X-射线粉末衍射仪(X-ray power diffractometer,XRPD)是一种非常重要的材料分析测试仪,它在许多学科和领域都有着广泛的的应用。目前在高校中,X-射线粉末衍射仪已经成为样品表征的必备仪器,其应用于科学研究的同时并逐步应用在实验教学...X-射线粉末衍射仪(X-ray power diffractometer,XRPD)是一种非常重要的材料分析测试仪,它在许多学科和领域都有着广泛的的应用。目前在高校中,X-射线粉末衍射仪已经成为样品表征的必备仪器,其应用于科学研究的同时并逐步应用在实验教学、课程改革和人才培养。该仪器在测试过程中对各种参数的设置对测试结果有很大的影响,本文以Al_2O_3粉末作为研究对象初步探究X-射线粉末衍射仪各种参数设置如电压、电流、扫描速度及扫描步长对其测试结果的影响并对各种参数进行优化。展开更多
A sensory substitution device （SSD） is a technology that translates information for one sensory modality, like vision, into information for use by another, like touch. Though SSDs have been in existence for over fou...A sensory substitution device （SSD） is a technology that translates information for one sensory modality, like vision, into information for use by another, like touch. Though SSDs have been in existence for over four decades, effective training techniques for their use are rarely discussed. In this paper, we compare three training strategies on a particular SSD known as the vOICe. These comparisons were conducted using a minimal but active search and localization task of luminescent discs. These studies show that an interactive training paradigm, which combines the efforts of two trainees at the same time in a tag-like game, is more effective than passive training at a computer console or active training involving search and localization of luminescent discs. This finding supports philosophical views of perception that take interaction with the environment seriously. In particular, we argue that these findings are in support of certain features of the extended mind view as proposed by Andy Clark （2008）. In particular, the study suggests that when environmental conditions are responsive to one＇s behavioral activity, the activity itself is enhanced, as is predicted by the extended mind view.展开更多
Generative resources are mainly derived from the students(sometimes from the teachers),which is dynamically generated in the students'practice,self-inquiry,and cooperative communication.Gifted children refer to a ...Generative resources are mainly derived from the students(sometimes from the teachers),which is dynamically generated in the students'practice,self-inquiry,and cooperative communication.Gifted children refer to a group of children who have such characteristics as high IQ(intelligence quotient),strong creativity,and good personality.Their intelligence and capability have great potential for further development.As cognitive ability is one of the prominent characteristics of supernormal children,the lecturers can not only pay attention to teaching knowledge(facts teaching),but also need provide proper opportunities for them to develop their aggressiveness,creativities,and challenges when teaching these children.Because students are active in thinking,in the classroom,students often have some unexpected ideas,that is,the generation of the classroom,in the face of this situation,teachers should be how to do?A joke between students in the class,sparked the interest of a classmate,and then under the teachers'guidance,they invented a chemistry experiment instrumentΩtype pipe,illustrated the importance of the teachers focus on creating teaching.展开更多
文摘X-射线粉末衍射仪(X-ray power diffractometer,XRPD)是一种非常重要的材料分析测试仪,它在许多学科和领域都有着广泛的的应用。目前在高校中,X-射线粉末衍射仪已经成为样品表征的必备仪器,其应用于科学研究的同时并逐步应用在实验教学、课程改革和人才培养。该仪器在测试过程中对各种参数的设置对测试结果有很大的影响,本文以Al_2O_3粉末作为研究对象初步探究X-射线粉末衍射仪各种参数设置如电压、电流、扫描速度及扫描步长对其测试结果的影响并对各种参数进行优化。
文摘A sensory substitution device （SSD） is a technology that translates information for one sensory modality, like vision, into information for use by another, like touch. Though SSDs have been in existence for over four decades, effective training techniques for their use are rarely discussed. In this paper, we compare three training strategies on a particular SSD known as the vOICe. These comparisons were conducted using a minimal but active search and localization task of luminescent discs. These studies show that an interactive training paradigm, which combines the efforts of two trainees at the same time in a tag-like game, is more effective than passive training at a computer console or active training involving search and localization of luminescent discs. This finding supports philosophical views of perception that take interaction with the environment seriously. In particular, we argue that these findings are in support of certain features of the extended mind view as proposed by Andy Clark （2008）. In particular, the study suggests that when environmental conditions are responsive to one＇s behavioral activity, the activity itself is enhanced, as is predicted by the extended mind view.
文摘Generative resources are mainly derived from the students(sometimes from the teachers),which is dynamically generated in the students'practice,self-inquiry,and cooperative communication.Gifted children refer to a group of children who have such characteristics as high IQ(intelligence quotient),strong creativity,and good personality.Their intelligence and capability have great potential for further development.As cognitive ability is one of the prominent characteristics of supernormal children,the lecturers can not only pay attention to teaching knowledge(facts teaching),but also need provide proper opportunities for them to develop their aggressiveness,creativities,and challenges when teaching these children.Because students are active in thinking,in the classroom,students often have some unexpected ideas,that is,the generation of the classroom,in the face of this situation,teachers should be how to do?A joke between students in the class,sparked the interest of a classmate,and then under the teachers'guidance,they invented a chemistry experiment instrumentΩtype pipe,illustrated the importance of the teachers focus on creating teaching.
