高血壓性 腦實質內 血腫

李和東,韓允善,鄭煥永,李憲梓 中央醫學社 1971 中央醫學 Vol.20 No.2

A total of 32 cases of spontaneous intracerebral hematoma caused by hypertension and unknown origin is surgically treated and reviewed. Thirty two cases comprised 22 males and 10 females with a ratio of 2.2 too 1. The age ranged from 30 to 61 years with the highest incidence at 5th and 6th decades. The most important one as to prognosis is the level of consciousness, and the age per se does not influence significantly to the mortality or morbidity. Surgical exploration is better, attempted when the clinical features denote a space occupying lesion.

복직근 및 박근 근피판술을 이용한 골반 및 서혜부 연부조직 결손의 재건

이재화,정윤규,김주봉,유대현,황성관,이훈범,김석원 大韓成形外科學會 1997 Archives of Plastic Surgery Vol.24 No.6

Many operations for the reconstruction of the pelvic area have been studied until now. The local muscle flap is often used for the closure of these complex wound. But, these local muscle flaps may not be available for reconstruction due to the factors of infection, radiation, and surgical trauma. Since rectus abdominis muscle and gracilis muscle were introduced, their use has been steadily increased for the reconstruction of soft tissue defect of the pelvic area. Inferiorly based rectus abdominis muscle flap and the gracilis muscle flap have been adopted for well-vascularized soft tissue coverage of the defect of pelvis and groin area. These techniques were utilized in seven patients. Of these patients, rectus abdominis muscle flap was used on four patients and three patients were treated with gracilis muscle flap. Among these, chronic osteomyelitis of pelvic bone has been managed with inferiorly based rectus abdominis muscle flap in three patients. No complication has been found. The mean postoperative follow-up period was 26 months, with a range of 12 to 39 months. In conclusion, these muscles are functionally expandable , and provide adequate tissue volume with sufficient blood supply away from the zone of injury, and readily transposed into the pelvis and groin area through subcutaneous tunnel, and serve as an antibiotic delivery system that aids in the eradication of infection. These findings suggest a reconstructive option for the defect of pelvis and groin, and/or bone infection in this area.

김치용 간절임 배추의 저장에 관한 연구 : Ⅱ. 젖산, Calcium Chloride, 저장온도가 저장중 간절임 배추의 품질에 미치는 영향

김윤숙,김중만,백승화,문정옥,황호선,김인숙 圓光大學校 1987 論文集 Vol.21 No.2

배추를 다듬기 하는데 발생한 폐기량은 7.5∼14% (w/w)이었고 10±2℃에서 30일간 방치한 경우 약 17∼25% 발생하였다. 간절임 배추의 pH값은 저장온도가 낮을수록, 염도가 높을수록 높았으나 calcium chloride 첨가가 절임배추의 pH값의 변화에는 영향을 주지 않았다. 유리당의 함량변화는 최소 약 4% 수준에서 산의 함량과는 반비례적으로 변화하여 저장 90일에는 소금농도가 낮고 저장온도가 높은 경우 적게 감소되었다. 균수변화에서 세균과 효모는 전 기간을 통해 증가한 반면, 곰팡이는 감소하였다. 한편 산의 첨가와 CaCl? 첨가시 소금으로만 절인 경우보다 세균과 효모는 낮은 속도로 증가했다. 저장중 경도는 온도가 낮고 염도가 높으며 젖산을 첨가한 경우 다소 높게 유지됐고, CaCl? 첨가의 경우 잎과 줄기에서 월등히 높았다. 휘발산과 불휘발산의 함량변화에서 온도가 낮고 염도가 높은경우 불휘발산의 함량이 낮았는데 특히 젖산 첨가시 불휘발산의 증가를 억제하는 것으로 나타났다. flavor score 는 저온과 고염도 젖산첨가시 유리하였다. This study was to investigate the effects of storage temperature, lactic acid and calcium chloride addition about the pH values, sugar content, firmness, volatile and nonvolatile acidity, microbial counts and flavor of the salted chinese cabbages during storage (90 days), and trim loss of chinese cabbages during the trimming of raw and storaged (30 days) chinese cabbages. The waste rate was in the course of trimming of raw chinese, cabbages was 7.5-14(w/w). The proportion of trim loss was highly correlated to sunshine duration, temperature, humidity and handling for the storage. Free sugar was decreased fast and much in the case of high temperature and low level sodium chloride in comp rison of low temperature and high sodium chloride, but ?? and lactic acid did not affect its changes. Time to reach the lowest pH values were fast in the case of high temperature and low salt content. Lactic acid affected inital pH value (4.38-4.57) and constant pH value in each case was increased at low salt content, at high temperature, and then the pH values were slowly increased when volatile acidity was increased. Firmness was high in the case of addition of lactic acid and calcium chloride, low temperature, high sodium chloride concentration. Especially, calcium chloride addition remarkably showed high firmness. Flavor score was high in the case of low storage temperature, high yeast counts were slowly increased in spite of low temperature and high salt content, but mold counts were slightly increased during all period Lactic acid, low temperature and high sodium chloride were effective to inhibit the growth of microorganisms. Volatile and nonvolatile acidity was increased during all storage period ; however, lactic acid and low temperature storage inhibited their increase. To conclude, quality of salted chinese cabbages was effective at low temperature storage, lactic acid and calcium chloride addition, and high salt concentration.

演繹과 歸納에 關한 考察

李忠杰,金富允,金東華 釜山大學校 師範大學 1988 교사교육연구 Vol.17 No.-

In this paper, we point out that the knowledge of deduction method being suitable for persuading someone to approve a statement is unsuitable for necessity of deductive reasoning. For such knowledge, the recognition of difference between inductive reasoning and deductive reasoning is required. Such a knowledge is acquired some empirical components and some social components. David Bloor says, theoretical components of knowledge is one aspect of such social components. The atmosphere of classroom, attitude of teacher, attitude of other students are variables of such social components. Students in classroom study the knowledge of inductive method and deductive method with some social components, after this, students recognize the difference between inductive method and deductive method, after all, students recognize the necessity of deductive method for proving a statement.

腦의 原發性 肉腫 1例 報告

李和東,韓允善,鄭煥永,李憲梓 中央醫學社 1970 中央醫學 Vol.19 No.6

The primary sarcomas of the brain have been considered rare and occur mostly in infants and children. We report one case of primary sarcoma which was diagnosed as a huze intracerebral honiatoma in the left parietote nporal area with a case history and angiographic findings. Flow ever, the operative findings and histopathological report confirmed a primary sarcoma of the brain belonging to unknown type in. Abbott and Kernohan's classification. The tumor was extended into the leptomeninges and the Virchow Robin spaces, invading the cerebral parenchyma with intracetebral hematoma in the left parieto-temporal area. Dura was not invaded by the sarcoma. This is a case of primary sarcoma arising from the leptomeninges in the brain.

유리피판을 이용한 하인두-식도 재건 치험례

봉정표,정윤규,이훈범,김주봉,이재화,나동균,김석원 大韓成形外科學會 1997 Archives of Plastic Surgery Vol.24 No.6

Hypopharyngo-esophageal cancer is usually found at late stage. Its main treatment is surgical intervention and it often requires radical resection. Reconstruction of the hypopharyngo-esophageal defect after the resection of carcinomas of the hypopharynx and the cervical esophagus has traditionally been carried out with deltopectoral or musculocutaneous flap. Another approach is to reconstruct the defect with the colon or stomach. Recent advances in microvascular surgical techniques have resulted in one stage reconstruction with free flap. Both jejunal free flap and radial forearm free flap is a good alternative for the reconstruction of hypopharyngo-esophageal defect. Six cases of the radial forearm flap and nine cases of the jejunal flap were used to reconstructed the hypopharyngo-esophageal defect in 15 patients. In jejunal free flap, upper margin was reconstructed with end to side anastomosis and lower margin with end to end anastomosis. In radial forearm free flap, we used trapezoid shaped flap and tubed by complete or partial tubing according to the condition of the defects. Stricture and fistula are troublesome complications. The complications were peritonitis(n=1) and fistula(n=1). We concluded that both forearm and jejunal free flap is a useful alternative in reconstruction of hypopharynx and cervical esophagus.

Overfitting 제거를 위한 규칙 확장

한진철,윤충화 明知大學校 産業技術硏究所 2005 産業技術硏究所論文集 Vol.24 No.-

RPA (Recursive Pattern Averaging) algorithm, which is an instance-based learning method, generates representative patterns from training set, and uses them to classify a test pattern by computing Euclidean distances. RPA is proven to show satisfactory performance, but it has a major disadvantage that it cannot explain the user how the classification result is obtained. This explanation capability is crucial to some domains where expert systems are employed. In order to overcome this disadvantage, we propose a rule-extracting algorithm that produces IF-THEN rules from RPA method, and a pruning algorithm by expanding conditions in IF part of rules in order to improve generalization capability.

사슴의 내부기생충 감염에 관한 조사연구

윤화중,정길생,Yoon Hwa-Joong,Chung Kil-Saeng 대한수의사회 1983 대한수의사회지 Vol.19 No.7

The authors made a survey on the species and distribution of internal parasites in domesticated deer. Total 75 specimen which collected from Seoul City, Gyeonggi Do, Kangwon Do and Chung-Nam Province were carried out for the actual condition of parasitic

불필요한 조건 제거에 의한 규칙 Pruning

김상귀,윤충화 明知大學校 産業技術硏究所 2005 産業技術硏究所論文集 Vol.24 No.-

Memory-based learning algorithms showed satisfactory performance in classifying test patterns, but they simply utilize Euclidean distances between training patterns and a test pattern. They simply present the classification result to a user, but cannot explain the reasoning process how the result is obtained. In order to overcome this disadvantage, we propose a rule-extracting algorithm that produces IF-THEN rules from RPA (Recursive Partition Averaging), and a rule-pruning algorithm that removes useless conditions from IF part of the rules in order to enhance generalization capability.

지능형 검색 엔진을 위한 문서 분석 기법에 대한 연구

임윤택,윤충화 明知大學校 産業技術硏究所 2000 産業技術硏究所論文集 Vol.19 No.-

As we use machine learning algorithms for text categorization in information retrieval, the major difficulty arises when the number of features in a text pattern gets too large for ordinary machine learning algorithms to operate efficiently. In order to solve this problem, feature selection technique can be employed to select important features that affects the correct classification of texts, and in turn reduces the number of features in a text pattern. In this paper, we have compared Information Gain, Gini Index, Relief-F, and Document Frequency, which are major feature selection methods. Our experiment showed that by applying feature selection methods to reduce the number of features in a text pattern, we can actually achieve better classification performance than by simply constructing a pattern with all the unique words in a text.