• Title/Summary/Keyword: 자가적응

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Fuzzy Navigation and Obstacle Avoidance Control for Docking of Modular Robots (모듈형 로봇의 자가 결합을 위한 퍼지 주행 제어 및 장애물 회피 제어)

  • Na, Doo-Young;Noh, Su-Hee;Moon, Hyung-Pil;Jung, Jin-Woo;Kim, Yong-Tae
    • Journal of the Korean Institute of Intelligent Systems
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    • v.19 no.4
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    • pp.470-477
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    • 2009
  • Modular reconfigurable robots with physical docking capability easily adapt to a new environment and many studies are necessary for the modular robots. In this paper, we propose a vision-based fuzzy autonomous docking controller for the modular docking robots. A modular docking robot platform which performs real-time image processing is designed and color-based object recognition method is implemented on the embedded system. The docking robot can navigate to a subgoal near a target robot while avoiding obstacles. Both a fuzzy obstacle avoidance controller and a fuzzy navigation controller for subgoal tracking are designed. We propose an autonomous docking controller using the fuzzy obstacle avoidance and navigation controllers, absolute distance information and direction informations of robots from PSD sensors and a compass sensor. We verify the proposed docking control method by docking experiments of the developed modular robots in the various environments with different distances and directions between robots.

Comparisons of Self-esteem, Interpersonal Relationship, Happiness, and College Adjustment in Nursing Students by Type D Personality (D유형 성격에 따른 간호대학생의 자아존중감, 대인관계, 행복 및 대학생활적응 비교)

  • Shin, Kyung-Ah;Kang, Sook
    • Journal of Digital Convergence
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    • v.17 no.10
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    • pp.273-282
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    • 2019
  • The purpose of study was to examine and compare the self-esteem, interpersonal relationship, happiness, and college adjustment between Type D and non-Type D personality among nursing students. Subjects included a total 181 nursing students (Type D personality: n=53, non-Type D personality: n=128). Data were collected through personal interviews using a questionnaire. The collected date were analyzed using a ${\chi}^2$-test, Fisher's exact test, and independent t-test. There were significant differences on self-esteem, interpersonal relationship, happiness, and college adjustment between Type D and non-Type D personality among nursing students. Self-esteem showed significant differences in degree of adaption, interpersonal relationship in religion, happiness in economic status, college adjustment in religion and degree of adaption (Type D personality subjects). Type D personality lowered self-esteem, interpersonal relationship, happiness, and college adjustment in nursing students. Strategies for Type D personality in nursing students are needed to increase self-esteem, interpersonal relationship, happiness, and college adjustment.

Convergence Factors Affecting Nursing Students' Adjustment to College Life (간호대학생의 학교생활적응에 미치는 융복합적 영향요인)

  • Park, Dahye;Kim, Hyun-Jeong
    • Journal of the Korea Convergence Society
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    • v.9 no.1
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    • pp.353-361
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    • 2018
  • This study was conducted to identify the factors affecting nursing students' adjustment to college life. 364 students from six different nursing colleges were recruited into the study. The data were collected using questionnaires about bullying, peer support, ego-resilience and adjustment to college life and were analyzed using IBM SPSS 19.0 program. Data were collected from March 3rd, 2014 to December 12th, 2015. The results indicated that bullying(r=-.24, p<.001) had a significant negative association with nursing college adaptation. And adjustment to college life was positively correlated with peer support(r=.38, p<.001) and ego-resilience(r=.69, p<.001). The significant predictors of adjustment to college life were ego-resilience (F=334.33, p<.001), peer support(F=60.86, p<.001) and bullying(F=22.03, p<.001), explaining 47% of the variance. Based on the study results, we suggest that it is necessary to develop and apply the educational strategy to improve the peer support and ego-resilience for the adjustment to college life.

Influence of Attachment Injury and State-Trait Anxiety on the Marital Adjustment of Battered Women (가정폭력 피해여성의 애착손상 및 상태-특성 불안이 부부 적응에 미치는 영향)

  • Shim, Hee Jeong;Seo, Mia
    • The Journal of the Korea Contents Association
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    • v.15 no.3
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    • pp.133-145
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    • 2015
  • The purpose of this study was to investigate the effects of attachment injury and stsit-trait anxiety on marital adjustment of battered women. The participants were total 220 battered women who have experiences with violence from their spouse. Data were collected from March 20 to May 6 in 2014 from five shelters for battered women, seven counseling centers, and three shelters run by various religion. SPSS 18.0 was used for data analysis and descriptive statistics, ANOVA test, Scheffe's test, Pearson's correlation coefficients, and multiple regression were done. As study results, attachment injury, state and trait anxiety showed significant negative correlation. Marriage status, number of children, duration of violence, attachment injury, state anxiety, and trait anxiety were the significant variables to explain marital adjustment. The explanation power was 60.0%. This study results will be use to develop intervention program for enhancement of marital adjustment whereas to decrease attachment injury and state-trait anxiety.

Induction of Autophagy by Paeonia lactiflora Root Extracts through Upregulation p62/SQSTM1 in RAW264.7 Cells (작약(Paeonia lactiflora) 뿌리 추출물의 대식세포에서 p62/SQSTM1 증가를 통한 자가포식 유도)

  • Jin Boo Jeong
    • Korean Journal of Plant Resources
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    • v.36 no.4
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    • pp.275-281
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    • 2023
  • Autophagy contributes to enhancing the immune system (innate and adaptive immune system) against foreign pathogens. Autophagy of macrophages is used as a major indicator for developing vaccine adjuvants to increase the adaptive immune response. In this study, PLR activated autophagy and increased p62/SQSTM1. The knockdown of p62/SQSTM1 attenuated PLR-mediated autophagy. Inhibition of TLR4 blocked PLR-mediated increase in p62/SQSTM1 level and autophagy induction. In addition, inhibition of PI3K blocked HSL-mediated increase of p62/SQSTM1. PLR increased Nrf2 level and the inhibition of TLR4 and PI3K reduced PLR-mediated increase of Nrf2. Taken together, it is believed that PLR may induce autophagy through upregulating p62/SQSTM1 via TLR4/PI3K/Nrf2 signaling pathway.

Health Promotion Behavior and Health-related Quality of Life by Acculturation Levels among Chinese University Students in Korea (재한중국유학생의 문화적응환경에서의 건강증진행위와 건강관련 삶의 질)

  • Kim, Sun Jung;Choi, Kyongon
    • The Journal of the Korea Contents Association
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    • v.17 no.8
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    • pp.66-79
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    • 2017
  • This study was to identify the relationship between health promoting behaviors and health related quality of life at acculturation environment of Chinese international students in Korea. From November 2010 to December 2011, 395 Chinese international students in undergraduate, masters or doctorate courses from 10 universities and graduate schools in Seoul and vicinity participated in self-report survey of the acculturation level, the health promoting behaviors and SF-12, the health related quality of life. The data of 395 students were classified to 3 groups based on the acculturation level. The low level group showed the health promoting behaviors strongly influence the physical component score of quality of life. As the acculturation level increased, the health promoting behaviors closely affected to the mental health-related quality of life. The results indicated that the acculturation level may be control variable to define the relationship between the health promoting behaviors and the health-related quality of life.

The Effect of Organizational Adaptation of Workers' Adversity Quotation (직장인의 역경지수가 조직적응에 미치는 영향)

  • An, Ji-Yeon;Kim, Hye-Jin
    • The Journal of the Korea Contents Association
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    • v.15 no.9
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    • pp.295-306
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    • 2015
  • The study examined the adversity quotient to determine the organizational adaptation among office workers in Korea. Participants were 202 adults who work in general offices in Seoul and Gyeonggi-do. Data were collected from August to October in 2013. Adversity quotient was measured using Stoltz's Adversity Quotient Profile(AQP) and Correlation analysis and multiple regression analysis were done. In result, adversity quotient was significantly related with emotional intelligency and resilience. Multiple regression revealed that adversity quotient emerged as the most significant predictor of organizational adaptation. Adversity Quotient Profile could be a useful tool to measure the capacity of overcoming the adversity and applied to develop the education contents or program strategies.

The Effects of Fear of Negative Evaluation, Cognitive Emotional Regulation on Field Adaptation of New Graduate Nurses (부정적 평가에 대한 두려움, 인지적 정서조절이 신규간호사의 현장적응에 미치는 영향)

  • Jeong, Kwi-Nam;Lee, Haw-Jin;Kwon, Hae-Jin
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.10
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    • pp.6895-6904
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    • 2015
  • The purpose of this study was to analyze the relationships between fear of negative evaluation, cognitive emotion regulation and field adaptation of new graduate nurses and the possible moderating effect of cognitive emotion regulation. The participants of this study were 181 new graduate nurses who have worked for less than 1 year at a hospital, data was collected by using self-report questionaires. The results of this study were fear of negative evaluation score 3.25, cognitive emotion regulation score 3.18 and field adaptation score 2.92. Fear of negative evaluation had a positive correlation with maladaptive cognitive emotion regulation, and a negative correlation with field adaptation, and did not have on moderating effect. As this results, it strengthen field adaptation for new graduate nurses in a new circumstance through self-esteem enhancement programs. It is also required to manage by using an adaptive cognitive emotion regualtion.

VLSI Implementation of Adaptive mutation rate Genetic Algorithm Processor (자가적응 유전자 알고리즘 프로세서의 VLSI 구현)

  • 허인수;이주환;조민석;정덕진
    • Proceedings of the IEEK Conference
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    • 2001.06c
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    • pp.157-160
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    • 2001
  • This paper has been studied a Adaptive Mutation rate Genetic Algorithm Processor. Genetic Algorithm(GA) has some control parameters such as the probability of bit mutation or the probability of crossover. These value give a priori by the designer There exists a wide variety of values for for control parameters and it is difficult to find the best choice of these values in order to optimize the behavior of a particular GA. We proposed a Adaptive mutation rate GA within a steady-state genetic algorithm in order to provide a self-adapting mutation mechanism. In this paper, the proposed a adaptive mutation rate GAP is implemented on the FPGA board with a APEX EP20K600EBC652-3 devices. The proposed a adaptive mutation rate GAP increased the speed of finding optimal solution by about 10%, and increased probability of finding the optimal solution more than the conventional GAP

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Self-adaptive IoT Software Platform for Interoperable Standard-based IoT Systems (협업가능 표준기반 IoT 시스템을 위한 자가적응 IoT 소프트웨어 플랫폼 개발)

  • Sung, Nak-Myoung;Yun, Jaeseok
    • IEMEK Journal of Embedded Systems and Applications
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    • v.12 no.6
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    • pp.369-375
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    • 2017
  • In this paper, we present a self-adaptive software platform that enables an IoT gateway to perform autonomous operation considering IoT devices connected each other in resource-constrained environments. Based on the oneM2M device software platform publicly available, we have designed an additional part, called SAS (self-adaptive software) consisting of MAM (memory-aware module), NAM (network-aware module), BAM (battery-aware module), DAM (data-aware module), and DH (decision handler). A prototype system is implemented to show the feasibility of the proposed self-adaptive software architecture. Our proposed system demonstrates that it can adaptively adjust the operation of gateway and connected devices to their resource conditions under the desired service scenarios.