Article
Engineering, Electrical & Electronic
Usama Anwar, Zhaoyi Liu, Dejan Markovici
Summary: This article presents an analysis and design of a high-efficiency, 6.78-MHz burst-mode controlled inductive wireless power transfer system without back-channel communication. The power flow between the transmitter and receiver is controlled through load modulation. By utilizing the inherent load modulation properties of the system, the need for traditional back-channel communication is eliminated. Experiments show that the quality factor of the transmitter can be detected to eliminate the back-channel communication. The proposed system only requires an additional switch in the receiver power stage to regulate the output voltage.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Article
Chemistry, Analytical
Juan M. Romero-Arguello, Anh-Vu Pham, Christopher S. Gardner, Brad T. Funsten
Summary: This paper presents the design and development of miniature coils for wireless power and data transfer through metal, demonstrating successful power and data transfer through aluminum using harvested power.
Article
Engineering, Electrical & Electronic
Xiaodong Qing, Zuojin Li, Xueying Wu, Zhe Liu, Lei Zhao, Yugang Su
Summary: This article proposes a hybrid wireless power transfer (HWPT) system that achieves load-independent and anti-misalignment characteristics by utilizing the compensation inductors of the capacitive power transfer (CPT) system. Experimental results show that the HWPT system has a higher output current compared to the CPT system.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Mohammad Javad Karimi, Catherine Dehollain, Alexandre Schmid
Summary: Effective power management is essential for wirelessly powered implants to have a long operational lifetime, ensuring optimized power and preventing damage. This brief introduces a power feedback control unit for wirelessly powered biomedical devices, including an implanted voltage level detector and limiter. The feedback control bits can be transmitted as uplink data or used autonomously to prevent overvoltage. The system is implemented in a 180 nm CMOS process, consuming 144 μW at a supply voltage of 1.8 V and a chip area of 0.02255 mm(2).
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2023)
Article
Engineering, Marine
Tianchu Luo, Shaowei Zhang
Summary: This study designed a wireless power transmission system suitable for underwater scenes and analyzed its operational characteristics. The transmission efficiency of the system in seawater was calculated using a calculation method, and a coupler design scheme was provided with experimental verification.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Review
Computer Science, Information Systems
Iman Okasili, Ahmad Elkhateb, Timothy Littler
Summary: This article classifies, describes, and compares different aspects of wireless power transfer systems for electric vehicle battery charging, focusing on inductive power transfer. It covers compensation schemes, converter topologies, control methods, and coil structures. The article also addresses other important aspects such as coil design, infrastructure, cost, and safety standards. The aim is to explain the technology and its importance in promoting the widespread adoption of electric vehicles.
Article
Engineering, Electrical & Electronic
Bin Yang, Binshan Zhang, Zeheng Zhang, Ying Luo, Ruikun Mai, Zhengyou He, Yang Chen
Summary: This article proposes a clamped inductive power transfer (IPT) system to improve antimisalignment ability through dual-mode operation, without the need for coupling identification, output detection, or feedback communication. Experimental results show that the proposed method can maintain stable output power between 440 and 480 W with coupling varying from 0.14 to 0.39, while the efficiency is from 83.22% to 93.55%.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Civil
Feng Li, Xuan Sun, Siqi Zhou, Yuhang Chen, Zhibin Hao, Zhanning Yang
Summary: This paper investigated the impact of pavement material magnetization on resonant inductive coupling in wireless power transfer systems. The experiment revealed that the magnetization properties of pavement materials altered the active power and efficiency of the system. Adjusting component parameters and waterproofing between pavement layers can help mitigate the effects of magnetization and environmental factors on power transfer efficiency.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Brian S. Gu, Tharindu Dharmakeerthi, Seho Kim, Michael J. O'Sullivan, Grant A. Covic
Summary: This article proposes a reduced ferrite inductive power transfer system for electric vehicle charging, which uses ferrite-based soft magnetic composites to reduce system cost and improve mechanical robustness. The optimized system reduces ferrite volume by 63% and exhibits minimal deterioration in terms of coupling reduction and magnetic field leakage.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Amjad Iqbal, Muath Al-Hasan, Ismail Ben Mabrouk, Abdul Basir, Mourad Nedil, Hyoungsuk Yoo
Summary: This article introduces an efficient WPTS for multipurpose biomedical implants, which includes an implantable antenna, rectifier, and WPT Tx. The system can transfer data and recharge devices simultaneously. The components operate at 1470 MHz, with the self-diplexing antenna also working at 915 MHz.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2021)
Article
Chemistry, Analytical
Tom van de Steene, Emmeric Tanghe, Luc Martens, Carmine Garripoli, Stefano Stanzione, Wout Joseph
Summary: This study investigates wireless power transfer for deep in-body receivers, determining the optimal frequency, power budget, and design for the transmitter and receiver. The research finds that 13.56 MHz frequency yields the best performance for power transfer, and validates the effectiveness of the power transfer through measurements. This study provides the feasibility of long-term sensing in the gastrointestinal tract using mm-sized receivers.
Article
Computer Science, Information Systems
Jure Domajnko, Natasa Prosen
Summary: This paper presents the evolution of an inductive wireless power transfer using a multicoil system. The proposed structure, called the double DDQ coil structure, consists of double DD coils on the transmitter and receiver side upgraded with an additional nonpolar quadrature coil. The main advantage of this structure is increased power density and increased misalignment tolerance.
Article
Engineering, Electrical & Electronic
Bin Yang, Yiyang Li, Zeheng Zhang, Shuangjiang He, Yuner Peng, Yang Chen, Zhengyou He, Ruikun Mai
Summary: This article analyzes the impact of misalignment on the performance of an inductive power transfer system and proposes a method to maintain stable power transmission. By adopting two discrete frequencies, the coupling range is extended and the efficiency is improved.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Energy & Fuels
Mattia Simonazzi, Ugo Reggiani, Leonardo Sandrolini
Summary: This study investigates the possibility of increasing transmission efficiency in mid-range wireless power transfer applications by inserting resonant relay coils. The results show that the current distribution depends on the load and receiver position, and the theoretical findings are validated through experimental measurements.
Article
Engineering, Electrical & Electronic
Alexis Narvaez, Claudio Carretero, Ignacio Lope, Jesus Acero
Summary: The article presents the optimization procedure of an inductive power transmission (IPT) system using large size spiral printed circuit board (PCB) coils for high-power transfer. The use of PCBs for coil assembly provides advantages in the manufacturing process and offers a low-profile device suitable for space-constrained applications. The study explores the application of Litz-structure braiding techniques to achieve high energy efficiency in the PCB-based IPT system coils.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Plant Sciences
Liting Gao, Shuzhen Jia, Lu Cao, Yingjuan Ma, Junling Wang, Di Lan, Guangyan Guo, Jianfang Chai, Caili Bi
Summary: Soil salinity is a serious problem for agriculture worldwide, causing detrimental effects on plant growth, development, and crop yield. This study discovered that the TaFBA-2A gene from wheat negatively regulates jasmonic acid biosynthesis and enhances salt tolerance and crop yield in transgenic rice lines.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2022)
Article
Endocrinology & Metabolism
Di -Hui Lan, Yue Zhang, Bing Hua, Jin-Shui Li, Yi He, Hui Chen, Wei -Ping Li, Hong -Wei Li
Summary: This study found that obese and overweight patients undergoing pPCI for STEMI have better survival rates compared to normal weight patients. Obese patients also have a lower risk of microvascular obstruction and a smaller area at risk/left ventricular mass.
DIABETES METABOLIC SYNDROME AND OBESITY-TARGETS AND THERAPY
(2022)
Article
Computer Science, Artificial Intelligence
Huanjie He, Jiuzhen Liang, Zhenjie Hou, Lan Di, Yunfei Xia
Summary: This paper proposes a multi-pose face reconstruction model (MPFR) to generate available face information and overcome the effect of pose changes on face recognition. The MPFR model combines Gabor-based dictionary learning methods to learn discriminant features. The experimental results demonstrate the application of the MPFR model in face recognition.
APPLIED INTELLIGENCE
(2023)
Article
Physics, Multidisciplinary
Shu-Shan Zhou, Yu-Jun Yang, Yang Yang, Ming-Yue Suo, Dong-Yuan Li, Yue Qiao, Hai-Ying Yuan, Wen-Di Lan, Mu-Hong Hu
Summary: In this study, high-order harmonic generation of the cyclo[18]carbon (C-18) molecule under few-cycle circularly polarized laser pulse was investigated using time-dependent density functional theory. Compared to the harmonic emission of the ring molecule C6H6 with similar ionization potential, the C-18 molecule exhibits higher efficiency and cutoff energy under the same laser field parameters. Further research suggests that the harmonic efficiency and cutoff energy of the C-18 molecule increase gradually with the increase of laser intensity or decrease of the driving laser's wavelength, and they are both greater than those of the C6H6 molecule. Analysis of the time-dependent evolution of electronic wave packets reveals that the higher efficiency of harmonic generation in the C-18 molecule is attributed to its larger spatial scale, which provides a greater chance for ionized electrons from one atom to recombine with others of the parent molecule. Selecting the suitable driving laser pulse demonstrates that high-order harmonic generation in the C-18 molecule has a wide range of applications in producing circularly polarized isolated attosecond pulses.
Review
Materials Science, Multidisciplinary
Zhenguo Gao, Kai Yang, Zehao Zhao, Di Lan, Qian Zhou, Jiaoqiang Zhang, Hongjing Wu
Summary: Currently, metal-organic framework (MOF)-derived nano-micro architectures are being actively researched for their electromagnetic wave absorption capabilities, which are enhanced by their flexible composition and structural manipulation for improved dielectric and magnetic attenuations. However, the fundamental design principles in MOF-derived microwave absorption materials have not been summarized. This review analyzes the design principles in these materials from the perspectives of diverse monomers (ligands and ions of MOFs), topologies, chemical states, and physical properties. It also comprehensively summarizes the essential information regarding the EM wave absorption mechanism and the structural-functional dependency. Finally, it proposes a clear insight into the challenges and perspectives of the industrial revolution upgrading in this promising field.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Chemistry, Physical
Gaoyuan Zhai, Mingdi Lan, Shiying Liu, Guojian Li, Zhiwei Wang, Qiang Wang
Summary: In this study, Ag-doped beta-Cu2-xSe films were prepared using the vacuum thermal evaporation method. The distribution of Cu+ on the octahedral 32(f) sites in the Cu2Se crystal was tuned by the Ag content. It was found that when the Ag content was 1.0%, the Cu+ and Ag+ contents in the 32(f) sites reached their maximum, resulting in a power factor of 1750 μW·m-1·K-2 at 530 K. However, as the Ag content increased, the appearance of the second phase CuAgSe led to a decrease in the power factor. The results showed that controlling the distribution of Cu+ by Ag doping is beneficial for improving the thermoelectric properties of beta-Cu2-xSe films.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Dan Wu, Yiqun Wang, Shuanglin Deng, Di Lan, Zhongning Xiang, Qinchuan He
Summary: This study successfully synthesized heterogeneous CoFe@N-doped porous carbon polyhedron composites with heterojunctions and porous structures. The composites exhibited enhanced dielectric properties and realized a synergistic effect of dielectric loss and magnetic loss, thus achieving the synthesis of wide bandwidth, thin thickness, and high performance microwave absorbing materials.
Article
Computer Science, Artificial Intelligence
Lan Di, Shishuang Deng, Jiuzhen Liang, Hao Liu
Summary: This study proposes a textile defect detection method based on context receptive field and adaptive feature fusion. By improving the backbone network and designing an adaptive feature fusion network, this method achieves good performance in textile defect detection.
Article
Materials Science, Multidisciplinary
Jinbin Cui, Shang Sun, Mingdi Lan, Shiying Liu, Yongjun Piao, Guojian Li, Qiang Wang
Summary: The low-dimensional carbon composite is expected to improve the electrical conductivity and reduce the thermal conductivity of thermoelectric materials. This study investigated the effects of different dimensions of carbon (fullerene, carbon nanotubes, and graphene) on the thermoelectric properties of ZnO:Al films. The results showed that the lower the dimension of carbon, the higher the carrier concentration, and the better the thermoelectric performance. Among the three composites, the carbon nanotube composite exhibited the best thermoelectric performance with a power factor of 136.5 mu K-1(-2) at room temperature.
Article
Chemistry, Physical
Di Lan, Hongjun Zhou, Hongjing Wu
Summary: In this study, ice crystals were used as templates for polymerization to obtain polymer precursors with directional channels, and then ternary polymer sponges with oriented pore channels were designed and synthesized using a secondary template method. The study material exhibited a Poisson's ratio of 1.52 and absorbed 5.1 mJ/cm3 energy in a single compression cycle at 25% longitudinal strain. It also showed over 90% absorption efficiency for X-band EM waves at a thickness of 4 mm. The flexibility of polymer molecular chains and the arrangement of oriented pores contribute to its negative Poisson's ratio property, while the conversion of quinone bipolaron to monopolaron structure is key to the loss of EM energy during the absorption process.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Yuanyuan Wei, Beidi Lan, Tao Zheng, Lin Yang, Xiaoxia Zhang, Lele Cheng, Gulinigaer Tuerhongjiang, Zuyi Yuan, Yue Wu
Summary: This study demonstrates the crucial role of GSDME and pyroptosis in atherosclerosis. Inhibiting these pathways could potentially reduce the pathology associated with atherosclerotic disease.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Wendi Lan, Xinyu Wang, Yue Qiao, Shushan Zhou, Jigen Chen, Jun Wang, Fuming Guo, Yujun Yang
Summary: By using numerical methods, we theoretically explored the high-order harmonic generation process when atoms interact with high-intensity two-color ultrashort laser pulses. The symmetry of the laser pulse's electric field is broken in this process. Through controlling the electric field generated by an IR laser and its second harmonic, we were able to control the produced electric field at subcycle level, which showed significant enhancement in harmonic efficiency compared to fundamental laser pulses. The enhancement is attributed to fast ionization of electrons and short ionization-recombination time.
Article
Engineering, Electrical & Electronic
Zhiwei Wang, Mingdi Lan, Shiying Liu, Guojian Li, Gaoyuan Zhai, Qiang Wang
Summary: By treating the Zn4Sb3 films with periodic pulsed electric field, the diffusion of zinc atoms into the films is achieved, leading to improved thermoelectric properties. The diffusion mode and the resulting electrical properties depend on the pulse period. For pulse periods smaller than 10 s, interstitial zinc atoms diffuse first, increasing carrier concentration and decreasing resistivity. Increasing the pulse period to 100 s leads to the diffusion of more zinc atoms through interstitial position, resulting in the formation of a small amount of ZnSb phase and decreasing carrier concentration while increasing the Seebeck coefficient.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Chemistry, Physical
Dan Wu, Yiqun Wang, Shuanglin Deng, Di Lan, Zhongning Xiang, Qinchuan He
Summary: In this study, heterogeneous CoFe@N-doped porous carbon polyhedron composites were successfully synthesized, and the dielectric properties of the composites were enhanced by the replacement of metal ions, resulting in a synergistic effect of dielectric loss and magnetic loss. With its unique structural design and optimized impedance matching, the material exhibited excellent microwave absorption performance.
Article
Optics
Shu-Shan Zhou, Wen-Di Lan, Ji-Gen Chen, Jun Wang, Fu -Ming Guo, Yu -Jun Yang
Summary: This study investigates the high-order harmonic generation of long-chain molecules 1-nonene (C9H18) and 1,3-Butadiene (C4H6) in a few-cycle laser field using time-dependent density-functional theory. The efficiency and cutoff frequency of C9H18 harmonics are found to be higher than those of BF molecules irradiated by the same laser pulse. The harmonics generated near the cutoff energy are caused by electron recombination between atoms in the parent molecule. Additionally, the harmonics generated by C4H6 can be used to produce high-intensity isolated attosecond pulses.
