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  • 1
    In: Frontiers in Psychology, Frontiers Media SA, Vol. 12 ( 2021-6-23)
    Abstract: Purpose: This study used a moderated mediation model to explore the relationship between general self-efficacy (GSE) and psychological resilience (PR) and the associated mechanisms, the mediating role of posttraumatic growth (PTG), and the moderating role of deliberate rumination (DR) during the coronavirus disease 2019 (COVID-19) pandemic. Knowledge of the relationship between these four variables examined further understanding of the PR improvement mechanism of college students and even the general public. Methods: The college students who participated in this study came from an independent college in Guangdong Province, China. A total of 918 college students completed the survey, and the final data sample size was 881. SPSS 23.0 and PROCESS (version 3.3) were used to conduct Pearson's correlation analysis and hierarchical regression linear analysis on the data. Results: (1) The correlation analysis showed that GSE and PR were positively correlated and that PTG was positively correlated with GSE and PR. DR was positively correlated with GSE, PTG, and PR. (2) The results of mediation analysis showed that GSE had a direct predictive effect on DR, and PTG partially mediated the relationship between the two. (3) The results of moderating effect analysis showed that DR hindered the effect of GSE on PTG but enhanced the positive impact of PTG on PR. Conclusions: General self-efficacy can improve PR under the mediating influence of PTG. DR played a positive moderating role in the relationship between GSE and PTG, and played a negative moderating role in the relationship between PTG and PR. These results advance the understanding of the mechanism between GSE and PR.
    Type of Medium: Online Resource
    ISSN: 1664-1078
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2563826-9
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  • 2
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 1998
    In:  The Journal of the Acoustical Society of America Vol. 103, No. 5_Supplement ( 1998-05-01), p. 3014-3015
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 103, No. 5_Supplement ( 1998-05-01), p. 3014-3015
    Abstract: The study of nonlinear standing waves is of great significance to nonlinear acoustics. The strong nonlinear standing wave phenomena are constantly encountered in the experimental studies of acoustics, such as multiplying growth of higher harmonics, saturation of harmonics, bifurcation, and chaos. The experimental study of strong nonlinear standing waves is highly restricted by the sound source, which is very difficult to build up when its sound power becomes very strong. Therefore, in this paper, a numerical approach to the problem was adopted. By the use of Euler equations and MacCormack fourth-order difference method, the multiplying growth and saturation of higher harmonics in a nonlinear standing wave have been numerically simulated. By increasing the sound-pressure level of the excited source from 125 to 190 dB, the entire development process of the nonlinear standing wave was clearly illustrated. Some new interesting results were obtained from the simulation. For example, the sound-pressure level at zero frequency enlarges quickly with increasing the intensity of the excited source. A detailed comparison between numerical simulation and the relevant experimental results shows that the numerical investigation is successful. [Work supported by NSFC.]  
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1998
    detail.hit.zdb_id: 1461063-2
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  • 3
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2006
    In:  The Journal of the Acoustical Society of America Vol. 119, No. 5_Supplement ( 2006-05-01), p. 3412-3412
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 119, No. 5_Supplement ( 2006-05-01), p. 3412-3412
    Abstract: Numerical prediction of fan noise is very difficult work because of the restriction of the computer technology. The fluctuating blade force caused by the vortex shedding from a centrifugal impeller is a main noise source but no paper has been published so far to predict this kind of noise. Vortex flow models to predict low-pressure axial flow fans were developed by several researchers since 1964. In this paper a study of numerical prediction of vortex shedding noise radiated by a commercial centrifugal impeller is reported, which is based on a vortex flow model developed by Lee in 1993. Three main research works are carried out by the authors. First, using FLUENT software a numerical simulation of 3D turbulent flow field of the impeller in order to predict the aerodynamic performance is completed and well validated by the experiment. Then, the velocity profile near the wall at the trailing edge of the blade is analyzed in detail to determine the boundary layer thickness both on the pressure and suction sides. Finally, the total SPL of the noise is predicted and the results agree with the experimental data within 3 dB near the design operation.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2006
    detail.hit.zdb_id: 1461063-2
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  • 4
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 1999
    In:  The Journal of the Acoustical Society of America Vol. 106, No. 4_Supplement ( 1999-10-01), p. 2172-2172
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 106, No. 4_Supplement ( 1999-10-01), p. 2172-2172
    Abstract: The most important noise in centrifugal fans is aerodynamic noise, in which cutoff noise is the most main component. Cutoff noise is mainly caused by the fluctuating pressure on the cutoff in the volute impacted by the nonuniform flow from the exit of the rotating impeller. A numerical method is presented for prediction of cutoff noise in centrifugal fans. The contents of the method are mainly the following. (1) The fluctuating pressure serving as the source of cutoff noise is given out by using the existing computation software of 3D viscous flow in centrifugal fans and the time-frozen hypothesis. (2) The sound field in the volute of a centrifugal fan and the sound power levels of cutoff noise are computed by using the forth-order MacCormack scheme and making some important numerical measures. The sound field in the volute and the sound power levels of cutoff noise for three practical volutes with different cutoff clearance have been computed and the acoustic pressure distribution in space and change with time are discussed. Finally, the sound power levels of cutoff noise have been measured. The errors between the predicted and the tested sound power levels of cutoff noise are less than 3 dB. [Work supported by NSF.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1999
    detail.hit.zdb_id: 1461063-2
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  • 5
    In: Archives of Public Health, Springer Science and Business Media LLC, Vol. 80, No. 1 ( 2022-08-22)
    Abstract: The aim of the study was to use a moderated mediation model to understand and examine the relationship between negative emotions and creativity among college students during the COVID-19 pandemic, using psychological resilience as a mediator and posttraumatic growth as a moderator. Methods A sample of 881 college students in mainland China completed a self-report questionnaire that included four scales: the Depression-Anxiety-Stress Scale, Psychological Resilience Scale, Runco Ideational Behavior Scale and Posttraumatic Growth Inventory. Results Findings indicated that:(1) negative emotions were a strong predictor of creativity; (2) psychological resilience partially mediated the association between negative emotions and creativity; and (3) posttraumatic growth moderated the positive effect of psychological resilience, such that the indirect effect between negative emotions and creativity via psychological resilience was stronger for someone with a low level of resilience. Conclusion The findings further clarify the mechanisms that affect the relationship between negative emotions and creativity among college students.
    Type of Medium: Online Resource
    ISSN: 2049-3258
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 2133388-9
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  • 6
    Online Resource
    Online Resource
    Elsevier BV ; 2004
    In:  Building and Environment Vol. 39, No. 9 ( 2004-9), p. 1035-1042
    In: Building and Environment, Elsevier BV, Vol. 39, No. 9 ( 2004-9), p. 1035-1042
    Type of Medium: Online Resource
    ISSN: 0360-1323
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2004
    detail.hit.zdb_id: 1481962-4
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  • 7
    In: Frontiers in Psychology, Frontiers Media SA, Vol. 12 ( 2021-5-6)
    Abstract: Purpose: The pandemic of coronavirus disease 2019 (COVID-19), which has had a significant impact on people’s lives, has apparently increased the incidence of depression. Although the topic of how depression affects creativity is contested, previous research has revealed a significant relationship between the two. The purpose of this study is to further investigate the relationship and the mechanisms that operate between depression and creativity. Methods: A total of 881 students at an independent college in China completed a questionnaire consisting of the Self-Reported Depression Scale, Runco Ideational Behavior Scale, Psychological Resilience Scale, Deliberate Rumination Scale and demographic information. Among the respondents, 317 (36.0%) were male and 564 (64.0%) were female, all of whom were from the same grade. Correlation analyses were conducted, and then the researchers carried out mediation analysis and developed a moderated mediation model. Results: The results indicated that (a) depression was positively related to creativity ( r = 0.085, p & lt; 0.05); (b) psychological resilience mediated the relationship between depression and creativity; specifically, psychological resilience was negatively related to depression ( r = −0.462, p & lt; 0.01), which in turn was positively related to creativity ( r = 0.198, p & lt; 0.01); and (c) deliberate rumination moderated the relationship between depression and psychological resilience, showing a significant negative correlation with depression ( r = 0.138, p & lt; 0.01), psychological resilience ( r = 0.078, p & lt; 0.05), and creativity ( r = 0.288, p & lt; 0.05); specifically, higher levels of deliberate rumination strengthened the negative correlation between psychological resilience and depression. Conclusion: The results suggest that depression is a positive predictor of creativity and may promote creativity to some extent. Further, individuals with greater psychological resilience are more creative than those with less psychological resilience, as it is a question of whether they can and to what extent they can effectively use depression as an emotional resource. Last, an individual’s level of deliberate rumination moderates the mediating process, especially at the stage where depression is associated with psychological resilience. These findings advance understanding of the mechanisms that operate between depression and creativity.
    Type of Medium: Online Resource
    ISSN: 1664-1078
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2563826-9
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  • 8
    In: Frontiers in Psychology, Frontiers Media SA, Vol. 12 ( 2021-4-14)
    Abstract: Purpose: This study used a moderated mediation model to test the mediating effect of general self-efficacy on the relationship between post-traumatic growth (PTG) and creativity and the moderating effect of deliberate rumination in the second path of the indirect mediation path during the COVID-19 pandemic. Methods: A sample of 881 university students from Guangdong Province, China, was surveyed with the Posttraumatic Growth Inventory, the Runco Ideational Behavior Scale, the General Self-Efficacy Scale, and the Deliberate Rumination Inventory. SPSS (23 version) and PROCESS (3.3 version) were used for correlation analyses, mediation analysis, and moderated mediation analysis. Results: (1) PTG was positively correlated with creativity, self-efficacy, and deliberate rumination. Creativity was positively correlated with self-efficacy and deliberate rumination. Deliberate rumination was positively correlated with self-efficacy. (2) Self-efficacy mediated the relationship between PTG and creativity. (3) Deliberate rumination moderated the second half of the path of “PTG → self-efficacy → creativity.” Conclusions: PTG affected creativity directly and also indirectly through self-efficacy. In particular, deliberate rumination moderated the relationship between self-efficacy and creativity, such that the association was stronger when the incidence of deliberate rumination was low. These results provide a more comprehensive understanding of the positive link between PTG and creativity.
    Type of Medium: Online Resource
    ISSN: 1664-1078
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2563826-9
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  • 9
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2008
    In:  Frontiers of Energy and Power Engineering in China Vol. 2, No. 4 ( 2008-12), p. 443-447
    In: Frontiers of Energy and Power Engineering in China, Springer Science and Business Media LLC, Vol. 2, No. 4 ( 2008-12), p. 443-447
    Type of Medium: Online Resource
    ISSN: 1673-7393 , 1673-7504
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2008
    detail.hit.zdb_id: 2389481-7
    detail.hit.zdb_id: 2657153-5
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  • 10
    Online Resource
    Online Resource
    Elsevier BV ; 2004
    In:  Building and Environment Vol. 39, No. 1 ( 2004-1), p. 1-8
    In: Building and Environment, Elsevier BV, Vol. 39, No. 1 ( 2004-1), p. 1-8
    Type of Medium: Online Resource
    ISSN: 0360-1323
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2004
    detail.hit.zdb_id: 1481962-4
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