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VOCs Emission Retrieval in Industrial Parks Based on the ADMS Model

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Huanjing Kexue/Environmental Science 2025年第3期46卷 1340-1349页

作者： Yan, Ou Wang, Ti-Jian Ruan, Zhao-yuan Ma, Gen-Hui Sheng, xiang-Yu Wang, Yu-Zheng School of the Environment Nanjing University Nanjing210023 China School of Atmosphere Science Nanjing University Nanjing210023 China Limited Company Beijing100012 China Cambridge Environmental Research Consultants Ltd. United Kingdom Jiangsu Boshi Environmental Industry Research Institute Limited Company Nanjing211111 China

To estimate the emission strength of volatile organic compounds(VOCs)from enterprises at an industrial park scale,this study established a VOC source estimation method based on small-scale air quality modeling(ADMS)and mobile monitoring data. First,hourly meteorological data was used to identify the enterprises along the vehicle path based on wind direction. The impact of enterprise emissions on the concentration at the mobile monitoring points was calculated using ADMS. Simulation results were compared with observed values to quantify the VOC source strengths of different enterprises. Further inversion experiments were conducted based on mobile monitoring data from Shenyang Economic Development Zone from July 28th to August 10th,resulting in the hourly emission strengths of the top ten enterprises. In this study,two time periods,from 10:00 to 11:00 on July 28th and from 10:00 to 11:00 on July 29th,exhibited higher emissions from enterprises,primarily from those related to furniture manufacturing. Additionally,emissions from VOCs exceeded 100 g·s-1 in three of the enterprises. Validation of the model tracing results was conducted based on observational data and the results indicated a good correlation between simulated and observed values. The source apportionment method established in this study provides a novel approach for quantifying emission strength of VOCs in industrial parks, offering a scientific basis for precise control of atmospheric pollution emissions in industrial park areas. © 2025 Science Press. All rights reserved.

关键词： Air quality

CT whole lung radiomic nomogram:a potential biomarker for lung function evaluation and identification of COPD

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Military Medical Research 2025年第1期12卷 36-47页

作者： Tao-Hu Zhou Xiu-Xiu Zhou Jiong Ni Yan-Qing Ma Fang-Yi Xu Bing Fan Yu Guan Xin-Ang Jiang Xiao-Qing Lin Jie Li Yi Xia xiang Wang Yun Wang Wen-Jun Huang Wen-Ting Tu Peng Dong Zhao-Bin Li Shi-yuan Liu Li Fan Department of Radiology the Second Affiliated Hospital of Naval Medical UniversityShanghai 200003China School of Medical Imaging Shandong Second Medical UniversityWeifang 261053ShandongChina Department of Radiology School of MedicineTongji HospitalTongji UniversityShanghai 200065China Department of Radiology Zhejiang Province People’s HospitalAffiliated People’s Hospital of Hangzhou Medical CollegeHangzhou 310014China Department of Radiology Sir Run Run Shaw HospitalZhejiang 310018China Jiangxi Provincial People’s Hospital the First Affiliated Hospital of Nanchang Medical CollegeNanchang 330006China College of Health Sciences and Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Radiology the Second People’s Hospital of DeyangDeyang 618000SichuanChina Department of Radiation Oncology Shanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghai 200233China

Background:Computed tomography(CT)plays a great role in characterizing and quantifying changes in lung structure and function of chronic obstructive pulmonary disease(COPD).This study aimed to explore the performance of CT-based whole lung radiomic in discriminating COPD patients and non-COPD ***:This retrospective study was performed on 2785 patients who underwent pulmonary function examination in 5 hospitals and were divided into non-COPD group and COPD *** radiomic features of the whole lung volume were *** absolute shrinkage and selection operator(LASSO)logistic regression was applied for feature selection and radiomic signature construction.A radiomic nomogram was established by combining the radiomic score and clinical *** operating characteristic(ROC)curve analysis and decision curve analysis(DCA)were used to evaluate the predictive performance of the radiomic nomogram in the training,internal validation,and independent external validation ***:Eighteen radiomic features were collected from the whole lung volume to construct a radiomic *** area under the curve(AUC)of the radiomic model in the training,internal,and independent external validation cohorts were 0.888[95%confidence interval(CI)0.869–0.906],0.874(95%CI 0.844–0.904),and 0.846(95%CI 0.822–0.870),*** were higher than the clinical model(AUC were 0.732,0.714,and 0.777,respectively,P<0.001).DCA demonstrated that the nomogram constructed by combining radiomic score,age,sex,height,and smoking status was superior to the clinical factor ***:The intuitive nomogram constructed by CT-based whole-lung radiomic has shown good performance and high accuracy in identifying COPD in this multicenter study.

关键词： Chronic obstructive pulmonary disease(COPD) Computed tomography(CT) Radiomic

基于光谱和色谱特征数据融合的化工园区地表水污染源识别技术

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环境科学 2025年第1期46卷 216-226页

作者：赵远殷新育刘小凤金梦兰亚琼刘锐常州大学环境科学与工程学院常州213164 浙江清华长三角研究院生态环境研究所浙江省水质科学与技术重点实验室嘉兴314006 中环清科(嘉兴)环境技术研究院有限公司嘉兴314006

化工园区内工业企业多,且各企业排水组分复杂,很多企业之间排水组成具有相似性.因此,当园区内地表水发生污染时,快速识别污染源的难度很大.为此,以嘉兴市某国家级化工园区为研究对象,收集该园区内7家重点企业10个批次的排水样本,并对其... 详细信息

化工园区内工业企业多,且各企业排水组分复杂,很多企业之间排水组成具有相似性.因此,当园区内地表水发生污染时,快速识别污染源的难度很大.为此,以嘉兴市某国家级化工园区为研究对象,收集该园区内7家重点企业10个批次的排水样本,并对其进行三维荧光光谱(EEMS)和气相色谱-质谱(GC-MS)分析.利用平行因子法从同一企业不同批次排水的EEMS图谱中提取共有组分,并构建EEMS特征数据矩阵.同时,从企业排水的GC-MS数据中筛选出具有高检出率或能够有效区分不同企业排水的特征物质,并构建GC-MS特征数据矩阵.比较研究基于不同数据矩阵以及不同模型的污染源识别效果.结果表明,无论是基于EEMS原始数据矩阵、EEMS特征数据矩阵还是GC-MS特征数据矩阵,BP神经网络模型对污染源的识别准确率都不高,分别仅为71.43%、76.19%和71.43%,略高于支持向量机模型(76.19%、76.19%和57.14%).当使用EEMS与GC-MS特征数据融合矩阵时,污染源识别性能显著提升.支持向量机模型对7家企业排水的识别准确率、宏精确率、宏召回率以及宏调和平均值分别为95.24%、96.43%、95.24%和95.10%,而BP神经网络模型的识别性能更佳,4项指标均接近100%.研究结果为化工园区等地表水污染源识别提供了一种有效方法 .

关键词：化工园区三维荧光光谱(EEMS) 气相色谱-质谱(GC-MS) BP神经网络(BPNN) 支持向量机(SVM) 污染源识别

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学科实践的感性活动基础与育人价值实现

内蒙古社会科学 2025年第1期46卷 175-182,F0003页

作者：郭元祥马晓华华中师范大学教育学院湖北武汉430079

感性关涉人对外部世界的反映以及人的活动和存在方式,它既指感性认识,也指人的主观感受能力,更指实践的感性活动。人的完整性在于其实践性,形成于实践的感性活动,实践体现了感性的核心要义。学科实践是感性学习活动与理性学习活动的深... 详细信息

感性关涉人对外部世界的反映以及人的活动和存在方式,它既指感性认识,也指人的主观感受能力,更指实践的感性活动。人的完整性在于其实践性,形成于实践的感性活动,实践体现了感性的核心要义。学科实践是感性学习活动与理性学习活动的深度融合,它在本质上是以学科为载体、面向感性的现实世界、运用学科知识解决真实问题的实践活动。学科实践具有深刻的感性活动基础:其一,学科实践是认识性实践与改造性实践的统一;其二,作为学科实践主体的学生是具有感性意识和感性需要的感性存在;其三,学科实践是学生以外部世界和自我为对象的感性活动。深化实践育人,要求回应学科实践的感性活动基础。由感性直观到感性实践,确立学科实践的感性表达;超越知识符号,促进学生面向现实世界的学习;发展思维,实现感性认识向理性认识的转化;设计多样化的学科或跨学科的感性活动,丰富学生的主体经验。

关键词：学科实践感性活动感性与理性教学改革

Towards Optimization and Assessment of the Chinese New-generation VLBI Network for Earth Orientation Parameters Monitoring

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Research in Astronomy and Astrophysics 2025年第2期 256-268页

作者： Hao xiang Zhong-Kai Zhang lan Du Ze-Jun Liu Xu-Qiao Wang College of Geospatial Information Information Engineering University Henan Industrial Technology Academy of Spatio-Temporal Big Data College of Geography and Environmental Science Henan University

The Earth Orientation Parameters(EOP) provide a time-varying transition relationship between the International Terrestrial Reference Frame and the International Celestial Reference Frame. To support deep space exploration and the Beidou Navigation Satellite System, the Chinese New-generation Very Long Baseline Interferometry Network(CNVN) is under construction for independent monitoring of the EOP. This paper evaluates the performance of existing 4-antenna CNVN through a batch generated observation schedules followed by extensive Monte Carlo simulations. The optimal positions of the fifth and sixth antennas of CNVN are found from 24hypothetical antenna positions uniformly distributed in China. In this process, the weighted parameters are optimized, which not only reduce the possibility of large error of EOP estimation accuracy due to unreasonable combination, but also greatly reduce the calculation cost.

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Effects of temperature on conversion of Li2CO3 to LiOH in Ca（OH）2 suspension

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Particuology 2017年第5期15卷 97-102页

作者： Bo yuan Jing Wang Wei Cai Yurong Yang Meigui Yi lan xiang College of Chemical Engineering Sichuan University Chengdu 610065 China Department of Chemical Engineering Tsinghua University Beijing 100084 China

The effects of temperature on the convecsion of Li2 CO3 Co LiOH in a Ca（OH）2 suspension were investigated. Li2CO3 microplates were used as the Li source. The results showed that Li2CO3 was converted to LiOH via in situ ion-exchange and dissolution-precipitation routes. The formation of mixed CaxLiz-2xCO3 inter- mediate species confirmed that at 25℃ need/e-like CaCO3 was formed heterogeneously on the Li2CO3 surface via in situ ion-exchange. At 60-100℃, isolated CaCO3 agglomerates were formed homogeneously via dissolution-precipitation. Temperature increases accelerated the dissolution and conversion of Li2 CO3 to LiOH, producing solutions with high [CO32-1][Ca^2＋] ratios; this favored homogeneous precipitation of isolated CaCO3 agglomerates,

关键词： Lithium carbonate (Li2CO3)CausticizationIn sitn ion-exchangeDissolution-precipitation

企业ESG信息披露同群效应与高质量发展——基于竞争和信息机制的视角

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技术经济与管理研究 2025年第1期 127-133页

作者：苑泽明刘甲于翔黄灿天津财经大学会计学院天津300221 南开大学商学院天津300071

基于企业自愿披露ESG信息的行为,选取沪深两市A股上市公司2011—2021年数据,基于同群效应的视角考察了企业ESG信息披露同群效应的基本特征。研究结果显示,企业在ESG信息披露方面普遍具有显著的行业同群效应和地区同群效应。企业ESG信息... 详细信息

基于企业自愿披露ESG信息的行为,选取沪深两市A股上市公司2011—2021年数据,基于同群效应的视角考察了企业ESG信息披露同群效应的基本特征。研究结果显示,企业在ESG信息披露方面普遍具有显著的行业同群效应和地区同群效应。企业ESG信息披露行业同群效应的形成机制主要基于市场竞争性模仿,行业竞争程度对该效应有显著的促进作用;企业ESG信息披露地区同群效应的形成机制主要基于信息获取性模仿,地区信息透明程度对该效应有显著的促进作用。此外,企业ESG信息披露同群效应存在地区异质性和生命周期异质性。最后,研究发现企业ESG信息披露行业同群效应能够显著促进企业高质量发展,地区同群效应则对企业高质量发展没有显著影响。

关键词： ESG信息披露同群效应高质量发展企业管理

基于时空冲突和非完整约束下的多AMR调度算法研究

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控制与决策 2025年第3期40卷 981-986页

作者：申子祥孙训红从永正余兰林合肥工业大学电气与自动化工程学院

针对多自主移动机器人(AMR)调度系统中的决策规划问题,提出一种分层策略的基于时空冲突和非完整约束下的多AMR调度算法.首先,提出加权时空混合A*算法作为算法的底层,进行单AMR路径规划,以确保规划的路径满足阿克曼类型AMR的运动学模型;... 详细信息

针对多自主移动机器人(AMR)调度系统中的决策规划问题,提出一种分层策略的基于时空冲突和非完整约束下的多AMR调度算法.首先,提出加权时空混合A*算法作为算法的底层,进行单AMR路径规划,以确保规划的路径满足阿克曼类型AMR的运动学模型;然后,引入结合分离轴定理的冲突检测树作为算法的上层,对底层算法规划出的路径进行精确地时空冲突检测,检测出的时空冲突被用作底层算法的时空约束;最后,再次调用底层算法,考虑时空约束进行路径规划,以实现高效的AMR冲突消解.仿真结果表明,所提出算法能够为多AMR调度系统高效地规划出满足非完整约束的无冲突路径.

关键词：多AMR系统非完整约束时空冲突检测加权时空混合A*算法冲突消解路径规划

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基于机器视觉的海鲜花螺分类研究

水生生物学报 2025年第2期49卷 138-145页

作者：陈林涛陈睿蓝莹梁国健牟向伟广西师范大学机械工程系桂林541004 柳州职业技术学院机电工程学院柳州545000

针对目前人工分选海鲜花螺劳动强度大、人工成本高的问题,研究提出一种DPO-SVM海鲜花螺公母分类模型。通过灰度共生矩阵分析提取海鲜花螺外壳间隔纹理特征量,采用SVM作为公母分类模型基体,对不同纹理特征量组合进行分类效果对比,得出使... 详细信息

针对目前人工分选海鲜花螺劳动强度大、人工成本高的问题,研究提出一种DPO-SVM海鲜花螺公母分类模型。通过灰度共生矩阵分析提取海鲜花螺外壳间隔纹理特征量,采用SVM作为公母分类模型基体,对不同纹理特征量组合进行分类效果对比,得出使用能量、熵、对比度3种特征量分类效果最好的结论。针对SVM优化问题,以PSO和WOA算法为基础提出DPO算法对SVM的重要参数c、g进行优化;对DPO-SVM性能进行测试,将测试结果与SVM、PSO-SVM、WOA-SVM测试结果对比。相比于其他3种SVM模型,DPOSVM分类准确率大幅度提升,相比于SVM,分类总准确率由85%上升至100%,上升了15%;DPO算法提高了单种群优化算法的寻优性能,相比于PSO算法,DPO算法将最佳适应度从95.26提升至98.68,提升幅度为3.47%。此外,达到最佳适应度的迭代次数由14次减少至6次,下降57.14%,显著优化了收敛速度。研究结果可为自动分拣装置中海鲜花螺公母分类提供技术参考。

关键词：机器视觉花螺分选外壳纹理特征支持向量机算法