解读初中英语读写整合RULER模式的内涵和具体实施要点。指出初中英语读写整合RULER模式是Read、Use、Learn、Edit、Refine五个词的首字母缩写,是一种基于学科实践的读写整合模式,能够帮助教师整合性和创造性地用好教材文本,消除学生的...解读初中英语读写整合RULER模式的内涵和具体实施要点。指出初中英语读写整合RULER模式是Read、Use、Learn、Edit、Refine五个词的首字母缩写,是一种基于学科实践的读写整合模式,能够帮助教师整合性和创造性地用好教材文本,消除学生的读写困惑,提升他们的读写能力。结合人教版初中《英语》八年级(下)Unit 9 Have you ever been to a museum?的读写整合教学,探究教师如何引领学生在真实任务中迁移结构化知识解决写作问题,并进行多维度评价,提升读写整合教学的实效性。展开更多
The subwavelength confinement feature of localized surface plasmon resonance（LSPR） allows plasmonic nanostructures to be functionalized as powerful platforms for detecting various molecular analytes as well as weak ...The subwavelength confinement feature of localized surface plasmon resonance（LSPR） allows plasmonic nanostructures to be functionalized as powerful platforms for detecting various molecular analytes as well as weak processes with nanoscale spatial resolution. One of the main goals of this field of research is to lower the absolute limit-of-detection（LOD）of LSPR-based sensors. This involves the improvement of（i） the figure-of-merit associated with structural parameters such as the size, shape and interparticle arrangement and,（ii） the spectral resolution. The latter involves advanced target identification and noise reduction techniques. By highlighting the strategies for improving the LOD, this review introduces the fundamental principles and recent progress of LSPR sensing based on different schemes including 1） refractometric sensing realized by observing target-induced refractive index changes, 2） plasmon rulers based on target-induced relative displacement of coupled plasmonic structures, 3） other relevant LSPR-based sensing schemes including chiral plasmonics,nanoparticle growth, and optomechanics. The ultimate LOD and the future trends of these LSPR-based sensing are also discussed.展开更多
A fast radial scanning probe system was constructed for the Keda Torus eXperiment(KTX)to measure the profiles of boundary plasma parameters such as floating potential,electron density,temperature,transport fluxes,etc....A fast radial scanning probe system was constructed for the Keda Torus eXperiment(KTX)to measure the profiles of boundary plasma parameters such as floating potential,electron density,temperature,transport fluxes,etc.The scanning probe system is driven by slow and fast motion mechanisms,corresponding to the stand-by movement of a stepping motor and the fast scanning movement of a high-torque servo-motor,respectively.In fast scanning,the scanner drives the probe radially up to 20 cm at a maximum velocity of 4.0 m s-1.A noncontact magnetic grating ruler with a high spatial resolution of 5μm is used for the displacement measurement.New scanning probe can reach the center of plasmas rapidly.The comparison of plasma floating potential profiles obtained by a fixed radial rake probe and the single scanning probe suggests that the high-speed scanning probe system is reliable for measuring edge plasma parameter profiles on the KTX device.展开更多
概述RULER模式的内涵及其在读写结合教学中的运用步骤。分析阅读教学与写作教学的关系及读写结合的意义。以人教版初中《英语》八年级(下)Unit 2 I’ll help to clean up the city parks的阅读文本为例,按照Read(品读文本)→Use(学以致...概述RULER模式的内涵及其在读写结合教学中的运用步骤。分析阅读教学与写作教学的关系及读写结合的意义。以人教版初中《英语》八年级(下)Unit 2 I’ll help to clean up the city parks的阅读文本为例,按照Read(品读文本)→Use(学以致用)→Learn(内化吸收)→Edit(编辑建构新文本)→Refine(提炼并最终呈现个性化文本)的步骤展开读写整合教学,有效提升学生的读写能力,真正落实英语学科核心素养。展开更多
文摘解读初中英语读写整合RULER模式的内涵和具体实施要点。指出初中英语读写整合RULER模式是Read、Use、Learn、Edit、Refine五个词的首字母缩写,是一种基于学科实践的读写整合模式,能够帮助教师整合性和创造性地用好教材文本,消除学生的读写困惑,提升他们的读写能力。结合人教版初中《英语》八年级(下)Unit 9 Have you ever been to a museum?的读写整合教学,探究教师如何引领学生在真实任务中迁移结构化知识解决写作问题,并进行多维度评价,提升读写整合教学的实效性。
基金Project supported by the National Key Basic Research Program(Grant No.2015CB932400)the National Key Research and Development Program of China(Grant Nos.2017YFA0205800 and 2017YFA0303504)the National Natural Science Foundation of China(Grant Nos.11674255 and 11674256)
文摘The subwavelength confinement feature of localized surface plasmon resonance（LSPR） allows plasmonic nanostructures to be functionalized as powerful platforms for detecting various molecular analytes as well as weak processes with nanoscale spatial resolution. One of the main goals of this field of research is to lower the absolute limit-of-detection（LOD）of LSPR-based sensors. This involves the improvement of（i） the figure-of-merit associated with structural parameters such as the size, shape and interparticle arrangement and,（ii） the spectral resolution. The latter involves advanced target identification and noise reduction techniques. By highlighting the strategies for improving the LOD, this review introduces the fundamental principles and recent progress of LSPR sensing based on different schemes including 1） refractometric sensing realized by observing target-induced refractive index changes, 2） plasmon rulers based on target-induced relative displacement of coupled plasmonic structures, 3） other relevant LSPR-based sensing schemes including chiral plasmonics,nanoparticle growth, and optomechanics. The ultimate LOD and the future trends of these LSPR-based sensing are also discussed.
基金supported by the National Magnetic Confinement Fusion Science Program of China(No.2017YFE0301700)National Natural Science Foundation of China(No.11635008).
文摘A fast radial scanning probe system was constructed for the Keda Torus eXperiment(KTX)to measure the profiles of boundary plasma parameters such as floating potential,electron density,temperature,transport fluxes,etc.The scanning probe system is driven by slow and fast motion mechanisms,corresponding to the stand-by movement of a stepping motor and the fast scanning movement of a high-torque servo-motor,respectively.In fast scanning,the scanner drives the probe radially up to 20 cm at a maximum velocity of 4.0 m s-1.A noncontact magnetic grating ruler with a high spatial resolution of 5μm is used for the displacement measurement.New scanning probe can reach the center of plasmas rapidly.The comparison of plasma floating potential profiles obtained by a fixed radial rake probe and the single scanning probe suggests that the high-speed scanning probe system is reliable for measuring edge plasma parameter profiles on the KTX device.
文摘概述RULER模式的内涵及其在读写结合教学中的运用步骤。分析阅读教学与写作教学的关系及读写结合的意义。以人教版初中《英语》八年级(下)Unit 2 I’ll help to clean up the city parks的阅读文本为例,按照Read(品读文本)→Use(学以致用)→Learn(内化吸收)→Edit(编辑建构新文本)→Refine(提炼并最终呈现个性化文本)的步骤展开读写整合教学,有效提升学生的读写能力,真正落实英语学科核心素养。
