• 제목/요약/키워드: Design Practice

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I형 프리스트레스트 콘크리트 거더교의 활하중 분배 (Live Load Distribution in Prestressed Concrete I-Girder Bridges)

  • 김광양;강대희;이환우
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2008년도 정기 학술대회
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    • pp.288-293
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    • 2008
  • The standard prestressed concrete I-girder bridge (PSC I-girder bridge) is one of the most prevalent types for small and medium bridges in Korea. When determining the member forces in a section to assess the safety of girder in this type of bridge, the general practice is to use the simplified practical equations or the live load distribution factors proposed in design standards rather than the precise analysis through the finite element method or so. Meanwhile, the live load distribution factors currently used in Korean design practice are just a reflection of overseas research results or design standards without alterations. Therefore, it is necessary to develop an equation of the live load distribution factors fit for the design conditions of Korea, considering the standardized section of standard PSC I-girder bridges and the design strength of concrete. In this study, to develop an equation of the live load distribution factors, a parametric analysis and sensitivity analysis were carried out on the parameters such as width of bridge, span length, girder spacing, width of traffic lane, etc. Then, an equation of live load distribution factors was developed through the multiple linear regression analysis on the results of parametric analysis. When the actual practice engineers design a bridge with the equation of live load distribution factors developed here, they will determine the design of member forces ensuring the appropriate safety rate more easily. Moreover, in the preliminary design, this model is expected to save much time for the repetitive design to improve the structural efficiency of PSC I-girder bridges.

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철도분야 매입말뚝 설계기준 및 적용 현황 (Design criteria and Case History of Korean Railway for Auger-drilled Pilling)

  • 이수형;최정환;황선근;엄기영
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2008년도 추계 학술발표회
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    • pp.541-548
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    • 2008
  • Active application of auger-drilled piling is expected in Korea considering its advantage in noise and vibration problems against driven piling and its cost-effectiveness in comparison to the cast in-situ piling. The current design practice being used in Korea is adopted from the Japanese one, however the equipment and construction procedure is modified for the geotechnical conditions and construction circumstances in Korea. Therefore there is an urgent need for the establishment of the rational design criteria for the auger-drilled piling in Korea. As the preliminary work for the establishment, this paper presents the current practice in Korean railway constructions. Design criteria of Korea Railway Network Authority are introduced and its characteristics and the problems are described. Application cases of auger-drilled pile to railway construction are introduced as well.

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Stability limit state design of box sections supporting mining and process facilities

  • Bedair, Osama
    • Structural Engineering and Mechanics
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    • 제39권5호
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    • pp.643-659
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    • 2011
  • The design of box girders requires the determinations the buckling stress of the flange and the webs. Existing design equations available in codes of practice ignore the interactions between the box girder components. The paper illustrates the influence of the geometric interaction on the buckling stress of box girders. Generalized equations are first derived in terms of the web the flange geometric properties. Industrial examples are then presented showing the variation of the flange buckling stress for various stiffening configurations. The influence of the flange/web proportions on the buckling stress of box girder components is also highlighted. It is shown that buckling strength of the flange is largely affected by the restraints imposed by the webs or attached diaphragms. Graphs are presented showing various limiting states of box girders. These graphs are useful to use in practice in order to achieve economical and efficient design of box girders and rationally predict local buckling stress.

Study of a Three-Dimensional and Multi-Functional Urban High-Rise Complex in the High-Density Environment: Design Practice of Yiwu World Trade Center

  • Li, Linxue;Hou, Miaomiao;Zhang, Qi
    • 국제초고층학회논문집
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    • 제8권1호
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    • pp.37-47
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    • 2019
  • Facing the challenges of urban form and space quality in a high-density environment, the paper puts forward the development trend of three-dimensional and multi-functional design for an urban high-rise complex, and analyzes the design methods of establishing an urban landmark, including multi-functional composition, three-dimensional space integration, three-dimensional traffic organization and energy flow programming. Meanwhile, combined with the specific design case of Yiwu World Trade Center, the practical experience of designing a high-rise complex in China's medium-sized cities is analyzed.

병동간호업무 전산화를 위한 데이터베이스구축;간호업무기록지를 중심으로 (Database Design in Ward Nursing Information System)

  • 나지영
    • 간호행정학회지
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    • 제2권1호
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    • pp.73-96
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    • 1996
  • In the complexity and diversity of modern society, there is an urgent need for an information system which can systematically collect, manage and analyze data. Especially in the discipline of nursing, a nursing informarion system is necessary to maximize nursing resources and improve nursing care in the present system which is faced with increases in client needs and multiple changes in hospital environments. This research was done to provide a basis for the development of an integrative nursing information system for the future, by designing dababases items which were extracted from an analysis of the ward nursing information system on general wards excluding the OPD, ICU, OR and CSR with functions using a different system from the wards, and the design of output screen used the database items. The ward nursing information system was analysed through analysis of nursing practice related to recordings, such as the worksheet, kardex, and other nursing practice recordings, on 25 wards. The development of the database was the part of the construction of hospital information system and used the database development life cycle which is related to the system development life cycle. The database development steps included selection of database management system and design of a physical database following the principles of the order communication system which is been developing at Y University Hospital. Conceptual database and Logical database were designed using the base of 25 data items and fields derived from analysing the worksheet, the data items and fields derived from the kardex and other nursing practice recording, from these 19 data base tables were framed through transforming the relational database. Through this process, four types of output material for nursing practice recording which nurses can carry and use during their nursing practice were produced.

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간호학생의 간호이미지와 임상실습만족도 (Nursing Students' Image of Nurse and Satisfaction with Clinical Practice)

  • 이순희;김숙영;김정아
    • 간호행정학회지
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    • 제10권2호
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    • pp.219-231
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    • 2004
  • Purpose: This study was designed to identify the relationship between image of nursing and satisfaction with clinical practice of nursing students Method: A descriptive research design that examined relationship between image of nurse and satisfaction with clinical practice of nursing students was used for this study, All 350 subjects were obtained by convenience sampling from three nursing diploma programs. The data were collected using an self-reporting questionnaire from May 1st to 31st, 2003. Collected data were analysed on SPSS Win 11.0. Result: There is a significant relationship between image of nurse and satisfaction with clinical practice of nursing student. Classical image of nurse, older age, and satisfaction with nursing of nursing students were identified as the factors that influence significantly on their satisfaction with clinical practice. Conclusions: Nursing student is given a chance to prepare themselves be a nurse through well-structured clinical nursing practice. Therefore, it's important to enhance nursing students' image of nurse and satisfaction with nursing in order to enhance their satisfaction with clinical practice.

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중소병원 간호사 이직의도 영향 요인 (Factors Influencing Turnover Intention of Nurses in Small-medium sized Hospitals)

  • 강기노
    • 간호행정학회지
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    • 제18권2호
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    • pp.155-165
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    • 2012
  • Purpose: This study was done to examine the relationships among practice environment, nursing professionalism, career commitment, and turnover intention in nurses working in small-medium sized hospitals. Method: This study utilized a descriptive correlational design. Data were collected using structured questionnaires from 362 nurses in 7 small-medium sized hospitals and analyzed with SPSS 18.0. Result: The mean scores for practice environment, nursing professionalism, career commitment, and turnover intention were 2.29 on a 4-point scale and 3.13, 2.78, 3.51 on a 5-point scale, respectively. The practice environment showed significantly positive correlations with nursing professionalism and career commitment. Nursing professionalism showed a significantly positive correlation with career commitment. The highest significant negative correlation was between practice environment and turnover intention. Nursing professionalism and career commitment had negative correlations with turnover intention. Factors having significant influence on turnover intention included age, assigned ward, average wage, practice environment, and career commitment. These factors explained 43.0% of variance in turnover intention. Practice environment was identified as the most important variable in explaining turnover intention. Conclusions: The results of this study demonstrate the necessity of improving the practice environment and increasing nurses' career commitment if turnover intention in small-medium sized hospitals is to be lowered.

간호대학생의 임상실습 스트레스와 공감역량의 관계: 간호전문직관의 매개효과 (Relationship between the Stress of Clinical Practice and Compassion Competence in Nursing Students: The Mediating Effect of Nursing Professionalism)

  • 전원희
    • 가정간호학회지
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    • 제27권2호
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    • pp.169-178
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    • 2020
  • Purpose: This study examined the mediating effects of nursing professionalism on the relationship between the stress of clinical practice and compassion competence in nursing students. Methods: A correlational research design was used in this study. The participants were 120 nursing students recruited from three universities in South Korea. Data were collected using the self-reporting scales of stress of clinical practice, nursing professionalism, and compassion competence. Baron and Kenny's regression method and the Sobel test were used to analyze the mediating effects of nursing professionalism on the association between the stress of clinical practice and compassion competence. Results: The mean score for compassion competence was above average. Of the compassion competence domains, sensitivity and insights had the highest and lowest scores, respectively; there were significant mean differences in compassion competence scores according to their grade and level of satisfaction with nursing major. Compassion competence correlated negatively with the stress of clinical practice, whereas it correlated positively with nursing professionalism. In addition, nursing professionalism exerted full mediating effects on the relationship between the stress of clinical practice and compassion competence. Conclusion: The results suggested that enhancing nursing professionalism could help promote compassion competence among nursing students who experience stress in clinical practice.

간호대학생의 임상실습스트레스와 소진과의 관계에서 공감의 매개효과 (Clinical Practice Stress and Burnout in Nursing Students: The Mediating Effect of Empathy)

  • 송영숙
    • 한국간호교육학회지
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    • 제24권4호
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    • pp.406-414
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    • 2018
  • Purpose: The purpose of this paper was to examine the relationships between clinical practice stress and burnout, and the mediating role of empathy in nursing students. Methods: A cross-sectional research design was employed. One hundred seventeen nursing students completed questionnaires on clinical practice stress, empathy (perspective-taking, fantasy, empathic concern and personal distress) and burnout in December 2017. IBM SPSS Statistics 23 was used and descriptive statistics, frequency, Pearson correlation coefficient and multiple regression were conducted. Baron & Kenny method and Sobel test were adopted for analysis of the mediation effect (personal distress of empathy). Results: The mean scores of clinical practice stress and burnout were 3.45 and 43.09, and perspective-taking, fantasy, empathic concern and personal distress of empathy were 2.67, 2.42, 2.64 and 2.19, respectively. The highest relationship between clinical practice stress and empathy was personal distress of empathy (r=.32, p<.001). Burnout was positively associated with clinical practice stress and personal distress of empathy (r=.22, p=.015; r=.51, p<.001). Personal distress of empathy demonstrated a complete mediating effect on the relationship between clinical practice stress and burnout (Z=3.22, p=.001). Conclusion: These results showed that decreasing personal distress of empathy is important for nursing students, and may help in reducing clinical practice stress and burnout.

Influence of Physical Therapist and Work Environment on Evidence-Based Practice in South Korea

  • Shin, Kyung-Mi;Song, Chang-Ho
    • Physical Therapy Rehabilitation Science
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    • 제11권2호
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    • pp.224-234
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    • 2022
  • Objective: The purpose of this study was to identify the practitioner and organizational characteristics that either detracted from or encouraged the use of evidence-based practice (EBP) by physical therapists. Design: A cross-sectional survey study Methods: Participants were 260 physical therapists currently practicing in South Korea. They completed a questionnaire designed to determine attitudes, beliefs, interest, self-efficacy and barriers to EBP, as well as demographic information about themselves and their practice settings. Logistic regression was used to examine relationships between socio-demographic and work environment characteristics and each practitioner factor. Results: Respondents agreed that the use of evidence in practice was necessary. Although 80% of them agreed that research findings are useful, 71% felt that a divide exists between research and practice. In terms of confidence in their skills, the ability to interpret results of statistical procedures ranked lowest. Despite internet access at work for 63% of respondents, only 14% were given protected work time to search and appraise the literature. Only 2% of respondents stated that their organization had a written requirement to use current evidence in their practice. The primary barrier to implementing EBP was a reported lack of time. Conclusions: In conclusion, most physical therapists stated they had a positive attitude toward EBP and were interested in learning or improving the skills necessary for implementation. Most recognized a need to increase the use of evidence in their daily practice, but a lack of ability to understand the results of research represents a significant barrier to implementing EBP.