통일의식의 증대를 위한 시민사회의 역할

오수열,이명찬 朝鮮大學校 社會科學硏究所 2002 社會科學硏究 Vol.23 No.1

sfs유전자의 malE유전자 발현 촉진

정수열,이희영,최용락 東亞大學校附設遺傳工學硏究所 1995 遺傳工學硏究 Vol.- No.2

CRP에 변이가 도입된 crp*¹ 유전자를 통하여 cloning된 sfs(sugar fermentation stimulation)유전자 중 nlp와 sfs4 유전자가 maltose 및 maltodextrin의 운반에 관여하는 유전자들 중에서 MalE 단백질을 증가시킴을 immunoblotling을 통하여 확인했다. 즉 MalE 단백질은 periplasmic에 존재하면서 cytoplasmic membrane에 존재하는 MalFGK 단백질과 반응하여 cytoplasm내로 maltose, maltodextrin을 운반하는 MBP(maltose binding protein)로 밝혀져 있다. Most crp* mutants isolated so far were capable of fermenting lactose despite the absence of cAMP, however, they could ferment other sugar such as maltose in the presence of cAMP. nlp and sfs4 genes, which stimulated the maltose metabolism in a crp*¹, cya::km(MK2001) host system. Especially, MalE protein(malE gene: MBP: maltose binding protein), that is transport protein with maltose and maltodextrin in periplasmic, were increased in the cloned with nlp and sfs4 genes.

야뇨증 환아들의 심리사회적 특성에 대한 다기관 연구 : 행동 및 정서 문제를 중심으로

조수철,김재원,신민섭,황준원,한상원,박관현,이상돈,김경도,김건석,서홍진,이유식,정재용,김영균,문두건,남궁미경,한창희,조원열,김영식,배기수,이종국,정우영,신의진 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

Objectives : The aim of this study was to examine the behavioral and emotional problems associated with nocturnal enuresis in Korean children. Methods : Three hundred eighteen children with nocturnal enuresis, together with their parents, completed the Child Behavior Checklist (CBCL), Disruptive Behavior Disorder Scale according to DSM-IV (DBDS), Children's Depression Inventory (CDI), State-Trait Anxiety Inventory for Children (STAIC), and Piers-Harris Children's Self-Concept Scale (PHCSC). Ninety-three normal students were selected as the control group. Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in the nocturnal enuresis group according to the CBCL results. The nocturnal enuresis group also scored significantly higher in the ADHD and ODD profiles of the DBDS. The nocturnal enuresis group was more depressed and anxious than the control group according to the results of the CDI and STAI. The mean score of the PHCSC was significantly lower in the nocturnal enuresis group when compared to the normal control group. Conclusion : The results of this study suggest that children with nocturnal enuresis in Korea have clinically relevant behavioral and emotional problems. The findings support the link between nocturnal enuresis and psychopathology in Korean children.

뉴로-퍼지알고리즘을 이용한 시변동적시스템의 추적응답성능개선에 관한연구

최수열 瑞逸大學 1999 論文集 Vol.17 No.-

본 논문은 퍼지이론과 다충 PID신경회로망을 결합한 뉴로-퍼지 알고리즘을 제안하였다. 제안된 방식의 퍼지추론의 장점을 갖고있는 퍼지논리를 이용하여 뉴런활성화 함수의 기울기를 변화시킨다. 이기법은 뉴런의 조기포화상태를 방지할 수 있어 미지의 시변동적 시스템의 추적성능평가에 효율적인 방법이다. 시변의 특성을갖는 동적시스템에 본연구를 시뮬레이션 통하여 추적성능을 평가 하였다. 그 결과 제안된 뉴로-퍼지기법이 기존 PID 신경회로망제어기보다 추적성능이 개선됨을 확인하였다. In the study, Neuro-fuzzy control combined fuzzy theory and multi-layer PID neural network is proposed. The method proposed changes the slope of neuron activation function by using fuzzy logic which has merits of inference. It is very efficient to prevent a presaturation of neuron and tracking performance evaluation of unknown time variable dynamic system. This paper, proposed neuron-fuzzy control was evaluated appling tracking performance evaluation to the time variable dynamic system by using computer simulation. As a result of the study, we identified that tracking performance inprovement was developed more in case of connecting proposed neuro-fuzzy controller than conventional multi-layer PID neural networks controller.

고차구조 변화에 따른 저밀도폴리에틸렌 박막의 전기적 특성

신종열,신현택,이수원,홍진웅 한국산업안전학회 2002 한국안전학회지 Vol.17 No.4

The electrical properties of polyethylene are changed by the superstructure. Such crystalline polymer as polyethylene or polypropylene changes crystallinity and products spherulite or trans-crystal when it is cooled slowly. In this study, after thermal treatment of LDPE at 100[℃], in silicone oil for an hour, we made specimens in order of slow cooling, water cooling, quenching according to cooling speed. Also, to study the influence of electrical properties due to the superstructure change, we analyzed physical properties and performed dielectric breakdown experiments using DC and impulse voltage. Moreover we measured space charges in bulk using Laser Induced Pressure Pulse(LIPP)method. Trap level of specimen is 0.064[eV] at the low temperature region, 0.31[eV] at the high temperature region in DC dielectric strength, 0.03[eV] at the low temperature region 0.0925[eV] at the high temperature region in impulse dielectric strength. As its result shows that the quantity of charges induced from the electrode surface increases with applied voltage time, and the distribution of space charges in samples increases the quantity of charges in proportion to applied voltage.

개량조개의 煮熟冷凍品에 關한 細菌學的 硏究

張壽賢,鞠重烈 군산대학교 1978 群山水産專門大學 硏究報告 Vol.12 No.2

VA-N, TMA, Coliforms, E. coli and Bacterial flora in the raw sample of Henclam, in the Henclam by their process and the Henclam by date during the frozen storage were studied. The results were as follows : 1) The value of VB-N and TMA got increased according to the period of frozen storage. But the increased rate of TMA was higher than that of VB-N. 2) The number of General bacteria, Coliforms and E. coli in the sample selected after the third washing were 2.6×106 cells/g, 3.1×102 cells/g and 2.8×10 cells/100g. The sample showd maximum of bacterial contamination compared with others. 3) Pseudomonas and Vibrio of Bacterial flora in the raw Henclam were superior in number. 4) Micrococcus and Moraxella of Bacterial flora in the Period of frozen storage were superior, in number, showing 35% and 25%. 5) Klebsiella aerogenes group of Coliforms showed maximum of 50.7% compared with others in the period of frozen storage.

아귀肉의 冷凍貯藏 中 燐酸鹽의 鐵理效果에 關하여

鞠重烈,金鐘培,張壽賢 군산대학교 1983 群山水産專門大學 硏究報告 Vol.17 No.1

Monkfish and it's liver went on increasing in demand by capturing the public fancy as a favourite food and their export. The control on various denaturation and drip of monkfish muscle during frozen storage is very important problem for keeping on their good quality and increasing their export. In order to investigate the effect of phosphates on the denaturation of monkish muscle during frozen storage, the solubility of salt soluble protein, thaw-drip, absorbed phosphorus, volatile basic nitrogen, thiobarbituric acid value and brown-pigment density were examined. 10% simple solutions and mixed solutions of sodium tripyrophosphate, sodium pyrophosphate and sodium metaphosphate were prepared respectively as table 1. The muscle from the underside of abdominal cavity to the upper side of tail was cut into fillets(3cm x 5cm x 10cm) and then the filets were dipped in the phosphate solution for 5 minutes respectively. Then the samples were sealed up into polyethylen bags and kept frozen at -20℃. The experiments on denaturation in the muscle were carried out 3 times at intervals of 20 days. The results were summarized as follows: 1) Phosphorus contents remained in the muscle were within the tolerence limit by FAO/WHO. 2) The free drip quantity released from the samples treated with phosphate was remarkably decreased than that of the control sample. Among the samples, No. 7 sample showed the least quantity. 3) The solubility of salt soluble proteins in muscle treated with phosphate was not decreased than that of the control remarkably. Therefore it was considered that the effect of phosphate on the muscle was effective. Among the samples, No. 7 was most effective. 4) It revealed that the sample showed in the higher contents of remained phosphate showed a tendeney to less released drip, and it caused a tendeney to enhancing of solubility for salt soluble protein. 5) The variation of brown-pigment density, volatile basic nitrogen and TBA-value were not remarkable.

정보 통신 시스템의 접지와 노이즈에 관한 연구

崔洙烈 瑞逸專門大學 1993 論文集 Vol.11 No.-

정보통신기기의 오 동작 방지와 전송신호의 오류방지 및 미시적 감전에 의한 인체의 보호, 급작스런 전기적 위험 요소로부터 통신장비를 보호하여 통신데이터의 전송율을 향상시키기 위해서는 정보통신시스템의 통신설비장비와 통신선로계통에 접지가 필요하다. 특히 일반적인 정보통신기기의 접지방법, 전화국이나 빌딩내의 전자통신기기의 접지방법과 통신 선로계의 접지에 대해 연구해 본 결과는 다음과 같다. 1. 공영접지시스템은 여러개의 통신기기를 사용시 적용되는 방법으로 저전압 직류전원의 공급으로 이루어진 통신장비에 많이 사용되고, 이 때 직류전원장치의 “+”에는 각각의 통신장비에 접속되어 있는 회로용 접지와 전원용 접지를 공용으로 통신용접지를 하여야 한다. 2. 독립접지 시스템은 전화국과 같이 고압 배전선으로 전원을 공급받아 전력 장치를 거쳐 통신 장비에 직류전원을 공급할 때는 각각의 설비에 독립접지를 하여야 한다. 3. 기준접지 시스템은 빌딩내의 전자통신기기의 안정된 가동을 위해 적용되는 시스템으로, 특히 주파수 대역폭이 높은 컴퓨터와 같은 장비에 발생하기 쉬운 고주파 장해의 노이즈를 경감시키기 위해서는 빌딩의 기준접지와 단독통신장비의 접지를 병용할 때가 단독으로 통신장비를 접지 했을 때 보다 접지임피이던스가 낮아져서 노이즈가 경감한다. 4. 통신선로계의 접지에서는 기존 유도선의 반대 방향으로 차폐케이블에 전류를 흘려서 자속을 교차 시키고, 차폐케이블의 접지저항을 작게하면 유도전압을 감소시킬 수 있다. In communicational equipments and their linen networks of informational communication systems, earth technic could minimize operational failure of various informational communiction systems, transmissional errors, and factors affecting transmissional rate deterioration of data. The following results, accordingly, can be achieved through the theoratical research to existing earth technic. 1) Common earth system is frequently used for the communicational equipments which are operated by power supply of low D.C voltage, and in this case the circuit and power supply earth, connected with each communicational equipment, should commonly be earthed to "+" terminal of D.C power equipment. 2) Independent earth system should have each equipment independently earthed when D.C power is supplied to communicational equipment through power equipment from high voltage distribution cable like a telephone exchane. 3) Basic earth system is a system applied for the stable operation of electric-electronic equipments in a building, and to minimize noise from high frequently band, basic earth of the building and earth of individual equipment should be shared because noise could rather minimized with low impedance than a communicational equipment is earthed individualy. 4) In earth system of communication line network, when magnetic flux is crossed by making electric current flow into a shield cable toward the oppose direction of present induction line and earth resistance of shield cable is lowered, Induction voltage could be minimized.

3D 모델링 기법을 이용한 작업자효율 및 생산성 분석

이수철,서승록,윤영수,양승열 한국정보전략학회 1999 추계공동학술대회 논문집 Vol.- No.01

In this paper, we developed a simulation model of a car parts assembly line to improve the system performance such as worker's utilization balancing, productivity. This simulation model has been developed using QUEST, a true 3D discrete event simulation packcage that is designed for modeling and analysis of manufacturing systems. We have suggested the results obtained to improve the system performances of an existing production line.

충전재-탄성체 상호작용 : Ⅱ. 상압플라즈마 처리가 나노구조의 실리카 표면특성에 미치는 영향 Ⅱ. Influence of Atmospheric Pressure Plasma on Surface Properties of Nanoscaled Silicas

박수진,진성열,강신영 한국고무학회 2005 엘라스토머 및 콤포지트 Vol.40 No.1

본 연구에서는 실리카/고무 복합재료의 기계적 계면 물성과 열안정성에 대한 산소플라즈마의 영향에 대하여 살펴보았다. 실리카의 표면특성은 XPS와 접촉각 측정을 통하여 살펴보았다 실리카/고무 복합재료의 기계적 물성과 열안정성은 각각 인열에너지 (G_(IIIC))와 열중량분석(TGA)를 통하여 관찰하였다. 실험결과, 플라즈마 처리시간이 증가함에 따라 실리카 표면에 산소가 함유된 극성 관능기의 도입량이 증가하였으며, 이에 따라 고무 복합재료의 인열에너지와 열안정성이 향상되었다. 이러한 결과는 NBR과 같은 극성고무가 산소가 함유된 관능기가 도입된 실리카와 상대적으로 높은 상호작용을 하기 때문으로 판단된다. In this work, the effect of oxygen plasma treatment of nano-scaled silica on the mechanical interfacial properties and thermal stabilities of the silica rubber composites was investigated. The surface properties of the silica were studied in X-ray photoelectron spectroscopy (XPS) and contact angles. And, their mechanical interfacial properties and thermal stabilities of the composites were characterized by tearing energy (G_(IIIC)) and thermogravimetric analysis (TGA), respectively. As a result, it was found that the introduction rate of oxygen-containing polar functional groups onto the silica surfaces was increased by increasing the plasma treatment time, resulting in improving the tearing energy. Also, the thermal stabilities of the composites were increased by increasing the treatment time. These results could be explained that the polar rubber, such as acrylonitrile butadiene rubber (NBR), showed relatively a high degree of interaction with oxygen-containing functional groups of the silica surfaces in a compounding system.