• Clinics in Shoulder and Elbow
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• 제15권1호
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• pp.1-7
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• 2012

목적: 사각근간 상완 신경총 차단 하 회전근 개 복원술 후 다중 통증 조절법을 통한 초기통증 조절의 유용성을 확인해 보고자 하였다. 대상 및 방법: 회전근 개 전층 파열로 관절경 하 회전근 개 복원술을 시행한 80명의 환자들을 대상으로 하였다. 전례에서 술 전 마취로 사각근간 상완 신경총 차단을 시행하였고 수술 후 견봉하 공간에 Bupivacaine 유치 도관을 통한 일회성 통증 조절만 시행한 A군 (Group A : Local analgesia group)과 유치 도관 주사에 추가하여 경구 약물로 아편양 제재, 아세트아미노펜-트라마돌 복합제, 선택적 COX2 억제제를 사용하는 다중 통증 조절법을 시행한 B군 (Group B : Multimodal control group)으로 나누어 비교하였다. 수술 당일 야간, 술 후 1, 2, 3일 및 술 후 2주의 주간과 야간의 통증 점수 (visual analogue scale, VAS), 입원 중 추가 투여한 ketolorac 주사의 횟수와 약물과 관련된 부작용에 대해 비교, 분석을 하였다. 결과: 수술 당일 야간, 술 후 1, 2, 3일, 술 후 2주의 주간 및 야간의 평균 VAS는 A군에서 각각 7.4점, 7점/6.8점 (주/야), 4.5점/5.2점, 4.8점/5.0점, 2.2점/2.7점 이었으며 B군에서 각각 6.5점, 4.3점/5.4점, 3.2점/4.3점, 3.0점/4.1점, 2.4점/2.5점으로 수술 당일 야간과 수술 후 1,2,3일의 주간통 및 술 후1일의 야간통에서 각각 유의한 감소를 보였다 (p<0.05). A군과 B군의 하루 당 평균 ketolorac 투여 횟수는 각각1.1회, 0.5회였고 부작용의 차이는 없었다. 결론: 관절경적 회전근 개 복원술 후 다중 통증 조절법을 통한 초기 통증 조절은 효과적인 진통조절을 보여 환자의 만족도를 높일 수 있는 방법으로 생각되었다.

• 한국농촌건축학회논문집
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• 제13권1호
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• pp.37-44
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• 2011

The maintenance works for brick-structured buildings are a new field in Korea, and practical cases are yet inadequate so that such works may cause adverse effects of damaging the buildings after all. Therefore, this study has extracted a preservation technology believed to be most desirable in minimizing the damage to the original state of the buildings and preserving the value as the cultural assets through maintenance work details from 1986 to 2010 regarding brick-structured buildings designated as cultural properties. Firstly, a brick replacement method of using the brick used at the time of construction is efficient in replacement and repair of brick material for preserving value of cultural assets and minimizing damage of the original form. Secondly, use of lime mortar through material analysis is effective in repair of masonry joint and mortar but it is not used often due to high experimental cost. Finally, reinforcement of structure using a form for a building with severe damage is most efficient when considering additional problems. However, damage on the original form of a building can be minimized and value of a building can be preserved only when consideration on sufficient case analysis, materials to be used, and conditions of a building is supported.

• Steel and Composite Structures
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• 제37권4호
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• pp.419-429
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• 2020

Composite structures are generally pressurized at both sides when repaired by the scarf repair method. But single-face vacuum bag curing (SVC) may be used in some practical scarf repair of penetration damage due to the low accessibility of composite structures, which can decrease bonding quality and may reduce structural mechanical properties. In this paper, experimental investigations were conducted on tensile and compressive properties of scarf-repaired composite laminates using SVC and double-face vacuum bag curing (DVC) in four hygrothermal environments. Finite element models of composite scarf joints with voids were established to further explore the failure mechanism of scarf-repaired laminates. Results show that the curing condition hardly affects tensile and compressive properties of the repaired laminates though it significantly affects the bonding quality with adhesive inner voids. Failure loads of scarf joints almost keep unchanged with adhesive voids increasing.

• Asian Pacific Journal of Cancer Prevention
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• 제13권2호
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• pp.665-669
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• 2012

Aim: The distribution of DNA repair gene XRCC1 and XRCC3 genotypes was used to assess the potential influence of genetic polymorphisms on risk of colorectal cancer, and interactions with other factors. Methods: a 1:2 matched case-control study was conducted with 485 cases and 970 controls. XRCC1 and XRCC2 genotype polymorphisms were based upon duplex polymerase-chain-reaction with the confronting-two-pairprimer (PCR-CTPP) method. Results:The XRCC1 399Cln allele polymorphism was found to be associated with an increased colorectal cancer risk, while an non-significant inversely association was noted for XRCC3 241Thr/Thr genotype. We also found that individuals with the XRCC1 399 Gln and XRCC3 241Met alleles had an elevated risk, while XRCC3241Thr/Thr was proctective. Conclusion: This study is the first to provide evidence of importance of XRCC1 and XRCC3 gene polymorphisms for risk of colorectal cancer in the Chinese population.

• Asian Pacific Journal of Cancer Prevention
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• 제13권9호
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• pp.4423-4426
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• 2012

Aim: XRCC1 and XPD are two major repair genes involved in nucleotide excision repair (NER), which is reported to be associated with risk of several cancers. We explored the association of XRCC1 and XPD polymorphisms with the risk of HCC. Methods: A total of 410 cases with HCC and 410 health controls were collected. XRCC1 Arg194Trp, XRCC1 Arg399Gln, XPD Lys751Gln and XPD Asp312Asn genotyping was performed by duplex polymerase-chain-reaction with the confronting-two-pair primer (PCR-CTPP) method. Results: XRCC1 194Trp/Trp was strongly significantly associated with an increased risk of HCC cancer when compared with the wide-type genotype (OR=2.26, 95% CI=(1.23-5.38). Individuals carrying the XRCC1 399Gln/Gln showed increased risk of HCC (OR=1.74, 95%CI=1.06-2.74). The XPD 751Gln/Gln and Gln allele genotype were associated with strong elevated susceptibility to HCC (OR=3.51 and 1.42, respectively). Conclusion: These results suggest that polymorphisms in XRCC1 and XPD may have functional significance in risk of HCC.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년도 추계학술발표대회 논문집
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• pp.284-287
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• 2009

This study is aim to analyze out Living Guide Book for residents in Housing and to have application to Long Life Housing as a precedent study based on Maintenance Guideline to make residents inhabitate, in case of suppling Wet type Short Life Housing with S(Support) and I(Infill), and Long Life Housing with devised SI, durability, alterability, available Remodeling and maintenance effect. Housing with large scale complex and brand-name offers Living Guide Book for residents that contains maintenance contents. Maintenance contents for residents in Housing are complex guide, use method of the each part, guide for repair of defect, repair and change of built -in items ended up life or damaged items. Maintenance contents for residents in Long Life Housing are important because the Manager takes charge of public area and public equipment in S, but the user takes charge of private area and private equipment. Therefore this study analyzes out Living Guide Book for residents in Housing as a precedent study based on Maintenance Guideline of Long Life Housing users.

• Journal of Life Science
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• 제11권1호
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• pp.52-56
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• 2001

The present study intends to characterize the DNA damage-inducible responses in eukaryotic cells. The fission yeast, S. pombe, which displays efficient DNA repair systems, was used in this study as a model system for higher eukaryotes. To study UV-inducible responses in S. pombe, five UV-inducible cDNA clones were isolated from S. pombe by using subtration hybridization method. To investigate the expression of isolated genes, the cellular levels of the transcripts of these genes were determined by Northern blot analysis after UV-irradiation. The transcripts of isolated gene (UV130) increased rapidly and reached maximum accumulation after UV-irradiation. Compared to the message levels of control, the levels of maximal increase were approximately 5 fold to UV-irradiation. In order to investigation whether the increase of UV130 transcripts was a specific results of UV-irradiation, UV130 transcript levels were examined after treating the cells to Methylmethane sulfonate (MMS). The transcripts of UV130 were not induced by treatment of 0.25% MMS. These results implied that the effects of damaging agents are complex and different regulatory pathways exist for the induction of these genes. To characterize the structure of UV130 gene, nucleotide sequences were analyzed. The nucleotide sequence of 1,340 nucleotide excluding poly(A) tail contains one open reading frame, which encodes a protein of 270 amino acids. The predicted amino acid sequences of UV130 do not exhibit any significant similarity to ther known sequences in the database.

• Journal of Chest Surgery
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• 제15권2호
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• pp.139-147
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• 1982

In case of segmental injury of trachea, the primary repair is very difficult, because the trachea is fixed in place without movability from the surrounding tissue. In addition to special anatomical situation of trachea, any ideal artificial prosthesis for tracheal replacement is not still appeared. Many authors proposed several procedures for the tracheal repair, but satisfactory results were few. Among the proposed procedures end to end anastomosis of trachea was noted superior when both ends of trachea could be approximated by mobilization of upper and lower injured trachea. The author's experiment was designed to determine the effect about decreased tension on trachea when the hyoid bone was released downward from the surrounding muscular structures. The experimental dogs were divided into two groups, suprahyoid releasing group (SH R) and control group of intact hyoid. SH R group was subdivided into two groups accord ing to he degree of tension. The experimental results were as follow; 1. SH R group: In view of X-ray, the distance between the angle of mandible and the displaced hyoid bone was lengthened downward. And it's range was from 1.3cm (38%) minimally to 2.7cm(108%) maximally. 2. Control group: The distance between the angle of mandible and hyoid was same in both pre and postoperation. As the result of this experiment study, the suprahyoid release technique seems to be the efficient method that enable of release the trachea maximally. And it should be expected that the SH R technique is applicable clinically.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2001년도 가을 학술발표회 논문집
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• pp.491-496
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• 2001

In recent years, the research and development about the new material proceed rapidly and actively in the building industry. As building structures become bigger, higher and more specialized, so does the demand for material with higher strength. In the future, we will need to research repair and rehabilitation to make high strength concrete mixed steel fibrous building safe. The carbon fiber reinforced plastic bonding method is widely used in reinforcing the existing concrete structure among the various methods. The repair of initiate loaded reinforced high-strength concrete beams mixed steel fibrous with epoxy bonded Carbon Fiber Sheets(CFS) was investigated experimentally. The CFS thickness and length were varied to assess the peel failure at the curtailment of CFS, The behaviour of the repaired beams was represented by load-longitudinal steel strain relation and failure modes were discussed. The test results indicate that CFS is very effective for strengthening the demand beams and controlling deflections of reinforced high strength concrete beams mixed steel fibrous happen diagonal crack, the increase in the number of CFS layers over two layers didn't effect the increase in the strength of beams.

• 복합신소재구조학회 논문집
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• 제6권3호
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• pp.41-49
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• 2015

The repair of manhole raise has been caused much construction times and disruption of traffic flow, serious environmental pollution from crushed construction wastes, and budget waste due to the repeated repair construction works. In order to overcome such problems, we have developed the new manhole repairing composite structures by using a glass fiber-reinforced polymer (GFRP) pipe, which can raise manhole to the regular height of the overlayed road pavement with rapid construction and minimum traffic jams. This environmental-friendly technology is method completed by the methyl methacrylate monomer (MMA) double wide flanged GFRP pipe composite structures in order to raise manhole to the regular height. In this paper, two kinds of the compressive strength tests of MMA mortar composites were conducted and evaluated by a general compressive strength test, and compressive strength test after freezing-thawing resistance test. It was found that this MMA mortar composites will be used for the application of the double wide flanged GFRP pipe composite structures.