• KIEE International Transaction on Systems and Control
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• 제2D권2호
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• pp.59-64
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• 2002

About two thirds of patients admitted to hospitals world-wide suffer from acute abdomen pains of varying degrees of severity. Acute abdomen pain due to appendicitis or pancreatitis usually requires urgent surgical treatment, whereas pain due to heart ischemia or enteroviral infection requires only drug treatment. In general, making an immediate decision about whether or not acute abdomen pain requires urgent surgery is very difficult. This decision becomes even more difficult when the patient is a young child who can't properly describe the abdominal pain. In this case, thermo-visual inspection can alternatively be used to decide whether urgent surgical treatment is necessary to cure the abdominal pain.

• 한국대기환경학회지
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• 제15권5호
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• pp.599-611
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• 1999

Now that the plume of point source was suspected to have strong impact on visibility impairment in Pusan, we evaluated visibility impairment impact of the pulme from Pusan Thermo Electric Power Plant in Pusan. Level-1 and-2 analyses were carried out using VISCREEN(Visual Impact Screen model). The emission rates for this Pusan Thermo Electric Power Plant was projected to be 116g/s of nitrogen oxides(as $NO_2$). The source fails the level-1 test with a Plume perceptibility(ΔE) of 30, nearly 15 times the screeing threshold. To characterize worstcase meteorological conditions for level-2 screening, we obtained meteorological data from Mar., 1996 to Feb., 1997 of Pusan Thermo Electric Power Plant. The source fails the level-2 test with a ΔE of 17, nearly 8.5 times the screening threshold. These analyses indicated that adverse visibility impairment could not be ruled out. Therefore a Level-3 analysis was performed using PLUVUE II(Plume Visibility model). As a result, maximum reduction of visual range for 0900LST in winter was 0.9%. Visual impact of the plume from vast point source was judged to be considerable in terms of background visibility of urban area.

• Journal of Acupuncture Research
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• 제30권2호
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• pp.25-30
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• 2013

Objectives : The Purpose of this study is to evaluate the effect of the deep thermo-conductive acupuncture therapy for the patients with lateral epicondylitis of the elbow. Methods : Thirteen patients with lateral epicondylitis were included from April 2011 to December 2012 and all the patients were treated with the deep thermo-conductive acupuncture therapy. Then we checked visual analog scale(VAS) scores of the patients at every hospital visit, and compared the differences for before and after treatment. We also divided them into 3 age groups(in 40s, 50s, 60s) and 4 groups of the duration of illness(~1 week, ~1month, ~6 months, 6 months ~), and compared the effects for 3 age groups as well as 4 groups of duration of illness. Results : 1. VAS scores had been changed significantly from $6.0769{\pm}1.5390$ to $3.3077{\pm}1.9207$(p=0.005). 2. No significant differences were found between 3 age groups(p=0.968) as well as 4 groups of the duration of illness(p=0.724). Conclusions : This study suggests that deep thermo-conductive acupuncture therapy is effective for healing of the lateral epicondylitis of elbow. But the age and the duration of illness seem to have no influence on results.

• 한국군사과학기술학회지
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• 제10권4호
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• pp.138-144
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• 2007

This paper introduces the design techniques of an IR module using the 2-D array un-cooled type infrared detector which is applied to the individual combat weapon. Considering the size and weight of the hand carried weapon system, we used a very small-sized detector and applied an adaptive temperature control algorithm so that the operation consumed with low power can be possible. We applied the AR(Auto Regressive) filter to improve the signal-to-noise ratio in a thermal image processing step. We also applied the plateau equalization and boundary enhancement techniques to improve the visibility for human visual system.

• 전기학회논문지P
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• 제57권4호
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• pp.417-423
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• 2008

For the evaluation in the safety of outdoor insulator, there are various methods such as: visual observation; voltage measurement; use of ultrasonic wave due to partial discharge; electric field measurement; use of infrared/ultraviolet sensor-type camera. However, many problems have been issued regrading the reliability of the evaluation test and safety of testing operation. Accordingly, the present study has investigated and analyzed the characteristics and mechanisms of the insulator deterioration, in order to obtain an optimal method for detecting poor insulator so that the reliability of power facilities can be enhanced. Besides, based on theoretical analysis of domestic and international detection methods for poor insulator, the reliability has been compared and evaluated quantitatively. As a result, it was shown that the corona camera would be the best choice for domestic workplace application in detecting poor insulator for enhancing the reliability of power transmission line.

• Composites Research
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• 제12권6호
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• pp.43-52
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• 1999

본 연구에서는 복합재 구조물의 설계를 위한 동시공학 시스템을 개발하였다. 동시공학 시스템은 보다 짧은 제품 개발시간과 저렴한 생산비용으로 보다 우수한 품질을 갖는 제품생산을 위해 개발되었다. 본 연구에서는 동시공학 시스템의 개발을 위해 복합재 구조물의 설계와 해석에 관련된 다양한 상용 및 비 상용 소프트웨어들이 조사/수집 되었다. 동시공학 시스템에는 고전적층판이론과 유한요소해석을 이용한 복합재 구조물의 설계 및 해석 모듈,좌굴 및 좌굴후 거동해석 모듈,탄소-탄소 복합재의 열탄성 거동해석 모듈 및 전문가 시스템과 유전자 알고리즘을 이용한 복합재 구조물의 최적설계 모듈로 구성되어 있다. 또한 동시공학시스템은 소프트웨어들의 통합 및 관리를 위해 다중작업 및 그래픽 사용자 인터페이스의 구성이 가능한 마이크로 소프트사의 비주얼 $C++{^\circledR}$에 의해 구현되었다.

• Advances in concrete construction
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• 제7권4호
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• pp.263-275
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• 2019

In the present work, Granulated Blast Furnace Slag (GBFS) and Fly ash (FA) were used as partial replacement of Natural Sand (NS) and Ordinary Portland Cement (OPC) by weight. One control mix, one with GBFS, three with FA and three with GBFS-FA combined mixes were prepared. Replacements were 50% GBFS with NS and 20%, 30% and 40% FA with OPC. Preliminary investigation on development of compressive strength was carried out at 7, 28 and 90 days to ensure sustainability of waste materials in concrete matrix at room temperature. After 90days, thermo-mechanical study was performed on the specimen for a temperature regime of $200^{\circ}-1000^{\circ}C$ followed by furnace cooling. Weight loss, visual inspection along with colour change, residual compressive strength and microstructure analysis were performed to investigate the effect of replacement of GBFS and FA. Although adding waste mineral by-products enhanced the weight loss, their pozzolanicity and formation history at high temperature played a significant role in retaining higher residual compressive strength even up to $800^{\circ}C$. On detail microstructural study, it has been found that addition of FA and GBFS in concrete mix improved the density of concrete by development of extra calcium silicate gel before fire and restricts the development of micro-cracks at high temperature as well. In general, the authors are in favour of combined replacement mix in view of high volume mineral by-products utilization as fire protection.

• 패션비즈니스
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• 제21권2호
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• pp.105-112
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• 2017

A string wallcovering is a kind of textile wallcovering which is made of cellulose fiber yarn laminated on base paper. Compared with normal paper or PVC wallpaper, a string wallcovering is preferred continually in the interior design market, as it is not only environmentally friendly but it also has less cost on mass production without the weaving process and has a natural visual effect, excellent functionality such as thermo keeping, permeability, sound absorption. However, in the dyeing process, it is not appropriate to use plenty of energy such as water, electricity, steam or chemicals considering the environmental trend and the government policy plenty of energy such as water, electricity, steam or chemicals. Currently, a string wallcovering is made of raw white yarn and padding with direct dye or pigment which includes toxic elements, especially the use of direct dye is restricted in a part of the developed country due to inclusion of azo. In this study, we researched dyeing based on cold pad batch dyeing of a string wallcovering with reactive dyestuff. The peel strength and bending depth test confirmed that the optimum adhesive type and spread amount improved the water resistance of the string wallcovering. Also, pad batch dyeing with optimum reactive dyestuff enhanced the color fastness to light and rubbing in dry and wet conditions. Additionally, for improvement of color fastness to rubbing in a wet condition, the additional treatment finishing without soaping process which is used water. The results of this study can be used as basic data for environmentally friendly and energy saving of the textile wallcovering.