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基于新时代文旅融合的基地场景特色研学实证研究——以浙江省淳安县千岛湖为例

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林业调查规划 2024年第3期49卷 214-218页

作者：徐高福许梅琳张楠余阳春王志平徐邓幸淳安县新安江生态开发集团有限公司浙江淳安311700

浙江省淳安县千岛湖近年来开发了生态环保探索、农事研学活动、红色国防教育3大主题6个典型研学基地场景,对其自然条件、师资队伍、场所条件进行分析,研究其相应课程设计、研学路线,教育性、体验性路径和目标。结果表明,研学不仅是生态... 详细信息

浙江省淳安县千岛湖近年来开发了生态环保探索、农事研学活动、红色国防教育3大主题6个典型研学基地场景,对其自然条件、师资队伍、场所条件进行分析,研究其相应课程设计、研学路线,教育性、体验性路径和目标。结果表明,研学不仅是生态红利的新引擎,也是创新发展的催化剂,更是文化精神的感召力。提出要以新发展理念指引研学发展,深化研学内涵认知,多样化、多层次、多方面开展研学活动。

关键词：研学实证基地场景文旅融合千岛湖

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Application of Dynamic Linear Detecting Method in Data Processing of the Portable Blood Sugar Analyzer

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稀有金属材料与工程 2006年第A3期35卷 80-82页

作者： Xiaohao Wang Ran Liu Fei Tang yangchun yu Zhaoying Zhou State Key Laboratory of Precision Measurement Technology and Instruments Dept. of Precision Instruments Tsinghua Univ. Beijing 100084 China Dept. of Biomedical Engineering Tsinghua Univ. Beijing 100084 China

In this paper,a dynamic linear detecting method,that the non-linear coefficient NL% was led and the non-linearity of data were estimated continuously and dynamically and determined when NL% exceeded reference value (5%),was used for data processing and could solve the problem caused by the phenomenon of substrate depleting occurred following the redox reaction in portable blood sugar *** contrast to the conventional end-point method,the dynamic linear detecting method is based on multipoint data *** of measuring the calibration glucose solution with 8 various concentrations from 50 mg/dl to 400 mg/dl were carried out with the analyzer developed by our *** linear regression curve,whose correlation for the data was 0.9995 and the residual was 2.8080,were *** obtained correlation,residual, and the computation workload are all fit for the portable blood sugar analyzer.

关键词： data processing portable blood sugar analyzer dynamic linear detecting method

Particle size distributions, PM2.5 concentrations and water- soluble inorganic ions in different public indoor environments： a case study in Jinan, China

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Frontiers of Environmental Science & Engineering 2013年第1期7卷 55-65页

作者： Can DONG Lingxiao YANG Chao YAN Qi yuAN yangchun yu Wenxing WANG Environment Research Institute Shandong University Jinan 250100 China School of Environmental Science and Engineering Shandong University Jinan 250100 China Chinese Research Academy of Environmental Sciences Beijing 100012 China

In this study, we collected particles with aerodynamic diameter≤2.5 μm (PM ) from three different public indoor places (a supermarket, a commercial office, and a university dining hall) in Jinan, a medium-sized city located in northern China. Water-soluble inorganic ions of PM and particle size distributions were also measured. Both indoor and outdoor PM levels (102.3–143.8 μg·m and 160.2–301.3 μg·m , respectively) were substantially higher than the value recommended by the World Health Organization (25 μg·m ), and outdoor sources were found to be the major contributors to indoor pollutants. Diurnal particle number size distributions were different, while the maximum volume concentrations all appeared to be approximately 300 nm in the three indoor locations. Concentrations of indoor and outdoor PM were shown to exhibit the same variation trends for the supermarket and dining hall. For the office, PM concentrations during nighttime were observed to decrease sharply. Among others, , and were found to be the dominant water-soluble ions of both indoor and outdoor particles. Concentrations of in the supermarket and office during the daytime were observed to decrease sharply, which might be attributed to the fact that the indoor temperature was much higher than the outdoor temperature. In addition, domestic activities such as cleaning, water usage, cooking, and smoking also played roles in degraded indoor air quality. However, the results obtained here might be negatively impacted by the small number of samples and short sampling durations.

关键词： indoor air quality indoor/outdoor ratios size distributions particles with aerodynamic diameter≤2.5 μm (PM2.5) water-soluble ions

Characteristics,evolution,and regional differences of biomass burning particles in the Sichuan Basin,China

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Journal of Environmental Sciences 2020年第3期32卷 35-46页

作者： Jinqi Luo Junke Zhang Xiaojuan Huang Qin Liu Bin Luo Wei Zhang Zhihan Rao yangchun yu Faculty of Geosciences and Environmental Engineering Southwest Jiaotong UniversityChengdu 611756China Plateau Atmosphere and Environment Key Laboratory of Sichuan Province School of Atmospheric SciencesChengdu University of Information TechnologyChengdu 610225China Sichuan Environmental Monitoring Center Chengdu 610074China Shandong Academy for Environmental Planning Jinan 250101China

The Sichuan Basin has experienced serious air pollution from fine particulate matter(PM2.5) in the past few years with biomass burning has been identified as a major source of PM2.5 in this *** used single particle aerosol mass spectrometer to investigate the characteristics of biomass burning particles in three interacting cities representing different types of urban environment in the Sichuan Basin.A total of 739,794,279,610,and380,636 biomass burning particles were detected at Ya’an,Guang’an,and Chengdu,which represented 42%,69%,and 61%,respectively,of the total number of *** analyzed the chemical composition,transportation,and evolution of biomass burning *** contribution of K-elemental carbon and K-secondary inorganic particles was highest in Ya’an(36%) and Guang’an(47%),respectively,reflecting the important role of fresh biomass burning particles and long-distance transport in these two *** masses originating from different directions corresponded to different levels of PM2.5 and the contributions of polluted clusters increased significantly on polluted *** and secondary inorganic biomass burning particles increased pollution at Ya’an and Guang’an,respectively,but dominated different stages of pollution in Chengdu.K-nitrate particles were formed by photochemical reactions,whereas K-sulfate particles were formed by both photochemical and liquid-phase *** of the degree of particle aging showed that there were more fresh particles at Ya’an and more aged particles at Guang’*** results are useful in helping our understanding of the characteristics of biomass burning particles and evaluating their role in PM2.5 pollution in the Sichuan Basin.

关键词： Single particles Biomass burning particles Evolution Regional differences Sichuan basin

Size-resolved aerosol ionic composition and secondary formation at Mount Heng in South Central China

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Frontiers of Environmental Science & Engineering 2013年第6期7卷 815-826页

作者： Xinfeng WANG Wenxing WANG Likun XUE Xiaomei GAO Wei NIE yangchun yu Yang ZHOU Lingxiao YANG Qingzhu ZHANG Tao WANG Environment Research Institute Shandong University Jinan 250100 China Department of Civil and Environmental Engineering Hong Kong Polytechnic University Hong Kong China

To understand the size-resolved aerosol ionic composition and the factors influencing secondary aerosol formation in the upper boundary layer in South Central China, size-segregated aerosol samples were collected using a micro-orifice uniform deposit irnpactor （MOUDI） in spring 2009 at the summit of Mount Heng （1269 m asl）, followed by subsequent laboratory analyses of 13 inorganic and organic water-soluble ions. During non- dust-storm periods, the average PM1.8 concentration was 41.8 μg·m^-3, contributing to 55% of the PM10. Sulfates, nitrates, and ammonium, the dominant ions in the fine particles, amounted to 46.8% of the PM1.8. Compared with Mount Tai in the North China Plain, the concentrations of both fine and coarse particles and the ions contained therein were substantially lower. When the air masses from Southeast Asia prevailed, intensive biomass burning there led to elevated concentrations of sulfates, nitrates, ammonium, potassium, and chloride in the fine particles at Mount Heng. The air masses originating from the north Gobi brought heavy dust storms that resulted in the remarkable production of sulfates, ammonium, methane sulfonic acid, and oxalates in the coarse particles. Generally, the sulfates were primarily produced in the form of （NH4）2SO4 in the droplet mode via heterogeneous aqueous reactions. Only approximately one-third of the nitrates were distributed in the fine mode, and high humidity facilitated the secondary formation of fine nitrates. The heterogeneous formation of coarse nitrates and ammonium on dry alkaline dust surfaces was found to be less efficient than that on the coarse particles during non-dust-storm periods.

关键词： aerosol water-soluble ions size distributions,secondary formation dust storm Mount Heng

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重庆市农村多维贫困空间分异及影响因素分析

农业工程学报 2018年第22期34卷 235-245页

作者：蔡进禹洋春骆东奇邱继勤重庆工商大学旅游与国土资源学院重庆400067 重庆工商大学商务策划学院重庆400067 教育部人文社会科学重点研究基地重庆工商大学长江上游经济研究中心重庆400067

为了探索区域农村多维贫困的空间分异特征及影响因素,从而有针对性地实施扶贫开发策略,促进贫困地区农民脱贫增收。该文构建农村多维贫困测度指标体系,并在此基础上运用多边形综合图示法、莫兰指数和地理探测器模型等方法对重庆市农村... 详细信息

为了探索区域农村多维贫困的空间分异特征及影响因素,从而有针对性地实施扶贫开发策略,促进贫困地区农民脱贫增收。该文构建农村多维贫困测度指标体系,并在此基础上运用多边形综合图示法、莫兰指数和地理探测器模型等方法对重庆市农村多维贫困程度、空间格局及影响因素进行了研究。研究结果表明:重庆市农村多维贫困程度较深且区域差异较大;空间分异特征表现为高贫困水平的区县主要分布在渝东北和渝东南地区,低贫困水平的区县主要分布在主城和主城外围地区;空间关联格局特征表现为农村多维贫困在空间上呈现出显著的集聚效益,各区县主要以HH型和LL型正相关空间格局为主,HH型区县主要集中在渝东北地区,LL型区县主要集中在主城地区;农村多维贫困的空间分异主要受到地形坡度、到重庆市政府驻地距离、耕地质量等因素的影响,不同区域的主导因素有所差异。

关键词：农村耕地多维贫困空间格局重庆市

云南边疆少数民族地区村域多维贫困测度及空间分异研究

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农业工程学报 2019年第22期35卷 47-57页

作者：蔡进禹洋春骆东奇李涛重庆工商大学长江上游经济研究中心重庆400067 重庆工商大学旅游与国土资源学院重庆400067 重庆工商大学商务策划学院重庆400067 西南大学地理科学学院重庆400715

边疆少数民族地区的农村贫困治理一直是脱贫攻坚战略中最难啃的"硬骨头",揭示村域农村多维贫困时空分异规律,对于促进边疆少数民族地区农民脱贫增收具有重要意义。该文以云南省镇沅县为研究对象,在构建村域多维贫困测度指标体系的基础上... 详细信息

边疆少数民族地区的农村贫困治理一直是脱贫攻坚战略中最难啃的"硬骨头",揭示村域农村多维贫困时空分异规律,对于促进边疆少数民族地区农民脱贫增收具有重要意义。该文以云南省镇沅县为研究对象,在构建村域多维贫困测度指标体系的基础上,运用多维贫困测度模型、Moran指数、地理探测器模型等方法,对镇沅县109个村的多维贫困程度、空间格局以及主导因素进行研究。结果表明:镇沅县村域多维贫困程度较高,有55个村处于高贫困水平,空间格局表现为"东西高、南北次高、中心低"的结构特征,即贫困程度较高的村集中于东部的哀牢山区和西部、北部的无量山区,贫困程度较低的村主要集中于以县城为中心的恩乐镇、按板镇东部和古城镇北部地区;空间关联格局研究表明,镇沅县村域多维贫困空间上存在着显著的集聚特征,集聚的低值中心主要分布在中部恩乐镇和按板镇,集聚的高值中心主要分布在西部的振太镇;影响镇沅县村域多维贫困空间分异的主导因素包括人均耕地面积、25°坡度以上耕地面积比例、有无出村公交线路、到县政府驻地车程时间、农药使用强度、地质灾害强度、土地流转面积比例、贫困人口比例、年人均纯收入等。地方政府应该根据区域优势资源,制定合理且有针对性的扶贫策略。

关键词：村域 GIS 多维贫困空间分异少数民族地区镇沅县

秦巴山区不同类型贫困户易地搬迁意愿及影响因素研究——基于重庆418户农户调查

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中国农业资源与区划 2021年第11期42卷 121-132页

作者：蔡进邱继勤禹洋春李斌重庆工商大学公共管理学院重庆400067 重庆工商大学工商管理学院重庆400067

[目的]通过对重庆秦巴山区贫困农户的调研,分析秦巴山区不同类型贫困农户的易地扶贫搬迁意愿及影响因素,找出影响贫困农户搬迁的关键因子,为助推脱贫攻坚提供科学决策依据。[方法]文章运用二元Logistic回归模型,选取23个指标构建影响因... 详细信息

[目的]通过对重庆秦巴山区贫困农户的调研,分析秦巴山区不同类型贫困农户的易地扶贫搬迁意愿及影响因素,找出影响贫困农户搬迁的关键因子,为助推脱贫攻坚提供科学决策依据。[方法]文章运用二元Logistic回归模型,选取23个指标构建影响因素评价指标体系,并运用主成分分析法提取13个主要因子,分析主要因子对不同类型贫困农户的易地搬迁意愿影响因素。[结果]贫困农户搬迁意愿较强,但不同类型贫困户的搬迁意愿具有明显差异,低保兜底型贫困户>非农型贫困户>兼业型贫困户>务农型贫困户;在影响因素方面,家庭人口数量、医疗教育负担、住房结构、搬迁政策认知情况是影响贫困农户搬迁意愿的共同因素;人均耕地面积、家庭年人均纯收入、耕作半径、耕地是否流转是务农型贫困户的差异性因素,年龄、非农劳动力比重、距离村干道距离是非农型贫困户的差异性因素,家庭年人均纯收入、耕地是否流转以及住房结构是兼业型贫困户的差异性因素,人均耕地面积、人均住房面积和搬迁方式满意情况是低保兜底型贫困户的差异性因素。[结论]不同类型贫困农户易地搬迁意愿及影响因素具有显著差异,政府应该在充分尊重农户意愿的基础上推进易地扶贫搬迁工作,并构建一套长效稳定增收机制。

关键词：易地搬迁贫困户影响因素秦巴山区

适宜运动与过度训练调控肠道功能和肠-脑轴的作用机制

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上海体育大学学报 2024年第3期48卷 26-35,48页

作者：余锋贾芳芳徐帅汪君民王阳春淮阴师范学院体育学院江苏淮安223300 河南大学中原武术文化研究院河南开封475001

对运动介导肠道与大脑联络的相关文献进行综述,分析适宜运动与过度训练对肠道功能和肠-脑轴之间神经传导及生物信号分子的影响,以揭示其作用机制。发现:肠道与大脑之间关系密切,肠-脑轴之间的双向神经联系和相关生物信号分子是实现肠道... 详细信息

对运动介导肠道与大脑联络的相关文献进行综述,分析适宜运动与过度训练对肠道功能和肠-脑轴之间神经传导及生物信号分子的影响,以揭示其作用机制。发现:肠道与大脑之间关系密切,肠-脑轴之间的双向神经联系和相关生物信号分子是实现肠道与大脑之间对话的媒介。运动可通过调控肠道与大脑之间的神经联系和相关生物分子影响肠-脑轴,介导肠道与大脑的健康及神经、精神疾病的转归。肠道微生物是实现肠-脑轴之间信息沟通的重要参与者,运动对肠道功能与肠-脑轴的调节可通过调控肠道微生态,及其介导的神经传导途径和生物信号分子的变化发挥终端效应,进而影响高级神经功能。不同强度的运动对肠道微生态及肠-脑轴的调节效应差异颇大,适宜运动和过度训练引起的干预结果截然不同。

关键词：适宜运动过度训练肠道功能肠-脑轴

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