A5038481252- Radio Frequency Integrated Circuit Design
- Photonic and Optical Devices
- Advanced Power Amplifier Design
- Advancements in Semiconductor Devices and Circuit Design
- Fire effects on ecosystems
- Remote Sensing in Agriculture
- Migration and Labor Dynamics
- Data-Driven Disease Surveillance
- Spatial and Panel Data Analysis
- Human Mobility and Location-Based Analysis
- Transportation Planning and Optimization
- Child Development and Digital Technology
- Urban Transport and Accessibility
- ICT Impact and Policies
- Advancements in PLL and VCO Technologies
- Impact of Technology on Adolescents
- Wireless Power Transfer Systems
- Superconducting and THz Device Technology
- Body Composition Measurement Techniques
- Plasmonic and Surface Plasmon Research
- Urban Green Space and Health
- Species Distribution and Climate Change
- Traffic Prediction and Management Techniques
- Infrared Thermography in Medicine
- Noise Effects and Management
University of Electronic Science and Technology of China
2021-2024
Harbin Institute of Technology
2020-2023
Ministry of Industry and Information Technology
2020-2023
Huzhou Vocational and Technical College
2023
University of Hong Kong
2018
American University
2010
Investigation of global clustering patterns across regions is very important in spatial data analysis. Moran's I a widely used statistic for detecting such as an east-west trend or unusually large cluster. Here, we intend to improve evaluating by including the weight function variance, introducing population density (PD) statistics, and conducting Monte Carlo simulation testing. We compare our modified with Oden's I* pop simulated homogeneous populations. The proposed method applied census...
With the rapid development of modern communication technology, standards impose stringent performance requirements, such as ultra-low jitter requirement, on phase-locked-loop (PLL) frequency synthesizers. As one widest-employed PLL structures, a charge-pump (CPPLL) with phase-frequency detector (PFD) is known for its excellent robust lock-acquisition due to capability detect phase and error simultaneously. Recent research exhibited great potential CPPLLs achieve sub-100fs <inf...
Forecasting tourism volume can provide helpful information support for decision-making in managing tourist attractions. However, existing studies have focused on the long-term and large-scale prediction scarcely considered high-frequency micro-scale ones. In addition, current approaches are limited regarding forecasting visitor of a designated sub-area attraction. This forecast assist local-scaled decisions attractions, particularly Therefore, to achieve forecasts finer scale areas such as...
As regulated by the &#x2018;fire environment triangle', three major forces are essential for understanding wildfire danger: (1) topography, (2) weather and (3) fuel. Within this concept, study aimed to assess danger China based on a set of fuel variables. Among these variables, two remotely sensed key moisture content (FMC) foliage load (FFL), were integrated into assessment. These variables retrieved using radiative transfer models from MODIS reflectance products. The random forest...
Access to urban green space (UGS) is associated with the enhancement of health and disparities in access generate issues spatial equity socioenvironmental justice. The aim this study measure accessibility investigate UGSs areas Harbin, China. A Gaussian-based two-step floating catchment area method autocorrelation analysis were used evaluate its distribution patterns residential tracts. Bivariate correlation was employed examine statistical relations between demographic characteristics...
Abstract Beam steering plays a vital role in light detection and ranging (LiDAR). However, the scanning speed is below megahertz (MHz) current LiDAR systems. Frequency‐gradient metasurface has been reported to achieve gigahertz (GHz) beam with 25° angle two dimensions. fabrication of millions form‐varying nanoscale meta‐atoms poses challenges operation efficiency, massive production, overall cost‐effectiveness when size goes beyond millimeter scale. Here, dynamic comprising periodic grating...
This study aims to examine the quality of life Chinese migrant children and explore whether social capital mediates relationship between a child's migration status life. A cross-sectional survey was conducted in district Shanghai, China. Based on sample consists 1,577 fourth sixth grade, we used multivariable linear regression associations mechanisms among migration, Migrant reported lower scores for than their urban counterparts. However, identified higher levels neighbourhood cohesion,...
Wildfire is a typical complex nonlinear process, which has various interactions with weather, fuel, topography, and human variables. Previous studies on wildfire danger modeling mainly focused the current climate or future scenarios of these However, outbreaks are not only related to factors at moment but also change trend before outbreak time point. The short-term features weather fuel dynamics <tex xmlns:mml="http://www.w3.org/1998/Math/MathML"...
This study aims to examine the quality of life Chinese migrant children and explore whether social capital mediates relationship between a child’s migration status life. A cross-sectional survey was conducted in district Shanghai, China. Based on sample consists 1,577 fourth sixth grade, we used multivariable linear regression associations mechanisms among migration, Migrant reported lower scores for than their urban counterparts. However, identified higher levels neighbourhood cohesion,...
Abstract As a critical transition period from adolescence to youth, college students’ health behaviors, and physical forms are gradually maturing, nowadays, obsession with smartphones largely causes great harm their body function metabolism. This paper mainly evaluates analyzes the metabolic risk of students in education institutions themselves by linear regression model least squares method, studies correlation between fat percentage fitness functional students, mediating effect risk,...
This paper provides an overview of design considerations for silicon-based terahertz low noise amplifier. The collaborative gain and optimization approach has been discussed a novel gain-noise plane presented. Several examples are introduced to exhibit the superiority method.
In this paper, an adaptive stacked Radio-Frequency (RF) Power Amplifier (PA) is proposed for radiation-hardened applications. The PA consists of a structure where four transistors are connected in series and bias circuit monitoring irradiation levels to adjust achieve minimum saturated output power (Psat) degradation. simulation results show that the without radiation-hardness achieves small-signal gain 18.5dB, Psat 24.9dBm with peak power-added efficiency (PAE) 39.6% at 10GHz. While 300...
This paper presents a novel Cds compensation technique using capacitor to achieve phase invariaton. Based on this technique, wideband variable gain amplifier (VGA) with single-stage topology has been implemented in 65 nm CMOS process. In the design of proposed VGA, double-control mode is employed ensure transconductance consistence common-source and common-gate stage for cascode structure. Finally, The results show that differential VGA achieves <3° variation over 10 dB tuning range,...