• Journal of Animal Science and Technology
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• 제58권5호
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• pp.20.1-20.11
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• 2016

The present review has mainly focused on the specific parameters including aging (aging days, temperature, relative humidity, and air flow), eating quality (flavor, tenderness and juiciness), microbiological quality and economic (shrinkage, retail yields and cost) involved beef dry aging process. Dry aging is the process where beef carcasses or primal cuts are hanged and aged for 28 to 55 d under controlling environment conditions in a refrigerated room with $0^{\circ}$ to $4^{\circ}C$ and with relative humidity of 75 to 80 %. However there are various opinions on dry aging procedures and purveyors of such products are passionate about their programs. Recently, there has been an increased interest in dry aging process by a wider array of purveyors and retailers in the many countries. Dry aging process is very costly because of high aging shrinkage (6 to 15 %), trims loss (3 to 24 %), risk of contamination and the requirement of highest grades meat with. The packaging in highly moisture-permeable bag may positively impact on safety, quality and shelf stability of dry aged beef. The key effect of dry aging is the concentration of the flavor that can only be described as "dry-aged beef". But the contribution of flavor compounds of proteolysis and lipolysis to the cooked dry aged beef flavor is not fully known. Also there are limited scientific studies of aging parameters on the quality and palatability of dry aged beef.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 1999년도 춘계학술대회 논문집
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• pp.214-217
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• 1999

Polymeric composite insulators have been in use for outdoor insulation. However, our knowledge about their long-term performance in a outdoor environment is still very limited. Especially, these insulator are subjected to the environmental stress such as ultraviolet radiation. Hence, in this paper. the influence of UV radiation on the aging of the shed materials was evaluated. For the aging evaluation, these insulators studied by experiment methods such as contact angle measurement. oxidation induced time. SEM/EDX, FTRI-ATR, tracking test for the different insulator samples. With the increased UV exposure time, samples are shown to exhibit degradation comparable to those of new ones

• 스마트미디어저널
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• 제12권11호
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• pp.175-184
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• 2023

농촌 지역 노인들은 거주 환경이 열악하고 사회성이 떨어지며 노후지식이 부족한 곤경에 직면하고 있다. 이와 더불어 부족한 사회보장시설 및 의료시설의 문제로 인해 농촌에 거주하는 노인들의 자살률은 도시보다 훨씬 높다. 편안한 지역사회 환경을 통해 농촌 지역 노인들이 긍정적인 마음을 가지고 이를 통해 날로 심각해지는 고령화 문제를 해결하기 위해서 연구자는 간쑤성 톄러우향(甘肅省鐵樓鄕) 바이마장족(白馬藏族) 노인들의 지역사회 환경을 연구대상으로 하여 지역사회 환경의 개선 방안을 연구했다. 선행연구로써 농촌 지역사회 환경의 고령친화적 개선에 대한 연구를 살펴보고 이를 통해 이론적 배경으로써 ERG 이론을 본 연구의 이론적 근거로 삼았다. 연구방법으로써 현지 조사 및 인터뷰를 통해 바이마장족 거주 지역의 독거노인 수를 조사하고 국가 표준을 근거로 분류했다. 그리고 노인들의 현재사회 환경 현황이 드러난 사진을 수집하고 이를 통해 파악된 문제를 종합했다. 마지막으로 ERG 이론의 세가지 욕구인 생존 욕구, 관계 욕구, 성장 욕구의 세 가지 측면에서 노인들의 지역사회 환경을 분석하고 이에 대한 고령친화적 개선 방안을 마련했다. 본 연구의 목적은 지역사회 환경의 고령친화적 개선을 통해 노인의 생활환경, 사회성 및 생존력을 향상 시키며 이를 통해 노인들의 노후 생활에 즐거움을 더하는 데에 있다.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제20권4호
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• pp.81-89
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• 2014

Purpose : An aging phenomenon was recognized as only negative aspect, which impediment a development with the decrease of a developing population and increase of social burden. Nevertheless, the problem of aging cannot be treated as a problem of individuals or social burden. Because Every mankind sometime will be the person directly involved the aging. Methods : Korea, predict to reach the aging society with over 20 percent of elderly in the whole population in 2020, should find an active political plan for responding. Because a previous discussion about the aging phenomenon focused on social welfare, the housing plan for the elderly with a consideration of the physical environment for sustaining elderly's life with happiness will be primary task. Results : This research considers housing policy, focusing on the medical service. It is because statistics, which 85 percent of elderly people suffer from chronic diseases because of physical aging signify the importance of medical service to the elderly in every-day-life. Implications : We prescribe the elderly as a population over 65. In this duration, the elderly retirees from the workplace e and spend the majority of time in their home. Thus, for the elderly, the residential space is a field of action and passageway connecting with the surroundings For the solution of physical space preparing the aging phenomenon, the combination of residential and medical function creates a new type of a lifestyle.

• 한국작물학회지
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• 제46권4호
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• pp.325-327
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• 2001

Tobacco (Nicotiana tabacum L. cv KF109) seeds were artificially aged in a controlled environment of 45$^{\circ}C$ and 80% relative humidity condition for different duration up to 14 days before priming in polyethylene glycol 6000 solution of equivalent osmotic potential of -0.8 MPa for 8 days at $25^{\circ}C$. The seeds aged only and primed after aging were germinated at 15$^{\circ}C$ and $25^{\circ}C$ to observe the priming effects on the germination of aged seeds at different temperature. The germination percentage of the aged seeds was rapidly dropped starting from 8 days of aging and mean germination time (T$_{50}$) was greatly increased, particularly in germination at 15$^{\circ}C$. The germination capacity was greatly restored in the primed seeds after aging, particularly in the seeds of longer aging and germinating at 15$^{\circ}C$.>.

• 한국실내디자인학회논문집
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• 제14권3호
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• pp.156-164
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• 2005

Like other countries undergoing the aging of the population, increases in the aged population have raised serious issues in Korea. The proportion of elderly will be foreseen over $14\%$ of population in 2019, over $20\%$ in 2026 in korea. Due to the rapid increasing in the aged population, it calls for social countermeasures urgently, And recent researches about attitude to the aged find out in general negative attitude to the aged of other generations. It is thought desirable that comprehension to the aged of the commonalty should be educated on the school basis or a variety of informal ways. The study aims to determine the space formation of the senior simulation center that suggest to be considered for the effective education and preparation for the aging of all social members, particularly for the younger generation. In such space formation, it is important to work out a plan of efficiency education according to the systematic environmental setting with a focus on the minimization of problematic behaviors and living disabilities of aging, as interactive experiences gain malfunctions by aging. This study is expected to promote a focus on the integration of the whole generations and improved design management for the environment of a welfare policy for the aged.

• KIEAE Journal
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• 제11권5호
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• pp.119-127
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• 2011

The aging population has been increasing in Korea so that it is difficult for people to understand the change of the future society. This study aimed to analyze the characteristics of preliminary retiree's alternative housing preference by providing an accurate information about residential current issues and the seriousness brought by the aging society. It explained the visual information about the aspect of the residential change due to the aging society to 104 preliminary retirees who live in the apartment in Seoul. It surveyed the characteristics of the alternative housing preference following 4 situations of the Old age type(couple/healthy, couple/ill, single/healthy, single/ill). It analyzed the difference of housing preference before and after providing information. The results are as follows: First, a previous apartment is not enough to prepare the aging society and UIBS(unit insertion building system) for the elderly was expected to be a great help to the frail after 2026. Second, the preference of UIBS was increased after providing information of the aging society. Third, in the case of the illness, a big city with medical facilities was preferred not to move in the suburb. Fourth, after providing information, a small size of apartment was preferred but the preferred change of housing ownership was not founded. Last, there was considerable difference before and after providing information under 4 situation of Old age type. These results showed the feasibility of coping with more accurate future society only if a survey should be taken with providing sufficient information about the aging society.

• 급식외식위생학회지
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• 제3권1호
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• pp.8-18
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• 2022

Dry-aging is one of the traditional aging processes, especially for beef. This aging process is being popular, because it produces unique brown/roasted flavor and texture that consumers prefer. However, as it is exposed to outside without packaging food safety concerns have been raised. The objective of this study was to investigate the presence of total aerobic bacteria (TAB) and pathogenic bacteria in manufacturing environment and suggest the safety management plan for the production of dry-aged meat. Surface samples from 66 environmental and 6 beef carcass samples were collected. According to the monitoring results, the contamination levels of TAB were in the order of shelves (5.4±1.1 Log CFU/cm²), cotton gloves (2.9±0.2 Log CFU/cm²), and door knobs (2.8±0.4 Log CFU/cm²) in the dry-aging room. In the door knobs, the level of mold was higher than that of yeast. These results indicate that the mold spores may be cross-contaminated with environmental factors inside the aging room. The risk factors that may occur during the manufacturing process were presented and possibility of risk was determined. From the aspect of microbiology, aging and trimming steps were determined as the critical control points. The temperature of the aging room should be maintained below 10℃ and the humidity below 75-85%. Based on the monitoring and the risk assessment of the dry-aging process, we prepared the safety management plan for the production of dry-aged meat, and it should be useful in improving the food safety of dry-aged meat.

• KIEAE Journal
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• 제7권1호
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• pp.5-13
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• 2007

Since aging has become one of most hot and serious issues in the whole global world, universal design as a strategic concept to enable the elderly age in place has received much attention and its importance is getting recognized. Japan has undergone the Aging phenomenon much earlier than Korea and other countries. During that time, through much trials and errors, it accumulated the wisdoms and techniques to precede aging friendly environment and products. Therefore current Japan house is a comprehensive setting which embraces lots of universal design features that has a valuable implication for Korean development that faces fast aging future. The purpose of this study was to delineate characteristics of universal design features appeared in Japanese Model houses. One site of housing park in the city where various model houses of representative housing construction companies was selected as a cluster area for data collecting. Data were collected mainly through field survey at the housing park of Tokyo during November, 2006, and additional data were collected through website and company information of relevant company. Universal design features were extracted for 17 houses of the housing park and sorted and analyzed according to the analysis frame. The frame were made using 2 major clusters; space area, and 8 universal design principle. Results showed a range of universal design feature and its detail universal design principle satisfied. The 8 principle currently developed became to house realistic practical examples and theory became proved its impractical power. The academic, educational and industrial implication were documented.

• 한국소음진동공학회논문집
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• 제26권4호
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• pp.449-457
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• 2016

Cylindrical array sensor of a surface ship to detect an enemy is normally installed in the sonar dome. Reflected signals by some structures inside the sonar dome make unwanted signals. To minimize unwanted signals, acoustic baffles are used. Acoustic baffles are hard to install and replace, so the durability of acoustic baffles is an important design parameter. To verify the durability of acoustic baffle, accelerated aging tests according to temperature and pressure were performed. Acoustic baffle specimens were made and they are tested the visual and the performance (echo reduction and transmission loss) inspection before and after aging. After the inspection, the effect of accelerated aging of the acoustic baffles were discussed.