• Proceedings of the Korea Water Resources Association Conference
• /
• 2016.05a
• /
• pp.266-266
• /
• 2016

2014년 8월 25일 시간당 130mm 이상의 폭우로 인하여 부산시 중구를 제외한 부산 전역에 걸쳐 인명 및 막대한 재산피해가 발생하였다. 이는 부산광역시의 지형특성상 고지대에 주택 등이 조밀하게 개발되어 불투수층의 증가 및 배수처리의 한계로 침수지역이 다량 발생하였고, 절개지 및 옹벽 등이 많은 지역, 소하천 및 산업단지 조성 후 지반이 약화된 지역 등에서 주로 피해가 발생하였다. 따라서 부산지역에서 도시홍수로 인한 막대한 피해를 입은 기장군과 부산광역시 일부 유역에 대하여 홍수 예보 시설을 설치 운영하기 위하여 체계적이고 효율적인 재해관리 방안을 마련하고자 하였다. 재난취약지역으로 선정된 기장군 일대와 부산광역시 일대의 총 10개 지점(14개소)에 대하여 현장 조사를 실시하여 수위관측시스템 설치를 위한 적절 지점을 선정하였으며, 이를 바탕으로 각 지점에 대하여 수리모형(HEC-RAS)을 구축하였다. 수리모형에서 산출된 결과를 바탕으로 도시 하천의 현실에 맞는 홍수 예 경보 발령을 위한 각 각의 4단계 기준수위(둔치위험 수위, 주의보 수위, 경보 수위, 하천범람 위험 수위)를 산정하였다. 그리고 각 지점별로 산정된 단계별 기준 수위를 이용하여 재난취약지역으로 선정된 기장군 6개 지점과 부산광역시 4개 지점에 대하여 "홍수 예 경보 발령을 위한 기준 수위 산정 결과"를 도출하였고, 위 결과를 바탕으로 부산광역시에 홍수 예 경보 발령을 위한 시스템을 구축하여 도심 재난 예방에 활용하도록 하였다. 또한 위 지점에 대하여 지속적인 하천 정비 등의 사후 관리 방안을 제시하였으며, 향후 부산광역시의 다른 재난취약지역에 대하여 보다 개선된 홍수 예 경보 시스템을 구축하여 현재 국가하천에 대하여 시행되고 있는 홍수 예보와 같은 재난 예방 시설의 구축과 국민의 생명과 재산을 보호할 수 있는 체계적인 대응 방안 마련에 기여하고자 하였다.

• Journal of Ginseng Research
• /
• v.26 no.2
• /
• pp.74-78
• /
• 2002

To develop a new traditional ginseng liquor by using rice and ginseng, the physicochemical properties and overall acceptability of ginseng liquors made by addition of different concentration (1-8%) of ginseng in some kinds of rice mash were investigated and compared. The Ilpum-4 traditional ginseng liquor which was prepared by adding 4% ginseng into Ilpum rice mash showed the best acceptability in the sensory evaluation test and high ethanol content (15.6%), and its angiotensin-converting enzyme inhibitory activity and electron-donating ability were better than those of the other ginseng liquors. The Ilpum-4 traditional ginseng liquor contained 0.53% (w/v) of crude saponin and it was mainly composed of ginsenoside Rg$_1$.

• The Journal of Bigdata
• /
• v.6 no.1
• /
• pp.161-178
• /
• 2021

The importance of 'Big Data' is increasing to the point that it is likened to '21st century crude oil'. For smart city IoT data, attention should be paid to quality control as the quality of data is associated with the quality of public services. However, data quality indicators presented through ISO/IEC organizations and domestic/foreign organizations are limited to the 'User' perspective. To complement these limitations, the study derives supplier-centric indicators and their priorities. After deriving 3 categories and 13 indicators of supplier-oriented smart city IoT data quality evaluation indicators, we derived the priority of indicator categories and data quality indicators through AHP analysis and investigated the feasibility of each indicator. The study can contribute to improving sensor data quality by presenting the basic requirements that data should have to individuals or companies performing the task. Furthermore, data quality control can be performed based on indicator priorities to provide improvements in quality control task efficiency.

• The Journal of the Korea Contents Association
• /
• v.21 no.9
• /
• pp.622-631
• /
• 2021

This study was conducted to verify the effects of individual psychological capital, spousal support, and organization's family-friendly work culture on work-life balance in social workers. For this purpose, married social workers working in social welfare facilities in Chungcheongbuk-do were surveyed, and 331 collected responses were used in the analysis. Multiple regression analysis revealed that resilience and optimism in individual psychological capital, spousal support, and expectations on working hours in organizations' family-friendly work culture were significantly associated with the work-life balance. In addition, there were different factors influencing the level of work-life balance according to gender and age. The findings suggest that efforts to enhance awareness and improve working conditions, such as the development of self-care program, education on the necessity of work-life balance, and implementation of work-life balancing system, are needed to improve the work-life balance of social workers.

• The Journal of the Korea Contents Association
• /
• v.19 no.8
• /
• pp.465-472
• /
• 2019

Although there are various cultural events and cultural contents produced in the region, there is a lack of distribution and spread of regional information to expand related economic consumption. This study combined local advertising by local advertisers with the knowledge search method in question and answer format from a location-based service perspective for the purpose of spreading and using local cultural information. The approach looked at domestic and international cases of knowledge search based on region and location-based advertising research, presented community model of location inquiry based information service and revenue model of local advertisement. Through this, this study designed a question and answer based community and operational structure model of local advertising, and developed an information service system in the form of prototyping. By extending the distribution of question and answer data among users to location information, it is meaningful that a business service model was presented that combines local cultural content information and the demand for user access with the revenue model of local advertising.

• Journal of Digital Convergence
• /
• v.17 no.6
• /
• pp.365-371
• /
• 2019

In this study, VR contents were produced by using the rose which is the material of the tomb of the surrealistic work wrestler of Rene Magritte, an artistic genre, as a motive. In conclusion, the distortion (spatial modulation) of the image scale is connected to the dynamic-curve and texture-soft areas, and the superposition (combination of contradictory images) is called the big-size, irregular-depth area, Are connected to the positions of big-size and irregular-space regions. The theme of the work was Dream, and the plants and roses patterns were produced in each timeline, and overlap, scale, distortion, overlap, distortion, and scale were used.

• The Journal of the Korea Contents Association
• /
• v.19 no.1
• /
• pp.60-73
• /
• 2019

This study is a descriptive research study to identify the role conflicts, positive psychological capital, organizational effectiveness, and factors affecting organizational effectiveness of nurses in small hospitals. The subjects of the study were nurses working in three small and medium-sized hospitals located in A city and 255 copies were used for final data analysis. The results showed that the roles of role conflict, isolation, role ambiguity, and resource shortage had a significant negative effect on organizational effectiveness. Role ambiguity and resource shortage of role conflict were significant (-) on positive psychological capital. Positive optimism, positive self efficacy, hope and optimism have a positive (+) effect on organizational effectiveness. Based on the results of this study, it is necessary to develop a variety of programs to reduce role conflict and demonstrate positive psychological capital in order to improve the organizational effectiveness of nurses in small and medium-sized hospitals.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.23 no.9
• /
• pp.1088-1095
• /
• 2019

The information and communication technology that is being developed recently has been greatly influencing the automobile market. In recent years, devices equipped with IT technology have been installed for the safety and convenience of the driver. However, it has the advantage of increased convenience as well as the disadvantage of increasing traffic accidents due to driver's distraction. In order to prevent such accidents, it is necessary to develop safety systems of various types and ways. In this paper implements a platform that can recognize LDWS and FCWS and PDWS by using a single camera without using radar sensor and camera fusion and stereo camera method using two or more sensors, and proposes to study multi-function driving safety platform using a single camera by analyzing recognition rate evaluation and validity on a vehicle.

• Journal of the Korea Convergence Society
• /
• v.10 no.9
• /
• pp.127-132
• /
• 2019

This study is an example of the registration of intellectual property rights by applying capstone design to airline service. To relieve the inconvenience of the 'Paper Cage' that is on sale in the airlines, the team create 'Foldable Inflight Pet Cage' for the convenience of passengers accompanying their pets. This allowed not only pets but also passengers on board to make comfortable and safe air travel. Through collaboration with aviation experts and pet cages production experts, the team produced foldable cages that were not previously available. For verification of products, preliminary survey was conducted to enable the commercialization of foldable cage. The project period was 15 weeks, and the participants consisted of 18 students, 1 professor, and 4 industry experts. This study shows Capstone Design can also be applied in airline service and be a valuable research on the necessity of industry-academic links and practical-oriented education.

• The Korean Journal of Applied Statistics
• /
• v.32 no.1
• /
• pp.83-97
• /
• 2019

As society develops, the dissemination of microdata has increased to respond to diverse analytical needs of users. Analysis of microdata for policy making, academic purposes, etc. is highly desirable in terms of value creation. However, the provision of microdata, whose usefulness is guaranteed, has a risk of exposure of personal information. Several methods have been considered to ensure the protection of personal information while ensuring the usefulness of the data. One of these methods has been studied to generate and utilize synthetic data. This paper aims to understand the synthetic data by exploring methodologies and precautions related to synthetic data. To this end, we first explain muptiple imputation, Bayesian predictive model, and Bayesian bootstrap, which are basic foundations for synthetic data. And then, we link these concepts to the construction of fully/partially synthetic data. To understand the creation of synthetic data, we review a real longitudinal synthetic data example which is based on sequential regression multivariate imputation.