• 한국의류학회지
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• 제45권4호
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• pp.598-611
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• 2021

The purpose of this study was to investigate the necessary functions and areas of improvement in bras worn by patients during the initial three-month recovery period after a breast augmentation procedure, and a functional bra that fits properly was designed. In order to analyze the necessary functions, a bra was designed after relevant discussions with medical staff and patients who underwent breast augmentation surgeries and considering the advice from bra designers and clothing and textile experts. This bra was designed to protect the surgical scars and minimize the compression by inserting a nonwoven fabric into the shoulder and front parts. In addition, it was designed in a way that could fit the individual breast volume by using a mesh material partially on the upper side of the molded cups. Underwires that could support the breasts were inserted, and a detachable wire was used to suit the patient's needs and the diagnosis by the medical staff. As the bra designed in this study received excellent scores during the evaluation by research subjects and experts, it can be used for designing the prototype of a functional bra.

• 한국의류학회지
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• 제44권6호
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• pp.1224-1239
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• 2020

This study develops a wearable solar energy harvesting device that absorbs solar energy to generate and store power which can be used during outdoor activities by users even after dark. For this study, a prototype hat for outdoor activities at night was developed after the design of a solar energy harvesting generation, storage, and delivery system was designed that could store energy to light up LEDs. First, the main control board of the system was designed to integrate the charging function, the darkness detection circuit, the battery voltage sensing circuit, and the LED driving circuit in order to reduce bulkiness and minimize the connection structure. It was designed to increase convenience. Second, the system was designed as a wearable fashion product that connected each part with fiber bands and manufacturing it so as to be detachable from the hat. Third, charging and LED operation tests show that the battery is fully charged after 5 hours even in winter when the illuminance value is low. In addition, the LED operation experiment verified the effectiveness of a buffered system that could operate the LEDs for about 3 hours at night.

• 복식문화연구
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• 제30권6호
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• pp.814-827
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• 2022

This study examines the social and artistic aspects of the Netherlands in the 16th century, focusing on the paintings of Pieter Bruegel the Elder (1525-1569), a repre- sentative Dutch painter at that time. Also analyzed were the types and characteristics of each item of the male populace's and nobles' costumes at that point in the Renaissance. The results are as follows: most of the populace's chemises do not have frills on the neckline and sleeves; the doublet has a loose body and sleeves overall; and the sleeves and armholes are fixed with sewing rather than being detachable, making the epaulet invisible. The neckline of the doublet usually does not have a collar, but it sometimes has a hood. In the case of trousers, most males are shown wearing waist-high stockings, and a piece of cord is visible. It seems that the populace's coats were mainly Spanish-style capes. The 16th-century Dutch populace's costumes are imitative-reflecting a desire to emulate the codpieces and hairstyles of the aristocrats-while providing individuality through hats and belts. In terms of practicality, it appears that a knife and pouch were used in various living environments. This trend can be seen as a reflection of populace's perception of the costume at the time.

• 산업경영시스템학회지
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• 제46권3호
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• pp.101-108
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• 2023

Although the proportion of coal-fired power generation is decreasing, efficient operating technology is needed to continuously invest in facilities and reduce maintenance costs until it is abolished. Boilers, one of the main facilities of power plants, operate for a long time in harsh environments of high temperature and high pressure. In addition, damage due to deterioration is likely to occur depending on the fuel and tube material used. It is very important to judge soundness because damage caused by deterioration adversely affects facility operation. Previously, replication method was used to analyze the progress of deterioration. In the replication method, pre-treatment such as chemical treatment is performed on the boiler tube in the field, the area is reproduced by attaching a film, and the replicated film is determined by an expert in the laboratory with an expensive microscope. However, this method involves substantial costs and time requirements, as well as the possibility of human errors. To address these issues, we developed a mobile health assessment system in this research. Since it is detachable and takes images in real time, this system enables swift evaluations across a broad range and facilitates the assessment of preprocessing quality. In addition, it was intended to reduce existing human mistakes by developing a degradation classification algorithm using the merger cluster method.

• 로봇학회논문지
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• 제19권1호
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• pp.58-64
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• 2024

The ability of the robot gripper to handle a wide range of objects significantly impacts its operational effectiveness. Among the robot grippers commonly used, the economically feasible choice is the relatively simple structure of a parallel gripper. To perform more densely packed tasks with a parallel gripper, it should be capable of handling small objects. Therefore, this study designs a parallel gripper mechanism equipped with assisting grippers to ensure smooth grasping of small objects. The parallel gripper is designed using a rack and pinion gear system, with two additional grippers on both side, and these assisting grippers are designed to be detachable. The two assisting grippers have different type of tip to grasp thin fabric shapes and thin stick shapes. The gripper prototype is used to verify the grasping capabilities for shapes achievable with a conventional parallel gripper and those intended for grasping with the assisting grippers through grasping experiments. Consequently, by equipping a conventional parallel gripper with assisting grippers as in this study, it becomes capable of handling a broader range of objects, in addition to its existing functionality.

• 한국의류학회지
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• 제38권6호
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• pp.845-856
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• 2014

This study focused on the production and usability evaluation of smart outdoor jackets that are designed to provide convenience to middle-aged people by embedding devices for lighting and location tracing. The results were as follows. 1. Jacket power supplier was a assembled system composed of battery, charger, controller and switch. A solar cell was attached on the upper arm, and a wire type EL on the center line of a raglan sleeve along with a GPS on the left sleeve with a transparent vinyl pocket. The total weight of the jacket embedded with devices was 385-520g. 2. Operation of function, activity, acceptability, safety, convenience for device use, appearance, practical maintenance were selected based on an analysis of evaluation criteria of previous smart wear research. Criteria were narrowed to three major categories of satisfaction, appearance and maintenance. 3. Use satisfaction criterion consisted of wearable device functionality and physical, psychological use convenience. The evaluation indicated actual functionality. EL functions were especially effective and necessary. Convenience of use showed that a smart jacket was thought to be safe and the size was moderate regardless of age and gender. Outer appearance was satisfactory and respondents praised the color. The practical maintenance evaluation indicated that there was no challenge in doing the laundry since the solar battery and GPS were detachable. The practical use of smart outdoor jackets confirmed by fabric that was washable and dried quickly.

• 한국실내디자인학회논문집
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• 제20권6호
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• pp.311-320
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• 2011

Public libraries in Korea have undergone changes from libraries for just reading or keeping books to libraries with cultural facilities that provide information through various media. It was because of the "plan for building the information-oriented library" in 2000 that made the complexation of public library in progress. The alterations of the system have changed the structure as well as the grade ranks but haven't been considered enough for administrators or visitors. Hereupon, we are to study of the features by analyzing how the application of the system changed the structure of library. There are four stages in research methods. First, concept of public library and functional elements requested in the process of complexation were studied from literature. Second, vertical, horizontal and circulate changes were studied by applying subject libraries into prior research stereotyping the libraries. Third, mutual relations between each place were studied through J-Graph by elements. Lastly, rank changes according to centrality of space and users were quantitatively studied with space syntax. 4 notable changes were found in these analyses. (1)Vertical, horizontal and circulate structure of public libraries were homogenized. Since 2001, however, they have become diversified as all-in-one or detachable. (2)The space structure of library before 2001 was shallow tree shape while in 2001, period of transition, was the tree shape mixed with ring shape. As time goes on, it has become shallow tree shape again but connected by ring shape in part of reading and common space and in digital reference room. (3)Digital reference room was center of the space around 2001 and it ranked top for integration. After 2007, however, it has become setting off-center. (4)About the purpose of using public libraries, using it as space for administrators ranked top followed by space for visitors and common space before. For now, common space ranks top and space for visitors and administrators. 5 subject public libraries were selected respectively before and after 2001.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제15권2호
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• pp.100-104
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• 1993

저자들은 두개저 골절을 동반하지 않은 단순 안면골 골절환자에서 본과에서 안면골 정복 수술후 발현한 외상성 경동맥해변동루 환자를 신경외과에 의뢰하여 분리풍선술식으로 처치한 후 현저한 임상적 증상의 개선을 가져왔고 12개월간 관찰시 다른 합병증도 유발되지 않았다. 외상성 경동맥해면동루는 두경부 손상시 매우 드물게 발생되는 심각한 합병증으로 임상증상의 복잡성 때문에 혼동하기 쉬으므로 Neurosurgeon과 협조하여 조기에 정확한 진단과 적절한 치료가 이루어지는 것이 바람직하다.

• 한국정보통신학회논문지
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• 제20권6호
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• pp.1136-1141
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• 2016

사물인터넷 기술은 지능형 정보처리를 필요로 하는 여러 융합 서비스의 주요 핵심 기술로 이용되고 있으며 그 중요성 또한 크게 부각되고 있다. 그리고 사물인터넷 인터랙션 디바이스를 통한 내부 네트워크 구축은 사물인터넷 디바이스를 효율적으로 연결 및 관리하며, 개방형 플랫폼과의 연동을 통해 다양한 서비스를 제공할 수 있게 한다. 특히, 저 전력 블루투스 기반 무선통신 장치인 비콘이 사물인터넷의 주요 핵심 기술로 주목받고 있다. 비콘 기술은 다양한 산업 분야에서 널리 활용되고 있으며, 최근에는 기본 기능을 넘어 특정 환경과 조건에서 사용하고자 하는 수요가 많이 늘어나고 있다. 본 논문에서는 이러한 비콘 기술과 관련하여 가속도 센서와 홀 센서를 활용한 비콘 디바이스를 제안한다. 제안한 비콘 디바이스는 센서를 통한 이동 감지를 통해 특정 상황에서의 제어가 가능하다. 아울러, 탈부착 형태의 편리한 설치, 센서를 연동한 최적화 관리 등 다양한 공장 환경에 적용이 가능할 수 있을 것으로 기대한다.

• 한국해양공학회지
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• 제33권6호
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• pp.597-606
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• 2019

Due to climate change, coastal areas are being flooded with torrential rain, typhoons, and tsunamis. In addition, non-point source pollutants (NPSs) that accumulated on the ground, streets, and buildings during the dry season are washed off by rain and stormwater runoff, which adds to the damage associated with environmental pollution, e.g., pollution that makes its way into the ocean. Recently, low impact development (LID) has been considered as a means of controlling water circulation and NPSs. In the coastal area, permeable blocks have been constructed mainly to reduce the flood damage caused by waves. Some important design factors that must be considered to ensure long-term performance are the permeability coefficient, clogging, and the efficiency of the removal of total suspended solids (TSS), but currently there are no standardized design criteria or testing techniques that are used worldwide. Herein, we analyzed the permeability coefficient and the TSS removal efficiency tendency according to the permeability area ratio with an easily-detachable, permeable block filled with calcinated yellow soils as the filter media. Our lab-scale tests indicated that, when the permeability area ratio was 25%, the reduction of the permeability coefficient after clogged was 11%, which was a significant decrease compared to other cases. Permeability persistence increased when the permeability area ratio increased from 50% to 75%. The TSS removal efficiency decreased as the permeability area ratio increased. Our pilot-scale test indicated that the TSS removal efficiency was more than 80% higher in all cases. We also found that the permeability persistence was excellent as the permeability area ratio increased, and, in actual construction, it is effective to set 5.3% of the total area as permeable area in terms of permeability and economic feasibility.