• 아동학회지
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• 제23권4호
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• pp.153-169
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• 2002

This study examined the effects of the Anti-Bias Curriculum(Literature Approach) on children's recognition and attitudes toward handicapped persons. The subjects were 54 non-handicapped 4-year-old kindergarten children. They were assigned to an experimental or a control group, with 27 children in each group. Instruments for the pre- and post-tests were the Survey of Child's Recognition of Handicapped Persons and the Child's Attitudes Toward Handicapped Persons Scale, respectively. The Anti-Bias program(Literature Approach) was developed and applied to the experimental group for 6 weeks. In the experimental group, differences were found between the pre- and post-test scores in recognition and attitudes toward handicapped persons.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2011년도 제40회 동계학술대회 초록집
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• pp.436-436
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• 2011

Recently, spintronic devices with submicron structures are widely investigated to take advantage of their unique micromagnetic properties. In this work, we study the temperature dependence of exchange bias in bilayer anti-dot arrays made by depositing Co (40 nm)/Ni (5 nm) ferromagnetic bilayer on Si substrate to form anti-dot arrays with a diameter $1{\mu}m$. The anti-dot patterning was done only for the upper Co layer, while the Ni underlayer was kept unperforated. The temperature dependences of magnetoresistance (MR) and exchange bias were studied along magnetic easy and hard axes. The in-plane MR measurements were performed using a physical-property measurement system (PPMS ; Quantum Design Inc.) at various temperatures. The standard in-line four-point probe configuration was used for the electrical contacts. As temperature was varied, the MR data were obtained in which in-plane field (H=3 kOe) was applied in the directions along the hard and the easy axes with respect to the lattice plane. The temperature dependences of magnetic anisotropy and exchange bias were also studied along the magnetic easy and hard axes. As temperature decreases, the single peak splits into two peaks. While no exchange bias was observed along the magnetic easy axis, the exchange bias field steadily increased with decreasing temperature along the magnetic hard axis. These results were interpreted in connection with the magnetic anisotropy and the effect of the anti-dots in pinning domain wall motion along the respective direction.

• 한국산학기술학회논문지
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• 제19권1호
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• pp.321-330
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• 2018

본 연구는 유아를 대상으로 한 반편견 교육활동 및 프로그램들과 관련된 국내의 실천연구 동향을 살펴보고자 하였다. 보다 구체적으로는 유아기 반편견 교육활동 및 프로그램들이 주요하게 다루고 있는 편견의 주제를 살펴보고, 해당 교육활동에서 적용하고 있는 교수-학습의 매체나 접근법을 분석함으로써 반편견 교육활동에 대한 이해를 돕고자 하였다. 이를 위해 유아기 반편견 교육 연구가 처음 시작된 1995년부터 2017년까지 수행된 반편견 교육활동이나 프로그램을 개발, 적용한 실천연구 125편을 분석하였다. 분석결과 시기적으로는 2000년-2004년 사이에 절반에 가까운 53편의 연구가 수행되었으며, 단일한 편견주제를 다룬 교육활동 연구들이 64.8%로 두 가지 이상의 편견주제를 다중으로 다룬 교육활동 연구보다 많았다. 한 가지의 편견에 초점을 둔 교육활동의 주제로는 장애관련 편견과 젠더관련 편견이 가장 많이 다루어진 것으로 나타났다. 여러 편견주제를 함께 다룬 다중편견주제의 경우 절반 이상이 세 가지에서 다섯 가지 사이의 편견주제들을 다루고 있었으며, 가장 빈번하게 다루어진 내용은 외모, 가족, 장애, 젠더, 인종, 계층, 문화와 관련한 편견의 순서로 나타났다. 반편견 교육에 사용된 교수-학습 매체 및 방법은 동화를 활용한 것이 압도적으로 많아 60.8%로 나타났고, 통합적 환경이 그 뒤를 이어 14.4%를 차지하였다. 이러한 분석 결과는 유아기 반편견 교육의 주제 범위 체계화, 접근 방법 다양화의 기초자료로 활용될 수 있을 것으로 생각된다.

• 한국군사과학기술학회지
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• 제12권3호
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• pp.368-377
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• 2009

In this paper we study the gyro bias calibration method of SDINS(Strap-Down Inertial Navigation System). Generally, SDINS's calibration is performed in 2-axis(or 3-axis) rate table with chamber for varying ambient temperature. We assumed that the majority of calibration-parameter except for gyro bias is knowned. During gyrobias calibration procedure, it can be induced some disturbances(accelerometer's short-term error induced rate table rotation and anti-vibration mount's rotation). In these cases, old gyro-bias calibration methods(using velocity error or attitude error) have an error, because these disturbances are not detectable at the same time. So that, we propose a new gyro-bias calibration method(heading error minimizing using equivalent linear transformation) that can detect anti-vibration mount's rotation. And we confirm efficiency of the new gyro-bias calibration method by simulation.

• Journal of Magnetics
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• 제14권4호
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• pp.168-171
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• 2009

We propose a new type of spin torque nano-oscillator structure with an exchange- biased free rotating layer. The proposed spin torque nano-oscillator consists of a fixed layer and a free rotating layer with an additional anti-ferromagnetic layer, which leads to an exchange bias in the free rotating layer. The spin dynamics of the exchange-biased free rotating layer can be described as an additional exchange field because the exchange bias manifests itself by the existance of a finite exchange bias field. The exchange bias field plays a similar role to that of a finite external field. Hence, microwave generation can be achieved without an external field in the proposed structure.

• 아동학회지
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• 제22권3호
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• pp.195-209
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• 2001

The purpose of this study was to identify differences by gender and experimental treatment in the effectiveness of an anti handicap-bias program using a persona doll. The subjects were 60 kindergarten children of middle socio-economic status in Kyunghi Province, S. Korea. Treatment effects showed that the handicap-acceptance attitude scores of the experimental group were higher than those in the control group, and there were no significant differences in handicap-acceptance attitudes between boys and girls. Young children perceived the persona doll as a soul and a playmate and showed close attachment to it. They recognized the story of the persona doll as fact rather than fiction.

• 지역사회간호학회지
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• 제32권2호
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• pp.140-149
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• 2021

Purpose: This study aimed to identify factors (biological, psychological, interpersonal, and contextual factors) associated with the weight bias internalization of the Korean girls in early adolescence. Methods: This study used a cross-sectional design. Data was collected from 233 girls aged 12~14 years with a self-reported questionnaire. With multiple regression analysis, the factors associated with the weight bias internalization of the girls in early adolescence were analyzed. Results: Of psychosocial factors, fear to fat (anti-fat attitude) (β=.43, p<.001) was associated with the weight bias internalization of the girls in early adolescence. In addition, attachment with teachers (β=-.11, p=.029) of an interpersonal factor and perceived socio-cultural pressure regarding weight control (β=.34, p<.001) of a contextual factor were associated with the weight bias internalization of the girls in early adolescence. Conclusion: For releasing the weight bias internalization of the girls in early adolescence, decreasing anti-fat attitude and socio-cultural pressure regarding weight control should be primarily required through social efforts including community and school based interventions.

• 문화기술의 융합
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• 제4권3호
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• pp.299-303
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• 2018

일반적으로 대공화기의 체계 명중률을 예측할 때 오차를 각각 고정편기, 가변편기 및 랜덤오차로 분류한 후 가변편기와 랜덤오차는 각 오차의 값의 제곱의 합의 제곱근으로 나타내고 고정편기의 경우는 오차의 합으로 나타낸다. 이때 각 오차의 단위 값의 변화에 관한 고각방향과 방위각 방향의 변위를 나타내는 변수가 가중치로 작용한다. 그리고 이 오차들을 이용하여 정규분포식의 적분을 통하여 체계 명중률을 예측한다. 본 논문에서는 오차의 상관관계를 고려하여 체계 명중률을 예측하는 방법을 제시한다. 본 접근법이 정밀한 체계 명중률을 예측하는데 도움이 된다는 것을 보인다.

• 척추신경추나의학회지
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• 제15권2호
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• pp.9-18
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• 2020

Objectives This study verified the clinical effectiveness of Qigong exercise therapy for individuals with hypertension. Methods Ten electronic databases were used for information retrieval. Only randomized controlled trials (RCTs) using Qigong exercise therapy as a treatment for hypertension were included in this study. Cochrane risk of bias tool was used to assess the methodological quality of each RCT. Results After a thorough review, six RCTs were deemed eligible. These studies were divided into two groups: Qigong vs. no intervention and Qigong plus anti-hypertensive drug vs. anti-hypertensive drug alone. Among the six RCTs, four studies were Qigong vs. no intervention, and two studies were Qigong plus anti-hypertensive drug vs. anti-hypertensive drug alone. The meta-analysis demonstrated that adding Qigong exercise to anti-hypertensive drug treatment lowers diastolic blood pressure more than the anti-hypertensive drug alone. Conclusions Although Qigong exercise is not widely used in the Korean medical field, the results of this study demonstrated the necessity of exercise while controlling hypertension. However, the number of included studies was small, with their high risk of bias. In conclusion, although it is difficult to determine whether Qigong exercise lowers blood pressure in hypertensive patients, exercise including Qigong must be parallel with the intake of anti-hypertensive drugs.

• 한국자동차공학회논문집
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• 제10권6호
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• pp.234-240
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• 2002

This paper treats the problem of estimating the longitudinal velocity of a braking vehicle using measurements from an accelerometer and wheel speed data from standard anti-lock braking wheel speed sensors. We develop and experimentally test three velocity estimation algorithms of increasing complexity. The algorithm that works the best gives peak errors of less than 3 percent even when the accelerometer signal is significantly biased.