• Proceedings of the Korean Society of Life Science Conference
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• 2002.03a
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• pp.109-109
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• 2002

• Proceedings of the Korean Society of Life Science Conference
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• 2002.03a
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• pp.113-113
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• 2002

• Proceedings of the KAIS Fall Conference
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• 2008.05a
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• pp.177-179
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• 2008

본 논문에서는 Grafchart의 기본 정의 및 설계 방법을 설명하고, 이 Grafcet와 Petrinet의 차이점을 비교하고 산업용 제어에 응용할 수 있는지를 검토한다. 본 논문에서는 LCD 장비중에 LCD의 제공정들을 처리하기 위해 LCD를 이송시키는 캐링 로봇에 Grafchart를 적용하고 그이 타당성을 확인하였다.

• Proceedings of the Korean Society of Crop Science Conference
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• 2022.04a
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• pp.137-137
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• 2022

• Monthly Duck's Village
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• s.243
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• pp.16-19
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• 2023

대한민국 최대 오리 집산지인 전남지역의 방역을 책임지고 있는 정대영 전남도청 농축산식품국 동물방역과장은 규제일변인 방역업무를 담당하고 있음에도 불구하고 전남지역 오리농가의 칭송을 받고 있다. 원칙적인 차단방역사항을 농가들에게 늘 이야기 하고 당부하는 정 과장이지만 오리농가들의 어려움을 경청하고 보다 현실적인 방역대책을 세우는데 열심히기 때문이다. 정 과장을 직접 만나 고병원성 AI를 막기 위한 농가들의 방역사항 철칙을 들어봤다.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.23 no.6
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• pp.265-271
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• 2013

Czochralski (CZ) growth process is one of the most important techniques for growing high quality sapphire single crystal for LED application. In this study, the inductively-heated CZ growth processes for the sapphire crystal of 300 mm length have been analyzed numerically using finite element method. The hot zone structures were modified with the crucible geometry change and the additional insulation layer installed above the crucible. The results show that the solid-liquid interface height decreased from about 80 mm at initial stage to 40 mm after mid-stage due to achieve the growth speed balance. Also the optimal input power of the modified system was similar with the original one due to the compensation effects of the crucible geometry and additional insulation. The crystal temperature grown by the modified CZ grower was increased about 10 K than the original one. Therefore the sapphire crystal of 300 mm height was grown successfully.

• The korean journal of orthodontics
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• v.33 no.2 s.97
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• pp.73-84
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• 2003

This study was performed to find out how much projection errors in the cephalometric measurements were made by vertical head rotation in taking posteroanterior cephalograms. 25 adults without any apparent facial asymmetry or severe sagittal skeletal discrepancy were selected and the posteroanterior cephalograms were taken with the head rotated $5^{\circ},\;10^{\circ}$ superior and inferior each to the reference $position(0^{\circ})$. The 7 height, 5 width and 6 angular measurements were taken at each 5 positions. Through the statistical analysis of all measurements taken at each rotated position, folowing results were obtained.1. The projection errors of height measurements were remarkably target than those of width or angular measure nents. f. Among the height measurements, the farther to the rotation axis the measurements were, the larger the projection errors were. 3. Among the width measurements, mandibular width and mandibular width of mandibular first molars showed significant differences between the values taken at each rotated position, while nasal width, maxillary width and intermolar width of maxillary first molars did not. 4. Among the angular measurements, the angle between horizontal reference line and the line that is connected to crista galli and antegonion or maxillare showed significant differences between the values taken at each rotated Position. The above results suggest that it is needed to the effort to keep constant head position for taking the useful posteroanterior cephalogra, because projection errors are caused by vertical head rotation.

• The korean journal of orthodontics
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• v.35 no.4 s.111
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• pp.251-261
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• 2005

Enlargement is an inherent property of X-rays which occurs when straight hues diverse from small a focal spot. The purpose of the present study was to evaluate the validity of the correction of gonial angle width enlarged on frontal cephalogram, using frontal and lateral cephalograms taken orthogonally from each other. In 40 adult individuals, frontal and lateral cephalograms were taken at a $90^{\circ}$ angle using the Head Posture Aligner. The angle width was measured on the frontal cephalogram and subsequently. the corrected angle width was calculated using the magnification rate of two cephalograms. Measured and corrected angle widths were compared with the measurement from the 3D CT image. The measurement or the frontal cephalogram showed a 9.10mm of enlargement on average ranging from 7.92 to 11.31mm. Corrected angle width measurement showed a 0.14mm difference with the 3D CT image measurement, which was not statistically significant. The results of the study indicate that actual au91e width can be approached through calculation using frontal and lateral cephalograms taken orthogonally with the help of the Head Posture Aligner The study also showed that the magnitude of correction error did not show a significant correlation with the amount of menton deviation, and it suggests that the present correction method is valid even in individuals with severe facial asymmetry.

• Korean Journal of Social Welfare
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• v.64 no.1
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• pp.273-297
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• 2012

Using grounded theory method, this study analyzed the in-depth interviews with 11 parents of institutionalized children in order to find out how the experience of the parents on the process of the children's family reunification. According to the results, it was 'leaving one's child' that composed causal conditions, and also it was 'sentenced life' and 'adapting to a life without child' that composed existing conditions. Thus, the contextual condition was found out as 'a belief of family' and 'a belief of child caring' and the mediation conditions were 'power to recover' and 'not being as one's intentions'. Also, reaction/interaction strategies turned out as 'preparing a basis of child-care', 'playing a parent', 'standing against being adapted' and 'adjusting as their children back to family'. Finally, the analysis showed 'burdens on caring', 'wanting to leave one' child again', 'having stronger family membership' and 'being hopeful in a future' as results. The specific levels of the process were found out as following 4 steps, as time goes by. 1)Fostering children at institutions: become harsh parents(or a harsh parent), 2)After fostering: rebuild collapsed family in order to take the children back, 3)Family reunification: become aboveboard to oneself, family and the world, 4)After family reunification: try to keep the family taking precautions against resending. While taking their children back, the parents turned out to experience long, unremitting tension. Reflecting results of the analysis above, and in order to promote sending institutionalized children back to their families this article suggests practical alternatives for parents who left their children in institutions.

• Journal of Gifted/Talented Education
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• v.22 no.1
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• pp.61-85
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• 2012

The OSPG(Observation Scale for Parents of the Gifted in Korean Traditional and Western Music) is one of the tools for screening of the Gifted in Korean traditional and Western music. So the validity and reliability of the OSPG has an influence on securing validity of the whole identification process. The purpose of this study is to examine the validity and reliability of the OSPG-2 that input screening processing, and to suggest systematization of identification processing for the Gifted in Korean traditional and Western Music. For the achievement of this purpose, this study administered the OSPG-2 to 261 gifted students aged between 13 and 16 in the middle or high school for the arts. To validate the OSPG-2, I analyzed items of the OSPG-2, and conducted the exploratory and confirmative factor analysis. I also examined the internal consistency. As a result of the exploratory factor analysis, I collected 40 items of the OSPG-2 finally. Furthermore, I could identify psychological construct of the Gifted in Korean traditional and Western Music. The consequence of confirmative factor analysis, the model provided good fit to observed data. As a result of reliability analysis, the internal consistency of the internal characteristic verified Cronbach's ${\alpha}$=.939, and the internal consistency of the external environmental characteristic verified Cronbach's ${\alpha}$=.887. This result of validity study reflects the fact that the OSPG-2 is a valid scale and is able to input to gifted educational field instantly.