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조현욱,김명수,정은환,유재휘,윤병주 명지대학교 공학기술연구소 1986 공학기술연구소 논문집 Vol.1 No.-
One of protection methods for computer internal data is to pursue data flow in program and to control its flow. In this thesis, we propose a mechanism which guarantees secure information flow in a program. By investigating security classes of all the variables in a statement and judging necessary condition for secure information flow, proposed model descriminates the program whether it is secure or not. Out model can be implemnted at language translation time, particularly semantic analysis phase, by pursuing security class transfer of each statement.
신현철,윤철호,김종대,정지천,신억섭,허근 한국한의학연구원 1997 한국한의학연구원논문집 Vol.3 No.1
In convulsion state by PTZ in rat, anticonvulsive effect and some γ-aminobutyric acid (GABA)-related mechanisms of Bythus extract in brain was experimented. It was ingibited GABA-T activity, lipid peroxide generation and xanthine oxidase activity as scheduled administration in vitro and vivo. And the content of brain gutathione was increased as scheduled administration in rat. In convulsion state by PTZ of previously managed rat by Buthus extract, onset eime and duration were non-specific changes but recovery time and severity was remarkably reduced. In conclusion speculated that Buthus extract inhibits convulsion by control of GABA content in brain.
A Case of Idiopathic Aortitis with Left Renal Vein Thrombosis
Hyeon Jeong Yun,Jin Uk Jeong,Jong Ho Shin,Jin Ho Choi,Young Min Na,Jin Cheol Myeong,Ki Tae Bang 순천향대학교 순천향의학연구소 2014 Journal of Soonchunhyang Medical Science Vol.20 No.2
A 38-year-old man was admitted to the hospital because of abrupt left flank pain. He had no fever and physical examination revealed tenderness of the left costovertebral angle. Laboratory data revealed white blood cell 16,060/μL, C-reactive protein 0.93 mg/ dL. Urinalysis showed more than 1/2 red cells per high-power field with severe proteinuria (4+). Enhanced computed tomography (CT) showed the thickened abdominal aorta wall with partial thrombus. The thickened aorta wall compressed the left renal vein and it caused left renal vein thrombosis. Abdominal CT findings suggested aortitis of the abdominal aorta with complication of left renal vein. We could exclude other types of aortitis including autoimmune aortitis, Takayasu’s arteritis, giant cell arteritis, and infectious causes based on a serologic test and the history of the patient. Therefore, the patient was diagnosed with idiopathic aortitis and treated with glucocorticoid. After treatment, his symptoms disappeared and a follow-up CT showed decreased mural thickening of the abdominal aorta. Isolated idiopathic aortitis presented with renal vein thrombosis is extremely rare and has not been reported in Korea yet. We present a rare case report on idiopathic aortitis of the abdominal aorta with complication of left renal vein thrombosis.
이정욱 ( Jeong Uk Lee ),서정교 ( Jeong Kyo Seo ),신윤섭 ( Yun Sup Shin ),박진무 ( Jin Moo Park ),정미현 ( Mi Hyeon Jeong ),최인호 ( In Ho Choi ) 정보저장시스템학회 2005 추계학술대회논문집 Vol.2005 No.-
Near field recording (NFR) technology with SIL has been thought as the most promising generation optical storage device. A gap distance between the SIL and the disc should be controlled to be 20~40nm. We observed gap error signal in our NFR test-bed using a blue LD (405nm). The digital gap servo filter and control algorithm were developed to maintain a constant air gap by adopting a conventional actuator.
Mi Jin Jeong,Hyun Jin Song,Seon Jeong Sim,Yeong Rong Seo,Hyeon Jeong Im,Gang Uk Suh,Chandrakant. S. Karigar,Myung Suk Choi 경상대학교 농업생명과학연구원 2015 농업생명과학연구 Vol.49 No.1
The effects of seed soaking treatment with the solutions of plant growth regulators IAA, GA3 and BAP on seed germination and shoot and bulb growth of Allium victorialis var. platyphyllum (Korean wild garlic) were determined. A significant variation in the seed germination rate was recorded at all treatments for various soaking periods. Maximum seed germination was obtained when seeds were soaked in IAA or GA3 solution at 200 mg L-1. The MAP treated seeds started to germinate after 3 months. Among treatments, IAA was found to be most effective in improving seed germination, but further seedling growth was not correlated to the soaking time. Seed soaking in IAA or GA3 solution enhanced further growth of seedlings compared with water control treatment. Shoot and bulb growth was highest in GA3 treatments.
QPS 프로그램에서 Myocardial extract 적용에 따른 임상적 유용성 평가
윤종준,임영현,이무석,송현석,정지욱,박세윤,김재환,김정욱,Yun, Jong-Jun,Lim, Yeong-Hyeon,Lee, Mu-Seok,Song, Hyeon-Seok,Jeong, Ji-Uk,Park, Se-Yun,Kim, Jae-Hwan,Kim, Jeong-Uk 대한핵의학기술학회 2011 핵의학 기술 Vol.15 No.2
게이트 심근관류 SPECT의 정량적 평가를 위해 사용되는 자동화된 정량화 소프트웨어(AutoQUANT)는 획득 자료 처리과정에 따라 측정치 오차가 발생할 것으로 예상된다. 동일한 환자를 대상으로 다른 조건의 변화 없이 QPS (Quantitative Perfusion SPECT) 프로그램에서 Myocardial extract 전후에 따른 정량적 지표를 구하여 평가하고자 한다. 2010년 6월부터 2010년 12월까지 부산대학교병원 핵의학과에서 Tc-99m MIBI 게이트 심근관류 SPECT를 시행한 환자 중 51명(남:여=34:17, 평균나이 $66.45{\pm}9.92$)을 대상으로 하였다. 심근의 단축단면상을 이용하여 원형 관심영역은 배후영역을 제외한 심근영역에서 설정한 자료를 획득하였다. AutoQUANT를 이용한 QPS 프로그램에서 일과성허혈확장(Transient Ischemic Dilation, TID), 부하기 관류결손 범위율의 합(Extent of Stress Defect, ESD)과 부하기 관류점수 합(Summed Stress Score, SSS)을 구하여 비교 분석하였다. QPS 프로그램에서 Myocardial extract 적용 전과 적용 후 정량적 지표의 상관계수는 TID (r=0.98), ESD (r=0.99), SSS (r=0.99) 모두 좋은 상관관계를 보였다. 95% 신뢰수준에서 TID (p=0.78), ESD (p=0.31), SSS (p=0.19) 모두 통계적으로 유의한 차이가 없었다. 육안분석에서는 판독에 영향을 줄 수 있을 만한 영상의 차이는 발견할 수 없었다. QPS 프로그램에서 Myocardial extract 적용 전과 적용 후 정량적 지표(TID, ESD, SSS)는 모두 좋은 상관관계가 있다는 것을 확인할 수 있었고, 통계적으로 유의한 차이를 보이지 않았다. Myocardial extract 영상처리기법이 비교적 간단하여 심근관류 SPECT 영상의 질을 올릴 수 있을 것으로 사료된다. Purpose: As to analytical method of data, the AutoQUANT software in which it is used quantitative rating of the myocardial perfusion SPECT are reported that there is a difference. Therefore the measured value error of the mutual program is expected to be generated even if the quantitative analysis is made data of the same patient. The purpose of this study is to offer the comparative analysis of myocardial extract method in Quantitative Perfusion SPECT. Materials and methods: We analyzed the 51 patients who were examined by Tc-99m MIBI gated myocardial SPECT in nuclear medicine department of Pusan National University Hospital from June to December 2010(34 men, 17 women, mean age $66.5{\pm}9.9$). We acquired the extracted image in myocardial extract protocol. QPS program that uses the AutoQUANT software measured TID(Transient Ischemic Dilation), ESD(Extent of Stress Defect), SSS(Summed Stress Score). Then analyzed the results. Results: The correlation of appyling myocardial extract is TID(r=0.98), ESD(r=0.99), SSS(r=0.99). In the 95% confidence limit, there was no satistically significant difference(TID p=0.78, ESD p=0.31, SSS p=0.19). After blinding test with a physician for making a qualitative analysis, there was no difference. Conclusion: Quantitative indices in QPS program showed good correlation and the results showed no statistically signigicant difference. The variance between method was small. therefore, the functional parameters by each method can be used interchangeably. Also, we expect patient's satisfaction.
( Hyeon Hui Kang ),( Jin Young Mo ),( Song Hee Park ),( Jeong Uk Lim ),( Sang Haak Lee ),( Hwa Sik Moon ) 대한결핵 및 호흡기학회 2015 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.120 No.-
Introduction: Obstructive sleep apnea (OSA) causes chronic intermittent hypoxia (CIH). Several studies have shown that OSA is associated with liver injury. The purpose of this study was to investigate the proteins related to inflammation in liver subjected to CIH in conjunction with diet-induced obesity (DIO). Methods: Male C57BL/6J mice were fed a high fat or regular diet for 12 weeks and then exposed to CIH or room air for 4 weeks. And we assessed the level of inflammation in the liver tissue. The expression of NF-κB and MAP kinase (MAPK) were measured by Western blotting. Results: In DIO mice, CIH induced significant increase in the expression of NF-κB in liver, which occurred in the nuclear fraction. Compared with control mice, animals exposed to CIH showed increases in protein expression of Interleukin 1 ß (IL-lß), toll like receptor 4 (TLR4), myeloid differentiation primary response protein 88 (MyD88), phospho I kappa B (I-κB), and p-ERK activation in liver, which was augmented in DIO mice. There was no significant change in p38 MAPK and JNK activation in all groups. Conclusions: Exposure to CIH in DIO mice by simulating OSA patients leads to hepatic inflammation via TLR4/ MyD88/MAPK/NF-kB signaling pathways.