ORCID Profile
0000-0003-1579-3122
Current Organisation
Université de Paris Faculté de Santé
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Publications
Can a Dynamic Contact Angle Be Understood in Terms of a Friction Coefficient?
Publisher: Elsevier BV
Date: 06-2000
Reality or Perception?
Publisher: SAGE Publications
Date: 05-2003
DOI: 10.1177/1094670503005004002
Abstract: The extent to which actual (rather than perceived) performance influences customer satisfaction has received limited attention by researchers, yet it is important for managers to understand the extent to which customer perceptions and behavioral intentions are associated with actual service performance. This study investigates the links between actual and perceived performance, customer standards, attributions, satisfaction, and behavioral intention. The results suggest that actual performance is a significant predictor of customer satisfaction, separate from its indirect association via perceived performance. Customers' comparison standards are also suggested to affect satisfaction both directly and indirectly. Customer attributions, in contrast, do not appear to influence performance judgments but are significantly associated with satisfaction levels. Customer experience is shown to be associated with satisfaction via an interaction effect and also to be significantly associated with behavioral intentions. The implications for research and management are discussed.
Analytical Approach for the Lucas–Washburn Equation
Publisher: Elsevier BV
Date: 06-2002
Abstract: Porous media can be characterized by studying the kinetics of liquid rise within the pore spaces. Although porous media generally have a complex structure, they can be modeled as a single, vertical capillary or as an assembly of such capillaries. The main difficulties lie in separately estimating the effective mean radius of the capillaries and the contact angle between the liquid and the pore. In this paper we circumvent these obstacles by exploring another approach and suggest an analytical approach of the classical Lucas-Washburn equation (LWE). Specifically, we consider that the contact angle between the liquid meniscus and the inner surface of the capillary becomes a dynamic contact angle when the liquid front is in movement. It has previously been demonstrated that the resulting time dependence is due to frictional dissipation at the moving wetting front.
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Related Funding Activities
No related grants have been discovered for Ahmed Hamraoui.