• 디지털융복합연구
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• 제11권6호
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• pp.221-233
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• 2013

본 연구는 뇌졸중 환자의 효율적인 재원일수 관리를 위해 행정자료를 이용하여 우리나라 의료기관을 이용한 뇌졸중 입원환자의 중증도 보정 적정 재원일수 예측 모형을 개발하고 이를 의료기관에서 활용할 수 있는 방안을 제시하고자 하였다. 이를 위해 2004-2009년 퇴원손상심층조사 자료 중 뇌졸중 입원환자 23,134명을 대상으로 데이터마이닝 기법을 이용하여 뇌졸중 입원환자의 적정 재원일수 예측모형을 개발하였다. 의사결정나무 모형에 따라 뇌졸중 입원환자의 평균재원일수에 가장 큰 영향을 미치는 변수는 뇌졸중 발생유형이었으며, 의사결정나무를 이용하여 개발된 뇌졸중 입원환자의 중증도 보정 재원일수 모형 결과, 적정 재원일수와 실제 재원일수의 차이는 진료비지불방법, 의료기관 소재지, 병상규모가 모두 통계적으로 유의하게 나타났다. 따라서 뇌졸중 입원환자의 재원일수 변이를 줄이고 효율적으로 관리하기 위해서는 개발된 모형을 의료기관의 의료정보시스템에 적용하고 관리하는 활동을 전개해야 할 것이다.

• 한국통신학회논문지
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• 제40권8호
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• pp.1643-1654
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• 2015

IEEE 802.11n의 표준화와 더불어 2.4GHz와 5GHz대역을 모두 사용하는 AP가 개인과 통신 사업자에 의하여 널리 보급되고 있다. 더불어 실내 위치 측위 등의 분야에서 위치 측정의 정확도 향상을 이유로 line-of-sight (LOS)와 non-line-of-sight (NLOS)를 분간하는 기술에 대한 요구가 증가하고 있다. 본 논문은 주파수 대역에 따른 전파 감쇠 특성의 차이를 이용하여 AP와 사용자 사이의 LOS와 NLOS여부를 식별 하고자 하였으며, 해당 기술에 기반 하여 실내 위치를 측정하는 시스템을 설계 하고자 하였다. 본 논문에서 제안하는 LOS/NLOS 판별 알고리즘은 AP로부터의 거리가 알려지지 않은 상황에서도 LOS/NLOS를 판별 할 수 있다는 강점을 갖으며, 실내 위치 측위 알고리즘은 방 단위에서의 정확한 위치 측위를 가능하게 한다는 강점을 갖는다. 제안 기술을 Android 어플리케이션으로 구현하였으며, 스마트폰을 이용한 실험 결과를 제시함으로써 타당성을 입증하였다.

• 비교문화연구
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• 제34권
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• pp.285-306
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• 2014

La historia sobre la ${\acute{e}}poca$ de la independencia y la $formac{\acute{o}}n$ de las naciones latinoamericanas enfatiza sobre todo los roles de los hombres y $espor\acute{a}dicamente$ de las mujeres. Se han considerado directrices las acciones de algunos criollos de esa epoca como $Sim{\acute{o}}n$ Bolivar y San Martín. La historiografía masculina-$c{\acute{e}}ntrica$ $est{\acute{a}}$ ignorando y marginando las luchas y los sacrificios de las mujeres que participaron en la independencia y la $formac{\acute{o}}n$ de las naciones. Por tanto, es preciso realizar una crítica a los procesos que han mantenido la tendencia machista, uno de ellos es porque no se han desatendido concepciones y cosmovisiones sobre el $g{\acute{e}}nero$. En fin, esta tendencia es porque no se ha superado la herencia colonial de manera crítica. En este contexto, este artículo intenta investigar los cambios sobre los puntos de vista y la manera de ver a las mujeres y sus actividades durante la ${\acute{e}}poca$ de la independencia. Puesto que las mujeres han sido consideradas como objetos que ocupan un espacio secundario en $comparaci{\acute{o}}n$ a los roles de los criollos. Este estudio pretende configurar nuevos puntos de vista para reestructurar nuestro enfoque tradicional sobre la independencia y las formaciones de las naciones latinoamericanas para poner en evidencia los roles de las mujeres en la historia.

• The Korean Journal of Ceramics
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• 제1권3호
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• pp.152-154
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• 1995

A non-hydrolytic sol-gel process was developed to fabricate low-hydroxyl hard gels. The reaction of tert-butyl alcohol with silicon halides provided transparent low-hydroxyl hard gels. Some properties such as transparency, density, and refractive index was successfully doped into the hard gel matrices. The absorption spectrum of an erbium-doped methylsilsesquioxane was investigated to decide the pumping wavelength of an argon laser. The luminescence of the erbium-doped gel at 664 nm seems to be due to $4^F{9/2}\to 4^I_{15/2}$ transition.

• 한국전자파학회:학술대회논문집
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• 한국전자파학회 2002년도 종합학술발표회 논문집 Vol.12 No.1
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• pp.127-131
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• 2002

This paper presents the a measured path-loss characteristics in urban line-of-sight(LOS) and non line-of-sight(NLOS) environments for 3.4, 5.3, and 6.4 ㎓ band signals. A two-ray model is applied to analyse the path-loss characteristics in LOS areas. In LOS areas, an empirical break point, whose distance is shorter than a theorical break point, is founded. Further, a sudden power level drop occurs at a transition point from LOS region to NLOS area and different path-loss exponents are occured various cases. The power level drop due to comer loss and path-loss exponents both increase as the distance between the transmitter and the corner increases.

• The Journal of Korean Physical Therapy
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• 제11권2호
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• pp.139-147
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• 1999

The purpose of this study was to evaluate and compare the limits of stability(LOS) data obtained from aged 20 to 69 years. In addition, this study was carried out to know correlation between age and LOS. 150 adults without neurosurgical and orthopedic disability from 20 to 69 years of age participared in this study. The LOS was measured at Two Feet Forceplate with BPM(Balance Performance Monitor) Dataprint Software Version 5.3. In this study applied the independent t-test, one-way ANOVA, and correlation analysis to determine the statistical significance of results at 0.05 level of significance. The results of this study were as follows: 1. The anteroposterior LOS significantly differented from 40 age group to 60 age group. 2. The mediolateral LOS significantly differencted from 50 age group to 60 age group. 3. There were statistically significant differences in anteroposterior LOS according to age increasing.

• 한국초전도ㆍ저온공학회논문지
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• 제9권4호
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• pp.1-6
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• 2007

We describe methods for depositing high temperature superconducting films on textured metal tapes by reactive co-evaporation (RCE). We discuss how RCE can be used to deposit on moving tape in a continuous fashion in a Garching-style process. Results are presented on films deposited by RCE at Los Alamos on IBAD-MgO textured tapes. The performance achieved, attaining over 500A/cm-width in self-field at 75.5 K, is competitive with the best results obtained by other processes for coated conductors. Tape production throughput is critical for the economics of the process and high deposition rates achieved in RCE are attractive for this. We present a detailed cost analysis model for HTS deposition using an RCE Garching process. The results indicate that HTS deposition can cost $<$5/kA{\cdot}m$ in a scaled up manufacturing environment.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2014년도 춘계 종합학술대회 논문집
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• pp.25-26
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• 2014

• Clinical and Experimental Pediatrics
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• 제64권6호
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• pp.310-312
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• 2021

• 한국전문물리치료학회지
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• 제7권2호
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• pp.1-19
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• 2000

Decreased equilibrium in standing and walking is a common problem associated with hemiparesis secondary to cerebral vascular accident. In patients with hemiplegia, postural sway is increased and often displaced laterally over the non-affected leg, reflecting asymmetry in lower extremity weight bearing during standing balance. Human balance is a complex motor control task, requiring integration of sensory information, neural processing, and biomechanical factors. Limits of stability (LOS) is a one of the biomechanical factors. The purposes of this study were to establish the influence of asymmetrical weight-bearing on the LOS of independent ambulatory hemiparetic patients. The subjects of this study were 29 hemiparetic patients (18 males, 11 females) being treated as admitted or out patients at Young-Nam University Hospital and Taegu Catholic University Hospital, all of whom agreed to participate in the study. Participants were asked to lean and displace their center of gravity (COG) as far as possible in directions to the sides and front of the body. The LOS and weight-bearing ratio were measured with a Balance Performance Monitor (BPM) Dataprint Software Version 5.3. In order to assure the statistical significance of the results, the independent t-test and a Pearson's correlation were applied at the .05 and .01 level of significance. The results of this study were as follows: 1) There were statistically significant differences in anteroposterior LOS according to the cause of brain demage (p<.01). 2) There were statistically significant differences in mediolateral LOS according to the hemiparetic side (p<.05). 3) There were statistically significant differences in anteroposterior and mediolateral LOS according to the brain operation (p<.01). 4) The mediolateral LOS significantly correlated with weight-bearing ratio (p<.01).