• Communications of the Korean Mathematical Society
• /
• v.38 no.3
• /
• pp.925-935
• /
• 2023

In this paper, we consider a boundary value problem for a sixth order difference equation. We prove the monotone behavior of the eigenvalue of the problem as the coefficients in the difference equation change values and the existence of a positive solution for a class of problems.

• Communications of the Korean Mathematical Society
• /
• v.34 no.2
• /
• pp.657-670
• /
• 2019

In this paper, we consider the preconditioned iterative methods for solving linear complementarity problem associated with an M-matrix. Based on the generalized Gunawardena's preconditioner, two preconditioned SSOR methods for solving the linear complementarity problem are proposed. The convergence of the proposed methods are analyzed, and the comparison results are derived. The comparison results showed that preconditioned SSOR methods accelerate the convergent rate of the original SSOR method. Numerical examples are used to illustrate the theoretical results.

• Bulletin of the Korean Mathematical Society
• /
• v.49 no.6
• /
• pp.1241-1250
• /
• 2012

We prove the maximum principle and the comparison principle of $p$-harmonic functions via $p$-harmonic boundary of graphs. By applying the comparison principle, we also prove the solvability of the boundary value problem of $p$-harmonic functions via $p$-harmonic boundary of graphs.

• Child Health Nursing Research
• /
• v.15 no.2
• /
• pp.164-170
• /
• 2009

Purpose: In this study a comparison was done of child-rearing attitudes of parents and problem behavior of children as perceived by parents and children. Methods: The participants were 205 fifth and sixth graders living in the city of Gangneung and their parents. The child-rearing attitudes and the problem behavior were assessed using a self-reported questionnaire. Results: The perception scores of the parents and children for total parents child-rearing attitudes were significantly different. There were also significant difference in the subcategories, affectionate-hostile, autonomous-controlling, rational-irrational. The scores for total behaviors problem as well as the sub-categories were all significantly different for the parents and children. Conclusion: As there were differences in perception of child-rearing attitudes of parents and problem behavior of children between parents and their children, nurses should help parents to communicate with their children with affection and respect, and to observe their environment to identify problem behavior.

• Communications for Statistical Applications and Methods
• /
• v.13 no.1
• /
• pp.39-47
• /
• 2006

The Bayesian approach to multiple testing procedure for one sample testing problem proposed by Scott and Berger (2003) is extended to two-sample comparison problem in microarray experiments. The prior distribution of each gene's mean for one sample is given conditionally on the corresponding gene's mean for the other sample. Posterior distributions of interesting parameters are derived and estimated based on an importance sampling method. A simulated example is given for illustration.

• Journal of Korean Elementary Science Education
• /
• v.22 no.2
• /
• pp.163-172
• /
• 2003

The purpose of this study was to develop the analytic framework of Creative Problem Solving(CPS) for elementary school science textbook. For this purpose, we developed the framework based on the theories of problem, definition of problem solving and various kinds of CPS model. The six elements of the framework for content analysis were extracted through theoretical examination: problem introduction, problem statement, solution thinking, formulating hypothesis, testing hypothesis, and assessment. The developed framework was applied to the extbooks for the 5th and the 6th grades 1st semester in elementary science textbook of the 7th national curriculum. The results of this study were as follows: 1. The scores of the framework for content analysis in the 5th grade were slightly higher than those of the 6th grade, but there were no significant difference. 2. The comparison of the scores between the elements of the framework was found that the scores on the elements of testing hypothesis and formulating hypothesis were higher than those of the other elements. 3. The comparison of the scores between the units was found that the scores of the framework for the 9th unit (“trip of water”) of the 5th grade were higher than those of the other units, which were presented lower level than 1.0 (50.0%) score of the framework. 4. The comparison of the scores between the intensive course and the regular coures in the 6th grade textbook was showed that the scores on the intensive course were higher than the basic course. In conclusions, it was found that the problem introduction and problem statement in the textbook should be amended, and that various information and activities should be presented in the textbook.

• Journal of the Korean Institute of Rural Architecture
• /
• v.6 no.3
• /
• pp.15-24
• /
• 2004

Korea is facing a serious elderly problem, because the elderly population and households have been increasing radically. To cope with the coming elderly problem, social welfare services and elderly housing need to be carefully prepared. Especially, elderly housing has been recognized to be promising to solve the great portion of the problem. In this point of view, I attempted, in this study, to show the theoretical bases on the residential environment for the elderly households and their residential consciousness. I make a survey of residential consciousness of the elderly on 575 Koreans aged 60 or more, and analyze the difference of residential consciousness of them by regional comparison of the elderly. The result of this study will be expected to be a reference to the housing planning for the elderly household in Korea.

• Journal of Korean Elementary Science Education
• /
• v.32 no.4
• /
• pp.464-472
• /
• 2013

The purpose of this study was to analyze the science inquiry problem finding ability of gifted elementary students of science and general elementary students. For this purpose, this study analyzed the types of science inquiry problems in an ill-structured problem finding situation. Also, this study has compared science inquiry problem finding abilities of those two groups. From the results of this study, new ways of improving student' science inquiry problem finding ability and selection of gifted students of science were suggested. The results of this study can be summarized as follows. First, most of the inquiry problems generated by the scientifically gifted and the general students in an ill-structured problem situation could be categorized into seven types (measurement, method, cause, possibility, what, comparison, relationship) according to the inquiry objectives, and both group found more problems in scientific context than in everyday context. Regardless of the context of problem, scientifically gifted students found more problems and the type of problems generated by them were more various than those of general students. Second, there were differences in problem finding ability between scientifically gifted and general students. Scientifically gifted students found more problems and the quality of problems were higher than general students.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2016.05a
• /
• pp.363-366
• /
• 2016

In this paper, we propose a method for detecting pedestrian, problem-solving situations that occur in a cross. When a pedestrian crossing and other, there occurs a problem of detecting the other pedestrians for detecting a specific pedestrian in the image. The proposed method for solving the problem is as follows. First, select a specific pedestrian detected by bounding box, and extracts the area as a template. Detecting a pedestrian from the image using the HOG, and designated as a candidate region. The final choice of the pedestrian detected by comparison with a candidate pedestrian with the specific pedestrian extracted for template. In comparison, using the Template matching, Histogram comparison and LBP.

• 제어로봇시스템학회:학술대회논문집
• /
• 1994.10a
• /
• pp.307-312
• /
• 1994

The authors have been devoted to researches on fuzzy theories and their applications, especially control theory and application problems, for recent years. In this paper, the authors present results on a comparison of optimal solutions between ones of an ordinary-typed mathematical linear programming problem(O.M.I.P. problem) and ones of a Zimmerman-typed fuzzy mathematical linear programming problem (F.M.L.P. problem), and comment about the sensitivity (differences and fuzziness on between O.M.L.P. problem and F.M.L.P. problem) on optimal solutions of these mathematical linear programming problems.