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중앙 119구조본부 소방대원용 화학 보호복과 방열복의 동작적합성 평가 및 디자인 개선
Syifa Salsabila,김도희,이주영 한국의류산업학회 2023 한국의류산업학회지 Vol.25 No.4
The present study developed a test protocol for evaluating the mobility of firefighting chemical and flame personalprotective equipment (PPE) for the National 119 Rescue Headquarters in Korea and suggested ergonomic design factors toimprove their mobility and performance. Six types of PPE were employed, including three types for flame protective PPE(5 ~ 6 kg excluding the self-contained breathing apparatus), and three types for chemical and flame protective PPE (8 ~11 kg). These PPEs are used by the 119 Rescue firefighters. Three male firefighters (34.3 ± 1.2 y in age, 175 ± 8 cm inheight, 81 ± 13 kg in body weight) participated in the mobility test and interview. A mobility test protocol consisting of 16components (nine postures and seven motions including a dexterity test) along with a visibility test were developed basedon pre-interviews and literature reviews. The findings indicated that the clothing microclimate humidity on the neck andchest exceeded 85%RH on average for all the six PPE conditions, with the chest area reaching as high as 98%RH. This highhumidity caused fogging inside the visor and impaired visibility. The requirements for improving the PPE design in termsof mobility varied depending on whether it was the separated types or all-in-one types, particularly regarding the hood andgloves design. The findings of this study can be applied to improve the design of Level A_PPE for firefighters. The mobilitytest protocol and visibility test developed in this study can also be applied to other types of Level A impermeable PPE.
Thermal effects of rayon and polyester hijabs in warm-humid and hot-dry environments
Salsabila Syifa,마리아 스텐키나,Sabrina Ilma Sakina,이주영 한국의류학회 2024 Fashion and Textiles Vol.11 No.1
Hijabs are predominantly worn in hot environments, but very rare studies on the thermo-physiological effects of wearing hijabs are found. We investigated the effects of wearing rayon and polyester hijabs on wearers’ physiological and subjective responses in warm-humid and hot-dry environments. Eight females (25.0 ± 2.3 y in age, 157.7 ± 4.1 cm in height, and 50.8 ± 7.5 kg in weight) participated in three conditions (No hijab, rayon hijab, and polyester hijab condition) during exercise in two thermal environments: a warm-humid (30 °C and 70%RH) and a hot-dry environment (36 °C and 30%RH), which generated an identical wet-bulb globe temperature at 27 °C. The results showed that no differences in rectal temperature were found among the three clothing conditions or the two environments, whereas auditory canal temperature was higher in the hot-dry than in the warm-humid environment ( P < 0.05) with no differences between the polyester and rayon hijab conditions. Mean skin temperature and neck temperature were higher for the polyester condition than for the rayon condition in the warm-humid environment ( P < 0.05). Sweat rate was greater for the polyester hijab condition than for the no hijab condition in the warm-humid environment ( P = 0.049). Heart rate was greater for the polyester hijab condition than for the other two conditions in the warm-humid environment ( P < 0.05). Subjects felt more thermally uncomfortable when wearing the polyester hijab than the rayon hijab in the warm-humid environment. Greater thermal burden of the polyester hijab when compared to the rayon hijab was marked in the warm-humid environment, not in the hot-dry environment.
손 냉각과 압박이 조합된 항암 치료용 장갑이 손의 혈관 수축 및 국소 감각에 미치는 영향
백윤정,Maria Stenkina,문주현,Syifa Salsabila,이초은,임가영,이혜린,이주영 한국생활환경학회 2023 한국생활환경학회지 Vol.30 No.2
This study investigated the combined effects of wrist compression and hand cooling on cutaneous vasoconstriction of the hands to develop chemotherapy gloves that alleviate side-effects of anti-cancer treatments. Eight healthy young females (23 ± 3 y in age, 162 ± 4 cm in height, 60 ± 8 kg in weight, 22.6 ± 3.0 kg·m-2 in body mass index, 29.0 ± 6.6 % body fat) participated in the following three experimental conditions: cooling only with 14oC (CO), cooling & intermittent compression (CIC), and cooling & continuous compression (CCC). The results showed 1) no significant differences in finger skin blood flow(%) or finger skin temperature among the three conditions, 2) no significant difference in hand skin temperature between the CO and CCC or CIC conditions, and 3) no significant differences in overall thermal sensation or thermal comfort among the three conditions. However, subjects felt more wrist and hand pressure and tingle sensations in the CIC (pressure phase) and CCC conditions than in the CO condition (P<0.001). In conclusion, we did not find any synergistic effects on hand skin vasoconstriction from adding wrist compression to hand cooling, and the pressure and tingling sensations were deteriorated by adding the compression band. Therefore, we suggest cooling the hands at 14oC during cancer treatments, rather than adding compression with cooling.
여름철 서울과 부산 지역 습구흑구온도(WBGT)와 지역 거주자의 열스트레스 인지 및 체온조절 행동 간의 관련
주희영,정다희,노상현,이민희,Syifa Salsabila,임가영,이혜린,이초은,문주현,김규랑,이주영 한국생활환경학회 2022 한국생활환경학회지 Vol.29 No.2
The purpose of the present study was to investigate relationships between Wet-bulb globe temperature (WBGT), subjective perception and thermoregulatory behavior of residents in Seoul and Busan during summer. A total of 2,652 adults (1,327 in Seoul and 1,325 in Busan) participated in the six times of surveys with an identical questionnaire from June to August, 2021. WBGT was measured in Seoul and Busan six times on the same days as the survey conducted. WBGT was 28.3 ± 2.7oC in Seoul and 27.8 ± 2.4oC. Globe temperature was higher in Seoul than in Busan, while air humidity was higher in Busan than in Seoul. Residents in Seoul felt more thermally uncomfortable to temperature rise compared to residents in Busan. There was not a big difference in air temperature to be perceived as hot weather between residents in Seoul (30.4 ± 2.6oC) and in Busan (29.7 ± 2.5oC). Also, no differences in self-identified heat tolerance, clothing insulation in summer, and thermoregulatory behaviors to heat stress between residents in Seoul and Busan. In summary, the difference in the relationship between WBGT and thermal comfort which were measured on the WBGT-recorded days in Seoul and Busan indicated the difference between continental and marine climates, while no difference was found in thermoregulatory behavior or usual cognition to thermal environments between two cities. These results suggest that the impact of summer weather on human adaptation to heat was waned due to indoor air-conditioning systems in summer spread out in two cities.