• 한국전산유체공학회지
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• 제13권4호
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• pp.86-95
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• 2008

For analyses of multi-phase flows in a water-cooled nuclear power plant, a three-dimensional SIMPLE-algorithm based hydrodynamic solver CUPID-S has been developed. As governing equations, it adopts a two-fluid three-field model for the two-phase flows. The three fields represent a continuous liquid, a dispersed droplets, and a vapour field. The governing equations are discretized by a finite volume method on an unstructured grid to handle the geometrical complexity of the nuclear reactors. The phasic momentum equations are coupled and solved with a sparse block Gauss-Seidel matrix solver to increase a numerical stability. The pressure correction equation derived by summing the phasic volume fraction equations is applied on the unstructured mesh in the context of a cell-centered co-located scheme. This paper presents the numerical method and the preliminary results of the calculations.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제34권3호
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• pp.200-204
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• 2012

In the repair of unilateral complete cleft lip, the most popular method is the rotation-advancement by Millard. Despite advantages of Millard repair, a few pitfalls exist. Above all, some of the scars, at the height of the cleft side philtral ridge, cross the Langer's line. Further, in the repair of complete cleft lip, small triangular lateral lip flap is often added in the base of an advancement flap to level the Cupid's bow. Moreover, preservation of the advancement flap has some negative effects on a primary nasal repair. As a result, the shape of philtrum is somewhat unnatural. Therefore, I applied the extended Mohler repair in the six cases of complete wide cleft lip to get a more esthetic scar. As a result, more natural, straight philtral ridge was obtained, without adding small triangular flap in the base of the advancement flap.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제33권2호
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• pp.154-157
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• 2011

The primary purpose of cleft lip surgery should be the aesthetic and functional recovery of the facial components. Triangular flap repair is one of the most common techniques used in cleft lip surgery. In this case report, thirty patients with unilateral cleft lip had been treated using the Tennison-Randall method. The results were favorable and there have been no permanent complications.

• 시스템엔지니어링학술지
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• 제5권2호
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• pp.1-9
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• 2009

This paper proposes an effective method on the DFILS(Design for Integrated Logistics Support) in ammunition development applying QFD(Quality Function Deployment) method. The goal of this research is to define the Design for ILS approach at the start of the ammunition development and to yield a set of reusable requirements. Based on 000mm High-Explosive(Warship ammunition) development work, a QFD software tool, CUPID, was used to analyze and define the field force's requirements. Additionally, a set of reusable requirements are identified and defined for use during the Design for ILS development phase in the next-generation ammunition development process. These set of requirements that consider both the priority and importance of the VOC(Voice of Customer) will contribute to the early phase of the ammunition development to implement the Design for ILS specialty engineering effort.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2008년도 학술대회
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• pp.71-78
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• 2008

For analyses of multi-phase flows in a water-cooled nuclear power plant, a three-dimensional SIMPLE-algorithm based hydrodynamic solver CUPID-S has been developed. As governing equations, it adopts a two-fluid three-field model for the two-phase flows. The three fields represent a continuous liquid, a dispersed droplets, and a vapour field. The governing equations are discretized by a finite volume method on an unstructured grid to handle the geometrical complexity of the nuclear reactors. The phasic momentum equations are coupled and solved with a sparse block Gauss-Seidel matrix solver to increase a numerical stability. The pressure correction equation derived by summing the phasic volume fraction equations is applied on the unstructured mesh in the context of a cell-centered co-located scheme. This paper presents the numerical method and the preliminary results of the calculations.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2008년 추계학술대회논문집
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• pp.71-78
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• 2008

For analyses of multi-phase flows in a water-cooled nuclear power plant, a three-dimensional SIMPLE-algorithm based hydrodynamic solver CUPID-S has been developed. As governing equations, it adopts a two-fluid three-field model for the two-phase flows. The three fields represent a continuous liquid, a dispersed droplets, and a vapour field. The governing equations are discretized by a finite volume method on an unstructured grid to handle the geometrical complexity of the nuclear reactors. The phasic momentum equations are coupled and solved with a sparse block Gauss-Seidel matrix solver to increase a numerical stability. The pressure correction equation derived by summing the phasic volume fraction equations is applied on the unstructured mesh in the context of a cell-centered co-located scheme. This paper presents the numerical method and the preliminary results of the calculations.

• 한국전산유체공학회지
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• 제18권2호
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• pp.99-108
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• 2013

The standard drag force and virtual mass force, which exert to the primary flow direction, are generally considered in two-phase analysis computational codes. In this paper, the lift force, wall lubrication force, and turbulent dispersion force including turbulence models, which are essential for a computational multi-fluid dynamics model and play an important role in motion perpendicular to the primary flow direction, were introduced and verified with conceptual problems.

• 대한구순구개열학회지
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• 제11권2호
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• pp.77-82
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• 2008

The harmonious lip length, residual scar and Cupid's bow width and peak with a normal side are the aims of a unilateral cleft lip repair. Also, long term amelioration without necessary of revisional surgeries may be the ideal conditions. No one method can satisfy the wide varieties of cleft lip deformities. Recently with rearrangement of paraoral muscle and some modifications, a straight line repair technique has been concerned again. Straight scar line, simplicity, and short learning curve are the advantages of the straight line technique. Here two cases of the simple straight line technique were presented and discussed for its usefulness and reliability with short reviews of previous reports.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제28권4호
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• pp.348-355
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• 2006

우리는 3예의 편측성 불완전 구순열 환아에서 Bardach 삼각피판법을 사용하여 구순열을 수복하였다. Millard법에 비해 비주기저부와 비익기저부에 부가적인 절개를 가하지 않으므로 술후 반흔을 줄일 수 있었다. 또한 Tennison-Randall법에 비해 간단하면서도 정교한 계측에 의한 작도가 가능하였다. 한편 삼각피판법의 단점으로 지적되고 있는 인중 부위의 술후 반흔은 3예 모두 불완전 구순열이었기 때문에 삼각피판의 길이가 짧아 심미적으로 허용할 만하였다. Bardach 삼각피판법은 편측성 불완전 구순열의 수복에 추천할 만한 술식임을 경험하였다.

• Archives of Plastic Surgery
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• 제32권2호
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• pp.155-160
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• 2005

The aim of this study is to establish anatomical dimension of the lip in young population in Korean, using specially designed soft ware with photographic image. We measure 13 anatomical dimensions of lips in 2,229 young people. (917 male, 1312 female, Aged from 18-33 years. Average age 19.7). Statistical analysis of these measurements of large population could offer useful information in facial plastic surgery. The mean measurements are as follows 1. Lengths (male/female) Widths of philtrum: $1.11{\pm}0.19cm/1.02{\pm}0.21cm$ Heights of philtrum: $1.6{\pm}0.24cm/1.47{\pm}0.21cm$ Heights of cupid bow: $0.88{\pm}0.16cm/0.83{\pm}0.16cm$ Height of upper vermilion: $0.74{\pm}0.16cm/0.70{\pm}0.15cm$ Height of lower vermilion: $1.08{\pm}0.17cm/1.02{\pm}0.15cm$ Height of upper lip(Rt.): $1.24{\pm}0.2cm/1.23{\pm}0.2cm$ Height of upper lip(Lt.): $1.24{\pm}0.2cm/1.17{\pm}0.19cm$ Half horizontal length of lip: $2.2{\pm}0.26cm/2.11{\pm}0.2cm$ Horizontal length of lip: $4.41{\pm}0.4cm/4.25{\pm}0.36cm$ Height of lower face: $7.1{\pm}0.58cm/6.52{\pm}0.6cm$ 2. Angles Nasolabial angle: $97.77{\pm}11.97^{\circ}/95.5{\pm}11.34^{\circ}$ Mentolabial angle: $133.88{\pm}14.65^{\circ}/129.27{\pm}13.67^{\circ}$ Angle of Cupid's bow: $111.65{\pm}13.99^{\circ}/116.75{\pm}16.2^{\circ}$ Previous reported photogrammetric measurements was difficult to implement to surgical practice. Because these were printed photographies of the same size. Therefore, in this study, we can measure a lot of objects and items more conveniently and correctly by using proportional program on computer after taking a digital photograph. Consequently, proportional measurements with photogrammetry of lip could be useful and corrective substitute for anthropometrical measuring. These data could be useful reference for preoperative consultation, surgical planning and learning anatomical measurement of lips and adjacent structures.