• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2007년도 춘계학술대회 논문집
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• pp.105-109
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• 2007

Aging society appears immediate social problem in Korea. Housing for aging is required independent and comfortable housing life to live considering about feature of elderly. It is necessary field to prepare. Aged person who suffers the aging process several stages gets changing weak, so living environment is important aging person aspect of social, psychological and physical point. Finally, aged person living together requires facilities for the naturally communicating and active things. Community of aged person required organization of space for keeping independence and connection with each other. According to space of community, housing for aging should have a different access route. In conclusion, congregate housing of the elderly should be planed organization of space to be solved anxiety and tension and to be aware of joining the community.

• 한국전기전자재료학회논문지
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• 제28권4호
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• pp.238-243
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• 2015

The vegetable insulating oils are substitute for the mineral oil in power transformer. Vegetable insulating oils has higher flash/fire point and biodegradability than conventional mineral oils. In this paper, we investigated the dissolved gas analysis of vegetable oils. In the experiment, I had to accelerated aging under the same conditions mineral oil and vegetable oils. Accelerated aging proceeded to about 100% of the life of oil-filled transformer. In addition, we performed gas analysis of insulating oil of accelerated aging progress. The experiment results of the five gases was measured with the exception of Hydrogen and Acetylene. The mineral oil and vegetable oils gas is generated in a similar tendency depending on the accelerated aging. As a result, vegetable oils, can be dissolved gas analysis by method such as mineral oil.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 B
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• pp.1285-1287
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• 2003

The aging of the insulation reduces the electrical and mechanical strength of the insulation. At same point, a voltage surge or mechanical shock from a traction motor start will fracture or break down the insulation. To achieve the expected life usually requires extensive laboratory evaluation of the insulation systems and the use of accelerated aging tests. There are several nondestructive test available for checking. the condition of motor insulation, the probable extent of aging, and the rate of which aging is taking place. So the insulation characteristics of stator coil were each analyzed by measurement of dielectric loss($tan{\delta}$), capacitance and partial discharge. The method of diagnosis is able to analyze the aging condition and predict the life of the traction motor.

• 말소리와 음성과학
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• 제13권1호
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• pp.73-79
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• 2021

본 연구에서는 노화에 따른 발화 시 입술 움직임의 변화를 알아보고자 하였다. 연구대상으로 평균 69세의 노인 여성 15명과 평균 22세의 젊은 여성 15명을 선정하였다. 입술 움직임을 측정하기 위해 이중모음 발화시 입술 움직임을 녹화하여 스틸 이미지로 저장한 다음 입술의 움직임이 최소인 부분과 최대한 길이를 영상분석 소프트웨어를 이용하여 pixel 단위로 수작업으로 분석하여 비교하였다. 임상적 활용성을 위해 자동화 알고리즘을 적용하여 소프트웨어를 제작했으며 수작업의 결과와 비교하였다. 연구결과 노년층의 경우 청년층에 비해 이중모음 과제에서 입술의 가로 및 세로의 길이 범위가 작은 것을 알 수 있었다. 수작업과 자동화 방법의 상관관계를 측정한 결과 강한 정적 상관관계가 나타나 두 방법 모두 입술 윤곽 추출 시 유용함을 알 수 있었다. 이상의 결과를 바탕으로 노화가 진행됨에 따라 발화 시 입술의 범위가 작아지는 것을 알 수 있었다. 따라서 노화가 진행되기 전 간단하게 입술의 움직임을 측정하여 본인의 상태를 모니터링하고 입술 범위를 유지할 수 있는 운동을 실시한다면 노화로 인한 발음 문제를 예방할 수 있을 것이다.

• 한국축산식품학회지
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• 제39권1호
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• pp.139-150
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• 2019

This study aimed to determine the suitable point of sale and consumption of different quality grade (QG) Hanwoo short loin during aging period, based on physicochemical, sensory, and microbiological quality. Short loins obtained from the carcasses of 13 Hanwoo steers and 2 bulls with 5 different QGs (1++, 1+, 1, 2, and 3) were analyzed over 28 d. QG and aging time had significant effect on water holding capacity, color, shear force, total volatile basic nitrogen (TVBN) content, and sensory traits. Higher QG groups generally exhibited a lower shear force, nucleotide content, and water holding capacity, and higher $L^*$, $a^*$, and $b^*$ values. Acceptable tenderness (shear force <5.4 kg) in QG 1++, 1+, 1, and 2 was achieved on days 7, 14, 16, and 18, respectively, and QG 3 showed a shear force of 6.8 kg, even after 28 d. Regardless of QG, TVBN content below threshold levels (20-30 mg%) was observed throughout the 28 d aging period, while total plate counts above 7 Log CFU/g were seen at 21 d. In conclusion, it is recommended that Hanwoo beef with QG 1++, 1+, and intermediate QG (1 and 2) should be sold or consumed between 7 and 21, 14 and 21, 16 and 21 d, respectively. Beef with QG 3 should be sold or consumed within 21 d, based on microbial growth, even though it has not achieved desirable tenderness. For this reason, an additional tenderizing process is recommended before this beef is ready for consumption.

• 재활치료과학
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• 제11권2호
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• pp.25-37
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• 2022

목적 : 본 연구는 노화불안과 라이프스타일에 관한 연구의 흐름을 계량서지학적 분석 방법을 통해 거시적인 관점에서 파악하고, 핵심 단어들의 연관성 분석을 실시하고자 한다. 이를 통해 노화불안과 라이프스타일에 관한 연구를 진행하기 위한 기초자료를 제공하는 것을 목적으로 한다. 연구방법 : 계량서지학적 분석 방법 중 인용 횟수를 기준으로 연관성을 파악하는 인용분석과 키워드의 출현 횟수를 기준으로 연관성을 파악하는 동시출현단어 분석 방법을 사용하였다. 분석된 정보들을 군집화하고 도표화하기 위해 VOS viewer(version 1.6.13, Leiden University, Netherlands, 2020)를 사용하였다. 결과 : 논문의 연도별 발생빈도는 2017년까지 완만한 상승세를 나타내었으며 2018년부터는 급증하는 추세를 나타내었다. 연구논문 학문 분야에서는 정신의학 분야에서 연구가 가장 활발하게 진행되었다. 인용분석에서는 미국, 호주, 영국이 서로 높은 상호연관성을 나타냈으며, 주요 키워드에 대해 동시출현 단어 분석을 실시한 결과 노화불안과 연관성이 높은 단어는 우울로 나타났다. 결론 : 본 연구는 계량서지학적 분석 방법을 사용하여 노화불안과 라이프스타일 연구의 흐름을 거시적인 관점에서 파악했다는 점에서 의의가 있다. 이를 토대로 노화의 예방적 관점에서 라이프스타일이 갖는 중요성을 파악하고, 중재 및 관련 교육의 기초자료로 활용되기를 기대한다.

• 한국항공우주학회지
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• 제48권8호
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• pp.581-588
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• 2020

고전압 기폭관의 노화 특성에 관하여 연구하였다. 노화 특성 관측을 위해 먼저 고전압 기폭관의 주요 구성품을 분류하고, 고장 메커니즘을 정의하였다. 위력과 감도 측면에서 노화 특성을 정의하였으며, HFC (Heat Flow Calorimetry)를 통해 계산된 활성화 에너지와 아레니우스 이론을 기반으로 가속노화시험 계획을 수립하였다. 노화된 시료를 이용하여 민감도 시험인 Neyer Test와 위력시험인 Dent Test를 통하여 성능 변화를 관측하였다. 민감도 시험을 통해 구한 반폭점에서 노화 경향을 관찰하였으나 관련 규격을 고려하면 충분히 긴 수명을 가지고 있는 것으로 분석되었다.

• 보건행정학회지
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• 제29권4호
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• pp.412-421
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• 2019

Background: The purpose of this study was to identify the status of Successful Aging among the elderly aged 65 and over in rural areas and to compare factors related with Successful Aging between "kyung-ro-dang" users and non-users. Methods: A total of 181 elderly aged 65 or older were selected from four districts (Heung-upri, Mejiri, Sajerri, and Daeanri) of Wonju city. A survey method using face to face interviews was applied to collect information. Successful aging was measured on a 5-point Likert-type scale using the successful aging scale developed for the Korean elderly, which indicates the higher the score, the higher the level of successful aging. Descriptive statistics, bivariate, and multivariate analyses were computed; the level of significance was set at 5%. Hierarchical polynomial regression was applied to find out the factors associated with successful aging. Results: Of the total, 112 elders used kyung-ro-dang and 69 elders who did not use kyung-ro-dang. The level of successful aging of the elderly was higher among kyung-ro-dang users than non-users. The factors related to successful aging among kyung-ro-dang users were walking and social participation. Users who walk more than 4 times per week and social participation activities have a higher level of satisfaction. In the case of non-users, a higher level of monthly income, having a spouse, social support, and social participation associated with a higher level of successful aging. Conclusion: Monthly income, social participation, and social factors were found to be related to successful aging along with physical and mental health conditions among the elderly in rural areas. Therefore, it can be concluded that income, social as well as mental and physical factors, are more critical for successful aging in the rural community care in Korea.

• Journal of Advanced Marine Engineering and Technology
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• 제22권5호
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• pp.660-669
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• 1998

In this paper the Hardness and Electro-chemical corrosion of the Nimonic 80A superalloy were studied. It aging heat treatments was carried out at $650^{\circ}C$, $700^{\circ}C$, $750^{\circ}C$,$800^{\circ}C$ and $850^{\circ}C$ with different time of 20min , 30min 1hour, 2hours, 4hours, and 16hours additionally 64hours and 128hours at $650^{\circ}C$. The obtained results were as follows; 1. As aging temperature increased the time for the maximum hardness was reduced from 128hours at $650^{\circ}C$ to 30min at $850^{\circ}C$ whereas the highest hardness was reduced from Hv 381 at $650^{\circ}C$ to Hv 321 at $850^{\circ}C$. 2. In the Electro-chemical corrosion test as a function of aging heat treatment time and tem-perature the corrosion potential was reversely proportional to Hardness which indicated the effects of ${\gamma}/{\gamma}'$ coherency of base material and precipitate. 3. Initiation point of the pitting was observed at grain boundary twin boundary and near${\gamma}'$ pre-cipitates. The results of composition analysis by EDS at this point indicated that sulphur originat-ed from 1N $H_2SO_4$ solution was found in depletion at the grain boundaries and the pit which arouse in the near precipitates were lack of Al Ti and Ni which are the main element of ${\gamma}'$ The depletion of such element was cause breakdown of passive film.

• 대한의용생체공학회:의공학회지
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• 제10권3호
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• pp.261-268
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• 1989

The characteristics of aging of near-equiatomic Ni-Ti alloy has been studied by the three point bend test and the measurement of Differential Scanning Calorimetry(DSC). The DSC is used to measure precise transformation temperatures and the amount of thermal energy required for the corresponding phase transformation. The effort of hardness on aging treatment in saline solution of $37^{\circ}C$ was higher for the annealed than solution treated specimens. As the testing temperature inc- rease from under $M_f$ to above $A_f$ temperature, the elastic stiffness increased. Almost full recovery can be achieved after bending below Belo outer fiber strain. Total bend recovery decreased gradually as aging time and bend angle is increased.