思政融入“电工电子学”课程的研究和探索

针对电工电子学课程的教学特点和教学内容,设计和改进教学方法和手段,将思政元素有机地融入每堂课的教学,探索了该课程与思政教育的结合方式,挖掘本课程能够结合“思政”的切入点和教育资源,建立了全过程、全方位、有案例的“课程思政”体系。教学实践证明这些改革和探索达到了较好的教学效果。     

初探核心素养课改背景下的高中英语概要写作教学

在核心素养课改背景下的高中英语教学中,越来越重视对学生能力的培养,在高中英语写作教学中逐渐加强了对概要写作方式的重视程度,概要写作主要是指对文章内容进行简要概括,体现出文章中的大意和中心,进而使一些概括性较强的词或者是语句得以呈现。     

“互联网+”时代背景下“科研思路与方法”教学模式探讨

当前,国家对大学本科的教育愈发重视,提出了多种教改方案。面对“互联网+”快速发展的形势,文章分析了“互联网+”时代背景下“科研思路与方法”新型教学模式的优势以及如何高效率地构建。通过教师、学生、互联网三者协调配合以及师生的线上互动交流和讨论,可以充分调动学生独立思考、自主学习的积极性,同时增加了教学趣味性,提高了教学质量。     

Electro-mechanically controlled assembly of reconfigurable 3D mesostructures and electronic devices based on dielectric elastomer platforms

The manufacture of 3D mesostructures is receiving rapidly increasing attention, because of the fundamental significance and practical applications across wide-ranging areas. The recently developed approach of buckling-guided assembly allows deterministic formation of complex 3D mesostructures in a broad set of functional materials, with feature sizes spanning nanoscale to centimeter-scale. Previous studies mostly exploited mechanically controlled assembly platforms using elastomer substrates, which limits the capabilities to achieve on-demand local assembly, and to reshape assembled mesostructures into distinct 3D configurations. This work introduces a set of design concepts and assembly strategies to utilize dielectric elastomer actuators as powerful platforms for the electro-mechanically controlled 3D assembly. Capabilities of sequential, local loading with desired strain distributions allow access to precisely tailored 3D mesostructures that can be reshaped into distinct geometries, as demonstrated by experimental and theoretical studies of ∼30 examples. A reconfigurable inductive–capacitive radio-frequency circuit consisting of morphable 3D capacitors serves as an application example.     

Rapid phenotypic evolution with shallow genomic differentiation during early stages of high elevation adaptation in Eurasian Tree Sparrows

Known as the ‘third polar region’, the Qinghai-Tibet Plateau represents one of the harshest highland environments in the world and yet a number of organisms thrive there. Previous studies of birds, animals and humans have focused on well-differentiated populations in later stages of phenotypic divergence. The adaptive processes during the initial phase of highland adaptation remain poorly understood. We studied a human commensal, the Eurasian Tree Sparrow, which has followed human agriculture to the Qinghai-Tibet Plateau. Despite strong phenotypic differentiation at multiple levels, in particular in muscle-related phenotypes, highland and lowland populations show shallow genomic divergence and the colonization event occurred within the past few thousand years. In a one-month acclimation experiment investigating phenotypic plasticity, we exposed adult lowland tree sparrows to a hypoxic environment and did not observe muscle changes. Through population genetic analyses, we identified a signature of polygenic adaptation, whereby shifts in allele frequencies are spread across multiple loci, many of which are associated with muscle-related processes. Our results reveal a case of positive selection in which polygenic adaptation appears to drive rapid phenotypic evolution, shedding light on early stages of adaptive evolution to a novel environment.     

北京高校图书馆读者工作研讨会综述

2007年5月16-17日,由北京高校图工委和中国人民大学图书馆共同主办的北京高校图书馆读者工作研讨会在北京召开,28家高校图书馆的近百名代表参加了会议.……     

2023年全国科技馆运行情况分析

2023年全国科技馆持续提升服务能力和服务效能,总体建设、教育活动均表现出色,接待观众数量同比更创新高,增长率超90%。本文在2023年全国科技馆调查结果的基础上进行了分析研究,希望为科技馆的规划编制、决策部署、业务发展、项目研究提供参考,从而推动现代科技馆体系高质量发展。     

基于Java语言的宾馆安保系统的研究与设计

本文介绍使用面向对象的Java编程语言和数据库技术在Windows2000操作系统下开发应用软件,实现对宾馆安保系统上位机的主控界面设计。     

高校图书馆网络信息资源编目探讨

电子资源大量涌入图书馆,为高校图书馆的发展带来了契机,高校图书馆对电子资源的进一步加工整理促进了电子资源的有效利用.为所有可收集的信息资源建立科学、合理的编目系统,形成实体与虚拟两类信息资源集成的目录环境是高校图书馆组织整理资源的最高境界.本文就高校图书馆网络信息资源编目的内涵、方法等进行了探讨.参考文献5.     

《地母经》农业预言理论与应用探析

《地母经》农学预言是预测农业生产的农学预言体系,是我国农学思想的重要组成部分。本文分析了《地母经》农学预言的理论依据和应用价值,又以乙未年预言诗为例,解析了《地母经》的预言思想和预测功能,认为《地母经》农学预言结合中华传统哲学理念,通过对农业生产规律以及气象学、物候学等科学知识的掌握和运用,以预言诗的形式预测未来的气候和物候特点、指导农业生产。