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视觉语法视角下城市形象宣传片互动意义构建研究——以盐城城市形象宣传片“Loving Yancheng”为例
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作者 杨杏 张之栩 《盐城工学院学报(社会科学版)》 2024年第3期77-80,共4页
城市形象是公众对一个城市的内在综合实力、外显表象活力和未来发展前景的具体感知、总体看法和综合评价,反映了城市总体的特征和风格。近年来,盐城市政府对城市发展规划、投资环境、生态环境、城市精神等方面加大了宣传,积极打造盐城... 城市形象是公众对一个城市的内在综合实力、外显表象活力和未来发展前景的具体感知、总体看法和综合评价,反映了城市总体的特征和风格。近年来,盐城市政府对城市发展规划、投资环境、生态环境、城市精神等方面加大了宣传,积极打造盐城国际生态城市形象。从视觉语法角度出发,对盐城城市形象宣传片“Loving Yancheng”中视觉模态进行分析,以探究该宣传片中视觉模态互动意义的构建策略。 展开更多
关键词 系统功能语言学 视觉语法 城市形象宣传片 互动意义
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Surveillance Report of the Prevalence and Risk Factors of Chronic Non-Communicable Diseases in Tinghu District,Yancheng City,2021
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作者 Lili Yan Zhiqin Kai 《Proceedings of Anticancer Research》 2024年第4期135-141,共7页
Objective:To comprehensively understand the changes and prevalence of major chronic diseases among residents of Tinghu District,Yancheng City,in 2021,and to analyze the trends of the major risk factors for the onset o... Objective:To comprehensively understand the changes and prevalence of major chronic diseases among residents of Tinghu District,Yancheng City,in 2021,and to analyze the trends of the major risk factors for the onset of chronic diseases in the region.Methods:Chronic diseases and their risk factors in Tinghu District in 2021 were monitored among the resident population who had lived in the district for five years or more and were aged 18 years or older.The survey was conducted using random cluster sampling,with 7,130 questionnaires collected.After data processing,7,012 valid questionnaires were obtained,resulting in a qualification rate of 98.35%.Results:Among the chronic diseases reported in the survey population,hypertension had the highest prevalence at 37.61%,followed by dyslipidemia at 37.19%.Other chronic diseases were ranked in order of prevalence from highest to lowest.Regardless of gender,the top three chronic diseases were hypertension,diabetes,and hyperlipidemia.Multifactorial regression analysis identified both non-preventable risk factors(such as family history,gender,and age)and preventable risk factors(such as smoking,sedentary behavior,overweight,and obesity)as significant contributors to the major chronic diseases in Tinghu District.Conclusion:Analyzing the trends in the main risk factors for chronic disease incidence in Tinghu District,Yancheng City,provides a basis for developing a new comprehensive chronic disease prevention and control plan to address chronic disease prevention and management. 展开更多
关键词 Chronic diseases Non-communicable Social factors Monitoring report
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Influence of Artificial Cofferdam and Spartina alterniflora Expansion on Evolution of Suaeda salsa Marsh in Yancheng Coastal Wetland of East China 被引量:2
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作者 Shuang HAN Yan ZHEN +1 位作者 Yufeng LI Huabing ZHANG 《Asian Agricultural Research》 2018年第4期72-76,88,共6页
Suaeda salsa is an important local species in the intertidal beach of the Western Pacific coast. However,under the artificial cofferdam and Spartina alterniflora expansion,Suaeda marsh has degraded seriously. Therefor... Suaeda salsa is an important local species in the intertidal beach of the Western Pacific coast. However,under the artificial cofferdam and Spartina alterniflora expansion,Suaeda marsh has degraded seriously. Therefore,using Yancheng Nature Reserve as a case study area,taking ETM+images in 2000,2006 and 2011 as the basic data sources,we revealed the evolution characteristics of Salsa marsh which was impacted. The research results are as follows. From 2000 to 2011,Salsa marsh area in the artificial area tempestuously degraded,decreasing by 87. 158%,more than 22% than those in the natural area. The landscape was fragmentized. Landscape polymerization degree index dropped from 95. 780 to 65. 455,more than 16% than those in the natural area. The mean patch area fell down to 21. 429 ha from 389. 333 ha,more than 11% that in the natural area. Compared to the steady change in natural conditions,the area was reduced by 118. 167 ha/a from 2000 to 2006,while during 2006-2011,it was only 51. 500 ha/a in artificial area. As for spatial change of landscape,in artificial area,the Salsa marsh centroid moved forward to the southeast with 666. 350 m,but that in natural area moved forward to the north with 1 042. 710 m from 2000 to 2006. From 2006 to 2011,the centroid moved forward to east and north respectively. Artificial cofferdam transformed the area into freshwater ecosystem,and meanwhile the freshwater was beneficial to Reed marsh. During 2000 to 2006,in the artificial area,539 ha Salsa marsh controlled by cofferdam transferred into reed marsh and aquaculture ponds,of which the transformation rate was nearly 4% higher than that in natural area. From 2006 to 2011,178 ha Salsa marsh was transferred into reed marsh,the transformation rate was 20% higher than that in natural area. With rapid spreading and strong competition of Spartina species,the coastal wetland has formed the pattern of " Salsa – Spartina marshes". From 2000 to 2006,in artificial area,15. 24% of Salsa marsh was transferred into Spartina marsh,of which the transformation rate was13% higher than that in natural area. And from 2006 to 2011,30. 07% Salsa marsh was replaced by the Spartina marsh in artificial area,the rate was almost 10% higher than that in the natural area. 展开更多
关键词 Artificial cofferdam Spartina alterniflora expansion Temporal and spatial evolution Suaeda salsa marsh Yancheng Nature Reserve
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Comparative Analysis on Activity Patterns of CG between Lianyungang and Yancheng
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作者 Fang Tian Jie Liu +1 位作者 Ye Ding Chunmei Zhang 《Meteorological and Environmental Research》 CAS 2013年第10期9-13,18,共6页
[Objective] The reseamh aimed to contrast and analyze CG activity rules in Lianyungang and Yancheng. [Method] By using lightning location data, basic characteristics of lightning activities in Lianyungang and Yancheng... [Objective] The reseamh aimed to contrast and analyze CG activity rules in Lianyungang and Yancheng. [Method] By using lightning location data, basic characteristics of lightning activities in Lianyungang and Yancheng both located at the eastem coast of Jiangsu were analyzed and contrasted. [Result] CG characteristics in Uanyungang and Yancheng were same, and negative CG was dominant. Monthly change activity rule of CG basically presented single-peak distribution, and peak value appeared in August. Monthly change of the lightning was drastic, and high- occurrence period was both in summer. Daily change trend of CG in the two sites was consistent. High-occurrence period of the lightning was in af- temoon and early morning, and occurrence frequency of the lightning in the morning was less. Spatial distribution of CG in Lianyungang and Yancheng was very uneven. Lightning activity in Lianyungang mainly concentrated in northwest and southeast areas of Donghai County and western area of Guannan County. Especially in Donghai County, it was the area where lightning strike density was the maximum. Lightning strike activity in Yanchang was more concentrated, and mainly concentrated in the west, namely near Jiangying Town and Louwang Town. Distribution characteris- tics of CG intensities in the two sites were same. Waveform changes of the positive CG in the two sites were slower than that of the negative CG, and current intensity concentrated from + 20 to ~ 50 kA. [ Conclusion ] By contrasting and analyzing lightning activity rules in Lianyungang and Yanchang, we could share and complement data in the two cities better, and serve for routine lightning prevention and early-warning better. 展开更多
关键词 CG Activity rule Comparative analysis Lianyungang Yancheng China
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A Study on the Development of Cultural Tourism Industry in Yancheng
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作者 ZHANG Cui-ai 《Journal of Literature and Art Studies》 2018年第11期1604-1609,共6页
Culture is an essential condition for the rapid and healthy development of the tourism industry.However,tourism provides a platform for cultural exchange and communication,injecting a strong impetus to the development... Culture is an essential condition for the rapid and healthy development of the tourism industry.However,tourism provides a platform for cultural exchange and communication,injecting a strong impetus to the development of the cultural industry.Under the background of the era that both culture and tourism industries have become national strategies,how to promote and realize the combination and interaction of culture and tourism industry is a practical problem that needs to be solved urgently.Based on taking Yancheng salt culture and seashore wetland ecological culture as the case analysis,this article hackles the integration advantages of Yancheng and tries to find out the deficiencies.On the basis of the evaluation and analysis between culture and the differences in the comprehensive development level of tourism industry,this paper discusses the characteristics and mechanism of the combination of culture and tourism industry,proposes a coordinated development pattern of culture and tourism industry,and on this basis provides the corresponding strategies and suggestions of this pattern in Yancheng. 展开更多
关键词 Yancheng CULTURE TOURISM INDUSTRY DEVELOPMENT
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Comparison of Carbon, Nitrogen, and Sulfur in Coastal Wetlands Dominated by Native and Invasive Plants in the Yancheng National Nature Reserve, China 被引量:6
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作者 WAN Siang LIU Xingtu +1 位作者 MOU Xiaojie ZHAO Yongqiang 《Chinese Geographical Science》 SCIE CSCD 2020年第2期202-216,共15页
The rapid invasion of the plant Spartina alterniflora in coastal wetland areas can threaten the capacity of their soils to store carbon(C),nitrogen(N),and sulfur(S).In this study,we investigated the spatial and tempor... The rapid invasion of the plant Spartina alterniflora in coastal wetland areas can threaten the capacity of their soils to store carbon(C),nitrogen(N),and sulfur(S).In this study,we investigated the spatial and temporal distribution patterns of C,N and S of both soil and(native and invasive)plants in four typical coastal wetlands in the core area of the Yancheng National Nature Reserve,China.The results show that the invasive S.alterniflora greatly influenced soil properties and increased soil C,N and S storage capacity:the stock(mean±standard error)of soil organic carbon(SOC,(3.56±0.36)kg/m^3),total nitrogen(TN,(0.43±0.02)kg/m^3),and total sulfur(TS,(0.69±0.11)kg/m^3)in the S.alterniflora marsh exceeded those in the adjacent bare mudflat,Suaeda salsa marsh,and Phragmites australis marsh.Because of its greater biomass,plant C((1193.7±133.6)g/m^2),N((18.8±2.4)g/m^2),and S((9.4±1.5)g/m^2)storage of S.alterniflora was also larger than those of co-occurring native plants.More biogenic elements circulated in the soil-plant system of the S.alterniflora marsh,and their spatial and temporal distribution patterns were also changed by the S.alterniflora invasion.Soil properties changed by S.alterniflora’s invasion thereby indirectly affected the accumulation of soil C,N and S in this wetland ecosystem.The SOC,TN,and TS contents were positively correlated with soil electrical conductivity and moisture,but negatively correlated with the pH and bulk density of soil.Together,these results indicate that S.alterniflora invasion altered ecosystem processes,resulted in changes in net primary production and litter decomposition,and increased the soil C,N and S storage capacity in the invaded ecosystems in comparison to those with native tallgrass communities in the coastal wetlands of East China. 展开更多
关键词 coastal WETLAND plant invasion SPARTINA alterniflora SOIL CARBON SOIL NITROGEN SOIL SULFUR
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Expansion and Management Implications of Invasive Alien Spartina alterniflora in Yancheng Salt Marshes, China 被引量:1
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作者 Chunyue Liu Hongxing Jiang +4 位作者 Shuqing Zhang Chunrong Li Xin Pan Jun Lu Yunqiu Hou 《Open Journal of Ecology》 2016年第3期113-128,共16页
Improved understanding of the spatial dynamics of invasive plant species is critical for effective land management and control of future invasion. The Yancheng National Nature Reserve (YNNR), an internationally import... Improved understanding of the spatial dynamics of invasive plant species is critical for effective land management and control of future invasion. The Yancheng National Nature Reserve (YNNR), an internationally important wetland, has the largest distribution of alien Spartina alterniflora in China. This alien plant was intentionally introduced for erosion prevention and dike protection in China. However, it became an aggressive competitor with native salt marsh plants in the coastal regions in China. High resolution imagery, SPOT-5, was used to map plant communities including invasive species in the south core zone of YNNR with the natural ecosystem of salt marshes in 2003, 2005 and 2008. The fuzzy set assessment method significantly improved the classification accuracies over the conventional error matrix, i.e., from 73.8%, 73.5% and 81.4% to 91.5%, 91.6% and 93.4% in 2003, 2005 and 2008, respectively. It shows a great potential for mapping invasive plant species. Phragmites australis and S. alterniflora were the most accurately mapped classes, and sparse and dense Suaeda glauca were the least accurately mapped. From 2003 to 2008, S. alterniflora increased 28.8% from 1664.1 to 2142.6 ha in area size, and more than 2.5 times from 742 to 2608 patches. The highest increase in patch number occurred within the interval between 2001 and 3000 m from the eastern baseline. This increase was dominated by small patches with area less than 200 m<sup>2</sup>. During the study period, the mean spread width was 405 ± 80.7 m in the original large patch of area over 200 ha. The eastward/seaward spread was distinctively larger than the westward/landward. The results enhance the understanding of alien plant’s invasion patterns and help improve conservation efforts. 展开更多
关键词 Spartina alterniflora SPOT-5 Remote Sensing Fuzzy Set Assessment Expansion Characteristics Management Implications
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A Study on the Integration of Culture Industry and Tourism Industry--A Case Study of Yancheng City in Jiangsu Province
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作者 Gong Yan 《学术界》 CSSCI 北大核心 2015年第4期286-292,共7页
On the basis of the domestic and foreign research results,combined with the reality of Yancheng,this paper puts forward that spatial layout is the key,the development of tourist product is the crux,the brand image is ... On the basis of the domestic and foreign research results,combined with the reality of Yancheng,this paper puts forward that spatial layout is the key,the development of tourist product is the crux,the brand image is the core,and regional cooperation is the main way of development. 展开更多
关键词 盐城市 旅游产业 文化产业 江苏省 整合 研究成果 空间布局 旅游产品
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A 150-year Isotopic Record of Lead Deposition in Yancheng Coastal Wetland,China
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作者 BAO Kunshan SHEN Ji +1 位作者 QUAN Guixiang LIU Fugang 《Chinese Geographical Science》 SCIE CSCD 2016年第6期755-769,共15页
Radioactive markers are useful in dating lead (Pb) deposition patterns from industrialization in sedimentary archives. As a well-known natural reserve in the world, Yancheng coastal wetland in Jiangsu Province is on... Radioactive markers are useful in dating lead (Pb) deposition patterns from industrialization in sedimentary archives. As a well-known natural reserve in the world, Yancheng coastal wetland in Jiangsu Province is one of areas most sensitive to global sea level change and is located in the most developed and polluted region of China. Two cores were collected in Yancheng wetland in October 2013 and dated using 210pb and 137Cs radiometric techniques. Sediments in both cores were sectioned into depth bands and examined systematically for dry bulk density, water content, magnetic susceptibility and grain-size. Multiple elements including Pb were also measured using inductively coupled plasma systems. Unsupported 21~Pb activities decreased with depth in both of the two cores, and 21~pb chronologies were established (covering 150 years) using the constant rate of supply (CRS) model. The measured Pb contents ranged from 14.97 mg/kg to 29.40 mg/kg with average values of 17.17-22.79 mg/kg, and the Pb fluxes ranged from 41.70 mg/(m2·yr) to 172.70 mg/(m2·yr) with averages of 95.59-123.41 mg/(m2·yr). Temporal variations of Pb flux, enrichment factors and Pb isotopes show a gradual and continuous increase over time and clearly reflect increased emissions from anthropogenic activities in the region. The Pb isotopic compositions show that most of Pb deposition in Yancheng wetland is input from natural sources by water flows and has the same levels of Pb as in the surface sediment of the Yangtze River and the Pacific mineral aerosol. We also stress the anthropogenic Pb contribution in Yangcheng wetland sediment and the reason of our Pb isotopes not showing anthropogenic signature is likely the insta- bility of anthropogenic Pb in high Fe/Mn oxide conditions. Therefore, more attention should be paid to current local pollution problems, and society should take action to seek a balance between economic development and environmental protection. 展开更多
关键词 coastal wetland Pb deposition rate Pb isotope 210pb dating metal pollution
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A Study On the Value and Direction of Yancheng Sea Salt Culture in College Students’Ideological and Political Education
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作者 GU Ren-kai WANG Jing-lin +1 位作者 WANG Jun-wen HE Deng-yi 《Journal of Literature and Art Studies》 2018年第11期1576-1580,共5页
Sea Salt Culture is the crystallization of the wisdom of the ancestors and the retention of the history.With the passage of time and the innovation of salt making technology,the connotation of sea salt culture is unde... Sea Salt Culture is the crystallization of the wisdom of the ancestors and the retention of the history.With the passage of time and the innovation of salt making technology,the connotation of sea salt culture is undergoing changes.In the long process of cultural dissemination,sea salt culture permeates local university campuses and enlightens college students as well.This paper explores the profound connotation of sea salt culture in the new era,probes into the important influence of Sea Salt Culture on the ideological and political education of contemporary college students,and analyzes the practical direction for college students to inherit sea salt culture in the new period,so as to expand the breadth and width of sea salt culture. 展开更多
关键词 SEA SALT CULTURE students’ideas connotations VALUE direction
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Exploration of Nature Education Path for Teenagers:A Case Study of Yancheng Wetland Nature Education Based on the World Natural Heritage Site
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作者 Wenhui LI Xiejuan TANG +1 位作者 Hongyang LI Xingxing SUN 《Asian Agricultural Research》 2023年第10期40-44,共5页
Nature education is the trend of the current social development.By gradually improving the awareness of ecological civilization among the whole people,the achievements in ecological civilization are jointly built and ... Nature education is the trend of the current social development.By gradually improving the awareness of ecological civilization among the whole people,the achievements in ecological civilization are jointly built and shared by the whole people.Yancheng Yellow Sea Wetland is a characteristic natural resource and the name card of Yancheng City,and also an important part of the natural education of teenagers in Yancheng.As one of the main resources of nature education in Yancheng,the Yellow Sea Wetland World Natural Heritage resources play a more important role in the cultivation of youth ecological civilization values and legal awareness of environmental protection.Based on the protection and utilization of the Yellow Sea Wetland World Natural Heritage resources,this paper explores the methods and approaches of nature education for teenagers in Yancheng. 展开更多
关键词 Nature education Yellow sea wetland World natural heritage
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基于SBM-DEA模型的江苏省碳排放效率研究
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作者 朱凡凡 宋辉 冯欢 《国土与自然资源研究》 2025年第1期44-49,共6页
本文运用MaxDEA9软件,基于非期望产出的SBM-DEA模型和Malmquist指数法从静态和动态两个方面研究2010-2021年江苏省及其13个地级市的碳排放效率。结果表明,(1)江苏省的整体碳排放效率在2010-2021年间稳步增长,并且在2019年开始达到有效,... 本文运用MaxDEA9软件,基于非期望产出的SBM-DEA模型和Malmquist指数法从静态和动态两个方面研究2010-2021年江苏省及其13个地级市的碳排放效率。结果表明,(1)江苏省的整体碳排放效率在2010-2021年间稳步增长,并且在2019年开始达到有效,在空间上呈现苏北大于苏南大于苏中的不均匀分布格局。(2)江苏省碳排放效率的平均增长速度呈现苏北大于苏中大于苏南的趋势。(3)江苏省及其13个地级市技术变化指数变动对碳排放效率增长有关键作用,碳排放效率各期增长速度受到当期技术发展水平的制约。 展开更多
关键词 “双碳”目标 碳排放效率 SBM-DEA模型 资源配置
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软土地基上水利枢纽基础处理施工技术
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作者 陈高臣 《山西建筑》 2025年第2期195-198,共4页
对于水利枢纽工程而言,基础处理的科学性、合理性直接关系到工程的安全运行和经济效益。软土地基因其低承载力、高压缩性和流变特性,为水利枢纽工程的设计与施工带来诸多挑战,这些地质条件要求采用特定的工程技术以确保结构的稳定性和... 对于水利枢纽工程而言,基础处理的科学性、合理性直接关系到工程的安全运行和经济效益。软土地基因其低承载力、高压缩性和流变特性,为水利枢纽工程的设计与施工带来诸多挑战,这些地质条件要求采用特定的工程技术以确保结构的稳定性和功能的可靠性。从搅拌桩的布置与施工、混凝土的浇筑与固化过程以及施工后的质量控制与验收等方面阐述了软土地基上水利枢纽基础处理的施工技术,最后对地基加固成效进行了评估,确保加固措施达到预期效果。 展开更多
关键词 水利枢纽工程 软土地基 防渗屏障 HDPE膜
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基于CAN和REST物联网技术的智能矿山安全检测系统研发 被引量:2
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作者 夏利玲 孙翠玲 +1 位作者 张慧 黄春香 《金属矿山》 CAS 北大核心 2024年第3期215-220,共6页
针对矿井安全生产检测数据传输效率低下和共享性差的特点,综合考虑开发成本与工作环境要求,基于CAN(Controller Area Network)和REST(Representational State Transfer)物联网技术提出了智能矿山安全检测方法,设计了矿山安全检测判别程... 针对矿井安全生产检测数据传输效率低下和共享性差的特点,综合考虑开发成本与工作环境要求,基于CAN(Controller Area Network)和REST(Representational State Transfer)物联网技术提出了智能矿山安全检测方法,设计了矿山安全检测判别程序,采用最大熵模型算法开发了数据信息预警程序。结合CAN总线技术,将多传感器信息进行有机融合并进行安全数据检测,将井下传感器设备相关信息经过判断分析后传输至总机。将所提安全检测方法进行了系统开发,并在淮北某矿进行了应用。结果表明:基于CAN和REST物联网技术的安全检测方法能够实现多点测量,并可随机增减检测设备,可实现数据实时传输和共享,有助于实现矿山安全实时检测。 展开更多
关键词 物联网 智能矿山 安全检测 最大熵模型 CAN总线
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MoS_(2)/ZnO异质结纳米材料降解亚甲基蓝的光催化性能研究 被引量:1
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作者 王进美 蒋守杰 +2 位作者 王春霞 王丽丽 高大伟 《西安工程大学学报》 CAS 2024年第1期24-30,共7页
为了提高ZnO的光转换效率,选用带隙较低的MoS_(2)形成异质结提高ZnO的光催化性能。通过水热法制备ZnO纳米棒,并进一步制备MoS_(2)/ZnO异质结构的纳米复合材料。通过扫描电镜(SEM)、X射线粉末衍射仪(XRD)、固体紫外可见漫反射测试仪(UV-V... 为了提高ZnO的光转换效率,选用带隙较低的MoS_(2)形成异质结提高ZnO的光催化性能。通过水热法制备ZnO纳米棒,并进一步制备MoS_(2)/ZnO异质结构的纳米复合材料。通过扫描电镜(SEM)、X射线粉末衍射仪(XRD)、固体紫外可见漫反射测试仪(UV-Vis)和紫外可见分光光度计(UV-245)等分析方法对样品的形貌、结构及光学性能等进行表征。结果表明,MoS_(2)/ZnO异质结复合材料呈棒状结构,并由于内建电场存在可有效增强光生载流子的分离效率,进而提高了可见光区的吸收,提高了光催化性能。在模拟太阳光(包含紫外波段)下,60 min时MoS_(2)-15/ZnO纳米复合材料对亚甲基蓝的降解率可达99%,比纯ZnO的降解率提高了10%。 展开更多
关键词 MoS_(2)/ZnO 光催化 异质结 亚甲基蓝 纳米复合材料
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石墨烯低温远红外辐射干燥稻谷干燥特性与品质研究 被引量:1
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作者 陈坤杰 王硕 +3 位作者 颜建春 ABDULAZIZ Nuhu Jibril 孙杰 於海明 《农业机械学报》 EI CAS CSCD 北大核心 2024年第4期346-351,384,共7页
为研究稻谷的石墨烯低温远红外干燥特性及其对稻谷干燥品质的影响,以辐射温度、排粮流量和除湿风量为影响因素,以整精米率和应力裂纹指数增值为评价指标,用自制的循环式石墨烯低温远红外干燥机进行稻谷干燥试验,通过BBD(Box-Behnken设计... 为研究稻谷的石墨烯低温远红外干燥特性及其对稻谷干燥品质的影响,以辐射温度、排粮流量和除湿风量为影响因素,以整精米率和应力裂纹指数增值为评价指标,用自制的循环式石墨烯低温远红外干燥机进行稻谷干燥试验,通过BBD(Box-Behnken设计)响应面法,分析了低温远红外干燥对稻谷干燥品质的影响以及工艺参数优化。结果表明:影响稻谷干燥特性和品质的最主要因素是辐射温度,其次是排粮流量和除湿风量。随着辐射温度的升高,稻谷干燥速率和应力裂纹指数增值逐步增大,整精米率则逐步降低。与同温度的热风干燥相比,石墨烯低温远红外干燥平均干燥速率和干燥品质均有显著提高。经优化后,稻谷最佳石墨烯低温远红外干燥工艺条件为:辐射温度43℃、排粮流量4 kg/min、除湿风量193 m^(3)/h,此时应力裂纹指数增值为9,整精米率为79.75%,稻谷干燥品质最佳。这说明利用石墨烯低温远红外干燥稻谷,可以明显提高干燥速率并改善稻谷干燥品质。 展开更多
关键词 稻谷 石墨烯 远红外辐射干燥 热传导 低温干燥
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数控压机伺服控制系统复合控制器I-ABC与PID优化 被引量:1
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作者 陈杰 泮进明 《机械设计与制造》 北大核心 2024年第1期200-203,共4页
为了提高数控压机伺服控制系统的控制精度,针对伺服控制系统运行控制过程构建数学模型,在人工蜂群算法基础上融入了云分析模型,之后采用改进人工蜂群算法(Improved Artificial Bee Colony,I-ABC)调节比例-积分-微分(Proportional Integr... 为了提高数控压机伺服控制系统的控制精度,针对伺服控制系统运行控制过程构建数学模型,在人工蜂群算法基础上融入了云分析模型,之后采用改进人工蜂群算法(Improved Artificial Bee Colony,I-ABC)调节比例-积分-微分(Proportional Integral Differential,PID)参数,建立了一种复合控制方法。研究结果表明:以I-ABC进行PID控制时,可以使幅度差降低到0.4%,相位差基本在-0.54°之内,系统加载精度也获得了明显提升,表现出了更优的跟踪性能。以I-ABC进行PID控制时,能够对多余力起到明显抑制作用,响应速度也获得明显提升,可以有效满足系统的准确控制要求。在系统内加入干扰信号,引入I-ABC实施PID调节可以减小系统超调量,还可以获得更短调节时间,使系统获得更强抗干扰性能。 展开更多
关键词 数控压机 伺服控制系统 改进人工蜂群算法 比例-积分-微分 复合控制器 抗干扰
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基于区块链技术的体育热点事件中的网络情绪治理 被引量:1
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作者 徐磊 任礼姝 黄东亚 《河北体育学院学报》 2024年第3期13-20,共8页
5G时代下体育网络情绪传播业态发生巨大变革,为其治理带来了新的挑战。当前,体育网络情绪传播主体和范围不断拓展、传播速度不断加快、传播不确性不断增加,使体育网络情绪治理难度不断提高。区块链技术凭借其去中心化、难以篡改、公开... 5G时代下体育网络情绪传播业态发生巨大变革,为其治理带来了新的挑战。当前,体育网络情绪传播主体和范围不断拓展、传播速度不断加快、传播不确性不断增加,使体育网络情绪治理难度不断提高。区块链技术凭借其去中心化、难以篡改、公开透明等优势,不仅可以有效提升体育网络情绪治理的精准性,而且可以有效提升治理效率。基于区块链技术从不同层面构建体育网络情绪治理机制,在宏观层面构建体育网络情绪信息联合治理平台,在中观层面建立基于大数据的体育网络情绪监测体系,在微观层面自媒体及其服务商实时跟踪处理体育网络情绪,以加强体育舆论引导,促进体育事业健康发展。 展开更多
关键词 5G 区块链 体育网络情绪 体育热点事件 舆情治理
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益生菌肠内营养支持联合经颅磁刺激在脑卒中后吞咽障碍康复中的应用 被引量:1
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作者 张玉珍 于小明 +1 位作者 徐海辰 马双双 《中国实用神经疾病杂志》 2024年第3期351-355,共5页
目的探讨益生菌肠内营养支持联合经颅磁刺激在脑卒中后吞咽障碍康复中的临床应用效果。方法选取2019-01—2022-12上海中医药大学附属第七人民医院收治的98例脑卒中吞咽障碍患者,分为观察组和对照组各49例。对照组实施经颅磁刺激疗法+营... 目的探讨益生菌肠内营养支持联合经颅磁刺激在脑卒中后吞咽障碍康复中的临床应用效果。方法选取2019-01—2022-12上海中医药大学附属第七人民医院收治的98例脑卒中吞咽障碍患者,分为观察组和对照组各49例。对照组实施经颅磁刺激疗法+营养支持干预,观察组辅助应用益生菌肠内营养干预。对比2组间疗效、吞咽功能、营养健康状况、免疫功能、肠道屏障功能。结果观察组临床疗效优于对照组(P<0.05)。治疗后,观察组洼田饮水试验(KWST)、功能性吞咽障碍量表(FDS)、EAT-10评分均低于对照组(P<0.05),血红蛋白(Hb)、白蛋白(ALB)、前白蛋白(PAB)水平均高于对照组(P<0.05),免疫球蛋白A(IgA)、免疫球蛋白G(IgG)、免疫球蛋白M(IgM)水平均高于对照组(P<0.05),ET、DAO、D-LA低于对照组(P<0.05)。结论益生菌肠内营养支持结合经颅磁刺激对脑卒中吞咽障碍有较好干预效果,能提高吞咽功能和营养水平,提升免疫水平,提高患者肠黏膜屏障功能。 展开更多
关键词 脑卒中 吞咽障碍 经颅磁刺激 益生菌 肠内营养 免疫功能 肠黏膜屏障功能
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施氮对田菁翻压还田滩涂盐渍土碳氮及细菌群落结构的影响 被引量:1
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作者 邢锦城 洪立洲 +5 位作者 朱小梅 刘冲 董静 王建红 韩建均 张振华 《土壤》 CAS CSCD 北大核心 2024年第1期82-89,共8页
为探讨不同施氮处理下田菁翻压还田对滩涂盐渍土的改良效果,通过田间小区试验研究了不同施氮水平下(CK、SN1、SN2、SN3、SN4对应的施氮量分别为0、90、135、180、225 kg/hm^(2))绿肥田菁还田对土壤碳氮、pH、水溶性盐和细菌群落结构的... 为探讨不同施氮处理下田菁翻压还田对滩涂盐渍土的改良效果,通过田间小区试验研究了不同施氮水平下(CK、SN1、SN2、SN3、SN4对应的施氮量分别为0、90、135、180、225 kg/hm^(2))绿肥田菁还田对土壤碳氮、pH、水溶性盐和细菌群落结构的影响。结果表明:SN3处理下田菁生物量和碳、氮累积量最高,分别为41 882、3 756和101.5 kg/hm^(2)。作绿肥翻压还田后,则以SN2处理土壤有机碳、全氮含量最高,分别为6.51 g/kg和0.637 g/kg。各施氮处理下,田菁翻压后土壤微生物生物量碳氮含量低于CK处理。随田菁翻压量的增加,土壤pH呈逐步下降趋势,而土壤水溶性盐总量则随施氮水平和翻压量的增加而上升,但较种植前明显降低。不同施氮处理田菁翻压后,土壤中具有一定有机降解功能的变形菌门、酸杆菌门、拟杆菌门、放线菌门和绿弯菌门等细菌类群占据主导地位,且相对丰度随田菁翻压量的增加呈一定变化趋势,但细菌群落结构变化不明显。土壤门水平优势菌群相对丰度与土壤碳氮含量、pH和水溶性盐总量等指标均呈一定的相关关系,其中以拟杆菌门、厚壁菌门、蓝菌门、绿弯菌门和迷踪菌门相对丰度与土壤有机碳和全氮含量的相关性较显著。综上所述,SN2处理下田菁翻压还田可显著提升滩涂土壤有机碳和全氮含量;不同施氮水平下生长的田菁翻压还田后,土壤水溶性盐总量均较种植前显著降低,主要优势菌群均有利于绿肥降解与土壤培肥,改善滩涂土壤微生态环境。 展开更多
关键词 氮肥用量 田菁 翻压还田 土壤理化性状 盐渍土
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