• 한국전산유체공학회:학술대회논문집
• /
• 1998.11a
• /
• pp.141-146
• /
• 1998

An Euler/Navier Stokes solver has been developed for the analysis of steady and unsteady flows. The $q-{\omega}$ turbulent model has been incorporated into the solver in strongly coupled manner for stability and robustness. A new Chimera hole cutting algorithm, Cut-paste algorithm, has been devised for automatic Chimera hole cutting. Number of viscous/inviscid numerical computations demonstrate the accuracy and the versatility of the solver.

• Proceedings of the Korean Fiber Society Conference
• /
• 1998.10a
• /
• pp.61-65
• /
• 1998

Epoxy resins are currently one of the most widely used thermoset polymers. Applications on epoxy-based materials range from common to structural adhesives as well as to matrix materials for high performance composites. The outstanding versatility of this resin can be related to the reactivity of the epoxy group, which can be opened by a large number of different chemical compounds, such a aliphatic and aromatic amines, anhydrides and poly-amides. (omitted)

• Proceedings of the IEEK Conference
• /
• 2006.06a
• /
• pp.637-638
• /
• 2006

A novel 1.2V class-AB output stage for the SW-OpAmp technique was presented. By using current mirrors and simple current extraction circuits, the proposed circuit boosts DM signal currents while eliminates CM ones to perform class-AB operation. Hspice simulation results verify the versatility of the proposed circuit technique.

• Journal of the Korean Institute of Telematics and Electronics B
• /
• v.30B no.11
• /
• pp.66-73
• /
• 1993

This paper presents an analog circuit implementation and experimental resuls of the Hopfield type neural network. The proposed architecture enables the reconfiguration betwewn feedback and feedforward networks and employs new circuit designs for the weight supply and storage, analog multilier, nd current-voltage converter, in order to achieve area efficiency as well as function al versatility. The layout design of the eight-neuron neural network is tested as an associative memory to verify its applicability to real world.

• Korean Journal of Otorhinolaryngology-Head and Neck Surgery
• /
• v.55 no.9
• /
• pp.546-551
• /
• 2012

The endonasal approach for rhinoplasty is an important surgical technique to manage the majority of the nasal problem that present to the nasal plastic surgeons. Open rhinoplasty offers an excellent visualization and therefore facility of precise correction, but causes a larger area of wound and scarring. This review was designed to describe the versatility of endonasal techniques for rhinoplasty.

• Journal of the Korean Society for Precision Engineering
• /
• v.11 no.1
• /
• pp.157-165
• /
• 1994

A general-purpose program for automatic two-dimensional finite-element modelling with quadrilateral elements was developed in this research. The conventional looping method employed in the program was introduced with emphasis on a new splitting criterion and a splitting scheme developed for improving the method. Some application examples were given, which show versatility and applicability of the developed program.

• Archives of Reconstructive Microsurgery
• /
• v.9 no.2
• /
• pp.147-153
• /
• 2000

Soft tissue defects of the dorsum of foot and ankle can be covered from skin graft to free tissue transfer. The extent of injury which may be complex including the exposure of paratenons or bones requires free flap reconstruction. Some of the precautions for reconstruction are providing minimal bulkiness and well conforming to irregular contour thus making normal footwear possible. Though the muscle flap having its advantages and versatility, the fascial flap such as temporoparietal fascial flap has been considered the choice for reconstruction of the dorsum of foot and ankle. The purpose of our study is to utilize the advantages and versatility of the muscle flap as a first choice for reconstruction for the defects involving the dorsum of foot and ankle. The gracilis muscle with its anatomic and donor characteristics, it can be utilized to maximal effect by expanding its slim muscle width removing the epimysium and reducing its bulk by muscle atrophy through denervation. We present our experience with ten cases of reconstruction for the dorsum of foot and ankle using the gracilis muscle free flap. Results were satisfactory without flap loss, skin loss and infection. The contour and aesthetic aspect of the foot was satisfactory. Gait analysis showed near normal gait without limitations from everyday activities. Normal footwear was tolerable in all the cases. The keys to consider in the reconstruction of the dorsum of foot and ankle are appropriate bulkiness, conforming to its contour and able to apply normal footwear. With minimal donor morbidity and satisfying results, the extended gracilis muscle should be considered as the first line for reconstruction of the ankle and dorsum of foot.

• Journal of Korean Tunnelling and Underground Space Association
• /
• v.18 no.3
• /
• pp.283-290
• /
• 2016

Recent, the construction of the multi-purpose double-deck tunnel is required to solve the flood protection and congested area at urban city. The multi-purpose double-deck tunnel is desperately needed for the introduction of efficient utilization of underground space in addition to the main feature of road capabilities. A basic review was performed for site selection to consider the control capability and features of road tunnel at the same time, and the processable flow in accordance with tunnels cross section of double deck tunnel. Site Selection Criteria for multi-purpose use of the double-deck tunnel has been proposed through the site selection criteria by use of the tunnels review. Also the estimation processable flow was performed to review the versatility of double-deck tunnel due to design of tunnel cross-section. Site Selection of double-deck tunnel from this study can be seen the need for a complex consideration through a variety of analyzes.

• The Korean Journal of Community Living Science
• /
• v.23 no.1
• /
• pp.17-30
• /
• 2012

This study is targeted on children's parks in Seogu, Daejeon with the goal of maximizing the usage and versatility of existing parks in the area by the survey and analysis of the general status of children's parks, land use near the parks, population, users, and traits of usage. For the purposes of this thesis this study has selected 65 of the children's parks in the Seogu District to monitor. It also focused on a number of these parks located in areas which underwent a lot of changes and needed an increase in usage and versatility. Based on the selection criteria, the four target parks, Wojeong, Meongwhack, Dosan and Wicdunjimi children's park were selected. The Survey shows that 55.9% of park visitors visited a park to 'rest and take a walk' and used 'main facilities' meaning resting facilities like pergola and benches. In the nighttime, the number of park visitors is so few because of safety problems. 50% of users were satisfied with parks. It shows that there are many respondents who want to recompose these parks as places for light exercise, resting, meeting, and as community symbols. Generally, these target parks don't reach their full potential and they also do not play their proper roles because they are hampered by the constriction of the law. These stick to an outdated idea of what a park should be like without considering the actual and practical needs of city dwellers. When it comes to the remodeling and refurbishing of these parks we have to rethink the planning process so that these parks may be more versatile and practical in order to accommodate the radical changes of users and patterns of usage.

• Korean Journal of Head & Neck Oncology
• /
• v.21 no.2
• /
• pp.190-195
• /
• 2005

Background and Objectives: Fibula is the flap of choice for reconstruction of wide mandible defects after tumor ablation surgery. In mandible reconstruction, restoring the mandible frame to provide mandibular contour and dental arch while restoring masticatory function are important. Even though vascularized fibula can be osteotomized freely, proper design and flap insetting is not easy because of its three dimensional structure and difference in design according to the defect sites. We reviewed patients who underwent mandible reconstruction with fibular flaps according to the defect sites and suggest proper modification methods of fibular flap according to the various defects sites after tumor ablation surgery. Materials and Methods: Twelve consecutive mandible reconstruction with fibular free flaps were performed for defects after tumor ablation surgery. Patients were classified into 4 groups according to the type of mandibular defect(Group 1 : defect on central segment including symphysis, Group 2 : defect on lateral segment(with or without central segment) confined to body, Group 3 : defect on body and ascending ramus that does not include the condyle, Group 4 : defect including the condyle). Results: We suggest different modification methods of fibular free flap for each patient group. Group 1, 3 ; contour by using multiple closing wedge osteotomy. Group 2 ; single or double barrel reconstruction without wedge osteotomy. Group 4 ; contour using single or multiple wedge osteotomy and condylar reconstruction with costochondral graft. Conclusion: Fibular free flaps can be contoured to any desired shape after multiple osteotomies to restore various mandibular defects. It is a reliable and versatile method for reconstruction of mandibular defects after tumor ablation surgery.