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71.
专利规避设计需从现有专利中遴选具有核心竞争力的目标专利,以提升技术起点。针对设计领域的海量专利信息,提出了专利质量多指标主客观综合评价模型。分析专利书目信息与专利质量存在的正相关关系,甄选存活期、权利项数、同族专利数、引证数和被引证数等书目信息指标,构建了专利质量多指标综合评价指标体系,提升了评价方法的科学性和可操作性;提出将德尔菲法、层次分析法和均方差决策法相结合的主客观赋权法,确定专利质量评价指标权重,既保证了评价的权威性,又减小了个人偏见与从众妥协等因素的影响;建立了基于质量评价模型遴选目标专利的过程模型,并通过应用实例验证了该模型对遴选具有核心竞争力专利的有效性。  相似文献   
72.
In recent years, the Industry 4.0 concept brings new demands and trends in different areas; one of them is distributing computational power to the cloud. This concept also introduced the Reference Architectural Model for Industry 4.0 (RAMI 4.0). The efficiency of data communications within the RAMI 4.0 model is a critical issue. Aiming to evaluate the efficiency of data communication in the Cloud Based Cyber-Physical Systems (CB-CPS), this study analyzes the periods and data amount required to communicate with individual hierarchy levels of the RAMI 4.0 model. The evaluation of the network properties of the communication protocols eligible for CB-CPS is presented. The network properties to different cloud providers and data centers’ locations have been measured and interpreted. To test the findings, an architecture for cloud control of laboratory model was proposed. It was found that the time of the day; the day of the week; and data center utilization have a negligible impact on latency. The most significant impact lies in the data center distance and the speed of the communication channel. Moreover, the communication protocol also has impact on the latency. The feasibility of controlling each level of RAMI 4.0 through cloud services was investigated. Experimental results showed that control is possible in many solutions, but these solutions mostly cannot depend just on cloud services. The intelligence on the edge of the network will play a significant role. The main contribution is a thorough evaluation of different cloud providers, locations, and communication protocols to provide recommendations sufficient for different levels of the RAMI 4.0 architecture.  相似文献   
73.
This article proposes a complex network methodology for the process of Environmental Impact Assessment (EIA) that limits subjectivity and reduces uncertainty by incorporating elements of complex systems theory in the stages of identification and assessment of the significance of environmental impacts. The proposed methodology reduces the sources of uncertainty, which emerge from the use of simplified models that analyse the environment-activity interactions in a unidirectional fashion. This proposal determines the significance of environmental impacts through multidirectional or complex causal relationships. Likewise, it limits the subjectivity of the evaluator by using these causality relationships instead of criteria based on the impacts’ attributes. The application of the proposed methodology demonstrates the advantages of (i) prioritizing the impacts according to their capacity to interact with other impacts, and (ii) the possibility to redirect the environmental management plans towards the prevention of impacts of higher complexity and to reduce the importance of derived impacts.

The application of the proposed methodology reveals that the percentage of irrelevant and moderate impacts is reduced, whereas the percentage of severe and critical impacts increase, in comparison to the conventional methodologies.  相似文献   

74.
Collaboration with artificial intelligence (AI) is a growing trend even in the field of creativity. This paper examines which quantitative metrics can be used to comparatively analyse human-computer co-creativity with children. To study this question, 24 schoolchildren of age 10–11 wrote a poem with three co-creative poetry writing processes: a human-computer, a human-human, and a human-human-computer process. The computational participant in the processes was an AI-based application called the Poetry Machine. The children were asked to evaluate their user experience with a 5-point Likert-type questionnaire after each writing process and a comparative questionnaire after finishing all processes. The metrics used in the evaluation were immediate fun, long-term enjoyment, creativity, self-expression, outcome satisfaction, ease of starting and finishing writing, quality of ideas and support from others, and ownership.

Significant differences were found in fun, long-term enjoyment, quality of ideas, support, and ownership. The high number of statistically relevant results was enabled by exposing all participants to all writing processes, and the comparative questionnaire. The human-human-computer process was evaluated the best in long-term enjoyment and the human-computer process the weakest in support and idea quality. Creativity and ease of finishing writing turned out to be outlining metrics for the co-creative processes.  相似文献   

75.
为准确评价尾矿库的安全等级,以黄金洞尾矿库为例,分析影响尾矿库安全的各因素之间的关系,综合运用模糊多元联系度理论与层次分析法(AHP),建立了包含5个影响因素和26个影响因子的尾矿库综合安全评价模型。由AHP得出各项主、客观指标的权重系数,引入模糊多元联系度理论,综合考虑确定性与不确定性因素,处理综合集成问题,构造隶属函数量化指标的实测值。结果表明:黄金洞尾矿库安全等级为Ⅱ级,尾矿库处于较稳定状态。经比较不确定性因素大小,得出尾矿排放(B3)>尾矿坝(B2)>安全管理(B1)>尾矿输送与回水(B5)>排洪系统(B4),说明尾矿排放指标的不确定性因素最大,需对尾矿排放加强管理。该模型得到的评价结果与实际结果相吻合,为尾矿库安全性评价提供了一种可行的方法。  相似文献   
76.
新型冠状病毒肺炎(以下简称新冠肺炎)疫情对上海经济社会发展造成了诸多影响,上海正在深入学习贯彻习近平总书记系列重要讲话精神,坚定推进"两手抓、两手硬、两手赢"。通过电话咨询部分企业家、查阅媒体相关文献、对比SARS疫情、政策分析等方式,研究认为新冠肺炎疫情对上海经济发展的影响可以从"短期-中期-长期"的时间序列进行分析,而对社会发展影响则可从"个人-社区-城市-社会"空间序列进行探讨,在影响机制的基础上还提出了相应的对策建议。  相似文献   
77.
黄璟晗 《汽轮机技术》2020,62(2):154-155
以某F级燃机联合循环机组为例,考虑电价气价和年利用小时数等因素,研究燃机控制直接降NOx和使用SCR脱硝对于经济性的影响。  相似文献   
78.
79.
湖南某铀矿为我国一重要铀资源生产基地,长年的矿冶活动使该铀矿冶地域生态环境不可避免地遭到了一定程度破坏。本文以该铀矿冶地域介形类为研究对象,分析其分布与生态特征,并利用该生物评价本矿冶地域地表水放射性污染状况。结果表明,Cypridopsis vidua在溪流与河流中均有分布,Helerocypris incongruens仅发现于河流,两者丰度均不高。利用该两种介形类丰度及总丰度变化可指示水体铀浓度的变化,丰度越小,铀含量越大,反之亦然。Shannon-Wiener物种多样性指数与水体铀浓度呈明显负相关,表明也可利用介形类生物指数指示水体铀浓度。该生物指数明显偏低,说明该铀矿冶地域地表水环境质量需要改善,放射性污染应引起足够重视。  相似文献   
80.
《Oil and Energy Trends》2020,45(5):56-58
Currency exchanges rates – updated monthly. Economic indicators of industrial production. Countries included: France, Germany, Italy, the United Kingdom, the United States, Canada, Japan (Total G-7), Eurozone and Total EU-28 (Total OECD). Updated monthly. Economic indicators of car registration in the United States, Canada, France, Germany, Italy, Poland, Spain, Turkey, the United Kingdom, Japan, Republic of Korea and Other OECD (Total OECD-30). Updated monthly. Monthly averages of crude steel production in thousand metric tons for the United States, Canada, Brazil, Mexico, Austria, Belgium, Czech Republic, France, Germany, Italy, Netherlands, Poland, Spain, Sweden, Turkey, the United Kingdom, Russia, Ukraine, South Africa, Iran, China, India, Japan, Republic of Korea, Taiwan and Australia.  相似文献   
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