• Korean Institute of Interior Design Journal
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• no.17
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• pp.37-44
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• 1998

Chair is one of objects which are closely connected with human body and is a symbol which represents human essence and culture. Symbolism embodies the meaning of expression through transfering the immaterial structure to tangible form. Therefore chair embodies the essential internal desires of human by means of its symbolic representation. In order to understand the essential human desires included in the symbolism of chair it is necessary to consider these desires with respect to cultural and historical context. in this study four essential internal desires of human are investigated through the symbolic representation of chair that is the desires on human psychological comfort authority freedom and eroticism. The purpose of this study is to emphasize the necessity of the design approach based on the understanding of essential internal desires of human which is pursued from the object by user.

• Parasites, Hosts and Diseases
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• v.53 no.5
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• pp.575-581
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• 2015

Malaria is a tropical disease caused by protozoans of the Plasmodium genus. Delayed diagnosis and misdiagnosis are strongly associated with higher mortality. In recent years, a greater importance is attributed to Plasmodium knowlesi, a species found mainly in Southeast Asia. Routine parasitological diagnostics are associated with certain limitations and difficulties in unambiguous determination of the parasite species based only on microscopic image. Recently, molecular techniques have been increasingly used for predictive diagnosis. The aim of the study is to draw attention to the risk of travelling to knowlesi malaria endemic areas and to raise awareness among personnel involved in the therapeutic process.

• Proceeding of EDISON Challenge
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• 2016.03a
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• pp.256-261
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• 2016

In this paper, Shape optimal design for a chair with 4 legs and 2 stretchers consisting of stainless steel was conducted. The shape was transformed by identifying stress and deformation for the part of leg and stretcher. In addition, load condition and mesh was designed using Hypermesh. The stress analysis was carried out using CSD_Elast that is one of EDISON program. In seat test, Maximum equivalent stress was showed at the contact part between seat and legs. As a result, a leg cross-section with rectangular and arch was designed. And optimal height of stretcher was found to reduce a deformation. Also, maximum deformation was reduced by designing a stretcher with ellipse cross-section. So, Optimal chair having 4 legs with rectangular cross section and 2 stretchers with ellipse cross section was shown to satisfy the safety ratio.

• Journal of Drive and Control
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• v.20 no.1
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• pp.27-33
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• 2023

From the perspective of dental chair manufacturers, it is important to of localizing hydraulic system in order to secure market competitiveness. This study aims to develop the analysis model of a dental chair which overseas companies secure core technologies. The study follows the steps below. First, the component parts of the solenoid valve unit of a foreign leading company are analyzed and implemented in virtual environment. Second, dynamic behavior scenario is established based on solenoid valve signal chart provided by a foreign leading company. The analysis model is verified and its performance is analyzed using dynamic behavior according to each scenario. Third, a simulation is carried out to determine whether the cylinder velocity of designed hydraulic system surpasses 1cm/s as required by the design.

• 한국정보디스플레이학회:학술대회논문집
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• 2006.08a
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• pp.403-408
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• 2006

We have developed a four mask LTPS TFT p-channel process and fabricated active matrix backplanes based on a pixel circuit with three TFTs and one storage capacitor. Top emitting AMOLED displays have been produced to prove the working principle of the active matrix.

• Journal of the Korean Chemical Society
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• v.10 no.3
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• pp.129-132
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• 1966

It is known that almost all cyclohexane molecules are chair form in liquid state. Therefore, only chair form is considered in formulating the partition function for liquid cyclohexane, according to the Transient State Theory of Significant Liquid Structure proposed by Pak, Ahn and Chang. The thermodynamic quantities such as molar volume, vapor pressure, entropy of vaporization and compressibility of the liquid are calculated. The results are in good agreement with experimental values.

• Journal of the Ergonomics Society of Korea
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• v.28 no.4
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• pp.161-166
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• 2009

Although the entrance of house has been identified as a hotspot for older adults' fall accidents, there was not any lift chair to prevent older adults' accidents. In this study, a lift chair was developed to reduce fall accidents that can occur when older adults put on or take off their shoes in the entrance. In order to develop the product, we considered two aspects. Firstly, we considered older adults' anthropometric data to determine the design specification of the product. Also we considered the environmental characteristics of space using the product. In order to overcome the limited spatial freedom and use the entrance space effectively, we took a simplified and folding type for the product.

• Journal of Korea Game Society
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• v.10 no.6
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• pp.47-55
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• 2010

In this research, a chair type game controller has been developed. We implement pressure sensors on a chair so that user's whole body movements can be signalized. The signals linked to a game system. This process occurs a meaningful exercise effect. Because users can play exergame setting on the chair type game controller, it is reduces risk of physical injury such as falling down and the Joint pressure compared existing exergame controllers. Based on the advantages of seating, elderly and obese can be provided appropriate exergame.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1747-1755
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• 2008

In domestic interurban railway which runs between miles away city has foot rest for each chair. One of the interurban train Muunghwa, the chair can rotate in each direction. When chair rotates the foot rest gets damaged related to the position. Up to now many various solution was made to clear this problem but effect was insufficient. So solve this problem, approach was made in human body engineering point of view. Also Advanced country case study was made. Through this research the field point of issue will be cleared and so as customer satisfaction. This paper describes the effective methode to improve the foot rest damage problem.

• Proceedings of the KSR Conference
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• 2005.05a
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• pp.231-236
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• 2005

As number of old and handicapped passengers is increasing in an aging society, it is becoming more and more important to provide safe and convenient subway interior design and direction. In this research, we study basic indispensable conditions for subway chair and propose a chair design direction for old and handicapped people considering their use. In this study, we elicit the rational result based on analysis of Seoul subway design direction. This study should be expanded into universal design for not only old people but also pregnant people and children. The chair for old people is needed to have side partitions and a safety bar for safe walking and to be made of soft materials which has some cushion.