• Journal of Korean Neurosurgical Society
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• v.58 no.4
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• pp.393-396
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• 2015

Bullet injuries to the spine may cause injury to the anatomical structures with or without neurologic deterioration. Most bullet injuries are acute, resulting from direct injury. However, in rare cases, delayed injury may occur, resulting in claudication. We report a case of intradural bullet at the L3-4 level with radiculopathy in a 30-year-old male. After surgical removal, radicular and claudicating pain were improved significantly, and motor power of the right leg also improved. We report the case of intradural bullet, which resulted in delayed radiculopathy.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.414-417
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• 2009

재즈의 역사가 이제 100년이 조금 넘은 상태에서 많은 재즈 뮤지션 중 Miles Davis라는 한 인물이 걸어 왔던 음악적 발자취를 재확인하며 Cool Jazz와 Free Jazz등 현대 음악에 많은 영향을 미치고 있는 당시 흐름과 그 안에서 Miles Davis의 위치를 재검토한 결과 기존의 일반적인 사실과 다른 해석이 가능함을 발견하고 그의 음악적 위치를 재즈의 큰 흐름 안에서 재조정하게 되었다. 당시 음악으로서는 획기적일 수밖에 없을 '모드 방식'의 접근과 재즈음악에서 전환점이 있을 때마다 그 중심축으로서의 Miles Davis를 발견하게 되는데 사실상 현대 재즈에까지 연결되는 그의 음악적 성과는 엄청나다고 할 수 있다. 이 연구를 토대로 재즈 역사상 가장 영향력을 가지고 있는 Miles Davis를 다시 돌아 볼 수 있는 기반을 제시 하고자 한다.

• Journal of Korean Society for Quality Management
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• v.32 no.4
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• pp.169-183
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• 2004

The synthetic control chart (SCC) proposed by Wu and Spedding (2000) is to detect shifts in the process mean. The performance was re-evaluated by Davis and Woodall (2002), and the steady-state average run length (ARL) performance was shown to be inferior to cumulative sum (CUSUM) or exponentially weighted moving average (EWMA) chart This paper proposes a simple adaptive scheme to improve the performance of the synthetic control chart. That is, once a non-conforming (NC) sample occurs, we investigate the next L-consecutive samples with larger sample sizes and shorter sampling intervals. We employ a Markov chain model to derive the ARL and the average time to s19na1 (ATS). We also propose a statistical design procedure for determining decision variables. Comprehensive comparative study shows that the proposed control chart is uniformly superior to the original SCC or double sampling (DS) Χ chart and comparable to the EWMA chart in ATS performance.

• Proceedings of the KSME Conference
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• 2007.05a
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• pp.467-472
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• 2007

A modern MEMS resonator is a micro-scale structure operated over a high frequency range. In order to predict its resonant behavior in a design process, High-frequency response analysis (Hi-FRA) is demanded. Algebraic substructuring (AS) is known as a fast numerical technique to construct an eigenspace for FR and frequency sweep (FS) algorithm efficiently solves the frequency response system projected on the eigenspace. However, the existing FS algorithm using AS is developed for low-FRA, say over the range 1Hz-2KHz. In this work, we extend the FS algorithm using AS for FRA over an arbitrary frequency range. Therefore, it can be efficiently applied to systems operated at a high frequency, say over the range 230MHz-250MHz. The success of the proposed method is demonstrated by Hi-FRA of a checkerboard resonator.

• School Mathematics
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• v.1 no.1
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• pp.19-37
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• 1999

In this study, we examined some matters related to the learning of variable concept in school mathematics on the basis of the theoretical foundation from the previous studies(e.g. Davis, 1975; Rosnick, 1981; IK chemann, 1981; Wagner, 1983.) and practices on variable concept teaching by evaluating the current state of that. Matters be discussed are as follows; the use of symbol for place holders in elementary mathematics, the dealing with sets those elements are literals and operations of such sets, the teaching of dummy variable, the construction of literal expressions that contains variables, the labeling indeterminates as a constant, the change in the exact meaning of variable according to the function concept, the teaching of a generalization by means of variables. After considering on these matters that are connected with the teaching-learning of variable concept, we suggested the alternative proposal to the current state of variable concept teaching.

• Journal of Fashion Business
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• v.9 no.1
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• pp.34-56
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• 2005

This study analyzed the formative relationship between clothes and hat, and to find out the development direction of next hat design. To do these purposes, Fashion photos were picked up from all kinds of fashion magazines containing in Paris from the 1990's to 2004 S/S and some designers' collections. Then 1,381 photos were selected through two screenings. At first time, 1,500 photos were selected to have the relationship between clothes and hats, and finally 1,381 photos were picked. The method to analyze was the formative analysis by Marian L. Davis and Marilyn R. Delong. The results suggest that clothes and hat have an organic relationship, and a hat style is changed with formative elements of clothes.

• Asian-Australasian Journal of Animal Sciences
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• v.7 no.4
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• pp.475-479
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• 1994

Postweaning performance data were obtained on 401 group fed purebred Angus calves from 24 selected sires (12 high and 12 low feed conversion sires) from 1983 through 1986 at the Northwestern Branch of the Ohio Agricultural Research and Development Center. A single generation divergent selection experiment was replicated four times (1983, 1984, 1985 and 1986) to obtain an realized heritability estimate for postweaning feed conversion. The 140-d postweaning period was divided into five 28-d periods. Realized heritability estimates for feed conversion by 28-d periods fluctuated greatly and demonstrated no particular pattern. Heritability was highest for the fourth period (between d 85 and 112 of postweaning period, 0.61). Thus, beef producers could successfully select for feed conversion.

• Proceedings of the KAIS Fall Conference
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• 2010.11b
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• pp.624-627
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• 2010

20세기 재즈의 흐름에서 특히 주목할 만한 인물은 마일즈 데이비스로 그의 독창적인 시도와 새로운 접근방식은 현대 음악에도 많은 영향력을 발휘하고 있다. 어느 분야에서건 그 흐름을 주도하는 인물들은 시대적 배경과 무관하지 않다. 흐름을 주도한다는 것은 현재 없던 것을 새로이 선보인다는 개념이 아니라 과거에 있었던 것을 다르게 접근, 발전시킨다는 것이 타당할 것이다. 이 연구에서는 마일즈 데이비스가 보여주었던 수많은 시도 중에서 Nefertiti 라는 특정 곡을 중심으로 20세기 초에 에즈라 파운드를 중심으로 영국과 미국에서 형성되었던 이미지즘과의 연관성을 논하고자 한다. 음악과 문학은 항상 그 시대의 흐름과 무관하지 않았고 독창적인 예술가와 작가의 세계를 연결시켜보는 것 또한 커다란 의미가 있으리라 본다.

• Journal of Distribution Science
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• v.9 no.2
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• pp.123-129
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• 2011

The restaurant franchise industry is one that could benefit significantly from the use of intranet technology, from its potential for improving communications between franchisors and franchisees, to providing easier inventory and ordering processes. However, there is a level of trepidation among potential users about whether the technology would improve their work performance. This study sought to examine the relationships between perceived uncertainty and perceived usefulness of intranet technology in the restaurant franchise industry. Through a review of available literature, 10 sub-dimensions of perceived uncertainty (Duncan, 1972) and six sub-dimensions of perceived usefulness (Davis, 1989) were derived. Canonical correlation analysis was used to examine the relationships between these concepts using data collected from 163 franchising restaurant managers in South Korea. Findings from the data analysis demonstrates two negative factors and one positive factor in perceived uncertainty that influence perceived usefulness, thus offering some implications of what to consider when implementing an intranet system in a restaurant franchise.

• Proceedings of the Korean Nutrition Society Conference
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• 1995.07a
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• pp.550-558
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• 1995

Nutrition surveillance can sometimes be a powerful tool for raising awareness of nutrition problems at national and community levels and for promoting improved policies and programs to improve nutrition. Whereas many countries have been collected nutrition surveillance data for several years, the experience is often discouraging in terms of converting this data into information deemed useful by decision-makers and in terms of demonstrating impacts on decision-making. This presentation will describe the results of multi-country review of this problem undertaken by UNICEF in 1992-1994, the revised concept of "Nutrition Informatin Strategies" that emerged from the review, and the efforts currently underway at communtiy level in upstate New York to implement this revised concept.d concept.