A5101598482- Optical Coatings and Gratings
- Metamaterials and Metasurfaces Applications
- Photonic and Optical Devices
- Antenna Design and Analysis
- Long-Term Effects of COVID-19
- Energy Harvesting in Wireless Networks
- Advanced optical system design
- Photonic Crystals and Applications
- Advanced Sensor and Energy Harvesting Materials
- Advanced Antenna and Metasurface Technologies
- Information Technology Governance and Strategy
- Wikis in Education and Collaboration
- Poisoning and overdose treatments
- Social Media in Health Education
- Industrial Vision Systems and Defect Detection
- Machine Learning in Materials Science
- Microwave Engineering and Waveguides
- COVID-19 Clinical Research Studies
- Antenna Design and Optimization
- COVID-19 and healthcare impacts
- RFID technology advancements
- Opioid Use Disorder Treatment
- Forensic Toxicology and Drug Analysis
- Radar Systems and Signal Processing
- Microwave Imaging and Scattering Analysis
University of Massachusetts Lowell
2023-2024
Hunan University
2024
Washington University in St. Louis
2023
Saint Louis University
2023
Northeastern University
2021
Peking University
2011
Dalian Naval Academy
2010
Meta-optics are attracting intensive interest as alternatives to traditional optical systems comprising multiple lenses and diffractive elements. Among applications, single metalens imaging is highly attractive due the potential for achieving significant size reduction simplified design. However, metalenses exhibit severe chromatic performance degradation arising from material dispersion nature of singlet optics, making them unsuitable full-color requiring achromatic performance. In this...
The inverse design of meta-optics has received much attention in recent years. In this paper, we propose a GPU-friendly framework based on improved eigendecomposition-free rigorous diffraction interface theory, which offers up to 16.2 × speedup over the traditional coupled-wave analysis. We further improve framework's flexibility by introducing hybrid parameterization combining neural-implicit and shape optimization. demonstrate effectiveness our through intricate tasks, including...
A multimode interference (MMI) polarization splitter with easy fabrication process was demonstrated in Silicon-On-Insulator substrate. The minimum device size, 8 µm×1034 µm designed by Quasistate imaging effect theory. Numerical simulations show that this optimized MMI has a good tolerance. tolerance of width and length is ±0.04 ± 10 for transverse electric (TE) mode ±0.14 ±35 magnetic (TM) mode. bandwidths are 20 nm 80 TE TM respectively. Experiment results exhibits -15 dB extinction ratio...
<sec> <title>BACKGROUND</title> Scholars were selected based on specific criteria, and their affiliations, research directions, contents standardized to construct the knowledge network. </sec> <title>OBJECTIVE</title> This study conducts a comprehensive analysis of networks in transfusion medicine, with aim identifying emerging trends key areas focus. <title>METHODS</title> The employs systematic approach analyze topological properties network, central nodes within field. A subnetwork is...
Conventional Fourier modal methods (FMMs) remain computationally intensive for simulating and inversely designing free-form meta-atoms. This work introduces a convolutional neural network (CNN)-based method generating normal vector (NV) fields to improve FMMs’ convergence. Our proposed models predict NV from shapes with high accuracy reduced computational demand. Theoretical analysis experimental validation using the rigorous diffraction interface theory (R-DIT) demonstrate equivalent...
Flexible hybrid electronics (FHE) is an emerging technology enabled through the integration of semiconductor devices and additive manufacturing technology. It unlocks tremendous market potential by realizing low-cost flexible circuits systems that can be conformally integrated into various applications. However, operating frequencies most reported FHE are relatively low. also worth noting have been limited to simple design concepts since complex will impose challenges in aspects such as...
Role-playing is a crucial capability of Large Language Models (LLMs), enabling wide range practical applications, including intelligent non-player characters, digital twins, and emotional companions. Evaluating this in LLMs challenging due to the complex dynamics involved role-playing, such as maintaining character fidelity throughout storyline navigating open-ended narratives without definitive ground truth. Current evaluation methods, which primarily focus on question-answering or...
Abstract Chromatic aberration has been the main showstopper for metalenses when it comes to imaging applications with broadband sources such as ambient light. In wide field‐of‐view metalenses, this challenge becomes far more severe due exacerbated lateral chromatic aberrations. paper, is demonstrated, first time, full‐color using a fisheye metalens coupled deep learning computational processing. This approach capable of restoring panoramic images enhanced signal‐to‐noise ratio while...
Purpose:The SARS-CoV-2 infection cases are increasing rapidly in neuro-intensive care units (neuro-ICUs) at the beginning of 2023 China.We aimed to characterize prevalence, risk factors, and prognosis critically ill patients treated neuro-ICUs.Materials Methods: In prospective, multicenter, observational registry study, with intracerebral hemorrhage (ICH), subarachnoid (SAH), traumatic brain injury (TBI) admitted eight Chinese neuro-ICUs between Feb 16, 2023, Apr 30, were enrolled for...
This paper presents novel approaches to collect balanced high degree of freedom meta-atom patterns for machine learning models and a new design neural network performance evaluation.
We present an automatic differentiable R-DIT for the fast inverse design of photonic structures. demonstrated that proposed method could achieve a 30% speedup per optimization on GPUs compared with RCWA.
High-performance millimeter-wave (mm-wave) multiple-in-multiple-out (MIMO) radars have been using efficient multiplexing with increasingly complicated radar waveforms, where conventional hardware architectures suffer from inevitably high design complexity and cost. This article presents a new software-defined mm-wave multistatic imaging system which provides great efficiency flexibility to generate process waveforms. A general block diagram its signal model are proposed use space-time-coded...
Abstract Flexible hybrid electronics (FHE) is an emerging technology enabled through the integration of advanced semiconductor devices and 3D printing technology. It unlocks tremendous market potential by realizing low-cost flexible circuits systems that can be conformally integrated into various applications. However, operating frequencies most reported FHE are relatively low. also worth to note have been limited simple design concept (since complex will impose challenges in aspects such as...
This study aims to investigate the impact of infection with novel coronavirus Omicron variant on outcomes patients severe spontaneous intracerebral hemorrhage. We conducted a multicenter prospective non-randomized cohort during peak SARS-CoV-2 (severe acute respiratory syndrome 2) strain epidemic. Clinical data were collected from nine centers in China between December 1, 2022, and February 28, 2023. Patients categorized into good poor groups based modified Rankin Scale scores at discharge....
Abuse of prescription drugs has become a major source injury mortality and morbidity in the United States [1,5]. During COVID-19 pandemic, rate due to drug overdose increased sharply [4]. One statistics from Centers for Disease Control Prevention (CDC) indicated that rates by 137% during 2000 2014.
Aims at the problems of modeling and analyzing difficultly for ship-board C <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sup> ISR systems, functions structures systems are analyzed, expression scheme using Petri nets is put forward, characteristics discussed, suitable approaches introduced, that means based on a sort effectively pointed, models constructed, common way approach constructing expounded. Lastly, takes example warship air...