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양재원,임민경,양은주 한국인지행동치료학회 2016 인지행동치료 Vol.16 No.2
본 연구에서는 동성애자들의 사회불안의 정도를 확인하고, 사회불안과 얼굴표정 정서인식의 정확성, 민감성 간의 관계를 확인하고자 하였다. 얼굴표정 정서인식의 정확성과 민감성은 양재원과 오경자(2009)의 실험패러다임을 활용하여 측정하였다. 이 실험에서는 몰핑 기법을 이용하여 기쁨, 슬픔, 화남, 두려움의 네 가지 정서의 다양한 정서 강도를 가진 얼굴표정 자극을 제작하였다. 그리고 이를 중립적 얼굴표정에서 더 강한 정서를 가진 얼굴표정의 순서대로 제시하거나(상향과제), 강한 정서에서 중립적인 얼굴표정으로 변화하는 방식으로 제시하였다(하향과제). 이 과제를 통해 피험자들이 정서가 나타나는 것 혹은 사라지는 것을 인식하는 정서 강도를 측정하여 정서인식의 민감성을 확인하였다. 동시에 그 정서를 얼마나 정확하게 인식하는지를 측정하여 정서인식의 정확성을 확인하였다. 그 결과, 동성애자들은 이성애자들에 비해 더 높은 사회불안을 보였으며, 남성 동성애자들의 경우 이성애자들에 비해 슬픔, 분노, 기쁨 정서인식의 민감성이 떨어지는 것으로 나타났다. 동성애자들의 사회불안과 얼굴표정 정서인식 간의 관련성을 살펴본 결과, 남성 동성애자의 경우에는 사회불안과 분노 정서의 정확성 간의 정적 상관이 유의하였으며, 여성 동성애자의 경우에는 사회불안과 기쁨 정서 민감성의 부적 상관이 유의하였다. 이런 경향은 우울을 통제하고도 유의하였다. 동성애자들이 높은 사회불안을 보이는 것, 그리고 그것이 얼굴표정 정서인식의 민감성, 정확성과 어떤 관련성이 있는지 그 함의에 대해 논의하였다. This study was designed to investigate the levels of social anxiety in lesbians and gay men and their relationship with facial emotion recognition compared to heterosexuals. To measure their facial emotion recognition, we used Yang and Oh(2009)’s experiment paradigm. In their experiment, happy, sad, angry, and fearful emotional faces with diverse emotional intensities were created by using morphing technique. In ascending trials, facial emotion stimuli were presented from neutral to more intensive ones. The reverse sequence was used in descending trials. The participants were asked to respond when they noticed a presence of a certain emotion in ascending trials and a disappearance of an emotion in descending trials. Additionally, they judged which emotion they recognized. Results indicated that the level of social anxiety was higher in lesbians and gay men than in heterosexuals. In particular, gay men recognized sadness, anger, and happiness with lower sensitivity compared to heterosexual men. Moreover, the levels of social anxiety of gay men were positively correlated with the accuracy of recognition of angry facial emotion. On the contrary, social anxiety symptoms were negatively correlated with the sensitivity to happy facial emotion in lesbians. The implications of this study were discussed.
원격지에서 모노펄스 레이더의 주파수 위상 교정을 위한 독립된 펄스반복주파수 생성 및 제어
양재원,유승오,윤재혁,이동주,Yang, Jaewon,Yoo, Seungoh,Yoon, Jaehyuk,Lee, Dongju 한국군사과학기술학회 2021 한국군사과학기술학회지 Vol.24 No.4
This paper presents a method of independent pulse repetition frequency(PRF) generation and control for frequency phase calibration on mono-pulse radar at a remote location. In order to generate an independent PRF signal of 320[Hz], pulse width modulation(PWM) of 16-bit timer/counter was applied. For a precision control of PRF signal, 16-bit timer/counter interrupt was changed for each period. Therefore, average frequency of PRF could be controlled by 0.0001[Hz]. To calibrate a frequency phase of mono-pulse radar at a remote location, the proposed PRF generator with a precision control of frequency was used regardless of receiving PRF signal from a radar. For the verification of the proposed PRF generator, theoretical analysis and experimental results are included.
양재원,홍남기,심재선,심지선,이유미,김현창 대한골대사학회 2018 대한골대사학회지 Vol.25 No.2
Background: Type 2 diabetes mellitus is associated with an increased risk of osteoporotic fracture despite relatively preserved bone mineral density (BMD). Although this paradox might be attributed to the influence of insulin resistance (IR) on bone structure and material properties, the association of IR with femur bone geometry and strength indices remains unclear. Methods: Using data from the Cardiovascular and Metabolic Disease Etiology Research Center cohort study, we conducted a cross-sectional analysis among nondiabetic postmenopausal women. IR was estimated using the homeostasis model assessment of IR (HOMA-IR). Compartment-specific volumetric BMD (vBMD) and bone volume of proximal femur were measured using quantitative computed tomography. The compressive strength index (CSI), section modulus (Z), and buckling ratio of the femoral neck were calculated as bone strength indices. Results: Among 1,008 subjects (mean age, 57.3 years; body mass index [BMI], 23.6 kg/m2), BMI, waist circumference, and vBMD of the femoral neck and total hip increased in a linear trend from the lowest (<1.37) to highest (≥2.27) HOMA-IR quartile (P<0.05 for all). The HOMA-IR showed an independent negative association with total bone volume (standardized β=-0.12), cortical volume (β=-0.05), CSI (β=-0.013), and Z (β=-0.017; P<0.05 for all) of the femoral neck after adjustment for age, weight, height, physical activity, and vitamin D and high-sensitivity C-reactive protein levels. However, the association between HOMA-IR and vBMD was attenuated in the adjusted model (femoral neck, β=0.94; P=0.548). Conclusions: Elevated HOMA-IR was associated with lower cortical bone volume and bone strength indices in nondiabetic postmenopausal women, independent of age and body size.
양재원,윤한수,박훈 한국항공우주학회 2011 한국항공우주학회 학술발표회 논문집 Vol.2011 No.4
최근 들어 항공/우주/방위 산업 등에 다양한 비행체의 개발이 이뤄지고 있다. 여러 사업에서는 Telemetry를 이용한 시험 평가를 실시 하지만, 수신 장비 및 Telemetry에 소요되는 비용이 많이 들어간다는 단점 때문에 적용을 기피하고 있다. 여기서 개발된 초소형 Telemetry를 적용하여 저비용의 Telemetry 시스템을 구현을 제안하고자 한다. In recent years, aviation / aerospace / defense industry are developed various vehicles. Testing and evaluation in several projects are utilized Telemetry, but the cost of receive equipment system and Telemetry are too expensive, so did not apply. So, We are proposal low cost telemetry system with tiny-telemetry.
아동, 청소년기 사회불안의 측정: 한국판 청소년 사회불안척도(K-SAS-A)의 타당화
양재원,양윤란,오경자 한국임상심리학회 2008 Korean Journal of Clinical Psychology Vol.27 No.4
The aim of this study was to investigate the psychometric properties of the Korean version of the Social Anxiety Scale for Adolescents (K-SAS-A). A total of 1,364 students (758 boys and 606 girls) in grades 4-5, 7-8, and 10-11 completed the K-SAS-A, performance anxiety scale, K-CATS, depression scale (CES- DC), and sociometric nomination of social and performance anxiety. The parents of students in grades 4-5 and 7-8 also completed the K-SAS-A, adapted for use with parents, and the K-CBCL. The internal consistency of the K-SAS-A was high and the test-retest reliability over six months was acceptable. Factor analysis of the K-SAS-A revealed a three-factor structure (Fear of Negative Evaluation, Social Avoidance and Distress-New, and Social Avoidance and Distress-General), which was similar to that reported in previous studies preformed with the original scale. With regard to gender and age differences in social anxiety level, girls showed more social anxiety than boys, and students in grades 4-5 experienced less social anxiety than older adolescents. Correlation analyses revealed a positive correlation between the K- SAS-A and performance anxiety scales, including the K-CATS, and CES-DC. Parent- and peer-rated social anxiety were positively correlated with K-SAS-A scores. The overall results suggested that the K-SAS-A is reliable and valid for the assessment of social anxiety in children and adolescents. Finally, the implications and limitations of this study were discussed along with future research directions.