Cholelithiasis complicated with biliary sludge and urolithiasis in a dog

Seung-gon Lee,Dong-gun Kim,Joon-seok Lee,Ho-hyun Kwak,Hyun-sook Nam,Heung-myong Woo*, In-Chul Park**, Changbaig Hyun1,In-chul Park,Chang-baig Hyun 한국임상수의학회 2006 한국임상수의학회지 Vol.23 No.3

A 10-year-old intact female Miniature Schnauzer dog was referred with the primary complaint of persistentanorexia, remittent fever, vomiting and abdominal pain. Hemogram suggested a chronic inflammatory disease. Serumbiochemistry showed moderate hepatobiliary cellular damage with severe cholestasis. Abdominal radiography andultrasonography revealed hepatomegaly, choleliths and sludges in gall bladder and small stones in urinary bladder. Basedcholecystectomy and cystectomy, choleliths and uroliths were removed from gall bladder and urinary bladder,respectively. The clinical condition was dramatically improved after surgery.

양방향 PWM Sepic/Zeta 컨버터 설계

김현곤,이동희 경성대학교 공학기술연구소 2012 공학기술연구지 Vol.18 No.-

본 논문에서는 전력 용량 10kW급의 새로운 양방향 PWM Sepic/Zeta 회로를 사용한 컨버터를 제안한다. 이 회로를 설계하고, 이 컨버터의 설계가 동작 가능한지에 Matlab의 Simulink를 사용하여 시뮬레이션 하였다.

남북간 교역에 있어 경제적 요인과 질적ㆍ제도적 요인의 함의와 영향

신현곤 연세대학교 경제연구소 2001 延世經濟硏究 Vol.8 No.1

본 연구는 지난 1988년 이후부터 시작된 남북간 교역을 남한기업의 효용극대화 문제로 해석하고, 남북교역을 결정하는 경제적ㆍ질적 변수를 고려한 교역방정식을 추정하고자 하였다. 추정 결과, 남북간 교역도 남한의 경기수준에 의해 크게 영향을 받는 것으로 나타나고 있으며, 환율의 탄력성이 GDP탄력성보다 높은 것으로 나타나 남북간 교류에서도 환율이 중요한 결정요인인 것으로 분석되었다. 또한 질적 측면에서 북한의 개방수준 확대에 따른 접촉빈도 증가가 남북교역규모 확대에 유의적인 것으로 나타난 반면, 남북한간 교역관련 제도화가 완전히 이루어지지 않은 상태에서 본 연구에서 검토한 몇 차례에 걸친 대북 개방정책 자체는 남북교역규모 확대에 뚜렷한 유의적인 결론을 제시하지 못하고 있다.

갑상선 미세 유두상 암의 임상적 특징

나병곤,배학연,조현진,김권천 朝鮮大學校 附設 醫學硏究所 2008 The Medical Journal of Chosun University Vol.33 No.3

Purpose: Papillary thyroid microcarcinoma (PTMC) is increasing in incidence because of ultrasound-guided fine-needle aspiration cyology (FNA). According to WHO, PTMC is defined as a papillary thyroid cancer of 1 cm or less in diameter. Within the group of patients with PTMC, prognosis is known to be very favorable. This study was carried out to evaluate the clinicohistological characteristics of PTMC and to determine a reasonable extent of surgery for them. Methods: From Mar. 2002 to Dec. 2007, 610 patients with thyroid diseases underwent thyroidectomy at Chosun University hospital. Among these patients, 205 patients (33%) had a thyroid papillary carcinoma less than or equal to 1 cm in great diameter. The clinicopathologic features and treatment outcome of these patients were evaluated retrospectively. Results: In the period 2002-2007, PTMC incidence rate in our institution increased from 10% to 20%. There were 19 men and 186 women with a median age of 46 years (range; 16-74). PTMC diameter ranged from 0.1 to 1 cm. (mean 0.54 cm) 15.7% of patients with PTMC presented with preoperative symptoms (palpable mass, fatigue, pain, hoarseness). Preoperatively 84.3% of these 205 cases were diagnosed by ultrasonography. We performed unilateral lobectomy (41%), near total thyroidectomy (44%), and total thyroidectomy (11%) with or without central compartment neck node dissection. During a mean follow-up of 36 months, 5 patients (2.4%) developed locoregional recurrence with no distant metastasis. There were no significant difference on recurrence rate by size, capsular invasion. But multiplicity of primary tumor has a higher locoregional recurrence rate (p= 0.04). The detection rate of PTMC is increasing due to FNA technique in our hospital. This study shows that PTMC may have capsular invasion, lymph node involvement, multiplicity and locoregional recurrence likely to larger (>1 cm) papillary carcinoma. Conclusion: We suggest that total or near total thyroidectomy with central compartment neck dissection is proper therapeutic operation for PTMC and modified neck dissection shoud be performed if lateral neck lymph node are enlarged or diagnosed as metastatic tumor.

韓國에 있어서의 佛文學 : 그 導入, 影饗 및 硏究

金賢坤 全南大學校 人文科學硏究所 1972 용봉인문논총 Vol.1 No.-

P. Valery의 Fragments du Narcisse와 Amphion에 있어서의 존재론적 思考(Ⅰ)

金賢坤 全南大學校 人文科學硏究所 1990 용봉인문논총 Vol.19 No.-

불소농도가 인공우식 범랑질의 재석회화에 미치는 영향

윤현두,백병주,김재곤 大韓小兒齒科學會 1996 大韓小兒齒科學會誌 Vol.23 No.1

The purpose of this study was to evaluate the remineralized effect of fluoride on artificial carious enamel after topical fluoride application and to certificate the most appropriate fluoride concentration. Artificial demineralized bovine enamel blocks were randomly assigned to four groups, and placed in fluoride, 100, 5,000 and 12,000ppm acidulated phosphate fluoride solution. Sound enamel blocks without artificial carious lesion were used as control group. In this study, the morphological characteristics of treated enamel surface and effect of fluoride concentration on remineralization of artificial carious enamel has been investigated by using scanning electron microscopy, chemical analysis and electron probe microanalysis compared with the effect of various fluoride concentration. The Following results were obtained. 1. The enamel surface treated with 100ppm APF was observed more demineralized surface with lots of holes and loosely bounded a few globules. 5,000ppm APF treatment produced a deposits of numerous spherical globules 0.5∼1㎛ in diameter and distinctive rectangular and cuboidal shaped deposits were formed by 12,000ppm APF treament. 2. Amount of KOH-soluble fluoride on enamel surfaces was increated according to treated fluoride concentration level. In the Ⅳ and Ⅴ group were showed significantly higher than that in the Ⅲ group(p<0.05). 3. After treatment with 5,000 and 12,000ppm APF, a remarkable elevation of the fluoride profile was observed within 30㎛ of the outermost layer and was accompanied simultaneously by a high elevation of the calcium profile. However, specimens treated with 100ppm APF showed only a small elevation of fluoride within whole depth than that in the sound and demineralized enamel specimens. 4. In the Ⅳ and Ⅴ group, Ca/P weight percent ratio were showed higher than that in the Ⅰ, Ⅱ, Ⅲ group in 5 and 15㎛ depth, and fluoride content were showed statistically different than that in the Ⅰ, Ⅱ, Ⅲ group in all depth(p<0.05).

와동내에 조사된 열의 전도양상에 관한 연구

윤현두,허선,김재곤,이두철,백병주 大韓小兒齒科學會 1998 大韓小兒齒科學會誌 Vol.25 No.3

The purpose if this study was to evaluate temperature change occurred in enamel, dentin and pulp due to the heat from cavity prepration with laser. We made three models had different cavity depth : cavity depth of model Awas 3.52mm, model B was 2.32mm, model C was 1.16mm. We irradiated cavity base with thermal capacity of 30J,100J,300J/㎤s during few seconds and studied the change of temperature in tooth during 10 seconds, and estimated change of thermal capacity by different irradiated site and exposure time. AT 300j/㎤s irradiation for 2 seconds, the temperature of irradiated surface was elevated fast according to irradiated thermal energy during I second, In proportion to continuous exposure time, temperature elevated slowly The surface temperature was 1370℃. After discontinue of thermal irradiation, the heat of irradiated surface was diffused in dentin and pulp and the greatest temperature was made, The greatest temperature was disappeared within 10 seconds The greatest temperature of the inner part of model brought about very severe change by different depth. Temperature in pulp was raised by the greater irradiated energy density and exposure time.

10주간의 행동요법이 비만 초등학생의 혈중지질 성분에 미치는 영향

김현준,김태운,박태곤,박찬호,예정복 釜山大學校 附設 體育科學硏究所 2003 體育科學硏究所 論文集 Vol.19 No.-

The purpose of this study was to verify the effect of behavioral modification therapy among elementary students by comparing and analysing serum lipid between the experimental group and the control group on obese children. For this study, 44 obese children(boys: above 25% of % fat, girls: above 30% of % fat) between 11 and 12 years old S elementary school in Busan city were engaged in and were divided into two groups, each group consisting twenty two children an experimental group for behavioral modification therapy and a control group without any kind of obesity management program......

2차원 해석을 이용한 지하복합구조물 설계의 문제점 : 지하철 정거장을 중심으로

김형곤,조현영,정진환 釜山大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.52 No.-

본 연구에서는, 3차원 지하구조물이 2차원 뼈대조구조해석에 의해서 설계될 때의 문제점 들, 즉 갑작스런 단면의 변화, 개구부, 길이방향으로의 지반상태의 변화들이 검토 되어진다. 구조물들 3차원 해석에서 실제구조물과 가능한한 가장 근사하게 FEM에 의해 이상화되어진다. 본 연구로부터, 다음과 같은 두가지 결론을 내릴수 있다. 첫째, 개구부가 존재하는 곳에서는 보다 정확한 휨 모멘트분포를 얻기 위해 3차원이나 판이론에 의한 세부적인 해석이 수행되어져야 한다. 둘째, 건조수축, 수화열 그리고 힘의 분배에 대한 길이방향 보강을 결정하기 위해서는 더 세심한 검토가 필요하다. In this study, the problems when 3-D underground structures were designed by using 2-D plane frame structure analyses, such as sudden changes of sections, openings, and the variations of the ground conditions in the longitudinal directions, were investigated. The structures were idealized by FEM as close as possible to the real structures in 3-D. From this study, the authors conclude following two results. First, 3-D or detailed analysis with plate theory where openings exist must be carried out to obtain more accurate bending moment distribution. Second, a more refined investigation is needed to determine the longitudinal reinforcement due to shrinkage, the heat of hydration and the distribution of forces.