• Title, Summary, Keyword: Mixed design

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A COEX mall Case study on the Correlation between Circulation system and Environmental elements for a Better Wayfinding design in Mixed-use buildings (동선체계와 환경요소의 상관관계가 복합용도건물의 길찾기에 미치는 영향에 관한 코엑스몰 사례연구)

  • Park, MinJi;Lee, Hyunsoo
    • Korean Institute of Interior Design Journal
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    • v.25 no.1
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    • pp.151-162
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    • 2016
  • Various mixed-use buildings have been developed in the process of resolving the issue of 'urban regeneration' in the modern city. In this urban regeneration process, the size of the mixed-use buildings and the level of their functional complexity have been increased. It requires a quantitative and systematic approach in order to analyze the internal circulation flow within the large-scale commercial mixed-use buildings. Circulation system and environmental factors, respectively, have been vital criteria for the effectiveness of a Wayfinding design within the mixed-use buildings. The circulation system in this paper consists of 1) the number of the incoming paths at each node, and 2) the angle of directional transition from the incoming paths at the node. The environmental factors include 1) color tone, 2) materials, 3) lighting, and 4) pattern of the interior design of the mixed-use buildings. In this paper, the author develops a method of investigating the influence of the correlation between the circulation system and the environmental factors on the design of Wayfinding on the view of the remodeled COEX MALL interior design.

A Study on the Mixed Use Complex Design (Mixed Use Complex 디자인에 관한 연구 -업무/상업/문화오락/주거기능 복합의 사례분석을 중심으로-)

  • 이혜진
    • Archives of design research
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    • v.21
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    • pp.207-217
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    • 1997
  • Mixed Use Area (Multifaceted Integration) is getting increasingly demanded since it has several merits such as preventing CBD from being emptied during night time, making daily life comfortable and utilizing the land more efficiently. However, the characteristic of Mixed Use Area -as advantages of it-, which is that it combines residence, retail, office, cultural, entertainment facilities altogether could be regarded as a weakness when it is viewed from each functions' original purposes such as residential and retail areas'. Accordingly, it is needed to do basic research and develop design guidelines of the Mixed Use Area to prepare its another take-off. The purpose of this research is to study theoretical background of Mixed Use Area's birth, understand its status quo by examining examples overseas and presented possible standardized ways of developing it.

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Blade Shape Design of Mixed-flow Pump Impellers and Diffusers in a Fixed Meridional Geometry (자오면 고정 형상에서 사류펌프 임펠러 및 디퓨져 날개형상 설계)

  • Kim, Sung;Choi, Young-Seok;Lee, Kyoung-Yong
    • Proceedings of the SAREK Conference
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    • pp.1203-1208
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    • 2009
  • In this paper, the flow characteristics of the mixed-flow pump impellers and diffusers were numerically predicted by commercial CFD software and DOE(design of experiments). We also discussed how to improve the performance of the mixed-flow pump by designing the impeller and diffuser in the mixed-flow pump. Geometric design variables were defined by the vane plane development which indicates the blade-angle distributions and length of the impeller and the diffusers. Firstly, the design optimization of the defined impeller geometric variables has been done. After that, the flow characteristics were analyzed in the point of incidence angle at the diffuser leading edge for the optimized impeller. Then design of the defined diffuser shape variables has been performed. The reason for the performance improvement was discussed by examining the flow characteristics through the diffuser.

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Optimization of Vane Diffuser in a Mixed-Flow Pump for High Efficiency Design

  • Kim, Jin-Hyuk;Kim, Kwang-Yong
    • International Journal of Fluid Machinery and Systems
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    • v.4 no.1
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    • pp.172-178
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    • 2011
  • This paper presents an optimization procedure for high-efficiency design of a mixed-flow pump. Optimization techniques based on a weighted-average surrogate model are used to optimize a vane diffuser of a mixed-flow pump. Validation of the numerical results is performed through experimental data for head, power and efficiency. Three-level full factorial design is used to generate nine design points within the design space. Three-dimensional Reynoldsaveraged Navier-Stokes equations with the shear stress transport turbulence model are discretized by using finite volume approximation and solved on hexahedral grids to evaluate the efficiency as the objective function. In order to reduce pressure loss in the vane diffuser, two variables defining the straight vane length ratio and the diffusion area ratio are selected as design variables in the present optimization. As the results of the design optimization, the efficiency at the design flow coefficient is improved by 7.05% and the off-design efficiencies are also improved in comparison with the reference design.

Development of Continuous/Discrete Mixed $H_2$/H$\infty$ Filtering Design Algorithms for Time Delay Systems

  • Kim, Jong-Hae
    • Transactions on Control, Automation and Systems Engineering
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    • v.2 no.3
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    • pp.163-168
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    • 2000
  • The problems of mixed $H_2/H_{\infty}$ filtering design fer continuous and discrete time linear systems with time delay are investigated. The main purpose is to design a stable mixed $H_2/H_{\infty}$ filter which minimizes the H$_2$Performance measure satisfying a prescribed H$_{\infty}$ norm bound on the closed loop system in continuous-time case and discrete-time case, respectively. The sufficient conditions of existence of filter, the mixed $H_2/H_{\infty}$ filter design method, and the upper bound of performance measure are proposed by LMI(linear matrix inequality) techniques in terms of all finding variables. Also, we present optimization problems in order to get the optimal mixed $H_2/H_{\infty}$ filter in continuous and discrete time case, respectively.

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The Influence of Price Sensitivity, Bundle Discount Type and Price Level of Male Cosmetics on Quality Perception (가격민감도와 번들할인 유형, 남성화장품의 가격수준이 품질지각에 미치는 영향)

  • Kim, Keun Jung;Hwang, Sun Jun
    • Journal of the Korean Society of Costume
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    • v.66 no.2
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    • pp.1-14
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    • 2016
  • This study was intended to investigate the influences that consumer's price sensitivity, bundle discount type, and price level of the male cosmetics have on consumer attitude. The design of this research was comprised of $2{\times}2{\times}2$ mixed design studies. The first element was high price sensitivity vs. low sensitivity, the second element was the bundle discount type (mixed leader vs. mixed-joint), and the third element was the price level of male cosmetics (high-price brand vs. low-price brand). The results of this study showed that price sensitivity, bundle discount type and price level of male cosmetic had a statistically significant interaction effect on the consumer's quality perception. The quality perception of low-cost brands for high price sensitivity/mixed-joint bundle group was low. The quality perception of low-cost brands for mixed-leader bundled groups did not change significantly even when the price sensitivity became higher. However, it can be seen as the same result that the overall value is higher when suggested the price information in Mixed-leader bundle than Mixed-joint bundle. In particular, this study suggests that price information should be presented in mixed-leader bundles for high price sensitivity and low cast brands.

A Study on the An Acade of Mixed-Use Building - Focused on the A user form of Mixed-Use Building - (주상복합 주거단지의 상가시설 실내계획에 관한 연구 - 주상복합 상가시설의 이용자 패턴을 중심으로 -)

  • Roh, Yeon-Soo;Lee, Hyen-Hee
    • Proceedings of the Korean Institute of Interior Design Conference
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    • pp.165-169
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    • 2006
  • Here this Study is purposed Importance of an arcade in Mixed - Use Building. Because Mixed - Use Building ha)'e problem In korea. So Solution the Community of Mixed - Use Building a Housing development. An Acade of Mixed-use Building have a good point that is carrier Space. The Process of this Study 1) A study on the Mixed-Use Building Form and a user form in theory. 2) Condolence about Mixed-used Building of three type in kyungki and seoul ( Lotte Castle In Jamsil Seoul, park view In SungNam kyungki, Dong- Yang Paragon in SungNam kyungki) 3) analysis by theory of Mixed-Use Building Form and a user form about Mixed-Use Building 4) As a result of as being Comparison three building develop.

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A Direction of Planning Mixed-use Facilities of Secondary School (중등학교 복합화시설 계획방향 연구)

  • Lee, Kum-Jin
    • The Journal of Korean Institute of Educational Facilities
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    • v.21 no.4
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    • pp.3-10
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    • 2014
  • The opportunity, provided for a direction planning mixed-use facilities for secondary schoo, is the purpose of this paper. Mixed-use facilities are an important issue in school building as it seeks to revive the facilities for local residents in school zone. The latest works of mixed-use facilities in secondary school, however, which are evaluated as well reflected the patterns of education and local community, are still deficient in that communicational elements in secondary school are inadequate. The cases of this paper, which are grown up as an educational building with mixed-use facilities opened to the local residents, are suitable to offer the design method for the future secondary school with mixed-use facilities. This paper reviews an assessment of its success in mixed-use facilities for secondary school as a public building for both of local residents and students and concludes with the establishment of design method for the future school; extraction of the factors contributing to development of mixed-use facilities in school area and proposal of design method; implementation of renewal of mixed-use facilities including educational program and spaces for the creation of identity.

Conjoint analysis with mixed levels of attributes (혼합된 수준들의 속성들을 갖는 컨조인트 분석)

  • Lim, Yong B.;Chung, Jong Hee
    • Journal of the Korean Society for Quality Management
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    • v.44 no.4
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    • pp.799-811
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    • 2016
  • Purpose: The conjoint analyst in marketing are interested in detecting whether there exist synergy or antagonistic effects between two attributes. In the cases where attributes have two or three levels, we research on the design of survey questionnaire to estimate all the main effect and as many two factor interaction effects as possible. Methods: We consider the balanced incomplete block (BIB) mixed level factorial design $2^f{\times}3^g$ or fractional factorial design. To reduce the number of questions in a questionnaire, we propose the balanced incomplete block mixed level design with minimum aberration which is generated by implementing proc factex in SAS. Also, we propose using two or three level BIB factorial design instead of mixed level designs by transforming three level attributes into two attributes of two levels and two level attribute into three level attribute by using dummy level technique. Results: We propose three methods for designing survey questionnaire where the block and design generators are found with practical number of questions in a questionnaire. By analyzing all the respondents survey data generated by the simulation study, we find the proper model and do the concepts optimization. Conclusion: The proposed methods of designing survey questionnaires seem to perform well in the sense that the proper model, and then the optimal concept is found in a case study where all the respondents survey data are generated by the simulation study.

Observer-Based Mixed $H_2/H_{\infty}$ Control Design for Linear Systems with Time-Varying Delays: An LMI Approach

  • Karimi, Hamid Reza
    • International Journal of Control, Automation, and Systems
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    • v.6 no.1
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    • pp.1-14
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    • 2008
  • This paper presents a convex optimization method for observer-based mixed $H_2/H_{\infty}$ control design of linear systems with time-varying state, input and output delays. Delay-dependent sufficient conditions for the design of a desired observer-based control are given in terms of linear matrix inequalities (LMIs). An observer-based controller which guarantees asymptotic stability and a mixed $H_2/H_{\infty}$ performance for the closed-loop system of the linear system with time-varying delays is then developed. A Lyapunov-Krasovskii method underlies the observer-based mixed $H_2/H_{\infty}$ control design. A numerical example with simulation results illustrates the effectiveness of the methodology.