경춘선 숲길 이용 만족도에 영향을 미치는 요인 분석 연구 - 공원의 안전성, 접근성, 쾌적성 중심으로 -

박세연(Park, Se-Yeon),황성은(Hwang, Sung Eun),최병윤(Choi, Byeong-Yun),강부성(Kang, Boo-Seong) 대한건축학회 2023 대한건축학회 학술발표대회 논문집 Vol.43 No.2

The purpose of this study was to analyze the factors affecting satisfaction of the park by selecting Gyeongchun Line Forest Park as the target site to relieve the inconvenience of people using a park. As the number of park users increased after COVID-19, complaints about using the park also increased. Through the survery the factors affecting satisfaction were identified by dividing them into categories of saftey, accessibility, and comfort and do an on-site investigation. In order to increase the safisfaction of the park, lighting and visual connection were important in terms of saftey, accessibility and guidance width and movement speed were importatnt in comfort.

대학 영어에 있어서 영어연극의 적용과 성과

박연성 ( Yeon Seong Park ) 21세기영어영문학회 2004 영어영문학21 Vol.17 No.1

Drama Project in the EFL Classroom, its Application and Result Park, Yeon-Seong(Chonnam National University) This is an action research revolving around a drama project in the conversational English and writing class in Chonnam National University from 2001 to 2003. I started to use drama presentations as a midterm assessment in the spring of 2001. The students' response was immediate and they prepared drama presentations with enthusiasm, which had been hard for me to observe in regular English classes. With this to bolster my confidence, I used drama presentations in every semester from 2001 to 2004. I found that drama gives ample opportunities to practice English both inside and outside of classroom. It makes classrooms interactive and interesting. More than anything else, it builds strong cohesion between the members of the class. There are some prerequisite in order to achieve these merits. First it is necessary to give students an ample amount of time to plan their presentation. Students work harder when they will receive a grade for their presentation. Class size is important to enable all the students to complete their performances within the alloted time. I believe that EFL classrooms will become more interesting and interactive if drama is integrated into curriculum.

칼라영상을 위한 그레이 스케일 로고 영상 워터마킹

박성용,정용덕,임수연,김정화 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.1

This paper is a method to maintain the right of possesion for color images. previous method used an binary data, image, or binary pattern etc. So watermarked image was declined in image quality. But the information for insertion was limited. This paper proposed the method which will change RGB mode of original image to YIQ, at first, we will insert the watermark in the Low frequency cofficient of wavelet transform domain. The watermark use the owner's photo of a digital contents. which is 256 gray-level watermark, and it's size can be changed by the size of original image. As the result of simulation, our method can provide the rightful1 ownership against Rotation, Cropping, JPEG, and Scaling attacks.

조선업 근로자의 목부위 자각증상의 유병률과 관련 요인

박종,김기순,강명근,류소연,이철갑,강성득,김철호 朝鮮大學校 附設 醫學硏究所 2004 The Medical Journal of Chosun University Vol.29 No.1

Background and Objectives : This study examined prevalence and related factors of musculoskeletal symptoms on area of necks of shipbuilding workers in order to prevent musculoskeletal disorder and find out its managerial plans. Materials and Methods : this study targeted 1, 159 male shipbuilding workers who work for large suipbuilding companies, and interviewed them using organized questionnaire having short answer questions in February, 2003. Results: The prevalence of musculoskeletal symptoms (pains, anesthesia, and numbness) of the subjects was 16.0% on necks. As a result of multiple logistic regression analysis, the following results were obtained : sleeping hours, working departments, extra working hours, perceived amount of working, availability of dispensary were significantly related with symptoms on neck. When the variables that had significant relation with prevalence of neck area symptoms were analysed health behavior, it was found that the odds ratio of the group who had more than sufficient sleeping hours was 1.70 times higher than that of the group who had not. When they were examined in terms of occupational characteristics, the odds ratio of the subcontract company workers was 0.44 times lower than that of the parent company workers, and that of the group who had two hours of extra working hours was 1.78 times higher than that of the group who did not. The odds ratio of the group who thought the perceived working amount was slightly over the proper level was 1.49 time higher, and that of the group who thought it was excessively over the proper level was 3.21 times significantly higher. The odds ratio of the group who thought availability of dispensary was moderate was 1.84 times significantly higher than that of the group who thought it was easy. Conclusion : It was found that 16.0% of shipbuilding workers had musculoskeletal symptoms on neck, and their deom-sociological, occupational, and socio-psychological characteristics affected the symptoms. Therefore, to decrease musculoskeletal symptoms of shipbuilding workers, wording and socio-psychological condition should be improved by considering related factors of the workers.

Protein microarray를 이용한 Apin-단백질의 상호작용에 관한 연구

박주철,박선화,김흥중,박종태,윤성호,김지웅,이태연,손호현 대한치과보존학회 2007 Restorative Dentistry & Endodontics Vol.32 No.5

Helium-Oxygen Plasma 조사에 의한 방사능 저항 미생물 Deinococcus radiodurans 살균

박연희,김성미,김종일 서울여자대학교 자연과학연구소 2006 자연과학연구논문집 Vol.18 No.-

다양한 살균법이 있지만 열에 약한 물질을 살균 처리하는 방법으로는 여러 문제점을 지닌 ethylene oxide(EtO) gas를 이용한 것이 주로 쓰이고 있는 실정이다. 플라즈마를 이용한 살균법은 EtO 살균법의 단점을 보완해 주는 대체 기술로 제시되고 있는데 플라즈마 조사에 대한 미생물의 생존을 UV 조사와 비교 분석하였다. 플라즈마에 직접 노출된 Deinococcus radiodurans는 조사 시간의 증가에 따라 colony 형성능력이 크게 감소하였으며, UV 조사에 의한 사멸보다 더 효과적으로 작용하였다. 또한 세균에 플라즈마를 쪼여 준 후 생체 내 효소와 세포 사멸에 관계가 많은 산소 활성종의 양이 증가하여 세포 사멸에 큰 영향을 준다고 사료된다. There are various methods for sterilization but the heat-sensitive materials are sterilized usually by ethylene oxide gas, which has several problems. Plasma sterilization method could replace the sterilization with ethylene oxide gas. The use of plasma for sterilization has been analyzed in this study. The extents of surving colonies imparted by plasma exposure for the increasing time were assessed. The killing effect by plasma was exhibited to be much higher than those by exposure to UV. Irradiation of plasma to the cells was the cause of the breakdown of biopolymer via action of reactive oxygen species, which could result in the cell death.

주물사업장에서 발생하는 호흡성분진의 농도 및 석영함유량에 관한 연구

박용선,노영만,김현욱,한진구,안연순,강성규,김정만 한국산업위생학회 2003 한국산업보건학회지 Vol.13 No.1

This study was performed to measure and evaluate the concentration of respirable dust and quartz content at molding and shakeout process in the foundry. The 129 samples in 30 foundries were collected using 10mm Dorr-Oliver nylon cyclone and analysed for quartz concent by Fourier Transform Infrared Spectroscopy. The average quartz concentrations in the respirable dust was 0.0273mg/㎡ and ranged from 0.0007 to 0.3757mg/㎥. The average quartz concentrations of shakeout process wsa significantly higher than that of molding in the foundry. The average of respirable dust in foundry 102129mg/㎡ and ranged from 0.1524 to 7.0428mg/㎥. But there is no significant difference between molding and shakeout processes. The average contents of quartz for OEL-MOL was 2025% and ranged from 0.05 to 32.79% The non-compliance rates for quartz were 22.96% in Korea-OEL and 34.01% in ACGIH-TLV and NIOSH-REL, and 35.03% in OSHA-PEL. The airbome dust in the foundry was effectively controlled when local exhaust ventilation and/or wetting system were operated. The result of this study therefore showed that the engineering controls and periodic environmental suveillance in foundry will be very important for preventing the health effects of workers exposed to quartz.

대장균에서 재조합 Rat Guanine deaminase 유전자의 발현, 정제 및 분석

성연선,곽상준,박대성,김향원,이희영 단국대학교 1998 論文集 Vol.33 No.-

Guanine deaminase(EC, 3.5.4.3, ;Guanine aminohydrolase, GAH, GDA) catalyzes the deamination reaction of guanine to xanthine irreversibly. The cDNA encoding rat guanine deaminase had been isolated from a λZAPII rat brain expression library using antibody generated against purified rat guanine deaminase. Toe obtain recombinant GDA and analyze the property of catalytically conserved retion, here we expressed the recombinant GDA in E.coli and showed the retention of its catalytic activity similar to native rat GDA. To make the construct carrying coding region to GDA in pGEX4T prokaryotic expression vector, the region encompassing open reading frame of pBlue-GDA was PCR amplified and subcloned into pGEX4T prokaryotic expression vector with correct reading frame of fusion carrier glutathione S-transferase. After transformation to E.coli DH5a. The bacteria carrying pGEX-GDA was grwon in the condition of IPTG induction. The fusion protein GST-GDA was purified with GSH-sepharose affinity chromatography. The purified GST-GDA was subsequently digested with biotin-conjugated thrombin, and thrombin was removed by streptavidin agarose. Then sample were treated with GSH-sepharose affinity chromatography to remove the contaminant GST and GST-GDA. The purified recombinant GDA showed 70% of specific activity relative to that of purified rat GDA. The recombinant GDA showed identical molecular weight with rat GDA in SDS-PAGE.

초등학교 화단에 대한 교사들의 인식과 운영실태에 관한 연구

김오성,정연옥,박중춘 韓國植物ㆍ人間ㆍ環境學會 2001 인간식물환경학회지 Vol.4 No.3

The purpose of this study was to provide basic data for inquiring effective use of school garden by researching the recognition and practical management on school garden of elementary school teachers. The teachers recognized that school garden was contributing to students' emotional cultivation, cultural learning and feeling on importance of life. The more teaching career recognized that school garden was a great help to students on learning attitude. The teachers recognized that the garden structure and plants, planting design were in harmony. Teachers have more than 31 teaching years recognized that they knew kinds of plants in school garden well. The more teaching career were more interest in practical classes in school garden. When panting trees or flowers in a school garden, teachers thought their opinions were considered well. Especially female teachers in thirties and having teaching career between 11 years and 20 years recognized that acceptance degree of their opinions was very high. Most of teachers recognized that they knew considerably the name of plants in school garden, especially female teacher and the lower career teacher were so.

Chlorpromazine이 백서 해마에서 전기경련 충격에 의한 MAPK 타이로신 인산화에 미치는 영향

주연호,정성훈,전송희,강웅구,김용식,김상욱,박주배 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.2

Object : In order to examine the interaction mechanisms of electroconvulsive shock(ECS) and antipsychotic drug at the level of molecular biology, we observed the effect of chlorpromazine pre-treatment on the activation of mitogen activated protein kinase(MAPK) induced by electroconvulsive shock(ECS) in rat hippocampus Method : Male Sprague-Dawley rats were divided into 2 groups. To the experimental group chlorpromazine(20㎎/㎏) was given intraperitoneally, and to the control distilled water was given instead. Thirty minutes later, ECS was given and the hippocampus was dissected out 2 minutes thereafter. Immunoblotting with antiphosphotyrosine antibody was carried out, and the signal intensity at 42kDa band was quantitized using densitometer. The obtained result was compared by student t-test between the experimental and the control group. The absolute amount of MAPK was measured by immunoblotting with anti-MAPK antibody. Result : The tyrosine phosphorylation of MAPK reached peak at 2 minutes after ECS. However, in the chlorpromazine pre-treated group, the peak level of MAPK tyrosine phosphorylation was significantly attenuated(t=-3.12, df=14, p=0.008) compared to the control. In contrast to this, the absolute amount of MAPK did not differ between the pretreated and the control group. Conclusion : Chlorpromazine attenuated the tyrosine phosphorylation of MAPK by ECS. This finding seems to be related to the fact that chlorpromazine pre-treatment changed the cfos expression by ECS in rat brain. Antipsychotic drug and ECS might interact at the level of MAPK signal transduction system, and this might explained the observed synergistic effect of two treatment modality.