• Title/Summary/Keyword: ob/ob

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FUV Observations of The Taurus-Auriga-Perseus complex

  • Lim, Tae-Ho;Min, Kyung-Wook;Park, Jae-Woo;Kim, Il-Joong;Park, Sung-Joon;Lim, Yeo-Myung;Lee, Dae-Hee;Seon, Kwang-Il
    • Bulletin of the Korean Space Science Society
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    • 2010.04a
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    • pp.32.5-32.5
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    • 2010
  • We present the FUV continuum map of The Taurus-Auriga-Perseus complex, which is one of the largest local association of dark clouds. The map is well consistent with the dust extinction and the CO emission map of the T-P-A region. The region is divided into 3 sub-regions by diffuse FUV intensities and the spectra of each region imply that the radiation field due to the Per OB2-association can be a main source of the H2 fluorescent emission of the nearby cloud region. We used the PDR H2 model, named CLOUD, developed by van Dishoeck &Black for the sake of comparing our results to the H2 model.

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A Study on the Understanding of Environmental Aesthetics and the Method of Empirical Approach (환경미학의 이해와 경험적 접근방법에 관한 연구)

  • 김주미
    • Korean Institute of Interior Design Journal
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    • no.5
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    • pp.59-65
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    • 1995
  • This thesis focuses on a study of design science, which is of a disciplinary character. And the purpose of such a study is to suggest a new direction to develop aesthetics through an empirical research into environmental psychol-ogy, human behavior, design thought, and the visual qual-ity of environment. The author of this study, since recognizing the necessi-ty of understanding environmental aesthetics as well as the necessity of aesthetics, has done an elementary study of empirical aesthetes, and then obtained some facts as follows: First, it is possible to analyse the visual characteristics immanent in the interrelations between human and envi-ronment by means of applying both the information the-ory of formal perception and expressional value and the perceptual theory of ecology to environmental aesthetics. Second, formal aesthetics is a science about the form and structure and in the meantime, symbolic aesthetics is a science about the environmental patterns giving pleas-ure to mankind and its associative meanings. Accordingly it is same as providing some aesthetic value to the ob-ject of environment design to apply some empirical data of visual quality to environmental design. Through such a process, users are provided or delivered with diverse, visual effect. In conclusion, environmental aesthetics is worthwhile to study, and its purpose is that it, as a framework of use-ful knowledge to the creation of the environment superi-or in quality, be applied to design.

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An Analysis of Clinical Application of Guibi-tang for Obstetrics and Gynecological Disease (동국대학교 일산한방병원 여성의학과에서의 귀비탕(歸脾湯) 임상 적용 사례 분석 연구)

  • Park, Jang-Kyung;Kim, Dong-Il
    • The Journal of Korean Obstetrics and Gynecology
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    • v.24 no.2
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    • pp.79-96
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    • 2011
  • Objectives: This study was to investigate clinical usage of Guibi-tang based on actual application in obstetrics and gynecology. Methods: This study investigated the number of patients who were prescribed Guibi-tang-gami-bang and what herbal medicines were adjusted according to their chief complaint from January 1st, 2007 to August 31th, 2008. Results: The number of patients who were prescribed Guibi-tang for obstetrics and gynecological diseases at the Department of Obstetrics and Gynecology was 721. Guibi-tang has been used to treat menstrual irregularity, postpartum general weakness, postpartum pantalgia, perimenopausal symptoms and postmenopausal syndrome most frequently. And Guibi-tang has been widely used in obstetric and gynecologic diseases such as general weakness after abortion or gynecological surgery, pelvic pain, dysmenorrhea, uterine myoma, endometriosis, infertility, premenstrual syndrome, urinary incontinence and breast disease. Conclusions: Guibi-tang can be used in obstetric and gynecologic diseases as described in classical oriental medicine literatures, and it is necessary to research clinical usage of Guibi-tang through randomized controlled trial.

A study on the fabrication of porous cermet electrode for molten carbonate fuel cell anode (용융탄산염 연료전지 양극용 다공성 cermet 전극제조에 관한 연구)

  • Lee, K. H.;Chang, D. Y.;Kim, M.;Kang, S. G.
    • Journal of the Korean institute of surface engineering
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    • v.26 no.6
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    • pp.291-298
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    • 1993
  • In order to substitute for porous nickel anode in Molten Carbonate Fuel Cell(MCFC), porous cermet elec-trode was fabricated with Ni and Ni-P coated ceramic powder. Ni and Ni-P were coated by electroless plat-ing method in the nickel solution containing of hydrazine and sodium hypophosphate as a reducing agent. The plating solution was stirred by air and mechanical agitator. Ultrasonic irradiation was applied to the plating bath to improved the effect of agitation and coating speed. Electorde was formed by pressing method and doc-tor blade method followed by sinterd at$ 800^{\circ}C$ for 6 hours in H2 environment. Anode performance test carried out by potentiodynamic polarization technique in the MCFC operating condition and 154-161mA/$\textrm{cm}^2$ as ob-tained as a anode current density at the+100mV overpotential.

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The Effect of Input Variables Clustering on the Characteristics of Ensemble Machine Learning Model for Water Quality Prediction (입력자료 군집화에 따른 앙상블 머신러닝 모형의 수질예측 특성 연구)

  • Park, Jungsu
    • Journal of Korean Society on Water Environment
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    • v.37 no.5
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    • pp.335-343
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    • 2021
  • Water quality prediction is essential for the proper management of water supply systems. Increased suspended sediment concentration (SSC) has various effects on water supply systems such as increased treatment cost and consequently, there have been various efforts to develop a model for predicting SSC. However, SSC is affected by both the natural and anthropogenic environment, making it challenging to predict SSC. Recently, advanced machine learning models have increasingly been used for water quality prediction. This study developed an ensemble machine learning model to predict SSC using the XGBoost (XGB) algorithm. The observed discharge (Q) and SSC in two fields monitoring stations were used to develop the model. The input variables were clustered in two groups with low and high ranges of Q using the k-means clustering algorithm. Then each group of data was separately used to optimize XGB (Model 1). The model performance was compared with that of the XGB model using the entire data (Model 2). The models were evaluated by mean squared error-ob servation standard deviation ratio (RSR) and root mean squared error. The RSR were 0.51 and 0.57 in the two monitoring stations for Model 2, respectively, while the model performance improved to RSR 0.46 and 0.55, respectively, for Model 1.

Physical Properties of Molecular Clouds in NGC 6822 Hubble V

  • Lee, Hye-In;Pak, Soojong;Oh, Heeyoung;Le, Huynh Anh N.;Lee, Sungho;Lim, Beomdu;Tatematsu, Ken'ichi;Park, Sangwook;Mace, Gregory;Jaffe, Daniel T.
    • The Bulletin of The Korean Astronomical Society
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    • v.44 no.1
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    • pp.66.4-66.4
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    • 2019
  • NGC 6822 is a dwarf irregular galaxy whose metal abundance is lower than of the Large Magellanic Cloud. Hubble V is the brightest HII complex where molecular clouds surround the core cluster of OB stars. Because of its proximity (d = 500 kpc), we can resolve the star-forming regions on parsec scales (1 arcsec = 2.4 pc). Using the high-resolution (R = 45,000) near-infrared spectrograph, IGRINS, we observed molecular hydrogen emission lines from photo-dissociation regions (PDRs) and $Br{\gamma}$ emission line from ionized regions. In this presentation, we compare our data PDR models in order to derive the density distribution of the molecular clouds on parsec scales and to estimate the total mass of the clouds.

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The kinematic properties of stellar groups in the Rosette Nebula: its implication on their formation process

  • Lim, Beomdu;Hong, Jongsuk;Naze, Yael;Park, Byeong-Gon;Hwang, Narae;Lee, Jeong-Eun;Yun, Hyeong-Sik;Park, Sunkyung;Yi, Hee-Weon
    • The Bulletin of The Korean Astronomical Society
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    • v.45 no.1
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    • pp.51.1-51.1
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    • 2020
  • The Rosette Nebula is the most actively star-forming region in the Monoceros OB2 association. This region hosts more than three stellar groups, including the most populous group NGC 2244 at the center of the region and the smaller stellar groups around the border of the H II bubble. To trace their formation process, we investigate the kinematic properties of these groups using the Gaia astrometric data and high-resolution spectra taken from observation with Hectochelle on MMT. The proper motions of stars in NGC 2244 show a pattern of radial expansion. The signature of cluster rotation is also detected from their radial velocities. On the other hand, the small groups appear to be physically associated with some clouds at the ridge of the H II region. Among them, the group near the eastern pillar-like gas structure shows the signature of feedback-driven star formation. In this presentation, we will further discuss the formation process and dynamical evolution of the stellar groups in the Rosette Nebula, based on the observation and results of N-body simulations.

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Effects of Silkworm Extract on Disaccharidase Activities of Small Intestine and Blood Glucose-Lowering in C57BL/6J Mice

  • Ahn, Jung-Mo;Hong, Jung-Hee;Kim, Mi-Lim;Lee, In-Seon;Rhee, Soon-Jae
    • Preventive Nutrition and Food Science
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    • v.10 no.1
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    • pp.34-39
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    • 2005
  • This study examined the anti-diabetic effect of a silkworm extract in C57BL/6J mice, an ob/㏈ model, fed a high fat diet for 8 weeks. The body weight was not significantly different with the silkworm-extract supplement, nor did food intake and body weight gains also did not differ significantly among the high-fat diet groups. However, the water intake by the silkworm-extract supplemented groups increased significantly compared with that by the distilled-water supplement group, nonetheless, the FER did not differ significantly. For all groups, the blood glucose increased the most after 30 minutes and yet returned to a fasting level within 90 minutes. The fasting time and resulting glucose tolerance for the silkworm-extract supplemented groups were significantly decreased compared to that for the high fat diet with distilled water supplement group, while the level of blood glucose in silkworm-extract supplemented groups was significantly decreased compared with than in the diabetic control group. The HbA1c and insulin levels were no different among the groups. The sucrase and lactase activities in the proximal small intestine were significantly decreased in the silkworm-extract supplement groups compared to that in the diabetic control group. There was no significant difference in the glycogen contents in the liver and muscle among the groups. In conclusion, it was found that the silkworm-extract supplement repressed the disaccharidase activity in the small intestines mucosa of the C57BL/6J mice.

Effects of Full Body Massage on Labor Pain and Delivery Stress Reaction for Primipara during Labor (분만 중 전신마사지가 초산부의 분만진통과 분만스트레스 반응에 미치는 효과)

  • Lee, Kun-Ja;Chang, Chun-Ja;Jo, Hyun-Sook
    • Women's Health Nursing
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    • v.9 no.3
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    • pp.224-234
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    • 2003
  • Purpose: This study was to test the effects of a full body massage on labor pain and delivery stress reaction for primipara during labor. Method: This study employed a quasi- experimental method(nonequivalent control group, pre-post test design). The subjects of this study were 57 primipara hospitalized at the U OB & GYN hospital in Inchon from November 1. 2001 to July 31, 2002. 28 women were assigned to the experimental group and 29 to the control group. The experimental group was given 20 minutes full body massage for each of three delivery phases. The control group was given conventional delivery care. The levels of labor pain were measured by the Visual Analogue Scale and the expression scores of the labor pain and the levels of delivery stress reaction were measured by pulse rate, respiration rate, and blood pressure, and State-Anxiety Scale. Data were analyzed using the repeated measures analysis of covariance(ANCOVA), t-test, $X^2$- test, simple ANCOVA with SPSS program. Result: There was no interaction effect between time and group(F=.370, p=.693), but significant time effects were found for subjective labor pain(F=3.840, p=.028). There was no interaction effect between time and group(F=.112, p=.894), but significant group effects were found for objective labor pain(F=12.299, p=.001). There was no interaction effect between time and group for PR(F=.172, p=.843), RR(F=.626, p=.539), SBP(F=.089, p=.915), DBP(F=.748, p=.479), but significant group effects were found for SBP(F=7.547, p=.008). The level of status anxiety of the experimental group was significantly lower than the control group(F=11.787, p=.001). Conclusion: This study showed that the full body massage has partially positive effect on labor pain and delivery stress reaction. Therefore this study suggested that the full body massage might be used clinically to help primipara during labor.

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The Clinical Report on 3 cases of the patient of extruded disc Treated with Motion Style Treatment (동작침법(M.S.T.)을 시행한 요추간판탈출증환자의 보행곤란 환자 치험 3례 보고)

  • Cho, Jae-Hee;Lee, Hyo-Eun;Song, Joo-Hyun;Moon, Ja-Young;Lim, Myung-Jang;Kang, In;Jang, Hyoung-Seok;Park, Young-Eun
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.2 no.2
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    • pp.131-140
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    • 2007
  • Objectives : the purpose of this study is to report the improvement of HIVD patients with gait difficulty, who treated by M.S.T(Motion Style Treatment) Methods : the clinical study was done on 3 cases of patients with disc extrusion, whose walking ability was not improved after the admission in Ja-Seng Oriental Medicine Hospital for a week. we checked the walking time and NRS score after the treatment of M.S.T(Motion Style Treatment) each day. Results : the walking time increased after the treatment of M.S.T(Motion Style Treatment). Whereas NRS score decreased after the treatment of M.S.T(Motion Style Treatment). after 2-3 weeks of treatment, 3 cases of patients could walk more than 20 minutes.

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