• 한국포장학회지
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• 제24권2호
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• pp.57-64
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• 2018

This article delves into the current status of various packaging technologies, which are currently being applied or are under development for the shelf-life extension and quality improvement of fresh and processed meat products. Traditional packaging methods include vacuum packaging, modified atmosphere packaging, and air-permeable packaging. Recently, innovative packaging methods have been introduced that utilize technologies such as barrier-films, active packaging, nanotechnology, microperforated films, far-infrared radiations, and plasma treatment. All of these packaging methods have their own merits and drawbacks in terms of shelf-life and quality maintenance. A right choice of packaging system for fresh and processed meat products must be made in accordance with the conditions of the raw material, storage, and distribution in the market and household, and while considering the environmental sustainability and consumer's expectations.

• 농촌지도와개발
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• 제14권2호
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• pp.395-415
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• 2007

The purposes of this study were to investigate the realities of community participation of young farmers and to suggest measures to activate community participation. The data were collected from 234 young farmers from rural Korea. With SPSS 13.0 program for Windows, Frequency, t-test, ANOVA, LSD for post-hoc interpretation and Factor Analysis were employed to analyze the data with statistical significance level of .05. The main results of the study and suggestions were as follows: 1) Young farmers were more likely to participate in watching television on community, discussion with others and internet search for community, while, rural youths were less likely to participate in contacting government and parliament. 2) Difficulties of community participations of young farmers were lack of time and insufficient information about participatory activities. The study suggested that young farmers should get more opportunities to participate in diverse types of active opportunities and practical information.

• 농촌지도와개발
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• 제19권1호
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• pp.29-48
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• 2012

Many of the urban people wish to move to rural area to avoid urban problems like pollution, crowdedness, crime and after their retirement. The purpose of this study was to analyse of adaptation of inmigration in rural community. For this purpose, data were collected from 239 migrations to rural area. The major findings of this study are as follows: 1) 32.0% of respondents wished to move to rural area that they were expected for countryside life, 2) 68.1% of respondents had experience to visit farmer's house 3) 49.5% of respondents agreed to rural community person is good 4) many person of migration to rural area(74.5%) have the idea that they should be active participation for community volunteer work 5) migration people was wanted to take care of them by natives in rural community on the lonely time.

• 농촌지도와개발
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• 제16권2호
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• pp.439-461
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• 2009

The aim of this study is to make abolished school utilized to be served for promotion of off-farm incomes, vitality of agriculture and rural communities' economic, i.e. directly related in inhabitants' income. The methods of this study was to classify the types of utilization via analysis of abolished school data base which served by Ministry of Education & Human Resources Development. Moreover, we tried to derive problems of management and the existing system via interview survey of the nation's best 100 executives who utilize abolished school and present active factors of abolished school utilization and improvement directions. Then, we classified types of the idle agricultural land utilization into categories and selected the survey site which were the best on the idle agricultural land. Then, we suggests utilization and improvement directions to the use and management of idle agricultural land for increasing inhabitants' income, vitality of agriculture and rural communities' economic.

• 한국균학회지
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• 제37권2호
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• pp.167-172
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• 2009

Mycelia of Pleurotus ostreatus, Phellinus linteus, Ganoderma lucidum and Lentinus edodes were cultured in the selected cereals to generate functionally active cereals. The optimum water contents for the mycelial growth were 50%(wt/wt) for brown rice, barley and soybean and 75% for wheat and corn, respectively. P. ostreatus grew well in the most cereals while the mycelial growth of P. linteus, G. lucidum and L. edodes in soybean were siginificantly retarded. The contents of β-glucan and glucosamine in the mycelial cereals were determined. Wheat cultured with mushroom mycelia showed high ß-glucan content. Especially, wheat with G. lucidum contained the highest value of 26.16%. Soybean cultured with G. lucidum showed two-fold increase in glucosamine content with 9.63% of total mass while wheat showed 7.91%. Overall, wheat cultured with G. lucidum was the best functional cereal in terms of β-glucan and glucosamine contents.

• 농촌지도와개발
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• 제30권4호
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• pp.199-212
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• 2023

Recently, despite the active interest and research on biochar, there is a lack of research on the acceptance intention of farmers, who are technology adopters. Accordingly, the purpose of this study was to conduct a survey of 168 farmers and structurally analyze the factors affecting farmers' intention to accept biochar. The analysis results are as follows. First, promotion conditions and network effects have a positive influence on farmers' intention to accept biochar. Second, the mediating variable, network effect, has a complete mediating effect between performance expectations, social influence, and acceptance intention. This suggests that organizations need to be utilized to spread biochar because network effects increase the explanatory power of acceptance intention.

• 한국전문물리치료학회지
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• 제12권2호
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• pp.73-80
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• 2005

We investigated the activation of the cerebral cortex during active movement, passive movement, and functional electrical stimulation (FES), which was provided on wrist extensor muscles. A functional magnetic resonance imaging study was performed on 5 healthy volunteers. Tasks were the extension of right wrist by active movement, passive movement, and FES at the rate of .5 Hz. The regions of interest were measured in primary motor cortex (M1), primary somatosensory cortex (SI), secondary somatosensory cortex (SII), and supplementary motor area (SMA). We found that the contralateral SI and SII were significantly activated by all of three tasks. The additional activation was shown in the areas of ipsilateral S1 (n=2), and contralateral (n=1) or ipsilateral (n=2) SII, and bilateral SMA (n=3) by FES. Ipsilateral M1 (n=1), and contralateral (n=1) or ipsilateral SII (n=1), and contralateral SMA (n=1) were activated by active movement. Also, Contralateral SMA (n=3) was activated by passive movement. The number of activated pixels on SM1 by FES ($12{\pm}4$ pixels) was smaller than that by active movement ($18{\pm}4$ pixels) and nearly the same as that by passive movement ($13{\pm}4$ pixels). Findings reveal that active movement, passive movement, and FES had a direct effect on cerebral cortex. It suggests that above modalities may have the potential to facilitate brain plasticity, if applied with the refined-specific therapeutic intervention for brain-injured patients.

• 대한토목학회논문집
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• 제35권4호
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• pp.897-905
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• 2015

본 연구에서는 충격파 모형을 이용하여 능동식 우선신호의 최적 신호시간을 산정하기 위한 모형을 제시하였다. 본 신호 최적화 모형을 이용하여 능동형 우선신호 기법 중 Early green 및 Green extension이 적용되는 조건에서 충격파 면적을 산정할 수 있다. 본 연구에서는 평균통행시간 및 교차로 진출시각을 이용해 충격파의 발생 속도를 산정하기 위한 방법을 제시하였으며, 이를 이용해 우선신호로 인한 현시 변화량에 따라 충격파 면적 변화량을 산정할 수 있다. 또한 교차로 전체의 충격파 면적이 최소화되는 신호시간을 산정하여 우선신호로 인해 증가하는 일반차량의 지체를 최소화할 수 있도록 하였다. 우선신호 신호시간 산정 모형의 효과평가를 위해 VISSIM과 ComInterface를 이용한 미시적 시뮬레이션 분석을 시행하였으며, 이동류의 포화상태를 고려하여 지체 최소화를 위한 신호시간이 산정됨을 확인하였다. 독립교차로를 대상으로 하는 사례분석에서 우선신호를 위해 비우선현시를 균일하게 단축하는 전략 대비 본 모형에서 일반차량 지체가 10% 이상 개선됨을 확인하였다. 본 연구는 트램, BRT, 중앙버스 전용차로 등 대중교통 우선시설이 확산되고 있는 최근 국내 상황에서 신호교차로의 운영효율을 높이기 위한 새로운 우선신호 제어 방법을 제시하였다는데 의의가 있겠다.

• 지질공학
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• 제8권1호
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• pp.35-49
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• 1998

양산단층의 구조운동사를 해석하기 위하여 양산단층의 주향을 따라양산시에서 경북 신광면까지 37개 지점에서 단층조선이 발달된 약 1,000개의 소단층과 330개의 인장절리를 분석하였다. 그 결과 순서별로 (I)NW-SE 신장, (Il) ENE-WSW 압축과 NNW-SSE 신장, (III) NW-SE 압축, (VI) NNE-SSW 신장, (V) E-W 압추과 N-S 신장, 그리고 (VI) NNE-SSW 압축과 신장의 6개의 지구조 사건이 복원되었다.이렇게 얻어진 6개의 순차적인 지구조 사건으로부터 북북동향하는 양산단층의 운동를 해석할때, 양산단츠의 형성 초기에는 NW-SE 신장기를 갖는 지구조 사건 (I)과 연관된 인장절리가 발달하였고, 후에 지구조 사건(I)과 매우 밀접한 사건(Il)에 의해 우수향 주향이동을 하였다. 이러한 운동은 마이오세 말까지 지속되었으며, 이 시기가 양상단층이 가장 활발이 운동했던 시기로 해석된다. 후속되는 지구조 사건(III)과 (VI)에 의해 양상단층은 좌수향 주향이동을 하였다. 그 후 양산단층의 운동은 단층주향에 직각으로 작용하는 사건 (V)에 의해 일시적으로 접지도었다. 이기간은 시기적으로 매우 일시적이었으며 응력의 크기도 역기 작은 것으로 판단된다. 마지막으로 지구조 사건 (VI)에 의한 미약한 신장 혹은 우수향 주향이동을 하였다.

• 한국식품영양학회지
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• 제30권5호
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• pp.973-982
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• 2017

Gastrodia elata Blume often has been used for the treatment of headaches, convulsions, hypertension, and neurodegenerative diseases. The main active constituents are gastrodin, 4-hydroxybenzyl alcohol, vanillyl alcohol, 4-hydroxybenzylaldehyde and parishin A, B, C and E. Because Gastrodia elata has also unacceptable off-odor (swine barnyard-like) for food, there is a need to reduce it as well as allow for greater utilization as a functional food materials. In this study, a major off-odor producing substance of Gastrodia elata was fractionated by steam distillation and silica gel column chromatography. The substance was identified as p-cresol(4-methyl phenol) by GC-MS analysis and comparison of the retention time with that of an authentic compound in GC. The content of p-cresol in fermented Gastrodia elata was decreased. A fermented sample of Latobacillus sakei for 2 days was reduced to 54.7%, when compared with a unfermented sample. The five parishin derivatives in Gastrodia elata were identified by HPLC-MS analyses, and a comparison of HPLC retention times with those of authentic compounds. When compared with parishin derivatives of an unfermented Gastrodia elata, those of Gastrodia elata fermented by L. sakei, increased to 18.3% for 2 days. Increases of about 14.0~38.4% of the total phenolic compounds and 57.4~77.3% total flavonoids were found in fermented extracts, by 3 lactic acid bacteria strains. They were compared with $97.1{\pm}2.9{\mu}g/g$ and $40.9{\pm}2.0{\mu}g/g$ in the unfermented control, respectively. The extracts of Gastrodia elata Blume that were fermented by lactic acid bacteria had higher DPPH free radical scavenging activity and FRAP reducing power than the unfermented control.