Over the 30 years, since the Reform and Opening-up to the outside world, Chinese foreign trade has increased from 20.6 billion USD in 1978 to 2.17 trillion USD in 2007, up by 105 times, with an average annual growth o...Over the 30 years, since the Reform and Opening-up to the outside world, Chinese foreign trade has increased from 20.6 billion USD in 1978 to 2.17 trillion USD in 2007, up by 105 times, with an average annual growth of 17.4%.展开更多
In our life, we can't avoid making mistakes. So some advice on how to correct them is very important and helpful to us.The people who care about you will give you some wise advice. When you are in trouble,good adv...In our life, we can't avoid making mistakes. So some advice on how to correct them is very important and helpful to us.The people who care about you will give you some wise advice. When you are in trouble,good advice can always teach you how to solve it and do better.展开更多
为了快速精准地识别复杂果园环境下的葡萄目标,该研究基于YOLOv5s提出一种改进的葡萄检测模型(MRWYOLOv5s)。首先,为了减少模型参数量,采用轻量型网络MobileNetv3作为特征提取网络,并在MobileNetv3的bneck结构中嵌入坐标注意力模块(coor...为了快速精准地识别复杂果园环境下的葡萄目标,该研究基于YOLOv5s提出一种改进的葡萄检测模型(MRWYOLOv5s)。首先,为了减少模型参数量,采用轻量型网络MobileNetv3作为特征提取网络,并在MobileNetv3的bneck结构中嵌入坐标注意力模块(coordinate attention,CA)以加强网络的特征提取能力;其次,在颈部网络中引入RepVGG Block,融合多分支特征提升模型的检测精度,并利用RepVGG Block的结构重参数化进一步加快模型的推理速度;最后,采用基于动态非单调聚焦机制的损失(wise intersection over union loss,WIoU Loss)作为边界框回归损失函数,加速网络收敛并提高模型的检测准确率。结果表明,改进的MRW-YOLOv5s模型参数量仅为7.56 M,在测试集上的平均精度均值(mean average precision,mAP)达到97.74%,相较于原YOLOv5s模型提升了2.32个百分点,平均每幅图片的检测时间为10.03 ms,比原YOLOv5s模型减少了6.13 ms。与主流的目标检测模型SSD、RetinaNet、YOLOv4、YOLOv7和YOLOX相比,MRW-YOLOv5s模型的mAP分别高出9.89、7.53、2.12、0.91、2.42个百分点,并且在模型参数量大小和检测速度方面有着很大的优势,该研究可为果园智能化、采摘机械化提供技术支持。展开更多
从甲骨文、竹简到泥字、雕版印刷再到影视教学和当下的互联网学习,无疑技术对于教育教学甚至文化传播都具有重要的影响,学习者数量、学习效果、教师与学生之间的关系、对于学习的认识与理解等等,均与技术的发展有着千丝万缕的关系,特别...从甲骨文、竹简到泥字、雕版印刷再到影视教学和当下的互联网学习,无疑技术对于教育教学甚至文化传播都具有重要的影响,学习者数量、学习效果、教师与学生之间的关系、对于学习的认识与理解等等,均与技术的发展有着千丝万缕的关系,特别是今天的互联网时代,它为我们创造了一个无时无刻、无论在哪里都可以开展学习活动的技术情境,我们的课程、课堂和学校也随着技术的发展而被赋予了新的内涵,所以对于技术支持的教与学的探讨在目前乃至今后的一段时间都显得尤为重要。JimSlotta是加拿大多伦多大学(the University of Toronto,UT)安大略教育研究所(the Ontario Institute for Studiesin Education,OISE)教授、认知科学家。他于2006年获得"加拿大教育与技术领域研究席位",并于同年获得"全球教育技术奖"。Slotta教授当前所从事的研究工作主要包括如何实现技术增强学习环境中"智能课堂(Smart Classrooms)"的新模型。他采用计算机领域的最新技术,如对等网络(P2P Networks)、多用户虚拟环境、探究软件和手机系统等,为复杂的课程结构和学生之间的交互模式提供支持。为了向教育者提供开放的资源和内容材料,以Slotta教授为首发起和组织了一个由研究人员和技术人员组成的国际团体,其目标是为虚拟学习环境的开源程序设计通用的技术框架、交换工具和材料。Slotta教授发表的作品涵盖范围很广,包括技术支持教与学环境下的机会、模式、技术、挑战和局限等。在Jim Slotta教授2008年10月对华南师大进行二次访问之际,我们就技术支持教与学的话题对他进行了采访。展开更多
This paper aims at the discussion of the origin and introduction and applications of euphemism from different aspects.It also deals with the violation of the Cooperative Principles of euphemism from the point of view ...This paper aims at the discussion of the origin and introduction and applications of euphemism from different aspects.It also deals with the violation of the Cooperative Principles of euphemism from the point of view of pragmatic study with the purpose of giving people pieces of advice on how to use euphemism wisely and effectively.展开更多
In this paper,we reviewed the various advanced technologies and methods that could help patients for measuring ad herence of patients.There exist intelligent technologies that are available for measuring medication ad...In this paper,we reviewed the various advanced technologies and methods that could help patients for measuring ad herence of patients.There exist intelligent technologies that are available for measuring medication adherence,including medication event monitoring system(MEMS@),smart blister packs,radio frequency identifcation(RFID)embedded smart drawers,and wisely aware RFID dosage(WARD)system,Utilization of these advanced technologies and systems have aided in enhancing the adherence to a greater extent.For example,MEMS@refers to the electronic cap that counts the number of bottles opened,but it can be employed only with bottles.Smart blisters are pharmaceutical packagings that possess the capability of monitoring when a pill or tablet is taken out of its packing.All those intelligent technologies can help in active monitoring of patients regarding adherence and capable of eradicating various medication errors due to which adherence is affected.展开更多
文摘Over the 30 years, since the Reform and Opening-up to the outside world, Chinese foreign trade has increased from 20.6 billion USD in 1978 to 2.17 trillion USD in 2007, up by 105 times, with an average annual growth of 17.4%.
文摘In our life, we can't avoid making mistakes. So some advice on how to correct them is very important and helpful to us.The people who care about you will give you some wise advice. When you are in trouble,good advice can always teach you how to solve it and do better.
文摘为了快速精准地识别复杂果园环境下的葡萄目标,该研究基于YOLOv5s提出一种改进的葡萄检测模型(MRWYOLOv5s)。首先,为了减少模型参数量,采用轻量型网络MobileNetv3作为特征提取网络,并在MobileNetv3的bneck结构中嵌入坐标注意力模块(coordinate attention,CA)以加强网络的特征提取能力;其次,在颈部网络中引入RepVGG Block,融合多分支特征提升模型的检测精度,并利用RepVGG Block的结构重参数化进一步加快模型的推理速度;最后,采用基于动态非单调聚焦机制的损失(wise intersection over union loss,WIoU Loss)作为边界框回归损失函数,加速网络收敛并提高模型的检测准确率。结果表明,改进的MRW-YOLOv5s模型参数量仅为7.56 M,在测试集上的平均精度均值(mean average precision,mAP)达到97.74%,相较于原YOLOv5s模型提升了2.32个百分点,平均每幅图片的检测时间为10.03 ms,比原YOLOv5s模型减少了6.13 ms。与主流的目标检测模型SSD、RetinaNet、YOLOv4、YOLOv7和YOLOX相比,MRW-YOLOv5s模型的mAP分别高出9.89、7.53、2.12、0.91、2.42个百分点,并且在模型参数量大小和检测速度方面有着很大的优势,该研究可为果园智能化、采摘机械化提供技术支持。
文摘从甲骨文、竹简到泥字、雕版印刷再到影视教学和当下的互联网学习,无疑技术对于教育教学甚至文化传播都具有重要的影响,学习者数量、学习效果、教师与学生之间的关系、对于学习的认识与理解等等,均与技术的发展有着千丝万缕的关系,特别是今天的互联网时代,它为我们创造了一个无时无刻、无论在哪里都可以开展学习活动的技术情境,我们的课程、课堂和学校也随着技术的发展而被赋予了新的内涵,所以对于技术支持的教与学的探讨在目前乃至今后的一段时间都显得尤为重要。JimSlotta是加拿大多伦多大学(the University of Toronto,UT)安大略教育研究所(the Ontario Institute for Studiesin Education,OISE)教授、认知科学家。他于2006年获得"加拿大教育与技术领域研究席位",并于同年获得"全球教育技术奖"。Slotta教授当前所从事的研究工作主要包括如何实现技术增强学习环境中"智能课堂(Smart Classrooms)"的新模型。他采用计算机领域的最新技术,如对等网络(P2P Networks)、多用户虚拟环境、探究软件和手机系统等,为复杂的课程结构和学生之间的交互模式提供支持。为了向教育者提供开放的资源和内容材料,以Slotta教授为首发起和组织了一个由研究人员和技术人员组成的国际团体,其目标是为虚拟学习环境的开源程序设计通用的技术框架、交换工具和材料。Slotta教授发表的作品涵盖范围很广,包括技术支持教与学环境下的机会、模式、技术、挑战和局限等。在Jim Slotta教授2008年10月对华南师大进行二次访问之际,我们就技术支持教与学的话题对他进行了采访。
文摘This paper aims at the discussion of the origin and introduction and applications of euphemism from different aspects.It also deals with the violation of the Cooperative Principles of euphemism from the point of view of pragmatic study with the purpose of giving people pieces of advice on how to use euphemism wisely and effectively.
文摘In this paper,we reviewed the various advanced technologies and methods that could help patients for measuring ad herence of patients.There exist intelligent technologies that are available for measuring medication adherence,including medication event monitoring system(MEMS@),smart blister packs,radio frequency identifcation(RFID)embedded smart drawers,and wisely aware RFID dosage(WARD)system,Utilization of these advanced technologies and systems have aided in enhancing the adherence to a greater extent.For example,MEMS@refers to the electronic cap that counts the number of bottles opened,but it can be employed only with bottles.Smart blisters are pharmaceutical packagings that possess the capability of monitoring when a pill or tablet is taken out of its packing.All those intelligent technologies can help in active monitoring of patients regarding adherence and capable of eradicating various medication errors due to which adherence is affected.
