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101.
杨建军 《科技资讯》2014,(15):111-112
本文主要以单绕组双速电机为例介绍了风力发电机组中双速电机的绕组连结方式,基本控制电路并结合实际应用提出一些日常使用中应该注意的问题。  相似文献   
102.
大数据时代的思维创新有着与以往时代不同的方法及途径.从认知计算——思维的形式化入手,以处理不确定性推理、智能驾驶、自然语言理解及群体智能为例,阐述在大数据时代创新所应采取的思维方式.作为培育创新型人才的大学,除重视单一学科建设外,更多地是要强调多学科的协同和交叉,将分隔的垂直学科划分转变为交叉、协作式的科学研究,在开放协作的环境下寻求创新.  相似文献   
103.
介绍了Big6信息问题解决模式,阐述了Big6在信息检索课教学案例分析中的应用,对于Big6信息检索课的教学模式进行了思考。  相似文献   
104.
We introduce for the first time the concept of anamorphic temporal imaging and its application to analog data compression in a time lens. Placed in front of a conventional spectrometer, this technique enhances the spectral resolution and the update rate. More importantly, it performs real-time optical data compression to reduce the volume of the generated digital data. Our technique introduces the concept of the warped time lens. We show that a specific class of warped time-to-frequency mapping operations combined with the nonlinear operation inherent in a photo-detector compresses the time-bandwidth product in a temporal imaging system. We employ our newly introduced Stretched Modulation Distribution to design the warp profile. Using this method, the narrow spectral features beyond the spectrometer resolution can be captured and at the same time the output bandwidth and hence the record length is minimized. The reduction in the record length results in higher update rate for the spectrometer without sacrificing the spectral resolution or bandwidth. Our method also benefits from amplitude and phase detection to recover the input complexfield spectrum. By compressing the time-bandwidth product, anamorphictemporal imaging addresses the Big Data problem in such highthroughput instruments.  相似文献   
105.
We propose a framework to describe, analyze, and explain the conditions under which scientific communities organize themselves to do research, particularly within large-scale, multidisciplinary projects. The framework centers on the notion of a research repertoire, which encompasses well-aligned assemblages of the skills, behaviors, and material, social, and epistemic components that a group may use to practice certain kinds of science, and whose enactment affects the methods and results of research. This account provides an alternative to the idea of Kuhnian paradigms for understanding scientific change in the following ways: (1) it does not frame change as primarily generated and shaped by theoretical developments, but rather takes account of administrative, material, technological, and institutional innovations that contribute to change and explicitly questions whether and how such innovations accompany, underpin, and/or undercut theoretical shifts; (2) it thus allows for tracking of the organization, continuity, and coherence in research practices which Kuhn characterized as ‘normal science’ without relying on the occurrence of paradigmatic shifts and revolutions to be able to identify relevant components; and (3) it requires particular attention be paid to the performative aspects of science, whose study Kuhn pioneered but which he did not extensively conceptualize. We provide a detailed characterization of repertoires and discuss their relationship with communities, disciplines, and other forms of collaborative activities within science, building on an analysis of historical episodes and contemporary developments in the life sciences, as well as cases drawn from social and historical studies of physics, psychology, and medicine.  相似文献   
106.
通过对分时段电价和用电模式的分析,讨论湿法炼锌的用电模式对生产及电积系统设计的影响。  相似文献   
107.
在大数据时代,数据将取代专利、商标、版权等,成为最主要、最重要的一种知识产权。放弃专利竞赛,投身大数据竞赛,西方大国的知识产权战略将蜕变为大数据战略。以知识产权起家的东亚的孙正义们,能否赢得这场新的大决战?  相似文献   
108.
In this paper I will outline a worry that citizen science can promote a kind of transparency that is harmful. I argue for the value of secrecy in citizen science. My argument will consist of analysis of a particular community (herpers), a particular citizen science platform (iNaturalist, drawing contrasts with other platforms), and my own travels in citizen science. I aim to avoid a simple distinction between science versus non-science, and instead analyze herping as a rich practice [MacIntyre, 2007]. Herping exemplifies citizen science as functioning simultaneously within and outside the sphere of science. I show that herpers have developed communal systems of transmitting and protecting knowledge. Ethical concerns about secrecy are inherently linked to these systems of knowledge. My over-arching aim is to urge caution in the drive to transparency, as the concepts of transparency and secrecy merit close scrutiny. The concerns I raise are complementary to those suggested by previous philosophical work, and (I argue) resist straightforward solutions.  相似文献   
109.
根据预算管理量入为出、综合平衡、防范风险的基本原则,各级企业在编制预算、执行预算中,收到的效果却大不一样,甚至出现了预算形同虚设,执行大大超出预算的现象。究其原因主要是预算管理没有制度化、规范化。  相似文献   
110.
在历史上,赣商曾经风云一时,创造了经营奇迹.由吴子牛导演的电视连续剧<大瓷商>便展示了瓷都的历史面貌,塑造了性格各异的商人形象,并表现了他们的情感历程,为未来赣商的发展提供了可供参照的坐标.  相似文献   
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