Abstract The aim of this study is to analyze which extent the Journal Impact Factor (JIF) reflects amount excellent publications contained in a journal corresponding subject category. We are introducing two percentile-based indicators order measure excellence contribution at level. Calculations these have been carried out for twenty different Citation Reports (JCR) categories investigate correl...

The recent advancements in online social networks andmobile devices have provided valuable data sources to track users’ smartphone adoption, i.e., the usage of smartphones over time. An incisive understanding of users’ smartphone adoption can benefit many useful applications, ranging from user behavior understanding to targeted marketing. This paper studies smartphone adoption prediction in soc...

BACKGROUND AND PURPOSE Using confirmatory factor analysis, this study evaluates the relative impact of motor, cognitive, and perceptual deficits on functional autonomy with 100 elderly (aged 55 to 79 years) victims of stroke. METHODS Two different approaches were used for measuring functional autonomy: the Functional Autonomy Measurement System (Système de Mesure de l'Autonomie Fonctionnelle ...

peer-to-peer, online communities, user contribution This paper gives practical tips for administrators interested in promoting contribution within P2P communities used in the workplace. Users contribute to P2P communities both to maximize their own personal utility, and for social/cultural reasons. Administrators should consider both types of factor when designing their communities to encourage...

The influences of several operating factors on the viscosity of the Isfahan refinery waxy crude oil sample are studied through conducting some rheological shear rotational tests. The Taguchi design method is adopted to determine the impact of factors such as shear rate, temperature, cooling rate, wax content, and asphaltene content on the viscosity of the waxy crude oil. The results show that t...

This study intends to contribute to the understanding of online community by empirically answering the question of why community members are willing to making active contributions to their community. The relationships between members’ perceived importance of contribution motivation and their level of contribution in online communities are identified. In addition, the results of factor analysis ...

In this study conditions of refinement of car wash effluent from Paniz station in omidiyeh, Khuzestan by microfiltration polyvinylidene fluoride (PVDF- MFB) membrane with pore size 0.13 micrometer by taguchi method was investigated. Taguchi method has been applied to investigate the effect of various operating parameters such as feed pressure at 3 levels (0.4, 0.7 and 1.00 bars), feed Flow rate...