• 한국ITS학회 논문지
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• 제8권3호
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• pp.42-51
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• 2009

우리나라는 고속도로 차로 수에 따라 차종별로 통행차로를 지정하는 제도를 운영하고 있으며, 그 동안 제도의 유효성 논란 속에 폐지와 운영을 반복하며 시행되고 있다. 본 논문에서는 제도의 유효성을 검증하기 위해 고속도로 10개 구간을 대상으로 차로통행방법 위반율과 교통사고와의 연관성을 분석하였다. 그 결과 양(+)의 상관관계가 있는 것으로 나타나 위반차량에 대한 적극적인 단속이 요구되며, 본 논문에서는 차량번호판의 영상인식에 기반한 자동단속시스템 구축 방안을 제시하였다.

• International Journal of Computer Science & Network Security
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• 제24권7호
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• pp.202-206
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• 2024

Health Related issues has become a savior diseases as growing rapidly they also causing savior issues if they not cure they lead to even death. Fatal Diseases needed to be controlled at early stages to save the patient lives. The Knowledge related to the disease is also important so that it may be cure as soon as possible and also medicine for the illness is also needed to be supplied immediately so that it can be controlled. Some patients also need a continuous monitoring like aged and someone suffering to some fatal disease .IOT based monitoring system with the application of the Raspberry pi and the usage of the Local Area Network to connect the Doctors, Hospital, and Ambulance service also the pharmacy help to start the treatment of the patient effectively. Also acknowledging the doctors and hospital staff will help to save the life of the patient due to knowledge of the disease. Usage such smart and reliable technology will help to monitor the health condition of the patient at home and also connecting with the doctors through the internet will also acknowledge the doctor about the present condition of the patient. This paper presents the effective use of the smart devices and technology to overcome the disease by using such cost effective technology.

• 한국중재학회지:중재연구
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• 제21권3호
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• pp.89-114
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• 2011

Environmental disputes not only possess the special characteristics of collectivity and plural value relativity but it also possesses the unique features of difficulty to prove cause and effect as well as the structural maldistribution of evidence and information. Therefore, the positive resolution of an environmental dispute can be brought about more easily with the Alternative Dispute Resolution (ADR) which can take the form of talks, compromises, as well as arbitration or mediation rather than through a trial process. Such being the case, this paper first looks into the problems and effectiveness of the arbitration system of environmental lawsuits and then takes an even closer look at Korea's environmental dispute arbitration system and finally offer some reform methods. In Korea, the environmental dispute arbitration system was implemented in 1991 and has been executed since then. Although this system does have positive features such as the high rate of coming to an agreement between the involved parties but unfortunately, most of the cases rely on decisions based on right and wrong which cannot but be far away from the intentions of the ADR system. It is heavily centered around claims regarding psychological compensation regarding noise and vibrations and the ratio of the actual amount of compensation is comparatively lower than the requested amount. In addition, with the limits in organization and manpower, it leads to a lack of professionalism as well as the problem of low usage with the low awareness rate. As reform measures against the aforementioned problems, this paper suggests the following. First, in order to activate the arbitration process more fully, it proposes aggressive usage of compulsory arbitration as well as submission to arbitration, while at the same time raising ADR professionals to fill in the missing gaps. Secondly, in order to overcome the problem of concentration of related cases, making representative lawsuits of environmental organizations would be a good idea. It also states that in order to make the compensation amount more realistic, it should go out of the across-the-board decision making process and reach a decision about the compensation amount that takes the individual situation's dispute into consideration. In order to boost the professionalism of the environmental dispute arbitration, it is necessary to reform the organization and manpower such as expanding the number of members of full standing, and increasing the professionalism of the examiners. Also, to increase the usage rate of the ADR system, the paper suggests stationing a civilian consultant regarding environment, or activating the compulsory arbitration which is the premise for public participation on the part of the residents.

• 한국토양환경학회지
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• 제2권1호
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• pp.13-20
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• 1997

1992년부터 1996년 까지 5년간 강원도에서 운영중인 18홀 이상 3개 골프장에 대하여 농약 사용실태와 농약 잔류량 등을 조사하였다 농약 잔류량은 3개 골프장의 토양, 잔디, 유출수등 총 186개 시료에 대하여 유기염소제 4종과 유기인제 12종을 GC-ECD와 GC-NPD를 이용해 분석 하였다. 각 골프장의 연 평균 농약 사용량은 1,635.6kg 이었고, 단위 면적당 농약 사용량은 그린 33g/$\textrm{m}^2$, 페어웨이 3g/$\textrm{m}^2$ 였다. 골프장 잔디에 사용 할 수 없는 미고시 농약은 186개 시료중 24개 시료에서 검출되었고, 검출율은 12.9% 였다. 토양에서 검출된 농약의 평균 잔류농도는 캡탄 0.208ppm, 퓨다코닐 0.031ppm 이었다. 미고시 농약의 연도별 검출율은 92년 이래 매년 감소추세에 있으며 96년에는 전혀 검출되지 않았다. 따라서 현행 미고시 농약 위주의 조사 방법은 고시농약중 많이 사용하는 농약을 검사 할 수 있도록 개선되어야 하며, 유출수에 대한 허용기준도 설정되어야 한다.

• 한국지능시스템학회논문지
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• 제21권4호
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• pp.407-413
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• 2011

본 연구에서는 가정용 전력 모니터링 시스템을 구현하고 실험가구에 적용하여 평가하였으며, 평가과정에서 확보한 기기별 전력 사용 패턴 정보를 이용하여 자동 기기 식별 알고리즘을 개발하였다. 실험가구에 적용해본 결과, 기기별 전력사용 정보와 월별 예상 사용량 정보가 전력 소비 절감에 도움이 된다는 응답을 얻을 수 있었다. 그리고 시스템을 보다 편리하게 사용하기 위해서는 설치의 편의성과 UI를 개선해야한다는 응답을 얻었다. 본 연구에서는 UI 개선을 위하여 일반냉장고, TV, 전기밥솥, 김치냉장고, 세탁기를 자동으로 식별하는 알고리즘을 구현하였다. 자동 장치 식별 알고리즘은 전력 모니터링 과정에서 수집한 전력 소비 패턴을 관찰하여 Zero-Crossing Rate(ZC), Variation of On State(VO), Slope of On State(SO), Duty Cycle(DC) 등 4가지 특징을 규정하여 이용하였으며, 특징을 적용하는 시간 구간은 기기가 동작하는 시간이 25% 이상이 되는 2시간 길이의 구간을 이용하였다. 제안된 알고리즘은 테스트 set에 동일한 기기를 포함하는 경우 82.1%의 성능을 얻을 수 있었다.

• ETRI Journal
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• 제32권2호
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• pp.273-280
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• 2010

The overall channel capacity of a multihop wireless path drops progressively over each hop due to the cascading effect of noise and interference. Hence, without optimal rate adaptation, the video quality is expected to degrade significantly at any client located at a far-edge of an ad-hoc network. To overcome this limitation, decoding and forwarding (DF), which fully decodes codewords at each intermediate node, can be employed to provide the best video quality. However, complexity and memory usage for DF are significantly high. Consequently, we propose syndrome-based partial decoding (SPD). In the SPD framework an intermediate node partially decodes a codeword and relays the packet along with its syndromes if the packet is corrupted. We demonstrate the efficacy of the proposed scheme by simulations using actual 802.11b wireless traces. The trace-driven simulations show that the proposed SPD framework, which reduces the overall processing requirements of intermediate nodes, provides reasonably high goodput when compared to simple forwarding and less complexity and memory requirements when compared to DF.

• ETRI Journal
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• 제19권4호
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• pp.344-362
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• 1997

The delay which is one of the quality of service parameters is considered to be a crucial factor for the effective usage of real-time audio and video streams in interactive multimedia collaborations. Among the various causes of the delay, we focus in this paper on the local delay concerned with the schemes which handle continuous inflow of encoded data from constant or variable bit-rate audio and video encoders. We introduce two kinds of implementation approaches, pull model and push model. While the pull model periodically pumps out the incoming data from the system buffer, the push model receives events from the device drivers. From our experiments based on Windows NT 3.51, it is shown that the push model outperforms the other for both constant and variable bit-rate streams in terms of the local delay, when the system suffers reasonable loads. We interpret this experimental data with M/G/1 multiple vacation queuing theories, and show that it is consistent with the queuing theoretic interpretations.

• ETRI Journal
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• 제35권4호
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• pp.677-686
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• 2013

In this paper, we first introduce a general architecture of an energy management system in a home area network based on a smart grid. Then, we propose an efficient scheduling method for home power usage. The home gateway (HG) receives the demand response (DR) information indicating the real-time electricity price, which is transferred to an energy management controller (EMC). Referring to the DR, the EMC achieves an optimal power scheduling scheme, which is delivered to each electric appliance by the HG. Accordingly, all appliances in the home operate automatically in the most cost-effective way possible. In our research, to avoid the high peak-to-average ratio (PAR) of power, we combine the real-time pricing model with the inclining block rate model. By adopting this combined pricing model, our proposed power scheduling method effectively reduces both the electricity cost and the PAR, ultimately strengthening the stability of the entire electricity system.

• 한국세라믹학회지
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• 제52권2호
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• pp.154-158
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• 2015

This paper investigates the reaction rates of $CO_2$ that stores carbonation through comparing the carbonation behavior between $Ca(OH)_2$ and fly ash with circulating fluidized bed combustion (CFBC) containing a large amount of free CaO. Because fly ash with CFBC contains abundant free CaO, it cannot be used as a raw material for concrete admixtures; hence, its usage is limited. Thus, it has been buried until now. In order to consider its reuse, we conduct carbonation reactions and investigate its rates. X-ray diffraction (XRD), thermogravimetric/differential thermal analysis (TG/DTA), and X-ray fluorescence (XRF) are conducted for the physical and chemical analyses of the raw materials. Furthermore, we use a PH meter and thermometer to verify the carbonization rates. We set the content of the fly ash of CFBC, $Ca(OH)_2$, $CO_2$ flow rate, and water to 100 ~ 400 g, 30 ~ 120 g, 700 cc/min, and 300 ~ 1200 g, respectively, based on the content of the free CaO determined through the TG/DTA analyses. As a result, the carbonization rate of the fly ash with CFBC is the same as that of $Ca(OH)_2$, and it tends to increase linearly. Based on these results, we investigate the carbonization behavior as a function of the free CaO content contained in the raw material.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1997년도 춘계학술발표회논문집(2)
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• pp.445-450
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• 1997

Self-Powered Neutron Detectors(SPNDs) are currently used to estimate the power generation distribution and fuel burn-up in several nuclear power reactors in Korea. In this paper, Monte Carlo simulation is accomplished to calculate the escape probability of beta particle as a function of their birth position fur the typical geometry of rhodium-based SPNDs. Also, a simple numerical method calculates the initial generation rate of beta particles and the change of generation rate due to rhodium burn-up. Using the simulation and the numerical method, the burn-up profile of rhodium density and the neutron sensitivity are calculated as a function of burn-up time in the reactor. The sensitivity of the SPNDs decreases non-linearly due to the high absorption cross-section and the non-uniform burn-up of rhodium in the emitter rod. In addition, for improvement of some properties of rhodium-based SPNDs which are currently used, this paper presents a new material. The method used here can be applied to the analysis of other types of SPNDs and will be useful in the optimum design of new SPNDs for long term usage.