• Journal of the Korean Society of Costume
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• v.62 no.4
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• pp.15-31
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• 2012

This study is intended to understand the styles, colors and color arrangements of costumes expressed on Kisan Kim Jun-geun's genre paintings of Joseon in the late 19th century. The paintings vary according to the status and gender of the person wearing the costume as well as the time period and different situations the person belongs to. Also, this study aims to examine the meaning and value of Kisan's paintings in terms of the history of Korean costumes. The result of this study are as follows: The basic and common attire for people of all status and class is the jeogori(jacket), baji(pants) for men and Banhoijang jeogori, chima(skirt) for women. Men wear Po(coat) that represents their status and age, and they put on various hats according to different weather conditions or work-skill even when in the same status and class. However, women wear the Baeja(vest), Durumagi(coat) and head-dresses when they are cold. Overall, the costume patterns and shapes that appear on Kisan's paintings show the same patterns and structures when compared to different data during the same time period. Thus, they provide useful information to help not only understand the changes of patterns and structures of costumes, but also the situations and emotions of the people of that time period. Moreover, it can be understood that various colors and color arrangements that reflect the situations and emotions of the late 19th century were used. This study that analyses the colors and color arrangements used in Kisan's genre paintings can provide the very basic and systematically arranged data to help understand the unique colors in Korea. These data can also provide important information to understand the use of dyes and pigments during that time. Therefore, Kisan's genre paintings are meaningful and valuable in terms of the history of Korean costumes for these are the data, from which we can review the costumes, colors and color arrangements in the years from 1890 to 1910.

• Journal of the Korean Society of Costume
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• v.57 no.6 s.115
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• pp.172-183
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• 2007

The purpose of this study is to examine the dress and its ornaments of low-level officials shown in Tamna-Sullyeokdo, the paintings of the inspection tour of Jeju Island. The low-level officials Include low-level soldiers-sungjungun, gichigun, foot soldiers, cavalries, gunroe, ilsu, artillerymen, najang, and sawon-, musicians, servants, and kisaengs in government employ. 1. Different types of low-level soldiers tended to wear different kinds of clothes that is worn under an outer garment and to wear different coats and trousers depending on an outer garment. That is, sungjunggun, gichigun, foot soldiers, and cavalries were jeonbok over a jeogori and baji. On the other hand, gunroe, ilsu, artillerymen, and najang were houi or jakui over a jeogori and baji. However, Sawon simply were Jeonbok or armer or they wore Cheolik in formal occasions. 2. Musicians wore a jeonlib, a type of hat, decorated with an ear of barley and a red houi over a Jungchimak, a man's outer coat with large sleeves. Musicians wore colorful red clothes in order to add to the amusement during military trainings or banquets. 3. Servants in government employ had their hair in plaits and wore a jeonbok over a Jungchimak or baji and jeogori. However, when they dance during banquets, they were cheolik and jeonlib decored with/without an ear of barley or red flowers. 4. Gisaengs in government employ wore a gache on their head and wonsam, a woman's full dress during big occasions. They, on the other hand, wore a jeogoli and chima for regular occasions.

• Proceedings of the Korean Vacuum Society Conference
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• 2011.08a
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• pp.189-189
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• 2011

인공관절은 노인성 질환이나 자가 면역질환, 신체적인 외상 등으로 인하여 발생하는 관절의 손상 부위를 대체하기 위해 고안된 관절의 인공 대용물이다. 인공 관절 중 인공 고관절의 경우 관절 운동을 하는 라이너(Liner)와 헤드(Head) 부분이 인공관절의 수명을 결정하게 되는데, 헤드 부분에 메탈소재와 라이너 부분에 고분자 소재를 사용하는 MOP (metal on polymer) 구조의 인공관절은 충격흡수의 장점이 있는 반면 wear debris에 의한 골용해로 인하여 관절이 느슨해지는 문제점이 발생하여 재 시술의 주요 원인이 되고 있다. 또한 메탈 헤드의 마모로 인한 금속이온의 용출은 세포 독성의 문제를 야기하여 인공관절의 수명을 낮추는 또 하나의 요인이 되고 있다. 따라서 인공관절의 수명을 늘리기 위해 DLC, ZrO, TiN 등의 높은 경도 값을 갖는 박막을 금속 헤드 위에 증착하여 상대재인 인공관절용 고분자 소재의 마모량을 줄이고자 하는 연구가 활발하게 진행 되고 있다. 본 연구에서는 PIII&D (Plasma Immersion Ion Implantation & Deposition)공정을 이용하여 Co-Cr-Mo 합금 소재 niobium nitride (NbN) 박막을 증착하여 상대제인 UHMWPE (ultra high molecular polyethylene)의 마모를 줄이고자 하는 연구를 진행하였다. 마모량을 감소시키기 위하여, 박막 증착전에 질소를 이온주입하는 pre-ion implantation 공정을 도입하였으며, 또한 Co-Cr 합금과 NbN박막 사이의 접착력을 증가시키기 위하여 박막의 증착 초기에 이온주입과 증착을 동시에 수행하는 dynamic ion mixing공정을 수행하였다. NbN 박막의 특성을 평가하기 위해 XRD, XPS, AFM 등의 분석을 수행하였으며, 상대재인 초고분자량 폴리에틸렌의 마모량을 측정하기 위해 Pin-on-disk tester를 이용하여 마모 실험을 진행하였다. 마모 실험 결과, pre-ion implantation 공정을 도입한 경우 현재 상용화 되어있는 Co-Cr 합금에 비하여 마모량을 2배 이상 감소시키는 것을 확인 할 수 있었으며, dynamic ion mixing 공정을 도입한 경우 장시간의 마모 시험에 대한 마모 특성이 향상 되는 것을 확인 할 수 있었다.

• Journal of the Korean Society of Clothing and Textiles
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• v.40 no.6
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• pp.1085-1099
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• 2016

This article is designed to establish fundamental design criterion for theme park cast costumes in accordance with play type and space. There is an understanding that theme parks act as a play space that is designed to meet diverse playing desires. To analyze cast costumes, the theme park - 'Everland' in South Korea as an example, area was divided into attraction space and non-attraction space. Attraction space is mainly for full-scale play content areas and the non-attraction space is to enforce the attraction space experience. Roger Caillois's play theory states that there are 4 play types; Illinx, Mimicry, $Ag{\hat{o}}n$, and Alea. All 4 play types were shown through attraction and Mimicry at non-attraction. Each cast costume was analyzed in terms of apparel design elements - silhouette, textile, color, detail, and props - related to play type facility and cast role. Criteria for theme park cast costume designs were suggested based on the results. Illinx cast members who fulfill a safety-checking role wear high chroma warm color costumes with the accent on details in bodice cutting lines, collar edges, pockets, buttons and decorative ornaments. A complementary contrast is also used. The guidance cast in Illinx may wear a suit in bright/vivid color. Mimicry guidance cast costumes show meticulous perfection in imitation with the figure in its space. From head to toe, color, textile, and silhouette - every detail and even props should match the character. $Ag{\hat{o}}n$ cast costumes are strictly limited in detail and decorative ornament usage as well as in color, since they are in charge of the management and operation of a competition. Alea cast's role is a self-demonstrator. Alea cast members should be a real tarot card reader. However, a manual should control their costumes. A total of 10 cast roles at a non-attraction space should be designed to show job patterns clearly in accordance with the whole theme at the park.

• Korea Science and Art Forum
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• v.34
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• pp.251-262
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• 2018

The purpose of this study is to understand how wearable computing devices are designed and how to design them in a technology based wearable device design research. Research is premised on the consideration of producers and consumers. There is wearable computer of eyeglasses, watches, clothes, and so on. The user can always wear these products comfort and use as part of the body without any sense of discomfort, and the goal is to supplement or double the ability of the human being. It should be easy to use them convenient, wear comfortable, safe and sociable at any time. For the satisfaction these conditions, the wearable computing devices have several factors. There are technical performances, visual aesthetics, Human body system and devices communication and safety. Furthermore, these factors have to match to operating system, real-time operating system and applied software. To comprehend wearable computing devices should be offered the design of the both software and hardware designed.

• Tunnel and Underground Space
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• v.33 no.5
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• pp.425-434
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• 2023

To measure the wear amount of the TBM disk cutter in real time, it is important not only to automate the measurement using sensors, but also to stably transmit the measured data to the information processing system. In this study, we investigated the viability of utilizing Bluetooth Low Energy (BLE) technology to wirelessly transmit sensor data from the TBM cutter head to a receiver located at the chamber's rear. Through laboratory experiments, we analyzed the Received Signal Strength Index (RSSI) of the receiver considering various signal strength of the transmitter, separation distances between the transmitter and receiver and chamber fill materials. Our results demonstrate that wireless data transmission is feasible across all tested conditions when the transmitter signal strength is 0 dBm or higher.

• Journal of the Korean Society of Costume
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• v.60 no.3
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• pp.10-25
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• 2010

The culture of the play of Korean ancient times is well described in the mural painting of Goguryeo. The example is people appearing in the play painting of performance, dance, hunting, and acrobatics out of 20 mural painting of genre. Their costume is broadly classified into performance, dance, hunting, and acrobatic costume and can be subdivided according to the types of costume. First, the head gear of play costume reflected the formality and social conditions of play. In the performance and hunting costume, all performers wore gwanmo(official hats), which seemed to make it a rule to wear gwanmo. Gwanmo was borrowed intactly from Goguryeo without any changes or decorations, which showed that the status symbolism of head gear was applied intactly to play costume. Second, the play costume of Goguryeo enhanced efficiency by blending daily costume with elements and decorations needed for play performance. Specifically the change of length was prominent: the short sleeves of jeogori(traditional blouse), the long sleeves of dance costume, and fastening below the knee or putting into the long shoes to shorten the length of baji(traditional pants). Finally, as it is well known that there was some differences in the expression modes of daily clothes in Goguryeo between Tonggu and Pyeongyang. Similarly, play costume tried to change costume according to the subject of play but maintained the locality and peculiarity of Goguryeo costume. Although performance costume showed many local differences, it also had similarity and peculiarity. In dance costume, long sleeves and patterns which frequently appeared in the Tonggu area reappeared in the Pyeongyang.

• Journal of the Korean Society of Marine Environment & Safety
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• v.23 no.1
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• pp.104-111
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• 2017

This research focuses on simulation and visualization of flow field characteristics inside a centrifugal pump. The 3D numerical analysis was carried out by using a numerical CFD tool, addressing a Reynolds Average Navier-Stock code with a standard k-${\varepsilon}$ two-equation turbulence model. The simulation accounts for friction head loss due to rough walls at suction, impeller, discharge areas and volumetric head loss at impeller wear ring. A comparison of performance curves between simulation and experimentation is included, and it reveals a same trend of those results with a small difference of maximum 5 %. At best efficiency point, velocity vectors are smooth but it changes significantly under off-design point, a strong recirculation appears at the outlet of impeller passages near tongue area. A relatively uniform preassure distribution was observed around the impeller in despite of the tongue. Within the volute, because of its geometry, spiral vortexes formed, proving that the flow field in this region was relatively turbulent and unsteady.

• Physical Therapy Korea
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• v.29 no.4
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• pp.255-261
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• 2022

Background: For the elderly, masticatory function is one of the most important oral functions and the masticatory ability is related to the wearing of dentures. Many older people wear dentures for their masticatory function, but a significant number of older people who use dentures have found that they feel uncomfortable when performing their daily activities, such as performing masticating functions or talking. Objects: The purpose of this study is to investigate how the forward head posture (FHP), respiratory function and thickness of masseter (MS), and sternocleidomastoid (SCM) are affected by the presence or absence of dentures in the elderly, and what kind of correlation there is between these variables. Methods: The study was conducted on 11 patients in the normal group and 13 in the denture group. The participant's cognitive ability was evaluated using Mini-Mental State Examination Korean (MMSE-K), and the FHP was evaluated by measuring the craniovertebral angle (CVA). The thickness of the MS and SCM muscles were measured using ultrasound, and respiration was measured with a spirometry. As for the statistical method, the correlation of each variable was investigated using Spearman's correlation coefficient. Results: In the normal group, there was a significant correlation between forced vital capacity (FVC) and forced expiratory volume in 1 second (FEV1) (p < 0.001), and in the denture group, FVC and FEV1 (p < 0.001), maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) (p < 0.001), CVA and Lt. MS (p = 0.012). Conclusion: CVA and Lt. MS of the denture group have a high negative correlation, it is related that the thickness of MS may be thick when the elderly wearing dentures are FHP.

• Journal of TMJ Balancing Medicine
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• v.13 no.sup
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• pp.27-33
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• 2023

The purpose of this study is to describe the effects of temporomandibular joint balancing therapy on a patient with a spinal accessory neuropathy. A patient reported sternocleidomastoid muscle and trapezius muscle weakness after self-massage. The patient was instructed to wear the Accurate Balancing Appliance (ABA) for at least 8 hours per day and maintain an upright posture. The patient received cervical spine manipulation on day 2, 4, and 6. The patient's progress was tracked based on the angle at which the head turned to the right from the midline when she lifted her head while lying down, as well as the muscle strength and pain in the right trapezius muscle. The patient recovered spontaneously after 7 days. The ABA and cervical spine manipulation assisted the patient in reducing fatigue and discomfort during daily activities.