oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 2 )

2019 ( 13 )

2018 ( 33 )

2017 ( 27 )

Custom range...

Search Results: 1 - 10 of 8090 matches for " Jeong-Hoon Shin "
All listed articles are free for downloading (OA Articles)
Page 1 /8090
Display every page Item
Identification of Acceptable Restoration Strategies
Seung-Tae Cha,Nam-Ho Lee,Eung-Bo Shim,Jeong-Hoon Shin
Journal of Systemics, Cybernetics and Informatics , 2008,
Abstract: In recent years, we have seen several catastrophic and cascading failures of power systems throughout the world. Power system breakup and blackouts are rare events. However, when they occur, the effects on utilities and general population can be quite severe. To prevent or reduce cascading sequences of events caused by the various reasons, KEPRI is researching ways to revolutionize innovative strategies that will significantly reduce the vulnerability of the power system and will ensure successful restoration of service to customers. This paper describes a restoration guidelines / recommendations for the KEPS simulator, which allows power system operator and planner to simulate and plan restoration events in an interactive mode. The KEPS simulator provides a list of restoration events according to the priority based on some restoration rules and list of priority loads. Further, the paper will draw on research using information from a Jeju case study.
A Study on a Solar Simulator for Dye Sensitized Solar Cells
Kyoung-Jun Lee,Jeong-Hoon Kim,Ho-Sung Kim,Dongsul Shin,Dong-Wook Yoo,Hee-Je Kim
International Journal of Photoenergy , 2012, DOI: 10.1155/2012/834347
Abstract: Dye-sensitized solar cells (DSSC) are emerging low-cost, simple alternatives to conventional solar cells. While there has been considerable study on improving the efficiency of DSSCs, there has not been sufficient research on a photovoltaic power conditioning system adaptable to DSSCs or on a solar simulator for DSSCs. When DSSCs are commercialized in the near future, the DSSC modules must be connected to an adaptable power conditioning system in order to manage the energy produced and provide a suitable interface to the load. In the process of developing a power conditioning system, a solar simulator with the characteristics of DSSCs is essential to show the performance of the maximum power point tracking. In this paper, a virtual DSSC is designed and simulated in PSIM. Irradiation factors, temperature and shadow effects are considered in dynamic link library block in PSIM which is linked to the external C routine. A 100 W converter is built to show the performance of a DSSC as the solar simulator controlled by a digital signal processor.
PDHK-2 Deficiency Is Associated with Attenuation of Lipase-Mediated Fat Consumption for the Increased Survival of Caenorhabditis elegans Dauers
Sunhee Kim, E-Jin Shin, Jeong-Hoon Hahm, Pil-Jong Park, Ji-Eun Hwang, Young-Ki Paik
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0041755
Abstract: In Caenorhabditis elegans, slow fat consumption has been suggested to contribute to the extension of the survival rate during nutritionally adverse conditions. Here, we investigated the potential role of pyruvate dehydrogenase kinase (PDHK)-2, the C. elegans homolog of mammalian PDK, effects on fat metabolism under nutritional conditions. PDHK-2 was expressed at low levels under well-fed conditions but was highly induced during long-term starvation and in the dauer state. This increase in pdhk-2 expression was regulated by both DAF-16 and NHR-49. Dauer-specific induction of PDHK-2 was abolished upon entry into the post-dauer stage. Interestingly, in the long-term dauer state, stored fat levels were higher in daf-2(e1370);pdhk-2 double mutants than in daf-2(e1370), suggesting a positive relationship between PDHK-2 activity and fat consumption. PDHK-2 deficiency has been shown to lead to greater preservation of residual fats, which would be predicted to contribute to survival during the dauer state. A test of this prediction showed that the survival rates of daf-2(e1370);pdhk-2(tm3075) and daf-2(e1370);pdhk-2(tm3086) double mutants were higher than that of daf-2(e1370), suggesting that loss of either the ATP-binding domain (tm3075) or branched chain keto-acid dehydrogenase kinase domain (tm3086) of PDHK-2 leads to reduced fat consumption and thus favors increased dauer survival. This attenuated fat consumption in the long-term dauer state of C. elegans daf-2 (e1370);pdhk-2 mutants was associated with concomitant down-regulation of the lipases ATGL (adipose triglyceride lipase), HSL (hormone-sensitive lipase), and C07E3.9 (phospholipase). In contrast, PDHK-2 overexpression in wild-type starved worms induced lipase expression and promoted abnormal dauer formation. Thus, we propose that PDHK-2 serves as a molecular bridge, connecting fat metabolism and survival under nutritionally adverse conditions in C. elegans.
Cultivation characteristics and flavonoid contents of wormwood (Artemisia montana Pamp.)  [PDF]
Yong Joo Kim, Jeong-Hoon Lee, Sun-Ju Kim
Journal of Agricultural Chemistry and Environment (JACEN) , 2013, DOI: 10.4236/jacen.2013.24017
Abstract: The aim of this study was to establish the optimum harvesting time and the content of flavonoids in the leaves, stems, and roots of Artemisia montana Pamp. A. montana was monitored from June to October in 2012. The yield of A. montana at high density (30 × 10 cm) was higher than that of A. montana at low density (30 × 20 and 30 cm). Yield in terms of dry weight was increased with an extended growth period and development stage. High yield achieved at 2580 and 2757 kg?10 a?1 in September and October, respectively. Among the leaves, stems, and underground plant organs, jaceosidin and eupatilin were mainly detected in the leaves, and the highest levels were observed in June, at values of 66.6 and 158.2 mg?100 g?1, respectively. In contrast, apigenin was the major compound detected in the underground plant organs, with levels ranging from 21.2 to 29.5 mg?100 g?1 until September. Therefore, optimal harvest times were between September and October, generating a high yield and adding economic value although a higher level of total flavonoids was observed in crops harvested in June.
Pharmacologic treatment of depression in patients with myocardial infarction

Ha Jeong-Hoon,Wong Cheuk-Kit,

老年心脏病学杂志(英文版) , 2011,
Abstract: Depression is a common medical problem and is more prevalent among patients with coronary artery disease. Whether early detection and treatment of depression will enhance cardiovascular outcome is uncertain. Obviously, the safety and efficacy of the anti-depression drugs is an important link. This article reviews the patho-physiologic and behavioural links between depression and cardiovascular disease progression, the treatment of depression, and the potential benefits of anti-depressants in patients with coronary disease.
Pharmacologic treatment of depression in patients with myocardial infarction
Jeong-Hoon Ha,Cheuk-Kit Wong
老年心脏病学杂志(英文版) , 2011,
Abstract: Depression is a common medical problem and is more prevalent among patients with coronary artery disease. Whether early detection and treatment of depression will enhance cardiovascular outcome is uncertain. Obviously, the safety and efficacy of the anti-depression drugs is an important link. This article reviews the patho-physiologic and behavioural links between depression and cardiovascular disease progression, the treatment of depression, and the potential benefits of anti-depressants in patients with coronary disease.
An Auto-Configuration of 4M Group Management Using Wireless Sensor Networks  [PDF]
Suk-Keun Cha, Jeong-Hoon Lee, Han Gyu Kim, Joon Jae Yoo, Jung Hoon Kang, Dong Hoon Kim, Jun Yeob Song
Wireless Sensor Network (WSN) , 2010, DOI: 10.4236/wsn.2010.24052
Abstract: The first tier of automotive manufacturers has faced to pressures about move, modify, updating tasks for manufacturing resources in production processes from demand response of production order sequence for motor company and process innovation purpose for productivity. For meets this requirements, it has to require absolutely lead time to re-wiring of physical interface for production equipment, needs for change existing program and test over again. For prepare this constraints, it needs studying an auto-configuration functions that build for both visibility and flexibility based on the 4M (Man, Machine, Material, Method) group management which is supports from WSN (Wireless Sensor Network) of the open embedded device called M2M (Machine to Machine) and major functions of middleware including point manager for real-time device communication, real-time data management, Standard API (Application Program Interface) and application template management. To be application system to RMS (Reconfigurable Manufacturing System) for rapidly response from various orders and model from motor company that is beginning to establishing the mapping of manufacturing resources of 4M using WSN.
Association of Polymorphism in Pri-microRNAs-371-372-373 with the Occurrence of Hepatocellular Carcinoma in Hepatitis B Virus Infected Patients
Min-Sun Kwak, Dong Hyeon Lee, Yuri Cho, Eun-Ju Cho, Jeong-Hoon Lee, Su Jong Yu, Jung-Hwan Yoon, Hyo-Suk Lee, Chung Yong Kim, Jae Youn Cheong, Sung Won Cho, Hyoung Doo Shin, Yoon Jun Kim
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0041983
Abstract: Background Micro RNAs-371-372-373 (miRNAs-371-373), originating from the same pri-miRNA transcript, are reported to be upregulated in hepatocellular carcinoma (HCC) and to be related to the regulation of hepatitis B virus (HBV) infection. Our study investigated whether pri-miRNAs-371-373 polymorphisms are associated with the risk of HCC occurrence and HBV clearance. Methods Genetic variations were identified through direct DNA sequencing using TaqMan assay. Three sequence variants of pri-miRNAs-371-373 were identified. Genetic associations of those with HCC occurrence and HBV clearance among patients with HBV infection were analyzed using logistic regression analyses with adjustment for age and gender (n = 1439). Results For the occurrence of HCC, polymorphism rs3859501C>A acted as a protective factor both in chronic carriers (OR = 0.75, P = 0.005 in a codominant model; OR = 0.71, P = 0.02 in a dominant model; OR = 0.66, P = 0.03 in recessive model) and liver cirrhosis patients (OR = 0.69, P = 0.001 in a codominant model; OR = 0.60, P = 0.003 in a dominant model; OR = 0.63, P = 0.03 in a recessive model). The pri-miRNAs-371-373_ht2 [C-A-C] also showed a protective effect on HCC occurrence both in the chronic carrier and liver cirrhosis groups (P<0.05 in both). However, there was no significant association between pri-miRNAs-371-373 polymorphisms and HBV clearance. Conclusions In conclusion, among chronic carriers and liver cirrhosis patients, the A allele of rs3859501 and the haplotype pri-miRNAs-371-373_ht2 were more protective to HCC than other genotypes and haplotypes. Further studies into the roles of rs3859501 and pri-miRNAs-371-373_ht2 haplotype in hepatocarcinogenesis are needed.
Six Pandalid Shrimps of the Genus Plesionika (Crustacea: Decapoda: Caridea) in Korea
Jung Nyun Kim,Jung Hwa Choi,Jeong-Hoon Lee,Joo Il Kim
Animal Systematics, Evolution and Diversity , 2012, DOI: http://dx.doi.org/10.5635/ased.2012.28.2.105
Abstract: Based on samples collected from the Korean Exclusive Economic Zone (EEZ) during an investigation of fishery resources by the National Fisheries Research and Development Institute (NFRDI) from 2002 to 2010, alongside some supplemental material, six species of the genus Plesionika are identified: P. izumiae Omori, 1971, P. ortmanni Doflein, 1902, P. grandis Doflein, 1902, P. lophotes Chace, 1985, P. narval (Fabricius, 1787), and P. orientalis Chace, 1985. Of these, the last four species are new to Korean marine fauna. The distributional range of P. narval extends to the East China Sea off Jeju Island. Excluding P. izumiae and P. ortmanni, the other four species are relatively rare in the seas around Korea. They are described and illustrated with color photographs. A key to the Korean species of Plesionika is also presented.
Descriptions of Five Species of Scyllarine Lobsters (Crustacea, Decapoda, Scyllaridae) in Korea
Jung Nyun Kim,Jung Hwa Choi,Jeong-Hoon Lee,Joo Il Kim
Animal Systematics, Evolution and Diversity , 2013, DOI: http://dx.doi.org/10.5635/ased.2013.29.2.115
Abstract: Five scyllarine lobster species, belonging to the family Scyllaridae, are described from Korean waters: Chelarctus cultrifer (Ortmann, 1897), Crenarctus bicuspidatus (De Man, 1905), Galearctus kitanoviriosus (Harada, 1962), G. timidus (Holthuis, 1960), and Petrarctus brevicornis (Holthuis, 1946). Of these, three species, C. bicuspidatus, G. timidus, and P. brevicornis are new to Korean marine carcinological fauna. This report extends the known range of G. timidus to the southern coast of Korea from Taiwan in the East China Sea. Excluding C. bicuspidatus and G. kitanoviriosus, the other three species are relatively rare in Korean waters. They are described herein with color photographs, and a key to the Korean genera and species of Scyllarinae is also presented.
Page 1 /8090
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.