Understanding Online Brand Communities: Netnographic Study of Apple iPhone Consumers

This study extends the concept of brand communities. The netnography approach has been applied to two online brand communities, both central to Apple iPhone consumers. This study reveals two cultural manifestations with their own passions and communal norms not detected by previous research. This study, thus, enriches the conceptual understanding of brand communities. It also offers contribution toward understanding consumers of high technology brands, an area where few studies have been conducted to date

Recent Advances for Wastewater Treatment on Polyvinylidene Fluoride-Based Membrane: A Review

The development of scalable membrane-based separation processes has attracted considerable interest on laboratory and industrial scales. Polyvinylidene fluoride (PVDF) is one of the most widely used fluoropolymer materials for membrane fabrication due to its excellent mechanical strength, good thermal stability and chemical resistance as well as aging resistance. However, the hydrophobic nature of PVDF has resulted in serious membrane fouling during the filtration process. From the past decade, the embedment of hydrophilic materials in/on PVDF-based membranes can significantly alter the membrane’s morphology and surface properties. Therefore, based on most articles retrieved from Web of Science, Scopus, Google Scholar, etc., this article provides the overview of the recent development of PVDF-based membranes during the recent several decades. The detailed information regarding PVDF as a polymer material as well as the main challenge in the development of PVDF-based membranes with better performance was summarised. Moreover, the factors influencing membrane fouling including surface hydrophilicity, roughness and charge are also addressed. Then, the PVDF-based membrane preparation and its recent modification via the blending method were discussed. Finally, the overview and future perspective of PVDF-based membrane development are reviewed. Overall, it can be concluded that PVDF-based membranes have great potential for further advances towards the development of membrane technologies for the future

A Framework for Cross-Cultural Consumer Research

A conceptual background of cross-cultural consumer research was investigated based on McCracken’s culture and consumption theory and Hofstede’s national culture theory. Two theories are compared and then an integrated framework is proposed for cross-cultural consumer research. This framework suggests that Hofstede’s cultural dimensions can be used to classify different cultural groups for macro level analysis and McCracken’s cultural categories, principles, and movement of meaning can be applied to explain individuals’ consumption behaviour for micro level analysis. Conference papers are not currently available

One Step Closer to the Field: Visual Method in Marketing and Consumer Research

The purpose of this study is to examine the use of visual research methods in the area of recent marketing and consumer research. All articles published in Journal of Consumer Research (JCR), Journal of Marketing (JM), Journal of Marketing Research (JMR), Journal of Marketing Management (JMM), Consumption, Markets, and Culture (CMC), and Qualitative Market Research (QMR) from year 2002 to 2010 were examined. A total of one hundred and twenty two articles with images or pictures were selected for further analysis. This study found that a total of sixty research studies employed photograph or video as ‘projective stimuli’, a total of forty four research studies used ‘cultural inventories’, and seven research studies employed ‘social artifacts’. Overall, this study found that a growing number of marketing and consumer researchers utilize visual methods in various ways to achieve their research goal

Incorporation of electrochemically exfoliated graphene oxide and TiO2 into polyvinylidene fluoride-based nanofiltration membrane for dye rejection

In this work, the novel direct synthesis method of dimethylacetamide-based graphene oxide (GO) was performed through electrochemical exfoliation assisted by commercially available single-tail sodium dodecyl sulphate (SDS) surfactant. Then, the synthesised GO (SDS–GO) was incorporated into polyvinylidene fluoride (PVDF) solution to produce a nanofiltration (NF) membrane through the phase immersion method. The addition of GO into the preparation of membrane solution alters the membrane morphology and improves the hydrophilicity. TiO2 was also used as an additive for the NF membrane fabrication to further increase the membrane hydrophilicity. The fabricated PVDF/SDS–GO/TiO2 and PVDF/SDS–GO NF membranes were compared with pure PVDF membrane. Then, the fabricated NF membranes were tested for methylene blue (MB) rejection with 10 ppm MB concentration. On the basis of the dead-end cell measurement operated at the pressure of 2 bar, the PVDF/SDS–GO/TiO2 presents high MB rejection (92.76%) and the highest dye flux (7.770 L/m2 h). This dye flux value was sevenfold higher than that of pure PVDF membrane (1.146 L/m2 h) which was due to the utilisation of both GO and TiO2 that improved the membrane hydrophilicity as indicated by the lowest contact angle (64.0 ± 0.11°). High porosity (57.46%) also resulted in the highest water permeability (4.187 L/m2 h bar) of the PVDF/SDS–GO/TiO2 NF membrane