• 대한수학회보
• /
• 제47권4호
• /
• pp.675-685
• /
• 2010

In this paper, we consider a new class of regularized (nonconvex) generalized mixed variational inequality problems in real Hilbert space. We give the concepts of partially relaxed strongly mixed monotone and partially relaxed strongly $\theta$-pseudomonotone mappings, which are extension of the concepts given by Xia and Ding [19], Noor [13] and Kazmi et al. [9]. Further we use the auxiliary principle technique to suggest a two-step iterative algorithm for solving regularized (nonconvex) generalized mixed variational inequality problem. We prove that the convergence of the iterative algorithm requires only the continuity, partially relaxed strongly mixed monotonicity and partially relaxed strongly $\theta$-pseudomonotonicity. The theorems presented in this paper represent improvement and generalization of the previously known results for solving equilibrium problems and variational inequality problems involving the nonconvex (convex) sets, see for example Noor [13], Pang et al. [14], and Xia and Ding [19].

• 한국주거학회논문집
• /
• 제20권2호
• /
• pp.11-18
• /
• 2009

After 2004, as the community mixed-support facility in Japan was admitted as a private business of public facilities based on the Special Law for Urban Regeneration, the community mixed-support facilities in Japan are developed into various types with the view of the urban regeneration and urban renewal, more different point of view, and a tendency of establishment of the community facility has been considerably changed for the past twenty years. The reasons of the change are the social demand for the reformation of facility and the modification of subsidy constitution according to the establishment of equal facility. Some examples of that are the construction of lifelong education community and the change into a equivalent society between male and female and the adjusting to the aging and the welfare society and the social situation of more consumption recently, and in order to emerge from former building system, new facilities related to the contents are being expanded. The complex of the community mixed-support facility has an advantage in that it supplies the services for the complex of the community mixed-support facility, constitutes the communal character and the sense of solidarity among residents and can lead the development of region through the exchange of regional information. Through the Japanese community mixed-support facility which has many cases of it, this study would recognize the suggestion, the feature of it and examine the complex types.

• 한국산학기술학회논문지
• /
• 제14권1호
• /
• pp.454-463
• /
• 2013

본 연구는 건축학과 설계스튜디오 운영실태와 사용자 인식의 분석을 통해 설계스튜디오 실내공간에 대한 개선요소를 제안하였다. 공통적인 개선사항으로 첫째, 개인공간의 명확한 구획이다. 개인공간의 독립성과 영역성을 확보하는 것이 중요한 요소로 나타났고 가변파티션(movable partition)을 통해 획일화된 구성보다 분반에 관계없이 자유롭게 개인공간을 구획하는 것을 선호했다. 둘째, 공동공간 면적의 확보이다. 공동작업공간은 스튜디오내 유일한 공동공간으로 용도가 다양하고 유용성 또한 높은 만큼 유형의 특성을 고려하여 충분한 면적으로 계획하여야 한다. 셋째, 개인공간과 공동공간의 명확한 공간 구분이다. 이를 위해 주어진 면적에서 공간을 효과적으로 사용할 수 있도록 가변파티션, 공용통로 등의 융통성 있는 계획이 필요하다. 넷째, 유형별 스튜디오의 주요 개선사항으로 개실형은 공동작업 공간 확보, 혼합형은 인접스튜디오의 간섭차단, 오픈형은 수업공간의 별도 계획 등으로 나타났다.

• 한국주거학회논문집
• /
• 제18권2호
• /
• pp.129-136
• /
• 2007

This study, as a case study of four university dormitories in Gwangju, examined the situation of interior space and conducted a quantitative survey investigating importance about the interior space and assessment factors of residential environment on users. Then user satisfaction at the assessment factors of residential environment was analyzed to draw problems and explore improvement. The results showed the following problems that should be resolved: Bedrooms should increase the area of convex space; toilets and bathrooms should be changed into a cluster type at least in common use by floor; rest space should reinforce heating and cooling system; robby space should become mixed space for various user's behavior; private fitness rooms should be planned as group fitness space; private libraries should reinforce lighting facilities; and computer rooms should complement and improve HVAC.

• 한국항공우주학회지
• /
• 제47권11호
• /
• pp.787-794
• /
• 2019

본 논문에서는 다수 이종 근접 방어 시스템(Closed-In Weapon System, CIWS)의 최적 무장 할당 문제를 제시하고, 이를 혼합정수선형계획법(Mixed Integer Linear Programming, MILP)으로 변형해 해결하는 기법을 제안한다. 일반적인 무장 할당 문제의 경우 다양한 경우의 수를 고려해야하기 때문에 계산 시간이 기하급수적으로 증가하는 경우가 잦다. 하지만 주어진 문제를 MILP와 같은 혼합정수 최적화 문제로 변형하면 준실시간 내에 전역 최적해를 찾을 수 있다. 본 논문에서는 다수 위협이 각각 다른 시점에 다른 방향에서 방어 자산을 공격하는 상황을 고려한다. 또한, 제원이 다른 다수 CIWS를 동시 운용하는 경우를 추가로 고려한다. 본 논문에서는 이와 같은 문제 상황을 비선형 혼합정수계획 문제로 정식화하고, 이를 MILP로 변형하는 기법을 제시하였다. 또한, 이를 상용 최적화 프로그램으로 구현해 최적화 성능을 검증하였다.

• 한국지리정보학회지
• /
• 제24권3호
• /
• pp.10-31
• /
• 2021

본 연구를 통해 정의된 용도복합 개념은 세 가지 이상의 주요 도시기능의 복합을 의미하며 도시공간의 경제적, 사회적, 환경적 가치를 동시에 실현하기 위한 수단을 의미한다. 이러한 정의 하에서 서울의 용도복합 현상을 탐구하였다. 상대적 엔트로피 개념을 사용하여 단위 지역인 법정동을 기준으로 복합도(R.E.)를 측정하였으며 도시기능의 유형은 용도복합의 정의에서 도출한 개념을 통해 건축물 층별 용도를 유형화하여 계량화하였다. 서울의 용도복합 현상은 복합도(R.E.) 0.631 이하를 '복합아님', 복합도(R.E.) 0.631 초과 0.884 미만을 '불균형 복합', 복합도(R.E.) 0.884 이상 0.991 미만을 '균형복합', 복합도(R.E.) 0.991 이상을 '완전균형복합'의 단계로 구분하여 용도복합 현상을 해석하는 기준으로 지표화하였다.

• 한국환경과학회지
• /
• 제22권11호
• /
• pp.1519-1527
• /
• 2013

We have researched the image of different forest species by asking those who use these forests how they feel when enjoying them for their various purposes. We surveyed five different forest areas, these were a pine forest a korean pine forest a cypress forest a broad leafed forest and a mixed forest. We asked 806 people how these forests made them feel and what they thought was the image of these forests. We offered them a choice of 18 pairs of adjectives to describe how they felt. We used the SD Scale and discovered 4 different factors. A feeling of comfort and freshness and a feeling of order and space. There was also a feeling of intimacy with nature. Each forest gave out its own feeling and image. comfort and freshness was felt by those in the pine forest, the korean pine forest, the broad leafed forest and the mixed forest. A Feeling of order and space was felt in the korean pine forest. Intimacy was felt in the pine forest, broad leafed forest and the mixed forest.

• International journal of advanced smart convergence
• /
• 제6권4호
• /
• pp.80-87
• /
• 2017

Mixed Reality (MR) shows a composite image of a virtual object in the real world. It has been applied to various fields by the introduction of head mounted display (HMD) such as Microsoft's Hololens [1-3]. The virtual studio in broadcasting combines the contents created by computer graphics with the actual set to reproduce the 3D image screen. This requires physical space such as a set of chroma keys. It also requires professional knowledge and manpower and costly equipment to post-process the graphics and information for long periods of time. Therefore, in this paper, we aim to study the implementation of virtual studio based on Mixed Reality using Microsoft Hololens. Through the implementation of 'Holo-studio' application, realistic and virtual objects of broadcasting camera viewpoint were acquired at the same time. Using Microsoft's spectator view library, the frame rate is degraded in objects with high polygons (100,000 polygons). The proposed method maintains 60 fps image transmission in high polygon objects. The results of this paper show the possibility of using virtual studio at low cost which does not need separate physical space.

• International Journal of Aeronautical and Space Sciences
• /
• 제16권2호
• /
• pp.295-310
• /
• 2015

In the present study, an unstructured mixed mesh flow solver was used to conduct a numerical prediction of the aerodynamic performance of the S-76 rotor in hover. For the present mixed mesh methodology, the near-body flow domain was modeled by using body-fitted prismatic/tetrahedral cells while Cartesian mesh cells were filled in the off-body region. A high-order accurate weighted essentially non-oscillatory (WENO) scheme was employed to better resolve the flow characteristics in the off-body flow region. An overset mesh technique was adopted to transfer the flow variables between the two different mesh regions, and computations were carried out for three different blade configurations including swept-taper, rectangular, and swept-taper-anhedral tip shapes. The results of the simulation were compared against experimental data, and the computations were also made to investigate the effect of the blade tip Mach number. The detailed flow characteristics were also examined, including the tip-vortex trajectory, vortex core size, and first-passing tip vortex position that depended on the tip shape.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2005년도 ICCAS
• /
• pp.529-534
• /
• 2005

In this paper, a new type of output feedback control, called a $H_2/H_{\infty}$ fnite memory control (FMC), is proposed for deterministic state space systems. Constraints such as linearity, unbiasedness property, and finite memory structure with respect to an input and an output are required in advance to design $H_2/H_{\infty}$ FMC in addition to the performance criteria in both $H_2$ and $H_{\infty}$ sense. It is shown that $H_2$, $H_{\infty}$, and mixed $H_2/H_{\infty}$ FMC design problems can be converted into convex programming problems written in terms of linear matrix inequalities (LMIs) with some linear equality constraints. Through simulation study, it is illustrated that the proposed $H_2/H_{\infty}$ FMC is more robust against uncertainties and faster in convergence than the existing $H_2/H_{\infty}$ output feedback control schemes.