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Consumer products are important reservoirs and sources of organophosphate tri-esters and di-esters:Characteristics,mass inventory,and implication for waste management

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Journal of Environmental Sciences 2025年第5期151卷 550-559页

作者： Jie Zhou Chan liang Jinyun li Jiayi Gu Amina Salamova liangying liu Guangdong Key Laboratory of Environmental Pollution and Health School of EnvironmentJinan UniversityGuangzhou 511443China Gangarosa Department of Environmental Health Rollins School of Public HealthEmory UniversityGeorgia 30322USA

Numerous studies documented the occurrence of organophosphate tri-esters(tri-OPEs)and di-esters(di-OPEs)in the *** information is available on their occurrence in waste consumer products,reservoirs and sources of these *** study collected and analyzed 92 waste consumer products manufactured from diverse polymers,including polyurethane foam(PUF),polystyrene(PS),acrylonitrile butadiene styrene(ABS),polypropylene(PP),and polyethylene(PE)to obtain information on the occurrence and profiles of 16 tri-OPEs and 10 *** concentrations of di-OPEs(18−370,000 ng/g,median 1,700 ng/g)were one order of magnitude lower than those of tri-OPEs(94−4,500,000 ng/g,median 5,400 ng/g).The concentrations of both tri-and di-OPEs in products made of PUF,PS,and ABS were orders of magnitude higher than those made of PP and *** compositional patterns of OPEs varied among different polymer types but were generally dominated by bisphenol A bis(diphenyl phosphate),triphenyl phosphate,tris(1-chloro-2-propyl)phosphate,di-phenyl phosphate(DPHP),and bis(2-ethylhexyl)*** industrially applied di-OPEs(di-n-butyl phosphate and DPHP)exhibited higher levels than their respective tri-OPEs,contrary to their production *** non-industrially applied chlorinated di-OPEs were also detected,with concentrations up to 97,000 ng/*** findings suggest that degradation of tri-OPEs during the manufacturing and use of products is an important source of *** mass inventories of tri-OPEs and di-OPEs in consumer products were estimated at 3,100 and 750 tons/year,*** study highlights the importance of consumer products as emission sources of a broad suite of OPEs.

关键词： Organophosphate tri-esters Organophosphate di-esters Waste consumer products Source assessment Mass inventory

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一种基于近距法(CPX)改进的低噪声路面降噪效果预估方法

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中国环境科学 2021年第12期41卷 5943-5952页

作者：袁旻忞李明亮刘晓霏交通运输部公路科学研究所北京100088 国家环境保护道路交通噪声控制工程技术中心北京100088

针对低噪声路面降噪效果,基于近距法(CPX)获得轮胎/路面噪声,结合交通流特性、路面声学性能和使用状态,运用声能叠加原理和户外声空间传播机理,提出一种基于CPX改进的低噪声路面降噪效果评估模型,并以多种路面组合结构试验段为例,验证... 详细信息

针对低噪声路面降噪效果,基于近距法(CPX)获得轮胎/路面噪声,结合交通流特性、路面声学性能和使用状态,运用声能叠加原理和户外声空间传播机理,提出一种基于CPX改进的低噪声路面降噪效果评估模型,并以多种路面组合结构试验段为例,验证该改进评估方法的准确性.改进后的路面降噪效果评估方法,可以更为准确地预测低噪声路面对于路侧边界交通噪声和道路边界外35m环境噪声的降噪贡献量.在道路车道处于不同路面结构或者使用状态下,该评估方法可以为预测评估路面的噪声水平提供方法和依据.结果表明,改进后的评估方法对于道路边界交通噪声的预测误差分别从0.8,1.5和1.1dB下降到0.2,0.1和0.2dB;而对于道路边界外35m处的环境噪声,预测误差分别从1.1,1.8和1.1dB下降到0.1,0.2和0.2dB,有效提高了低噪声路面降噪效果预测评估的准确性.

关键词：低噪声路面降噪效果评估近距法轮胎/路面噪声

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Radical dehydroxymethylative fluorination of aliphatic primary alcohols and diverse functionalization ofα-fluoroimides via BF_(3)·OEt_(2)-catalyzed C-F bond activation

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Chinese Chemical Letters 2025年第1期36卷 239-243页

作者： Peng Wang Jianjun Wang Ni Song Xin Zhou ming li Molecular Synthesis Center Key Laboratory of Marine MedicineChinese Ministry of EducationSchool of Medicine and PharmacyOcean University of ChinaQingdao 266003China Laboratory for Marine Drugs and Bioproducts Pilot National Laboratory for Marine Science and TechnologyQingdao 266237China

Ag_(2)CO_(3)-promoted dehydroxymethylative fluorination of aliphatic alcohols has been achieved with Selectfluor as both oxidant and fluorine *** reaction involvesβ-fragmentation of primary alkoxy radicals,followed by the fluorination of the resulting C-centered radical *** transformation proceeds under mild reaction conditions and exhibits a broad substrate scope,thus opening up a new entrance to the synthesis of fluorinated constructs includingα-fluoroimides and 1-fluoroalkyl benzoates as well as secondary and tertiary alkyl fluorides like versatile 2-fluoro-2-alkyl 1,3-propandiol *** divergent functionalization of the obtainedα-fluoroimides enables an efficient access to amine derivatives through C-F bond activation under the action of BF_(3)·OEt_(2).

关键词： Dehydroxymethylative fluorination Alkoxy radicals β-Fragmentation Silver catalysis C-F Bond activation

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Development and application of an intelligent thermal state monitoring system for sintering machine tails based on CNN-LSTM hybrid neural networks

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Journal of Iron and Steel Research International 2025年第1期32卷 52-63页

作者： Da-lin Xiong Xin-yu Zhang Zheng-wei Yu Xue-feng Zhang Hong-ming Long liang-jun Chen Anhui Province Key Laboratory of Metallurgical Engineering&Resources Recycling Anhui University of TechnologyMa’anshan243002AnhuiChina School of Metallurgical Engineering Anhui University of TechnologyMa’anshan243032AnhuiChina School of Computer Science Anhui University of TechnologyMa’anshan243032AnhuiChina

Real-time prediction and precise control of sinter quality are pivotal for energy saving,cost reduction,quality improvement and efficiency enhancement in the ironmaking *** advance,the accuracy and comprehensiveness of sinter quality prediction,an intelligent flare monitoring system for sintering machine tails that combines hybrid neural networks integrating convolutional neural network with long short-term memory(CNN-LSTM)networks was *** system utilized a high-temperature thermal imager for image acquisition at the sintering machine tail and employed a zone-triggered method to accurately capture dynamic feature images under challenging conditions of high-temperature,high dust,and *** feature images were then segmented through a triple-iteration multi-thresholding approach based on the maximum between-class variance method to minimize detail loss during the segmentation *** the advantages of CNN and LSTM networks in capturing temporal and spatial information,a comprehensive model for sinter quality prediction was constructed,with inputs including the proportion of combustion layer,porosity rate,temperature distribution,and image features obtained from the convolutional neural network,and outputs comprising quality indicators such as underburning index,uniformity index,and FeO content of the *** accuracy is notably increased,achieving a 95.8%hit rate within an error margin of±*** the system is applied,the average qualified rate of FeO content increases from 87.24%to 89.99%,representing an improvement of 2.75%.The average monthly solid fuel consumption is reduced from 49.75 to 46.44 kg/t,leading to a 6.65%reduction and underscoring significant energy saving and cost reduction effects.

关键词： Sinter quality Convolutional neural network Long short-term memory Image segmentation FeO prediction

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均匀散射环境中物理层安全密钥容量分析

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通信学报 2016年第9期37卷 75-81页

作者：王旭金梁刘璐李明亮黄开枝国家数字交换系统工程技术研究中心河南郑州450002

物理层安全密钥容量受信道测量时差、终端移动和加性噪声等因素影响,在均匀散射环境中定量分析了上述因素对密钥容量的影响。在分析含噪窄带信道参数的时域统计特性的基础之上,推导了密钥容量时域闭式解,并且分别在均匀散射和非均匀散... 详细信息

物理层安全密钥容量受信道测量时差、终端移动和加性噪声等因素影响,在均匀散射环境中定量分析了上述因素对密钥容量的影响。在分析含噪窄带信道参数的时域统计特性的基础之上,推导了密钥容量时域闭式解,并且分别在均匀散射和非均匀散射环境中验证了推导结果的正确性和适用性。

关键词：物理层安全物理层安全密钥密钥容量均匀散射环境

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Experimental Study on Diesel Spray and Flame Asymmetry Characteristics of Dual-Orifice Nozzles for a Medium-Speed Engine

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Journal of Thermal Science 2025年第1期34卷 303-322页

作者： JU Dehao liURui ZHENG liang DENG Jiahui ZHANG Wenzheng HUO Jinlu HUANG li Shanghai Marine Diesel Engine Research Institute Shanghai 201108China National Key Laboratory of Marine Engine Science and Technology Shanghai 201108China Key Laboratory for Power Machinery and Engineering Ministry of EducationShanghai Jiao Tong UniversityShanghai 200240China

The asymmetry of the multi-orifice spray will cause uneven heat load of the marine diesel engine,thereby affecting its working performance and service ***,an in-depth understanding of the spray and flame characteristics of multi-orifice nozzles will guide the optimization of the nozzle structure,needle design and diesel atomization and combustion *** this reason,four groups of dual-orifice nozzles with different hole diameters(0.1-0.55 mm)and mass flow rates covering the typical marine medium-speed diesel injections are designed and customized,and the constant volume chamber(CVC)with high temperature and pressure is used to simulate the actual in-cylinder working conditions of the diesel engine for the spray visualization *** study the asymmetry of the fuel sprays discharged from a diesel injector,the multi-orifice nozzle is simplified as a dual-orifice nozzle in this *** with X-ray Computed Tomography(CT)imaging technology,the influences of the nozzle internal structure on the spray and flame asymmetry are studied in the constructed supercritical *** is found that the asymmetry of the inlet angle and the equivalent length-diameter ratio is positively correlated with the inconsistency of the dual *** an increase in the injection pressure and nozzle diameter,the asymmetry of the dual spray becomes more pronounced,resulting in greater disparities in the ignition delay times and ignition positions of the two ***,the increase in nozzle diameter also leads to combustion instability,resulting in a flame with a serrated *** the increase of ambient temperature,the proportion of liquid phase in the jet decreases and the relative density of spray front decreases.

关键词： dual-orifice nozzle nozzle structure atomization spray flame asymmetry

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职业教育吸引力的驱动机制研究:一个利益相关者视角

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河北师范大学学报（教育科学版） 2012年第3期14卷 73-77页

作者：李名梁天津大学管理与经济学部天津300071 天津外国语大学国际商学院天津300204

职业教育是我国教育系统的四大类型之一,其利益相关者之间的关系成为其吸引力提升的突出因素。不同利益相关者的利益诉求不同,其价值预期、利益偏好和行为方式直接影响职业教育可持续发展。从政府的政策支持机制、企业的价值诱导机制、... 详细信息

职业教育是我国教育系统的四大类型之一,其利益相关者之间的关系成为其吸引力提升的突出因素。不同利益相关者的利益诉求不同,其价值预期、利益偏好和行为方式直接影响职业教育可持续发展。从政府的政策支持机制、企业的价值诱导机制、师生的学习成长机制、院校的质量保障机制、媒体的舆论引导机制以及第三方机构的社会参与机制等,驱动职业教育吸引力的提升,以推动我国职业教育的稳定与健康发展。

关键词：职业教育职业教育吸引力利益相关者驱动机制

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证券登记制度研究——兼论商事登记制度的发展

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法学论坛 2006年第4期21卷 64-68页

作者：李明良上海交通大学法学院上海200030

由于证券市场在国家经济生活中的地位不断提升,证券投资成为商事领域中不可或缺的部分。因此在商事登记制度中,证券登记制度应是重要的内容之一。随着证券市场的制度创新,证券登记制度也发展了传统的商事登记制度,即传统的商事登记制度... 详细信息

由于证券市场在国家经济生活中的地位不断提升,证券投资成为商事领域中不可或缺的部分。因此在商事登记制度中,证券登记制度应是重要的内容之一。随着证券市场的制度创新,证券登记制度也发展了传统的商事登记制度,即传统的商事登记制度专注于商事主体地位的确立,而证券登记制度则注重于商事(证券)主体权利状态的确认和商事(证券)行为状态的确认。

关键词：证券登记商事登记商事登记法

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基于空频联合加扰的物理层安全算法

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电子与信息学报 2013年第12期35卷 2966-2971页

作者：李明亮黄开枝钟州国家数字交换系统工程技术研究中心郑州450002

当采用空域加扰实现物理层安全时,构造的多天线加权向量在合法信道上的投影具有恒模特性,窃听者能够利用这一特性截获私密信息。针对这一问题,该文设计了一种基于空频联合加扰的物理层安全算法。首先,在各个子载波上构造多天线随机加权... 详细信息

当采用空域加扰实现物理层安全时,构造的多天线加权向量在合法信道上的投影具有恒模特性,窃听者能够利用这一特性截获私密信息。针对这一问题,该文设计了一种基于空频联合加扰的物理层安全算法。首先,在各个子载波上构造多天线随机加权向量,使构造的加权向量在合法信道上的投影均等于随OFDM符号快变的参考变量;然后,通过参考子载波的加权向量传递参考信息使得合法用户能够正确解调其余子载波的接收信号;而窃听者无法获得有用参考信息,从而无法解调接收信号。仿真结果表明当信噪比(SNR)达到10 dB时,合法用户的解调误比特率(BER)为510-,而窃听者无法利用盲均衡、类MUSIC等方法截获私密信息。

关键词：无线通信物理层安全空频联合加扰 MISO—OFDM系统

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Genetic Analysis of the Resistance in Six Newly-bred Rice Varieties to the Whitebacked Planthopper,Sogatella furcifera

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Agricultural Sciences in China 2002年第3期1卷 319-322页

作者： li Xi-ming, MA liang-yong, liU Guang-jie, ZHUANG Jie-yun, SHEN Jun-hui and MIN Shaokai(China National Rice Research Institute, Hangzhou 310006) China National Rice Research Institute Hangzhou 310006

The paper reports the study on resistance in 6 newly-bred rice varieties, such as Nongxiang 16 and 9234, to the whitehacked planthopper, Sogatella furcifera. In crossing with the susceptible Taichung Native 1 (TN1), the resistance of their F1 and F2 populations and the back-crossed BC1F1 populations have been evaluated. The resistance to 5. furcifera in Zhenongda 6022, 9234 and Zhongjian 96-3 was controlled by a single dominant gene, and by a single recessive gene in Nongxiang 16, R40 and Shuhui 881, respectively. These varieties possessed good agronomical characteristics and could be used in further rice breeding and rice production.

关键词： Rice Sogatella furcifera Resistance Dominant gene Recessive gene Genetical analysis

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