• Title/Summary/Keyword: Partial Repair

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A Study on Vehicle Crash Characteristics with RCAR Crash Test in Compliance with the New Test Condition (동일 승용차량에 대한 RCAR 신.구 충돌시험을 통한 차체 충돌특성에 관한 연구)

  • Lim, Jong-Hun;Park, In-Song;Heo, Seung-Jin
    • Transactions of the Korean Society of Automotive Engineers
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    • v.14 no.6
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    • pp.190-194
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    • 2006
  • This research investigates vehicle structure acceleration and vehicle deformation with RCAR crash test. To investigate vehicle damage characteristics in an individual case, it is possible to RCAR low speed crash test. In this study, two tests were conducted to evaluate difference between RCAR new condition and RCAR old condition. A two large vehicles were subjected to a frontal crash test at a speed of 15km/h with an offset of 40% $10^{\circ}$ angle barrier and flat barrier. The results of the 15km/h with an offset of 40% $10^{\circ}$ angle barrier revealed high acceleration value on the vehicle structure and high repair cost compared to the RCAR 15km/h with an offset of 40% flat barrier. So in order to improve damage characteristics in low speed crash of vehicle structure and body component of the monocoque type passenger vehicles, the end of front side member and front back beam should be designed with optimum level and to supply the end of front side member as a partial condition approx 300mm.

Characterization of Excision Repair Genes Related to Damaged DNA Repair from Eukaryotic Cells

  • Choi, In-Soon;Jin, Yong-Hwan;Park, Sang-Dai
    • Environmental Mutagens and Carcinogens
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    • v.17 no.1
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    • pp.1-6
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    • 1997
  • The RAD4 gene of Saccharomyces cerevisiae is essential for the incision step of UV-induced excision repair. A yeast RAD4 gene has been previously isolated by functional complementation. In order to identify the RAD4 homologous gene from fungus Coprinus cinereus, we have constructed cosmid libraries from electrophoretically separated chromosomes of the C. cinereus. The 13 C. cinereus chromosomes were resolved by pulse-field gel electrophoresis, hybridized with S. cerevisiae RAD4 DNA, and then isolated homologous C. cinereus chromosome. The insert DNA of the RAD4 homolog was contained 3.2 kb. Here, we report the partial cloning and characterization of fungus C. cinereus homolog of yeast RAD4 gene. Southern blot analysis confirmed that C. cinereus contains the sequence homologous DNA to RAD4 gene and this gene exists as a single copy in C. cinereus genome. When total RNA isolated from C. cinereus cells was hybridized with the 1.2 kb PvuII DNA fragment of the S. cerevisiae RAD4 gene, a 2.5 kb of transcript was detected. The level of the transcript did not increase upon UV-irradiation, suggesting that the RAD4 homologous gene in C. cinereus is not UV-inducible.

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IR-RBT Codes: A New Scheme of Regenerating Codes for Tolerating Node and Intra-node Failures in Distributed Storage Systems

  • Bian, Jianchao;Luo, Shoushan;Li, Wei;Zha, Yaxing;Yang, Yixian
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.10
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    • pp.5058-5077
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    • 2019
  • Traditional regenerating codes are designed to tolerate node failures with optimal bandwidth overhead. However, there are many types of partial failures inside the node, such as latent sector failures. Recently, proposed regenerating codes can also repair intra-node failures with node-level redundancy but incur significant bandwidth and I/O overhead. In this paper, we construct a new scheme of regenerating codes, called IR-RBT codes, which employs intra-node redundancy to tolerate intra-node failures and serve as the help data for other nodes during the repair operation. We propose 2 algorithms for assigning the intra-node redundancy and RBT-Helpers according to the failure probability of each node, which can flexibly adjust the helping relationship between nodes to address changes in the actual situation. We demonstrate that the IR-RBT codes improve the bandwidth and I/O efficiency during intra-node failure repair over traditional regenerating codes but sacrifice the storage efficiency.

Pseudoaneurysm Involving Proximal Ascending Aorta and Proximal Descending Thoracic Aorta (상행 대동맥과 하행 흉부 대동맥에 동시에 발생한 가성 대동맥류 치험 1례)

  • 이호철;류한영
    • Journal of Chest Surgery
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    • v.29 no.3
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    • pp.337-341
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    • 1996
  • A 40-year-old male patient who had ascending aortic pseudoaneurysm Involving right coronary artery obstruction and thoracic descending aortic pseudoaneurysm was successfully managed by two-stage operation. Repair of intimal tear of ascending aortic pseudoaneurysm with a patch of woven dacron vascular graft and right coronary artery bypass graft with great saphenous vein were performed in first stage operation. On 28 days postoperatively, Repair of intimal tear of descending aortic pseudoaneurysm with a patch of woven dacron vascular graft was done under the femorofemoral partial cardiopulri!onary bypass in second stage operation. The patient was discharged at postoperative 13th days without any evident.

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Maintenance care for removable denture (가철성 의치의 유지관리)

  • Cho, Lee-Ra
    • The Journal of the Korean dental association
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    • v.54 no.12
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    • pp.996-1023
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    • 2016
  • There are many kinds of maintenance care services for removable denture patient. Adjustment of the denture base and occlusion should be performed regularly not only for pain relief but also for maintaining the denture function. Direct and indirect relining are needed frequently in specific cases including mandibular distal extension case or non-symmetric residual teeth situation. Surface treatments for metal and resin are essential in the relining procedure. Clinical process for the denture repair is similar to indirect relining which needs inter-occlusal registration. Especially, the peridontal maintenance care and caries prevention are most important way to preserve the abutment teeth in partial edentulism. Moreover, the caring method for the denture and the tissue should be instructed to the denture patient.

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Partial Tear of Upper Portion of Subscapularis (견갑하근 상 1/3 파열)

  • Kim Dong-Hui;Kim Kug-Jin;Moon Young-Lae
    • Clinics in Shoulder and Elbow
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    • v.8 no.1
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    • pp.9-13
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    • 2005
  • An isolated tear of the subscapularis is uncommon, and there are a few literatures regarding the treatment of this problem. But, the incidence has increased with development of the arthroscopic techniques. An all-arthroscopic rotator cuff repair is a challenging procedure that can be effectively performed for treatment of subscapularis tendon tears. Often, tears of the subscapularis tendon do not involve entire tendon, and retraction of the torn edge is within to 2 cm of its attachment site. Occasionally, the entire tendon is torn and retracted medially to the glenoid. This article outlines the examination, preoperative planning and details the steps necessary to perform this procedure on upper third of subscapularis tears.

Assessment of Insulation Condition between Diagnosis and Impregnation for Hydro-Generator (수력발전기의 절연보강 전${\cdot}$후 절연상태 비교평가)

  • Byun il-hwan;Lee Eun-Woong
    • Proceedings of the KIEE Conference
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    • summer
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    • pp.1124-1126
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    • 2004
  • The measurements were performed to assess the insulation deterioration condition of the stator winding of Dae-Cheong hydro-generator ${\sharp}2$ which had been in service after being constructed 1980. After repair of the stator winding insulation. we conducted insulation diagnostic tests which include resistance, polarization index(P. I). AC current, dissipation factor($Tan{\delta}$) and partial discharges ($Q_{max}$). The results of diagnostic tests were compared to the previous records. On the basis of these test results. this paper tried to present the importance of insulation repair for the generator stator winding.

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Assessment of Insulation Condition between Diagnosis and Impregnation for Hydro-Generator (대용량 수차발전기의 절연진단과 절연보수 상관관계 평가)

  • Oh, Bong-Keun;Jung, Jin-Dal;Lee, Kwang-Ho;Kim, Hyun-Il;Kwak, Hee-Jin
    • Proceedings of the KIEE Conference
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    • 2004.05b
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    • pp.39-41
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    • 2004
  • The measurements were performed to assess the insulation deterioration condition of the stator winding of Dae-Cheong hydro-generator #2 which had been in service after being constructed 1980. After repair of the stator winding insulation, we conducted insulation diagnostic tests which include resistance, polarization index(P.I), AC current, dissipation factor($Tan\delta$) and partial discharges ($Q_{max}$). The results of diagnostic tests were compared to the previous records. On the basis of these test results, this paper tried to present the importance of insulation repair for the generator stator winding.

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Hemisection and Endodontic Treatment of First Molar Tooth and Mandibular Fracture Repair in a Dog

  • Kim, Gyu-min;Kim, Jury;Bae, Hyeon-a;Kim, Nam-soo;Ji, Dong-Beom
    • Journal of Veterinary Clinics
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    • v.36 no.2
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    • pp.106-108
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    • 2019
  • This clinical report describes hemisection and endodontic treatment of first molar tooth and mandible fracture repair in a dog. A 10 years old spayed female shih-tzu was diagnosed as left mandibular fracture by oral examination and dental radiography. First, partial odontectomy of mesial root of mandibular first molar placed in fracture line was performed, and then endodontic treatment of distal root and bone graft in extraction site was performed. Thereafter the fracture region was fixed with interdental wiring and acryl resin splint. Mandibular fracture site was healed without any complications, observed for 19 weeks follow-up period. Upon this result, this case is proving that fractured mandible can be treated successfully with hemisection followed by bone graft, interdental wiring and acryl resin splint to preserve the remaining tooth for mastication rather than tooth extraction.

Fabrication of surveyed crown and repairing the artificial teeth for existing removable partial denture using digital technology: a case report (디지털 방식을 이용한 기존 국소의치 맞춤 보철 제작과 심미적인 인공치 수리 증례)

  • Ina Kim;Eunji Oh;Sang-Won Park;Hyun-Pil Lim;Kwi-dug Yun;Chan Park
    • Journal of Dental Rehabilitation and Applied Science
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    • v.40 no.2
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    • pp.82-90
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    • 2024
  • It often happens that a removable partial denture needs to be repaired due to tissue changes in the remaining alveolar ridge, fracture of the denture, or fracture of the abutment tooth. There are several advantages to retrofitting a customized surveyed crown under the existing RPD. Retrofitting a crown to the RPD decreases the economic burden to the patient and avoids the need for several appointments to fabricate a new RPD. It is difficult for artificial teeth used to repair dentures due to fractured natural teeth to have a shape similar to that of natural teeth, and to repair aesthetic artificial teeth, it is necessary to manufacture customized artificial teeth similar to the shape of each patient's teeth. Recently, CAD/CAM technology has been used to fabricate customized prosthetics on existing RPD to achieve high retention and fitness accuracy, and by manufacturing customized artificial teeth, more aesthetic and harmonious artificial tooth repair is possible. This is a case in which a denture was repaired using a digital method to fabricate a customized prosthesis on an existing partial denture and customized artificial teeth that mirrored the adjacent dentition, saving time and cost, simplifying the process, and achieving aesthetically and functionally satisfactory results.