A5104222004- Gas Sensing Nanomaterials and Sensors
- Wireless Power Transfer Systems
- Energy Harvesting in Wireless Networks
- Photoacoustic and Ultrasonic Imaging
- Analytical Chemistry and Sensors
- Innovative Energy Harvesting Technologies
- 2D Materials and Applications
- Ultrasound and Hyperthermia Applications
- Advanced Surface Polishing Techniques
- Diamond and Carbon-based Materials Research
- Electronic and Structural Properties of Oxides
- Ultrasound Imaging and Elastography
- Power Transformer Diagnostics and Insulation
- High voltage insulation and dielectric phenomena
- Blood groups and transfusion
- Semiconductor materials and devices
- Electrical and Bioimpedance Tomography
- Lightning and Electromagnetic Phenomena
- Ultrasound and Cavitation Phenomena
- Topological Materials and Phenomena
- Acoustic Wave Resonator Technologies
- Analog and Mixed-Signal Circuit Design
- Electrical and Thermal Properties of Materials
- HVDC Systems and Fault Protection
- MXene and MAX Phase Materials
Xi'an Jiaotong University
2008-2024
Minzu University of China
2023-2024
Baotou Research Institute of Rare Earths
2024
Beihang University
2024
State Key Laboratory of Electrical Insulation and Power Equipment
2023
East China Normal University
2023
In this letter, we took a first principles calculation of five SF <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">6</sub> decomposition gas molecules (SO xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> , H S, SOF SO F and ) adsorption on monolayer MoTe . By calculating energy, charge transfer, work function combined with differential density analysis, predict that is sensitive selective to the molecule. Furthermore, total states analysis...
Polymorphism in two-dimensional (2D) materials presents a fertile ground for introducing new functionalities and designing novel architectures. Here, using first-principles calculations, we investigate the polymorphs of monolayer $1T\text{\ensuremath{-}}{\mathrm{TaTe}}_{2}$, including high-symmetry phase various charge density wave (CDW) phases ($3\ifmmode\times\else\texttimes\fi{}1, 4\ifmmode\times\else\texttimes\fi{}1, 3\ifmmode\times\else\texttimes\fi{}3,...
This passage discusses the high voltage direct current (HVDC) cable employed in submarine power transmission and its weaknesses, specifically factory joint. The recovered process of insulation when manufacturing joint involves reheating bulk near them, which can cause changes dielectric properties crystalline morphology cross-linked polyethylene (XLPE). result accumulated space charge distorted electric field at interface between recovery due to a mismatch parameters. paper use both...
Application of ultrasound (US) has been demonstrated as an effective way to realize thrombus dissolution. Cavitation is hypothesized be important mechanism US thrombolysis, but the relationship between quantified cavitation and thrombolysis efficiency not studied extensively. The purpose this work was study focused feasibility dose efficiency. Porcine clots were cut into small pieces inserted rubber tubes, then placed in focal zone a 1.2 MHz source transducer water tank. At same time,...
Abstract This paper simulates and measures a compact broadband rectifier for voltage doubler Schottky diode. Among them, two‐stage microstrip line impedance matching network doubling circuits is used. The imaginary part of the diode limited by short‐circuit branch. conversion transmission matches to 50 Ω. in circuit only realized lines, which reduces physical size makes more compact. Judging measurement results from 0.8 2.5 GHz, efficiency greater than 30% at 0 dBm, bandwidth 103%, maximum...
In modular multilevel converter (MMC) based high voltage direct current (HVDC) system, configuring a certain number of redundant submodules (SMs) is simple and effective way to improve the system reliability under SMs failure. However, SM control seamless transition during faulty replacement are critical issues. This paper analyzes semi-hot with phase shifted carrier pulse width modulation (PSC-PWM) nearest level (NLM) strategies, respectively. The principles two strategies introduced, MMC...
A low-power reconfigurable successive approximation register (SAR) analog-to-digital converter (ADC) for portable ultrasound systems is presented. The ADC features a high power-efficiency 8-to-12-bit capacitive digital-to-analog (CDAC), and "1-step" switching scheme proposed to further reduce the energy of CDAC. body-biasing technique employed calibrate offset comparator. operates at 6.25 MS/s in 9-to-12-bit modes can operate 50 8-bit mode. Designed 40-nm CMOS technology, SAR achieves...
In this paper, a compact broadband microwave rectifier for ambient RF energy harvesting is proposed. the proposed structure, impedance matching in wide frequency band realized only by using L-shaped network of two transmission lines, thereby reducing physical size and achieving design rectifier. Through theoretical analysis simulation, shows good bandwidth performance. The rectification efficiency greater than 40 % range 1.23 ~ 2.69 GHz (a 50%) at 0 dBm. more 60 1.37 2.44 8 dBm, maximum...
In this paper, a novel kind of structure-based high-efficiency rectifier for wireless power transfer (WPT) was presented. The impedance matching network structure consists two microstrip lines. output is zero at the higher harmonics and unlimited fundamental frequency impedance-matching. simulation results designed show that relative bandwidth 41.7 % (1.9-2.9 GHz) 2 dBm input, electrical efficiency conversion (PCE) RF to DC exceeds 50 %. remains over 60% across range from 1.95 2.85 GHz...