Construction of the Computer Network Courses in College Physical Education Distance Video Teaching

Web-based remote education mainly depends on computer network and multime-dia technology supplemented with geographically dispersed teachers and stu-dents, making teachers and students carry out teaching information interaction through the Internet. Compared with other disciplines, remote education is rarely applied in Physical Education (PE) discipline. However, PE discipline is a bilat-eral teaching activity, featured with strong practicalness and participation. Thus, remote PE teaching can make full use of teaching resources, improve the efficien-cy of teaching management, and more effectively complete PE teaching activities. This paper first introduces the research background, carries out applied analysis of key technologies, such as WEB technology, streaming media technology and database technology, designs the overall structure model and functional module of the system, and then completes design and development of remote network PE teaching platform in colleges and universities.

Download Full-text

The Instructional SEM Laboratory at Iowa State University

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100164441 ◽

1996 ◽

Vol 54 ◽

pp. 396-397

Author(s):

L. S. Chumbley ◽

M. Meyer ◽

K. Fredrickson ◽

F.C. Laabs

Keyword(s):

Materials Science ◽

Computer Network ◽

Energy Dispersive Spectrometer ◽

Computer Control ◽

State University ◽

Iowa State University ◽

Internet Server ◽

Schematic Layout ◽

Hands On ◽

Improve Instruction

The Materials Science Department at Iowa State University has developed a laboratory designed to improve instruction in the use of the scanning electron microscope (SEM). The laboratory makes use of a computer network and a series of remote workstations in a classroom setting to provide students with increased hands-on access to the SEM. The laboratory has also been equipped such that distance learning via the internet can be achieved.A view of the laboratory is shown in Figure 1. The laboratory consists of a JEOL 6100 SEM, a Macintosh Quadra computer that acts as a server for the network and controls the energy dispersive spectrometer (EDS), four Macintosh computers that act as remote workstations, and a fifth Macintosh that acts as an internet server. A schematic layout of the classroom is shown in Figure 2. The workstations are connected directly to the SEM to allow joystick and computer control of the microscope. An ethernet connection between the Quadra and the workstations allows students seated there to operate the EDS. Control of the microscope and joystick is passed between the workstations by a switch-box assembly that resides at the microscope console. When the switch-box assembly is activated a direct serial line is established between the specified workstation and the microscope via the SEM’s RS-232.

Download Full-text