• Proceedings of the IEEK Conference
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• 2007.07a
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• pp.317-318
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• 2007

In this paper, we propose an efficient timing closure methodology during physical implementation. Many types of slacks and closure solutions were introduced case-by-case. The major part of violations was managed by specified tools, but the exceptionally generated minor violation which was occurred through correlation error between tools was manually corrected by ASIC engineer. From the proposed method, we identified that the best effective method is to decrease the sum of intrinsic delay in case of setup time violation.

• Transactions of the Korean Society of Mechanical Engineers
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• v.12 no.6
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• pp.1343-1349
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• 1988

In this study, it is investigated for the effects of stress ratio and grain size on fatigue crack growth behavior and crack closure, in ferrite-martensite dual phase steels. The results obtained are as follows ; .DELTA. $K_{th}$ is independent of the ferrite grain size, but decreases with increasing stress ratio. The relation between .DELTA. $K_{th}$ and stress ratio R is as follows : .DELTA. $K_{th}$ =15.1(1-0.95R). But (.DELTA. $K_{eff}$)$_{th}$ in terms of crack closure is approximately 2.5 MPa.root.m. Also, variation of the degree of crack deflection to crack tip opening displacement at the minimum load is considered as a parameter of crack closure.e.e.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.33 no.5
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• pp.12-20
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• 2001

The consequence of water system closure and reduced water consumption in Paper Mills is increased white-water conductivity associated with increased total dissolved solids. This leads to difficulties man-aging the wet end chemistry of paper machines, mainly due to stearic hindrance effects on wet end chemical additives. This in turn causes poor productivity and Inefficient chemicals usage. The success of a number of projects is reported. The application and development of new multi-component micro-particle systems which can further assist in achieving a significant degree of system closure or Zero Effluent is described.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2008.05a
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• pp.57-60
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• 2008

The studies for internal void closure have been conducted experimentally and numerically for open die forging. The FEM analysis is performed to investigate the deformation behavior of some internal voids in cast ingots during two upsetting stages. The calculated results of void closure behavior are compared with the measured results before and after upsetting. The shapes and sizes of each internal void are scanned by the X-ray scanner. From this result, the criteria for deformation amounts effect on the void closure can be investigated by the types of void. Closed voids could be compressed and eliminated after forging when the applied deformation amounts were larger than the critical effective strains. On the other hand, open voids could not be compressed and removed.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2008.05a
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• pp.75-78
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• 2008

The predictive equation of void-closure was developed to evaluate void crush ratio with respect to the process variables in the cogging process of a large round bar. The comprehensive finite element analysis with the process variables such as reduction ratio and die width ratio was carried out. The predictive equation of void-closure for cogging process was established on the basis of the regression analysis with the extensive FE analysis results and verified by comparing the predicted results with FEA results with various forging passes.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.22 no.6
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• pp.588-593
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• 2019

This study aimed to report three new cases of an association between two rare conditions, congenital portosystemic shunts (CPSS) and trimethylaminuria (TMAU), and the efficacy of endovascular closure of the CPSS for resolving TMAU. Between November 2014 and April 2017, 15 patients with CPSS were enrolled in this prospective study to assess the efficacy of percutaneous endovascular shunt closure. Three patients presented with clinical symptoms of TMAU that were confirmed by urine analysis of trimethylamine (TMA) and TMA n-oxide. One year after endovascular closure of the congenital portosystemic shunt, the same parameters were evaluated were obtained and the values were compared to the pretreatment values. The results indicated the disappearance of clinical symptoms of TMAU and normalization of the urine test parameters in two patients and no changes in one patient, who developed new portosystemic communications.

• Archives of Plastic Surgery
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• v.48 no.1
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• pp.75-79
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• 2021

Bardach described a closure of the cleft utilizing the arch of the palate, which provides the length needed for closure and is most effective only in narrow clefts. Herein, we describe a case where we utilized Bardach's two-flap technique with a vital and easy modification, done to allow closure of a wide cleft palate and to prevent oronasal fistula formation at the junction of the hard and soft palate, which are otherwise difficult to manage with conventional flaps. The closed palate showed healthy healing, palatal lengthening, and no oronasal regurgitation. We advise using this modification to achieve the goals of palatal repair in difficult cases where tension-free closure would otherwise be achieved with more complex flap surgical techniques, such as free microvascular tissue transfer.

• Journal of Audiology & Otology
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• v.25 no.4
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• pp.224-229
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• 2021

Background and Objectives: The United Kingdom (UK) national standard for the closure rate for myringoplasty is 89.5% (90.6% and 84.2% for primary and revision surgeries, respectively). The average hearing gains for primary and revision myringoplasty are 9.14 dB and 7.86 dB, respectively. This study compared the myringoplasty outcomes for a single surgeon over 5 years. Subjects and Methods: Data for 68 cases were analyzed retrospectively. The outcome measures were achievement of the tympanic membrane closure and the average hearing gain or loss. Results: The overall and primary closure rates were 97% and 98%, respectively and significantly higher than the UK national standard (p=0.0210 and p=0.0287, respectively). The revision closure rate was 93%; however, it was not significantly higher than the national standard (p=0.1872). The average hearing gain was 5.18 dB. The gains for primary and revision surgeries were 5.15 dB and 5.25 dB, respectively. Conclusions: We propose that these outcomes are a result of our surgical technique, including the simultaneous use of cortical mastoidectomy in ears with discharge.

• Korean Journal of Audiology
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• v.25 no.4
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• pp.224-229
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• 2021

Background and Objectives: The United Kingdom (UK) national standard for the closure rate for myringoplasty is 89.5% (90.6% and 84.2% for primary and revision surgeries, respectively). The average hearing gains for primary and revision myringoplasty are 9.14 dB and 7.86 dB, respectively. This study compared the myringoplasty outcomes for a single surgeon over 5 years. Subjects and Methods: Data for 68 cases were analyzed retrospectively. The outcome measures were achievement of the tympanic membrane closure and the average hearing gain or loss. Results: The overall and primary closure rates were 97% and 98%, respectively and significantly higher than the UK national standard (p=0.0210 and p=0.0287, respectively). The revision closure rate was 93%; however, it was not significantly higher than the national standard (p=0.1872). The average hearing gain was 5.18 dB. The gains for primary and revision surgeries were 5.15 dB and 5.25 dB, respectively. Conclusions: We propose that these outcomes are a result of our surgical technique, including the simultaneous use of cortical mastoidectomy in ears with discharge.

• Korean Journal of Construction Engineering and Management
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• v.21 no.2
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• pp.70-78
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• 2020

Construction program management requires more systematic management than traditional management methods due to the complexity of the project and various stakeholders. In particular, the systematization of closure phase of the process is in urgent need as there is a difference between the owner's expectations and the contractor's deliverables, resulting in delayed handovers, conflicts, frictions, and increased legal disputes. This study identified the process and activities of closure phase through domestic and international literature and case studies for the successful closure of the construction program. Further, the proposed processes and activities were verified through expert verification for appropriateness and the possibility of application to the site. By utilizing the processes and activities proposed in this study, the project aims to overcome the limits of closure phase and improve the satisfaction of the owner, as well as to enhance the global competitiveness of domestic construction companies.