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개에 있어서 심장사상충증을 동반한 창상성 횡격막 허니아의 수술적 치료 1례
조승혁,임영환,손정민,노경완,박창식,전무형,김명철,송근호,정성목 충남대학교 형질전환복제돼지연구센터 2007 논문집 Vol. No.10
A 7-month old. castrated male Shih-tzu dog was referred to the Veterinary Medical Teaching Hospital of Chungnam National University with history of depression. dyspnea. mild scale. tachypnea. exercise intolerance and severe leanness. On physical examination. cardiac arrhythmias was heard and heart worm ELISA test was positive. Microfilaria was found on the direct blood smear. Survey radiographs showed loss of diaphragmatic line and cardiac silhouette. displacement of lung fields and presence of gas filled intestines in the thoracic cavity. Rib fracture and pelvic fracture with callus formation were found incidentally. On the basis of physical examination and radiographic findings. it was diagnosed as traumatic diaphragmatic hernia and heart worm disease. Herniorrhaphy was performed. Postoperatively. it was treated for heart worm disease and scale. There is no evidence of recurrence of diaphragmatic hernia and heart worm disease over 1 year.
李淳赫,趙成甲 충북대학교 농업과학기술연구소 1991 農業科學硏究 Vol.9 No.2
Derivation of probable drought flow was attempted for getting the hydrologic design criterion of various hydraulic structures which can be contributed to the planning of water utilization. Weibull distribution was used for the analysis of drought flow frequency with annual drought flow of three watersheds at Geum, Nak Dong and Yeong San river basin. The results were analyzed and summarized as follows. 1.Basic statistics were calculated for the analysis of extremal distribution to the research watersheds. 2.Necessary parameters were derivated by weibull distribution for the research watersheds. 3.Formulas for the probable drought flow were derivated by the method of weibull distribution and probable drought flow for the applied watersheds were calculated by above mentioned formulas to the return periods of 2, 5, 10, 20, 50 and 100 years. 4.Probable drought flows by weibull method were shown to be much closer to the observed at the research watersheds in general. 5.It is to be desired that weibull distribution used in this study would be compared with other transformation methods for getting the drought flow could be acknnowleged as it estimated in accurate.
개에 있어서 심장사상충증을 동반한 창상성 횡격막 허니아의 수술적 치료 1례
조승혁,임영환,손정민,노경완,박창식,전무형,김명철,송근호,정성목 忠南大學校 獸醫科大學 動物醫科學硏究所 2005 動物醫科學硏究誌 Vol.13 No.-
A 7-month old, castrated male Shih-tzu dog was referred to the Veterinary Medical Teaching Hospital of Chungnam National University with history of depression, dyspnea, mild scale, tachypnea, exercise intolerance and severe leanness. On physical examination, cardiac arrhythmias was heard and heart worm ELISA test was positive. Microfilaria was found on the direct blood smear. Survey radiographs showed loss of diaphragmatic line and cardiac silhouette, displacement of lung fields and presence of gas filled intestines in the thoracic cavity. Rib fracture and pelvic fracture with callus formation were found incidentally. On the basis of physical examination and radiographic findings, it was diagnosed as traumatic diaphragmatic hernia and heart worm disease. Herniorrhaphy was performed. Postoperatively, it was treated for heart worm disease and scale. There is no evidence of recurrence of diaphragmatic hernia and heart worm disease over 1 year.
Dual-mode waveguiding of Raman and luminescence signals in a crystalline organic microplate
Jo, Seong Gi,Park, Dong Hyuk,Kim, Bong-Gi,Seo, Sungbaek,Lee, Suk Joong,Kim, Jeongyong,Kim, Jinsang,Joo, Jinsoo The Royal Society of Chemistry 2014 Journal of materials chemistry. C, Materials for o Vol.2 No.30
<P>We demonstrate dual-mode waveguiding of Raman and luminescence signals using π-conjugated organic 1,4-bis(3,5-bis(trifluoromethyl) cyanostyryl)-2,5-dibromobenzene (CN-TSDB) microplates with single-crystal structure. The output Raman and photoluminescence (PL) spectra through the CN-TSDB microplates were recorded as a function of propagation distance using a high-resolution laser confocal microscope (LCM). Under 633 nm Raman excitation, which is outside the optical absorption of the microplates, the characteristic Raman modes of C-Br, -CF3, and -CC- aromatic stretching were clearly observed at the output points. The decay characteristics of the LCM Raman intensities were comparable to those of LCM PL intensities. The intermolecular π-π interaction of CN-TSDB has been enhanced by the attractive interaction between the CN group and Br atoms, which induces efficient polariton propagation and plays an important role in dual-mode waveguiding.</P>
박성언(Seong-Eon, Park),황민철(Min-Cheol, Whang),조유섭(You-Seop, Jo),김시평(Si-Pyeong, Kim),한지영(Ji-Young, Han),오진혁(Jin-Hyuk, Oh),이하나(Ha-Na, Lee),김서연(Seo-Yeon, Kim) 한국HCI학회 2017 한국HCI학회 학술대회 Vol.2017 No.2
최근 가상현실 체험을 위한 관련 기기 개발과 콘텐츠 산업 시장이 성장하고 있다. 이에 따라 가상현실의 대중화 속도도 빨라지고 있다. 하지만 게임에 치우쳐진 콘텐츠 비중, 전용기기 착용의 불편함, 장시간 체험 시 어지럼증이 유발된다는 한계점을 가지고 있다. 이에 본 연구는 ‘실제공간의 가상화’라는 가상현실 체험 방식을 제안하고, 다감각을 활용하여 사용자의 감성을 증강 혹은 회복시킬 수 있는 응용 시스템을 개발함으로써 새로운 방향의 가상현실 체험을 시도한다. 본 시스템은 뇌파(EEG: Electroencephalogram), 심혈관반응(PPG: Photoplethysmography) 그리고 얼굴표정을 포함하는 생리반응을 측정하여 사용자의 감성을 인식한다. 이에 근거하여 시스템은 사용자의 감성을 증강시킬 것인지 혹은 회복시킬 것인지를 판단한다. 판단 후에는 사용자가 위치하는 공간이 시각, 청각, 촉각의 인위적 자극을 통해 가상의 공간으로 재생산되며, 이 콘텐츠는 사용자의 감성을 유도한다. 본 시스템은 어지럼증 유발을 최소화하기 위해 HMD 를 요구하지 않는 실 공간에 대해 공간의 가상화를 시도했고, 감성기반 콘텐츠 제작을 통해 기존의 게임콘텐츠들과 차별성을 두었다. 향후 시각, 청각, 촉각과 더불어 후각 자극 또한 포함하여 가상현실이 궁극적으로 추구하는 감각 융합에 도달해야 한다. 추후 연구를 통해 정교한 감성 분석이 이루어진다면, 다양한 콘텐츠 개발도 기대할 수 있다.
ST - 분절의 하강에 R - 파고의 변화를 추가한 운동부하 심전도 검사의 관상동맥 질환에 대한 진단적 가치
박성미(Seong Mi Park),노영무(Young Moo Ro),정성원(Seong Won Jeong),신정호(Jeong Ho Shin),김진석(Jin Seok Kim),이호준(Ho Joon Lee),송우혁(Woo Hyuk Song),박창규(Chang Kyu Park),김영훈(Young Hoon Kim),서홍석(Hong Seog Seo),심완주(Wan Jo 대한내과학회 2002 대한내과학회지 Vol.62 No.2
Background: Exercise electrocardiogram is the most widely used non-invasive test in those patients suspected of having coronary artery disease. However, sensitivity and specificity of this test are not satisfactory, especially when the exercise induced ST-segment depression is used as a single criterion of myocardial ischemia. Although many investigators have tried to improve diagnostic accuracy with R-wave amplitude change in addition to ST-segment depression, controversy exists whether this new criteria improve the test accuracy for coronary artery disease or not. The purpose of this study is to determine the test accuracy of R-wave amplitude change induced by exercise combined with the conventional ST-segment criterion for myocardial ischemia. Methods: We reviewed our records of patients who visited to Korea University Anam Hospital with chest pain from January, 1998 to July, 1999. We included 130 patients with chest pain who had a tredmill test followed by a coronary angiography within 2 months. Patients with change in ST-segment depression (ΔSTD)≥1.00 mm and ΔSTD≥1.00 mm with R wave amplitude decrease (-ΔR)≥1.00 mm in the same lead in any of 12 leads and ΔSTD≥1.00 mm with R wave amplitude increase (+ΔR)≥1.00 mm in the same lead in any of 12 leads were compared. According to the findings of coronary angiograms, patients were divided into 4 groups ; normal coronary artery group, mild coronary artery stenosis group (≥30% to <50%), moderate coronary artery stenosis group (≥50% to <70%), severe coronary artery stenosis group (≥70%). Results: Fifty three patients (40.7%) had normal coronary angiograms and 77 patients (59.3%) had coronary artery stenosis. There was no significant difference in gender and age. But, patients with coronary artery stenosis had more diabetes mellitus, hyperlipidemia, smoking, previous myocardial infarction history and angina during exercise testing than those without coronary artery stenosis. The sensitivity of exercise EKG is significantly decreased when combined withΔR (ΔSTD, 74.0%, ΔSTD with -ΔR, 45.5%, ΔSTD with +ΔR, 30.0%, p<0.01), but the The test accuracy is ΔSTD; 73.7%, ΔSTD with -ΔR; 61.5%, ΔSTD with +ΔR; 57.7%. Conclusion: When ST-segment depression is combined with R-wave amplitude change as a marker for myocardial ischemia, the specificity is increased, but the test accuracy of exercise EKG is not improved.(Korean J Med 62:165-170, 2002)