• 통합자연과학논문집
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• 제13권2호
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• pp.47-57
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• 2020

The purpose of this study was to understand experiences of successful aging of community-dwelling elderly living in the Korean community using mixed methods. This study is a mixed methods research using convergent parallel design. 483 elderly people living in the 2 cities were selected as subjects to collect quantitative data. For qualitative data collection, 6 elderly people participated. The level of successful aging for elderly people living at home scored an average of 4.30 ± .59 out of 5 points (4.46 ± .64 for self-efficacy, 4.31 ± .65 for good self-control, 4.29 ± .70 for satisfaction with children's success, and 4.26 ± .61 for partnership with spouses). The main themes of successful aging derived by interview were as follows: 1) fulfill responsibilities of raising children as parents, 2) establish a stable life to overcome difficulties, 3) accept the body being different from the past, and 4) live in harmony with people around them. Based on these results, it is necessary to provide useful health care services that can be used in the local community and to provide service utilization information through various routes in order to achieve a successful aging.

• 한국축산식품학회지
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• 제40권2호
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• pp.286-296
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• 2020

This study investigates the utilization of an electric-field-induced super cooling system in long-term dry aging of beef loin. Analyzed quality properties of dry-aged beef loin applied with electric field refrigeration (EFR) versus commercial refrigeration (CR). Quality properties was including aging loss, pH, water holding capacity (WHC), cooking loss, color, warner-bractzler shear force (WBSF), total plate count (TPC), and thiobarbituric acid reactive substances (TBARS). Aging loss of wk 1 EFR was significantly lower than CR (p<0.05). pH of EFR was slow change tendency compared CR. WHC of both aging methods were higher with increase in aging duration. Cooking loss of wk 1, 2, 4, and 10 EFR were significantly lower than CR (p<0.05). Lightness and redness of EFR was slow change tendency compared CR. However, yellowness of EFR was increased until wk 2, 3, and significantly decreased at wk 10 (p<0.05), but yellowness of CR was decreased until wk 3 and significantly increased with an increasing aging weeks (p<0.05). Both aging methods of WBSF was decreased with increase in aging weeks; however, wk 10 of CR was significantly lower than EFR (p<0.05). TPC after wk 3 EFR groups were significantly lower than CR groups (p<0.05), and TBARS of EFR groups were significantly lower than CR (p<0.05). The present results show that application of the EFR system for dry aging beef loin can extends its shelf life and induce changes of several aging properties in similar to commercial aging.

• 대한한의학원전학회지
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• 제28권2호
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• pp.47-60
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• 2015

Objectives : To investigate the anti-aging effects of Joobang(酒方) on Dongeuibogam Methods : We analyzed the effect of 27 Joobang(酒方)s on Dongeuibogam and finally extracted 11 Joobang(酒方)s, which have anti-aging effects. Results & Conclusions : 1. We finally selected 12 terms of Joobang(酒方)'s anti-aging effect on Dongeuibogam. 2. We finally selected 11 Joobang(酒方)s as anti-aging candidates. 3. Twelve terms of Joobang(酒方)'s anti-aging effect and 11 candidates with anti-aging effects were classified into five categories. 4. We finally selected 17 medicinal herbs from the 11 candidates. 5. Eleven candidate anti-aging Joobang(酒方)s and 17 medicinal herbs proposed in this study have the potential to reduce the time required for experimental and clinical research for developing novel compounds with anti-aging effects.

• Applied Biological Chemistry
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• 제38권1호
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• pp.83-89
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• 1995

전통식 된장 제조방법으로 널리 이용되고 있는 메주의 염수침지 방법을 개량식 된장 제조방법의 전처리 과정에서 도입하여 제조한 쌀된장을 $32^{\circ}C$에서 숙성 시킨 것과 $15^{\circ}C$에서 30일 숙성 후 $32^{\circ}C$에서 30일 숙성시킨 것으로 구분하여 숙성기간에 따른 일반 성분과 미생물 균수 변화 및 색도를 측정한 결과는 다음과 같았다. 염수침지에 의한 침지식의 경우 숙성 기간에 따라 pH의 감소가 완만하였으나, 염수침지가 생략된 비침지식은 $32^{\circ}C$ 숙성 초기에 pH가 급강하 하여 숙성 60일후 pH 5.1의 수준을 보였다. 환원당의 변화는 전처리 방법 및 숙성온도에 관계없이 숙성 초기에 증가하여 숙성 $30{\sim}50$일에 최대치를 보인 후에 감소하였다. 수용성 질소, 포르몰태 질소, 암모니아태 질소 및 아미노태 질소 함량의 경우 저장온도에 따른 변화보다는 전처리 방법, 즉 염수침지 여부에 따른 변화가 더 컸다. 숙성이 완료된 된장의 색도는 전처리 방법에 따른 영향을 받을 뿐만 아니라 숙성온도에 따라 많은 차이를 보였다. 숙성기간에 따른 각 종류별 쌀된장의 세균수는 숙성온도에 따라 큰 변화가 없으나 진균수는 숙성온도에 따른 많은 차이점을 나타내었다. 이상의 결과로 보아 개량식 쌀된장 제조방법에 염수침지과정을 도입할 경우, 색도의 차이는 있으나 전반적으로 숙성기간 및 숙성온도에 따른 특성 변화가 적어 숙성과정에 의한 영향보다는 침지과정에 의해 쌀된장의 특성이 주도됨을 알 수 있었다. 또한 숙성초기의 질소화합물 함량이 매우 높으며, 이러한 경향은 숙성 60일까지 유지되어 결국 50일간의 염수침지 기간을 감안하더라도 개량식 쌀된장에 비해 짧은 제조기간으로 높은 숙성도를 유지할 수 있을 것으로 사료된다.

• 펄프종이기술
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• 제44권6호
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• pp.50-57
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• 2012

In this study, the beeswax extraction methods using organic solvents were examined to develop a optimal dewaxing technology for beeswax-treated Hanji. Thermally-aged beeswax-treated Hanji was dewaxed using four types of extraction methods including dipping, Soxhlet extraction, ultrasonic washing and shaking methods. Then, the aging stability of the dewaxed Hanji was evaluated in terms of variations in paper strength and in the color of the printed area with muk. The experimental results suggested that the dewaxing methods allowing solvent to flow during extraction showed superior extraction efficiency. The dipping method in which the organic solvent does not flow showed the slowest extraction rate of beeswax compared to three other methods. In terms of variations in tensile strength and folding endurance, however, no obvious differences in the aging stability were observed amongst these four extraction methods. Regarding the aging stability in terms of the color of the printed area with muk, Soxhlet extraction method showed the best performance of dewaxing.

• 근관절건강학회지
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• 제26권3호
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• pp.175-183
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• 2019

Purpose: This is a descriptive research examining the relationships between aging anxiety, perceived level of successful aging, and preparation for aging as well as factors influencing preparation for aging. Methods: Subjects of this study were 221 women aged between 40 and 59 years residing in area J. Data were collected from October 27, 2017 to November 9, 2017, using a structured questionnaire. The collected data were analyzed using the statistical program SPSS/WIN 24.0. Results: Regression analysis revaled that factors having a significant effect on the preparation for aging of the subjects were age, perceived health status, exercise, leisure activity, aging anxiety, and perception of successful aging. The total explanatory power was 42.3%. Conclusion: Based on the results of this study, it was found that aging anxiety and successful aging influenced the preparation for aging of middle-aged women. Therefore, it is necessary to develop a nursing intervention that properly manage aging anxiety and improves successful aging, in order to encourage middle-aged women to actively prepare for their later lives.

• 한국자동차공학회논문집
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• 제9권2호
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• pp.202-209
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• 2001

As a part of stringent emission regulations, OBD on a converter is requested by EU and CARB. It demands that MIL is light-on to inform the failure to the driver when the converter is failed in its function. Usually dual oxygen sensor method is used for converter OBD. For this, detail methods, like amplitude ratio, time delay and frequency ratio methods are adapted for vehicle application. Actually, the cars produced later than MY94 for US market are using one of these methods. In this study, OSCs of converters are investigated with an absolute measuring method. The converters are aged with a furnace aging, an engine bench aging and vehicle aging method to represent various aging condition in field applications. An OBD index that is used for TLEVs regulation is also investigated to find a relation between two parameters. The relations of these parameters with THC emission on vehicle are evaluated.

• 한방안이비인후피부과학회지
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• 제27권1호
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• pp.45-57
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• 2014

Objective : The purpose of this study is to understand aging and skin aging with both western and Korean medicine. Methods : We investigated the comprehension of general aging and skin aging in both western and Korean medicine through literature review. Result : The results are as follows. 1. Aging in western is a complex process influenced by telomere shortening and damage to cellular DNA. In Korean medicine, it is supposed that decline of interaction between yin(陰) and yang(陽) makes aging. 2. Skin aging in western medicine consists of intrinsic aging and extrinsic aging. In Korean medicine, skin aging goes with the aging of whole body and distinctive features of geroderma notice the unbalance of the whole body function. 3. Generally geroderma has decreased development of cells and low immunity, which is the function of kidney(腎) in Korean medicine. Conclusion : Further studies are needed to apply comprehension of skin aging in Korean medicine to clinical stage.

• 한국도로학회논문집
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• 제7권1호
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• pp.1-9
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• 2005

본 연구는 재생 아스팔트 혼합물의 취 약 특성을 파악하고 이를 보완하기 위한 기초연구이다. 본 연구의 목적은 재생혼합물 내의 신 구 재료에 묻어 있는 바인더의 노화상태를 균등하게 할 수 있는 여러 가지 혼합방법을 제안하고 바인더의 노화특성을 개선하기 위한 방안을 제시하는 것이다. 재생혼합물의 굵은골재 및 매트릭스의 바인더 노화특성 분석은 Gel-permeation chromatography(GPC)를 통해 수행되었다. 재생혼합물 내 바인더의 노화상태 분석을 위한 혼합물 제조에는 원형골재(13mm 강자갈)가 굵은골재로 사용되어 RAP 굵은골재와의 구분이 용이토록 하였다. GPC를 통한 재생혼합물 내 바인더의 노화상태를 분석한 결과 신 구 바인더의 노화 정도에 차이가 있음을 확인하였다. 따라서 이를 개선하기 위해 본 연구에서는 5가지 혼합방법(AE)을 검토하였으며 D방법(RAP과 신규바인더를 선 비빔 후 신규골재 투입)에 의한 혼합방법의 개선으로 재생혼합물 내의 노화 정도의 차이가 크게 작아지는 것으로 나타났다.

• KIEE International Transactions on Power Engineering
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• 제5A권4호
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• pp.322-330
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• 2005

This paper proposes methods to incorporate station related aging failures in composite system reliability assessment. Aging failures of station components, such as circuit breakers and bus bars, are a major concern in composite power system planning and operation as an increasing number of station components approach the wear-out phase. This paper presents probabilistic models for circuit breakers involving aging failures and relevant evaluation techniques to examine the effects of station related aging outages. The technique developed to incorporate station related aging failures are illustrated by application to a small composite test system. The paper illustrates the effects of circuit breaker aging outages on bulk system reliability evaluation and examines the relative effects of variations in component age. System sensitivity analysis is illustrated by varying selected component parameters. The results show the implications of including component aging failure considerations in the overall analysis of a composite system.