• 제목/요약/키워드: Self-potential

검색결과 1,447건 처리시간 0.026초

보완 골격 알고리듬을 이용한 구난로봇의 자체 충돌감지/회피 (Self-Collision Detection/Avoidance for a Rescue Robot by Modified Skeleton Algorithm)

  • 이원석;홍성일;박규현;강윤식
    • 한국군사과학기술학회지
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    • 제18권4호
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    • pp.451-458
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    • 2015
  • This paper handles self-collision avoidance for a rescue robot with redundant manipulators. In order to detect all available self-collisions in advance, minimum distances between arbitrary robot parts should be monitored in real-time. For the minimum distance estimation, we suggest a modified method from a previous skeleton algorithm which has less computation burden and realize collision avoidance based on a potential function using the proposed algorithm. The resultant command by collision avoidance should not disturb a given primary task, so null-space of joint solution from a CLIK is utilized for collision avoidance by a gradient projection method.

재해분석을 위한 텍스트마이닝과 SOM 기반 위험요인지도 개발 (On the Development of Risk Factor Map for Accident Analysis using Textmining and Self-Organizing Map(SOM) Algorithms)

  • 강성식;서용윤
    • 한국안전학회지
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    • 제33권6호
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    • pp.77-84
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    • 2018
  • Report documents of industrial and occupational accidents have continuously been accumulated in private and public institutes. Amongst others, information on narrative-texts of accidents such as accident processes and risk factors contained in disaster report documents is gaining the useful value for accident analysis. Despite this increasingly potential value of analysis of text information, scientific and algorithmic text analytics for safety management has not been carried out yet. Thus, this study aims to develop data processing and visualization techniques that provide a systematic and structural view of text information contained in a disaster report document so that safety managers can effectively analyze accident risk factors. To this end, the risk factor map using text mining and self-organizing map is developed. Text mining is firstly used to extract risk keywords from disaster report documents and then, the Self-Organizing Map (SOM) algorithm is conducted to visualize the risk factor map based on the similarity of disaster report documents. As a result, it is expected that fruitful text information buried in a myriad of disaster report documents is analyzed, providing risk factors to safety managers.

경계연결리더십이 조직구성원의 자기효능감, 역할 외 활동, 그리고 흡수역량에 미치는 영향 (The Effect of Boundary-spanning Leadership on Self-efficacy, Extra-role Behavior, and Absorptive Capacity)

  • 권정언;우형록
    • 지식경영연구
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    • 제20권1호
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    • pp.133-153
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    • 2019
  • Due to the uncertainty of dynamic business environment, modern organizations have been giving attention to dynamic capabilities beyond traditional notion of core competence. Among them, absorptive capacity and boundary-spanning activity are considered the most important. The former refers to activities regarding acquisition, assimilation, transformation and exploitation of internal and external knowledge. The latter is composed of boundary-loosening and boundary-tightening activities to detect internal or external information and then to preserve, protect, or acquire resources. Thus, both have achieved wide recognition as a potential source of change and innovation. This study investigated the cross-level relation between boundary-spanning leadership at team level and absorptive capacity at individual level. We also explored self-efficacy and extra-role behavior that can affect employees' absorptive capacity. To test multi-level analysis, the survey data were collected from 862 members in 137 teams of different firms. Results revealed that boundary-spanning leadership had the positive cross-level impact on absorptive capacity in the team context. Moreover, absorptive capacity was positively associated with self-efficacy and extra-role behavior at individual level. Based on these findings, we provided theoretical and practical implications to address rapidly changing environments and discussed limitations of this paper for further research.

Effect of Self-Regulatory Focus on Purchase Intentions of Foreign-owned Perceived Local Brands

  • Xi LIU
    • 산경연구논집
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    • 제14권4호
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    • pp.1-10
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    • 2023
  • Purpose: This paper aims to investigate how self-regulatory focus (SRF) influences the relationship between perceived brand localness (PBL) and purchase intentions (PI). This research adopted both domestic and foreign-owned brands to examine the moderating effect of self-regulatory orientations and product types respectively to exclude the interference of brand origin. Research design, data, and methodology: This study surveyed Chinese consumers and collected data using social media applications. ANOVA analysis and PROCESS modeling were adopted to complete the empirical analysis. Results: This research demonstrates that brand origin does not inhibit the positive impact of PBL on purchase intentions regardless of whether it originates from mainland China or not. Study 1 proved that the effect of PBL on PI is more convincing among consumers with promotion focus orientations. In study 2, higher purchase intentions were found for hedonic perceived local brands among promotion-focused consumers while significant preferences were found for utilitarian perceived local brands among prevention-focused consumers. Conclusions: This research complements the literature about the potential psychological factors influencing PBL and contributes to marketers in developing effective marketing strategies and appropriate positioning decisions. Overall, this study has important theoretical and managerial contributions to international marketing, particularly in the context of the current recession.

보육교사의 효능감이 직무만족에 미치는 영향 : 국공립 어린이집과 민간 어린이집 보육교사의 비교 분석 (Influence of Teachers Self-efficacy on Job Satisfaction : Analysis by Comparing Public and Private Child Care Centers)

  • 이점자;김형모
    • 한국보육지원학회지
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    • 제8권2호
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    • pp.101-120
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    • 2012
  • 본 연구는 보육현장의 질적 수준을 향상시키기 위한 목적으로 국공립 어린이집과 민간 어린이집에서 근무하는 보육교사들을 대상으로 보육교사의 효능감이 직무만족에 미치는 영향을 살펴보고자 한다. 보육교사들이 어린이집에서 근무하는데 변화의 잠재력을 보여주고 이들을 발전시킬 기회를 제공하기 위해서는 보육교사의 효능감이 무엇보다 중요하다. 또한 이를 바탕으로 영유아와 학부모에게 양질의 보육서비스를 제공하기 위해서는 보육교사의 직무만족이 필수적이다. 이에 본 연구에서 국공립 어린이집과 민간 어린이집에서 근무하는 보육교사들의 개인적 특성과 효능감을 비교하여 보육교사의 직무만족 향상을 위한 다양한 실천과제를 논의하였다. 연구결과는 첫째, 어린이집 소재지는 국공립 어린이집과 민간 어린이집 보육교사 모두의 직무만족도에 유의한 영향을 미치는 공통요인으로 나타났다. 둘째, 국공립 어린이집 보육교사들은 민간 어린이집 보육교사들과는 달리 가정연계 및 긍정적 학습환경 조성효능감에서 직무만족도에 유의한 영향을 미치고 있었다. 셋째, 국공립 어린이집과 민간 어린이집 보육교사의 직무만족도에 있어 의사결정참여 효능감이 공통적으로 유의한 영향요인으로 나타났다.

다문화가정 아동의 언어능력과 부모-자녀 응집성이 자아존중감 및 문화적응에 미치는 영향 (Effects of Korean Proficiency and Parent-child Cohesion on Self-esteem and Acculturation among Children from Multicultural Families)

  • 김미예;임지영;그레이스정
    • 대한간호학회지
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    • 제42권6호
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    • pp.879-888
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    • 2012
  • Purpose: There is evidence that parent-child cohesion is a potentially influential factor in children's self-esteem and acculturation. However, no research to date has examined cohesion with parents as a potential pathway between Korean proficiency and self-esteem or acculturation among children from multicultural families. This study was done to address these limitations by examining whether and to what extent cohesion with parents mediated the effect of Korean proficiency on self-esteem and acculturation among children from multicultural families. Methods: Data were collected from a sample of 138 mothers and their children living in Seoul, Daegu, Kyungi province, and Kyungpook province. Multiple regression analysis was used to examine the relationships between the variables of interest. Mediation effects of cohesion with parents were tested by following the procedure recommended by Baron and Kenny (1986). Results: Cohesion with parents partially mediated the relationship between Korean proficiency and self-esteem. For children's acculturation, the effect of Korean proficiency was partially mediated through father-child cohesion. Mother-child cohesion completely mediated the relationship between Korean proficiency and acculturation. Conclusion: These findings suggest that to help children from multicultural families experiencing difficulties with self-esteem or acculturation, it might be useful to develop programs that are aimed at strengthen cohesion with parents.

대규모 PSM 사업장의 자체감사에 대한 효율적 운영 연구 (A Study on the Efficient Operation of Self-audit in Large-scale PSM Workplace)

  • 민세홍;김석원
    • 한국화재소방학회논문지
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    • 제27권6호
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    • pp.115-121
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    • 2013
  • 산업시설의 대형, 첨단화에 따라 각 산업현장에서 다양한 종류의 유해 위험물질이 대량으로 사용되고 있다. 이에 따라 독성누출, 화재, 폭발 등의 중대산업사고가 지속적으로 발생되고 있으며 그 위험은 점점 높아지고 있는 실정이다. 여러 예방 시스템 중 Process Safety Management (PSM, 공정안전관리)제도가 있지만 아직까지도 제도의 취지와는 다르게 자율적인 운영보다는 해당 관청의 지도 점검에 맞추어 PSM 제도가 운영되고 있어 보이지 않는 중대위험이 잠재한 대규모 PSM 사업장의 안전성 확보에는 한계가 있다고 할 수 있다. 사업장의 안전시스템을 검증하기 위해서는 기존 시스템의 보완이 절실히 요구된다. 이에 본 연구에서는 PSM 자체감사의 중요성을 강조하고, 현재 제도의 문제점을 분석하여, 이에 대한 시스템 검증으로 제도 개선의 제안과 효율적인 자체감사 운영을 통해 자율 안전성을 강화하도록 하였으며, 또한 제도적으로도 이를 뒷받침할 수 있는 방법을 연구하여 제안하였다.

직무자율성과 자기효능감이 창의적 행동에 미치는 영향: 스마트워크 환경에서 지식공유의 매개효과를 중심으로 (Effects of Job Autonomy and Self-Efficacy on Creative Behavior: Focusing on the Mediation Effect of Knowledge Sharing in Smart Work Environment)

  • 고은정;이성진;김상수
    • 지식경영연구
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    • 제19권2호
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    • pp.163-185
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    • 2018
  • In order to solve problems in an uncertain and complicated management environment of the modern world, a creative solution that combines diverse perspectives, knowledge, and effort based on diversity within an organization is required. Smart work environment provides an opportunity to express the potential diversity of an individual, extending the source of ideas to the organization, enhancing communication, and linking and sharing information and knowledge. So, this results in increased creative behavior. The purpose of this study is to investigate the effect of the process of connecting and sharing information and knowledge of organizational members on creative behavior and the effect of smart work environment in the process. The purpose of this study is to identify roles of job autonomy, self-efficacy, knowledge sharing and smart work environment in creative process. For the study, 353 surveys with work use group(156 people) and unused group(197 people). Statistical analysis included validity and reliability analysis, structural model analysis. The results showed that self-efficacy and job autonomy had positive effects on creative behavior and knowledge sharing, and job autonomy had a positive effect on self-efficacy. Knowledge sharing has a positive effect on creative behavior, and mediates the relationship between self-efficacy, job autonomy and creative behavior. Particularly, knowledge sharing has a more positive effect on smart work use group. In case of smart work use group, self-efficacy and job autonomy have a relatively high influence on knowledge sharing rather than direct influence on creative behavior appear. This result implies that the achievements of smart work are revealed in terms of knowledge sharing and creative behavior.

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

  • 김창남
    • 한국콘텐츠학회논문지
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    • 제10권10호
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    • pp.274-285
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    • 2010
  • 이 연구는 미국 오하이오주 포티지 카운티의 유권자들을 대상으로 한 실험연구를 통해 미국 대통령 후보자의 자립정신이 그들의 캐릭터를 구성하는 인격적 특성에 대한 유권자들의 평가에 어떤 영향을 미치는지 분석해 보았다. 이를 통해 이 연구는 미국인의 문화적 가치인 자립정신이 미국의 선거정치에 미치는 영향력을 가늠해 보았다. 연구결과, 미국 대통령 후보자의 자립정신은 이 연구에서 제시된 11개의 인격적 특성 중 정직성, 신뢰성, 동정심을 제외한 나머지 8개 인격적 특성에 대한 평가에서 의미있는 영향을 미치는 것으로 나타났다. 구체적으로, 미국 대통령후보자의 자립정신은 이들의 능력, 독립성, 결단력, 애국심, 리더십, 카리스마에 대한 유권자들의 평가에 큰 영향을 미치는 것으로 나타났다. 특히 미국 대통령 후보자의 자립정신은 그들의 카리스마에 가장 큰 영향을 미치는 것으로 나타났다. 이 분야에 대한 실증적 연구를 찾아보기 어려운 상황에서 이 연구는 미국인의 문화적 가치, 특히 자립정신이 그들의 선거정치에 미치는 영향력과 정당성을 확인하는 중요한 증거를 제시하고 있다.

미술치료 교양강좌가 대학생의 자기성장에 미치는 효과 (The Effect of Art Therapy for University Students' Self-development in the Liberal Arts Programs)

  • 홍은주;문현영
    • 한국지역사회생활과학회지
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    • 제21권3호
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    • pp.427-439
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    • 2010
  • This study aimed to investigate the potential of Art Therapy to be part of Liberal Arts programs for university students. The study is based on the examination of the effect after the program. The program was combined with Art Therapy theory and with a practical part for students to have a psychological understanding of self development(ego-identity, self-esteem and interpersonal relationship). The subjects were 38 students who were registered in the Art Therapy course at N university. It was a two hour-course and was offered every week. The first 40 minutes of the class were used for explaining Art Therapy theory, and the last 80 minutes were given for practice. To analyze the effect of the program, the index of ego-identity, the index of self-esteem and the index of interpersonal relationship were used. Frequency, percentage and standard deviation were calculated with SPSS 12.0, and a paired t-test was followed. According to the results, this art therapy program has an effect on the subjectivity and future-confidence of students, which includes the sub-categories of self-identity. However, there was no effect found in the category of self-esteem. Comprehension, which is under the interpersonal relationships category, showed statistically meaningful differences after the program was done. Based on this study, it was revealed that Art Therapy as a part of the Liberal Arts programs, which incorporates a large number of students, can have a similar effect on people compared to the Group Art Therapy, which incorporates a relatively smaller number of people.