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Journal of Environmental Sciences 2025年第2期148卷 198-209页

作者： Linchun Nie Shuangying Li Xiaozhong Gao shuai yuan Guangyu Dong Guojin Tang Denghao Song Lutong Bu Qingxiang Zhou College of Chemical Engineering and Environment China University of Petroleum-BeijingBeijing 102249China

Norfloxacin is widely used owing to its strong bactericidal effect on Gram-negative ***,the residual norfloxacin in the environment can be biomagnified via food chain andmay damage the human liver and delay the bone development *** work described a reliable and sensitive smartphone colorimetric sensing system based on cobaltdoped Fe_(3)O_(4) magnetic nanoparticles(Co-Fe_(3)O_(4) MNPs)for the visual detection of *** with Fe_(3)O_(4),Co-Fe_(3)O_(4) MNPs earned more remarkably peroxidase-like activity and TMB(colorless)was rapidly oxidized to oxTMB(blue)with the presence of H_(2)O_(2).Interestingly,the addition of low concentration of norfloxacin can accelerate the color reaction process of TMB,and blue deepening of the solution can be observed with the naked ***,after adding high concentration of norfloxacin,the activity of nanozymewas inhibited,resulting in the gradual fading of the *** on this principle,a colorimetric sensor integrated with smartphone RGB mode was *** visual sensor exhibited good linearity for norfloxacin monitoring in the range of 0.13-2.51μmol/L and 17.5-100μmol/*** limit of visual detectionwas 0.08μmol/*** the actualwater sample analysis,the spiked recoveries of norfloxacin were over the range of 95.7%-104.7%.These results demonstrated that the visual sensor was a convenient and fast method for the efficient and accurate detection of norfloxacin in water,which may have broad application prospect.

关键词： Nanozymes Cobalt-doped Fe3O4 magnetic nanoparticles Visual method Smartphone Norfloxacin

Joint Power and Frequency Resource Allocation Algorithm for Integrated Satellite and Terrestrial Networks

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China Communications 2025年第2期22卷 256-268页

作者： Xue Guanchang Yang Mingchuan yuan shuai Guo Qing Liu Xiaofeng School of Electronics and Information Engineering Harbin Institute of TechnologyHarbin 150001China Qian Xuesen Laboratory of Space Technology China Academy of Space TechnologyBeijing 100080China

In this paper,we propose a joint power and frequency allocation algorithm considering interference protection in the integrated satellite and terrestrial network(ISTN).We efficiently utilize spectrum resources by allowing user equipment(UE)of terrestrial networks to share frequencies with satellite *** order to protect the satellite terminal(ST),the base station(BS)needs to control the transmit power and frequency resources of the *** optimization problem involves maximizing the achievable throughput while satisfying the interference protection constraints of the ST and the quality of service(QoS)of the ***,this problem is highly nonconvex,and we decompose it into power allocation and frequency resource scheduling *** the power allocation subproblem,we propose a power allocation algorithm based on interference probability(PAIP)to address channel *** obtain the suboptimal power allocation solution through iterative *** the frequency resource scheduling subproblem,we develop a heuristic algorithm to handle the non-convexity of the *** simulation results show that the combination of power allocation and frequency resource scheduling algorithms can improve spectrum utilization.

关键词： integrated satellite and terrestrial network power allocation resource scheduling spectrum sharing

磷酸铁锂离子电池热失控产物爆炸下限预测方法

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爆炸与冲击 2025年第2期45卷 126-136页

作者：袁帅台枫钱新明程东浩中国民航科学技术研究院北京101399 北京理工大学爆炸科学与安全防护全国重点实验室北京100081 北京市民航安全分析及预防工程技术研究中心北京100028

为准确预测磷酸铁锂电池热失控产物的爆炸下限,在密闭压力容器内开展了磷酸铁锂电池热失控实验,结合热失控特性和气相色谱-质谱联用技术,计算了热失控产物气体组分,基于能量守恒方程和绝热火焰温度,建立了磷酸铁锂电池热失控产物爆炸下... 详细信息

为准确预测磷酸铁锂电池热失控产物的爆炸下限,在密闭压力容器内开展了磷酸铁锂电池热失控实验,结合热失控特性和气相色谱-质谱联用技术,计算了热失控产物气体组分,基于能量守恒方程和绝热火焰温度,建立了磷酸铁锂电池热失控产物爆炸下限的预测模型,并验证了绝热火焰温度法、Le Chatelier法和Jones法的准确性,考察了电解液蒸气对热失控产物爆炸下限的影响。结果表明,常温下采用Le Chatelier法计算得到的爆炸下限偏差最小,为1.14%;采用绝热火焰温度法计算结果偏差最大,为10.02%。在60%~100%荷电状态(state of charge, SOC)范围内,磷酸铁锂电池热失控气体的爆炸下限先升后降。当热失控产物考虑电解液蒸气时,60%SOC磷酸铁锂电池热失控产物爆炸下限仅为3.93%,较未考虑电解液蒸气热失控气体的爆炸下限降低了22.49%,这说明电解液蒸气提高了磷酸铁锂电池热失控产物的爆炸风险。

关键词：磷酸铁锂电池热失控产物爆炸下限 Le Chatelier定律绝热火焰温度

多模态传感器融合技术在智能建筑施工质量控制中的创新应用

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绿色建造与智能建筑 2025年第02期 147-149页

作者：袁帅水发招标(山东)有限公司

现如今智能建筑行业发展迅速，施工质量控制显得尤为重要。多模态传感器融合技术作为一种新兴技术，在提高建筑施工质量监控精确度和实时性方面展现出巨大潜力。本研究简要阐述了多模态传感器技术在智能建筑领域的应用潜在优势及其技术... 详细信息

现如今智能建筑行业发展迅速，施工质量控制显得尤为重要。多模态传感器融合技术作为一种新兴技术，在提高建筑施工质量监控精确度和实时性方面展现出巨大潜力。本研究简要阐述了多模态传感器技术在智能建筑领域的应用潜在优势及其技术原理分类，重点剖析了多模态传感器在施工现场环境监测、材料跟踪、结构健康监测等方面的创新应用；结合具体的应用案例，充分展示了多模态传感器融合技术在实际工程中的设计方案、效果评估并验证了其有效性，以期为该领域相关理论研究提供一定的参考。

关键词：多模态传感器融合智能建筑施工质量控制实时监控技术创新

“种草”对消费者线上购物决策的影响研究--基于食品饮料的网民购物意愿调查数据

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上海市经济管理干部学院学报 2025年第1期23卷 24-40页

作者：冯朝睿袁帅昆明理工大学昆明650031 新疆财经大学乌鲁木齐830012

在数字经济背景下,“种草”经济作为新兴的消费引导模式,对推动消费、促进市场活力起到了积极作用,是我国经济增长的一个重要助力因素。以众多学者研究成果为理论参考,文章通过问卷调查,使用结构方程模型探究“种草”对购物决策影响的... 详细信息

在数字经济背景下,“种草”经济作为新兴的消费引导模式,对推动消费、促进市场活力起到了积极作用,是我国经济增长的一个重要助力因素。以众多学者研究成果为理论参考,文章通过问卷调查,使用结构方程模型探究“种草”对购物决策影响的因素、路径、程度,采用随机森林模拟预测出消费者的线上购物决策并对其进行验证。结果表明,个人因素、社会因素以及两者的交互作用均对购物决策产生影响;线上消费环境直接影响作用最强,还能通过其余的社会因素对购物决策产生间接影响;消费者更关心商品的包邮、售后服务及网络达人对其进行评测。基于此提出了提高“种草”成功率,促进消费者、商家、第三方平台形成“种草”经济良性循环的建议。

关键词： “种草”经济线上购物决策结构方程模型随机森林模拟预测

Practical Model of Sea Ice Thickness of Bohai Sea Based on MODIS Data

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Chinese Geographical Science 2018年第5期28卷 863-872页

作者： yuan shuai LIU Chengyu LIU Xueqin Marine Environmental Monitoring Center State Oceanic Administration Key Laboratory of Spatial Active Opto-Electronic Techniques Shanghai Institute of Technical PhysicsChinese Academy of Sciences

Sea ice thickness is one of the most important input parameters in the studies on sea ice disaster prevention and mitigation. It is also the most important content in remote sensing monitoring of sea ice. In this study, a practical model of sea ice thickness(PMSIT) was proposed based on the Moderate Resolution Imaging Spectroradiometer(MODIS) data. In the proposed model, the MODIS data of the first band were used to estimate sea ice thickness and the difference between the second-band reflectance and the fifth-band reflectance in the MODIS data was calculated to obtain the difference attenuation index(DAI) of each pixel. The obtained DAI was used to estimate the integrated attenuation coefficient of the first band of the MODIS at the pixel level. Then the model was used to estimate sea ice thickness in the Bohai Sea with the MODIS data and then validated with the actual sea ice survey data. The validation results showed that the proposed model and corresponding parameterization scheme could largely avoid the estimation error of sea ice thickness caused by the spatial and temporal heterogeneity of sea ice extinction and allowed the error of 18.7% compared with the measured sea ice thickness.

关键词： sea ice thickness Moderate Resolution Imaging Spectroradiometer(MODIS) practical model Bohai Sea

基于超效率SBM-Malmquist模型的民族地区农村基础设施供给效率研究

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内蒙古民族大学学报(自然科学版) 2025年第1期40卷 90-96页

作者：王伟袁帅孔祥博内蒙古民族大学经济学院内蒙古通辽028043 大连海事大学航运经济与管理学院辽宁大连116026

选取超效率SBM模型和Malmquist指数法,从横向与纵向、静态与动态角度对民族地区(八省区)农村基础设施供给效率进行实证分析。研究发现:民族地区(八省区)农村基础设施整体供给有效,各区域存在明显差异和不平衡性;动态分析表明民族地区(... 详细信息

选取超效率SBM模型和Malmquist指数法,从横向与纵向、静态与动态角度对民族地区(八省区)农村基础设施供给效率进行实证分析。研究发现:民族地区(八省区)农村基础设施整体供给有效,各区域存在明显差异和不平衡性;动态分析表明民族地区(八省区)农村基础设施供给效率存在下降趋势,技术效率不高是供给效率下降的主要原因,各省区供给效率的变化情况不同。基于此,提出以县域为单位制定农村基础设施发展规划,科学确定农村基础设施投资的方向和结构,构建农村基础设施多元供给主体模式,实现农村基础设施的良好发展。

关键词：农村基础设施供给效率民族地区超效率SBM模型 Malmquist指数

Ghost Module Based Residual Mixture of Self-Attention and Convolution for Online Signature Verification

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Computers, Materials & Continua 2024年第4期79卷 695-712页

作者： Fangjun Luan Xuewen Mu shuai yuan Department of Computer Technology School of Computer Science and EngineeringShenyang Jianzhu UniversityShenyang110168China Liaoning Province Big Data Management and Analysis Laboratory of Urban Construction Shenyang Jianzhu UniversityShenyang110168China Shenyang Branch of National Special Computer Engineering Technology Research Center Shenyang Jianzhu UniversityShenyang110168China

Online Signature Verification (OSV), as a personal identification technology, is widely used in various ***, it faces challenges, such as incomplete feature extraction, low accuracy, and computational heaviness. Toaddress these issues, we propose a novel approach for online signature verification, using a one-dimensionalGhost-ACmix Residual Network (1D-ACGRNet), which is a Ghost-ACmix Residual Network that combines convolutionwith a self-attention mechanism and performs improvement by using Ghost method. The Ghost-ACmix Residualstructure is introduced to leverage both self-attention and convolution mechanisms for capturing global featureinformation and extracting local information, effectively complementing whole and local signature features andmitigating the problem of insufficient feature extraction. Then, the Ghost-based Convolution and Self-Attention(ACG) block is proposed to simplify the common parts between convolution and self-attention using the Ghostmodule and employ feature transformation to obtain intermediate features, thus reducing computational ***, feature selection is performed using the random forestmethod, and the data is dimensionally reducedusing Principal Component Analysis (PCA). Finally, tests are implemented on the MCYT-100 datasets and theSVC-2004 Task2 datasets, and the equal error rates (EERs) for small-sample training using five genuine andforged signatures are 3.07% and 4.17%, respectively. The EERs for training with ten genuine and forged signaturesare 0.91% and 2.12% on the respective datasets. The experimental results illustrate that the proposed approacheffectively enhances the accuracy of online signature verification.

关键词： Online signature verification feature selection ACG block ghost-ACmix residual structure

Effects of microstructure on uniaxial strength asymmetry of open-cell foams

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Applied Mathematics and Mechanics(English Edition) 2015年第1期36卷 37-46页

作者： Zi-xing LU Ji-xiang HUANG Ze-shuai yuan Institute of Solid Mechanics Beihang University

Based on the elongated Kelvin model, the effect of microstructure on the uniaxial strength asymmetry of open-cell foams is investigated. The results indicate that this asymmetry depends on the relative density, the solid material, the cell morphology, and the strut geometry of open-cell foams. Even though the solid material has the same tensile and compressive strength, the tensile and compressive strength of open-cell foams with asymmetrical sectional struts are still different. In addition, with the increasing degree of anisotropy, the uniaxial strength as well as the strength asymmetry increases in the rise direction but reduces in the transverse direction. Moreover, the plastic collapse ratio between two directions is verified to depend mainly on the cell morphology. The predicted results are compared with Gibson and Ashby＇s theoretical results as well as the experimental data reported in the literature, which validates that the elongated Kelvin model is accurate in explaining the strength asymmetry presented in realistic open-cell foams.

关键词： open-cell foam microstructure strength Kelvin model

On the Chern-Simons-Schrodinger Equation with Critical Exponential Growth

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Acta Mathematica Sinica,English Series 2021年第12期37卷 1875-1895页

作者： Si Tong CHEN Xian Hua TANG shuai yuan School of Mathematics and Statistics Central South UniversityChangsha 410083P.R.China

This paper is concerned with the following Chern-Simons-Schrodinger equation -Δu+V(|x|)u+(∫_(|x|)^(∞)h(s)/su^(2)(s)ds+h^(2)(|x|)/|x|^(2))u=a(|x|)f(u)in R^(2),where h(s)=∫_(0)^(s)l/2u^(2)(l)dl,V,a:R^(+)→R are radially symmetric potentials and the nonlinearity f:R→R is of subcritical or critical exponential growth in the sense of *** give some new sufficient conditions on f to obtain the existence of nontrivial solutions or ground state *** particular,some new estimates and techniques are used to overcome the difficulty arising from the critical growth of Trudinger-Moser type.

关键词： Chern-Simons-Schrodinger equation critical exponential growth Trudinger-Moser