http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이헌주,김준환,최진수,송영두,권순욱,박찬원 영남대학교 의과대학 1999 Yeungnam University Journal of Medicine Vol.16 No.1
저자들은 우상복부 동통을 주소로 영남대학교 의과대학 부속병원 내과에 내원한 49세 여자 환자가 전산화 단층 촬영과 간동맥 조영술로 간세포암을 진단받은 후 간동맥 색전술로 치료받고 추적 관찰하던 중 심초음파로 확인된 우심방 종괴를 진단받은 임상 1례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Right atrial metastasis occurs in 1 to 4% of patients with hepatoma, and the extension to intracavitary of metastasis of a tumor as a large mass rate. However, the high risk of progressive heart failure and sudden death from the tricuspid valve obstruction necessitates prompt diagnosis of intracavitary extension, and adequate intervention is needed to prolong a patient's life. A 49 year-old female was referred to our hospital for further evaluation of a liver mass, which was identified at a local clinic. The liver mass was confirmed as hepatocellular carcinoma with CT and celiac angiographic findings. She was treated with transarterial chemoembolization. Thirty-four months after discharge, a low density right atrial mass was noted incidentally with chest computed tomography while investigating a massive right pleural effusion for possible pulmonary metastasis. Echocardiography showed a huge inhomogenous echogenic mass at the right atrium. The present report describes a case of primary hepatocellular carcinoma with a intracavitary cardiac mass detected with two dimensional echocardiography.
박찬원,전찬민,박희석 강원대학교 정보통신연구소 2004 정보통신논문지 Vol.8 No.-
A wearable electrodiagram(ECG) monitoring system is a widely used non-invasive diagnostic tool for ambulatory patients who may be at risk from latent life-threatening cardiac abnormalities. In this paper. we have a portable ECG monitoring system with conductive fiber characterized by the small-size and the low power consumption. The system consists of conductive fibers, one-chip microcontroller, ECG preprocessing circuit, and monitoring software to record and analyze in PC. ECG preprocessing circuit is made of pre-amplifier with gain of 10, band-pass filter with bandwidth of 0.5-120% and 2.5V offset circuit for A/D conversion. ECG signals obtained by sensor are corrupted by noises such as a baseline wandering, 60Hz power noise and interference noise by body movement. For cancellation of noises in signals obtained by conductive fiber, we used the wavelet decomposition of wavelet transforms in MATLAB toolbox.
Protein Chip-based GLP-1 Receptor Assay System
박찬원,강인철 한국바이오칩학회 2014 BioChip Journal Vol.8 No.3
We investigated GLP-1 Receptor (GLP-1R) assay system on the basis of receptor-ligand interactionusing ProteoChip. GLP-1R was immobilized onthe surface of the ProteoChip and then GLP-1 peptidelabeled with a Cy5-fluorescent dye was interacted withthe GLP-1R array on the chip in a dose-dependentmanner. Exendin-4 was tested for targeting GLP-1Rto demonstrate the chip-based GLP-1R assay system. Chemical compound 6 and 45 were screened as novelagonists of GLP-1R using the GLP-1R assay system. The compound significantly inhibited GLP-1 bindingto GLP-1R in a dose-dependent manner. The proteinchip-based GLP-1R assay system will serve as a usefultool for screening of novel GLP-1R agonists.
산부식가공의치(酸腐植架工義齒)의 금속피착면(金屬被着面)에 관(關)한 연구(硏究)
박찬원,Park, Charn-Woon 대한치과보철학회 1991 대한치과보철학회지 Vol.29 No.2
The purpose of this study was to evaluate the tensile bond strengths of treated alloy surfaces for resin bonded retainers. For the experiment metal surfaces of 5 alloys were teated with sandblasting, Silicoating Rocatec, and cemented with Visio-Gem. All specimens divided into two groups. The group I specimens were treated with 24-hour immersion in $37^{\circ}C$ distilled water, and group II specimens were teated with 1500 thermo-cycles from $5^{\circ}C\;to\;55^{\circ}C$. The obtained results were as follows: 1. Bond strength values showed significantly different between sandblasting group and other groups after a 24-hour immersion in $37^{\circ}C$ distilled water(P<0.05). 2. All samples were fractured during thermo-cycles for sandblasting group, and bond strength values for Silicoating and Rocatec groups showed significantly different after 1500 thermo-cycles from $5^{\circ}C\;to\;55^{\circ}C$.
강형구,이종호,안광희,이충호,박찬원 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-
A smart pressure measurement system is described, which provides a precise A/D conversion and is highly suitable for communication with microprocessors. In order to avoid unstable problems of remote pressure sensing we have developed a new interface board which performs the A/D conversion and smart signal processing of the measured pressure data Serial communication software which is based on ASCII code commands is also developed to process initial setup an calibration functions as well as multi-drop communication with PC. The test and evaluation of the proposed system has been shown as having the better performance compared to the other types of existing pressure measuring systems and will give good applications to the industrial use where a highly precision remote sensing is needed.
박찬원 강원대학교 정보통신연구소 2013 정보통신논문지 Vol.17 No.-
This work presents a signal processing device for relative humidity sensor which is made with a CNT(carbon nanotube) thin films. Using this CNT humidity sensor, we also have successfully developed a small, sensitive signal processing device for relative humidity detector, that is a module for accurate air quality monitoring systems in building HVAC(heating, ventilating, and air conditioning) system and automotive applications. This paper shows the sensor signal conditioning and processing device for humidity sensor application by developing a hardware of the circuit for CNT humidity sensor, and a software for its control and sensor signal processing. The experimental results show that this technique is effective in utilizing the performance of the humidity sensor signal processing device.
단일칩 마이크로컨트롤러를 이용한 차압식 유량제어기의 개발
박찬원,김현식,주용규 江原大學校 産業技術硏究所 2002 産業技術硏究 Vol.22 No.A
In this paper, a Exhaust Flow Controller (EFC) technology for uniform application of film coater and developer device is introduced that spread and remove photo resister at semiconductor manufacturing process. Because developed EFC device uses differential pressure sensing method as a differential flow meter and embodied smart A/D conversion by using a one chip microprocessor and devised by feedback Servo control, it has shown excellent performance and stability evaluation, as maximum 2000L/min flow, capability of installation to actual semiconductor equipment.