• 한국디지털정책학회:학술대회논문집
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• 2005.11a
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• pp.425-433
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• 2005

The purpose of this paper is to study a framework on building and continuing consumer trust in mobile travel and tourism content (M-TTC). Trust development life cycle in e-commerce is a trust-oriented building flow of online consumer. Travel information and content in mobile commerce is a initiative and immature step in the ubiquitous era. Travel and tourism industry is information intensive and network business between the bricks and clicks, the public and private, and the virtual and physical. A framework of travel and tourism content in m-commerce based on Siau and Shen (2003) and in perspective of information cities by Ferguson, et al. (2004) proposes conceptual components to build information and content for continuous consumer trust. The main results of the paper by focus group research methodology focus on building a conceptual m-trust model of mobile content in travel and tourism industry. Additionally, it shows what the important factor is and how the trustworthy improves continuously to the public, mobile vendors, and technological aspects.

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 1999.10c
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• pp.594-598
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• 1999

To analyze the characteristics of unconfined compressive strength of reinforced soil bricks made of clayey and sandy mixed with cement, lime, staple fiber and their combinatioin , a series of unified comparessive tests was performed. The resutls are summarized as follows ; 1) Reinforcing effect of reinforced clayed soil and that of soil brick of sandy soil mixed with cement and staple fiber is 8 times greater than no reinforced sandy sol. Therefore, the reinforcing effect seems to be greater in sandy soil than in clayey soil . 2) Lime shows a negative reinforcing effect in clayed soil but a little reinforcing effect in sandy soil. 3) It is appeared that strain at failure of soil brick reinforced with staple fiber is greater than that of unreinforced brick regrardless of soil's type.

• Journal of the Korea Computer Graphics Society
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• v.11 no.1
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• pp.40-49
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• 2005

Several optimization techniques have been proposed for volume ray casting, but these cannot achieve real-time frame rates. In addition, it is difficult to apply them to some applications that require perspective projection. Recently, hardware-based methods using 3D texture mapping are being used for real-time volume rendering. Although rendering speed approaches real time, the larger volumes require more swapping of volume bricks for the limited texture memory. Also, image quality deteriorates compared with that of conventional volume ray casting. In this paper, we propose a data structure for real-time volume ray casting named PERM (Precomputed dEnsity and gRadient Map). The PERM stores interpolated density and gradient vector for quantized cells. Since the information requiring time-consuming computations is stored in the PERM, our method can ensure interactive frame rates on a consumer PC platform. Our method normally produces high-quality images because it is based on conventional volume ray casting.

• Journal of the Korean housing association
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• v.11 no.1
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• pp.103-113
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• 2000

The main purpose of this paper is to provide useful infonnation for residential site design in Korea by analyzing Japanese case. The important characteristics of Japanese design techniques are follows. First, the characteristics of residential site development can be expressed as "eco-friendly" and "public order". The patterns of spatial use also focuses on living environment improvement. Second, variety replaces unity in internal mobility plans. For example the width of street, size of park are not same in a site boundary. Third, to avoid street parking and commodity exhibition, commercial buildings are set-back and public parking lot is constructed. Fourth, fences of private house are made of trees rather than bricks. It connects green environment between internal and external space of houses.nal space of houses.

• Journal of the Korean housing association
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• v.22 no.3
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• pp.83-91
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• 2011

The aim of this study was to determine the basic perception of Kleingarten house planning of Jeonbuk area. The survey method was used for data collection. The major finding were as follows: 1) Almost all respondents have a very positive attitude the participant of Kleingarten. Many respondents wanted the cheapest price for the Kleingarten rental fee and for the travel time between their home and Kleingarten to be under an hour. 2) Two different size of 45 and 66 $m^2$ were preferable for the house floor plans. The most preferable floor plan type chosen by the respondents was a house design with a terrace and the elderly householders especially preferred a house floor plan with an LDK design. 54.3 per cent respondents liked the log house and 93.3 per cent respondents liked the eco-friendly building materials such as wood, earth (Korean natural earth: whangto), and adobe bricks etc. 3) There were more needs for useful facilities such as a pergola, a grassy lawn, small ponds, a playground for the childrens, patio table settings, etc.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2004.11a
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• pp.153-156
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• 2004

As architects and interior designers work farther and farther afield, so the connection of buildings to the particular place they are constructed becomes increasingly. Also, during the past twenty years they have made a habit of asking probing and often uncomfortable questions about how architectural conventions force patterns of behavior. In place of bricks and mortar, they have mixed store, office, clinic, and residence. In this project, the buildings consist of pharmacy, store, dental clinic, oriental clinic and residence. This building was designed by architect to have panoramic views. The view of surrounding road from every wall becomes a constant point of reference, a back drop against which the whole house revolves. Now, all the words can be suitable for describing the oriental clinics. But the oriental clinics of these days may construct the unintentional common image, may be because of the clients sense about the finishing materials or colors in vogue. The Importance of identity in the design of oriental clinic becomes higher increasingly, and with the same reason, the conviction of interior designer.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.04a
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• pp.783-786
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• 2016

E-learning is a new teaching model nowadays, and Virtual Reality (VR) technology is reported that the use of virtual reality as an education tool can increase student interests, understanding, and creative learning because of encouraging students to learn by exploring and interacting with the information on the virtual environment. Besides that, LEGOs have long been the favorite of many children. LEGOs provide a mechanism to understand and do for many concepts from spatial relationships to robotics platforms. In this paper, we present a virtual reality application based on the assembly of LEGO-Like bricks to increase math and science learning by improving spatial thinking. It not only encourages students to pursue careers in science, technology, engineering, or mathematics but also enhances learner's ability to analyze and solve problems. The application is built by Processing 2.0 as the easier programming language which is a top-down approach to build the 3D interactive program.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.04a
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• pp.353-356
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• 2016

최근 스마트폰 등 모바일 기기의 발전과 보급은 더욱 다양한 분야에 걸쳐 증강현실 기술을 적용할 수 있도록 하고 있다. 특히 증강현실 이용 방법의 한 가지는 전통적인 수업 방식에서 탈피한 e-learning, e-training을 들 수 있다. 증강현실의 가장 큰 특징은 실제 존재하는 사물이나 풍경 위에 가상의 이미지를 덧씌워 사용자에게 정보를 더해주는 것이다. 이를 통해 더욱 현실감 있는 정보를 전달할 수 있고, 새로운 사용자 경험을 제공하는 교육 시스템을 제공할 수 있다. 이 논문에서는 증강현실을 이용하여 실시간으로 창의적 조형이 가능한 교육용 블록의 위치를 인식하여 모바일 기기를 통해 블록 조립 방법에 대한 안내를 제공하는 모바일 애플리케이션을 제안한다.

• Steel and Composite Structures
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• v.20 no.6
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• pp.1391-1409
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• 2016

Masonry infill has a significant effect on stiffness contribution, strength and ductility of masonry-infilled frames. These effects may cause damage of weak floor, torsional damage or short-column failure in structures. This article presents experiments of 1/2.5-scale steel reinforced recycled aggregates concrete (SRRC) frames. Three specimens, with different infill rates consisted of recycled concrete hollow bricks (RCB), were subjected to static cyclic loads. Test phenomena, hysteretic curves and stiffness degradation of the composite structure were analyzed. Furthermore, effects of axial load ratio, aspect ratio, infill thickness and steel ratio on the share of horizontal force supported by the frame and the infill were obtained in the numerical example.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.11a
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• pp.137-138
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• 2013

Nowadays, research about using recycled aggregate as alkali activator has been investigated. By the mechanism of Alkali activation, blast furnace slag's potential hydraulis property would be activated. Thee application of this technique is considered as fit for low strength concrete, so it's suitable in concrete secondary production such as bricks and blocks. Aside alkali activator, sulfate could also activate blast furnace slag's potential hydranlis property. In this research, gypsum(CaSO4·2H2O)has been added with blast furnace slag. Fundamental experiment such as flow and strength has been tested to evalnate effect of gypsum's activation property.