Search results for "equation"
showing 10 items of 4219 documents
Shakedown analysis for a class of strengthening materials within the framework of gradient plasticity
2010
Abstract The classical shakedown theory is extended to a class of perfectly plastic materials with strengthening effects (Hall–Petch effects). To this aim, a strain gradient plasticity model previously advanced by Polizzotto (2010) is used, whereby a featuring strengthening law provides the strengthening stress, i.e. the increase of the yield strength produced by plastic deformation, as a degree-zero homogeneous second-order differential form in the accumulated plastic strain with associated higher order boundary conditions. The extended static (Melan) and kinematic (Koiter) shakedown theorems are proved together with the related lower bound and upper bound theorems. The shakedown limit loa…
Factors influencing the adoption postponement of mobile payment services in the hospitality sector during a pandemic
2021
Abstract In the post-COVID-19 era, the hospitality sector may witness a wider use of mobile payment services (MPS) not requiring physical contact. But consumers may postpone adoption of MPS in wait for a more attractive iteration. Given consumers' reluctance to adapt to such services, an investigation into MPS adoption postponement and the factors contributing to it is thus needed. Our research model extends the innovation resistance theory by including two behavioral measures (privacy concerns and visibility) and examining how security concerns moderate the associations between them. We analyzed data from 308 respondents who had previously purchased accommodation and transportation service…
Key drivers of internet banking services use
2009
PurposeThe purpose of this paper is to analyse the determinants of internet banking use, paying special attention to the role of product involvement, perceived risk and trust.Design/methodology/approachThe impact of trust, perceived risks, product involvement and TAM beliefs (ease of use and usefulness) on internet banking adoption is tested through structural equation modelling techniques. The sample consists of 511 Spanish internet banking services users and the data are collected through an internet survey. Risk is measured as a formative construct.FindingsData analysis shows that TAM beliefs and perceived risks (security, privacy, performance and social) have a direct influence on e‐ban…
The Influence of the Congruence Between Brand and Consumer Personality on the Loyalty to Print and Online Issues of Magazine Brands
2012
An important development in the theory of brands has been the concept of a brand personality as part of the brand image. The construct of congruence relates the personality of brands to the self-concept of consumers. It is assumed that congruence between the recipient's perception of his or her own personality and his or her perception of the brand personality leads to a higher degree of loyalty. The congruence construct has been proven to be a loyalty-promoting factor in various studies for consumer good brands. Whether the influence of congruence also exists with regard to media brands has, however, not yet been examined. As a step to close the gap, this research explores the effects of c…
Key drivers of services website loyalty
2014
The ease of website comparison and strong price competition encourage users to constantly switch tourism service providers. The present work analyses how satisfaction, trust, and commitment can help to strengthen loyalty towards websites selling accommodation services. Moreover, special attention is paid here to evaluate the moderating effects of gender on the relationships between these variables. Structural equation models were used to test the hypotheses on a sample of 230 Mexican Internet users, online purchasers of tourist accommodation services. The results show significant differences between men and women's post-purchase behaviour with a higher influence in women of trust on commitm…
Large-eddy simulations of turbulent flow with heat transfer in simple and complex geometries using Harwell-FLOW3D
1996
Abstract Large-eddy simulation (LES) results are presented and discussed for the turbulent flow with heat transfer in different geometrical configurations, including a plane channel, a channel bearing transverse square ribs on one of the walls, and a crossed-corrugated air heater. They were obtained using the computational fluid dynamics (CFD) code Harwell-FLOW3D (Release 2), finite-volume grids having up to 423 nodes, and the Smagorinsky subgrid model with several variants regarding near-wall damping and wall boundary conditions. The first problem (plane turbulent Poiseuille flow with heat transfer) was mainly used as a benchmark to investigate the influence of numerical methods (pressure-…
Influence of online shopping information dependency and innovativeness on internet shopping adoption
2008
PurposeThe paper's purpose is to analyse the influence of online shopping information dependency and innovativeness on the acceptance of internet shopping.Design/methodology/approachThe impact of online shopping information dependency, domain‐specific innovativeness and technology acceptance model (TAM) variables on future shopping intention has been tested through structural equation modelling techniques. The sample consisted of 465 Spanish consumers who had never purchased online.FindingsData analysis shows that consumer innovativeness and online shopping information dependency have a direct and positive influence on future online shopping intention and that the basic TAM hypotheses are f…
Key drivers of consumer loyalty to Facebook fan pages
2014
Purpose – With the rapid expansion of social networking sites, researchers and practitioners are challenged to understand drivers of customer loyalty in fan pages. The purpose of this paper is to identify the main drivers of Facebook fan page loyalty in order to promote the creation of affective links and long-term relationships with users. Design/methodology/approach – The impact of trust, fan page content dependency, attitude and consumer beliefs on loyalty to fan pages was tested through structural equation modelling techniques. The sample consisted of 691 Spanish Facebook users. Findings – Data analysis shows that attitude appears as a key variable in increasing loyalty to fan pages. T…
Relationships between work-family culture and work attitudes at both individual and the department level
2011
There is a need to better understand the nature of work-family culture and its relationships with job-related outcomes. The main objective of this study was to investigate the associations between a supportive work-family culture and work attitudes (i.e., job satisfaction, work engagement, turnover intentions) at both the individual and work departmental level. Survey-based data were gathered from 52 Finnish work departments (1219 individuals) in the domains of health care, ICT, and the paper industry. Data were analysed via multilevel structural equation modelling. Work-family culture was assessed via managers’ supportiveness, organizational time demands, and the expected career consequenc…
A Novel Instrument to Measure the Multidimensional Structure of Professional Agency
2018
This study aimed to construct and validate a quantitative measurement instrument to determine the structure of professional agency in working life. Empirical data (N = 589) were collected via a web-based, theoretically informed questionnaire, within the professional domains of education, healthcare, rescue services, and information technology. The questionnaire items incorporated theoretically based dimensions of professional agency. The structure of professional agency was initially analysed via exploratory factor analysis. Thereafter, using exploratory structural equation modelling, the structure of professional agency was investigated with a view to confirmation and validation. The resul…