• The Journal of Korean Physical Therapy
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• v.30 no.4
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• pp.123-128
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• 2018

Purpose: This study examined the effects of neuromuscular electrical stimulation (NMES) and horseback riding using a robotic device on the trunk muscle activity and gross motor function in children with spastic diplegia. Methods: Children with spastic diplegia were divided into two groups: an experimental group (NMES and horseback riding using a robotic device [n=10]) and a control group (placebo NMES and horseback riding using a robotic device [n=10]). Each group received general physical therapy and occupational therapy. Each intervention involved the administration of NMES for 15 minutes and horseback riding using robotic device therapy for 15 minutes three times a week for 4 weeks. The evaluation included both the rectus abdominis muscles (RA), external oblique muscles (EO), thoracic paraspinal muscles (TP), and lumbar paraspinal muscles (LP) activity and GMFM. Results: The RA, EO, TP, and LP muscle activity, GMFM C, D, and E were increased significantly in the experimental and control groups. A significant increase in both the TP muscle activity and GMFM D was observed in the experimental group compared to the control group. Conclusion: This study showed that horseback riding using a robotic device is an effective intervention for trunk muscle activity and GMFM in children with spastic diplegia. However, if NMES is added to the back muscles, it is possible to further increase the thoracic paraspinal muscle activity and standing ability.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.21 no.2
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• pp.141-150
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• 2014

Purpose: This was a study on the expiration date of Ethylene Oxide (EO) gas sterilization and effects of the environmental factors of temperature, humidity and type of cabinet in sterile goods storage area on the expiration date. Methods: Sterile goods storage areas from 13 departments in one hospital were selected and 455 EO gas sterilization samples were prepared and kept in those areas over the 14 months of the study. Each sample was tested with a microbiological culture in the laboratory every week. If the result was positive, the sample was regarded as contaminated. The researcher visited once a month to check the temperature, humidity and type of cabinet. Results: With the exception of 1 sample which was positive at 56th week. 454 samples were confirmed as negative. The environment of the samples storage area was measured monthly. The annual average temperature was $24.2{\pm}1.6^{\circ}C$, and the mean relative humidity $34.7{\pm}15.2%$. The types of cabinet were 7 open and 6 closed. Conclusion: The results of the microbiological culture at 13 months showed that none of the samples were contaminated. Therefore the hospital's existing Expiration Date can be extended from 6 months to 13~14 months.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2007.11a
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• pp.433-433
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• 2007

In this paper, we investigated the feasibility of applying ZnO:Al films to display devices as transparent electrodes, and reported the electro-optical (EO) characteristics of VA cells using ZnO:Al electrodes and compared them with those of VA cells using ITO electrodes. The experiment results show that a uniform vertical LC alignment and a large pretilt angle were achieved. Also, the good voltage-transmittance curve, response time, and capacitance-voltage characteristics were observed for the rubbing aligned VA-LCD using ZnO:Al electrodes m comparison with ITO electrodes. In other words, the vertical alignment mode based on the ZnO:Al electrodes showed appropriate electro-optical characteristics and high transparency in comparison with that based on the ITO electrodes. These results indicated that the transparent ZnO:Al electrodes of the liquid crystal displays could substitute the ITO electrodes.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.125-126
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• 2011

본 논문은 방열판 재질에 따른 열 해석에 관한 것으로서 구리와 알루미늄 재질의 방열판에 LED를 배치하여 COMSOL Multi physics를 사용한다. 시뮬레이션 결과 구리 재질의 방열판이 알루미늄 재질의 방열판보다 Min. 온도가 약 $20^{\circ}C$ 높게 측정되었다. 실험결과 실제 제작을 하지 않고 시뮬레이션을 통해 열해석이 가능함을 확인하였다.

• 한국정보디스플레이학회:학술대회논문집
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• 2007.08a
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• pp.506-508
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• 2007

We studied the nematic liquid crystal (NLC) alignment capability with a new alignment method utilizing an inkjet printed polyimide (PI) layer. A good, uniform LC alignment was achieved by the good PI printing using a new alignment method. The pretilt angle generated on the printed PI layer using the alignment method was almost the same as that on printed PI layer using rubbing alignment method. In addition, the good electro-optical performances of the new aligned twisted nematic (TN) cell with printed PI surface was obtained

• Proceedings of the Materials Research Society of Korea Conference
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• 1998.08a
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• pp.55.1-55
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• 1998

• Proceedings of the KAIS Fall Conference
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• 2008.05a
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• pp.170-172
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• 2008

본 논문은 LED조명기구의 상용화에 문제가 되고 있는 방열설계에 관한 논문으로서, CF-design을 이용한 방열해석을 통하여 문제해결의 방법을 제시한다. 해석 결과 시뮬레이션 값과 시작품 제작 후 측정 온도와의 차이가 6[$^{\circ}C$]이하로 도출되었으며 주어진 제 요소들을 잘 활용하면 실제작품의 목표치에 근접하는 결과를 얻을 수 있다.

• Korean Journal of Plant Resources
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• v.30 no.3
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• pp.265-271
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• 2017

In this study, we elucidated the molecular mechanism of silymarin by which silymarin may inhibits cell proliferation in human colorectal cancer cells in order to search the new potential anti-cancer target associated with the cell growth arrest. Silymarin reduced the level of c-Myc protein but not mRNA level indicating that silymarin-mediated downregulation of c-Myc may result from the proteasomal degradation. In the confirmation of silymarin-mediated c-Myc degradation, MG132 as a proteasome inhibitor attenuated c-Myc degradation by silymarin. In addition, silymarin phosphorylated the threonine-58 (Thr58) of c-Myc and the point mutation of Thr58 to alanine blocked its degradation by silymarin, which indicates that Thr58 phosphorylation may be an important modification for silymarin-mediated c-Myc degradation. We observed that the inhibition of ERK1/2, p38 and $GSK3{\beta}$ blocked the Thr58 phosphorylation and subsequent c-Myc degradation by silymarin. Finally, the point mutation of Thr58 to alanine attenuated silymarin-mediated inhibition of the cell growth. The results suggest that silymarin induces the cell growth arrest through c-Myc proteasomal degradation via ERK1/2, p38 and $GSK3{\beta}-dependent$ Thr58 phosphorylation.

• The Magazine of the IEIE
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• v.30 no.9
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• pp.28-28
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• 2003

SoC(System on Chip)의 발전은 현재 널리 쓰이는 기존의 설계 방법론으로는 해결될 수 없는 여러 가지 문제들을 생성하고 있다. 제품의 복잡도는 급격히 증가하는 반면 제품 수명은 지속적으로 감소하고 있으며, 기존 구현 기술의 향상만으로는 해결하기 쉽지 않은 VDSM (Very Deep Sub-Micron) 문제 또한 새로이 도출되고 있는 실정이다. 이러한 문제들은 적기에 시장에 제품을 출시하는 데에 많은 어려움을 끼치게 되기 때문에, 기존의 방법론을 뛰어 넘는 새로운 설계 방법론을 위한 많은 연구들이 활발히 진행되고 있다. 이러한 방법론 중 효율적인 한 방안으로 "재사용"의 개념이 대두되고 있으며, platform-based design은 이러한 재사용의 개념을 SoC 설계에 효율적으로 적용할 수 있는 방법으로 많은 관심을 받고 있다. 본 논문은 이러한 platform-based design의 최근 동향 및 현재 삼성전자에서 추진하고 있는 platform-based design에 대해 기술한다.

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.2
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• pp.298-302
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• 1994

This study is carried out in order to investigate to the physical property of Castella. The material is 19 kinds of Castella on the market in Kyushu area.As an result of the sensory evaluation for Castella, it could be classified into 3 types ; a) high grade, C) low grade, and B) midium grade.The results are summarized as follow. The water content of 3 type Castella was most 26-30% but Korea's was more lower . ΔE of A an dB type Castella was similiar , but A and C types was very different. in the Creep test, 3 types are all the 6-element Voigt model, consisting of Hookean body , Newtonian body and two sets of Voigt body. Eo of A type is 13-36% higher than other types. The parts of retardation strain of A type are 21-41% lower than B type, 8-13% higher than C type, respectively.