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이성호,육인수,진호,박수종,한정열,이대희,공경남,조승현,박영식,박장현,한원용,Lee, Sung-Ho,Yuk, In-Soo,Jin, Ho,Pak, Soo-Jong,Han, Jeong-Yeol,Lee, Dae-Hee,Kong, Kyung-Nam,Cho, Seung-Hyun,Park, Young-Sik,Park, Jang-Hyun,Han, Won-Yong 한국천문학회 2005 天文學論叢 Vol.20 No.1
The reimaging optics of the KASINICS (KASI Near Infrared Camera System) includes many transparent components like an entrance window, band-pass filters, and blocking filters. As observational targets or in-field background objects, bright stars may cause optical ghosts that can significantly degrade the system performance of the KASINICS. We estimated analytically the relative brightness of ghost components with respect to a point source and examined the effects of tilting optical components as a method of suppressing ghosts. We also performed numerical ray tracings including all the optical components and found the results are consistent with those of the analytic estimations. We conclude that the KASINICS will not suffer from significant ghost effects with appropriate anti-reflection coatings and fittings for the optical components.
항 내인자 및 항 벽측 세포 항체 양성을 보인 악성 빈혈 1 예
이록윤(Rok Yun Lee),박영석(Young Suk Park),한태호(Tae Ho Han),최조영(Jo Young Choi),강승식(Seung Sik Kang),박수종(Soo Jong Park),이정애(Jung Ae Lee),조성태(Sung Tae Cho),이재명(Jae Myung Lee),선덕재(Duk Jae Shun),정지영(Ji Young Jung 대한내과학회 1997 대한내과학회지 Vol.52 No.4
We present a case of pernicious anemia without history of operation in 52 year old female. She suffered from oral ulcer, gum bleeding, nausea, vomiting, and beefy tongue. She had dysesthesia on the both arm and foot, and hypesthesia of global and stocking type by neurologic examination. Laboratory findings were as follows: serum cobalamin 9.1 pg/mL (normal range: 180-710pg/mL), anti intrinsic factor antibody (strong positive), antiparietal cell Antibody 1:10 (positive), first stage of Schilling test (1.4%). The findings of peripheral blood and bone marrow were compatible with megaloblastic anemia. We report a case of pemicious anemia with positive anti intrinsic factor antibody and antiparietal cell antibody.
조승현,진호,남욱원,차상목,이성호,육인수,박영식,박수종,한원용,김성수,Cho, Seoung-Hyun,Jin, Ho,Nam, Uk-Won,Cha, Sang-Mok,Lee, Sung-Ho,Yuk, In-Soo,Park, Young-Sik,Pak, Soo-Jong,Han, Won-Yong,Kim, Sung-Soo 한국천문학회 2006 天文學論叢 Vol.21 No.2
We have developed a control electronics system for an infrared detector array of KASINICS (KASI Near Infrared Camera System), which is a new ground-based instrument of the Korea Astronomy and Space science Institute (KASI). Equipped with a $512{\times}512$ InSb array (ALADDIN III Quadrant, manufactured by Raytheon) sensitive from 1 to $5{\mu}m$, KASINICS will be used at J, H, Ks, and L-bands. The controller consists of DSP(Digital Signal Processor), Bias, Clock, and Video boards which are installed on a single VME-bus backplane. TMS320C6713DSP, FPGA(Field Programmable Gate Array), and 384-MB SDRAM(Synchronous Dynamic Random Access Memory) are included in the DSP board. DSP board manages entire electronics system, generates digital clock patterns and communicates with a PC using USB 2.0 interface. The clock patterns are downloaded from a PC and stored on the FPGA. UART is used for the communication with peripherals. Video board has 4 channel ADC which converts video signal into 16-bit digital numbers. Two video boards are installed on the controller for ALADDIN array. The Bias board provides 16 dc bias voltages and the Clock board has 15 clock channels. We have also coded a DSP firmware and a test version of control software in C-language. The controller is flexible enough to operate a wide range of IR array and CCD. Operational tests of the controller have been successfully finished using a test ROIC (Read-Out Integrated Circuit).
위암 및 Helicobacter pylori 감염의 위험인자로서 염분 섭취의 역할
경태영(Tae Young Kyong),김학양(Hak Yang Kim),채경수(Gyeoung Soo Chae),유희승(Hee Seung Yoo),박수종(Soo Jong Park),김종혁(Jong Hyeok Kim),장웅기(Woong Ki Chang),김용범(Yong Bum Kim),박충기(Choong Kee Park),남은숙(Eun Sook Nam),유재영( 대한내과학회 1998 대한내과학회지 Vol.55 No.2
Objectives: Gastric cancer is one of the most important malignancy of the gastrointestinal tract. High salt intake has been suggested as a risk factor of gastric cancer and promoting Helicobocter pylori infection. Few studies have been addressed about the relation between excessive salt intake and gastric cancer. This study was performed to investigate the relation of high salt intake to H. pylori infection and gastric cancer. Methods . Between May 1996 and July 19%, hospitalized patiaits with epigastric pain or dyspepsia were prospectively recruited. Patients with underlying diseases which could reduce kidney function were excluded. Salt consumption was estimated by the urine sodium to creatinine ratio(U-Na/Cr) on fresh single urine sample. Gastric cancer was diagnosed by endoscopic biopsies. H. pylori infection was evaluated by CLOtest. Gastric cancer was classified histologically by Lauren classification. Results: Ninety seven patients, 52patients with gastric cancer and 45patients with chronic gastritis were enrolled. There was no statistically significant difference in the sodium to creatinine ratio between gastric cancer group(173.60±123, range; 21-665.2) and chronic gastritis group(164.02±138, range; 20.4-482.7)(p=0.361). In gastric cancer, the sodium to creatinine ratio was not different between CLOtest positive and negative group(p=0.201), and among intestinal, diffuse and mixed type(p=0.419), either. Conclusion: This study does not support the causal relation of high salt diet on gastric carcinogenesis. There is no significant difference in H, pylori infection rate between CLOtest positive group and negative group.
Helicobacter pylori 감염이 있는 환자의 배우자에서의 감염빈도와 임상적 의의
김학양,유재영,박충기,김종혁,김용범,장웅기,김재삼,박수종 대한소화기학회 1998 대한소화기학회지 Vol.31 No.6
Background/Aims; The transmission mode of Helicobaeter pylori infection has not been definded. We investigated the seroprevalence of H. pylori infection in spouses of infected patients to clarify the transmission mode of H. pylori infection, Methods: Sera were collected from 26 spouses of infected patients and examined for H. pylori infection by serology. We compared the antibody responses to H. pylori proteins (CagA, VacA and urease subunits) in 5 couples. Results: H. pylori infection was observed in 20 out of 26 spouses (77%). The infection rate was increased from 50% in less than 10 years of cohabitation to 100% in more than 31 years of cohabitation. The gastroscopic exarnination for the infected patients revealed chronic gastritis in 6, gastric ulcer in 9, duodenal ulcer in 8, concurrent gastric and duodenal ulcer in 2, and gastric cancer in 1. In spouses, the gastroscopy showed chronic gastritis in 10 and pyloric canal ulcer with H. pylori infection in 1. The couple with pyloric canal ulcer showed similar antibody responses to CagA, VacA and urease subunits. Conclusions: This study suggested that H. pylori might be transmitted via oral to oral route. Further study about the risk of gastroduodenal lesion in spouses is needed.
Helicobacter pylori 감염을 동반한 T 림프구 기원의 원발성 위 림프종 1 예
남은숙,김학양,유재영,박충기,김종혁,김용범,박수종,유희승,김성균,허필석 대한소화기내시경학회 1999 Clinical Endoscopy Vol.19 No.2
The primary T-cell lymphoma of the stomach is a extremely rare disease, only about 33 cases were described in the literature since 1986. Recent studies have proved a strong relation between Helicobacter pylori infection and several gastric diseases such as peptic ulcer, chronic gastritis, gastric cancer, and lymphoma. We report a case of primary gastric T-cell lymphoma with H. pylori infection in a 63-year-old male who had a history of epigastric fullness for 2 years. Gastroscopy showed a round ulcer of 1cm in size on anterior side of gastric angle. The gastroscopic biopsy revealed diffuse large cell malignant non-Hodgkin' s lymphoma on light microscopic examination, and T-cell immunophenotype with immunohistochemical study. The result of CLOtest was positive. No lymphadeno-pathy was found with chest roentgenogram and computed omography of abdomen and pelvis. Bone marrow examination showed normal finding.