• Journal of Chest Surgery
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• 제32권2호
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• pp.194-197
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• 1999

지질성 폐렴이란 폐포나 간질에 존재하는 지질에 대한 폐조직의 반응을 의미하며 내인성과 외인성으로 구분된다. 내인성은 지질이 폐실질에서 생성된 경우를 말하며 외인성은 지질을 흡인하거나 흡입한 경우를 말한다. 본 증례의 경우 53세 남자가 오한과 혈담을 주소로 내원하여 경피적 흉막 및 폐생검을 시행후 내인성 지질성폐렴 진단하에 좌하엽절제술 및 늑막박피술을 치험하였기에 보고하고자 한다.

• 대한전자공학회논문지
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• 제23권3호
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• pp.389-396
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• 1986

A pulsed ultrasonic doppler flowmeter for mesurements of velocity profils in man is described. The device projects a beam of ultrasound in burst of 570 ns duration at 3.5 MHz. The back-scattered signals are processed to produce a signal oxrresponding to the mean velocity over a small region of the flowing stream. The observation range of 112mm is divided into 128 depth channels. The size of this sample volume determines the flowmeter sensitivity and accuracy. The device uses a quadrature detector to detect the direction of the moving target(hemoglobin). The main feature of the novel instrumnet is its simple hardware structure due to sequential signal processing.

• Journal of Mechanical Science and Technology
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• 제15권12호
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• pp.1853-1859
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• 2001

An experimental study is presented for a flow field in a two dimensional wavy channels by PIV. This flow has two major applications such as a blood flow simulation and the enhancement of heat transfer in a heat exchanger. While the numerical flow visualization results have been limited to the fully developed cases, existing experimental results of this flow were simple qualitative ones by smoke or dye streak test. Therefore, the main purpose of this study is to produce quantitative flow data for fully developed and developing flow regimes by the Correlation Based Correction PIV (CBC PIV) and to conjecture the analogy between flow characteristics and heat transfer enhancement with low pumping power. Another purpose of this paper is to examine the onset position of the transition and the global mixing, which results in transfer enhancement. PIV results on the Fully developed and developing flow in a wavy channel at Re=500, 1000 and 2000 are obtained. for the case Reynolds Number equals 500, the PIV results are compared with the finite difference numerical solution.

• 전자공학회논문지
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• 제54권5호
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• pp.138-142
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• 2017

광전용적맥파(PPG)는 조직의 미세혈관에서 혈류의 변화를 감지할 수 있는 간단하고 저가의 광학기법이다. PPG는 피부 표면에서 비침습 방식의 측정에 사용된다. 본 논문에서는 PPG 센서를 이용한 심박 모니터링 시스템을 구현하였다. 제안한 시스템은 PPG 센서를 이용하여 데이터를 수집하고, 2차 미분 방식으로 심박수를 검출한다. 제안한 시스템의 유용성을 확인하기 위하여 상용 의료기기와 RR-구간의 측정을 수행하였다.

• 생약학회지
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• 제38권1호
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• pp.37-44
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• 2007

Yeon Ju Hwan (蓮珠丸) is a Chinese patent medicine which has been used for improvement of blood circulation and thrombolysis in Korea. It consists of 28 kinds of powdered crude drugs. For the identification of individual ingredients in such powdery mixtures, microscopic method may advantageously be used, as it requires only small amount of specimens. And also it is considered a technique of choice since it takes only minimum time and requires a simple process. In this paper, the effectiveness of this method is exemplified by the identification of the ingredients in Yeon Ju Hwan, which contains 28 powdered crude drug ingredients.

• Journal of Chest Surgery
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• 제34권1호
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• pp.108-110
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• 2001

심장박동하 관상동맥우회로이식술은 이미 보편화되어 널리 시행되고 있는 술식이다, 현재 관심사는 최소한의 혈액역학적 장애를 주며 심장을 최대한 고정시키는 것이다. 이에 저자들은 좌전하행지를 시야의 정중선으로 옮기는 간단하고 안전한 방법을 소개하고자 한다. 50 cc 주사기에 연결된 채혈주머니를 좌심실밑에 넣은후 공기를 주입하면 심장이 우측으로 돌면서 심장의 측면이 시야의 중앙에 위치하게 된다. 공기를 주입하는 양에 따라 수술부위를 원하는 곳에 위치하게 쉽게 조절할 수 있고, 문합이 끝나면 단순히 공기를 빼어 허탈시킨후 꺼내면 된다.

• International Journal of Contents
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• 제6권3호
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• pp.83-88
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• 2010

Aerobic exercise affects cerebral circulation, action of neurotransmitters, glucose, oxygen, and energetic substances and influence on the central nervous system for cognition. This study suggests that both the intensity of exercise and the level of cognitive task need to be considered. Computerized neurobehavioral testing is a more effective method, compared to conventional methods, of neuropsychological testing when measuring cognition objectively, in cases that we found. The intensity of 80% max HR had effect on more complex tasks such as 3 Digit Addition and Digit Span Backward, and the intensity of 65% max HR had an effect on more simple tasks such as Color Word Vigilance and Digit Span Forward. We can assume that different intensity of aerobic exercise might involve specific areas of the brain as they could have different sensitivities, so further studies measuring regional cerebral blood flow or electroencephalogram are needed to confirm the results.

• 대한치과교정학회지
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• 제28권6호
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• pp.975-979
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• 1998

하악 전치부 근첨하 골전단술을 동반한 상악 변형 분절골 절단술 목적은 양치조성 혹은 양악 전돌 환자로부터 가장 좋은 치료 결과를 얻는 것이다. 본 연구에서는 두부방사선 계측 분석과 정면 사진을 비교 분석해 술 후 연조직 변화를 조사하였다. 구순 전돌이 효과적으로 감소되었으며 비순각은 증가하였다. 코가 약간 넓어졌으나 결과는 비교적 양호하였다. 절단된 골분절의 혈액공급은 잘 유지되었다. 이것은 많은 환자에게 적용할 수 있는 비교적 간단한 수술법이다.

• 한국정밀공학회지
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• 제27권2호
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• pp.29-33
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• 2010

We have investigated fs-laser ablation as well as optoperforation threshold of PDMS (Polydimethylsiloxane) thin lid cover on ${\mu}$-channel with changing the flow medium from water to hemoglobin. The ablation threshold is found to be independent of both PDMS thin film thickness and flow medium, but the optoperforation threshold is dependent on the films thickness. The observation that the ablation process is well described with simple two-temperature model supposed that the cover lid PDMS of $\mu$-channel be processed with minimized thermal effects by fs-laser with low laser fluence.

• 한국의류학회지
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• 제3권1호
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• pp.19-24
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• 1979

1. In the late second century A.D. the dalmatic, which originated in Orient, came into fashion in the Roman world. 2. It was first introduced as a vestment in public worship by Pope Sylvester I (314-335A.D.) who ordered it to be worn by the deacons. 3. The dalmatic was cut like a tunic, but wider, and with wide short sleeves. It was worn without belt, and was characteristically decorated by the clavus. Its shape, which is the form of a cross, refer to the passion of Christ. It symbolizes joy, salvation and justice. 4. In early christian epoch, colors was found in the Bible. 5. Clavus running from the shoulders to the hem in front and back represented as 'The servant of God', and symbolized the Blood of Christ. With time, clavi change from simple stripes to decorative ones.