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模糊控制在锅炉燃烧系统中的仿真研究 总被引：1，自引：0，他引：1
将模糊控制方案引入火电厂锅炉燃烧控制系统。通过对以主汽压为研究对象引入模糊控制前后的仿真,表明引入模糊控制后具有较好的控制品质。 相似文献
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根据单缸液压圆锥破碎机的工作特点,设计了基于模糊控制理论的破碎机控制方案与基于PLC及远程监控的硬件实现方案,实现了单缸液压圆锥破碎机的自动控制。 相似文献
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基于专家知识的模糊控制在平衡点附近有盲区,很难提高系统的稳态精度,但是动态响应速度快,抗干扰能力强,而传统PID控制则具有良好的稳态精度,基于以上问题提出了基于PID和模糊控制的变结构非线性控制器--F-PID控制器.在误差小时采用PID控制而在误差大时采用模糊控制,这样获得的控制器的控制效果比传统的PID控制和单纯的模糊控制具有更高的稳态精度和更快的动态响应.本文通过仿真,得到了不错的控制效果,验证了文中方法的优点. 相似文献
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模糊控制用模糊数学的知识模仿人脑的思维方式,对模糊现象进行识别和判决,给出精确的控制量。对被控对象进行控制。本文主要从输入量的选取及其模糊化、模糊控制算法的设计和输出量的解模糊化三个方面介绍了液位模糊控制器的设计。 相似文献
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目前,因为控制对象越来越复杂,一般的控制不能满足要求,给出了一种玛迭尼模糊控制法,模糊控制算法用Neuron C编写,并且运行于控制节点的嵌入式设备中。模糊控制通过单片机设备实现控制信号的识别,模糊控制算法是用软件实现。发酵温度的控制最终用模糊控制优化,并且解决大滞后的延时问题,达到理想的控制效果。 相似文献
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模糊控制的现状与发展 总被引：1，自引：0，他引：1
模糊控制是近代控制理论中一种基于语言规则与模糊推理的高级控制策略和新颖技术。模糊控制方法是智能控制的重要组成部分。简要介绍了模糊控制的概念和原理,较详细地介绍了模糊控制的应用现状,分析了模糊控制理论的优缺点及需要完善和继续研究的内容,最后对模糊控制的发展趋势与动态进行了展望。 相似文献
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随着各种现代技术的不断推广,锅炉热工控制的技术水平得到了很大的提高。现代发展中,模糊控制在锅炉热工控制中的应用,使得锅炉热工控制系统的操作变得简单、方便和快捷,大大提高了电厂的工作效率。本文就模糊控制进行概述,对模糊控制在锅炉热工控制中的应用进行分析和探讨,为锅炉热工控制系统不断完善提供可参考依据。 相似文献
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在智能轮式机器人的研究中,基于模糊控制的避障方法是比较重要的一个研究环节。本文介绍了与模糊控制避障模块相关的模糊控制技术、智能轮式机器人避障模块的硬件结构和软件结构。在智能轮式机器人的测试和应用中,建立控制对象的模糊模型,实现了智能避障。 相似文献
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分析中国医药领域专利知识吸收和扩散演化规律及知识吸收对知识扩散影响,有助于快速选择并吸收相关资源,为加大基础研究投入强度提供数据支撑,为科技资源整合策略提供支持。本文以2000—2014年美国专利商标局收录的中国医药领域2326件专利及其引用的43 822篇专利文献、35 573篇论文文献为研究对象,从专利知识吸收及知识扩散两个角度出发,采用多元方差分析、零膨胀负二项回归及多元线性回归进行多维度分析。结果表明：专利知识吸收逐年增加,但知识扩散并未形成稳定趋势;不同时间段内知识吸收及扩散各测度指标显著不同;专利文献知识吸收数量、质量及论文文献知识吸收质量均对专利知识扩散产生负向影响;吸收论文知识构件对专利知识扩散产生正向影响;吸收论文数量与知识扩散广度、强度负相关;吸收专利知识构件与知识扩散广度正相关,但与知识扩散强度与速度均无相关关系;专利及论文文献知识吸收新颖性对知识扩散广度、强度及速度均无影响。 相似文献
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This paper focuses on the knowledge generation property of science, asking the question how the historical success of science in the field of knowledge generation can be articulated to make it relevant to all approaches used for scientific knowledge generation in a pluralist reality. It proposes that science can be described more appropriately as a capability rather than to describe it methodologically and also provides preliminary indications on how to go about describing science as a capability. The goal of the investigation is to add value to the third generation of knowledge management where knowledge generation becomes important, not only knowledge diffusion. It assumes that knowledge generation is of foundational importance in practical problem solving. 相似文献
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试论知识分享的原因与保护 总被引：4，自引：0，他引：4
本文从时代的发展和知识的特性出发,分析了知识分享的原因,着重探讨了知识分享的保护问题。知识是生产要素,需要建立一套与之相适应的管理体系来保护知识的生产、使用和传播,从而促进知识的创新。在知识经济时代,知识的分享与保护应成为企业知识管理的重点。 相似文献
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Knowledge transfer processes in IT outsourcing relationships and their impact on shared knowledge and outsourcing performance 总被引：1，自引：0，他引：1
What is the impact of specific knowledge-transfer processes on the level of shared knowledge and, in turn, on outsourcing performance in outsourcing relationships? Drawing on a series of case studies covering IT providers and banks, we investigate several applied knowledge-transfer processes dedicated to the transfer of explicit or tacit knowledge between outsourcing banks and their providers. We examine the differential influence of various types of knowledge transfer on shared knowledge between the parties and on the resulting outsourcing performance. Results depict the differential impact of various knowledge-transfer processes dedicated to the transfer of explicit, or tacit knowledge, respectively, on the development of shared knowledge. Interestingly, the combination of both knowledge-transfer processes dedicated to the transfer of explicit knowledge and those dedicated to the transfer of tacit knowledge proves to be most effective. Furthermore the results indicate that high levels of shared knowledge positively influence outsourcing performance. In addition to previous literature, we found transfer processes for explicit knowledge in an outsourcing context to consist of two dimensions: The content dimension, primarily focused on in literature, and the sender–receiver dimension of transfer processes which are rarely addressed in outsourcing literature. The content dimension embraces mechanisms such as trainings, SLAs and standards that define how content has to be interpreted, whereas the sender–receiver dimension of transfer processes of explicit knowledge defines explicit, documented interaction structures between parties. 相似文献
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This paper investigates domestic and foreign innovating firms’ determinants of R&D collaboration with domestic universities and public knowledge institutes in Finland and the Netherlands. We put particular emphasis on the impact of incoming academic spillovers on the probability to co-operate with these public R&D institutes.Based on data from Community Innovation Surveys we find that foreign firms in the Netherlands are less likely to co-operate with domestic public knowledge institutions than domestic firms, while in Finland no significant difference can be detected. Another result is that incoming knowledge spillovers are an important determinant for R&D collaboration with domestic public knowledge institutions in both countries. In case of foreign firms in Finland, incoming knowledge spillovers affect the probability to co-operate with public knowledge institutions more positively compared to domestic firms. For the Netherlands no substantial difference could be found in this respect. Further, innovating firms in Finland that require academic or basic knowledge do not co-operate significantly more with public knowledge institutions than those that need applied knowledge. At the same time they are willing to share knowledge with public R&D partners. In the Netherlands innovating firms that require relatively more basic than applied knowledge, increase the probability of co-operation with Dutch universities and public knowledge institutions but there is reluctance to share proprietary knowledge with public R&D partners. For both countries no significant difference between foreign and domestic firms with regard to academic knowledge requirements could be found. This raises the issue whether Finnish innovation policies with a strong focus on R&D co-operation provide incentives for strategic behaviour by domestic public partners to put more emphasis on applied research. 相似文献
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知识具有默会性和情境依赖性,默会知识的交流、共享与情境密切相关．默会知识的共享实质上是一个知识创造的过程,只有亲临现场、共同在场、互动沟通,才能有效地传递与分享默会知识,并基于此创造知识信息化为知识共享创造了条件,有利于促进知识共享,但非结构化的问题难以通过信息化的手段进行处理,信息系统在共享默会知识、情境依赖性知识时往往无能为力,永远都无法完全替代主体共同在场的面对面的互动沟通．因此,为实现情境依赖性的默会知识充分共享并创造知识,即使在信息化的背景下,也有必要进行共同在场的沟通． 相似文献
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企业实施知识管理的误区和对策 总被引：2，自引：0，他引：2
知识管理是中国企业在知识经济时代的必然选择。从知识与信息的概念入手，剖析知识与信息，知识管理与信息管理的关系，指出知识管理不是信息管理，其核心是人力资源管理，其内容是知识资本，其关键是知识创新。实施知识管理，要积极促进知识共享机制的形成，设立CKO职位，创建知识创新的激励机制。 相似文献
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知识共享行为是一种高度情景嵌入性行为，但以往研究鲜有同时关注文化情景与知识情景对知识共享行为的影响机理。本文选取集体主义导向作为文化情境的代表构念，选取知识的隐性程度、感知的知识个体所有权、感知的知识价值作为知识情景的代表构念，探究了集体主义导向(文化情景)、三类知识属性(知识情景)与知识共享行为之间的关系。通过多源信息(自我+他人汇报)问卷调查，采集了1182份有效数据。研究结果表明：集体主义导向促进知识共享行为；知识的隐性程度和感知的知识个体所有权抑制知识共享行为；感知的知识价值与知识共享行为存在“倒U型”关系；感知的知识个体所有权和感知的知识价值正向调节集体主义导向与知识共享行为间关系。 相似文献
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Studies addressing the connections between knowledge and organization structures can be divided into two classes. One class holds that a perspective on knowledge signals shortcomings of classical design principles and calls for flatter hierarchy and less specification of the production structure. Another class maintains that a knowledge perspective on organizations is at odds with any design perspective, whether classical or not, because the emergent, thoroughly social and practice-based nature of knowledge as knowing in action makes knowledge a useless and even dangerous beacon to designers: ex ante, knowledge is said to be fundamentally indeterminate and any attempt to ‘structure around knowledge’ may effectively drive out knowledge. To explore differences and possible bridges between these two calls of studies, the paper explores how both elements of the equation, organization structure and organizational knowledge, are to be conceived to ensure a meaningful connection between them. It is argued that the grouping focus in both defines the meeting place of organization structures and organizational knowledge, but shows that the involved knowledge and grouping concepts are not mutually compatible. It leads to a view where organization structures are seen as the ‘seeding’ background for knowledge integration processes that, in turn, constitute the patterns of work relationships envisioned in the designer's organizational decomposition and grouping. For illustration purposes, the paper presents the example of the Max Planck Institute that describes one possible way through the conceptual model presented in the paper. 相似文献