辨證體系와 辨證方法의 效率的 講義를 위한 敎育方法 探索

池圭鎔 대한동의병리학회 1998 동의생리병리학회지 Vol.12 No.2

병리학과 진단학에서 모두 변증이론을 배우고 있으나 학생들이 변증학을 이수한 후에도 적용에 곤란을 겪고 있어서 보다 효율적인 교육방법이 필요하다. 1) 중국임상과 한국임상의 차이를 역사적 관점에서 파악하여 辨證이란 어휘의 함의를 비교함으로써 교육과정과 실제임상에서의 괴리를 밝히고, 2) 학교변증교육의 현상황과 개선점을 밝히고 그 한 예시로써 변증과정의 개략을 기술, 3) 기존 교과서에 다룬 일반적인 외감병 및 잡병 변증과 체질변증을 분류하여 비교기술함으로써 그 차이를 드러냈다. 변증방법에 대한 중국의학과 한국의학의 임상실제에서의 차이, 변증체계들의 용도와 적용단계를 분명히 숙지, 변증단계 혹은 증후항목별로 정의와 표적증상들을 분명하게 규정하되 변병체계와 혼용, 진단학과 연계하여 변증과 진단이 일치하도록 교육, 유용한 서의학적 진단자료를 첨가하여 임상과 연계, 이상의 요소를 모두 고려한 종합적인 병리학 교재가 필요하다. Arguing Point: In spite of learning the differential diagnostic theory in both pathology and diagnostics, students complain of difficulties to decide serial symptom complex in bed side practice. So there needs more effective teaching way to make understand the differential diagnostic theory. Aiming Point: First, Chinese clinic and Korean one is compared from the historical point of view, the difference of them make many problems of teaching and learning the differential diagnostic theory, and make more apparent the impling meaning of the differential diagnosis. Second, existing status and problems of school education about differential diagnosis are explained, and a case of headache is exemplified. Third, external and internal injury between constitutional disease are classified in comparison. Proposal of Teaching Way: Explanation about the difference of clinical method in China and Korea. Knowing well about using area and applying stage of the differential diagnostic theory. Determining the definition and main symptom of each serial diagnostic symptom, and co-using disease differentiation. In line education of pathology and diagnostics in order to avoid contradiction. Using both clinical data of traditional and western medicine. Necessity of synthetic textbook of pathology containing such contents.

기계학습기법을 통한 불임환자 데이터의 종속성 분석

정용규,강희규,박원일 凡石學術奬學財團 2002 凡石學術論文集 Vol.6 No.1

A large amount of data is obtained from patients seeking to achieve pregnancy through medical treatment. The data evolved from infertility treatment must be considered in many aspects about their characteristics and it is often difficult to find the cause of the problem due to many unexplained factors involved with infertility. The complexity of data makes it difficult for specialists to decide the correct therapy to approach. This paper presents our empirical research in Bayesian network. We constructed a Bayesian network and intestigated the utiity of the Bayesian network in identifying the relations between the factors affecting medically assisted conception. The Bayesian network classifier derived from the field data corresponds to confirms the domain knowledge that the age of female partner and the total number of embryo transferred play the key role in pregnancy. Applied to test cases for predicting target value of pregnancy, the Bayesian network shows the highest accuracy rate compared to heuristic and Naive-Bayes network classifiers.

Al―합금재의 균열닫힘현상에 관한 파괴역학적 연구

최용식,한지원,김규성 成均館大學校 科學技術硏究所 1991 論文集 Vol.42 No.1

In this study, a crack closure behavior of Al-Alloy 5052-H38 was investigated. The fatigue test was performed with 25-ton capacity Instron Dynamic Test System, Model 1332, by the four-point bending test under the constant amplitude load. Stress ratio R was changed from -1.0 to 0.5 and load cycle was 20 Hz at the room temperature. To measure the fatigue crack opening point, the graph of load vs. subrtacted displacement by computer program was obtained from the X-Y plotter. In order to gain the displacement data, a strain gage was attached at the back surface against the notched side. Using the concepts of crack closure and influence of R on crack growth rate, a model for crack growth rate is developed for Al-Alloy 5052-H38. da / dN = C(ΔK_eff)^m = C(1.1 / 1.53 - R ΔK)^m : -1 ≤ R ≤ 0.5 da / dN = C(ΔK_eff)^m = C(ΔK)^m : R ≥ 0.5

제주도에서의 빗물 이온 농도 분석

심상규,강창희,김용표 濟州大學校 基礎科學硏究所 1994 基礎科學硏究 Vol.7 No.1

Precipitation samples were collected at Kosan, Cheju Island over a period of 6 months. An automatic rain sampler was manufactured domestically and installed at Kosan station. All samples were collected on a weekly basis. Samples were analyzed for ??, ??, ??, ??, ??, ??, ??, ??, and pH and specific conductivity. The quality analysis of rain sample data were performed based on ion balance and specific conductivity. The pH of rain samples ranged between 4.6 to 6.6. Bicarbonate ion concentration were included in ion balance and specific conductivity calculations. The sum of cation concentrations were slightly greater than the sum of anion concentrations. Calculated specific conductivity was greater than measured specific conductivity. The most probable explanations for this discrepancy is “an anion too low or anion missing." Two criteria were used to identify outliners. They are 1) the difference between the sum of anion concentrations and cation concentration is more than 50μeq/l and 2) the difference between calculated and measured specific conductivity is more than 25%. Chemical analysis from several samples did not satisfy these quality control criteria. Volume weighted average concentrations were calculated. Dominant free acids in rain samples were ??, ??, ??, ?? ions in order of abundance. Non-seasalt sulfate comprises 76% of total sulfate.

관절원판 손상이 가토 하악두 골결손부 재형성에 미치는 영향에 관한 연구

이용규,장현중 慶北大學校 齒科大學 1993 慶北齒大論文集 Vol.10 No.2

가토 악관절 관절원판의 부분적 제거가 하악두결손부의 재성형에 미치는 영향을 관찰하고자, 가토 12두의 좌우측 약관절에서 1.5 x 2.0 x 3.0 mm 의 골결손부를 하악두 측면에 형성하였으며, 우측 악관절에서는 관절원판의 측면을 부분적으로 절제해 내어 실험군으로 삼아 대조군인 좌측과 비교관찰하여 1, 2, 4, 8주후에 조직학적으로 관찰한 바 다음과 같은 결과를 얻었다. 1. 대조 및 실험 1, 2, 4주군에서 골결손부재형성 과정에 명확한 차이가 관찰되지 않았다. 2. 대조 및 실험 8주군에서 과증식 없이 재성형된 관절면이 관찰됨으로써 관절면의 재성형에 있어서 두 군에서 명확한 차이를 관찰하지 못하였지만, 실험 8주군에서는 관절면 하방에 아직도 두꺼운 섬유성결체조직층과 두꺼운 연골세포층이 관찰되었다. The purpose of this study was histologic evaluation about the effect of meniscus in the remodelling of the artificial condylar bony defect in the rabbits. For this study, 12 Rabbits were used. On the left temporomandibular joint of experimental animal, lateral side partial menisectomy and 1.5 x 2.0 x 3.0 mm bony defect on condylar head was made. and then, on the opposite temporomandibular joint, only same bony defect was made. The animals were sacrified respectively 3 rabbits on the 1, 2, 4, and 8 weeks. Serial sections of all specimens were prepard and examined histopathologically by H & E stains. The results were as follows: 1. On the 1, 2, and 4 weeks control and experimental groups, the course of bony defect remodelling was not definitively different. 2. On the 8 week control group, bony defect was completely remodelled and on the 8 week experimental group, well contoured articular surface was shown, but thick fibrous connective tissue and chondroblastic layer was shown beneath articular surface.

마이크로 방전에서의 공동음극과 평면음극 방전특성

김종규,김용평 경희대학교 레이저공학연구소 2001 레이저공학 Vol.12 No.-

It is measured and analysed the discharge characteristics of microdischarge at cylinderical micro discharge cell which was designed in range of 400~700 um diameter. Using mica of 500 um thickness as a dielectric and Ni foil of 100um thickness as a electrod, the discharge characteristics of both plane cathode type and hollow cathode type were analysed and compared in the condition of 100-600 torr He gas.

입력측 고조파 저감형 직류 전동기 속도 제어

채규훈,한우용 군산대학교 1990 群山水産專門大學 硏究報告 Vol.24 No.1

This paper describes microprocessor-based speed control of a DC motor with the reduced harmonics in input AC line currents. The harmonics involved in input AC line currents of converter apparatus have generated such serious problems as burning of power condenser, misaction of protective relay and trouble of automatic voltage controller in transmission and distribution of electric power system. Accordingly, in this study, to reduce harmonics in input line currents, the input line consists of 3 phase 24 pulse converter added tap conversion auxiliary circuits. The voltage necessary for DC motor drive is adjusted by a chopper. A voltage that relates to the motor speed is measured through a tachogenerator. The analog voltage measured through a tachogenerator is converted into the digital signal by the A/D converter and the converted digital signal goes into the microprocessor. The microprocessor compares the actual speed with the desired speed and the difference is used to adjust the on-off time of the chopper. Therefore, this system can reduce harmonics in input line currents and drive the DC motor to the constant speed in spite of a variable load.

시범학교 불소용액양치사업 3년간의 효과평가 연구

김종배,이용규,신승철 啓明大學校 醫科大學 1998 계명의대학술지 Vol.17 No.4

저자등은 학교구강보건사업의 대표적인 사업인 불소용액양치 사업의 효과를 보기 위하여 목천초등학교 고학년 활동 164명을 대상으로 3년간 0.05% 불화나트륨 용액과 10% Xylitol을 주성분으로 제조된 치카치카 용약을 가지고 불소용액양치 사업을 실시하고 학동들의 구강검사르 통하여 우식경험 영구치에 대한 조사를 실시한 구 대조군 아동들의 구강 검사와 비교하여 우예방효과를 산출한 결과 다음과 같은 결론을 얻었다. 1. 사업대상 아동들의 구강검사결과 영구치 우식경함자율은 9세 아동에서 61.2%, 10세 아동에서 62.3%, 11세 아동에서 72.6%로 나타나 대조군 아동에 비해서 우식경함자율에 있어서는 별차이가 없었다. 2. 우식경험영구치율은 9세 아동에서 13.9%, 10세 아동에서는 11.4%, 11세 아동에서는 8.9%로 대조군 아동에서보다 평균 38.3%로 예방 효과를 나타냈다. 3. 우식경험 영구치지수는 9세 아동에서 1.98±0.82, 10세 아동에서 1.79±0.71, 11세 아동에서는 1.92±1.01로 나타나서 대조군 아동과 비교할 때 9세에서는 51.2%로 평균 36.9%의 우식예방효과를 나타내었다. 4. 0.05% 불화나트륨과 10% Xylitol을 함유한 용액으로 실시한 학교 불소용액 양치 사업은 계속 시행할수록 우식예방이 점차 높아지므로 지속적으로 시행되어야 할 것으로 사료되었다. The authors have studied for caries prevention effects of fluoride mouthrinsing program for 3 years. 164 school children were orally examined after mouthrinsing with 0.05% NaF and 10% xylitol solution everyday for 3 years. And compared the results with these of other school children. The obtained results are followings. 1. DMF rate were examined as 61.2% in 9 years old. 62.3% in 10 years old and 72.6% in 11 years old, and no difference with the control group. 2. DMFT rate was 13.9% in 9 years old, 11.4% in 10 years old and 8.9% in 11 years old, so it is estimated that average 38.3% reduction of caries incidence for DMFT rate, compared with the control group. 3. DMFT index was examined as 1.98±0.82 in 9 years old, 1.79±0.71 in 10 years old and 1.92±1.01 in 11 years old. It is estimated that 23.0% of caries reduction effect in 9 years old, 34.7% in 10 years old and 51.2% in 11 years old and average 36.9% reduction effects were calculated. 4. It is recommended that fluoride mouthrinsing program with 0.05% NaF and 10% xylitol solution was effective to prevent the caries incidence for school children.

교정치료에 따른 사춘기 성장 아동의 상기도 폭경과 안면 성장 변화와의 관계 연구

김윤지,복규석,이규홍,황용인,박양호 대한치과교정학회 2009 대한치과교정학회지 Vol.39 No.3

본 연구의 목적은 아동에서 사춘기 성장 동안 기도의 변화가 안면 성장에 미치는 영향을 평가하는 것이었다. 9 - 11세(평균 10.7세)의 교정환자 36명을 대상으로 하여 초진 시(T1)와 치료 종료 시(T2)에 각각 측모두부방사선사진과 수완부 방사선 사진을 촬영하였다. 측모두부방사선사진상의 기도 폭경을 기준으로 하여 대상을 세 그룹으로 나누었다; 폭경이 좁은 그룹(AW-Narrow: 5.2 - 8.6 mm), 중간 그룹(AW-Medium: 8.9 - 11.5 mm), 넓은 그룹(AW-Wide: 11.7 - 16.0 mm). T1과 T2시기에 각 그룹 간의 안면 계측치의 차이를 비교하였으며 T1 - T2 사이의 계측치의 변화량을 각 그룹별로 비교하여 성장을 평가하였다. 각 그룹의 기도 폭경 증가량은 AW-Narrow, AW-Medium, AW-Wide group에서 각각 4.55 mm, 3.84 mm, 1.94 mm였으며 통계적으로 유의한 차이를 보였다. T1시기의 각 그룹 간의 비교에서 AW-Narrow group에서 다른 그룹에 비해 PFH가 유의하게 작은 값을 나타냈다. T1 - T2 사이의 성장 평가에서는 AW-Narrow group에서 다른 그룹에 비해 PFH/AFH, facial axis, ANS (T1 - T2), and Gn (T1 - T2)의 변화가 유의하게 큰 값을 보였다. 이 시기의 안면 성장 기간 동안 기도 폭경이 좁은 그룹에서 기도 폭경 및 안면 성장의 보상성 변화가 일어난 것으로 생각된다. 바람직하지 않은 안면 성장을 예방하기 위한 외과적 기도 처치를 고려할 때 자발적인 개선 가능성을 고려하여 좀 더 신중한 평가가 필요할 것으로 생각된다. Objective: The purpose of this study was to evaluate how airway changes influence facial growth during puberty in Korean children. Methods: Thirty-six patients aged 9 to 11 (mean age: 10.7 years) were selected. Cephalograms and hand-wrist x-rays were taken at pre-treatment (T1) and post-treatment (T2). The sample was divided into narrow (5.2 . 8.6 mm, AW-Narrow), medium (8.9 . 11.5 mm, AW-Medium), and wide (11.7 . 16.0 mm, AW-Wide) groups according to the airway width at T1. Cephalometric measurements at T1, T2 and growth from T1 to T2 were compared between groups. Results: The degree of increase in airway size in each group was 4.55 mm, 3.84 mm and 1.94 mm in the AW-Narrow, AW-Medium, and AW-Wide groups, respectively. Moreover, the differences were statistically significant. The significant smallest posterior facial height was found in the AW-Narrow group at T1. For the growth values from T1 to T2, the AW-Narrow group showed significantly larger values of PFH/AFH, facial axis, ANS (T1 - T2), and Gn (T1 - T2) than the AW-Medium group. Conclusions: The compensational changes in the airway width and facial growth were found in the narrow group. Surgical approach of the airway to prevent unfavorable facial growth in these years of age should be carried out, but with careful deliberation because these problems may be improved naturally.

CT-2 시스템의 기지국 구성과 운용형태에 관한 분석

신현식,김용규 여수대학교 1998 論文集 Vol.12 No.2

In this paper, structural methods and types of base-stations in the CT-2 system are discussed, chracteristics of radio propergation and quality of callings through the experiment in the vicinity at Jin-ju city in which have been started recently, are analyzed, and the development trends of the CT-2 serviece are disccused.