首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   44篇
  免费   0篇
教育   28篇
科学研究   6篇
各国文化   2篇
体育   3篇
信息传播   5篇
  2022年   1篇
  2021年   2篇
  2020年   1篇
  2019年   2篇
  2018年   3篇
  2017年   4篇
  2016年   1篇
  2015年   2篇
  2014年   3篇
  2013年   9篇
  2012年   2篇
  2011年   2篇
  2010年   2篇
  2009年   1篇
  2008年   2篇
  2005年   1篇
  2004年   2篇
  2002年   2篇
  2001年   1篇
  1989年   1篇
排序方式: 共有44条查询结果,搜索用时 62 毫秒
31.
INTRODUCTION There is growing consensus among computa-tional scientists that observational data, result of computation and other forms of information produced by an individual or a research group need to be shared and used by other authorized groups across the world through the entire life cycle of the information (Wil-liams, 1998; Rowe et al., 2001). The Web has revo-lutionized the electronic publication of data. It has relied primarily on HTML that emphasizes a hypertext document app…  相似文献   
32.
Research in Science Education - The purpose of this study was to develop and validate a survey of opportunities to participate (OtP) in science that will allow educators and researchers to closely...  相似文献   
33.
Abstract

Information technology capable of real‐time evaluation has changed the nature of labor control by completely monitoring a system. This homeostasis of real‐time control eliminating the space barrier has increased workers' stress and anxiety and weakened the workers' solidarity. An IT surveillance system, frequently called an electronic panopticon, has been viewed as the sophisticated form of the Talyor principle of scientific management. However, IT surveillance has operated in the way of combined form with the cultural values of a certain society. In this paper, I show how cultural values influence labor control through IT surveillance using a case study from the tire industry. H tire company has introduced the DAS (Data Acquisition System) for increasing productivity through a new control system. Real‐time evaluation, an instant report of each workers' merit on the monitor, and compensation have made workers feel constantly under surveillance and under stress due to competition with other workers. This IT surveillance has more deeply influenced labor control when combined with patriarchal familism – composed of features such as group‐oriented attitudes, hierarchical relations between the old and young, subordination to one's seniors, etc, which have come to be viewed as some of the typical cultural values prevalent in South Korea. Although the basic principle of technology may be the same in all societies, the effects of applied information technology depend on specific socio‐historical contexts: not only culture, habits, and politics, but also the power relations between managers and workers. I will tentatively designate this as a ‘hybrid form’ of labor control, in the sense that cultural value is added or intermingled with the principle of IT surveillance.  相似文献   
34.
The UN Convention on the Rights of the Child has during recent decades influenced professionals and policy‐makers in Norway as well as in other countries, resulting in changes in documents regulating early childhood institutions. Little is known, however, about the way this right is understood and realized in everyday practice. How is the concept of participation understood by professionals in the field? What issues emerge as problematic in everyday practice? Combining findings from an evaluation study and research from early childhood institutions, it is possible to unravel three problem areas. They are described under these headings: (a) Interpreting participation with a bias towards individualism? (b) Play and playful interaction – an integral part of children's right to participation? (c) Are the youngest children ‘mature’ enough? The article is rounded off by pointing to the need to pay critical attention both to what is happening on policy levels, and to theoretical perspectives influencing the professionals in the field.  相似文献   
35.
A fault tolerant control scheme for actuator and sensor faults is proposed for a tilt-rotor unmanned aerial vehicle (UAV) system. The tilt-rotor UAV has a vertically take-off and landing (VTOL) capability like a helicopter during the take-off & landing while it could cruise with a high speed as a conventional airplane flight mode. A dual system in the flight control computer (FCC) and the sensor is proposed in this study. To achieve a high reliability, a fault tolerant flight control system is required for the case of actuator or sensor fault. For the actuator fault, the fault tolerant control scheme based on model error control synthesis is presented. A designed fault tolerant control scheme does not require system identification process and it provides an effective reconfigurability without fault detection and isolation (FDI) process. For the sensor fault, the fault tolerant federated Kalman filter is designed for the tilt-rotor UAV system. An FDI algorithm is applied to the federated Kalman filter in order to improve the accuracy of the state estimation even when the sensor fails. For a linearized six-degree-of-freedom linear model and nonlinear model of the tilt-rotor UAV, numerical simulation and process-in-the-loop simulation (PILS) are performed to demonstrate the performance of the proposed fault tolerant control scheme.  相似文献   
36.
Antioxidative and cytotoxic effects of chamomile (Matricaria chamomilla) fermented by Lactobacillus plantarum were investigated to improve their biofunctional activities. Total polyphenol (TP) content was measured by the Folin-Denis method, and the antioxidant activities were assessed by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method and β-carotene bleaching method. AGS, HeLa, LoVo, MCF-7, and MRC-5 (normal) cells were used to examine the cytotoxic effects by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT) assay. The TP content of fermented chamomile reduced from 21.75 to 18.76 mg gallic acid equivalent (mg GAE)/g, but the DPPH radical capturing activity of fermented chamomile was found to be 11.1% higher than that of nonfermented chamomile after 72 h of fermentation. Following the β-carotene bleaching, the antioxidative effect decreased because of a reduction in pH during fermentation. Additionally, chamomile fermented for 72 h showed a cytotoxic effect of about 95% against cancer cells at 12.7 mg solid/ml of broth, but MRC-5 cells were significantly less sensitive against fermented chamomile samples. These results suggest that the fermentation of chamomile could be applied to develop natural antioxidative and anticancer products.  相似文献   
37.
38.
Contemporary discussions of globalisation (in general) and postcolonialism (more specifically) have largely remained wed to critiques of the West, including around its outsized role in the proliferation of neoliberal economic logics. As Chen argues in Asia as Method, these discussions have precluded other kinds of discussions about globalisation and its ‘theories’ – those that are generated between Asian countries and peoples (recognising that ‘Asia’ itself is a construction). In this essay, we look towards a different kind of conversation about the postcolonialism, one that does not take the West as its primary interlocutor. We will look closely at two South Korean contemporary artists – Do Ho Suh (1962–) and Kimsooja (1957–) – and see how they work through contemporary, material concerns around ‘home’ and ‘place’. In particular, these artists point us towards ‘movement’ as a trope for displacing extant concerns with fixed identity and as a kind of ontological state of being in the world.  相似文献   
39.
This study, analysing an entertainment-education drama's episodes and bulletin board messages about the episodes, explored the relationship between audience involvement and its antecedents. Episode topic and issue controversy were associated with parasocial interaction and reflection as well as behavioural responses (poll participation and message contribution). This study also found the possibility that entertainment-education interventions could be effectively executed by combining old media's entertainment and education function and cyber media's information and discussion forum providing function.  相似文献   
40.
In the Visible Korean project, serially sectioned images of the pelvis were made from a female cadaver. Outlines of significant structures in the sectioned images were drawn and stacked to build surface models. To improve the accessibility and informational content of these data, a five‐step process was designed and implemented. First, 154 pelvic structures were outlined with additional surface reconstruction to prepare the image data. Second, the sectioned and outlined images (in a browsing software) as well as the surface models (in a PDF file) were placed on the Visible Korean homepage in a readily‐accessible format. Third, all image data were visualized with interactive elements to stimulate creative learning. Fourth, two‐dimensional (2D) images and three‐dimensional (3D) models were superimposed on one another to provide context and spatial information for students viewing these data. Fifth, images were designed such that structure names would be shown when the mouse pointer hovered over the 2D images or the 3D models. The state‐of‐the‐art sectioned images, outlined images, and surface models, arranged and systematized as described in this study, will aid students in understanding the anatomy of female pelvis. The graphic data accompanied by corresponding magnetic resonance images and computed tomographs are expected to promote the production of 3D simulators for clinical practice. Anat Sci Educ 6: 316–323. © 2013 American Association of Anatomists.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号