컴퓨터 프로그램을 이용한 문제목록별 비뇨기과적 진단

윤석중,서정원,이재원,김용태,이현무,채수일,이상철,김원재 충북대학교 의과대학 충북대학교 의학연구소 1996 忠北醫大學術誌 Vol.6 No.1

병원을 찾는 대부분의 환자들은 어떤 증상이나 징후 등을 주소로 호소하면서 의사를 찾게되나 이들을 대하는 의사들의 의학지식의 대부분은 최종 진단명을 중심으로 한 질병에 대한 이해나 접근이 대부분이다. 이러한 실정에서 환자의 문제목록에 따른 감별진단을 위한 임상자료가 있다면 환자 진료에 있어 큰 도움이 될 것이다. 이에 저자들은 입력되는 진료 기록에 문제목록 까지 포함시킴으로써 마치 Problem Oriented Medical Diagnosis(POMD)와 유사한 방식의 운용이 가능한 환자관리프로그램인 비뇨기과 환자 관리체계(Chart Management System for Urology : CMSU)를 이미 개발하여 1991년 7월 20일 충북대학교 병원 개원일로 부터 현재까지 사용하고 있으며 1992년 1월 1일 부터 1994년 12월 31일 까지 만 3년간 충북대학교 병원 비뇨기과에 입원한 환자들의 입력자료를 토대로 입원 당시의 문제목록들이 퇴원 당시 결국 어떠한 최종 진단명으로 밝혀졌는가 하는 관계를 통계 처리하여 자료를 구축하였다. 그 결과 성인군에서는 측복통이 12.9% 및 배뇨증상과 관련된 문제목록들이 41.0%를 차지하였고 이와는 달리 소아군에서는 고환 및 음낭질환과 요도구 이상이 전체의 69.0%를 차지하여 성인군과 대조되는 양상을 보였으며, 성인군에서 12.9%로 문제목록 1위인 측복통이 소아에서는 3.6%로 7위의 소견을 보여 성인군과 상이한 결과를 보였다. 향후 이 자료를 토대로 앞으로 새로 대하게 될 환자들에 대해서는 우선 문제목록 위주로 체계적인 감별 진단을 시행할 수 있게 함으로써 비뇨기과 환자 진료의 효율을 향상시켜 보고자 하였다. Most of the patients who visit to hospital that presented with chief complaint including some symptom and sign to the physicians, initially. But the most of acknowledgement of the physicians is familiar to the approach and understanding about a certain diseases based on final diagnosis other than problem oriented approach. On this of situation, if there are clinical data for differential diagnosis based on problem lists of the patients, it is helpful for the physicians to manage the patients. Therefore, we collected data that the problem lists on admission was matched a certain final diagnosis on discharge using Chart Management System for Urology(CMSU) program, which is include problem lists to the patients information inputs for 3 years from opening day of chungbuk national university hospital. The results demostrated that in adult group flank pain and voiding related problems occupied 12.9% and 41.0% respectively ; in pediatric group scrotal problems with testis and abnormal urethral opening occupied 61.8%. Interestingly, Flank pain was ranked on leading problem in adult group(12.9%), but ranked on 7th problem in pediatric group(3.6%). These results suggested different pattern in problem lists between two groups. In the future, we should be facillitate efficient patients management through systemic differential diagnosis according to problem lists based on these data.

電力品質 補償裝置인 DVR의 瞬間電壓降下 檢出에 關한 硏究

한운동 忠州大學校 2007 한국교통대학교 논문집 Vol.42 No.-

The recent growth in the use of impactive and nonlinear loads, electronic, and medical devices sensitive to power quality has caused many power quality problems and power supply-and-demand problem. Recently, in power system, not only the reliability of the power supply but also the DVR(Dynamic Voltage Restorer), UPS, and APF are being studied more and more. Hence, in this paper, Voltage sag detection algorithm for voltage sag corrector is proposed. Also, simple circuit for the experimental voltage sag is introduced.

전기자동차용 EDLC축전시스템의 제어 알고리즘 연구

한운동 忠州大學校 2012 한국교통대학교 논문집 Vol.47 No.-

Recently, in energy storage system, the EDLC is paid attention as a new environmentally friendly energy storage element. This capacitor has higher energy density than the electrolytic capacitor. Also, this capacitor has a lot of advantage such as no maintenance, longer life cycle and faster charge-discharge time than the battery system. But the EDLC must have a each charge-discharge controller to control high effective, a direct-parallel switching circuit to effectively use energy, and several compensation techniques to control a optimal operating.

동적전압보상시스템에서 LC필터 전압궤환의 제어특성 비교

한운동 한국교통대학교 2015 한국교통대학교 논문집 Vol.50 No.-

Dynamic voltage restorers(DVRs) are mainly used to protect sensitive loads from the electrical network voltage disturbances such as sags or swells and could be used to reduce harmonic distortion of ac voltages. The typical DVR topology essentially contains a voltage source inverter (VSI) with LC Filter, an injection transformer connected between the ac voltage line and the sensitive load, and a DC energy storage device. For injecting series voltage, the PWM inverter is used and the low pass filter consist of inductor(L) and capacitor(C) eliminates the harmonics of the PWM voltage of the inverter. However there are voltage pulsation responses by the characteristic of the LC lowpass filter that eliminate the harmonics of the PWM output waveform of the inverter. Therefore, this paper compared control and frequency response characteristic of LC filter voltage feedback with the DVRs. The voltage control by LC filter should be connected in the line side since this feedback method allows a relatively faster dynamic response, enabling the elimination of voltage notches or spikes in the beginning and in the end of sags and strong load voltage THD reduction.

3상 정류기의 고조파 경감을 위한 스위칭 회로에 관한 연구

한운동 韓國交通大學校 2013 한국교통대학교 논문집 Vol.48 No.-

In this paper, a new control circuit for shaping the line current and reducing the total harmonics distortion in three phase diode rectifier is presented. In the past years, three phase diode rectifier have been used widely. Because a three-phase diode rectifier don't need controller, it's a cheap and reliable method to get DC voltage. However an harmonics problems which make an acoustic noise, overheat, a disorder of computer system and sometimes mess a communication system are caused. In an uncontrolled diode rectifier, current is drawn from the ac mains only during the period in the ac cycle when the instantaneous voltage is greater than the voltage across the dc-link capacitor. As a result, current is of pulsed nature with the amplitude dependent on the size of the capacitor. a pulsed natured current is so discontinuous that it makes a harmonics problems. In this study, the three bidirectional switches rated at very small power are installed in a conventional three phase diode rectifier. Using those switches, an idle current charges to capacitors continuously. Simulation's and Experimental's results demonstrate a reduction of harmonics, a improvement of power factor and THD.

營農生活館 敎育에 關한 硏究

崔元凱,李宗玉 진주산업대학교 1980 論文集 Vol.18 No.-

The purposes of this study were to make clear the effects of the agricultural life education and to get a better education for the agricultral junior technial college student. Data for this study were collected from questsionnarie to the freshmen who had completed the agricultural life education for a week in 1979 and 1980. The following conclusions were drawn from the research findings: 1. There wre many students who would wished to be transferred to senior college or university as a motive of the entrance of junior technical college. A number of students was decreased to be transferred to senior college, and increased to be accomplished the purposes of agricultural junior technical college after the completion of the agricultural life education. 2. Most of students were much interested by the succesful stories of practical and real farm management and home management, the day's routine of life experiences, and several group activites such as group discussion, group recreation, candle fire ceremony etc. 3. Throughout the agricultural life education many students were much interested in farm life and farm settlement. 4. The effective results of agricultural life educbtion would be much increased by the educational supplement of the speciality and the professor's cooperation of each department. 5. The fruitful education would be expected in perfect harmony among guidance professors, instructors and students, and by good accommodations.

CCR 인버터 시스템을 利用한 改善된 交流電力 制御技法

한운동 忠州大學校 2008 한국교통대학교 논문집 Vol.43 No.-

According to level of industry develops day after day, electric load system of industry requires high level control, with effectiveness and high efficiency. Among supply and control unit of suitable power supply in these load characteristic, inverter systems of constant current regulator is widely used control of lighting and electric heating system. Therefore, in this paper proposed a inverter systems of constant current regulator that using improved measure technique. Proposed system is based on the moving averaged method of instantaneous RMS for measuring current which shows improved response characteristics and precision accuracy. Result of computer simulation and an experiment proved effectiveness of proposed system.

토양의 粒徑分析에 관한 硏究 : 第1報 가장 效果的인 土粒의 分散處理 1. The most effective dispersing treatments for partcle size distribution analysis

崔元凱 진주산업대학교 1972 論文集 Vol.9 No.-

This experiment was practised to find out the most effective dispersing treatments of the preparation of a soil sample for the particle size distribution analysis. Ten dispersing treatments were compared in this experiment. According to the hydrometer readings results obtained were as follows. 1. Sodium hexametaphosphate dispersing treatment was the best method for this soil, especially H_2O treated on. 2. H_2O treated, Hcl washed, NaOH dispersed treatment was shown to be only slightly inferior to the sodium hexametaphosphate treatment. 3. Inferior treatment is H_2O dispersed treatment, untreated H_2O_2 and unused dispersing.

主要作物의 微量要素에 關한 硏究 : 第2報 硼素 및 石灰가 배추 生育에 미치는 影響 2. Effects of Boron and Lime on the Chinese Cabbage

崔元凱 진주산업대학교 1970 論文集 Vol.4 No.-

硼素가 缺乏한 狀態의 배추 圃場에서 硼素施用 適正量을 캐고 硼素와 石灰를 連關지워 施用한 結果를 要約하면 다음과 같다. 1. 微酸性을 나타내는 硼素缺乏地帶의 배추 圃場에서 石灰를 置換酸度 中和量의 倍量을 施用하고 또硼素를 施用하여 石灰와 硼素 共施에 因한 收量差를 보았으나, 認定못했다. 2. 石灰無施區,石灰普肥區, 石灰培肥區 共히 硼素施用에 따른 收用效果는 높아, 硼素 10a當 1.5㎏施用의 것이 가장 많은 收量을 내고 있다. This experiment was designed to make clear the effects of the application borax with lime on Chinese cabbage growing in B deficient and pH 6.2 soil. The results obtained were as follows; 1. The most effective amounts of borax with lime applied to the soil were 1,500g per 10a. 2. Borax and non, common, double amounts of lime were applied in the field, but the yield was the same.

紫花地下의 鎭痛 消炎에 關한 實驗的 硏究

高雲彩,辛民敎 대한본초학회 1987 大韓本草學會誌 Vol.2 No.1

This experimental study was undertaken to observe the analgesic and antiphlogisitic effect of Herba Violae The results was obtained as follow; 1. The analgesic effect on each experimental group appeared in proportion to the amount of administration, that is to say, the more amount, the more effective. 2. The antiphlogistic action on each experimental group showed the recognizable effect in proportion to time and amount of administration. In consideration of the above-obtained results, it is thought that the antipyretic, antidotal and antiedematous effect of Herba Violae was good comparatively from the Oriental Medicinal point of viwe, therfore, it was worth applying to the treatment of surgical diseases in Oriental clinics.