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452 results on '"Yang, Haiwei"'

1. HSIDMamba: Exploring Bidirectional State-Space Models for Hyperspectral Denoising

Author

Liu, Yang, Xiao, Jiahua, Guo, Yu, Jiang, Peilin, Yang, Haiwei, and Wang, Fei

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Effectively discerning spatial-spectral dependencies in HSI denoising is crucial, but prevailing methods using convolution or transformers still face computational efficiency limitations. Recently, the emerging Selective State Space Model(Mamba) has risen with its nearly linear computational complexity in processing natural language sequences, which inspired us to explore its potential in handling long spectral sequences. In this paper, we propose HSIDMamba(HSDM), tailored to exploit the linear complexity for effectively capturing spatial-spectral dependencies in HSI denoising. In particular, HSDM comprises multiple Hyperspectral Continuous Scan Blocks, incorporating BCSM(Bidirectional Continuous Scanning Mechanism), scale residual, and spectral attention mechanisms to enhance the capture of long-range and local spatial-spectral information. BCSM strengthens spatial-spectral interactions by linking forward and backward scans and enhancing information from eight directions through SSM, significantly enhancing the perceptual capability of HSDM and improving denoising performance more effectively. Extensive evaluations against HSI denoising benchmarks validate the superior performance of HSDM, achieving state-of-the-art results in performance and surpassing the efficiency of the latest transformer architectures by $30\%$.

Published
2024

2. Research on Emotional Conditioning Based on Chinese National Pentatonic Modes

Author

Zhu, Yunli, Zhao, Chengji, Zhang, Yutong, Jian, Meiru, Yang, Haiwei, Ji, Jiaming, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Zhu, Shoutong, editor, Baldini, Andrea L., editor, Hong, Yongming, editor, Xu, Zhihua, editor, and Syed Mohammed, Sharifah Faizah, editor

Published
2024
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34. A light pollution risk model based on improved assessment and prediction methods

Author

He Ziyan, Guo Ruikun, and Yang Haiwei

Subjects
light pollution, lpri, improved emw-ahp, topsis, grey linear regression combination prediction model, Environmental sciences, GE1-350
Abstract

As light pollution becomes increasingly severe, its impact is becoming more widespread for instance affecting human health, social stability, and the ecological environment to varying degrees. In order to measure the risk level of light pollution and develop related measures, we propose the Light Pollution Risk Index (LPRI) and create various assessment, intervention and prediction models around it. It include three models: The LPRI Scoring System, The Light Pollution Risk Classification Model and the HSE Intervention Strategy & Potential Impact Prediction Model. Firstly, we use the improved EMW-AMP to determine the weights and elicicit the concepts for next models. We select 6 representative areas in different kinds of locations, combine the integrated weights with the Topsis method to score and rank. Followed by invoking K-Means cluster analysis, we reselect 108 areas and the consequence classifies the light pollution risk level into three levels: level A significant risk, indicator range from 0 to 4.23, level B average risk, indicator range from 4.23 to 7.64, and level C low risk, indicator range from 7.64 to 10. Then, followed by prediction of LPRI with a Grey linear regression combination prediction model. The predicted results can accurately and clearly reflect that the application of HEIS in Wuhan and HSIS in Los Angeles, which is the most effective. At the same time, we find that intervening in one or two of H, S, and E must have a non-positive effect on the risk indicator of the other side. Finally, we briefly discuss how the intervention strategies in Wuhan and Los Angeles affect the individual indicators and thus the level of risk.

Published
2023
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35. Intelligent Robot Arm: Vision-Based Dynamic Measurement System for Industrial Applications

Author

Chen, Lei, Yang, Haiwei, Liu, Pei, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Yu, Haibin, editor, Liu, Jinguo, editor, Liu, Lianqing, editor, Ju, Zhaojie, editor, Liu, Yuwang, editor, and Zhou, Dalin, editor

Published
2019
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39. Flexible Pt2Pd alloy nanosheet electrocatalysts for efficient oxygen reduction reaction and zinc–air batteries.

Author

Wang, Qun, Shao, Siqing, Ma, Mengjie, Zhu, Wenxiang, Yang, Haiwei, Chen, Jinxin, Su, Jiaqi, Liao, Fan, Shao, Qi, and Shao, Mingwang

Subjects
OXYGEN reduction, ELECTROCATALYSTS, STANDARD hydrogen electrode, ALLOYS, POWER density
Abstract

The utilization of two-dimensional (2D) nanosheets as catalysts is promising due to their atomic-scale thickness and extensive surfaces. The development of a high-quality, flexible Pt-based nanosheet with an efficient synthesis method is imperative. In this study, we present a 2D Pt2Pd porous alloy nanosheet synthesized through a novel process involving molten-alkali mechanochemical and borane morpholine complex reduction methods. This nanosheet exhibits a pristine 2D active surface, serving as an efficient catalyst for the oxygen reduction reaction (ORR). The Pt2Pd porous alloy nanosheet catalyst displays a high half-wave potential of 0.956 V versus the reversible hydrogen electrode (RHE), along with remarkable mass and specific activities of 1.38 A mg−1Pt and 3.70 mA cm−2 (at 0.9 V versus the RHE). When applied as the cathode in a zinc–air battery, it achieves a power density of 0.31 W cm−2 and demonstrates outstanding durability. This research introduces an innovative strategy for advancing high-quality, flexible 2D Pt-based materials. [ABSTRACT FROM AUTHOR]

Published
2024
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40. Numerical Investigation on the Mechanism of Solid Rocket Motor Instability Induced by Differences between On-Ground and In-Flight Conditions.

Author

Wang, Ge, Li, Chengke, Pu, Weiqiang, Zhou, Bocheng, Yang, Haiwei, and Yang, Zenan

Subjects
ROCKET engines, AERODYNAMIC heating, STRUCTURAL dynamics, FLUID-structure interaction, RESONANCE, PROPELLANTS
Abstract

A solid rocket motor (SRM) with a high aspect ratio that performs normally during ground tests may experience instability during flight. To address this issue, this study employs the pulse triggering method and the numerical approach of two-way fluid–structure interaction to investigate the mechanisms behind the SRM instability resulting from distinctions between on-ground and in-flight conditions. The results indicate that the main distinctions between the on-ground and in-flight conditions for SRMs are the strong constraints during the ground test, as well as aerodynamic forces and aerodynamic heating during flight. The strong constraints in the ground test effectively suppress structural vibrations by limiting displacements. In flight conditions, the aerodynamic heating reduces the strength of the SRM casing and aerodynamic forces provide sustained energy input for structural vibrations during flight. The mechanism for the ground/flight differences that induce SRM instability is that the structural natural frequencies are reduced by aerodynamic heating and the first-order acoustic frequency increased by the propellant regression approach reaches the resonance condition. Therefore, an instability factor Φ is proposed to represent the resonance relationship between the structural natural modes and the acoustic mode of SRMs. Furthermore, the closer the frequency of the aerodynamic forces is to the resonance frequency of the acoustic-structure coupling, the more pronounced the SRM instability. [ABSTRACT FROM AUTHOR]

Published
2024
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46. An Accurate Measurement System for Non-cooperative Spherical Target Based on Calibrated Lasers

Author

Dong, Hang, Wang, Fei, Yang, Haiwei, Li, Zhongheng, Chen, Yanan, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Chen, Enqing, editor, Gong, Yihong, editor, and Tie, Yun, editor

Published
2016
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47. An Efficient Solution for Extrinsic Calibration of a Vision System with Simple Laser

Author

Chen, Ya-Nan, Wang, Fei, Dong, Hang, Zhang, Xuetao, Yang, Haiwei, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Chen, Enqing, editor, Gong, Yihong, editor, and Tie, Yun, editor

Published
2016
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