Autor: Khan, Z. A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A Study on the Effect of Human Laterality, Type of Computer and Noise on Operators’ Performance of a Data Entry Task
Autorzy:: Khan, Z. A.
Rizvi, S. A. H.
Powiązania:: https://bibliotekanauki.pl/articles/90760.pdf
Data publikacji:: 2009
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: equivalent noise level
motor-sidedness
visual display units
data entry task performance
Opis:: Effects of human laterality, type of computer and noise on computer operators’ performance of a data entry task were investigated. Seven right- and 7 left-motorsided male subjects performed the task on desktop and laptop computers in a sitting posture under varying noise levels. The mean number of characters entered per minute was statistically analysed. The right-motorsided operators entered more data than left-motorsided ones at each noise level. Operators performed better on desktop computers. Operators’ performance decreased when noise level increased from 82 to 92 dB(A) but it improved at 102 dB(A). Effects of laterality, type of computer and noise, and the interaction between laterality and noise were statistically significant. The interactions between laterality and type of computer, and type of computer and noise were statistically insignificant. Laterality was statistically significant at all noise levels and noise was statistically significant for right motor-sided operators only.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2009, 15, 1; 53-60
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:: A Study on the Effects of Human Age, Type of Computer and Noise on Operators’ Performance of a Data Entry Task
Autorzy:: Khan, Z. A.
Rizvi, S. A. H.
Powiązania:: https://bibliotekanauki.pl/articles/91125.pdf
Data publikacji:: 2010
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: equivalent noise level
age
visual display units
data entry task performance
Opis:: The effects of human age, type of computer, and noise on computer operators’ performance of a data entry task were investigated. Twenty male subjects aged 10–55 were assigned into 4 age groups each consisting of 5 persons. They performed the task for 15 min on desktop and laptop computers in a sitting posture under varying levels of noise. The mean number of characters entered per minute (MNCEPM) was statistically analyzed. Operators in the 16–25 age group achieved the highest rate of data entry at each level of noise investigated. Operators performed better on desktop than on laptop computers. Their performance decreased when noise level increased from 82 to 92 dB(A), but it improved at 102 dB(A). The effects of age and noise were statistically significant. However, the effects of the type of computer, the interactions between age and type of computer, age and noise level, and type of computer and noise were not found to be statistically significant.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2010, 16, 4; 455-463
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: A Study on the Combined Effect of Noise and Vibration on Operators’ Performance of a Readability Task in a Mobile Driving Environment
Autorzy:: Khan, I. A.
Mallick, Z.
Khan, Z. A.
Powiązania:: https://bibliotekanauki.pl/articles/89941.pdf
Data publikacji:: 2007
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: noise
equivalent acceleration of vibration
task performance
mobile environment
Opis:: This paper presents a study in which the main objective was to investigate the combined effect of noise and vibration on the performance of a readability task in a mobile driving environment. Subjects performed a readability task on a laptop computer in a sitting posture with their backs supported with a backrest under varying levels of noise and vibration. The data in terms of the mean number of characters read per minute were collected and statistically analyzed. Results showed that the individual effect of noise, vibration, and the operators’ gender as well as the interaction between gender and noise, and gender and vibration were statistically significant. However, the combined effect of noise and vibration was not found to be statistically significant. Results also indicated that gender was statistically significant at all levels of noise as well as vibration, and noise and vibration were statistically significant at both levels of gender.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2007, 13, 2; 127-136
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: A Study on the Combined Effect of Noise and Vibration on the Performance of a Readability Task in a Mobile Driving Environment by Operators of Different Ages
Autorzy:: Khan, I. A.
Mallick, Z.
Khan, Z. A.
Muzammil, M.
Powiązania:: https://bibliotekanauki.pl/articles/91209.pdf
Data publikacji:: 2009
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: noise
equivalent acceleration of vibration
task performance
mobile environment
operator’s age
Opis:: This study investigated the combined effect of noise and vibration on the performance of a readability task in a mobile driving environment by operators of different ages. Subjects performed a readability task on a laptop computer in a sitting posture without their backs supported under varying levels of noise and vibration. Data in terms of a mean number of characters read per minute were collected and statistically analyzed. Results showed that the individual effects of noise, vibration, and operators’ age as well as the interaction between operators’ age and vibration were statistically significant. However, the combined effect of noise and vibration was not found to be statistically significant. Results also indicated that the operators’ age was statistically significant at all levels of vibration and vibration was statistically significant at all levels of operators’ age.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2009, 15, 3; 277-286
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Attributes of Occupational Injury Among Workers in the Chemical Industry and Safety Issues
Autorzy:: Khan, M. M. A.
Halim, Z. I.
Iqbal, M.
Powiązania:: https://bibliotekanauki.pl/articles/90576.pdf
Data publikacji:: 2006
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: attribute
occupational injury
workers
chemical industry
safety issues
uraz
przemysł chemiczny
zagrożenia zdrowia
Bangladesz
zagrożenia chemiczne
Opis:: Case-study research was carried out with a view to find the attributes of occupational injury among workers in the chemical industry and to enhance safety issues. Injury data were collected and processed in terms of different variables, such as age, gender, skills, type of hazard, etc. Pareto analysis was then applied to find a pattern of occupational injury among the workers. The study revealed that 79.52% of the injured workers were in the 40–59 age group; 57.14% of accidents occurred during the 1st shift; 73.26% of accidents caused injury to hands, feet, chest to thigh, arms and eyes; and 70.93% of injuries were caused by pumps, carrying and lifting, vehicles, pipelines, valves, and grinding. Surprisingly, no one was injured in the group of temporary workers. The paper also provides specific suggestions followed by some action plans.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2006, 12, 3; 327-341
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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