• Journal of The Korean Association For Science Education
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• v.21 no.3
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• pp.558-565
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• 2001

The purpose of present study is to examine the science attitude level of middle school, high school and university students, and to provide the suggestions for science education. Instrument to invent science attitude consists of four domains as 'Scientific Inquiry', 'Importance of Contribution to Science', 'Normality of Scientist', and 'Social Value of Science'. Inventory instrument have 20 items(Likert scale of 1 to 5). Subjects are 70 middle school, 72 high school, and 95 university students. There is no significant difference among students by school, but the attitude level toward science of female students is lower than that of male students. 'Importance of Contribution to Science' among four domains has the highest score of attitude toward science, whereas 'Normality of Scientist' has the lowest attitude score toward science. To bring up scientific abilities of students, we conclude that it needs the educational plan to increase science attitude of students, through improving and developing curricular system and science curriculum for the secondary school and university.

• Journal of Korean Elementary Science Education
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• v.22 no.2
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• pp.173-180
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• 2003

The purpose of this study was to investigate about current status of science field study in elementary schools. A total of 72 elementary teachers in Busan and Gyungnam districts were involved and the data from questionnaire was gathered. The questionnaire was comprised two parts: items on general level include the epistemological aspect and actual condition and items on concrete level according to chapters of elementary school science curriculum. The major findings are as follows: 1. Many teachers cognize the requirement of science field study in 7th Korean elementary school science curriculum is larger than 6th one. But they respond the actual number of science field study in 7th curriculum is nearly equal to 6th. 2. In analysis to grades, the actual number of field study decrease as grade is high. 3. In the science content aspects, the requirement of field study is the largest on biology domain and earth science domain. 4. Many teachers have pointed out “the difficulty of administration for field study” and “inappropriated surrounding of their school” as the problems of science field study in elementary school.

• Proceedings of the Korean Powder Metallurgy Institute Conference
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• 2006.04a
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• pp.41-42
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• 2006

• Proceedings of the PSK Conference
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• 2001.04a
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• pp.123.2-124
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• 2001

• Proceedings of the Korean Society of Medical Physics Conference
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• 1999.11a
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• pp.320-322
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• 1999

• Proceedings of the Korean Society of Medical Physics Conference
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• 1999.11a
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• pp.327-329
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• 1999

• Proceedings of the Plant Resources Society of Korea Conference
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• 2001.11b
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• pp.68-69
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• 2001

• Proceedings of the Korean Vacuum Society Conference
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• 2008.08a
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• pp.285-285
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• 2008

• 대한생식의학회:학술대회논문집
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• 2005.06a
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• pp.122.2-123
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• 2005

• Current Optics and Photonics
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• v.6 no.4
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• pp.359-366
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• 2022

In this paper, we present a new design for angle-sensitive pixels (ASPs). The proposed ASPs take advantage of subwavelength compound gratings to capture the light angle, which enables pixel size to reach the wavelength scale of 0.7 ㎛ × 0.7 ㎛. The subwavelength compound gratings are implemented by the wires of the readout circuit inherent to the standard complementary metal-oxide-semiconductor manufacturing process, thus avoiding additional off-chip optics or post-processing. This technique allows the use of two pixels for horizontal or vertical angle detection, and can determine the light's angle in the range from -45° to +45°. The proposed sensor enables surface-profile reconstruction of microscale samples using a lensless imaging system.