• Transactions of the Korean Society of Automotive Engineers
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• v.9 no.3
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• pp.108-120
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• 2001

In this paper, the braking performance considering the dynamic weight is analyzed about the tractor-semitrailer vehicle. The basic brake performance, the parking brake performance, the emergency brake performance and the locking point deceleration etc. are to be calculated for the brake system design of the tractor-semitrailer vehicle. This braking performance is related to traffic regulations and braking characteristics according to the vehicle deceleration, the tire-road friction coefficient and specifications of the air brake system. The design program for the braking performance based on various design variables of the vehicle and the air brake system is developed integrating the analysis functions. This design program is developed by an object oriented programming method that is windows based. GUI (Graphic User Interface) function and the convenience of operating are greatly considered.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.2D
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• pp.175-181
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• 2009

Korean government has developed the 1st version of the National ITS Architecture in 1999 and utilized it as the framework for ITS planning, design, and standardization. The National Architecture now needs to be revised to accommodate environmental changes in ITS market and advancement of ITS core technologies. This study evaluates the current version of the architecture and suggests the directions for revision for a new national ITS architecture. The two most popular methodologies for architecture development-the process-oriented approach and the object-oriented approach-were reviewed, and the process-oriented approach was selected for new architecture development. The concept of the national architecture was then newly defined based on evaluation of the existing architecture. The new National ITS Architecture is suggested to be composed of ITS user services, logical architecture, physical architecture, and project architecture. This study must be followed by actual architecture development efforts and supporting policy actions for successful deployment of the new National ITS Architecture.

• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.741-746
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• 2006

Future space is currently getting a great deal of attention to apply ubiquitous computing technology. At the same time, various ubiquitous technology-based products are being developed with service scenarios in the views of diverse user groups predicted. Since these service models and scenarios need to be tested to verify effectiveness, it requires researchers to predict spatial shapes and service scenarios for future domestic environment that fulfills diverse future spatial requirements including ecological and user-oriented spaces, extended amenity getting maximum benefits from technology, etc. To support these developments, the need to make a physical test-bed, a real building model, is essential. However building a physical test-bed generally is economically expensive and even if the test-bed could be settled, it must be carefully designed before it is built In this paper, we suggest a virtual smart test-bed, called "V-PlaceLab", using virtual reality techniques. This system allows not only to inspect a scenario with the aid of computer simulation on a virtual environment, but also to design a virtual test-bed mentioned above.

• Korean Institute of Interior Design Journal
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• v.24 no.4
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• pp.152-160
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• 2015

This paper proposes high quality of healthcare environments for a user-oriented children's hospital by identifying the user needs according to residential characteristics of the child, especially the hospitalization period. Caregivers, mostly parents of children in a children's hospital, participated in a questionnaire survey. The user's demands, satisfaction and hospital environment assessment were measured. A total of 103 copies of the questionnaire were finally collected and analyzed. The data was processed statistically using SPSS WIN 18.0 Version software. The results and conclusions are as follows. 1)The participants were categorized into three groups according to the hospitalization period of the child (less than 7 days, 7-20 days, and more than 21 days). 2)When the patients stayed longer in the hospital, their satisfaction was lower and their demands were higher. The long-term group required a more spacious bathroom for the child inpatients and their caregivers as well as sufficient individual storage spaces that are appropriate for the length of stay. 3)The longer they were hospitalized, the more negative they evaluated the hospital environment. These results suggest that the period of hospitalization is one of the crucial factors that impact the user's satisfaction and demands. Therefore, it is necessary to identify the design factors such as territoriality, privacy, accessability, and aesthetics to improve the satisfaction of the long-term child inpatients and their caregivers.

• Journal of Digital Convergence
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• v.17 no.7
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• pp.293-298
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• 2019

This study is a user experience study based on location branding at mobile experience stores. As mobile devices have recently become saturated beyond the penetration, the IT industry is encouraging users to buy through experience and can be competitive by increasing brand loyalty through experience stores. The purpose of this study is to analyze the effect of place branding among experience stores through qualitative and quantitative measurements and analyze the user experience factors related to the location branding to present a future direction. A total of eight subjects were given tasks and then experimented with participatory observations and conducted in-depth interviews. The experiment showed that the experience had a significant effect on users, but the difference between each brand was obvious. Since this study has identified the experience-oriented elements, we expect to provide better service and experience for future users.

• Journal of Korea Multimedia Society
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• v.2 no.4
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• pp.476-489
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• 1999

HW/SW codesign is integrated design of systems implemented using both hardware and software components. Many design tools has been developed to support this new paradigm, so far. Current codesign tools are not widely used as been expected because of variety problems - rapidly evolving technology, platform dependency, absence of standard specification method, inconsistent user interface, varying target system, different functionality In this paper, we propose a web-based distributed HW/SW codesign environment to remedy this kinds of problem. Our codesign environment has object-based 3 tier client/server architecture. It supports collaborative workspace through session service. Fully object-oriented design of user interface(OOUI) enables easy extension without change of user Interface. Furthermore it contains transaction server and security server for efficient and safe transfer of design data. To show a validity of our design, we developed prototype of web-based HW/SW codesign environment called WebCEDA. Our model of HW/SW codesign can be used for web-based generic CAD tools.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.25 no.6A
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• pp.848-854
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• 2000

Network management in TMN concerns to the operating system and communication equipments in network, and defines them as objects. GDMO(guidelines for the Definition of Managed Objects) is used to describe those objects. GDMO is not directly used for managing the network, but translated into a language with object-oriented paradigm. And GDMO refers to ASN.1(Abstract Syntax Notation One) for manage objects. This paper presents design and implementation techniques for the translator which automatically translates the specification of ASN.1 and GDMO to the object-oriented language for generating MIB(Managed object Instance Base). This system, unlike the existing source code generator, is designed to generate various object-oriented languages automatically, which are used to generate Managed object Instance Base(MIB). And the system includes various graphic user interface to enhance the development environment of ASn.1 and GDMO

• Transactions of the Korean Society of Mechanical Engineers A
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• v.27 no.10
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• pp.1644-1652
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• 2003

The monitor product is packed by cushioning materials because the monitor can be broken during transportation. However, the addition of the cushioning material increased the volume of the product. Therefore, it is required that the usage of cushioning material be minimized. In practice, design engineers have followed the ad hoc design with experiences of predecessors. Automation of the design process is very important for the reduction of engineering cost, and can be achieved by an excellent design process and software development. According to Axiomatic design, a design flow is defined and a software system is developed for automated design. At first, a basic model is defined. A user can modify the model from menus and design is carried out according to the input from the user. Finite element models are automatically generated based on the design. A nonlinear finite element analysis program called LS/DYNA3D is linked for the impact analysis. The process of Design of Experiments using orthogonal array is installed to minimize the maximum acceleration in drop test. Therefore, a new design can be proposed by the system. The program is designed according to the Independence Axiom of Axiomatic design. FRs and DPs of the software system are defined and decomposed by zigzagging process. Independent modules can be generated by analysis of the full design matrix and each module is coded as class in Object Oriented Programming (OOP). Design results are discussed.

• Korean Institute of Interior Design Journal
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• no.28
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• pp.117-123
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• 2001

In 1990s, interest on Environment has been increased and Environment-oriented consumer's economic power accelerated the trend of preference for 'Environment-friendly material'. Moreover, the concept of 'Sick Building' Syndrome has been spread to the public and solution for the syndrome is required. 'Environment-friendly material'means that the material used is not harmful for the user's health, and on top of that, causes least harm to the environment during production/scrap process of the material itself. Decision of designers and architectures, as a result, is really crucial tot he environment issues. Above all, selecting the most environment-friendly material and design among possible candidates is natural and cost saving way. In the paper, couple of Evaluation Criterium for Material Selection are analyzed and objective linkage has been identified. With the result of analysis, methodology to minimize damage on environment during whole life cycle of the Interior Design has been sought for.

• Architectural research
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• v.7 no.2
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• pp.1-11
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• 2005

When people encounter a new cultural housing setting, their housing attitudes are more changeable and complicated than when they enter a new housing environment in the same culture. The purpose of this study was to identify cultural impacts on housing attitudes, and to find the new design concepts based on the Koreans living experience in American apartments. Data were collected by the questionnaires of 125 Koreans who live in apartment houses in Pittsburgh. According to Korean common housing attitudes and transition by the time variable, the period of residence in the US, this research found that Korean residents' housing attitudes consist of unchanged cultural factors that have been the basic design concepts of Korean style apartments, changeable mixed factors that can be used to diversify Korean apartments, and changed desired factors that will be applied to new design concepts. Also, this research showed different housing attitudes by marital status and rent. This information may be helpful to Korean housing experts who have tried to improve apartments, and it is possible that American professionals can provide more suitable housing to fit minorities' unique living patterns in America.