Netsu Sokutei
Online ISSN : 1884-1899
Print ISSN : 0386-2615
ISSN-L : 0386-2615
Volume 32, Issue 1
Displaying 1-12 of 12 articles from this issue
  • Kimio Isa, Takashi Hashiba
    2005 Volume 32 Issue 1 Pages 2-7
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
    Education in elementary and junior high schools is reviewed and discussed in relation with heat and energy. There are many subjects concerning heat and energy, especially in elementary schools. They are estimated to amount to about 46% of the total content of science. Many experiments, while feasible only with simple apparatuses and by pupils themselves, help them to construct diverse concepts about things. It is important to make them have such experiences at their early stage in the schools. There are many educational materials as well which are potentially to be changed in future, and supports are needed to the education in schools.
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  • Necessity of Basic Education on Thermodynamics
    Haruhiko Tanaka, Nobuyoshi Koga, Yoshihiro Furukawa
    2005 Volume 32 Issue 1 Pages 8-11
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
    By reviewing the current curriculum of high school science, the status of heat and energy education was analyzed. In spite of the importance of heat and energy education for fostering scientific literacy required in daily life, the comprehensive education on heat and energy is weakened by an optional system of science subjects at high schools. For promoting education on “Science and Technology for the Environment and Society (STES)”, it is required to develop teaching materials and educational programs on energy-environment education in addition to the introduction of a compulsory science subject for the first year class at high school.
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  • Toshiharu Takizawa
    2005 Volume 32 Issue 1 Pages 12-19
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
    Oral tests have been effectively introduced in the lessons of undergraduate experimental physics at Gunma University. We show questions and answers actually exchanged with students concerning the basic concepts of thermodynamics, and show student's weak point in their understanding of energy and entropy. Considering the actual ability of students, we have improved our lecture courses by introducing demonstration experiments. Those demonstrations are powerful for students to acquire right concept of thermodynamics, when suitable explanations concerning the history of thermodynamics are given at the same time. Finally, we emphasize the importance of viewpoint based on the thermodynamic concepts in future university education.
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  • A Retired Teacher's Reflection with a Tested Recipe for a Demonstration Experiment in an Introductory Class
    Takasuke Matsuo
    2005 Volume 32 Issue 1 Pages 20-25
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
    Thermodynamics is taught in universities and colleges as a part of physical chemistry or general chemistry. It is a basic discipline and is required in later studies when the students specialize in various fields of science and engineering. There are different organizations of thermodynamics courses with respect to how the entropy is introduced: the traditional Carnot-Clausius-Kelvin-Planck approach, the axiomatic Caratheodory approach, the formal approach by Callen, and Boltzmann's statistical definition of entropy and Gibb's statistical mechanics. The author finds the combination of the traditional approach and elementary statistical method the most accessible for students in introductory thermodynamics courses. Based on the belief that the lack of thermal events in our daily experience in which the entropy is conserved lies at the core of the difficulty we have when we try to understand the entropy concept, the author has contrived an experiment for demonstration in thermodynamics courses in which the temperature of an elastic rubber band is measured as it heats and cools in response to elongation and contraction. Reversibility of the temperature change demonstrates the existence of a conserved quantity, other than the energy, in this thermal event. Connection of this experiment with the Carnot cycle and the Boltzmann entropy is made complete by the knowledge of the random structure of rubber polymers.
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  • Nobuyoshi Koga, Yasuhisa Yamamura, Kazuya Saito, Yuko Nishimoto, Haruh ...
    2005 Volume 32 Issue 1 Pages 26-27
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
    The Significance of education on calorimetry and thermal analysis for undergraduate students was discussed, and the necessity of developments of teaching materials for laboratory classes was pointed out. As the examples of such teaching materials, (1) Thermal Analysis of Phase Behavior of KNO3, (2) DSC of PET (poly(ethylene terephtalete)), and (3) Thermal Decomposition of Basic Copper (II) Sulfate were introduced in a format of reference material for students at universities.
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  • Y. Yamamura, K. Saito
    2005 Volume 32 Issue 1 Pages 28-29
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
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  • Y. Nishimoto
    2005 Volume 32 Issue 1 Pages 30-31
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
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  • N. Koga, H. Tanaka
    2005 Volume 32 Issue 1 Pages 32-33
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
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  • Shoji Ichihara
    2005 Volume 32 Issue 1 Pages 34-39
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
    To explain the roles of thermodynamics and the measurements of thermal properties in a Japanese chemical company, four brief reviews related to thermal behaviors and the evaluations for them were shown. Thermodynamics and thermal characterization will be able to play important roles in many companies, though it is not yet well recognized because many researchers have not sufficient knowledge about thermal behaviors of materials.
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  • Iwao Katayama, Dragana Zivkovic, Dragan Manasijevic, Toshihiro Tanaka, ...
    2005 Volume 32 Issue 1 Pages 40-44
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
    Activity of tin in liquid Sn-Bi-Sb was derived by EMF measurement of galvanic cell with fused salts electrolyte in the temperature range of 700 to 1000K in the whole composition range. Activity of tin at 900K shows very small positive deviation from Raoult's law for Sn-Bi alloys and moderately negative deviation for Sn-Sb alloys. Activity of ternary alloys along SbyBi(1-y)-Sn (y=0.25, 0.50 and 0.75) shows negative deviation and the deviation becomes large with increasing Sb content. Excess free energy of mixing is derived using Darken's method for Gibbs-Duhem equation and the values are compared with those by model calculations based on the three constitutive binary data.
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  • Kunitsugu Soda
    2005 Volume 32 Issue 1 Pages 45-50
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
    It is described that genomic-DNA sequence analyses of many living organisms have been completed, and studies on structural and functional genomics are now proceeding. The dual nature of natural proteins is remarked that they have two different aspects of technological and scientific entities, which is distinct from industrial functional elements. Characteristic aspects of the molecular thermodynamic quantities of proteins, and their physical and biological implications are explained including the enthalpy-entropy compensation and the large positive heat-capacity change in protein denaturation. Finally, perspectives on the research of protein thermodynamics at the post-genome era are presented and a possibility of the development of protein science in the expanded sequence space is discussed.
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  • 2005 Volume 32 Issue 1 Pages 51
    Published: January 31, 2005
    Released on J-STAGE: September 07, 2009
    JOURNAL FREE ACCESS
    Download PDF (153K)
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