• 제목/요약/키워드: Under drainage

검색결과 521건 처리시간 0.02초

터널 배수처리 및 시설개선방안에 관한 연구 (A Case study on the Improvement of Tunnel Drainage systems)

  • 유상건;박태순;이준석
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2001년도 추계학술대회 논문집
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    • pp.398-403
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    • 2001
  • Since the urban subway is normally constructed under the groundwater level, the drainage system will be one of the most important factors during maintenance period. Therefore, to investigate suitability of the design approach and the construction specification, the inflow and the contents of the groundwater in the Route 5 of Seoul subway system are analysed. From these, the possibility of the design improvement and the economy of the maintenance cost are proposed.

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벼 무논골뿌림 재배시 중간낙수 및 생장조절제 처리가 생육 및 도복에 미치는 영향 (Growth and Lodging of Rice as Affected by Growth Regulators under Different Midsummer Drainage Times in Puddled-soil Drill Seeding)

  • 김상수;백남현;이선용;김종호;조동삼
    • 한국작물학회지
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    • 제40권6호
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    • pp.697-704
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    • 1995
  • 벼 무논 골뿌림 재배시 물관리방법 및 생장조절기 처리가 생육 및 도복에 미치는 영향을 구명하고자 1994년에 미사질양토(전북통)인 호남 농업시험장 시험포장에서 동진벼를 5월 11일에 골깊이 4cm에 파종하고 중간낙수 회수 및 생장조절제를 처리하여 생육 및 도복형질을 검토한 결과를 요약하면 다음과 같다. 1. 상시심수에 비하여 2회 낙수구에서 간장이 짧았으며 생장조절제에는 Inbenfide G. > IMP G. > 무처리 순으로 간장이 단축되었다. 2. 상시심수에 비하여 2회 낙수구에서 간벽이 두껍고 뿌리량 및 뿌리의 심층분포 비율이 높았으나 생장조절제간에는 일정한 경향이 없었다. 3. 도복지수는 상시심수보다 2회 낙수구가 적고 생장조절제에는 세리타드 > 키타진 > 무처리의 순으로 적었으며 도복은 2회 낙수구에서는 생장조절제 무처리에서만 약간 발생하였으나 상시심수구에서는 무처리 > IBP G.> Inabenfide G.의 순으로 도복발생이 심하였다. 4. 쌀수량은 상시심수구의 생장조절제 무처리에서만 감수하였고 기타 처리에는 별 차이가 없었다 5. 따라서 벼 무논골뿌림 재배시는 생장조절제를 처리하지 않아도 2회(파종후 30일과 50일)에 실금갈 정도로 중간낙수만 하면 도복을 방지 할 수 있을 것으로 생각된다.

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기낭성 폐기종의 외과적 치료 (Surgical Treatment of Emphysematous Bullae)

  • 김형묵
    • Journal of Chest Surgery
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    • 제6권2호
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    • pp.165-170
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    • 1973
  • The selection and treatment with resection and drainage for patients with emphysematous bullae is discussed with reference to two patients recently. One case with bilateral multiple bullous emphysema resulting tension pneumothorax due to rupture of the bullae on right, 47 year old man with pulmonary tuberculosis history for 16 years, was treated with resection of the bullae on right including upper lobectomy and c!osed rhoracostomy drainage on left for another spontaneous pneumothorax, and result was excellent for 6 month after discharge. Another 53 year old man with giant tension air cysts occupying right whole lung field and shifting mediastinum to the left was treated with right under water sealed closed thoracostomy drainage for 7 days in vain, and resection was not performed for his poor respiratory function and general condition. The most useful preoperarive information was obtained from a study of the plain chest radiogram and the surgical procedure of choice was obliteration of the bullae at thoracotomy.

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전페정맥 이상환류 (TAPVD)의 치험 1례 (Total Anomalous Pulmonary Venous Drainage with A.S.D.)

  • 오재상;박영관;김근호
    • Journal of Chest Surgery
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    • 제13권2호
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    • pp.110-117
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    • 1980
  • This is a case report of total anomalous pulmonary venous drainage with Atrial septal defect, which was corrected surgically by intracardiac procedure under total cardiopulmonary bypass. This 9 years old girl, she complained mild cyanosis, exertional dyspnea, and frequent upper respiratory infection from 3 months age. The chest X-ray showed cardiomegaly and a "snow man appearance", she has systolic murmur with splitting of S2. The diagnosis was confirmed with right heart catheterization, the catheter was reached to right pulmonic vein passed through right atrium, right superior vena cava, innominate vein, left superior vena cava, and common venous trunk. On 28th, Dec. 1979, an anastomosis between common pulmonary venous trunk and left atrium, Pericardial patch closure of ASD, and ligation of left superior vena cava were performed with Extra-corporeal circulation. The postoperative course was uneventful and discharged with excellent general condition.Total Anomalous Pulmonary Venous Drainage with A.S.D. with A.S.D.

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농흉에 대한 임상적 고찰 - 109례 - (Clinical Evaluation of Thoracic Empyema)

  • 심재영
    • Journal of Chest Surgery
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    • 제23권5호
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    • pp.899-904
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    • 1990
  • One hundred and nine Patients with thoracic empyema were treated at the Chosun university hospital from Jul. 1983 to Sep. 1989. Seventy-nine[72.5%] of the empyemas were adults and 30[27.5%] patients were under fifteen-year children. 29 patients[26.6%] were associated with pulmonary tuberculosis, 23[21.1%] occurred as pneumonia, and 13[11.9%] were unknown. The cardinal symptoms were dyspnea, chest pain, fever, coughing. When used as the initial mode of drainage, repeat thoracentesis was successful in only 46 of 93 cases[49. 5%]. Rib resection, however, provided cure or controlled in 7 cases[100%]. And decortication showed high cure rate in 19 of 24 cases[79.2%] Eventual control or cure of empyema was achieved in 90 patients[89.6%], whereas 7 patients[6.4%] died [3 from their empyema and 4 with empyema as an active problem at the time of death]. of all empyema-caused deaths occurred in patients who underwent chest tube drainage as the most invasive treatment modality. Chest tube drainage was often inadequate and more aggressive management was likely to result in fewer treatment failure and fewer total procedure. Early rib resection was recommended.

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남부평야지 미질향상을 위한 재배기술 개선 (Cultural Practices for Improving Grain Quality of Rice in Southern Plain Area)

  • 최민규;전병태;박석홍
    • 한국작물학회지
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    • 제35권6호
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    • pp.487-491
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    • 1990
  • 미질향상을 위한 재배기술을 구명하고자 재배시기, 수비 및 실비시용량, 출수후 락수시기 등을 달리하여 시험한 결과를 요약하면 다음과 같다. 1. 재배시기는 늦어질수록 완전립 비율이 떨어지고 청미와 사미의 비율이 증가되었으며, 아밀로스함량도 높아지는 경향이었다. 2. 수비 및 실비 시용량간에는 완전미비율에 큰 차이가 없었으나 무시용에서 약간 높았다. 아밀로스 함량과 단백질함량은 시비량이 증가함에 따라 약간씩 높아지는 경향이었다. 3. 출수후 조기낙수함에 따라 완전립비율은 낮아지고 청미와 사미는 증가하는 경향이었다. 단백질 함량은 낙수시기에 따라 큰 변화는 없으나 아밀로스 함량은 후기락수할수록 낮아졌다.

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용수로의 자연친화적 정비 및 설계 (Consolidation and Design of Naturally Favorable Irrigation Canals)

  • 김선주;양용석;안민우
    • 농촌계획
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    • 제8권2호
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    • pp.50-56
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    • 2002
  • In 1980s, studies on the river environment and the management techniques to maintain the quality of water achieved actively. From the beginning of 1990s, the concept considering the river ecology and conservation in urban area have been introduced in Korea. Recently, some environment friendly projects on the rivers have been executed and some are under way. Many small rivers in rural areas have been maintained considering landscape and partly ecology. However until the pilot project named Songsam drainage channel project started in 1998, there were no studies and projects on the irrigation and drainage channels considering environment friendly maintenance. Korea Agricultural and Rural Infrastructure Corporation (KARICO) is going to introduce environment friendly and naturally favorable maintenance technique when the new projects to reform the irrigation and drainage channels are planned. Irrigation channel in O-dong project site in Yeomsan-myeon, Younggwang-gun was designed considering environment friendly consolidation and maintenance.

경추 손상과 동반된 하행성 괴사성 종격동염 (Descending Necrotizing Mediastinitis Combined with Cervical Spine Injury)

  • 금동윤;양보성
    • 대한기관식도과학회지
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    • 제7권1호
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    • pp.76-79
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    • 2001
  • A 60-year-old male was admitted due to cervical spine injury (C7-T1 fracture dislocation) and quadriparesis after slip down. During conservative management in department of neurologic surgery, he complainted of fever, dyspnea, neck swelling. Follow up cervicothoracic CT revealed abscess pocket in paraglottic, retropharyngeal, anterior cervical spaces and mediastinum. Also noted bilateral pleural effusions. Under impression of descending necrotizing mediastinitis (DNM). cervical drainage and bilateral chest tube insertion was performed immediately. On next day. mediastinal drainage through mediastinotomy was performed with careful handling of cervical spine. Escherichia coli was identified in bacteriologic culture. Wire fixation of dislocated C7-T1 spine through Posterior approach was performed on 30th days after mediastinotomy. Right chest tube was removed on 40th days. At now, the patient is on rehabilitation and physical training program. DNM is relatively rare, but lethal disease with high mortality. Immedate and sufficient mediastinal drainage is essential in treatment.

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A Summary of Recent Pilot Machine and Commercial Machine Trials Comparing a New Microparticle Retention System with Existing Microparticle Technologies

  • Johnson, Gray;Gerli, Alessandra
    • 펄프종이기술
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    • 제34권5호
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    • pp.86-92
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    • 2002
  • The benefits of high performance retention systems have been long recognized by the paper maker. The inter-relation between chemical retention and drainage and their effect on paper production efficiency and paper quality is significant. The subject of this paper is a summary of recent studies comparing three microparticle programs made under highly controlled pilot and commercial paper machine conditions. The results presented in this paper suggest that, in addition to improvements in machine operation, the retention, drainage and formation program can have a marked influence on the paper quality. Improvement of the topographical characteristics of the base paper was observed when the microparticle was a colloidal borosilicate inorganic oxide.

Interspecific Differences of the Capacities on Excessive Soil Moisture Stress for Upland Crops in Converted Paddy Field

  • Jung, Ki-Yuol;Choi, Young-Dae;Chun, Hyen-Chung;Lee, Sanghun;Kang, Hang-Won
    • 한국토양비료학회지
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    • 제49권2호
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    • pp.157-167
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    • 2016
  • The interspecific estimation for tolerance capacities of upland crop species to excessive soil water stress in paddy field is significant in agricultural practices. Most of upland crops can be damaged by either excessive soil water or capillary rise of the water table during rainy season in paddy fields. The major objective of this study was to evaluate water stress of upland crops under different drainage classes in converted paddy field. This experiment was carried out in poorly drained soil (PDS) and imperfectly drained soil (IDS) of alluvial sloping area located at Toero-ri, Bubuk-myeon, Miryang-si, Gyeongsangnam-do. The soil was Gagog series, which was a member of the fine silty, mixed, nonacid, mesic family of Aeric Endoaquepts (Low Humic-Gley soils). Two drainage methods, namely under Open ditch drainage methods (ODM) and, Closed pipe drainage methods (PDM) were installed within 1-m position at the lower edge of the upper paddy fields. The results showed that sum of excess water days ($SWD_{30}$), which was used to represent the moisture stress index, was 42 days (the lowest) in the PDM compared with 110 days in the ODM. Most of upland crops were more susceptible to excessive soil water during panicle initial stage on more PDS than on IDS. Yield of upland crops in the PDM was continuously increased by the rate of 15.1% on sorghum, 15.4% foxtail millet, 53.6% proso millet, 49.6% soybean and 47.9% adzuki bean as compared in the ODM. The capacity for tolerance by excessive soil water based on yield of each upland crop in the poorly drained sloping paddy fields was the order of sorghum, soybean, foxtail millet, proso millet and adzuki bean. Therefore, Sorghum is relatively tolerant to excessive soil water conditions and, may be grown successfully in converted paddy field.