• KIEAE Journal
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• 제16권4호
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• pp.79-86
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• 2016

Purpose: Frequently, the apartment management offices have difficulties in effective repair works due to their insufficient technological capability to operate long-term repair program. There also have been many cases of failure in executing urgent repairs mainly because the repair allowance has not accumulated enough for the repair works on time. This study aimed to determine core items in apartment maintenance in order to reduce the confusion and unnecessary efforts for the management office by suggesting simple list of repair items. Method: Core items are defined using several indicators. The degrees of necessity for repair work(NRW) are calculated combining the impacts to living, safety, and aesthetics. Then the degrees of burden of repair cost(BRC) are estimated by analyzing actual long-term repair program of three apartment complexes. Lastly the degrees of accumulation demand for repair allowance(AD) are calculated with NRW and BRC. Result: The core items and essential items are suggested for three apartment types as case studies based on the indicators of NRW, BRC, and AD. Then, the required accumulated allowance per $m^2$ was calculated to effectively implement repair works.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 추계 학술논문 발표대회
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• pp.114-115
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• 2013

The maintenance and repair period consists the largest part of a construction project life cycle cost. However, it has been analyzed that the repairing plan relies on regulations and the officers' experience mostly that sometimes lead to performing unnecessary work. Moreover, the data occurred during repairing have not been stored in a system that can be used in future plans. Therefore, the purpose of this study is to suggest a repairing cost and time predicting model by applying the properties of the building.

• Computational Structural Engineering : An International Journal
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• 제1권1호
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• pp.71-80
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• 2001

A reliability approach to evaluate structural performance has gained increased acceptability and usage over the past two decades. Most reliability analyses are based on the reliability of an individual component without examining the entire structural system. These analyses often result in either unnecessary repairs or unsafe structures. This study uses examples of series, parallel, and series-parallel models of structural systems to illustrate how the component reliabilities affect the reliability of the entire system. The component-system reliability interaction can be used to develop optimum lifetime inspection and repair strategies for structural systems. These examples demonstrate that such strategies must be based on the reliability of the entire structural system. They also demonstrate that the location of an individual component in the system has a profound effect on the acceptable reliability of that component. Furthermore, when a structure is deteriorating over time, the reliability importance of various components is a1so changing with time. For this reason, the most critical component in the early life of the structure may not tie the most critical later.

• Journal of Chest Surgery
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• 제25권5호
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• pp.550-554
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• 1992

The selection of an appropriate surgical technique for repair of aneurysm of the ascending aortia with aortic insufficiency is unsettled. The etiology of the disease process has been the best indicator for the type of repair. Placement of a supracoronary graft[seperate graft and valve] is a compromise if the coronary ostia are displaced cephalad by the aneurysm, where as insertion of a valved conduit is difficult and unnecessary if the coronary ostia are normally placed. A 53 year old female patient underwent primary repaiar of proximal dissected layer and aortic valve replacement with 24mm carbomedics, The operative findings consisted of a supravalvular intimal tear, cicumferential dissection, dilated aortic annulus and normal position of coronary ostia. She is good physical activity now llmonths posoperatively.

• 토지주택연구
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• 제7권1호
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• pp.43-51
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• 2016

장기수선계획은 공동주택 수선공사의 시행 기준으로서 장기수선충당금의 적립과 예방보전을 통한 효과적인 시설물관리의 기반을 제공하는 것이며 정부에서는 장기수선계획의 중요성을 감안하여 공동주택의 장기수선공사를 위한 대상항목과 수선주기, 수선율을 법으로 정하고 있다. 그러나 수립기준에 포함된 수선공사의 항목이 최근의 공법 등을 반영하여 적기에 개정되지 못함에 따라 실제 아파트 단지에서 장기수선계획의 빈번한 변경, 수선공사를 둘러싼 논란, 충당금 사용 상의 어려움을 가져오고 있다. 이러한 문제를 해결하기 위해서는 실태분석을 통해 계획수선 항목의 적정성을 평가하여 수립기준을 조정하는 것이 요구된다. 본 연구에서는 장기수선계획과 수선공사 데이터를 통해 파악할 수 있는 현황을 바탕으로 주요 수선항목을 도출하고 수립기준을 조정하는 방안을 제안함으로써 장기수선계획의 운영을 담당하는 관리주체의 부담을 저감함과 동시에 적정수준의 수선충당금 적립을 유도하여 건물 내구연한의 연장과 수선공사 실질화를 위한 방안을 제안하고자 하였다. 이를 위해 광범위하게 장기수선계획 사례를 수집하여 계획에의 항목 채택률을 검토하고, 장기수선충당금 사용내역과 관리비 상의 수선유지비 내역을 분석하였다. 주요 항목을 도출함에 있어서는 보수적인 방식으로서 불필요한 항목만을 최소한으로 삭제하는 배제방식과 각 항목의 계획 반영률이 일정 수준 이상이면서 공사내역이 있는 항목만을 가려내는 선택방식 등 두 가지 방식으로 접근하였다. 그 결과 현재의 147개 항목 중 118개와 73개 항목이 배제방식과 선택방식을 통해 각각 주요 항목으로 정리되었다. 장기수선계획 수립을 위한 법적기준은 실제 적용되는 공법과 재료의 현황을 주기적으로 반영하는 것이 필요하다는 점에서 본 연구의 결과는 기준의 실용성 제고에 기여할 것으로 기대된다.

• Clinics in Shoulder and Elbow
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• 제20권4호
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• pp.201-207
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• 2017

Background: The blunted tip of a reusable with multiple uses can cause problems with the passing procedure in arthroscopic Bankart repair. This study assessed the advantage of Scorpion with a $70^{\circ}$ arthroscope in arthroscopic Bankart repair compared to hook typed suture passer. Methods: Scorpion in 19 patients, the hook type suture passer (conventional group) in 18 patients were used. All patients underwent the same procedure except for the type of suture passer used. Another different point of the procedure were telescopes and the number of portals used; three arthroscopic portals (posterior, anterorsuperiorlateral, and mid-anterior) and a $30^{\circ}$ arthroscope in the conventional group, but two portals and a $70^{\circ}$ arthroscope as well as the $30^{\circ}$ one in the Scorpion group. The surgery time and the surgical complications including an iatrogenic axillary nerve injury were recorded. Results: The Scorpion group showed a significant decrease in surgery time compared to the conventional group. In contrast to the conventional group, Scorpion provided an easy estimation of the exit of suture passing, no iatrogenic labral injury during the passing procedure with straight movement and the sharp tip of the knife installed. Iatrogenic supraspinatus injuries could be avoided when making an accessory anteosuperiorlateral portal due to the $70^{\circ}$ arthroscope. Conclusions: In arthroscopic Bankart repair, the use of the Scorpion suture passer and a $70^{\circ}$ arthroscope can reduce the surgery time, avoid unnecessary supraspinatus injury, and avoid iatrogenic axillary nerve damage through the relatively easy and precise suture passing and saving of the anterosuperior portal.

• 대한건축학회논문집:계획계
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• 제34권10호
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• pp.25-32
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• 2018

The ending of the warranty under the current Multi-Housing Management Act has a lot of problem as it is very disadvantageous to the business entity and it makes hard for the contractor to finish the repair work. It is almost none for the business entity to get the written confirmation of the expiration of warranty liability from the client even though it sincerely completed their warranty obligation. It is because the client asks for the works other than fair repair arising from the defect in the work, such as the upgrade work for the enhancement of the value of their assets and the repair work which the client should take care before it issues the written confirmation of the expiration of warranty liability to the contractor. "So, though there is the law specifying this matter, the parties are relying on the unnecessary civil agreement. This leads to the big social and economic losses. If there is no agreement made between the client and the contractor, that leads to the legal dispute. This research on cases of 10 apartments shows that the types of works which the apartment residents ask for depend on the characteristics and conditions of the apartments and that they ask for various kinds of compensational works. In addition, it was found that there were many cases in which even the civil agreement is not recognized as the ending of the warranty obligation even if the proper procedure is taken for the ending of warranty by the contractor or business entity. If the collateral is to be offered to the client, the contractor would get more hard because there is the additional cost other than the warranty obligation, thus damaging the legal objective of the laws trying to minimize the damage made to the resident of the apartments. It means that the increase in the unnecessary warranty cost would lead to the increase in the selling price of apartment and the ending of the dispute through the civil procedure would make the Multi-Housing Act ineffective.

• 전기전자학회논문지
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• 제11권4호
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• pp.178-186
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• 2007

최근들어 신속히 네트워크를 구성할 수 있는 MANET 환경하에서 MANET 단말기 이용자가 언제, 어디서나 유선 기반망에 접속하여 원하는 정보를 제공 받을 수 있는 유비쿼터스 네트워크의 중요성이 부각되고 있다. 제안한 알고리즘은 자치분산네트워크인 MANET과 유선 인터넷 기간망과의 연결을 위해 필요한 효율적인 게이트웨이 설정방식을 제안한 GMAHN환경에서 경로상에 에러가 발생하였을 경우 경로 재설정시 생성되는 불필요한 네트워크 부하를 사전에 방지하여 네트워크 부하를 최소화 하며 효율적인 데이터 전송을 위해 지역복구 기법을 적용한 알고리즘에 관한 연구이다.

• 대한두개안면성형외과학회지
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• 제12권2호
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• pp.75-80
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• 2011

Deformities related with cleft lip are not only limited to the cleft site but also extended to all around the nasolabial region. Facial development is composed of several complex processes as the formation, migration, coalescence and interaction of separate fields. When there is a cleft event, it means there are general problems of those processes. As a result facial elements should have displacement, deformation and functional hypotrophy. These also affect the mucocutaneous structures, which result in the typical deformities of cleft lip. Traditional surgical methods are not sufficient of the correction of functional impairments in the cleft lip. Accordingly, there are relatively high possibilities of occurring secondary deformities. The Delaire's method focuses on repair of functional impairment of the cleft. Consequently, it can maintain the initial good surgical result and avoid the unnecessary incision scar. And this method can minimize secondary nasal deformities which can reduce the risk of additional nasal correction. Therefore authors introduce this advantageous the Delaire technique cheliolplasty which it can be widely used for the cleft lip correction in Korea.

• Journal of Medicine and Life Science
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• 제16권1호
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• pp.13-16
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• 2019

In a patient with blunt abdominal trauma with small bowel injury, early diagnosis is clinically challenging due to unclear clinical symptoms and signs in the early stage of an injury. On the other hand, a delay of diagnosis of bowel disruption may lead to increased complication and mortality. The diagnostic laparoscopy is very useful for the evaluation of the small bowel injury. Laparoscopy can reduce unnecessary open surgery in a patient with blunt abdominal trauma with subtle symptoms and imprecise findings on abdominal computed tomography. Also it can prevent delay of treatment and be converted immediately to open surgery as soon as bowel damage is revealed. Furthermore, extracorporeal repair of small bowel via mini-laparotomy after a single incision diagnostic laparoscopy in a patient with traumatic small bowel perforation was a feasible and safe alternative to conventional laparoscopy. We are pleased to introduce successfully treated cases by extracorporeal repair of small bowel via mini-laparotomy after a single incision diagnostic laparoscopy in a patient with small bowel perforation after blunt trauma.