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  • SAGE Publications  (19)
  • 1
    Online Resource
    Online Resource
    Rank–size distribution and spatio-temporal dynamics of tourist flows to China’s cities
    SAGE Publications ; 2016
    In:  Tourism Economics Vol. 22, No. 3 ( 2016-06), p. 451-465
    Details
    In: Tourism Economics, SAGE Publications, Vol. 22, No. 3 ( 2016-06), p. 451-465
    Abstract: This article investigates the rank–size distribution and spatio-temporal dynamics of domestic and inbound tourist flows in Chinese cities using Zipf’s law and the rank clock method. The results show that Zipf’s law captures key characteristics of the rank–size distribution of tourist flows to China’s cities. There are large differences between the inbound and domestic tourist flows not only for the top 100 but also for all cities. Three types of Zipf’s law are found to apply to China’s subregions. At the individual city level, most rank changes of the top 100 inbound and domestic tourist arrival cities appear in the lower part of the rank. The average rank shift distances of the top 100 inbound and domestic tourist arrival cities are 6.122 and 6.006, respectively. The dynamics of the rank–size distribution of domestic tourist flows to the top 100 cities are more stable than those of inbound tourist flows.
    Type of Medium: Online Resource
    ISSN: 1354-8166 , 2044-0375
    URL: Article
    DOI: 10.5367/te.2014.0430
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2016
    detail.hit.zdb_id: 2026139-1
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  • 2
    Online Resource
    Online Resource
    Bargaining Power in Tourist Shopping
    SAGE Publications ; 2018
    In:  Journal of Travel Research Vol. 57, No. 7 ( 2018-09), p. 947-961
    Details
    In: Journal of Travel Research, SAGE Publications, Vol. 57, No. 7 ( 2018-09), p. 947-961
    Abstract: Bargaining behavior is popular when tourists shop, with bargaining power representing the surplus sellers or buyers obtain after price negotiations. This article applies a two-tier stochastic frontier analysis to estimate sellers’ and buyers’ (i.e., tourists’) surplus terms as a measure of their respective bargaining power. Using large-scale data on shopping behavior obtained from a domestic tourist survey conducted in Nanjing, China, between 2005 and 2010, our empirical results indicate that in general, tourists exhibit stronger bargaining power than sellers. Additionally, tourists’ net surplus, as a measure of relative bargaining power, is heavily informed by their tripographic and sociodemographic characteristics, with the former being more influential. In particular, tourists traveling with companions and obtaining travel information from friends and mass media tend to have stronger-than-average bargaining power.
    Type of Medium: Online Resource
    ISSN: 0047-2875 , 1552-6763
    URL: Article
    DOI: 10.1177/0047287517724917
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
    detail.hit.zdb_id: 2036634-6
    SSG: 14
    SSG: 3,2
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  • 3
    Online Resource
    Online Resource
    Bidirectional degeneration in the visual pathway in neuromyelitis optica spectrum disorder (NMOSD)
    SAGE Publications ; 2018
    In:  Multiple Sclerosis Journal Vol. 24, No. 12 ( 2018-10), p. 1585-1593
    Details
    In: Multiple Sclerosis Journal, SAGE Publications, Vol. 24, No. 12 ( 2018-10), p. 1585-1593
    Abstract: This study aims to investigate whether bidirectional degeneration occurs within the visual pathway and, if so, the extent of such changes in neuromyelitis optica spectrum disorder (NMOSD). Methods: In total, 36 NMOSD and 24 healthy controls (HCs) were enrolled. Three-dimensional T1-weighted magnetic resonance imaging (MRI) and diffusion tensor imaging were used to analyze damage to the posterior visual pathway. Damage to the anterior visual pathway was measured by optical coherence tomography. Results: In total, 24 NMOSD with prior optic neuritis (NMOON) patients showed significant reduction of peripapillary retinal nerve fiber layer, inner and outer retinal thickness, lateral geniculate nucleus volume, primary visual cortex volume, and decreased integrity of optic radiations, compared with 12 NMOSD without prior optic neuritis (NMONON) patients and 24 HCs. In NMONON, only the inner retinal thickness and the integrity of optic radiations were significantly reduced in comparison with HCs. Moreover, patients with optic neuritis showed severe bidirectional degeneration, the loss of the RNFL was greater than the atrophy of V1. Conclusion: Our study indicated the presence of trans-synaptic degeneration in NMOSD. Damage to the inner retina and optic radiations can be observed even in NMONON. After an episode of optic neuritis, the anterior visual pathway damage is greater than the posterior visual pathway damage.
    Type of Medium: Online Resource
    ISSN: 1352-4585 , 1477-0970
    URL: Article
    DOI: 10.1177/1352458517727604
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
    detail.hit.zdb_id: 2008225-3
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  • 4
    Online Resource
    Online Resource
    The use of pyrosequencing for detection of hemagglutinin mutations associated with increased pathogenicity of H5N1 avian influenza viruses in mammals
    SAGE Publications ; 2018
    In:  Journal of Veterinary Diagnostic Investigation Vol. 30, No. 4 ( 2018-07), p. 619-622
    Details
    In: Journal of Veterinary Diagnostic Investigation, SAGE Publications, Vol. 30, No. 4 ( 2018-07), p. 619-622
    Abstract: Hemagglutinin (HA) cleavage is critical for virulence of influenza viruses. The amino acid residue at the P6 position of the HA cleavage site (HACS) has been shown to be most variable and to have a direct correlation with the cleavage efficiency and pathogenicity of H5N1 avian influenza viruses (AIVs) in mammals. Among these amino acid variants, serine has been associated with the highest virulence in mammals, and its detection may serve as an indicator for H5N1 AIVs with high pathogenicity and potential public risk. We developed a rapid detection method based on reverse-transcription (RT)-PCR and pyrosequencing to detect a mutation at the HACS that is associated with increased pathogenicity of H5N1 AIVs in mammals. Herein, we provide a specific, sensitive, and reliable method for rapid detection of one of the virulence determinants associated with increased pathogenicity of H5N1 AIVs in mammals.
    Type of Medium: Online Resource
    ISSN: 1040-6387 , 1943-4936
    URL: Article
    DOI: 10.1177/1040638718769951
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
    detail.hit.zdb_id: 2265211-5
    SSG: 22
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  • 5
    Online Resource
    Online Resource
    Self-monitoring of composite structures strengthened with prestressed hybrid fiber-reinforced polymer sheets
    SAGE Publications ; 2016
    In:  Journal of Intelligent Material Systems and Structures Vol. 27, No. 18 ( 2016-11), p. 2456-2476
    Details
    In: Journal of Intelligent Material Systems and Structures, SAGE Publications, Vol. 27, No. 18 ( 2016-11), p. 2456-2476
    Abstract: A new type of intelligent composite structure is proposed, consisting of reinforced concrete and prestressed hybrid fiber-reinforced polymer sheets. The hybrid fiber-reinforced polymer consists of basalt and carbon fibers. The carbon fibers function as both sensitive and structural materials to improve stiffness of the hybrid fiber-reinforced polymer sheets and provide a self-monitoring function, whereas basalt fibers function only as structural materials to improve their ductility and decrease the cost. A series of experiments were performed to study the mechanical and monitoring performances of the hybrid fiber-reinforced polymer–concrete composite structures. The results show that their mechanical and self-monitoring performances are markedly upgraded through prestressing the hybrid fiber-reinforced polymer sheets. The prestress improves both the strengthening and monitoring performances. Compared with the control beams, the cracking, steel yielding, and peak loads are improved by 44%, 26%, and 36%, respectively. Results reveal that the prestress also upgrades the monitoring sensitivity and stability of the hybrid fiber-reinforced polymer sheets. Since the electrical behavior is closely related to the mechanical behavior of the hybrid fiber-reinforced polymer–concrete composite beams, the strain, cracking, steel yielding, and the debonding and rupture of the hybrid fiber-reinforced polymer sheets can be well identified through the resistance measurement. A built-in health monitoring function is, thus, demonstrated for the intelligent hybrid fiber-reinforced polymer–concrete composite structures.
    Type of Medium: Online Resource
    ISSN: 1045-389X , 1530-8138
    URL: Article
    DOI: 10.1177/1045389X16633762
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2016
    detail.hit.zdb_id: 2088313-4
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  • 6
    Online Resource
    Online Resource
    How to better incorporate geographic variation in Airbnb price modeling?
    SAGE Publications ; 2023
    In:  Tourism Economics Vol. 29, No. 5 ( 2023-08), p. 1181-1203
    Details
    In: Tourism Economics, SAGE Publications, Vol. 29, No. 5 ( 2023-08), p. 1181-1203
    Abstract: Since entering the Chinese market in 2015, Airbnb has become a major player in the Chinese home-sharing arena. This article uses data from 8012 active Airbnb listings in Shanghai and presents three models (linear regression, geographically weighted regression, and random forest) to study the determinants of Airbnb listing prices and incorporate geographic variation in price modeling. Results show that property quality plays a key role in shaping listing prices. Due to Airbnb’s distinctions from traditional lodging in both features and business models, Airbnb pricing determinants differ accordingly. For example, location conditions were found to have a limited impact in regions with established transportation networks. Among the three models, random forest performed best in terms of prediction accuracy. Lastly, practical implications are discussed.
    Type of Medium: Online Resource
    ISSN: 1354-8166 , 2044-0375
    URL: Article
    DOI: 10.1177/13548166221097585
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2023
    detail.hit.zdb_id: 2026139-1
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  • 7
    Online Resource
    Online Resource
    Caveolin-1 and VEGF-C promote Lymph Node Metastasis in the Absence of Intratumoral Lymphangiogenesis in Non-small Cell Lung Cancer
    SAGE Publications ; 2010
    In:  Tumori Journal Vol. 96, No. 5 ( 2010-09), p. 734-743
    Details
    In: Tumori Journal, SAGE Publications, Vol. 96, No. 5 ( 2010-09), p. 734-743
    Abstract: Caveolin-1 is a key component of membrane caveolae which plays an important role in cell transformation, cell migration, metastasis and angiogenesis. The mechanism of caveolin-1 and VEGF-C in lymphatic metastasis of non-small cell lung cancer (NSCLC) is still unclear. This study aimed to define the caveolin-1 and VEGF-C expression and lymph vessel density in NSCLC and look for correlations with clinicopathological features in NSCLC. Methods Caveolin-1, VEGF-C, and D2–40 protein expression were assessed by immunohistochemistry in a tissue microarray constructed from 70 NSCLCs and 12 normal lungs. Results Caveolin-1 expression was detected in 31 of 70 (44.3%) NSCLCs, which was significantly lower than its expression in normal lungs (9 of 12, 75%; P = 0.049). Expression of VEGF-C was detected in 49 of 70 (70%) NSCLCs and 4 of 12 (33.3%) normal lungs (P = 0.022). Both caveolin-1 and VEGF-C expression were correlated with lymph node metastasis of NSCLC (P = 0.001; P = 0.028). Moreover, caveolin-1 expression was correlated with tumor stage, histological type, and differentiation grade (P = 0.012; P = 0.038; P = 0.002). VEGF-C expression was correlated only with histological type (P = 0.020). There was no correlation between intratumoral lymph vessel density and any clinicopathological parameters including lymph node status. Furthermore, there was no correlation between caveolin-1 expression, VEGF-C expression, and lymph vessel density. Conclusions These findings indicated a reduction of caveolin-1 expression in NSCLC and suggested that caveolin-1 as well as VEGF-C might be involved in lymph node metastasis of NSCLC. The role of caveolin-1 in lymphatic metastasis and intratumoral lymphangiogenesis in NSCLC needs further study. Free full text available at www.tumorionline.it
    Type of Medium: Online Resource
    ISSN: 0300-8916 , 2038-2529
    URL: Article
    DOI: 10.1177/030089161009600516
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2010
    detail.hit.zdb_id: 280962-X
    detail.hit.zdb_id: 2267832-3
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  • 8
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    Online Resource
    Preparation, Morphology and Properties of Electrospun Lauric Acid/PET Form-Stable Phase Change Ultrafine Composite Fibres
    SAGE Publications ; 2011
    In:  Polymers and Polymer Composites Vol. 19, No. 9 ( 2011-11), p. 773-780
    Details
    In: Polymers and Polymer Composites, SAGE Publications, Vol. 19, No. 9 ( 2011-11), p. 773-780
    Abstract: Lauric acid (LA)/polyethylene terephthalate (PET) ultrafine composite fibres as form-stable phase change materials (PCM) were prepared successfully via electrospinning. The morphology, thermal energy storage properties, thermal stability and flammability properties of electrospun LA/PET composite fibres were characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and microscale combustion calorimetry (MCC), respectively. It was found by SEM investigation that the average fibre diameter generally increased with increasing content of LA in the LA/PET composite fibres. The morphology of electrospun composite fibres changed from a cylindrical shape with a smooth surface (without LA) to a rough and non-uniform structure (with LA). The DSC measurements indicated that there was little change of the phase transition temperatures of the composite fibres, but there was a decrease of the heat enthalpies compared with the pure lauric acid. The TGA results showed that both the onset thermal degradation temperature and charred residue at 700 °C of composite fibres were lower than those of the pure PET fibres, due to the thermal instability of LA. The MCC tests showed that there were two peaks of heat release rate, which corresponded respectively to combustion of LA and PET in the electrospun composite fibres. It could be also found that the first peak increased and the second peak decreased with increasing LA content in composite fibres.
    Type of Medium: Online Resource
    ISSN: 0967-3911 , 1478-2391
    URL: Article
    DOI: 10.1177/096739111101900907
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2011
    detail.hit.zdb_id: 2099644-5
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  • 9
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    Online Resource
    Rolling bearing fault diagnosis based on improved VMD-adaptive wavelet threshold joint noise reduction
    SAGE Publications ; 2022
    In:  Advances in Mechanical Engineering Vol. 14, No. 10 ( 2022-10), p. 168781322211283-
    Details
    In: Advances in Mechanical Engineering, SAGE Publications, Vol. 14, No. 10 ( 2022-10), p. 168781322211283-
    Abstract: Due to the fault vibration signal of the rolling bearing is greatly interfered by the background noise, the fault features are easily submerged and result in a low fault diagnosis accuracy. A novel fault diagnosis method of rolling bearing is proposed based on improved VMD-adaptive wavelet threshold combined with noise reduction in this paper. Firstly, the modal components are obtained based on VMD decomposition; Secondly, the dual determination criteria of sample entropy and correlation coefficient are constructed to filter the components; Subsequently, an adaptive wavelet thresholding function is proposed, and quadratic noise reduction is applied to mixed IMFs, which in turn reconstructs each component to achieve joint noise reduction. Finally, based on traditional machine learning and deep learning diagnosis methods, the features of noise reduction signals are extracted to realize fault diagnosis. By verifying and analyzing the simulated signal with the measured signal, noise components, the expression of fault characteristics, and the accuracy of fault diagnosis are eliminated, enhanced, and improved.
    Type of Medium: Online Resource
    ISSN: 1687-8132 , 1687-8140
    URL: Article
    DOI: 10.1177/16878132221128397
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2501620-9
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  • 10
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    Online Resource
    Bioinspired design of a ridging shovel with anti-adhesive and drag reducing
    SAGE Publications ; 2015
    In:  Advances in Mechanical Engineering Vol. 7, No. 3 ( 2015-03-01), p. 168781401456854-
    Details
    In: Advances in Mechanical Engineering, SAGE Publications, Vol. 7, No. 3 ( 2015-03-01), p. 168781401456854-
    Abstract: Learning from the microstructure of the convex (concave) and ridging (triangle and arc-shaped) shapes of fresh lotus leaves and shark skin, bionic ridging shovels was designed with the characteristics of adhesion and resistance reduction. Ten ridging shovel models were established, and the interaction process with the soil by ANSYS is discussed. Stress analysis results showed that the bionic ridging shovel was more obvious in visbreaking and in the resistance reduction effect. An indoor soil bin experiment with the bionic ridging shovel and the prototype ridging shovel was operated as follows: the ridging resistance of the three types of ridging shovel was tested under the condition of two soil moistures (18.61% and 20.9%) and three different ridging speeds (0.68, 0.87, and 1.11 m/s). In this article, the structure, the mechanism, and their relationship to the functions are discussed. The results of this study will be useful in practical application in the field of agricultural machinery toward practical use and industrialization.
    Type of Medium: Online Resource
    ISSN: 1687-8140 , 1687-8140
    URL: Article
    DOI: 10.1177/1687814014568547
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2015
    detail.hit.zdb_id: 2501620-9
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