A5030734002- Radio Frequency Integrated Circuit Design
- Advancements in PLL and VCO Technologies
- Photonic and Optical Devices
- Semiconductor materials and devices
- Analog and Mixed-Signal Circuit Design
- Semiconductor Lasers and Optical Devices
- Microwave Engineering and Waveguides
- Power Systems and Technologies
- Bone Tissue Engineering Materials
- Social Acceptance of Renewable Energy
- Advanced Text Analysis Techniques
- Power System Reliability and Maintenance
- Smart Grid Energy Management
- Digital Marketing and Social Media
- Electromagnetic Compatibility and Noise Suppression
- Sentiment Analysis and Opinion Mining
- ZnO doping and properties
- IoT Networks and Protocols
- Water-Energy-Food Nexus Studies
- Advanced Fiber Optic Sensors
- Thin-Film Transistor Technologies
- Energy and Environment Impacts
- Digital Filter Design and Implementation
- Optimal Power Flow Distribution
- Acoustic Wave Resonator Technologies
Xi'an Jiaotong University
2025
Huazhong University of Science and Technology
2011-2024
Policy Research Center for Environment and Economy
2024
Ministry of Ecology and Environment
2024
Shanghai Electric (China)
2024
Dalian University of Technology
2020
Nanjing University of Posts and Telecommunications
2018
Xiamen University
2014
This paper presents a fractional-N all-digital phase-locked loop (ADPLL). A 4-bit multi-delay line time-to-digital converter (MDL-TDC) using path selection technique is proposed to achieve 4-ps resolution with 0.24-mW power consumption at 52 MS/s. TDC offset calibration method used eliminate metastability. An isolated constant-slope digital-to-time (ICS-DTC) utilized cancel the quantization noise (Q-noise) and true-fractional delay. By tuning DTC compensation, spur Q-noise are suppressed by...
The inhibition of residual tumor recurrence while repairing bone defects poses a challenging issue for postoperative osteosarcoma treatment. Here, we develop self-assembling peptide hydrogel (GelA) the targeted delivery cisplatin (CDDP), aiming to integrate with defect repair. GelA exhibits exceptional biocompatibility, high loading capacity CDDP, and superior adhesion. After in situ injection defects, CDDP-loaded GelA-CDDP demonstrates strong affinity hydroxyapatite, thereby facilitating...
With the development of network information era, people are more and demanding on handling data enhancing performance. Mobile Edge Computing (MEC) can solve problem computing delay congestion effectively. Computation offloading is main way for majority users who take advantage MEC. This paper introduces process computation MEC server framework in first place. Secondly, recommending algorithm model evaluation index. The key points to analyze, classify, summarize compare existing according...
—In this paper, a class-F23 VCO using nonlinear-capacitance transforming technique to simultaneously achieve low phase noise and wide tuning range is proposed. The degradation due the nonlinearity of switched capacitor in oscillator analyzed quantitatively derived. contributed by nonlinear capacitance can be suppressed proposed transformation technique. In order over bandwidth, asymmetric-toggling method utilized optimal ratios across entire frequency range. Implemented 40-nm CMOS process,...
In this work, ultrathin indium tin oxide (ITO) radio frequency (RF) transistors have been demonstrated for the first time, where inverted gate structure are used with a flexible polyimide substrate using magnetron sputtering at thermal budget below 200 °C. The 160 nm channel length device exhibits excellent DC characteristics, including mobility of 26 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> /V·s and an I <sub...
In this article, a mode-switching oscillator using multi-magnetic-coupling and active-source-degenerating techniques is proposed to achieve wide frequency tuning low phase noise. The multi-magnetic coupled resonator can realize two switchable resonant frequencies perform active source degeneration. Two main coils are developed switch between the modes, thereby doubling range (TR) without degrading noise performance. effective power from device suppressed by an additional coupling primary...
The intricate interplay between water resources, land energy systems, and carbon emissions has emerged as a prominent discourse in academic research. Nonetheless, there remains dearth of comprehensive research dedicated to fostering environmentally friendly low-carbon development through systematic integration coordination efforts. This study aimed fill this gap by integrating the coupling mechanism Water-Land-Energy-Carbon (WLEC) system, thereby constructing an evaluation index framework...
A Digital-to-Time Converter based (DTC-based) fractional-N digital phase-locked loop (DPLL) using probability-density-shaping (PDS) spur immunity and quantization phase (Q-noise) reduction techniques is presented. PDS-DSM used to generate a control code for DTC. diff type dither proposed further suppress the fractional spur. The nonlinearity will not cause spurs if certain conditions are obeyed. Moreover, reduce noise, configurable Phase Interpolator (PI) with 0.125/0.25/0.5/1.0 division...
This paper presents an accurate ISF-based phase noise analysis method for LC/Ring oscillators. The proposed can simultaneously quantify the effect of flicker and thermal on noise. impulse sensitivity function (ISF) tool is used to evaluate sources. An equivalent resistor utilized assess contribution simplify process. Based method, performance a voltage-controlled oscillator (VCO) with source damping resistors discussed. Simulated in 180-nm TSMC 110-nm HHGRACE CMOS processes, accuracy...
This paper presents a fractional-N all-digital phaselocked loop (ADPLL). A 4-bit multi-delay line time-to-digital converter (MDL-TDC) using path selection technique is proposed to achieve 4-ps resolution with 0.24-mW power consumption at 52 MS/s. TDC offset calibration method used eliminate metastability. An isolated constant-slope digital-to-time (ICS-DTC) utilized cancel the quantization noise (Q-noise) and true-fractional delay. By tuning DTC compensation, spur Q-noise are suppressed by...
High voltage circuit breaker (HVCB) is the most important control and protection equipment in power system. The mechanism of HVCB relatively complex, probability failure large. If occurs, safe stable operation entire system will not be guaranteed, which cause huge economic losses. Due to complexity traditional monitoring diagnosis methods, information obtained comprehensive enough, leads insufficient precision affects results. In order determine fault characteristics categories simply...
A fractional spurs reduction technique using probability density shaping (PDS) sigma-delta modulator (SDM) and frequency divider is presented. The PDS-SDM utilized to reshape the quantization noise density. If a certain condition obeyed, loop nonlinearity would not induce spurs. Moreover, in order reduce total power, divider, e.g., phase-interpolated (PI) adopted division ratio from 1 0.25, leading 12 dB suppression. By combining are greatly mitigated. phase domain ADPLL Simulink model...
Online reputation system plays an important role in building consumer trust to online life merchants and the rating is one of most factors be successful for them. The new dimension explored by applying content analysis on basis large number customer comments collected from website (www.koubei.com). And then linear regression with quadratic are conducted find out effect marginal use analysis. This research provides a perspective explore system. From practical perspective; it also decision...
Two RF CMOS voltage-controlled oscillators (VCOs) with source damping resistors to suppress 1/ <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${f}$ </tex-math></inline-formula> noise up-conversion are presented in this letter. important parameters: the phase deviation from first harmonic term of ideal impulse sensitivity function (ISF), and initial channel current, dominate up-conversion. Based on outcome,...