PURPOSES : The evaluation of the low-temperature performance of an asphalt mixture is crucial for mitigating transverse thermal cracking and preventing traffic accidents on expressways. Engineers in pavement agencies must identify and verify the pavement sections that require urgent management. In early 2000, the research division of the Korea Expressway Corporation developed a three-dimensional (3D) pavement condition monitoring profiler vehicle (3DPM) and an advanced infographic (AIG) highway pavement management system computer program. Owing to these efforts, the management of the entire expressway network has become more precise, effective, and efficient. However, current 3DPM and AIG technologies focus only on the pavement surface and not on the entire pavement layer. Over the years, along with monitoring, further strengthening and verification of the feasibility of current 3DPM and AIG technologies by performing extensive mechanical tests and data analyses have been recommended. METHODS : First, the pavement section that required urgent care was selected using the 3DPM and AIG approaches. Second, asphalt mixture cores were acquired from the specified section, and a low-temperature fracture test, semi- circular bending (SCB) test, was performed. The mechanical parameters, energy-release rate, and fracture toughness were computed and compared. RESULTS : As expected, the asphalt mixture cores acquired from the specified pavement section ( poor condition – bad section) exhibited negative fracture performances compared to the control section (good section). CONCLUSIONS : The current 3DPM and AIG approaches in KEC can successfully evaluate and analyze selected pavement conditions. However, more extensive experimental studies and mathematical analyses are required to further strengthen and upgrade current pavement analysis approaches.

효율적인 산림관리와 경영이 이루어지기 위해서는 일정한 공간단위를 가지는 산림의 구획(Zoning)이 정의되어야 한다. 현재 국유림은 임･소반 기준으로, 공･사유림은 필지 단위를 기준으로 공간을 구획하여 활용하고 있다. 이러한 이원적인 공간구획체 계는 통일된 산림계획, 경영, 관리가 어려우며 장기적인 공간단위의 정보 구축과 생성, 관리에도 어려움을 끼칠 수 있다. 이에, 본 연구에서는 DEM(Digital Elevation Model) 기반으로 추출한 산줄기 유역을 소개하고 활용성 검토를 위해 현재 산림관리 단위인 임･소반도, 경영계획구, 산지/산림 관련 주제도와 중첩 분석을 수행하였다. 이를 통해 표준산림관리단위의 대안으로 제안한 각 규모별 산림유역 단위의 공간적 적합성을 검토하고 산림관리, 산림 디지털 공간자료 구축 및 관리 등의 분야에서 산줄기 내포 유역 기반 표준산림관리단위의 활용 방안을 제안하였다.

이 연구는 국가 위기관리체계 중 통합방위사태와 경계태세의 발령기준 을 개선하기 위해 분석하였다. 우리 정부와 군은 평시 북한의 침투 및 도발과 같은 상황에 대응하기 위해 경계태세 및 통합방위사태와 같은 국 가 위기관리체계를 지속 발전시켜 왔다. 그러나 북한의 도발 상황을 고 려하여 통합방위사태와 경계태세가 시기적절하게 선포 및 발령되어야 함 에도 불구하고 그렇지 못한 사례가 여럿 있다. 따라서 통합방위사태 선 포절차와 경계태세의 발령조건을 반드시 개선할 필요성이 있다. 이를 위 해 기존 선행연구 사례를 통해 공통적인 연구의 경향들을 분석하였고, 위와 같은 문제가 발생하는 원인을 관련 법령 분석을 통해 연구문제를 도출하였다. 또 과거 위기대응사례를 분석하여 연구문제에 대한 결론을 내림과 동시에 발전 방향을 제시하였다. 이를 통해 본 논제가 주는 함의 는 첫째, 북한의 태도가 급변하여 예측할 수 없는 군사적 도발을 하더라 도 유연하게 대응하고 신속하게 대처할 수 있는 위기관리태세를 갖추어 야 한다는 것이며 둘째, 이러한 적시적인 위기관리를 통해 정부는 우리 국민들의 안전을 수호하는 역할을 수행해야 한다는 점을 시사하고 있다.

Recently, in Korea, if a very large forest fire occurs due to the people’s carelessness, it is of great interest because it spreads into a large forest fire. If a wildfire spreads and becomes large, it will inflict great damage (appointment and property), and the damage is irreversible. The best way to extinguish a wildfire is to prevent it before it occurs. If a forest fire occurs due to a failure in prevention, the early firefighting activities to prevent the progress of the forest fire by promptly dispatching it by reporting it and approaching the site as soon as possible should now be managed with a systematic integrated management system. To do so, it is necessary to prepare a preventive system, such as issuing warnings for each weather condition by the Korea Forest Service, consisting of cooperation (support) activities for forest fire prevention by related organizations, etc. In order to minimize the loss of precious lives and forests, measures have been taken to establish a system, to establish a prompt and accurate situation reporting system, and to establish an integrated command system (ICS) for on-site commanders.

In system design, it is not always possible that all decision makers can cooperate fully and thus avoid conflict. They each control a specified subset of design variables and seek to minimize their own cost functions subject to their individual constraints. However, a system management team makes every effort to coordinate multiple disciplines and overcome such noncooperative environment. Although full cooperation is difficult to achieve, noncooperation also should be avoided as possible. Our approach is to predict the results of their cooperation and generate approximate Pareto set for their multiple objectives. The Pareto set can be obtained according to the degree of one's conceding coupling variables in the other's favor. We employ approximation concept for modelling this coordination and the mutiobjective genetic algorithm for exploring the coupling variable space for obtaining an approximate Pareto set. The approximation management concept is also used for improving the accuracy of the Pareto set. The exploration for the coupling variable space is more efficient because of its smaller dimension than the design variable space. Also, our approach doesn't force the disciplines to change their own way of running analysis and synthesis tools. Since the decision making process is not sequential, the required time can be reduced comparing to the existing multidisciplinary design optimization. This approach is applied to some mathematical examples and structural optimization problems.

When evaluating the extent of the impact of water pollutants on the surrounding area, we would like to present the target level (proposal) of the quality of the environment, which is the standard for evaluation. We propose the environmental quality target level for substances that need to be applied domestically by investigating overseas cases operating the integrated environmental management system and the implications of domestic environmental pollutant management. The appropriateness of the environmental quality target level reviewed in this study was determined using data from the water quality measuring network, and future improvement measures were proposed. We review the available methodologies for setting quality objectives for the environment. It proposed the environmental quality target level for 21 substances that have domestic water pollutant emission standards and do not have environmental standards, and proposed future improvement measures. If it is necessary to add quality target-level items of the environment in the future, it is believed that expansion will be possible based on the methodology presented in this study.

본 연구는 초등학교 비만아동을 위한 통합비만관리프로그램을 개발․적용하여 비만지수, 생활습관 및 자기효능감에 미치는 영향을 파악하기 위한 비동등성 대조군 사전․사후설계이다. 연구대상자는 초등학교 4～6학년 아동으로 실험군 30명과 대조군 28이었다. 통합비만관리프로그램은 교육프로그램 주 1회, 운동프로그램 주 3회로 구성하여 8주간 실시되었다. 수집된 자료는 chi-square test, independent t-test, repeated measure ANOVA를 사용해 분석하였다. 연구결과 실험군에서 체질량지수는 25.83kg/m2에서 24.82kg/m2로 감소하였고(p<.05), 체지방률은 대조군에 비해 감소하였으며(p<.05), 비만도도 개선되었다 (p<.01). 그러나 근육량은 유의한 변화가 없었다. 중재 후 생활습관(p<.05)), 식이 자기효능감(p<.001), 운동 자기효능감(p<.05)은 향상되었다. 이를 통해 본 연구의 통합비만관리프로그램은 초등학교 비만아동들의 비만도와 비만을 감소시키는 생활습관 개선 및 자기효능감 증진에 효과적인 간호 중재임이 확인되었다.

Currently, the commercialization of the 5th Generation (5G) service is becoming more prevalent in domestic communication network technology. This has reduced communication delay time and enabled large-capacity data transmission and video streaming services in real-time. In order to keep pace with these developments, K-water has introduced a smart process control system in water purification plants to monitor the status of the water purification process. However, since wireless networks are based on the public Long Term Evolution (LTE) network, communication delay time remains high, and high-resolution video services are limited. This is because communication networks still have a closed structure due to expense and security issues. Therefore, with 5G in its current form, it is very difficult to accommodate future services without improving the infrastructure of its communication networks. In recognition of these problems, this study implemented the authentication and management function of wireless networks on a wired network management system in the K-water Bansong water purification plant. The results confirmed that wired Local Area Network (LAN) services give a higher security performance than an expensive commercial wireless LAN system. This was achieved by using an Internet Protocol (IP) address management system of wired networks and the packet filtering function of the Layer2 (L2) switch. This study also confirmed that it is possible to create a wireless LAN service that is 3.7 times faster than the existing LTE communication network.

보호관찰과 갱생보호는 그 역사적 맥락을 달리하고 있다. 갱생보호는 응보형주의의 형벌 체계 하에서부터 존재하였던 것이고, 보호관찰은 목적형주의가 등장하면서 비교적 새롭게 도입된 것이다. 현행 법무부 직제 하에서는 갱생보호를 보호관찰을 집행하는 과정에서 보호관찰에 부수하여 보호관찰의 실효성을 높이기 위한 수단으로 쓰고 있는 것으로 파악된다. 교정기관에서의 교정 기간과 보호관찰 기간은 그리 길지 않을 수 있지만, 출소자가 다시 범죄를 저지르지 않도록 하는 관리 기간은 상당히 오랜 시간이 소요되는 일이다. 따라서 실질적인 재범의 예방은 출소자의 사회 복귀가 얼마나 성공적으로 이루어졌느냐에 달려있다고 볼 수 있다. 그런 면에서 갱생보호의 중요성은 교정과 보호관찰에 비해 작다고 할 수 없으며 실질적 재범 예방의 바로미터는 갱생보호의 성공과 그 지속에 있다고 해도 과언이 아니다. 원래부터 민간 차원의 자원봉사와 사회복지에 그 뿌리를 두고 있던 갱생보호는, 국가형벌권의 행사이자 권력 작용인 교도소 운영과 보호관찰의 운영도 민영화하는 현재의 상황에서 더욱 더 민간으로 이양되어 운영될 것으로 보인다. 영국의 사례에서 알 수 있는 것은 영국은 정부 규모를 축소하는 정책으로 인하여 보호관찰과 더불어 교도소의 운영까지도 민간에게 넘기고 있다는 것이다. 아직까지는 비영리 민영교도소인 소망교도소 1곳이 운영되고 있을 뿐이고, 보호관찰도 국가에서 담당하고 있으며, 갱생보호에 대해서도 대부분의 갱생보호를 공법인인 한국법무보호복지공단에서 제공하고 있는 우리나라의 현실에 비추어볼 때 지금 우리나라는 갱생보호를 국가의 권력작용인 보호관찰과 쌍을 이루어 운영할지 아니면 민간차원의 사회복지사업으로 운영할지의 갈림길에 서 있다고 할 수 있다.

For economic evaluation of integrated operation to sewage facilities, benefit-cost analysis was performed to watershed sewage works project in 7 watershed areas, 156 facilities. In this study, the cost before and after integrated operation was compared and benefits are calculated from the reduction of operators, increasement treated pollution loads, reduction cost through operation convenience, reduction water consumption through effluent reuse, and improvement of life benefit. The result showed that cost was 8,500million won and benefit was 16,747million won, so benefit was 49% higher than cost. B/C analysis result showed that B/C ratio was 1.97 and it is similar to other researches. The benefits of integrated operation included convenience of data management, increase of emergency response, decrease of complains with sewage which was not reflected numerically, so the benefits of integrated operation were expected much greater than this result.

The main point of this study is to find out duplicates and differences among various regulations from different organizations. Also, it focuses on creating a reasonably unified regulation system to standardize safety & environment management. In this study, I analyzed the commonalities and the differences of two systems which are typical korean Process Safety Management System and off-site Consequence Analysis. It is confirmed that there are 25 species of overlapped material of those two systems and assessment like handling material information, facilities lists, hazardous substances and list of machine power. Process safety report focuses on onsite workers and facility protect. On the other hand, off-site Consequence Analysis focuses on design, arrangement and management of handling facility from off-site influence. I found difference two system of Enforcement purposes and way. Contradiction of Harmful information of Chemicals Control Act and occupation safety and health acts from same material. To be specific, There are no unit rule of occupation safety and health acts. so it permit inch, psi etc. But Chemicals Control Act provides that m, Mpa units. Therefore, Each regulatory duplication of items for chemicals management, standardization is writing so that you can coordinate overlapping items in the measures the need to be presented.