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排序方式: 共有1309条查询结果,搜索用时 31 毫秒
31.
巷道快速掘进技术是一项系统工程。为了实现矿井高产高效,必须以巷道快速掘进技术为前提和保障。本文以贵州省为例,探讨了巷道快速掘进技术的研究现状及影响因素。针对贵州某矿突出综合检测指标经常超限、掘进速度慢等问题,采用了高压水射流割缝与瓦斯抽放边抽边掘相结合技术。研究表明:该项技术能有效削弱煤层突出危险性,大幅度提高瓦斯抽放量且巷道掘进速度提高了2~3倍。同时根据贵州省的本土情况,提出了针对性地建议和措施,能为巷道快速掘进技术的推广与应用提供一定的指导。  相似文献   
32.
Since the end of the nineteenth century, the discourse between positivism and phenomenology has dominated the development of social science research methods. The argument is reflected in current tourism research and some scholars doubt the validity of positivism. Here opposing views as expressed in two recent Chinese publications are examined. By analyzing the two views and their methodology, the characteristics and limitations of both positivism and phenomenology can be highlighted. Both positivism and phenomenological methods have their own advantages and disadvantages, and an integration of the two types of research methods is most commonly used. In some specific research methods positivistic and phenomenological methods can be combined to attain more scientific knowledge. The paper also examines ‘technical rationality’, a philosophy which has been criticized by many for excessively focusing on the tool itself and so ignoring the research object and the purpose of the study. Yet although technical rationality does derive from positivism the former cannot simply be equal to the latter. It is suggested that the improvement of the scientific quality of tourism research is still the primary need for the development of the tourism discipline at present. It is not possible for tourism research to become a discipline purely through inclusion in specialized courses or existing subject content. Tourism research must become more scientific before it becomes a discipline.  相似文献   
33.
Port research is not a new field of interest for human geographers, evidenced by numerous conceptual models and empirical cases of port evolution and development in the literature. However, several critical questions remain unanswered, notably the exact position of port geography as a subdiscipline within human geography in the past, present and future. Based on a pluralistic approach, the paper analyzes the changing waves and development of port geography as a sub-discipline of human geography, with a special focus on whether port geography has experienced a paradigm shift and, if so, when, why, and how. Also, through analyzing the major terrains of port geography research from the macro perspective, it brings a new lease of life to port geography in this rapidly changing world.  相似文献   
34.
曹勇 《重庆与世界》2014,31(10):77-79
党代表驻班联系制度是重庆文理学院旅游学院创新高校二级学院党建工作、服务学生成长成才的重要举措。该制度紧紧"把握一个定位,落实两项举措,坚持三个结合,实施四位一体,健全五个机制",体现了以学生为本和为民务实清廉的要求,收到了比较令人满意的效果。  相似文献   
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伴随着互联网络的发展以及经济全球化的进程,电子商务近年来发展极为迅猛,在为人类社会带来深刻变革的同时,也对各国税收制度带来极大挑战。本文探讨了电子商务的各种特征,分析了电子商务对税收的影响因素,并结合国外知名公司的真实案例,研究了国外针对电子商务的各种税收政策。希望对我国制定符合国情的电子商务税收制度方面提供参考和借鉴。  相似文献   
37.
Stakeholder involvement in research processes is widely seen as essential to enhance the applicability of research. A common conclusion in the extensive body of literature on participatory and transdisciplinary research is the importance of the institutional context for understanding the dynamics and effectiveness of participatory projects. The role of institutional context has become increasingly important in view of large international research projects implementing shared participatory methodologies across countries (for example within Horizon 2020 and within CGIAR programmes), which each have different institutional contexts. Despite the generally accepted importance of the institutional context for understanding the unfolding of participatory and transdisciplinary research projects, surprisingly little research has actually looked into its role in greater detail. This paper aims to fill this gap in the literature by studying how a set of participatory principles and methods in a European project on integrated pest management (denoted as co-innovation in the project under study) was applied by researchers and advisers operating in a single international research project under the institutional conditions of four countries. The principal finding of this study is that, although constraints and enablers of participatory research at the personal level (e.g. researcher identity) were similar across the studied countries, research organisation- and community-based constraints and enablers differed, as well as those at the level of the overall innovation system. The institutions at different levels interact and create country-specific histories and path-dependencies, which lead to different degrees of propensity and preparedness, and hence different starting positions for participatory approaches. Consequently, when participatory research methods and approaches are applied in different contexts following a one-size-fits-all approach they may be less effective if not translated to institutional conditions at different levels. The study suggests that large international participatory research projects make provision in their design for careful selection of project team individuals, the composition of teams, and pay attention to the room for manoeuvre that the project, institute and national contexts provide for participatory research. To support the adjustment of participatory approaches to local institutional conditions, large international projects would benefit from fostering learning spaces that enable reflection on translation to local contexts and are capable of connecting to a wider network of decision makers and influencers that can facilitate institutional change in organisations and innovation systems.  相似文献   
38.
文章以目前会计界公认的5份顶尖国际学术期刊2000年至2009年所刊载的人力资源会计的53篇文章作为研究对象,对国外人力资源会计学术界的研究现状进行分析,反映进入21世纪以来国外人力资源会计研究的演进特征与变化,进而探讨国外人力资源会计研究的学术倾向.  相似文献   
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本文是从城市规划的角度,来研究城市密集建设区内的绿色空间网络规划所涉及的相关理论基础和实践中的规划布局要点.在理论上认为连接性、服务覆盖面和多功能复合性是规划布局的要素,并认为景观生态学的景观安全格局和网络效应原理可以用来指导规划布局.在重庆市主城区的实践探索中,提出了体现“梳理——评价——辨析——成果”思路的工作程序...  相似文献   
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