• Title/Summary/Keyword: ETC gun

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Food Organisms of Juveniles of Tridentiger of trigonocephalus Inhabited at Intertidal Zone of the Western Coast of Korea

  • Kim, Jong-Yeon;Jo, Soo-Gun;Yoon, Jong-Man
    • Proceedings of the Korean Aquaculture Society Conference
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    • 2002.08a
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    • pp.225-226
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    • 2002
  • To investigate the food organisms of the Tridentiger trigonocephalus during the juveniles stage, the stomach contents of fish, captured in the intertidal zone of Chungchongnam-do Sochon-gun Su-myon Dodun-ri getween on early June from end of May 1999, were observed. Total length of the juveniles of T. trigonocephalus was 5.5mm∼9.0mm size, and the participation rate of feeding was 68.5%. Main food organisms were such as copepods, shrimp larvae, polychaete larvae, and these occupied more than dry weight 2%. Copepods among them dominated the most quantitys by average 67.5%, and next, food organismsms appeared much by order of polychaete larvae and shrimp larvae etc.. Therefore, most important food organisms of juvenile stage of T. trigonocephalus were copepods, polychaete larvae, shrimp larvae etc.

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The Reserch of Alternation and Developement of Acu-Figure (침구동인(鍼灸銅人)의 발달(發達)과 변천과정연구)

  • Son In-Cheol
    • Journal of Acupuncture Research
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    • v.15 no.2
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    • pp.551-563
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    • 1998
  • 1. as following report, bronze-figure manufacture. started already in Jin(秦) monarchy. Bronze-figure had been existed in Ju(周) monarchy by ancient book, which is called Guem-In. And in 221 B.C., bronze-figure was manufactured. 2. In history, acu-figure was manufactured in 1027, Song(宋) Dynasty at first to study medicine. 3. ChunSeong acu-figure etc. were remade but new acu-figure was not. 4. GunRuang acu-figure, etc new acu-figure made in Jin Dynasty. 5. ChimGuem acu-figure are preserved in Korea at now.

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A Study on the Characteristics of Community Center in Cheongweon-gun (청원군지역 마을회관의 이용실태에 관한 조사연구)

  • Weon, Se-Young;Kim, Jeong-Jin;Park, Jae-Pyoung
    • Journal of the Korean Institute of Rural Architecture
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    • v.9 no.2
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    • pp.49-56
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    • 2007
  • The aim of this study is actual conditions to analyse of community center in Cheongweon-gun and propose operation method. In this study, I deduced some problems and proposed improvement planing corresponded to new needs through such as external appearance, inner space analysis, operating actual conditions analysis and etc., of existing community center in Cheongweon-gun. And I wish to present more efficient architectural space organization and operation method with these surveying results. The result of this study are as follows; Community center as representative community facilities is necessary to reflect of village characteristics on the exterior of buildings, and decision of scale and usage considered number of residents, visitors, and ages. For management of the community center, it is necessary of sustainable obtain of management cost, and provision against rebuilding and enlargement of building.

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Verification of Underwater Blasting Response Analysis of Air Gun Using FSI Analysis Technique (FSI 해석기법을 이용한 에어건 수중발파 응답해석 검증)

  • Lee, Sang-Gab;Lee, Jae-Seok;Park, Ji-Hoon;Jung, Tae-Young;Lee, Hwan-Soo;Park, Kyung-Hoon
    • Journal of the Society of Naval Architects of Korea
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    • v.54 no.6
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    • pp.522-529
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    • 2017
  • Air gun shock system is used as an alternative energy source as part of the attempt to overcome the restrictions of economical expense and environmental damage, etc., due to the use of explosives for the UNDerwater EXplosion (UNDEX) shock test. The objectivity of this study is to develop the simulation technique of air gun shock test for the design of model-scale one for the near field non-explosive UNDEX test through its verification with full-scale SERCEL shock test result. Underwater blasting response analysis of full-scale air gun shock test was carried out using highly advanced M&S (Modeling & Simulation) system of FSI (Fluid-Structure Interaction) analysis technique of LS-DYNA code, and was verified by comparing its shock characteristics and behaviors with the results of air gun shock test.

Study of Hydrogen Combustion with n Gun-type Burner (건타입 버너의 수소 연소에 관한 연구)

  • Lee, Young-Lim;Lee, Kum-Bae;Sim, Kyu-Sung;Jun, Yong-Du;Ryu, Jae-Eun
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.27 no.11
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    • pp.1579-1586
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    • 2003
  • A gun-type burne. fur a LPG(Liquified Petroleum Gas) boiler was utilized for hydrogen combustion. The study was performed to obtain fundamental data prior to the design of a very low NO$\_$x/, hydrogen-fueled burner. First, numerical simulations were performed to predict mixing characteristics between air and fuel flows, and temperature distributions, etc. Experimental study was then performed to find out flame lengths, temperature distributions, and NO$\_$x/ concentrations. The results showed that a gun-type burner for a LPG boiler can be successfully used for hydrogen combustion without any major retrofitting. The hydrogen flame was very stable and 75 ppm of NO$\_$x/ in average was observed for the conditions considered in this study. Hydrogen combustion could be therefore a solution to avoid the problem of green-house gas(CO$_2$) if hydrogen becomes cost-effective.

Characteristics of Output Energy and Optical Parameters in Welding of Braun Tubes by Pulsed Nd:YAG Laser (펄스 Nd:YAG 레이저에 의한 브라운관 부품의 용접시 빔의 출력특성과 광학변수)

  • Kim Jong-Do;Ha Seung-Hyup
    • Laser Solutions
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    • v.8 no.1
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    • pp.27-37
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    • 2005
  • During laser spot welding of the braun tube electron gun, phenomena such as serious spattering and oxidative reaction, etc. were occurred. The spatter occurred from weld pool affects the braun tube, namely it blocks up a very small hole on the shadow mask and causes short circuit between two poles of the electron gun. We guessed that high power density and oxidative reaction are main sources of these problems. So, we studied to prevent and to reduce spatter occurring in spot welding of the braun tube electron gun using pulsed Nd:YAG laser. The characteristics of laser output power was estimated, and the loss of laser energy by optical parameter and spatter was measured by powermeter. The effects of welding parameters, laser defocused distance and incident angle, were investigated on the shape and penetration depth of the laser welded bead in flare and flange joints. From these results, the laser peak power was a major factor to control penetration depth and to occur spatter. It was found that the losses of laser energy by optic parameter and sticked spatter affect seriously laser weldability of thin sheets.

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A Report on the Results of Korean Medicine Health Promotion Project 'Vitality UP Health UP Class for Climacteric Women' in Boeun-gun in 2022 (2022년도 보은군 한의약 건강증진사업 '갱년기 여성 활력UP 건강UP 교실'에 대한 결과 보고)

  • Beom-Chan Park;Jung-Woo Park
    • The Journal of Korean Obstetrics and Gynecology
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    • v.36 no.2
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    • pp.1-19
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    • 2023
  • Objectives: The purpose of this health promotion project for Korean medicine is to promote the health of climacteric women in Boeun-gun. Methods: During the project, pressure needle acupuncture treatment, herbal medicine treatment, meditation pore therapy, and health education were conducted. To evaluate the results, basic health surveys (body height, body composition test, blood pressure etc.), female hormone tests, Kupperman's index (KI), Menopause-specific quality of life questionnaire (MENQOL), and Perceived stress scales (PSS) were conducted. Results: No significant change was observed in the body composition test and blood pressure after the project. Follicle stimulating hormone (FSH) was significantly increased after the project, but Luteinizing Hormone (LH) and total estrogen levels were not significantly changed. KI and MENQOL scores significantly decreased after the project, and significantly decreased in 4 out of 11 items of KI and 3 out of 4 domains of MEMQOL. No significant change was observed in the PSS score after the project. Conclusions: From the results of this project, it can be seen that the Korean medicine health promotion project can help alleviate symptoms of climacteric syndrome and postmenopausal syndrome.

Investigation on the Turbulent Flow Characteristics of a Gun-Type Gas Burner with the Different Shape of Baffle Plate (배플판 형상이 다른 Gun식 가스버너의 난류유동 특성치 고찰)

  • Kim, Jang-Kweon;Jeong, Kyu-Jo
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.28 no.4
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    • pp.475-485
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    • 2004
  • This paper was studied to investigate and compare the effects of inclined baffle plate on the turbulent flow characteristics of a gun-type gas burner through X-Y plane and Y-Z plane respectively by using X-probe from hot-wire anemometer system. For this purpose, two burner models with a cone-type baffle plate and a flat-type one respectively were used. The fast jet flow spurted from slits plays a role such as an air-curtain because it encircles rotational flow by swirl vanes and drives mixed main flow to axial direction regardless of the inclination of baffle plate. The inclined baffle plate causes axial mean velocity component and turbulent intensities etc. to be greatly concentrated towards the central part of a burner, and its effect especially appears in the range of about X/R=1.0-2.0. Also, it gives much larger size to axial mean velocity component and turbulent intensities etc formed near the slits in the range of X/R=1.4103. Especially the inclined baffle plate shifts more the Reynolds shear stress uw to the central region of a burner(Y/R=${\pm}$0.75) than the flat-type one, moreover it develops more strongly than uv.

A Study on the Relation between the Hollowization and the Phenomenon of Decreasing and Aging Population in Rural Villages - Focused on Geumsan-gun - (농촌마을의 공동화와 과소·고령화 현상의 관련성 연구 - 충남 금산군을 중심으로 -)

  • Cho, Young-Jae;Kim, Du-han;Cho, Eun-Jung
    • Journal of Korean Society of Rural Planning
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    • v.21 no.4
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    • pp.85-94
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    • 2015
  • The purpose of this study is to investigate how the hollowization in rural villages which causes marginal villages appears in Korean rural villages and whether the hollowization has relation with decrease and aging of population or not. For achieving the research objective, survey was carried out focused on Geumsan-gun. As a result, it confirmed that rural out-migration and rural decline especially in 'people', 'land(economic situation)' and 'community' have being progressed. Also variance analysis and regression analysis were executed with using the number of population and the ratio of people over 65 as dependent variables and using each survey contents(variables) as independent variables. The results of analysis showed that the ratio of people over 65(+), the income level per household(-), the rate of fallow lands(+), the number of empty houses(+), programs for urban-rural interchange(+), and the implementing public projects(+), etc. have a relation with the number of population(-) and the number of population(-), the income level per household(-), the rate of fallow lands(+), the number of empty houses(+), activities of communities(+), and the implementing public projects(+), etc. have a relation with the ratio of people over 65(+) (+: increase, -: decrease). So the hollowization in people', 'land(economic situation)' and 'community' has direct relation with decrease and aging of population in rural areas.

A Study for Management and Effects of Children's Care Program with Traditional Korean Medicine in Public Health Center (보건소 건강증진 사업 중 한방육아교실의 운영과 효과에 관한 연구)

  • Park, Eun-Seong;Moon, Yeun-Hee;Kim, Yang-Hee;Choi, Kyung-Hee;Jang, Dong-Wook
    • The Journal of Korean Medicine
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    • v.33 no.1
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    • pp.52-67
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    • 2012
  • Objectives: The purpose of this study was to evaluate the effects and develop the contents of a children's care program with traditional Korean medicine in a public health center. Methods: Data were collected from 28 parents who participated in a children care program with traditional Korean medicine. The program was started in June of 2011 in Gangjin-Gun public health center and finished in September of the same year. The questionnaires to measure effect and satisfaction with the program were composed of demographic items, family information, Psychological Well-Being Scale (PWBS), Parenting Stress Index (PSI), children health improvement checklist, etc. The questionnaires were executed before and after the program. Results: The PWBS scores increased (4.00, 3.66) and PSI scores decreased (-7.30. -5.95) significantly after the program. The satisfaction with the program was 100%, and 94% in the two groups, and treatment and lecture were mentioned as the best aspects of the program. Eating habits, sleep conditions, and activity also improved after the program. Conclusions: From these results, the children care program with traditional Korean medicine is worthy for improving children's health condition and reducing their parents' stress.