作为一种新兴的教育方式,严肃游戏可以有效地促进知识生成和技能提升。为描绘国际严肃游戏领域的研究图景,本文借助Cite Space软件,收集和分析Web of Science核心合集数据库中包含的2007年至2021年有关严肃游戏研究的相关文献,通过构建...作为一种新兴的教育方式,严肃游戏可以有效地促进知识生成和技能提升。为描绘国际严肃游戏领域的研究图景,本文借助Cite Space软件,收集和分析Web of Science核心合集数据库中包含的2007年至2021年有关严肃游戏研究的相关文献,通过构建严肃游戏研究的发展历程、发展热点,以及发展趋势三个方面的知识图谱,厘清严肃游戏的定义和研究范畴。展开更多
目前我市各区县转播台站本地省市节目信号源基本通过有线电视,中央台节目基本利用卫星接收,技术手段单一,且位处高山,架设电缆难度大、成本高、故障节点多,维护时效慢。为提高我市无线转播台站安全播出等级和广播电视传输及监测技术水平...目前我市各区县转播台站本地省市节目信号源基本通过有线电视,中央台节目基本利用卫星接收,技术手段单一,且位处高山,架设电缆难度大、成本高、故障节点多,维护时效慢。为提高我市无线转播台站安全播出等级和广播电视传输及监测技术水平,加强我市舆论监督和阵地建设,拟利用微波手段构建TS Over IP架构福州市市级IP微波传输网,整体方案以福州广播电视台为前端机房(信源)向各区县转播台站下发所需节目信源,并收集各区县回传的监测数据,为下一步市级融媒体监测平台提供依据。展开更多
The HEAVEN-I laser is used for direct drive quasi-isentropic compression up to -18 GPa in samples of aluminum without being temporal pulse shaped. The monotonically increasing loading is with a rise time over 17ns. Th...The HEAVEN-I laser is used for direct drive quasi-isentropic compression up to -18 GPa in samples of aluminum without being temporal pulse shaped. The monotonically increasing loading is with a rise time over 17ns. The compression history is well reproduced by the ID radiation hydrodynamics simulation. We find that a small shock precursor where the backward integration method cannot process is formed at the beginning of illumination. We compare the loading process of HEAVEN-I with the typical profile （concave down, prefect pulse shape）, the results show that a typical profile can obtain more slowly rising and higher pressure, and the shock precursor has significant effects on temperature and entropy production. However, it is demonstrated that the HEAVEN-I is an excellent optical source for direct laser-driven quasi-isentropic compression, even if it produces more temperature rise and entropy than the typical profile.展开更多
文摘作为一种新兴的教育方式,严肃游戏可以有效地促进知识生成和技能提升。为描绘国际严肃游戏领域的研究图景,本文借助Cite Space软件,收集和分析Web of Science核心合集数据库中包含的2007年至2021年有关严肃游戏研究的相关文献,通过构建严肃游戏研究的发展历程、发展热点,以及发展趋势三个方面的知识图谱,厘清严肃游戏的定义和研究范畴。
文摘目前我市各区县转播台站本地省市节目信号源基本通过有线电视,中央台节目基本利用卫星接收,技术手段单一,且位处高山,架设电缆难度大、成本高、故障节点多,维护时效慢。为提高我市无线转播台站安全播出等级和广播电视传输及监测技术水平,加强我市舆论监督和阵地建设,拟利用微波手段构建TS Over IP架构福州市市级IP微波传输网,整体方案以福州广播电视台为前端机房(信源)向各区县转播台站下发所需节目信源,并收集各区县回传的监测数据,为下一步市级融媒体监测平台提供依据。
文摘The HEAVEN-I laser is used for direct drive quasi-isentropic compression up to -18 GPa in samples of aluminum without being temporal pulse shaped. The monotonically increasing loading is with a rise time over 17ns. The compression history is well reproduced by the ID radiation hydrodynamics simulation. We find that a small shock precursor where the backward integration method cannot process is formed at the beginning of illumination. We compare the loading process of HEAVEN-I with the typical profile （concave down, prefect pulse shape）, the results show that a typical profile can obtain more slowly rising and higher pressure, and the shock precursor has significant effects on temperature and entropy production. However, it is demonstrated that the HEAVEN-I is an excellent optical source for direct laser-driven quasi-isentropic compression, even if it produces more temperature rise and entropy than the typical profile.
