- Mechanical Circulatory Support Devices
- Cardiac Structural Anomalies and Repair
- GaN-based semiconductor devices and materials
- Ga2O3 and related materials
- Cardiovascular Function and Risk Factors
- Semiconductor Quantum Structures and Devices
- Wireless Power Transfer Systems
- Ultrasound Imaging and Elastography
- Geriatric Care and Nursing Homes
- Transplantation: Methods and Outcomes
- Radiomics and Machine Learning in Medical Imaging
- Piezoelectric Actuators and Control
- Cardiac pacing and defibrillation studies
- Nanowire Synthesis and Applications
- Respiratory Support and Mechanisms
- Virus-based gene therapy research
- Diabetes and associated disorders
- RNA Interference and Gene Delivery
- Air Traffic Management and Optimization
- Remote Sensing in Agriculture
- Cardiac Imaging and Diagnostics
- Phonocardiography and Auscultation Techniques
- Hong Kong and Taiwan Politics
- Human-Automation Interaction and Safety
- Acute Kidney Injury Research
Shanghai Medical Information Center
2024
China Electronics Technology Group Corporation
2023
University of Michigan
1995-2022
Ann Arbor VA Medical Center
2005
The Auger recombination coefficient in In0.1Ga0.9N/GaN quantum wells, emitting at 407 nm has been determined from large signal modulation measurements on lasers which these wells form the gain region. A value of 1.5×10−30 cm6 s−1 is for room temperature, used to analyze reported efficiency characteristics 410 light diodes. calculated efficiencies agree remarkably well with measured ones. It apparent that largely responsible limiting device high injection currents.
Tissue-resident memory T cells (T RM cells) are a novel population of tissue-restricted antigen-specific cells. induced by pathogens and promote host defense against secondary infections. Although cannot be detected in circulation, they the major CD4 + CD8 T-cell tissues mice humans.
Integration of a 2D ultrasound transducer array with front-end signal conditioning electronics poses significant fabrication and packaging challenges due to the required number elements small element pitch. In this paper, we demonstrate CMUT-in-CMOS approach that produces ultrasonic transducers circuits on single chip using standard foundry CMOS process, augmented only two blanket post-process steps for sacrificial etching cavity sealing. arrays as large 16 times 16, integrated on-chip...
It has been reported that background variation in the frequency of spontaneous otoacoustic emission (SOAEs) may arise from cardiovascular system and side-bands spectra SOAEs he modulated by heartbeat. For better understanding mechanical influence cardiac cycle on cochlear functions under physiological pathophysiological conditions, this study investigated heartbeat-induced modulation guinea pig. Possible mechanisms these phenomena are also discussed. The external ear canal acoustic signal....
As ultrasound imagers become increasingly portable and lower cost, breakthroughs in transducer technology will be needed order to provide excellent imaging (ideally 3D/4D) while maintaining the affordability for systems. This paper presents a 32×32 array prototype, manufactured using CMUT-in-CMOS approach whereby elements circuit components are integrated on single chip straightforward cost-effective manufacturing approach. The contains 1,024 arranged hexagonal grid with half-wavelength...
Purpose National identity has a profound impact on building modern state, maintaining social stability and promoting economic development. Based three waves of data collected from the World Values Survey (WVS) in Hong Kong between 2005 2018, this study aims to examine changes national awareness Kongese over time. Design/methodology/approach The used paper originate WVS. WVS is cross-country time-series survey that been carried out seven 85 countries around world, since 1981. There are...
The continuous growth of civil airport throughput brings enormous pressure to safety management. existing passive management method cannot efficiently control risk in advance and lacks consideration operation efficiency, leading degradation on efficiency. To overcome these issues, we propose a reinforcement learning based runway decision which dynamically adjusts the take-off landing for upcoming flight, current pavement crack level status. Besides, evaluation metrics that can...
In this paper we have grown catalyst-free In(Ga)N nanowires and dot-in-nanowire heterostructures on (001) (111) silicon substrates by plasma-assisted MBE. The grow in the wurtzite structure with c-axis direction of growth. HRTEM data indicate that dot-in-nanowires are defect free. diameter can be varied from 50-100nm varying growth conditions. Photoluminescence spectra is measured at room temperature. Auger recombination coefficient these defect-free InGaN/GaN excitation dependent...