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컨테이너 검색기 이송대차 추진용 선형 유도전동기의 2차측 리액션플레이트 재질에 따른 특성 연구
정재훈(Jae-Hoon Jeong),최장영(Jang-Young Choi),성소영(So-Young Sung),박종원(Jong-Won Park),임재원(Jaewon Lim) 대한전기학회 2016 전기학회논문지 Vol.65 No.1
This paper presents the analysis of the analysis of thrust characteristics of linear induction motors(LIMs) according to secondary reaction plate. LIMs are well known as high speed transport systems, which can obtain thrust directly without gears and links, or auxiliary mechanisms. A simple structure, easy maintenance, and less environmental pollution are advantages of LIMs. In transport systems using LIMs, the secondary reaction plate is an important design factor, because it has considerable impact on the cost of the railway as well as the performance of the LIMs. This paper deals analyzed the characteristics of linear induction motor used for moving the vehicle of container scanner. Thrust, efficiency and load characteristic were interpreted with FEM regarding two models whose material of secondary reaction plate was copper and aluminum. It suggested the interpretation of thrust, efficiency and power factor characteristic along slip and compared the operation ability of linear induction motor through characteristics analysis along the load.
Park, Jinbong,Jeon, Yong-Deok,Kim, Hye-Lin,Lim, Hara,Jung, Yunu,Youn, Dong-Hyun,Jeong, Mi-Young,Kim, Hyun-Ju,Kim, Sung-Hoon,Kim, Su-Jin,Hong, Seung-Heon,Um, Jae-Young Hindawi Publishing Corporation 2013 Evidence-based Complementary and Alternative Medic Vol.2013 No.-
<P>Obesity has become a major health threat in developed countries. However, current medications for obesity are limited because of their adverse effects. Interest in natural products for the treatment of obesity is thus rapidly growing. Korean Medicine (KM) is characterized by the wide use of herbal formulas. However, the combination rule of herbal formulas in KM lacks experimental evidence. According to <I>Shennong's Classic of Materia Medica</I>, the earliest book of herbal medicine, <I>Veratrum nigrum</I> (VN) has antagonistic features against <I>Panax ginseng</I> (PG), and the PG-VN pair is strictly forbidden. In this study, we have shown the effects of PG, VN, and their combination on obesity in high-fat (HF) diet-induced obese mice and in 3T3-L1 cells. PG, VN, and PG-VN combination significantly reduced weight gain and the fat pad weight in HF diet-induced obese mice. They also significantly decreased lipid accumulation and the expressions of two major adipogenesis factors, PPAR<I><I>γ</I></I> and C/EBP<I><I>α</I></I>, in 3T3-L1 cells. In addition, the PG-VN combination had synergistic effects compared with the mixture of extracts of PG and VN on inhibition of PPAR<I><I>γ</I></I> and C/EBP<I><I>α</I></I> expressions at lower doses. These results indicate a new potential anti-obese pharmacotherapy and also provide scientific evidence supporting the usage of herbal combinations instead of mixtures in KM.</P>
Lim, Yong-Sik,Ahn, Jae-Geum,Kim, Ji-Hee,Yee, Ki-Ju,Joo, Taiha,Baik, Sung-Hoon,Há,roz, Erik H.,Booshehri, Layla G.,Kono, Junichiro American Chemical Society 2010 ACS NANO Vol.4 No.6
<P>We have observed large-amplitude coherent phonon oscillations of radial breathing modes (RBMs) in single-walled carbon nanotubes excited through the lowest-energy (<I>E</I><SUB>11</SUB>) interband transitions. In contrast to the previously studied coherent phonons excited through higher-energy (<I>E</I><SUB>22</SUB>) transitions, these RBMs show comparable intensities between (<I>n</I>−<I>m</I>) mod 3 = +1 and −1 nanotubes. We also find the novel observation of RBMs excited over an excitation range of ∼300 meV above the <I>E</I><SUB>11</SUB> transition, which we attribute to possible resonance with phonon sidebands of the lowest optical transition, arising from strong exciton−phonon coupling.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/ancac3/2010/ancac3.2010.4.issue-6/nn100055e/production/images/medium/nn-2010-00055e_0004.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nn100055e'>ACS Electronic Supporting Info</A></P>
A retrospective analysis of second-line chemotherapy in patients with advanced gastric cancer (초)
( Sang Hoon Ji ),( Do Hyoung Lim ),( Min Jae Park ),( Seong Yoon Yi ),( Kyoung Ha Kim ),( Hyo Song Kim ),( Hyun Jung Jun ),( Ji Eun Uhm ),( Jee Yun Lee ),( Se Hoon Park ),( Joon Oh Park ),( Young Suk 대한내과학회 2008 대한내과학회 추계학술대회 Vol.2008 No.-
Effect of First Birth Interval Length on Preterm of Singleton Birth in Korea; 2010- 2013
( Sang Hwa Park ),( Sung Woo Kim ),( Hoon Kim ),( Dar Oh Lim ) 대한주산의학회 2016 大韓周産醫學會雜誌 Vol.27 No.4
Purpose: To compare the preterm birth (PTB) by length of first birth interval (LFBI) in singleton birth among primiparous women. Methods: Data from the 2010-2013 birth certification of Korea Statistics (718,103 singleton first births) was used. Extra-marital birth, teenage birth, non-hospital birth cases, pre-marital pregnancy (shotgun birth) cases, and missing information (year and month of marriage, gestational age) were excluded from the data. Odds ratio and 95% confidence intervals were calculated from multinomial logistic regression analyses to describe the associations between the LFBI and the risk of PTB. Results: The mean LFBI from marriage to first birth was 24.4 months. The frequency of LFBI was 29.7 percent in LFBI of 8-12 months, 38.1 percent in 13-24 months, 22.7 percent in 25-48 months, 3.8 percent in 49-60 months, and 5.7 percent in ≥61 months. The rate of PTB was increased with prolonged LFBI. The incidence of PTB by LFBI was 3.9 percent in the LFBI of 8-24 months, 4.3 percent in 25-48 months, and 5.8 percent in ≥49 months. The odds ratio of PTB for the LFBI of ≥49 months was 1.327 (95% confidence interval: 1.299-1.427), compared with the LFBI of 8-24 months. The odds ratio of PTB was 1.695 (1.598-1.798) in women aged 35 and older with the LFBI of ≥49 months, as compared to women aged under 34 years with the LFBI of ≥8-24 months. Conclusion: A prolonged LFBI was associated with the increased preterm birth risk.
( Sang-gyun Kim ),( Soo-hyun Kim ),( Jung-heum Baek ),( Jae-gyoon Kim ),( Ki-mo Jang ),( Hong-chul Lim ),( Ji-hoon Bae ) 대한슬관절학회 2019 대한슬관절학회지 Vol.31 No.1
Background: The Multicenter Orthopaedic Outcomes Network (MOON) group recently reported that medial meniscus (MM) repairs are associated with more frequent re-operations when compared to lateral meniscus (LM) repairs. The purpose of this study was to compare the meniscal healing and the incidence of subsequent reoperation of medial and lateral meniscal tears that occurred concurrently with anterior cruciate ligament (ACL) injuries. Methods: We retrospectively reviewed patients who underwent second-look arthroscopy after primary ACL reconstruction (ACLR) between June 2005 to December 2016. The healing of meniscal tears following repair or left in situ, and re-tear following partial meniscectomy, were evaluated via second-look arthroscopy and compared between medial and lateral meniscus. Moreover, the incidence of subsequent meniscal re-operation after the index ACLR were investigated and compared between medial and lateral meniscus. Subsequent meniscal re-operation was performed in cases of the following three symptomatic meniscus tears: re-tears at the meniscectomy site; new tears; and failed healing of repaired or left in situ meniscus. Results: There were 148 meniscal tears in 121 patients at index ACLR. There were 62 MM tears, 38 LM tears, and 24 bilateral meniscus tears. At second-look arthroscopy, the “successful healing” rate for tears following repair was higher in LM tears (91.2%) compared to MM tears (80.0%), although it was not statistically significant (p > 0.05). No significant differences were observed in the healing of left in situ tears or re-tear of meniscectomy site between medial and lateral meniscus. Patients with MM tears combined with ACL injuries had a higher incidence of subsequent meniscal re-operation compared to patients with LM tears (25.6% vs 16.1%, p = 0.025). Conclusions: There was a trend for the successful healing rate to be higher in LM repairs than MM repairs. Subsequent meniscal re-operations after ACLR were more frequent in patients with medial meniscal tears concurrently with ACL injuries in comparison to patients with lateral meniscal tears. Level of study: Level IV, retrospective case series.
( Sang Keun Lee ),( Eun Kyoung Jeon ),( Yu Jin Kim ),( Sam Hwa Seo ),( Chang Deok Kim ),( Jong Soon Lim ),( Jeung Hoon Lee ) 대한피부과학회 2009 Annals of Dermatology Vol.21 No.3
Background: Psoriasis is a chronic inflammatory skin disease that affects approximately 1~3% of the general population. Objective: We performed cDNA microarray analysis with using the dendrimer labelling method to investigate the gene expression profile in the peripheral blood mononuclear cells (PBMCs) of psoriatic patients. Methods: The peripheral blood mononuclear cells of 5 patients with psoriasis and 8 control subjects were used in the gene expression analyses of psoriasis. Results: We identified 212 differentially expressed genes that showed at least a two-fold induction and/or reduction in psoriatic patients. Among those, 63 genes, including CD44, CD56 and IL7R, were induced, while 139 genes, including the sphingosine kinase 1 and p16-INK genes, were reduced in the psoriatic patients. Conclusion: We can speculate that these genes may have a role for the pathogenesis of psoriasis via their affecting different cellular functions. Our results suggest a possible mechanism by which activated immune cells migrate from the blood to the skin in psoriatic patients, and we provide novel putative targets for developing drugs to treat psoriasis. (Ann Dermatol 21(3) 237~242, 2009)