• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.408-408
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• 2020

「하천법」제3조는 국가는 하천에 대한 효율적인 보전·관리를 위하여 하천에 관한 종합적인 계획을 수립하고 합리적인 시책을 마련할 책무를 지게 하고 있다. 현재 전국에는 총 5,937개의 하천이 존재하며 국가와 국민의 일상생활에 큰 기여를 한다. 국가하천의 경우 하천의 크기 및 지리적 위치 등의 측면에서 볼 때 지방하천, 소하천보다 주요한 역할을 수행하며, 국토교통부의 예산에서도 큰 비중을 차지하고 있다. 국토교통부의 2020년 예산서를 살펴보았을 때 '국토 및 지역개발' 예산 1조 1666억9600만원 중 76.53%를 차지하는 8928억7300만원이 '국가하천정비지원', '국가하천정비'에 활용된다. 이처럼 국가하천의 정비를 위해 매년 많은 예산을 투자하고 있으며 여러 사업을 수행 중에 있으나 사업종료 후 사업에 관한 적절한 평가는 이뤄지지 않고 있다. 국토부에서는 「하천에 관한 사무처리규정」에 따라 매년 6월 국가하천 제방정비에 관한 평가를 수행 중에 있으나, 이는 제방에 관한 평가만을 수행하며 사업 자체에 관한 평가는 이뤄지지 않고 있는 실정이다. 본 연구에서는 많은 예산과 관심이 집중되는 국가하천사업이 완료되고 난 후 사업에 관한 평가를 통해 각 사업별 비교·분석이 가능한 표준 평가기법을 개발하고자 하였다. 평가지표의 경우 사업이 진행되는 단계인 '기본계획수립 단계', '실시설계 단계', '시공 단계' 세 단계로 나누어 구성하였으며, 총점이 100점이 되도록 구성하였다. 평가기법의 경우 우선 국가하천사업을 중심으로 평가하도록 하였으나 추후 지방하천, 소하천사업에서도 활용될 수 있도록 개발하였다. 평가기법의 활용성을 검증하기 위하여 Test-bed 사업들을 대상으로 평가지표를 적용하였으며, 필요한 수정·보완사항을 도출하였다. 이러한 하천사업 사후 평가기술의 개발로 사업 간의 비교·분석이 가능해질것이며, 각 평가결과를 바탕으로 향후 하천사업의 계획, 설계 시 벤치마킹이 가능할 것으로 기대한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.9
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• pp.3284-3288
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• 2010

This experiment, through the use of Ear-Therapy by a Cylindrical bar, analyzed the change of adolescence brain function. For this experiment, from the months of Nov. until Dec. 2009, 41 subjects were selected students the experimental group 21, the comparison group 20 that adolescence lives in Kyonggi-do southern region. pre and post treatment were measured with a paired t-test. The results of study confirmed significant change of mental relaxation quotient. Therefore, this results show that Ear-Therapy is a effective for mental stress reduction and mental relaxation in adolescence brain function.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.2
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• pp.1-8
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• 2016

A convergence of finance and information technology brought a remarkable development in Fin-Tech industry. On the other hand, currently existing laws seemed inappropriate to address the liability of financial institutions, Fin-tech enterprises and consumers in case of financial accidents due to its ambiguity. The minimum insurance obligation by financial institutions specified under the Electronic Financial Transaction Act 2006 is not keeping with current reality, considering transaction volume, frequency of incidents, and security investments. This paper aims to lay stress on the need of cyber liability insurance by understanding the domestic financial incidents and management, and the limit of existing insurance policy.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.521-524
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• 2008

The main goal of construction projects from the past has been enhancing efficiency by reducing cost and time. Compared to this, it is true that for a long time not much attention was paid to safety management. For this reason, safety management is much behind cost and time management but nevertheless, not much improvement has been made. The current safety management is only focused on managing after an occurrence based on knowledge like safety standards and rules. Even though safety accident is reducing in domestic construction projects, the extent of a accident is getting greater because construction projects are getting more complex and sophisticated. Moreover, the actual loss due to accident is increasing and the severeness of a hazard is getting worse. Therefore, to improve the current conditions of safety management, we propose a more effective safety management program. This program is a safety managing method using virtual reality. Property, entity, safety library is applied and finally, aims to continuously manage and prevent rather than deal with an accident/disaster after it happens.

• Journal of Korea Water Resources Association
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• v.55 no.spc1
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• pp.1177-1185
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• 2022

The water and sewage system is an infrastructure that provides safe and clean water to people. In particular, since the water and sewage pipelines are buried underground, it is very difficult to detect system defects. For this reason, the diagnosis of pipelines is limited to post-defect detection, such as system diagnosis based on the images taken after taking pictures and videos with cameras and drones inside the pipelines. Therefore, real-time detection technology of pipelines is required. Recently, pipeline diagnosis technology using advanced equipment and artificial intelligence techniques is being developed, but AI-based defect detection technology requires a variety of learning data because the types and numbers of defect data affect the detection performance. Therefore, in this study, various defect scenarios are implemented using 3D printing model to improve the detection performance when detecting defects in pipelines. Afterwards, the collected images are performed to pre-processing such as classification according to the degree of risk and labeling of objects, and real-time defect detection is performed. The proposed technique can provide real-time feedback in the pipeline defect detection process, and it would be minimizing the possibility of missing diagnoses and improve the existing water and sewerage pipe diagnosis processing capability.

• Clean Technology
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• v.18 no.3
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• pp.229-249
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• 2012

At present, global warming and depletion of fossil fuels have been one of the big issues which should be solved for sustainable development in the future. CCS (carbon capture and sequestration) technology as the post $CO_2$ reduction technology has been considered as a promising solution for global warming due to increased carbon emission. However, the environmental and ecological effects of CCS have drawn concerns. There are needs for noble post reduction technology. More recently, CCU (carbon capture and utilization) Technology, which emphasizes transforming carbon dioxide into value-added chemicals rather than storing it, has been attracted attentions in terms of preventing global warming and recycling the renewable carbon source. In this paper, various technologies developed for carbon dioxide conversion both in gas and liquid phase have been reviewed. For the thermochemical catalysis in gas phase, the development of the catalytic system which can be performed at mild condition and the separation and purification technology with low energy supply is required. For the photochemical conversion in liquid phase, efficient photosensitizers and photocatalysts should be developed, and the photoelectrochemical systems which can utilize solar and electric energy simultaneously are also in development for more efficient carbon dioxide conversion. The energy needed in CCU must be renewable or unutilized one. CCU will be a key connection technology between renewable energy and bio industry development.

• Journal of Music and Human Behavior
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• v.1 no.1
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• pp.1-10
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• 2004

Being engaged in the musical tasks needs cognitive skills to perceive musical sound, organize them into meaningful unit, store them in the memory and retrieve them when needed. These skills are also required for academic tasks indicating that there is positive correlation between skills for musical and academic tasks. Based on these findings, the study purported to examine whether the developed sessions can enhance cognitive skills which is composed of auditory information skills, which is composed of perceiving sounds, organizing them into groups based on the existing information or organization pattern, and short-term memory skills. Eighteen elementary students in 4, 5, and 6th grades have participated in the study. The study has administered Music Cognitive Skills Test(MCST) before and after implementing music therapy sessions. The MCST consisted of five parts, first one measuring the rhythm imitating skills, second, measuring the melodic imitation skills, third, measuring discriminative skills in identifying higher pitch, fourth, measuring discriminative skills in identifying identical chords, and lastly, measuring the tone retention skills. The results indicated that there was statistical difference between the pre and post test in rhythm and melody imitation skills. Because reproduction of perceived rhythm patterns requires memory skills, imitating patterns are considered cognitive skills. Also melody is defined adding spatial dimension to the rhythm which is temporal concept. Being able to understand melodic pattern and to reproduce the pattern also requires cognitive skills. The subjects have shown significant improvement in these two areas. In other areas, there were definite increase of scores, however, no significant differences. The study also explores interpretation of these results and also observed consistencies among the participants in completing the musical tasks.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.750-753
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• 2017

Recently, the processing and utilization of big data, which is generated by the spread of smartphone, SNS, and the internet of things, is emerging as a new growth engine of ICT field. However, in order to utilize such big data, De-identification of personal information should be done. De-identification removes identifying information from a data set so that individual data cannot be linked with specific individuals. De-identification can reduce the privacy risk associated with collecting, processing, archiving, distributing or publishing information, thus it attempts to balance the contradictory goals of using and sharing personal information while protecting privacy. De-identified information has also been re-identified and has been controversial for the protection of personal information, but the number of instances where personal information such as big data is de-identified and processed is increasing. In addition, many de-identification guidelines have been introduced and a method for de-identification of personal information has been proposed. Therefore, in this study, we describe the big data de-identification process and follow-up management, and then compare and analyze de-identification methods. Finally we provide personal information protection issues and solutions.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.46 no.2
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• pp.27-35
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• 2009

A paradigm of medical industry is changing quickly to u-healthcare according to entry toward an aging society and improvement of quality of life(QoL). The change toward u-healthcare is meaningful since meaning of healthcare is redefined by prevention and management instead of medical service such as diagnosis of disease and treatment. However, the interest about u-healthcare is only concentrated to derivation of new healthcare service, development of medical measurement appliances(Sensors), and integration and standardization of medical information. Therefore, in this paper, the main ai of this study is trying to realize and implement u-healthcare technology through primary philosophies of ubiquitous composition such as Disappear Computing, Invisible Computing, and Calm Computing and development of user-centered technology.

• The Journal of the Korea institute of electronic communication sciences
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• v.15 no.6
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• pp.1113-1122
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• 2020

Recently, as violent crimes of crime without reason (Korea : Do not ask), women and the elderly are getting serious. In the existing system, many CCTVs are installed, but it is difficult to prevent crime due to only follow-up measures after a crime occurs. This device prevents crime through this device for incidents in shaded areas and closed spaces such as apartments and buildings. To do this, we research this technology to develop products and software. It sends an alarm signal using communication technology to a specific place where you want to receive an event of an alarm or a CCTV device operated using image analysis big data technology and convergence sensor technology for a specific target of the behavior expected to be a crime or movement. Develop the device. This development device researches and develops this device and supplies low-cost devices to consumers, which is used as a device that predicts the occurrence of crime in advance, processes it as an alarm signal in real time, and transmits it, and constitutes a standalone device and a server. Will provide the device to be connected.