• Title/Summary/Keyword: 장폐쇄

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Intermediate-term Result of Tricuspid Annuloplasty for Tricuspid Regurgitation Associated with Congenital Heart Disease in Adult (성인 선천성 심기형에 동반된 삼첨판막 폐쇄부전의 판막륜 성형술 후 중기성적)

  • Yun, Tae-Jin;Kim, Sang-Hwa;Lee, Jun-Wan;Park, Jeong-Jun;Song, Hyun;Lee, Jae-Won;Seo, Dong-Man;Song, Meong-Gun;Song, Jong-Min;Kang, Duck-Hyun;Song, Jae-Kwan;Jang, Wan-Sook;Kim, Young-Hwue;Ko, Jae-Kon;Park, In-Sook
    • Journal of Chest Surgery
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    • v.36 no.3
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    • pp.136-141
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    • 2003
  • We assessed the intermediate-term result of tricuspid annuloplasty (TAP) for tricuspid valve regurgitation (TR) associated with congenital heart disease in adults. Risk factors for residual TR were also analysed. Material and Method: From August 1989 to June 2001, seventy three adult patients, 51 females and 22 males, underwent TAP for TR associated with various congenital heart disease. Their age ranged from 46 years to 73 years (mean:43). Associated heart anomalies were atrial septal defect (55), ventricular septal defect (6), partial anomalous pulmonary venous return (4) and others (8). Preoperative and post-operative TR velocities were 3.25 m/sec and 2.56 m/sec respectively, and the types of TAP were De Vega in 43, Kay in 18 and Ring annuloplasty in 12. Postoperative follow-up duration was 2,347 patient-month (mean: 32.6 months), and 134 two-dimensional echocardiographic examinations were done during this period. Residual TR greater than III/IV was considered as TAP failure. Result: TAP failure was observed in 7 patients (9.6%), and one patient among them underwent tricuspid valve replacement. Risk factors for TAP failure were diagnosis other than atrial septal defect (p=0.001), preoperative (p=0.038) and postoperative (p=0.028) high TR velocity. There was no statistical significance in terms of TAP methods. Conclusion: Careful evaluation of valve morphology and aggressive surgical intervention are mandatory for the repair of TR with preoperative or residual RV pressure overload.

Study on the Shear Strengthening of Concrete Beams with Wire Rope Clamped by Bolts (볼트 체결된 와이어 로프를 이용한 RC 보의 전단보강에 대한 연구)

  • Kim, Sun-Young;Song, Jin-Gyu;Lee, Young-Uk;Byun, Hang-Yong
    • Journal of the Korea Concrete Institute
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    • v.18 no.2 s.92
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    • pp.283-290
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    • 2006
  • The paper describes m experimental study on the shear strengthening of concrete beams with exposed wire rope. The strengthening method is using the mechanical bolting of wire rope tensioned on the exterior of beam section. There are two shear strengthening types. The first is closed type wrapped beam section with wire rope like as closed stirrup. The second is U type tensioned at the anchor located in the side of beam section. The main parameters of specimens are strengthening spacings of wire rope with 150, 200, and 250mm for the closed and U type respectively. The shear span ratio of specimens applied by 3-point loading is 4. The results showed that the ultimate shear strength and ductility of strengthened beams increased significantly compared with non-strengthened beams. Especially, the strengthening effect of closed type was very preferable to U type. Therefore, the shear strengthening method with wire rope is very reasonable in view of repair and rehabilitation of beams.

Quality of Potato Plug Seedlings as Affected by Photosynthetic Photon Flux and Electric Conductivity of Nutrient Solution (광합성유효광양자속과 배양액의 전기전도도가 감자 플러그묘의 묘소질에 미치는 영향)

  • 이상헌;김용현;이명규;최유화
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 2003.04a
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    • pp.140-145
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    • 2003
  • 폐쇄형 묘생산 시스템을에서 기내 배양된 감자 소식물체를 이용하여 플러그묘의 생산이 시도(Kim 등, 2002)된 이래 묘소질이 우수한 감자 플러그묘를 생산하기 위한 연구가 지속되고 있다(이 등, 2002, 2003). 묘소질은 정식 후 활착의 용이, 수량 증대 및 품질의 우수성을 제공하는 잠재력으로서, 초장, 절간장, 엽형, 엽색 등과 같은 외적 소질과 광합성속도, 엽록소함량, 근활력 등 내적 소질로 구분된다(Kim, 2002). (중략)

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점검-HPAI 발생시 긴급방역조치 및 정부의 활동

  • Kim, Dong-Uk
    • KOREAN POULTRY JOURNAL
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    • v.38 no.12 s.446
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    • pp.110-114
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    • 2006
  • 지난 11월 23일 전북 익산에서 의사조류인플루엔자가 발생하면서 방역당국을 긴장시키고있다. 이에따라 정부는 고병원성 AI 판정에 대비하여“조류인플루엔자 방역실시요령”및“ 긴급행동지침(SOP)”에 의거 의심 닭 발생농장의 닭과 계란 등을 이동제한 조치하고 당해 농장의 종란을 부화시키는 익산소재 부화장 2곳에 대해 폐쇄조치를 취하였다. 본고는 발생에 따른 긴급방역조치 절차는 물론 정부에서 추진하고 있는 AI방역에 따른 활동상황을 기술하고자 한다.

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Atresia Coli in Two Newborn Calves (신생 송아지의 결장폐쇄 2례)

  • Jang Kwang-Ho;Nam Tchi-chou
    • Journal of the korean veterinary medical association
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    • v.28 no.8
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    • pp.486-490
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    • 1992
  • Colic atresia located at 40cm,96cm apart from ileo-ceco-colic orifice, respectively and colon was also obstructed approximately 100cm apart from anus in two calves. penile sized, belt like colons which were filled with white mucosa were connected between

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한국 서해산 웅어, Coilia nasus 생식소의 성숙과 산란

  • 이봉우;정의영;최기호
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2003.05a
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    • pp.345-346
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    • 2003
  • 웅어 Coilia nasus는 청어 목 (Clupeifarmes), 멸치 과 (Engraulidae)에 속하는 어류로 우리나라 서해안으로 유입되는 하천 (압록강, 대동강, 임진강, 한강, 금강, 동진강)의 기수역에 서식하는 황해 특산 식용어 중 하나이다 (김ㆍ강, 1993). 최근 금강 하구댐이 완성되어 농업용수를 위해 수문이 폐쇄되어 기수와 차단되어 본 종의 산란시기에 담수역으로 이주할 수 없게 되었고, 인근지역인 동진강 유역도 새만금 간척사업으로 막히게 되어 산란장을 잃게 되었다. (중략)

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집중탐구 - 닭·오리 농장·부화장에 CCTV 의무설치

  • 한국오리협회
    • Monthly Duck's Village
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    • s.194
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    • pp.18-23
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    • 2019
  • 7월 1일부터 조류인플루엔자(AI) 등 가축전염병에 신속히 대응할 수 있도록 닭 오리 농장에 폐쇄회로(CCTV) 설치가 의무화된다. 살충제 사용을 위반한 산란계 농가는 전문 업체를 통한 해충 방제를 의무적으로 실시해야 한다. 농어촌에 거주하면서 영농 창업을 희망하는 비(非)농업인도 귀농인에 준해 창업이나 주택 구입 등에 필요한 자금을 지원받을 수 있게 됐다. 농식품 계열 대학에 재학 중인 고학년 학생들은 졸업 후 농업분야 취 창업을 조건으로 등록금 전액을 지원받을 수 있는 장학금에 도전해볼 수 있다. 기획재정부가 내놓은 농림축산식품부 소관 '2019년 하반기 달라지는 주요 제도'를 소개한다.

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Operative Treatment of Congenitally Corrected Transposition of the Great Arteries(CCTGA) (교정형 대혈관 전위증의 수술적 치료)

  • 이정렬;조광리;김용진;노준량;서결필
    • Journal of Chest Surgery
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    • v.32 no.7
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    • pp.621-627
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    • 1999
  • Background: Sixty five cases with congenitally corrected transposition of the great arteries (CCTGA) indicated for biventricular repair were operated on between 1984 and september 1998. Comparison between the results of the conventional(classic) connection(LV-PA) and the anatomic repair was done. Material and Method: Retrospective review was carried out based on the medical records of the patients. Operative procedures, complications and the long-term results accoding to the combining anomalies were analysed. Result: Mean age was 5.5$\pm$4.8 years(range, 2 months to 18years). Thirty nine were male and 26 were female. Situs solitus {S,L,L} was in 53 and situs inversus{I,D,D} in 12. There was no left ventricular outflow tract obstruction(LVOTO) in 13(20%) cases. The LVOTO was resulted from pulmonary stenosis(PS) in 26(40%)patients and from pulmonary atresia(PA) in 26(40%) patients. Twenty-five(38.5%) patients had tricuspid valve regurgitation(TR) greater than the mild degree that was present preoperatively. Twenty two patients previously underwent 24 systemic- pulmonary shunts previously. In the 13 patients without LVOTO, 7 simple closure of VSD or ASD, 3 tricuspid valve replacements(TVR), and 3 anatomic corrections(3 double switch operations: 1 Senning+ Rastelli, 1 Senning+REV-type, and 1 Senning+Arterial switch opera tion) were performed. As to the 26 patients with CCTGA+VSD or ASD+LVOTO(PS), 24 classic repairs and 2 double switch operations(1 Senning+Rastelli, 1 Mustard+REV-type) were done. In the 26 cases with CCTGA+VSD+LVOTO(PA), 19 classic repairs(18 Rastelli, 1 REV-type), and 7 double switch operations(7 Senning+Rastelli) were done. The degree of tricuspid regurgitation increased during the follow-up periods from 1.3$\pm$1.4 to 2.2$\pm$1.0 in the classic repair group(p<0.05), but not in the double switch group. Two patients had complete AV block preoperatively, and additional 7(10.8%) had newly developed complete AV block after the operation. Other complications were recurrent LVOTO(10), thromboembolism(4), persistent chest tube drainage over 2 weeks(4), chylothorax(3), bleeding(3), acute renal failure(2), and mediastinitis(2). Mean follow-up was 54$\pm$49 months(0-177 months). Thirteen patients died after the operation(operative mortality rate: 20.0%(13/65)), and there were 3 additional deaths during the follow up period(overall mortality: 24.6%(16/65)). The operative mortality in patients underwent anatomic repair was 33.3%(4/12). The actuarial survival rates at 1, 5, and 10 years were 75.0$\pm$5.6%, 75.0$\pm$5.6%, and 69.2$\pm$7.6%. Common causes of death were low cardiac output syndrome(8) and heart failure from TR(5). Conclusion: Although our study could not demonstrate the superiority of each classic or anatomic repair, we found that the anatomic repair has a merit of preventing the deterioration of tricuspid valve regurgitations. Meticulous selection of the patients and longer follow-up terms are mandatory to establish the selective advantages of both strategies.

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The evaluation of rotational movements of maxillary posterior teeth using three dimensional images in cases of extraction of maxillary first premolar (3차원 영상을 이용한 상악 소구치 발치공간 폐쇄 후 상악 구치부 회전양상의 평가)

  • Chong, Deuck-Ryong;Jang, Yen-Ju;Chun, Youn-Sic;Jung, Sang-Hyuk;Lee, Sung-Keun
    • The korean journal of orthodontics
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    • v.35 no.6 s.113
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    • pp.451-458
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    • 2005
  • Cephalometric superimposition is unable to evaluate tooth movement along the occlusal plane and the errors of photographing and superimposition of the occlusogram is also inevitable. The purpose of the present study was to evaluate the rotational movements of the maxillary posterior teeth following space closure after extraction of maxillary first premolars. using 3D dental images. In 19 adult females. analysis of rotational movements of the maxillary posterior teeth was performed between the initial and final 3D dental images superimposed on the maxillary hard palate. The results showed a diversity of rotational movements of posterior teeth. The causes of various rotational movements may be different rotation of molars in each case at the beginning of treatment. individual characters of the dental arch and tooth morphology. The results of the study indicate that accurate evaluation of rotational movements of posterior teeth following space closure after extraction of premolars using 3D dental images can be obtained through the subdivision of tooth movement during the initial aligning, space closure and finishing stages.

A study on the computer simulation model of the closed moving system using the nutation force (폐쇄된 계의 장동 힘에 의한 이동장치의 컴퓨터 씨뮬레이션 모델에 관한 연구)

  • Chung, Byung-Tae
    • Journal of the Korea Computer Industry Society
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    • v.6 no.2
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    • pp.331-336
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    • 2005
  • The closed movement produced vertically on the position of a motor is a notation movement produced by a notation force , while the horizontal movement can be shown by the coriolis force and the transverse force of realizing that the closed movement of the closed system is to be rotation motion. The notation movement is a vertical closed movement and by searching the equation which becomes an equation model, after comparing the simulation data from the equation model with data of a real device to use it into the computer simulation model, the additional variable elements were decided. As the result, the energy imbalance element is added as a variable about load which is relevant to friction coefficient and pole of a motor in the gravitational field. The simulation can be applied as a real physical law of the graphic game and haptic program.

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