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The Impact of the Cognition of Landscape Experience on Tourist Environmental Conservation Behaviors 被引量:4
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作者 ZHANG Yu-ling ZHANG Jie +4 位作者 ZHANG Hong-Lei CHENG Shao-wen GUO Yong-rui MA Jin-hai SUN Jing-rong 《Journal of Mountain Science》 SCIE CSCD 2015年第2期501-517,共17页
This article explores the relationship between the tourist's cognition of the landscape experience and the environmental conservation efforts at three distinct tourist sites in mountains of southwestern China. A t... This article explores the relationship between the tourist's cognition of the landscape experience and the environmental conservation efforts at three distinct tourist sites in mountains of southwestern China. A total of 1500 on-site questionnaire surveys were distributed and 1142 valid questionnaires were used for statistical analysis. Results from multi-group path analysis showed that both cognition of the cultural landscape experience and cognition of the natural landscape experience had positive impacts on environmental conservation behaviors and behavior intentions of tourists. Results from comparative analysis among the three tourist sites indicated that cognition of the cultural landscape experience had a stronger power to predict senior environmental conservation behaviors and behavior intentions than cognition of the natural landscape experience, whereas cognition of the natural landscape experience had more power to predict general environmental conservation behaviors and behavior intentions than cognition of the cultural landscape experience. Furthermore, our findings benefit environmental management and sustainabilityat tourist sites. 展开更多
关键词 Landscape experience Tourist behaviors environmental conservation COGNITION EMOTION
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A Brief Talk on Environmental Experience Graphic Design in the Construction of Characteristic Tourism From Signage Design
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作者 ZHONG Cheng 《Psychology Research》 2022年第6期340-346,共7页
With the continuous development of the national economy and the improvement of the design industry,the wayfinding system has gradually been accepted and valued by the public,and the research on the wayfinding system o... With the continuous development of the national economy and the improvement of the design industry,the wayfinding system has gradually been accepted and valued by the public,and the research on the wayfinding system of the public environment has become more and more in-depth.In recent years,the research on the wayfinding system has begun to develop into the integration of human culture and cultural implantation in the environment,forming a new visual system design concept,Environment Graphic Design.With the deepening of research,environmental graphic design has once again developed and deepened,studying the detailed experience of people in the environment and presenting it in the form of graphic design.That is,Experience Graphic Design.This article will discuss the application of environmental graphic experience design in the construction of characteristic tourism from the perspective of signage design. 展开更多
关键词 INFRASTRUCTURE characteristic tourism HOMOGENIZATION environmental experience graphic design
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Impact of an official accountability audit on industrial structure adjustment:a case study of environmental regulation in China
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作者 Yu Xia 《Chinese Journal of Population,Resources and Environment》 2024年第2期167-175,共9页
As a unique environmental regulation in China,the official accountability audit was piloted in 2014.With a focus on prioritizing the ecological environment,officials in pilot districts have implemented economic constr... As a unique environmental regulation in China,the official accountability audit was piloted in 2014.With a focus on prioritizing the ecological environment,officials in pilot districts have implemented economic construction,adjusted industrial structures,and promoted coordinated development between the economy and environment.The effects of implementation have garnered widespread attention from society.However,there is limited research on the impact of an accountability audit on industrial structure adjustments.Using the“Accountability Audit of Officials for Natural Resource Assets(Trial)”released in 2015 as a quasi-natural experiment,this study collected panel data from 279 cities between 2013 and 2017.It then empirically analyzed the impact mechanism and effects of the accountability audit on industrial structure adjustment using the Propensity Score Matching and Difference-in-Differences model.The research findings indicate that the accountability audit directly impacted industrial structure adjustment,promoting the upgrading of the primary industry to the secondary industry and restricting the development of the tertiary industry.In addition,the audit is beneficial for enterprise entry,but not conducive to technological innovation,and has no significant impact on foreign direct investment.This conclusion fills a gap in the existing research and provides valuable insights for policymakers. 展开更多
关键词 Accountability audit Difference-in-differences model environmental regulation Industrial structure adjustment Quasi-natural experiment
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Effects of Perceived Teacher Support on Student Behavioral Engagement in the Blended Learning Environment:Learning Experience as a Mediator
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作者 Yanle Zhang Peipei Chen +1 位作者 Suo Jiang Junjian Gao 《Journal of Contemporary Educational Research》 2024年第5期297-316,共20页
Blended learning(BL)has been widely adopted to improve students’academic achievements in higher education.However,its success relies mainly on student engagement,which plays an essential role in active learning and p... Blended learning(BL)has been widely adopted to improve students’academic achievements in higher education.However,its success relies mainly on student engagement,which plays an essential role in active learning and provides a rich understanding of students’experiences.The study utilized three self-designed scales-the Teacher Support Scale,Student Engagement Scale,and Student Learning Experience Scale-to gauge and examine the impact and relationship between perceived teacher support,student behavioral engagement,and the intermediary role of learning experiences.A cohort of 899 college students undertaking the obligatory College English course through BL modes across five Chinese universities actively participated by completing a comprehensive questionnaire.The results showed significant correlations between perceived teacher support,learning experience,and behavioral engagement.Perceived teacher support significantly predicted students’behavioral engagement,with socio-affective support exerting the most substantial predictive effects.All predictive effects were partially mediated by learning experience(learning mode,online resources,overall LMS-based learning,interaction with their instructor and peers,and learning outcome).The influence of perceived teacher support on behavioral engagement differed between students who reported the most positive(vs.negative)learning experiences.Suggestions for further research are offered for consideration. 展开更多
关键词 Student engagement Teacher support Learning experience Blended learning environment
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Effect of flow rate on environmental variables and phytoplankton dynamics:results from field enclosures 被引量:3
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作者 张海平 陈瑞弘 +1 位作者 李飞鹏 陈玲 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2015年第2期430-438,共9页
To investigate the effects of flow rate on phytoplankton dynamics and related environment variables,a set of enclosure experiments with different fl ow rates were conducted in an artificial lake. We monitored nutrient... To investigate the effects of flow rate on phytoplankton dynamics and related environment variables,a set of enclosure experiments with different fl ow rates were conducted in an artificial lake. We monitored nutrients,temperature,dissolved oxygen,p H,conductivity,turbidity,chlorophyll-a and phytoplankton levels. The lower biomass in all flowing enclosures showed that flow rate significantly inhibited the growth of phytoplankton. A critical flow rate occurred near 0.06 m/s,which was the lowest relative inhibitory rate. Changes in flow conditions affected algal competition for light,resulting in a dramatic shift in phytoplankton composition,from blue-green algae in still waters to green algae in flowing conditions. These findings indicate that critical flow rate can be useful in developing methods to reduce algal bloom occurrence. However,flow rate significantly enhanced the inter-relationships among environmental variables,in particular by inducing higher water turbidity and vegetative reproduction of periphyton( Spirogyra). These changes were accompanied by a decrease in underwater light intensity,which consequently inhibited the photosynthetic intensity of phytoplankton. These results warn that a universal critical flow rate might not exist,because the effect of flow rate on phytoplankton is interlinked with many other environmental variables. 展开更多
关键词 environmental variables PHYTOPLANKTON enclosure experiment flow rate
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Registered Nurses’ Experiences with Clinical Teaching Environment in Malawi 被引量:7
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作者 Thokozani Bvumbwe Atupele Malema Mep Chipeta 《Open Journal of Nursing》 2015年第10期927-934,共8页
Clinical practice remains an integral part of nursing curriculum because clinical practice provides students with an opportunity to achieve professional competence. Creating a conducive learning environment for studen... Clinical practice remains an integral part of nursing curriculum because clinical practice provides students with an opportunity to achieve professional competence. Creating a conducive learning environment for students is responsibility of academic staff, clinical nurses and students alike. However, studies in Malawi have reported poor clinical learning environment for students. This study therefore aimed at exploring nurses’ experiences of clinical teaching environment in Malawi. The study used a qualitative research design utilizing a descriptive phenomenological approach. Participants were randomly identified from teaching hospitals across Malawi by nursing managers to attend a six week clinical preceptorship training at one University nursing college. Immediately before commencement of the training, participants were invited to voluntarily participate in a focus group discussion pertaining to their experiences with clinical environment. We conducted focus group discussions with 9 trainees in 2013 and 12 trainees in 2014 training cohorts. Findings reveal that nurses meet a number of challenges in teaching students in the clinical area. Four themes emerged from the study, namely, inadequate faculty support, poor clinical teaching environment, poor competence among nurses and unsupportive working conditions. Nurses require support from academic staff and their managers to ensure a conducive clinical teaching environment. 展开更多
关键词 Preceptors’ experiences CLINICAL LEARNING ENVIRONMENT CLINICAL TEACHING
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Development and Research of Forest Tourism from the Perspective of Forest Experience 被引量:1
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作者 YANG Daxin JIA Ziwei +1 位作者 WANG Zhexin GONG Hede 《Journal of Landscape Research》 2016年第4期116-118,共3页
Forest experience is an important scale for measuring the development degree of forest tourism,and also an indispensable part of forest tounsm.Domestic theoretical and practical researches on forest experience and for... Forest experience is an important scale for measuring the development degree of forest tourism,and also an indispensable part of forest tounsm.Domestic theoretical and practical researches on forest experience and forest tourism have been less reported,forest tounsm development and research from the perspective of forest experience have remained in the exploration stage,and researches on natural education and forest culture have also been just initiated.This paper explored problems of current forest tourism development from three perspectives of forest experience,i.e.environmental index,experience content and facility service.By applying scientific development and marketing methods,and combining with traditional health-care culture,forest tourism development spaces could be expanded.Finally,the paper proposed to establish forest ecological monitoring system and enrich forest experience projects to provide visitors forest tounsm expenence with high additional value and satisfaction degree. 展开更多
关键词 environmental index Forest experience Forest scenic area Forest tourism
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Place Experience of Landscape Sculptures
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作者 TANG Yan 《Journal of Landscape Research》 2015年第5期52-53,56,共3页
Human beings rely on natural instinct to feel the world from the beginning of life, the experience in the spatial place reveals the essential point contacting man and environment, also sublimates the relationship betw... Human beings rely on natural instinct to feel the world from the beginning of life, the experience in the spatial place reveals the essential point contacting man and environment, also sublimates the relationship between man and environment. To deepen the understanding of the experience in the spatial place, we shift the origin of environmental landscape design from "design environment" to "design experience". The essence of experience is to arouse perception, such as senses, emotions, spirits, thinking, action to participate, among which "form, space, quality" as the carrier of landscape sculpture's place spirit and experience co-form a complete spatial place imagery of landscape sculpture. Place experience makes people able to experience a more detailed and richer world, these construction activities bring innovation consciousness with inner vitality, and detail the means of man observing the world while seeking a pluralistic world. 展开更多
关键词 Landscape sculpture Place experience ENVIRONMENT PERCEPTION
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Environmental regulation and firms'performance:a quasi-natural experiment from China
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作者 Juan Li Min Zhao Yien Yang 《Chinese Journal of Population,Resources and Environment》 2019年第3期278-294,共17页
This paper investigates whether environmental regulation affects firm's performance including productivity,wage and employment using firm-level data in 1996-2007.The identification uses Two Control Zones(TCZ)polic... This paper investigates whether environmental regulation affects firm's performance including productivity,wage and employment using firm-level data in 1996-2007.The identification uses Two Control Zones(TCZ)policy implemented by the Chinese government in 1998,in which tougher environmental regulations were imposed in TCZ cities but not others.By difference-indifferences estimation,we find that tougher environmental regulation leads to larger increase on both total factor productivity and wage,and firms tend to employ fewer workers under pressure of environmental protection.Heterogeneous tests show that the impacts are better for nonpollution intensive firms,non-exporters and SOEs.Finally,we find that R&D input and exiting firms among industry are the driving forces for enhancing TFP and increasing wage and unemployment. 展开更多
关键词 environmental regulation firm’s performance Two Control Zones(TCZ) quasi-natural experiment Chinese firm-level data
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Environmental Impacts of Farm Waste Treatment Methods and Perspectives of Valorization by Composting: The Case of the Farm “Sociétéde Provenderies du Cameroun (SPC)” of Foumbot
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作者 Alvine Larissa Meyabeme Elono Alida Londji Meli Henri Gabriel Tsila 《Journal of Geoscience and Environment Protection》 2022年第6期220-233,共14页
Waste recovery is an environmental, agronomic and economic asset. The farm “Société de Provenderies du Cameroun” (SPC) processes its wastes by incineration and landfill. During this study, environmental im... Waste recovery is an environmental, agronomic and economic asset. The farm “Société de Provenderies du Cameroun” (SPC) processes its wastes by incineration and landfill. During this study, environmental impacts of these two treatment methods were assessed in this farm and a composting experiment was also conducted. For the experiment, chicken carcasses and droppings mixed with wood shavings, straw, incineration ash, egg shells and cattle dung were distributed differently in four experimental composters C1, C2, C3 and C4 with the same starting weight. C1 consisted of the first three waste types, for C2, C3 and C4 a new waste was added in the order they are listed above. The results show that the major impacts associated with the incineration and landfilling of SPC waste are the degradation of the health of workers and surrounding populations, the occurrence of conflicts, and the pollution of the air, soil and groundwater of the site. As far as composting is concerned, the characteristics of three of the four composts obtained are usable as soil fertilisers. Indeed, at the end of the experiment, the pH of the four composters was basic (8), the temperature values were between 24&#176;C and 34&#176;C and the humidity values were between 37% and 41%. However, the last parameter, the C/N ratio, was not satisfactory for C1 (13.42), which eliminated it from mature and ready-to-use composts according to FAO standards. The C/N ratios of C2 (15.71), C3 (16.30), and C4 (18) composters were found to be good for mature and ready-to-use compost. 展开更多
关键词 Farm Wastes Treatment Methods environmental Impacts Composting Experiment
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Influences of Network Delay on Quality of Experience for Soft Objects in Networked Real-Time Game with Haptic Sense
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作者 Mya Sithu Yutaka Ishibashi +1 位作者 Pingguo Huang Norishige Fukushima 《International Journal of Communications, Network and System Sciences》 2015年第11期440-445,共6页
In this paper, we investigate the influences of network delay on QoE (Quality of Experience) such as the operability of haptic interface device and the fairness between players for soft objects in a networked real-tim... In this paper, we investigate the influences of network delay on QoE (Quality of Experience) such as the operability of haptic interface device and the fairness between players for soft objects in a networked real-time game subjectively and objectively. We handle a networked balloon bursting game in which two players burst balloons (i.e., soft objects) in a 3D virtual space by using haptic interface devices, and the players compete for the number of burst balloons. As a result, we find that the operability depends on the network delay from the local terminal to the other terminal, and the fairness is mainly dependent on the difference in network delay between the players’ terminals. We confirm that there exists a trade-off relationship between the operability and the fairness. We also see that the contribution of the fairness is larger than that of the operability to the comprehensive quality (i.e., the weighted sum of the operability and fairness). Assessment results further show that the output timing of terminals should be adjusted to the terminal which has the latest output timing to maintain the fairness when the difference in network delay between the terminals is large. In this way, the comprehensive quality at each terminal can be maintained as high as possible. 展开更多
关键词 NETWORKED REAL-TIME GAME Virtual Environment Balloon BURSTING GAME HAPTIC Interface Devices Network Delay Quality of experience OPERABILITY Fairness
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偏好异质性、农户参与式方案创设与养殖废弃物资源化利用——来自养殖户种养结合的选择实验 被引量:4
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作者 江光辉 胡浩 《南京农业大学学报(社会科学版)》 CSSCI 北大核心 2024年第3期161-173,共13页
生态补偿政策构成的农业环境方案对于废弃物资源化利用具有激励作用,但现行补偿政策方案可能存在推广瓶颈,突破瓶颈的关键在于了解农户的政策选择偏好。以养殖废弃物肥料化还田为例,通过选择实验法构建了由4个政策属性组合而成的备选政... 生态补偿政策构成的农业环境方案对于废弃物资源化利用具有激励作用,但现行补偿政策方案可能存在推广瓶颈,突破瓶颈的关键在于了解农户的政策选择偏好。以养殖废弃物肥料化还田为例,通过选择实验法构建了由4个政策属性组合而成的备选政策情境,结合江苏省346户生猪养殖户实验数据,运用Mixed Logit模型检验了补偿政策的选择偏好及协同互补效应。结果表明:(1)养殖户对选择实验方案中的服务类、收入类和价格类补偿政策的偏好程度更高,而对于技术支持类补偿政策不具备明显偏好;(2)养殖户环保认知与风险特征是上述政策偏好异质性的重要来源,风险偏好型和环保认知水平高的养殖户对各类补偿政策方案的接受意愿更高;(3)技术支持、外包服务同收入类、价格类补偿政策之间呈现显著的互补性。根据“重视多元化补偿,强化正协同效应”原则,本文创设了针对养殖废弃物还田利用的推广方案,旨在优化和完善现行的生态补偿政策体系,打好相关政策措施的“组合拳”。 展开更多
关键词 养殖废弃物资源化利用 种养结合 生态补偿 偏好异质性 离散选择实验
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Reform and Practice of Immersive Teaching in Environmental Acoustics
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作者 Haitao Wang Xiangyang Zeng +2 位作者 Ye Lei Shuwei Ren Xiaoyan Zhang 《Journal of Contemporary Educational Research》 2021年第12期32-37,共6页
Environmental Acoustics is a professional course that educates students majoring in Acoustics.Affected by practical equipment and other factors,the teaching effect of knowledge points relevant to subjective auditory p... Environmental Acoustics is a professional course that educates students majoring in Acoustics.Affected by practical equipment and other factors,the teaching effect of knowledge points relevant to subjective auditory perception contained in the course is poor.Taking the course of Spatial Hearing and 3D Stereo as an example,this study develops a virtual simulation experiment system for the topic of subjective hearing perception in order to carry out the reform and practice of immersive teaching.Combined with the virtual simulation experiment project with high sense of presence,students are supported by the actual auditory perception effect in the whole learning process and have achieved good learning effect. 展开更多
关键词 environmental Acoustics Virtual simulation experiment Immersive teaching
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环保信用评价提高企业绿色全要素生产率了吗? 被引量:3
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作者 钟海燕 王江寒 李敏鑫 《审计与经济研究》 CSSCI 北大核心 2024年第2期96-106,共11页
环保信用评价是生态环境治理与经济绿色转型压力下的一种新型环境治理政策工具。以环保信用评价政策的实施作为一项准自然实验,选取2008—2019年沪深A股上市公司为研究对象,构建三重差分模型,考察了环保信用评价对企业绿色全要素生产率... 环保信用评价是生态环境治理与经济绿色转型压力下的一种新型环境治理政策工具。以环保信用评价政策的实施作为一项准自然实验,选取2008—2019年沪深A股上市公司为研究对象,构建三重差分模型,考察了环保信用评价对企业绿色全要素生产率的影响。研究发现:环保信用评价政策显著提高了企业绿色全要素生产率。影响机制分析表明,绿色技术创新和绿色资源获取对环保信用评价政策促进企业绿色全要素生产率提高发挥了中介效应。进一步研究发现,环保信用评价与企业绿色全要素生产率之间的正相关关系在政府监管环境严格的地区、市场竞争环境激烈的行业以及社会信任环境良好的地区更加明显。结论提供了环保信用评价政策经济后果的经验证据,丰富了企业绿色全要素生产率驱动因素的研究文献,对政府部门进一步推广环保信用评价政策、积极引导企业实施环境向善行为、助力实现经济绿色可持续发展等具有建设性作用。 展开更多
关键词 环保信用评价 企业绿色全要素生产率 绿色技术创新 绿色资源获取 准自然实验
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基于环境工程专业认证标准的《水污染控制工程实验》课程教学改革 被引量:1
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作者 李菊英 丁腾达 +1 位作者 韩京成 刘唐 《广东化工》 CAS 2024年第1期174-176,154,共4页
水污染控制工程实验是环境工程专业的一门核心实验课程,也是一个重要实践性环节。工程教育认证对水污染控制工程实验等高校实践类课程的教学改革以及学生处理复杂工程问题的创新性及综合素养的培养等均提出了更高的要求。本文结合深圳... 水污染控制工程实验是环境工程专业的一门核心实验课程,也是一个重要实践性环节。工程教育认证对水污染控制工程实验等高校实践类课程的教学改革以及学生处理复杂工程问题的创新性及综合素养的培养等均提出了更高的要求。本文结合深圳大学环境工程工程教育专业认证工作开展的背景下,介绍了深圳大学环境工程专业在《水污染控制工程实验》课程教学探索和相应改革措施。通过课程教学改革,支撑了符合中国工程教育专业认证标准的本专业毕业要求内涵观测点,优化了课程教学体系,提高了学生解决复杂环境工程问题等实践能力。 展开更多
关键词 环境工程 工程教育认证 课程改革 水污染控制工程实验 教学探索
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以“项目”为中心的环境科学综合性实验教学模式探索
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作者 管秀娟 陈平 +1 位作者 李中阳 余应新 《广东化工》 CAS 2024年第4期171-172,128,共3页
根据环境科学专业本科生环境监测、仪器分析和环境化学实验课程培养目标,文章阐述了以“项目”为中心的综合性实验教学模式的意义,并从实验教学的对象、方案设计和教学效果3个方面阐述了该教学模式的实施情况。该教学模式激发了学生对... 根据环境科学专业本科生环境监测、仪器分析和环境化学实验课程培养目标,文章阐述了以“项目”为中心的综合性实验教学模式的意义,并从实验教学的对象、方案设计和教学效果3个方面阐述了该教学模式的实施情况。该教学模式激发了学生对环境科学专业实验的学习自主性,强调知识整合而不是割裂,促进了学生将理论学习与实际项目结合,解决实际环境问题,提升了实验课程的教学效果。 展开更多
关键词 环境科学 实验教学 综合性实验 “新工科” 教学模式
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实验教学在研究生培养中的需求分析与改革探索
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作者 陈皓 周磊 +2 位作者 杨超 孙雅洁 付小花 《实验室科学》 2024年第4期82-86,共5页
实验教学是提升研究生实践能力和科研素养的重要途经。通过调查问卷方式对环境类专业研究生的仪器分析实验课程需求进行了调查,调查对象涉及多个相关专业背景人群。根据调查反馈信息,从课程重要性、环节分配、实验模块设置、课时优化、... 实验教学是提升研究生实践能力和科研素养的重要途经。通过调查问卷方式对环境类专业研究生的仪器分析实验课程需求进行了调查,调查对象涉及多个相关专业背景人群。根据调查反馈信息,从课程重要性、环节分配、实验模块设置、课时优化、考核机制等多个角度统计并归纳了环境类专业仪器分析实验课程在实际教学中的需求。并针对性地探讨了课程改革方向和可行措施,为进一步深化仪器分析实验课程教学改革奠定了牢固的基础。 展开更多
关键词 实验教学 仪器分析实验 环境类专业 研究生培养
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CEO绿色经历能否提升企业环境绩效?
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作者 孙慧 豆勇芳 张玲富 《生态经济》 北大核心 2024年第9期143-152,168,共11页
在环境污染愈发严重、环境保护目标愈发明确的背景下,企业作为污染排放的重要源头,实现环境绩效提升与可持续发展成为企业面临的重要问题。CEO是企业经营决策的主要执行人,CEO所具备的绿色经历是否以及如何对企业环境绩效产生影响?论文... 在环境污染愈发严重、环境保护目标愈发明确的背景下,企业作为污染排放的重要源头,实现环境绩效提升与可持续发展成为企业面临的重要问题。CEO是企业经营决策的主要执行人,CEO所具备的绿色经历是否以及如何对企业环境绩效产生影响?论文基于2011—2021年中国上市企业微观数据,实证检验了CEO绿色经历和企业环境绩效之间的关系。研究发现,企业雇佣具有绿色经历的CEO能够提升企业环境绩效,经稳健性检验后,结论依然成立。在非国有控股股东控制的企业、重污染型企业中,具有绿色经历的CEO对环境绩效的提升作用更显著。进一步研究发现,具有绿色经历的CEO能够降低企业面临的环境不确定性,提升环境绩效;同时,分析师关注、媒体关注和公众环境关注正向调节CEO绿色经历对企业环境绩效提升的作用。研究结果丰富了CEO与企业绩效的相关研究,将为企业合理利用人力资源,降低污染排放,实现绿色可持续发展提供一定理论与实践意义。 展开更多
关键词 CEO绿色经历 企业环境绩效 环境不确定性 外部关注
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用于特殊环境的薄膜应变计的制备与表征
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作者 张丛春 康志鹏 +1 位作者 雷鹏 闫博 《传感技术学报》 CAS CSCD 北大核心 2024年第4期589-596,共8页
使用磁控溅射制备了卡玛合金薄膜应变计,研究了退火温度对薄膜微观结构的影响,测试了薄膜的电学性能以及压阻响应特性,并进行了环境实验。结果表明,随着退火温度升高,薄膜的电阻率逐渐下降,电阻温度系数则逐渐升高,在室温下有最小的电... 使用磁控溅射制备了卡玛合金薄膜应变计,研究了退火温度对薄膜微观结构的影响,测试了薄膜的电学性能以及压阻响应特性,并进行了环境实验。结果表明,随着退火温度升高,薄膜的电阻率逐渐下降,电阻温度系数则逐渐升高,在室温下有最小的电阻温度系数(TCR),约为59.9×10^(-6)/℃,经过200℃退火处理的薄膜应变计的应变灵敏度系数(GF)为2.2,TCR为64.4×10^(-6)/℃。经历温湿循环、盐雾、霉菌试验后,薄膜的压阻特性变化不大,能耐受海洋特殊环境。 展开更多
关键词 磁控溅射 薄膜应变计 电阻温度系数 应变因子 环境实验
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法成令修:新《环保法》对债券定价的影响研究
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作者 王倩 边浩东 魏远国 《财经论丛》 CSSCI 北大核心 2024年第11期69-79,共11页
本文将环境规制效应延伸到债券市场,以新《环保法》的实施作为准自然实验,采用双重差分法考察环境规制对企业债券信用利差的影响。研究发现,新《环保法》的实施能够显著提高重污染企业债券信用利差。将债券信用利差分解为流动性利差和... 本文将环境规制效应延伸到债券市场,以新《环保法》的实施作为准自然实验,采用双重差分法考察环境规制对企业债券信用利差的影响。研究发现,新《环保法》的实施能够显著提高重污染企业债券信用利差。将债券信用利差分解为流动性利差和违约利差之后发现,新《环保法》的实施显著提高了债券违约利差,对流动性利差未产生显著影响。机制检验表明,新《环保法》的实施对债券信用利差的提升作用主要通过处罚效应、投资者情绪效应以及资源效应来实现。异质性分析发现,新《环保法》的实施对债券信用利差的作用会随着客户集中度的降低、社会关注度的提高以及企业积极改善自身环境绩效而减弱。本文的研究对评估新《环保法》的经济效果,推动政策进一步精准发力,实现经济绿色转型具有一定的参考意义。 展开更多
关键词 环境规制 新《环保法》 信用利差 准自然实验
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