• Journal of the Korean Institute of Landscape Architecture
• /
• v.38 no.2
• /
• pp.75-93
• /
• 2010

Seen topographically, Busan is a city that is coastal and hilly. In the city, most parks have been formed around mountain areas that are not so useful. They also are unbalanced in location among different regions of the city. The purpose of this study is to find how to manage urban parks towards green network promotion. For the purpose, this researcher first analyzed physical and environmental characteristics of urban parks located within the main living spheres of Busan. Then, the researcher examined interactive relations between those parks and downtown areas surrounding them to classify types of the parks. In association, the researcher classified the entire of the city into inland and coastal regions. And the researcher examined mountainous and hilly urban parks that were 150 to 300 meters above sea level in the former region and 100 to 150 meters above sea level in the latter. Findings of the study can be summarized as follows. The above examination found that parks of Busan feature physically penetrating and overlapping with downtown areas of the city. How well the green zones of Busan in form of urban park are inter-connective and influential to each other heavily depends on shapes and functions that the downtown areas of the city have. In this study, urban parks of Busan were grouped according to their types and then analyzed. Based on results of the analysis, the researcher tried to find how to increase the utility of another urban parks that are expected to be formed and how to promote so-called the green network that integrates greens. Considering findings of the study, the researcher would make the following suggestions. In case of forming an urban park in a gently sloped green zone which is easily accessible and noticeable, it's important that the park should include a stream to which another green zone is converged or, if the park is located near a costal area, contribute to promote urban functions and openness. While, in a high-altitude green zone, it's more effective to form so-called the green way that consists of some limited usable site of the zone and greens behind it and then form a hub of regional community at the intersection between the main road and main gate to the urban park, contributing to the green network promotion.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.17 no.1
• /
• pp.131-140
• /
• 2015

After drawing the sensory images from the color green, the difference of sensory images and the difference of the color green according to demographic characteristics and which factors affect the preference have been analysed. The thirty six-photos of 2013 women fashion show on the STYLE.COM were used for the stimuli of green colour fashion for the questionnaire. The people surveyed were adults in their 20s to 50s. The 123 copies of the questionnaire were used for the statistical analysis of this study. Factor analysis, Cronbach's ${\alpha}$ test, t-test, ANOVA, Duncan test and Regression analysis test were carried out by SPSS 19 for the statistical analysis of collected data. The results were as follows. The sensory images of green fashion were drawn in six types. The sensory images of green fashion according to demographic characteristics showed a significant difference depending on martial status, age, monthly income and occupation. The preference of green colour fashion according to demographic characteristics showed a significant difference depending on sex, age, monthly income, occupation. The variables affecting the preference of green fashion were identified as four types, and the most affecting variable to the preference was the favorable and familiar factor. These research results will become available on selecting the target customer and making the marketing differentiation strategy when planning fashion products.

• Geophysics and Geophysical Exploration
• /
• v.26 no.1
• /
• pp.1-7
• /
• 2023

This study derives the expressions of vector gravity and gravity gradient tensor due to an elliptical cylinder. The vector gravity for an arbitrary three-dimensional (3D) body is obtained by differentiating the gravitational potential, including the triple integral, according to the shape of the body in each axis direction. The vector gravity of the 3D body with axial symmetry is integrated along the axial direction and reduced to a double integral. The complex Green's theorem using complex conjugates subsequently converts the double integral into a one-dimensional (1D) closed-line integral. Finally, the vector gravity due to the elliptical cylinder is derived using 1D numerical integration by parameterizing a boundary of the elliptical cross-section as a closed line. Similarly, the gravity gradient tensor due to the elliptical cylinder is second-order differentiated from the gravitational potential, including the triple integral, and integrated along the vertical axis direction reducing it to a double integral. Consequently, all the components of the gravity gradient tensor due to an elliptical cylinder are derived using complex Green's theorem as used in the case of vector gravity.

• Journal of Korean Society of Rural Planning
• /
• v.25 no.1
• /
• pp.113-125
• /
• 2019

The purpose of this study is to provide the demand information about services (S/W) and infrastructure (H/W) for rural welfare and culture. The survey was conducted on the overall satisfaction level, the condition change, the importance-satisfaction level of each field and the top priority items for administrative agencies and rural residents. In the overall satisfaction level, administrative agencies responded more than 'normal' to all fields, but the overall satisfaction level was lower than 'normal' in the fields excluding the healthcare field in the case of rural residents. In terms of condition changes compared to the past five years, both administrative institutions and local residents evaluated the improvement. IPA analysis was conducted to identify the priority ranking of each field and it was found that emergency medical facilities in the healthcare field, infant day care facilities in the social welfare field, movie theaters in the culture field, lifelong education institutions and academy facilities in the education field and private sports facilities in the leisure and sports field were most needed, respectively. The results of this study are expected to be helpful in increasing the efficiency and presenting the improvement direction about the development policy of the rural culture and welfare.

• Resources Recycling
• /
• v.23 no.2
• /
• pp.81-89
• /
• 2014

Approximately 8.5 million tons of fly ash and 740,000 tons of briquette ash were produced in 2010. Inefficient recycling of coal ash has been a heavy economic and environmental burden and economical coal ash utilization technologies are required to turn coal ash into valuable resources. In this study the patents and literature were analyzed to understand the present situation of coal ash recycling technologies and to promote utilization of coal ash for producing a non-sintering green cement, geopolymer. The survey was based on the open patents of USA, European Union, Japan and Korea, and the papers in SCI - indexed journals published between 1979 and 2013. Technical key words were used for data collection and noise filtering. Trends of recycling technologies in utilization of coal ash for producing geopolymers were discussed in terms of time periods, countries, companies and various forms of technologies.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2020.06a
• /
• pp.272-272
• /
• 2020

급격한 도시화와 기후변화로 인해 기존 물순환 체계가 왜곡됨에 따라 저영향개발(Low Impact Development) 기법의 필요성이 증가하고 있는 추세이다. LID 요소 중 하나인 옥상녹화는 국내에 도입이 많이 되었고 적정 설계인자를 설정하기 위해 지속적으로 연구를 수행하고 있다. 따라서 본 연구에서는 옥상녹화 설계인자의 설정과 수문·식생·토양을 고려한 시나리오 구축을 통해 국내 물순환 모형인 K-LIDM을 이용하여 옥상녹화의 정량적 물순환 효율성 분석을 수행하였다. 대상유역은 한국 그린인프라 저영향개발센터 내 옥상녹화 실험장으로 옥상녹화에서 계측하고 있는 측정값을 기반으로 K-LIDM 모형 검보정을 수행하고 옥상녹화의 설계인자에 따른 시나리오를 통해 수문학적 성능평가를 수행하였다. 단기강우 시나리오를 적용하였을 때 옥상녹화는 일반콘트리트 옥상에 비해 5.25 ~ 36.48%의 유출저감률이 산정되었으며, 유출저감 한계효율은 지속시간 60분, 120분, 180분 일 때 각각 8.93%, 6.17%, 5.25%로 산정되었다. 장기강우 시나리오를 적용하였을 때는 연평균 53.54%의 유출저감률이 산정되었다. 또한 토심의 증가에 따른 유출량 감소는 관목>교목>지피 식물 순으로 나타났으며, 토심이 1cm 증가할 때의 저감유출랴은 지피 식물의 경우 0.0002㎥/s, 교목의 경우 0.0005㎥/s, 관목의 경우 0.0008㎥/s로 나타났다. 옥상녹화는 건물 설계에 따른 적재하중과 환경조건, 식물선정, 생육에 많은 영향을 받는 기술요소이므로 다양한 시나리오를 통한 수문학적 성능평가가 필요시 된다. 본 연구결과는 정량적 옥상녹화시스템 효율성 검증을 실시하기 위한 옥상녹화 설계가이드라인에서 고려사항을 제시할 수 있는 기준이 될 것이라고 기대된다.

• Transactions of the Korean hydrogen and new energy society
• /
• v.35 no.3
• /
• pp.324-335
• /
• 2024

The container package type sealed water electrolysis production system installs mechanical balance of plant and electrical balance of plant as an integrated unit to enable independent operation within the package module. The auxiliary equipment required to operate the water electrolysis system must be integrated to reduce the installation area and shorten the installation time. At this time, as leak risk factors are placed in a dense space, when a hydrogen gas leak accident occurs, it can have a mutual influence on other adjacent facilities, so it contains various risk factors. In this study, when a gas leak occurs in a container packaged water electrolysis system, possible sources of leakage in the system according to the KS C IEC 60079-10-1:2015 and KGS GC101 standards were identified, and the leak rate and leak characteristics were calculated. did. The hazardous area and its range were calculated according to ventilation and dilution characteristics. In order to optimize ventilation characteristics, design of experiment was used to analyze the influence to evaluate the adequacy of ventilation, and overseas ventilation standards were analyzed and compared. In addition, the optimal ventilation structure and characteristics of the container packaged water electrolysis system were presented according to the results of the experimental design method.

• Journal of Life Science
• /
• v.32 no.2
• /
• pp.148-154
• /
• 2022

Focal adhesion kinase (FAK) is known to regulate cell adhesion, migration, and mechanotransduction in focal adhesions (FAs). However, studies on how FAK activity is regulated in the plasma membrane microdomains according to the composition of extracellular matrix (ECM) proteins are still lacking. A genetically encoded fluorescence resonance energy transfer (FRET)-based biosensor can provide useful information on the activity of intracellular signals with high spatiotemporal resolution. In this study, we analyzed the FAK activities in lipid raft (detergent-resistant membrane) and non-lipid raft (non-detergent-resistant membrane) microdomains using FRET-based membrane targeting FAK biosensors (FAK-Lyn and FAK-KRas biosensors) under four different ECM protein compositions: glass, type 1 collagen, fibronectin, and laminin. Interestingly, FAK activity in response to laminin in a lipid raft microdomain was lower than that in other ECM conditions. Cells subjected to fibronectin showed higher FAK activity in a lipid raft microdomain than that in a non-lipid raft microdomain. Therefore, this study demonstrates that the FAK activity can be distinctively regulated according to the ECM type and the environment of the plasma membrane microdomains.

• Journal of Bio-Environment Control
• /
• v.22 no.4
• /
• pp.298-302
• /
• 2013

The experiment was carried out to examine the effect of planting date on the growth and marketable yield on rain shielding vinyl house in Busan area. Okra cultivars were 'Jukokra', 'Greensod', 'Marumichang', 'Betafive' and 'Akamarumichang'. Planting date were June and July. Plant height, stem length and leaf width were significantly different between various cultivars. Plant height and stem length were best at 'Akamarumichang' among all cultivars tested and the 'Betafive' cultivars showed the lowest plant growth of June treatment. There was no significant difference in planting of July treatment. Marketable yield of okra fruit was affected by planting date. In case of June planting date, 'Betafive' cultivars produced the highest marketable yield (4,286 kg/10a) in green fruit. Marketable yield of green okra fruit was increased at 'Betafive' and 'Greensod' cultivars, whereas 'Marumichang' cultivars was lowerd. Therefore, the optimum planting date was considered June planting in rain shielding culture of okra in Busan area.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2010.04a
• /
• pp.165-166
• /
• 2010

Today, because the international community recognized happing of environmental crisis on the world the international environmental agreements and advanced country's environmental regulations are very tight. Especially, port cities are posed strong threats to the environment due to receiving high pollution from ships and cargo vehicle emissions. So many advanced country (ex. United States, Japan, EU) implement Natural-friendly Port Policy and Program. Environmental-Regulations become more stringent in the future, management of low carbon dioxide emissions brings the competitiveness.(중략)