The role of trip purpose and hotel star rating on guests’ satisfaction and WOM

© 2018, Emerald Publishing Limited. Purpose: This paper aims to understand how guests’ trip purpose and hotel star rating influence the effects of the value for money perceived at hotels and service quality on guest satisfaction and word of mouth (WOM) recommendation. Design/methodology/approach: Using TripAdvisor, 25 Singaporean hotels were randomly selected for the study, which yielded hotel reviews from 2,040 respondents. Hierarchical and logistic regression analysis was conducted to investigate the relationships proposed in the study. Findings: Results indicate significant differences between leisure and business guests’ perception of value for money and service quality at hotels with various star ratings. While perceived value for money and service quality were found as significant predictors for both leisure and business guests’ satisfaction and WOM, the effects were moderated by the hotel star rating. Despite the significant effect of hotel star rating on guest satisfaction, the study found no significant relationships between hotel star rating and WOM for leisure and business guests. Practical implications: The findings suggest that managers in the hotel industry should understand the purpose of guests’ trip and offer services based on their expectations. As the star rating of a hotel creates certain expectations for both leisure and business guests, providing an appropriate level of services and assuring value for money in accordance with the hotel rating contributes to guest satisfaction and WOM recommendation. Originality/value: This study contributes to the hospitality literature by investigating how hotel star rating moderates the relationship of value for money and service quality on leisure and business guests’ satisfaction and WOM recommendation

Travel Time Shifts due to Amplitude Modulation in Time-Distance Helioseismology

Correct interpretation of acoustic travel times measured by time-distance helioseismology is essential to get an accurate understanding of the solar properties that are inferred from them. It has long been observed that sunspots suppress p-mode amplitude, but its implications on travel times has not been fully investigated so far. It has been found in test measurements using a 'masking' procedure, in which the solar Doppler signal in a localized quiet region of the Sun is artificially suppressed by a spatial function, and using numerical simulations that the amplitude modulations in combination with the phase-speed filtering may cause systematic shifts of acoustic travel times. To understand the properties of this procedure, we derive an analytical expression for the cross-covariance of a signal that has been modulated locally by a spatial function that has azimuthal symmetry, and then filtered by a phase speed filter typically used in time-distance helioseismology. Comparing this expression to the Gabor wavelet fitting formula without this effect, we find that there is a shift in the travel times, that is introduced by the amplitude modulation. The analytical model presented in this paper can be useful also for interpretation of travel time measurements for non-uniform distribution of oscillation amplitude due to observational effects.Comment: 17 pages, 1 figure, accepted for publication in Ap

Helioseismic Ring Analysis of CME Source Regions

We apply the ring diagram technique to source regions of halo coronal mass ejections (CMEs) to study changes in acoustic mode parameters before, during, and after the onset of CMEs. We find that CME regions associated with a low value of magnetic flux have line widths smaller than the quiet regions implying a longer life-time for the oscillation modes. We suggest that this criterion may be used to forecast the active regions which may trigger CMEs.Comment: Accepted for publication in J. Astrophys. Astr. Also available at http://www2.nso.edu/staff/sushant/paper.htm

Radiative transfer effects on Doppler measurements as sources of surface effects in sunspot seismology

We show that the use of Doppler shifts of Zeeman sensitive spectral lines to observe wavesn in sunspots is subject to measurement specific phase shifts arising from, (i) altered height range of spectral line formation and the propagating character of p mode waves in penumbrae, and (ii) Zeeman broadening and splitting. We also show that these phase shifts depend on wave frequencies, strengths and line of sight inclination of magnetic field, and the polarization state used for Doppler measurements. We discuss how these phase shifts could contribute to local helioseismic measurements of 'surface effects' in sunspot seismology.Comment: 12 pages, 4 figures, Accepted for publication in the Astrophysical Journal Letter

Effect of laser surface treatment on the corrosion and fatigue performance of aa5456-h116 alloys

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Variations in pp-Mode Parameters with Changing Onset-Time of a Large Flare

It is expected that energetic solar flares releasing large amount of energy at the photosphere may be able to excite the acoustic ($p$-) modes of oscillations. We have determined the characteristic properties of mode parameters by applying the ring diagram technique to 3-D power spectra obtained for solar active region NOAA 10486 during the long duration energetic X17.2/4B flare of October 28, 2003. Strong evidence of substantial increase in mode amplitude and systematic variations in sub-surface flows, i.e., meridional and zonal components of velocity, kinetic helicity, vorticity, is found from comparison of the pre- to the post-flare phases.Comment: 14 pages, 4 figure