40,685 research outputs found
The Functions and Practices of a Television Network
An Iterative Learning Control disturbance rejection approach is considered and it is shown that iteration variant learning filters can asymptotically give the controlled variable zero error and zero variance. Convergence is achieved with the assumption that the relative model error is less than one. The transient response of the suggested ILC algorithm is also discussed using a simulation example
Student Expectations and Preferences of Distance Course Delivery Methods
Students in five courses offered with a variety of distance and on-campus delivery methods were surveyed to determine student expectations and post-evaluation of courses; student demographics; and student experiences and preferences with technology and course delivery methods. The response group was primarily degree seeking upperclassmen, taking a required course, equally split by gender and by delivery location. All students preferred a live class delivery method but videotape delivery appeared to have a higher student satisfaction level than satellite. On-campus students found simultaneous satellite delivery distracting but not detrimental to their learning experience. Students consistently misjudged the content and workload of courses.Teaching/Communication/Extension/Profession,
Market scenarios and alternative administrative frameworks for US educational satellite systems
Costs and benefits of developing an operational educational satellite system in the U.S. are analyzed. Scenarios are developed for each educational submarket and satellite channel and ground terminal requirements for a large-scale educational telecommunications system are estimated. Alternative organizational frameworks for such a system are described
Quantifying subjective quality evaluations for mobile video watching in a semi-living lab context
This paper discusses results from an exploratory study in which Quality of Experience aspects related to mobile video watching were investigated in a semi-living lab setting. More specifically, we zoom in on usage patterns in a natural research context and on the subjective evaluation of high and low-resolution movie trailers that are transferred to a mobile device using two transmission protocols for video (i.e., real-time transport protocol and progressive download using HTTP). User feedback was collected by means of short questionnaires on the mobile device, combined with traditional pen and paper diaries. The subjective evaluations regarding the general technical quality, perceived distortion, fluentness of the video, and loading speed are studied and the influence of the transmission protocol and video resolution on these evaluations is analyzed. Multinomial logistic regression results in a model to estimate the subjective evaluations regarding the perceived distortion and loading speed based on objectively-measured parameters of the video session
Compendium of Applications Technology Satellite user experiments
The achievements of the user experiments performed with ATS satellites from 1967 to 1973 are summarized. Included are fixed and mobile point to point communications experiments involving voice, teletype and facsimile transmissions. Particular emphasis is given to the Alaska and Hawaii satellite communications experiments. The use of the ATS satellites for ranging and position fixing of ships and aircraft is also covered. The structure and operating characteristics of the various ATS satellite are briefly described
Media policy for ethnic and national minorities in Poland, the Czech Republic and Slovakia
This chapter describes legal, institutional and professional frameworks for media policy concerning national and ethnic minorities in Poland, the Czech Republic and Slovakia. It considers four models of minority media policy – the autonomous; anti-discrimination; minority protection and assimilation models – in an attempt to examine how minority access to the media can be facilitated through regulation. In particular, the author argues for greater emphasis to be placed on minority protection and anti-discrimination measures
Walking the talk : an investigation of the pedagogical practices and discourses of an international broadcasting organisation : a thesis presented in partial fulfilment of the requirements for the degree of Master of Education in Adult Education, Massey University, Manawatu, New Zealand
Increasingly our knowledge of the world around us comes from the media,
mediated by professional broadcasters. As the education and training of
broadcasters has progressively become associated with educational
institutions there has been more theorising about what broadcasters should
know and how they should be educated, however the actual educational
and training practices of broadcasting organisations remains under
researched and under theorised. This research looks at the educational
and training practices of an international broadcasting organisation and
how they are sustained by the organisational ethos through a series of
interviews with people directly involved in the organisation‟s training
practices and an examination of a selection of the organisation‟s
promotional and policy documents. From this comes a picture of an
organisation committed to excellence and also a vision of broadcasting as
an emancipatory activity. This commitment and vision is reflected in its inhouse
training practices and also its media development work. The
interviews with trainers, project managers, administrators and researchers
reveal broadcasters who are pragmatic idealists and reflective practitioners
and whose passion and commitment to the transformative powers of
education and training are undeniable
- …