• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제11권9호
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• pp.355-362
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• 2022

농업에 정보 통신 기술을 접목한 스마트팜은 단순한 생육 환경 모니터링에서 벗어나 작물 생육을 위한 최적의 환경을 발견하고 자율제어가 가능한 농업의 형태로 나아가고 있다. 이를 위해서는 관련 데이터를 수집하는 것도 중요하지만, 재배 경험과 지식을 가진 농업인 사용자들이 수집된 데이터를 다양한 관점에서 분석하여 작물 생육 환경 제어에 유용한 정보를 도출해야 할 필요가 있다. 본 연구에서는 작물 생육과 관련된 데이터를 가지고 필요한 정보를 얻고자 하는 농업인 사용자가 쉽게 데이터 분석을 할 수 있는 웹 서비스를 개발하였다. 개발한 웹 기반 데이터 분석 서비스는 데이터 분석을 위하여 R 언어를 사용하며 Node.js를 위한 익스프레스 웹 애플리케이션 프레임워크를 기반으로 개발하였다. 데이터 분석 서비스를 운영 중인 생육 환경 모니터링 시스템과 함께 적용해 본 결과 사용자는 웹 상에서 CSV 형식의 파일을 입력하거나 직접 데이터 입력함으로써 서버가 제공하는 데이터 분석을 위한 R 스크립트를 실행하여 데이터 분석을 수행할 수 있었다. 서비스 제공자는 다양한 데이터 분석 서비스를 쉽게 제공할 수 있었고, R 스크립트만 새로 추가하면 애플리케이션에 대한 수정 없이 새로운 데이터 분석 서비스 추가가 용이함을 확인하였다.

• International journal of advanced smart convergence
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• 제4권2호
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• pp.109-119
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• 2015

The interaction between wireless sensors such as Internet of Things (IoT) and Cloud is a new paradigm of communication virtualization to overcome resource and efficiency restriction. Cloud computing provides unlimited platform, resources, services and also covers almost every area of computing. On the other hand, Wireless Sensor Networks (WSN) has gained attention for their potential supports and attractive solutions such as IoT, environment monitoring, healthcare, military, critical infrastructure monitoring, home and industrial automation, transportation, business, etc. Besides, our virtual groups and social networks are in main role of information sharing. However, this sensor network lacks resource, storage capacity and computational power along with extensibility, fault-tolerance, reliability and openness. These data are not available to community groups or cloud environment for general purpose research or utilization yet. If we reduce the gap between real and virtual world by adding this WSN driven data to cloud environment and virtual communities, then it can gain a remarkable attention from all over, along with giving us the benefit in various sectors. We have proposed a Pub/Sub-based sensor virtualization framework Cloud environment. This integration provides resource, service, and storage with sensor driven data to the community. We have virtualized physical sensors as virtual sensors on cloud computing, while this middleware and virtual sensors are provisioned automatically to end users whenever they required. Our architecture provides service to end users without being concerned about its implementation details. Furthermore, we have proposed an efficient content-based event matching algorithm to analyze subscriptions and to publish proper contents in a cost-effective manner. We have evaluated our algorithm which shows better performance while comparing to that of previously proposed algorithms.

• Smart Structures and Systems
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• 제6권3호
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• pp.309-333
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• 2010

Civil infrastructure, in both its construction and maintenance, represents the largest societal investment in this country, outside of the health care industry. Despite being the lifeline of US commerce, civil infrastructure has scarcely benefited from the latest sensor technological advances. Our future should focus on harnessing these technologies to enhance the robustness, longevity and economic viability of this vast, societal investment, in light of inherent uncertainties and their exposure to service and even extreme loadings. One of the principal means of insuring the robustness and longevity of infrastructure is to strategically deploy smart sensors in them. Therefore, the objective is to develop novel, durable, smart sensors that are especially applicable to major infrastructure and the facilities to validate their reliability and long-term functionality. In some cases, this implies the development of new sensing elements themselves, while in other cases involves innovative packaging and use of existing sensor technologies. In either case, a parallel focus will be the integration and networking of these smart sensing elements for reliable data acquisition, transmission, and fusion, within a decision-making framework targeting efficient management and maintenance of infrastructure systems. In this paper, prudent and viable sensor and health monitoring technologies have been developed and used in several large structural systems. Discussion will also include several practical bridge health monitoring applications including their design, construction, and operation of the systems.

• 방사선산업학회지
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• 제17권4호
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• pp.359-367
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• 2023

In this study, the function and purpose of the disposal cover, which is an engineering barrier installed to isolate the disposal vault of the near-surface disposal facility for radioactive waste from natural/man-made intrusion, and the design details of the demonstration facility for performance verification were described. The Demonstration facility was designed in a partially divided form to secure the efficiency of measurement while being the same as the actual size of the surface disposal facility to be built in the Intermediate & low-level radioactive waste disposal site of the Korea Radioactive Waste Agency (KORAD). The instruments used for measurement consist of a multi-point thermometer, FDR (Frequency Domain Reflectometry) sensor, inclinometer, acoustic sensor, flow meter, and meteorological observer. It is used as input data for the monitoring system. The 3D monitoring system was composed of 5 layers using the e-government standard framework, and was developed based on 4 components: screen, control module, service module, and DBIO(DataBase Input Output) module, and connected them to system operation. The monitoring system can provide real-time information on physical changes in the demonstration facility through the collection, analysis, storage, and visualization processes.

• Journal of Information Processing Systems
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• 제13권3호
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• pp.476-490
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• 2017

In the centralized cloud controlled environment, the decision-making and monitoring play crucial role where in the host controller (HC) manages the resources across hosts in data center (DC). HC does virtual machine (VM) and physical hosts management. The VM management includes VM creation, monitoring, and migration. If HC down, the services hosted by various hosts in DC can't be accessed outside the DC. Decentralized VM management avoids centralized failure by considering one of the hosts from DC as HC that helps in maintaining DC in running state. Each host in DC has many VM's with the threshold limit beyond which it can't provide service. To maintain threshold, the host's in DC does VM migration across various hosts. The data in migration is in the form of plaintext, the intruder can analyze packet movement and can control hosts traffic. The incorporation of security mechanism on hosts in DC helps protecting data in migration. This paper discusses an approach for dynamic HC selection, VM selection and secure VM migration over cloud environment.

• 한국방재안전학회논문집
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• 제5권1호
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• pp.13-19
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• 2012

기후변화적응과 재해위험경감 관련 정보 및 기술을 공유하기 위한 글로벌 체계 구축이 연구목적이다. 체계는 아시아태평양국가들의 성과를 모니터링 하는 플랫폼, 예방및경감 기술들을 공유하기 위한 플랫폼, 이러닝 교육 플랫폼과 재해위험경감 주제 관련 정보 제공 플랫폼으로 구성된다. 아울러 플랫폼은 한국 전자정부 표준 기본구조를 채택하여 개발된다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권9호
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• pp.4089-4094
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• 2015

The purpose of the research was to determine the effect of home care service on the quality of life in patients with gynecological cancer. This randomized case control study was carried out in a womans hospital between September 2011 and February 2012. Women undergoing gynecological cancer treatment were separated into intervention and control groups, of 35 patients each. The intervention group was provided with nursing care service through hospital and home visits ($1^{st}$, $12^{th}$ weeks) within the framework of a specifically developed nursing care plan. The control group was monitored without any intervention through the hospital routine protocols ($1^{st}$, $12^{th}$ weeks). Data were collected using An Interview Form, Home Visit Monitoring Form and Quality of Life Scale/Cancer Survivors. Effects of home care service on the quality of life in gynecological cancer patients were investigated using chi-square tests, McNemar's test, independent t-test and ANOVA. This study found that the intervention group receiving home care service had a moderately high quality of life (average mean: $6.01{\pm}0.64$), while the control group had comparatively lower quality (average mean: $4.35{\pm}0.79$) within the 12 week post-discharge period (p<0.05). This study found home care services to be efficient in improving the quality of life in patients with gynecological cancer.

• 한국정보과학회논문지:시스템및이론
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• 제33권7호
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• pp.440-447
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• 2006

그리드 컴퓨팅과 같은 분산 시스템은 하드웨어와 소프트웨어 구성 요소들이 다양하고 복잡하며 분산 배치되어 있어 전체적인 관리가 어렵다. 그리드나 유비쿼터스처럼 환경적인 요소가 다양하며 유동적으로 변경될 가능성이 많은 시스템은 실시간으로 자원에 대한 정보를 모니터링하고 그에 따라 반응할 수 있는 메커니즘을 제공해야 한다. 모니터링 어플리케이션의 개발시 시스템 자원의 다양성은 정보를 수집하는 에이전트의 개발에 대한 비용 부담을 증가시킨다. 본 논문에서는 다양한 시스템 환경에서 추가적인 에이전트 개발의 부담을 최소화시키며 환경적인 변화에 능동적으로 대처할 수 있고 통신 프로토콜과 사용자 질의간의 의존성을 없애주는 계층형 구조를 기반으로 구현된 모니터링 시스템을 제시한다. 본 논문의 계층형 구조는 통신, 질의 언어, 모니터링 에이전트의 분리를 통해 분산 환경에서 모니터링 시스템의 구성 및 변경을 용이하게 한다.

• Safety and Health at Work
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• 제12권3호
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• pp.304-310
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• 2021

Background: Healthcare settings have been recognized among the most hazardous places to work. Based on the five categories of occupational hazards that were identified by the ILO and WHO, this study aimed to analyze policy framework relevant to occupational health protection of health workers (HWs) in public health service in China, then discussed how to share the experience of the National Health Service (NHS) England for improvement. Methods: Based on policy learning theories, policy analysis and qualitative interview were used in this study. Results: In the Chinese public health service, at least five laws related to the regulation of occupational health protection for HWs; however, enforcement of relevant laws was separated and multi-centered; the national monitoring system, which targeted to occupational hazards and health outcome for HWs in China, had yet to be developed; the top three priorities were workplace violence, bloodborne pathogens, and musculoskeletal disorders; national strategies included Security Hospital, and Healthy China 2030. In NHS England, three laws were fundamental; several monitoring systems had been set up, including NHS Staff Survey, Commissioning for Quality and Innovation incentive scheme; mental health, musculoskeletal problem, and nutrition disorder and overweight were raised great concern; Health and Safety, and NHS Healthy Workforce Program were critical nationwide strategies. Conclusion: There were several similarities as well as differences between the Chinese public health system and NHS England, which laid foundation of learning by China. Recommendations of improving occupational health policies in China were provided, based on the lessons learned from the NHS England.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.426-431
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• 2011

The quality of performance evaluation on engineering consultants that provide design-related technical services is difficult to be measured, and only a handful of papers discussed the quality during the design stage. Although design cost is relatively far less than construction cost for a project, the decisions made in the design phase have a significant impact on the final products of the project, especially for large public construction projects. Therefore, this research focuses on reviewing and then establishing a performance evaluation framework for the consulting firms that execute detailed design and provide technical services for the Taipei Rapid Transit Systems (TRTS). By interviewing experts, this study first established a set of indicators to evaluate these firms' performance. Then, those indicators were incorporated into the four aspects of balanced scorecard (BSC) to establish the architecture of the evaluation mechanism. The weight of each indicator was calculated by analytic hierarchy process (AHP) from a survey conducted among experts. The results showed that the top-three indicators were quantity take-off, functions conformity, and budgeting. The framework of performance evaluation established by this study can be applied to measure service performance during the design stage. It not only facilitates the monitoring of consulting firms, but also helps to reduce unnecessary change orders and disputes during the construction stage.