치환용매 변화에 따른 비대칭 Ceellulose Acetate 막의 기체투과특성

정광보,장승현,남석태 한서대학교 산학협력연구원 부설 환경연구소 2000 환경연구소 논문집 Vol.3 No.-

Gas permeation behavior was examined for asymmetric cellulose acetate membrane prepared by changing the acetone evaporation time and drying solvent. By changing the acetone evaporation time, the gas permeation rate decreased for the first 2 minutes and then increased gradually for the membrane of i-PrOH exchange drying. Gas permeation rate was in the order of He>N₂>O₂ and separation factor was about 1.9 for the membrane of 9 minute acetone evaporation. The permeation mechanism appears to be the combination of Knudsen flow and viscous flow. The effect of Knudsen flow was increased with acetone evaporation time, while the effect of viscous flow increased for the membrane of EtOH exchange drying.

자폐아동의 기본운동교육프로그램 참가가 지각운동능력발달에 미치는 영향

이창섭,이명휘,현광석,이창규,조병준 한국특수체육학회 2003 한국특수체육학회지 Vol.11 No.1

The purpose of this study was to examine how the program of basic movement can influence and change the capability of perceptive movement among the children with autism. Four subjects (age3-5) participated in the specially designed program, three times a week for four weeks. For the purpose of this study, Oseretsky's Motor Development Test and PMDT(perception-Movement development Diagnosis Test) were used. The results were as follows; First, the upper limb performance of the children with autism showed significant changes by the movement education program. Second, along with the development of upper limb performance, the motor development index of the children with autism showed significant changes. Third, the Oseretsky spectrum of movement, of the children with autism responded to the order of mono-movement capability, hand-movement and co-operative movement. Fourth, the movement education program was more effective for the children with autism than for the retarded children in view of motor development capability. Fifth, the movement education program was more effective for the child with autism of multi-movement characteristics.

일부 시판세치제의 비교치아마모도 및 경과시간에 따른 유효불소농도변화에 관한 연구

장덕수,이병진,배광학,방금석,이원재,노정,백대일,김종배 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.3

The purpose of this study was to assess relative tooth abrasivity and to measure effective fluoride concentration of dentifrices selling in Korea for help consumer's selection of suitable dentifrice. Assessment of the abrasion on tooth produced by different dentifrices were carried out on bovine teeth in the laboratory and tested by radioactive dentin abrasion method. And total soluble fluoride concentrations within the dentifrices was determined using fluoride ion selective electrode with standard curve obtained from standard solutions of known fluoride concentration. 10 dentifrice samples were stored at 49t for 15 weeks and the measurements were made for each dentifrice in 1 week, 2 weeks, 3 weeks, 13 weeks and 15 weeks and 11 dentifrice samples were stored at 40.6C for 3 weeks and the measurements were made for each dentifrice in 1 week and 3 weeks. Tooth abrasivity of selling dentifrices is suitable for toothbrushing but dentifrice which recommended for patient who have tooth abrasion or erosion was somewhat high abrasivity level. Effective fluoride concentrations of selling dentifrices were maintained generally optimal level. But some dentifrices contaning CaCO_(3), as abrasive were decreased as time elapsed. It was suggested that relative tooth abrasivity must be marked on package and fluoride level should be maintained acceptable level in dentifrices for consumer's selection of suitable dentifrice.

댄스스포츠 참여가 청각장애인의 사회,정서 발달에 미치는 영향

이창규,현광석,조병준,김영표,김용진 한국특수체육학회 2002 한국특수체육학회지 Vol.10 No.2

The purpose of this study was to find out the effects of participation in dance sport programs on development of social-emotional behaviors of deaf students. The subjects were 20 deaf students of middle and high school for special education, and the subjects were randomly devided into participant group(n=10) and non-participants group(n=10). Meadow/Kendall social-emotional asessment inventory for the deaf students(1980) by Kim(1990) were administered by specialized teachers of the students. The statistical procedures used to analysed the hypotheses were ANCOVAs. The major findings of this study were that deaf students who regularly participated in dance sport activities had significantly higher level of the development of social adaptation, self-consciousness, and emotional adaptation rather than non-participants. It could be concluded in this study that sport activities had significant effects on the development of social-emotional behaviors of deaf students.

콩코드 납축전지의 SOC 추정

전창완,채광석,임준규,오명섭,박명신 순천향대학교 부설 산업기술연구소 2004 순천향 산업기술연구소논문집 Vol.10 No.1

Nowadays many battery-based systems like electric vehicle have appeared. As a result efficient battery management becomes important. In this paper, state-of-charge (SOC) estimation of a Concode lead acid battery is discussed. The SOC estimation problem plays an important role in battery management system(BMS). In this paper, an SOC table is established by many charge and discharge experiments. This table can be used to development advanced SOC estimation algorithms.

Mandibular overclosed patient를 위한 oral rehabilitation

송창용,김광석,이상돈,백희선,박찬운 全北大學校 齒醫學硏究所 1985 전북치대논문집 Vol.3 No.1

圓光醫大 附屬 第2病院 神經精神科 患者에 對한 統計的 考察(Ⅱ)

박민철,장광철,김상원,김한주,유미경,김훈,유용진,김현정,박남진,오상우,이귀행,노승호,백영석 圓光大學校 醫科大學 神經精神科學敎室 1992 圓光精神醫學 Vol.8 No.1

본 연구는 1986년 7월 11일부터 1991년 7월 10일까지 원광의대 부속 제2병원 신경정신과에서 의래 및 입원치료를 받았던 6,072명의 환자를 대상으로 병원 역학조사를 실시하고 그 결과를 1차조사 (박민철 등1986)와 비교했다. 1.전체 환자 중 남자가 54.4%로 여자보다 많았고, 이리와 이리 인접지역이 84.0%로 대부분의 지역을 나타났다. 의료보장상태는 보험환자가 57.1%, 의료보호환자21.8%, 일반환자 21.1%였으며 연령별로는 20대 24.6%, 30대 22.8%로 20대 30대가 절반정도를 차지했다. 2.외래환자에서는 신경중성장애가 46.0%로 가장 많고 정동장애, 경련성장애 순이며, 입원환자에서는 정신분열증이 30.5%로 가장 많고 기질성정신장애, 정동장애의 순이었다. 3.남자는 신경증성쟝애(23.4%), 정신분열증, 기질성정신장애 순이고 여자는 신경증성장애(39.9%), 정동장애, 정신분열증의 순이었다. 남자가 여자보다 많은 진단은 알코올정신장애(94.6%), 기질성정신장애, 소아정신장애 순이고, 여자가 남자보다 많은 진단은 정동장애(64.5%), 신경증성장애였다. 4.진단별 연령분포에서 신경증성장에는 30대(25.3%), 20대, 40대 순이고, 정신분열증은 20대(40.5%), 30대, 40대 순이며, 정동장애는 20대, 30대, 50대 순이나 비교적 비슷한 융이었다. 5.진단별 발병연령에서 신경증성장에는 20대, 30대가 절반이고,정신분열증은 20대(51.3%), 10대, 30대 순이며 정동장애는 20대(30.7%), 30대, 50대 순이었다. 진단별 평균 발병연령은 신경증성장애 32.7세, 정동장애 36.1세, 정신분열증 23.6세였다. 6.진단별 이병기간은 2년이상이 신경증성장에 28.3%, 정신분열증 68.5% 정동장애 43.9%인데 전체적으로 41.0%였다. 진단별 평균 이병기간은 정신분열증 73.2개월, 정동장애 45.5개월, 신경증성장애 29.5개월이었다. We examined epidemiologic study of 6,072 patients who visited Wonkwang Neuropsychiatric hospital since July 11 of 1986 until July 10 of 1991 and compared this results with previous study(Park et al 1986). The study revealed as follows:1. Of total patients males visited this hosptial more than females as 57.1%, Most of them(84.0%) resided Iri and neighbouring Iri. In the point of insurance, insured patients, medicaid patients and uninsured patients were 57.1%, 21.8% and 21.1% respectively. On the distribution of age, the twenties, the thirties were 24.6%, 22.8% respectively and twenties and thirties were about half of total patients. 2. Of outpatients neurotic disorder was the most as 46.0%, secondly mood disorder and thirdly convulsive disorder, but of inpatients schizophrenia was the most as 30.5%, secondly organic mental disorder and thirdly mood disorder. 3. Of males neurotic disorder was the most as 23.4%, secondly schizophrenia, and thirdly organic mental disorder, but of females neurotic disorder was the most as 39.9%, secondly mood disorder and thirdly schizophrenia. alcoholic mental disorder(94.6%), organic mental disorder, child mental disorder were mostly found in males,but mood disorder(64.5%) and neurotic disorder were mostly found in females. 4. On the distribution of age neurotic disorder was found the most in the thirties(25.3%), next in the twenties and in the forties, and schizophrenia was found the most in the twenties(40.5%), next in the thirties and in the forties, but mood disorder was found the most in the twenties, next in the thirties and in the forties but revealed similar rates relatively. 5. On the distribution of age of onset neurotic disorder developed nearly half during the twrnties and the thirties, schizophrenia developed mostly during the twenties (51.3%), secondly the teens and thirdly the thirties, but mood disorder developed firstly the twenties(30.7%), secondly the thirties and thirdly the fifties. on the average age of onset of illness neurotic disorder, mood disorder and schizophrenia were 32.7 years, 36.1 years and 23.6 years respectively. 6. On the duration of illness more than two years was 28.3% in neurotic disorder, 68.5% in schizophrenia and 3.9% in mood disorder and on the average duration of illness schizophrenia, mood disorder and neurotic disorder were 73.2 months, 45.5 months and 29.5 months respectively.

EMBLEM SYSTEM 아파트내 IEEE1394 VESA 기반 통합 통신배선 NETWORKING 기술 제안

정영철,오미숙,장민혁,이광재,박종안 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2

As telecommunication network users and information appliances increase, efficient home networking environment is needed for bulk A/V data transmission in real time. For this need, the integrated applicable Interfacing technologies using IEEE1394 and UTP cables are considered to be applied to the apartments architecture. In this paper, we firstly review the residential cabling environment of apartents according to the emblem system of MIC in a point of home networking software technologies development and information appliances increase in domestic IT situation, and finally propose a integrated home network infrastructure architecture for users' convenience on the basis of the implementation and experiment on the high speed interfacing environment in the emblem system apartment using the low cost interfacing media.

154kV용 활선 안전 경보기 개발에 관한 연구

정민규,조현광,우종수,안창회,서영석,김응태,박창기,오세득 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.1

In this report we developed a high voltage alarm for the safety of workers who check and repair the 154kV power line. This high voltage alarm we developed is attached on workers' helmet and alarms automatically in order to let workers know when workers work over the safety distance near 154kV power line. Until now the exact safety distance hasn't been regulated and high voltage alarm we've been using was for the range of 6∼22.9kV power line. We fabricated this high voltage alarm on the basis of electric density and actual measurement of power line. The experimental result was that high voltage alarm at 66kV power line alarmed near 90cm, at 154kV power line alarmed near 160cm from the line. Accordingly, we developed the new high voltage alarm which is operated in the range of 66∼154kV power line.

2-Furyl chalcone유도체에 대한 Thiourea의 친핵성 첨가반응 연구

최봉종,배광석,이기창 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-

The addition reaction kinetics of, 2-furyl chalcone derivatives were investigated by ultraviolet spectrophotometery in 30% dioxane-H2O at 25℃ The structure of these compounds were ascertained by means of ultraviolet, melting point IR and NMR spectra. The final product was 2-furyl chalcone- β -thiourea synthesized by the addition of thiourea for the 2-thienyl chalcone. The rate equations which were applied over a wide pH range (pH 1.0∼ 13.0) were obtained. The substituent effects on 2- furyl chalcone derivatives were studied, and the addition reaction were facilitated by electron acting groups. On the basis of the rate equation and effect of substitutent general base, the plausible addition reaction mechanism was proposed Below pH 4.0 It was only proportional to concentration of hydronium ion, At pH 4.0∼9.0 neutral thiourea molecule or anion competitively attacked on the double bond. Above pH 10.0, It was proportional to concentration of hydroxide ion.