ETA物理教学法在高中物理教学中的应用——以“磁场对通电导线的作用力”教学为例

ETA物理教学法作为紧密联系认知规律的教学方法,可以有效训练学生的科学认知能力.依据ETA物理教学法进行教学,能够规避许多高中生在物理学习中可能出现的问题,借此,将“磁场对通电导线作用力”建立在ETA物理教学模型下进行论述,以期发展高中生的物理核心素养.     

Comparative Studies of Rare-Earth Element Y-Doped In2O3 by First-Principles Calculations

In2O3 doped with rare-earth element yttrium shows improved optoelectronic efficiency. Here the structural properties and electronic structures of Y-doped In2O3 are investigated by using a first-principles approximation. For In1.9375 Y0.062503, the d site is the more stable site. The Y^3＋ interstitial has a low formation energy and is a possible interstitial defect, which would lead to shallow and abundant donors without sacrificing optical transparency. Since defects are universally distributed in In2O3 or doped In2O3, complex defect configurations are also calculated.     

Increasing Superplasticity and Strong Dynamic Behaviour of Zr--Cu--Ni--Al Bulk Metallic Glass

The plasticity and the dynamic fragility of bulk metallic glass of a Zr62 CuxsNiloAllo alloy are studied by three- point beam bending methods. We find that the alloy behaves super plastic not only at room temperature, but also at high temperatures. More importantly, it is found that the superplasticity increases with increasing temperature. In addition, the dynamic fragility parameter m for the supercooled liquid of this alloy is measured to be 34.87 and the supercooled liquid of Zr62 CuxsNixoAlxo alloy behaves as a strong liquid.     

基于学习进阶理论指向物理概念建模教学的研究与实践——以“向心力”为例

为了贯彻“立德树人”的教育目标,《普通高中物理课程标准(2017年版)》明确提出物理学科核心素养.在“科学思维”这一素养中,首次将模型建构作为物理学习的关键能力.将学习进阶理论与建模教学整合规划,以人教版高中物理必修二第六章第2节“向心力”为例,构建物理概念的建模教学,旨在为一线教师提供教学参考.