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基于ANP的直升机单机森林灭火训练效能评估 被引量:6
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作者 陈杰 刘虎 +2 位作者 孙雪 王宁 戴鑫 《北京航空航天大学学报》 EI CAS CSCD 北大核心 2017年第4期782-789,共8页
现有的直升机单机森林灭火训练效能评估方法仅针对取水灭火过程,忽视了其他任务环节对训练效能的贡献,并假设指标间相互独立,因此导致评估指标体系不全面、指标权重分配不合理,评估结果的可靠性低。利用离散事件系统建模理论建立的事件... 现有的直升机单机森林灭火训练效能评估方法仅针对取水灭火过程,忽视了其他任务环节对训练效能的贡献,并假设指标间相互独立,因此导致评估指标体系不全面、指标权重分配不合理,评估结果的可靠性低。利用离散事件系统建模理论建立的事件活动流将直升机单机森林灭火训练任务分解成若干相关活动,活动映射法对各活动效能要素进行分析并转化为效能评估指标,最终构建出全面的两维度效能评估指标体系;网络分析法(ANP)的使用考虑了评估指标间具有的依赖和相关关系,对指标权重进行重新合理分配,评估方法更符合问题的实际情况,评估结果更加可信。基于超级决策(SD)软件的案例分析表明,所提出的效能评估方法具有工程应用的可行性和参考价值。 展开更多
关键词 直升机森林灭火训练 效能评估 事件活动 活动映射 网络分析法(ANP)
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新冠肺炎疫情下的医院弹性空间管理 被引量:3
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作者 乐云 雪克来提·亥依热特 +1 位作者 李永奎 虞涛 《同济大学学报(自然科学版)》 EI CAS CSCD 北大核心 2021年第2期289-297,共9页
医院是抗击新冠肺炎疫情的核心部门,医院用户活动的有效管理、空间使用率的提升成为当前急需解决的问题。在空间使用分析方法中引入弹性空间的概念来分析医院用户活动和空间使用特征,通过构建医院用户活动-空间映射过程,将满足一类用户... 医院是抗击新冠肺炎疫情的核心部门,医院用户活动的有效管理、空间使用率的提升成为当前急需解决的问题。在空间使用分析方法中引入弹性空间的概念来分析医院用户活动和空间使用特征,通过构建医院用户活动-空间映射过程,将满足一类用户单一活动的医院空间变成满足多类用户多个活动的医院空间。最后,通过案例验证该方法的符合性和可接受性。 展开更多
关键词 医院空间管理 弹性空间 活动-空间映射
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水面舰艇防空作战能力的需求生成方法 被引量:5
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作者 许俊飞 邢昌风 吴玲 《火力与指挥控制》 CSCD 北大核心 2016年第2期128-131,135,共5页
为了更好地量化表达水面舰艇所具备的防空作战能力,提出了一种基于元活动的能力需求生成方法。建立了能力需求生成框架,在此框架下进行元活动库的提取,能力指标的分解,元活动-能力指标映射规则的分析得到中近程拦截能力的能力指标并进... 为了更好地量化表达水面舰艇所具备的防空作战能力,提出了一种基于元活动的能力需求生成方法。建立了能力需求生成框架,在此框架下进行元活动库的提取,能力指标的分解,元活动-能力指标映射规则的分析得到中近程拦截能力的能力指标并进行了冲突消解,验证了所提方法的有效性。 展开更多
关键词 能力需求生成 活动 活动-能力指标映射规则 冲突消解
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Teaching College English Grammar in a Cognitive Task-Based Approach
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作者 XU Jing 《Sino-US English Teaching》 2016年第1期8-13,共6页
Teaching College English in a cognitive task-based approach is actually a way to incorporate the grammar teaching within the well-sequenced activities. In this approach, language teachers draw learners' attention to ... Teaching College English in a cognitive task-based approach is actually a way to incorporate the grammar teaching within the well-sequenced activities. In this approach, language teachers draw learners' attention to the grammatical structures and try to be explicit about the relation between the form and the function either to confirm or to correct learners' hypotheses and develop their cognitive form-meaning mapping. The tasks should be designed to allow the structure to happen incidentally rather than give an overt explanation of rules. By the individualized mapping of meaning to the forms in the real meaningful context, the learners' initiatives in learning grammar would be greatly triggered. 展开更多
关键词 grammar fatigue form-meaning mapping a cognitive task-based approach
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On brain activity mapping: Insights and lessons from Brain Decoding Project to map memory patterns in the hippocampus 被引量:1
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作者 TSIEN Joe Z. LI Meng +9 位作者 OSAN Remus CHEN GuiFen LIN LongNian WANG Phillip Lei FREY Sabine FREY Julietta ZHU DaJiang LIU TianMing ZHAO Fang KUANG Hui 《Science China(Life Sciences)》 SCIE CAS 2013年第9期767-779,共13页
The BRAIN project recently announced by the president Obama is the reflection of unrelenting human quest for cracking the brain code, the patterns of neuronal activity that define who we are and what we are. While the... The BRAIN project recently announced by the president Obama is the reflection of unrelenting human quest for cracking the brain code, the patterns of neuronal activity that define who we are and what we are. While the Brain Activity Mapping proposal has rightly emphasized on the need to develop new technologies for measuring every spike from every neuron, it might be helpful to consider both the theoretical and experimental aspects that would accelerate our search for the organizing principles of the brain code. Here we share several insights and lessons from the similar proposal, namely, Brain Decoding Project that we initiated since 2007. We provide a specific example in our initial mapping of real-time memory traces from one part of the memory circuit, namely, the CA1 region of the mouse hippocampus. We show how innovative behavioral tasks and appropriate mathematical analyses of large datasets can play equally, if not more, important roles in uncovering the specific-to-general feature-coding cell assembly mechanism by which episodic memory, semantic knowledge, and imagination are generated and organized. Our own experiences suggest that the bottleneck of the Brain Project is not only at merely developing additional new technologies, but also the lack of efficient avenues to disseminate cutting edge platforms and decoding expertise to neuroscience community. Therefore, we propose that in order to harness unique insights and extensive knowledge from various investigators working in diverse neuroscience subfields, ranging from perception and emotion to memory and social behaviors, the BRAIN project should create a set of International and National Brain Decoding Centers at which cutting-edge recording technologies and expertise on analyzing large datasets analyses can be made readily available to the entire community of neuroscientists who can apply and schedule to perform cutting-edge research. 展开更多
关键词 BRAIN project Brain Decoding Project brain activity map learning and memory episodic memory semantic knowledge IMAGINATION concepts fear conditioning earthquake experiences neural code
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