• Journal of Korean Tunnelling and Underground Space Association
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• v.6 no.2
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• pp.129-139
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• 2004

The several assumptions and design parameters to determine the ventilation rate in tunnel ventilation system were examined. In longitudinal ventilating tunnel, the ventilation rate has been determined by the critical velocity above which the smoke propagation to the upstream of ventilating air is prevented. Based upon the examination of assumptions and experimental results, we suggested the improved method to determine the critical velocity. In transverse ventilating tunnel, we found that the ventilation rate has been determined in accordance with the custom rather than fire-smoke dynamics such as the critical velocity in the longitudinal ventilating tunnel. It is because the ventilation rate in the transverse ventilation system has been determined by considering only the ventilation of contaminant by vehicle. To improve the ventilation design parameters based upon the fire-smoke dynamics, we conducted model tunnel fire experiments. From the experimental results, smoke propagating distance and smoke filling were suggested as the design parameter to determine the ventilation rate in transverse ventilating tunnel. And tunnels in Europe designed by the custom is found to have the dangerous nature in view of fire safety.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.3A
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• pp.360-367
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• 2006

In this paper, we designed a digital codec of an RFID tag for EPC global generation 2 class 1. There are a large number of studies on RRD standard and anti-collision algorithm but few studies on the design of digital parts of the RFID tag itself. For this reason, we studied and designed the digital codec hardware for EPC global generation 2 class 1 tag. The purpose of this paper is not to improve former studies but to present the hardware architecture, an estimation of hardware size and power consumption of digital part of the RFID tag. Results are synthesized using Synopsys with a 0.35um standard cell library. The hardware size is estimated to be 111640 equivalent inverters and dynamic power is estimated to be 10.4uW. It can be improved through full-custom design, but we designed using a standard cell library because it is faster and more efficient in the verification and the estimation of the design.

• International Journal of Contents
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• v.10 no.2
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• pp.42-46
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• 2014

This study suggests a teaching-learning method to improve creative design abilities of students majoring in design. By suggesting a creative design-inducing (CDI) teaching-learning method process and a creative design-inducing (CDI) teaching-learning method, this study aims to expand creative thinking among students with the aim of producing produce creative output as well as improving the effectiveness of design teaching. It also presents a case of the teaching-learning method in a design-related department, the process of teaching where the new method is applied is also examined. The teaching method this study suggests has the following merits: First, it allows the teacher to use various tools depending on the creative thinking abilities of individuals. By providing students with custom-made teaching, the method motivates and focuses students during the lesson. Second, it is easier for students to generate creative ideas than with other teaching methods.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.10a
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• pp.938-941
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• 2002

Small and medium enterprises have various problems that is the distributed process state, the method of receipt from custom, documentation change and so on related to the existing product design process. For that reason they require systematic analysis and smooth progress f3r each product design process. The solution is in this issue development of design management system far collaborative engineering. The aim of this system is to analyze the wrong existing process and to standardize product design process. Since this system is a server on web based Database with web identification, the client can overcome the limit of time, place and resource duplication. As a result product design process gets the greatest of efficiency in the various aspects.

• The Research Journal of the Costume Culture
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• v.8 no.3
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• pp.339-348
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• 2000

The purpose of this research was to offer basic data for study of men's suits by investigating the buying conditions of men's suits. For data collection, a questionnaire was composed of a purchasing price, a purchasing place, the source of the information, the reason of the suit buying, a standard for choice, recognition of the ready-made suit's size and a number of suits they buy etc. The subjects of this research were male who aged 20∼59 and resided in Seoul and the capital region. The results of the research were summarized as the following : 1. Most of the men purchased a ready-made suit rather than a custom suit and a easy-order suit because of the convenience for buying. But the elder was tend to purchase a custom suit than the younger. And the reason of custom suit or easy-order suit buying was size for fitness. 2. It was usually done in a department store and an agency as a purchasing place. The men who resided in Seoul used a department store more than ones who resided in the capital region. Most of the men used bargain sale. The source of the information of suits came principally himself and a wife. Most of the men purchased the suits with their wives of themselves. The elder depended upon their wives for buying suit than the younger. The standards for buying the ready-made suit were color, style and price. The number of suit they buy in a year was 0.9 suits for S/F, 0.7 suits for winter, 0.4 suits for summer and 0.2 suits for combination. The main purchasing price was 150,000∼250,000 won. 3. Most of the consummer was to be satisfied a sense of wearing, color, design etc, but they ware not to be satisfied price, A/S, size etc for ready-made suits. And they usually didn't know the size of ready-made suits.

• Journal of the Korean Society of Costume
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• v.56 no.7 s.107
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• pp.1-17
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• 2006

This study purposed to examine Korean people's white clothes custom historically and to explain the aesthetic consciousness latent in the custom. Korean people preferred white clothes, even up to foreigners called them White-clad folk. Not only as in old historical literatures, but also in Soo-suh, Shin-Dang-suh including Sam-Kuk-Ji in China, white clothes were a real symbol to Korean people, ranging chronically far back to the age of ancient tribal countries, Sam-Kuk Period through Koryo Dynasty and even to modern age near the end of Chosun Dynasty, wearing with pleasure regardless of age, sex or social position. Even King himself in Koryo Dynasty is said to have worn white clothes when he was out of official hours. During the Koryo and Chosun Dynasty, white clothes were sometimes prohibited for various reasons including conflicts with the theories of yin-yang and the five elements but such regulations were not effective. To Korean people, white clothes were ordinary people's everyday dress as well as noble people's plain suits, saints' uniforms with religious meanings, ceremonial costumes, funeral garments, etc. The various uses show that white clothes have been worn by many people. The unique custom that a People have worn white clothes consistently for such a long time may contain very deep symbolic meanings representing the people's sentiments and spirits. The present study understood that the meanings come from religious sacredness, magical wish for brightness, the pursuit of purity originating from the people's national traits, assimilation with nature and the will to attain whole ascetic personality. Aesthetic attitudes based on aesthetic values summed up as sacredness, brightness, purity, assimilation with nature, asceticism, etc. are the aesthetic consciousness pursued by Koreans through their white clothes. For Koreans, white color is the origin of their color sense coming from primitive religions such as worshipping the sun and the heaven. In this way, Korean people's preference for white clothes began with primitive religions, was mixed with various social, cultural and religious influences and finally was settled as their durable spirit, symbol and beauty.

• Journal of the Korean Society of Costume
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• v.53 no.1
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• pp.49-66
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• 2003

In the relationship between post-modern feminism and the body. the body of women, which has been taken as 'other' by dominant arguments, has escaped from the fixed idea at post-modern times and the post-modern feminists tried to escape from the taste of the times about body image that was prevalent in the former times.'The taste of the times' here means the fixed physical form of ideal women's body by the educational custom, and it includes the educational prescription which establishes the docile body of women. This kind of educational custom aims at the perfect and permanent restriction on size, shape, desire, attitude and movement as well as on the overall demeanor and each part of the body. And the custom produces 'dependent and trained'. that is, inferiorized women's body. Hence, this paper points out that the feminity as a fixed Physical form should be overcome in order to move forward, and as one part of the effort, it attempts to analyze the designs which deformed and distorted women's body in 1990s. This research indicates that the work, which tries to deviate the fantasized and casted women's mystery, has been closely connected with the expression of 'non-separate bodies' and 'irregular body shapes' in 1990s, which aims at escaping from the fixation of women's body Image. Therefore, it is concluded that the target design trend of this research, which expressed the deformation and perversion of the body, provides the anti-these against the ideal body image of women and the these of feminity. which have been reproduced in various methods and patterns throughout the public and the culture on the whole by expressing the refusal and deviation of the existing women's body image through the post-fixation of the body pattern.

• Physical Therapy Rehabilitation Science
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• v.8 no.4
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• pp.218-224
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• 2019

Objective: This reliability study examined the effects of applying varying induced inward pressures using a transducer placed at 0° neutral ankle position (NEU) and 15° ankle dorsiflexion (DF) on tibialis anterior (TA) muscle thickness using a custom-made device with a force indicator during rehabilitative ultrasound imaging. Design: Cross-sectional study. Methods: Twenty-four healthy subjects were recruited in this study. Two examiners measured the muscle thickness of the TA at 0° NEU and 15° DF in 3 conditions of inward pressures (1.0 N, 2.0 N, and 4.0 N) using a custom-made holder. The muscle thickness was measured three times for each of the conditions arranged in random order. For intra- and inter-rater reliability, the intraclass correlation coefficients (ICCs) with 95% confidence intervals, standard error of measurement, minimal detectable change, and coefficient of variation were analyzed. One-way repeated measures analysis of variance was conducted for investigating changes of TA muscle thickness according to the inward pressures of the transducers. Results: The intra-rater reliability of TA muscle thickness measurement was excellent (ICC_3,1: 0.92-0.96) for all conditions (at both ankle joint angles per varying inward pressure). Likewise, the inter-rater reliability of TA muscle thickness measurement was excellent (ICC_2,1: 0.89-0.97) under same conditions. The mean of TA thickness showed the trend of decreasing significantly with increased inward pressures at all ankle joint angles (p<0.05). Conclusions: Use of this custom-made device with a force indicator is useful to accomplish the high intra- and inter-rater reliability of TA muscle thickness measurement at both ankle joint angles in reducing the measurement error.

• The Journal of Advanced Prosthodontics
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• v.5 no.1
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• pp.21-28
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• 2013

PURPOSE. This study examined the effects of the abutment types and dynamic loading on the stability of implant prostheses with three types of implant abutments prepared using different fabrication methods by measuring removal torque both before and after dynamic loading. MATERIALS AND METHODS. Three groups of abutments were produced using different types of fabrication methods; stock abutment, gold cast abutment, and CAD/CAM custom abutment. A customized jig was fabricated to apply the load at $30^{\circ}$ to the long axis. The implant fixtures were fixed to the jig, and connected to the abutments with a 30 Ncm tightening torque. A sine curved dynamic load was applied for $10^5$ cycles between 25 and 250 N at 14 Hz. Removal torque before loading and after loading were evaluated. The SPSS was used for statistical analysis of the results. A Kruskal-Wallis test was performed to compare screw loosening between the abutment systems. A Wilcoxon signed-rank test was performed to compare screw loosening between before and after loading in each group (${\alpha}$=0.05). RESULTS. Removal torque value before loading and after loading was the highest in stock abutment, which was then followed by gold cast abutment and CAD/CAM custom abutment, but there were no significant differences. CONCLUSION. The abutment types did not have a significant influence on short term screw loosening. On the other hand, after $10^5$ cycles dynamic loading, CAD/CAM custom abutment affected the initial screw loosening, but stock abutment and gold cast abutment did not.

• International Journal of High-Rise Buildings
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• v.6 no.4
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• pp.307-313
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• 2017

This paper outlines the processes and strategies studied and selected by the team during the design stages of the project for the incorporation of BIPV into the tower's façade. The goal was to create a system that helps reduce internal heating and cooling loads while collecting energy through photovoltaic panels located throughout the building. The process used to develop this façade system can be broken down into three stages. 1. Concept: BIPV as design catalyst for a high-rise building. 2. Optimization: Balancing BIPV and Human comfort. 3. Integration: Incorporating BIPV into a custom curtain wall design. The FKI Project clearly illustrates the evolution building enclosures from simple wall systems to high performance integrated architectural and engineering design solutions. This design process and execution of this project represent the design philosophy of our firm.