基于云课堂的混合式学习在医学影像技术课程教育中的应用——以《盆部影像检查技术》为例     

胡蓓蓓  张益兰 《教育教学论坛》2019,(21):199-200

随着"互联网+教育"的发展,设计和开展高职院校混合式教学势在必行。本文以高职3年制医学影像技术专业核心课程《盆部影像检查技术》为例,设计和实施了基于云课堂的混合式教学方案,并对教学效果进行了分析和评价。  相似文献   

光电器件光谱响应特性的实验研究     

杜玉杰  纪延俊  满丰全 《实验技术与管理》2006,23(12):67-69

设计了一套测试光电器件光谱响应的实验装置，编制了测试实验软件，利用泼装置对二代像增强器的光谱响应进行了测试，给出了测试曲线及有关性能参数，并对其实验误差进行了分析。  相似文献   

基于虚拟仿真教学平台的医学影像检查技术课程建设     

谭欢  吕发金  郁仁强  张志伟  周旸 《教育教学论坛》2020,(18):294-295

医学影像检查技术是医学影像技术学专业的核心课程,具有较强的操作性和实践性,而实验教学一直是医学影像检查技术课程的教学瓶颈。建设基于虚拟仿真教学平台的医学影像检查技术课程,可以增加学生训练操作机会,提高学习效率,充分发挥虚拟仿真技术的优势,有利于培养高素质医学人才。  相似文献   

CPLD在超声波探伤仪设计中的应用     

宋建萍 《南通职业大学学报》2004,18(2):30-32

简要介绍超声波探伤仪。以主机控制单元为例，从器件的选择、源文件设计、器件实现过程介绍CPLD技术，最后给出CPLD器件的应用结论。  相似文献   

Transforming clinical imaging and 3D data for virtual reality learning objects: HTML5 and mobile devices implementation     

Robert B. Trelease  Gary L. Nieder 《Anatomical sciences education》2013,6(4):263-270

Web deployable anatomical simulations or “virtual reality learning objects” can easily be produced with QuickTime VR software, but their use for online and mobile learning is being limited by the declining support for web browser plug‐ins for personal computers and unavailability on popular mobile devices like Apple iPad and Android tablets. This article describes complementary methods for creating comparable, multiplatform VR learning objects in the new HTML5 standard format, circumventing platform‐specific limitations imposed by the QuickTime VR multimedia file format. Multiple types or “dimensions” of anatomical information can be embedded in such learning objects, supporting different kinds of online learning applications, including interactive atlases, examination questions, and complex, multi‐structure presentations. Such HTML5 VR learning objects are usable on new mobile devices that do not support QuickTime VR, as well as on personal computers. Furthermore, HTML5 VR learning objects can be embedded in “ebook” document files, supporting the development of new types of electronic textbooks on mobile devices that are increasingly popular and self‐adopted for mobile learning. Anat Sci Educ 6: 263–270. © 2012 American Association of Anatomists.  相似文献   

基于二次成像指纹光学采集系统的设计     

吉紫娟  包佳祺  靳海芹 《湖北第二师范学院学报》2013,(8):71-72

本文在查阅相关专利的基础上,模拟了二次成像非共轴光学采集系统,该系统可校正与光轴成倾斜物面所引起的畸变,可使仪器体积小,重量轻,成本低,便于批量生产。经过优化后,可使指纹采集系统的畸变控制在0.2%以内,满足指纹识别的要求。  相似文献   

基于RD域分块的改进距离徙动成像算法     

徐海胜  宋红军  华斌  袁志辉 《中国科学院大学学报》2011,28(4):498-504

研究了二维频域成像算法,提出一种基于RD域分块的改进距离徙动成像算法,并将该算法与近似算法和一般逆变标算法进行了点阵目标仿真和运算效率比较.当测绘带较宽且距离徙动较大时,该算法聚焦性能优于近似算法和一般逆变标算法.通过比较还可看出该算法运算效率高于逆变标算法.最后用实测数据仿真验证了该算法是可行的.  相似文献   

Through-wall radar imaging using UWB noise waveforms     

Ram M. Narayanan 《Journal of The Franklin Institute》2008,345(6):659-678

This paper examines the results of our research on the use of ultrawideband noise waveforms for imaging objects behind walls. The advantages of using thermally generated noise as a probing signal are introduced. The technique of heterodyne correlation used to inject coherence in the random noise probing signal and to collapse the wideband reflected signal into a single frequency are presented. Central to successful imaging through building walls is the characterization of the wideband propagation properties of wall materials and these are discussed. The basic concepts of synthetic aperture radar image formation using noise waveforms and the unique problems associated with the random nature of the transmit waveform are analyzed. We also address issues related to locating, detection, and tracking humans behind walls, using new tools for human activity characterization, namely the Hilbert-Huang Transform approach. The results indicate that noise radar technology combined with modern signal processing approaches is indeed a viable technique for covert high-resolution imaging of obscured stationary and moving targets.  相似文献   

Making Cognitive Neuroscience Educationally Relevant: Creating Bidirectional Collaborations Between Educational Psychology and Cognitive Neuroscience   总被引：1，自引：0，他引：1  

Virginia W. Berninger  David Corina 《Educational Psychology Review》1998,10(3):343-354

Not only should educational psychologists keep abreast of developments in the rapidly evolving field of brain science, but also they should contribute their knowledge of higher cognitive functioning and instructional interventions to this field. Linking imaging studies with instructional studies may shed light on causal mechanisms in brain function. The importance and challenges of studying the brain at different levels of analysis are discussed and illustrated with examples from the reading literature and the deafness literature.  相似文献   

评估普通人群肝脂肪变性磁共振成像定量方法的可行性     

胡斌  张杰  陈静静  李晓飞  徐文坚 《实验室研究与探索》2021,(1):45-48,63

为了探讨采用3T西门子MRI LiverLab评估普通人群志愿者肝脏脂肪含量的可行性,招募了60名志愿者,其中双回波Dixon技术预测肝脂肪变性的患病率为51.7％(31/60),多回波Dixon和多回波HISTO技术测量的平均肝脏质子密度脂肪分数分别为(9.1±1.9)％和(9.3±2.3)％,测量结果在统计学上没有...  相似文献