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981.
Healthcare today is mainly knowledge-based and the diffusion of medical knowledge is imperative for proper treatment of patients. Our study of the industry explored barriers to knowledge flow using a Cultural Historical Activity Theory framework. Our work was exploratory and qualitative in nature, and consisted of three phases: in-depth interviews to explore medical knowledge flow barriers resulting in a model; a case study using a survey approach to test and modify the model; and a Delphi study to validate the generalizability of the model. 相似文献
982.
983.
建立电路方程方法的起源、演变与发展 总被引:1,自引:0,他引:1
叶庆云 《电气电子教学学报》2000,22(3):34-36
以线电电阻电路为例,从教学角度研究了建立电路方程方法的起源、演变与发展。 相似文献
984.
A scheme of model studies required to analyse a complex large scale system through decomposition approach is outlined. First,
the total system is proposed to be modelled to identify interlinkages of the subsystems. Then the subsystems are analysed
in detail to develop response functions. Finally the optimal system functioning is obtained by modelling the entire system
in terms of response functions of the components.
A linear programming model is developed for modelling the total system to identify the interlinkages. Its application is demonstrated
in the Greater Ganga Basin using published data. Trade-off is developed between power generation and irrigated area in various
seasons.
A list of symbols is given at the end of the paper. 相似文献
985.
1 Introduction Multiple-access interference (MAI) due to many simultaneous users constitutes the main limitation of DS-CDMA systems. Multiuser detection techniques can efficiently suppress MAI and substantially increase the capacity of CDMA systems. Over … 相似文献
986.
A New Approach for Vehicle Lateral Velocity and Yaw Rate Control with Uncertainty 总被引:1,自引:0,他引:1
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In order to attain excellent stability and maneuverability to ensure safety and ride‐comfort, the lateral velocity and yaw rate of a vehicle are expected to be controlled at any desired values simultaneously. A basic manipulation model of a vehicle with two degrees of freedom which requires two independent control inputs (front and rear steering angle) is constructed. In this model, we consider the mass and the moment of inertia of the vehicle are the uncertain parameters which are (possibly) fast‐varying. However, no further information, except that the uncertainties are bounded, is assumed. Furthermore, the bound is unknown. An adaptive robust control methodology based on the Udwadia and Kalaba approach which guarantees uniform boundedness and uniform ultimate boundedness is proposed to drive the system to follow the pre‐specified constraints approximately. The adaptive law is of leakage type which can adjust itself based on the tracking error. The numerical simulation results conducted by MATLAB demonstrate the ease and effectiveness of implementation. 相似文献
987.
建立“国有企业内控规范”路径之探讨 总被引:1,自引:0,他引:1
陈新环 《石油化工管理干部学院学报》2008,10(3):23-26
为改进和加强国有企业内部控制,提高企业风险防范能力和经营管理水平,促进国有企业可持续发展,建立统一的“国有企业内控规范”十分必要。针对国有企业由于受各种内外部因素的影响,内部控制规范不能按照上市公司的标准要求实施的问题,探讨做好国有企业内部控制管理工作,切实实施内部控制规范的路径。 相似文献
988.
A key challenge for research and practice is to understand how the ecosystem approach can be rolled out in spatial planning, management and decision-making. Any framework used to apply the ecosystem approach needs to not only be environmentally coherent but also socially meaningful. Drawing on semi-structured interviews and case studies, this paper examines the potential role of one place-based approach, landscape character assessment, as a medium to ensure socio-ecological relevance in operationalising the ecosystem approach. Our findings show that although place-based approaches have value as frameworks for distilling the ecosystem approach into a manageable form, their ecological relevance is a subject of debate. However, the potential relationship between landscape character, function and ecosystem services presented a powerful pathway for operationalising the ecosystem approach. The ecosystem approach may, in turn, complement landscape character assessment by providing a framework for exploring the functional dimension of landscape condition. 相似文献
989.
Agglomeration,Differentiation and Creative Milieux: A Socioeconomic Analysis of Location Behaviour of Creative Enterprises in Shanghai 总被引:1,自引:0,他引:1
This paper presents an empirical study on the location choice of creative enterprises in Shanghai. It is suggested that categorical differences between different subsectors of creative industries are significant, especially with regard to a division between technology-intensive sectors and culture-related agencies. Creative enterprises from technology-intensive sectors such as architecture design and IT enterprises appear to differ greatly from cultural and fashion related agencies in location choice due to the disaggregated knowledge inputs involved in the production processes, as well as the divergences in market operation. Meanwhile, this study suggests that some location variables for creative industries (e.g. human capital and face-to-face contact) highlighted by West-based studies on the “creative class” are relevant in the case of Shanghai while other factors like sexual tolerance bear minor importance. 相似文献
990.
Yeong-Bin Yang Zeyang Zhou Xiongfei Zhang Xiaoli Wang 《Frontiers of Structural and Civil Engineering》2022,16(12):1530
The seismic analysis of a viscoelastic half-space under two-dimensional (2D) oblique incident waves is carried out by the finite/infinite element method (FIEM). First, the frequency-domain exact solutions for the displacements and stresses of the free field are derived in general form for arbitrary incident P and SV waves. With the present formulation, no distinction needs to be made for SV waves with over-critical incident angles that make the reflected P waves disappear, while no critical angle exists for P waves. Next, the equivalent seismic forces of the earthquake (Taft Earthquake 1952) imposed on the near-field boundary are generated by combining the solutions for unit ground accelerations with the earthquake spectrum. Based on the asymmetric finite/infinite element model, the frequency-domain motion equations for seismic analysis are presented with the key parameters selected. The results obtained in frequency and time domain are verified against those of Wolf’s, Luco and de Barros’ and for inversely computed ground motions. The parametric study indicated that distinct phase difference exists between the horizontal and vertical responses for SV waves with over-critical incident angles, but not for under-critical incident angles. Other observations were also made for the numerical results inside the text. 相似文献