최근 기후변화와 도시화의 영향으로 도시침수 위험이 증가함에 따라, 실시간 모니터링 기반의 비구조적 대응체계 구축 필요성이 확대되고 있다. 본 연구에서는 도시배수관망의 수위 패턴 유사성과 침수 취약성을 동시에 고려한 최적 수위계 배치 방법론을 제안하였다. 연구대상지역 을 대상으로 EPA-SWMM 모형을 구축하고, 12개의 설계 강우 시나리오에 대한 모의를 수행하여 월류 발생 주요 지점을 도출하였다. 이후 관망의 위상 연결성을 고려한 공간 그룹화와 Dynamic Time Warping(DTW) 기반 수위 시계열 유사성 분석을 수행하였으며, 이를 침수흔적까지의 거리와 결합한 다목적 파레토 최적화를 통해 최적 후보 지점을 선정하였다. 또한 설치 개수 제한 및 설치 배제 반경(200 m) 제약조건을 적용하여 최종 수위 모니터링 지점을 도출하였다. 분석 결과, 16번, 27번, 31번 및 52번 맨홀이 최적 수위계 설치 지점으로 선정되었다. 본 연구는 수리적 거동 특성과 공간적 침수 취약성을 통합적으로 고려한 수위계 배치 방법론을 제시함으로써 도시침수 모니터링 및 예⋅경보 체계 구축을 위한 기초 자료로 활용될 수 있을 것으로 판단된다.

Animal pattern recognition from nighttime grayscale images is crucial for wildlife protection and ecological monitoring. Most of the current models suffer from a large parameter scale, making them unsuitable for deployment in resource-constrained environments. To address this challenge, this study proposes a multi-layer knowledge distillation approach based on the teacher Convnext model to improve the lightweight student model's classification performance effectively. Experimental results show that the parameters of the distilled CifarResNet20 model are only 0.27M, and the accuracy is 88.76%, which is superior to the traditional single-layer distillation and another tiny student model. The study confirms the efficiency and practical value of the proposed method in practical applications such as ecological monitoring.

The study concentrates on the status of ecological environment development in Shenyang, uses the remote sensing images and social statistics in different periods as the data base, establishes a dynamic monitoring system and model of urbanization and ecological security. Through the identification and quantitative analysis of ecological security dynamic monitoring information, with the support of spatial information technology, we have formed a key technology system which combines ecological security warning with ecological security structure optimization. Moreover, the spatial database of ecological key elements in Shenyang city was constructed. The vertical pattern, horizontal pattern and ecological function of urban ecological system is organically combined, which provides the basic data for the layout and regulation of green space and water system. With these efforts, a key technology system is formed, including the warning of urban ecological security- the space regulation of economic development- the optimization of urban ecological security pattern - the regulation of urban elements' spatial layout. The research results provide scientific and accurate data base for ecological planning and regulation in Shenyang City , carry out effective ecological security monitoring and management for the development of Shenyang, protect the ecological integrity of the system as well as the healthy development of the economy in Shenyang City during the urbanization process .

This paper deals with the production plan for the foaming process, the core part of the refrigerator manufacturing process. In accordance with this change, the refrigerator manufacturing process has also been converted into the mixed-model production system and it is necessary to optimize the production release pattern for the foaming process. The pattern optimization is to create a mixed-model combination which can minimize the number of setup operations and maintain mixed-model production. The existing method is a simple heuristic that depends on the demand priority. Its disadvantages are low mixed-model configuration rate and high setup frequency. Therefore, demand partitioning occurs frequently. In this study, we introduce the tolerance concept and propose a new pattern optimization algorithm based the large neighborhood search (LNS). The proposed algorithm was applied to a refrigerator plant and it was found that mixed-model configuration rate can be improved without demand partitioning.

This research was conducted to configure an optimal membrane module system that would selectively separatehazardous gases which are emitted during the processes in the semiconductor industry. In order to identify the most integralcharacteristic results, a numerical analysis formula which incorporates the dimensions of pipe diameter and gas flow ratewas utilized. Based on the results of the numerical analysis formula, a prototype designed with the main pipe being 100Awith gas outlets made with identical diameter thickness to the main pipe, set at equal intervals, was built. When the gasflow rate is set at 100L/min, although the processing outlets 1, 2, and 3 showed 0.03m/sec deviations in the rate ofspeed, when considering the variables of the average flow rate, the same emission rates are noted. However, in the instanceof when the overall prototype pipe dimensions was enlarged to 200A and the gas flow rate was increased to 500L/min,there was better stabilization. Therefore concluding that as the pressure rates flowing in the main pipe increases, morestable characteristics at the gas outlets can be found.