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22.
谢宜海 《安徽工业大学学报(社会科学版)》2002,19(2):148-149
旋转推铅是推铅球的方法之一.要学会这种方法,在教与学的过程中必须掌握:扭转推球、控制转动惯量给人体平衡造成的干扰、射体重心向圆心移动、旋转与投掷之间的衔接等技术要素. 相似文献
23.
一种改进的信息检索方法 总被引:1,自引:0,他引:1
在数据库系统的基础上,利用模糊数学的方法和工具对传统信息检索进行扩充,从而得到一种改进的信息检索方法。主要包括:提出解决问题的方法、选择实用性强的数据库系统、确定接近于自然语言的隶属函数、构造含模糊化的SQL命令并加以实现。 相似文献
24.
Sven Rady 《Finance and Stochastics》1997,1(4):331-344
This paper uses a probabilistic change-of-numeraire technique to compute closed-form prices of European options to exchange
one asset against another when the relative price of the underlying assets follows a diffusion process with natural boundaries
and a quadratic diffusion coefficient. The paper shows in particular how to interpret the option price formula in terms of
exercise probabilities which are calculated under the martingale measures associated with two specific numeraire portfolios.
An application to the pricing of bond options and certain interest rate derivatives illustrates the main results. 相似文献
25.
文章充分利用项目和岗位在实践中承载知识的有利条件,面向项目和岗位,提出了在建设项目管理中建立与优化知识库的新思路,即应该从知识的来源分类存贮知识,并根据知识的应用范围和应用条件建立分级分类的知识库体系;通过串行和并行智能体Agent辅助岗位完成知识的采集与挖掘,使整个知识库体系在应用中具备自我学习和发展的能力。 相似文献
26.
阐述了计量标准考核的现状及存在问题,提出了在计量标准考核中运用数理统计技术的具体方法、步骤,即通过核查标准建立测量过程统计控制,进而实现实验室的运行控制。 相似文献
27.
《Futures》2015
The Scenario Analysis methods have often been used by policy makers as an instrument to manage uncertainty and to support the shaping of long-term economy policies. In this research, we apply Scenario Analysis in order to identify the barriers affecting the decision to invest in the Concentrated Solar Power (CSP) sector in Morocco. Our results aim at facilitating the process of defining different paths in strategic political and policy actions. Using data from a survey on a panel of experts, the Cross Impact Analysis (CIA) and the Cross Impact Matrix System (SMIC) techniques are applied. The advantage of these techniques is that they allow including in the analysis the interlinkages between the events that will define the future scenarios. However, their limitation is that the number of events analyzed cannot be too high since the information collected from the experts increases exponentially according to the number of events introduced. We thus expand our analysis with a new methodological approach, combining the use of prospective and statistics techniques. This approach allows addressing the mentioned limitation and applying these techniques, initially restricted to 6 events in its common application, to a large number of events. The results show that uncertainty and informality would be key factors in promoting the arrival of companies in this sector. Additionally, regarding companies that already have a presence in Morocco’s renewable energy sector, an increase in activity would be achieved through improvements in the easing of financial and legal barriers. 相似文献
28.
This article focuses on consumer nostalgia in the retailing environment to identify the types of nostalgic memories evoked by remembering a retailer and the elements associated with such nostalgic memories. A projective technique involving collage construction enabled informants to reflect their feelings about, memories of, experiences with, or relationships with a retailer that they have selected. The findings uncovered three distinct types of retailer-related consumer nostalgic memories and six elements that comprise retailer-related consumer nostalgic memories. The findings of the study offer a comprehensive understanding of retailer consumer nostalgia. Theoretical and managerial implications are discussed. 相似文献
29.
本文主要分析了公路桥梁间过渡段出现不均沉降的原因以及公路桥梁间过渡段的施工技术的应用情况,此项技术对降低施工成本,提升桥梁的可靠性与安全性有重要作用。 相似文献
30.
《Socio》2021
With the expansion of urbanization caused by the growth of population and industrial activities, the urban/city and suburban areas are facing a variety of environmental threats. Although more research and urban policy has advocated and practiced the development of green infrastructure (GI) to support urban sustainable environment, the evaluation framework for the development of GI for promoting environmental sustainability is still insufficient. Moreover, the Analytic Hierarchy Process (AHP) commonly applied in published literature, makes an unrealistic assumption of independent relationships among dimensions/criteria in decision making for satisfying the real-world problem. Therefore, the purpose of this study is to construct the evaluation framework, including four dimensions and related ten criteria, using a new hybrid-modified multiple attribute decision-making (MADM) model for developing and improving the GI for promoting environmental sustainability. This MADM model is combined with three different methodologies of MADM, including the Decision-Making Trial and Evaluation Laboratory (DEMATEL) for constructing the influential network relation map (INRM) to explore the complex influential inter-relationships and DEMATEL based on Analytic Network Process (DANP) for determining the influential weights with the VIse Kriterijumska Optimizacija I Kompromisno Resenje (VIKOR) for evaluating and presenting improvement strategies for six different GIs. The empirical study indicates that DEMATEL and DANP Results suggest that decision-makers should pay more attention to the improvement of Design (D4) and Materials (D2) in terms of dimensions when utilizing the GI to promote environmental sustainability. Because these dimensions are enhanced, Species (D1) and Energy (D3) will be improved in synchronization. From the perspective of criteria, five are key core criteria and need to be focused on first: increasing the green coverage rate (B9), utilizing sustainable materials (B4), using ecological engineering (B8), shaping species biodiversity (B1), and reducing energy consumption (B5). Modified VIKOR reveals that “grass swales” are a comparatively better choice among six GIs for promoting environmental sustainability toward achieving the aspiration level. Therefore, this MADM model is beneficial to provide a more convincing assessment framework and improvement strategies for the development of GI for promoting environmental sustainability. As a result, these modified MADM models can be shown more conveniently and reasonably than traditional methods such as traditional AHP or ANP method. 相似文献