excellent switching performance.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Engineering, Multidisciplinary
Dong-Hun Chae, Mattias Kruskopf, Jan Kucera, Jaesung Park, Ngoc Thanh Mai Tran, Dan Bee Kim, Klaus Pierz, Martin Goetz, Yefei Yin, Pavel Svoboda, Petr Chrobok, Francois Couedo, Felicien Schopfer
Summary: In this work, the stability of p-doped graphene-based QHR devices under both direct and alternating currents was investigated. Polymer-encapsulated devices were transported in an over-pressurized chamber to improve stability. The results showed that the quantized resistance remained consistent with the standard value at direct current, and good reproducibility was achieved at alternating current.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2022)
