• Journal of Mechanical Science and Technology
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• v.19 no.2
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• pp.704-715
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• 2005

In this study, to investigate in-cylinder tumble or swirl intake flow of a gasoline engine, the flow characteristics were examined with opening control valve (OCV) and several swirl control valves (SCV) which intensify intake flow through steady flow experiment, and also turbulent characteristics of in-cylinder flow field were investigated by 2-frame cross-correlation particle image velocimetry (PIV) method. In the investigation of intake turbulent characteristics using PIV method, the different flow characteristics were showed according to OCV or SCV figures. The OCV or SCV installed engine had higher vorticity and turbulent kinetic energy than a baseline engine, especially around the wall and lower part of the cylinder. Above all, SCV B type was superior to the others. About energy dissipation and reynolds shear stress distribution, a baseline engine had larger loss than OCV or SCV installed one because flow impinged on the cylinder wall. It should be concluded, from what has been said above, as swirl component was added to existing tumble flow adequately, it was confirmed that turbulent intensity was enlarged, flow energy was conserved effectively through the experiment. In other words, there is a suggestion that flow characteristics as these affected to in-cylinder combustion positively.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2003.11a
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• pp.301-306
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• 2003

The main gate of university is a symbolic role to grasp the its activities within a limited area. The form or shape is various at its circumstances such as activity type, region, etc. The study aimed at offering the information to grasp the fixed quantity to an university gate plan which analyzed a psychological judgment criteria according to form or shape characteristics of the university main gate. It selected ten universities through a classification of the types. The twenty adjective phrases were extracted by review of the further research. After then, it extracted to draw high adjective in observers visual image formation. This study analyzed the preference, symbolized representation of the university main gate. The results are summarized as follows : 1. The symbol and representation of form has a high correlation. In other words, the symbolic scale would be high positively when the representation scale be high. 2. Eight items among the twenty adjective items appeared to explain the university main gates. The twelve items of them wouldn't be related to grasp the main gate

• Journal of the Korean Society of Costume
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• v.62 no.7
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• pp.170-184
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• 2012

The purpose of this study is, as one of Jeju culture contents projects, to suggest a new method to develop the textile design using contents of Jeju Myth, Jacheongbi, in other words, to create mythic patterns by borrowing effectively from the mythic image of Jacheongbi on contemporary fashion. To achieve this, after extracting mythic contents from real animals from the myth (chicken, horse, cow and owl) of Jacheongbi, we draw the animal motifs from a mythic image basis of archetypal symbols and empirical awareness about animals and shamanistic imagination, and create mythic patterns. In order to achieve this design pattern, Adobe Photoshop CS5 Extended was used to design the animal motifs, and then they were arranged via bidirectional layout. And to conclude, development of the creative textile design using the mythic contents of Jacheongbi contribute to invigorating the fashion industry and regional culture contents projects in Jeju, and also become the basis of creating added value to it.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.21 no.1
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• pp.73-82
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• 2018

Urban parks are important bird habitat in cities. Various studies have evaluated the habitat function of urban parks focused on field surveys. In this study, we performed applicability of NDVI obtained from Landsat 8 OLI image as a factor for spatial planning considered bird diversity. This study was classified with green boundary into three groups using NDVI's value. Environmental variables were calculated by the green area ratio of the surrounding area from 100m to 500m at each groups. The 20 environmental variables such as park area, park shape index, canopy of tree, etc. were derived, the regression analysis was performed as a dependent variable for the bird diversity of urban parks. As a result, the park area and the green area ratio of Group 3, classified high NDVI, within the 100m buffer were adopted as the variables in the regression model. In other words, it was confirmed that as the park becomes larger, the distribution of key green areas within a radius of 100m of the parks becomes higher, the diversity of bird species has increased. It was appropriate to use satellite image, NDVI to analyze species diversity in urban area.

• Journal of the Korea Society of Computer and Information
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• v.11 no.1 s.39
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• pp.63-69
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• 2006

There are many new studies on the contents for mobile devices that are all connected to networks in a seemingly ubiquitous environment. The purpose of this paper is to propose a framework for obtaining Internet content intended for computers on mobile devices. In other words, the primary concern of this paper is to select the best images for optimal performance and convert them into images that can be effectively reproduced on mobile devices. For this, the performance of the server is to be optimized through selecting high-priority images among the many available images and converting them while considering the display pixel rates (DPR) and the image distribution areas.

• Proceedings of the IEEK Conference
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• 2000.07a
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• pp.429-432
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• 2000

The new MPEG-4 video coding standard enables content-based functionalities. In order to support the philosophy of the MPEG-4 visual standard, each frame of video sequences should be represented in terms of video object planes (VOP’s). In other words, video objects to be encoded in still pictures or video sequences should be prepared before the encoding process starts. Therefore, it requires a prior decomposition of sequences into VOP’s so that each VOP represents a moving object. A parallel processing system is required an automatic segmentation to be processed in real-time, because an automatic segmentation is time consuming. This paper addresses the parallel processing: system for an automatic segmentation for separating moving object from the background in image sequences. The proposed parallel processing system comprises of processing elements (PE’s) and a multi-access memory system (MAMS). Multi-access memory system is a memory controller to perform parallel memory access with the variety of types: horizontal, vertical, and block access way. In order to realize these ways, a multi-access memory system consists of a memory module selection module, data routing modules, and an address calculation and routing module. The proposed system is simulated and evaluated by the CADENCE Verilog-XL hardware simulation package.

• Korean Institute of Interior Design Journal
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• v.14 no.3 s.50
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• pp.122-129
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• 2005

The purpose of this study aims at the development of architectural design thinking which has been studied in the Kant's Epistemology to examine the Schema theories. In this point of view, the related theories are reviewed through Expression Form, representation of architectural knowledge and so on. One of these words, the Schema that formed by transcendental an Experience and Memory of transcendental an Experience, not only Play an important Part in the designer's thinking system about a specific problem but also appeared by distinctive features(image) and included by connotation as like a designer's ideology. Speaking briefly, thinking of a designer familiar with us as abstract confusion can be confined such methodological tools as schema, and image, etc., which we can easily understand the relationship among them through mechanism of Kant's [Concept-Schema-Intuition]. Evidences collected from case studies and its application on architectural design yield following results. First, design thinking can be defined as Kant's Epistemology composed of the schema and its extended factors(architectural-schema). Second, design thinking can be revealed different characteristics depending on the degree of the schema and architectural-schema. Lastly, the methodology will be proposed after application of the result to architects' works.

• Investigative Magnetic Resonance Imaging
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• v.13 no.1
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• pp.9-14
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• 2009

T1-, and T2-weighted imagings and FLAIR (fluid attenuated inversion recovery) imaging are fundamental imaging methods in the brain. T1-weighted imaging is a spin-echo sequence with short TR and short TE and produces the tissue contrast by different T1 relaxation times. In other words, short TR maximizes the difference of the longituidinal magnetization recovery between the tissues. T2-weighted imaging is a spin-echo sequence with long TR and long TE and produces the tissue contrast by different T2 relaxation times. Long TE maximizes the difference of the transverse magnetization decay between the tissues. FLAIR is an inversion recovery sequence using 180 degree inversion pulse. 2500 msec of inversion time is applied to suppress the CSF signal.

• Korean Journal of Child Studies
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• v.17 no.2
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• pp.79-105
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• 1996

The purpose of this study was to understand children's viewpoints on their fathers from a phenomenological perspective. Sixty nine elementary school children (2nd and 5th grade) were asked to write poems about their fathers. Through the poems, they described their feelings towards their fathers in their own words. Results indicated that the most prominent and popular description for the father was in terms of the provider of the family. Because of the excessive emphasis on the provider role, fathers are very busy and tired, and can not Participate actively in their children's daily life. As a result, many fathers are in an on-looker position in their homes, and their children are spoiled. On the other hand, children described their fathers as warm, kind- hearted, respectable and great images that gave everything to their children. They liked and sincerely appreciated these aspects of their fathers. Because of the gap between the ideal image of the father and the actual provider image of the father, children experience conflict and a psychological deficit of a father. We believe that this problem will be improved through the fathers' own awareness of their role which pays more attention to our children's wellbeing and a reform of the existing social system.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2007.11a
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• pp.159-162
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• 2007

In the twentieth century, due to extraordinary development of companies and life style, etc, market environments to which companies around the world currently face are being changed with reflecting the current age in various fields, which result from globalization, digitalized innovation, diversity by information acceptance, an enhanced level of a consumer's consciousness, developed mass media, etc. The companies are trying to expand their sale areas, not only products but also their cultures, images, and brand power in the name of a 'marketing' in a space In other words, if companies and brands express some identities without considering an entire image evaluated by customers, a mis-positioning for the companies and the brands may be caused. In this case, the companies and brands may not influence on potential major customers at all, of an image for the companies and brands may be degrade Accordingly, a space marketing is required as a distinguished strategic means in characterizing identities according to brands. Also, a design for communicating the space marketing with the customers is required. Therefore, the purpose and effects of the present research are to analyze how identity characteristics for brands and company images are reflected by analyzing a faadeof a hall for housing cultures, and are to analyze how they are recognized by customer.