말티즈견에서 발생한 승모판폐쇄부전 1례

전소분,박혜연,김선아,정금선,이영원,박성준,김덕환,송근호 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-

A 10 years old, intact male, Maltese dog with clinical signs of labored respiration, exercise intolerance and increasing of coughing was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. Physical examination revealed tachycardia, panting and mild cyanosis. This case was diagnosed as mitral valve insufficiency by clinical signs, ascultation, blood chemistry, radiography and electrocardiography. This dog was treated with ACE inhibitor (enalapril), diuretics (furosemide) and bronchodilator (aminophylline) for 14 days. After treatment, clnical signs were disappeared and also this dog was needed to be continuous monitoring and sodium restricted diet.

대전광역시 사업체인지 변화 동향에 관한 연구

전승창,이건호 牧園大學校 建築·都市硏究센터 1999 建築·都市環境硏究 Vol.7 No.-

This study analyzes the locational distribution & change of the industrial establishment trend with the city is expanding to the suburb and activity of the downtown becomes severe. The results of this study are following this, First, industrial establishments are expanding to the area where under urban development projects. Second, in the industrial establishment respects, finance and insurance businesses are expanding to the new development area with keeping their existing enterprises. Whole sale and retails are moving from existing C.B.D area with weak competitive power to new development area with strong competitive power. In manufacturing industry respects, large scale manufacturing enterprises are keeping their places. Third, as a result of shift-share method, industrial establishments are moving from tong-gu and Chung-gu with weak competitive power to so-gu and yusung-gu where under new development.

개에서 말기 외이염의 내과적 치료 증례

전민경,윤기영,최호정,정성목,송근호,이영원,박성준 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2008 動物醫科學硏究誌 Vol.15 No.1

A 8-year-o1d castrated male Shit-tzu dog was presented with chronic, severe and recurrent bilateral otitis externa. Clinical signs were stenosis, swelling, severe discharges from external auditory canal and pruritus of the ear. A diagnosis of the patient was made based on history, Physical examination, otoscopic examination, cytological examination and radiography. The dog was diagnosed to end-stage otitis externa and followed by treatment with systemic cyclosporine administration and topical solution. Clinical symptoms were resolved after 4 weeks cyclosporine therapy.

개선된 Bridgman법으로 성장한 Bi₂Sr₂CaCu₂O_(8+δ) 單結晶의 초전도성

채건식,손인호,설정식,이수대,김영국,전동성,오재근,강성욱 경남대학교 환경문제연구소 1995 환경연구 Vol.17 No.-

The Bi₂Sr₂CaCu₂O_(8)+_(δ) single crystals are grown from the melt using a stoichiometric starting composition fer the cautions. The size and thickness of the Bi₂Sr₂CaCu₂O_(8)+_(δ) crystals depends on the cooling rate. The lower the cooling rate, the bigger and thicker the Bi₂Sr₂CaCu₂O_(8)+_(δ) crystals become. Bi₂Sr₂CaCu₂O_(8)+_(δ) X-ray diffraction(XRD) measurements of the single crystals were carried out using the radiation source of Cu Kα . In these Patterns only the (0,0,2n) diffraction appeared. The result indicated that the cleared surface of the single crystal was of the a-b face, and that the single crystal had a single phase without any undergrowth with 7K and 85K phases. In addition, although the figure is not shown, XRD patterns from (006) to (00□) were observed in the range of 2θ=0 to 60 degrees. The characterization of as-grown single crystals have been analyzed by Laue X-ray backsdattering along the c-axis and X-ray precession experiments. The result of magnetic moment vs Tc in 10 Gauss for a crystals were measurements indicated that the samples have a superconducting transition temperature of 85K.

대전시 주거지역 특성과 공간분포에 관한 연구 : 인구와 주택유형을 중심으로

이건호,전승창 목원대학교 건축도시연구센터 2003 建築·都市環境硏究 Vol.11 No.-

This is the basic research on characteristics of general residential area in Daejeon metropolitan city. This study are analyzing of relationships between population, household and housing type unit of small administrative 'tong' in Daejeon metropolitan city. The conclusion is followed as. First, the density of Jung-gu and Dong-gu - old C.B.D in and around Daejeon station, is steeply low to 200(population/ha) and there are so many areas that the ratio of detached house is over 80%. And then there are so many high density(over 400population/ha) residence areas in Seo-gu and Yuseong-gu, developed areas with apartment house. Secondary, the average density of household in Daejeon is analyzed to 99 (household/ha). It's density in new developed area with apartment house, is reach to 300~400 (household/ha). But that of else most area is lower then 100(household/ha). Third, population per household in Jung-gu and Dong-gu is lower 3.13(Daejeon mean value), and then that of Seo-gu, Yusung-gu and Daedeok-gu are higher then Daejeon's. Finally, population per household of detached house is 2.5 -3.5, and then that of apartment house is over 3.5, but that of row house is below 2.5.

Protective Effect of Baicalin Against Carbon Tetrachloride–Induced Acute Hepatic Injury in Mice

Park, Sang-Won,Lee, Chan-Ho,Kim, Yeong Shik,Kang, Sam Sik,Jeon, Su Jin,Son, Kun Ho,Lee, Sun-Mee The Japanese Pharmacological Society 2008 JOURNAL OF PHARMACOLOGICAL SCIENCES Vol.106 No.1

<P>This study examined the effects of baicalin, a bioactive flavonoid isolated from <I>Scutellariae Radix</I>, on carbon tetrachloride (CCl<SUB>4</SUB>)-induced liver injury. Mice were treated intraperitoneally with 0.5 ml/kg CCl<SUB>4</SUB> and different groups of animals received 25, 50, 100, and 200 mg/kg baicalin. At 24 h after the CCl<SUB>4</SUB> treatment, the level of serum aminotransferases and lipid peroxidation was significantly elevated, whereas the hepatic glutathione content was decreased. These changes were attenuated by baicalin. The histological studies showed that baicalin inhibited the portal inflammation, centrizonal necrosis, and Kupffer cell hyperplasia, which are the three most common characteristics of CCl<SUB>4</SUB>-induced liver damage. The serum level and mRNA expression of tumor necrosis factor-α were markedly increased by the CCl<SUB>4</SUB> treatment but suppressed by baicalin. The mRNA and protein expression levels of inducible nitric oxide synthase and heme oxygenase-1 increased significantly at 24 h after the CCl<SUB>4</SUB> treatment. Baicalin attenuated the increase in the protein and gene expression of inducible nitric oxide synthase but augmented the increase in those of heme oxygenase-1. These findings suggest that baicalin protects hepatocytes from the oxidative damage caused by CCl<SUB>4</SUB>, and this protection is likely due to the induction of HO-1 expression and the inhibition of the proinflammatory mediators.</P>

A novel adipokine CTRP1 stimulates aldosterone production

Jeon, Jun Ho,Kim, Kun‐,yong,Kim, Jae Hyeong,Baek, Ahmi,Cho, Hyungin,Lee, Young Ho,Kim, Jong Wan,Kim, Dohee,Han, Seung Hyun,Lim, Jong‐,Seok,Kim, Keun Il,Yoon, Do Young,Kim, Soo‐,Hyun Federation of American Society for Experimental Bi 2008 The FASEB Journal Vol.22 No.5

<P>Complement-C1q TNF-related protein 1 (CTRP1), a member of the CTRP superfamily, is expressed at high levels in adipose tissues of obese Zucker diabetic fatty (fa/fa) rats, and CTRP1 expression is induced by proinflammatory cytokines, including TNF-alpha and IL-1beta. In the present study, we investigated stimulation of aldosterone production by CTRP1, since it was observed that CTRP1 was specifically expressed in the zona glomerulosa of the adrenal cortex, where aldosterone is produced. Increased aldosterone production by CTRP1 in cells of the human adrenal cortical cell line H295R was dose-dependent. Expression levels of aldosterone synthase CYP11B2 were examined to investigate the molecular mechanisms by which CTRP1 enhances the production of aldosterone. The expression of CYP11B2 was greatly increased by treatment with CTRP1, as was the expression of the transcription factors NGFIB and NURR1, which play critical roles in stimulation of CYP11B2 gene expression. It was also revealed that angiotensin II-induced aldosterone production is, at least in part, mediated by the stimulation of CTRP1 secretion, not by the increase of CTRP1 mRNA transcription. In addition, the levels of CTRP1 were significantly up-regulated in hypertensive patients' serum. As CTRP1 was highly expressed in obese subjects as well as up-regulated in hypertensive patients, CTRP1 may be a newly identified molecular link between obesity and hypertension.</P>

Missing Pattern Analysis of the GOCI-I Optical Satellite Image Data

Jeon, Ho-Kun,Cho, Hong Yeon Korea Institute of Ocean ScienceTechnology 2022 Ocean and Polar Research Vol.44 No.2

Data missing in optical satellite images caused by natural variations have been a crucial barrier in observing the status of marine surfaces. Although there have been many attempts to fill the gaps of non-observation, there is little research to analyze the ratio of missing grids to overall sea grids and their seasonal patterns. This report introduces the method of quantifying the distribution of missing points and then shows how the missing points have spatial correlation and seasonal trends. Both temporal and spatial integration methods are compared to assess the effectiveness of reducing missing data. The temporal integration shows more outstanding performance than the spatial integration. Moran's I and K-function with statistical hypothesis testing show that missing grids are clustered and there is a non-random distribution from daily integration. The result of the seasonality test for Moran's I through a periodogram shows dependency on full-year, half-year, and quarter-year periods respectively. These analysis results can be used to deduce appropriate integration periods with permissible estimation errors.

Development of a Collision Risk Assessment System for Optimum Safe Route

Ho-Kun Jeon,Yun-Chul Jung 해양환경안전학회 2018 해양환경안전학회지 Vol.24 No.6

선박의 통행량이 많은 연안해역은 선박들 사이에 복잡한 조우상황이 자주 발생하기 때문에 충돌사고의 가능성이 높다. 따라서 해상에서 충돌사고를 줄이기 위해서는 항해사의 국제충돌예방규칙(COLREG) 준수에 더하여 정량적인 충돌위험평가가 요구된다. 본 연구에서는 선박의 계획항로에 대한 충돌위험을 평가하기 위한 새로운 충돌위험도 평가시스템이 개발되었다. 먼저 기존의 충돌위험 평가모델들을 검토함으로써 적절한 충돌위험 평가방법이 제시되었다. 시스템은 MATLAB을 사용하여 개발되었으며 해도, 범퍼 및 평가의 세 부분으로 구성된다. 개발된 시스템은 시험을 위해 간단한 계산조건으로 시험해역에 적용되었으며, 그리고 검증을 위해 실제 계산조건으로 실제해역에 적용되었다. 그 결과 충돌위험은 자선의 길이, 항해시간 및 항로 등에 의해 영향을 받는 것으로 나타났다. 개발된 시스템은 항해사가 출항전 최적안전항로를 선택하는데 도움을 줄 수 있을 것으로 기대된다. In coastal waters where the traffic volume of the ship is high, there is a high possibility of a collision accident because complicated encounter situations frequently occurs between ships. To reduce the collision accidents at sea, a quantitative collision risk assessment is required in addition to the navigator's compliance with COLREG. In this study, a new collision risk assessment system was developed to evaluate the collision risk on ship’s planned sailing routes. The appropriate collision risk assessment method was proposed on the basis of reviewing existing collision risk assessment models. The system was developed using MATLAB and it consists of three parts: Map, Bumper and Assessment. The developed system was applied to the test sea area with simple computational conditions for testing and to actual sea areas with real computational conditions for validation. The results show the length of own ship, ship’s sailing time and sailing routes affect collision risks. The developed system is expected to be helpful for navigators to choose the optimum safe route before sailing.

위성기반 Chl-a자료 공간보간 및 예측 방법 연구: 독도주변해역을 중심으로

전호군(Jeon, Ho-Kun),조홍연(Cho, Hong Yeon) 한국측량학회 2021 한국측량학회 학술대회자료집 Vol.2021 No.11

해색위성원격탐사기술은 상시 현장관측이 어려운 넓은 해양에 대해 지속적인 자료를 제공하는데 기여하고 있다. 그러나 해색위성은 해수표면과 위성사이에 위치한 구름에 의해 간섭을 많이 받으며 이로 인한 결측은 해양현상 모니터링에 부정적인 영향을 미친다. 이 연구에서는 국가해양위성센터에서 운영 중인 천리안1호(GOCI-1) 기반 Chl-a 생산물에 대해 보간과 예측하는 방법과 결과를 제시 및 비교한다.