• Journal of Preventive Medicine and Public Health
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• 제50권6호
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• pp.347-360
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• 2017

Objectives: This meta-analysis aimed to evaluate congenital malformations in infants conceived by assisted reproductive techniques (ART), compared with infants conceived spontaneously. Methods: In this study, available resources searched to find relevant articles included PubMed, ScienceDirect, Scopus, Google Scholar, Cochrane, ProQuest, Iranmedex, Magiran, and Scientific Information Database. After extracting the necessary information from evaluated articles, meta-analysis on the articles' data was performed using Stata version 11.2. Results: In this study, from a total of 339 articles, extracted from the initial investigation, ultimately 30 articles were selected for meta-analysis that assessed the use of ART on the risk of congenital abnormalities and some birth complications on 5 470 181 infants (315 402 cases and 5 154 779 controls). The odds ratio (95% confidence interval [CI]) for low birth weight was 1.89 (95% CI, 1.36 to 2.62), preterm labor 1.79 (95% CI, 1.21 to 2.63), cardiac abnormalities 1.43 (95% CI, 1.27 to 1.62), central nervous system abnormalities 1.36 (95% CI, 1.10 to 1.70), urogenital system abnormalities 1.58 (95% CI, 1.28 to 1.94), musculoskeletal disorders 1.35 (95% CI, 1.12 to 1.64), and chromosomal abnormalities in infants conceived by ART was 1.14 (95% CI, 0.90 to 1.44), which were all statistically significant, except chromosomal abnormalities. Conclusions: The risk of congenital abnormalities and some birth complications were significantly higher in ART than normal conception, while chromosomal abnormalities were not; therefore, the application of ART should be selected individually for patients by detailed assessment to reduce such risks in the population.

• 한국지역지리학회지
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• 제10권2호
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• pp.356-370
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• 2004

인터넷의 확산과 함께 글로벌 커뮤니케이션을 가로막았던 경제적, 지리적 장벽은 정차 제거되고 있는 상황에서 인터넷을 이용한 국가간 정보교환에 대한 연구, 그리고 정보교환과 지리적 거리와의 상관성 등에 대한 연구는 충분히 이루어 지지 않은 형편이다. 본 연의 목적은 인터넷 상에서 각 국가가 지닌 사이버상의 디지털 위치에 대한 현황과 함께, 이것이 국가간 지리적 경계와 어떤 연관성이 있는가를 검토하는 것이다. 연구 결과에 따르면, 미국이 사이버 공간에서 가장 중심적인(central) 위치를 차지하는 것으로 나타났다. 다음으로 영국, 독일, 호주, 이태리, 프랑스, 캐나다, 일본, 중국이 준중심적인(semi-central) 국가들이었다. 주변적인(peripheral) 국가들은 우루과이, 룩셈부르그, 아람에밀레이트 등으로 나타났다. 둘째로 사이버 공간의 국가별 디지털 위치와 지리적 거리는 통계적으로 유의미한(significant) 상환관계를 보이지 않았다.

• 정보과학회 논문지
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• 제43권6호
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• pp.613-620
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• 2016

본 논문에서는 대규모의 작업을 고성능으로 처리하기 위한 Many-Task Computing(MTC) 기술을 기존의 빅데이터 처리 플랫폼인 Hadoop에 적용하기 위한 MOHA(Many-Task Computing on Hadoop) 프레임워크에 대해 기술한다. 세부적으로는 MOHA의 기본 개념과 개발 동기, 분산 작업 큐에 기반한 PoC(Proof-of-Concept) 수행 결과를 제시하고 향후 연구 방향에 대해서 논의하고자 한다. MTC 응용은 각각의 태스크들이 요구하는 I/O 처리량은 상대적으로 많지 않지만, 동시에 대량의 태스크들을 고성능으로 처리해야하고 이들이 파일을 통해서 통신한다는 특징을 가지고 있다. 따라서 기존의 상대적으로 큰 데이터 블록 사이즈에 기반한 Hadoop 응용과는 또 다른 패턴의 데이터 집약형 워크로드라고 할 수 있다. 이러한 MTC 기술과 빅데이터 기술의 융합을 통해 멀티 응용 플랫폼으로 진화하고 있는 Hadoop 생태계에 신규 프레임워크로서 대규모 계산과학 응용을 실행할 수 있는 MOHA를 추가하여 기여할 수 있을 것이다.

• 한국IT서비스학회지
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• 제2권2호
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• pp.15-29
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• 2003

This thesis suggests a R&D model for Korean SI companies who aggressively drive oversea business to overcome domestic market limitation and to become world class SI players. Even though there have been a lot of discussions on IT technologies and new business models, scientific approach to a R&D model for SI companies is rare due to its natural distinctiveness from manufacturing and general service domain. Therefore, this will be a flagship thesis to keep up our study. As business market environment gets more competitive, major Korean SI players will be confronted with much more keen competition among themselves. And as they are willing to expand their oversea market presence, they can not help struggling against global SI players. So, here we are presenting SI players the reinforcement of R&D as one of the key components to build up their own core competencies. That is, SI players have to adopt and evaluate fast changing and complicated IT technologies at the right time, and to apply them into a real business with cost-effective service delivery and operation processes internally. The ultimate purpose of all of these activities is to offer a SI company the value added business model based on its innovative technical capabilities and well refined service deliver model. For this purpose, we suggests, SI company's R&D has to play an important role of emerging technology verification/evaluation/utilization, value added business model creation, future innovation lead, standard body participation, and effective service delivery and quality system development. To become a more effective R&D organization, hybrid R&D, in which central R&D and divisional sub R&D work together, is considered as an idea model. The reliability of the R&D model for Korean SI companies', here we suggest, has been checked by SI companies R&D specialists and on-site business people.

• 한국통신학회논문지
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• 제39C권9호
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• pp.841-851
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• 2014

동일한 주파수 대역을 공유하는 무선기술들은 상호 간섭에 의해 가끔 심각한 성능저하를 일으킨다. 본 논문에서는 근거리 4S (Ship to Ship, Ship to Shore) 해상채널 환경에서 상호 간섭에 의한 성능저하를 개선하기 위해 2.4GHz의 ISM 대역에서 동작하는 서로 다른 통신방식에서 트래픽 스케줄링을 기반의 중복회피 알고리즘을 제안하였다. 특히 IEEE 802.11의 WLAN과 블루투스의 데이터 전송을 고려하여 두 시스템들이 서로 독립적으로 동작할 때 제안된 알고리즘이 동작하는 것을 보인다. 모의실험 결과에 따르면, 제안된 알고리즘은 데이터 전송시 추가적인 작은 지연으로 WLAN과 블루투스 사이에서 간섭을 완화시킴을 확인할 수 있었다.

• 한국전자통신학회논문지
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• 제8권11호
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• pp.1625-1632
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• 2013

본 논문에서는 지난 정부에서 추진된 제 3차 지방과학기술진흥정책('08-'12)의 일환으로 추진된 지역 연구활동에 있어서 기초분야 연구 성과물을 대상으로 16개 지역별로 연구 활동도 및 수준, 연구 생산성을 비교 분석 하였다. 각 지역별 연구 생산성의 비교는 연구 인프라(대학, 연구인력 등)의 비편재 요소를 고려하여 비교대상의 객관성을 고려하였다. 특히, 경남지역에서 산출된 대상기간 동안의 모든 기초분야 논문을 모집단으로하여 연구개발 지형도를 구현하고, 기 발표된 해당지역 미래전략산업과의 연계성을 고찰하였다. 따라서 미래전략산업과 연구지형에서 파악된 지역 역량이 집중된 기초분야와의 연계매트릭스를 통해 현재의 내재된 기초역량과 대응되는 미래기술 및 산업을 조망하였다.

• 한국재난정보학회 논문집
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• 제13권4호
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• pp.476-482
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• 2017

지자체에서 관리하는 교량에 대해서 과학적이고 체계적인 유지관리 표준안과 정량화된 데이터기반을 통한 예산확보 및 집행의 과학화를 위해 지자체관리용 교량 유지관리시스템이 필요한 실정이다. 본 연구는 지자체에서 유지관리하고 있는 소규모 교량의 효율적인 관리를 위한 시스템 개발을 목표로 하며 BIM/GIS기술 등의 ICT융합기술을 사용하였다. 시스템개발의 세부내용으로는 모바일 기기용 소규모 교량 유지관리 프로그램 개발, 소규모 교량 유지관리 데이터베이스 개발, 소규모 교량 통합유지관리 개발이며 지자체에서 관리하는 소규모 교량의 테스트베드 구축 및 운영내용을 확인하여 개발한 프로그램 시스템의 신뢰성을 얻었다. 개발된 프로그램 시스템을 무전원방식의 교량 스마트 명판제작 및 Reader모듈 개발로 연계하였다.

• 방사선산업학회지
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• 제9권1호
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• pp.29-35
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• 2015

Radiation technology is the one for developing new products or processes by applying radiation or for creating new functions in industry, research and medical fields, and its application is increasing consistently. For securing an advanced technology competitiveness, it is required to create a new added value by information consumer through providing an efficient system for supporting information, which is the infrastructure for research and development, contributed to its collection, analysis and use with a rapidity and structure in addition to some direct research and development. Provision of the management structure for information resources is especially crucial for efficient operating the system for supporting information in radiation technology, and then a standard classification structure of information must be first developed as the system for supporting information will be constructed. The standard classification structure has been analyzed by reviewing the definition of information resources in radiation technology, and those classification structures in similar systems operated by institute in radiation and other scientific fields. And, a draft version of the standard classification structure has been then provided as 7 large, 25 medium and 71 small classifications, respectively. The standard classification structure in radiation technology will be developed in 2015 through reviewing this draft version and experts' opinion. Finally, developed classification structure will be applied to the system for supporting information by considering the plan for constructing this system and database, and requirements for designing the system. Furthermore, this structure will be designed in the system for searching information by working to the individual need of information consumers.

• 산업경영시스템학회지
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• 제44권3호
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• pp.50-63
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• 2021

There has been a steady rate of accident in Coal Thermal Power Plants which have relatively higher chance of mortality. However, neither the systematic view of safety management nor the methodology such as safety factors or system requirements are yet to be studied in detail. Therefore, this study aims to propose a methodology to preemptively deal with safety issues and to secure fact focused responsibility in safety. It consists of two main parts. First, the Safety Measurement Index(SMI) with total 50 factors is proposed by analyzing the key factors that contribute to safety accidents based on failure mode and effect analysis (FMEA) and quality function deployment (QFD). To analyze the safety requirements, index presented by major countries and organizations are discussed. Second, main features of intelligent CCTV are studied to determine their relative importance for the framework of Smart Safety Management System (SSMS). Main features are discussed with four technological steps. Also, QFD was held to analyze to analyze how key technologies deal with Quality Measurement Index(QMI). The research results of this study reveal that scientific approaches could be utilized in integrating CCTV technologies into a smart safety management system in the era of Industry 4.0. Moreover, this reasearch provides an specific approach or methodology for dealing with safety management in Coal Thermal Power Plant.

• International Journal of Computer Science & Network Security
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• 제21권12spc호
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• pp.427-436
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• 2021

The article reveals and theoretically substantiates the trends of foreign language teachers' professional training in universities of Ukraine in terms of European integration, which are systematized in three areas: macro-level (system of education), meso-level (universities) and micro-level (subjects of educational process). The article aims to substantiate the trends of foreign language teacher training in the context of European integration and the main directions of creative use of constructive ideas of European experience in the innovative development of education. The article lights up the system for improving foreign language teacher training in universities, which is based on updated goals, content and approaches to the implementation of basic concepts, principles and features of teacher training in European experience, enable us to improve the quality of teacher training, its competitiveness in the European labor market. In the article developed the conceptual model of strategic development of the university in the conditions of European integration. It is emphasized that information technologies provide great opportunities for the development of professional skills and intellectual potential of future professionals. At present, the computerization of the educational process in higher education institutions is considered as one of the first and most promising areas for improving the quality of education. The article offered directions of internationalization of educational activity of university in the conditions of European integration. Diagnostic tools for the development of the university in terms of integration into the European educational space, individual rating and ranking of structural units of the university have been developed; main directions of activity of the laboratory of the skill of the teacher of higher school and methodical recommendations on the creation and the organization of work of scientific laboratories.