• Korean Journal of Child Studies
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• v.26 no.5
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• pp.331-350
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• 2005

The study examined the effects of an intervention program based on reflective thinking on mother-child interaction behaviors. Three mothers with problematic mother-child interactions and their 4-year-old socially delayed boys participated in the program that consisted of four main activities like journal and video feedback, lectures on interactive strategies, mother-child interactive play and program evaluations and ran for twenty 120 minutes weekly sessions. The level of reflective thought was determined by analyzing interview transcripts, journal entries. The videotaped mother-child interaction behaviors were rated by the Maternal Behavior Rating Scale and Child Behavior Rating Scale. It was concluded that the program enhanced mother's reflection on mother-child interactions and changed interaction behaviors of 3 mother-child pairs positively.

• Korean Journal of Child Studies
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• v.28 no.3
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• pp.251-266
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• 2007

The Making-books Program(Byun, unpublished) uses the Arts PROPEL approach based on multiple-intelligences theory(Gardner, 1983). PROPEL is a loose acronym for production, perception and reflection, 3 stages in the learning process. The Making-books Program includes designing rubrics, making-books, and publishing. Effect of the program on creativity was examined by before- and after-testing by TTCT. Participants were 63 7-year-old children with 30 children in the experimental and 33 children in the control group. On the pre-test, there was no between groups difference in the participants' creativity on the TTCT. After 21 treatments, the effectiveness of the Making-books Program was shown by significant between group differences on the post-test.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2003.05d
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• pp.45-48
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• 2003

BiSrCaCuO thin films were fabricated by atomic layer-by-layer deposition using an ion beam sputtering method. 10 wt% and 90 wt% ozone mixed with oxygen were used with ultraviolet light irradiation to assist oxidation. At early stages of the atomic layer by layer deposition, two dimensional epitaxial growth which covers the substrate surface would be suppressed by the stress and strain caused by the lattice misfit, then three dimensional growth takes place. Since Cu element is the most difficult to oxidize, only Sr and Bi react with each other predominantly, and forms a buffer layer on the substrate in an amorphous-like structure, which is changed to $SrBi_2O_4$ by in-situ anneal.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2005.05a
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• pp.625-628
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• 2005

Silencers are extensively used for reducing noise in an exhaust system of internal combustion Engine and fluid machineries. The prediction and measurement of the transmission loss as the acoustic performance of silencers are important in early design stage. In the measurement of transmission loss, the semi-anechoic terminations are general used for reducing unwanted effects by reflecting wave. However it is very hard to remove reflecting wave perfectly. So the research about the error made by reflecting wave is important. The analysis about errors made by reflections and modification techniques are proposed. For an application example, the diesel particulate filter (DPF) is chosen. The transmission loss of DPF is measured with and without considerations of reflecting wave.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2007.11a
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• pp.23-27
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• 2007

Many trials have been used to model room impulse responses, all attempting to provide efficient representations of room acoustics. The traditional model designs for room impulse response seem to fail in accuracy, controllability, or computational efficiency. In time domain, a room impulse response is generally considered as the combination of three parts having different acoustic characteristics, initial time delay, early reflection, and late reverberation. This paper introduces new learning hybrid model for the room impulse response. In this proposed model, those three parts are modeled using different models with learning algorithms that determine the length or boundary of each model in the hybrid model. By the simulation with measured room impulse responses, it was examined that the performance of proposed model shows the best efficiency in views of both the parameter numbers and modeling error.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.18 no.3
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• pp.361-367
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• 2008

Many trials have been used to model room impulse responses, all attempting to provide efficient representations of room acoustics. The traditional model designs for room impulse response seem to fail in accuracy, controllability, or computational efficiency. In the time domain, room impulse responses are generally considered as combination of the three Parts having different acoustic characteristics, initial time delay, early reflection, and late reverberation. This paper introduces new learning hybrid model for room impulse responses. In this proposed model, those three parts are modeled using different models with learning algorithms that determine the boundary of each model in the hybrid model. By the simulation with measured room impulse responses, the performance of proposed model shows the best efficiency in views of computational burden and modeling error.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2013.06a
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• pp.8-11
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• 2013

스테레오-멀티채널 업믹스(Stereo-to-Multichannel Upmix)기술은 시장의 대부분을 차지하는 스테레오 음원을 홈시어터와 같은 멀티채널 스피커 재생 환경에서 효과적으로 재생하기 위한 채널 포맷 변환 기술을 말한다. 수평적인 공간감뿐만 아니라 수직적인 공간감을 재현하기 위하여 10.2, 22.2채널 환경의 경우 고도 채널이 추가되었다. 본 논문에서는 이러한 채널 환경에서 수직, 수평적인 공간감을 재현하기 위하여 새로운 초기 반사음을 생성하는 알고리즘을 제안하였다. 제안된 알고리즘은 진폭 패닝방법을 이용하여 전방의 가상 음원들에 의하여 발생되는 리시버 위치에서의 음압을 일치시킴으로써 기존 알고리즘이 가지지 못했던 이론적인 배경을 갖는다. 청취 평가 실험을 통하여 제안된 알고리즘은 음장의 수직, 수평적인 폭을 증가시키며, 좀 더 안정적인 음상 정위 성능을 가지는 것을 확인하였다.

• Journal of Korean Neurosurgical Society
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• v.44 no.6
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• pp.392-395
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• 2008

Lateral femoral cutaneous neuropathy occurring during spinal surgery is frequently related to iliac bone graft harvesting, but meralgia paresthetica (MP) can result from the patient being in the prone position. Prone position-related MP is not an uncommon complication after posterior spine surgery but there are only few reports in the literature on this subject. It is usually overlooked because of its mild symptoms and self-limiting course, or patients and physicians may misunderstand the persistence of lower extremity symptoms in the early postoperative period to be a reflection of poor surgical outcome. The authors report a case of prone position-related MP after posterior lumbar interbody fusion at the L3-4 and reviewed the literature with discussion on the incidence, pathogenesis, and possible risk factors related to this entity.

• The Journal of Korean Medical History
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• v.31 no.1
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• pp.1-12
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• 2018

Gyoojoon Lee is a prominent figure of Confucianism and traditional medicine representing southern region of Korea during late $19^{th}$ and early $20^{th}$ century, but studies on his achievements were just started merely a decade ago. We would provide foundation for the further multidisciplinary study on his legacy. We reviewed his chronology, written works, interactions with intellectual figures, and current studies on his works to provide foundations for more thorough research on his legacy. We found he has wide spectrum of studies in medicine, confucianism, literature, humanism and philosophy during the late Chosun dynasty, Korean empire and Japanese colonization period. He wrote twenty five books in diverse fields and was found to have interactions with fifty seven figures with idea during his lifetime which need more detailed examination. Multidisciplinary studies on Gyoojoon Lee is guaranteed for the future in depth study on his works including Buyunglon (theory of supporting Yang).

• Proceedings of the KSR Conference
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• 2007.05a
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• pp.1044-1049
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• 2007

The construction of concrete slab track system is increased because the system has advantages which are maintenance free and so on, the other side, the system has weak points such as increase of the cost of the early stage construction and noise levels. The increment of noise is due to the reflection of generated noise on the slab tracks. Therefore the acoustic-absorptive materials are considered to reduce noise level. It has been made clear that acoustic-absorptive materials are effective for reducing the wheel/rail noise on slab tracks. The important performance of the acoustic-absorptive material is absorption rates and absorption rates are verified for the considered absorber elements using acoustic duct method. In addition, the required provisons for installing acoustic-absorptive block on slab tracks are considered.