부식산의 광촉매 산화 공정에 도입된 여러 종류이 상용 TiO₂비교연구

문경숙,김다희,이동석 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.B

In this study, the effects of crystalinity, composition and particle size of TiO2 catalysts on the degradations of humic acid in aqueous solution was assessed using the commercially avaliable TiO2 particles. Photocatalytic oxidations of humid acid (HA, Aldrich Co.) solution were carried out in case of adding different types of TiO2 catalysts and their decomposition efficiencies were analyzed with respect to pH, DOC and UV absorbances values for the HA solutions and compared one another. The experimental results showed that TiO2 particles(Degussa P-25) mixed with anataze and rutile gave the highest degradation efficiencies, respectively and much lower degradation efficiency in TiO2 paticles of rutile only type. In comparing among ST series of anataze types, it was observed that the degradation efficiencies generally were increased with increasing TiO2 contents and surface area of the particles. Higher degradation efficiency of HA was also found in zeolite type(D-TZ) of TiO2 paticles compared with hydroxyapatite type (D-TH) of TiO2 particles.

진해만 연안 퇴적물의 자성과 중금속에 대한 연구

문아윤,신경훈,석동우 한양대학교 이학기술연구소 2004 이학기술연구지 Vol.7 No.

진해만 두 정점의 자기특성과 대자율의 비교를 바탕으로 하여 중금속 농도 변화가 자화강도 변화에 미치는 영향을 있는지를 살펴보았다 이를 위해 깊이에 따른 중금속 농도 변화 (산화환원 환경) 그리고 유기물' 의 함량을 조사하였다 본 연구에서는 5가지의 중금속(Al, Fe, Cr, Ni, Mn)의 농도가 측정되었으며, 자화강도와 중금속의 농도 변화는 대체적으로 유사한 경향을 나타내었고, 산화환원환경에서 각각 중금속과 자화강도의 상관성이 다르게 나타났다. 산화환경에서는 반대되는 경향을 보이고, 환원환경에서는 비슷한 상관성을 나타낸다. 총유기물(TOM)과 대자율을 비교해 보면 두 정점의 유기물 농도가 다르게 나타나며, 산화환경에서 반대되는 경향성을 나타내고, 환원환경에서 비슷한 경향을 보인다. 이것은 산화환원 환경에 따라 유기물 함량과 중금속 의 존재형이 변화하므로 서로 연관성이 있다고 생각된다. The impact of heavy metal concentrations on magnetization compared to magnetic susceptibility is investigated by the measurements of heavy metals (redox change) and organic matter contents in the sediment core samples at two stations of the Jinhai Bay. In the present study, five heavy metals (Al, Fe, Cr, Ni, Mn) concentrations were determined, and indicated generally similar trends with the corresponding magnetization. The relationship between heavy metal concentration and magnetization depend on redox-environmental conditions, showing negative correlation under the oxidation environment and positive correlation under reduction environment, respectively. Comparing total organic matter content with magnetic susceptibility, organic matter contents at both stations are different, and showed a opposite trend against magnetic susceptibility in oxidation parts, and a similar pattern in reduction parts. These results demonstrate that both organic matter contents and heavy metal speciation are influenced by redox-condition.

Software License Integrated Solution

문석희;이혜경;진소형;김태공;서재현 인제대학교 2012 仁濟論叢 Vol.27 No.1

SLIS(Software License Integrated Solution) is composed of the 6 parts, Server Agent, Web Server, Client Agent, Client Manager, Service, and Install Shield. For the most part of the project is developed based on MFC platform except for the one, Client Manager, which is built on DDK(Driver Development Kit) and ASP.NET platform. Client Agent program installed on a customer's computer is implemented in 14 different classes. Its main function is able to limit and uninstall the purchased software by using teminateProcess. The purchased softwares expiration dates on customer's computer is being monitored by both Server agent and Client software itself. Client Manager hides the process of Client Agent program which shouldn't be killed by manipulating Process List in Kernel through DDK. To do this, Client Manager is internally implanted and registered in Windows Service to be ran as a part of windows system.

직장 네티즌들의 인터넷 여행사 이용실태에 관한 연구

차석빈,김종문,우경식 한국문화관광학회 2000 문화관광연구 Vol.2 No.1

The development of internet environment in the society caused the travel industry to proceed into the internet business competitively. However, a little research has been conducted on the netizens' behavior in the internet travel businesses. This study attempted to address the behavioral aspects related to the internet use for salaried men visiting internet travel agencies(ITA). Research findings are as follows: 1)Netizens seemed not to invest much time in searching travel-related sites. Major purposes of their visiting ITA were acquiring travel information, hotel/condominium reservation, package product reservation, etc. 2) They thought the provision of travel information, protection of private information, and internet connecting speed important in purchasing travel product through internet. 3) They revealed high intention to visit ITA, but low to purchase goods. However, netizens who had experience of purchasing goods show higher intention to visit or purchase than those who did not visit ITA even one time.

스포츠센터 회원의 생활양식, 참여종목과 참여 촉진 요인의 관계

김경호,주석범,박순문 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6

This study is to investigate the relations with the factors like life style, participation event, and participation promotion of the members at the sports center. For investigating that, as an object for research, this study is to select the adults above 20 years old who make use of the sports center in Ilsan area in 2003 as a population. Then it is to write the sampling frame work by using the stratified cluster random sampling. After that, it is to utilize the 360 persons except for the 40 sheets of questionnaire with double entry and insincerity and without the reliability in the real analysis after the distribution of the questionnaire. As survey instruments, it is to utilize the questionnaire that the Plumer(1974) developed and that Sim Jae Seung(1998) reconstructed in order to measure the life style. As for the factor of participation promotion, this study is to utilize the desire of leisure that Kim Young Ho(1995) adapted and developed the physical desire and efficiency variable in the development model for Korean-styled leisure diagnosis instruments, and utilize the reconstructed items as Kim Hong Sik(2002)'s factor of participation promotion that used after the Ryu Byeong Ryeol(1997) adapted the scale of recognized leisure capacity and the physical activity attitudes that produced by British Columbia Ministry of Health(1991). For the data analysis, the statistical analysis was executed as one-way analysis of variance, ANOVA, multiple regression analysis and ANCOVA. The conclusions from the data analysis according to the methods and procedures like above are as follows. First, there arose differences partly in the factors like the life style, participation event, and participation promotion according to the demographical characteristics. Second, as for the life style of the members at the sports center, it made affect on the factor of participation promotion partly. Third, there arose differences in the factor of participation promotion partly according to the participation event of the members at the sports center.

임신 40주와 출산 후 6주에 있는 20대 임산부 보행의 역학적 특성 비교

윤희중,문동안,정남주,금명숙,이경식,유실,김영란,한윤수 한국운동역학회 2000 한국운동역학회지 Vol.10 No.1

본 연구는 임신 40주와 출산후 6주간에 있는 임산부의 보행 동작의 특정을 규명함으로써 이와 관련된 연구자들에게 기초자료를 제공하고자 실시하였다. 이를 위해 임신 4주에 있는 임산부를 대상으로 1차 실험을 실시하였으며 동일한 대상자를 출산후 6주에 2차로 실험하여 자료를 수집하였다. 디지타이징 시 오차를 최소화하고 인체관절점의 분별을 위해 21개의 반사마커를 부착하였다. 10m의 보행주로를 걷는 동안 두 대의 비디오카메라를 이용하여60Hz로 자료를 수집하였으며 동시에 100Hz 지면반력자료를 수집하였다.수집되어진 자료는 DLT 방법을 사용하여 분석하였으며 이의 분석에 Kwon3d 프로그램을 활용하였다. 분석결과 다음과 같은 결론을 얻었다. 1. 임신 40주와 출산 후 6주의 보행 시 지지시간과 스윙시간의 비율이 다르게 나타났으며 보폭과 보간, 활보장은 임신 40주에서 더 큰 값을 보였다. 상체 전경각 역시 임신 40주에서 더 큰 값을 보였다. 힙관절, 무릎관절, 발목관절각도는 S1이 출산후 6주에서 큰 값을 보인반면 S2는 출산전후에 큰 변화를 보이지 않다. 2. 상하지면반력의 경우 FP1과 FP2는 임신 40주보다는 출산 6주에서 큰값을 보였지만 FP3는 임신 40주에서 보다 큰값을 보이고 있었다. 전후지면반력의 경우 출산전과 후 모두 Fy2에서 보다 큰 값을 보이고 있었다. This Study was to investigate kinematical characteristic comparison of the gait pregnant 40weeks and after delivery 6weeks 20´s women and provide the basic data. To accomplish this study, in the first, carry out an experiment with the pregnant women in the pregnant 40weeks on the videotape, and than the second, make an experiment with the kinematic data. Kinematic data were filtered with a low-pass, fourth-order Butterworth filter with an effective cut off frequency of 6Hz. The conclusions were drawn as follows; 1. Floor contact Periods(stance and swing rate) were differed from before and after the delivery and a pregnant 40 weeks was greater than after delivery 6 weeks in the step, width, stride. Also, a pregnant 40 weeks was greater than after delivery 6 weeks in the front angular. And the other angular components were represented similar pattern. 2. In the vertical load, delivery 6 weeks was grater than a pregnant 40 weeks in the FP1(first peak) and FP2(valley). And FP3(second peak)was represent that a pregnant 40 weeks was greater than delivery 6 weeks. Also, in the horizontal shear, Fy2(progressional force)was greater than Fy1(breaking force) about time of the delivery.

수중운동이 여성 노인의 건강관련 체력 및 균형능력에 미치는 영향

문경숙(Mun, Kyung-Suk),박정민(Park, Jeong-Min),류상균(Ryu, Sang-Kyun),차준열(Cha, Jun-Youl),현광석(Hyun, Kwang-Suk) 한국사회체육학회 2016 한국사회체육학회지 Vol.0 No.65

This study was to investigate the effects of aquatic exercise no elderly women’s body composition, physical fitness, and static and dynamic balance abilities in the elderly who were over 65 years old. The participants were divided into two groups: Aquatic exercise group (AEG, n=20) and Control group (CG, n=20). The AEG took part in the aquatic exercise program for 12 weeks. The results of this study were as follows: First, there were significantly decreased in body weight, body mass index, waist hip ratio, and percent fat in AEG compared with CG after 12 weeks. Second, there were significantly increased in muscular strength, muscular endurance, flexibility, and agility in AEG compared with CG after 12 weeks. Third, with respect to the change"s of balancing abilities after aquatic exercise program, the AEG demonstrated the significant enhancement in standing on one leg test with eyes closed, which was a static balance test, in both feet. Moreover, the dynamic balance scores from up, up-right, right, down-right, down-left, left, and up-left orientations including to the overall-scores gained from seven orientations were significantly increased in AEG compared to CG after 1 2 weeks. As conclusions, this study confirmed that the aquatic exercise program could improve the body composition, physical fitness and balance abilities of female elderly.

정상 면역에서 발생한 거대세포바이러스 대장염 1 예

김경희,이종훈,김무현,박태호,한상영,송경하,신우원,노명환,장진석,문성훈,장세준,최석렬,노미숙 대한내과학회 2002 대한내과학회지 Vol.62 No.2

Cytomegalovirus (CMV) infection is more frequent in immunocompromised patients those with acquired immunodeficiency syndrome (AIDS), malignant disease, steroid therapy. However, CMV can infect a healthy person who has normal immunity. Most cases of CMV infections are due to reactivation of latent virus. We report a case of cytomegalovirus colitis in a 73 years old woman who has congestive heart failure with normal immunity. Sigmidoscopy reveals cobble stone like mucosa and deep ulceration. CMV infection produces a cytomegalic cell containing a intranuclear inclusion, which is surrounded by clear halo in Hematoxylin-Eosin stain. Immunohistochemical stain for CMV reveals focal positive in cytoplasm and in nuclei of large cells. We diagnosed CMV colitis with histopathologic finding and immunohistochemistry through sigmoidoscopic mucosal biopsy.(Korean J Med 62:218-222, 2002)

감각신경성 난청의 예후 인자에 대한 평가와 침구 치료에 대한 임상적 고찰

문경숙 ( Kyung Suk Mun ),이소열 ( So Yol Lee ),권오섭 ( O Seop Kwon ),장조웅 ( Jo Ung Jang ),권혁성 ( Hyuk Seong Kwon ),윤대환 ( Dae Hwan Youn ) 대한경락경혈학회 2006 Korean Journal of Acupuncture Vol.23 No.4

Objectives: The purpose of this study was clinical observation about sensorineural hearing Loss compare with acupucture treatment and assessments of prognotic factors. Methods: This study was clinical observation about sensorineural hearing Loss cases. For diagnosing in these cases, pure tone audiometry was used. The treatment, acupuncture was used. Results: Three patients(37.5%) remarkably improved, one patient(12.5%), slightly improved, four patients(50%), no change. Conclusions: These results suggest that the prognosis by age and initial hearing threshold was significant. The treatment on sensorineural hearing Loss considered that bone condution improved.

Dynamical Structure of NGC 4486

Park, Kyung-Suk,Chum, Mun-Suk 한국우주과학회 1987 Journal of Astronomy and Space Sciences Vol.4 No.1