• Title/Summary/Keyword: 영의 눈

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A Study on Development of On-line Condition Monitoring Program of a Turboshaft Engine (터보샤프트 엔진의 온라인 상태감시 프로그램 개발에 관한 연구)

  • Kong, Chang-Duk;Gu, Young-Joo;Kho, Seong-Hee;Ki, Ja-Young;Jun, Yong-Min
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2008.11a
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    • pp.163-166
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    • 2008
  • The helicopter flies at low level flight mode in its own operational range comparing to other aircraft categories. The low level flight means that the engine operates at variable atmospheric condition such as hot and cold temperature, snow, heavy rain, etc. Furthermore it may increase the entering possibility of engine foreign object damage particles like sand, dust, etc., i.e. this operating condition gives rise to damages of engine gas path components. An on-line condition monitoring program was developed by using SIMULINK, where measurement signals were simulated as an input module. The reliability and capability of the developed on-line condition monitoring were confirmed through application to a real helicopter engine health monitoring.

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The Architectural Features of French Picturesque Gardens and Fabriques in the 18th Century (18세기 프랑스 픽처레스크 정원과 파브리크 건축 특성)

  • Kim, Ran-Soo
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.8
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    • pp.81-88
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    • 2019
  • Although small but eye-catching outdoor constructions are generally called follies in contemporary architecture, French landscape researchers found different features of the fabrique, which they called separately from the folly. Unlike the 18th-century English gardens, in which the landscape itself was emphasized more than decorative structures in it, French fabriques actively made the atmosphere of picturesque gardens. In this background, this paper, from the architectural point of view, studied the 18th-century garden theories in both Britain and France, which might influence the formation of the fabrique. Then, it tried to analyze the features of French major picturesque gardens and their fabriques, relating them to painting, drama, and culture. In conclusion, this study, focusing on the relationship between the garden and its fabriques or follies, compared the different features between the English landscape gardens and the French picturesque ones in the 18th century.

Development of X-Band weather radar quality control technology for non-weather echo removal (비기상에코 제거를 위한 X-밴드 기상레이더 품질관리 기술 개발)

  • Jin-woo Park;Sun-Jin Mo;Ji-Young Gu;Seungwoo Lee
    • Proceedings of the Korea Water Resources Association Conference
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    • 2023.05a
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    • pp.114-114
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    • 2023
  • 기상레이더는 대류권의 기상 관측에 널리 사용되며, 기상예보를 비롯하여 항공, 농업, 수문학 등 다양한 분야에서 활용하고 있다. 기상레이더센터는 SSPA(Solid State Power Amplifier) 기반 X-Band 주파수대역(9GHz)을 사용하는 연구용 소형기상레이더 관측망을 운영하고 있다. 주로 수도권 저층 대기에서 발생하는 위험 기상현상을 1분 단위로 빠르게 관측하면서 정확한 강수 정보생산을 위한 연구를 수행하고 있다. 레이더 관측 자료는 전파를 이용하여 넓은 범위에 분포하는 눈, 비, 우박 등 대기수상체를 관측하여, 강수량 추정을 통해 강수 정보를 생산한다. 이에 따라 레이더 관측 자료의 정확성과 신뢰도를 높이기 위해서 레이더 품질관리 기술 적용은 필수적이다. 기상레이더센터는 소형기상레이더로 관측한 이중편파 자료의 효과적인 품질관리를 위한 각종 자료처리 모듈을 개발하여, 실시간 자료처리 프로그램에 적용하였다. 우선, 저층 대기 관측 시 기상에코와 더불어 강한 반사도로 나타나는 지형에코를 판별하는 모듈과 선형 또는 쐐기형태의 전파간섭에코를 비롯한 비기상에코를 효과적으로 제거하는 기술을 개발하였다. 다음으로, X-Band 주파수대역 기상레이더 관측 자료의 취약점인 강한 강수 시 발생하는 반사도 감쇠 현상을 보정하기 위한 기술도 개발하였다. 소형기상레이더 품질관리 개발과 적용을 통하여 생산된 자료는 HSR(Hybrid Surface Rainfall), 레이더 강수량 추정, 대기수상체 등 다양한 기상 산출물 생산과 동시에 기상 감시 및 연구 분야에 효과적으로 활용하고 있다.

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A Study on Jeong Su-yeong's Handscroll of a Sightseeing Trip to the Hangang and Imjingang Rivers through the Lens of Boating and Mountain Outings (선유(船遊)와 유산(遊山)으로 본 정수영(鄭遂榮)의 《한임강유람도권》 고찰)

  • Hahn, Sangyun
    • MISULJARYO - National Museum of Korea Art Journal
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    • v.96
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    • pp.89-122
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    • 2019
  • In this paper, I argue that the Handscroll of a Sightseeing Trip to the Hangang and Imjingang Rivers by Jeong Su-yeong (1743~1831, pseudonym: Jiwujae) is a record of his private journeys to several places on the outskirts of Hanyang (present-day Seoul) and that it successfully embodies the painter's subjective perspective while boating on these rivers and going on outings to nearby mountains. Around 1796, Jeong Su-yeong traveled to different places and documented his travels in this 16-meter-long handscroll. Several leaves of paper, each of which depicts a separate landscape, are pieced together to create this long handscroll. This indicates that the Handscroll of a Sightseeing Trip to the Hangang and Imjingang Rivers reflected the painter's personal subjective experiences as he went along his journey rather than simply depicts travel destinations. The Handscroll of a Sightseeing Trip to the Hangang and Imjingang Rivers features two types of travel: boating and mountain outings on foot. Traveling by boat takes up a large portion of the handscroll, which illustrates the channels of the Hangang and Imjingang Rivers. Mountain outings correspond to the sections describing the regions around Bukhansan, Gwanaksan, and Dobongsan Mountains. Jeong Su-yeong traveled to this wide span of places not just once, but several times. The fact that the Hangang River system are not presented in accordance with their actual locations shows that they were illustrated at different points. After visiting the riversides of the Hangang and Namhangang Rivers twice, Jeong Su-yeong delineated them in fourteen scenes. Among them, the first eight illustrate Jeong's initial trip by boat, while the other six scenes are vistas from his second trip. These fourteen scenes occupy half of this handscroll, indicating that the regions near the Hangang River are painted most frequently. The scenes of Jeong Su-yeong's first boating trip to the system of the Hangang River portray the landscapes that he personally witnessed rather than famous scenes. Some of the eight scenic views of Yeoju, including Yongmunsan Mountain, Cheongsimru Pavilion, and Silleuksa Temple, are included in this handscroll. However, Jeong noted spots that were not often painted and depicted them using an eye-level perspective uncommon for illustrating famous scenic locations. The scenes of Jeong's second boating trip include his friend's villa and a meeting with companions. Moreover, Cheongsimru Pavilion and Silleuksa Temple, which are depicted in the first boating trip, are illustrated again from different perspectives and in unique compositions. Jeong Su-yeong examined the same locations several times from different angles. A sense of realism is demonstrated in the scenes of Jeong's first and second boating trips to the channels of the Hangang River, which depict actual roads. Furthermore, viewers can easily follow the level gaze of Jeong from the boat. The scenes depicting the Imjingang River begin from spots near the Yeongpyeongcheon and Hantangang Rivers and end with places along the waterways of the Imjingang River. Here, diverse perspectives were applied, which is characteristic of Imjingang River scenes. Jeong Su-yeong employed a bird's-eye perspective to illustrate the flow of a waterway starting from the Yeongpyeongcheon River. He also used an eye-level perspective to highlight the rocks of Baegundam Pool. Thus, depending on what he wished to emphasize, Jeong applied different perspectives. Hwajeogyeon Pond located by the Hantangang River is illustrated from a bird's-eye perspective to present a panoramic view of the surroundings and rocks. Similarly, the scenery around Uhwajeong Pavilion by the Imjingang River are depicted from the same perspective. A worm's-eye view was selected for Samseongdae Cliff in Tosangun in the upper regions of the Imjingang River and for Nakhwaam Rock. The scenes of Jeong Su-yeong's mountain outings include pavilions and small temple mainly. In the case of Jaeganjeong Pavilion on Bukhansan Mountain, its actual location remains unidentified since the pavilion did not lead to the route of the boating trip to the system of the Hangang River and was separately depicted from other trips to the mountains. I speculate that Jaeganjeong Pavilion refers to a pavilion either in one of the nine valleys in Wooyi-dong at the foot of Bukhansan Mountain or in Songajang Villa. Since these two pavilions are situated in the valleys of Bukhansan Mountain, their descriptions in written texts are similar. As for Gwanaksan Mountain, Chwihyangjeong and Ilganjeong Pavilions as well as Geomjisan Mountain in the Bukhansan Mountain range are depicted. Ilganjeong Pavilion was a well-known site on Gwanaksan that belonged to Shin Wi. In this handscroll, however, Jeong Su-yeong recorded objective geographic information on the pavilion rather than relating it to Shin Wi. "Chwihyangjeong Pavilion" is presented within the walls, while "Geomjisan Mountain" is illustrated outside the walls. Handscroll of a Sightseeing Trip to the Hangang and Imjingang Rivers also includes two small temples, Mangwolam and Okcheonam, on Dobongsan Mountain. The actual locations of these are unknown today. Nevertheless, Gungojip (Anthology of Gungo) by Yim Cheonsang relates that they were sited on Dobongsan Mountain. Compared to other painters who stressed Dobong Seowon (a private Confucian academy) and Manjangbong Peak when depicting Dobongsan Mountain, Jeong Su-yeong highlighted these two small temples. Jeong placed Yeongsanjeon Hall and Cheonbong Stele in "Mangwolam small temple" and Daeungjeon Hall in front of "Okcheonam small temple." In addition to the buildings of the small temple, Jeong drew the peaks of Dobongsan Mountain without inscribing their names, which indicates that he intended the Dobongsan peaks as a background for the scenery. The Handscroll of a Sightseeing Trip to the Hangang and Imjingang Rivers is of great significance in that it embodies Jeong Su-yeong's personal perceptions of scenic spots on the outskirts of Hanyang and records his trips to these places.

The Relationship between Using Both Hands Keyboard Input and Hand Function Among the Lifestyles of University Student (대학생의 라이프스타일 중 양손사용 스마트폰 자판 입력과 손 기능과의 관계)

  • Bae, Seong-Hwan;Kang, Woo-Jin;Kim, Na-Yeong;Kim, Ji-Hyeon;Jo, June-Hyeok;Baek, Ji-Young
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.1
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    • pp.221-228
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    • 2021
  • This study aims to provide basic data for developing hand functional training programs using a keyboard to see if there is a relationship between the smart keyboard input speed using both hands, the Dexterity of the hand and the eye-hand coordination ability. The smartphone keyboard input speed, Purdue Pegboard, Grooved Pegboard Test, and Korean-Developmental-Test of Visual Perception-Adolescent were evaluated for 40 university students Province. An independent sample t-test and one-way ANOVA were conducted to identify differences in smartphone keyboard input speed, dexterity, eye-hand coordination ability and visual-motion using both hands according to the general characteristics of the subjects. Pearson correlation was also conducted to find out the relationship between hand-used smartphone keyboard input speed, hand dexterity, eye-hand coordination ability and visual-motor. As a result, the smartphone keyboard input speed using both hands showed a correlation with the dominant hand in the Purdue Pegboard Test (r=-.313, p<.05). In addition, the input speed of the smartphone keyboard is Copying(r=-.333, p<.05), Visual Motor Search(r=.455, p<.01), Visual Motor speed(r=-.453, p<.01) and Form Constancy (r=-.341, p<.05) in the item of K-DTVP-A. Therefore, it is believed that it will be helpful in the development of a treatment program using a smartphone, and it is expected that the effectiveness of a treatment program using a smartphone will be proven through additional experimental studies in the future.

Eye Irritation Test of Lens Washing Agents as ReNuTM (렌즈 보존액 ReNuTM에 대한 안점막자극시험)

  • Jang, Woo-Yeong;Lee, Jeong-Yeong;Joo, Kyung-Bok
    • Journal of Korean Ophthalmic Optics Society
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    • v.10 no.4
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    • pp.293-304
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    • 2005
  • As the eye irritant test of lens washing agent, ReNu$^{TM}$ was analysed using Draize methods (1959) according to KFDA Guidelines. In addition, to test the potential toxicity of test articles the ratio of inflammatory cells and non-inflammatory epitheloid cells were also observed using smear cytology methods against ocular discharge. At test, the histopathological changes on the cornea, iris, retina and sclera were also observed in all animals. Slight irritancy of the cornea and conjunctiva were observed at 1, 2 and 3 days after dropping in non-washing group. The Mean Index of Ocular Irritation(MIOI) of these points are detected as 4.17, 3.00 and 1.33, respectively. In washing group, slight irritancy of the cornea and conjunctiva were observed at 1 and 2 days after dropping with MIOI as 0.67 and 1.33, respectively. Therefore, ReNu$^{TM}$ was considered as non-irritating materials because the MIOI is detected below 5.00 throughout the whole experimental periods in both washing and non-washing groups. The Index of Acute Ocular Irritation(IAOI) is also detected as 4.17(1 day after dropping). Except of the somewhat increase trend of the inflammatory cell ratios in ocular discharge at 1 day after dropping of non-washing group, but significances are not detected, on the other hand, no meaningful changes on smear cytology of ocular discharges are observed in this study. In addition, no abnormal histopathological changes on the cornea, iris, retina and sclera were also not detected in ReNu$^{TM}$ dropping group compared to that of non-treated control eyes.

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Knowledge, Perception & Practice of Eye Care Nursing among Nurses in Intensive Care Units (중환자실 간호사들의 눈 간호에 대한 지식, 인식 및 수행 실태)

  • Oh, Eui-Geum;Chu, Sang-Hee;Ko, Il-Sun;Lee, Won-Hee;Yoo, Ji-Soo;Kim, So-Sun;Yoo, Hae-Young;Kang, Se-Won;Kim, Bok-Hee;Cho, Kyong-Mi;Choi, Jung-Min;Song, Eun-Kyeung
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.14 no.4
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    • pp.437-445
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    • 2007
  • Purpose: The purpose of this study was to identify levels of knowledge, perception, and practice of eye care as part of nursing care in the ICU. Method: A descriptive, cross-sectional study design was used. The participants in this study were 269 registered nurses working in the ICUs of five university hospitals in Seoul, Korea. Between November 2005 and December 2005, data were collected using a semi-structured questionnaire developed by the researchers, and analyzed using the SPSS Program. Results: In general, levels of knowledge of nursing care for the eyes were moderate among ICU nurses, but levels of perception of nursing care for the eyes were very high. Of the respondents, 61.7% reported that they would consult a doctor whenever they found an eye problem. Only 42.4% nurses answered that they provide eye care as part of the daily routine and 43.9% nurses responded that they cleanse the eye lids with wet saline gauze. In regression analysis, the practice of eye care as part of nursing was significantly influenced by perception of nursing care for the eyes, and knowledge of interventions for nursing care for the eyes. Conclusion: These results suggest that education on care of the eyes for ICU nurses and the development of a standardized eye care protocol should be done to improve quality of nursing care in the ICU.

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The Analysis of Middle Students' Conceptions on the Arrows Representing Reflection and Refraction in the Light Unit of Science Textbooks (빛 단원에서 반사와 굴절을 나타내는 화살표에 대한 중학생들의 개념 조사)

  • Song, Yong-Wook;Kim, Beom-Ki;Paik, Seoung-Hey;Kim, Yong-Jin;Han, Jaeyoung;Chung, Jung-In
    • Journal of Science Education
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    • v.34 no.1
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    • pp.72-83
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    • 2010
  • This study aims to analyze the types of arrows used on the inscriptions in the light unit of 7th grade science textbooks, and to investigate middle students' conceptions on the meaning of the arrows. The types of arrows in 9 science textbooks were analyzed. Based on this analysis, the instrument was developed to access how 7th graders perceive the meaning of arrows. In addition, we interviewed 7th graders, 2 students in high level, 2 in the middle, and 2 in low level by their achievement level, to investigate their perceptions on the meaning of the arrows. We analyzed 4 types of arrow by the process in which the reflected light from the object come into one's eyes. Students tend to perceive the meaning of the solid line and the dotted line of arrows differently according to their achievement level. When the light pathway is represented in which the reflected or refracted light enter into our eyes, it is necessary to describe and teach clearly both the meaning of solid line as the light from the object and the meaning of dotted line as the perception of the existence of the object.

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Case of Anterior Segment Ischemia after Two Vertical Rectus Muscles Surgery (두 개의 수직근수술 후 발생한 전안부허혈 1예)

  • Ahn, Jayoung;Kim, Gyu Nam;Kim, Seong Jae;Chung, In Young;Seo, Seong Wook;Yoo, Ji Myong
    • Journal of The Korean Ophthalmological Society
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    • v.59 no.12
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    • pp.1195-1200
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    • 2018
  • Purpose: To report a case of anterior segment ischemia after superior and inferior rectus muscle surgery in a patient with superior rectus muscle enlargement. This is the first report in the Republic of Korea of anterior segment ischemia after two rectus muscles surgery. Case summary: An 80-year-old male was referred to our clinic with a 3 years history of diplopia. The patient had 30 prism diopters right eye hypertropia in the primary position and downgaze limitation. The orbital computed tomography scan revealed enlargement of the right superior rectus muscle. He underwent right superior rectus recession and inferior rectus resection. On postoperative day 2, slit lamp examination revealed diffuse corneal edema, Descemet's membrane folding, an aqueous flare and a dilated pupil. Treatment with 45 mg oral steroid was initiated, and 1% prednisolone acetate and 0.5% Levofloxacin eye drops were administered. At postoperative 1 month, the patient was orthophoric in the primary position, and there was no corneal edema, pupil abnormality or aqueous flare. Conclusions: Base on the present case, the possibility of anterior segment ischemia should be considered after even two muscles surgery, and older patients with vertical muscle surgery should be considered more carefully.

A Study on The migwang color contact lens for dryness and indications (미광 칼라 C/L에 대한 건조감 및 렌즈 적응증에 대한 연구)

  • Jang, Woo-Yeong;Park, Jeong-Sik;Lee, Jeung-Young
    • Journal of the Korea society of information convergence
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    • v.5 no.2
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    • pp.77-83
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    • 2012
  • This study was cosmetic contact lens wear for up to 2 weeks in for the evaluation of the insertion. In 1 week during weeks 1 and 2 has been rated 'positive' or 'insert' easy insertion and removal of lenses in the mirror when I saw the 'red eye' negative 'rating in 18 patients (45 %), in 2 shown in 14 patients (35%) as a 'negative' rating over time, depending on the awareness hyperemia has been reduced could see. Future lens purchases from doctors' Week 1 at the 2nd week, came as a result of the positive> negative evaluation was positive = negative. Rating, but usually more than 1 week, 2 weeks, 26 patients (65%) showed no change. State upon insertion of sight, wearing period increased dryness and showed a more positive assessment, the Comfort showed similar ratings. Somewhat negative assessment upon removal of vision status, comfort, dryness, day-to-day life at present, but in both state vision, comfort, dryness positive assessment appears worn than when a positive evaluation appears was unknown.

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