• The Journal of the Acoustical Society of Korea
• /
• 제17권1E호
• /
• pp.20-29
• /
• 1998

This paper proposes a new stereophonic acoustic echo canceler with deploying delayless subband adpative filters. Due to the storong correlation between stereo signals, a stereophonic acoustic echo canceler is suffering from the slow convergence and the misalignment for estimating impulse responses corresponding to true echo paths at receiving room. Specially, dual adaptive filters for echo cancellation are significantly affected by the abrupt change of the transmission room environment so that the impariments on voice communication could be experienced. To prevent these performance degradations, this paper proposes a robust subband echo canceler employing pre-processing block so as to enhance the convergence speed and provide the insusceptibility to the environment change at transmission room.

• 한국융합학회논문지
• /
• 제12권11호
• /
• pp.155-160
• /
• 2021

본 연구에서는 IPA를 이용한 물리치료사의 감염관리 의식과 수행능력을 분석하였다. 4개 영역은 손위생, 개인관리, 진료실 환경, 감염관리 교육으로 구분하고 인식과 실천에 대한 설문조사를 하였다. 일반적인 특성은 빈도분석하고 인지도와 수행도는 대응표본 t-test와 Pearson's correlation를 통해 분석하였다. 손위생은 둘다 높았고 감염관리 교육은 수행도는 높으나 인지도가 낮은 것으로 나타났다. 치료실 환경의 수행도는 높았으나 인지도가 낮았고 개인관리의 둘다 낮았다. 따라서 본 연구를 바탕으로 감염관리 교육은 인지도를 개선해야 하는 정책 치료실 환경은 수행도를 개선해야 하는 전략, 개인 관리는 수행도와 인지도를 동시에 개선해야 하는 전략이 필요하다.

• 한국의류산업학회지
• /
• 제24권6호
• /
• pp.756-765
• /
• 2022

The purchase-related responses of MZ generation consumers may vary depending on the environmental factors of the fitting room. Therefore, this study extracted and systematized fitting room characteristics in the retail fashion environment. In-depth interviews were conducted with a total of 50 informants to collect data on the experience of using the fitting room. Then, a qualitative analysis was performed. First, results confirmed that the environmental factors of the fitting room include physical (spatiality, functionality, comfort, and convenience) and human (interactivity and congestion) aspects. Next, additional analysis was performed on functionality and interactivity to clarify the influence of environmental characteristics of the fitting room. These factors were classified into qualitative categories. The study results confirmed that, in the case of functionality, preferred lighting and mirror factors vary depending on the clothing product type, the place and situation for wearing, and individual characteristics. Furthermore, regarding interactivity, the preference for the presence of sales staff or companions differed according to personal traits and the need for additional information and evaluation. The study provides valuable information for effective fitting room space planning for offline fashion stores to meet the needs of MZ generation consumers.

• 간호행정학회지
• /
• 제22권5호
• /
• pp.471-479
• /
• 2016

Purpose: This study was conducted to evaluate the level of safety climate, fatigue, and safety performance and to identify the impact of safety climate and fatigue on the safety performance of operating room nurses. Methods: The study design was a descriptive survey. Participants were 174 operating room nurses from two general hospitals and two university hospitals in S and D cities. Three structurally designed questionnaires were used to evaluate their safety climate, fatigue, and safety performance. Collected data were analyzed using descriptive analysis, t-tests, ANOVAs, Pearson correlation coefficient, and stepwise multiple regression. Results: Safety performance of operating room nurses had a mean of 3.26 on a 5-point scale. 'Current department career'(${\beta}=.17$, p=.006) and 'safety climate (work-unit contribution) (${\beta}=.63$, p<.001) accounted for 39% of the variance in operating room nurses' safety performance. Conclusion: Findings indicate that work-unit contribution towards safety climate is an important factor in increasing operating room nurses' safety performance. Therefore, it is essential to find motivational properties consistent with the characteristics of the operating room environment.

• 한국주거학회논문집
• /
• 제12권1호
• /
• pp.85-92
• /
• 2001

The purpose of this study is to investigate the characteristic of the thermal environment at a living room by the heating system(floor radiation heating, forced convection heating, combined heating, radiation convection heating), and to compares the change of the thermal environment after operating the heating with after the operation stopped based on the floor radiation heating. This study proposes the basic data for the design and the development of the thermal storage structure heating system which not only utilizes fully the characteristic of the comfortable thermal environment but also reduces the preheating period and be able to use the off-peak electricity.

• 한국콘텐츠학회:학술대회논문집
• /
• 한국콘텐츠학회 2009년도 춘계 종합학술대회 논문집
• /
• pp.1111-1117
• /
• 2009

응급의료의 수요와 요구의 급증으로 인해 더욱 혼잡한 환경과 폭력, 의료분쟁에 노출되어 있는 응급실 간호사는 누구나 불안을 경험한다. 이러한 불안은 부정적 생리 반응을 일으켜 직무수행도와 직무만족도를 저하시키는 중요한 요인이 되고 있으므로 응급실 간호사들의 불안을 완화시켜주기 위한 중재 환경이 절실히 필요하다. 본 논문은 음악 감상을 통한 음악 중재가 응급실 간호사들의 불안에 미치는 효과를 개선시키는 것을 보인 것이다. 음악으로는 대표적인 성악곡을 선택하였으며, 응급실 간호사의 불안과 활력징후에 미치는 음악 효과를 측정하기 위하여 불안 측정 도구로는 SAI(State Anxiety Inventory)를 활용하였다. 실험을 통해 성악을 통한 음악중재가 응급실 간호사의 불안을 감소시키고 활력징후를 안정화시킨다는 결과를 얻었다.

• 한국디지털건축인테리어학회논문집
• /
• 제8권2호
• /
• pp.73-82
• /
• 2008

The purpose of this study is to analyze behaior character of dementia patients and physical environment problem through survey, research and interview on the problems arising from the dementia specialized facilities and according to the data from it, suggesting a plan to improve physical environment and design guideline. Three hospitals were chosen, which had both private space, public space and semi-public space, and dementia patients were chosen from them, who were able to move room to room by themselves.

• 한국대기환경학회지
• /
• 제30권3호
• /
• pp.245-250
• /
• 2014

As the number of nursery facilities and infants who stay there is continuously increasing, IAQ (Indoor Air Quality) of nursery facilities should be managed strictly and thoroughly because infants are more susceptible to infections due to their low resistivity. In this study the characteristics of IAQ and ventilation associated factors were investigaed for suggesting a desirable condition for IAQ management. Environmental factors were not much related to IAQ characteristics rather than internal factors such as structures of the room. And the positive effect of ventilation on IAQ was obvious and seemed to hinge on factors related to window area especially window/wall ratio. Results of this study indicate that the structure with broader window area of a room and frequnet ventilation can be an effective way for keeping IAQ of nursery facilities clean and safe.

• KIEAE Journal
• /
• 제12권2호
• /
• pp.25-32
• /
• 2012

This paper focused on the daylighting performance of residential high-rise buildings in South-Korea. the purpose of this study is to estimate the visual environment of sunlight coming into opening according to sky conditions, orientation of windows and each space of Apartment buildings. Season of the year, weather, and time of day combine with predictable movement patterns of the sun to create highly variable and dynamic daylighting conditions. Daylighting design is usually based on the dominant sky condition and the micro-climate for the building site. There are three common sky conditions: clear sky, overcast sky, and partly cloudy sky. The clear sky includes sunshine and is intense and brighter at the horizon than at the zenith, except in the area around the sun. Daylight received within a building is directly dependent upon the sun's position and the atmospheric conditions. Easily used charts, diagrams, and software programs allow study of solar geometry for any geographic location and time of day. on the other hand, the overcast sky is characterized by diffuse and variable levels of light and has dense cloud cover over 90% of the sky. This paper was calculated by a Desktop Radiance program. The space dimensions were based on a unit module of real constructed apartment having divided into five sections such as living room, room1, room2, room3 and kitchen.

• 한국주거학회논문집
• /
• 제1권2호
• /
• pp.1-11
• /
• 1990

A study of domestic furniture arrangements may reveal the living style relevant to the room as conceived and coded by occupants and the effects of the physical environment on the structure of behavior settings. The purpose of this study was to investigate, through analizing the furniture usage and behavior as a non-reactive and activity oriented behavioral measures, the occupants` domestic habits as a living style using MDS. MDS(multidimensional scaling technique) is a statistical technique for creating a spatial representation of data. It Is a particularly appropriate technique for analizing qualitative data such as the furniture usage and behavior because it takes into account all of the relationships between items. For the MDS analysis, the furniture usage and behavior examined by housing types based on 114 households in Seoul. The result of spatial configuration by MDS has three dimensions : recogn;lion of room function, pattern of room organization, understanding of room meaning. The effect of housing types for dimensions is identical but configuration of furniture items is different.