• 산업경영시스템학회지
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• 제28권4호
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• pp.69-78
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• 2005

RFID is a technique that plays an important role in identifying and tracking the movement of objects by inserting small chips in objects. It is somewhat similar to bar codes from the various points of applications, but is hopefully considered to lead to tremendous development by solving the present drawbacks of bar codes such as slow identification. Speed, low rate of identification, limitation on the distance of identification and on the amount of saving capacity. Through the development of RFID technique, revolutionary growth is anticipated in the area of logistics and commodity distributional systems. Futhermore, the self processing RFID makes the communications between man and objects possible, and through which introduction of ubiquitous atmosphere will be accelerated. Therefore RFID is considered as one of the most attracting area of investment by developed countries as well as Korea. In this paper, we analyze the world wide tendency on RFID, and propose the conditions for activating RFID industry and also suggest directions for national strategy for diffusing RFID.

• 근관절건강학회지
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• 제20권3호
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• pp.207-213
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• 2013

Purpose: The purpose of this study was to examine the levels of life satisfaction and identify factors influencing life satisfaction in Korean baby-boomer men with drinking problems. Methods: The study used cross-sectional design with secondary analysis of the 7th data of Korean Welfare Penal Study collected in 2012 from 6,000 Korean households. Among 1,572 baby-boomers born between 1955 and 1963, 349 men with a drinking problem were selected as a sample by the Alcohol Use Identification Test (AUDIT) scores. Levels of depression, self-esteem, and life satisfaction were measured. Descriptive statistics, t-tests, ANOVA, Pearson's correlation coefficients, and stepwise multiple regression were conducted with SPSS/WIN 21.0. Results: The findings indicated that the mean AUDIT score was 13.7. Means were 2.8 for depression, 20.2 for self-esteem, and 23.2 for life satisfaction. The results of multiple regression analysis showed that self-esteem, depression, educational level, and levels of problem drinking significantly predicted life satisfaction, explaining 41.1% of the variance. Conclusion: Problem drinking, depression, and self-esteem were important to improve life satisfaction among Korean baby-boomer men. Further study is necessary to examine the mediating effects of depression and self-esteem in the relationship between problem drinking and life satisfaction.

• 한국사회복지학
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• 제48권
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• pp.302-332
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• 2002

This study aimed at finding out the effectiveness of Solution-Focused Group Therapy Program in reducing delinquents' problematic behaviors and increasing their self-esteem, impulse control, communication with the parents and bettering their daily life habits. Thirty one male delinquents under probation from a Probation Center in Seoul were chosen and given a Solution-Focused Group Therapy for 30 hours. For a comparison purpose another 31 male delinquents were chosen from the same Center. To evaluate the effectiveness of the Program, items were selected and used from Rosenberg's Self-Esteem Scale. Youth Outcome Questionnaire Self Report 2.0, Brief Family Therapy Center-Child/Teen Solution Identification Scale. Participants' and parents' self-reports on participants' changes and session progress records were also used for qualitative evaluation. The results showed some positive changes in participants' self-esteem, self-control, communication style with parents, and daily life habits. No illegal act was reported after nine months upon this Program, which posits this type of Solution-Focused Group Therapy Program as a viable solution for the prevention and recidivism of juvernile crimes.

• 한국직업건강간호학회지
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• 제31권4호
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• pp.198-206
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• 2022

Purpose: This study is investigate the role conflict, professional self-concept, and job satisfaction degree of the physician assistant nurses, and to grasp the factors affecting job satisfaction. Methods: Data were collected from September to October, 2018 and 156 physician assistant nurses working at one certified tertiary hospital, four general hospitals, using self-report questionnaires. Data were analyzed using descriptive statistics, t-test, ANOVA, Scheffe's test, Pearson's correlation coefficient and stepwise multiple regression. Results: The degree of job satisfaction of the subject was 2.76 out of 5. The influential factors in the job satisfaction of the subjects were professional self-concept (β=.51, p<.001), and role conflict (β=-.29, p<.001), affected job satisfaction by 53.5%. Conclusion: In order to improve the job satisfaction of physician assistant nurses, the role conflict should be solved and a plan to form a positive self-concept should be sought. Therefore, through the identification of the roles that are appropriate to the situation in Korea and the legal and institutional positioning, they will need to be recognized and developed.

• 한국산업정보학회논문지
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• 제22권2호
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• pp.107-122
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• 2017

본 연구는 긍정심리자본(자기효능감, 낙관주의, 희망, 복원력)이 직무만족을 매개로 조직 동일시와 태만행동에 미치는 영향을 분석하고자 한다. 이를 통해 긍정심리자본이 어떤 경로를 통해 조직 동일시, 태만행동에 영향을 미치는지를 통합적으로 알아보고자 한다. 부산 소재 금융업을 대상으로 공변량 구조방정식 모형을 통해 실증 분석을 하였다. 실증분석 결과 첫째, 긍정심리자본 중 자기효능감, 희망, 복원력이 직무만족에 정(+)의 유의적인 영향을 미치는 것으로 나타났으며 그 중에서 희망이 직무만족에 가장 큰 영향을 미치는 것으로 나타났다. 반면 낙관주의는 직무만족에 유의적인 영향을 미치지 않는 것으로 나타났다. 둘째, 직무만족이 조직 동일시에 정(+)의 유의적인 영향을 미치는 것으로 나타났으며 셋째, 직무만족이 태만행동에 부(-)의 유의적인 영향을 미치는 것으로 나타났다. 넷째, 긍정심리자본과 조직 동일시 및 태만행동의 관계에서 직무만족의 매개효과를 살펴본 결과 희망과 태만행동의 관계에서 직무만족의 매개효과를 제외하고 모두 매개효과가 있는 것으로 나타났다. 끝으로 본 연구의 요약 및 시사점, 한계점 그리고 미래 연구방향을 제시하였다.

• 한국게임학회 논문지
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• 제13권6호
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• pp.53-64
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• 2013

본 논문에서는 부모의 자녀 양육태도와 청소년이 가진 주관적 계층감의 차이에 따라 청소년의 중독적 게임이용이 어떠한 차이를 나타내는지를 살펴보았다. 16세에서 24세 사이의 총 177명의 게임이용연령층을 대상으로 한 온라인 서베이 분석 결과, 전체 집단의 경우 부모의 양육태도 중 과잉기대요인과 청소년 개인이 가진 높은 자기통제 수준이 게임중독이 낮은 것으로 나타났다. 주관적 계층감에 따라 전체 집단을 나누어 다시 살펴본 결과, 주관적 계층감이 낮은 집단(주관적 빈곤감이 높은 그룹)에서는 부모의 양육태도 중 과잉기대 요인이 높고, 자기통제 수준이 높을수록 게임중독이 낮아지는 것으로 밝혀졌다. 반면, 주관적 계층감이 높은 집단(주관적 빈곤감이 낮은 그룹)에서는 부모의 양육태도 중 간섭 요인만이 게임중독을 낮추는 유일한 요인으로 드러났다. 이는 부모의 양육태도 중 특정 요인과 청소년이 가진 주관적 계층감이 게임을 비롯한 다양한 미디어의 중독적 사용과 중요한 관련을 가지고 있음을 시사하는 결과라 할 수 있다.

• Smart Structures and Systems
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• 제29권1호
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• pp.1-16
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• 2022

Despite recent breakthroughs in deep learning and computer vision fields, the pixel-wise identification of tiny objects in high-resolution images with complex disturbances remains challenging. This study proposes a modified U-net for tiny crack segmentation in real-world steel-box-girder bridges. The modified U-net adopts the common U-net framework and a novel Self-Attention-Self-Adaption (SASA) neuron as the fundamental computing element. The Self-Attention module applies softmax and gate operations to obtain the attention vector. It enables the neuron to focus on the most significant receptive fields when processing large-scale feature maps. The Self-Adaption module consists of a multiplayer perceptron subnet and achieves deeper feature extraction inside a single neuron. For data augmentation, a grid-based crack random elastic deformation (CRED) algorithm is designed to enrich the diversities and irregular shapes of distributed cracks. Grid-based uniform control nodes are first set on both input images and binary labels, random offsets are then employed on these control nodes, and bilinear interpolation is performed for the rest pixels. The proposed SASA neuron and CRED algorithm are simultaneously deployed to train the modified U-net. 200 raw images with a high resolution of 4928 × 3264 are collected, 160 for training and the rest 40 for the test. 512 × 512 patches are generated from the original images by a sliding window with an overlap of 256 as inputs. Results show that the average IoU between the recognized and ground-truth cracks reaches 0.409, which is 29.8% higher than the regular U-net. A five-fold cross-validation study is performed to verify that the proposed method is robust to different training and test images. Ablation experiments further demonstrate the effectiveness of the proposed SASA neuron and CRED algorithm. Promotions of the average IoU individually utilizing the SASA and CRED module add up to the final promotion of the full model, indicating that the SASA and CRED modules contribute to the different stages of model and data in the training process.

• 대한간호학회지
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• 제38권2호
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• pp.248-257
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• 2008

Purpose: This study was designed to search for nursing intervention strategies centering around the meaning structure of the nurse's turnover experience by applying phenomenological methods. Methods: The participants were 6 nurses in small and medium sized hospitals who had experienced at least 1 turnover. Data were collected used MP3 records. The data analysis was done by Giorgi (1985) method. Results: The results were divided into the following categories: 1) Careless decision: wrong decisions, imprudent desire, insufficient patience, unclear future, 2) Inappropriate working environment: irregular working hours, high workload, poor working environment, insufficient understanding of related divisions, lack of opinion collection, low salary, 3) Interpersonal relations problems: discord with colleagues, difficulty in relationships with others, difficulty in daily lives, 4) Lack of specialization: feeling of inertia, lack of role identification, lack of self identification, 5) Inappropriate coping: regret with clinical challenges, difficulty with a new environment, repentance, expectation, relative humility, 6) New self-dignity: expectation, new challenge, relaxing lives, decisions based on future-oriented confidence. Conclusion: The finding of this study will offer profound information on the nurse's turnover experience and provide basic raw materials for improving the quality of nursing performance and contribute to the development of hospital organization.

• 복식문화연구
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• 제7권6호
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• pp.28-40
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• 1999

The purpose of this study was to understand the Korean teenagers\` clothing behavior through pointing out the factors that clothing behavior of teenagers that was initiated from the important reference group, TV stars. The subject of this study were 570 purposively selected students at female middle and high school students in Seoul. The results were as follows : 1. The clothing conformity to TV stars relating to demographic variables was influenced significantly by location and personal expense variable in the high school group. 2. The exhibition showed a more important role to the clothing conformity in middle school group than in high school group. 3. The clothing conformity to TV stars relating to the clothing related variables was significantly affected by self-confidence to clothing than clothing normative recognition, clothing risk recognition and degree of clothing importance regardless of groups. 4. The clothing conformity to TV stars relating to TV media variables was affected by TV media star identification variable in both groups. And in case of middle school group, interests in TV stars also had influence on the clothing conformity to TV stars. And in case of high school group, interests in TV had effect on the imitation to TV stars\` clothing. As middle school students tend to have self-identification about a particular person, TV media stars become the reference group for the adolescence to follow their clothing.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.1606-1611
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• 2005

The goal of this paper is to develop a self localization of mobile robot using UHF RFID landmark. We present landmark, a location sensing archetype system that uses UHF Radio Frequency Identification (UHF RFID) technology for locating objects inside buildings. The major advantage of landmark is that it improves the overall accuracy of locating objects by utilizing the concept of reference tags. Based on experimental analysis, we demonstrate that passive UHF RFID is a viable and cost-effective candidate for indoor location sensing. We conduct a series of experiments to evaluate performance of the positioning of the landmark System. In the standard setup, we place RF Reader which has two antennas and 25 tags in our lab. This research uses the assumption-based coordinates (ABC) algorithm[3] for determining the localization of robot. Also, we show how Radio Frequency Identification (UHF RFID) can be used in robot-assisted indoor navigation for the visually impaired. The experiments illustrate that passive UHF RFID tags can act as reliable landmark that trigger local navigation behaviors to achieve global navigation objectives.