• International Journal of Computer Science & Network Security
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• 제21권3호
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• pp.145-152
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• 2021

In the Recent times, various technological enhancements in the field of artificial intelligence and big data has been noticed. This advancement coupled with the evolution of the 5G communication and Internet of Things technologies, has helped in the development in the domain of smart mine construction. The development of unmanned vehicles with enhanced and smart scheduling system for open-pit mine transportation is one such much needed application. Traditional open-pit mining systems, which often cause vehicle delays and congestion, are controlled by human authority. The number of sensors has been used to operate unmanned cars in an open-pit mine. The sensors haves been used to prove the real-time data in large quantity. Using this data, we analyses and create an improved transportation scheduling mechanism so as to optimize the paths for the vehicles. Considering the huge amount the data received and aggregated through various sensors or sources like, the GPS data of the unmanned vehicle, the equipment information, an intelligent, and multi-target, open-pit mine unmanned vehicle schedules model was developed. It is also matched with real open-pit mine product to reduce transport costs, overall unmanned vehicle wait times and fluctuation in ore quality. To resolve the issue of scheduling the transportation, we prefer to use algorithms based on artificial intelligence. To improve the convergence, distribution, and diversity of the classic, rapidly non-dominated genetic trial algorithm, to solve limited high-dimensional multi-objective problems, we propose a decomposition-based restricted genetic algorithm for dominance (DBCDP-NSGA-II).

• 건축사
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• 통권569호
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• pp.28-33
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• 2016

• 산업경영시스템학회지
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• 제41권1호
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• pp.128-139
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• 2018

As The Fourth Industrial Revolution and Intelligent Information Age came into full-scale, the policy of open government data has become a hot topic for each country. The United States, the United Kingdom, and other countries are shifting policy direction to "creating value" of open government data. Also, in the age of the digital economy where the data market is soaring, open government data is gradually being recognized as a new raw material for new business and start-ups. In addition, Korea ranked first in the OECD open government data evaluation twice in a row, and was highly evaluated in the international evaluation. However, domestic firms are still lacking in qualitative openness of government data, data is dispersed among institutions, lack of public-private data linkage, and development of app-oriented development. This study attempts to analyze major national policies for the creation of a data ecosystem that considers data lifecycle, from production to storage, distribution and utilization of data. First, the target countries were the leading public data countries among the OGP member countries, the USA, the UK, Australia and Canada. The results of this study are as follows. As a result of analyzing the results and comparing Korea's policies, it was concluded that most of Korea is superior in open government data policy. However, improvement of data quality, development of open data portal as an open platform, support for finding various users including apps and web development companies, and cultivation of open government data utilizing personnel are analyzed as policy issues. In addition, the direction of policy for the balanced ecosystem of Korea is presented together.

• Clinics in Shoulder and Elbow
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• 제26권3호
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• pp.252-259
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• 2023

Background: The purpose of this study was to identify demographics and risk factors associated with unplanned 30-day readmission and reoperation following open procedures for shoulder instability and examine recent trends in open shoulder instability procedures. Methods: The American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database was queried using current procedural terminology (CPT) codes 23455, 23460, and 23462 to find patients who underwent shoulder instability surgery from 2015 to 2019. Independent sample Student t-tests and chi-square tests were used in univariate analyses to identify demographic, lifestyle, and perioperative variables related to 30-day readmission following repair for shoulder instability. Multivariate logistic regression modeling was subsequently performed. Results: In total, 1,942 cases of open surgical procedures for shoulder instability were identified. Within our study sample, 1.27% of patients were readmitted within 30 days of surgery, and 0.85% required reoperation. Multivariate logistic regression modeling confirmed that the following patient variables were associated with a statistically significant increase in the odds of readmission: open anterior bone block/Latarjet-Bristow procedure, being a current smoker, and a long hospital stay (all P<0.05). Multivariate logistic regression modeling confirmed statistically significant increased odds of reoperation with an open anterior bone block or Latarjet-Bristow procedure (P<0.05). Conclusions: Unplanned 30-day readmission and reoperation after open shoulder instability surgery is infrequent. Patients who are current smokers, have an open anterior bone block or Latarjet-Bristow procedure, or a longer than average hospital stay have higher odds of readmission than others. Patients who undergo an open anterior bone block or Latarjet-Bristow procedure have higher odds of reoperation than those who undergo an open soft-tissue procedure. Level of evidence: III.

• 한국건설관리학회논문집
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• 제13권4호
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• pp.3-15
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• 2012

현재 BIM을 도입한 주요 국가들은 BIM 발주 또는 납품 전 단계에서 설계사가 설계과정 중 기본적인 품질 확보가 가능하도록 필요한 지침을 제공하고 있다. 그러나 국내 건설산업의 경우, BIM의 도입 및 적용은 확산되고 있으나, BIM 발주 시 설계품질을 고려한 지침은 제공되지 않고 있다. 이로 인해 설계사는 자의적 해석에 의존적일 수밖에 없으며, 발주자는 납품받은 BIM 데이터의 품질을 신뢰하기 힘든 상황이다. 또한, BIM 소프트웨어의 내부 오류는 파악할 수 없는 관계로 자체 포맷에 의한 품질검토는 BIM 데이터의 품질을 확보하기 어렵다. 따라서 BIM 데이터의 품질을 높이기 위해서는 개방형 BIM(IFC)을 활용한 객체모델링과 객체별 속성 정의 등을 포함하는 지침을 개발할 필요가 있다. 이는 BIM 데이터의 기본 품질을 보증하고, 품질검토를 통하여 좀 더 나은 품질을 확보하는데 활용될 수 있다. 이에 본 연구는 설계품질 향상을 위한 개방형 BIM기반의 품질관리 방안으로 해외 주요 국가들의 선진사례와 품질검토 소프트웨어를 조사 분석하여 기본적인 품질관리가 가능한 요구조건을 제시하였고, 기존 BIM 사례에 적용하여 요구조건의 유용성을 검토하였다.

• 유통과학연구
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• 제13권1호
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• pp.57-70
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• 2015

Purpose - Open source software has high utilization in most of the server market. The utilization of open source software is a global trend. Particularly, Internet infrastructure and platform software open source software development has increased rapidly. Since 2003, the Korean government has published open source software promotion policies and a supply promotion policy. The dynamism of the open source software market, the lack of relevant expertise, and the market transformation due to reasons such as changes in the relevant technology occur slowly in relation to adoption. Therefore, this study proposes an assessment model of services provided in an open source software service company. In this study, the service level of open source software companies is classified into an enterprise-level assessment area, the service level assessment area, and service area. The assessment model is developed from an on-site driven evaluation index and proposed evaluation framework; the evaluation procedures and evaluation methods are used to achieve the research objective, involving an impartial evaluation model implemented after pilot testing and validation. Research Design, data, and methodology - This study adopted an iteration development model to accommodate various requirements, and presented and validated the assessment model to address the situation of the open source software service company. Phase 1 - Theoretical background and literature review Phase 2 - Research on an evaluation index based on the open source software service company Phase 3 - Index improvement through expert validation Phase 4 - Finalizing an evaluation model reflecting additional requirements Based on the open source software adoption case study and latest technology trends, we developed an open source software service concept definition and classification of public service activities for open source software service companies. We also presented open source software service company service level measures by developing a service level factor analysis assessment. The Behavior-Structure-Evolution Evaluation Model (BSEM) proposed in this study consisted of a rating methodology for calculating the level that can be granted through the assessment and evaluation of an enterprise-level data model. An open source software service company's service comprises the service area and service domain, while the technology acceptance model comprises the service area, technical domain, technical sub-domain, and open source software name. Finally, the evaluation index comprises the evaluation group, category, and items. Results - Utilization of an open source software service level evaluation model For the development of an open source software service level evaluation model, common service providers need to standardize the quality of the service, so that surveys and expert workshops performed in open source software service companies can establish the evaluation criteria according to their qualitative differences. Conclusion - Based on this evaluation model's systematic evaluation process and monitoring, an open source software service adoption company can acquire reliable information for open source software adoption. Inducing the growth of open source software service companies will facilitate the development of the open source software industry.

• 환경영향평가
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• 제12권5호
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• pp.341-348
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• 2003

Seasonal characteristics of water quality and effect of the freshwater discharge during open the tide embankment in Haechang Bay were evaluated. In the freshwater, where interior of the tide embankment, COD and Chl-a exceeded about 4mg/L and $10mg/m^3$, respectively, independent of season, while in the seawater they showed high values in April and July in contrast to the other period due to input of freshwater and increase of phytoplankton, respectively. The content of seawater inorganic nitrogen maintained a relatively high level at inner part of the bay, whereas high values of inorganic phosphorus content was distributed at all over the bay. The limiting factor for algal growth was nitrogen with respect to the N/P ratio. The compass of influence by the freshwater discharge in April was quite different with water pollutants. As a result of the salinity variation with time, the freshwater extended strongly to offshore from the surface layer without mixing with depth when open the tide embankment, and reached within about one hour at a station which is 3.5km from the tide embankment. To effective water quality management of Haechang Bay, discharge rate and pollutant loads should be controlled.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2011년도 추계학술대회
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• pp.669-671
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• 2011

소프트웨어 개발 프로젝트에서는 다양한 개발 방법론을 적용해서 소프트웨어가 개발되고 있으며, 최종 목표 소프트웨어 및 시스템에 따라 최적의 개발방법론이 적용한다. 개발프로세스 단계에 따라 모듈을 개발하며 최종적으로 통합 단계에서 하나의 소프트웨어로 통합하고 있다. 하지만 프로젝트가 복잡하고 모듈별 의존도가 높을 경우 각 모듈 별로 개발된 코드는 많은 요구사항의 변경, 형상관리 미흡 및 표준 미 준수 등으로 모듈 통합이 완벽하게 진행되지 않고 있으며 그로인해 프로젝트 기간안에 완료하지 못하는 상황이 빈번하게 발생한다. 통합이 완료되지 못하면 소프트웨어 품질은 낮아 지고 프로젝트 비용 및 시간은 늘어나 결국 프로젝트가 실패 할 가능성이 높아진다. 각 모듈의 통합을 예측 가능하고 성공적으로 하기 위해 지속적인 통합 시스템을 구축하여 프로젝트에 적극적으로 적용하고, 공개소프트웨어 도구를 활용하여 자동화 시스템을 구축해야 한다. 국내에서는 지속적인 통합방법의 중요성을 인식하고 있지만 프로젝트 비용. 시간, 인식부족 및 도구의 부재 등으로 인해 소프트웨어 프로젝트에 활용되고 있지 않은 실정이다. 이에 본고에서는 공개소프트웨어 도구를 이용하여 지속적인 통합 환경을 구축하고 소프트웨어 품질개선에 활용할 수 있는 테스트 방안을 제안한다.

• 한국주거학회논문집
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• 제26권5호
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• pp.143-152
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• 2015

The purpose of this study was to analyze the usage characteristics and the role of spatial and social psychology of open spaces in urban neighborhoods. The survey for this study was conducted on 318 residents in Gyungsan. For analysis, the frequencies and means were calculated, the chi-square test, t-test, and analysis of variance were performed. Survey results revealed that, first, not only the preferred open space type but also the usage characteristics by gender were different. The tendency for males was to visit open spaces to exercise and to stay for longer than one hour. However, the females visited open spaces to care for their children and meet friends or neighbors. They also visited more often than males but stayed for a shorter time. Second, females tended to consider the open space as a place for rest and leisure. Females valued the social psychology aspects of the open space function. Third, regarding the spacial role of open space in urban neighborhoods, study participants believed that the waterside parks improve the quality of life, but were concerned for the safety of children. Considering the social psychology role of open spaces, study participants regarded the waterside parks as improving emotional health. Particularly, they believed the waterside parks played a greater role in daily life as a place for meeting, resting, and leisure than other open space types such as playground, children's parks, and sport parks.

• 한국컴퓨터정보학회논문지
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• 제4권4호
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• pp.120-125
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• 1999

본 논문은 인터넷상에서의 사이버 종합교육센터(OpenEdu)에 관한 연구이다. 기존의 원격교육 형태는 ID허용에 의해서 진행되고 있는 것이 보통이다. 하지만 사이버 종합교육센터는 인터넷을 이용한 열린교육의 형태로서, 무료로 진행이 되고 있으며, 다양한 내용의 컨텐츠와 계속적인 질적인 향상을 추구하고 있다. 또한 사이버 종합교육센터는 500여 강좌와 부가 서비스를 하고 있으며, 이러한 시스템은 초고속 통신망을 이용한 원격교육 응용(HTML, PDF, Front page)에 의해서 비동기방식인 자율학습 형태로 진행되고 있다. 본 사이버 종합교육센터를 통해서 비동기 원격교육의 새로운 파라다임을 예상한다. 본 사이트의 목적은 많은 인터넷 사용자로 하여금 다양한 정보를 손쉽게 접할 수 있게 하기 위한 무료교육 서비스의 일환이다. 본 연구결과로는 원격교육을 필요로 하는 많은 인터넷 사용자가 본 사이트를 통해서 다양한 혜택을 받고 있으며, 차후 연구진행사항은 계속적인 사용자 인터페이스와 컨텐츠의 질적 향상을 필요로 한다.