• 대한방사성의약품학회지
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• 제7권1호
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• pp.1-2
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• 2021

• 대한방사성의약품학회지
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• 제8권1호
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• pp.1-2
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• 2022

• 대한방사성의약품학회지
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• 제9권1호
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• pp.1-1
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• 2023

• 대한방사성의약품학회지
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• 제7권2호
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• pp.67-67
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• 2021

• 대한방사성의약품학회지
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• 제6권2호
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• pp.59-60
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• 2020

• 대한방사성의약품학회지
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• 제6권1호
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• pp.1-2
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• 2020

• 대한방사선기술학회지:방사선기술과학
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• 제27권3호
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• pp.51-58
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• 2004

초음파 검사 후 완전히 제거되지 않고 남아있는 Gel은 미생물이 증식하기에 좋은 조건을 가지고 있다. 따라서 본 연구자들은 초음파 탐촉자의 위생관리 실태와 위생과 감염에 대한 인식의 정도를 알아보기 위해서 2003년 12월부터 서울지역에 있는 42개의 병원을 대상으로 전화설문을 시행하였다. 또한 세 대의 초음파 장치 탐촉자에서 시료를 채취하여 미생물을 배양 증식한 후 탐촉자의 오염된 정도를 알아보았다. 21개 병원만이 탐촉자의 위생관리를 실시하였고, 소독 방법은 주로 알콜솜을 많이 이용하였다. 위생관리 주기는 14개 병원만이 매일 하는 것으로 조사되었다. 탐촉자에 묻은 Gel제거 방법은 면수건을 많이 이용하였다. 감염의 위험에 노출되어 있는 환자의 초음파 검사 시 감염예방관리를 하고 있는 병원은 32개였고 환자 검사 시 탐촉자를 비닐커버나 외과용 장갑, 알콜 소독 후 사용하고 있는 것으로 조사되었다. 감염 인식도 조사에서 초음파 탐촉자 사용법이 비위생적이라는 생각이 78.6%(33개)였고, 탐촉자를 통한 세균이 감염여부에 대해 54.8%(23개)가 감염될 수 있을 것으로 생각하고 있었다. 탐촉자에서 채취한 시료를 배양한 결과 세균과 진균이 셀 수 없이 너무 많이 오염되어 있었고 대장균은 검출되지 않았다. 결론적으로 초음파 검사 후에는 탐촉자에 묻어있는 Gel에서 세균이 증식하여 감염이 될 수 있으므로 완전히 제거하여 환자간 교차 감염의 위험요인을 줄이는 것과 감염관리에 대한 의식전환이 필요하다고 생각된다.

• BMB Reports
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• 제39권3호
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• pp.247-252
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• 2006

A rapid method for the detection of Hepatitis E Virus (HEV) was developed by utilizing nano-gold labeled oligonucleotide probes, silver stain enhancement and the microarray technique. The 5'-end -$NH_2$ modified oligonucleotide probes were immobilized on the surface of the chip base as the capture probe. The detection probe was made of the 3'-end -SH modified oligonucleotide probe and nano-gold colloid. The optimal concentrations of these two probes were determined. To test the detection sensitivity and specificity of this technique, a conservative fragment of the virus RNA was amplified by the RT-PCR/PCR one step amplification. The cDNA was hybridized with the capture probes and the detection probes on microarray. The detection signal was amplified by silver stain enhancement and could be identified by naked eyes. 100 fM of amplicon could be detected out on the microarray. As the results, preparation of nano-gold was improved and faster. Development time also was shortened to 2 min. Thus, considering high efficiency, low cost, good specificity and high sensitivity, this technique is alternative for the detection of HEV.

• 전기학회논문지
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• 제64권1호
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• pp.188-195
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• 2015

This paper presents measurement error reduction technique of touch and step voltage of grounding system based on numerical analysis. When measuring touch and step voltage of grounding system, auxiliary current probes should be located at suitable places. However, the auxiliary probes can not be located at suitable places in such cases as there are buildings and pavements. Therefore, in this paper, we provided measurement error reduction technique of touch and step voltage of grounding system according to the positions of auxiliary probes and angle between auxiliary probes. Also, measurement error analyses of touch and step voltage of grounding system have been conducted using more than one current probe. Based on these analyses, recommended positions of auxiliary probes within allowable measurement errors were presented.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1995년도 추계학술발표회논문집(1)
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• pp.450-455
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• 1995

A three-dimensional numerical tool is developed to calculate the potential distribution, electric field, and conductance for any types of conductance probes immersed in the wavy liquid film with various shapes of its free surface. The tool is validated against various analytical solutions. It is applied to find out the characteristics of the wire-wire probe, the flush-wire probe and the flush-flush probe in terms of resolution, linearity, and sensitivity. The wire-wire probe shows high resolution and excellent linearity for various film thickness, but comparably low sensitivity for low film thickness fixed. The flush-wire probe shows good linearity and high sensitivity for varying film thickness, but resolution degrading with an increase in film thickness. In order to check the applicability of the three types of probes in the real situation, the Korteweg-de Vries(KdV) two-dimensional solitary wave is simulated. The wire-wire probe is strongly affected by the installation direction of the two wires; when the wires are installed perpendicularly to the flow direction, the wire-wire probe shows large distortion of the solitary wave. In order to measure the transverse profile of waves, the wire-wire probes and the flush-wire probes are required to be separately installed 2mm and 2mm, respectively.