Effect of Plant Growth Regulators on Clonal Production through Basal Stem Explant Cultures of a Phalaenopsis Hybrid

Jo,Man-Hyun,Ham,In-ki,Park,Sang-kyu,Seo,Gwan-Seok,Han,Gyu-Heung,Woo,In-Shik 한국자원식물학회 2003 Plant Resources Vol.6 No.2

This study was conducted to develop the clonal propagation technique through in vitro culture using basal stem explants in Phalaenopsis hybrid grown in vitro. The highest frequency of protocorm-like body (PLB) formation was obtained when basal stem explants were cultured on VW medium containing 30g/L sucrose, 500 mg/L activated charcoal, 150 ml/L coconut water, 1 mg/L NAA, 5 mg/L 2iP and 2.5g/L gel rite. PLBs transferred to Hyponex medium were regenerated to plantlets. Plantlets transferred to plastic pots containing spagnum moss were developed and successfully acclimatized under greenhouse. The flower was bloomingly opened in plants regenerated from basal stem explants. The flower was not different from both mother plant and plant induced through clonal propagation of Phalaenopsis hybrid.

Effect of In-row Plant Spacing on Growth and Yield of Korean Native Allium wakegi Araki

Jo,Man-Hyun,Ham,In-Ki,Park,Sang-Kyu,Seo,Gwan-Seok,Han,Gyu-Heung,Woo,In-Shik 한국자원식물학회 2003 Plant Resources Vol.6 No.2

Allium wakegi Araki was grown at plant spacings of 5, 10, 15, and 20 cm to determine the effect of planting density on the growth and yield. Allium wakegi Araki plants grown at the 5 cm plant spacing had the lowest bulb diameter and bulb weight, while plants at the lowest density (20 cm spacing) had the highest bulb diameter, bulb number, bulb weight and fresh weight. In general, plants grown at narrower spacings produced significantly smaller bulb diameter and bulb weight, but resulted in the highest yields and plants per hectare and lower fresh weights per plant.

Using Automated Container Type Culture System Hericium erinaceum Mushroom Production Technology

Woo-Sik Jo1,Sung-Hak Lee,Min-Gu Kang,Who-Won Park 한국버섯학회 2016 버섯 Vol.20 No.2

Time, place, and the high-tech industry to overcome barriers to the fusion of the so-called "smart agriculture" is changing the landscape of agriculture. Precision Agriculture's core temperature, humidity, location information, and summary information in real time, all significant ICT controlling technique. The system is a four-season container production for the mushroom cultivation temperature, humidity, illumination, self-regulation, such as carbon dioxide, the optimal environment for mushroom cultivation was implemented. Hericium erinaceum (also called Lion's Mane Mushroom, Bearded Tooth Mushroom, or Bearded Tooth Fungus) is an edible mushroom and medicinal mushroom in the tooth fungus group. Native to North America, Europe and Asia it can be identified by its tendency to grow all the spines out from one group (rather than branches), long spines (greater than 1 cm length) and its appearance on hardwoods. About 40 days of incubation 1.5kg oak sawdust was used as the test medium bag. The humidity was maintained more than 85~95% and temperature was 18~20°C, and CO2 density was 500~1,000ppm. The days for primordium formation showed us 6~12 days. The amount of fruitbody production was 110~260g per bag. This technique to establish new community support program in conjunction with the international movement, domestic sales and exports are also planned.

대구시 공공디자인의 시민효능감과 만족도 분석

안성조(Ahn, Sung Jo),최영은(Choi, Young Eun),박소정(Park, So Jung),김영희(Kim, Young Hee) 대구과학대학교 국방안보연구소 2020 사회융합연구 Vol.4 No.2

본 연구는 대구시를 사례로 공공디자인의 시민효능감과 만족도를 분석하는 것이다. 이를 위해 선행연구 및 이론 고찰을 통해 광역지방자치단체 공공디자인의 의의를 살펴보았다. 이를 통해 분석모형을 설정하고 공공디자인의 시민효능감과 만족도, 시민만족도의 영향요인을 분석하였다. 분석자료는 공공디자인을 이용하는 대구시민을 대상으로 설문조사를 시행하고 빈도분석, 분산분석, 다중회귀분석을 시행하였다. 분석결과는 다음과 같다. 첫째, 공공디자인의 시민효능감에서 공공공간은 공원이 가장 높았다. 권역별로 살펴보면 칠곡, 팔공은 높은 반면 달성과 시가지는 낮았다. 둘째, 공공건축물은 공공청사가 가장 높았다. 권역별로는 칠곡, 팔공은 높았고 반면에 달성과 시가지는 낮았다. 셋째, 공공시각매체는 교통관련 시각매체가 높았다. 권역별로는 수성, 팔공이 높고 달성이 낮았다. 넷째, 공공시설물은 도로시설물이 높았다. 권역별로는 수성이 높았다. 다섯째, 옥외광고물은 건물부착형 옥외광고물이 높았고 권역은 월배와 수성이 높았다. 여섯째, 공공디자인의 시민만족도 영향요인은 공공공간, 공공시설물, 공공건축물 등의 순으로 나타났다. This study aims at analyzing civil efficacy and satisfaction about public designs with the cases in Daegu City. For this, the meanings of public designs of regional local government were reviewed through the previous studies and theories about them. And then, the analysis model was set based on them, and civil efficacy and satisfaction on public designs and factors of civil satisfaction were analyzed. The data for the analysis were collected from the surveys on Daegu citizens who use the public designs there, and frequency analysis, ANOVA, and multople regression analysis were conducted. The analysis results are as follows. First, for civil efficacy about public designs, public spaces were highest in park. By area, Chilgok and Palgong were higher while Dalseong and the downtown Daegu were lower. Second, for public buildings, public government buildings showed the highest values. By area, Chilgok and Palgong were higher while Dalseong and the downtown Daegu were lower. Third, for public visual media, traffic-related visual media were higher. By area, Suseong and Palgong were higher while Dalseong was lower. Fourth, for public facilities, road facilities were higher. By area, Suseong showed the highest. Fifth, for outdoor advertisements, those attached on buildings were higher, and Wolbae and Suseong were higher by region. Sixth, for the factors of the civil satisfaction about public designs, public spaces were highest and then public facilities and public buildings followed in order.

스노우파크 공조 및 폐열회수 시스템

김영한(Kim Young Han),박성빈(Park Sung Bin),정성화(Jung Sung Hwa),조현근(Jo Hyun Guen),조종선(Cho Jong Sun) 대한설비공학회 2013 대한설비공학회 학술발표대회논문집 Vol.2013 No.6

The presentation is the HVAC system in the Goyang ONEMOUNT snow park. The content consist of Architectural overview, design criteria, heat source equipment and air-conditioning system and waste recovery system explanation.

Nanogenerators: Fully Rollable Transparent Nanogenerators Based on Graphene Electrodes (Adv. Mater. 19/2010)

Choi, Dukhyun,Choi, Min-Yeol,Choi, Won Mook,Shin, Hyeon-Jin,Park, Hyun-Kyu,Seo, Ju-Seok,Park, Jongbong,Yoon, Seon-Mi,Chae, Seung Jin,Lee, Young Hee,Kim, Sang-Woo,Choi, Jae-Young,Lee, Sang Yoon,Kim, Jo WILEY-VCH Verlag 2010 ADVANCED MATERIALS Vol.22 No.19

<B>Graphic Abstract</B> <P>The cover shows an image of fully rollable transparent nanogenerators synthesized using chemical vapor deposition grown large-scale graphene sheets as transparent electrodes and piezoelectric ZnO nanorod arrays. Sang-Woo Kim, Jae-Young Choi, and co-workers report on p. 2187 the electrical and structural stability of the nanogenerators, with excellent charge scavenging performance under external mechanical loads such as bending and rolling. This study shows that graphene-based nanogenerators are very promising for self-powered rollable transparent device applications. <img src='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content.gif' alt='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content'> </P>

GIS 를 이용한 산불 진화용 저수탱크 적지 분석에 관한 연구

이기철(Gi Chul Yi),김승환(Seung Hwan Kim),남정칠(Jung Chil Nam),박승범(Sung Burm Park),강영조(Young Jo Kang),옥진아(Jin A Ok) 한국지리정보학회 1998 한국지리정보학회지 Vol.1 No.2

이 논문의 주요 목적은 지리정보체계의 지도모델링 기법을 이용하여 소규모 산림의 산불 진화용 저수 탱크의 적지 분석에 있다. 부산광역시 서구에 위치한 암남 도시자연공원을 대상으로 산불진화 모델에 필요한 산불 진화 시설, 지형 등의 수치 지도 데이터베이스를 만들었다. 암남공원에 현재 설치되어 있는 산불 진화 시설에 근거해 조기진화가 가능한 지역과 산림의 산불 진화 효과를 밝히기 위해 지리정보체계를 이용한 서술적 지도모델링 기법을 적용해 현재의 저수 탱크 시 The objective of this paper is to develop a cartographic model for water tank suitability for small forest fire extinction using GIS. Various digital maps were created using CAD & GIS for Amnam urban park. which is located in Seogu, Pusan city. The park h

Relationship between Growth Factors and Spectral Characteristics of Satellite Imagery in Korea

Park, Ji-Hoon,Ma, Jung-Lim,Nor, Dae-Kyun,Kim, Chan-Hoi,Hwang, Hyo-Tae,Jung, Jin-Hyun,Kim, Sung-Ho,Jo, Hyeon-Kook,Lee, Woo-Kyun,Chung, Dong-Jun Institute of Forest Science 2008 Journal of Forest Science Vol.24 No.3

This study attempts to analyze the relationship between forest volume and age based on 5th NFI data and spectral characteristics of satellite imagery using ASTER sensor in Korea. Forest stand volume and age had the negative correlation with the spectral reflectance in all of the band (Blue, Green, Red, SWIR). With increasing of stand volume and age, spectral reflectance decrease. The spectral reflectance of band1 showed the highest correlation between stand volume and spectral reflectance among the VNIR wavelength. The spectral reflectance band 1, 2 (visible wavelength) and stand age have high correlation compared to other bands. The correlation coefficients between forest volume and vegetation indices have low relationship. This result indicates that the reflectance of blue band may be important factor to improve the potential of optical remote sensing data to estimate forest volume and age.

Immunohistochemical Analysis for Excessive Splenomegaly in Transgenic Mice Expressing Dimeric Erythropoietin

Park, Chae-Won,Yun, Sung-Jo,Min, Kwan-Sik The Korean Society of Animal Reproduction 2010 Reproductive & developmental biology Vol.34 No.2

Erythropoietin (EPO), a glycoprotein hormone produced from primarily cells of the peritubular capillary endothelium of the kidney, is responsible for the regulation of red blood cell production. We have been investigating the roles of glycosylation site added in the biosynthesis and function of recombinant protein. In this study, we analyzed by immunohistochemical methods adaptive mechanisms to excessive erythrocytosis in transgenic (tg) mice expressing dimeric human erythropoietin (dHuEPO) gene. Splenomegaly was observed over 11~21 times in the tg mice. The 2,672 candidate spleen-derived genes were identified through the microarray analysis method, and decreased genes were higher than increased genes in the spleen. The specific proteins in the increased and decreased genes were analyzed by immunohistochemical methods. Our results demonstrate that problems of abnormal splenomegaly would solve in tg mice overexpressing dHuEPO gene.

Tribological Characteristics Manufactures SiC by Liquid Phase Sintered Method

Park, Won Jo,Huh, Sun Chul,Park, Sung Ho,Song, Hong Tae Trans Tech Publications, Ltd. 2006 Key Engineering Materials Vol.324 No.-

<P>SiC materials have excellent high temperature strength, low coefficient of thermal expansion, good resistance to oxidation and good thermal and chemical stability etc. In this study, monolithic liquid phase sintered SiC (LPS-SiC) was made by hot pressing method with nano-SiC powder an average particle size is 30nm and less. Alumina (Al2O3), yttria (Y2O3) and silica (SiO2) particles were used for sintering additives. To investigate effects of SiO2, Al2O3/Y2O3 composition was fixed and then ratios of SiO2 were changed as seven kinds. Materials have been sintered for 1 hour at 1760, 1780 and 1800 under the pressure of 20MPa. The system of sintering additives which affects a property of sintering as well as the influence depending on compositions of sintering additives were investigated by measurement of density, mechanical properties such as Vickers hardness and sliding wear resistance were investigated to make sure of the optimum condition which is about matrix of SiCf/SiC composites. The abrasion test condition applies to load of 20N at 100rpm for 20min. Sintered density, abrasion property of fabricated LPS-SiC increased with increasing the sintering temperature. In case of LPS-SiC with low SiO2 content, has very excellent wear resistance.</P>