• 제목/요약/키워드: Gunsan

검색결과 471건 처리시간 0.027초

AN APPLICATION OF PROJECTIVE REPRESENTATION TO FINITE GROUPS

  • JEON, WON-GEE
    • 호남수학학술지
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    • 제1권1호
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    • pp.55-60
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    • 1979
  • 군(群)의 표현론(表現論)은 유한군(有限群)의 성질구명(性質究明)에 많이 이용(利用)되여진다. 이 글에서도 어떤 조건하(條件下)에서 p-Sylow 군(群) $S_p$가 order p을 갖는 두 개의 순회군(巡回群)의 곱으로 분해(分解)됨을 표현론(表現論)에 의하여 증명(證明)을 시도(試圖)한다(본문(本文) Thorem 7).

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열중량 반응기를 이용한 제지슬러지의 연소 특성 (Combustion Characteristic of Paper Sludge Using TGA Reactor)

  • 육찬남;김정수;한광수
    • 환경위생공학
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    • 제18권3호통권49호
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    • pp.48-58
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    • 2003
  • To obtain the preliminary design data for combustion of paper sludges, decomposition characteristics and combustion kinetics of paper sludges reactor have been determined in a TGA reactor. Also, the combustion characteristics of paper sludges have been determined in a fluidized bed reactor. The data obtained from the TGA reactor indicate that dewatering of paper sludge is terminated at temperature below 130${\circ}$C. With heating rate of 20${\circ}$C/min, combustion is terminated at temperature below 340${\circ}$C .The combustion rate is found to be first order with respect to temperature and oxygen concentration. Activation energies for paper wastes are found to be 570, 700, 2600, 4600 Kcal/mole, respectively. The calcination conversions were investigated with the operating temperature and residence time. In this investigation, it was found that calcination conversion was affected by the operating temperature and residence time. The optimum conditions of operating temperature and mean residence time were 850${\circ}$C and 6 minutes of respectively.

타워 관측 자료를 이용한 연안 대기 경계층 내 바람 자원의 연직 변동 특성 (Characteristics of Vertical Variation of Wind Resources in Planetary Boundary Layer in Coastal Area using Tall Tower Observation)

  • 유정우;이화운;이순환;김동혁
    • 한국대기환경학회지
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    • 제28권6호
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    • pp.632-643
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    • 2012
  • Analysis of wind resources in Planetary Boundary Layer (PBL) using long term observation of tall tower located near coast line of the Korean Peninsula were carried out. The data observed at Pohang, Gunsan and Jinhae are wind, temperature and relative humidity with 10 minute interval for one year from 1 October 2010. Vertical turbulence intensity and its deviation at Pohang site is smaller than those of other sites, and momentum flux estimated at 6 vertical layers tend to show small difference in Pohang site in comparison with other sites. The change of friction velocity with atmospheric stability in Pohang is also not so great. These analysis indicate the mechanical forcing due to geographical element of upwind side is more predominant than thermal forcing. On the other hand, wind resources at Gunsan and Jinhae are mainly controlled by thermal forcing.

서남해연안해역에서 Tetrabromobisphenol A의 노출농도 및 그들의 광화학적 분해 특성 (Exposure Concentration of Tetrabromobisphenol A in Southwestern Coast and Their Photodecomposition Characteristics)

  • 한상국
    • 한국환경과학회지
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    • 제25권3호
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    • pp.373-383
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    • 2016
  • The aim of this study is to determine the exposure concentration of tetrabromobisphenol A(TBBPA) in southwestern coast and their photodecomposition rate. Also, it is to identify the radical species of the photodecomposition of TBBPA and their reactive byproducts using the electron spin resonance(ESR) method. TBBPA was not detected in any of the sea water samples from Mokpo, Gunsan, or Goheung. The sediment samples from Mokpo contained not detection(N.D)~50.0 ng/g dry wt., while those from Gunsan contained N.D~28.5 ng/g dry wt. and those from Goheung contained N.D~7.3 ng/g dry wt. The photodecomposition rates were $2.56{\times}10^{-6}/hr$ by visible light(400 nm), $7.98{\times}10^{-6}/hr$ by ultraviolet light(300 nm <), and $6.78{\times}10^{-6}/hr$ by sunlight. Also, we confirmed that singlet oxygen and hydroxyl radicals are the key reactive oxygen species at wavelengths greater than 400 and 300 nm, respectively. This study shows that the main byproducts formed during irradiation at wavelengths above 300 nm are 2,6-dibromobenzosemiquinone radical(2,6-$DBSQ{\cdot}^-$) and g-value 2.0048 doublet spectrum.

Surveys on Gymnophalloides seoi Infection in the Gogunsan Gundo (Islands) of Korea

  • Lee, Kyu-Jae;Ahn, Yung-Kyum;Park, Gab-Man;Ryang, Yong-Suk;Koo, Seong-Dae;Kwang-yong kim;Hyun Prak;Soh, Chin-Thack
    • 한국패류학회지
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    • 제15권2호
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    • pp.121-125
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    • 1999
  • The present study aimed to elucidate whether and intestinal fluke, Gymnophalloides sp. exist in Gogunsan-gundo located at western part of Korean Peninsula; about 100 km apart from Gunsan city, Jeollabuk-do, Korea. The survey was carried out Two times each in 1997 and 1998, examining stool samples by means of formalin-ether concentration method. Results are summarized as follows : of 411 fecal samples examined, Gymnophalloides sp. positives were 19 (8.9%); 9.5% inMunyeodo, 1% in Seonyudo, but none in Jangjado. The positive cases did not show any specific clinical complaints. Prevalence rate of Gymnophalloides seoi metacercariae from oysters, Crassostrea gigas were 80.8%

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흡연 유무에 따른 구강건강 관련 삶의 질의 관련요인 (Oral health-related quality of life (OHIP-14) according to smoking)

  • 전기하;이주열;이지은
    • 한국치위생학회지
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    • 제15권5호
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    • pp.889-898
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    • 2015
  • Objectives: The purpose of the study is to investigate the oral health-related quality of life (OHIP-14) according to smoking in the male workers in Gunsan. Methods: A self-reported questionnaire was completed by 460 male workers in Gunsan from April 13 to 30, 2015. Among 460 workers, smokers were 205 and nonsmokers were 255. The questionnaire included three questions of general characteristics of the subjects, four questions of subjective oral health, fourteen questions of OHIP, ten questions of sobriety test (AUDIT), and eight questions of smoking (Fagerstrom Test for Nicotine Dependence, FTND). Data were analyzed by frequency analysis, t-test, ANOVA, Pearson's correlation, and multiple regression analysis using IBM SPSS(Statistical Package for the Social Science) for Windows 20.0 program. Results: In the nonsmokers, there was a negative correlation between the alcohol consumption, dental health condition, tooth pain, gum bleeding, and halitosis. The higher OHIP in the smokers had the negative correlation with nicotine dependence, alcohol consumption, tooth pain, gum bleeding, and halitosis. In order to improve OHIP, smokers are encouraged to manage gum bleeding, and non-smokers to halitosis. Conclusions: In order to improve OHIP, cessation of smoking and alcohol consumption is very important and it can lead to improve the quality of life in the workers.

교통약자의 행동특성과 이동편의시설 설치요소를 통한 여객시설 디자인방법에 관한 연구 - 군산 국제·연안여객선 터미널을 대상으로 - (Barrier Free Design Methods applied in Passenger Terminals based on Characteristics of Transportation Poor & Barrier Free Elements - Focused on the Gunsan International*Coastal Passenger Boat Terminal -)

  • 박병민;심은주
    • 한국실내디자인학회논문집
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    • 제22권5호
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    • pp.344-356
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    • 2013
  • Due to implementation of legislations for translation poor such as handicapped people, elderlies, children most public buildings are now integrating barrier free design methods. However, barrier free design is still considered as constraints of physical elements that only serve to meet functional aspects for minors and conflict with designs of the space. The authors believe that it is time that barrier free design is considered not as constraints but opportunities that both meet functional and aesthetical needs serving the growing population of transportation poor and others as well. This paper has looked into characteristics of transportation poor and barrier free design elements of passenger terminals and developed 4 categories of design methods. applied by using human sense, form, furniture, and architectural elements. Then the authors analyzed Gunsan International and coastal passenger terminal existing conditions which is considered to be designed to meet barrier free guidelines and legislations through the developed design categories and elements. The result turned out that the subject in regard of barrier free designs for transportation poor lack various applications such as forms that can be used as symbolic and directional elements that assists as wayfinding cues. Also, flexible and multi functional approaches in furniture arrangements, structural approaches are needed.

A Study of Stroke Patients' Leisure Activities and Quality of Life

  • Paek, Hyun Hee;Seo, Eun Jin;Kim, Jeong Ja
    • 국제물리치료학회지
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    • 제5권2호
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    • pp.764-771
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    • 2014
  • This study was conducted in order to examine relationship between stroke patients' degree of satisfaction with leisure and quality of life according to their leisure activity types and whether they conducted leisure activities. A direct survey was performed from April 8 to May 3, 2013 on 92 inpatients and outpatients who received occupational therapy at hospitals located in Jeonju and Gunsan. A frequency analysis was carried out in order to look at the general characteristics of the subjects, their degree of participation in leisure activities, and their degree of satisfaction with leisure activities. A Pearson's coefficient was used to examine relationship between their degree of satisfaction and quality of life according to participation in leisure activities. Their degree of satisfaction according to participation in leisure activities was significantly higher when they took part in leisure activities such as handicraft activities, sports activities, or travel or tourism activities than when they did not perform any leisure activities. Their quality of life according to participation in leisure activities was higher when they conducted sports activities, outing activities, or tourism activities than when they did not. There was significant correlation between their degree of satisfaction with leisure and quality of life according to leisure activities.

하구언 설치에 따른 하천유사량 변화에 관한 연구 (Reservoir Sedimentations of the Enclosure of Estuary Barraye in Gumgang Basin)

  • 이중기
    • 물과 미래
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    • 제9권1호
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    • pp.86-100
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    • 1976
  • To study influences on the downstream, and the Gunsan harbor by setting up estuary of the Gumgang, available data which were collected from the measuring stations which were established within the river basin of which results attained are as follows: 1. The discharge can be calculated as the relationship between the discharge and precipitation in the basin is $R=4{\times}10^{-4}p^2$ or R=P-600 2. The discharge flow in to small resevoirs in the basin can be estimated as $QR=QS\frac{PR-600}{PS-600}(\frac{AR}{AS})$ 3. This daily average discharge at Kongju is 31% less than the during maximum probable discharge and that in Okcheon is 48% less than the daily maximum probable flood. 4. The maximum probable flood from the small stream in the basin can be estimated by a $Q=82.45A^{0{\cdot}464}$ 5. Sediments can be computed with Qs (suspended load)=1.41 $Q^{1{\cdot}42}$ and Qb (bed load)=165.2 $Q^{0{\cdot}705}$. 6. By setting up the specific estuary the tidal movement will be reduced to 93.6% on the average and the sedimentation is reduced to 96.0%. Upon review of overall analysis, the dead wate level of estuary of Gumgang will completely sedimented in next 30 years, therefore, the dredging work at Gunsan harbor is reduced to 73.6%, it is considered that life length will be extended about 52years taking account the existing condition.

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