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该文试图对我国幼儿艺术教育的现状和学前儿童艺术教育内容的相关理论进行分析,总结目前我国农村幼儿园艺术教育存在的问题,更准确地认识我国幼儿园艺术教育的实情,为我国幼儿园艺术教育研究提供更新的研究视野。构建科学合理、适合我国国情的学前儿童艺术教育课程体系,为建设更加完善、更有生命力的农村幼儿园艺术教育理论体系提供借鉴。 相似文献
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采用Norton模型对产品更新换代扩散趋势的研究——以中国互联网用户上网方式的更新换代为例 总被引：2，自引：0，他引：2
本文在Bass模型的基础上,详细介绍了产品更新换代扩散的Norton模型,并例举了通信产业的产品更新换代扩散的实例,中国互联网上网方式的更新换代的发展。模型参数的估算是影响模型准确性的一个重要方面,论文总结了前人的成果,采用遗传算法作为Norton模型的参数估计方法,并对中国互联网的上网方式,如拨号上网、ISDN(综合业务数字网)上网、宽带上网的扩散进行实证研究,模型得出另人满意的结果,并将结果与Bass模型进行了比较和讨论,得出结论,采用Norton模型研究产品更新换代扩散是一种更好的选择。最后,论文对中国移动通信网络发展提出展望。 相似文献
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The inability to touch products is a fundamental shortcoming in online shopping because humans typically use the sense of touch to evaluate the utilitarian product functionality and to obtain hedonic sensory enjoyment, which the instrumental and autotelic need for touch capture. This study of 900 consumers looks at the interplay between need for touch and imagination to study how imagination compensates for the lack of touch when consumers shop in a 360-virtual store. The study finds that while telepresence of a 360-virtual store improves consumer attitudes toward virtual shopping, the need for hedonic sensory enjoyment – autotelic need for touch – significantly reduces this effect. Further, imagination can compensate for the need for touch; yet this finding holds only for the instrumental need for touch, not for the autotelic need for touch. Consequently, we conclude that imagination can compensate for the utilitarian need to touch products in a 360-virtual store. 相似文献
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海上训练是海军军官培养的重要环节,外国海军院校高度重视海上训练在人才培养中的作用,科学合理地设置海上训练内容,注重教官队伍建设,为海上训练工作提供了强有力的保障。学习和借鉴外国海军院校开展学员海上训练工作的有益经验,对加强和改进我海军院校学员海上训练工作具有重要意义。 相似文献
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学科政策是科学政策的重要组成部分，对国家科学的发展影响深远。本文从学科的功能和学科政策的基本内涵出发，考察学科政策的社会经济因素及其影响，比较分析发达国家学科政策的主要类型和特点，指出国家科学资助机构在促进学科发展中的独特优势，进而提示对我国学科建设和学科发展的启示意义。 相似文献
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当前高校物流本科人才培养难以达到企业中高级物流管理人才的要求,分析物流本科人才培养的问题与对策,具有现实意义。文章在分析物流行业人才需求的基础上,探讨了物流本科人才培养中的问题,提出了优化物流本科人才培养的对策：合理定位人才培养目标;优化人才培养方案;加强师资队伍建设;强化实践教学环节。 相似文献
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滁州市南谯区农村居民点土地置换潜力测算 总被引：10，自引：3，他引：7
农村居民点土地置换是解决区域发展中建设用地指标约束,提高农村居民点土地利用效率的有效途径。本文以滁州市南谯区为例,通过构建集主成分分析、聚类分析等手段的综合研究方法,在影响农村居民点土地置换的指标主成分提取、区域内部分级基础上,提出不同等级、不同时段的人均居民点占地标准并应用于农村居民点土地置换潜力测算研究,将测算结果与根据村庄布点规划确定的农村居民点用地规模进行了对比研究。研究结论主要有:南谯区农村居民点土地置换人均占地标准设置第一等级乡镇2010年、2020年分别为150m2/人、130m2/人,第二等级乡镇2010年、2020年分别为175m2/人、150m2/人,第三等级乡镇2010年、2020年分别为200m2/人、180m2/人;南谯区2010年农村居民点土地置换潜力为4576.34hm2,可置换比例达57.64%,2020年置换潜力为5488.17hm2,可置换比例达69.12%;测算潜力值高于根据村庄布点规划标准确定的农村居民点置换潜力,认为在同样的人口统计口径标准下,本文测算的置换潜力值的可实现程度更高。 相似文献
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山东蓬莱旅游业发展的资源基础与战略构想 总被引：3，自引：0，他引：3
蓬莱市位于山东半岛北端,是中国古代四大港口和近代四大对外通商口岸之一,其历史悠久,知名度高,独特性强,文化积淀丰厚,高品位资源分布集中,具有丰富的人文旅游资源.本文全面分析了蓬莱旅游资源特征;并基于该市旅游产业发展现状及其在发展中存在的经济基础相对薄弱,产业结构偏低,市政建设欠缺等问题,提出了切实可行的客源分级策略、旅游资源深度开发策略、旅游文化开发策略;同时提出了相应的发展措施,建议把发展旅游业纳入政府工作议程,将旅游业作为蓬莱市经济发展的战略性产业,并在加强旅游环保和环保旅游的同时,实行联合促销,强化旅游宣传,促进旅游业的全面和健康的发展. 相似文献
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While social learning is advocated as critical for inducing large-scale shifts toward sustainability, methodological issues associated with designing the opportunities for social learning or guidelines for practitioners seeking to facilitate such learning in cross-disciplinary teams working on sustainability-oriented projects are lacking. This paper draws on a two-year pilot project in Sydney, in which government, industry and academic partners collaborated to learn about the development potential of urine diversion (UD) systems in practice. The concept of ‘Communities of Practice’ was used to identify inherent challenges and opportunities for social learning. An outcome of the project has been the identification of overarching principles for designing opportunities for social learning in such projects, particularly the need (1) to facilitate community-oriented leadership, (2) to develop strategic exercises for collaborative engagement and (3) involvement of actors beyond the boundaries of the experiment to introduce novelty, diversity and cumulative learning opportunities. 相似文献
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通过对我国权威政策法规数据库进行检索,对检索结果从发布时间、发布效力级别等处着手,对我国国家信息资源政策法规建设现状进行分析,思考我国现行信息资源政策法规存在的问题,为今后信息资源政策法规制定提供参考。Abstract： Based on the retrieval of the authorized policy and law databases in China,this article analyzes the status quo of the formulation of policies and laws for information resources in China from the issuing time and the grades of issuing efficacity. The article thinks about the problems in the current policies and laws for information resources in China in an attempt to provide reference for the formulation of policies and laws for information resources in future. 相似文献
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研究基于民生科技对城市社区建设在社区安全、节能环保、健康卫生、生活便利和学习交流等方面发挥的功能和作用,提出民生科技在城市社区建设中体现贡献绩效的主要因素,建立城市社区民生科技贡献绩效评价指标体系,并采用D-S理论的分析方法,通过算例对天津市华苑社区民生科技的贡献绩效进行评价,为民生科技在城市社区的绩效评估提供支撑。 相似文献
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《Information processing & management》2020,57(2):102162
Conversation is the natural mode for information exchange in daily life, a spoken conversational interaction for search input and output is a logical format for information seeking. However, the conceptualisation of user–system interactions or information exchange in spoken conversational search (SCS) has not been explored. The first step in conceptualising SCS is to understand the conversational moves used in an audio-only communication channel for search. This paper explores conversational actions for the task of search. We define a qualitative methodology for creating conversational datasets, propose analysis protocols, and develop the SCSdata. Furthermore, we use the SCSdata to create the first annotation schema for SCS: the SCoSAS, enabling us to investigate interactivity in SCS. We further establish that SCS needs to incorporate interactivity and pro-activity to overcome the complexity that the information seeking process in an audio-only channel poses. In summary, this exploratory study unpacks the breadth of SCS. Our results highlight the need for integrating discourse in future SCS models and contributes the advancement in the formalisation of SCS models and the design of SCS systems. 相似文献
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This study describes theory and methods for developing detonation-driven shock tunnels in hypervelocity test facilities. The primary concept and equations for high-enthalpy shock tunnels are presented first to demonstrate the unique advantage of shock tubes for aerodynamic ground-based testing. Then, the difficulties in simulating flight conditions in hypervelocity shock tunnels are identified, and discussed in detail to address critical issues underlying these difficulties. Theory and methods for developing detonation drivers are proposed, and relevant progress that has advanced the state of the art in large-scale hypersonic test facilities is presented with experimental verifications. Finally, tailored conditions for detonation-driven shock tunnels are described, laying a solid foundation to achieve long test duration. This interface-matching key issue encountered in developing shock tunnels has been investigated for decades, but not solved for detonation drivers in engineering applications. 相似文献
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Artificial intelligence (AI) has been in existence for over six decades and has experienced AI winters and springs. The rise of super computing power and Big Data technologies appear to have empowered AI in recent years. The new generation of AI is rapidly expanding and has again become an attractive topic for research. This paper aims to identify the challenges associated with the use and impact of revitalised AI based systems for decision making and offer a set of research propositions for information systems (IS) researchers. The paper first provides a view of the history of AI through the relevant papers published in the International Journal of Information Management (IJIM). It then discusses AI for decision making in general and the specific issues regarding the interaction and integration of AI to support or replace human decision makers in particular. To advance research on the use of AI for decision making in the era of Big Data, the paper offers twelve research propositions for IS researchers in terms of conceptual and theoretical development, AI technology-human interaction, and AI implementation. 相似文献
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《Information processing & management》2005,41(1):57-74
In this paper, we present a formulation and case studies of the conditions for patenting content-based retrieval processes in digital libraries, especially in image libraries. Inventors and practitioners demand a formulation of the conditions for patenting data-processing processes as computer-related inventions in the form of computer programs. A process for content-based retrieval often consists of a combination of prior disclosed means and also comprises means for parameter setting that is adjusted to retrieve specific kinds of images in certain narrow domains. We focus on requirements for technical advancement (nonobviousness) in the combination of data-processing means, i.e., processes and specification (enablement) on the means for parameter setting in computer programs. Our formulation follows the standards of patent examination and litigation on computer-related inventions in the US. We confirm the feasibility and accountability of our formulation by applying it to several inventions patented in the US. 相似文献
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Kucinskiene ZA Bartlingas J 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2011,21(1):43-48
In Lithuania there are two types of specialists working in medical laboratories and having a university degree: laboratory medicine physicians and medical biologists. Both types of specialists are officially being recognized and regulated by the Ministry of Health of Lithuania. Laboratory medicine physicians become specialists in laboratory medicine after an accredited 4-year multidisciplinary residency study program in Laboratory Medicine. The residency program curriculum for laboratory medicine physicians is presented. On December 9, 2009 the Equivalence of Standards for medical specialists was accepted and Lithuanian medical specialists in Clinical Chemistry and Laboratory Medicine can now apply for EC4 registration. Medical biologists become specialists in laboratory medicine after an accredited 2-year master degree multidisciplinary study program in Medical Biology, consisting of 80 credits. Various postgraduate advanced training courses for the continuous education of specialists in laboratory medicine were first introduced in 1966. Today it covers 1-2-week courses in different subspecialties of laboratory medicine. They are obligatory for laboratory medicine physicians for the renewal of their license. It is not compulsory for medical biologists to participate in these courses. The Centre of Laboratory Diagnostics represents a place for the synthesis and application of the basic sciences, the performance of research in various fields of laboratory medicine, as well as performance of thousands of procedures daily and provision of specific teaching programs. 相似文献
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草坪草转基因研究进展 总被引：28，自引：0，他引：28
系统地回顾了草坪草转基因研究的进展。分析了目前转基因技术在草坪草育种中的局限性。对今后草坪草转基因的发展趋势提出了看法。本文所提供的资料对草坪草的研究和应用具有重要的参考价值。 相似文献