浅谈电子类专业＂C程序设计＂课程教学

“C程序设计”是电子类专业本科生的一门重要的必修课程,本文针对“C程序设计”课程教学中存在的问题,笔者根据多年的教学实践,结合该课程及电子类专业特点,从激发学习兴趣、采用现代教学模式、重视实践教学以及调整教学内容等方面,进行了若干有益探索。     

基于LD3320语音遥控器的设计与实现

自然语音作为人机交互具有广泛的应用前景。介绍了基于非特定人语音芯片LD3320的语音遥控器结构和实现方法。该语音遥控器利用STC89C52单片机作为主控器,控制LD3320对语音识别与处理,然后根据语音指令产生相应红外脉冲序列,替代按键式红外遥控器,实现对电器的语音遥控。     

浅谈面向应用型人才培养的单片机课程的改革

北部湾的快速发展需要大量应用型人才,而传统教育方式难以满足企业对单片机人才的需求.针对该难题,提出明确单片机地位、科学选型、有针对性加强预备知识、教学内容分层、通过网络项目超市加强实践环节的解决思路.实践表明,根据单片机课程特点和学生实际情况开展教学改革,能够提高学生的学习效率,更好的培养应用型人才.     

微案例在经济法教学中的大作用

微案例具有体量小、即时性、易理解性、简便化等特点,非常适合于单个知识点的讲解,通过分析微案例在经济法教学中的作用、来源、应用环节等问题,得出案例虽微,但在提高教学的有效性上有不可小觑的作用。     

Local synthesis of carbon nanotubes for direct integration in Si microsystems - design considerations

The integration of nanomaterials such as carbon nanotubes （CNTs） into microsystems is highly desirable, in order to make use of the unique nanomaterial properties in real devices. However, the CNTtomicrosystem integration is challenging to implement in a manufacturable, cost effective industrial process. This paper presents our work towards a process for making complete, integrated CMOS / MEMS systems with integrated CNT. We demonstrate the feasibility of the process, using roomtemperature process ing, lowcost equipment and consumables, and electrical control with automation possibilities. CNTs are directly integrated at the desired positions in the Si microsystem, forming closed Si / CNT / Si circuits. We explore different designs with the aim to obtain uniform and welldefined CNT synthesis conditions, and show that simplified designs can perform comparably to more complex ones. The Si / CNT / Si circuits obtained can show rectifying （Schottky like） or nearohmic behavior. Gas sensing possibilities are demonstrated, indicating the possibility of monitoring aging/ fermenting of food. Functionalization of CNTs is demon strated, using thermal evaporation of Sn and Pd, opening for selective and sensitive sensors for various gases and ana lytes. Detailed microscopic characterization of the obtained CNTs are presented.     

Wafer-level SLID bonding for MEMS encapsulation

Hermetic packaging is often an essential requirement to enable proper functionality throughout the device＇s lifetime and ensure the optimal performance of a micro electronic mechanical system （MEMS） device. Solid-liquid interdiffusion （SLID） bonding is a novel and attractive way to encapsulate MEMS devices at a wafer level. SLID bonding utilizes a low-melting-point metal to reduce the bonding process temperature; and metallic seal rings take out less of the valuable surface area and have a lower gas permeability compared to polymer or glass- based sealing materials. In addition, ductile metals can adopt mechanical and thermo-mechanical stresses during their service lifetime, which improves their reliability. In this study, the principles of Au-Sn and Cu-Sn SLID bonding are presented, which are meant to be used for wafer-level hermetic sealing of MEMS resonators. Seal rings in 15.24 cm silicon wafers were bonded at a width of 60 gin, electroplated, and used with Au-Sn and Cu-Sn layer structures. The wafer bonding temperature varied between 300 ℃ and 350 ℃, and the bonding force was 3.5 kN under the ambient pressure, that is, it was less than 0.1 Pa. A shear test was used to compare the mechanical properties of the interconnections between both material systems, in addition, important factors pertaining to bond ring design are discussed according to their effects on the failure mechanisms. The results show that the design ofmetal structures can significantly affect the reliability of bond rings.     

浅议创新生态系统的微观构建机制--研究现状评述及可能路径

近期从微观层次对创新生态系统的研究没有摆脱原有的环境视角(静态)和工程导向(动态)的束缚。通过对研究对象、本质特征和结构、动机和实现机制的重新界定,为该领域研究向"灰箱"研究方法的转变提供可能性的路径。     

融合微课的C语言程序设计翻转课堂的研究与实践

文章介绍了翻转课堂的本质特点和优势,指出了实施翻转课堂应具备的条件,给出了实施翻转课堂的步骤和课堂组织形式:课前学生通过教师制作的微课和测试题自主完成知识传授的过程;课上教师采用项目驱动法、分组教学法和不完全翻转法来组织课堂活动,引导学生完成知识内化的过程。翻转课堂法是一种自学辅导式的教学模式,实现了以学生为主的教学过程,能够提高学生自主学习的能力,利于学生形成终身学习的习惯,利于形成学习型社会的信息化支撑服务体系。     

基于微课的《环境监测》教学改革探索与实践

随着网络通信技术日新月异的发展,微课应运而生,并凭借其短小精悍的特点有效地解决了学习者的需求。这种灵活的教学新手段对推动高校课程传统教学方式的改革具有积极意义。本文基于《环境监测》传统课程教学中存在的实验仪器和学时不足等问题,分析了将微课引入该课程的现实意义,并从微课的整体设计、制作、实践及改进方向等方面探索了微课在该课程教学改革中的应用。     

“微时代”高校思想政治教育工作新形势

“微时代”,微博、微信成为大学生主要的社交媒体,给在普通高等院校从事思想政治教育的工作者带来了全新的机遇和挑战。为了切实保障大学生思想政治教育工作取得实效,普通高等院校思想政治教育工作者必需要做到与时俱进,认真分析“微时代”背景下的在校大学生思想政治教育工作将面临的新态势,积极、客观、认真地探索利用微博、微信等新兴媒介在“微时代”背景下正确且高效地做好学生思想政治教育工作的方法与途径。