• Journal of the Korean Institute of Intelligent Systems
• /
• v.21 no.6
• /
• pp.718-723
• /
• 2011

In this paper, we propose a visual multi-touch air input device using vision cameras. The implemented device provides a barehanded interface which copes with the multi-touch operation. The proposed device is easy to apply to the real-time systems because of its low computational load and is cheaper than the existing methods using glove data or 3-dimensional data because any additional equipment is not required. To do this, first, we propose an image processing algorithm based on the HSV color model and the labeling from obtained images. Also, to improve the accuracy of the recognition of hand gestures, we propose a motion recognition algorithm based on the geometric feature points, the skeleton model, and the Kalman filter. Finally, the experiments show that the proposed device is applicable to remote controllers for video games, smart TVs and any computer applications.

• Journal of Environmental Health Sciences
• /
• v.39 no.1
• /
• pp.71-82
• /
• 2013

Objectives: This study was performed in order to investigate hand hygiene practices among food-service businesses employees based on the awareness of hand-washing and load of indicator bacteria on their hands. It focused on the comparison of full-time and part-time workers in food-service workplaces. Methods: A direct-interview questionnaire survey and microbiological analysis were carried out with sixty workers each. Samples for microbiological analysis were collected through a modified glove-juice method from the hands of the food-service workers and were analyzed for aerobic plate count, total coliform, fecal coliform, Escherichia coli, Staphylococcus aureus, and Salmonella spp. Microbiological analysis was done according to the Food Code of Korea. Results: Significant differences (p<0.01) were found in the survey between the full-time and part-time workers in hand-washing frequency, use of hand-washing agents, and hand-drying methods. More full-time workers responded to washing their hands after preparing food, after visiting outside, after handling raw materials, and before putting on gloves/when changing gloves than did part-time workers (p<0.05). No remarkable difference was found in bacterial load on the hands except in the aerobic plate count between the two groups. The detection of E. coli, S. aureus, and Salmonella spp. on the hands of some food-service workers in both groups revealed poor hand hygiene practices. Conclusions: The results of this study indicate that there is a need for training programs in order to improve hand hygiene practices and strict hand hygiene compliance by food-service workers.

• Archives of Craniofacial Surgery
• /
• v.19 no.3
• /
• pp.235-239
• /
• 2018

Intraoperative expansion has been used to cover small to large defects without disadvantages of the conventional tissue expanders. Various materials, for example, expanders and Foley catheters are being used. We introduce a new, convenient and economical device immediately available in the operating room, according to the defect size for intraoperative expansion, with latex gloves or balloons. The retrospective study was done with 20 patients who presented with skin and soft tissue defects. During the operation, expansion was done with latex gloves or balloons inflated with saline through an intravenous line and a three-way stopcock. After the inflation, the glove was removed and skin was covered with expanded tissue. A careful decision was made regarding the inflation volume and placement of the expander according to the defect size. There were no postoperative complications. The skin contracture and tension was minimal with a texture similar to the adjacent tissue. The new intraoperative expansion devices with latex gloves and balloons were cheap and made easily right in the operation room. The reconstruction of small to large sized skin defects can be done successfully, functionally and aesthetically without using expensive commercial materials.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2011.10a
• /
• pp.858-861
• /
• 2011

In this paper, we present a RFID system by using a wireless sensor network. The proposed system is installed in glove for activity monitoring. The RFID reader, to send data by using sensor network platform and RFID tag are small size, the shape of quadrangle, and operate in the frequency of 13.56 MHz. The sensor node can read RFID tags on the various objects used in daily living such as furniture, medicines, and kitchenwares. The sensor node reads the data of RFID tags, it transmits wireless packets to the sink node. The sink node sends the received packet immediately to a server system. The data from each RFID system is collected into a database, and then the data are processed to visualize the measurement of daily living activities of users. We provide a web-based monitoring system, and can see the number of RFID tag readings per day as bar charts. The result of experiments demonstrates that the way we propose can help to check the situation of life for people who live alone.

• Archives of Plastic Surgery
• /
• v.34 no.2
• /
• pp.274-277
• /
• 2007

Purpose: Microsuturing is a difficult job for beginners of microsurgery. It is because they are not familiar with microscopic environment and, it needs much time for them to get used to microanastomosis. Before the real microsurgery, sometimes a surgeon wants rehearsal. But, microsurgical exercise has been performed with surgical glove, silastic drain or rat femoral artery. Rat femoral artery is a very good training material. But, it needs animal laboratory, anesthesia and its keeping facilities. And the surgeon should appoint the time to exercise with the laboratory. Methods: We used chicken wing brachial artery for education material of microsuturing. The artery is 5 cm long and the diameter is about 1 mm. Monofilament 10-0 was used for suture material. Results: Six persons of Seoul National University medical school students and one resident attended in this program. Each of them performed arterial anastomosis ten times. They were satisfied with chicken wing brachial artery for anastomosis training under the magnification environment. Conclusion: We think that chicken wing brachial artery is a very cheap and an effective training material for the beginners of microsurgery.

• Journal of the korean veterinary medical association
• /
• v.46 no.9
• /
• pp.816-821
• /
• 2010

일반적으로 알려져 있는 소에 있어서의 제각은 화학적인 소락제, 송아지 제각기 (tube calf dehorner), 전기인두, 톱 및 선거(線鋸; wire saw) 등을 이용하고 있으나, 제각 처치시 소에 많은 스트레스를 주고 있는 실정에 있다. 2001년도에 일본의 요우카이치시(四日市) 소재 냉동 및 냉장창고업을 하는 일신냉장고(주)에 근무하는 직원이 현내의 비육농장에서 제각하는 것을 보고, 생산자나 소비자로부터 이야기를 나누던 중, 점차적으로 소 사육농장에서 다두사육화가 되면서 우군 무리중에서 순위싸움으로 인해 외상을 입거나, 경쟁에 밀린 소는 사료를 제대로 먹지 못하여 스트레스를 받는 다는 것에 착안하여, 끝이 뾰쪽한 뿔에 복싱 글러브(boxing glove)와 같은 커버를 장착하면 제각을 하지 않고 소 본래의 자연체형을 유지한 체로 안심, 안전, 위험방지가 가능한 소의 뿔 커버를 연구개발하게 되었다. 최초로 제작된 소의 뿔 커버는 고무 특유의 수축작용을 이용해서 소의 뿔에 장착하였으나, 소의 큰 압력에 눌려 하루도 못가 각상피(角上皮)와 같이 탈락하였으며, 그 후 약 3년간은 실패를 거듭한 끝에 4년째인 2005년 봄에 의외의 장소에서 힌트를 얻었는 데, 귀가시 가족중 우연히 이가 빠졌는 것을 보고, 소의 각돌기(角突起)의 각첨부(角尖部)에 고정하는 방법을 생각하게 되었다. 연구를 시작하면서부터 NOSAI 수의사들, JA 동일본조합사료 수의사, 전농축산 서비스 등의 도움을 받았으며, 이후 오리온기업육성기술개발지원사업에 채택되어 4년여간의 연구를 한 끝에 약 30초의 부착시간이 걸리는 1회성의 영구적인 소의 뿔 커버를 특허개발(2005년)하여 2008년도부터 판매하기 시작하여 거세 화우, 교잡종 화우암소, 화우 암소 등에 일본 전역에서 보급되어 시술되고 있다. 최근 수개월전에 제가 아는 지인이 일본서 뿔 커버 2두분을 직접 구입하여 왔는 바, 직접 한우 경산우 암소 2두에 극히 간편하고 쉽게 시술하였기에 소개하여 도움을 주고 저 한다.

• Women's Health Nursing
• /
• v.4 no.1
• /
• pp.67-83
• /
• 1998

A quasi-experiment, repeated measures design with non-equivalent control group was used to test the influence of cold therapy on the perineal discomfort and the healing state of the postpartum women undergoing vaginal delivery with episiotomy. Experiment was carried out from July 28, through October 2, 1996 with 40 postpartum women conveniently sampled from one university hospital located in Seoul. The 40 postpartum women undergoing vaginal delivery with episiotomy were as signed to experimental and control groups evenly(20 each). The instrument of measurement of perineal discomfort was 0-10 rating scale that was made by researcher and that of perineal healing state was Davidson's REEDA tool. The perineal discomfort and the healing state level were measured before and after each treatment. The treatment using ice glove that was given for the only experimental group was carried out at three points ; as soon as returning to the recovery room, 3 hours after returning to the recovery room and 6 hours after returning to the recovery room. The data was analysed by using t-test, chi-square test to determine the similarity between experimental and control groups. The hypotheses were tested using repeated measures ANOVA. The results of this study are summarized as follows; 1. The first hypothesis that the perineal discomfort level of the experimental group will be significantly lower than that of the control group(df(1,38), F=24.12, p=.0001) was supported. 2. The second hypothesis that the perineal healing state of the experimental group wil be better than that of the control group(df(1,38), F=0.48, p=.49) was not supported. Based on the results of this study, could therapy was turned out to have significant effect on the perineal discomfort of the postpartum women undergoing vaginal delivery with episiotomy.

• FLOWER RESEARCH JOURNAL
• /
• v.16 no.4
• /
• pp.321-324
• /
• 2008

A new yellow graft cactus Gymnocalycium mihanovichii ${\times}$ marsoneri cv. 'Hangseong' was developed by the National Institute of Horticultural &Herbal Science, Rural Development Administration in 2005. 'Hangseong' was selected from a interspecific crossing between Gymnocalycium mihanovichii and G. marsoneri. In 1998, 2 lines of '9834024' and '9834036' were selected from a crossing between G. mihanovichii 'IG-124' and G. marsoneri 'IG-223'. The 2 lines were crossed between them. In 2001, progenies produced from a crossing of the 2 lines were nursed and, finally yellow colored 'Wonkyo G1-169' was selected through 3 times of characteristic trials. It was named as 'Hangseong' and applied for a variety protection. Characteristics of 'Hangseong' is as follows: The color of body and tubercles is yellow. The shape of glove is flat with 7 to 9 deep ribs. Spine is medium straight with long size and brown color. Growth is fast as to reach 49.5 mm in diameter at 10 month after planting. Propagation ability is good as to set as many as 7.2 tubercles. 'Hangseong' is suitable for export to European countries or America. Characteristics of the cultivar can be maintained by vegetative propagation.

• Journal of the Korea Society of Computer and Information
• /
• v.11 no.4 s.42
• /
• pp.127-135
• /
• 2006

In the existing education using the globe. teaching contents are very simple and the relationship among learning units lacks a little bit because teaching materials are composed individually with the globe. Therefore, in this study, we developed the education glove system based on multimedia that is closely connected with teaching materials and the globe. This system is composed of the globe device and the learning software based on computer control. The globe device rotates itself on its axis as the solar center, and provides more efficient and visual education environment to students through the link between computer and the globe. The learning software provides the multimedia contents such as parallax, climate, culture, and education information about each country, and this software also can simulate the revolution of the earth around the sun. The globe device can be operated in off-line without the computer link. This system was developed by the industry cooperation and was displayed in the principal exhibitions. We have obtained positive results through the exhibitions and will promote the product in the future.

• Current Photovoltaic Research
• /
• v.8 no.4
• /
• pp.107-113
• /
• 2020

Here we report the long-term stability of polymer:nonfullerene solar cells which were stored under dark and indoor light condition. The polymer:nonfullerene solar cells were fabricated using bulk heterojunction (BHJ) layers of poly[(2,6-(4,8-bis(5-(2-ethylhexyl) thiophen-2-yl)-benzo[1,2-b:4,5-b']dithiophene))-alt-(5,5-(1',3'-di-2-thienyl-5',7-bis(2-ethylhexyl)benzo[1',2'-c:4',5'-c']dithiophene-4,8-dione))] (PBDB-T) and 3,9-bis(6-methyl-2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2',3-d']-s-indaceno[1,2-b:5,6-b']dithiophene (IT-M). To investigate their long-term stability, the PBDB-T:IT-M solar cells were stored in an argon-filled glove box. One set of the fabricated solar cells was completely covered with an aluminum foil to prevent any effect of light, whereas another set was exposed to indoor light. The solar cells were subjected to a regular performance measurement for 40 weeks. Results revealed that the PBDB-T:IT-M solar cells underwent a gradual decay in performance irrespective of the storage condition. However, the PBDB-T:IT-M solar cells stored under indoor light condition exhibited relatively lower power conversion efficiency (PCE) than those stored under the dark. The inferior stability of the solar cells under indoor light was explained by the noticeably changed optical absorption spectra and dark spot generation, indicative of degradations in the BHJ layers.