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Spatial-temporal Patterns of Urban Parks’Effects on the Sentiments and Their Associated Factors Based on Social Media Data——a Case Study in Beijing

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Journal of Geodesy and Geoinformation Science 2024年第2期7卷 95-110页

作者： YUAN Yuting WANG Juan WEI Yali zhu yanrong SHI Changsheng MENG Bin College of Applied Arts and Science Beijing Union UniversityBeijing 100191China Laboratory of Urban Cultural Sensing&Computing Beijing Union UniversityBeijing 100191China Beijing Guohuan Environmental Technology Co. Ltd.Tangshan 063020China

As the pivotal green space,urban parks play an important role in urban residents’daily *** can not only bring people physical health,but also can be more likely to elicit positive sentiment to those who visit ***,social media big data has provided new data sources for sentiment ***,there was limited researches that explored the connection between urban parks and individual’s ***,this study firstly employed a pre-trained language model(BERT,Bidirectional Encoder Representations from Transformers)to calculate sentiment scores based on social media ***,this study analysed the relationship between urban parks and individual’s sentiment from both spatial and temporal ***,by utilizing structural equation model(SEM),we identified 13 factors and analyzed its degree of the *** research findings are listed as below:①It confirmed that individuals generally experienced positive sentiment with high sentiment scores in the majority of urban parks;②The urban park type showed an influence on sentiment *** this study,higher sentiment scores observed in Eco-parks,comprehensive parks,and historical parks;③The urban parks level showed low impact on sentiment *** distinctions observed mainly at level-3 and level-4;④Compared to internal factors in parks,the external infrastructure surround them exerted more significant impact on sentiment *** instance,number of bus and subway stations around urban parks led to higher sentiment scores,while scenic spots and restaurants had inverse *** study provided a novel method to quantify the services of various urban parks,which can be served as inspiration for similar studies in other cities and countries,enhancing their park planning and management strategies.

关键词： urban parks sentiment analysis social media data SEM Beijing

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职业院校师生关系疏离的成因及优化路径探析——以教学活动为中心的质性考察

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西北成人教育学院学报 2024年第3期 34-43页

作者：朱彦蓉兰州城市学院幼儿师范学院甘肃兰州730070

职业院校是以培养学生技术应用能力为主线、强调学生理论学习与实践训练并重的教育机构,良好的师生关系对于学生职业素养的提升及师生共同体的构建具有重要意义。然而,在以教学活动为中心的质性考察中发现,教学内容的偏颇弱化了师生的... 详细信息

职业院校是以培养学生技术应用能力为主线、强调学生理论学习与实践训练并重的教育机构,良好的师生关系对于学生职业素养的提升及师生共同体的构建具有重要意义。然而,在以教学活动为中心的质性考察中发现,教学内容的偏颇弱化了师生的交互体验、教学评价的失衡拉大了师生的心理距离、教学督导制度的异化限制了师生关系的革新,最终诱发了职业院校师生关系的疏离现状。意图改善职业院校师生关系,需要坚持“理实一体”的教学理念,优化教学内容设计,强化师生交互体验;树立可持续发展评价观,建立多元评价体系,拉近师生心理距离;更新教学督导理念,灵活督察制度,促进现代化师生关系改革与建构。

关键词：职业院校师生关系教学内容教学评价教学督导制度

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商品展示技术赛项与技工院校装饰设计专业教学融通探究

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鞋类工艺与设计 2024年第17期4卷 126-128页

作者：骆文朱彦榕江苏省交通技师学院江苏镇江212000

本文运用对比分析法分析了国内外技工院校在装饰设计专业人才培养方面的不同模式,涉及江苏省交通技师学院、国家技能人才培养标准以及以德国为代表的国外教育体系。以商品展示技术赛项为例,分析该赛项对选手的专业技能、综合素质提出了... 详细信息

本文运用对比分析法分析了国内外技工院校在装饰设计专业人才培养方面的不同模式,涉及江苏省交通技师学院、国家技能人才培养标准以及以德国为代表的国外教育体系。以商品展示技术赛项为例,分析该赛项对选手的专业技能、综合素质提出了全方位要求,探究了商品展示技术赛项与技工院校装饰设计专业教学融通的方法。

关键词：展示设计技工院校设计专业教学

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牡蛎壳粉及其铝盐、铁盐改性产物处理高浓度含磷废水研究

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湖北大学学报（自然科学版） 2024年第2期46卷 174-181页

作者：薛思敏朱艳容陈默区域开发与环境响应湖北省重点实验室湖北大学资源环境学院湖北武汉430062 长江水利委员会水文局汉江水文水资源勘测局湖北襄阳441022

牡蛎壳广泛应用于污水中磷的去除,但是将牡蛎壳作为吸附剂来处理高浓度含磷废水的研究较少。本研究以天然牡蛎粉为实验对象,探究牡蛎壳粉及其铁盐、铝盐改性产物对1000 mg·L^(-1)模拟含磷水的处理效果。结果表明,Langmuir和准二级动力... 详细信息

牡蛎壳广泛应用于污水中磷的去除,但是将牡蛎壳作为吸附剂来处理高浓度含磷废水的研究较少。本研究以天然牡蛎粉为实验对象,探究牡蛎壳粉及其铁盐、铝盐改性产物对1000 mg·L^(-1)模拟含磷水的处理效果。结果表明,Langmuir和准二级动力学模型能更好地拟合牡蛎壳粉对高浓度含磷废水的吸附过程,R^(2)值分别为0.992和0.983。牡蛎壳粉对磷的理论饱和吸附量达到212 mg·g^(-1),且在pH为3时牡蛎壳粉对磷的吸附效果最好。当牡蛎壳粒径为100目时,其对磷的单位吸附量达到(41.96±4.58)mg·g^(-1)。在质量分数分别为1%~5%的铝盐、铁盐改性牡蛎壳粉获得的复合材料中,用1%Al(NO 3)3溶液改性的牡蛎壳粉对磷的吸附效果最好,单位吸附量达到了(55.73±4.34)mg·g^(-1),比未改性牡蛎壳粉提升了27%。本研究结果表明牡蛎壳及其铝盐、铁盐改性产物对高浓度含磷废水具有良好的除磷效果,值得进一步研究。

关键词：牡蛎壳粉高浓度含磷废水改性单位吸附量

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Approaching high-performance lithium storage materials by constructing Li_(2)ZnTi_(3)O_(8)@LiAlO_(2) composites

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International Journal of Minerals,Metallurgy and Materials 2023年第4期30卷 611-620页

作者： Jinpeng Qu Yushen Zhao Yurui Ji yanrong zhu Tingfeng Yi School of Materials Science and Engineering Northeastern UniversityShenyang 110819China Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province School of Resources and MaterialsNortheastern University at QinhuangdaoQinhuangdao 066004China

The Li_(2)ZnTi_(3)O_(8)@Li AlO_(2)was synthesized by a facile high-temperature solid-state *** LiAlO_(2)modification does not alter the morphology and particle size of Li_(2)Zn Ti_(3)O_(8)(LZTO).The LiAlO_(2)modification improves the structure stability,intercalation/deintercalation reversibility of lithium-ions,and electrochemical reaction activity of Li_(2)Zn Ti_(3)O_(8),and promotes the transfer of lithium *** from the unique component,Li_(2)Zn Ti_(3)O_(8)@Li AlO_(2)(8wt%) shows a good rate performance with charge capacities of 203.9,194.8,187.4,180.6,and177.1 mAh·g^(-1)at 0.5,1,2,3,and 5 C,***,pure LZTO only delivers charge capacities of 134.5,109.7,89.4,79.9,and 72.9 mAh·g^(-1)at the corresponding *** at large charge–discharge rate,the Li_(2)Zn Ti_(3)O_(8)@Li AlO_(2)(8wt%) composite indicates a good cycle performance with a high reversible charge/discharge capacity of 263.5/265.8 mAh·g^(-1)at 5 C after 150 *** introduction of LiAlO_(2)on the surface of Li_(2)Zn Ti_(3)O_(8)enhances electronic conductivity of the composite,resulting in the good electrochemical performance of Li_(2)Zn Ti_(3)O_(8)@Li AlO_(2)***_(2)Zn Ti_(3)O_(8)@LiAlO_(2)(8wt%) composite shows a good potential as an anode material for the next generation of high-performance Li-ion batteries.

关键词： lithium-ion battery anode Li_(2)ZnTi_(3)O_(8) LiAlO_(2) lithium storage performance

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Approaching High-Performance Lithium Storage Materials by Constructing Hierarchical CoNiO_(2)@CeO_(2)Nanosheets

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Energy & Environmental Materials 2021年第4期4卷 586-595页

作者： Ting feng Yi Lingna Shi Xiao Han Fanfan Wang yanrong zhu Ying Xie School of Materials Science and Engineering Northeastern UniversityShenyang 110819China School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004China Key Laboratory of Dielectric and Electrolyte Functional Material Qinhuangdao China School of Chemistry and Chemical Engineering Anhui University of TechnologyMaanshan 243002China Key Laboratory of Functional Inorganic Material Chemistry Ministry of EducationSchool of Chemistry and Materials ScienceHeilongjiang UniversityHarbin 150080China

In this work,the hierarchical CoNiO_(2)@CeO_(2)nanosheet composites were successfully prepared by a one-step hydrothermal process with a subsequent annealing process for the first *** CeO_(2)nanoparticles successfully deposit on the surface of CoNiO_(2)nanosheet,and benefit the improvement of electrical contact between CoNiO_(2)and CeO_(2).CeO_(2)modification improve the reversibility of insertion/extraction of Li-ions and electrochemical reaction activity,and promotes the transport of *** of the unique architecture and component,the CoNiO_(2)@CeO_(2)nanosheet composites show high-reversible capacities,excellent cycling stability and good rate *** CoNiO_(2)@CeO_(2)(5.0 wt%)shows a charge/discharge capacity of 867.1/843.2 m Ah g^(-1)after 600 cycles at 1 A g^(-1),but the pristine CoNiO_(2)@CeO_(2)nanosheet only delivers a charge/discharge capacity of 516.9/517.6 m Ah g^(-1)after 500 *** first-principles calculation reveals that valid interfaces between CeO_(2)and NiCoO_(2)can be formed,and the formation process of the interfaces is *** strong interfacial interaction resulting in an excellent structure stability and thus a cycling stability of the CoNiO_(2)@CeO_(2)*** work provides an effective strategy to develop highperformance anode materials for advanced a lithium-ion battery,and the CoNiO_(2)@CeO_(2)nanosheet shows a sizeable potential as an anode material for next generation of high-energy Li-ion batteries.

关键词： anode material CoNiO_(2)@CeO_(2)nanosheet first principle calculation interface stability Li-ion battery

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一种医用加速器二极铁高精度特种电源的设计

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电气传动自动化 2024年第2期46卷 11-14,63页

作者：姚玉玺卢军祥朱彦荣天水电气传动研究所集团有限公司甘肃天水741020 甘肃省招标咨询集团有限责任公司甘肃兰州731000

随着我国综合国力的日益增强,对基础物理研究和原始创新的投入越来越大,特别是医用重离子治癌和质子治癌加速器行业。这些新型行业需要大量的高精度特种电源,高精度特种电源是专门针对粒子加速器装置中的磁铁负载而设计的,为其提供高精... 详细信息

随着我国综合国力的日益增强,对基础物理研究和原始创新的投入越来越大,特别是医用重离子治癌和质子治癌加速器行业。这些新型行业需要大量的高精度特种电源,高精度特种电源是专门针对粒子加速器装置中的磁铁负载而设计的,为其提供高精度的励磁电流,约束粒子束流按照物理要求进行运动,高精度特种电源对电源输出电流的电流误差(平顶)和跟踪误差要求极高。本文通过借助PLECS仿真软件构建模型,仿真验证了电源设计结论的正确性,再通过实际测试,最终实现了电源的设计。

关键词：高精度特种电源电流误差跟踪误差 PLECS仿真

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Synthesis and physicochemical properties of LiLa_(0.01)Mn_(1.99)O_(3.99)F_(0.01) cathode materials for lithium ion batteries

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Rare Metals 2008年第5期27卷 496-501页

作者： YI Tingfenga ZHOU Anna zhu yanrong zhu Rongsun HU Xinguo School of Chemistry and Chemical Engineering A nhui University of Technology Ma＇anshan 243002 China Department of Applied Chemistry Harbin Institute of Technology Harbin 150001 China

Spinel lithium manganese oxide cathode materials were synthesized using the ultrasonic-assisted sol-gel method. The synthesized samples were investigated by differential thermal analysis （DTA） and thermogravimetry （TG）, powder X-ray diffraction （XRD）, scanning electron microscopy （SEM）, cyclic voltammetry （CV）, and the charge-discharge test. TG-DTA shows that significant mass loss occurs in two temperature regions during the synthesis of LiLa0.01Mn1.9903.99F0.01. XRD data indicate that all samples exhibit the same pure spinel phase, and LiLa0.01Mn1.9903.99F0.01 and LiLa0.01Mn1.9904 samples have a better crystallinity than LiMn2O4. SEM images indicate that LiLa0.01Mn1.9903.99F0.01 has a slightly smaller particle size and a more regular morphology structure with narrow size distribution. The charge-discharge test reveals that the initial capacities of LiMn2O4, LiLa0.01Mn1.99O4, and LiLa0.01Mn1.99O3.99F0.01 are 130, 123, and 126 mAh·g^-1, respectively, and the capacity retention rates of the initial value, after 50 cycles, are 84.8%, 92.3%, and 92.1%, respectively. The electrode coulomb efficiency and CV reveal that the electrode synthesized by the ultrasonic-assisted sol-gel （UASG） method has a better re- versibility than the electrode synthesized by the sol-gel method.

关键词： lithium ion batteries cathode material lithium manganese oxide synthesis physicochemical properties

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Nanosized zinc oxides-based materials for electrochemical energy storage and conversion: Batteries and supercapacitors

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Chinese Chemical Letters 2022年第2期33卷 714-729页

作者： Tingting Wei Nan Zhang Yurui Ji Junhong Zhang yanrong zhu Tingfeng Yi School of Materials Science and Engineering Northeastern UniversityShenyang 110819China Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology College of Chemistry and Chemical EngineeringLiaocheng UniversityLiaocheng 252059China School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004China Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province Qinhuangdao 066004China

Transition metal oxides(TMO) bring a novel direction for the development of energy store materials due to their excellent stability. They not only have high capacity and good cycle performance, but also are cheap and easily available. Zinc oxide(Zn O) as an important part of TMO have gradually attracted attention in the research of electrochemistry. Zn O, as a metal semiconductor with the advantages of wide band gap, possesses high ion migration rate, good chemical stability, simple preparation and low cost, and is widely used in various fields. However, poor conductivity, low permittivity and quick capacity decays quickly impede the commercial application of these electrodes. In recent years, in order to improve the structural stability, ion diffusion and conductivity of zinc oxides-based anodes, various strategies have been raised, such as structural design, surface modification and composition control. In this paper, the recent advances of zinc oxides-based materials for batteries and hybrid supercapacitors(SCs) were introduced. We comprehensively reviewed the prepared process, reaction mechanism and electrochemical performance and discussed the shortcoming of zinc oxides-based nanomaterials. In particular, several insights toward the future research development, practical applications and commercialization of energy storage devices are also proposed for improving the performance of zinc oxides-based materials.

关键词： Zinc oxides-based materials Battery Supercapacitors Nanomaterials Hierarchical structure

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静配中心护士职业防护行为现状与危害药物配置职业暴露关联分析

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中国职业医学 2024年第3期51卷 315-319页

作者：孙丹王海昌朱艳荣周晓燕中国人民解放军空军军医大学第一附属医院静配中心陕西西安710032

目的探讨静脉药物配置中心护士职业防护行为现状及其与危害药物配置职业暴露的关联。方法采用便利抽样法,选择西安市10所三级甲等医院312名静脉药物配置中心护士为研究对象,调查其危害药物职业接触情况,采用《护士职业防护行为问卷》... 详细信息

目的探讨静脉药物配置中心护士职业防护行为现状及其与危害药物配置职业暴露的关联。方法采用便利抽样法,选择西安市10所三级甲等医院312名静脉药物配置中心护士为研究对象,调查其危害药物职业接触情况,采用《护士职业防护行为问卷》对其职业防护行为进行调查。结果静脉药物配置中心护士危害药物职业暴露发生率为40.1%(125/312),其职业防护行为得分为(77.7±9.3)分。二分类logistic回归分析结果显示,文化程度、工龄、工作负荷、调配环境、药物包装、职业防护行为均是静脉药物配置中心护士危害药物职业暴露的影响因素(P值均<0.05)。结论静脉药物配置中心护士危害药物配置职业暴露发生率较高;应加强对其职业防护行为的知识培训,减少职业暴露的发生。

关键词：静配中心护士职业暴露危害药物职业防护行为

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