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Selection of superior strain and optimal sawdust medium of Grifola frondosa
Jeong-Han Kim,Jeong-Hyun Chi,Sun-Yee Won,Geon-Sik Seo,Young-Cheol Ju 한국버섯학회 2007 한국버섯학회지 Vol.5 No.3·4
This study was carried out to obtain basic data on physiological characteristics for an artificial cultivation of Grifola frondosa. Ten strains of G. frondosa were collected from Korea, China and Japan and those were isolated and tested. PDA medium was selected for the favorable culture medium. The optimal conditions for the mycelial growth of G. frondosa were 25℃ and pH 4∼5 respectively. The carbon and nitrogen sources for the optimum mycelial growth were fructose and peptone, respectively. Highest mycelial growth was observed when the C/N ratio was 10∼20. Significant differences among lines were found for production yield and crop cycle time. KME44009 had a short spawn run time, high yield, good color and quality compare with other strains. To find out the suitable medium composition of G. frondosa, physicochemical conditions were investigated. The T2 formulation (55:25:8:12 mixing ratio of oak sawdust, oak chip, wheat bran and soybean cake) showed the shortest time to complete the crop cycle and the highest yields(weight of fresh mushrooms harvested at maturity). Among the physicochemical factors, pH, crude oil and total nitrogen may affect mushroom yield. Therefore, development of suitable medium would benefit from increased production efficiency of G. frondosa mushrooms and be commercial potential.
농촌관광마을의 역사·문화·관광 자원 발굴을 통한 충주시 엄정면 관광활성화방안에 관한 연구
김한이(Kim,Han-Yee),김용진(Kim,Yong-Jin),이수미(Lee,Su-Mi),박경의(Park,Kyung-Eui),정지영(Jeong,,Ji-young),이소정(Lee,So-Jeong),신유진(Shin,Yu-jin),김유진(Kim,Yu-Jin) 대한건축학회 2017 대한건축학회 학술발표대회 논문집 Vol.37 No.2
The purpose of this study was provide basic data that can be used to establish future rural planning. In addition, I would like to suggest ways to characterize rural tourism by space. Review advanced research and case studies of excellent villages, and survey and classify local resources of the site. Express the status of local resources held using GIS. Finally, we propose a plan to revitalize rural tourism by space. The results of this study were as follows; we have propsed a space-specific strategy by distributing tourism functions in ecotourism recreation type, traditional history type, and multicultural type. It is excted that it will be used as a reference material for establishment of rural tourism plan.
Effect of fruiting body growth of G. frondosa by light condition and CO2 concentration
Jeong-Han Kim,Sun-Yee Won,Geon-Sik Seo,Young-Cheoul Ju 한국버섯학회 2008 한국버섯학회지 Vol.6 No.2
To elucidate optimum environmental condition for artificial cultivation of Grifola frondosa, light condition and CO2 concentration have been examined. First, the effects of light quality(blue, green, white) and light intensity(200, 500, 800, 1200 lux) on primordia formation, fruit body yield and morphological properties of Grifola frondosa in bag culture method were tested. Among different color fluorescents, white light(400∼620 nm) had a high mushroom yield(242 g) and a shorter cultivation period(52 days) In particular, morphological properties of G. frondosa using blue light(400∼560 nm) was obtained a wide and deep colored pileus. We also investigated that the appropriate light intensity for production of G. frondosa. The experimental results indicated that 500 lux light was the most effective on mushroom production, whereas, primordia formation was effective at 200 lux. In summary, we propose that the optimal light condition for the bag culture of G. frondosa is white source of fluorescent light and 500lux of light intensity. Second, G. frondosa were cultivated at four CO2 level, 500, 800, 1000, and 1500 ppm after spawning. Comparison in production of fruit body in G. frondosa better result were obtained at lower CO2 levels below 800 ppm. The higher ratio of primordia formation, faster time of primordia initiation and days to harvest(57 days), higher yields and quality of fruit body at lower CO2 levels below 800 ppm than higher that over 1000 ppm, whereas shape of fruit body at higher CO2 levels over 1000 ppm were showed abnormal and lower quality.
Jeong Yee Bae,Min Yeong Kwak,Eun Ha Kim,Su Mi Kang,Han Na Yi 위기관리 이론과 실천 2020 Crisisonomy Vol.16 No.1
정신보건법 개정 이후 정신질환자 탈원화와 지역사회 유입에 대한 우려가 커지고 있으며 최근 정신질환자에 의한 살인 사건이 잇따르면서, 정신질환에 대한 편견은 더욱 심화되고 있다. 따라서 본 연구에서는 정신질환자에 대한 부정적인 태도를 개선하기 위하여 영화기반 정신질환 인식개선 프로그램을 개발하고 예비의료인인 간호대학생에게 적용하여 효과를 검정하고자 하였다. 본 연구는 간호대학생을 위한 영화기반 정신질환 인식개선 프로그램을 개발 및 적용하고, 효과를 검정하기 위한 비동등성 대조군 전·후 설계를 이용한 유사실험 연구이다. 영화기반 정신질환 인식개선 프로그램에 참여한 실험군은 대조군보다 정신질환자에 대한 권위주의, 사회생활 제한 점수가 감소하였고, 자비심, 지역사회정신보건 이념 점수가 증가하였다. 영화기반 정신질환 인식개선 프로그램은 간호대학생의 정신질환자에 대한 태도 변화에 효과적인 중재임이 확인되었다. 본 연구 결과를 바탕으로 전국민적 인식개선을 위하여 다양한 집단을 대상으로 확대 적용할 필요가 있으며, 개인의 성향 차이를 고려하고 반복측정을 통해 프로그램 효과의 지속성을 검정하는 추후연구를 제언한다. The purpose of this study is to develop and apply a movie-based program to university nursing students to improve their negative awareness of mentally ill persons. The study used a quasi-experimental pretest-posttest design with a nonequivalent control group. The program decreased the scores of authoritarianism and social restrictiveness toward mentally ill persons and increased the scores of benevolence and community mental health ideology among the experimental group than the control group who did not participate in the program. The movie-based mental illness awareness improvement program was found to be an effective intervention in improving the attitude of university nursing students toward mentally ill persons. Based on the results of this study, it is necessary to expand the application of this program to various groups to promote national awareness. In addition, it is suggested that long-term follow-up studies should be conducted to consider individual personality differences and verify the persistence of the effects through repeated measurements.
Jeong Yee Bae,Min Yeong Kwak,Dong Su Han,Yoon Jung Kim 위기관리 이론과 실천 2016 Journal of Safety and Crisis Management Vol.6 No.1
Purpose: This study, by providing the psychological support program to the adolescents who have witnessed traumatic events (drowning incidents), was attempted to determine the influence on the adolescents’ anxiety, hostility and post-traumatic stress. Methods: The design of this study was a nonequivalent control group pretest-posttest design. There were 32 participants in the experimental group and 25 in the control group. Psychological Support Program was used as the experimental treatment from June 18 to July 16, 2015. The experimental group received psychological support program intervention 4 times. Data were analyzed using ?? -test, independent t-test and paired t-test using the SPSS programs. Result: The post-value of the extent of anxiety, hostility, and post-traumatic stress, after carrying out the psychological support program in both experimental and control groups, was slightly more reduced than the prior-value, but didn t show a statistically significant difference between the two groups. Conclusion: In order for a continuous effects of the psychological programs for the adolescents who have witnessed traumatic events, should not just end up with an application of the short-term program, but should do a long-term follow-up studies considering the avoidance of adolescents’ self-expressions.