• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2017년도 춘계 종합학술대회 논문집
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• pp.459-460
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• 2017

The research proposes theoretical recommendations for Smart City that targets elderly citizens. The elderly citizens in question are people currently in their mid-50s to early 60s, in order to adequately employ futuristic technologies into four major sectors: healthcare, post-retirement employment, community-based governance, and environment-friendly infrastructure. The research concludes that the technical application of welfare to the elderlies through constructing a purposeful Smart City is desirable, environmental consideration should come in prior concern as a sustainable foundation.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(I)
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• pp.433-435
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• 1987

Thermal reoxidation was carried out to eliminate hole traps at the surface of Si wafer. As the result, the good surface state of wafer was obtained and hole traps were eliminate at the inversion layer. For the evaluation of reoxidation effects. MOS diode was fabricated and its C-Y curve was plotted.

• 유통과학연구
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• 제22권7호
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• pp.53-61
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• 2024

Purpose: This study aims to analyze distribution of work ethic factors in moderating the influence of Locus of Control on Employee Performance at PDAM (Regional Water Utility) Makassar City. Research design, data and methodology: The sample uses a purposive sampling method with a number sample as many as 35 respondents in PDAM Makassar City. The data collection method used is giving questionnaires to employees in accordance with the research conducted. Data analysis was carried out using multiple linear regression analysis tests and moderated regression analysis with an absolute difference value approach. Results: Locus of control has a positive and significant effect on employee performance and distribution of work ethics are able to moderate the influence of locus of control on employee performance in PDAM Makassar City. Conclusion: when locus of control increases it will be followed by an increase in employee performance, and also equal distribution of work ethic will strengthen the influence of locus of control on employee performance at PDAM Makassar City. Work ethic values that can be implemented include determining work ethic values, clear communication to evaluation and adjustment. The limitation of this research is that it only uses respondents from civil servants and needs further development.

• 제어로봇시스템학회논문지
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• 제15권12호
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• pp.1203-1208
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• 2009

Green IT based u-City means that u-City having Green IT concept. If we adopt the situation awareness or not, the processing of Green IT may be reduced. For example, if we recognize a lot of speech sound on CCTV in u-City environment, it takes a lot of processing time and cost. However, if we want recognize emergency sound on CCTV, it takes a few reduced processing cost. So, for detecting emergency state dynamically through CCTV, we propose our advanced speech recognition system. For the purpose of that, we adopt HMM (Hidden Markov Model) for feature extraction. Also, we adopt Wiener filter technique for noise elimination in many information coming from on CCTV in u-City environment.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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• pp.359-360
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• 2007

현재 우리나라에는 최첨단의 정보통신 서비스를 제공을 목적으로 ubiquitous city(u-City)가 건설 중에 있다. 이들 도시에서 ITS(Intelligent Transportation Systems)는 도시거주민들에게 적절한 교통정보를 제공하는 동시에 최적으로 도시교통을 제어하는 방안이다. ITS의 한 부분으로서 교통흐름에 적합한 교통신호제어가 필요하며 이를 위해 많은 교통정보를 실시간으로 수집하여야 한다. 이러한 교통정보의 수집은 도시운영을 위하여 최첨단 정보통신 서비스가 제공되는 u-City에서는 어렵지 않을 것이다. 이러한 미래지향적인u-City의 ITS 교통제어에 적합한 새로운 시스템에 대하여 이 논문에서는 연구하였다.

• 한국태양에너지학회 논문집
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• 제26권3호
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• pp.111-117
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• 2006

Song-do City is a newly constructed city built on land reclaimed from the seaside and the surrounding area. Its development involved a long process since the basic plans for reclamation of the publicly owned seaside area in Song-do were drawn up in September 1979. However, if we take a look at the overall status of the project as it is carried on at present, it is hard to deny that the project is trapped inside the same legal restrictions as are all other existing cities, which permits Song-do City to meet only very minimum standards. This study intends to analyze and assess the Song-do City's environmentally friendly construction and to rate its current development status, exposing any problems and offering alternative solutions. In this paper, the current state of constructions in Song-do City were reviewed. Then a quantitative analysis and assessment for the Song-do City constructions of apartments, complex buildings, office buildings, and school facilities were conducted by using green building certification criteria. Finally the synthetic results of environmental performance evaluation for Song-do city constructions and follow-up suggestions were described.

• 한국환경보건학회지
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• 제21권4호
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• pp.63-74
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• 1995

The objective of this study were to identify the state of re. cognition and attitude of residents in Seoul city about air environment and to identify factors affecting attitude toward air environment. Study object was residents in Seoul city sampled by multistage random proportional sampling. Sample size was 0.0067%(500 persons) of total residents in Seoul city. The results were divided into two parts: (1) descriptive results of recognition and attitude toward air environment, (2) results of factor analysis to classify categories of attitudes toward air environment and regression analysis to identify factors affecting attitude toward air environment. Most of resident in Seoul city recognized that air environment in Seoul city was highly polluted and was not satisfactory. Experience of damage of air pollution was reported in about 70% of residents in Seoul city. More than 60% of residents in Seoul city had concern about air environment. Attitude toward air environment were classified into four categories using factor analysis: Necessity of intervention of local government for air environment conservation, Participation of residents and enterprises for air environment conservation, Optimistic attitude about air pollution, Preference of economy. Factors affecting the above attitudes were knowledge about air pollution, knowledge about policies and institutions related air environment conservation, concern about air environment, educational level, subjective assessment of air environment, sex, marital status. In conclusion this study suggested providing information of air environment in Seoul city to the residents and to educating residents for making positive attitude about air environment conservation.

• 한국측량학회지
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• 제27권5호
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• pp.607-617
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• 2009

최근 들어 u-City 사업의 활성화와 함께 도시의 핵심 인프라를 구성하는 각종 지상 및 지하시설물에 대한 체계적이며 효율적인 관리에 대한 필요성이 높아지고 있다. u-City에서 제공되는 다양한 서비스들이 도시의 물리적 환경, 즉 도시시설물의 위치 및 상태와 밀접하게 연관되어 있다는 점을 고려할 때 정확한 시설물 관련 정보의 수집과 이를 바탕으로 한 시설물의 정상상태 유지가 도시시설물 관리의 핵심이라 할 수 있다. 본 논문에서는 기존 지하시설물 관리시스템에 대한 분석을 바탕으로 지하시설물에 대한 정확한 상태 파악에 필요한 센서 및 객체 정보의 수집 방법을 살펴보고 이를 기반으로 한 지하시설물 관리시스템의 구축 방안을 제시하였다. 또한 프로토타입 시스템을 활용한 시나리오 테스트를 통하여 제시된 방안의 활용성을 검증하였다.

• 한국환경농학회지
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• 제41권3호
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• pp.177-184
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• 2022

BACKGROUND: Recently, the inflow of nonpoint pollutants into rivers caused by rapid urban and industrialization promotes the proliferation of algae, which causes eutrophication of rivers. This study was conducted to evaluate the seasonal variation of water quality characteristics and cryptomonads growth in the Oncheon River. METHODS AND RESULTS: The water quality and distribution characteristics of cryptomonads in the Oncheon River were investigated monthly for 12 months from January 2021. The cell number of cryptomonads was intensively developed in January-April, and it decreased sharply in the summer with heavy rainfall. In particular, cryptomonads moved to the downstream side of the river depending on the time, and as a result, significant differences were shown for each investigation point. The Korean trophic state index (Tsi_KO) in Oncheon River was classified as eutrophy all year round, indicating that cryptomonads can grow year-round. Distribution characteristics of cryptomonads in Oncheon River showed high correlations with DO (r=0.678), BOD (r=0.826) and chlorophyll-a (r=0.613) in water. CONCLUSION(S): In order to reduce cryptomonads in the Oncheon River, it is judged that a complex countermeasure considering the residence time, insolation and precipitation along with water quality factors is required.

• 한국진공학회:학술대회논문집
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• 한국진공학회 1998년도 제16회 학술발표회 논문개요집
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• pp.165-165
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• 1998