• Title/Summary/Keyword: self focusing

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Simulation of Ultrasonic Beam Focusing on a Defect in Anisotropic, Inhomogeneous Media

  • Jeong, Hyun-Jo;Cho, Sung-Jong;Erdenetuya, Sharaa;Jung, Duck-Yong
    • Journal of the Korean Society for Nondestructive Testing
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    • v.31 no.6
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    • pp.635-641
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    • 2011
  • In ultrasonic testing of dissimilar metal welds, application of phased array technique in terms of incident beam focusing is not easy because of complicated material structures formed during the multi-pass welding process. Time reversal(TR) techniques can overcome some limitations of phased array since they are self-focusing that does not depend on the geometrical and physical properties of testing components. In this paper, we test the possibility of TR focusing on a defect within anisotropic, heterogeneous austenitic welds. A commercial simulation software is employed for TR focusing and imaging of a side-drilled hole. The performance of time reversed adaptive focal law is compared with those of calculated focal laws for both anisotropic and isotropic welds.

Influence of Self-construal and Self-monitoring on Brand Product Preference -Focusing on the Moderating Effect of Brand Visibility- (자기해석과 자기감시가 브랜드 가시성에 따라 제품 선호에 미치는 영향)

  • Kim, Hayea;Kim, Jonghum
    • Journal of the Korean Society of Clothing and Textiles
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    • v.40 no.3
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    • pp.539-553
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    • 2016
  • This study investigated the influence of consumers' self-construal and self-monitoring on brand product preference by moderating brand visibility. Brand visibility consisted of product typicality and brand salience. The study results showed that respondents preferred products with high product typicality and low brand salience. Respondents with interdependent self-construal and high self-monitoring also showed a higher preference for high product typicality and low brand salience versus respondents with independent self-construal and low self-monitoring. Respondents preferred a product when they recognized a brand name, but brand visibility should be exposed naturally. Based on these results, this study has practical implications for the importance of maintaining brand identity and the appropriacy of brand logo size.

The Mediational Role of Parenting Self-Efficacy and Behavior on Child Self-Esteem : Female International Marriage Immigrant and Korean Mothers (여성결혼이민자와 한국어머니의 양육효능감과 양육행동의 매개적 역할 : 아동의 자존감 모형 탐색)

  • Choe, Hyung-Sung
    • Korean Journal of Child Studies
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    • v.30 no.5
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    • pp.245-262
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    • 2009
  • This study investigated the relations between young children's self-esteem and mother's parenting self-efficacy, husband support, parenting behavior, and mothers' depression, focusing on the mediational role of mother's parenting self-efficacy and behavior. Participants were 762 young child-mother dyads in Busan and Gyungnam, Korea. Mothers were Korean and female international marriage immigrants from China, Philippines, and Vietnam. Questionnaires were based on Choe and Chung (2001), Hong (1995), Shin (1996), Lee and Song (1991), and Lee (1994). Structural equation modeling indicated that parenting self-efficacy and parenting behavior were significant mediators of the relation between husband support and depression and child's self-esteem in Korea mothers, but in female international marriage immigrants. The results will be helpful for understanding parenting for child self-esteem in both groups.

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Concept Development of Resilience - Focusing on Cancer Patients - (극복력(resilience) 개념 개발 - 암 환자를 중심으로 -)

  • Hong, Sung-Kyung
    • The Journal of Korean Academic Society of Nursing Education
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    • v.15 no.1
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    • pp.109-119
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    • 2009
  • Purpose: This study was done to develop the concept of resilience focusing on cancer patients in Korea. Methods: This study was done in three phases sugggested in the Hybrid Model; theoretical phase, fieldwork phase, and analytical phase. Eight cancer patients participated in the fieldwork phase. Results: The antecedent of the concept of resilience was the crisis or adversity that threatens life or changes the quality of life. The attributes of resilience were psychosocial, relational, situational confrontation and faith (philosophical) characteristics. 1) Psychosocial : self worth, self efficacy, self-confidence, independence, optimistic & positive mind, strong will, and responsibility, 2) Relational : relation-oriented, intimacy, and social interests, 3) Situational confrontation : appraisal of stress situation, problem-oriented coping, and ability to applicate a new situation, 4) Faith (philosophical) : the belief that self-knowledge is valuable, finding positive meanings, religious belief, a belief that lives are worthwhile and meaningful, and a balanced perspective of one's life. The consequences of resilience were acceptance of adversity, getting through one's dread and apprehensions, and gratitude & sharing life. The contributing factor of resilience is positive family support. Conclusion: The concept of resilience is necessary in order to manage cancer patients for promoting quality of life so that its application may have a positive impact on the patients care.

The Effect of Authentic Leadership and Servant Leadership on Job Engagement among Hospital Employees : Focusing on Mediating Effect of Job Crafting and Moderated Mediating Effect of Positive Psychological Capital (중소병원 종업원의 리더십 인식이 직무열의에 미치는 영향과 잡 크래프팅의 매개효과 및 긍정심리자본의 조절된 매개효과)

  • Lee, Jung Jin;Shin, Esther
    • The Korean Journal of Health Service Management
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    • v.14 no.2
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    • pp.29-40
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    • 2020
  • Objectives: To investigate the effect of authentic leadership and servant leadership on job engagement among hospital employees, focusing on the mediating effect of job crafting and moderated mediating effect of positive psychological capital. Methods : Data were collected from 329 employees working at hospitals through a self-administered questionnaire-based survey. Results : Job crafting had a direct positive effect on job engagement and a mediating effect between the servant leadership and job engagement. Self-efficacy among positive psychological capital had a moderating effect on the relationship between job crafting and job engagement and a moderated mediating effect on the relationship among servant leadership, job crafting, and job engagement. Conclusions : Results imply that manager's authentic leadership and servant leadership is required to instill enthusiasm among hospital employees regarding their job crafting and job engagement. Additionally, development of self-efficacy among employees would lead to the improvement of job engagement.

Development of Adaptive Eye Tracking System Using Auto-Focusing Technology of Camera (눈동자 자동 추적 카메라 시스템 설계와 구현)

  • Wei, Zukuan;Liu, Xiaolong;Oh, Young-Hwan;Yook, Ju-Hye
    • Journal of Digital Contents Society
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    • v.13 no.2
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    • pp.159-167
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    • 2012
  • Eye tracking technology tracks human eyes movements to understand user's intention. This technology has been improving slowly and should be used for a variety of occasions now. For example, it enables persons with disabilities to operate a computer with their eyes. This article will show a typical implementation of an eye tracking system for persons with disabilities, after introducing the design principles and specific implementation details of an eye tracking system. The article discussed the realization of self-adapting regulation algorithm in detail. The self-adapting algorithm is based on feedback signal controlling the lens movements to realize automatic focus, and to get a clear eyes image. This CCD camera automatic focusing method has self-adapting capacity for changes of light intensity on the external environment. It also avoids the trouble of manual adjustment and improves the accuracy of the adjustment.

A Quality Strategy and Self-Assessment Method for Organizational Excellence

  • Dahlgaard, Jens-J.;Park, Mi-Su
    • International Journal of Quality Innovation
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    • v.4 no.1
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    • pp.20-39
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    • 2003
  • Based on a combination of theories, experiences and cases a sustainable change strategy and self-assessment method with a focus on the human dimension in TQM are suggested and discussed. The Post Denmark TIQ (Total Involvement in Quality) case will be used to illustrate how breakthrough in people attitudes and organisational culture happened and became the foundation for a new culture focusing on change, continuous improvements and everybody's participation.

The Effects of Empowering Leadership on Organizational Citizenship Behavior: Focusing on Mediation Effects of Self-efficacy

  • Park, Yeun-hee
    • Journal of the Korea Society of Computer and Information
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    • v.21 no.5
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    • pp.185-191
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    • 2016
  • This study verified the structural relations among empowering leadership, self-efficacy and organizational citizenship behavior (OCB) in social welfare organizations. To this end, the study chose self-efficacy as an intervening variable and OCB as a dependent variable by considering the characteristics of social welfare organizations and their works. The study found that empowering leadership has a significantly positive impact on self-efficacy while both self-efficacy and empowering leadership have a significantly positive impact on OCB. Self-efficacy has meditating effects on the relationship between empowering leadership and OCB. Based on these results, the study suggests policy implications for the improvement of social workers' self- efficacy and OCB through empowering leadership in social welfare centers.

Wallace Thurman's The Blacker the Berry: Loving Oneself Enough to Be Selfish

  • Lee, Yonghwa
    • American Studies
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    • v.43 no.1
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    • pp.99-114
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    • 2020
  • This essay examines how Wallace Thurman envisions throug h Emma Lou a possibility of overcoming self-hatred and moving toward self-acceptance in his novel, The Blacker the Berry. Focusing on Emma Lou's departure from Alva and his deformed son, this essay contends that her "selfish" act is the first step toward self-acceptance. Describing his dark-skinned protagonist's pathetic attempts to belong to light-skinned people, Thurman mercilessly exposes and criticizes Emma Lou's psychological contradictions. Simultaneously, however, Thurman sympathizes with and shows some respect for her endeavors to make a difference in her life. Emma Lou's redemption from her self-hatred can come only when she realizes its detrimental effects on her life and learns to love herself enough to be selfish. By granting Emma Lou an opportunity to conduct a serious self-examination and resolve to sever ties with Alva, Thurman demonstrates a possibility of fighting against the color prejudice found both inside and outside oneself.

American Presidential Candidates' Self-Reliance Spirit and Voters' Evaluations of Their Personal Traits (미국 대통령 후보자의 자립정신과 인격적 특성에 대한 유권자 평가)

  • Kim, Chang-Nam
    • The Journal of the Korea Contents Association
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    • v.10 no.10
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    • pp.274-285
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    • 2010
  • In the United States, a marked emphasis on personal achievement has been among enduring values characterizing American culture from the beginning of the republic. Particularly, Americans have attached great value to the spirit of self-reliance in striving for personal achievement. However, there have been few empirical studies focusing on the effects of Americans' self-reliant spirit on American electoral politics. Through a field experimentation focusing on the voters of Portage County in Ohio, this study examined the effects of Americans' self-reliant spirit on the evaluations of presidential candidates' personal traits, which constitute the candidates' character. The results of this study demonstrated that American voters evaluated those presidential candidates who were described as self-reliant significantly more favorably than the presidential candidates who were not so described, for 8 out of the 11 personal traits. The findings provide meaningful evidence for ascertaining the potential and legitimacy of the influences of the spirit of self-reliance, in the American society including electoral politics.