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基于3S技术的湿地生态系统动态监测

沈阳建筑大学学报（自然科学版） 2016年第2期32卷 361-369页

作者：刘玉梅刘芳孙贯益沈阳建筑大学交通学院辽宁沈阳110168

目的研究遥感(RS)、地理信息系统(GIS)、全球定位系统(GPS)相结合的3S技术在湿地生态系统动态监测与评估过程中的应用,并证明其有效性和可行性.方法以福田红树林自然保护区为例,通过3S技术获取2006—2015年间3个时相原始的遥感影像数据... 详细信息

目的研究遥感(RS)、地理信息系统(GIS)、全球定位系统(GPS)相结合的3S技术在湿地生态系统动态监测与评估过程中的应用,并证明其有效性和可行性.方法以福田红树林自然保护区为例,通过3S技术获取2006—2015年间3个时相原始的遥感影像数据,并进行预处理;建立数据库,提取湿地信息;结合实地观测对提取的数据进行纠正;根据各项湿地生态系统评价指标对研究区湿地的生态系统的湿地面积变化、空间分布变化、植被覆盖率变化、景观格局变化进行定量统计分析.结果 3S技术实现了对福田红树林自然保护区部分范围的湿地生态系统近10年的动态监测,得到了湿地生态系统的现状和变化趋势,提高了监测的自动化、智能化水平.结论利用3S技术可以实时、全面地掌握湿地生态系统的动态变化,是对湿地进行保护和管理高效而准确的方法.

关键词： 3S技术动态监测湿地生态系统评价指标

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职业学校网络心理健康教育及价值探析

文化创新比较研究 2019年第34期3卷 25-26页

作者：孙冠一张媛媛郑州电力高等专科学校

伴随着职业教育的高速发展,职业学校数量和学生人数不断攀升,学生心理健康教育的重要性日益凸显。然而,职业学校心理健康教育师资力量和设备条件却较为缺乏,大多数职业学校与普通高中及普通高校相比,心理健康教育师资匮乏,条件简陋,更... 详细信息

伴随着职业教育的高速发展,职业学校数量和学生人数不断攀升,学生心理健康教育的重要性日益凸显。然而,职业学校心理健康教育师资力量和设备条件却较为缺乏,大多数职业学校与普通高中及普通高校相比,心理健康教育师资匮乏,条件简陋,更没有系统性的教育条件,这与学生的现实需求形成反差。该文对职业学校网络心理健康教育的概念进行了阐述,对职业学校网络心理健康教育的体系进行了明确,并深入分析了网络心理健康教育的价值。

关键词：职业学校网络心理健康教育

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卡扣式快换系统电池包模态的分析和优化

汽车实用技术 2024年第16期49卷 10-15页

作者：王水利孙冠一关呈军李继明王宇霄蓝谷智慧(北京)能源科技有限公司北京100176

文章针对卡扣式快换锁体对电池包Z向模态的影响进行研究,通过对快换锁体Z向容差行程的分级调整和结构优化,限位机构结构和限位形式调整,缓冲块不同硬度和应力变化三个维度分析,并结合计算机辅助工程(CAE)分析和振动台架扫频测试多种手... 详细信息

文章针对卡扣式快换锁体对电池包Z向模态的影响进行研究,通过对快换锁体Z向容差行程的分级调整和结构优化,限位机构结构和限位形式调整,缓冲块不同硬度和应力变化三个维度分析,并结合计算机辅助工程(CAE)分析和振动台架扫频测试多种手段。一定条件下,在满足快换系统加解锁功能的基础上,探索分析快换锁体容差位移尺寸,限位机构形式,Z向缓冲块反向应力大小三个关键因素的的最佳尺寸,结构形式和柔性连接应力值,研究确定最佳平衡参数,提高快换电池包Z向振动模态,使用寿命和经济性。

关键词：快换锁止振动模态振幅位移应力

Holistic identification and assessment of environmental risks of arable land use in two grain producing areas of China

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Ecosystem Health and Sustainability 2020年第1期6卷 382-397,381页

作者： guanyi Yin Zhulu Lin Xilong Jiang Jin sun Menglong Qiu College of Geography and Environment Shandong Normal UniversityJinanPR China Department of Agricultural and Biosystems Engineering North Dakota State UniversityFargoNDUSA Maize Research Institute Shandong Academy of Agricultural SciencesJinanPR China College of Surveying and Geo-informatics North China University of Water Resources and Electric PowerZhengzhouPR China Center for Land Resource Research in Northwest China Shaanxi Normal UniversityXi’anPR China

Taking two typical grain producing areas of southern(Dongting Lake Region)and northern China(Shandong Province)as examples,this study used fault tree analysis and parametric estimation to provide a comparative analysis for environmental risks of intensive arable land *** results show that(1)in the risks of eutrophication,toxicity,soil structure,greenhouse effect and air pollution,the greenhouse effect was the most prominent with the highest discharge;(2)the Dongting Lake Region discharged less pollutants annually than did Shandong Province,while surpassing Shandong in cumulative pollutant discharge in 2007-2018;(3)the spatial distribution of environmental risk in the Dongting Lake Region was mostly concentrated in the northern area,whereas that in Shandong Province displayed a scattered pattern;(4)in the Dongting Lake Region,Yueyang,Changde,and Yiyang were high environmental risk cities in 2007-2018,whereas in Shandong Province,Zaozhuang,Heze,Liaocheng,and Dezhou exhibited higher comprehensive environmental risk indexes in 2007-2008,while Rizhao replaced them in *** results indicated that ago-production material use must be controlled,reasonable zoning for areas posing environmental risks must be employed and cities with high environmental risk must be dynamically monitored to prevent the intensification of environmental risks of arable land use.

关键词： Environmental risk intensive arable land use major grain production area

Interactions of phenol and benzaldehyde in electrocatalytic upgrading process

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Chinese Chemical Letters 2024年第2期35卷 464-468页

作者： Lan Liang Chuanbin Wang Xukai Lu Yunan sun Beibei Yan Ning Li guanyi Chen Li'an Hou School of Environmental Science and Engineering Tianjin Key Lab of Biomass/Wastes UtilizationTianjin UniversityTianjin 300350China School of Mechanical Engineering Tianjin University of CommerceTianjin 300134China Georgia Tech Shenzhen Institute Tianjin UniversityShenzhen 518071China High Tech Inst Beijing Beijing 100085China

Biomass pyrolysis oil can be improved effectively by electrocatalytic hydrogenation(ECH).However,the unclear interactions among different components lead to low bio-oil upgrading efficiency in the conversion ***,benzaldehyde and phenol,as common compounds in bio-oil,were chosen as model *** interactions between the two components were explored in the ECH process by combining experiments and theoretical *** showed that phenol could accelerate the conversion of benzaldehyde in the *** selectivity of benzyl alcohol was increased from 60.9%of unadded phenol to 99.1%with 30 mmol/L phenol concentration at 5 *** inhibited the ECH of *** the presence of benzaldehyde,the conversion rate of phenol was below 10.0%with no cyclohexanone and cyclohexanol formation at 5 *** density functional theory(DFT)calculations revealed that the phenol could promote the adsorption of benzaldehyde and facilitate the targeted conversion of benzaldehyde on the active site by lowering the reaction energy *** research on the interaction between phenol and benzaldehyde in the ECH provides a theoretical basis for the application of ECH in practical bio-oil upgrading.

关键词： Interaction Bio-oil Electrocatalytic hydrogenation Phenol Benzaldehyde

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陈腐垃圾与原生垃圾共气化特性

化工进展 2025年第1期44卷 525-537页

作者：李灏孙昱楠李健陶俊宇程占军颜蓓蓓陈冠益天津商业大学机械工程学院天津300134 天津大学环境科学与工程学院天津300350 天津市有机废物安全处置与能源利用工程研究中心天津300072 天津市生物质废弃物资源化利用重点实验室/天津市生物油技术工程研究中心天津300072

垃圾填埋场中陈腐垃圾的过量积累会对周边土壤、地下水和空气造成环境污染。由于陈腐垃圾与原生垃圾组分的相似性,将陈腐垃圾与原生垃圾共气化是高效清洁处理陈腐垃圾的一种方法。本文通过在不同气化温度和掺混比下,探究共气化过程产物... 详细信息

垃圾填埋场中陈腐垃圾的过量积累会对周边土壤、地下水和空气造成环境污染。由于陈腐垃圾与原生垃圾组分的相似性,将陈腐垃圾与原生垃圾共气化是高效清洁处理陈腐垃圾的一种方法。本文通过在不同气化温度和掺混比下,探究共气化过程产物分布和合成气组分特点,分析陈腐垃圾与原生垃圾共气化协同效应。通过气化评价指标计算及响应面模拟,对掺混比及气化温度条件进行优化。结果表明,气化温度的升高促进固体残余物分解产气,提高产气率,700~1000℃气化温度下混合物的固体残余物实验值低于单一原料气化线性相加值,证明陈腐垃圾与原生垃圾共气化存在积极的协同作用促进固体焦的转化。合成气组分中H_(2)和CH_(4)高含量说明陈腐垃圾具有良好的气化特性,合成气各组分产率的实验值在900℃和1000℃条件下均大于计算值,说明较高气化温度促进合成气生成。气化评价指标中气体产率和碳转化率随陈腐垃圾掺混比和气化温度的升高增幅明显,在1000℃气化温度条件下,合成气热值和气化效率分别在陈腐垃圾掺混比为60%和80%时达到最大值。通过响应面方法模拟优化实验结果发现,陈腐垃圾在1000℃下单一气化可以得到H_(2)、CH_(4)产率最大值(188.44mL/g和104.22mL/g),但CO产率也达到最大值。陈腐垃圾掺混比在60%~89%范围内,气化温度接近1000℃,混合物共气化的合成气产物中H_(2)、CH_(4)含量较高,且可以获得较高的合成气热值、碳转化率和气化效率。本研究为陈腐垃圾与原生垃圾共气化技术研究与应用提供了基础。

关键词：陈腐垃圾原生垃圾合成气组分协同效应模拟优化

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Non-linear acoustic radiation by an underwater vibrating spherical shell

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Chinese Journal of Acoustics 1996年第1期15卷 8-20页

作者： sun Yudong SHEN Shungen and CHENG guanyi(China Ship Scientific Research Center, Wuxi 214082)

This paper deals with the non-linear propagation of sound waves radiated by a thin spherical shell vibrating in ideal lluid. Non-linear sound field is obtained by the method of renormalization proposed by Kelly and Nayfeh. Considering the acoustic load, we use Junger and his cooperators' spherical function expan8ion to obtain the structural response of the spherical shell. By combining both of the above methods, the structural response, the waveshape before the formation of shock wave and the first two order waves (including the 1st and 2nd harmonics, sum and difference frequency waves) are calculated respectively. They vary with frequency, distance and directions. Through the comparison of the above results with linear theoretical olles1 we analyse the rules of generation and propagation of non-linear waves.

关键词： Non-linear Acoustics radiation Spherical shell

与交流输电线路交叉或并行管道的安全评价方法

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腐蚀与防护 2025年第1期46卷 79-87页

作者：孙银娟姜子涛刘曼王九震邵治翠樊学华陈更生刘冠一长庆工程设计有限公司西安710018 中国石油大学(北京)油气管道输送安全国家工程实验室/石油工程教育部重点实验室/城市油气输配技术北京市重点实验室北京102249 中国石油工程建设有限公司北京设计分公司北京100085

高压交流输电线路通过电磁感应作用对埋地管道产生交流干扰,造成埋地管道的交流腐蚀。了解输电线路对管道的干扰规律,掌握输电线路与管道的安全评价方法,就可以从选线阶段合理设计,避免或者减小管道运行期间可能受到的干扰问题。通过数... 详细信息

高压交流输电线路通过电磁感应作用对埋地管道产生交流干扰,造成埋地管道的交流腐蚀。了解输电线路对管道的干扰规律,掌握输电线路与管道的安全评价方法,就可以从选线阶段合理设计,避免或者减小管道运行期间可能受到的干扰问题。通过数值模拟技术建立了交流输电线路对埋地管道交流干扰计算模型,计算研究了交流输电线路三相布置方式及相间距对管道的干扰规律,并确定了典型的输电线路等级和不同交叉角度下输电线路与管道的临界距离。结果表明:三相为水平布置时管道干扰电压最大,管道干扰电压随相间距线性增加;输电线路电压等级越高,需要的临界距离越大;输电线路与管道交叉角度越小,需要的临界距离越大,根据输电等级和输电线路长度的不同,交叉角度限值不同。在此基础上建立了临界距离图谱和安全评价方法,简化了临界距离的确定方法。

关键词：交流干扰交叉并行输电线路管道电磁感应

可生物降解塑料取代传统塑料--对碳排放的影响

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Engineering 2024年第1期32卷 152-162页

作者： guanyi Chen Jianyuan Li Yunan sun Zhi Wang Gary ALeeke Christian Moretti Zhanjun Cheng Yuan Wang Ning Li Lan Mu Jinyu Li Junyu Tao Beibei Yan Li'an Hou Interdisciplinary Innovation Lab for Environment and Energy School of Mechanical Engineering&School of Biotechnology and Food ScienceTianjin University of CommerceTianjin 300134China School of Environmental Science and Engineering Tianjin UniversityTianjin 300350China School of Ecology and Environment Tibet UniversityLhasa 850012China Tianjin Key Laboratory of Biomass Wastes UtilizationTianjin Engineering Research Center for Organic Wastes Safe Disposal and Energy UtilizationTianjin 300072China School of Chemical Engineering University of BirminghamBirmingham B152TTUK Department of Environmental Systems Science ETH ZürichZürich CH-8092Switzerland

In recent years,a great deal of attention has been focused on the environmental impact of plastics,includ-ing the carbon emissions related to plastics,which has promoted the application of biodegradable *** worldwide have shown high interest in replacing traditional plastics with biodegradable ***,no systematic comparison has been conducted on the carbon emissions of biodegrad-able versus traditional plastic *** study evaluates the carbon emissions of traditional and biodegradable plastic products(BPPs)over four stages and briefly discusses environmental and economic *** scenarios-namely,the traditional method,chemical recycling,industrial composting,and anaerobic digestion-are considered for the disposal of waste BPPs(WBPPs).The analysis takes China as a case *** results show that the carbon emissions of 1000traditional plastic products(plastic bags,lunch boxes,cups,etc.)were52.09-150.36 carbon emissions equivalent of per kilogram(kg CO_(2)eq),with the stage of plastic production contributing 50.71%-50.77%.In comparison,1000 similar BPPs topped out at 21.06-56.86 kg CO_(2)eq,approximately 13.53%-62.19%lower than traditional plastic *** difference was mainly at the stages of plastic production and waste disposal,and the BPPs showed significant carbon reduction potential at the raw material acquisition *** disposal plays an important role in environmental impact,and composting and anaerobic digestion are considered to be preferable disposal methods for ***,the high cost of biodegradable plastics is a challenge for their widespread *** study has important reference significance for the sustainable development of the biodegradableplastics industry.

关键词： Carbon emissions Biodegradable plastics Different disposal scenarios Daily life consumption Environmental and economic discussion