• 대한한의진단학회지
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• 제17권3호
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• pp.179-188
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• 2013

Objectives This study was designed to development the diagnosis indicators for the fatigue group without disease using analysis of questionnaire data. Methods The subjects were divided into three groups, the fatigue group with disease, the fatigue group without disease, non-fatigue group without disease. Thirteen kinds of questionnaire (Fatigue visual analogue scale, Fatigue severity scale, Pain visual analogue scale, Short-form McGill pain questionnaire score, Headache impact Test-6, Neck disability index, Oswestry low back pain disability questionnaire score, Blood stasis assessment scale, Physical activities questionnaire score, Beck depression inventory, Anger expression inventory score, Mood disability scale, Job stress scale) were carried out for the subjects. Results The results of this study are ; 1) The weight, the systolic and diastolic blood pressure were different among three groups. 2) Among nine questionnaires related to the physical or life conditions, the averages of eight questionnaires were not same one another. 3) Among four questionnaires related to the mental condition or autonomic nervous system, the averages of Beck depression inventory were not same one another. Conclusion The fatigue group without disease can be diagnosed through using the both the questionnaires related to the physical or life condition and the those related to the mental condition or autonomic nervous system.

• Structural Monitoring and Maintenance
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• 제2권3호
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• pp.283-300
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• 2015

Visual condition inspections remain paramount to assessing the current deterioration status of a bridge and assigning remediation or maintenance tasks so as to ensure the ongoing serviceability of the structure. However, in recent years, there has been an increasing backlog of maintenance activities. Existing research reveals that this is attributable to the labour-intensive, subjective and disruptive nature of the current bridge inspection method. Current processes ultimately require lane closures, traffic guidance schemes and inspection equipment. This not only increases the whole-of-life costs of the bridge, but also increases the risk to the travelling public as issues affecting the structural integrity may go unaddressed. As a tool for bridge condition inspections, Unmanned Aerial Vehicles (UAVs) or, drones, offer considerable potential, allowing a bridge to be visually assessed without the need for inspectors to walk across the deck or utilise under-bridge inspection units. With current inspection processes placing additional strain on the existing bridge maintenance resources, the technology has the potential to significantly reduce the overall inspection costs and disruption caused to the travelling public. In addition to this, the use of automated aerial image capture enables engineers to better understand a situation through the 3D spatial context offered by UAV systems. However, the use of UAV for bridge inspection involves a number of critical issues to be resolved, including stability and accuracy of control, and safety to people. SLAM (Simultaneous Localisation and Mapping) is a technique that could be used by a UAV to build a map of the bridge underneath, while simultaneously determining its location on the constructed map. While there are considerable economic and risk-related benefits created through introducing entirely new ways of inspecting bridges and visualising information, there also remain hindrances to the wider deployment of UAVs. This study is to provide a context for use of UAVs for conducting visual bridge inspections, in addition to addressing the obstacles that are required to be overcome in order for the technology to be integrated into current practice.

• 한국지반신소재학회논문집
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• 제19권4호
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• pp.85-93
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• 2020

본 연구에서는 오염된 지반의 정화 시에 발생되는 침하량 계측에 대한 VMS의 적용성을 평가하기 위하여, 오염지반의 침하에 대한 실내실험을 수행하였다. 즉, 수치사진측량기법을 기반으로 개발된 3D-Visual Monitoring System(VMS)와 기존 계측장비인 토탈스테이션을 이용하여, 오염지반 침하에 대한 계측결과를 비교하였다. 실험결과, 중금속으로 오염된 지반의 침하량은 친수성 필터가 적용된 실험조건에서 많이 발생하였다. 계측결과를 바탕으로 VMS의 오차범위를 산정한 결과, 최소 및 최대 오차범위는 각각 ±0.36mm와 ±0.87mm 산정되었고, VMS의 오차량은 모든 실험조건에서 오차범위를 만족하는 것으로 확인되었다. VMS의 평균오차율을 산정한 결과, 소수성 필터조건에 비하여 친수성 필터 조건에서 낮은 평균오차율을 보였다. 이를 바탕으로 오염된 지반의 침하량 계측에 있어서 VMS의 적용이 가능한 것으로 평가되었다.

• Journal of the Korean Wood Science and Technology
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• 제31권2호
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• pp.58-68
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• 2003

목조 고건축물의 안전성 평가를 위해서는 먼저 부재의 성능평가가 선행되어야 한다. 지금까지의 목재 부재의 성능평가는 육안에 의한 경험적 방법에 의존하였다. 하지만 과학적이고 합리적인 비파괴 방법을 적용하여 구조부재의 성능을 평가할 수 있다면 구조물의 안전성 해석은 더욱 정확해지고 합리적이 될 것이다. 이를 위해 본 연구에서는 목조 고건축물의 여러 구조 부재 중 기둥에 대해 비파괴 평가법을 적용하여 구조부재의 성능 평가에 대한 가능성을 알아보았다. 이 결과를 이어지는 연구에서 구조물의 안전성 해석의 기초자료로 사용할 예정이다. 특별히 기둥의 노출 환경에 따른 열화의 진행정도를 비파괴 평가법으로 측정하였다. 그 결과 실제 육안에 의한 열화의 관찰과 유사한 결과를 나타내어 비파괴 방법의 적용 가능성을 보여주었다.

• 한국실내디자인학회논문집
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• 제36호
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• pp.22-29
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• 2003

Most of the studies on traditional houses dealt with the exiting houses which were constructed Chosun Dynasty. But It is to be classified into many items which were point of view period, regional group and social condition. The purpose of this study Is compare early-Chosun Dynasty with late-Chosun Dynasty that the Visual Structure of traditional houses in Yang-Dong village. Early-Chosun Dynasty and late-Chosun Dynasty of traditional houses were well preservation in Yang-Dong village. Therefore traditional houses in Chosun Dynasty are able to classified according to period type of Early-Chosun Dynasty and late-Chosun Dynasty, which a study on the compare spatial composition of traditional houses in Yang-Dong village.

• Tribology and Lubricants
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• 제2권2호
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• pp.44-51
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• 1986

An experimental investigation is carried out to Study the cavitation in a journal bearing with pressurized lubricant supply. Visual observations are performed at various shaft speeds and supply pressure levels. Oil film pressure is measured at various shaft speeds under the submerged condition. Results from visual observations show that the extent of cavitation is reduced as supply pressure increases. The film pressure measurements indicate the occurrence of a negative pressure loop upstream of the cavitation region and a constant cavitation Pressure through the cavitation region.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2008년도 심포지엄 논문집 정보 및 제어부문
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• pp.123-124
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• 2008

The appearance inspection of various electronic products and parts has been executed by the eyesight of human. But inspection by eyesight can't bring about uniform inspection result. Because the appearance inspection result by eyesight of human is changed by condition of physical and spirit of the checker. So machine vision inspection system is currently used to many appearance inspection fields instead of the checker. Therefore we proposes a inspection system in this paper. it will be able to secure the objectivity of the prosecuting attorney using inspection system. Also this system has been developed only using PC, CCD Camera and Visual C++ for universal workplace.

• 대한본초학회지
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• 제25권4호
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• pp.171-177
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• 2010

Objectives : The purpose of this case study is to report the improvement after Sasang Constitutional treatment to patient who has liver disease sequelae. Methods : This patient was treated by Soyangin's Constitutional Medications according to the result of Sasang Constitutional diagnosis. We checked visual analog scale(VAS) to evaluate the symptoms of liver disease sequelae. Results : The general condition of the patient improved by the end of hospitalization. The visual analog scale(VAS) of general weakness dropped from 10 to 3. Other symptoms also showed improvement. Conclusions : This case study shows Sasang Constitutional treatment has effectiveness on liver disease sequelae.

• 전기학회논문지
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• 제59권1호
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• pp.134-137
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• 2010

An LED sensor luminaire for visual function improvement necessitates the control algorithm for light level adjustment and the appropriate lens design. The control algorithm adapts to surround lighting condition, and thus has the advantages of energy saving and glare reduction. The multi-cell lens design improves color temperature uniformity and spatial light distribution of the luminaire. Experimental and simulated results show that this approach contributes noticeably to energy saving and color temperature uniformity of the LED sensor luminaire.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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• pp.1497-1499
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• 2007

Visual perception experiments were conducted to determine the acceptable limit of the contrast ratio of LCD TV under the watching condition. The results showed that the corresponding contrast ratio should be below 10,000:1 at the 3H(height of screen) distance in the living room environment.