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Pollution of hazardous substances in industrial construction and demolition wastes and their multi-path risk within an abandoned pesticide manufacturing plant

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Frontiers of Environmental Science & Engineering 2017年第1期11卷 123-135页

作者： Sheng Huang Xin Zhao yanqiu sun Jianli Ma Xiaofeng Gao Tian Xie Dongsheng XU Yi Yu Youcai Zhao The State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai 200092 China Shanghai Chengpei Enterprise Management Consulting Co. Ltd. Shanghai 200232 China Tianjin Academy of Environmental Sciences Tianjin 300191 China Debin Environmental Protection and Technology Holding Co. Ltd. Shanghai 200092 China Shanghai Design Institute in Environmental Sanitary Engineering Shanghai 200092 China

Exploration of heavy metals and organic pollutants, their leaching capacity along with health and environmental risks in contaminated industrial construction and demolition waste （ICDW） within a pesticide manufacturing plant were investigated. A maximum content of 90.8 mg·kg-1 Cd was found present in the wastes, which might originate from phosphorus rocks and industrial sulfuric acid used in pesticide production processes. An average concentration of 979.8 mg·kg-1 dichlorovos and other 11 organophosphorus pesticide were also detected. Relatively high leaching rates of around 4.14‰ were obtained from laboratory simulated ICDW using both glacial acetic acidsodium hydroxide and deionized water. Pesticide pollutants had the strongest tendency to retaining on dry bricks （leaching rate 1.68 9‰） compared to mortar-coatings, etc. due to their different physical characteristics and octanol-water partioning coefficient. Mobility of pesticide from on-site ICDW by water was spatially correlated to waste types, process sections and human activities, with a flux of leaching rate between 5.9‰ to 27.4%. Risk-based corrective action （RBCA） model was used to simulate the risk of contaminated ICDW debris randomly scattered. Oral and demlal ingestion amount by local workers was 9.8 × 10-3 and 1.9 × 10-2 mg.（kg-d）-1, respectively. Potential leaching risk to aquatic systems exceeded the limit for nearly 75% waste. Environmental and health risk exceedance was found in most ICDW, while the risk value of the most severely contaminated brick waste was 660 times beyond critical level. Implications for waste management involving construction and deconstruction work, waste transferring and regulation supplying were also provided.

关键词： Industrial demolition wastes Heavy metals Pesticides Leaching characteristics Risk assessment Waste management

缄默的“场域”力量:高校思政课教学风格论析

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江苏高教 2024年第8期 118-124页

作者：孙艳秋安徽师范大学马克思主义学院安徽芜湖241002

高校思政课教学的风格化,在完善高校思政课的教学过程、生成高校思政课教学的实践性知识以及促进高校思政课教师专业发展等方面的价值呼唤教学风格的出场。高校思政课教师的教学风格,就是教师能动地反映和认识高校思政课的教学风格现象... 详细信息

高校思政课教学的风格化,在完善高校思政课的教学过程、生成高校思政课教学的实践性知识以及促进高校思政课教师专业发展等方面的价值呼唤教学风格的出场。高校思政课教师的教学风格,就是教师能动地反映和认识高校思政课的教学风格现象和行动过程等,是对高校思政课教学风格的感受、关注、认知的“知”与自觉的行为取向、具体行动的“行”的统一,并以积极能动的高校思政课教学风格实践为落脚点。高校思政课教师教学风格的生成,除了需要经由以高校思政课教师的教学风格与高校思政课教学实践的矛盾运动为动力源与以多元组织力量推动为支持力量的协同作用来推动外,还需要经由风格意义的发现与认知、风格意识的形成和确立以及教学风格的形成与彰显这三个阶段的动态形塑。

关键词：高校思政课思政课教师教学风格 “场域”力量

课堂教学中的“技术崇拜”:症候、成因与治理

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电化教育研究 2018年第7期39卷 77-82,90页

作者：孙艳秋河海大学马克思主义学院江苏南京211100

技术崇拜可概括为教师在课堂教学中对技术的过度依赖并蜕变为一种惯性或惰性,表现出对技术效用的乌托邦式幻想、对技术"养眼"效果的精神依赖、技术运用行为的"戒断症状"与技术使用寿命取决于学生的"耐受性"等症候,这与工具理性支配下的... 详细信息

技术崇拜可概括为教师在课堂教学中对技术的过度依赖并蜕变为一种惯性或惰性,表现出对技术效用的乌托邦式幻想、对技术"养眼"效果的精神依赖、技术运用行为的"戒断症状"与技术使用寿命取决于学生的"耐受性"等症候,这与工具理性支配下的思维偏差、多重心理效应挤压下的理性阙如、对教学现代化内涵误读下的认知谬误以及视觉传播时代际遇等密切相关。为此,亟须通过对技术与教学关系的认识由"空想"转向"科学"、以教学艺术的"养心"延展技术手段的"养眼"、技术运用活动由"非理性"走向"理性"、学校等组织指导技术运用水平由"低层次"转向"高层次"以及课堂教学评价由"技术运用"转向"教学质量"等途径来治理技术崇拜。

关键词：教师技术技术崇拜课堂教学教学效益

Superconductivity in epitaxially grown LaVO_(3)/KTaO_(3)(111)heterostructures

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Chinese Physics B 2023年第3期32卷 19-24页

作者：刘源刘中然张蒙孙艳秋田鹤谢燕武 Interdisciplinary Center for Quantum Information State Key Laboratory of Modern Optical Instrumentationand Zhejiang Province Key Laboratory of Quantum Technology and DeviceSchool of PhysicsZhejiang UniversityHangzhou 310027China Center of Electron Microscope State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450052China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China

Complex oxide heterointerfaces can host a rich of emergent phenomena,and epitaxial growth is usually at the heart of forming these ***,a strong crystalline-orientation-dependent two-dimensional superconductivity was discovered at interfaces between KTaO_(3)single-crystal substrates and films of other ***,rare of these oxide films was epitaxially ***,we report the existence of superconductivity in epitaxially grown LaVO_(3)/KTaO_(3)(111)heterostructures,with a superconducting transition temperature of~0.5 ***,no superconductivity was detected in the(001)-and(110)-orientated LaVO_(3)/KTaO_(3)heterostructures down to 50 ***,we find that for the LaVO_(3)/KTaO_(3)(111)interfaces to be conducting,an oxygen-deficient growth environment and a minimum LaVO_(3)thickness of~0.8 nm(~2 unit cells)are needed.

关键词： interfaces superconductivity epitaxy

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基于有界信任模型的地铁突发事件信息传播

系统工程理论与实践 2017年第12期37卷 3244-3252页

作者：赵海峰孙艳秋 Edison TSE 同济大学经济与管理学院上海200092 斯坦福大学管理科学与工程系帕罗奥多94043

地铁突发事件一直是社会关注的热点问题,事件中的信息传播和控制往往也会决定突发事件的严重程度.本文以地铁突发事件为背景,考虑了地铁突发事件的时间有限性和空间有限性特征,在传统有界信任模型的基础上,引入了局部沟通和有限理性两... 详细信息

地铁突发事件一直是社会关注的热点问题,事件中的信息传播和控制往往也会决定突发事件的严重程度.本文以地铁突发事件为背景,考虑了地铁突发事件的时间有限性和空间有限性特征,在传统有界信任模型的基础上,引入了局部沟通和有限理性两个因素,并根据突发事件发生的时间考虑了地铁停靠前和停靠后两个不同的阶段,建立了地铁突发事件信息传播模型.通过大量仿真实验,发现在地铁突发事件中,局部沟通和有限理性都会导致乘客观点剧烈波动,使得整个系统长时间处于极不稳定的状态;而乘客密度对乘客的观点收敛起正向作用,密度越大,观点越容易收敛.而在列车停靠后,乘客越向车门方向集中,观点波动幅度越大,并在最后急剧收敛成一致,但疏散速率越高,反而会减缓乘客观点的波动幅度和收敛速度.本文的研究结果为地铁突发事件中的现象分析提供了理论依据,对地铁突发事件信息的控制具有重要意义.

关键词：地铁突发事件有界信任模型信息传播局部沟通有限理性疏散速率

Theoretical Investigations on the Reaction Containing Sulfur And Nitrogen Species in Combustion Chemistry

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Theoretical Investigations on the Reaction Containing Sulfur...

Theoretical Investigation on the Mechanisms and Dynamics of the Reaction CHF2OCF2CHFCl + Cl

中国化学会第29届学术年会

作者： yanqiu sun Xu Wang Fengyang Bai Rongshun Wang Xiumei Pan Faculty of Chemistry Institute of Functional Material Chemistry Northeast Normal University

Aerosol particles suspended in the air not only affect the visibility of atmosphere, but also harm human health. Combustion of fuels is an important source of particulate matter in the atmosphere. The mutual reaction among combustion products is the source of secondary particles. HOSO is a key intermediate in the combustion of fuels containing sulfur and plays an important role in the field of atmospheric and combustion chemistry. The HOSO was formed via the reaction of OH and SO or SO2 and H. It is important to investigate the role which HOSO plays in atmosphere. The existence of nitrogen dioxide, water and ammonia from atmosphere will react with the HOSO. Geometries optimizations and frequency computations were performed at the B3LYP/6-311+G（d,p） level and ground-state potential energy surface, reaction Gibbs free energies and reaction enthalpies were also calculated at the CCSD（T）/aug-cc-pvdz//B3LYP/6-311+G（d,p） level. The reaction of three gases NO2, H2O and HOSO may proceed HOS（O）ONO-H2O, HOS（O）NO2-H2O, HOS（NO）O2-H2O, NO2-H2O-HOSO, HOSO-H2O-NO2 complexes. The complex HOS（O）ONO-H2O and HOS（O）NO2-H2O all finally decompose to H2SO3 and trans-HONO by the energy barriers of-16.6 and 7.3 kcal/mol, respectively, the energy bases on the NO2, H2O and HOSO reactant energy level. The HOS（NO）O2-H2O can dissociate to the minor products, H2SO4 and HNO. The main products of the reaction of three gases NO2, H2O and HOSO are H2SO3 and trans-HONO. NH3 molecule plays a critical role to low the Gibbs free energy barrier due to making the acid more stable, so the final products of title reaction are NH4HSO3, NH4NO2, NH4HSO4 and HNO gases. The NH4+HSO3- ion pairs are formed with the four unites of H2SO3-NH3, as will NH4+HSO4- ion pairs were also investigated theoretically. In summary, controlling the emissions of combustion products containing nitrogen and sulfur is an urgent problem in the pollution area.

关键词： HOSO NO2 NH3 reaction mechanism combustion chemistry

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Theoretical Investigation on the Mechanisms and Dynamics of ...

Theoretical Investigation of Homogeneous Gaseous Reaction of 2NO2（g）+nH2O（g） +nNH3（g）→Products（n=1,2）

中国化学会第十二届全国量子化学会议

作者： Fengyang Bai Xu Wang yanqiu sun Ziman jia Rongshun Wang Xiumei Pan Faculty of Chemistry Institute of Functional Material ChemistryNortheast Normal University

The theoretical investigation on the mechanisms and dynamics of the reaction CHF2OCF2CHFCl+Cl have been studied at the B3LYP/6-311G（d,p）,BHand LYP/6-311G（d,p）,M06-2X/6-311G（d,p）and further refined by CCSD（T）,QCISD（T）methods at the three low levels,*** theoretical reaction Gibbs free energies（△Grθ,298）and reaction Enthalpies（△Hrθ,298）are also calculated at the same *** results show that the barrier energy of the reaction CHF2OCF2CHFCl+Cl→CHF2OCF2CFCl+HCl is6.8kcal/mol,lower than the 10.6 kcal/mol of the CHF2OCF2CHFCl+Cl→CF2OCF2CHFCl+*** total rate constant k=2.90×10-15cm3 molecule-1 s-1 at 296K by means of canonical variational transition state at QCISD（T）//B3LYP/6-311G（d,p）level is in good agreement with the available data（3.2×10-15cm3 molecule-1s-1）.In the range of temperature（220-2000 K）,the variational effect is almost negligible,and the total rate constant is an positive temperature *** results show that the H-abstraction from-CHFCl group is the major product in the medium and low *** three-parameter expressions（in units of cm3molecule-1s-1）for the title reaction within 220-2000 K is k（T）=1.38×10-19 T 2.57exp（-2622.95/T）.

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Theoretical Investigation of Homogeneous Gaseous Reaction of...

中国化学会第十二届全国量子化学会议

作者： Xu Wang Fengyang Bai yanqiu sun Ziman Jia Rongshun Wang Xiumei Pan Faculty of Chemistry Institute of Functional Material ChemistryNortheast Normal University

The CCSD（T）//MP2/6-311G（d,p）level of theory was employed to investigate the formation mechanism of the homogeneous gaseous reaction of 2NO2（g）+n H2O（g）+n NH3（g）→Products（n=1,2）around room *** initio study indicates that the reaction may proceed through the formation of NH3·H2O（g）,NO2·NH3（g）,and NO2·H2O（g）*** complexes,HNO3·NH4ONO,HNO3·NH4NO2,and c-HONO·NH4NO3-2 can be formed by adding gaseous reactants to the NH3·H2O（g）,NO2·NH3（g）,and NO2·H2O（g）complexes,*** HNO3·NH4ONO,HNO3·NH4NO2,and c-HONO·NH4NO3-2 complexes can then be rearranged to produce c-HONO·NH4NO3,t-HONO·NH4NO3,and HNO3·t-NH4ONO complexes via a transition state,and the NH3 molecule acts as a medium,accepting and donating hydrogen atoms in the rearrangement *** results show that NH4NO2·NH4NO3 is formed as aerosol particulate matter when addition of a NO2 molecule to the（NH3）2·H2O·NO2 complex,our computational results also reveal that the presence of an addition water molecule can not only reduce the activation energy of the rearrangement process,but also stabilizing the complexes and products.

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基于K-Means聚类算法的消渴方剂研究

中华中医药学刊 2017年第1期35卷 173-178页

作者：刘广孙艳秋辽宁中医药大学辽宁沈阳110847

目的:利用聚类方法对治疗消渴方剂进行研究,实现对其用药规律较深层次的挖掘,从而为治疗消渴方剂的实际应用、药物有效组成与方剂组成药物规律的分析提供临床研究依据。方法:将搜集整理的消渴方剂进行标准化处理,转换成可以在Clementin... 详细信息

目的:利用聚类方法对治疗消渴方剂进行研究,实现对其用药规律较深层次的挖掘,从而为治疗消渴方剂的实际应用、药物有效组成与方剂组成药物规律的分析提供临床研究依据。方法:将搜集整理的消渴方剂进行标准化处理,转换成可以在Clementine中进行挖掘的数据形式,选用其中K-Means聚类分析方法,对治疗消渴方剂的整体用药规律进行探究。结果:通过多次对消渴方剂数据聚类后,结合收集的消渴方剂的药物组成分析,消渴方剂比较好的聚类数目为二类,治疗消渴疾病的常用药物有生地、熟地、天花粉、知母、泽泻、麦冬等。结论:可以了解到消渴方剂的药物组成规律,了解到消渴方剂的基础用药,进而为中医方剂理论的研究和新药的开发提供可参考的信息。

关键词：数据挖掘消渴聚类分析 K—Means