• Proceedings of the KAIS Fall Conference
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• 2006.05a
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• pp.614-616
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• 2006

본 논문은 본인이 근무하는 회사(H사)에서 해외 ERP프로그램을 도입하는 과정 및 구축을 실시하면서 겪었던 일과 구축 후 앞으로 개선해야 할 방향에 대해 ERP 구축했던 실무 담당자로서의 견해를 논문화하여, 개선방향을 제시하였다.

• Annual Conference of KIPS
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• 2003.05a
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• pp.607-610
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• 2003

지문 정합을 할 때 특징점 사이의 거리와 각도가 유사한 순서대로 있는가를 비교하는 알고리즘을 제안한다. 한 점에서 가장 가까운 특징점을 찾고 다시 찾은 점에서 가장 가까운 특징점을 찾는데 이러한 세 개의 특징점들 사이의 거리와 끼인 각도를 기본 요소로 하여 이들의 순차를 특징점 배치도로 정의하여 등록지문에도 유사한 순차가 있는지를 검사한다. 정합 시에 특징점 사이의 거리, 각도 순차가 있는가를 검사하기 때문에 중심점을 찾지 않아도 되며 지문의 이동, 회전에 영향을 받지 않는다.

• Journal of the Korea Society of Computer and Information
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• v.25 no.7
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• pp.213-224
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• 2020

This study analyzes the effects of programming-based TPACK education programs, designed by Kim and Lee (2019), on the teaching expertise of pre-service teachers. The research subjects were 40 pre-service teachers, divided into an experimental group and a control group. The experimental group underwent the programming-based TPACK education program, and the control group used an ICT-based TPACK education program. A test tool was used to measure not only teaching expertise but also teaching efficacy and self-efficacy beliefs about technology integration. As a result of the study, teaching expertise, teaching efficacy, and self-efficacy beliefs about technology integration improved significantly in the experimental group. The pretest showed no significant difference between the experimental group and the control group, but in the post-test, the experimental group showed significantly higher teaching expertise than the control group. These results showed that the programming-based TPACK education program is effective for developing teaching expertise in pre-service teachers.

• Journal of Forest and Environmental Science
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• v.34 no.2
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• pp.101-107
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• 2018

We identified the main impacts, drivers, and restoration projects for Atlantic Forest in Northwest of the Rio Grande do Sul State, Brazil. The objective was to analyze the quantity, distribution, and causes of the environmental crimes in 2000-2014. To verify differences between degraded and restored areas, we performed a t-test; ANOVA for the municipalities with more quantity of crimes, simple linear regression analysis for the relationship between sizes of degraded areas and quantity of seedlings planted, and Principal Component Analysis (PCA) for environmental damages categories and population of the municipalities. The main environmental damages found were deforestation outside permanent preservation area (20%) and those related to Permanent Preservation Area (37%). Environmental crimes in these areas fall into two categories: native and exotic vegetation removal (17%), and impediment to natural regeneration (20%). The average size of the degraded areas was $5,359{\pm}526m^2$, while for restored areas was $3,337{\pm}255m^2$. The sizes of the degraded fragments were similar among the five municipalities with the higher number of environmental crimes (ANOVA: p>0.05, F=1.24; df=241). The number of seedlings planted was positively related to the sizes of the degraded fragments (p<0.001, $R^2=0.53$). Segregation between the less and the most populous municipalities was found with the PCA analysis along PC1 (51.7%), while PC2 represented 19.2% of the total variation. The most populous municipalities showed the highest number of environmental crimes, and the majority of degraded areas were recovered by planting native seedlings. Atlantic Forest fragments need to be recognized and preserved as an ecosystem with a unique ecological function by the population and public administration.

• Journal of Sensor Science and Technology
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• v.33 no.1
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• pp.40-47
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• 2024

The creation of vertically aligned one-dimensional (1D) nanostructures through the decoration of n-type tin oxide (SnO₂) on p-type chromium oxide (Cr₂O₃) constitutes an effective strategy for enhancing gas sensing performance. These heterostructures are deposited in multiple stages using a glancing angle deposition technique with an electron beam evaporator, resulting in a reduction in the surface porosity of the nanorods as SnO₂ is incorporated. In comparison to Cr₂O₃ films, the bare Cr₂O₃ nanorods exhibits a response 3.3 times greater to 50 ppm H₂S at 300℃, while the SnO₂-decorated Cr₂O₃ nanorods demonstrate an eleven-fold increase in response. Furthermore, when subjected to various gases (CH₄, H₂S, CO₂, H₂), a notable selectivity toward H₂S is observed. This study paves the way for the development of p-type semiconductor sensors with heightened selectivity and sensitivity towards H₂S, thus advancing the prospects of gas sensor technology.

• Journal of Korea Technology Innovation Society
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• v.10 no.3
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• pp.531-554
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• 2007

This paper suggests a new model connecting various knowledge activities through classification systems such as classifications of research, technology, industry, major and job. Although research activities are linked to technology and industry areas or to education and job areas, there is no effort to link these kinds of activities. There are a few studies to link research and technology or research and education respectively. But, there have been no studies to connect technology-industry linkage and education-job linkage. This paper suggests that research area can be a basis of link between technology-industry linkage and education-job linkage. The methods building the links are not simple, but easy; 1) setting up new science/research classification system having two dimensions of research and application, 2) building electronic systems and databases allowing fields for several classification systems, and 3) making rules using multi-dimensional classification systems following the purpose of the programs. The model is designed to meet the needs of nationwide R&D and human resources policies, and for the preparation of knowledge society to grasp the relationship between sequential activities using knowledge. If we know the interactive relationships between various areas, we can trace related phenomena in different activities with restricted information.

• The Korean Journal of Emergency Medical Services
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• v.15 no.2
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• pp.15-26
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• 2011

Purpose: The purpose of this study was to develop and implement the educational program of Life Safety Support for parent. Methods: This study was used to develop children life safety support education program. The education program was utilized as multimedia, practice and discussions to increase understanding and effectiveness of learning. The data for this study was collected from June to December, 2010. There were two forms of evaluations, pretest and posttest with an intervention of education program. The analysis of the collected data was analyzed by descriptive analysis, t-test and paired t-test using the SPSS 10.0 program. Results: 1. the experimental group, who was given an education program before the test, got higher marks on the Life Safety support knowledge than the control group. There was a significant difference in knowledge between experimental group and control group(t=6.678, p=.000). 2. the experimental group got higher marks on the action evaluation than the control group. There was a significant difference in the certainty of action(t=8.546, p=.000) between experimental group and control group. Conclusion: This study examined how Life Safety support education program increased effectiveness in the knowledge and action of children Life Safety support.

• Research in Mathematical Education
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• v.14 no.2
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• pp.173-194
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• 2010

This study examines the differences and similarities of mathematics teachers' subject matter knowledge among England, the Chinese mainland and Hong Kong. Data were collected from a ten-item test in the SKIMA subject matter audit instrument [Rowland, T.; Martyn, S.; Barber, P. & Heal, C. (2000). Primary teacher trainees' mathematics subject knowledge and classroom performance. In: T. Rowland & C. Morgan (eds.), Research in Mathematics Education, Volume 2 (pp.3-18). ME 2000e.03066] from over 500 participants. Results showed that participants from England performed consistently better, with those from Hong Kong being next and then followed by those from the Chinese mainland. The qualitative data revealed that participants from Hong Kong and the Chinese mainland were fluent in applying routines to solve problems, but had some difficulties in offering explanations or justifications.

• Journal of international Conference on Electrical Machines and Systems
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• v.3 no.3
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• pp.272-275
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• 2014

An improved fuzzy Kalman filtering speed estimation scheme was proposed by means of measuring stator side voltage and current value based on vector control state equation of induction motor. The designed fuzzy adaptive controller conducted recursive online correction of measurement noise covariance matrix by monitoring the ratio of theory residuals and actual residuals to make it approach real noise level gradually, allowing the filter to perform optimal estimation to improve estimation accuracy of EKF. Meanwhile, co-simulation scheme based on MATLAB and Ansoft was proposed in order to improve simulation accuracy. Field-circuit coupling problems of induction motor under the action of vector control were solved and the parameter optimization accuracy was improved dramatically. The simulation and experimental results show that this algorithm has a strong ability to inhibit the random measurement noise. It is able to estimate motor speed accurately, and has superior static and dynamic characteristics.

• Journal of The Korean Association of Information Education
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• v.6 no.1
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• pp.110-116
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• 2002

This paper presents the cyber education system which aims to improve the effect of cyber education that remains limited by uniform educational course being provided to all students. In this respect, a cyber English educational program has been provided to all individual students in different levels through combining CRM with WBI. The paper has analyzed the academic interest of each learner in the process of education using the algorithm that this paper proposes. Here the CRM algorithm enables the study to categorize the degree of learners interest in the process of education and utilize this in cyber education. The frame of education program based on the students' interest which is introduced in the paper is expected to contribute as one of the cyber education strategies that will increase the learners' academic interest.