• Journal of applied mathematics & informatics
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• v.29 no.1_2
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• pp.135-143
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• 2011

As a zero set of some multivariate splines, the piecewise algebraic variety is a kind of generalization of the classical algebraic variety. This paper presents an algorithm for isolating real roots of the zero-dimensional piecewise algebraic variety which is based on interval evaluation and the interval zeros of univariate interval polynomials in Bernstein form. An example is provided to show the proposed algorithm is effective.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04b
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• pp.682-684
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• 2001

본 논문에서는 학교평가에 효과적으로 대비할 수 있는 교육정보화 방안을 모색하였다. 이를 위해, 이미 도입되어 있는 초.중등학교 종합정보관리시스템의 기능을 활용하였다. 이 정보시스템을 이용하여 학교평가에 대비하는 시간을 줄이고, 학교평가 자료를 쉽게 추출하고자 하였다. 먼저, 학교평가 항목을 토대로 현재의 종합정보관리시스템을 분석하여 학교평가의 지원여부를 확인하였다. 그리고, 효율적으로 학교평가를 지원하기 위해서 반드시 갖추어야하는 종합정보관리시스템의 기능을 제시하였다.

• Proceedings of the Korea Concrete Institute Conference
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• 2003.05a
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• pp.187-192
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• 2003

Nowadays, It has adapted both Ultimate Strength Design(USD) and Allowable Stress Design(ASD) Method evaluating load-carrying capacity of PSC I Type Girder Bridge. But it has confused because the each method has brought some different results. This study shows some results of loading test of the PSC I type Girder Bridge and analyzed the structural behavior by FEM analysis considering material nonlinear. Parametric study of effective prestress of post tendon is performed and compared to results of loading test.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.13 no.1
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• pp.1-6
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• 2010

The small bowel is the most difficult intestinal segment to examine. Radiologic tests are mostly insensitive and double-balloon enteroscopy is unsuitable for the younger child. Capsule endoscopy is a novel wireless method of investigation of the small bowel. The primary indications for capsule endoscopy include evaluation of obscure gastrointestinal bleeding, small bowel Crohn's disease, and polyposis syndromes. Capsule endoscopy offers an accurate and effective means of investigating the small bowel in children. Capsule retention is a potential complication of capsule endoscopy. This review provides the indications, safety, and limitations of wireless capsule endoscopy in children.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.12 no.2
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• pp.29-42
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• 2004

This paper performs a historical review on aviation threats through a statistical survey. The impact factor, as a criterion to measure the seriousness of the threats occurred, is introduced and evaluated based on annual totals of hijacking and fatalities against aircraft 1948 through 2004. Also, the paper suggests processes of evaluating the level of threats and key functions for an effective management of the aviation security.

• Journal of Engineering Education Research
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• v.19 no.2
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• pp.91-96
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• 2016

An engineering educational servery for graduating seniors had been conducted in Songwon University to improve engineering program objectives. The analysis results show that the current engineering educational objectives need to be modified to satisfy the ABEEK accredited criteria and engineering curriculum returning is necessary to include more design courses.

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07a
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• pp.506-510
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• 2005

As FPD technology is getting improved, there are a lot of issues on signal processing and analysis, and its relative importance has been increasing day by day. In particular, response time sad in the evaluation item of FPD has been measured by oscilloscope. In this paper, we propose an effective measurement method of response time in FPD. The proposed method is to calculate the rising/ falling time by using statistical techniques of histogram and analyzing an energy distribution. Ultimately, the method has proved the utility and reliability by comparison of oscilloscope

• Proceedings of the KIEE Conference
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• 1988.07a
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• pp.655-658
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• 1988

Interconnection network is to provide communication among functional modules. The interconnections considered are Generalized Cube networks. Two situations are examined: a memory module is equally likely to be addressed by a processor and a processor has a favorite memory. This paper proposes the effective condition of operation in interconnection network through performance evaluation by simulation.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.23 no.55
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• pp.33-42
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• 2000

It is difficult to estimate the effective factors upon Cumulative Trauma Disorders in real workplace because those are developed by combination of various risk factors for time. The purpose of this paper was to evaluate relative level of CTDs risk factors such as task-related factors, anthropometric factors, joint deviation factors and personal factors using fuzzy linear regression models. And the models are built corresponding to each category with the survey data from telephone operators. The coefficient of fuzzy models are described as the relative level of variable to present risk factors upon CTDs.

• Journal of the Korea Safety Management & Science
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• v.6 no.4
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• pp.195-213
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• 2004

This paper deals with an efficient and effective method on measuring, monitoring and evaluating safety and environmental performances of a process using SPC control charts. We propose 7 safety control charts as a tool to monitor hazard dendritics, and we propose 15 environment control charts to monitor pollution emissions. We also propose useful guidelines that SPC(Statistical Process Control) control charts can be used for safely and environmental monitoring.