• 제목/요약/키워드: Subjective sensation

검색결과 320건 처리시간 0.025초

동계 인공환경실험에 의한 온열쾌적특성 연구 (A study on characteristics of thermal comfort for artificial environmental experiment in winter)

  • 박종일;김경훈;정성일
    • 설비공학논문집
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    • 제10권6호
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    • pp.721-731
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    • 1998
  • Recently, many researchers are studying the relation between thermal environment and human comfort. The purpose of this study was to obtain basic data which are necessary to determine the thermal comfort sensation and physiological responses for men in winter indoor environment. From January to February 1998, subject experiment was 40 times proceeded under twenty different conditions of air temperature and relative humidity with early-twenty male university students. We examined subjective evaluation, Electrocardiogram(ECG), Electroencephalogram(EEG) of subjects. The results of this study can be summarized as follows : The comfort zone of people in winter was achieved at Standard new effective temperature($SET^*$) $ 25.2^{\circ}C$, PMV range was obtained by Fanger's statistical calculation was -0.27<PMV<+0.62, TSV range obtained subjects vote was -0.76<TSV<+0.36. The largest difference of skin temperature was found at the calf area as air temperature changes. vote rate of human body presented calflongrightarrowheadlongrightarrowforearmlongrightarrowchestlongrightarrowabdo men in turn. Heart rate was decreased at low $SET^*$ and heart rate was increased at high $SET^*$ But there was no change at EEG.

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면과 친수 가공 폴리에스테르 소재로 된 트레이닝복의 인체 생리 효과 (Effects of Thermophysiological Responses by Trainning Wear Made from Cotton and Hygroscopically Treated Polyester)

  • 정희자;장지혜
    • 대한가정학회지
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    • 제37권12호
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    • pp.193-203
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    • 1999
  • This study was executed to show influence of material and property of sportswear to physiological responses of body and comfort sensation and to supply basic research data about comfortable sportswear Trainning wear was manufactured with cotton(C) and hygroscopically treated polyester material (FP), and its properties of material were measured. Then rectal temperature, skin temperature, heart rate, weight loss, clothing microclimate and subjective sensation was estimated with study of wearing with these sportswear and examined the influence that it got to physiological responses of body and sensation. Health adult men were selected for subjects and executed at climatic chamber of temperature, $20\pm2^{\circ}C and humidity, $60\pm5%$ R.H. Conclusively sportswear of hygroscopically treated polyester is a favorable functional material. So far factor that affect to physiological comfort sensation has been explained mostly by moisture regain but in our experiment, it turned out that air permeability, water absorption velocity and dynamic oater absorption etc. were affecting factors. So according to this result, air permeability and moisture permeability should be considered with transmittance of temperature moisture for development of comfort material.

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운동에 의한 열 스트레스하에서 흡한속건성 소재 운동복 착용시의 온열생리적 반응 및 주관적 감각 (Thermophysiological Responses and Subjective Sensations when Wearing Clothing with Quickly Water-Absorbent and Dry Properties Under Exercise-Induced Heat Strain)

  • 이소진;박신정
    • 한국의류산업학회지
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    • 제8권3호
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    • pp.349-356
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    • 2006
  • The purpose of this study was to compare the thermophysiological responses and subjective sensations of clothing materials with different water transfer property investigated in exercising and resting subjects at an ambient temperature of $20^{\circ}C$ and a relative humidity of 40%. Two kinds of clothing ensemble were tested: 100% cotton with highly water-absorbent but slowly dry properties(C) and 100% polyester with quickly water-absorbent and dry properties by four capillary channels(QADP). Seven apparently healthy male participants each undertook two series of experiments comprised 10-min of rest, 20-min of exercise with 70% of $VO_{2max}$ on a treadmill and 20-min of recovery. Mean skin temperature was significantly lower in QADP than in C during exercise and recovery. Clothing microclimate temperature was significantly lower in QADP during exercise and clothing surface temperature was also lower in QADP especially during recovery. Also, clothing surface humidity was significantly higher in QADP after the later half of exercise. The concentration of blood lactic acid tended to decrease to a lower level at recovery 3 minutes when wearing QADP rather than C clothing ensemble. Metabolic energy was marginally significantly less during the second half of exercise in QADP. Body mass loss tended to be greater in C than in QADP. The participants had better scores in thermal sensation, comfortable sensation and wetness in QADP during exercise and recovery. These results show that functional materials with quickly water-absorbent and dry properties can alleviate heat strain and induce more comfortable clothing microclimates and subjective sensations in the exercise-induced hyperthermia.

다한증 및 좌측 상지 감각이상을 호소하는 중대뇌동맥 경색 환자에 대한 치험 1례 (A Case Report of a Middle Cerebral Artery Infarction Patient Complaining of Hyperhidrosis and Left Upper Extremity Paresthesia)

  • 이경화;허혜민;이혜진;임태빈;박성욱;박정미;고창남;조승연
    • 대한한방내과학회지
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    • 제43권2호
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    • pp.294-302
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    • 2022
  • This work reports the case of a middle cerebral artery infarction patient with hyperhidrosis and left upper extremity paresthesia whose condition improved following Korean medicine treatment. The patient was hospitalized for 10 days and treated with herbal medicine, mainly Hwanggigyeji-tang, and acupuncture, electroacupuncture, and moxibustion. The hyperhidrosis was clinically classified and the patient's subjective discomfort in this regard was also checked. A subjective percentage of strength and sensation in the left extremity was evaluated to assess the clinical effects of the treatment. After treatment, the hyperhidrosis classification improved from Grade 3 to Grade 0, and the patient's subjective discomfort was greatly improved and continued for the two weeks after discharge. In addition, subjective strength and sensation improved by 20% and 5%, respectively, compared to time of admission. These results suggest that Korean medicine is effective in treating paresthesia after stroke and long-lasting hyperhidrosis.

견직물의 역학적 성질과 색채 특성을 이용한 촉감각/감성 이미지 예측모델 (Prediction Models for Tactile Sensation/Sensibility Image of Silk Fabrics by Mechanical Properties and Color Characteristics)

  • 이안례;이은주
    • 감성과학
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    • 제14권1호
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    • pp.127-136
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    • 2011
  • 본 연구에서는 견직물의 색채 특성이 촉감각/감성 이미지에 미치는 영향을 고찰하고 견직물의 역학적 성질과 색채 특성을 이용한 촉감각/감성 이미지 예측모델을 제안하고자 하였다. 연구결과로서 무채색과 유채색 견직물 모두 견직물의 역학적 성질이 기본적으로 촉감각/감성 이미지에 영향을 미치는 것으로 나타났다. 반면에 '매끄럽다', '하늘하늘하다', '독특하다', '두껍다', '뻣뻣하다', '전원적이다', '캐주얼하다', '내추럴하다', '모던하다'는 무채색과 유채색에 따라 유의한 차이가 있었다. 특히 '두껍다'와 '뻣뻣하다'는 견직물이 Red 또는 Green 색상일 때, 그리고 pale 또는 vivid 색조일 때 무채색일 때보다 더 강하게 인지되었고, '전원적이다'와 '캐주얼하다'는 Green 색상의 견직물과 pale 또는 vivid 색조의 견직물에서 무채색 견직물에서보다 더 강하게 느껴지는 경향이어서, 견직물의 색채가 주관적 촉감각/감성에 영향을 줄 수 있음을 시사하였다. 마지막으로 역학적 성질과 색채 특성을 함께 설명변수로 이용한 예측모델을 수립하여 제안하였다.

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COVID-19 감염 이후 발생한 인후부 이물감에 대한 한의치료 증례 1례 보고 (Case Report of Korean Medicine Treatment for Post-COVID-19 Globus Sensation)

  • 홍정화;김예슬;박지윤;석은주;이영주;안립;최동준
    • 대한한방내과학회지
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    • 제44권2호
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    • pp.244-251
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    • 2023
  • Globus sensation is a continuous, intermittent, non-painful sensation of lumps or foreign substances in the throat. It was reported that 13.7% of patients developed globus sensations after COVID-19 infection. A 73-year-old male patient with a globus sensation after a COVID-19 infection was admitted to the ◯◯ Oriental Medicine Hospital and treated with herbal medicine (Banhahubak-tang, Sosiho-tang). Subjective symptoms of globus sensation were measured with the Numerical Rating Scale (NRS) daily and found to reduce. The effect persisted during his admission. In conclusion, Korean medicine, including Banhahubak-tang, can be effective for patients with globus sensations after COVID-19 infections.

전통주택의 하절기 실내 온열감 평가에 관한 연구 (A Study on the Thermal Sensation Vote of the Traditional Housing in Summer)

  • 강상우;전지현;신용규;민병철;국찬
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2006년도 추계학술발표대회 논문집
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    • pp.488-491
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    • 2006
  • There is a principle of Korean Traditional Housing to be adapted for the nature using adaptable shapes to regional climate and easily available materials from the region then these environmentally friendly characteristics keep indoor environment from climate changes. These environmentally friendly characteristics to control indoor environment are very available for contemporary housing in that current issues, housing amenity and wellbeing, have basic goals same with what Korean Traditional Housing has. Therefore, this study begins to suggest fundamental data on indoor thermal environment control elements of Korean Traditional Housing to adapt those into contemporary housing through measurement of indoor thermal environment elements and evaluation on thermal sensation vote for Korean traditional housing. There was 24 hours measurement for indoor and outdoor thermal environmental elements to figure out competence to control indoor thermal environment of Korean Traditional Housing in summer. And subjective tests with 11 subjects was held in the morning, afternoon and night at intervals of 3${\sim}$4 hours to evaluate feeling and amenity for temperature and humidity of users.

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파카의 보온성에 따른 착용감에 관한 연구 (The Effects of Parka on Subject Wear Sensation as to Thermal Resistance)

  • 이윤정;이순원
    • 한국의류학회지
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    • 제13권3호
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    • pp.295-303
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    • 1989
  • This study is to measure the thermal resistance of 7 types of Parka of different materials with thermal manikin and to compare their effects on physiological responses & subjective wear sensations. Following are the results obtained from the experiments 1) From the thermal manikin experiment, i) As an outer layer, although not significant, water proof fabric was warmer than water proof-vapor permeable fabric. ii) In case of insulating material, down was better for thermal resistance than polyester wadding of the same thickness. Moreover, as the down was thicker, it had more efficiency in thermal resistance. However, the marginal efficiency of thickness was found to be decreasing. 2) From the male-subject experiments, i) Chest temperature, mean skin temperature & microclimate temperature showed the same results on thermal resistance as those of the thermal manikin experiment. ii) Only during rest periods, there was a significant difference among 5 insulating materials in the sense of microclimate humidity. The almost same conclusion was obtained from the above experiments. Even the outer layer did not significantly affect thermal resistance & subjective wear sensation, insulating materials had a significant influence upon them. But in case of 3.5 cm down, it gave less comfortable than that of the thinner. Therefore the optional one for the best comfort & thermal resistance among 7 combinatins is the outer layer of water proff-vapor permeable & insulating material of 2.1 cm down.

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사무실 근무자의 온열환경에 대한 적응수준 진단 (Diagnosis of Office Occupant's Adaptation Level for Thermal Environment)

  • 김양원
    • 한국생활과학회지
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    • 제12권5호
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    • pp.747-754
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    • 2003
  • The actual clothing conditions were surveyed to diagnose clothing condition of Korean female in the view point of the adaptation to the thermal environment according to seasonal changes. Then, clothing microclimate, physiological responses, and subjective sensation were investigated through wearing trials on human body in climatic chamber based on the results from the survey. Factors to evaluate validity of clothing condition were clothing weight, clothing microclimate, physiological response of human body, and subjective sensation. The results were as follows: 1. Clothing weight per body surface area of the season was $856g/m^{2}$, $439g/m^{2}$ in summer, $630g/m^{2}$ in fall, and $1184g/m^{2}$ in winter. Cold - resistance of Korean female in office was superior to Japanese, inferior to residents of rural areas of Korea, and similar to male in office. However, in heat - resistance, female in office was inferior to residents of rural areas of Korea. 2. In spring, fall, winter, clothing microclimate temperature was a little higher than that in summer. Therefore, it was not a desirable wearing condition even though the clothing microclimate was comfortable zone. 3. Mean skin temperature of female in office was including within the range of Winslow's comfortable zone, but the range of comfortable zone in mean skin temperature of female was more narrow than Winslow's. Thus, it has problem for female to adaptation to thermal environment.

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