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Analysis of the Flow Field of Carrier-Based Aircraft Exhaust Jets Impact on the Flight Deck

  • Yue, Kuizhi;Sun, Yicheng;Liu, Hu;Guo, Weigang
    • International Journal of Aeronautical and Space Sciences
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    • v.16 no.1
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    • pp.1-7
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    • 2015
  • In order to provide some references for suitability of carrier-based aircrafts, this paper studies the flow field of exhaust jets and its impact on the flight deck. The geometrical models of aircraft carrier and carrier-based aircrafts are firstly built, on which unstructured tetrahedral meshes are generated for numerical analysis. Then, this paper simulates the flow field of exhaust jets to evaluate its impact on the Jet Blast Deflector (JBD) and the flight deck, when four carrier-based aircrafts are ready to start off in the bow. The standard k-${\varepsilon}$ equations, three-dimension N-S equations and the Computational Fluid Dynamics (CFD) theory are used in the analysis process. To solve the equations, the thermal coupling of the wind and the jet flow are also considered. The velocity and temperature distributions are provided with the simulation of the CFD software, FLUENT. The results indicate that: (1) this analytical method can be used to simulate aerodynamic problems with complex geometrical models, and the results are of high reliability; (2) the safety working area, the installation scheme of the JBD and the arrangement of the take-off position can be optimized through analysis.

The effects of Social Intelligence and Burnout on Turnover Intention in Nurses : An exploratory study (임상간호사의 이직의도에 미치는 업무소진과 사회지능의 탐색 연구)

  • Park, Hae-In;Lee, Kyunghee
    • Journal of Digital Convergence
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    • v.14 no.4
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    • pp.325-336
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    • 2016
  • This study was aimed to identify the effects of social intelligence and burnout on the turnover intention in nurses as a descriptive study. The data were collected between August 3 and September 1, 2015. A total of 188 nurses working at university medical centers and general hospitals located at J city and D city were participated. The collected data were analyzed using frequency, mean and standard deviation, t-test, ANOVAs, Pearson's correlation coefficients and hierarchical regression analysis. In turnover intention, there were significant differences in education, age, job preference of nurse, work period and position. Burnout showed significant effect in social intelligence and turnover intention. Social intlligence did not have control effect between turnover intention and job burnout. This findings suggested that to prevent the nurse's turnover intention, the education for social information, social skill and social awareness has to be programmed for the development of social intelligence.

A Virtual 3D Interface System for the Remote Control of Robot Agent (로봇 에이전트의 원격 제어를 위한 가상 3D 인터페이스 시스템)

  • 안현식
    • Journal of the Institute of Convergence Signal Processing
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    • v.2 no.4
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    • pp.85-90
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    • 2001
  • Recently there are lots of concerning on robot agent system working for itself with the trends of the research of bio-mimetic system and intelligent Therefore it is necessary to develop more humanized interface system from communicating with the robot agent. In this paper a virtual 3D interface system is proposed based on Internet for remote controlling and monitoring of robot agent. The proposed system is constructed as manager-agent model and a man can order a job at the 3D virtual interface environment of the manager located remotely Then the robot agent detects a 3D profile data from a range finder automatically and the robot moves the object to the new position in real space. The proposed system supports a advanced interface displaying virtual 3D graphics and real moving images and which makes it possible one to manage the robot agent more conveniently.

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과학영재학교 우수교원 확보를 위한 영재교육 관련 법 개선 방안

  • 김종득;문경근;정병훈;박은영
    • Journal of Gifted/Talented Education
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    • v.14 no.2
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    • pp.101-129
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    • 2004
  • It is very essential to recruit professional teachers for Gifted Education because the main goals of this school are focusing on the highly advanced technical science fields, enhancing self study and research environment which leads to develop self-directed learning and creative learning. The purpose of this study is to improve of the current Gifted Education Action Law For Teacher Recruitment in Gifted Education. The results of this study are follows; 1. Establishment of Standards for Teachers' Qualification in Gifted Education To recruit professional teachers, they are studied to use the current Gifted Education Action Law and to converse the legal position of Busan Science Academy 2. Developing Professionalism and Improving Conditions of Employment To gualify for Gifted Education, it is necessary to developing professionalism and improving conditions of employment. To provide long-term training and a sabbatical year for research. To make able teachers teach in a school longer than other teachers if teachers agree to it. To pay research funds for teachers for gifted education. To give advantage for gifted teachers in promotion. As the result of study, it has been systemized the standards of recruiting qualified teachers of the Science School for Gifted, has been proposed the ways of developing specialty of teachers and working conditions.

Comparison of Job Performance, Job Satisfaction and Job Stress of Child Health Nurse Practitioners by Roles in the Work Place (국내 아동전문간호사의 근무지 역할에 따른 직무수행과 직무만족도 및 직무스트레스 비교)

  • Lee, Hyejung;Huh, Eunjoo;Kim, Sanghee;Kim, Kieun;Seo, Minjeong
    • Child Health Nursing Research
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    • v.21 no.3
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    • pp.253-260
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    • 2015
  • Purpose: Child Health nurse practitioners (CHNPs) in Korea have important roles in disease management and health promotion for children and adolescents. Yet, practices of CHNPs licensed and employed in hospitals have not been adequately identified. Thus, in this study the scope of practice by CHNPs and job satisfaction and stress were investigated and compared according to the CHNPs' position in the working place. Methods: A descriptive cross-sectional survey design was used. All 53 licensed CHNPs participated in the mail survey which included a 71-item questionnaire on job performance and job satisfaction and a job contents questionnaire. Descriptive statistics, ${\chi}^2$ test, independent t-test and Mann-Whitney U test were used to compare CHNPs employed as nurse practitioner (NP) and CHNPs employed as staff nurses. Results: Compared to CHNPs employed as staff nurses, CHNPs employed as NPs more frequently provided education, environment management, coordination and research in their practice areas. No significant difference was found in job satisfaction between the two groups except for the administration and income subdomains. Only the physical exertion subdomain in job stress was stressful to CHNP employed as staff nurse. Conclusions: Job performance of CHNPs in Korea needs to be revised to include more practical practice in education, coordination, and research related areas.

The Structure relationship between ski resort employee's ethical management, organizational identification and customer orientation (스키리조트 종사자가 지각하는 윤리경영과 조직동일시 및 고객지향성의 구조적 관계)

  • Song, Hong-Rak;Ryu, Won-Yong
    • Journal of Digital Convergence
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    • v.15 no.1
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    • pp.583-591
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    • 2017
  • The purpose of this study was empirically to reveal the structure relationship between ethical management of ski resort employee, organizational identification and customer orientation. For the research, survey of 200 people working in domestic ski resorts was conducted. The survey was composed of three variables(ethical management, organizational identification and customer orientation). The following results were obtained by confirmatory analysis, reliability analysis, correlation analysis and structural equation model analysis. First, ski resort employee's ethical management had a positive correlation with organizational identification. Second, ski resort employee's ethical management had a positive correlation with customer orientation. Third, ski resort employee's organizational identification had a positive correlation with customer orientation. This study suggested that the ethical management of ski resorts had positive effects on the attitudes and behaviors of the employees who regarded the organization as a common fate and provided high quality service considering the customer's position.

Nursing Interventions of the Lupus Patient (루푸스(Lupus) 환자의 간호중재)

  • Kim, Myung-Ja;Sohng, Kyeong-Yae
    • Journal of muscle and joint health
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    • v.2 no.2
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    • pp.197-208
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    • 1995
  • The purpose of this study is to describe specific system manifestations and suggested nursing interventions in patients with lupus. Lupus is a chronic, inflammatory, multisystemic disorder of the immune system. Antibodies are formed which react against the person's own normal tissue. This abnormal response can be very damaging and leads to the many manifestations of the lupus. Lupus can affect any part of the body, and patients experience symptoms in organs involved. So lupus patients have integumentary, blood, central nervous system, eye, gastrointestinal, musculoskeletal, kidney, heart and lining membranes, reproductive system involvement. The courses are unpredictable and very individualized. Lupus varies greatly in severity from mild cases requiring minimal interventions to those in which significant damage occurs to vital organs such as the lungs, heart, kidney and brain which ultimately can be fatal. In addition to direct physical care, the nursing professional has an excellent position from which to support the lupus patient. Patients need assistance with receiving current, accurate information about the disease process and also to be helped in developing realistic expectations and goals. Nursing interventions for the patient with lupus is challenge drawing on at the resources, knowledge and strengths the nursing teams have to offer. Because of the unpredictable, highly individualized and frequently changing the nature of the disease itself as well as the intricacy of the patient's needs. The nurse has a key role in its management. The patient and nurse, working together, have much to offer each other. These are of inestimable value to the patient. As the nurse listens to the patient and learns what problems the patient perceives, can guide the patient in a self-help program that allows to adapt to living with a chronic illness.

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The Effects of Segmental Instability and Muscle Fatigue after Stabilization Exercise Program in Degenerated Disc Disease Patients of Aged (노인 퇴행성디스크 환자의 안정화운동이 척추불안정과 피로도에 미치는 영향)

  • Kim, Hee-Ra
    • Journal of Korean Physical Therapy Science
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    • v.13 no.4
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    • pp.7-16
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    • 2006
  • The purpose of this study was designed to find out the effectiveness of vertebral segment instability, muscle fatigue response on lumbar spine after apply lumbosacral stabilization exercise program to 4 patients with chronic low back pain and for 12 weeks. In this study, the lumbar spine motion with blind by MedX test machine and the difference of instability to lumbar vertebra segments in flexion, extension test of standing position and spinal load test(Matthiass Test) by Spinal Mouse. The stabilization exercise program was applied 2 times a week for 12 weeks in hospital and 2 times a day for 20 minutes at home. The results of the present study were as follows: 1. Instability test of lumbar vertebra segment is 2 type differential angle test between vertebrae segment and loading test of spine(matthiass) by Spinal Mouse. It appeared to improve stability of segments in sagittal plane after program. So lumbar spine curve increased lordosis toward anterior and was improved of the lumbar spine flexibility in flexion and extension. Specially, in matthiass test, ( - ) value was increased between lumbar vertebra segment when was the load on spine. And so stability improved after program. 2. Fatigue response test(FRT) results, in male, was raised muscle fatigue rate during increase weight, on the other hand female appeared lower than male. As a results, lumbosacral stabilization exercise was aided to improvement of lumbar spine vertebra segments stabilization. Spine instability patients will have a risk when in lifting a load or working with slight flexion posture during the daily of living life and it is probably to increase recurrence rate. Thus, not only lumbar extension muscle strength but also stability of vertebra segments in lumbar spine may be very important.

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Effects of Clinical Nurses' Self-leadership and Nursing Organizational Culture on Nursing Performance (임상간호사의 셀프리더십과 간호조직문화가 간호업무성과에 미치는 영향)

  • Choi, In Young;Park, Nam Hee;Jeong, Ji Hye
    • The Journal of the Korea Contents Association
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    • v.19 no.12
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    • pp.502-516
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    • 2019
  • The objectives of this study were to understand the relationship between the self-leadership of clinical nurses, nursing organizational culture and nursing performance and identify factors influencing nursing performance. Data were collected from 242 nurses working at H hospital in A Metropolitan City. Data were gatherd collected from Oct 17 to Oct 23, 2016, and analyzed using SPSS 21.0 program. The analysis results showed that several demographic characteristics (i.e., age, marital status, educational level, position, clinical experience and clinical experience in the current department) significantly affected nursing performance. The results of hierarchical multiple regression analysis revealed that clinical experience in the current department and self-expectation are influencing factors in nursing performance and they explained 35.7% of the variance. In order to improve nursing performance, it is necessary to maintain the clinical experience in the current department and develop education programs for enhancing self-expectation of nurses.

Resilience and Organizational Socialization in New Nurses (신규간호사의 회복탄력성과 조직사회화)

  • Park, So Yeonn;Kwon, Yunhee;Park, Yeong Sook
    • The Journal of the Korea Contents Association
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    • v.15 no.2
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    • pp.324-332
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    • 2015
  • The purpose of this study was to identify the relationship between resilience and organizational socialization in new nurses. Data collection for the study was carried out between September 28th and December 30th, 2012 by surveying 221 new nurses working in general hospitals located in D, K, and P city. Measures were subjects' resiliency and organizational socialization. The data were analyzed using t-test, ANOVA, Person's correlation coefficients and multiple regression analysis with SPSS/WIN 19.0 version. The average of subject's resilience was 3.37(${\pm}0.62$) and organizational socialization 3.20(${\pm}0.70$). There were significant differences in organizational socialization according to age, number of hospital beds, pay grade, desired position and clinical training experiences of hospital. Resilience correlated positively with organizational socialization. Factors affecting new nurses organizational socialization were identified in the order of resilience, clinical training experiences of hospital, age and pay grade. The findings of the study indicate that in order to increase new nurses' organizational socialization, their resilience have to be enhanced.