• Journal of the Korean Society of Earth Science Education
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• v.7 no.2
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• pp.276-285
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• 2014

The purpose of this study is to investigate the pattern and characteristics of elementary school teaching and learning processes in science based classes. The study participants' class was recorded in video and instructional conversation transcription. The pattern of the observed class was analyzed using the classification frame suggested by Mogan &Saxton(2006). In result, the questioning for elicit information was most frequent and questioning for shape understanding and the questioning for press for reflection in its priority. In result, the presence of elicited questioning for the attainment of knowledge and understanding is more prominent in science-based classrooms. It was revealed that the participating teachers used the questioning sentence pattern more frequently and the self-sustained inquiry that accelerates creative thinking of the student was lacking. It was discovered that teaching elicited questioning, which accelerates creative thinking, as well as fact confirmation pattern is a necessary element of training for teachers.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.21 no.45
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• pp.347-356
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• 1998

For assessing the capability of a process, the quantification of process location and variation is central to understanding the quality of units produced from the manufacturing process. Conventional process capability indices is insufficient to drive out the information for process condition, furthermore it is very difficult to evaluate the process capability accurately when the target value is not consistent with the center of specification, and/or the shape of distribution is changed, but the process incapability indices is enable to provide more detailed information to evaluate the process capability by dividing information about the process mean and variance. In this paper, we have a brief review and comparison about these indices, provide an understanding of the relationships between the process capability indices and the incapability indices. And we explore the strengths and weakness of these indices as they apply to normally distributed process, and to examine the effect that non-normality has on these indices.

• Journal of Korean Association for Spatial Structures
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• v.24 no.1
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• pp.65-72
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• 2024

This paper aims to advance our understanding of extensible beams with multiple cracks by presenting a crack energy and motion equation, and mathematically justifying the energy functions of axial and bending deformations caused by cracks. Utilizing an extended form of Hamilton's principle, we derive a normalized governing equation for the motion of the extensible beam, taking into account crack energy. To achieve a closed-form solution of the beam equation, we employ a simple approach that incorporates the crack's patching condition into the eigenvalue problem associated with the linear part of the governing equation. This methodology not only yields a valuable eigenmode function but also significantly enhances our understanding of the dynamics of cracked extensible beams. Furthermore, we derive a governing equation that is an ordinary differential equation concerning time, based on orthogonal eigenmodes. This research lays the foundation for further studies, including experimental validations, applications, and the study of damage estimation and detection in the presence of cracks.

• Journal of The Korean Association For Science Education
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• v.13 no.2
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• pp.219-229
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• 1993

The purpose of this study is to investigate college science students' and science teachers' understanding of chromosomal behavior in the context of cell division. The research problems were as follows: 1. What is the level of college science students' understandings of chromosomal behaviors? 2. What is the level of science teachers' understandings of chromosomal behaviors? 3. What is the level of understanding by grade and major area? The sample consisted of 28 sophomore, 17 junior and 23 senior biology students; and 23 middle school science teachers and 14 high school biology teachers. The instrument of the study was a short answer required paper and pencil test. The results of the study were as follows: 1) About 15 percent of the sample could not count the number of chromosome in a cell in appropriate. 2) Seventy percent of the students, and 80 percent of the teachers identified homologous chromosomes as ones with the similar shape and size, and 30 percent of the whole sample could not pair two homologous chromosomes. 3) About 70 percent of the students and 30 percent of the teachers could not mark corresponding allele on chromosome. 4) Biology major students showed higher understanding of overall chromosomal behaviors than non Biology students. Based upon the results, some implications were made. The major one was a development of a teaching model in which students can improve the ability to connect chromosome theory to mendelian genetics.

• Archives of design research
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• v.16 no.3
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• pp.111-122
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• 2003

We must not consider a culture as means of economy. Specially, it is not possible that is supposed to incorporate a cultural identity in a shape of product, but also international competitiveness can not be raised by it. Because an identify is based on the system of symbol such as language, it can be understood only in a same cultural area. While, the value-in-use of technology can be accepted universally as a formative language of international style. Therefore, the competitiveness of design will say as a special quality that can be acquired in connection with technology. For instance, that Korean mobile telephone could be recognized worldwide is not because it has the Koreanized shape but has a high technology. The public have only a superficial understanding about design. Because that is limited in the visual aspect of product, so called 'the pretty design', which exclude the value-in-use and the organic correlation of form and function in general, it may be a cause of socio-ethical dysfunction. It is providing an elbowroom for making a mistake that can regard the product design as an artistic experiment and try to raise the international competitiveness simply with the visual aspect. And the distorted understanding about design has been diffused rapidly owing to spread of black box products because the over-designed shape is known to the public as a proper result of designing. That reorganize the design category will do as a starting point that can get rid of such a misunderstanding, and do to achieve an ideological role of design for human and society. And it will be a warning to the moral slackening that is due to regarding a style as means of competitiveness and the blindness due to thinking culture as means of economy, and we may expect to offer a basic understanding about design which can prevent products from being visualized.

• Korean Institute of Interior Design Journal
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• no.36
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• pp.121-127
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• 2003

The purpose of this study is to examine how the interior improvement of department store would affect costumers' behavior The marketing field that is aimed to maximize consumption is required to recognize the strategy about the environment that promotes consumption and products values. The places where to appear intensively and largely are department stores; they have to Provide diverse kind of products, services, and pleasant circumstances for shopping. Therefore, the goal of this research is based on studying customers behavior that is distinguished cause in selling space in the department store. First, to notice the meaning of consumption to the modern society, secondly, to analyze how customers behave differently according to various shape of selling spaces, thirdly, with precise understanding of buyers consumption behavior, to suggest the fundamental information In department merchandizing planning for maximized selling.

• Journal of the Korean Society of Industry Convergence
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• v.3 no.1
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• pp.29-36
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• 2000

In order to reduce a aerodynamic drag of the rear, body, effects of rear lower end configuration of a vehicles were investigated by measuring the pressure distribution, visual flow phenomena by the use of digital image processing technique. The use of flow visualization in recent years has improved the general understanding of structure of complex flow and has yielded valuable information for analyzing fluid flow. As the results, it was found that the shape of rear lower part vehicles not only effected on the pressure distribution of the rear part of the vehicle but also difference of the flow phenomena.

• Journal of the Korean Society of Industry Convergence
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• v.2 no.1
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• pp.121-130
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• 1999

It is necessary to measure pressure, temperature, chemical equilibrium and the shape of flame in order to understand the combustion process in a combustion chamber. In particular, the flame formulation and combustion process of divided combustion chamber are different from those of a single chamber, And the variable diameter of a jet hole can effect not only physical properties like ejection velocity, temperature and time of combustion but also a chemical property like the reaction mechanism. Accordingly temperature is one of the most important factors which influence the combustion mechanism. This paper observed shape of flame by using the schlieren photographs and measured the pressure in a combustion chamber and the reaching time of the flame by ion probe By doing these, we investigation the formulation of the flame and the process of propagation. These measurement methods can be advanced in understanding the combustion process and process and propagation of flame.

• Journal of the Korean housing association
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• v.11 no.2
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• pp.75-83
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• 2000

The purpose of this study was to analyze spatial characteristics of Chinese traditional residents. This study was carried out in order to have a clear understanding of how cultures of neighboring countries influence Korean residential history and to grasp an objective view on characteristics of Korean houses by comparing and contrasting the characteristics of Chinese residents. This survey was conducted by observing, interviewing, taking pictures and analyzing the pictures that were taken on the real spot. Additional data were collected by participating the seminars of Chinese experts on the traditional house. The spatial layouts and function of Chinese traditional house were analyzed by using pictures, sketches and data which were gathered by interviewing and observing. The shape of Chinese traditional unit plans of houses is basically linear. By repeating this linear shape in the south.north and east.west side, various shapes are formed as an outcome. tangwu and woshi, the living space of Chinese traditional house are strictly hierarchical.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2010.03b
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• pp.28-28
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• 2010

The higher the short circuit currents, the faster the interruption takes place. For increasing the interrupting performance of the MCCB, it is important to design optimally the adjustable tripping device, the open /shut mechanism, and the arc quenching room in the MCCB. This paper is focused on understanding the interrupting performance, more specifically of the grid and the fix contact, based on the shape of the arc quenching room in the current MCCB.