• 제목/요약/키워드: stress results

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패션 스트레스는 어떻게 측정할 수 있는가? 패션 스트레스의 다차원 척도 개발 및 타당화 (How to measure fashion stress? Development and validation of a multidimensional scale for fashion stress)

  • 석효정;이은진
    • 복식문화연구
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    • 제32권2호
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    • pp.181-198
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    • 2024
  • Fashion stress is a pertinent aspect of modern consumer culture that has been underexplored in academic research. This study developed a conceptual framework of fashion stress and a multidimensional scale to measure consumers' fashion stress. The qualitative study included literature reviews on consumption stress, shopping stress, and consumer behavior, as well as focus group interviews to gain insight into various dimensions of fashion stress. NVivo 12.0 was used to analyze the qualitative data and identify core categories following the grounded theory methodology. The quantitative study involved a preliminary and a primary surveys to verify the validity and reliability of the fashion stress scale. A total of 220 questionnaires were used for data analysis. The results show that fashion stress consists of eight factors: care, shopping, fit, brand, financial, closet, style, and disposal. Choice difficulty plays a significant role in all factors of fashion stress. Moreover, shopping stress had a negative impact on impulse buying, while other factors such as fit, brand, closet, and disposal stress had a positive impact on impulse buying. Thus, fashion stress is a potential antecedent of impulsive consumer behavior. The results also confirm the validity and reliability of the scale. The fashion stress scale developed in this study offers researchers a valuable tool for assessing and understanding consumer experiences.

U자형 구조의 피로특성에 대한 잔류응력의 영향 평가 (Evaluation of Residual Stress Effect about Fatigue Characteristic of U-shaped Structure)

  • 김상영;구재민;석창성;모진용
    • 한국정밀공학회지
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    • 제27권4호
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    • pp.79-86
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    • 2010
  • Mechanical structures with power sources experience repeated force produced by motors. In result, the life of the pipes reduces and ultimately, the pipes collapse. Such pipes are formed into several shapes and particularly, the U-shape pipe is damaged frequently. In most cases, the U-shape pipe is made with a straight pipe by complicated bending work. During this work process, plastic deformation of the pipe produces residual stress in the pipe. This residual stress significantly affects the fracture behavior of the pipe and induces the change of the stress ratio (min. stress/Max. stress = R). For this reason, residual stress has to be evaluated. In this paper, the residual stress of a U-shaped pipe was evaluated by FEM analysis. In addition, fatigue tests of the U-shaped pipe were performed by using a uniaxial fatigue testing machine. The results of the fatigue test were modified with the results of FEM (Finite Element Method) analysis for residual stress. The modified fatigue test results of the U-shaped pipe were compared with those of a straight pipe.

Undrained strength-deformation characteristics of Bangkok Clay under general stress condition

  • Yimsiri, Siam;Ratananikom, Wanwarang;Fukuda, Fumihiko;Likitlersuang, Suched
    • Geomechanics and Engineering
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    • 제5권5호
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    • pp.419-445
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    • 2013
  • This paper presents an experimental study on the influence of principal stress direction and magnitude of intermediate principal stress on the undrained stress-strain-strength behaviors of Bangkok Clay. The results of torsional shear hollow cylinder and advanced triaxial tests with various principal stress directions and magnitudes of intermediate principal stress on undisturbed Bangkok Clay specimens are presented. The analysis of testing results include: (i) stress-strain and pore pressure behaviors, (ii) stiffness characteristics, and (iii) strength characteristics. The results assert clear evidences of anisotropic characteristics of Bangkok Clay at pre-failure and failure conditions. The magnitude of intermediate principal stress for plane-strain condition is also investigated. Both failure surface and plastic potential in deviatoric plane of Bangkok Clay are demonstrated to be isotropic and of circular shape which implies an associated flow rule. It is also observed that the shape of failure surface in deviatoric plane changes its size, while retaining its circular shape, with the change in direction of major principal stress. Concerning the behavior of Bangkok Clay found from this study, the discussions on the effects of employed constitutive modeling approach on the resulting numerical analysis are made.

유한요소 해석에 의한 맞대기 용접 이음의 응력집중에 과한 연구 (Finite Element Analysis of the Stress Concentrations for Butt Welded Joints)

  • 구병춘;최병일;김재훈
    • Journal of Welding and Joining
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    • 제22권4호
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    • pp.59-64
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    • 2004
  • The purpose of this study is to investigate the influence of weld bead profiles on stress concentration factors of double V groove butt-welded joints. The influence of three parameters such as toe radii, flank angles and bead heights on the stress concentration factors is studied by finite element analysis. It is shown that the three parameters have similar effects on the stress concentration factors. Finally a formula to estimate the stress concentration factors considering the three parameters and others is proposed and estimated results are compared with the results obtained by finite element analysis.

학령기 아동의 스트레스와 대처행동에 관한 연구 (A Study on the Stress and Stress Coping Behavior of Elementary School Children)

  • 김주연;김정순
    • 지역사회간호학회지
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    • 제10권1호
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    • pp.252-261
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    • 1999
  • The purpose of this study was to investigate the daily stress and stress coping behavior of elementary school children. The subjects for this study were 372 children fourth, fifth and sixth graders from an elementary school in Pusan. We adopted Won - Joo Chung's research instrument (1997) for measuring stress and coping behavior in this study. Statistical techniques such as frequency, percentage, mean, standard deviation, order, and Pearson correlation were used to examine the research questions of this study. The results of this study were as follows: 1. The most common instance of stress to be experienced by all children was the stress from school life, followed by social pressures, individual pressures and family environment. 2. A positive revaluation was the most commonly used stress-coping behavior, followed by behavioral mood conversion, spiritual support, problem-facing behavior, an information search for problem-solving, physical separation for emotional relaxation, avoidance, emotional aggressiveness and emotional expression. 3. Stress-coping behavior had a positive and significant correlation with the stress score(r = .4391, p= .000). In conclusion, the stress from school life was the most common experienced by all children. While independent effort in problem-solving was unsufficient, stress coping behavior had positive results. Therefore, this study verified the necessity of minimizing the stress children experience from school life and of helping them attain desirable stress-coping behaviors.

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Job Stress of Mobile Communication Network Construction Workers

  • Lee, Dong-Gu;Yoon, Hoon-Yong
    • 대한인간공학회지
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    • 제34권6호
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    • pp.549-561
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    • 2015
  • Objective: The purpose of this study was to investigate the job stress factors of mobile communication network construction workers using survey based on 'Job stress factors evaluation tool for Koreans' that was developed by KOSHA in 2003. Background: Due to the rapid growth of penetration rate of smartphone, the necessity of LTE service changing from 3G network was brought up. The demand of LTE network construction in a short period of time leads to the aggravation of the job stress of mobile communication network construction workers. Method: Two hundred and fifty workers who were in the mobile communication network industry participated in this study, and among them 206 responses were analyzed for this study due to the unreliability and insincerity of responses. The eight job stress factors which are physical environment, job demand, job autonomy, relation conflict, job instability, organizational system, inadequate compensation, workplace culture were analyzed. Results: The job stress factors of mobile communication network construction workers were compared to those of other industry workers, and other work related characteristics were analyzed. The results showed that the stress level of a physical environment and job requirement were relatively higher than those of manufacturing industry workers, meaning that mobile communication network construction workers have rough working conditions and increased amount of work due to the demand of LTE network construction. The stress level of physical environment for outdoor job workers was relatively higher than that of indoor job workers. With the analytical result for level of job satisfaction, significant difference was observed (p <0.05) with every factor, and the job stress was found the highest with those not satisfied with every factor Conclusion: From the results of this study, the work loss due to the job stress could be prevented, and accurate stress factors could be removed at the workplace. Application: The results of this study may not represent the whole mobile network construction workers, the effort for job stress management is needed to improve the work efficiency and the workers' quality of life.

초등영재와 일반학생의 학업스트레스, 스트레스 대처방식, 학업소진 비교 및 관계 분석 (Comparison of Academic Stress, Stress Coping and Academic Burnout between Elementary Gifted Students and General Students and Analysis of the Relationships)

  • 안종혁;유미현
    • 영재교육연구
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    • 제24권2호
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    • pp.169-189
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    • 2014
  • 본 연구의 목적은 초등 영재학생 및 일반학생의 학업스트레스, 스트레스 대처방식 및 학업소진을 비교하고 변인들 사이의 관계를 분석하는 것이다. 이를 통해 초등 영재학생과 일반학생을 정서적으로 잘 이해하고 지도하기 위한 기초자료를 제공할 뿐 아니라 학업스트레스와 학업소진을 감소시켜 정서적으로 건강한 발달을 도모할 수 있다는 데 의미가 있다. 본 연구를 통해 얻은 결과는 다음과 같다. 첫째, 초등 일반학생이 영재학생보다 학업스트레스, 학교 학업스트레스, 과외 학업스트레스를 더 높게 인식하고 있는 것으로 나타났다. 둘째, 초등 영재학생은 적극적 및 사회지지 추구적 스트레스 대처방식을 더 많이 사용하며 일반학생은 소극/회피적 및 공격적 스트레스 대처방식을 더 많이 사용하는 것으로 나타났다. 셋째, 초등 일반학생은 영재학생에 비해 학업소진 정도가 더 높은 것으로 나타났으며 초등 일반학생은 주당 평균 사교육(학원 및 과외 학습) 시간이 평균 이상인 학생이 그렇지 않은 학생보다 학업소진 정도가 더 높은 것으로 나타났다. 넷째, 학업스트레스가 높은 영재학생이 스트레스 대처방식 중 소극/회피적 및 공격적 대처방식의 사용이 높은 것으로 나타났다. 상관분석 결과 학업스트레스와 학업소진과는 유의미한 정적 상관관계가 나타났다. 위계적 회귀분석 결과 학업스트레스와 스트레스 대처방식은 학업소진에 유의미하게 영향을 미치는 것으로 나타났다.

과압밀점토의 응력이력 의존성에 관한 연구 (The Effects of Stress History on the Behaviour of Overconsolidated Clay)

  • 김병일;신현영;김용수;김수삼
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2001년도 봄 학술발표회 논문집
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    • pp.161-166
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    • 2001
  • Overconsolidated clays have a different stress history according to the deposit environment. The stress history is classified into (i) rotation angle of stress path, (ii) overconsolidation ratio, and (iii) magnitude of length of recent stress path. Stress-strain behaviour of overconsolidated clays strongly depends on these stress history. In this study a series of drained stress path tests were carried out. Test results indicated that stress-strain behaviour of overconsolidated clay(focused on strain rate) depends on OCR and length of recent stress path, especially rotation angle.

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상수도용 도복장간관의 용접 및 외부하중에 의한 응력 특성에 관한 연구(II) - 복합외부하중 및 후열처리에 따른 용접부의 응력분포 특성 - (A Study on the Stress Distribution of Steel Water Pipes(II) - Characteristics of Stress Distribution by External Forces and PWHT -)

  • 윤석환;이승기;나석주;고명환
    • Journal of Welding and Joining
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    • 제19권3호
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    • pp.292-297
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    • 2001
  • One of the major characteristics that affects the life of welded steel water pipes is the stress distribution caused by welding and external forces. Some studios have bean carried out on the residual stress of steel water pipes. But the results on the stress distributions by welding and complex external forces are rare, because real water pipes operate under the ground and many kinds of external forces act simultaneously on the joints. To understand the complex stress distributions of welded joints, therefore predictions by numerical or analytic methods are required. In this study, temperature and stress distributions in steel water pipes produced by welding are predicted by a three-dimensional finite element method(FEM). Based on these results, stress distributions by welding and complex external forces are evaluated by adopting the same numerical method. The influence of some post weld heat treatments on residual stress distributions is also investigated.

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통신업 근로자의 직무스트레스와 사회심리적 스트레스의 관련성 (The Relationship between Job Stress and Psychosocial Stress in Telecommunication Service Workers)

  • 박용성;허원준;정병용
    • 대한안전경영과학회지
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    • 제7권3호
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    • pp.73-84
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    • 2005
  • This study examined the associations between job stress and psychosocial stress in telecommunication service workers. In this survey, four hundred seventy workers and six variables(general characteristics, state of health, job characteristics, personality, psychosocial characteristics, and job stress) were used to measure worker's subjective satisfaction and status of stress. The results of this study indicated that 135 workers($28\%$) were classified into a high risk group to stress, 317 workers($67\%$) were into a potential risk group, and only 18 workers($6\%$) were into a healthy group. Also the results indicated that job stress outcomes related to job characteristics, personality, and psychosocial characteristics.