A5100722833- Analog and Mixed-Signal Circuit Design
- Coastal and Marine Dynamics
- Fluid Dynamics Simulations and Interactions
- ECG Monitoring and Analysis
- Ocean Waves and Remote Sensing
- CCD and CMOS Imaging Sensors
- Neuroscience and Neural Engineering
- Non-Invasive Vital Sign Monitoring
- Earthquake and Tsunami Effects
- Advanced Battery Technologies Research
- Advanced Antenna and Metasurface Technologies
- Glaucoma and retinal disorders
- Retinal Diseases and Treatments
- Sensor Technology and Measurement Systems
- Auditing, Earnings Management, Governance
- Corporate Finance and Governance
- Tropical and Extratropical Cyclones Research
- Fluid Dynamics and Heat Transfer
- Advanced DC-DC Converters
- Conducting polymers and applications
- Advancements in Semiconductor Devices and Circuit Design
- Retinal Imaging and Analysis
- Perovskite Materials and Applications
- EEG and Brain-Computer Interfaces
- Energy Harvesting in Wireless Networks
Zhejiang University
2017-2025
Zhejiang Province Institute of Architectural Design and Research
2020-2025
Anhui University of Science and Technology
2023-2024
Shanxi University
2024
Fuji Electric (Japan)
2024
State Key Laboratory of Quantum Optics and Quantum Optics Devices
2024
Westlake University
2023
University of Electronic Science and Technology of China
2018-2023
Wuhan University of Technology
2012-2023
Shandong University
2023
This work is the first report on a hole-selective tin-based perovskite solar cell (PSC) using concept of self-assembled monolayer (SAM) to modify ITO surface fabricate uniform tin layer via two-step sequential deposition method. Herein, we developed preheating procedure diminish effectively amounts hydroxyl groups and oxygen vacancies produce SAM. The substrate preheated at 400 °C gave best device performance for an efficiency power conversion (PCE) reaching 6.5%, 80% initial PCE was...
An ultra-low quiescent current tri-mode DC-DC buck converter is presented in this paper, which able to handle a 100,000X load range. In pulse width modulation (PWM) and frequency (PFM) mode, adaptive on-time (AOT) V<sup>2</sup> control utilized achieve seamless mode transition constant switching PWM mode. A deep green (DGM) proposed for light load, where both the loss power of circuitry are minimized. By reducing comparator current, delay-based hysteresis window generated, loss. Meanwhile,...
Purpose To investigate retinal vascular changes in patients with diabetic retinopathy (DR) using the newly developed ultrawide rapid scanning swept-source optical coherence tomography angiography (SS-OCTA) device. Methods This cross-sectional, observational study enrolled 24 (47 eyes) DR, 45 (87 diabetes mellitus (DM) without and 36 control subjects (71 eyes). All underwent × 20 mm SS-OCTA examination. Vascular density (VD) thickness of central macula (CM; 1 diameter) temporal fan-shaped...
Photoplethysmography (PPG) has been widely used in consumer and medical devices for assessing heart rate blood oxygen pressure levels, together with electrocardiography (ECG). One of the major challenges is recording PPG fast changing ambient light motion artefacts that generating a baseline signal. Light to digital converters (LDCs) proposed recent years show excellent resolution power efficiency, however it may get saturated during events. Existing chopping removal hysteresis DC techniques...
Introduction The study aimed to determine the effect of scanning area used for high-speed ultra-widefield swept-source optical coherence tomography angiography (SS-OCTA) on detection rate diabetic retinopathy (DR) lesions. Methods This prospective, observational involved patients between October 2021 and April 2022. participants underwent a comprehensive ophthalmic examination SS-OCTA using 24 mm × 20 protocol. A central denoted as “12 12 mm-central” was extracted from image, remaining...
Multiple parameter environment monitoring via wireless Internet of Thing sensors is growing rapidly, thanks to low power techniques the node. More importantly, ever more complex and highly efficient energy harvesting systems enable long-term continuous in inaccessible environments without needing change battery. This paper reviews existing modalities, including photovoltaic, piezoelectric, pyroelectric, electromagnetic, vibration, together with circuit interfacing management circuits for...
In this study, solitary waves passing over a submerged breakwater are investigated both experimentally and numerically. A total of 9 experimental conditions carried out, including different incident wave heights water depths. Numerical simulations performed using high-order finite-difference model solving Navier-Stokes (N-S) equations. The predicted elevation, velocity pressure show good agreement with data, verifying the accuracy capacity numerical model. Furthermore, parametric studies...
To evaluate the screening potential of a deep learning algorithm-derived severity score by determining its ability to detect clinically significant severe retinopathy prematurity (ROP).Fundus photographs were collected, and standard panel diagnosis was generated for each examination combining three independent image-based gradings. All images analyzed using algorithm, quantitative assessment retinal vascular abnormality (DeepROP score) assigned on 1 100 scale. The area under receiver...
This paper presents a low-power chopper-stabilized capacitively-coupled frontend amplifier with auxiliary-path-based input impedance ( Z <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$_{\mathbf{in}}$</tex-math> </inline-formula> ) boosting. In order to achieve high , low noise and small chip area, techniques on both system level circuit are implemented. On the level, capacitors C...
Recent large language models (LLMs) advancements sparked a growing research interest in tool assisted LLMs solving real-world challenges, which calls for comprehensive evaluation of tool-use capabilities. While previous works focused on either evaluating over stateless web services (RESTful API), based single turn user prompt, or an off-policy dialog trajectory, ToolSandbox includes stateful execution, implicit state dependencies between tools, built-in simulator supporting on-policy...
In this paper, a numerical method is employed to assess tidal current energy resources in the Pearl River Estuary, China. The model for simulation estuary developed based on MIKE 21 model, which enables simulations estuaries, coastal areas, and oceans. has grid resolution that varies from about 2500 m at open boundary 500–1000 inside estuary. Extensive validation performed by comparing predictions with field observations of level velocity various stations Estuary. characteristics are...
Photoplethysmography (PPG) monitoring can provide vital signs like heart rate (HR), variability (HRV), and blood oxygen saturation $\left(\mathrm{SpO}_{2}\right)$ non-invasively. Moreover, with other modalities, the PPG channel is becoming prevalent in wearable devices for fitness, glucose, pressure, etc., applications [1]. The usually puts a stringent requirement on readout design to cope extremely low AC/DC (perfusion index < 0.1 %) [2]. On-chip pinned-photodiodes (PPDs) have been used...
This paper proposed an event-driven clockless level-crossing ADC (LC-ADC) suitable for time-sparse signal acquisition. A SAR-assisted loop is exploited to resolve the delay induced distortion in conventional LC-ADCs, which greatly improves accuracy and power efficiency. The sampling scheme automatically adapts rate input activities, showing a dynamic consumption. Fabricated 55nm CMOS technology, hybrid LC-ADC achieves 62. 2dB SNDR Walden FoM of 29. 7fJ/conv.-step, nearly 5X improvement...
This article presents a low-power, high-resolution, high dynamic range (DR) current-mode direct-to-digital converter (CM-DDC) using noise-shaping triple-slope quantizer. Both thermal and quantization noises can be first-order shaped out of band, increasing the resolution effectively. High realized without sampling rate or high-order shaping architecture. A coarse-fine zoom style is exploited, which reduces conversion time and, thus, power consumption active circuit blocks with biasing. On...