• Title/Summary/Keyword: Repair of defect

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공동주택의 2차 하자 유발공종 분석 (Analysis of Construction Types Causing Secondary Defects in Apartment Buildings)

  • 허영철;주재현;방홍순;김옥규
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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    • pp.74-75
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    • 2019
  • There are certain types of construction that produces many defects during the construction of apartment buildings. It may be due to construction errors in the type itself, but more often, it is due to defects derived from other types of construction. Thus, to reduce such secondary defects and prevent fundamental defects in particular types of construction, academic research on the types of construction causing secondary defects should be actively conducted. In addition, as claimed in this study, the industries should work harder to improve the quality of the type of construction that causes secondary defects, rather than just trying to improve the ostensible problems. If the efforts of each sector are backed up, the disputes over defect repair in apartment building construction will reduce in general, which in turn will lead to a reduction in national loss within the construction industry.

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Fibrous composite matrix of chitosan/PLGA for tissue regeneration

  • Shim, In-Kyong;Hwang, Jung-Hyo;Lee, Sang-Young;Cho, Hyun-Chul;Lee, Myung-Chul;Lee, Seung-Jin
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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    • pp.237.3-238
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    • 2003
  • Tissue engineering may be adequately defined as the science of persuading the body to regenerate or repair tissue that fail to regenerate or heal spontaneously. In the various techniques of cartilage tissue engineering, the use of 3-dimensional polymeric scaffolds implanted at a tissue defect site is usually involved. These scaffolds provided a framework for cells to attach, proliferate, and form extracellular matrix(ECM). The scaffolds may also serve as carriers for cells and/or growth factors. In the ideal case, scaffold absorb at a predefined rate so that the 3-dimensional space occupied by the initial scaffold is replaced by regenerated host tissue. (omitted)

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임신으로 인한 횡격막 탈장 1례 (A case of diaphragmatic hernia associated with pregnancy)

  • 손광현;이남수;이건주
    • Journal of Chest Surgery
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    • 제13권2호
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    • pp.154-157
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    • 1980
  • A twenty three year old, Primigravida and 32 week pregnant woman who has been complained dyspnea, chest pain, nausea and vomiting was admitted to this chest surgical department on Feb. 19, 1979. Physical findings were those of acutely ill appearance, decreased thoracic excursion and absence of breath sounds in the left hemithorax. Roentgen examination of the chest revealed reticular cystic densities in the left, particularly in lower lung field with collapse of the left lung. Correction of the diaphragmatic hernia was carried out with reduction and repair of the hernia through transperitoneal approach. On exploration, the defect of the diaphragm was 12 x 12 cm in size and was located posterolateral area of left diaphragm. Hernia contents were stomach, spleen, omentum and splenic flexure of large bowel. The baby was normal full term spontaneous delivered at 36th POD. Diaphragmatic hernia complicated by pregnancy is a rarity and mortality is extremely high. Therefore, the literatures have reviewed and the case is reported.

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비소성시멘트를 사용한 고강도 콘크리트의 조기강도 추정 연구 (A Study on Early Strength Estimation of High-strength Concrete Using Non-sintering Cement (NSC))

  • 김한식;임상준;강인석;박무영;문경주;정상진
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2006년도 춘계 학술발표회 논문집(II)
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    • pp.609-612
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    • 2006
  • The quality of the concrete compression strength can be determined after the passage of 28 days, but if any defect is found the quality of concrete after that length of time, there can be serious problems in dismantling and repair. Thus, in response to the use of concrete using non sintering cement (NSC), the present study purposed to propose a method of managing the strength of high strength concrete using NSC in comparison with high strength concrete using ordinary Portland cement (OPC) through early strength estimation using microwave, which enables the quick estimation of the strength of high strength concrete using NSC.

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Scimitar 증후군의 외과적 치험 (Intracardiac Repair of Scimitar Syndrome)

  • 허진;장봉현;이종태;김규태
    • Journal of Chest Surgery
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    • 제25권12호
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    • pp.1476-1481
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    • 1992
  • This presents a case of anomalous pulmonary venous drainage from the right lung to the inferior vena cava [scimitar syndrome], which was corrected with an intracardiac approach. Autogenous pericardium was used to create an intracardiac tunnel redirecting flow from the anomalous vein to the left atrium through a surgically enlarged atrial septal defect. The postoperative results have veen satisfactory.

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횡경막 탈장증 [Morgagni 형]치험 2례 (Diaphragmatic hernia [Morgagni hernia]: 2 cases report)

  • 김은기
    • Journal of Chest Surgery
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    • 제16권2호
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    • pp.221-225
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    • 1983
  • Morgagni, in 1760, 1st. described the findings of substernal herniation of abdominal contents into the thoracic cavity, based upon 25 postmortem dissections. Herniation through the foramen of Morgagni is the rarest occurrence of the congenital diaphragmatic hernias and is usually a few symptoms. With the increasing use of routine chest roentgenogram & the need to exclude the possibility of a mediastinal neoplasm, most such cases are brought to the attention of a surgeon. We had experienced 2 cases of Morgagni hernia, which one caused a simple mechanical intestinal obstruction & diagnosed as acute appendicitis with perforation & another one was diagnosed as mediastinal lipoma on routine chest X-ray film at arrival due to traffic accident. We had performed left paramedian abdominal incision as misdiagnosis of acute appendicitis with perforation and repair of the defect and returned transverse colon & stomach into abdominal cavity in one patient. And in another patient, we preferred to approach through right thoracotomy incision and then left upper paramedian abdominal incision and returned the omentum into the abdominal cavity. The post-operative courses were in uneventful and we report these cases and review and discuss the literatures.

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동맥관개존증의 외과적 요법 (Surgical Management of Patent Ductus Arteriosus)

  • 홍종완
    • Journal of Chest Surgery
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    • 제21권6호
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    • pp.990-995
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    • 1988
  • Seventeen cases of vascular injuries treated in Chungnam National University Hospital during the period from Apr. 1980 to Sep. 1988 were reviewed. Common causes of injuries were stab wound, automobile accidents and iatrogenic injuries. Of the 11 arterial injuries, 3 were femoral artery which was the commonest in frequency, the next was 2 cases of subclavian, common carotid, iliac artery. Of the 10 venous injuries, the subclavian vein and internal jugular vein were common in frequency. The most frequent type of injuries was laceration[13 cases in 21]. Vascular reconstruction was done by lateral suture repair in 8 cases, autogenous vein graft in 2, prosthetic vascular graft in 5, direct anastomosis in 1 case. Simple ligation was done in 5 cases. There was 1 case of visual field defect as a sequelae in right common carotid artery transaction and 1 case of mortality.

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Carbon Fibers for the Repair of External Abdominal Hernias in Bovines, Caprines and Canines: A Review of 18 Clinical Cases

  • Kumar, Naveen;Sharma, A.K.;Gangwar, A.K.;Maiti, S.K.;Gupta, O.P.;Kumar, N.;Mathur, R.B.
    • Carbon letters
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    • 제7권2호
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    • pp.81-86
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    • 2006
  • During a 3-year period (2001-2004) 18 animals were surgically treated because of abdominal wall defects (hernia). Out of 18 animals 8 were bovines, 5 caprines and 5 canines. In each case the defect was bridged with carbon fibres. Carbon fibres were placed either in simple interrupted pattern or as mattress overlapping pattern. All the cases were successfully treated and no complication was observed up to six months postoperatively.

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Blood Blister-Like Aneurysm with Rupture Point Close to Origin of Anterior Choroidal Artery

  • Park, Jaechan
    • Journal of Korean Neurosurgical Society
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    • 제56권6호
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    • pp.500-503
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    • 2014
  • If a ruptured blood blister-like aneurysm (BBA) arises from the lateral or superolateral wall of the internal carotid artery (ICA) at the level of the anterior choroidal artery (AChA), its proximity to the origin of the AChA presents a serious surgical challenge to preserve the patency of the AChA. Two such rare cases are presented, along with successful surgical techniques, including the application of a C-shaped aneurysm clip parallel to the ICA and a microsuture technique to repair the arterial defect. The patency of the AChA and ICA was successfully preserved without recurrence or rebleeding of the BBA during a 1-year follow-up after the operation.

구조시스템의 퍼지신뢰성해석 및 상태평가모델 (Condition Assessment Models and Fuzzy Reliability Analysis of Structural Systems)

  • 이증빈;손용우;박주원
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 1998년도 가을 학술발표회 논문집
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    • pp.61-68
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    • 1998
  • It has become important to evaluate the qualitive reliability and condition assessment of existing structural systems in order to establish a rational program for repair and maintenance. Since most of if existing structural system may suffer from defect corrosion and damage, it is necessary to account for their effects in fuzzy reliability analysis, In this paper, an attempt is made to develope a reliability analysis for damaged structural systems using failure possibility theory. Damage state is specified in terms of linguistic valiables using natural language information and numerical information, which are defined by fuzzy sets. Using a subjective condition index of failure possibility and information of the damage state is introduced into the calculation of failure probability. The subjective condition index of quantitative and qualitative analysis method is newly proposed based on the fuzzy set operations, namely logical product, drastic product, logical sum and drastic sum

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