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  • SAGE Publications  (8)
  • 2015-2019  (8)
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  • SAGE Publications  (8)
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  • 2015-2019  (8)
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  • 1
    Online Resource
    Online Resource
    Analysis on technology and defects of fracture splitting of automobile engine connecting rod
    SAGE Publications ; 2015
    In:  Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture Vol. 229, No. 9 ( 2015-09), p. 1603-1613
    Details
    In: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, SAGE Publications, Vol. 229, No. 9 ( 2015-09), p. 1603-1613
    Abstract: The principle of connecting rod (con-rod) fracture splitting was analyzed, and the microscopic morphology of fracture surface was observed using scanning electron microscope. Crack initiation and propagation during the fracture splitting of con-rod process was numerically simulated. The effects of the bolt hole on the fracture splitting force and distribution of stress and strain were investigated. Typical location of fracture splitting defects and why they were generated were analyzed, and methods were proposed to avoid them. The results show that the nature of con-rod fracture splitting is a mode I quasi-brittle fracture, and the position of crack initiation can be found during the analysis process. Existence of the bolt hole is helpful to optimize fracture splitting technology and improve product quality, and the optimized range of bolt hole position was achieved based on simulation result. Moreover, defects such as steps, break-outs, usually occur between the bolt hole wall and outer edge of the con-rod big end in that two cracks converged and propagation velocity was slow in this region. The fracture splitting defects can be reduced or avoided when the outer shape of the fracture surface is a circular arc.
    Type of Medium: Online Resource
    ISSN: 0954-4054 , 2041-2975
    URL: Article
    DOI: 10.1177/0954405414539493
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2015
    detail.hit.zdb_id: 2032745-6
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  • 2
    Online Resource
    Online Resource
    Protective effect of astaxanthin on acute cerebral infarction in rats
    SAGE Publications ; 2018
    In:  Human & Experimental Toxicology Vol. 37, No. 9 ( 2018-09), p. 929-936
    Details
    In: Human & Experimental Toxicology, SAGE Publications, Vol. 37, No. 9 ( 2018-09), p. 929-936
    Abstract: The aim of the study was to investigate the effect of astaxanthin and its possible mechanisms on acute cerebral infarction (ACI) in rat model. Male Sprague Dawley rats were randomly divided into sham group, model group, and astaxanthin-treated groups (20, 40, and 80 mg/kg). Neurological examination, the ratio of cerebral edema, and histopathology changes were assessed. Moreover, some oxidative stress markers were obtained for biochemical analysis, and the expression of neurotrophic factors gene was detected by real-time polymerase chain reaction (RT-PCR) method. The results showed that treatment with astaxanthin notably reduced neurological deficit scores and the ratio of cerebral edema compared with the model group. Meanwhile, astaxanthin increased the activity of catalase, superoxide dismutase, and glutathioneperoxidase as well as decreased the content of malondialdehyde in brain tissue. RT-PCR results showed that the expression of brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) mRNA were increased with astaxanthin treatment. The results indicated that astaxanthin could ameliorate ACI followed by suppressing oxidative stress and upregulating the expression of BDNF and NGF mRNA.
    Type of Medium: Online Resource
    ISSN: 0960-3271 , 1477-0903
    URL: Article
    DOI: 10.1177/0960327117745693
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
    detail.hit.zdb_id: 1483723-7
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  • 3
    Online Resource
    Online Resource
    An experimental driving simulator study of unintentional lane departure
    SAGE Publications ; 2017
    In:  Advances in Mechanical Engineering Vol. 9, No. 10 ( 2017-10), p. 168781401772629-
    Details
    In: Advances in Mechanical Engineering, SAGE Publications, Vol. 9, No. 10 ( 2017-10), p. 168781401772629-
    Type of Medium: Online Resource
    ISSN: 1687-8140 , 1687-8140
    URL: Article
    DOI: 10.1177/1687814017726290
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2017
    detail.hit.zdb_id: 2501620-9
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  • 4
    Online Resource
    Online Resource
    Human-centered headway control for adaptive cruise-controlled vehicles
    SAGE Publications ; 2015
    In:  Advances in Mechanical Engineering Vol. 7, No. 11 ( 2015-11-01), p. 168781401561504-
    Details
    In: Advances in Mechanical Engineering, SAGE Publications, Vol. 7, No. 11 ( 2015-11-01), p. 168781401561504-
    Abstract: Driving characteristics of human drivers, such as driving safety, comfort, handiness, and efficiency, which are interrelated and contradictory, are synthetically considered to maintain a safe inter-vehicle distance in this article. For the multi-objective coordination control problem, the safety, handiness, comfort, and efficiency indicators are established via driving states and manipulated variable. Furthermore, a multi-performance indicator coordination mechanism is proposed via the invariant set and quadratic boundedness theory. A headway control algorithm for adaptive cruise control is established under the dynamic output feedback control framework. Finally, feasibility and effectiveness of the proposed algorithm are verified via closed-loop simulations under the following, cut-out, and cut-in typical operating conditions.
    Type of Medium: Online Resource
    ISSN: 1687-8140 , 1687-8140
    URL: Article
    DOI: 10.1177/1687814015615042
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2015
    detail.hit.zdb_id: 2501620-9
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  • 5
    Online Resource
    Online Resource
    An Improved General Motor Car-Following Model considering the Lateral Impact
    SAGE Publications ; 2015
    In:  Advances in Mechanical Engineering Vol. 7, No. 2 ( 2015-01), p. 894589-
    Details
    In: Advances in Mechanical Engineering, SAGE Publications, Vol. 7, No. 2 ( 2015-01), p. 894589-
    Abstract: We improve the typical GM car-following model. In order to describe the impacts of the lateral offset between the vehicles in car-following state, this paper proposes time distance to measure the drivers' attention of driving environment and uses generalized expectation headway to describe the ideal driving state of the driver. Take the difference between the actual and expected headway as the important standard for driver to decide whether to speed up or slow down. Then take the drivers' attentions and the expected headway as the decision-making factors, and consider them while revising the GM car-following model. The numerical simulation shows the improved GM model conforms to the general driving behavior, enhances the function of the typical model, and strengthens the model stability.
    Type of Medium: Online Resource
    ISSN: 1687-8140 , 1687-8140
    URL: Article
    DOI: 10.1155/2014/894589
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2015
    detail.hit.zdb_id: 2501620-9
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  • 6
    Online Resource
    Online Resource
    Time-course of attentional bias for culture-related cues in Mongolian-Chinese bilingual children
    SAGE Publications ; 2019
    In:  International Journal of Bilingualism Vol. 23, No. 6 ( 2019-12), p. 1483-1501
    Details
    In: International Journal of Bilingualism, SAGE Publications, Vol. 23, No. 6 ( 2019-12), p. 1483-1501
    Abstract: Using a modified dot-probe task, the present research examined the time-course of attentional bias for culture-related cues in Mongolian-Chinese bilinguals. Design/methodology/approach: Using a mixed experimental design, children with different language fluency (fluent bilingual, limited bilingual and mandarin monolingual) were recruited ( N = 168; 51% boys; M age = 9.88 years, SD = 0.38 years; 59% Mongolian) to complete a dot-probe task in which they were shown pairs of pictures representing Mongolian and Han culture for short (60 ms) and long (500 ms) exposure durations. The difference between fluent and limited bilinguals lies in their proficiency in Mongolian. Data and analysis: The attentional bias scores ( d) were entered into a 2 × 3 mixed design repeated-measures analysis of variance with language fluency (fluent bilingual versus limited bilingual versus monolingual) as a between-subjects variable and the time-course (60 versus 500 ms) as a within-subject variable. Findings/conclusions: In the task, compared with pictures representing Han culture, all students showed preferential attention to pictures conveying Mongolian culture across presentation durations. However, for 60 ms, fluent bilinguals showed a smaller attentional bias than did monolinguals, with no difference between limited bilinguals and monolinguals; there was no significant difference among the three groups at 500 ms. Originality: Relatively less research has been performed on comparative analysis between fluent and non-fluent bilinguals, and most of the culture-related content is measured by subjective methods. This study attempts to directly compare these two bilinguals’ attentional bias for culture-related cues using a dot-probe task. Significance/implications: The results of comparative analysis showed that fluent bilinguals were more familiar with Mongolian language and preserved their ethnic culture better, which may indicate a close relationship between language and culture.
    Type of Medium: Online Resource
    ISSN: 1367-0069 , 1756-6878
    URL: Article
    DOI: 10.1177/1367006918808047
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2029695-2
    SSG: 7,11
    SSG: 5,3
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  • 7
    Online Resource
    Online Resource
    Pedestrian count estimation using texture feature with spatial distribution
    SAGE Publications ; 2017
    In:  Advances in Mechanical Engineering Vol. 9, No. 1 ( 2017-01), p. 168781401668359-
    Details
    In: Advances in Mechanical Engineering, SAGE Publications, Vol. 9, No. 1 ( 2017-01), p. 168781401668359-
    Abstract: We present a novel pedestrian count estimation approach based on global image descriptors formed from multi-scale texture features that considers spatial distribution. For regions of interest, local texture features are represented based on histograms of multi-scale block local binary pattern, which jointly constitute the feature vector of the whole image. Therefore, to achieve an effective estimation of pedestrian count, principal component analysis is used to reduce the dimension of the global representation features, and a fitting model between image global features and pedestrian count is constructed via support vector regression. The experimental result shows that the proposed method exhibits high accuracy on pedestrian count estimation and can be applied well in the real world.
    Type of Medium: Online Resource
    ISSN: 1687-8140 , 1687-8140
    URL: Article
    DOI: 10.1177/1687814016683599
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2017
    detail.hit.zdb_id: 2501620-9
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  • 8
    Online Resource
    Online Resource
    Assessing Impulsivity in Chinese: Elaborating Validity of BIS Among Male Prisoners
    SAGE Publications ; 2019
    In:  Criminal Justice and Behavior Vol. 46, No. 3 ( 2019-03), p. 492-506
    Details
    In: Criminal Justice and Behavior, SAGE Publications, Vol. 46, No. 3 ( 2019-03), p. 492-506
    Abstract: This study was carried out to test the factor structure and psychometric properties of the Barratt Impulsiveness Scale–Version 11 (BIS-11), and its short versions (the eight-item and 15-item BIS) in a sample of 424 Chinese male prisoners ( M = 31.26, SD = 7.43, age = 18-52 years). Confirmatory factor analysis (CFAs) indicated that the single-factor model of BIS with eight items (BIS-8) and the three-factor model of BIS with 15 items (BIS-15) fit the data well. In addition, the item response theory (IRT) approach confirmed the construct and items for the BIS-8 with good discrimination, threshold parameters, and test information curve. Correlations with psychopathic traits, antisocial personality disorder, and aggression suggested that the performance of the eight-item BIS was comparable with that of the original 30-item BIS in measuring general impulsivity.
    Type of Medium: Online Resource
    ISSN: 0093-8548 , 1552-3594
    URL: Article
    DOI: 10.1177/0093854818806033
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 1500128-3
    SSG: 2
    SSG: 2,1
    SSG: 5,2
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