• Title/Summary/Keyword: Agency support

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The Effects of Apartment Facility Maintenance on the Residential Satisfaction of Residents (아파트 시설물 유지관리가 입주자의 주거만족도에 미치는 영향)

  • Kim, Myung-Hee;Kong, Ha-Sung
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.3
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    • pp.175-183
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    • 2020
  • This study suggests a solution regarding the effects of apartment facility maintenance and fire safety facility maintenance on the residential satisfaction of residents. The results are as follows. Firstly, facility maintenance had a negative effect on residential satisfaction. Analysis revealed that residential satisfaction decreased the more breakdowns there were in the facilities. This revealed that when maintenance staff neglect the residents' complaints due to the repetitive aspect of their jobs, there was a negative effect on residential satisfaction; therefore, residential satisfaction must be increased by maintaining the facilities well and training support for maintenance staff. Secondly, fire safety facilities had a negative effect on residential satisfaction. Analysis revealed that residential satisfaction decreased the more malfunctions there were in the fire safety facilities and the more replacements there were in fire fighting equipment. This revealed the importance of safety and the fact that the apartment heavily relies on fire safety facilities because there may be a low awareness regarding safety; therefore, maintenance staff must lower the damage from fire safety facilities and to increase the residential satisafaction of residents. Lastly, there needs to be repetitive training and education for residents regarding fire fighting and evacuating in accordance with the fire fighting plan as a means to strengthen residents' safety awareness.

Calibration of Portable Particulate Mattere-Monitoring Device using Web Query and Machine Learning

  • Loh, Byoung Gook;Choi, Gi Heung
    • Safety and Health at Work
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    • v.10 no.4
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    • pp.452-460
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    • 2019
  • Background: Monitoring and control of PM2.5 are being recognized as key to address health issues attributed to PM2.5. Availability of low-cost PM2.5 sensors made it possible to introduce a number of portable PM2.5 monitors based on light scattering to the consumer market at an affordable price. Accuracy of light scatteringe-based PM2.5 monitors significantly depends on the method of calibration. Static calibration curve is used as the most popular calibration method for low-cost PM2.5 sensors particularly because of ease of application. Drawback in this approach is, however, the lack of accuracy. Methods: This study discussed the calibration of a low-cost PM2.5-monitoring device (PMD) to improve the accuracy and reliability for practical use. The proposed method is based on construction of the PM2.5 sensor network using Message Queuing Telemetry Transport (MQTT) protocol and web query of reference measurement data available at government-authorized PM monitoring station (GAMS) in the republic of Korea. Four machine learning (ML) algorithms such as support vector machine, k-nearest neighbors, random forest, and extreme gradient boosting were used as regression models to calibrate the PMD measurements of PM2.5. Performance of each ML algorithm was evaluated using stratified K-fold cross-validation, and a linear regression model was used as a reference. Results: Based on the performance of ML algorithms used, regression of the output of the PMD to PM2.5 concentrations data available from the GAMS through web query was effective. The extreme gradient boosting algorithm showed the best performance with a mean coefficient of determination (R2) of 0.78 and standard error of 5.0 ㎍/㎥, corresponding to 8% increase in R2 and 12% decrease in root mean square error in comparison with the linear regression model. Minimum 100 hours of calibration period was found required to calibrate the PMD to its full capacity. Calibration method proposed poses a limitation on the location of the PMD being in the vicinity of the GAMS. As the number of the PMD participating in the sensor network increases, however, calibrated PMDs can be used as reference devices to nearby PMDs that require calibration, forming a calibration chain through MQTT protocol. Conclusions: Calibration of a low-cost PMD, which is based on construction of PM2.5 sensor network using MQTT protocol and web query of reference measurement data available at a GAMS, significantly improves the accuracy and reliability of a PMD, thereby making practical use of the low-cost PMD possible.

An Analysis of the Status of OER(Open Educational Resources) Usage in Asia (아시아지역의 공개교육자원 활용현황 분석)

  • Lee, Eunjung;Kim, Yong
    • Journal of Internet Computing and Services
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    • v.13 no.6
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    • pp.41-53
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    • 2012
  • Open educational resources(OER) enable the spread of mutual information exchange and provide advantages to both their users and institutions, such as reducing costs, improving content quality, and establishing relationships. The recent research on OER was about their connection to formal education, copyright trends, and corporate e-learning. There have been very few studies, however, on the utilization of OER and on the problems related to their practical use. Thus, this study was conducted for the purposes of analyzing the status of OER usage in education-related institutions and of providing suggestions for institution operation based on the analysis results, to promote the use of OER. A survey was conducted among more than 200 institutions in Asia, and the survey results showed that 'images and visual materials' are the most commonly used materials in Asia, and that the factors barring OER usage in the said region are 'lack of awareness', 'lack of skills', 'the absence of a reward system', and poor cooperation in participation. To promote OER usage, each institution should provide training courses about awareness, utilization skills, and copyrights. There is also a need to provide support for the establishment of reward systems and environments for OER usage. Finally, more active participation is required for inter-agency cooperation in OER sharing.

Precise Topographic Change Study Using Multi-Platform Remote Sensing at Gomso Bay Tidal Flat (다중 원격탐사 플랫폼 기반 곰소만 갯벌 정밀 지형변화 연구)

  • Hwang, Deuk Jae;Kim, Bum-Jun;Choi, Jong-Kuk;Ryu, Joo Hyung
    • Korean Journal of Remote Sensing
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    • v.36 no.2_2
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    • pp.263-275
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    • 2020
  • In this study, DEMs (Digital elevation model) based on LIDAR, TanDEM-X and UAV (Unmanned Aerial Vehicle) are used to analyze topographic change of Gomso tidal flat during a few years. DEM from LIDAR data was observed at 2011 by KHOA (Korean hydrographic and oceanographic agency) and DEM based on TanDEM-X data was generated at Lee and Ryu (2017). UAV data was observed at KM and KH area of Gomso tidal flat. KM area was surveyed at MAY and AUG 2019, and KH area was surveyed at APR 2018 and MAY 2019. During research period, 2011 to AUG 2019, elevation of KM area is decreased 0.24 m in average, and Chenier is retreat to landward about 130 m. In KH area, elevation is increased 0.16 m in average during research period, 2011 to MAY 2019. It is expected that multi-platform remotely sensed data can help to study accurate topographic change of tidal flat.

Biofilm Formation Characteristics of Major Foodborne Pathogens on Polyethylene and Stainless Steel Surfaces

  • Kim, Hyeong-Eun;Kim, Yong-Suk
    • Journal of Food Hygiene and Safety
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    • v.35 no.2
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    • pp.195-204
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    • 2020
  • This research was investigated the effects of temperature and time against the formation of biofilms by foodborne pathogens on surfaces of polyethylene and stainless steel. After preliminary experiments with 32 strains from 6 species of foodborne pathogens (Bacillus cereus, Listeria monocytogenes, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Salmonella Typhimurium), one strain from each species with the highest biofilm formation efficiency was selected. All foodborne pathogens showed a tendency toward an increased ability for biofilm formation with increasing temperature, but there was no consistency between the two materials and between foodborne pathogens. At all tested temperatures, the biofilm formation ability of E. coli and P. aeruginosa on the polyethylene surface was higher than that on the stainless steel surface with significant differences. The foodborne pathogens all formed biofilms immediately upon inoculation, and biofilm formation by E. coli, P. aeruginosa, and S. Typhimurium increased on both the polyethylene and stainless steel surfaces at 1 h after inoculation compared to at 0 h. At 7 days after biofilm formation, the other strains except S. aureus showed no difference in survival rates on polyethylene and stainless steel. The ability of these 6 foodborne pathogens to form biofilms showed different trends depending on the type of bacteria and the instrument material, i.e., polyethylene and stainless steel.

An Adaptive Temporal Suppression for Reducing Network Traffic in Wireless Sensor Networks (무선 센서 네트워크에서 통신량 감소를 위한 적응적 데이터 제한 기법)

  • Min, Joonki;Kwon, Youngmi
    • Journal of the Institute of Electronics and Information Engineers
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    • v.49 no.10
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    • pp.60-68
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    • 2012
  • Current wireless sensor networks are considered to support more complex operations ranging from military to health care which require energy-efficient and timely transmission of large amounts of data. In this paper, we propose an adaptive temporal suppression algorithm which exploits a temporal correlation among sensor readings. The proposed scheme can significantly reduce the number of transmitted sensor readings by sensor node, and consequently decrease the energy consumption and delay. Instead of transmitting all sensor readings from sensor node to sink node, the proposed scheme is to selectively transmit some elements of sensor readings using the adaptive temporal suppression, and the sink node is able to reconstruct the original data without deteriorating data quality by linear interpolation. In our proposed scheme, sensing data stream at sensor node is divided into many small sensing windows and the transmission ratio in each window is decided by the window complexity. It is defined as the number of a fluctuation point which has greater absolute gradient than threshold value. We have been able to achieve up about 90% communication reduction while maintaining a minimal distortion ratio 6.5% in 3 samples among 4 ones.

National Strategic Planning For Facilitating the Development of New Drugs in the Korea Food and Drug Administration (국내 신약개발 촉진을 위한 식약청의 국가연구개발 사업 전략수립)

  • Kim, Jong-Wook;Kwon, Kwang-Il;Yoo, Kwang-Soo;Park, So-Hyun;Lim, Chul-Joo;Choi, Don-Woong
    • Journal of the Korean Applied Science and Technology
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    • v.25 no.4
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    • pp.539-555
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    • 2008
  • It is well understood that developing new drugs is one of the highest value-added businesses in a country; however, the current governments' spending in pharmaceutical research and development(R&D) is minimal in Korea. This paper suggests that different governmental bodies should take in charge of different stages of the R&D process in order to maximize the use of limited government research funding. First, during the initial phase of the drug development, including clinical trials, the Ministry of Education, Science and Technology is the most appropriate governmental organization to support the research. For later procedures such as supporting the industries for exporting developed drugs, legislative approvals, and building infrastructure for future clinical trials should be supported by the Ministry of Knowledge and Economy and the Ministry of Health and Welfare along with the Korea Food and Drug Administration(KFDA). The KFDA, which is the main governmental agency approving newly developed drugs in the market, will need to take a crucial responsibility in the initial phase of the pharmaceutical R&D by guiding the industries with timely and proper information. As a first step, it is recommended to set up and operate a center for supporting new drugs, so that the industries can facilitate the development of marketable drugs which meet customers' needs. Later, in order to expedite the process of exporting and getting approvals of the newly developed drugs from foreign countries, it is necessary to develop new approval system, which includes introduction of the Good Manufacturing Practice (GMP), mandatory validation system, and education program for supporting expertise. Lastly, the KFDA needs to take an active role in developing Korean pharmaceutical industries by communicating with other foreign governments with regards to the globalization of the Korean pharmaceutical industries. For example, as a follow up after the Free Trade Agreement(FTA), active discussion on GLP of Mutual Recognition Agreement(MRA) with the United States of America, should be seriously considered.

A Study on the Revitalization of Regionally Closely-related Traditional Markets in Small Town (소도읍지역 경제활성화를 위한 지역밀착형 전통시장 육성방안에 관한 연구)

  • Ryu, Tae-Chang;Byun, Chung-Gyu
    • Journal of Distribution Research
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    • v.16 no.5
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    • pp.103-122
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    • 2011
  • This study suggests regionally closely-related traditional market support measures that are intended. Market and the community to investigate the relationship between traditional markets and the degree of relationship with the local economy, whether the degree of cooperation with local communities, local people in stores and traditional markets, with a visual image, interacting with local relevance were. Executed questionnaire to merchants and traditional market connection specialists of the tradition market engaged to whole country small town. Small town region's traditional markets have a close relationship with the community. Contribute to regional economic development, and locals have a passion for shopping. Small town to enable local traditional market requires the following way. Through surveys and research policy implications are as follows: First, by constructing a civil partnership with a focus on the needs of local residents need market activation measures. Second, the traditional market members to build social relationships that contribute to their local needs. Third, Installation and utilization of community space in traditional markets is required. Fourth, to increase the participation of young people need to be developed in the program. Fifth, small town regional market collapse and space reorganization is needed.

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The Question of 'State and Art' with regard to Soviet Socialist Realism (소련 사회주의 리얼리즘에 관하여: '국민과 예술'의 문제)

  • Alexander, Morozov
    • The Journal of Art Theory & Practice
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    • no.7
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    • pp.125-163
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    • 2009
  • The artworks of Socialist Realism of the former Soviet Union, with the beginning of the 21st century, are gaining a new attention from art collectors. One reason for this might consist in the fact that relevant art pieces exemplify the ways in which they visualize ideas on the basis of their high-profile art tradition and also in which they integrate their utopian ideals with mysticism. These aspects of the Soviet art goes far beyond the wide-spread assumption that their art, as a means of propaganda, principally represents a political allegiance to the system. With Stalin coming into power in the 1930s, the artistic trend of Socialist Realism obtained a nationwide sympathy and support from people, giving birth to a new art which essentially corresponded to the demands of the political power. An official art current of the USSR over the period from the 1930s to 1950s, Socialist Realism was in tandem with the Communist commitment to the party and popularity, symbolizing a loyalty to the cause. It was thus characterized by plainness and lucidity so that ordinary people could gain easy access to art. Its salient feature, over an entire range of art, was an optimistic pursuit of a utopian dream. Therefore, it tallied with the popular sentiment for a Communist paradise, giving form to their beliefs in human agency working at the materialist world and also to such abstract concepts as force, fitness, and beauty by adding even mythical ideals. Its main subject matter includes harvest feasts of collective farms, imaginary socialist cities, grand marches of heroic laborers and in this way it served as a propaganda for a sacred utopia of socialist totalitarianism. On the other end of the spectrum, however, rose the second camp of art, which put an emphasis on bona-fide artistic activities of plastic art and on an artist's personal expression and freedom, as opposed to the surface optimism of Socialist Realism. Central to the Russian Avant Garde art, which prized the above-mentioned values, were Malevich's Geometric Abstraction and A. Rodchenko's Constructivism. Furthermore, in the transitional era of the late 20th century and the 21st century it was recognized that film art or electronic media art, rather than traditional genre of paintings, would function as a more efficient way of propaganda. These new genres were made possible by ridiculing the stereotypes of the Russian lifestyle and also by ignoring ethical or professional dimensions of artworks. That is, they reinvented themselves into a sort of field art, seemingly degrading the quality of artworks and transforming them into artifacts or simulacres in the very sense of post-modernism. The advent of the new era brought about the formation and occupation of pop culture of the younger generations, calling into question the idea of art as the class-determined. It also increased the attention to field art, which extensively found way to modern art centers, galleries, and exhibition projects. It can be stated that this was a natural outcome of human nature.

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An Exploratory Study on Adoption of Co-Working and Co-Working Space: Focusing on In-Depth Interviews with Mangers of One-Person Creative Company Business Center (코워킹 및 코워킹스페이스 수용에 대한 탐색적 연구: 부산지역 1인 창조기업 비즈니스센터 매니저에 대한 심층인터뷰를 중심으로)

  • Seo, Jong Seok;Ko, Deuk Young;Lee, Geun Choon;Ock, Young Seok
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.10 no.5
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    • pp.83-92
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    • 2015
  • Recently, Co-working that is a new trend of working and Co-working Space that create Co-working are increasing rapidly around the centers to support start-up such as one-person creative companies. However, the business centers located outside Seoul are not enough to recognize knowledge and skill for operating Co-working Space. Therefore, this study selects the big research issue which is "The recognition and case of co-working & application to co-working space" and the small research issue that is "Co-working Space operation activities" for qualitative research by using in-depth interview to managers of one-person creative company business centers. As a result, on the perspective of the big research issues, they understood Co-working concept, but the Co-working case was made by manager's effort without voluntary participation of the users. Co-working Space is important to recognize as a space for interaction and exchange information but was used only as a sharing space. And on the perspective of the small research issues, 'Space & Interior', 'Alliance and Partnership' and 'Community and Communication' show low awareness and activities. So, we suggest improvement plans through the case of best practices. This study is valuable, it could be a help to adapt and improve to Co-working Space in one-person creative company business center for creation of performance by Co-working.

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