신경회로망에서 뉴런간의 연결도를 이용한 4백 배치 문제 해결 알고리즘

현해진,김덕주,강부식,이기태,임재윤 濟州大學校 工科大學 産業技術硏究所 1993 産業技術硏究報告 Vol.4 No.-

In this paper we have proposed a method for solving a four-coloring problem using adjusted information transmission between adjacent neurons in neural networks. These algorithms are based on McCclloch-Pitts binary neuron model neural networks. If a map shares n regions, a 4×n neural array is used to color a map of n regions where each neuron as a processing element performs it. By programming these algorithm by a C-language in IBM PC 486 DX and adapting it to various examples, we have showed the ability of our system. If one neuron is selected among four neurons, the strength of order three neurons is wakened. So, by transmitting the information of selected neuron, adjacent neurons cannot share the same color.

Fermentation Conditions for the Production of Cell Mass in Streptococcus faecalis and Endospores in Bacillus mesentericus

현형환,김부연,류한봉 한국외국어대학교 외국학종합연구센터 부설 기초과학연구소 1996 기초과학연구 Vol.4 No.-

Streptococcus faecalis는 glucose, lactose등을 탄소원으로 잘 이용하였으며 glucose를 탄소원으로, yeast extract와 casitone을 질소원으로 구성된 배지를 사용하여 pH 7.0에서 control되는 fermentor 배양에서 optical density(660nm) 7.3(viable cell concentration 6.5×10(9) cells/㎖)이상의 높은 cell concentration을 얻을 수 있었다. Bacillus mesentericus의 sporulation을 최대화 하기 위한 발효 조건을 조사한 결과 glucose를 위한 최적 CaCl₂농도는 0.lmM이었다. Streptococcus faecalis rapidly fermented glucose and lactose as a C-source, and the maximum cell concentration was obtained when grown in a jar fermentor that contained YCG medium consisting of glucose as a C-source and casitone and yeast extracts as a N-source, and that was controlled at pH 7.0. From experiments to maximize the sporulation efficiency in Bacillus mesentericus, glucose caused the decrease in sporulation efficiency, and calcium chloride was stimulatory for sporulation, of which optimum concentration was 0.lmM.

전류측정에 의한 AC서보모터의 언밸런스 고장검출

송명현,조병호,김부열 순천대학교 2000 순천대학교 자연과학논문집 Vol.19 No.1

Using current measurement, the analytic method for the unbalance fault detection of 3Φ induction servomotor was proposed. The fault detection of the load unbalance has been studied by means of the measure of vibration. In the conventional method, the additional vibration sensors are set up to measure the vibration properly, but the method introduced in this paper, a current sensor for motor control is used for measuring the load current, so there is no need for additional sensors. After measuring the current caused by unbalance load, the FFT spectrum of the measared current were analyzed and compared with the spectrum pattern of the balanced load. Varying the motor speed by 500, 1000, 1500 and 2000 rpm, some characteristic frequency for detecting the unbalance fault were found. These experimental results show that the proposed current measuring method is more simple, easy, and effective than the conventional vibration measuring method.

후외상성 진주종 2례

남부현,김병국,고필준,심장한,박찬일 충남대학교 의과대학 지역사회의학연구소 1996 충남의대잡지 Vol.23 No.1

Post-traumatic cholesteatoma can be originated in the middle ear or mastoid cavity after head trauma such as temporal bone fracture, penetrating injury of the temporal bone or blast injury of the tympanic membrane. It usually takes a long time to develope cholesteatoma after injury, and physicians may overlook its association with previous, trauma. Post-traumatic cholesteatoma can be suspected in patients with head trauma history and atypical cholesteatoma findings. We experienced two cases of cholesteatoma which found behind the intact tympanic membrane in 7 and 13 years old boys with history of head trauma, and we are reporting this with a discussion and literatural review.

Foot Index에 의한 발의 형태 분류 : 20대 여자 대학생을 중심으로

심부자,유현 동아대학교 생활과학연구소 2001 생활과학연구 논문집 Vol.9 No.-

The purpose of this study was to analyze the characteristics of women's foot and foot shape by foot index. The sample size for this study were 83 college Women of the age of 20's and Data were measured with the direct measurement method and indirect measurement method. The results were as follows : 1.Foot shape were grouped with narrow foot shape group (14.4%), intermediate foot shape group (67.5%), and wide foot shape group (18.1%). 2.After overviewing the characteristics of foot shape among individual foot shape group, significant results were obtained at several items ; Heel - instep girth, instep girth, medial malleolus height, lateral malleolus height, instep height, foot width, foot length, foot length of the first toe , foot length of the fifth toe. 3.The size difference between wearing shoes and bare foot of all participant were variable. Participants of 34.9% showed 5mm of size difference, participants of 57.8% showed 5-15mm of size difference, participants of 7.2% showed more than 15mm of size difference. 4.Participants were examined foot skin damages caused by wearing shoes. Participants of 49% had no foot skin damages, and participants of 51% had one or more foot skin damages.

교통사고로 발생한 대량 환자의 중증도 분류와 이송의 분석

오세현,정용택,김병철,이부수 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Background: Triage and transportations are important and life-saving medical task performed at the site of mutiple-casualty incidents(MCIs). We pursued three road traffic accidents victims to find out any problem in triaging and transporting them, and to provide an information for equipping an local disaster planning. Methods: The medical records of 70 consecutive patients who were transported to five emergency facilities in Kangnung, on three MCIs from 1998 to 2000, were analysed, retrospectively. The intervals and types of transport vehicles were analysed. We compared the prehospital time between severity-based groups, which were graded into 3 groups according to the Triage score(0,1~8,9). Results: Among the 70 patients, 33 patients(47.1%), 21 patients(30%), and 16 patients(22.9%) were transported to Level I, Level II, and Level III trauma centers, respectively. The time elapsed from scenes to the Level I trauma center was significantly shorter(p=0.003) than to others, but no differences in the mean Triage score between trauma centers were seen(p>0.05). The 119 rescue services transported 58.6%(41 patients) of victims to emergency facilities, and 58.5%(24 patients) of them was concentrated to Level I. There were no significant differences in the prehospital time between three Triage score groups(p>0.05). Conclusion: There was no medical control such as triage and transportation in the cases of three MCIs. In the construction of emergency medical service system(EMSS) preparing MCIs or disasters, we suggest the integration and unification of 119 rescue services and emergency medical information centers for effective medical control. We propose to making a new and simple triage guideline. The prehospital personnel should be educated and disaster drills should be performed under the guideline.

<黃帝內經>에 流入된 五行學說에 關한 硏究

金富煥,朴炫局 동국대학교 한의학연구소 1992 東國韓醫學硏究所論文集 Vol.1 No.-

The purpose of this study is how to have the form and theory of the five element theory in the 〈whang di nei ging〉〈黃帝內經〉by the investigation of the course of the five element introduced the ancient oriental medicine from ancient oriental philomphy. The following results were obtained. 1. The five elements in 〈Sang Seo〉(尙書) meaned the five uses of water, fire, earth, wood, metal which were insportant in living. Because these had very important meaning in ancient political and economic society, emphasized to big law(洪範) 2. The five elements in 〈zya zyern) (左傳) and 〈kuk oe〉(國語) means the five uses too, and here are the phrases of "fire win metal"(火勝金) and "water win fire"(水勝火), but these only meaned the physical interrelation. 3. In the five circulating factor theory made by Chu Yen(鄒衍) which have the attribute of the five elements, he more reasonably had argued human affairs like that a dynasty become different in step with the circulating five favors. There is the regular annual policy in the (Ye Si Gun Cu) (呂氏春秋) which closely connected nature and human living, and attached the various colors, animals, visceras, flavors, sounds, the sexagenary cycle and so on to the five elements. 4. In the <Cun Cu Bun Ro>(春秋繁露) writed in the fore-period of Han(漢) dynasty, the interactions of the five elements are concretely applicated to policy, Dong Jung Soe(董仲舒) had discrived the interactions of the five elements by the Dong Lyu Sang Dong thery(同類相動說) and the misfortune theory(災異說), emphasized the sympathy of nature and human. Though there is many contents which are superstitious and contradictory, I concider which that affcted many effects in the formation of five element theory of oriental medicine. In the <Hye Nam Ja>(淮南子) the order of matters were explained by the five element theory too, as the interrelations of the five elements were explained by the sexagenary cycle, I assume that the bud of O-Un theory(五運理論). And there was not founded the fullscale intriduction of the five element theory in the Ma Wang Tye(馬王堆) excavated finds, the Mu Yyi medical writings formed the Han dynasty(武威漢代醫簡) and the documents about Pyun Jak(扁鵲) and Sun U Ie(淳于意). 5. The application of the five element theory in the <Whang Di Nei Qing> (黃帝內經) is devided into the attachment to the fire elements, the interelations of the five elements, and Un Gi theory(運氣論). In the attachment to the five elemeant theory, it made the attachment of the five visceras of <Kum Mun Sang Seo>(今文尙書) party a standard and attached the sections of a human body, the whole internal organs, the five organs of sense, the five colors, the five flavors and the five sounds and so on to the five elements. It put to use by means of the application of the interrelation of the five elements in the transferations of the diseases and the relative severeness of a disease in step with the change of time and season. Un Gi theory(運氣論) which synthesized by the attachment to the five elements, the inter-relations of the five elements and the: climate which observerd from ancient times systematically argued the effects of weather to human. 6. The application of the five element theory in the <Whang Di Nei Qing>(黃帝內經) have the significant what had get rid of the irrational factors like that the emotion and action of human could to influense the weather, what had been formes more rational thinking by the observation of human and nature. It is required more reserches about the possibility of the formation of the doctrinal faction by the geographical effect of the Yon, Je(燕, 薺) region, the application of the five element theory in other ancient medical books and the relationship of the five element theory and Yin Yang(陰陽)

기도이물 34예의 임상분석

남부현 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1

I have observed foreign bodies in airway in 34 cases during the period from Mar. 1986 to Feb. 1991 in E.N.T. dapartment of Chungnam National University Hospital. The obtained results were as follows: 1. The most common age group was under 5 year old with 19 cases(55.9%) and male to female ratio was 4.7 to 1. 2. The major symptoms and signs were dry cough, dyspnea, vomiting, decreased breathing sound, wheezing, coarse breathing sound, fever and cyanosis. 3. Chest X-ray showed within normal limit in 9 cases(26.5%). emphysema in 8 cases(23.5%) and foreign body shadow in 7 cases(20.6% ). 4. The most frequent site in airway was left main bronchus (13 cases, 38.2%). The ratio of left and right bronchus in the position was 1.3: 1. 5. The common foreign bodies were bean and peanuts(12 cases, 35.3%), pencil cap(5 cases, 14.8%) and denture(2 cases, 5.9%). 6. The complication rate was higher in vegetable foreign body than metallic foreign body. 7. The duration of lodgement, were within 1 day in 12 cases(35.3 % ), within 3 days in 6 cases (17.6%), and within 5 days in 5 cases(14.8% ). 8. Overall complication rate was 64.7%. The most important complications were emphysema(7 cases, 20.6%), emphysema with pneumonia(6 cases, 20.6%) and pneumonia(2 cases, 5.9%) in the order. The complication rate was increased with lag time between inhalation and removal. 9. Ventilating bronchoscopy was done in 31 cases(91.2 %) sucessfully. 10. 2 cases of foreign bodies expired due to cardiac arrest.

폐폴리우레탄 폼을 이용한 유출유 흡수 : Oil, oil/water, 인공해수조에서의 흡유 특성 분석 Estimate of Sorption Properties in Oil, Oil/water, Artificial Seawater

이현구,이춘부,김형순 한국공업화학회 2003 응용화학 Vol.7 No.2

This study investigates the effectiveness of rigid, semi-rigid, and flexible waste polyurethane foams for oil spills clean up. For the three types of the waste foams used as a sorbent, rigid sandwich panel foam, head rest and high-resiliency seat foam in automotive applications were selected, respectively. And the foam of each type also was synthesized with the recipe based on it. The sorption test of the above foams were performed in different types of petroleum products, diesel, bunker-A, and-C, as a function of temperature, and in the presence and absence of water as well. Reuse-ability of the foam were confirmed through measuring for the change of maximum sorption capacity according to sorption cycles. Finally, the same experiments were carried out in artificial seawater bath in order to estimate that actual sorption properties in the sea.

중이재수술 : 원인 및 해결적 방안 It's Cause and Solution

남부현 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.2

Twenty one cases of revision tympanomastoidectomies operated by a junior staff were analyzed according to the patient's symptom, preoperative otologist's view and operative finding. Otorrhea (11 cases) and cholesteatoma (12 cases) were the main reasons for revision operation by patients and surgeon, and the blockage of ventilatory route from the eustachian tube to the middle ear space was the most common causactive underlying pathology. A successful middle ear surgery requires selected method of operation based on careful preoperative evaluation and meticulous operative technique.