• Title/Summary/Keyword: Globe

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Traumatic Displacement of the Globe into the Maxillary Sinus: Case Report (외상성 상악동 안구탈출의 치험례: 증례보고)

  • Lim, Chan Soo;Kang, Dong Hee
    • Archives of Plastic Surgery
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    • v.34 no.4
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    • pp.524-527
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    • 2007
  • Purpose: Globe displacement due to a blowout fracture is a rare clinical phenomenon. The authors present reduction of a globe displacement to the maxillary sinus due to trauma suffered in a fall and the reconstruction of a large defect left in the medial and inferior orbit. Methods: A 39-year-old male patient was unable to open his left eye after being struck on the periorbital area by a metal edge. Laceration was not noted in that area but we were unable to observe the intraorbital globe. A facial computed tomography (CT) scan showed that the globe was displaced through the maxillary sinus. A transconjunctival approach was used to access the infraorbital margin and the globe entrapped in the inferior margin of the orbit was successfully reduced. A large defect in the medial and inferior orbit was reconstructed using a graft from the iliac bone. Results: In 5 months after the operation, no atrophy of the globe was seen. Both sides retained a similar shape. A satisfactory functionality outcome in terms of improved extraocular muscle movement, and a satisfactory aesthetical outcome were achieved. Conclusion: The authors report the reduction of a globe displaced to the maxillary sinus following a fall and the reconstruction of the large defect left in the medial and inferior orbit.

Dynamic Analysis of Air Operated Globe Valve (공기구동형 글로브밸브의 동적거동해석)

  • 양상민;박종학;김동진;허태영;김봉호;신성기;김찬용
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1022-1025
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    • 2003
  • Although the globe is the most typical valve to control high pressure drop in piping system, it is very hard to figure out the characteristics of flow field in the globe valve caused by its complex geometry. So there is very few studies to find out flow characteristics of globe valve. In this study, numerical analysis for flow field in the globe valve is carried out using the Fluent code which is commercial CFD program. Pressure drop through the globe valve is also measured to verify the results come from numerical analysis. Comparing experiment with numerical analysis, two results are very close to each other. Also finite element method is employed to evaluate the safety of globe valve using the results coming from the flow analysis to make the boundary conditions for FEM analysis. Maximum stress appears on the inlet channel of valve where inlet flow runs against. Because the maximum stress between 11.7 MPa to 3.6 MPa is within 3.4% of yield stress. the structural safety of valve is considered to be very sound

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3D Flow Analysis of Globe Valve with Air Operated Actuator (공기구동형 글로브 밸브의 3차원 유동 해석)

  • Chung, M. H.;Yang, S. M.;Lee, H. Y.
    • The KSFM Journal of Fluid Machinery
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    • v.8 no.4 s.31
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    • pp.7-13
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    • 2005
  • Although the globe is the most typical valve to control high pressure drop in piping system, it is very hard to figure out the characteristics of flow field in the globe valve caused by its complex geometry, So there is very few studies to find out flow characteristics of globe valve. In this study numerical analysis for flow field in the globe valve is carried out using the FLUENT code which is commercial CFD program. Pressure drop through the globe valve is also measured to verify the results come from numerical analysis. Comparing experiment with numerical analysis, two results are very close to each other.

On the Characteristics of Globe Temperature Variation Observed at Downtown in Summer Season (하계에 도심지에서 관측된 흑구온도의 특성 분석)

  • Park, Jong-Kil;Jung, Woo-Sik;Kim, Seok-Cheol;Park, Gil-Un
    • Journal of Environmental Science International
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    • v.17 no.8
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    • pp.907-918
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    • 2008
  • In order to monitor the impact of high temperature which is seen frequently with climate change, we investigated the monthly change in globe temperature, air temperature, mean radiant temperature and effective radiant heat flow, because the four well reflect thermal radiation from bio-meteorological aspect. Both globe temperature and air temperature showed an increasing trend every month. Compared to air temperature, globe temperature had a wider range of temperature change and was more influenced by meteorological element such as precipitation. Diurnal trends of air temperature, globe temperature and the difference between their temperature had the lowest value before the sunrise and the highest around $1300{\sim}1500$ LST, showing the typical diurnal trends. Globe temperature and the difference between their temperature had a sharp increase around $1000{\sim}1100$ LST, maintained high value until 1700 LST and then reclined, though varied by month. The difference between globe temperature and air temperature was highly dependent on the amount of precipitation and clouds. The duration in which globe temperature was higher than air temperature was the lowest in July. Therefore the amount of precipitation was the most affecting, followed by the amount of clouds and wind. In order to find out the diurnal trends of temperature in city center and city outskirts, we assumed the roof of a concrete build ing as a city center, and the grass-covered observatory of the Gimhae International Airport as city outskirts. The diurnal trends of temperature in the two sites showed a strong correlation. The highest and lowest temperature also had the same trend.

Design and Implementation of Education Globe System Based on Multimedia (멀티미디어 기반 교육용 지구의 시스템의 설계 및 구현)

  • Cho Soo-Hyun;Kim Young-Hak;Lee Jae-Ho
    • Journal of the Korea Society of Computer and Information
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    • v.11 no.4 s.42
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    • pp.127-135
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    • 2006
  • In the existing education using the globe. teaching contents are very simple and the relationship among learning units lacks a little bit because teaching materials are composed individually with the globe. Therefore, in this study, we developed the education glove system based on multimedia that is closely connected with teaching materials and the globe. This system is composed of the globe device and the learning software based on computer control. The globe device rotates itself on its axis as the solar center, and provides more efficient and visual education environment to students through the link between computer and the globe. The learning software provides the multimedia contents such as parallax, climate, culture, and education information about each country, and this software also can simulate the revolution of the earth around the sun. The globe device can be operated in off-line without the computer link. This system was developed by the industry cooperation and was displayed in the principal exhibitions. We have obtained positive results through the exhibitions and will promote the product in the future.

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A Study on Structural Design of Cryogenic Miniature Globe Valve using Finite Element Method (유한요소법을 이용한 극저온 미니어쳐 글로브 밸브의 구조설계에 관한 연구)

  • Jeong, Ho-Seung;Cho, Jong-Rae;Kim, Jeong-Hwan;Kim, Jung-Ryul;Park, Jae-Hyoun;Kim, Young-Hwan
    • Journal of Advanced Marine Engineering and Technology
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    • v.31 no.4
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    • pp.343-349
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    • 2007
  • This cryogenic miniature globe valve is used to transfer the liquified natural gas which temperature is $-169^{\circ}C$, supplied pressure is 30bar(3.0MPa). In the present work the temperature distribution and thermal deformation is calculated numerical the FE method is useful to predict the thermal matter of cryogenic miniature globe valve. For this reason, to optimum design of the cryogenic miniature globe valve the analysis of the parameter about bonnet has been studied. It's used 3-D modeling to analyze cryogenic globe valve, which is 1/2". Numerical study used 3-D modeling makes a decision of efficient process of product before producing in the factory. A commercial software(ANSYS 10.0) is used in the structural analysis for cryogenic globe valve.

The Present Situation and Science High School Teachers' Perception about Field Application of the GLOBE Program in Korea (국내 글로브 프로그램 운영 현황 및 지도교사들의 인식)

  • Lee, Moon-Won;Kim, Hwa-Sung;Ludman, Allan
    • Journal of the Korean earth science society
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    • v.31 no.1
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    • pp.63-70
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    • 2010
  • The purpose of this study was to investigate the application of GLOBE program in Korea and its perception displayed by the Science High school Teachers. The interview using a questionnaire with 12 science high school teachers in Korea was conducted. It was attempted to find a problem occurring during the practical application for getting a basic data for the development of Korean GLOBE program. The results of this study are as follows: (1) The level of GLOBE program was for upper grade levelsin elementary school and middle school. The program may not be suitable for the Science High School students in Korea. (2) To successfully apply the GLOBE program in Korea, study levels and research subjects in the program must be further developed in terms of quality and areas. Suggestions for the possibility of adopting and operating the program in Korea are made as follows: (1) To effectively manage the GLOBE school sites, there has to be a headquarter system in place and operation under, say, the Korean Earth Science Society. (2) To ensure the program's identity and goals, it is to set up a center for the Korea GLOBE program with a financial support system established.

The Effect of Urban Shade Trees on the WBGT(Wet Bulb Globe Thermometer Index) (도심 녹음수의 체감온도지수(WBGT) 조절효과)

  • 주민진;이춘석;류남형
    • Journal of the Korean Institute of Landscape Architecture
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    • v.32 no.3
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    • pp.51-59
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    • 2004
  • Focusing on WBGT(Wet Bulb Globe Thermometer Index) according to the LAI(Leaf Area Index) variation of trees, this study verifies the effects of urban shade trees on the outdoor thermal environment. As for methodology, air$.$globe temperature, air humidity and WBGT were measured under three shade trees whose LAIs were 2.1, 4.0 and 8.2 respectively at midday(12:00-13:00) of 14 sunny days from the 4th through the 29th day of September 2003. Those factors were also measured at the unshaded areas and compared with the values of shaded areas. The measured site was paved with interlocking concrete bricks. The measurements were analyzed through the ANCOV A(Analysis of Covariance) and the regression routines of SPSS11 for windows (SPSS Inc., 2001). The major findings were as follows. 1. The direct correlation between WBGT and LAI was very low. On the contrary, the WBGT showed close correlation with air$.$globe temperature and air humidity, and the LAI also showed very close correlation with globe temperature. These results tell that dominant shading effect by the tree is on the screening of direct solar radiation which lower the globe temperature and WBGT consequently. 2. While the average globe temperatures and WBGT at unshadowed area were 40.4$^{\circ}C$ and 26.2$^{\circ}C$ respectively, the former under the shade tree with LAI 2.1, 4.0 and 8.2 were 34.5$^{\circ}C$, 32.6$^{\circ}C$ and 30.2$^{\circ}C$, and the latter were 24.6$^{\circ}C$, 24$^{\circ}C$ and 23.4$^{\circ}C$ respectively. 3. The relationship between LAI(x) and WBGT(y) can be presented with the following equation: y = 24.23+1.53 $e^{-x}$+0.36x $e^{-x}$+0.46 $x^2$ $e^{-x}$ ($R^2$ =.98) =.98)

Selection of Artichoke (Cynara scolymus L.) for N on-Heated Cultivation in Jeju Island (제주지역에서의 무가온 하우스재배에 적합한 아티초크 품종 선발)

  • Seong, Ki-Cheol;Kim, Chun-Hwan;Lee, Jin-Su;Um, Young-Cheol;Kang, Kyong-Hee
    • Journal of Bio-Environment Control
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    • v.17 no.4
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    • pp.293-296
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    • 2008
  • This study was carried to select artichoke (Cynara scolymus L.) varieties that can be cultivated in non-heated greenhouse during winter in Jeju Island in Korea. Artichoke varieties namely, 'Purple Romagna' (Neseed Co.), 'Imperial Star' (Keithley Williams Seed Co.), 'Green Globe' (Park Seed Co.), 'Emerald' (Ferry-morse Seed Co.), 'Italian' (Unknown), and 'Carciofo Di Romagna' (Lortolano), were raised in a plug tray with 72 cells for two months and transplanted in a non-heated greenhouse on October 5, 2004. The first harvesting of 'Emerald' and 'Imperial Star' were the earliest and April 26 and 27, 2005 respectively. Most of the varieties were harvested from early May to June 2005. The number of head per plant was the highest in 'Green Globe' with more than five heads and the lowest were recorded in 'Italian' with one head or less. The weight of heads per plant was more than 228 g in 'Purple Romagna', 'Imperial Star' and 'Green Globe'. The highest yield was in 'Green Globe' with 2,172 kg/10a, followed by 'Imperial Star' with 1,947 kg/10a. Accordingly, it is considered that 'Green Globe' and 'Imperial Star' are adequate for the high-yield cultivation in non-heated greenhouse in Jeju Island. They can be harvested from the April to June when cultivated from the early October of the previous year.

Study on Field Observations of the Thermal Environment in the Downtown Location and the Outskirt Site (하절기 도심과 외곽지의 열특성 비교 관측)

  • Jung, Im-Soo;Choi, Dong-Ho;Lee, Bu-Yong
    • 한국태양에너지학회:학술대회논문집
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    • 2009.11a
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    • pp.21-25
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    • 2009
  • This study is about heat island as one of the urban climate variation factors in urbanized modern society, which compared and observed the thermal characteristics both the downtown location and the outskirt site in summer. The diurnal air temperature range at each point is $12.6^{\circ}C$ in the downtown location and $14.3^{\circ}C$ in the outskirt site, so, it was found that the diurnal air temperature range in the outskirt site was $1.7^{\circ}C$ higher than in the downtown location. There was 20 minutes difference to reach the highest temperature between globe temperature and air temperature in the downtown location, however, the time spent to reach the highest temperature between globe temperature and air temperature in the outskirt site was the same. When we compared the globe temperature between the downtown location and outskirt site, we found that the temperature in the outskirt site was lower than in the downtown location after sunset due to the sudden temperature drops, although the exposed time to insolation in the outskirt site is longer. The average of globe temperature difference on the sample days was $1.1^{\circ}C$, the average of surface temperature difference on the sample days was $1.0^{\circ}C$, and the average of air temperature difference on the sample days was $2.0^{\circ}C$ Thus, it was found that the average of air temperature difference was higher than the average of globe temperature and the average of surface temperature. The result of this study is that the urban environment factors have more effect on the air temperature difference than globe temperature and surface temperature.

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