Video-Based Information Systems in Academic Library Media Centers

published or submitted for publicatio

Integration of altitude and airspeed information into a primary flight display via moving-tape formats

A ground-based aircraft simulation study was conducted to determine the effect on pilot performance of replacing the electromechanical altimeter and airspeed indicators with electronically generated representations integrated into the primary flight display via moving-tape (linear moving scale) formats. Several key factors relating to moving-tape formats were examined during the study: tape centering, secondary (trend) information, and tape orientation. The factor of centering refers to whether the tape was centered about the actual airspeed or altitude or about some defined reference value. Tape orientation refers to whether the values represented are arranged in either descending or ascending order. Six pilots participated in this study, with each subject performing 18 runs along a single, known flight profile. Subjective results indicated that the moving-tape formats were generally better than that of the conventional instruments. They also indicated that an actual-centered fixed pointer was preferred to a reference-centered pointer. Performance data for a visual secondary task showed that formats not containing trend information produced better performance; however, no difference was noted in airspeed tracking or altitude tracking performance. Regarding tape orientation, subjective comments indicated that there was lower work load and better performance when the airspeed tape had the high numbers at the top

Teachers' thinking about their relations with their pupils

A variety of research suggests that 'good' teacher-pupil relationships facilitate pupil learning, pupil progress, teacher control, teacher effectiveness and. professional satisfaction. Studies of teaching styles have highlighted improved pedagogic competence from relational interaction. Indeed, competency in. relationships is sometimes cited as being an element in 'good' teaching. However, despite the degree of interest, enthusiasm and research concerning relationships in teaching, there remain gaps in our knowledge: Do teachers think in terms of relationships when interacting with pupils? If they do, how do teachers conceptualise a relationship? How are relationships conveyed and established? What benefits derive from using relationships? This study uses an interview technique to discover whether teachers actually think in terms of relationships when discussing their work. In particular, to ascertain whether practising teachers, when given the opportunity, spontaneously us the term 'relationships' when describing interaction with pupils i.e. whether relationships are a prominent or salient feature of their work. From a teaching perspective, it is useful to discover the examples of teacher-pupil relationships described, including practical features involved in their formation and practical benefits from their use. If teachers do think relationships with pupils are a salient feature of their work, their descriptions, involving practical examples, may reveal items of skill which student or probationary teachers desire to know. The descriptive categories may be useful for teacher trainers who wish to emphasise teaching as a 'craft', or those who wish to reduce the apparent gap-discontinuity which is believed to exist between training courses and the practice of teaching

Integration of altitude and airspeed information into a primary flight display via moving-tape formats: Evaluation during random tracking task

A ground-based aircraft simulation study was conducted to determine the effects on pilot preference and performance of integrating airspeed and altitude information into an advanced electronic primary flight display via moving-tape (linear moving scale) formats. Several key issues relating to the implementation of moving-tape formats were examined in this study: tape centering, tape orientation, and trend information. The factor of centering refers to whether the tape was centered about the actual airspeed or altitude or about some other defined reference value. Tape orientation refers to whether the represented values are arranged in descending or ascending order. Two pilots participated in this study, with each performing 32 runs along seemingly random, previously unknown flight profiles. The data taken, analyzed, and presented consisted of path performance parameters, pilot-control inputs, and electrical brain response measurements

Effects of combining vertical and horizontal information into a primary flight display

A ground-based aircraft simulation study was conducted to determine the effects of combining vertical and horizontal flight information into a single display. Two display configurations were used in this study. The first configuration consisted of a Primary Flight Display (PFD) format and a Horizontal Situation Display (HSD) with the PFD displayed conventionally above the HSD. For the second display configuration, the HSD format was combined with the PFD format. Four subjects participated in this study. Data were collected on performance parameters, pilot-control inputs, auditory evoked response parameters (AEP), oculometer measurements (eye-scan), and heart rate. Subjective pilot opinion was gathered through questionnaire data and scorings for both the Subjective Workload Assessment Technique (SWAT) and the NASA Task Load Index (NASA-TLX). The results of this study showed that, from a performance and subjective standpoint, the combined configuration was better than the separate configuration. Additionally, both the eye-transition and eye-dwell times for the separate HSD were notably higher than expected, with a 46% increase in available visual time when going from double to single display configuration

Debt Relief for the Poorer Developing Countries

developing countries, debt relie

Alien Registration- Abbott, George E. (Presque Isle, Aroostook County)

https://digitalmaine.com/alien_docs/34400/thumbnail.jp

George Abbott Hall to John Kean, August 26, 1789

George Abbott Hall wrote from Charleston to John Kean, addressed to Beaufort, SC. He sent an enclosure that he had received previously with directions to forward it with all possible dispatch. The enclosed document is no longer with the letter. The subject written on the outside of the letter was On Public Service .https://digitalcommons.kean.edu/lhc_1780s/1298/thumbnail.jp

Adelai : A Little Mexican Serenade

https://digitalcommons.library.umaine.edu/mmb-vp/1036/thumbnail.jp