• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2008.04a
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• pp.861-862
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• 2008

One of trend of portable devices is convergence with other devices, especially with navigation system. This converged system is generally called PND (Personal Navigation Device). This detachable device is developed for personal entertainment in everyday life and navigation system when deriving, so it should meet the specification of vehicle thermal environment, anti-vibration as well as the anti-shock by sudden drop. In this paper, the way to design the hard disk drive damper with CAE, is introduced to get a reliable system from the beginning of the design step.

• Geomechanics and Engineering
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• v.16 no.2
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• pp.187-194
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• 2018

Application the pile group foundation to reduce overall settlement of the foundation and also avoid a very fruitful settlement of foundations, inconsistent was carried out. In such a case, in event that the Foundation, not as a mere pile group, which as a system consisting of a broad foundation with pile Group, economic design criteria will be provided in spite of high safety. A new approach in the design of the Foundation can be introduced as the piles are just a tool to improve the parameters of soil hardness; that it can work with detachable piles from raft. Centralized arrangement of piles as the most optimal layout of piles in reducing inconsistent settlement, which is the lowest value of resulting layout in this differential settlement. Using the combination of piles connected and disconnected to form the raft, bending moment created in the raft is reduced. It also concentrated arrangements have greatest effect in reducing amount of moment applied to the raft.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.10a
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• pp.548-553
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• 2002

Most tasks of the large vertical or ceiling structures have been carried out by human power. Those tasks require us much operation costs and times, safety devices, etc. So the need of automation for those tasks have been rising. That automation needs a wall-climbing mobile vehicle. Most former researches are things about attachment devices and moving mechanisms. A wall-climbing mobile vehicle must be designed by a method different from the case of the vehicle of the horizontal environment. That is because gravity acts as a negative role on the stability of a wall-climbing vehicle. In this thesis, the particular shape characteristics of a wall-climbing mobile vehicle are derived by the wall-environment modeling. In addition, some design constraints of the permanent magnetic wheel as an attachment device was studied. According to those requirements and constraints, one specific wall-climbing mobile vehicle was designed and some experiments were made on the attachment ability of that vehicle.

• Journal of the Korea Fashion and Costume Design Association
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• v.12 no.2
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• pp.41-54
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• 2010

This paper aims at studying about spatial structures and formative characteristics of Lucy Orta's fashion design. Her works utilizes the thought related on the architectural space that has been revealed sharp change of the paradigm since the late of 20th century. Lucy Orta against individualism of the urban life, and manufactures portable and moving housing and multi-functional fashion that is paved with individual rest unit and give a sense of security through simple combination among the units. Besides, she has development multiple portable clothing and equipments for the rescuethrough exploiting pioneering high technology. The results of this study can be summarized as the following: 1) refuge habitant creates individual space for physical and mental protection from the urban surrounding, 2) nomadic dwelling shows multi-functional fashion space fit for digital nomads' life style aims at continuous movement, 3) connective nexus and urban life guard are comprise of detachable individual unit in public space for remaking of the bonds, affinity, and relationship, and the complex of rescue clothing and equipments for meeting a challenge of the threat about human existence from uncertain environmental change in the future.

• Fashion & Textile Research Journal
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• v.22 no.5
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• pp.628-638
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• 2020

This study develops a cool-touch functional Dancesport top for middle-aged women by using cool-touch materials in areas where surface temperature becomes high after exercise. The post-exercise surface temperature of the developed research product was compared and analyzed. In addition, subjective evaluation of cool-touch as well as appearance and movement evaluations were performed. The results are as follows. In designing the research product, a detachable neckband was made using highly-preferred hydrated polymer crystals. A material with high moisture absorption speed was also used in F1, S1, under arm and B5, while a material with good thermal conductivity was used in other parts of the bodice. Deodorant tape with antibacterial and deodorant effects was incorporated in the armpit for additional comfort. As for wear evaluation of the research product, significant differences were found in 10 areas using a material with high moisture absorption speed to compare and analyze the post-exercise surface temperatures of the clothing. The temperature difference between the compared top and the research product in the neckband area was 9.16℃, demonstrating clear cool-touch function in using cool-touch material. In the subjective evaluation of cool-touch function, the results showed high scores when asked about the efficiency of the detachable neckband and the ease of movement when wearing the product. In the appearance evaluation, significant differences were found in 11 items, including redundant folds, tightfit, fit, and design line. The overall mean score of the movement evaluation was 4.6, indicating excellent function for movement.

• Journal of Fashion Business
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• v.15 no.4
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• pp.167-181
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• 2011

This study had researched purchase trend and preference of jacket design in order to develop a prototype of an outdoor wear jacket that can be worn for a light outdoor activity targeting middle-aged men and women. An outdoor wear was purchased mostly in a permanent discount store and functionality such as activity and material was considered as important in addition to design. There was difference in ages for the jacket style, but in general, people preferred a wind protection jacket and men preferred black colors and women preferred red colors. For the design of jacket, both men and women had preferred a jacket that has moderate fitness with detachable hat and a zipper, and it was applied to the prototype. The jacket had applied different color in the armhole line that is connected to sleeve in order to make waist look slimmer and stretchable material was used to improve functionality in the armpit part.

• Journal of the Korean Society of Costume
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• v.63 no.2
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• pp.68-81
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• 2013

The purpose of this study is the improvement of the senior patients' life quality by providing aesthetic and emotional stability by creating and providing a newly designed patient wear for them. Empirical research and analysis were done for the research. Survey from advanced research and clothing design for the senior citizens in Japan and German are analyzed. The result of this research extracted characteristics, which applied to the production of a severe senior patient wear. And the following characteristics emerged: affordability, comfort, aesthetics, and ease of putting on the clothes. To meet these conditions by the details of the clothing design, using fasteners like zippers and Velcro is useful. It is able to solve the problem of affordability making the vertically integrated overalls to be able being separated by zippers in order to reduce the volume of laundry. It was able to overcome the discomfort due to contamination of the feces through the use of the fasteners even though the importance of choosing the comfort material related closely to the comfort. Using material mixed with multiple colors, plaid or bright pink, instead of using neutral colors fulfilled the aesthetic requirement. In Particular, utilizing detachable function fasteners contributed great services.

• Journal of the Korea Fashion and Costume Design Association
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• v.11 no.2
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• pp.169-181
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• 2009

The purpose of this study was to provide basic information for developing a smart taekwondo uniform with enhanced functionality for children by investigating the wearing condition and satisfaction of taekwondo uniform among taekwondo training children. The data were collected from 162 children living in Seoul and Daegu. For data analysis were performed descriptive statistics, ${\chi}2$ -test and t-test using SPSS Ver. 12. The results of the analysis are as follows. The results revealed that respondents wearing the general training uniform during their training period were the most. The dissatisfaction for the general training uniform was a high price, lack of symbolic, lack of functionality in textiles, lack of variety in design and unfittness of size in order. The developed uniform can adjust the length using a zipper type fastener, and can be used in all seasons as the lining is detachable. It also uses nano-silver material, and soil release finish. It enhances the functionality of movement by treating with raglan sleeve and sleeve hem velcro tape, and designs the upper garment in the draping. Safety is improved through attaching GPS, and elastic material is mixed in the neckline for putting on and off easily. Piece of cloth is added inside the closing of the upper garment. Rings are made for fixing the taekwondo uniform belt. Pocket is designed in the lower garment and colors are multiplied.

• Ocean and Polar Research
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• v.26 no.2
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• pp.333-339
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• 2004

This paper is concerned with an experimental investigation about tractive performance of a tracked vehicle on extremely soft soil. A tracked vehicle model with principal dimensions of $0.9\;m(L)\;{\times}\;0.75\;m(B)\;{\times}\;0.4\;m(H)$ and the weight of 167 kg was constructed with a pair of driving chain links driven by two AC-servo motors. The tracks are configured with detachable grousers with variable span. Deep seabed was simulated by means of bentonite-water mixture in a soil bin of $6.0\;m(L)\;{\times}\;3.7\;m(B)\;{\times}\;0.7\;m(H)$. Slip of vehicle and driving torque of motor were measured with respect to experimental variables; grouser span, grouser chevron angle, driving speed, drawbar-pull weight, position of center-of-gravity and weight. $L_8$ orthogonal array is adopted for DOE (Design Of Experiment). The effects of experiment variables on traction performance are evaluated.

• Journal of the Korea Convergence Society
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• v.11 no.7
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• pp.105-112
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• 2020

This paper presents an investigation into the development of a fabric electronics based smart bag for festival users of the 2029 generation with customizable tech flaps (music media control/ LED animated graphic functions) based on the application of traditional Korean patterns and goblin patterns in an electric circuit. The investigator took into consideration functional and design strategies to enable custom service according to users' tastes and situations. Based on these considerations, a customizable smart bag platform was proposed in a detachable module based on a computer embroidery machine. The study is significant in that it developed a product that is different from the old PCB smart products in hard form and proposed a new business model.