A5014411780- Traffic Prediction and Management Techniques
- Chemical and Physical Properties in Aqueous Solutions
- Traffic control and management
- Crystallization and Solubility Studies
- Transportation Planning and Optimization
- Analytical Chemistry and Chromatography
- Advanced Power Amplifier Design
- Radio Frequency Integrated Circuit Design
- Iterative Learning Control Systems
- GaN-based semiconductor devices and materials
- Impact of Light on Environment and Health
- Vehicular Ad Hoc Networks (VANETs)
- Robotic Mechanisms and Dynamics
- Advanced DC-DC Converters
- Differential Equations and Boundary Problems
- Gas Sensing Nanomaterials and Sensors
- Noise Effects and Management
- Semiconductor Quantum Structures and Devices
- Hydraulic and Pneumatic Systems
- Mathematical Inequalities and Applications
- Plant Disease Resistance and Genetics
- Control Systems in Engineering
- Gear and Bearing Dynamics Analysis
- Organic Light-Emitting Diodes Research
- Luminescence Properties of Advanced Materials
Sun Yat-sen University
2015-2025
Peng Cheng Laboratory
2019-2025
Nanjing Normal University
2019-2025
Children's Hospital of Fudan University
2025
Sir Run Run Shaw Hospital
2022-2024
Zhejiang University
2008-2024
Changzhou University
2024
Guangzhou Automobile Group (China)
2019-2023
Huazhong Agricultural University
2017-2022
Fudan University
2018-2021
Abstract White light‐emitting diode (LED) luminous efficacy must improve significantly if LEDs are to become useful for general lighting. Phosphors commonly used in white backscatter more than half of the down‐converted light, which a significant portion is eventually lost within package, thus reducing overall efficacy. This letter describes an experi‐mental study that shows by placing phosphor away from die, backscattered photons can be extracted and ef‐ficacy increased. At low currents,...
To understand how multiple phosphors in a mixture or stacked layers affect the performance of remote-phosphor “scattered photon extraction (SPE)” white light-emitting diode (LED), laboratory study was conducted with commercial yellow [quantum efficiency (QE)=0.91] and red (QE=0.59) equal amounts. The highest light output obtained when longer-wavelength phosphor placed as second layer. Experiments showed that using two an SPE package, several factors influence performance: layers; specific...
This paper presents a dual-band high-power digital polar Doherty power amplifier (PA). A current-mode parallel-combining transformer (PCT) combiner is introduced for operation, which realizes simultaneous coverage, high output power, and backoff efficiency enhancement with an ultra-compact single-transformer footprint. The PA implemented in 55-nm CMOS occupies 1.11 mm2 die area. It achieves 28.9-dBm peak Pout 36.8% PAE low band (LB) 27.0-dBm 25.4% (HB). For 12-subcarrier 180-kHz bandwidth...
Renewable electricity‐powered electrocatalysis technologies occupy a central position in clean energy conversion and the pursuit of net‐zero carbon emission future. Water can serve multiple roles electrocatalytic reactions, for instance, as reaction medium, reactant, modifier, promoter, etc. This significantly influences mass transport, active site, intermediate adsorption kinetics, ultimately determining catalytic performance (e.g., activity, selectivity, stability) well device efficiency....
Neurodevelopmental disorders (NDDs) pose significant challenges due to their impact on cognitive, social and motor abilities, often rooted in genetic factors such as copy number variations (CNVs) single nucleotide variantions (SNVs). Molecular testing, advanced sequencing technologies, is instrumental diagnosing NDDs, with twins offering unique perspectives detecting novel de novo CNVs SNVs. The study enrolled 32 pairs of that underwent molecular testing comprehensive clinical data...
This study set out to understand the benefits of improved illuminance uniformity in parking lots terms user perception and acceptability, as well energy use, demonstrate that light-emitting diodes (LEDs) can achieve uniform distributions more efficiently than traditional light sources. The results from a field evaluation showed are favourably perceived by people goodness illumination, ability see around at distance, safety – all this much lower average horizontal illuminance. Thus, improving...
Transit Signal Priority (TSP) strategy gives public transit vehicles privileges to pass through the intersection without stopping. Most previous studies have adopted compulsory TSP that considers maximize utility of transportation, which is likely reduce efficiency social vehicles. In this paper, we propose an Adaptive (ATSP) model both buses and This has Single Request (SR-ATSP) module Multi-Request (MR-ATSP) module. First, network divided into grids based on Discrete Traffic State Encoding...
Narrowband Internet-of-Things (NB-IoT) is a newly developed 3GPP protocol optimized for low-power wide-area IoT applications and evolving toward the future fifth-generation (5G) mobile communication. It specifies at least 23dBm maximum output power long-range communication, stringent emission mask compatible with guard-band or in-band scenarios, it supports multiple operation bands from 699 to 915MHz (LB) 1710 1980MHz (HB). For cost reduction, longer battery life, fast time market,...
This article presents a 15-bit quadrature digital power amplifier (DPA) with in-phase and (IQ)-cell-sharing transformer-based Doherty operation, which compensates the 3-dB loss in traditional architecture enhances efficiency. Efficiency enhancement at 3-/6-dB backoffs (PBOs) is obtained on IQ complex plane to improve average A single-transformer-footprint parallel-combining transformer (PCT) combiner implemented for compact die size. Fabricated 55-nm CMOS technology, DPA powered by...
Network-wide traffic signal control (NTSG) is one of the most important factors that impact transportation network efficiency. Nevertheless, NTSG problem still faces some issues impeding its development: (1) traditional flow-based data has poor applicability to evaluation network-wide state, and identification delayed bottleneck intersections; (2) existing methods are difficult capture global optimal solution, owing lack collaboration among multiple controllers. In this paper, overcome...
Recently, many studies have used optical ray-tracing analysis to investigate novel concepts of phosphor-converted white LEDs. Even though is a convenient tool, the accuracy results depends very much on properties various components within package in analysis. Presently, light transmission, reflection, and absorption LED phosphors are not well quantified. Therefore, laboratory study was conducted quantify at different wavelengths medium that has YAG:Ce phosphor mixed into epoxy. When...
With the continuous expansion of transportation networks in urbanization process, monitoring network-wide traffic dynamics with link resolution has become a significant challenge. Moreover, applying traditional link-based data into states identification over large-scale requires expensive costs. Fortunately, nowadays, we can collect large amounts trip-based which makes it possible to tackle this problem. In paper, propose probabilistic framework infer travel time from automatic vehicle (AVI)...
Missing data is a common and critical problem in the stage of traffic collection processing. How to impute missing values spatio-temporal has been challenging topic for long time. Recently, variety methods have proposed values. Among them, tensor-based show higher competence multi-dimensional imputation. However, previous studies tensor factorization rarely considered joint imputation multiple correlative such as speed volume. In this paper, novel method called Multi-Task Neural Tensor...
This paper presents a transformer-combined dual-mode reconfigurable digital Class-D power amplifier (PA) that supports polar and quadrature transmitters (TXs). Transformer-based load modulation is employed to enhance the efficiency in both modes. The PA implemented 28-nm logic LP CMOS occupies only 0.56 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> active area. mode achieves 28.8-dBm peak with PAE of 30.8% at 22.4% 6-dB backoff....