An Experimental Study on Intellectual Concentration Influenced by Indoor Airflow
In order to improve intellectual concentration, few
studies have verified the effect of indoor airflow among the thermal
environment conditions, and the differences of the season in effects
have not been studied. In this study, in order to investigate the
influence of the airflow in winter on the intellectual concentration,
an evaluation experiment was conducted. In the previous study, an
effective airflow in summer was proposed and the improvement of
intellectual concentration by evaluation experiment was confirmed.
Therefore, an airflow profile in winter was proposed with reference
to the airflow profile in summer. The airflows are a combination
of a simulative airflow and mild airflow. An experiment has been
conducted to investigate the influence of a room airflow in winter on
intellectual concentration. As a result of comparison with no airflow
condition, no significant difference was found. Based on the results,
it is a future task to ask preliminary preference in advance and
to establish a mechanism that can provide controllable airflow for
each individual, taking into account the preference for airflow to be
different for each individual.
[1] Niemela, R, Hannula, M, Rautio, R, Reijula, K, R. Jorma: The effect of
air temperature on labor productivity in call centers-a case study, Energy
and Building, Vol. 34, pp. 759-764 (2002).
[2] Fang, L, Wyon, D. P., Clausen, G., Fanger, P. O.: Impact of indoor air
temperature and humidity in an office, Indoor Air, Vol. 14, pp. 74-81
(2004).
[3] Tham, K. W. : Effects of temperature and outdoor air supply rate on,
Indoor Air, Vol. 14, pp. 119-125 (2004). [4] Tsutumi, H., Tanabe, S., Harigaya, J., Nakamura, G., Iguchi, Y.: Effect
of humidity on human comfort and productivity after step, Building and
Environment, Vol. 42, pp. 4034-4042 (2007).
[5] Lan, L.,Wargocki, P., Lian, Z.: Quantitative measurement of productivity
loss due to thermal discomfort, Energy and Buildings, Vol. 43, pp.
1057-1062 (2011).
[6] Miyagi, K., Oishi, K., Uchiyama, K., Ishii, H., Shimoda, H.: Proposal
of intellectual productivity model based on work state transition, Proc.
the 15th International Conference on Human-Computer Interaction, pp.
335-343 (2013).
[7] Akira Shimaoka, Kazuhiko Machida, Takashi Kumae, Kazuo Sugawara,
Shigeyoshi Kurakake, Noriyoshi Okamura, and Junjirou Suemune:
Seasonal Variation of Basal Metabolism, Japanese Journal of
Biometeorology, Vol. 24, No. 1, pp.3-8 (1987) .(In Japanese)
[8] Zhai, Y., Zhang, H., Zhang, Y., Pasut, W., Arens, E., Meng, Q. :
Comfort under personally controlled air movement in warm and humid
environments, Building and Environment, Vol. 65, pp. 109-117 (2013).
[9] Morito Naomi, Nishimiya Hajime, Tsuzuki Kazuyo: Effects of Cool
Airflow on Sleep and Skin Temperatures: Comparison of Two Types of
Air-Conditioners by Human Subject Experiments, Transactions on the
Society of Heating, Air-Conditioning and Sanitary Engineers of Japan,
Vol. 35, No. 161, pp. 19-27 (2010). (In Japanese)
[10] Wyon, D. P. : The effects of indoor air quality on performance and
productivity, Indoor Air, pp. 92-101 (2004).
[11] Takashi Akimoto, Junpei Masuda, Naoe Nishihara, and Shin-ichi
Tanabe: Impacts of non-isothermal task conditioning system with
individual control on thermal comfort and productivity, Journal of
Environmental Engineering, AIJ, Vol. 69, No. 582, pp. 75-82 (2004).(In
Japanese)
[12] Shin-ichi Tanabe, Tatsuo Nobe, Sueng-jae Lee, and Hideo Nishimura:
Task/ambient conditioning system with isothermal air flow part 1 outline
and subject experiment of isothermal task unit, Proc. the Society of
Heating, Air-Conditioning Sanitary Engineers of Japan, pp.185-188
(2002).(In Japanese)
[13] Kimi Ueda, Shota Shimonaka, Hiroshi Shimoda, Hirotake Ishii,
Fumiaki Obayashi: Quantitative Evaluation of Intellectual Productivity
Considering Depth of Concentration, Proc. IEEE International
Conference on Systems, Man, and Cybernetics (SMC), pp.758-763
(2017).
[14] Kazune Miyagi, Kosuke Uchiyama, Fumiaki Obayashi, Mikio Iwakawa,
Hirotake Ishii, Hiroshi Shimoda: Proposal of Concentration index for
Evaluating Intellectual Productivity, Transactions on Human Interface
Society, Vol. 16, No. 1, pp. 19-28 (2014). (In Japanese)
[15] Akihiro Yamagishi, Tetsumi Hirokoshi, and Jin Ishii: Influence of
vertical air temperature distribution on the human skin temperature and
thermal sensation, Journal of Human and Living Environment, Vol. 5,
No. 1, pp. 23-34 (1997).(In Japanese)
[16] Shi-ichi Tanabe: Evaluation of thermal comfort in housing, Housing
Research Foundation Annual Report, pp.19-32 (1996). (In Japanese)
[17] Takeshi Nishimura and Kazunari Morimoto: Measurement method an
condition of CFF as a reflection of psychic fatigue -relating to prolonged
VDT work, Journal of Human Engineering, Vol. 22, No. 4, pp. 203-210
(1986).(In Japanese)
[18] Kunie Hashimoto: Psysiological meaning of the critical Flicker
frequency (CFF) and some problems in their measurement -theory and
practice of the Flicker test, Journal of Japan Society for Occupational
Health, Vol. 5, No. 9, pp. 563-578 (1963). (In Japanese)
[19] Working Group for Occupational Fatigue of Japan Society for
Occupational Health ed.: Handbook of Industrial Fatigue, Labor
Standards Committee, 1988. (In Japanese)
[20] Tomohide Kubo, Norihide Tachi, Hidemaro Takeyama, Takeshi Ebara,
Tatsuki Inoue, Toshimasa Takanishi, Yuko Arakomo, Gen-i Murasaki,
Toru Itani: Characteristic Patterns of Fatigue Feelings on Four
Simulated Consecutive Night Shifts by ”Jikaku-sho Shirabe”, Journal of
Occupational Health, Vol. 50, No. 5, pp. 133-144 (2008).(In Japanese)
[21] Yuji Tanaka, Sumi Nakata, Katsuyuki Yamazaki, Kazumi Takada, Yo
Miyata: Distribution of Type A behavior pattern in white collar workers:
Application of KG’s Type A Questionnaire for Type A survey, Journal
of Type A Behavior Pattern, Vol. 3, No.1, pp.68-73 (1992). (In Japanese)
[22] Kaneyoshi Ishihara, Akio Miyashita, Maki Inugami, Kazuhiko Fukuda,
Katsuo Yamazaki and Yo Miyata: The results of investigation by
the Japanese version of Morningness Eveningness Questionnaire, The
Japanese Journal of Psychology, Vol. 57, No. 2, pp. 87-91 (1986). (In
Japanese)
[23] Friedman, M. and Rosenman, R. H.: Association of specific overt
behavior pattern with blood and cardiovascular findings ; blood
cholesterol level, blood clotting time, incidence of arcus senilis, and
clinical coronary artery disease, Journal of the American Medical
Association, Vol. 169, No.12, pp. 1286-1296 (1959).
[1] Niemela, R, Hannula, M, Rautio, R, Reijula, K, R. Jorma: The effect of
air temperature on labor productivity in call centers-a case study, Energy
and Building, Vol. 34, pp. 759-764 (2002).
[2] Fang, L, Wyon, D. P., Clausen, G., Fanger, P. O.: Impact of indoor air
temperature and humidity in an office, Indoor Air, Vol. 14, pp. 74-81
(2004).
[3] Tham, K. W. : Effects of temperature and outdoor air supply rate on,
Indoor Air, Vol. 14, pp. 119-125 (2004). [4] Tsutumi, H., Tanabe, S., Harigaya, J., Nakamura, G., Iguchi, Y.: Effect
of humidity on human comfort and productivity after step, Building and
Environment, Vol. 42, pp. 4034-4042 (2007).
[5] Lan, L.,Wargocki, P., Lian, Z.: Quantitative measurement of productivity
loss due to thermal discomfort, Energy and Buildings, Vol. 43, pp.
1057-1062 (2011).
[6] Miyagi, K., Oishi, K., Uchiyama, K., Ishii, H., Shimoda, H.: Proposal
of intellectual productivity model based on work state transition, Proc.
the 15th International Conference on Human-Computer Interaction, pp.
335-343 (2013).
[7] Akira Shimaoka, Kazuhiko Machida, Takashi Kumae, Kazuo Sugawara,
Shigeyoshi Kurakake, Noriyoshi Okamura, and Junjirou Suemune:
Seasonal Variation of Basal Metabolism, Japanese Journal of
Biometeorology, Vol. 24, No. 1, pp.3-8 (1987) .(In Japanese)
[8] Zhai, Y., Zhang, H., Zhang, Y., Pasut, W., Arens, E., Meng, Q. :
Comfort under personally controlled air movement in warm and humid
environments, Building and Environment, Vol. 65, pp. 109-117 (2013).
[9] Morito Naomi, Nishimiya Hajime, Tsuzuki Kazuyo: Effects of Cool
Airflow on Sleep and Skin Temperatures: Comparison of Two Types of
Air-Conditioners by Human Subject Experiments, Transactions on the
Society of Heating, Air-Conditioning and Sanitary Engineers of Japan,
Vol. 35, No. 161, pp. 19-27 (2010). (In Japanese)
[10] Wyon, D. P. : The effects of indoor air quality on performance and
productivity, Indoor Air, pp. 92-101 (2004).
[11] Takashi Akimoto, Junpei Masuda, Naoe Nishihara, and Shin-ichi
Tanabe: Impacts of non-isothermal task conditioning system with
individual control on thermal comfort and productivity, Journal of
Environmental Engineering, AIJ, Vol. 69, No. 582, pp. 75-82 (2004).(In
Japanese)
[12] Shin-ichi Tanabe, Tatsuo Nobe, Sueng-jae Lee, and Hideo Nishimura:
Task/ambient conditioning system with isothermal air flow part 1 outline
and subject experiment of isothermal task unit, Proc. the Society of
Heating, Air-Conditioning Sanitary Engineers of Japan, pp.185-188
(2002).(In Japanese)
[13] Kimi Ueda, Shota Shimonaka, Hiroshi Shimoda, Hirotake Ishii,
Fumiaki Obayashi: Quantitative Evaluation of Intellectual Productivity
Considering Depth of Concentration, Proc. IEEE International
Conference on Systems, Man, and Cybernetics (SMC), pp.758-763
(2017).
[14] Kazune Miyagi, Kosuke Uchiyama, Fumiaki Obayashi, Mikio Iwakawa,
Hirotake Ishii, Hiroshi Shimoda: Proposal of Concentration index for
Evaluating Intellectual Productivity, Transactions on Human Interface
Society, Vol. 16, No. 1, pp. 19-28 (2014). (In Japanese)
[15] Akihiro Yamagishi, Tetsumi Hirokoshi, and Jin Ishii: Influence of
vertical air temperature distribution on the human skin temperature and
thermal sensation, Journal of Human and Living Environment, Vol. 5,
No. 1, pp. 23-34 (1997).(In Japanese)
[16] Shi-ichi Tanabe: Evaluation of thermal comfort in housing, Housing
Research Foundation Annual Report, pp.19-32 (1996). (In Japanese)
[17] Takeshi Nishimura and Kazunari Morimoto: Measurement method an
condition of CFF as a reflection of psychic fatigue -relating to prolonged
VDT work, Journal of Human Engineering, Vol. 22, No. 4, pp. 203-210
(1986).(In Japanese)
[18] Kunie Hashimoto: Psysiological meaning of the critical Flicker
frequency (CFF) and some problems in their measurement -theory and
practice of the Flicker test, Journal of Japan Society for Occupational
Health, Vol. 5, No. 9, pp. 563-578 (1963). (In Japanese)
[19] Working Group for Occupational Fatigue of Japan Society for
Occupational Health ed.: Handbook of Industrial Fatigue, Labor
Standards Committee, 1988. (In Japanese)
[20] Tomohide Kubo, Norihide Tachi, Hidemaro Takeyama, Takeshi Ebara,
Tatsuki Inoue, Toshimasa Takanishi, Yuko Arakomo, Gen-i Murasaki,
Toru Itani: Characteristic Patterns of Fatigue Feelings on Four
Simulated Consecutive Night Shifts by ”Jikaku-sho Shirabe”, Journal of
Occupational Health, Vol. 50, No. 5, pp. 133-144 (2008).(In Japanese)
[21] Yuji Tanaka, Sumi Nakata, Katsuyuki Yamazaki, Kazumi Takada, Yo
Miyata: Distribution of Type A behavior pattern in white collar workers:
Application of KG’s Type A Questionnaire for Type A survey, Journal
of Type A Behavior Pattern, Vol. 3, No.1, pp.68-73 (1992). (In Japanese)
[22] Kaneyoshi Ishihara, Akio Miyashita, Maki Inugami, Kazuhiko Fukuda,
Katsuo Yamazaki and Yo Miyata: The results of investigation by
the Japanese version of Morningness Eveningness Questionnaire, The
Japanese Journal of Psychology, Vol. 57, No. 2, pp. 87-91 (1986). (In
Japanese)
[23] Friedman, M. and Rosenman, R. H.: Association of specific overt
behavior pattern with blood and cardiovascular findings ; blood
cholesterol level, blood clotting time, incidence of arcus senilis, and
clinical coronary artery disease, Journal of the American Medical
Association, Vol. 169, No.12, pp. 1286-1296 (1959).
@article{"International Journal of Architectural, Civil and Construction Sciences:78277", author = "Kyoko Ito and Shinya Furuta and Daisuke Kamihigashi and Kimi Ueda and Hirotake Ishii and Hiroshi Shimoda and Fumiaki Obayashi and Kazuhiro Taniguchi", title = "An Experimental Study on Intellectual Concentration Influenced by Indoor Airflow", abstract = "In order to improve intellectual concentration, few
studies have verified the effect of indoor airflow among the thermal
environment conditions, and the differences of the season in effects
have not been studied. In this study, in order to investigate the
influence of the airflow in winter on the intellectual concentration,
an evaluation experiment was conducted. In the previous study, an
effective airflow in summer was proposed and the improvement of
intellectual concentration by evaluation experiment was confirmed.
Therefore, an airflow profile in winter was proposed with reference
to the airflow profile in summer. The airflows are a combination
of a simulative airflow and mild airflow. An experiment has been
conducted to investigate the influence of a room airflow in winter on
intellectual concentration. As a result of comparison with no airflow
condition, no significant difference was found. Based on the results,
it is a future task to ask preliminary preference in advance and
to establish a mechanism that can provide controllable airflow for
each individual, taking into account the preference for airflow to be
different for each individual.", keywords = "Intellectual concentration, airflow, winter, experiment.", volume = "12", number = "12", pages = "1188-6", }
