• 한국콘텐츠학회논문지
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• 제11권7호
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• pp.219-224
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• 2011

의료정보시스템과 연동된 고객 맞춤형 검사안내콘텐츠 (PEGC)를 대기시간에 보여줌으로써 체감 대기 시간을 단축하여 고객의 만족도와 의료 서비스의 증진을 목적으로 한다. 제안한 고객 맞춤형 검사안내콘텐츠는 신뢰적인 데이터 전달 서비스로 형성할 수 있는 TCP/IP를 기반으로 이루어졌다. 동작은 의료정보시스템에서 차기 대기 고객의 신호 event가 발생되면 이루어진다. 이때 고객 맞춤형 검사안내콘텐츠는 해당 고객의 ID와 검사안내, 검사방법, 검사결과안내, 탈의안내 정보 등으로 구축된 검사안내 데이터베이스에서 맵핑하여 대기실의 모니터를 통해 고객이 볼 수 있도록 하였다. 영상의학과 일반진단검사를 위해 내원한 외래고객을 대상으로 PEGC 설치 전 고객 만족도는 5점 만점 중 대기시간이 3.6점으로 나타났다. 하지만, 제안한 PEGC의 설치 후 검사대기시간에 대한 만족도는 5점 만점 중 평균 4.6점으로 크게 만족하는 것으로 나타났다 (p<0.05).

• 대한의용생체공학회:의공학회지
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• 제39권3호
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• pp.116-123
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• 2018

This study is a model experimental study using a phantom to propose an optimized brain CT scan protocol that can reduce the radiation dose of a patient and remain quality of image. We investigate the CT scan parameters of brain CT in clinical medical institutions and to measure the important parameters that determine the quality of CT images. We used 52 multislice spiral CT (SOMATOM Definition AS+, Siemens Healthcare, Germany). The scan parameters were tube voltage (kVp), tube current (mAs), scan time, slice thickness, pitch, and scan field of view (SFOV) directly related to the patient's exposure dose. The CT dose indicators were CTDIvol and DLP. The CT images were obtained while increasing the imaging conditions constantly from the phantom limit value (Q1) to the maximum value (Q4) for AAPM CT performance evaluation. And statistics analyzed with Pearson's correlation coefficients. The result of tube voltage that the increase in tube voltage proportionally increases the variation range of the CT number. And similar results were obtained in the qualitative evaluation of the CT image compared to the tube voltage of 120 kVp, which was applied clinically at 100 kVp. Also, the scan conditions were appropriate in the tube current range of 250 mAs to 350 mAs when the tube voltage was 100 kVp. Therefore, by applying the proposed brain CT scanning parameters can be reduced the radiation dose of the patient while maintaining quality of image.

• 정보보호학회논문지
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• 제26권5호
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• pp.1305-1311
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• 2016

스마트 팩토리는 제품의 전 생산 과정에 정보통신기술(ICT: Information and Communications Technologies)을 접목하여, 생산 비용의 절감 및 공정 개선 등을 이룰 수 있는 지능형 공장을 의미한다. 스마트 팩토리를 구현하기 위해서는 필연적으로 내부 설비들이 외부 네트워크와 연결되어야 하며, 이는 기존 폐쇄 망으로 운영되던 설비들이 외부 네트워크에 노출됨으로써 보안 취약성 증가하게 된다. 이러한 문제점을 해결하기 위해서 일반 네트워크에 사용하고 있는 보안 장비를 적용할 수는 있으나 이 방법만 가지고는 스마트 팩토리 망에서의 보안 위협을 완벽하게 차단하는 것은 불가능하며 보안 침해 사고가 발생 시 물리적, 경제적 피해는 산정할 수 없을 정도로 클 것이다. 이에 본 논문에서는 스마트 팩토리에 적용 가능한 보안 기법들을 알아보며 안전한 스마트 팩토리를 위한 전용 보안 게이트웨이 및 보안 게이트웨이가 가져야할 주요 융합 보안 기술을 제안한다.

• Food Science and Biotechnology
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• 제17권3호
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• pp.508-513
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• 2008

Erythromycin has been used to treat Streptococosis, Edwardsiel1osis, Vibriosis, Bacterial enteritis in the cultured fish. In this study, a rapid and effective erythromycin analysis method with new sample treatment protocol and liquid chromatography/tandem mass spectrometry (LC/MS/MS) system for fish products was developed. For the erythromycin extraction from fish muscle, the solvent mixture composed of 0.2% meta-phosphoric acid and methanol (6:4) showed good recovery rate, and the optimum extraction solvent volume was 20 mL. Erythromycin detection using LC/MS/MS were carried out under electro spray ionization (ESI) positive condition and erythromycin mass value 576.2 and 157.9. And the detection limit of the established method was 0.005 mg/kg in fish products. The recovery rate of the developed method applied to the fish species were as following, olive flounder, $87.6{\pm}5.0%$; black rockfish, $87.2{\pm}6.4%$; eel, $85.2{\pm}4.8%$; and rainbow trout, $86.0{\pm}6.2%$. In the established method in this study, the correlation of coefficient values ($R^2$) of erythromycin calibration curve (n=11) was 0.9998.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2004년도 학술대회지
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• pp.468-472
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• 2004

In this paper a VLSI design for the automatic magnetizing system has been presented. This is the design of a peripheral controller, which magnetizes CRTs and computers monitors and controls the automatic inspection system. We implemented a programmable peripheral interface(PPI) circuit of the control and protocol module for the magnetizer controller by using a O.8um CMOS SOG(Sea of Gate) technology of ETRI. Most of the PPI functions has been confirmed. In the conventional method, the propagation/ramp delay model was used to predict the delay of cells, but used to model on only a single cell. Later, a modified "apos;Linear delay predict model"apos; was suggested in the LODECAP(LOgic Design Capture) by adding some factors to the prior model. But this has not a full model on the delay chain. In this paper a new "apos;delay predict equationapos;" for the design of the timing control block in PPI system has been suggested. We have described the detail method on a design of delay chain block according to the extracted equation and applied this method to the timing control block design.

• 상하수도학회지
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• 제31권1호
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• pp.29-37
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• 2017

To estimate pollution sources in the watershed with various industries, the simulation of contamination route and distribution of 2-methyl-4,6-dinitriophenol(DNOC) were performed with a numerical model Hydro Geo Sphere. This study was performed calculations of the load using the measured concentration and simulated flow rate. And, the river was divided by the sampling sites at the mainstream, and the contribution rate at downstream sampling sites was calculated for each section. The results showed the concentration of the downstream sampling sites were decided by the concentration of upstream sites, and the contribution rates of the tributaries were calculated below 10%. The results also showed that the impact of the potential sources in Section 1(Geumho1 ~ Geumho2) and Section 5(Geumho5 ~ Geumho6) was larger than in the other area. In Section1 and Section5, It seemed to require detailed investigation.

• Earthquakes and Structures
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• 제9권4호
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• pp.767-788
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• 2015

A steel shear wall with double-tapered links and in-plane reference was developed for assisting the assessment of the structural condition of a building after an earthquake while maintaining the original role of the wall as a passive damper device. The double-tapered link subjected to in-plane shear deformation is designed to deform torsionally after the onset of local buckling and works as an indicator of the maximum shear deformation sustained by the shear wall during an earthquake. This paper first examines the effectiveness of double-tapered links in the assessment of the structural condition under various types of loading. A design procedure using a baseline incremental two-cycle loading protocol is verified numerically and experimentally. Meanwhile, in-plane reference links are introduced to double-tapered links and greatly enhance objectivity in the inspection of notable torsional deformation with the naked eye. Finally, a double-layer system, which consists of a layer with double-tapered links and a layer with rectangular links made of low-yield-point steel, is tested to demonstrate the feasibility of realizing both structural condition assessment and enhanced energy dissipation.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2008년도 추계 학술발표회 제20권2호
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• pp.425-428
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• 2008

교량 바닥판은 공용기간 동안 차량하중 및 외부 열화환경(동결융해, 우수, 융빙제)에 직접적으로 노출되어 있어 교량의 주요 부재 중 가장 많은 결함이 발생되는 부위이다. 따라서, 콘크리트 교량 바닥판의 열화원인을 분석하고 향후 손상방지 및 품질향상 대책을 수립하고자, 고속도로 상에 공용 중인 교량 바닥판 중 19개소에 대해 콘크리트 코어를 채취하고, 콘크리트에 대한 공극특성 분석을 실시하였다. 실험결과, 손상이 발생된 교량 바닥판의 경우, 공기량이 기준치에 미달하거나, 기준치를 만족하는 경우에도 기포간격계수가 외국의 기준에 미치지 못하여 내구성이 저하된 것으로 나타났다.

• Asian-Australasian Journal of Animal Sciences
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• 제21권1호
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• pp.1-5
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• 2008

To analyze genetic effects on milk production traits, 164 unrelated Italian Jersey cows reared in 15 farms located in Southern Italy were characterized at the growth hormone locus. Using a Polymerase Chain Reaction-Restriction Fragment Length Polymorphism protocol all three possible genotypes for the Leucine/Valine polymorphism were identified even if in the considered population the number of homozygous animals (Leucine/Leucine = 36; Valine/Valine = 28) was smaller than Leucine/Valine (n = 100) cows; the Hardy-Weinberg equilibrium was verified. Statistical analysis showed that daily milk yield in the Leucine/Leucine genotype was higher (p<0.01) than in Leucine/Valine (22.76 kg vs. 16.96 kg ); cows with Leucine/Valine genotype differed significantly from Leucine/Leucine and Valine/Valine genotypes particularly in fat (4.95% vs. 4.13% and 4.82%, respectively) and protein content (4.00% vs. 3.47% and 3.79%, respectively). No significant effect on lactation length was observed.

• 대한방사선기술학회지:방사선기술과학
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• 제42권6호
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• pp.441-446
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• 2019

The purpose of this paper is to recognize the usefulness of the Phantom produced with 3D printing technology by reproducing the original phantom with 3D printing technology. Using CT, we obtained information from the original phantom. The acquired file was printed by the SLA method of ABS materials. For inspection, SPECT/CT was used to obtain images. We filled the both Phantom with a solution mixed with ^99mTcO4 1 mCi in 1 liter of water and acq uired images in accordance with the standard protocol. Using Image J, the SNR for each slice of the image was obtained. As a reference images, AC images were used. For the analysis of acquired images, ROI was set in the White mater and Gray mater sections of each image, and the average Intensity Value within the ROI were compared. According to the results of this study, 3D printed phantom's SNR is about 0.1 higher than the conventional phantom. And the ratio of Intensity Value was shown in the original 1 : 3.4, and the printed phantom was shown to be 1 : 3.2. Therefore, if Calibration Value is applied, It is assumed that it can be used as an alternative to the original.