Chinju, South Korea

Chinju National University of Education is one of several national universities of education in South Korea. It provides training to many planning on careers in the country's public education system. The campus is located in Jinju City, South Gyeongsang province. The current president is Jung Bojoo . Wikipedia.


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Kong Y.-T.,Chinju National University of Education
International Journal of Applied Chemistry | Year: 2016

This study has been investigated the conceptions for university students major in science education on definition and mechanism of electrolysis by a questionnaire. From this result, we found that much of students could not explain electrolysis as an oxidation-reduction reaction or chemical reaction, but they defined it as a separation or decomposition reaction of ions and electrolytes in the solution. Also, they showed little understanding about charge disproportion which was induced by oxidation-reduction reaction on the surface of electrode and a relationship between the migration of ions and overall reaction. It is also obtained that some descriptive mistakes were in Korean chemistry textbooks. And, it could be said that university students were affected by the descriptive mistakes on their concept formation. © Research India Publications.


Kong Y.-T.,Chinju National University of Education | Kang M.-J.,Yangju Elementary School
International Journal of Applied Engineering Research | Year: 2016

This study is to investigate the change of science writing ability between pre-and post-science writing which was written before and after argumentation activity using the social scientific context focusing in biological ethics. The students' scientific writing and argumentation were collected and analyzed based on three domains of scientific writing: scientific thinking, logicality, and creativity. The result of this study showed that the students' writings improved after discussion in all three domains of analysis. The most improved domain with the biggest increase in its frequency was the science ability, especially with two of its sub-domains-scientific knowledge and scientific process. © Research India Publications.


Kim J.Y.,Korea National University of Education | Kim K.S.,Chinju National University of Education | Lockley M.G.,University of Colorado at Denver | Seo S.J.,Chinju National University of Education
Palaeogeography, Palaeoclimatology, Palaeoecology | Year: 2010

Three specimens of sauropod dinosaur skin impressions from footprints in the Lower Cretaceous Jindong and Haman formations are unusual because they are not associated with well-preserved 'host' tracks. This suggests a hitherto unreported mode of preservation in which diagnostic but isolated skin traces may appear associated with substrates where only the superficial layers were originally soft. Two specimens from the Haman Formation of Gainri and Sinsu Island reveal large pentagonal to heptagonal scale impressions (size 2.0-2.5. cm). Another specimen from the Jindong Formation of the Deokmyeongri area is an extremely well-preserved, honeycomb-like pattern of hexagonal scale impressions, but an adjacent part reveals pentagonal to heptagonal polygons of variable size. Collectively these skin impressions more than double the sparse record of sauropod skin impressions and show that patterns (morphology) are consistent from the Jurassic to the Cretaceous. Although comprehensive syntheses have yet to be attempted, skin traces are amendable to systematic description using tubercle size, shape, thickness, and inter-tubercle groove thickness. Such features are useful for distinguishing the different morphologies of dinosaurs and other vertebrates that lived in Korea and other regions during the Mesozoic. Dinosaur skin impressions have occasionally been confused with glypogryptids, typical deep sea feeding traces, small desiccation cracks, and small load casts which they superficially resemble. To avoid such confusion we enumerate criteria useful for distinguishing dinosaur skin impressions from similar shaped invertebrate trace fossils and inorganic sedimentary structures. These criteria vary in importance but include preservation, morphology, dimension of morphology, depositional environment, deformation of underlying sediments, uniformity of size and shape of individual scale impressions within single specimens, ornamentation, and geological age. © 2010 Elsevier B.V.


Shabir M.,Quaid-i-Azam University | Jun Y.B.,Chinju National University of Education | Nawaz Y.,HITEC University
Computers and Mathematics with Applications | Year: 2010

Generalizing the notions of (ε, ∈ Vq)-fuzzy ideal, (ε, ∈ Vq)-fuzzy quasi-ideal and (ε, ∈ Vq)-fuzzy bi-ideal, the concepts of (ε, ∈ Vqk)-fuzzy ideal, (ε, ∈ Vq k)-fuzzy quasiideal and (ε, ∈ Vqk-fuzzy bi-ideal are defined. Different classes of semigroups are characterized by the properties of these fuzzy ideals. © 2010 Elsevier Ltd. All rights reserved.


Kong Y.-T.,Chinju National University of Education | Park S.-J.,Sodab Elementary School
International Journal of Applied Engineering Research | Year: 2016

This study is to incorporate inquiry-based questions in science assessment and analyzes student’s responses in purpose of evaluating scientific inquiry abilities of fifth and sixth grade students in Korea. It aims to assess students’ performances on inquiry-based evaluation and to develop guidance on teaching for development of inquiry skills. This study focuses on the result about an earth and universe domain. To fulfill the research goal, the study is carried out as followed. The chosen research subjects were 421 fifth and 777 sixth graders from seven elementary schools in Korea. The assessment questions were devised by modifying and reinforcing the NAAA developed by NIER (Japan) to incorporate inquiry-based learning and correspond to 2007 amendment of national science education curriculum in Korea. From the result, we could be concluded that the inquiry-based science assessment helped develop students’ inquiry skills, and it was determined to be an adequate evaluation method for building scientific knowledge and concepts for students. © Research India Publications.


Kong Y.T.,Chinju National University of Education
International Journal of Applied Engineering Research | Year: 2014

An amperometric biosensor modified with a membrane-covered peroxidase and a ferrocene-embedded carbon paste (HRP-Fc-CP) electrode was applied for the highly sensitive analysis of a trace amount of phenols. In this research, various experimental parameters were optimized (content ratio of HRP, pH of solution, temperature of solution, interference, incubation time and temperature, and stability of the electrode). From the results, optimum experimental conditions were as follows: the content ratio of the HRP was 5%, the pH of the solution was 6.5, the temperature of the solution was 35□, and storage temperature was 4□. © Research India Publications.


Kong Y.-T.,Chinju National University of Education
International Journal of Applied Engineering Research | Year: 2014

For this study, we developed a STEAM program on Air Pollution, which focuses on the control of air pollution and the changes of production processes in Green and Sustainable Chemistry (GSC). This study mainly deals with ascertaining the change in concepts toward air pollution among senior high school students. The STEAM program on Air Pollution includes three worksheets (WS 1, WS 2, and WS 3), and a reference and study history sheet (SH sheet) based on a one-page portfolio assessment (OPPA). The revised version (Korean) of the Air Pollution program was implemented in a senior high school. The results of this study are as follows. The STEAM program on Air Pollution is effective for senior high school students to conduct enthusiastic investigative activity and to develop favorable attitudes towards science and technology. Enabling students to obtain information about historical facts, including their study of scientists, engineers, and the GSC approach, gave them confidence in Science and Technology, and stimulated the development of scientific perspectives and attitudes. © Research India Publications.


Park J.-H.,Chinju National University of Education
New Physics: Sae Mulli | Year: 2015

The diffuse dielectric anomaly properties of (Pb0.98La0.02)(Zr0.95Ti0.05)O3(PLZT-2/95/5) ceramics were studied by using dielectric spectroscopy methods at temperatures ranging from 20 °C to 650 °C and frequencies between 100 Hz and 106 Hz. It was noted that diffuse dielectric anomaly was observed in the complex dielectric constant at temperatures between 300 °C and 500 °C. We propose a model to explain this phenomena for the diffuse dielectric anomaly. Frequency-dependent characteristic of the dielectric constant at measuring temperature range from 300 °C and 500 °C in the PLZT-2/95/5 ceramic was well satisfied the equation, such as ε (Equation). Finally, the adopted model is satisfactory in rationalizing the diffuse dielectric anomaly at temperatures above the phase transition temperature of PLZT-2/95/5 ceramic.


Park J.-H.,Chinju National University of Education
Korean Journal of Materials Research | Year: 2012

Glasses were prepared with compositions of (13-x)BaO-80B 2O 3-7Li 2O·xSm 2O 3, BBLSx(x=0.5, 0.4, 0.3) by melting the starting materials of boron oxide(99.9%), lithium oxide(99.9%), barium carbon oxide(99.9%), and samarium oxide(99.9%) and then quenching the melt at 1350°C. This led to good-quality BBLSx(x=0.4, 0.3) and poor-quality BBLSx(x=0.5) glasses. The physical and structural properties of the BBLSx glasses were studied by means x-ray diffraction, scanning electron microscopy(SEM), differential scanning calorimetry(DSC), and dielectric spectroscopy. From the x-ray diffraction and SEM results, the quality of the BBLSx glasses significantly depends on the Sm 2O 3 concentration. The x-ray diffraction pattern showed that the crystallites in the BBLSx glasses after heat treatment at 700°C may be LiBaB 9O 15. From the DSC results, the glass transition temperatures(T g), crystallization temperatures(T c), and the maximum temperatures of the crystallized(T p) BBLSx glasses all changed with the Sm 2O 3 concentration. According to the dielectric spectroscopy results, the values of the real dielectric constant and Tan δ of the BBLSx glasses depended on the Sm 2O 3 concentration. The values of the real dielectric constant and Tan δ were also shown to depend on the measuring temperature, possibly due to the ion migration in the bulk of the BBLSx glasses.


Kong Y.-T.,Chinju National University of Education
International Journal of Applied Engineering Research | Year: 2016

This study is to investigate the influence of students’ family background factors on the international science achievement using the results of both TIMSS 2003 and 2007. The results of this study are as follows. First, we were able to pinpoint the students’ family background factors that significantly influence students’ science achievement. Among those factors, high rates of book possession and usage of computers at school and at home had a positive effect on science achievement, while high frequency of homework assignments had a negative effect on it. Second, this study demonstrates that students’ science achievement is not only influenced by their educational environment, but also by other factors like their family backgrounds. © Research India Publications.

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