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Spatial-temporal Variation Characteristics of Water Quality in the Lower Reaches of the Nenjiang River

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Meteorological and Environmental Research 2024年第1期15卷 67-71页

作者： Xiangzhe MENG Jing WANG Yinglin XIE Fei PENG chunsheng wei Xin TIAN Lunwen WANG Jilin Bureau of Hydrology and Water Resources(Jilin Water Environment Monitoring Center) Changchun 130022China Information Center of Songliao Basin Committee of the Ministry of Water Resources Changchun 130022China Changchun Xinlicheng Reservoir Management Center Changchun 130000China

As an important river in the western part of Jilin Province,the lower reach of the Nenjiang River is an important wetland water source conservation area in Jilin Province.Within the watershed,it governs the Momoge Wetland,the Xianghai Wetland,and the Danjiang Wetland in Jilin Province.The main problem in the lower reaches of the Nenjiang River is the uneven distribution of water resources in time and space,and the intensification of land salinization.Zhenlai County and Da an City in the Nenjiang River Basin have sufficient surface water resources,with surface water as the drinking water source.Baicheng City and Tongyu County have scarce surface water resources,and both use groundwater as their domestic water source.The main polluted section in the basin is the Xianghai Reservoir,and the annual water quality evaluation is Class V.However,the water quality of the Tao er River,the main stream of the Nenjiang River,is significantly better than that of the Xianghai Reservoir.In order to better study the water environmental pollution situation in the Nenjiang River basin,monitoring data from five sections of non seasonal rivers in the basin from 2012 to 2021 were selected for studying water quality.This in-depth exploration of the water pollution status and river water quality change trends in the Nenjiang River basin is of great significance for future rural development,agricultural pattern transformation,and the promotion of water ecological civilization construction.

关键词： Lower reaches of the Nenjiang River Water quality Spatial-temporal variation

Spatiotemporal Variation Characteristics of Water Quality in the Yinma River

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Meteorological and Environmental Research 2023年第6期14卷 64-68页

作者： Shukun JIANG Jing WANG Yinglin XIE chunsheng wei Xin TIAN Lunwen WANG Jilin Provincial Bureau of Hydrology and Water Resources(Jilin Provincial Water Environment Monitoring Center) Changchun 130022China Changchun Xinlicheng Reservoir Management Center Changchun 130000China

As an important river in the central part of Jilin Province, the Yinma River plays a crucial role in the daily lives of the people in Jilin Province. In this paper, 15 cross sections were selected in the Yinma River basin. Based on the water quality monitoring data from 2012 to 2021, referring to the Environmental Quality Standards for Surface Water (GB 3838-2002) and historical monitoring data of the river, dissolved oxygen (DO), five-day biochemical oxygen demand (BOD 5), permanganate index (COD Mn ), chemical oxygen demand (COD), ammonia nitrogen (NH 4-N), total phosphorus (TP), and total nitrogen (TN) were determined as 7 evaluation indicators, and the water quality of 15 cross sections in the Yinma River basin was comprehensively evaluated. A characteristic analysis was conducted on the water quality of the Yinma River, and its pollution sources were identified. Based on the conclusions, constructive control measures were proposed.

关键词： Yinma River Water quality Variation characteristics

体育强国背景下中华体育精神融入高职体育课程思政的研究与实践

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包头职业技术学院学报 2024年第2期25卷 101-104,119页

作者：韦春生李凤华北京工业职业技术学院体育部北京100042

中华体育精神是建设体育强国的精神支撑,具有不可替代的作用和价值。课程思政教育是高职院校体育教学的重要组成部分,促进两者有效融合,对于人才培养功不可没。本文概述体育强国、中华体育精神、体育课程思政的内涵和要义,分析研究中华... 详细信息

中华体育精神是建设体育强国的精神支撑,具有不可替代的作用和价值。课程思政教育是高职院校体育教学的重要组成部分,促进两者有效融合,对于人才培养功不可没。本文概述体育强国、中华体育精神、体育课程思政的内涵和要义,分析研究中华体育精神融入高职体育课程思政的时代价值,从多个方面进行探索与实践,实现体育课程思政的育人功能。

关键词：中华体育精神体育课程思政高职体育

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中小学生使用“鼻吸能量棒”的隐患及应对

中国药物滥用防治杂志 2024年第3期30卷 394-397页

作者：吴天琪窦瑞卿魏春生中国刑事警察学院辽宁沈阳110854

“鼻吸能量棒”是当下在中小学生群体中流行的一款产品,然而中小学生使用该类产品存在诸多隐患。研究表明,“鼻吸能量棒”的主要成分为薄荷脑、樟脑、冰片以及植物精油,具有兴奋、镇痛作用,长期使用有成瘾可能,危害中小学生的呼吸系统... 详细信息

“鼻吸能量棒”是当下在中小学生群体中流行的一款产品,然而中小学生使用该类产品存在诸多隐患。研究表明,“鼻吸能量棒”的主要成分为薄荷脑、樟脑、冰片以及植物精油,具有兴奋、镇痛作用,长期使用有成瘾可能,危害中小学生的呼吸系统、神经系统以及消化系统。本文对“鼻吸能量棒”进行概述,分析其存在的隐患,并提出对策与建议。

关键词： “鼻吸能量棒” 中小学生成瘾薄荷脑

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甲基苯丙胺的电化学催化降解及机理研究

水处理技术 2024年第2期50卷 69-73页

作者：魏春生张丹凤吴晓亮刘伟华赵焕刘建国中国刑事警察学院辽宁沈阳110854 辽宁科技学院辽宁本溪117004 中国科学院金属研究所辽宁沈阳110016

甲基苯丙胺(Methamphetamine,METH)作为一种兴奋剂类毒品,正在全球范围内蔓延,研发高效、环保、低成本的销毁技术十分必要。本文设计了电化学催化降解METH的方法,通过扫描电镜(SEM)和元素分析对电极形貌结构及成分进行了分析,并利用气... 详细信息

甲基苯丙胺(Methamphetamine,METH)作为一种兴奋剂类毒品,正在全球范围内蔓延,研发高效、环保、低成本的销毁技术十分必要。本文设计了电化学催化降解METH的方法,通过扫描电镜(SEM)和元素分析对电极形貌结构及成分进行了分析,并利用气相色谱(GC)和循环伏安法(CV)对METH电化学降解过程和机制进行了探讨。结果表明,钛基钌铱电极(DSA电极)表面的裂纹结构,大大提高了电极活性面积,对METH的降解效果优于碳纤维电极和Pt电极。电解条件优化后,DSA电极对METH的电化学降解效果显著,METH基本完全降解。METH的降解以间接氧化为主,降解反应遵循一级反应动力学。电化学催化可以快速高效的降解METH,且环境友好,是对METH无害化处理的有效手段。

关键词：甲基苯丙胺电化学降解 DSA电极降解机理

Biological Evaluation of Water Quality for Benthos in Typical Rivers of Eastern Jilin Province

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Asian Agricultural Research 2021年第7期13卷 42-44页

作者： Lei XU Jing WANG Xiaolai WU Shukun JIANG chunsheng wei Hydrology and Water Resources Bureau of Jilin Province Water Environment Monitoring Center of Jilin Province Changchun 130000 China Xinlicheng Reservoir Management Bureau of Changchun City Jilin Province Changchun 130000 China

Benthos are aquatic organisms living at the bottom of water bodies for all or most of their life history.Apart from the settled and moving living,their forms of habitat are mostly attached to the hard substrate like rocks or soft bases such as mud and sand.In addition,there are benthic species that attach to the plant surfaces or other benthic animals,and inhabit the intertidal zone.In terms of feeding methods,most benthic animals feed on suspended matter and sediment.Most of them are invertebrates and are a complex ecological group.According to the size,they can be divided into macrobenthos and meio-benthos[1].Benthos are an important part of the water ecosystem.Using a typical river(Gaya River)in eastern Jilin Province,this paper analyzed the water quality,the components of benthic organisms and their biological density through sampling surveys of three typical locations in the upper,middle and lower reaches of the Gaya River.In addition,it made a biological evaluation of the water quality of the Gaya River.

关键词： Eastern Jilin Province Typical River Benthos Evaluation scheme

Multifunctional polyeugenol-based nanoparticles with antioxidant and antibacterial properties

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Particuology 2024年第4期87卷 194-204页

作者： Qiaoqiao Lan Xuying Zhang Jiaming Liang wei Wang Leili Lv Jiamin He Zefeng Wang chunsheng Qu The People's Hospital of Lishui Lishui323000China College of Ecology Lishui UniversityLishui32300China R&D Center of Green Manufacturing New Materials and Technology of Synthetic Leather Sichuan University-Lishui University Lishui323000China

Over the past few decades,extensive scientific has been dedicated to polymer synthesis employing renewable resources.In this study,we devised and synthesized multifunctional polyeugenol-based nanoparticles,exhibiting remarkable antioxidant and antibacterial properties.The grafting of eugenol onto the nanoparticle surface was achieved via a thiol-ene chemical reaction with a grafting rate of 3.5%.To comprehend the properties of the synthesized nanoparticles,we employed Fourier transform infrared spectroscopy,X-ray photoelectron spectroscopy and pyrolysis-gas chromatography mass spectrometry.Subsequent scanning electron microscopic and transmission electron microscopic analyses revealed the presence of a crosslinked structure within the polyeugenol-based nanoparticles,as well as a heteroge-neous microsphere structure on the surface.Due to the inherent crosslinking structure,the polyeugenol-based nanoparticles demonstrated robust the resistance to solvents,as ascertained through thermog-ravimetric analysis and solvent resistance tests.Notably,nitrogen adsorption/desorption studies confirmed the adsorption capacity of the polyeugenol-based nanoparticles,rendering them potentially suitable for drug transport applications.Moreover,the assays for assessing cytocompatibility and reactive oxygen species scavenging activities demonstrated better performance of the eugenol-based nano-particles compared to eugenol.Furthermore,the polyeugenol-based nanoparticles exhibited certain bactericidal activities against Escherichia coli,Staphylococcus aureus,and Fusobacterium nucleatum.Consequently,these observations indicated the nontoxic nature and expansive application prospects of the polyeugenol-based nanoparticles in the domains of medicine and food preservation.This work presented a pioneering concept for the development of antioxidant and antibacterial multifunctional polymer materials derived from eugenol.

关键词： Polyeugenol-based nanoparticles Bactericidal activities Cytocompatibility

Research on Recommendation Algorithms Based on Cloud Models in Probabilistic Linguistic Environments

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Journal of Systems Science and Information 2024年第1期12卷 96-112页

作者： Peng YANG Xifeng MA Meng wei chunsheng CUI Libin CHE College of Computer and Information Engineering Henan University of Economics and LawZhengzhou 450046China

To solve the problem that the traditional cloud model can't directly process the textual review information in the recommendation algorithm,this paper combines the merits of the cloud model in transforming qualitative and quantitative knowledge with the multi-granularity advantages of probabilistic linguistic term sets in representing uncertain information,and proposes a recommendation algorithm based on cloud model in probabilistic language environment.Initially,this paper quantifies the attributes in the review text based on the probabilistic linguistic term set.Subsequently,the maximum deviation method is used to determine the weight of each attribute in the evaluation information of the product to be recommended,and the comprehensive evaluation number and attribute weight are converted into the digital characteristic value of the cloud model by using the backward cloud generator.Finally,the products are recommended and sorted based on the digital characteristic value of the cloud model.The algorithm is applied to the recommendation of 10 hotels,and the results show that the method is effective and practical,enriching the application of cloud models in the recommendation field.

关键词： recommendation algorithm cloud model probabilistic linguistic term set text reviews

Dual-targeting AAV9P1-mediated neuronal reprogramming in a mouse model of traumatic brain injury

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Neural Regeneration Research 2024年第3期19卷 629-635页

作者： Jingzhou Liu Xin Xin Jiejie Sun Yueyue Fan Xun Zhou wei Gong Meiyan Yang Zhiping Li Yuli Wang Yang Yang chunsheng Gao State Key Laboratory of Toxicology and Medical Countermeasures Beijing Institute of Pharmacology and ToxicologyBeijingChina Academy of Medical Engineering and Translational Medicine Medical CollegeTianjin UniversityTianjinChina

Traumatic brain injury results in neuronal loss and glial scar formation.Replenishing neurons and eliminating the consequences of glial scar formation are essential for treating traumatic brain injury.Neuronal reprogramming is a promising strategy to convert glial scars to neural tissue.However,previous studies have reported inconsistent results.In this study,an AAV9P1 vector incorporating an astrocyte-targeting P1 peptide and glial fibrillary acidic protein promoter was used to achieve dual-targeting of astrocytes and the glial scar while minimizing off-target effects.The results demonstrate that AAV9P1 provides high selectivity of astrocytes and reactive astrocytes.Moreover,neuronal reprogramming was induced by downregulating the polypyrimidine tract-binding protein 1 gene via systemic administration of AAV9P1 in a mouse model of traumatic brain injury.In summary,this approach provides an improved gene delivery vehicle to study neuronal programming and evidence of its applications for traumatic brain injury.

关键词： AAV9P1 astrocytes astrocyte-to-neuron conversion GFAP promoter glial scar induced neurons neuronal reprogramming P1 peptide PTBP1 traumatic brain injury