高中生物数字化信息系统(digital information system, DIS)实验是指纳入高中生物实验项目的以传感器技术为基础的实验,具有实验精度高、实施效果好等特点,有利于培养学生的证据意识和创新思维、提高学生的科学论证能力和科学探究能力,...高中生物数字化信息系统(digital information system, DIS)实验是指纳入高中生物实验项目的以传感器技术为基础的实验,具有实验精度高、实施效果好等特点,有利于培养学生的证据意识和创新思维、提高学生的科学论证能力和科学探究能力,很受老师和学生欢迎。论证式探究(argument-driven inquiry, ADI)教学策略是一种将论证与探究相融合的教学策略,十分注重培养学生的科学论证能力以及质疑和辩驳能力。通过剖析高中生物DIS实验的特点及其教学理论基础,深入解读高中生物ADI教学策略的环节构成、核心要素、典型特征及理论内涵,进而阐明ADI教学策略在高中生物DIS实验教学中的独特应用优势,针对性地提出了实施高中生物DIS实验ADI教学的优化策略,以期助力一线生物教师在实际教学中有效运用ADI教学策略。展开更多
The damage distribution of the same type of aircraft in similar service environments should be similar. Based on this assumption, to perform the maintenance and repair of aircraft composite structures, the damage of c...The damage distribution of the same type of aircraft in similar service environments should be similar. Based on this assumption, to perform the maintenance and repair of aircraft composite structures, the damage of composite structures in a certain type of aircraft were investigated. The time-varying damage distribution model was established and verified based on the damage of a 16-aircraft fleet. The results show that the quantitative proportions of structural damage are 74% for skin delamination, 22% for stringer delamination and 3% for stringer-skin interface debonding. The amount of structural damages increases linearly with service time while the proportion of different damages does not change. As the service time increases, the geometric parameter distribution of damage for the same type of aircraft gradually converges, which can be approximated using the same function. There are certain differences in the proportion and geometric parameter distribution of damages among different components and locations, and the differences do not change over time.展开更多
Dear Colleagues,It is my distinct honor to serve as the Honorary Chief Editor of AMEM,an international open-access journal,dedicated to serve as a platform for international exchange,and the translation of research ou...Dear Colleagues,It is my distinct honor to serve as the Honorary Chief Editor of AMEM,an international open-access journal,dedicated to serve as a platform for international exchange,and the translation of research outcomes in the field of life sciences.AMEM strives to establish itself as a high-level international academic exchange platform that brings together scientific wisdom from around the world and offers a prestigious journal for presenting research findings,and disseminating state of the art knowledge in the vibrant fields of life sciences.展开更多
文摘The damage distribution of the same type of aircraft in similar service environments should be similar. Based on this assumption, to perform the maintenance and repair of aircraft composite structures, the damage of composite structures in a certain type of aircraft were investigated. The time-varying damage distribution model was established and verified based on the damage of a 16-aircraft fleet. The results show that the quantitative proportions of structural damage are 74% for skin delamination, 22% for stringer delamination and 3% for stringer-skin interface debonding. The amount of structural damages increases linearly with service time while the proportion of different damages does not change. As the service time increases, the geometric parameter distribution of damage for the same type of aircraft gradually converges, which can be approximated using the same function. There are certain differences in the proportion and geometric parameter distribution of damages among different components and locations, and the differences do not change over time.
文摘Dear Colleagues,It is my distinct honor to serve as the Honorary Chief Editor of AMEM,an international open-access journal,dedicated to serve as a platform for international exchange,and the translation of research outcomes in the field of life sciences.AMEM strives to establish itself as a high-level international academic exchange platform that brings together scientific wisdom from around the world and offers a prestigious journal for presenting research findings,and disseminating state of the art knowledge in the vibrant fields of life sciences.
