A5071033259- Advanced Power Amplifier Design
- Radio Frequency Integrated Circuit Design
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Wireless Power Transfer Systems
- Magnetism in coordination complexes
- Geotechnical Engineering and Soil Mechanics
- Metallurgical Processes and Thermodynamics
- GaN-based semiconductor devices and materials
- Adsorption and biosorption for pollutant removal
- Crystallography and molecular interactions
- Soil and Unsaturated Flow
- Geotechnical Engineering and Soil Stabilization
- Magnesium Alloys: Properties and Applications
- Aluminum Alloy Microstructure Properties
- Metal Alloys Wear and Properties
- Aluminum Alloys Composites Properties
- Microstructure and Mechanical Properties of Steels
- 2D Materials and Applications
- Geotechnical Engineering and Underground Structures
- Rock Mechanics and Modeling
- Arsenic contamination and mitigation
- Coagulation and Flocculation Studies
- Advanced DC-DC Converters
- Dye analysis and toxicity
Chongqing University
2012-2025
Zhengzhou University
2022
China University of Petroleum, Beijing
2021
Daqing Oilfield General Hospital
2021
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering
2018
Southern Methodist University
2015
This article presents the methodology for designing triple-mode Doherty power amplifier (DPA) with multi-band operation and extended high efficiency range. It is illustrated that three different modes can be realized by simply re-setting gate bias voltages while DPA circuits keep unchanged. By employing a novel reciprocal architecture, five bands have been achieved proposed larger than 9 dB The active load modulation process theoretical performance of are analyzed in detail each mode. For...
The soil–water characteristic curve (SWCC) model considering the temperature effect is significant in precisely predicting relationship between matric suction and degree of saturation unsaturated soils geotechnical geoenvironmental engineering. In this work, we derived a new temperature-dependent wetting coefficient, incorporating nonlinear enthalpy immersion per unit area. We introduce simplified expression that successfully approximates coefficient for temperatures 273.15 373.15 K....
This paper presents the theory and design method of a wideband Doherty power amplifier (DPA) using inverse continuous class-F mode (ICFM). It is illustrated that class-F-1 impedance condition can be achieved for operation simple load modulation network (LMN). The required LMN parameters corresponding process are analyzed calculated in theory. post-matching architecture then employed to realize proposed ICFM-DPA with equivalent transmission line (TL) based LMN, which absorbs parasitic package...
Laser cladding by cold-wire feeding is known as an efficient method due to its advantages, such near 100% material utilization, high deposition rate, and flexible adaptation the position. However, it has very stringent requirements on operative conditions, a small range of wire rate precise The aim this work was investigate laser hot-wire technique, which improved productivity stability process significantly with respect cladding. external preheating filler resulted in reduction required...
A modified coupling model, considering microsegregation, precipitation and growth of inclusion, variable solute partition coefficient (ki), was established to investigate the coarsening TiN inclusion for 0.053 wt% Ti-microalloyed steel. The influence on steel impact toughness revealed. Results show that effect phase composition both kTi kN is greater than temperature, are in range from 0.20 0.30 0.28 0.45 during solidification, respectively. change ki different crystalline phases...
This article presents an in-depth exploration of the circuit architecture and design approach for broadening high-efficiency range dual-mode symmetrical Doherty power amplifiers (DPAs). To enhance performance across a broader spectrum, modified load modulation network (LMN) is introduced, leveraging reciprocal gate bias configuration to support expanded exceeding 6 dB two distinct operational bands. corroborate efficacy our proposed DPA architecture, we designed constructed prototype...
The fabrication of a cationic polyacrylamide (CPAM) with high efficiency and economy has been highly desired in the field high-turbidity water treatment. This study introduced an ultrasound (US)-initiated template polymerization (UTP) method to develop novel templated (TPAA) microblock structure. TPAA was prepared using acrylamide (AM) sodium (3-acrylamidopropyl)trimethylammonium chloride (ATAC) as monomers polyacrylate (NaPAA) template. Factors that affected such power, time, initiator...
The magnetic field-temperature phase diagrams and spin-spin correlations of quasi-two-dimensional ferromagnetic ${\mathrm{Cr}}_{2}{\mathrm{Ge}}_{2}{\mathrm{Te}}_{6}$ ${\mathrm{Cr}}_{2}{\mathrm{Si}}_{2}{\mathrm{Te}}_{6}$ antiferromagnetic $\mathrm{Mn}{\mathrm{Bi}}_{2}{\mathrm{Te}}_{4}$ are investigated compared by a sensitive composite magnetoelectric method. disclose triple point around the Curie temperature where three phases coexist, for both $H\ensuremath{\parallel}c$ axis $ab$ plane...
Shallow landslides often occur in unsaturated soil slopes under seepage conditions. The shear strength of soils is one the key factors evaluating stability these slopes. Due to high nonlinearity envelope soils, common criteria cannot fully capture characteristics all soils. Based on effective stress with a matric suction, power-type criterion was proposed for various from literature studies. In addition, performance better than that two commonly used modeling test data Furthermore, applied...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagneto-structural correlations and ESR spectra of dinuclear copper(II) complexes thiophenophane ligands containing thioether donor atomsC. Robert Lucas, Shuang Liu, Laurence K. ThompsonCite this: Inorg. Chem. 1990, 29, 1, 85–88Publication Date (Print):January 1990Publication History Published online1 May 2002Published inissue 1 January 1990https://pubs.acs.org/doi/10.1021/ic00326a018https://doi.org/10.1021/ic00326a018research-articleACS...