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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.
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.
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>
[PE-0067] Identification of QTLs related Japonica rice pre-harvest sprouting by QTL-seq
Woong Jo Hyun(Woong Jo Hyun),Eok Keun Ahn(Eok Keun Ahn),Yoon Sung Lee(Yoon Sung Lee),Yong Jae Won(Yong Jae Won),Kuk Hyun Jung(Kuk Hyun Jung),Hyang Mi Park(Hyang Mi Park),Jeom Ho Lee(Jeom Ho Lee),Kyung 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
( Sang Muk Hwang ),( Ji Hyun Yang ),( Sang Kyung Jo ),( Myung Seok Lee ),( Sang Hoon Park ) 대한간학회 2018 춘·추계 학술대회 (KASL) Vol.2018 No.1
Aims: Acute kidney injury (AKI) is the most frequent and devastating complication in cirrhotic patients. Emerging evidences suggest that novel biomarkers could predict AKI earlier than conventional markers and better predict prognosis in these patients. To determine the incidence and prognosis of AKI in acutely decompensated cirrhotic patients and also test whether plasma cystatinc C, urine neutrophil gelatinase associated lipocalin (NGAL) or tissue inhibitor of metalloproteinase-2 (TIMP-2), insulin like growth factor 7 (IGFBP7) could predict the development of AKI and prognosis. Methods: This is a single center prospective observational study conducted between May 2015 and Dec. 2017 with acutely decompensated cirrhotic patients. AKI was defined by KDIGO (Kidney Disease Improving Global Outcomes) criteria and urine and plasma samples were collected at the time of admission. Performances of novel biomarkers as well as various functional, clinical parameters were compared. Results: Of 111 patients, 45 (40.5%) developed AKI during hospitalization and these patients showed significantly higher mortality (25% vs. 46.5%, P=0.02). Although initial BUN and serum creatinine were not different, plasma cystatin C and urine NGAL at the time of admission were significantly increased in patients who developed AKI and also death. Plasma cystatin C and urine NGAL were independently associated with the development of AKI after adjusting for clinical variables including age, co-morbidity and Child-Pugh score. [plasma cystatin C, odds ratio (OR) 2.09; 95% confidence interval (CI), 1.01- 4.35), urine NGAL, OR 1.04, CI 1.01-1.05]. Although these biomarkers failed to predict mortality independent of clinical variables, urine NGAL significantly improved the accuracy of MELD in predicting mortality. Conclusions: Novel biomarkers including plasma cystatin C or urine NGAL might be useful in earlier diagnosis of AKI and also in predicting mortality in acutely decompensated cirrhotic patients.
Sung-Su Kim,Yee Eun Lee,ho Hyun Kim,Joong-Seok Min,Dong Gyun Yim,Cheorun Jo 한국축산식품학회 2022 한국축산식품학회지 Vol.42 No.1
The objective of this study was to determine the optimal cooking time by considering the cooking loss, shear force, and off-odor reduction of pork large intestines. Commercial pork large intestines were purchased, quartered perpendicularly, and cooked in boiling water for 40, 120, 180, and 240 min. Cooking loss of the samples increased after 240 min of cooking (10.92, p<0.05) while shear force value was lower at 240 min (4.45) compared to that at other cooking times (p<0.001). The amount of major volatile organic compounds showed a decreasing trend with increasing cooking time. In particular, the amount of methyl pentanoate (17,528.71) and methyl isobutyrate (812.51), compounds with a relatively low odor threshold, decreased significantly after 120 min of cooking and no change was observed thereafter (p<0.05). In addition, the amount of 2-pentanol (3,785.65) and 1-propanol (622.26), possibly produced by lipid oxidation, significantly decreased at the same cooking time (p<0.001). In the principal component analysis, only the 40 min cooking time was significantly different from other cooking time by high amounts of 1-propanol, 2-pentanol, and methyl isobutyrate. In conclusion, in the present study, the optimal cooking time for pork large intestines was 120 min in terms of off-odor reduction, cooking loss, and shear force.
Performance Evaluation of Passive and Semi-Active Magnetorheological Dampers
Sang-Hyun Lee,Ji-Hun Park,Sung-Kyung Lee,Kyung-Jo Youn,Kyung-Won Min 대한기계학회 2007 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.21 No.6
Seismic control performance of the magnetorheological (MR) damper, which has strong nonlinearity, varies with the dynamic characteristics of the structure and ground motion such as natural period, peak ground acceleration. The MR damper has a property of the friction damper so that the relative magnitude of the friction force over excitation intensity affects the control performance. In this study, through numerical analyses of single-degree-of-freedom (SDOF) structures, design spectra for the passive MR damper and optimal non-dimensional friction forces are suggested. Additionally, simple semi-active control algorithms modulating the friction force of the MR damper in accordance with structural responses are proposed and compared with each other and the passive MR damper. Finally, the condition that the semi-active control is more appropriate than the passive one is identified for reasonable selection of the control strategy.