• Journal of information and communication convergence engineering
• /
• 제9권4호
• /
• pp.379-384
• /
• 2011

The scope of the problems that could be solved by monitoring and the improvement of the recognition time is directly correlated to the performance of the management function of the business process. However, the current monitoring process of business activities decides whether to apply warnings or not by assuming a fixed environment and showing expressions based on the design rules. Also, warnings are applied by carrying out the measuring process when the event attribute values are inserted at every point. Therefore, there is a limit for distinguishing the range of occurrence and the level of severity in regard to the new external problems occurring in a complicated environment. Such problems cannot be ed. Also, since it is difficult to expand the range of problems which can be possibly evaluated, it is impossible to evaluate any unexpected situation which could occur in the execution period. In this paper, a process-evaluating model based on the goal scenario is suggested to provide constant services through the current monitoring process in regard to the service demands of the new scenario which occurs outside. The new demands based on the outside situation are analyzed according to the goal scenario for the process activities. Also, by using the meta-heuristic algorithm, a similar process model is found and identified by combining similarity and interrelationship. The process can be stopped in advance or adjusted to the wanted direction.

• 한국산업융합학회 논문집
• /
• 제25권6_1호
• /
• pp.927-939
• /
• 2022

This study was conducted to develop a Web-GIS based monitoring module of smart city that can effectively respond, manage and improve situation in all stages of illegal dumping management on a city scale. First, five technologies were set for the core technical elements of the module configuration. Five core technical elements are as follows; video screening technology based on motion vector analysis, human behavior detection based on intelligent video analytics technology, mobile app for receiving civil complaints about illegal dumping, illegal dumping risk model and street cleanliness map, Web-GIS based situation monitoring technology. The development contents and results for each set of core technical elements were evaluated. Finally, a Web-GIS based 'illegal dumping monitoring module' was proposed. It is possible to collect and analyze city data at the local government level through operating the proposed module. Based on this, it is able to effectively detect illegal dumpers at relatively low cost and identify the tendency of illegal dumping by systematically managing habitual occurrence areas. In the future, it is expected to be developed in the form of an add-on module of the smart city integration platform operated by local governments to ensure interoperability and scalability.

• Toxicological Research
• /
• 제18권2호
• /
• pp.205-213
• /
• 2002

This study was undertaken to develop a subacute murine model for predicting occurrence of systemic anaphylaxis and to evaluate efficacy of various immunological parameters as the monitoring indices for the occurrence of anaphyalxis. The murine anaphyalxis model was developed through intraperitoneally sensitizing 100 $\mu\textrm{g}$ ovalbumin (OVA) in the presence of 1 mg alum and 300 ng cholera toxin twice a week interval followed by challenging 500 $\mu\textrm{g}$. OVA intravenously. Typical anaphylaxis symptoms were demonstrated at the both BALB/c mice, a strain prone to type-2 response, and C57BL/6 mice. a strain prone to type-1 response. Level of plasma histamine was approximately 50-fold or 30-fold higher in the mice sensitized with OVA than the mice sensitized with alum plus cholera toxin or the saline-treated mice after OVA challenge, respectively. Sensitization and challenge with OVA significantly enhanced plasma leukotriene $B_4$ level but not IgE levels in comparison with the control mice, which indicated the role of leukotriene $B_4$ for progression of anaphyalxis. Furthermore, among mice suffered from anaphylaxis, levels of OVA-specific IgGl were significantly higher in the BALB/c mice than in the C57BL/6 mice, which implied the genetic susceptibility for the induction of systemic anaphylaxis. Conclusively, simultaneous evaluation of histamine, leukotriene $B_4$, and allergen-specific IgG isotype may serve as more efficient monitoring tool for vaccine-related anaphyalxis.

• 한국동물위생학회지
• /
• 제42권2호
• /
• pp.53-60
• /
• 2019

This study was performed to investigate antimicrobial resistance in bacterial isolates obtained from companion dogs in veterinary hospitals and an animal shelter in Incheon. Drug resistance was examined respectively with the isolates of Escherichia coli, Enterococcus faecalis, and Staphylococcus pseudintermedius. The prevalence of drug resistance was calculated for each bacterial species towards 163 E. coli isolates, 156 E. faecalis isolates, and 86 S. pseudintermedius isolates by using selected antimicrobials. E. coli isolates were highly resistant to ampicillin, ciprofloxacin and tetracycline (47.9%, 28.2% and 28.2%, respectively). E. faecalis isolates were highly resistant to quinupristin-dalfopristin, tetracycline, kanamycin, rifampicin (69.8%, 66.0%, 53.8% and 51.9%, respectively). Higher levels of resistance were detected for ampicillin, penicillin, tetracycline, erythromycin, trimethoprim/sulfamethoxazole, telithromycin in S. pseudintermedius isolates (83.7%~52.6%, respectively). Occurrence of methicillin-resistant S. pseudintermedius (MRSP) was confirmed by oxacillin disc diffusion method, resulted in 23.3% occurrence among the S. pseudintermedius isolates (20/86 strains). The occurrence ratio of multidrug-resistance in the isolates of E. coli, E. faecalis, and S. pseudintermedius was 34.5%, 56.9%, and 67.9%, respectively. In this study, higher levels of antimicrobial drug resistance were observed in bacterial isolates obtained from dogs in Incheon. A regular monitoring and surveillance program should be implemented to prevent the emergence and spread of the drug-resistant bacteria carried in companion dogs.

• Journal of Ecology and Environment
• /
• 제38권3호
• /
• pp.353-360
• /
• 2015

A survey of weed occurrence was conducted to identify problematic weed species in a horticultural crop field to get basic information for effective weed control. Surveys of weed species occurring in horticultural crop fields (garlic, onion, red pepper and Chinese cabbage) were conducted in Chungnam province of Korea from April to October in 2014. A total of 516 sites of the 17 regions were identified as having 114 weed species belonging to 32 families. The most dominant weed species in the horticultural crop fields were Chenopodium album var. centrorubrum (8.83%), followed by Digitaria ciliaris (5.71%), Conyza canadensis (5.46%) and Capsella bursa-pastoris (4.67%). Specifically, as a result of this study, the occurrence of 35 species of exotic weeds, such as Chenopodium album and Taraxacum officinale, were confirmed. Almost 68% of the investigation sites was determined under dominance value 1 (range of cover < 10; numerous individuals) by Braun-Branquet cover-abundance scale, indicating a proper weed control in horticultural crop field. As a result of scientific and technological advances, an improved cultivation method is changing the weed occurrence in agricultural land. Additional research needs to be undertaken for the development of weed control methods through such periodic monitoring of occurrence of weeds.

• 한국산림과학회지
• /
• 제110권2호
• /
• pp.280-288
• /
• 2021

소나무재선충병의 발생 특성을 이해하는 것은 소나무재선충병의 피해 및 확산을 최소화하기 위한 방제전략 수립을 위해 필수적이다. 따라서 본 연구에서는 기상 요인, 지리적 요인, 그리고 인위적 요인과 같은 환경 조건과 소나무재선충병 발생과의 관계를 분석하였다. 2016년 5월부터 2018년 4월까지 소나무재선충병 발생 자료와 자연적, 인위적 요인들을 포함한 다양한 환경 조건의 공간 자료들을 수집하였고, 소나무재선충병에 의한 고사목 발생 본 수에 대한 환경 변수들의 상대적 기여도를 평가하였다. 총 17개의 자연적 요인과 인위적 요인 중에서 소나무재선충병 발생에 영향을 미치는 요인들을 확인한 결과 자연적 요인은 고도와 5~8월 기온이, 인위적 요인은 도로와 건물과의 거리가 소나무재선충병 감염고사목 발생본수와 밀접하게 연관이 있는 것으로 나타났다.

• 한국해양환경ㆍ에너지학회지
• /
• 제15권2호
• /
• pp.89-100
• /
• 2012

본 연구는 서해안 일대의 국가 해양쓰레기 모니터링 구역을 대상으로 외국기인 해양쓰레기의 발생 특성과 해양 환경의 변화에 따른 시기별 변화를 파악하고자 하였다. 서해안으로 유입되는 외국 기인 해양쓰레기는 제주 차귀도(5,112개)가 가장 많았으며, 다음은 진도 하조도(1,967개), 신안 임자도(507개) 순으로 조사되었다. 대부분 부유성이 높은 플라스틱 제품으로 플라스틱 음료수병(2,925개)이 가장 많은 양을 차지하였다. 시기별 발생량은 주로 7월, 9월에 집중되었으며, 이 시기의 해양 환경을 분석한 결과, 해상풍의 주풍향은 남풍 또는 남동풍 계열이 지배적이었다. 해수 표층 흐름의 경우 중국 연안을 따라 남하하는 해수의 흐름과 동중국해로부터 북상하는 해수 흐름의 유입이 우세하게 나타났다.

• 지질공학
• /
• 제10권2호
• /
• pp.79-97
• /
• 2000

우리나라의 최근 지진발생 추이를 보면 본격적인 게기지진관측을 시작한 1978년부터 1982년까지는 활성기 라 할 수 있으며 1983년부터 1991년까지는 조용하다가 1992년부터 지진발생 횟수가 크게 증가하는 것으로 나타나고 있다. 한편 우리나라의 계기지진관측은 1905년 일본에 의하여 시작되었는데 1943년까지 관측이 되다가 행방과 동란 등 사회적 격동기를 거치면서 관측이 중단되었다. 그후 1963년에 세계표준지진관측망의 설립에 의해서 관측이 재개되었는데 1978년 홍성지진을 계기로 본격적인 지진관측시대가 시작되었다. 기상청은 24시간 지진 및 지진해일 감시체계를 구축 운영하고있는데, 1997년부터 새로운 국가 지관측망 구축사업을 추진하고 있다. 이 사업의 결과 현재 지진관측망 27소, 가속도관측망 42소, 지진분석시스템과 수위측정계등을 설치 운영되고 있다. 앞으로 2001년까지 이를 더욱 확장하여 지진관측망을 31소로, 가속도관측망을 75소로 증성할 계획을 추진중이다.

• 한국가스학회지
• /
• 제19권2호
• /
• pp.20-28
• /
• 2015

화재를 예방하기 위해서는 그에 필요한 정책과 평가가 필요하며, 화재 발생에 대한 적절한 모니터링 기법이 있어야 한다. 이를 위해 품질관리의 기법중의 하나인 관리도를 화재 모니터링에 적용하는 연구가 진행된 바 있다. 그 결과, 통계적으로 겨울에는 많은 화재가 발생한다는 것이 증명되었고, 매년마다 어떤 주기를 띠고 변화한다는 것이 발견되었다. 그럼에도 불구하고, 여름철과 겨울철에 동일한 기준(관리한계선)을 적용할 경우 상대적으로 발생건수가 과다한 겨울에는 과도한 예방활동이 진행되고, 여름에는 잠재이상이 있는 경우에도 발생건수 감소에 따른 착시현상으로 인해 활동이 부족해질 가능성이 있다. 이때, 각 계절별로 다른 관리 한계선을 적용시킨다면 합리적인 예측과 보다 효과적인 이상 패턴의 모니터링이 가능해질 수 있다. 따라서 본 연구에서는 발생건수를 대상으로 시간에 따라 변하는 시계열 모델을 사용하여 화재발생 빈도 예측 모델계수의 체계적인 설정과정을 ARIMA 모델을 기반으로 제안하였다. 이를 바탕으로 화재발생 패턴의 개선된 분석과 이에 기반한 보다 체계적인 예방활동을 진행할 수 있을 것으로 기대한다.

• Smart Structures and Systems
• /
• 제23권2호
• /
• pp.107-122
• /
• 2019

As one of the most important parameters in structural health monitoring, structural frequency has many advantages, such as convenient to be measured, high precision, and insensitive to noise. In addition, frequency-change-ratio based method had been validated to have the ability to identify the damage occurrence and location. However, building a precise enough finite elemental model (FEM) for the test structure is still a huge challenge for this frequency-change-ratio based damage detection technique. In order to overcome this disadvantage and extend the application for frequencies in structural health monitoring area, a novel method was developed in this paper by combining the cross-model cross-mode (CMCM) model updating algorithm with the frequency-change-ratio based method. At first, assuming the physical parameters, including the element mass and stiffness, of the test structure had been known with a certain value, then an initial to-be-updated model with these assumed parameters was constructed according to the typical mass and stiffness distribution characteristic of shear buildings. After that, this to-be-updated model was updated using CMCM algorithm by combining with the measured frequencies of the actual structure when no damage was introduced. Thus, this updated model was regarded as a representation of the FEM model of actual structure, because their modal information were almost the same. Finally, based on this updated model, the frequency-change-ratio based method can be further proceed to realize the damage detection and localization. In order to verify the effectiveness of the developed method, a four-level shear building was numerically simulated and two actual shear structures, including a three-level shear model and an eight-story frame, were experimentally test in laboratory, and all the test results demonstrate that the developed method can identify the structural damage occurrence and location effectively, even only very limited modal frequencies of the test structure were provided.