掌上技术和学校数学

本文通过对国内外掌上技术在学校数学教学中使用的分析 ,阐述了笔者关于掌上技术在学校数学教学使用中的三个观点 ;更为重要的是 ,笔者提出了在新技术的参与下“学校教学”教育观的三个原则     

区间数多属性决策问题的分析方法

为了解决带有不确定性区间数的多属性决策问题 ,首先必须确定权系数的取值。本文就权系数的两种不同状态 ,给出了两种决策分析方法。每种方法通过求解模型来确定权系数的具体数值 ,最后得出排序方案     

基于用户协作PDMA的星地融合网络性能分析

将用户协作PDMA技术引入到星地融合网络下行链路系统的通信中,目的是当卫星向用户发送PDMA叠加信号时,其中最佳信道用户能够作为半双工中继节点解码和转发其他用户的信息,以提高弱用户的通信性能。文章推导出三用户处于不同程度衰落情况下系统的中断概率和遍历容量表达式,并通过仿真验证了理论分析的正确性,而且证实了与传统的正交多址接入及非协作PDMA系统相比,用户协作PDMA方案可以获得更高的中断性能和遍历容量。     

多元主体需求下的专利预警研究回顾与展望

以现有专利预警相关文献为研究对象,通过系统回顾与深度分析,对多元主体需求下的专利预警研究现状进行总结与梳理,分析其主要特征,并提出促进专利预警研究创新发展的改进思路与方向.研究发现:目前针对专利预警的概念内涵主要围绕专利威胁态势、专利竞争风险和专利侵权纠纷等视角展开探讨,关于专利预警机制建立的必要性、基本原则、关键作用...     

Multiple traumas and resilience among street children in Haiti: Psychopathology of survival

In Haiti, as in several developing countries, the phenomenon of street children has become a major public health issue. These children are often victims of traumas and adverse life events. This article aimed to investigate traumas experienced by street children and their coping and resilience strategies used to deal with adversities in a logic of survival, relying on a mixed method approach. A group of 176 street children, aged 7–18 (n = 21 girls), recruited in Port-au-Prince, completed measures assessing PTSD, social support and resilience. Semi-structured interviews were conducted to document traumatic experiences, factors related to resilience and coping strategies. After performing statistical analyses to evaluate prevalence and predictors associated with PTSD, and level of social support satisfaction and resilience, qualitative analysis using a grounded theory approach was conducted. Results showed that street children experienced multiple traumas such as neglect, maltreatment, psychological, physical and sexual abuse. However, they also showed self-efficacy to face their traumatic experiences and few of them (less than 15%) obtained scores reaching clinical rates of PTSD, while a large majority presented a level of resilience between moderate to very high. A socio-ecological model of multiple traumas and a model of coping, survival and resilience strategies are conceptualized. Data provide a better understanding of the traumas experienced by street children, their coping and resilience strategies. Results underscore ways to develop practices to offer psychological support, social and vocational integration based on the real needs of these children, in a perspective of social justice.     

5G时代图书馆智慧阅读推广服务研究

从5G视角出发阐释智慧阅读的演变优势和服务特点,基于5G+多元智能技术打造智慧阅读空间、阅读游戏开发、智慧阅读营销、阅读资源导航、阅读素养教育的服务体验。为完善5G模式下图书馆智慧阅读的发展格局,论文从维系阅读媒介生态、用户数据的规范与增效、融入情感交互、多样举措融合4个层面对智慧阅读的开展提出参考意见。     

用多元智能理论设计综合实践活动课

本文在介绍多元智能理论以及教改新增的综合实践活动课的基础上，分析了多元智能理论与综合实践活动课的关系，并通过一个案例提出用多元智能理论设计综合实践活动课的方法。     

巧用优势智能优化数学教学策略

多元智能理论打破传统智能论调，指出入的智能的多元性。根据智能迁移规律，将其他优势智能迁移到数理逻辑智能培养过程中，为数学教学提供了一种有意义的优化策略，对于数学教学的改革具有深刻的启迪作用。     

多目标决策评价模型在红小豆育种中的应用

运用基于熵权的多目标决策分析模型,结合模糊数学和熵的思想,运用多属性决策分析中的双基点法,对红小豆品种进行定量评价,结果表明,这种评价模型运算简便,易于掌握,切实可行。     

复合输出回路性能分析

阐述了工作于非线性状态（丙类）的谐振功率放大器阻抗匹配的概念；并论述了复合输出回路的性能特点。