• East Asian mathematical journal
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• 제29권3호
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• pp.303-314
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• 2013

In this paper, we introduce an iterative scheme for finding a common element of the set of solutions of a generalized equilibrium problem and the set of common fixed points of a finite family of asymptotically ${\kappa}$-strict pseudo-contractions in Hilbert spaces. Weak and strong convergence theorems are established for the iterative scheme.

• 한국콘텐츠학회논문지
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• 제5권5호
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• pp.140-144
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• 2005

본 논문에서는 퍼지측도가 공(空) 가법성을 갖는 경우 준노름퍼지 보적분의 거의모든점에서의 수렴정리가 성립함을 보였다.

• 한국산업융합학회 논문집
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• 제17권4호
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• pp.194-202
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• 2014

Bonding Machine is new concept of semi industry. In this study, bonding machine is designed with aximatic design, then manufactured based on it. Axiomatic design offers a scientific base for design in an efficient way. Many application of the independence axiom have been pulished, however, the information axiom has been mainly applied to FR - DP problems except for few case studies.

• 한국전산유체공학회지
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• 제14권4호
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• pp.13-22
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• 2009

A two-phase (gas and liquid) flow analysis solver, named CUPID, has been developed for a realistic simulation of transient two-phase flows in light water nuclear reactor components. In the CUPID solver, a two-fluid three-field model is adopted and the governing equations are solved on unstructured grids for flow analyses in complicated geometries. For the numerical solution scheme, the semi-implicit method of the RELAP5 code, which has been proved to be very stable and accurate for most practical applications of nuclear thermal hydraulics, was used with some modifications for an application to unstructured non-staggered grids. This paper is concerned with the effects of interpolation schemes on the simulation of two-phase flows. In order to stabilize a numerical solution and assure a high numerical accuracy, the second-order upwind scheme is implemented into the CUPID code in the present paper. Some numerical tests have been performed with the implemented scheme and the comparison results between the second-order and first-order upwind schemes are introduced in the present paper. The comparison results among the two interpolation schemes and either the exact solutions or the mesh convergence studies showed the reduced numerical diffusion with the second-order scheme.

• 미래기술융합논문지
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• 제3권1호
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• pp.51-58
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• 2024

본 본 연구의 현실은 인체 미술의 발전 추세에 따라 미용인들 사이에서 아트 메이크업과 반영구 화장 등이 뷰티 산업의 유망산업으로 부각 되고 있으며, 시간이 지날수록 전문기술 향상에 대한 인식이 점차 높아지고 있다는 점이다. 이에 따라 미용 산업을 전공하거나 반영구 화장을 배우는 미용사들 사이에서 뿐만 아니라 많은 미용기술을 배우는 뷰티 학원에서도 반영구 화장에 대한 관심이 높아지고 있으며, 이러한 트렌드 기술은 국제 미용대회에서 홍보되고 있다. 반영구적 기술을 전문으로 하는 미용 기술자를 대상으로 기술대회를 개최합니다. 교육에 관한 정보교류의 장으로서 교육제도의 확산 등 시너지 효과를 기대할 수 있을 것으로 기대됩니다. 우리나라의 급속한 산업발전은 산업발전에 따른 전문·세부기능인력의 수급과 기술 수준 측면에서 인력형성에 큰 변화를 가져왔고, 이로 인해 미용사의 기술 및 전문기술이 향상 되어 왔다. 미용사 전문교육자격의 우수성과 높은 기술평가. 이는 자기계발에 큰 영향을 미쳤으며 숙련된 기술을 달성하기 위한 노력의 중요성을 재인식하게 될 것으로 기대한다.

• 한국농공학회논문집
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• 제64권5호
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• pp.67-77
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• 2022

Recently, the trend in structural analysis and design is moving towards the development of reliable system. The reliability-based method defines various limit states related to usability and failure, thereby enabling multiple levels of design according to the importance of a structure. Meanwhile, an actual structure is composed of a set of several elements, and particularly, a frame type is composed of a system in which the members are connected each other. At this time, the actual connection between members is in a semi-rigid condition, not in complete rigid or hinged. This semi-rigid is found in several structures, especially in agricultural facilities designed with lightweight materials. In this study, a system reliability analysis technique for frame structure was established, and applied to an analysis of the semi-rigid connection. Various conditions of correlation were applied to reflect the connectivity between members, and through this, the limitations of existing structural analysis method and the behavioral characteristics of structure were analyzed. The failure probability of the frame member component and the overall structure system was significantly different in consideration of the semi-rigid connection. In addition, it was evaluated that the behavior of structure can be more accurately analyzed if the correlation according to the position of members in a system is further investigated.

• 수산해양기술연구
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• 제59권4호
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• pp.336-343
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• 2023

The aging fishery training vessels from the past have mostly been decommissioned, and many universities are introducing state-of-the-art large fishery training vessels. The purpose of these training vessels is to train marine professionals and above all, safety to prevent marine accidents should be of utmost priority as many students embark on the vessel. This study estimated the impact of the hydrodynamic interaction forces acting on the model vessel (fishery training vessel) from the bank when the vessel pass near the semi-circle bank wall in various conditions through the numerical calculation, especially concerning maneuvering motions of the vessel. For estimation, variables were mainly set as the size of the semi-circle shape, the lateral distance between the bank and the model vessel, and the depth near the bank. As a result, it was estimated that, in order for the model vessel to safely pass the semi-circle bank wall at a speed of 4 knots, the water depth to the vessel draft ratio should be 1.5 or more (approximately 8 m of water depth), and the lateral distance from the semi-circle bank wall should be 0.4 times the model vessel's length (L_pp) or more (a distance of 34 m or more). Under these conditions, it was expected that the model vessel would pass without significantly being affected by the bank wall.

• 한국멀티미디어학회논문지
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• 제20권8호
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• pp.1447-1455
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• 2017

In a trawl-net simulation, it is very important to process the physical phenomenons resulting from real collisions between a net and fishes. However, because it is very difficult to reconstruct the surface with mass points, many researchers have generally detect the collision using an approximation model employing a sphere, a cube or a cylinder. These approaches occur often result in inaccurate movements of a fish due to the difference between a real-net and a designed-net. So, many systems have manually adjusted a net surface based on actual measurements of mass points. These methods are very inefficient because it needs much times in an adjustment and also causes more incorrect inputs according to a rapid increment in the number of points. Therefore, in this paper, we propose a reconstruction method that it semi-automatically reconstructed trawl-net surfaces using the equation of motion at each mass point in a mass-spring model. To get an easy start in a beginning step of the spread, it enables users to get interactive adjustment on each mass point. We had designed a trawl-net model using geometrical structures of trawl-net and then automatically reconstructed the trawl-net surface using scale-space meshing techniques. Last, we improve the accuracy of reconstructed result by correction user interaction.

• 한국융합학회논문지
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• 제9권1호
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• pp.241-251
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• 2018

본 연구는 지역사회와의 융합을 위해 학교를 기반으로 고위험 문제행동을 보이는 초등학생을 대상으로 실시한 구조화된 인지행동 중재 프로그램의 효과에 관한 예비연구이다. 개발한 프로그램은 준전문가를 통해 실시하여 효과를 검증하였다. 고위험군 선별을 위해 도농복합지역의 한 초등학교 3학년 전체 102명을 대상으로 한국판 아동행동평가척도(K-CBCL)를 실시하였고 문제행동증후군 척도의 T점수가 60점 이상인 고위험군 학생 32명을 선정하여 개입집단과 대조집단으로 나누었다. 인지행동치료를 기반으로 9회기의 구조화된 집단 프로그램을 개발하였고, 심리상담 전공의 대학원생 및 대학생이 전문가의 지도를 받아 개입집단에게 프로그램을 실시하였다. 개입 후 내재화 집단은 내재화 문제, 불안 및 우울증상이 유의하게 감소되었으며 외현화 집단은 외현화 문제, 공격행동에 유의미한 감소를 보였지만, 혼합형 집단에서는 유의미한 변화가 관찰되지 않았다. 질적인 분석을 통해 점수의 의미를 추가적으로 살펴보았다. 결과에 대한 시사점과 연구의 제한점 그리고 후속연구에 대해 제언하였다.

• 대한수학회논문집
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• 제30권3호
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• pp.209-219
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• 2015

In this article, we first give metric version of an iteration scheme of Agarwal et al. [1] and approximate fixed points of two finite families of nonexpansive mappings in hyperbolic spaces through this iteration scheme which is independent of but faster than Mann and Ishikawa scheme. Also we consider case of three finite families of nonexpansive mappings. But, we need an extra condition to get convergence. Our convergence theorems generalize and refine many know results in the current literature.