• 제목/요약/키워드: Comfort level

검색결과 475건 처리시간 0.028초

여자 청소년들의 건강유해성 지각과 스키니 진 구매행동에 대한 연구 - 외모관련행동의 영향력을 중심으로 - (Female Adolescents' Awareness of Health Harmfulness and Skinny Jeans Purchasing Behavior: Focus on the Effect of Appearance-Relative Behavior)

  • 함선자;정혜정;오경화
    • 한국의류산업학회지
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    • 제14권3호
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    • pp.438-447
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    • 2012
  • This study investigates the effects of appearance-relative behaviors of adolescent female consumers on their awareness of heath harmfulness and skinny jeans purchasing behaviors and identifies the influential variables on the wearing satisfaction of skinny jeans. A survey was carried out with middle and high school female students and 386 responses were analyzed using descriptive analysis, factor analysis, a reliability test, and regression analysis. The results of this study were as follows, 1) From the results of the factor analysis on appearance-related behaviors and clothing benefits of skinny jeans for female adolescents, each of the variance assessments clearly showed factorial structures. 2) As a result of looking at the influences of appearance-relative behaviors on the clothing benefits of skinny jeans, respondents who paid more attention to their appearance tended to consider hygiene and activity comfort less important. In addition, respondents who had higher fashion concerns tended to consider aesthetic, practicability, desired trend, and activity comfort more important. 3) Respondents who had higher fashion concerns and considered activity comfort more important among skinny jeans benefits showed a higher level of satisfaction when wearing skinny jeans. However, respondents who thought aesthetic and health hygiene more important when buying skinny jeans showed a lower level of satisfaction when wearing skinny jeans. Female adolescents showed less satisfaction when wearing skinny jeans, as they perceived harmfulness about skinny jeans more.

환경온도 -10℃에서 Clo값에 따른 인체 생리반응 및 주관적 감각 (Physiological Responses and Subjective Sensations by Clo Values at -10℃)

  • 김지연;송민규;김희은
    • 한국의류산업학회지
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    • 제12권4호
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    • pp.531-537
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    • 2010
  • The purpose of this study was to review physiological responses and subjective sensations in the cold environment when the subjects wore ensemble with different clo values. Seven healthy male subjects participated in this experiment. This experiment was conducted in a climatic chamber with $-10^sC$ and 50%RH. Subjects wore five different kinds of ensemble[C1 (4.453 clo), C2 (3.452 clo), C3 (2.865 clo), C4 (2.387 clo), and C5 (2.280 clo)]. The experiment was composed of 20 min of rest period, 20min of treadmill exercise(6 km/h) period, 30 min of recovery period. We monitored skin temperature on 7 sites, clothing microclimate and subjective sensations. The clo value had positive correlations with mean skin temperature and clothing microclimate. The subjects feel more warm and humid as the clo value goes up. The subjects reported comfort when they wore C1 and C2 ensemble having over 3 clo value. However, they felt less comfortable during the exercise period since there was high humidity. Skin temperature on the extremities were more dramatically changed by the exercise rather than clo value. Thus it seems that in the cold environment, heat balance can mostly be controlled by the choice of clothing, and the clothes with high clo values can provide higher insulation. In conclusion, our findings suggest that it would be more effective to control clo value depending on the activity level for maintaining comfort level in the cold environment.

Nationalizing Transnationalism: A Comparative Study of the "Comfort Women" Social Movement in China, Taiwan, and South Korea

  • Alvarez, Maria del Pilar
    • Journal of Contemporary Eastern Asia
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    • 제19권1호
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    • pp.8-30
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    • 2020
  • Most literature on the "comfort women" social movement focuses on the case of Korea. These works tend to transpose the meanings generated by South Korean organizations onto the transnational network, assuming certain homogeneity of repertoires and identities among the different social actors that comprise this network. Even though there is some degree of consensus about demands, repertoires, and advocacy strategies at the international level, does this same uniformity exist at the national level? In each country, what similarities and differences are present in the laboratories of ideas, relationships, and identities of social actors in the network? Symbolically and politically, do they challenge their respective societies in the same way? This article compares this social movement in South Korea, China, and Taiwan. My main argument is that the constitutive base for this transnational network is the domestic actions of these organizations. It is in the domestic sphere that these social actors reinforce their agendas, reinvent their repertoires, transform their identities, and expand their submerged networks, allowing national movements to retain their latency and autonomy. Following Melucci's relational approach to the study of social movements, this research is based on a qualitative analysis of institutional documents, participant observation, and open-ended interviews with members of the main social actors.

Optimization of Wind Louver Angle By CFD Simulation

  • Piao, Gensong;Shon, Donghwa;Kim, Youngwoo;Lee, Jungwon;Choi, Jaepil
    • Architectural research
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    • 제18권4호
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    • pp.137-144
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    • 2016
  • The objective of this study was to determine the optimal angle of a wind louver that would induce the optimal wind speed for indoor. Being controlled to have an optimized angle depending on the direction from which wind is blowing and the wind speed, the wind louver to be installed on the building envelop comes to create indoor comfort through a constant wind speed using the function that reduces the indoor wind speed by changing the angle when the wind speed is not lower than a certain level and makes wind flow into the room to the maximum when the wind direction is adverse to catching the wind or the wind speed is not higher than a certain level. To determine the optimal wind louver angle, a core-centered office building with cross-ventilation problems in the climate of Seoul, Korea, which experiences four distinct seasons, was considered for analysis in this study. A module 1 office space model was used for the CFD simulation to analyze the average indoor wind speed with respect to the outdoor wind speed (varied between 1 and 8 m/s), the wind louver angle, and the outdoor wind direction (varied between $0^{\circ}$ and $180^{\circ}$ in steps of $10^{\circ}$).

FEM vibroacoustic analysis in the cabin of a regional turboprop aircraft

  • Cinefra, Maria;Passabi, Sebastiano;Carrera, Erasmo
    • Advances in aircraft and spacecraft science
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    • 제5권4호
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    • pp.477-498
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    • 2018
  • The main goal of this article is to validate a methodological process in Actran MSC Software, that is based on the Finite Element Method, to evaluate the comfort in the cabin of a regional aircraft and to study the noise and vibrations reduction through the fuselage by the use of innovative materials. In the preliminary work phase, the CAD model of a fuselage section was created representing the typical features and dimensions of an airplane for regional flights. Subsequently, this model has been imported in Actran and the Sound Pressure Level (SPL) inside the cabin has been analyzed; moreover, the noise reduction through the fuselage has been evaluated. An important investigation and data collection has been carried out for the study of the aircraft cabin to make it as close as possible to a real problem, both in geometry and in materials. The mesh of the structure has been built from the CAD model and has been simplified in order to reduce the number of degrees of freedom. Finally, different fuselage configurations in terms of materials are compared: in particular, aluminum, composite and sandwich material with composite skins and poroelastic core are considered.

Analytical study of house wall and air temperature transients under on-off and proportional control for different wall type

  • Han, Kyu-Il
    • 수산해양기술연구
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    • 제46권1호
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    • pp.70-81
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    • 2010
  • A mathematical model is formulated to study the effect of wall mass on the thermal performance of four different houses of different construction. This analytical study was motivated by the experimental work of Burch et al. An analytical solution of one -dimensional, linear, partial differential equation for wall temperature profiles and room air temperatures is obtained using the Laplace transform method. Typical Meteorological Year data are processed to yield hourly average monthly values. These discrete data are then converted to a continuous, time dependent form using a Fast Fourier Transform method. This study is conducted using weather data from four different locations in the United States: Albuquerque, New mexico; Miami, Florida; Santa Maria, California; and Washington D.C. for both winter and summer conditions. A computer code is developed to calculate the wall temperature profile, room air temperature, and energy consumption loads. Three sets of results are calculated one for no auxiliary energy and two for different control mechanism -- an on-off controller and a proportional controller. Comparisons are made for the cases of two controllers. Heavy weight houses with insulation in mild weather areas (such as August in Santa Maria, California) show a high comfort level. Houses using proportional control experience a higher comfort level in comparison to houses using on-off control. The result shows that there is an effect of mass on the thermal performance of a heavily constructed house in mild weather conditions.

신생아중환자실 간호사의 완화간호에 대한 지식과 태도 및 죽음에 대한 인식 간의 관계 (Relationship Among Nurses' Knowledge, Attitude Towards Palliative Care and Perception of Death in Neonatal Intensive Care Units)

  • 위다희;강숙정
    • Child Health Nursing Research
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    • 제22권4호
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    • pp.257-264
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    • 2016
  • Purpose: The purpose of this study was to investigate the relationship among knowledge and attitude toward palliative care and perception of death for Neonatal Intensive Care Unit (NICU) nurses. Methods: A cross-sectional descriptive study was conducted with 110 nurses who work in NICUs in South Korea. The participants filled out a questionnaire regarding their knowledge, attitude towards palliative care and perception of death. The attitude scale was divided into 3 subscales: comfort level, nurses' role and nurses' involvement with family. Results: Comfort level regarding attitude towards palliative care was positively correlated with knowledge (r=.220, p=.016) and the perception of death (r=.194, p=.042). Nurses' role showed a positive correlation with perception of death (r=.395, p=.001). Conclusion: NICU nurses' knowledge of palliative care was below standard across the board, implying that there is a definite need for palliative care education for nurses. The education program for palliative care should include a section that focuses on fostering a positive perception of death as well as defining and delineating the role of nurses.

프레임 차량의 주행진동 저감을 위한 프레임 부시 복소 동강성 결정에 관한 연구 (A Study on Determination of Complex Stiffness of Frame Bush for Ride-Vibration Improvement of Body-on-Frame Vehicle)

  • 정면규;김기선;김광준;황인진
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2005년도 추계 학술대회논문집(수송기계편)
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    • pp.194-199
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    • 2005
  • Body-on-frame type vehicle has a set of frame bushes which are installed between body and frame fur vibration Isolation. Such frame bushes are important vibration transmission paths to passenger space. In order to reduce the vibration level of passenger space, therefore, the change of complex stiffness of the frame bushes is more efficient than modification of other parts of the vehicle such as body, frame and suspension. The purpose of this study is to reduce the vibration level for ride comfort by optimization of complex stiffness of frame bushes. In order to do this end, simple finite element vehicle model was constructed and the complex stiffness of frame bushes was set to be design variable. Objective function was defined to reflect passenger ride comfort and genetic algorithm and sub-structure synthesis were applied for minimization of the objective function.

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Designs for Development of Bra Tops for the New Senior Generation

  • Lim, Hosun;Cho, Hakyung
    • 한국의류산업학회지
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    • 제15권3호
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    • pp.358-363
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    • 2013
  • Due to recent changes in increased life expectancy, economic power and social development, the new senior generation (focusing on people in their fifties) represents a new market power with strong competitiveness. The new senior generation is the generation after the baby boomers, with characteristics that include a high-level of education, increased income, a high-level of consumption, increased assets, self-fulfillment desires and individuality. Demands in the senior fashion industry are expected to gradually increase and the underwear industry that targets the new senior generation is expected to grow rapidly. These demands will require product development for the new senior generation based on emotional and socio-cultural characteristics. The current new senior underwear market is under the process of R&D with a focus on body shape changes; however, there are limited studies on emotional and socio-cultural approaches. This study formulates a basic design plan for different age groups based on an analysis of the situation of bra wear (current inconveniences, demand and needs) by women in their fifties and over. Subsequently, a functional active bra top that considers activity and comfort was proposed for women in their fifties, an all-in-one foundation bra top that shapes the body was proposed for women in their sixties, and comfort bra tops that are comfortable and easy to put on and take off were proposed for women in their seventies and over.

Appliance Load Profile Assessment for Automated DR Program in Residential Buildings

  • Abdurazakov, Nosirbek;Ardiansyah, Ardiansyah;Choi, Deokjai
    • 스마트미디어저널
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    • 제8권4호
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    • pp.72-79
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    • 2019
  • The automated demand response (DR) program encourages consumers to participate in grid operation by reducing power consumption or deferring electricity usage at peak time automatically. However, successful deployment of the automated DR program sphere needs careful assessment of appliances load profile (ALP). To this end, the recent method estimates frequency, consistency, and peak time consumption parameters of the daily ALP to compute their potential score to be involved in the DR event. Nonetheless, as the daily ALP is subject to varying with respect to the DR time ALP, the existing method could lead to an inappropriate estimation; in such a case, inappropriate appliances would be selected at the automated DR operation that effected a consumer comfort level. To address this challenge, we propose a more proper method, in which all the three parameters are calculated using ALP that overlaps with DR time, not the total daily profile. Furthermore, evaluation of our method using two public residential electricity consumption data sets, i.e., REDD and REFIT, shows that our energy management systems (EMS) could properly match a DR target. A more optimal selection of appliances for the DR event achieves a power consumption decreasing target with minimum comfort level reduction. We believe that our approach could prevent the loss of both utility and consumers. It helps the successful automated DR deployment by maintaining the consumers' willingness to participate in the program.