Design of Digitalized SECAM Video Encoder with Modified Anti-cloche filter and SECAM Video Decoder with BPF and Error-free Square Root

하주영,김주현,강봉순,Ha, Joo-Young,Kim, Joo-Hyun,Kang, Bong-Soon The Korea Institute of Information and Commucation 2006 한국정보통신학회논문지 Vol.10 No.3

본 논문은 개선된 Anti-cloche filter를 사용하는 SECAM video encoder와 오차가 없는 제곱근기와 BPF를 사용하는 SECAM video decoder를 제안하고자 한다. SECAM video encoder는 ITU-R BT.470에 의해 지정된 Anti-cloche filter를 사용하지만, Anti-cloche filter가 가지는 특성이 주파수에 따라 매우 급격히 변하기 때문에 디지털회로의 설계에 적용하기가 어렵다. 이러한 문제를 해결하기 위해서 본 논문에서는 Anti-cloche filter의 주파수 특성이 좌우대칭이라는 점을 이용하여서 좌우대칭의 중심이 되는 주파수인 4.286MHz를 0MHz로 이동하여 Anti-cloche filter를 High Pass Filter(HPF)로 변환한다. 변환된 HPF는 Anti-cloche filter에 비해 구조가 간단하기 때문에 설계가 비교적 용이하다. 또한 본 논문에서 제시한 SECAM video decoder는 주파수 변조된 신호로부터 색차신호(Db, Dr)를 복원하기 위해서 오차가 없는 제곱근기와 두 개의 미분기 그리고 삼각함수를 이용하여 색상신호의 잡음을 제거하고 CVBS(Composite Video Baseband Signal)로부터 색상신호와 밝기신호를 분리하기 위해서 BPF를 사용한다. 제안된 시스템은 Altera FPGA인 APEX20KE EP20K1000EBC652-3와 TV를 이용하여 실시간 검증을 수행하였다. In this raper, we propose the Sequentiel Couleur Avec Memoire or Sequential Color with Memory (SECAM) video encoder system using modified anti-cloche filters and the SECAM video decoder system using a band pass filter (BPF) and an error-free square root. The SECAM encoder requires an anti-cloche filter recommended by International Telecommunication Union-Recommendation (ITU-R) Broadcasting service Television (BT) 470. However, the design of the anti-cloche filter is difficult because the frequency response of the anti-cloche filter is very sharp around rejection-frequency area. So, we convert the filter into a hish pass filter (HPF) by shifting the rejection frequency of 4.286MHz to 0Hz frequency. The design of HPF becomes very easy, compared to that of the anti-cloche filter. The proposed decoder also uses an error-free square root, two differentiators and trigonometric functions to extract color-component information of Db and Dr accurately from frequency modulation (FM) signals in SECAM systems. Also, the BPF in decoder it used for removing color noise in chrominance and dividing CVBS into chrominance and luminance. The proposed systems are experimentally demonstrated with Altera FPGA APEX20KE EP20K1000EBC652-3 device and TV sets.

성매매는 범죄인가?

하주영 ( Joo Young Ha ) 한국철학사상연구회 2002 시대와 철학 Vol.13 No.2

A meaningful debate about the legalization of prostitution presupposes the philosophical reflection of the morality of taking money for bodily services. In this essay I take this task with two starting points. First of all, we should begin from taking off the stigama attached to prostitutes to solve the problem of prostitution. Secondly, the ethical grounds and beliefs supporting the criminaization of prostitution are mostly not rationally defensible. Most arguments for its criminalization are based on misogyny, which justifies exclusion of many prostitutes from enjoying fundamental and basic human rights. Some of arguments for its criminalization such as romantic love, sex as commodity, human rights, alienation don`t succeed in justifying its criminalization, though they are worthy of being respected as a personal conception of good or logic of prostitution being practiced actually. The feminist argument that prostitution perpetuates male dominance of women by selling the image and identity of subordinated women is itself very serious and cogent, but it doesn`t explain why only prostitution must be criminalized of other jobs and practices that are oppressive to women. Finally I examine the need and the meaning of the legalization of prostitution and consider if it can contribute to help rectifying the oppression of women and improning the situation of poor women being excluded from enjoying human rights.

치매 환자를 돌보는 간호사의 역할과 업무

하주영(Ha Ju Young) 한국성인간호학회 2007 성인간호학회지 Vol.19 No.2

자아존중감, 가족기능 및 사회적 지지가 대학생의 스트레스에 미치는 영향

하주영(Ha Ju-Young) 기본간호학회 2010 기본간호학회지 Vol.17 No.2

Purpose: The purpose of this study was to investigate self-esteem, family function, and social support which might influence stress in college students. Method: Data were collected from October 15 to December 20, 2007 when 411 students completed a questionnaire which included Self-esteem scale, Family APGAR questionnaire, Multidimensional Scale of Perceived Social Support and Global Assessment of Recent Stress scale. The collected data was analyzed with the SPSS Win 14.0 statistics program. Results: The scores for stress showed significantly negative correlations with the scores for self-esteem (r=-.394, p<.001), family function (r=-.215, p<.001), and social support (r=-.249, p<.001). Self-esteem, family function and social support by friends were significant predictors and accounted for 18.5% of the variance in stress in undergraduate students. Conclusion: Future stress management programs for undergraduate students should be developed to reinforce self-esteem, family function and social support by friends.

청소년 비행과 사이버 비행 및 정신건강

하주영 ( Ju-young Ha ),심보윤 ( Bo-yun Sim ) 부산대학교 간호과학연구소 2016 글로벌 건강과 간호 Vol.6 No.2

Purpose: The purpose of this study was to investigate the relationship between juvenile delinquency, cyber delinquency, and mental health among adolescents. Methods: Data were obtained from the 5th wave of the Korea Adolescence Welfare Panel Survey 2014. The subjects were 2,051 high school students. Results: Significant differences in gender and school type were found for offenders of both juvenile and cyber delinquency, while juvenile offenders also showed a significant difference in school characteristics. Significant correlations were also found between offenders of juvenile delinquency and victims of juvenile and cyber delinquency. Conclusion: Based on the study findings, self-esteem, life satisfaction, and peer attachment should be taken into consideration in prevention and management programs for juvenile delinquency and cyber delinquency in schools.

간호사의 생명의료윤리에 대한 의식

하주영(Ha, Ju-Young),김동희(Kim, Dong-Hee),황선경(Hwang, Sun-Kyung) 한국간호교육학회 2009 한국간호교육학회지 Vol.15 No.2

요양병원 간호사의 신체 억제대 적용 간호의 영향요인

하주영 ( Ha Ju-young ),박수빈 ( Park Su-bin ) 부산대학교 간호과학연구소 2021 글로벌 건강과 간호 Vol.11 No.1

Purpose: This study aimed to identify the factors influencing nursing practice for physical restraints among nurses in long-term care hospitals. Methods: This cross-sectional correlational study included 151 nurses working at 14 long-term care hospitals. Data were collected using self-administered questionnaires and analyzed using descriptive statistics, t-test, ANOVA, Scheffé’s test, Pearson correlation coefficients, and multiple regression with the SPSS 25.0 program. Results: The mean score of nursing practice for physical restraints, perception of physical restraints, moral sensitivity, and organizational culture score of the participants were 38.39±3.12 (possible scores=14~42 points), 55.66±10.29 (17~85 points), 132.00±13.28 (34~170 points), and 66.53±8.85 (20~100 points), respectively. Relationship-oriented organizational culture, age, moral sensitivity, and number of patients per registered nurse and nurse aide were significant predictors of nursing practice for physical restraints in nurses accounting for 27% of the variance. Conclusion: This study suggested that relationship-oriented organizational culture, high moral sensitivity of nurses, and optimal nursing staffing may be enhance nursing practice for physical restraints in long-term care hospitals.

고연령 미혼여성의 건강검진에 영향을 미치는 요인

하주영 ( Ha Ju Young ),윤지향 ( Youn Ji Hyang ),이영숙 ( Lee Yeong Suk ),이현정 ( Lee Hyun Jung ) 여성건강간호학회 2014 여성건강간호학회지 Vol.20 No.1

Purpose: This study was to investigate factors that influence health examination for unmarried women. Methods: A correlation study was carried out with 144 unmarried women with an age range of 35~49 years through self-administered questionnaires. This questionnaire included Health Belief Model modifying factors (demographic ·sociological, structural, and cues to action variables). Data were analyzed using descriptive statistics, x2-test, multi-ple logistic regression. Results: The mean age of participants was 37.2± 2.67 years. Rates for breast cancer, cervical cancer and comprehensive health examination were each 34.7%, 38.2% and 94%. In multiple logistic regression analysis, influencing factors on physical examination were age(OR=0.06, 95% CI: 0.02~0.26), personal medical insurance (OR=6.30, 95% CI: 1.60~24.82), housemate (OR=7.63, 95% CI: 2.58~22.52), exercise (OR=3.72, 95%CI: 1.37~10.12) in breast cancer examination, and age (OR=0.08, 95% CI: 0.02~0.34; OR=0.07, 95% CI:0.01~0.85), personal medical insurance (OR=14.17, 95% CI: 2.94~68.23), sexual experiences (OR=3.38, 95% CI:1.28~8.91), drinking (OR=2.92, 95% CI: 1.14~7.49) in cervical cancer examination. Conclusion: The results em-phasize the necessity of preparing nursing education and intervention in consideration of associated factors which influence on the health examination in unmarried women. Key Words: Early detection of cancer, Single person, Women

노인의 만성질환 경험

하주영(Ha Ju-Young),이은희(Yee Oon-Hee),손현미(Son Hyun-Mi) 질적연구학회 2011 질적연구 Vol.12 No.1

Purpose: The purpose of this study was to understand the lived experience of chronic disease in later life as defined by the aged. Methods: Four patients aged over 65 who were suffering from chronic disease(s) were participated in this study. Data were collected through unstructured in depth interviews between October and December, 2008. Data were analyzed using Giorgi’s phenomenological analysis. Results: The study was able to deduce a total of 6 components forming a general structure of coping with chronic disease in later life experienced by the aged including: “recognizing unexpected disease,” “realizing discomfort in life,” “progressive recognition of the reality in relation to one’s chronic disease,” “sadness about changes in later life,” “making a defensive effort,” “expectations and hope for comfort during the rest of life.” Conclusion: Chronic disease in later life for the aged was perceived as living with discomforts and reluctant ways of life in order to maintain and/or improve their health status. Regardless of their health status it was still valuable to keep their life as worthy. Therefore, it is suggested that health management interventions for elderly need to concern the characteristics of them as they are concerning both their sick body and their worthy later life together.

청장년층 뇌졸중환자의 회복 경험

하주영(Ha Ju-Young),박형숙(Park Hyung-Suk),이상주(Lee Sang-Ju),전정해(Jeon Jeong-Hae),조호윤(Jo Ho-Yoon),지영주(Jee Young-Ju) 한국성인간호학회 2010 성인간호학회지 Vol.22 No.3