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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>
Anticancer effects of astaxanthin and α-tocopherol in esophageal cancer cell Lines
Sang Ah Lim,Jong Jae Park,Moon Kyung Joo,Jong Yeol Kim,Young Kul Jung,Eun Suk Jung,Beom Jae Lee,Jin Ki Hwang,Seung Guon Hong,Ji Hoon Kim,Jong Eun Yeon,Jae Seon Kim,Kwan Soo Byun 대한내과학회 2009 대한내과학회 추계학술대회 Vol.2009 No.-
Compact wideband tag antenna for UHF RFID
Lim, Sang Ho,Oh, Young Cheol,Lim, Ho,Myung, Noh Hoon Wiley Subscription Services, Inc., A Wiley Company 2009 MICROWAVE AND OPTICAL TECHNOLOGY LETTERS Vol.51 No.5
<P>A UHF radio frequency identification tag antenna using an inductively coupled feeding method and meander lines is proposed. The antenna has a compact size (diameter: 0.08λ, 26.4 mm), wide bandwidth, and simple matching technique between a tag antenna and a tag chip. To get a physical operation of the proposed antenna, a simplified structure is presented and analyzed. An equivalent circuit model with a simplified structure has good results compared with a simulation. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1291–1294, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24295</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>
Combinations of Growth Factors Enhance the Potency of Islets In Vitro
Lim, Jong Yeon,Min, Byoung Hoon,Kim, Byoung Geun,Shin, Jun-Seop,Park, Chang Sook,Yoon, Tai Wook,Han, Sung Sik Lippincott Williams Wilkins, Inc. 2009 Pancreas Vol.38 No.4
OBJECTIVES:: Recent studies have demonstrated the impressive expansion of &bgr; cells in vitro. But unfortunately, expanded &bgr; cells do not function in the same way as fully differentiated &bgr; cells. Therefore, we developed a condition that would allow islet cells to proliferate while maintaining their endocrine function. METHODS:: We tested the different use of growth factors in a different culture period. And we tested the possibility of adult islets, which expanded during a short period, as a clinical source of islet cells by comparing the efficiency of transplantation of cultured islets with that of fresh islets. RESULTS:: The islets showed a time-dependent increase in proliferative activity, reaching 32.2% on day 5. After 5 days of culture, the efficiency of transplantation of cultured islets was increased (2-fold) in comparison to that of noncultured islets. Moreover, islet transplantation immediately induced normoglycemia at a level equal to native islets. CONCLUSIONS:: These findings suggest that adult &bgr; cells have the potential to proliferate while maintaining their endocrine function, which can be improved through careful regulation of proliferation and differentiation.
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.-