• 대한공간정보학회지
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• 제16권1호
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• pp.67-73
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• 2008

관로 내부를 조사하는 일반적인 방법은 CCTV 카메라를 장착한 원격 조정 기계를 사용하는 것이다. 그러나, 이 시스템은 관로의 상태에 따라서 정확한 관측이 어렵다. 기존의 CCTV 기기의 경우에 있어서 카메라가 파이프의 정면만을 향하기 때문에 관측 거리에 따라서 판독 결과가 다른 경우가 발생한다. 관측 정확도에 있어서도 작업자의 기술과 경험에 많은 영향을 받는다. 본 연구를 통하여 영상처리기법과 렌즈의 조합에 의한 새로운 시스템을 제안하였다. 영상취득 체계는 전면 영상과 함께 측면의 영상을 동시에 취득할 수 있도록 개발되었다. 측면에 대한 영상 전개 및 영상 결합을 위하여 적용된 영상처리 기법을 통하여 관로 내면에 대한 고해상도 영상 정보를 도출할 수 있었다.

• Asia pacific journal of information systems
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• 제10권2호
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• pp.51-69
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• 2000

Recently, as business problems become more complicated and require more precise quantitative results, large-scale model management systems are increasingly in demand for supporting the decision-making activities. In addition, as distributed computing over networks gains popularity, departmental computing systems are gradually adopted in an organization to facilitate collaboration of geographically dispersed multiple departments. In departmental collaborative model management systems, multiple departments share common models but approach them with different user-views depending on their departmental needs. Moreover, the shared models become evolved as their structures and the corresponding data sets change due to the dynamic nature of the operating environment and the inherent uncertainty associated with the problems. In such capacity, providing the multiple departmental users with synchronized and consistent views of the models is important to improve the overall productivity. In this paper, we propose a collaborative model management framework for coordinating model change and automatic user-view update in a departmental computing environment. To do so, we describes changes in the model and their effects occurred in departmental model management environments and identifies the constructs and processes for maintaining the consistency between a shared model and its departmental user-views. Especially, in this framework, generic model concept was adopted for accommodating diverse mathematical models in a uniform way in a modelbase and object-oriented database management systems(ODBMS) for combining the model management constructs and automatic user-view update mechanisms in a single formalism. A prototype object-oriented modeling environment was developed using an ODBMS called ObjectStore and $C^{++}$ programming language on Windows NT.

• 한국운동역학회지
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• 제19권2호
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• pp.187-196
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• 2009

The foot type is classified into normal, high or low arch according to either foot print or medial longitudinal arch (MLA) height. Plantar fasciitis, heel pain, Achilles tendinitis, stress fracture, metatarsalgia, knee pain, shin splint pain, and etc are common foot disorders and associate to the foot type. The purpose of this study was to evaluate several suggested bony inclination used to classified the abnormal foot and if the arch index (AI) was correlated with foot morphology. Lateral view and dorso-plantar view of radiographic images and flatbed scanner measurements obtained from 57 college students were analyzed. Results showed that AI measured in this study was higher than Caucasian Americans and European, but similar with African. The ethnic origin could influent the AI distribution. The AI provided a simple quantitative means of assessing the structure of lateral and medial longitudinal arches. The correlation coefficients of true bone height with AI could be further improved by normalized foot width rather than foot length. AI also demonstrated as a good indicator of inclination between calcaneus-fifth metatarsal (CalM5) and calcaneus-first metatarsal (CalX), it is a good means to classify the foot type.

• 대한안전경영과학회지
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• 제19권3호
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• pp.1-9
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• 2017

In the industrial field, various type of fuel have been used for product processing facilities. Recent for 10 years, the usage of natural gas (NG) was gradually increased. Because it has many merits; clean fuel, no transportation, storage facility and so on. There are common safety concept that strict explosion protection approaches are needed for facilities where explosive materials such as flammable liquid, vapor and gases exist. But some has an optimistic point of view that the lighter than air gases such as NG disperse rapidly, hence do not form explosion environment upon release into the atmosphere, many parts has a conventional safety point of view that those gases are also inflammable gases, hence can form explosion environment although the extent is limited and present. In this paper, the heating equipments (Hot Oil Heater) was reviewed and some risk management measures were proposed. These measures include hazardous area classification and explosion-proof provisions of electric apparatus, an early gas leak detection and isolation, ventilation system reliability, emergency response plan and training and so on. This study calculates Hazardous Area Classification using the hypothetical volume in the KS C IEC code.

• 지역사회간호학회지
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• 제7권1호
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• pp.129-137
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• 1996

The purpose of this study is to examine the medicalizing process of menopanse with literature review, and then is to explore the knowledge of 'menopausal syndrome' critically, focused on four critics on the biomedical model which were suggested by Mishler. Although menopause is a natural biological phenomenon, the view of many medical researchers and practitioners is that menopause is a disease. After synthetic estrogen was developel in 1938, physicians did agree on two basic assumptions : menopausal women should be managed by physicians, and medical intervention should be given. Menopouse was defined as a deficiency disease (estrogen difficiency) by Wilson in 60's and is redefined as a cause of disease(for example, osteoporosis, heart disease) at the present. But the other view of non-medical researcher is that 'menopausal syndrome' as a disease is constructed medically. It was reported that Only hot flush and sweating of physical symptoms experienced by menopausal women, were associated with menopause. Symptoms of menopausal syndrome are also related with symptons of aging. So, it cann't conclude that menopausal syndrome is resulted from menopause, and it cann't be only explained that menopausal syndrome is related causally to estrogen deficiency, and only treatment by ERT or HRT is best relevant. It cann't assume that menopausal syndrome is a common phenomenon to all menopause women, because culture affected on women's experience of menopause.

• ETRI Journal
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• 제38권1호
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• pp.149-158
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• 2016

In the field of augmented reality technologies, commercial optical see-through-type wearable displays have difficulty providing immersive visual experiences, because users perceive different depths between virtual views on display surfaces and see-through views to the real world. Many cases of augmented reality applications have adopted eyeglasses-type displays (EGDs) for visualizing simple 2D information, or video see-through-type displays for minimizing virtual- and real-scene mismatch errors. In this paper, we introduce an innovative optical see-through-type wearable display hardware, called an EGD. In contrast to common head-mounted displays, which are intended for a wide field of view, our EGD provides more comfortable visual feedback at close range. Users of an EGD device can accurately manipulate close-range virtual objects and expand their view to distant real environments. To verify the feasibility of the EGD technology, subject-based experiments and analysis are performed. The analysis results and EGD-related application examples show that EGD is useful for visually expanding immersive 3D augmented environments consisting of multiple displays.

• 대한족부족관절학회지
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• 제6권2호
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• pp.251-255
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• 2002

Purpose: Chronic subtalar instability is not common and similar to chronic ankle instability and the incidence and cause chronic subtalar instability are not well known. Recently we have experienced chronic subtalar instability without chronic ankle instability which was treated with modified Brostrom procedures. Materials and Methods: The patient is 46 year old man who has suffered from left ankle sprain for 30 years and recently aggravated more than twice a day. On subtalar stress view, 14 degree angulation of subtalar joint was noted and on anterior drawer view, 8 mm anterior displacement of left ankle was seen. Results: In operation, there was no anterior talofibular ligament abnormility but calcaneofibular ligament loosening was found. Ligament reconstruction was performed using modified Brostrom procedure. At 12 months after operation, the patient complains no pain and no limit of motion and no instability. Conclusion: We experienced chronic subtalar instability without ankle instability treated with modified Brostrom procedures. No instability was found after treatment without complication.

• 한국조경학회지
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• 제22권4호
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• pp.81-93
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• 1995

Landscape Style would take various influences in general. In that of Korean Palaces religious thinking has been caused he most important factor. This conceptual attitude has been derived from Confucian philosophies and the doctrines of Taoism, the realm of ideas that had constituted the schema of culture through long times in the Orient. This paper has dealt with the influences of one's outlook on the universe, antropocentricism, and on the relationships of man and nature in those two major teachings upon the landscape style of palaces in Chosun Dynasty. The Confucian philosophies and the doctrines of Taoism in Taosim in palaces would be summarized as followings: 1. The composition of exterior spaces had been understood as a place for moral training and political morality in the world view of Confucious. 2. The view point on court circle with plants and trees had directed to the influences of beauty upon the human spirit, and it is clear in naming attitude. 3. The composition type of void and solid in palaces would focused on the completion of Confucian thoughts totally, and the method of a unit space is same. 4. The double symbolic ideas could be find out in the components of exterior space; one is Confucian in phenomena, the other is Taoism in meaning. This can be cleared in Pangji(方池), layout of natural features, and in planting methods. As a conclusion, the common spiritual base in landscape architecture of Korean old palaces can be understood as two major thinkings; Confucian philosophies and the doctrines of Taoism.

• 조명전기설비학회논문지
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• 제18권6호
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• pp.213-219
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• 2004

본 논문에서는 기존 보일러 제어기와 병행하여 사용될 수 있는 인터넷 웹 보일러제어 기술의 개발에 논한다. 웹보일러제어기는 중요 요소로 RTL8019 네트워크제어기와 TS80C32 마이크로콘트롤러로 구성된다. 인터넷을 통한 통신을 위하여 IP, TCP, UDP, ICMP, 및 HTTP의 프로토콜과 이더넷 네트워크드라이버를 개발할 필요가 있다. 웹 보일러제어기 경우, RAM사용량을 최소화하기 위한 공통전역버퍼 알고리즘을 제안한다. 끝으로 개발된 프로토콜들의 올바름과 성능을 측정하기 위하여 CommView와 Dummynet이 사용된다. 개발결과 수백 바이트 RAM에서도 호스트 간에 상호 호환성을 잃지 않고 임베디드 웹 제어기가 동작된다.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2008년도 춘계학술대회 논문집
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• pp.220-223
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• 2008

Large curved plate blocks are widely used to construct hull structure in shipbuilding industry. Most curved plates are manufactured by using manual method called as line heating that use deformation caused by residual stress after local heating along a line which is perpendicular to the curvature direction. However, its working environment is poor and its formability is totally dependent on an experienced technician. In view of that, multi-point dieless forming (MDF) technology that use reconfigurable punch arrays instead of one piece die is proposed in this study. The MDF process is based on a concept of equivalent die surface made by numbers of punches which has round tip at the end of it. In this study, numerical simulation for common curvature type such as saddle shape was carried out. In addition, experiments in the plate forming process were also conducted to compare with the numerical results in view of final configuration. Consequently, it was noted that the proposed dieless forming method has considerable feasibility to substitute the new process for conventional manual method.