1970년대에 등장해 진중하면서도 탁월한 마티에르가 강조된 추상회화를 보여준 권훈칠은 1980년대 후반 갑작스레 이탈리아 유학을 떠난다. 이탈리아 유학 동안에 그는 기존에 꾸준히 천 착해오던 스승 정창섭의 추상화에서 보여지던 마티에르를 강조하는 방식을 버리고 평소 개인적 으로 관심을 갖던 풍경화에 몰두한다. 풍경화는 그가 이탈리아에 오기 이전부터 꾸준히 그려오던 장르였다. 권훈칠의 이러한 풍경 중심의 화풍은 그가 로마에 유학하던 당시 영향받았던 오토첸 토, 즉 이탈리아의 19세기 회화와 연관이 있다. 당시 이탈리아는 통일운동으로 점철된 시대였고 조국의 땅과 풍경을 화폭에 담고자했던 이탈리아의 화가들을 마키아이올리(Macchiaioli)라고 불렀다. 이탈리아 토스카나, 그리고 피렌체에서 출발한 이들은 겉으로 보기에는 프랑스의 인상파 운동과 매우 비슷한 화풍을 지녔으나 다루는 주제, 애국심, 그리고 전통적인 르네상스 회화적 구 도 등을 활용하는 새로운 화파였다. 권훈칠이 이들에게 영향을 받아 한국의 풍경을 그린 수채화 들은 정적인 공간과 개인의 안식, 그리고 내 나라, 내 땅에 대한 애정을 보여주는 작품들이었다. 논문은 권훈칠의 풍경화에 나타나는 이탈리아 마티아이올리의 영향을 추적하며 그의 풍경화가 드러내는 의미를 고찰하고 있다.

PURPOSES : The purpose of this study is to understand the effect of installing highway rest areas reflecting continuous driving time as a factor that can affect drowsy driving. METHODS : In this study, various models were tested for representing the effect of reducing accidents of highway rest areas. Among the various models including negative binomial, a series of the zero-inflated models reflecting accidents, the zero-inflated model showed the best suitability. RESULTS : According to the results of the zero inflated negative binomial model, installation of highway rest areas was found to have an accident reduction effect of approximately 11.93%. This is somewhat lower than the accident reduction effect estimated in previous studies. In addition, variables related to continuous driving time were found to affect accidents caused by drowsy driving. CONCLUSIONS : Basically, by using the continuous driving time index, a vehicle that has been driving continuously for more than 2 hours or if the continuous driving time is increased for more than 2 hours, the probability of accidents increases. However, in the case of trucks, a more in-depth study is needed on whether an increase in trucks induces defensive driving of other vehicles and this causes a reduction in accidents. Thus, it is necessary to use the variable cautiously for the highway rest area installation plan.

This study investigated 180 students’ indoor environmental awareness of rest spaces and measured the indoor and outdoor concentrations of PM10, TVOCs, and HCHO in 8 rest spaces from October 2019. 89.4% of the students responded that they use rest spaces at least once a day and most of the respondents are using rest spaces in the university. The largest number of students responded to the tight space as the main cause of air pollution in rest spaces. 62.1% of the students answered they experienced health symptoms from using rest spaces. Among them, 32.5% said they experienced irritation symptoms of eyes, neck, nose, and 12.1% answered that they experienced headaches. Indoor PM10, TVOCs, and HCHO levels did not exceed indoor air quality recommendations nor the maintenance standard for multi-use facilities. Indoor PM10, TVOCs, and HCHO levels did not exceed indoor air quality recommendations nor the maintenance standard for multi-use facilities. According to the type of rest space, concentrations of PM10, TVOCs, and HCHO were higher among the closed-type than open-type rest space. Even if the concentration of pollutants is less than the environmental standard, continuous exposure may cause negative health effects. In addition, considering that 62.1% of the respondents experienced health symptoms, it is deemed necessary to take measures to manage indoor environments in rest spaces and to develop measures to reduce pollutants.

PURPOSES : In this study, the installation of drowsy rest areas and accidents are analyzed. The factors that affected the accidents caused by drowsy drivers in rest areas are analyzed to improve the safety of rest areas. METHODS : By comparing and analyzing the installation status of the rest areas for drowsy drivers, the accident status were analyzed. The logistic regression model was used to analyze the factors that affect accidents in the drowsy rest area. RESULTS : Most rest areas were installed below the installation criteria. Several accidents occurred when the vehicle entered the drowsy rest area. These rest areas had a short entry ramp, and no safety facilities were installed. The logistic regression model showed that the risk of an accident is lowered when the deceleration lane is longer than 215 m. Additionally, the risk of an accident is lowered when the rest area is installed in the straight section or the curve section, wherein the curve radius is greater than 2 km. CONCLUSIONS : In this study, we evaluated the installation status of the rest areas for drowsy drivers by comparing installation elements. Most rest areas for drowsy drivers were installed at different lengths of the ramp. Some of these were installed on the slope or curved sections of the road. We analyzed the accident status and developed an accident modal using the logistic regression model to identify the factors that affect accidents. It will be necessary to analyze accidents in drowsy rest areas continuously to improve safety for drowsy drivers.

Rest area is a space providing opportunities to use a restroom, refuel, reduce fatigue and receive mechanical maintenance services. In Korea, entering rate to rest area from mainline traffic and duration time in rest area are the key variables in the determination of size of rest area. However, there are many controversies because of inconsistency of those variables between rest areas. Moreover, cases that parking space of newly opened rest area are heavily congested which led to an early expansion are also reported frequently. Review on studies related to design variables for the size of rest area shows that they mostly focus on entering rate, the most superficial aspect of driver’s behavior with regression analysis with mainline traffic volume of and geographical condition. Also, studies did not succeed to explain the difference in entering rates of two different rest areas with similar mainline traffic volume. In this research, aggregate methodology has been adopted to overcome prior studies’ limitation. DSRC (Dedicated Short Rage Communication) data collected from RSE (Road Side Equipment) along expressway has been analyzed to construct trip trajectory of each vehicle. From the analysis of each vehicle’s trip trajectory, rest area usage pattern has been found out to be a result of each vehicle’s travel characteristics including departure time, time of the day when passing rest area, and driving duration. And as a result, data-driven analysis methodology was able to be laid out.

As the demand of fossil fuel has been increased, meeting future will be faced with exhausted non-renewable energy generation. In addition, there is a lot of expectation that fossil fuel resources are expected to get depleted in the end of century. Piezoelectric energy harvesting technology has significant advantages over other renewable energy sources such as solar panel, wind and geothermal energy. By using the pressure of vehicles, the piezoelectric energy transforms to electric energy by deformation of paving materials. There are many studies about this theme, only a few researches have been conducted on-site. It means that piezoelectric harvester is not available for roadway. Therefore, it is necessary to make it better a research framework that is available technology of piezoelectric materials and paving materials. The piezoelectric generator is tested before piezoelectric harvester manufacture for roadway. Each piezoelectric generator produces 9.38[mW/cm²] and piezoelectric harvester is manufactured by the number of 85 the piezoelectric generator. This harvester size has 50*20*9cm3 which is considered for wheel path of vehicle. When the chosen vehicle (about 2 ton) pass this harvester, the amount of electric energy is 255[W/m²] under 2[mm] of deformation and 30[km/h] of velocity. In this situation, the gathered energy is multiplied the maximum of voltage and electric current then divide it for the area of harvester. The test result is the temperature difference between the inside and outside after the thermal insulation coating process. When the external surface temperature is increased to 180 degrees, the internal temperature is kept 80 degrees even after about 30 minutes, indicating that the internal materials are protected from heat. In spite of many advantages with piezoelectric harvesting system, it is very hard to fit between roadway and harvester because of pavement damage. Most of paving material has a strong thickness. In this study, instead of asphalt and concrete pavement, the paving material is compound of poly-urethane to protect rutting and damage. To analysis for behavior, test is conducted by 90,000 times of wheel load on the pavement. The red line on the graph is commonly used asphalt pavement and the green one is polyurethane pavement. As it seemed that polyurethane pavement shows that the depth from wheel load is over 5 times better performance compared with asphalt pavement. Construction design is first of all, cutting off asphalt which is established before, then set up the tenth of piezoelectric harvesters, twenty fourth of road markers is installed into the roadway. Before filling up to space with polyurethane materials, wire arrangement and connect to controller. Each harvester is connected with controller that makes a signal for voltage, temperature sensor, water leak sensor. In order to use electric energy by harvester, road markers are selected, which each harvester has three of road markers. A circuit for lighting the light emitting device using the output of the harvester installed in the rest area was designed and manufactured. Basically, a circuit is configured to light up the harvester output, and a commercial power supply can be used in case the output of the harvester is reduced due to the durability thereof, and a controller is manufactured for each harvester to connect the road markers. Key Words: Piezoelectric Harvester

PURPOSES: In this study, design elements of rest areas for drowsy drivers are classified and appropriate criteria for each design element are presented. METHODS : By comparing and analyzing the design criteria for rest areas, the most appropriate installation criteria were suggested by considering the driving patterns of rest area users. RESULTS: As a result of the study, elements influencing the design of rest areas for drowsy drivers are suggested such as installation location and installation type. In addition, proper separation distance between resting areas was suggested considering vehicle flow, users’fatigue and physiological needs. Other criteria for rest areas were also suggested. CONCLUSIONS : Proper safety facilities were not installed in rest areas because appropriate criteria were not established. In this study, design elements were derived and installation criteria were designed so that rest areas could be used safely and conveniently.

This study was to investigate the association among satisfaction of nutrition labeling, change of purchase behaviors, and dietary life care, based on the awareness of nutrition labeling at expressway rest areas. The subjects (n=903) were divided into two groups, according to the awareness of nutrition labeling: Awareness of Nutrition Labeling (ANL) group, n=367; Non Awareness of Nutrition Labeling (NANL) group, n=536. Effort of health care and identification of nutrition labeling was significantly higher in the ANL group, compared with the NANL group. As for the main reason for not identifying nutrition labeling, ‘not interested in nutrition labeling’ was the highest in the ANL group, and ‘Don't know nutrition labeling is provided’ in the NANL group. Identification ratio of nutrition labeling in future was significantly higher in the NANL group, compared with the ANL group among the subjects who didn't identify nutrition labeling before. After their becoming aware, a change of food purchase after reading the nutrition labeling was significantly higher in the ANL group, compared with the NANL group. Health beliefs on the nutrition labeling were significantly higher in the ANL group, compared with the NANL group. Satisfaction of nutrition labeling was also significantly higher in the ANL group, compared with the NANL group. The ANL group also expressed a necessity of expansion of nutrition labeling, compared with the NANL group. In the ANL group, identification of nutrition labeling was significantly higher in the hard effort group, compared with the little effort group of dietary life care. Therefore, improvement and campaign of nutrition labeling for consumers at expressway rest areas, especially for the NANL group, will be effective in identifying nutrition labeling for their health care.

본 연구에서는 농촌마을 쉼터가 농촌개발사업의 한 갈래로 계획되어 시행되고 있으나 주민의 요구를 충족시키지 못하고 있는 상황에서 새로이 계획하여 조성하는 마을 쉼터의 경우 대규모로 조성이 되는 경우가 많고 부지의 선정 및 확보에 문제가 있어 접근성이 떨어지는 경우가 많다. 이러한 문제점은 마을쉼터의 활용성을 떨어뜨리는 결과를 초래하게 된다. 농촌주민의 실질적인 쉼터로서의 활용을 위해서는 농촌마을의 유휴공간을 적절하게 활용하여 소규모 쉼터를 분산하여 조성하는 것이 바람직하다고 사료된다. 따라서 본 연구에서는 유휴공간을 활용한 농촌마을 쉼터의 디자인을 제안함으로써 후행연구에서 다양한 디자인의 마을쉼터가 연구되어 농촌마을 주민들에게 생활의 편의성을 제공하고 커뮤니티 형성에 보다 적극적으로 기여하며 물리적 환경개선을 통하여 쾌적성 및 심미성을 증진하는데 도움이 되기를 기대한다. 그에 따라 농촌마을 쉼터에 대해 고찰하고 농촌마을 실정에 맞는 유휴공간을 활용한 마을쉼터 디자인을 제안하여 농촌마을의 특색을 담아 활용성을 높이고자한다.

PURPOSES: Design of approach roads of rest areas in highway has many drawbacks such as geometric design elements. There has been traffic accidents occured in these approach roads of rest areas. Thus, design criteria is required in order to protect accidents from being occurred. In case of Korea, geometric structure design criteria of entry facilities, such as toll-gate, interchange, junction etc was established. However there are no presence in a detailed standards for geometric structure of the rest area which affiliated road facilities. METHODS: In this study, analytic on accidents was carried out in regards to the entry of geometric structure of resting areas by utilizing a sight survey and an investigation research of traffic accidents. The survey was targeting 135 general service areas. Collisions with physical channelization and safety facilities occurred due to speeding, rapid entry, and etc at the entrance nose section. At the entrance connector roads, accidents caused by speeding, negligence, over-operation of handle of drivers were main reason of accidents. Discriminant analysis were conducted about geometric elements to distinguish influencing factors for traffic accidents. the lengths and access angles of the entrance connector roads were regarded as to have the high relation with traffic accidents. RESULTS: After classifying the design section of resting areas' entry as well as derive design elements on each section, a speed measurement by targeting entry of rest areas and car behavior surveys were performed, then each element's minimum standard was derived through the analyses. According to the speeds at the starting/end point of entrance connector road, the range of the junction setting angle of the entrance connector road is defined as 12˚~17˚ and the connector length model was suggested. CONCLUSIONS: Suggest improvement plans for existing rest areas that can be applied realistically. This should be corresponded to the standards of entry and exit of developed rest areas.

We summarize the progress on the rest-frame optical spectroscopy of quasars at 3 2.5−5μm . This spectral window has been utilized for detecting redshifted Hα emission lines of our high redshift subsample of quasars. From the calculated emission line widths and luminosities we measured supermassive black hole masses using well calibrated optical mass estimators. Science topics regarding optical based black hole masses at high-z are discussed.

휴게소 진 출입부는 설계속도 등이 급변하는 구간으로 교통안전 취약구간이며 특히, 휴게소 진입부는 감속과 주차공간 검색 두 가지 작업이 동시에 수행되므로 이용차량의 안전성을 확보할 수 있는 설계기준이 필요하다. 국내의 경우 영업소나 나들목, 분기점 같은 출입시설에 대한 기하구조 기준은 수립되어 있는 반면, 도로의 부속시설인 휴게소에 대한 상세한 기하구조 기준은 없는 실정이다. 이에 본 연구에서는 일반형 휴게소 135개소를 대상으로 한 현장조사 및 사고조사 자료를 활용하여 휴게소진 출입부 기하구조에 대한 문제점을 도출하였다. 휴게소 진 출입부의 설계구간을 분류하고 각 구간에 대한 설계요소를 도출한 후, 휴게소 진 출입부를 대상으로 속도조사 및 차량주행행태 조사를 수행하고 분석을 통해 설계요소별 최소 기준을 도출하였다. 진입 연결로의 시/종점 속도에 따라 감속거리 산정식을 이용하여 진입 연결로의 최소길이는 40m를 제안하였고, 주행행태를 기반으로 선형 안전성 평가를 통해 접속 설치각은 12~17˚를 제안하였다. 개발된 휴게소 진입부 설계기준은 신설되는 휴게소 뿐만 아니라 기존 휴게소에 대해 현실적으로 적용 가능한 개선방안을 제시할 수 있을 것으로 판단된다.

최근 비점오염원에 대한 관심이 높아지면서, 환경부 및 유관단체를 중심으로 노면 유출수를 포함한 비점오염원(Non point source)에 대한 현황 조사 및 처리 방법에 대한 관심이 증가하고 있다. 고속도로 휴게소 주차장 노면 유출수는 고속도로 본선 노면 유출수보다 유해물질 오염도가 높을 것으로 예상되어, 본 연구는 이 지역의 노면 유출수 오염도 조사를 통해 유출수 평가 및 노면 유출수 저감시설의 저감효과를 분석하여 휴게소 노면유출수 관리방안을 수립하는 것을 목적으로 하고 있다. 휴게소지점에 대한 강우 유출수 분석 결과 포장지역의 특성인 초기강우현상을 볼 수 있었으며, 강우초기에 입자상물질은 중금속과 결합하여 다량 유출되는 특성을 나타내었다. 휴게소 지점의 강우유출수에 대한 오염물질별 EMC에 대한 95% 확신범위로는 TSS 128.2-273.4mg/L, COD 145.4-310.1mg/L, TN 6.1-11mg/L, TP 1.9-2.9mg/L의 범위로 분석되어 고속도로에서 유출되는 강우유출수와 비슷한 수준으로 유출되는 것으로 분석되었으나, 중금속의 경우 고속도로에 비해 고농도의 중금속이 유출되는 것으로 나타났는데, 이것은 차량 정차시 브레이크 패드나 타이어의 마모등에 의한 것으로 판단된다. 휴게소지점에 대한 면적당 발생되는 부하량 통계분석결과, TSS의 평균 부하량은 1411.6mg/m2로 산정되었으며, COD 709.7mg/m2, TN 44.0mg/m2, TP 10.4mg/m2로 산정되었다. 중금속의 경우 Total Cu 12927.4μg/m2, Total Fe 32074.4μg/m2, Total Pb 40371μg/m2, Total Ni 10679.2μg/m2로 산정되었다.

The mu opioid receptor (MOR) has been regarded as the main site of interaction with analgesics in major clinical use, particularly morphine. The repressor element-1 silencing transcription factor (REST) functions as a transcriptional repressor of neuronal genes in non-neuronal cells. However, it is expressed in certain mature neurons, suggesting that it may have complex and novel roles. In addition, the interactions between MOR and REST and their functions remain unclear. In this study, we examined the effects of morphine on the expression of REST mRNA and protein in human neuroblastoma NMB cells to investigate the roles of REST induced by MOR activation in neuronal cells. To determine the effects of morphine on REST expression, we performed RT-PCR, real-time quantitative RT-PCR, western blot analysis and radioligand binding assays in NMB cells. By RTPCR and real-time quantitative RT-PCR, the expression of REST was found to be unchanged by either the MOR agonist morphine or the MOR specific antagonist CTOP. By western blot, morphine was shown to significantly inhibit the expression of REST, but this suppression was completely blocked by treatment with CTOP. In the radioligand binding assay, the overexpression of REST led to an increased opioid ligand binding activity of endogenous MOR in the NMB cells. These results together suggest that morphine inhibits the expression of REST in human neuroblastoma cells through a post-transcriptional regulatory mechanism mediated through MOR.