Artificial intelligence (AI) has garnered significant interest within the educational domain over the past decade, promising to revolutionise teaching and learning. This paper provides a comprehensive overview of syst...Artificial intelligence (AI) has garnered significant interest within the educational domain over the past decade, promising to revolutionise teaching and learning. This paper provides a comprehensive overview of systematic reviews conducted from 2010 to 2023 on the implementation of AI in K-12 education. By synthesising findings from ten selected systematic reviews, this study explores the multifaceted opportunities and challenges posed by AI in education. The analysis reveals several key findings: AI’s potential to personalise learning, enhance student motivation, and improve teaching efficiency are highlighted as major strengths. However, the study also identifies critical concerns, including teacher resistance, high implementation costs, ethical considerations, and the need for extensive teacher training. These findings represent the most significant insights from the analysis, while additional findings further underscore the complexity and scope of AI integration in educational settings. The study employs a SWOT analysis to summarise these insights, identifying key areas for future research and policy development. This review aims to guide educators, policymakers, and researchers in effectively leveraging AI to enhance educational outcomes while addressing its inherent challenges.展开更多
This paper makes a review of state-of-the- arts designs of successive-approximation register analog-to-digital converters （SAR ADCs）. Methods and technique specifications are collected in view of innovative ideas. A...This paper makes a review of state-of-the- arts designs of successive-approximation register analog-to-digital converters （SAR ADCs）. Methods and technique specifications are collected in view of innovative ideas. At the end of this paper, a design example is given to illustrate the procedure to design an SAR ADC. A new method, which extends the width of the internal clock, is also proposed to facilitate different sampling frequencies, which provides more time for the digital-to-analog convert （DAC） and comparator to settle. The 10 bit ADC is simulated in 0.13 μm CMOS process technology. The signal-to-noise and distortion ratio （SNDR） is 54.41 dB at a 10 MHz input with a 50 MS/s sampling rate, and the power is 330 μW.展开更多
目的系统综述数字赋能技术(DET)促进智力与发展性残疾(IDD)儿童身体活动和健康的效益。方法从PubMed、Embase、Web of Science、PsycINFO和中国知网中,检索2014年至2023年DET在IDD儿童身体活动中的应用相关文献,对文献进行质量评价,对...目的系统综述数字赋能技术(DET)促进智力与发展性残疾(IDD)儿童身体活动和健康的效益。方法从PubMed、Embase、Web of Science、PsycINFO和中国知网中,检索2014年至2023年DET在IDD儿童身体活动中的应用相关文献,对文献进行质量评价,对高质量随机对照研究(RCT)进行系统综述。结果最终纳入8项RCT,来自中国、美国、意大利、韩国4个国家,涉及376例儿童,主要来源于智力残疾应用、发展性残疾研究、临床医学等领域期刊。发表时间主要集中在2018年至2023年。研究对象年龄7~18岁,涵盖智力残疾(包括唐氏综合征)、孤独症和其他发展性残疾。采用的技术包括可穿戴技术、移动健康指导和监测的云计算技术、虚拟现实和增强现实,以及动感游戏技术,设备包括主动视频游戏、Fitbit智能设备、Wii Fit平衡游戏、Stepmania节奏视频游戏、Xbox Kinect系统、VZFit传感器和CoTras认知康复电脑游戏等,虚拟身体活动包括拳击、田径、保龄球、乒乓球、沙滩排球、足球、棒球、滑雪、网球、高尔夫、飞镖、美式足球、射击、跳跃、慢跑和跳绳等。干预频率为每次20~45 min,每周1~5次,持续4~12周;在家庭、特殊教育学校和康复机构中进行。健康效益主要体现在提高身体活动水平、改善身体功能,以及提高运动功能和日常生活活动能力。结论将DET应用到身体活动领域,能提高IDD儿童在虚拟环境下、学校、社区以及康复机构中的身体活动参与水平,改善上下肢活动功能、粗大运动功能和肌肉力量,提高静态平衡功能、运动协调和感觉运动功能,减少久坐行为发生,提升认知、日常生活活动能力和社交能力。展开更多
文摘Artificial intelligence (AI) has garnered significant interest within the educational domain over the past decade, promising to revolutionise teaching and learning. This paper provides a comprehensive overview of systematic reviews conducted from 2010 to 2023 on the implementation of AI in K-12 education. By synthesising findings from ten selected systematic reviews, this study explores the multifaceted opportunities and challenges posed by AI in education. The analysis reveals several key findings: AI’s potential to personalise learning, enhance student motivation, and improve teaching efficiency are highlighted as major strengths. However, the study also identifies critical concerns, including teacher resistance, high implementation costs, ethical considerations, and the need for extensive teacher training. These findings represent the most significant insights from the analysis, while additional findings further underscore the complexity and scope of AI integration in educational settings. The study employs a SWOT analysis to summarise these insights, identifying key areas for future research and policy development. This review aims to guide educators, policymakers, and researchers in effectively leveraging AI to enhance educational outcomes while addressing its inherent challenges.
基金supported in part by the National Natural Science Foundation of China under Grant No.61006027the New Century Excellent Talents Program of the Ministry of Education of China under Grant No.NCET-10-0297the Fundamental Research Funds for Central Universities under Grant No.ZYGX2012J003
文摘This paper makes a review of state-of-the- arts designs of successive-approximation register analog-to-digital converters （SAR ADCs）. Methods and technique specifications are collected in view of innovative ideas. At the end of this paper, a design example is given to illustrate the procedure to design an SAR ADC. A new method, which extends the width of the internal clock, is also proposed to facilitate different sampling frequencies, which provides more time for the digital-to-analog convert （DAC） and comparator to settle. The 10 bit ADC is simulated in 0.13 μm CMOS process technology. The signal-to-noise and distortion ratio （SNDR） is 54.41 dB at a 10 MHz input with a 50 MS/s sampling rate, and the power is 330 μW.
