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장애신,최철호 全南大學校家政科學硏究所 1994 生活科學硏究 Vol.4 No.-
The purpose of this study was to determine oily soil removal from cotton, polyester, cotton/polyester knitted fabrics at a range of wash temperatures and wash cycles with commercial home laundering detergents of similar formulations. Removal of oily soil was determined by measuring the whiteness of solied and washed fabrics. The whiteness has been measured on a color difference meter. Multiple regression analysis was used to estimate the relationships between the measures of oily soil removal. The results were as follows : Oily soil removal of the soiled cotton knitted fabric was influenced by washing temperature rather than by washing time and was occurred at the low temperature of 10˚C and 27˚C without great difficulties. Synthetic oily soil was more difficult to remove from polyester than from any other fabrics. The effect of washing at 49˚C was worse than that of washing at the lower temperatures in terms of energy efficiency of laundry.
LPS로 유도된 Human Dental Pulp Cells에서 Schisandrin C 의 항염증 효과
Jyoti Shrestha Takanche,Sang Won Lee,Yae Jin Kim,Young Hee Lee,Jeong Seok Kim,Ji Eun Kim,Ho Keun Yi,Sin Hee Han 한국약용작물학회 2016 한국약용작물학술대회 발표집 Vol.2016 No.10
Background : Tooth vitality is reflected by the health of dental pulp. Schisandrin C is a natural compound extracted from the fruit of Schisandra chinensis which has anti-inflammatory and anti-oxidant properties. The role of Schisandrin C on human dental pulp cells (HDPCs) has not been studied yet. This study examined the properties of Schisandrin C as an anti-inflammatory and anti-oxidant compound, and whether its characteristics promote mitochondrial biogenesis in HDPCs. Methods and Results : HDPCs were extracted from fresh third molars and cultured. Reactive oxidative stress (ROS) and nitric oxide (NO) formation were analyzed by a Muse cell analyzer. Western blotting and gelatin zymography were used to identify the presence of anti-oxidants, as well as inflammatory and mitochondrial biogenesis. Confocal microscopy was used for the detection of mitochondrial activity. Schisandrin C inhibited lipopolysaccharide (LPS)-stimulated inflammatory molecules; intracellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), matrix metalloproteinase-2 and -9 (MMP-2/9), NO production, ROS formation and the mitogen-activated protein (MAPK) pathway through minimizing the nuclear factor kappa B (NF-kB) translocation. Schisandrin C increased the expression of superoxide dismutase (SOD) enzymes as well as heme oxygenase-1 (HO-1) and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1a) through the phosphorylated-protein kinase B (p-AKT) and nuclear factor erythroid 2-related factor-2 (Nrf-2) pathways. The anti-inflammatory and anti-oxidant properties of Schisandrin C promoted mitochondrial biogenesis. Conclusions : These results suggest that Schisandrin C may be used as an anti-inflammatory compound to reduce oral inflammation such as pulpitis.
Park, Yae Won,Kim, Ha Yan,Lee, Ho-Joon,Kim, Se Hoon,Kim, Sun-Ho,Ahn, Sung Soo,Kim, Jinna,Lee, Seung-Koo Korean Society of Magnetic Resonance in Medicine 2018 Investigative Magnetic Resonance Imaging Vol.22 No.2
Purpose: The purpose of this study is to compare the performance of the T1 3D subtraction technique and the conventional 2D dynamic contrast enhancement (DCE) technique in diagnosing Cushing's disease. Materials and Methods: Twelve patients with clinically and biochemically proven Cushing's disease were included in the study. In addition, 23 patients with a Rathke's cleft cyst (RCC) diagnosed on an MRI with normal pituitary hormone levels were included as a control, to prevent non-blinded positive results. Postcontrast T1 3D fast spin echo (FSE) images were acquired after DCE images in 3T MRI and image subtraction of pre- and postcontrast T1 3D FSE images were performed. Inter-observer agreement, interpretation time, multiobserver receiver operating characteristic (ROC), and net benefit analyses were performed to compare 2D DCE and T1 3D subtraction techniques. Results: Inter-observer agreement for a visual scale of contrast enhancement was poor in DCE (${\kappa}=0.57$) and good in T1 3D subtraction images (${\kappa}=0.75$). The time taken for determining contrast-enhancement in pituitary lesions was significantly shorter in the T1 3D subtraction images compared to the DCE sequence (P < 0.05). ROC values demonstrated increased reader confidence range with T1 3D subtraction images (95% confidence interval [CI]: 0.94-1.00) compared with DCE (95% CI: 0.70-0.92) (P < 0.01). The net benefit effect of T1 3D subtraction images over DCE was 0.34 (95% CI: 0.12-0.56). For Cushing's disease, both reviewers misclassified one case as a nonenhancing lesion on the DCE images, while no cases were misclassified on T1 3D subtraction images. Conclusion: The T1 3D subtraction technique shows superior performance for determining the presence of enhancement on pituitary lesions compared with conventional DCE techniques, which may aid in diagnosing Cushing's disease.
경로 연혁정보를 이용한 무선 ATM 서비스의 핸드오버 방법
예병호(Byung-Ho Yae),김해숙(Hae-Sook Kim),김우영(Woo-Young Kim),이성창(Sung-Chang Lee) 한국정보과학회 2000 정보과학회논문지 : 정보통신 Vol.27 No.3
본 논문은 무선 ATM 서비스의 핸드오버 처리를 위한 경로 재구성 방법에 대한 것으로써 경로 재구성을 위한 교차 스위치의 신속한 검색을 위하여 경로 연혁정보를 활용하는 방법을 제안하였다. 본 방법에서는 단말로부터 핸드오버가 요구되는 시점에서 현재의 연결에 대한 경로정보를 전달 받아 경로 연혁정보에서 일치되는 교차 스위치를 찾아 직접 경로 재구성을 위한 신호정보를 전달함으로써 경로 재구성 처리시간을 단축시킬 수 있다. 그리고 핸드오버 과정에서의 셀 순서 유지와 유실을 방지하기 위하여 기지국에서 관리하는 버퍼 사용방법을 사용하였다. A history-based path rerouting scheme is proposed to support fast crossover switch discovery and reduce handover processing time for the wireless ATM services. In this scheme, we can reduce crossover switch searching time by using already established connection path information kept in base station for the call duration. The old path information is compared to the current connection path information to find matched crossover switch. Also we use efficient buffering in base station to conserve cell sequence and avoid cell losses.