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Na, Jee Hyeon,Chung, Yun Won,Shin, Jaewook,Lee, Sangho,Kim, Sang-ha IEEE 2007 Vehicular Technology Conference, 2007. VTC2007-Spr Vol.2007 No.4
<P>Recently, Internet connectivity in mobile ad hoc network (MANET) has been studied extensively in order to support ubiquitous Internet services to MANET users and provide interworking with other networks such as wireless local area network (WLAN) and cellular networks to extend the coverage of these networks. Although there have been a lot of works on connecting MANET with Internet, few works have been performed on the detailed performance analysis of the effect of routing path discovery for Internet connection from MANET with reactive routing protocol such as ad hoc on demand distance vector (AODV) protocol from the aspect of routing discovery delay and control overhead. In this paper, we propose a hierarchical mobile AODV6 network architecture, which combines the concept of hierarchical Mobile IPv6 and AODV ad hoc routing protocol. In the proposed architecture, Internet gateway performs the role of mobility anchor point (MAP) of hierarchical mobile IP (HMIP), and a novel routing path discovery and data delivery scheme is proposed by managing address information of connected nodes in Internet gateway. Then, the performance of the proposed scheme is analyzed in terms of routing path discovery overhead and control packet overhead for Internet connection from AODV6 node. The result shows that the proposed scheme has lower control packet overhead and routing path discovery delay compared with conventional AODV6 scheme</P>
나지현(Jee-Hyeon Na),김성희(Sung-Hee Kim),김대식(Dae-Sik Kim) 한국정보과학회 1993 한국정보과학회 학술발표논문집 Vol.20 No.2
본 논문은 Loosely-coupled 분산 시스템에서 각 어플리케이션 프로세서에 산재되어있는 데이타를 처리하는 사용자 인터페이스에 관하여 기술한다. 이 방식에서는 단일 사용자 창구로 MMP(Man Machine Interface Processor)를 고용하여 Form에 의한 입출력 방식을 제공하고, 연관된 분산 정보의 갱신시 MMP에서 어플리케이션 프로세서들간 트랜잭션 처리를 주도하여 데이타간의 일치성을 유지하며, MMI 어플리케이션과 PC의 윈도우간 표준화된 인터페이스를 제공하여 실제로 이동통신 교환기 시스템의 가입자 정보 관리에 응용될 수 있음을 보인다.
( Hyeon Woo Jeon ),( Eui Young Na ),( Sook Jung Yun ),( Seung-chul Lee ),( Jee-bum Lee ) 대한피부과학회 2018 Annals of Dermatology Vol.30 No.6
Background: Citron is well known for an abundance of antioxidative and anti-inflammatory ingredients such as vitamin C, polyphenol compounds, flavonoids, and limonoids. Objective: In this study, we aimed to evaluate the effects of citron essential oils on rosacea mediators in activated keratinocytes in vitro. Methods: Normal human epidermal keratinocytes (NHEKs) were stimulated with 1α, 25-dihydroxyvitamin D<sub>3</sub> (VD<sub>3</sub>) and interleukin 33 (IL-33) with LL-37 to induce rosacea mediators such as kallikrein 5 (KLK5), cathelicidin, vascular endothelial growth factor (VEGF), and transient receptor potential vanilloid 1 (TRPV1). These mediators were analyzed by performing reverse-transcription polymerase chain reaction (PCR), quantitative real-time PCR, immunocytofluorescence and enzyme-linked immunosorbent assay after NHEKs were treated with citron seed and unripe citron essential oils. Results: The messenger RNA (mRNA) and protein levels of KLK5 and LL-37 induced by VD<sub>3</sub> were suppressed by citron seed and unripe citron essential oils. Furthermore, the mRNA and protein levels of VEGF and TRPV1 induced by IL-33 with LL-37 were also suppressed by citron essential oils. Conclusion: These results show that citron essential oils have suppressive effects on rosacea mediators in activated epidermal keratinocytes, which indicates that the citron essential oils may be valuable adjuvant ther-apeutic agents for rosacea. (Ann Dermatol 30(6) 653∼661, 2018)
Secondhand smoke exposure and mental health problems in Korean adults
Na Hyun Kim,Hansol Choi,Na Rae Kim,Jee-Seon Shim,Hyeon Chang Kim 한국역학회 2016 Epidemiology and Health Vol.38 No.-
OBJECTIVES: To evaluate the association between secondhand smoke exposure (SHSE) and mental health problems among Korean adults. METHODS: We analyzed data from the 2011 Korean Community Health Survey. From the total of 229,226 participants aged 19 years or above, we excluded 48,679 current smokers, 36,612 former smokers, 3,036 participants with a history of stroke, 2,264 participants with a history of myocardial infarction, 14,115 participants who experienced at least one day in bed per month due to disability, and 855 participants for whom information regarding SHSE or mental health problems was not available. The final analysis was performed with 22,818 men and 100,847 women. Participants were classified into four groups according to the duration of SHSE: none, <1 hr/d, 1-<3 hr/d, and ≥3 hr/d. The presence of depressive symptoms, diagnosed depression, and high stress were measured by questionnaire. RESULTS: After adjusting for demographic factors, lifestyle, and chronic disease, the odds ratio (OR) and 95% confidence interval (CI) of depressive symptoms with 1-<3 hr/d and ≥3 hr/d SHSE were 1.44 (95% CI, 1.14 to 1.82) and 1.59 (95% CI, 1.46 to 1.74), respectively. However, SHSE ≥3 hr/d had a higher OR of 1.37 (95% CI, 1.20 to 1.58) for diagnosed depression. SHSE was also associated with high stress (1-<3 hr/d: OR, 1.56; 95% CI, 1.38 to 1.76; ≥3 hr/d: OR, 1.33 95% CI, 1.28 to 1.40). However, the association between SHSE and symptoms of depression and stress did not differ significantly by region. CONCLUSIONS: SHSE may be associated with mental health problems such as depression and stress in Korean adults.