배리어프리(Barrier-Free) 영화 활성화 방안

최영환(Choi, Youngwhan),신주연(Shin, Juyeon),염은유(Yeom, Eunryu),오강국(Oh, Ganggook),오세은(Oh, Seeun),윤혜정(Youn, Hyejeong),정현지(Jeong, Hyunjee),최윤경(Choi, Younkyoung),한지나(Han, Jina),홍소망(Hong, Somang),조성희(Cho, Sunghu 한국상담복지경영학회 2019 상담복지경영연구 Vol.- No.3

본 연구는 장애인의 삶의 질과 밀접한 관련성을 가진 문화향유권을 증진하기 위한 방안을 살펴보기 위한 목적으로 수행되었다. 특히 다양한 문화활동 중 장애인들이 가장 많이 이용하고 있는 활동인 영화 관람에 초점을 맞추었다. 이를 위하여 국내외 배리어프리 영화의 실태와 제도를 살펴보았다. 또한 배리어프리 영화 상영 경험에 따른 배리어프리 영화에 대한 수용도와 장애인에 대한 인식 변화를 검증하였다. 추가적으로 관련 전문가들을 대상으로 인터뷰를 통해 배리어프리 영화의 실태와 활성화 방안을 모색하였다. 연구결과를 살펴보면, 국내의 배리어프리 영화는 2010년대 이후 발전해 오고 있으나, 여전히 장애인들의 문화 활동에 대한 욕구를 충족시키기에는 미흡한 수준이다. 특히 배리어프리 영화의 절대적인 양적 측면의 성장이 미흡한 상황이므로 이에 대한 대책이 필요하다. 국내 배리어프리 영화의 확대를 위한 방안 모색에 있어서 영국은 좋은 사례가 될 수 있으므로 이에 대한 추가적인 검토가 필요하다. 배리어프리 영화 경험에 따른 배리어프리 영화에 대한 수용도와 장애인에 대한 인식 변화를 살펴본 결과에서는 배리어프리 영화를 경험한 경우 배리어프리 영화에 대한 수용도가 증가하고, 장애인에 대한 인식 역시 개선되는 것으로 나타났다. 이러한 결과를 기반으로 하여 배리어프리 영화 경험 증대를 위한 기회 확대, 기업차원이 활성화 방안 추진, 제도의 개선을 제시하였다. The purpose of this study was to find measures to promote cultural rights that are closely related to the quality of life of people with disabilities. In particular, the focus was on movies, which are the most used films for people with disabilities in various cultural activities. We examined the actual conditions and systems of barrier-free films at home and abroad. Also, according to the barrier-free movie screening experience, we examined the change of acceptance of barrier-free movie and perception of disabled people. Additionally, interviews were conducted with relevant experts to find out the status of barrier-free films and how to activate them. Result shows that barrier-free films in Korea have evolved since the 2010s, but are still insufficient to meet the needs of disabled people for their cultural activities. In particular, since the absolute quantitative growth of barrier-free movies is not enough, measures need to be taken. The UK can be a good example of exploring ways to expand domestic barrier-free films, and additional consideration is needed. As a result of examining barrier-free film acceptance and recognition of disabled people according to barrier-free film experience, the barrier-free film experience showed that acceptance of barrier-free film increased and recognition of disabled people also improved. On the basis of results, this study suggested the expansion of opportunities to increase the barrier-free movie experience, the promotion of corporate-level activation, and the improvement of the system.

포름알데히드 위해성 저감에 관한 연구

김영환(YoungWhan Kim),최달웅(DalWoong Choi) 고려대학교 보건과학연구소 2005 보건과학논집 Vol.31 No.2

  Mutiple chemical sensitivity (MCS) is a disease of complex etiology involving the central nervous system (CNS), respiratory and skin disorder. MCS symptoms reported by occupants of new or renewal buildings, termed the sick building syndrome (SBS) include irritation of the eyes, nose and throat, headache, nervousness and respiratory distress. Form??aldehyde (HCHO) is a toxic and irritant indoor air pollutant found at relatively high concentrations in new house, schools and offices in developed countries. Exposure to HCHO elicits a variety of allergic signs and symptoms and irritates the upper respiratory tract. According to the guidelines for indoor air environment proposed by World Health Organi??zation (WHO) and the Ministry of Health, Labor and Welfare, Japan, the average level of HCHO in homes should be less than 0.08 ppm. However, the level of HCHO exceeds 0.08 ppm in many new or recently renewal buildings. The prevention and counterplan of the HCHO"s harm??fulness should be deal with urgently. Therefore, we explored the ability of charcoal to absorb and remove HCHO gas emitted from closed environments. Constant HCHO concentrations were maintained in artificial chamber for 2 days. The concentration of HCHO in the chamber was measured using 2,4-dinitrophenylhydrazine cartridge. Charcoal effectively eliminated HCHO in the chamber and decreased HCHO-induced toxicity in mice. This effect of charcoal persisted for 2 days. Present study suggests that charcoal can be used to prevent MCS.

Magnetic resonance imaging characteristics of ischemic brain infarction over time in a canine stroke model

Sooyoung Choi,노다지,Youngwhan Kim,In-Seong Jeong,최호정,이영원,Ki-Ja Lee 대한수의학회 2018 Journal of Veterinary Science Vol.19 No.1

This study describes magnetic resonance imaging (MRI) results and changes in lateral ventricular size over time in a canine ischemic stroke model. T1- and T2-weighted (T1W, T2W) imaging and fluid-attenuated inversion recovery (FLAIR) sequence MRI were performed at 3 h and 3, 8, and 35 days after brain infarct induction. Diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC) mapping were performed at 8 and 35 days. A total of 29 brain lesions were induced successfully in 12 of 14 beagle dogs. At 3 h, T2W and FLAIR detected hyperintense lesions in three randomly selected dogs. On T1W, all lesions appeared hypointense to isointense at 3 h, isointense (18/29) or hypointense (11/29) at 3 days, hypointense to isointense with peripheral hyperintensity (24/26) at 8 days, and hypointense (18/26) at 35 days. Infarcts on DWI/ADC were hypointense to isointense centrally, with the periphery hyperintense/hyperintense (17/26) at 8 days and hypointense/hyperintense (19/26) at 35 days. A marked increase in lateral ventricular size was observed in dogs with cerebral infarcts. In conclusion, T2W and FLAIR were useful for detecting early stage (3 h to 3 days) brain infarction. T1W and DWI were useful for detecting neuronal necrosis and providing supplemental information for phase evaluation.

한국과 일본 초등학생의 체육교과 선호도, 영역별 선호도, 방과 후 놀이 선호도 및 운동의 즐거움 요인 비교 연구

서영환(Youngwhan Seo),남윤신(Younshin Nam),최태희(Taehee Choi),靑柳領(Osamu Aoyagi),池田孝博(Takahiro Ikeda),한남익(Namik Han) 한국발육발달학회 2017 한국발육발달학회지 Vol.25 No.2

The purpose of this study was to investigate the preference of physical education contents, afterschool play and factors of physical pleasure derived from physical activity in Korea and Japan elementary students. The results of this study are as followed. Firstly, Japan subjects showed significantly high preference than that of the Korea subjects. Korea physical education showed significantly high than that of the other subject. Japan physical education, practical subject and arts subject showed significantly high than that of the other subject. Secondly, Japanese physical education contents showed significantly high preference than that of the Korean physical education contents. Japanese male students showed significantly high than that of the korean male students, Japanese female students and korean female student. Japanese T&F showed significantly high preference than that of the Japanese gymnastics, korean ball game, Japanese swimming, korean T&F, korean gymnastics, korean swimming. Third, It became clear that the gender and a after-school play factor have an influence on the preference of after-school play. Japanese of the preference of after school play showed significantly high than that of the korean. Japanese male students showed significantly high preference than that of korean male students, Japanese female students and korean female student. Lastly, It became clear that the gender and factor of PPA have an influence on the preference of PPA. PPA of Japanese showed significantly high than that of the korean PPA. Japanese male students showed significantly high preference than that of Japanese female students and korean female student.

에어로졸 3D 나노프린팅을 통한 각도 분해 편광 센싱

양영환(Youngwhan Yang),정우익(Wooik Jung),허창녕(Changnyeong Hur),김홍윤(Hongyoon Kim),신주연(Jooyeon Shin),최만수(Mansoo Choi),노준석(Junsuk Rho) 대한기계학회 2024 대한기계학회 춘추학술대회 Vol.2024 No.6

활성산소와 휘발성유기화합물류에 대한 노출이 세포 증식에 미치는 영향에 대한 연구

김영환(YoungWhan Kim),최달웅(DalWoong Choi) 고려대학교 보건과학연구소 2006 보건과학논집 Vol.32 No.1

  Oxidative stress is easily induced by volatile organic compounds. The adverse health effects of a number of environment pollutions are related to the formation of free radicals and oxidative stress. Induction of antioxidant defensive system in the response to an oxidative attack is an essential element of the organism to survive. Oxidative stress includes formation of hydrogen peroxide. Volatile organic compounds are constituents of numerous industrial and commercial products such as solvents, paints and unleaded gasoline. Their high toxic potential and liposolubility make these compounds important health hazards. The aim of the present study was to investigate the effect of reactive oxygen species and volatile organic compounds on the cell proliferation. Cell proliferation was measured after 24h treatment with volatile organic compounds such as benzene, xylene, chloroform, propanol, hexane or tetrachloroethylene. The cell proliferation was not modified after exposure of benzene(100 mM), propanol(100 mM) or hexane (100 mM). Treatment of xylene(100 mM), chloroform(100 mM) and tetrachloro-ethylene(100 mM) strongly inhibited the cell proliferation. However, treatment of 10 mM xylene, 10mM chloroform and 10mM tetrachloroethylene showed no effects on cell proliferation. Cell proliferation was also measured after 24 h co-exposure of volatile organic compounds and hydrogen peroxide. Addition of hydrogen peroxide did not modify the cell proliferation pattern induced by volatile organic compounds. Any additive effect of hydrogen peroxide was not observed. These results show that volatile organic compounds induce inhibition of cell proliferation with different potency. Future studies will concentrate on the mechanism of the chemical interaction.

The v2.0+EDR Bluetooth SOC architecture for multimedia

Kim, Jeonghun,Choi, Youngwhan,Jeong, Jungwon,Lee, Suhho,Kim, Suki IEEE 2006 IEEE TRANSACTIONS ON CONSUMER ELECTRONICS - Vol.52 No.2

This paper presents a Bluetooth system on chip (SOC) architecture for multimedia applications. The SOC includes all necessary baseband-parts, RF-parts, a sub-band codec (SBC) and an application processor to achieve a Bluetooth specification v2.0+EDR (enhanced data rate). Dual bus architecture is selected to improve data transmission efficiency between a baseband and a system bus. The receiver uses an optimized low-IF (1.5 MHz) architecture which is trade-off between power and performance on CMOS technology. The transmitter uses a direct up conversion architecture. This chip occupies a die size of 28 mm<SUP>2</SUP> in a 0.18 μm CMOS. This chip and a flash memory are put into multi chip package (MCP). The maximum current consumption of the total chip is 65 mA at the TX mode. The internal supply voltages of RF- and digital-parts are 1.8 V. First measurement results meet most of the Bluetooth specification v2.Q+EDR and show the suitability of the presented single-chip concept.

전동차 자동열차정지장치와 지상신호설비 간의 전자파 간섭

최규형(Kyuhyoung Choi),윤선호(Sunho Yoon),고영환(Youngwhan Kho) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4

The ATS(Automatic Train Stop) system have only a train stop function at the time of emergency, and Seoul Metro is planning to replaced them with ATC(Automatic Train Control)/ATO(Automatic Train Operation) system which can provide dedicated train speed control for headway reduction and unmanned operation of train. Until all the ATS system is replaced with the new ATC system, both systems are to operate simultaneously at the same metro line. In this situation, ATS system sometimes reveals improper operation: train stops suddenly without any obstacles in front of it. These improper stop cause interruption of passenger service. The authors make it clear that these interruptions are caused by EMI phenomena between ATS on-board device and track circuit of ATC system: Signal current flowing in the track circuit is turn out to be a EMI source that prevent the ATS on-board device from normal operation. This is investigated by frequency spectrum analysis of signaling currents and frequency response of ATS on-board device analyzed by FFT(Fast Fourier Transform). The analysis shows that ATS on-board device has a frequency response covering the frequency of signaling current flowing in the track circuit. Although the two systems have different frequency range. The countermeasures to prevent these EMI phenomena are suggested in two ways. One is elimination of EMI source: blocking the signaling current of track circuit when ATS-mounted train pass. Dedicated device for automatic blocking of signaling current is developed and installed at the site. The other is enforcement of EMS(Electromagnetic Susceptibility) : setting a high-pass filter to the circuit of ATS on-board device. These measures make a success in preventing the EMI problem of Seoul Metro line 2.

새집증후군 및 알레르기 환자 가정의 실내 공기 중 폼알데하이드 농도 조사

문경환(KyongWhan Moon),김영환(YoungWhan Kim),변상훈(SangHoon Byeon),최달웅(DalWoong Choi),권오성(OSung Kwon),이장희(JangHee Lee) 고려대학교 보건과학연구소 2005 보건과학논집 Vol.31 No.1

  The significance of formaldehyde as an indoor air pollutant is well established. Formaldehyde is highly irritating to the eyes and upper respiratory tract at low level. Recently, attention has been paid to formaldehyde as an allergen that enhances allergic sensitization. The number of patients of allergy and asthma are gradually increasing in Korea. In this study we investigated the effect of formaldehyde affecting to the patients of new syndrome, allergy and asthma in their residnece houses.<BR>  Method detection limits for the procedure was 0.4㎍/L. Precision for the colocated sample showed 4.1% and accuracy spiked recovery was 101.6%.<BR>  Concentrations of indoor air formaldehyde in patients" homes of allergy and new house syndrome were high compared to non-patients" houses (p < 0.05). But no significant differences could be shown for the concentration of formaldehyde in indoor air between the homes of asthma patients and healthy families.

토마토(Solanum lycopersicum L.) 품종 간 수용성 비타민과 폴리페놀계 성분 함량 변이 분석

Daen Kim,Beunggu Son,Youngwhan Choi,Jumsoon Kang,Yongjae Lee,Beungil Je,Younghoon Park (사)한국식물생명공학회 2020 JOURNAL OF PLANT BIOTECHNOLOGY Vol.47 No.1

Tomato fruit quality is determined by the contents of various functional metabolites in addition to fruit appearance. To develop tomato cultivars with higher amounts of functional compounds, an efficient quantification method is required to identify the natural variations in the compounds in the tomato germplasm. In this study, we investigated tomato varieties, which included 23 inbred lines and 12 commercial F1 cultivars, for their contents of seven watersoluble vitamins (vitamin C, vitamins B1, B2, B3, B5, B6, and B9) and five polyphenolic compounds (quercetin, rutin, kaempferol, myricetin, and naringenin chalcone). The results of high performance liquid chromatography and liquid chromatography- mass spectrometry showed that vitamin C and naringenin chalcone were the major water-soluble vitamins and polyphenolic compounds, respectively, and their abundance was highly variable depending on the cultivar. By contrast, the contents of vitamin B1, quercetin, and kaempferol were lowest among the cultivars. With regard to the relationship between metabolic compounds and fruit characteristics, a significant association was found in fruit size, indicating that cherry tomato varieties contain higher amounts of the compounds compared to large fresh-type varieties. However, no direct association was detected in fruit color, except for naringenin chalcone. The results of this study provide new insights on the quantification of metabolic compounds and the selection of breeding materials, which are prerequisites for the development of functional tomato varieties.