A5066240557- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Advanced Power Amplifier Design
- Radio Frequency Integrated Circuit Design
- Supercapacitor Materials and Fabrication
- Advanced Sensor and Energy Harvesting Materials
- Machine Fault Diagnosis Techniques
- Gas Sensing Nanomaterials and Sensors
- Advanced battery technologies research
- Conducting polymers and applications
- Robotics and Sensor-Based Localization
- Advanced DC-DC Converters
- Structural Health Monitoring Techniques
- PAPR reduction in OFDM
- Full-Duplex Wireless Communications
- Electric Motor Design and Analysis
- Fault Detection and Control Systems
- Calibration and Measurement Techniques
- ZnO doping and properties
- Dielectric materials and actuators
- Semiconductor materials and devices
- Sensorless Control of Electric Motors
- Infrared Target Detection Methodologies
- Cellular and Composite Structures
Shandong University of Science and Technology
2021-2025
Hubei University
2018-2025
Beijing University of Chemical Technology
2022-2023
Donghua University
2023
Harbin University of Science and Technology
2023
Dalian University
2022
Dalian University of Technology
2022
Qingdao Center of Resource Chemistry and New Materials
2021
Northwestern Polytechnical University
2021
Shenyang Institute of Automation
2013-2020
Abstract The layered transition‐metal‐oxide materials are one type of promising cathode for sodium‐ion batteries, which typically include P2, P3, and O3 phases, each has its own advantages challenges. Taking into account the complementarity single‐phase structure, constructing composite structures is an efficient pathway to stabilize structure improve electrochemical performance. Herein, three owning phase P3/P2, P2/O3, P3/P2/O3 prepared by changing calcinating conditions without introducing...
Emergency situation awareness during sudden natural disasters presents significant challenges. Traditional methods, characterized by low spatial and temporal resolution as well coarse granularity, often fail to comprehensively capture disaster situations. However, social media platforms, a vital source of sensing, offer potential supplement situational awareness. This paper proposes an innovative framework for based on multimodal data from identify content related typhoon disasters....
Recent developments of self-powered devices and systems have attracted much attention. Lead zirconate titanate (PZT) has been regarded as one the most promising materials for building high-performance nanogenerators. Herein, vertically aligned PZT nanorod arrays were synthesized on a pre-oxidized Ti substrate in presence surfactant by one-step hydrothermal method. The consist an initial layer film well nanorods with (001)-orientated tetragonal single crystalline structures. exhibited high...
Abstract Single crystallization of LiNi x Co y Mn 1‐x‐y O 2 (NCM) is currently an effective strategy to improve the cycling life NCM cathode, owing reduced surface area and enhanced mechanical strength, but application single crystal NCM(SC‐NCM) being hindered by severe particle agglomeration poor C‐rate performance. Here, a three‐section‐sintering(TSS) with presence grain‐growth inhibitor was proposed, in which, TSS includes three sections phase‐formation, phase‐preservation. While,...
Undoped and Ga-doped indium oxide nanowires are synthesized by chemical vapor deposition methods. And single nanowire devices fabricated micro-nano processing technology. The electrical optoelectronic properties of the undoped studied. When work as a field effect transistor, after Ga doping, transistor changes from depletion mode to enhancement mode. hysteresis is suppressed. dark current photodetector decreases. From transfer characteristic curves, decrease 4.5 × 10 −7 A 7.3 −14 at V gs = 0...
This paper presents a general architecture of adaptive digital predistorter (DPD) for stand-alone radio frequency (RF) power amplifiers (PAs). The input and output the proposed are both RF signals, which is compatible with PA. DPD system consists three parts: PA linearization, front-ends two down-conversion paths one up-conversion path, field-programmable gate array (FPGA) board ADC/DACs. enjoys cost performance advantages baseband predistortion while extending coverage to applications...
Transmission signals of modern communication systems, such as orthogonal frequency-division multiplexing signals, usually have large peak-to-average power ratio. These are sensitive to the amplifier's nonlinearity, which generates both in-band distortion and out-of-band spectral regrowth. The adaptive digital predistortion (DPD) is an efficient linearization technique without sacrificing efficiency. To estimate DPD coefficients, numerical instability computational complexity bottlenecks. In...
Dual-band or multi-band RF power amplifiers (PAs) have attracted a lot of attention in recent years as they rise to the challenge segmented spectrum allocation wireless systems. Adaptive digital predistortion (DPD) for concurrent dual-band PAs evolves from existing DPD single-band PAs. In this paper, we derive baseband Volterra model corresponding passband model. addition, computational complexity estimation algorithm increases dramatically number coefficients is much larger than that DPD....
The insights into cation storage in the shallow surface of bulk GE provided by <italic>in situ</italic> XRD and Raman spectroscopy is combination intercalation pseudocapacitance dominated latter.
Space-charge-limited (SCL) current density for time-invariant injection (under long-pulse condition) via the diode cathode is maximum transportable density, while it can be leveraged higher when pulselength becomes shorter than transmit time electrons (i.e., under short-pulse condition). However, both limits mentioned above apply condition and role of time-varying remains elusive. In this paper, we numerically investigate SCL electron flow with time-variant injection. Using particle-in-cell...
Tail-biting codes are efficient coding techniques to eliminate the rate loss in conventional known-tail convolutional at a cost of increased complexity decoders. In addition, tail-biting trellis representation block makes trellis-based maximum likelihood (ML) decoder desirable for implementation. Circular Viterbi algorithm (CVA) is introduced decode its decoding efficiency. However, process suffers from circular traps, which degrade this paper, we propose an checking rule detection traps....
Volterra model or memory polynomial are commonly used to describe the nonlinearity with effects for power amplifier (PA) modeling as well digital predistorter designs. Different monomial terms of highly correlated, which become a challenge during fixed-point implementation coefficients estimation data matrix is ill-conditioned. Previous works derived orthogonal basis functions eliminate correlation among different terms. Conversely, models PAs predistorters work in oversampled domain capture...
Hydrogen (H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> ), carbon monoxide (CO), and some hydrocarbon gases such as methane (CH4), ethane (C H xmlns:xlink="http://www.w3.org/1999/xlink">6</inf> ethylene H4) acetylene ) are the typical fault extracted from transformer oil. Based on framework of Density Function Theory (DFT), tin oxide SnO surface model, gas molecular models adsorption were built, responsibility. A first principles...