경희대학교 수원캠퍼스 노천극장 주변 공원 기본계획

김동찬,이윤수,권오원,민창기,김태현,박경모 경희대학교 디자인연구원 2004 예술· 디자인학연구 Vol.7 No.1

We, Kyung-hee University in Suwon has planned to build an open-air theater behind the building of natural science, and feel the need of creating places for cultural life and recreation. As the origin aim of this construction and landscape, university students can use this facilities and place for their daily relaxation and cultivation of emotion, and they also can utilize them for places of their meetings and events. Concerning the following completion of the UN Peace Park, our theater and the surrounding places will expectingly play important roles for the park because the open-air No-cheon theater is included in the full site of the UN Peace park. The focused elements of this basic plan are maintaining the basic plan of the UN Peace Park, forming the visually creative background, of the open-air theater cultural and recreational places, balancing and integrating human, nature, and the useful facilities.

흉선종 제거후에 발생한 재생 불량성 빈혈 : 증례보고

전원선,이상철,김현정,배상병,김찬규,이남수,박노진,이규택,박성규,홍대식,박희숙,원종호 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.2

Thymoma is associated with myasthenia gravis, Pure red cell aplasia, and autoimmune diseases such as autoimmune hemolytic anemia, aplastic anemia, and hypogammaglobulinemia. It's association with aplastic anemia is rare and aplastic anemia appearing after surgical removal of thymoma is especially rare. The authors hereby report a case of aplastic anemia occuring in a patient who was diagnosed with thymoma and myasthenia gravis and had the tumor surgically removed. The patient was treated with anti-thymocyte globulin, cyclosporin, and prednisolone, and showed partial remission with hematologic improvements after 12 months.

청각장애자 운동지도를 위한 프로그램 고찰

김정수,박정래,노일환,원충희,김흥식,강신일,박찬홍,김달영,이철원,이찬규 公州大學校스포츠科學硏究所 1987 스포츠科學硏究所論文集 Vol.- No.1

Hearing impairement in varying degrees constitutes one of the most common disabilites affecting school aged children. Eight out of every 1,000 students under the age of twenty have significant hearing loss. Hearing disabilities range from slight to total loss of sound perception. Statistics indicate that only one out of every ten hearing impaired children will become deaf. Most motor activities can be included students may possess low levels of static and/ or dynamic balance, but the greatest majority possess normal motor and physical capabilities. All the hearing impaired youngsters should be properly assessed and given the identical testing batteries as normal children. Hearing impaired students have, essentialy, a communication handicap and suffer from inability to understand verbal instructions. All physical educators should be able to use minimal finger spelling and signing for hearing impaired students.

독성물질의 세포사 기전 및 세포사 유발물질의 검색법 개발에 관한 연구(Ⅱ) : 망간 신경독성을 이용한 파킨슨증 모델의 세포사 Studies on the Mechanism of Parkinsonism induced by Manganese

김종민,박창원,오정자,이보경,서경원,서수경,김규봉,김종원,김광진,김영옥,전범석,박찬웅,이선희 식품의약품안전청 2001 식품의약품안전청 연보 Vol.5 No.-

1960년대 이후 파킨슨병의 유발물질 중 한 후보로서 망간이 주목받으면서 많은 역학적, 병러학적 연구가 수행죄브다. 그러나 망간이 파킨슨병을 직접 일으키는지, 혹은 파킨슨병과 관련된 부위의 신경세포를 파괴시쿡 파킨슨증만을 초래하는 것인지가 아직 정립되지 않은 실정이다 본 연구에서는 실험동물모델에서 행등학적 변화 측정 및 병리학적, 샐화학적 연구를 통하여 망간의 과다노출글 따른 파킨슨병 유발 여부를 확인하고자 하였다. Sprague-Datylet· 렛드에 망간을 1, 2, 5, 10 mgAg/day의 응량으로 30일 등안 복강 투여하였을 때 모든 망간투여군에서 운동성 감소가 관찰되었다. 뇌조직의 망간 함량을 ion chromatograph?로 측정한 결과 중뇌 흑질과 기저핵 선조체에서 망간 함량의 뚜렷한 증가 소견이 관찰되었으며, 니슬염색체서 선조체의 신경세포수의 유의성 있는 감소가 관찰되었다. 그러나, 흑질의 TH효소 면역염색, GFAP 면역염색, 흑질과 선조체의 T릿효소 western blot 결과는 대조군과 차이가 없었다. 이상의 결과에서, 망간-파킨슨증 모델에서 파킨슨증어 유발되는 기전은 흑질 도파민성 신경 세포의 신호를 받는 선조체 씬경세포의 사멸에 의한 것으로 생각된다. 결론적으로, 망간 독성에 의한 파킨스증 모델에서는 파킨슨 병과는 달리 흑질 도파민성 신경세포의 세포사는 관여하지 않는 것으로 관찰되었다. Manganese(Mn) intoxication causes a parkinsonian syndrome. It may be difficult to distinguish Mn-induced parkinsonism from idiopathic Parkinson disease(IPD). Neuropathological descriptions on the brains with Mn intoxication showed the perferential damage in the globus pallidus and substantia nigra pars reticularis. Pathological reports on the substantia nigra pars compacta(SNpc), a mafor focus of pathologic changes in IPD, are discordant and controversial. The SNpc involvement is of critical importance for the elucidation of pathogenesis of IPD. Therefore, the neurodegeneration in SNpc was investigated in the experimental model of Mn neurotoxicity. Sprague-Dawley rats were administered with manganese chloride(1, 2, 5, 10 mg/kg/day, i.p.) for 30 days. Treated animals showed low levels of distance-traveled from locomotor activity tests. Ion chromatography revealed that Mn accumulation was significant in SN and basal ganglia in Mn-treated animals. Nissl staining showed neuronal loss of the striatum in all treated animals. The degree of neurodegeneration in SN was determined by immunohistochemical staining of tyrosine hydroxylase(TH). The numbers of TH-positive cells on nigral sections were not different from each groups(P>0.05). The densities of glial fibrillary acidic protein immunoreactivity from SN were similar between groups. TH-westen blotting showed no differences between treated animals and controls. In conclusion, the SNpc remains intact in Mn intoxication, and Mn-induced parkinsonism may be caused by damages of output pathways downstream to the nigrostriatal dopminergic system.

Beam形 Load Cell의 FEM Simulation과 그 電氣的特性

朴贊元,安光熙,崔圭錫 강원대학교 산업기술연구소 1992 産業技術硏究 Vol.12 No.-

In this paper, we simulate and calculate the stress and output voltage of the beam structure load cells by using FEM as varing physical structure parameters and loading positions. It is proved that stress enhance as the increase of the notch pitch and radius of the load cell, but decrease as the increase of the notch thickness and beam width. The results are good matched for basic formulas of the single fixed beam, and are verified our simulation is correct. Also, it is found that the stress characteristics of the load cell is varied according to loading positions with structure parameters, and caculated output voltage of the load cell approximate to those of the real manufactured ones. As a result, this study will offer efficient design and analysis technique for making special and variety capacity of load cells.

유기산 완충용액의 포화도가 법랑질 및 상아질의 재광화에 미치는 영향과 수산화인회석의 AFM 관찰

박정원,허복,이찬영 대한치과보존학회 2000 Restorative Dentistry & Endodontics Vol.25 No.3

Dental caries is the most common disease in the maxillofacial area. There are many factors contributing to its developnent , bu complete understanding and prevention is not fully known. Since the structure of the coronal and root portion of the tooth is different, the remineralization and demineralization process is also known to be different. In this study, by using a partially saturated buffer solution, we created artificial enamel and dentin caries and evaluated mineral loss. A remineralization solution with four different degrees of saturation (degree of saturation , group 1, 0.268, group 2, 0.309 group 3, 0.339, group 4, 0.390, PH 4.3, F-2ppm) was used on a demineralized specimen. The mineral precipitating quantity and depth was evaluated by using microradiography. Using an atomic force microscope(AFM) . hydroxyapatite crystals of normal, demineralized. and reminenalized enamel and dentin were evaluated. The results were as follow: 1.As the degree of saturation of the remmeralizlng solution increased. the mineral precipitaion in the enemel was increased. In group4. mineral precipitaion was limited near the surface 2.As the degree of saturation of the remineralizing solution increased, the mineral precipitation in the dentin was decreased and it occured in a deeper portion. In group 4, however, mineral precipitation occurred on the surface and its quantity increased 3.There was a statistically significant interaction between enamel and dentin mineral content changes on specimens treated with remineralization and demineralization solution (demineralization r = 0.44 remineralization r= 0.44, p〈0.05) . 4.Demineralized hydroxyapatite crystal showed central and perpheral dissolving and widening of inter crystal spaces under the AFM 5.In dentin remineralization small crystral precipitaion occurred between by the large crystals We conclude that by adjusting acidulated buffer solution's degree of saturation, we can control of enamel and dentin reminetalization. In addition. the AFM is highly useful in evaluating changes in remineralized and demineralized hydroxyapatite crystals.

우리나라 경기변동의 영구성과 일시성

朴元巖,許贊國 한국국제경제학회 2004 국제경제연구 Vol.10 No.3

본 고에서는 단일변수 비관측요인 모형과 동태적 2요소 체제전환모형을 이용하여 우리나라 경기변동의 영구성과 일시성에 대하여 고찰한다. 우리나라 산출량의 추세적 변동을 추정함에 있어서 가장 뚜렷한 특징은 외환위기 이후의 자료를 포함할 때 산출량의 추세적 변동이 심화된다는 점이다. 이는 외환위기 충격이 전 기간에 걸쳐 산출량 변동에 영향을 미쳤음을 의미하므로 체제전환모형을 사용하였다. 체제전환의 가능성을 고려할 때 외환위기 이전과 이후에 걸쳐서 추세성장률의 변동폭 및 경기변동의 영속성이 커진다. We investigate the permanent and temporary components of business fluctuations in Korea, using univariate unobserved component model and dynamic two-factor regime-switching model. Korea's financial crisis in 1997 changed the dynamic properties of business fluctuations in the direction of increasing the permanent component. We show that the regime changed to reduce the output in the first and second oil shock period and financial crisis period permanently.

의과 대학생의 심리적 특성과 학업 성취도와의 관계

박상학,박찬원,조용래 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.5

연구목적 : 의과대학생들의 심리적 특성을 조사하여 이러한 특성과 학업 성취도와의 관계를 알아보고, 더 나아가 그들의 학업 성취도를 예견할 수 있는 요인을 탐색해보고자 하였다. 방 법 : 의과대학 의학과 1, 2, 3학년에 재학중인 학생 489명을 대상으로, 이전 유급 횟수, 여러 가지 심리적 특성들을 자기 보고형 설문지로 조사하였고, 이를 학기말 성적과 비교, 의과 대학생의 심리적 특성과 학업 성취도의 관계를 조사하였다. 결 과 : 1) 유급 경험자는 34.3%, 편입 경험자는 6.7%였다. 유급 경험 횟수는 1회부터 6회까지였다. 2) 이전 유급 경험은, 성적(G.P.A), 수행 불안, 자기 효능감과 각각 유의한 부적 상관을 나타낸 반면에, 시험 불안과는 유의한 정적 상관을 나타냈다. 이전 유급 경험은, 우울, 자기 불일치, 상태 불안등과 유의한 상관을 보이지 않았다. 3) 학업 성취도는 성별 및 자기 효능감 양자 모두와 각각 유의한 정적 상관을 나타낸 데 비해, 우울, 자기 불일치, 시험 불안, 상태 불안등과는 유의한 부적인 상관을 보였다. 4) 나이, 성, 편입경험, 유급, 우울, 자기불일치, 시험 불안, 상태 불안, 수행불안, 자기 효능감 등은 학업 성취도의 10.86%를 설명하였다. Objective : Several psychological characteristics of medical students were investigated, the relationship between these characteristics and academic achievement was identified, and futhermore some significant predictors of their academic achievement were explored. Method : Subjects were a total of 489 medical students, 1st, 2nd, 3rd year in Chosun university as of in 1998. We administered self-report questionnaires including age, sex, grade failure, and transfer experience. And Beck Depression Inventory, Achievement Self-Discrepancy Scale, Self-Efficacy Scale, State-Trait Anxiety Inventory(state), Test Anxiety Scale, and the Inventory of Performance Anxiety were handed out to them on April 1998. After the semester, we examined the academic achievement according to grade point average. Person's correlations were calculated to explore the relationships between grade failure and other psychological variables, as well as the relationships between academic achievement and other psychological variables. The amount that academic achievement was explained by the psychological variables was obtained using multiple regression analysis. Result : 1) In 489 students, grade failure was 168(34.3%), non-failure was 321(65.7%), and transfer was 33(6.7%). 2) While G.P.A., performance anxiety, and self-efficacy, respectively, were negatively correlated with the failure, test anxiety was positively correlated with the grade failure. There were no statistically significant correlations between grade failure and depression, self-discrepancy, or state anxiety. 3) Academic achievement was positively correlated with both gender and self-efficacy, whereas it was negatively correlated with depression, self-discrepancy, test anxiety, and state anxiety, respectively. Female students were better than males in academic achievement. 4) The amount that age, gender, grade failure, transfer, depression, self-discrepancy, test anxiety, state anxiety, performance anxiety, and self-efficacy accounted for academic achievement was 10.86% totally. Conclusion : Gender, grade failure, and depression in medical students affected their academic achievement significantly.

복합레진의 조건등색에 관한 연구

박기정,황윤찬,김선호,오원만,황인남 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.5

This study was done to present a criterion in selection of the most proper light sources and materials by measuring metamerism index(MI) of the light curing composite resins with spectrocolorimeter. Metamerism is defined when two objects appear to be the same color in one illuminant but different in another. This is due to the fact that they have different spectral curves that fail to match under the second illuminant. In this study, A1 & A3 shade of five light curing composite resins (Esthet-X, Filteck Z250, Filteck A110. Charisma. Vitalescence) were chosen based on Vita shade. Five samples were made for shade of each product with Teflon mold (diameter: 15mm, thickness: 2mm). Metamerism index of each samples on a Barium sulfate plate(L^(*)=96.54, a^(*)=0.19, b^(*)=0.01) prepared for sample fixation were measured with spectrocolorimeter(Miniscan XE plus. Model 4000s. Hunter Lab. USA) by applying standard light source D_(65), C. Fcw, TL84 and A. Standardization was done with reference standard(X=80.8, Y=85.7, Z=90.8) and light trap. The results were as follows. 1. Different resins with same Vita shade showed recognizable color difference (ΔE^(*)>2). 2. All composites had MI below accepted value 0.5 between standard illuminant(D_(65), C, & A) and below 1.5 under fluorescent condition (Fcw & TL84). 3. MI value between D_(65) and A showed higher value than MI value between other source of light(p<0.01). 4. All resins except Z250 showed MI value that A3 is higher than A1 between D_(65) and A(p<0.05).

방호장치용 전원순단시험기의 개발

박찬원 강원대학교 정보통신연구소 2000 정보통신논문지 Vol.4 No.-

This paper describes a power interrupt tester which is highly suitable for microprocessor-based hardware test device for safety guarding systems. Single-chip microcontroller is employed to generate power interrupt signal, and the built-in software controls peripheral hardwares with many functions. The system uses the design concept of deverse redundancy and software algorithms as well as additional functions which is useful in practical use. Experimental results showed that the proposed system is effective enough to practical applications and can provide an good application tool for the electronic appliance manufacturer as a test device of hardware and software debugging.