Temat: aiming - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effects of Hand Posture, Breathing Type, Arm Posture and Body Posture on Hand Errors
Autorzy:: Lee, T. H.
Cheng, T. S.
Powiązania:: https://bibliotekanauki.pl/articles/90970.pdf
Data publikacji:: 2012
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: aiming
fine manipulation
hand tremor
pointing
Opis:: This study consisted of 2 experiments. Experiment 1 examined the effects of hand posture, arm posture and body posture on hand error, while experiment 2 examined the effects of hand posture, breathing type and body posture on hand error. This study showed that more hand errors occurred in the nondominant hand, extended arm, normal breathing and standing compared with errors in the dominant hand, flexed arm, inspire–hold and sitting, respectively. This study advised people to use their dominant hand, flex their arm, inspire and hold the breath and support their body while performing fine manipulation tasks. Finally, hand error varied dramatically across the participants, indicating the need to screen individuals for fine manual manipulation tasks.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2012, 18, 3; 393-398
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Golf Putting: Equivalent Performance with Ball Focused and Target Focused Aiming
Autorzy:: Moffat, David
Carson, Howie J.
Collins, Dave
Powiązania:: https://bibliotekanauki.pl/articles/1030573.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:: coaching
high-level golfers
intention
visual aiming
Opis:: This study addressed several inconsistencies and omissions in golf putting research by testing the performance impact of target focused aiming. Participants were 22 high-level and experienced golfers, currently using ball focused aiming. Participants were allocated in a quasi-random fashion to ball or target focused aiming conditions and each performed 32 putts under competitive conditions on a natural putting green from a distance of 8 ft. Data were recorded as putts holed or missed and further categorised into putts missed long, short, left, right, short left, short right, long left and long right. There was no significant difference between conditions (p > 0.05) for any of the categories tested, despite participants’ prior extreme familiarity and expressed preference for the ball focused technique. These results notwithstanding, we discuss possible explanations for target focused benefits, including the role of vision during putting, the impact of intention during execution and possible expectancy effects. While these findings hold potential implications for golf coaching, more research is clearly required to further understand causative mechanisms and to clarify the existence and nature of advantage for one technique over the other. Based on this study, we recommend that high-level and experienced golfers might try target focused aiming as a ‘cost-free’ experiment.
Źródło:: Central European Journal of Sport Sciences and Medicine; 2018, 23, 3; 5-16
2300-9705
2353-2807
Pojawia się w:: Central European Journal of Sport Sciences and Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Importance of cut - off line in automotive headlamps aiming
Autorzy:: Targosiński, T.
Powiązania:: https://bibliotekanauki.pl/articles/246827.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: headlights aiming
cut-off line
road illumination
glare protection
Opis:: The basic element of passing beam headlights is the "cut-off line". It was intended in European beam pattern as tool for correct adjustment of passing beam according good road illumination distance and oncoming drive eyes protection of excessive glare. Cut-off line was established on the one hand as a natural part separating bright and dark area in the conventional passing beam, on the other assigned its essential function of the visual aiming of headlights. It is used in laboratory practices as well as in vehicles factories and in services and technical periodical inspection. The most important is that cut-off line was defined visually and subjectively over 50 years ago. But needed aiming precision according guaranteed road visibility and glare protection is much higher than historically moulded practical cut-off performance. In paper is analysed definition of cut-off line, their performance and meaning, historical evolution and influence for technical development of headlamps design. Also, mathematical approximation and modelling of cut-off line visual perception is described. The important is analysis of practical examples of real cut-off lines, their connections with significant beam pattern characteristics and possible ambiguous aiming during type approval and during vehicle exploitation. Also, analyzed are perspectives of future cut-off line use, development or - may be replacement by other means better serving this very important task to guarantee correct adjustment beam pattern according good road illumination and protection against excessive glare.
Źródło:: Journal of KONES; 2012, 19, 3; 469-476
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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