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Article
Publication date: 23 November 2022

Rang Wang and Sylvia Chan-Olmsted

Since influencer marketing becomes more sophisticated, it is difficult for brands to manage the strategy and process of this marketing practice. With a practical focus, this study…

2069

Abstract

Purpose

Since influencer marketing becomes more sophisticated, it is difficult for brands to manage the strategy and process of this marketing practice. With a practical focus, this study aims at helping marketers cope with the challenge by developing conceptual typologies for influencers and followers and suggesting marketing implications for each type of influencer and follower.

Design/methodology/approach

This study subscribes to the perspectives of virtual community and social information processing to develop conceptual typologies for influencers and followers based on their essential characteristics.

Findings

Based on levels of expertise and interactivity, influencers can be categorized as broadcasters, leaders, friends and companions. Each type has advantages in certain branding objectives (e.g. increasing awareness, inducing judgments and feelings, building brand and user imagery, encouraging pro-brand behaviors and managing relationships) and is associated with certain marketing limitations (e.g. reach, domain breadth, informational support, brand congruence and relationship management). Based on levels of behavioral engagement and the point of attachment, followers are categorized into spectators, participants, admirers and advocators, with specific marketing communication strategies most effective for each type (e.g. strategies of content, narratives, engagement and co-branding).

Originality/value

The study translates the idea of influencer community into a practically useful framework for practitioners to best leverage influencer marketing and an innovative perspective for scholars to further investigate the phenomenon.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 35 no. 8
Type: Research Article
ISSN: 1355-5855

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Article
Publication date: 7 September 2015

Elias Hadjielias and Panikkos Poutziouris

The purpose of this paper is to investigate the conditions underpinning the cooperative relationships between family businesses. The role of trust is also explored, given the…

1272

Abstract

Purpose

The purpose of this paper is to investigate the conditions underpinning the cooperative relationships between family businesses. The role of trust is also explored, given the focus on informal conditions nested within the cooperation between firms.

Design/methodology/approach

A case study research method is adopted in this paper. This research is conducted within a cooperative association in Cyprus where 40 retail family businesses trade under the same brand.

Findings

The findings suggest that cooperation between family businesses emerges and unfolds as a result of the presence and interrelationships between a number of critical conditions: trust, altruism, collective thinking, stewardship, friendship, and family values congruence. The work illustrates that trust becomes a catalyst to the emergence and maintenance of cooperative relations between family businesses. Trust between family leaders is important in building altruism, collective thinking, and stewardship norms amongst them, and helps in sustaining the cooperation between their respective firms. At the same time, trust (stemming from past friendship and values congruence between diverse family leaders) becomes important in bringing family businesses to cooperate together at first instance. Further, the findings stress the role of critical events and self-interest in moderating the role and influence of trust on the cooperation between family businesses.

Originality/value

This paper contributes to the family business field through new knowledge on the relations between family businesses and the unique conditions that shape their long-term cooperation.

Details

International Journal of Entrepreneurial Behavior & Research, vol. 21 no. 6
Type: Research Article
ISSN: 1355-2554

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Article
Publication date: 4 January 2021

Mazrina Mazlan, Muhammad Rizwan, Ahmad Danial Azzahari, Vidhya Selvanathan, Faridah Sonsudin and Nurshafiza Shahabudin

The purpose of this study is to modify guar gum (GG) into guar gum acetate (GGA) and phthaloyl guar gum (PHGG) by transesterification and phthaloylation, respectively.

266

Abstract

Purpose

The purpose of this study is to modify guar gum (GG) into guar gum acetate (GGA) and phthaloyl guar gum (PHGG) by transesterification and phthaloylation, respectively.

Design/methodology/approach

GG has been modified into GGA through transesterification reaction between GG and vinyl acetate and PHGG through esterification reaction with phthalic anhydride. The modified GG was characterized by solubility test, Fourier-transform infra-red (FTIR) spectroscopy, proton nuclear magnetic resonance (1H NMR) spectroscopy, X-ray diffractometry (XRD) and thermogravimetric analysis. Swelling properties of GGA and PHGG hydrogels in water were evaluated.

Findings

These two types of modified GG have better solubility such as in dimethyl sulfoxide and N,N-dimethylformamide but no true organosolubility was achieved. The modifications were confirmed through FTIR with new absorption peaks at 1,733 cm−1 for GGA and 1,709 cm−1 for PHGG coupled with observed substitution peaks at 1.80 to 2.20 ppm and 7.40 to 7.90 ppm, respectively, from 1H NMR spectroscopies. XRD revealed both GGA and PHGG are less crystalline than native GG. GGA was found to be more thermally stable than native GG, whereas PHGG was slightly less thermally stable than native GG. The swelling property in distilled water for native GG, PHGG and GGA was 918.43 ± 46.62%, 537.04 ± 2.87% and 393.04 ± 13.42%, respectively.

Research limitations/implications

The GGA and PHGG hydrogels are expected to be useful for biomedical fields such as tissue engineering and drug-delivery.

Originality/value

Modifications of native GG into GGA using vinyl acetate and PHGG using phthalic anhydride are novel.

Details

Pigment & Resin Technology, vol. 50 no. 6
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 4 November 2024

Tung Hoang Vo, Phuong Thi Hoai Nguyen, Truong Tai Nguyen, Nhu Thi Nguyen, Duc Dinh Nguyen and Duc D. La

Corrosion of steel in marine environments poses a significant economic and environmental challenge because of its detrimental effects on marine structures and equipment…

22

Abstract

Purpose

Corrosion of steel in marine environments poses a significant economic and environmental challenge because of its detrimental effects on marine structures and equipment. Traditional chemical inhibitors that mitigate corrosion often introduce harmful substances into the environment. As a result, there is a growing interest in exploring eco-friendly alternatives, such as plant-derived inhibitors, to reduce the environmental impact of corrosion protection strategies. The purpose of this study is to investigate the effectiveness of Phyllanthus urinaria extract as a green anti-corrosion additive for rebar steel in marine conditions.

Design/methodology/approach

Phyllanthus urinaria extract was prepared in the ethanol solution with the assistance of a sonicator. The steel’s surface upon addition of the extract was characterized using SEM, EDX and FTIR analysis. The electrochemical corrosion characteristics, including potentiodynamic polarization and electrochemical impedance spectroscopy, were used to evaluate the inhibitory performance of the extract on steel under simulated marine conditions (3.5% NaCl solutions).

Findings

The results of this study showed that with Phyllanthus urinaria extract’s content of 0.02% in NaCl solution of 3.5%, the corrosion rate decreased to about 30% compared to the controlled sample. Measurements of the inhibitory mechanism analysis study for all solutions from 0 mg/L to 1.114 mg/L of polyphenol from Phyllanthus urinaria extract showed a significant reduction in rebar corrosion rate, especially with 0.2228 mg/L polyphenol. Reinforcement can increase corrosion inhibition by up to 30% compared to the control sample.

Originality/value

To the best of the authors’ knowledge, this is the first study of using Phyllanthus urinaria extract as green inhibitor for protection of steel from the corrosion in the simulated marine solution. The protective mechanism for steel using Phyllanthus urinaria extract was investigated using the FTIR, SEM, EDX and electrochemical analysis. The results indicated that the polyphenols in the extract showed inhibition that could minimize the corrosion of reinforcement in marine environments.

Details

Anti-Corrosion Methods and Materials, vol. 72 no. 1
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 6 January 2025

Mainak Ranjan Chaki, Sanjib Biswas, Banhi Guha, Dragan Pamucar and Gautam Bandyopadhyay

“Know thyself” helps one to decide the career goal of his/her life and enables one to become self-concordant. In this context, the present work aims to discern the childhood…

16

Abstract

Purpose

“Know thyself” helps one to decide the career goal of his/her life and enables one to become self-concordant. In this context, the present work aims to discern the childhood interests (CI) of the HR professionals vis-à-vis their relevance.

Design/methodology/approach

The current study is grounded on two theoretical perspectives such as Socio-Cognitive Career Theory (SCCT) and Holland Theory of Career Choice (HTCC). In this regard, a mixed methodology has been applied. The research has been carried out in two phases. In the first phase, a focused group of experienced HR professionals was interviewed to understand their CI and their relevance to the HR profession through a qualitative analysis method such as narrative analysis. In the second phase, an Intuitionistic Fuzzy Number-based Full Consistency Method (FUCOM) is applied to find out the dominant CI based on the ratings given by 423 Indian HR professionals.

Findings

All professionals agreed that their CI have helped them perform in their profession. The research identifies five themes or main attributes of personality: Creative (Aesthetic-Non Verbal/Cultural), Communicative (Verbal/ Expressive Activities), People friendliness (Social Contribution), Socially Inclusive (Sociological leadership interest) and Physical Activity (Kinesthetic interests) with 24 subattributes (i.e. childhood interests). It is found that intrinsic interests in societal contributions have been a dominant feature since the childhood days of HR professionals. In all cases, FUCOM shows a very small DFC value <0.00005.

Practical implications

The research provides an important direction to the decision-makers for policy making and aspiring professionals an essential impetus to career planning.

Originality/value

This study is a rare one to discern CI using a mixed methodology for Indian HR professionals.

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Article
Publication date: 31 October 2018

Marcello Mariani, Rodolfo Baggio, Matthias Fuchs and Wolfram Höepken

This paper aims to examine the extent to which Business Intelligence and Big Data feature within academic research in hospitality and tourism published until 2016, by identifying…

8015

Abstract

Purpose

This paper aims to examine the extent to which Business Intelligence and Big Data feature within academic research in hospitality and tourism published until 2016, by identifying research gaps and future developments and designing an agenda for future research.

Design/methodology/approach

The study consists of a systematic quantitative literature review of academic articles indexed on the Scopus and Web of Science databases. The articles were reviewed based on the following features: research topic; conceptual and theoretical characterization; sources of data; type of data and size; data collection methods; data analysis techniques; and data reporting and visualization.

Findings

Findings indicate an increase in hospitality and tourism management literature applying analytical techniques to large quantities of data. However, this research field is fairly fragmented in scope and limited in methodologies and displays several gaps. A conceptual framework that helps to identify critical business problems and links the domains of business intelligence and big data to tourism and hospitality management and development is missing. Moreover, epistemological dilemmas and consequences for theory development of big data-driven knowledge are still a terra incognita. Last, despite calls for more integration of management and data science, cross-disciplinary collaborations with computer and data scientists are rather episodic and related to specific types of work and research.

Research limitations/implications

This work is based on academic articles published before 2017; hence, scientific outputs published after the moment of writing have not been included. A rich research agenda is designed.

Originality/value

This study contributes to explore in depth and systematically to what extent hospitality and tourism scholars are aware of and working intendedly on business intelligence and big data. To the best of the authors’ knowledge, it is the first systematic literature review within hospitality and tourism research dealing with business intelligence and big data.

Details

International Journal of Contemporary Hospitality Management, vol. 30 no. 12
Type: Research Article
ISSN: 0959-6119

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Article
Publication date: 10 July 2017

Chaoran Liu, Yufeng Su, Jinzhao Yue, Junjie Wang, Weiwei Xia, Dongxue Li, Wen Wang, Pan Wang and Zhiyong Duan

A self-adaptive piston is designed for the compressional gas cushion press nanoimprint lithography system. It avoids the lube pollution and high wear of traditional piston.

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Abstract

Purpose

A self-adaptive piston is designed for the compressional gas cushion press nanoimprint lithography system. It avoids the lube pollution and high wear of traditional piston.

Design/methodology/approach

The self-adaptive piston device consists of symmetrical piston bodies, piston rings and other parts. The two piston bodies are linked by a ball-screw. The locking nut adjusts the distance between two piston bodies to avoid the piston rings from being stuck. The piston rings are placed between two piston bodies.

Findings

The simulation results based on COMSOL indicate that cylinder vibration caused by self-adaptive piston is 15.9 times smaller than the one caused by a traditional piston.

Originality/value

The self-adaptive piston is superior to the traditional piston in decreasing cylinder vibration.

Details

Industrial Lubrication and Tribology, vol. 69 no. 4
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 2 January 2025

Yifan Zhang, Jianyang Zhu, Xu Wang, Yaochi Zhang and Le Gu

Under oil interruption, lubricant supply in the high-speed bearing cavity is interrupted, which reduces the bearing lubrication and cooling ability, thus leading to degradation of…

28

Abstract

Purpose

Under oil interruption, lubricant supply in the high-speed bearing cavity is interrupted, which reduces the bearing lubrication and cooling ability, thus leading to degradation of bearing performance or even its failure. This paper aims to study the effect of grooves at the noncontact outer ring area on the flow and thermal performance of high-speed bearings under oil interruption, which is expected to improve the resistance of existing bearings to oil interruption.

Design/methodology/approach

The groove was added to the noncontact outer ring area of the bearing, and a method of combining volume of fluid and MRF was adopted to systematically study and analyze the oil-gas flow field structure and the temperature field distribution in the bearing cavities.

Findings

Results show that the lubricating oil could be stored and guided by the grooves of the bearing outer ring into the key lubrication area inside the bearing cavity, which increased the oil content near the inner ring and made the oil distribution more uniform. As a result, lubrication cooling and heat dissipation performance of the bearing cavity was improved. Compared with the original bearing, the bearing with a V-shaped groove had the optimal lubrication and cooling performance.

Originality/value

A rolling bearing model of the noncontact outer ring area with grooves under oil interruption is established in the paper. The simulation results provide theoretical guidance for the research and development of high-speed bearings with stronger oil interruption resistance ability.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-06-2024-0199/

Details

Industrial Lubrication and Tribology, vol. 77 no. 2
Type: Research Article
ISSN: 0036-8792

Keywords

Available. Open Access. Open Access
Article
Publication date: 30 December 2024

Ming Gao, Dongkai Li, Kun Liu, Shuliang Xu, Feng Zhao, Ben Guo, Anhui Pan, Xiao Xie and Huanre Han

The brake pipe system was an essential braking component of the railway freight trains, but the existing E-type sealing rings had problems such as insufficient low-temperature…

49

Abstract

Purpose

The brake pipe system was an essential braking component of the railway freight trains, but the existing E-type sealing rings had problems such as insufficient low-temperature resistance, poor heat stability and short service life. To address these issues, low-phenyl silicone rubber was prepared and tested, and the finite element analysis and experimental studies on the sealing performance of its sealing rings were carried out.

Design/methodology/approach

The low-temperature resistance and thermal stability of the prepared low-phenyl silicone rubber were studied using low-temperature tensile testing, differential scanning calorimetry, dynamic thermomechanical analysis and thermogravimetric analysis. The sealing performance of the low-phenyl silicone rubber sealing ring was studied by using finite element analysis software abaqus and experiments.

Findings

The prepared low-phenyl silicone rubber sealing ring possessed excellent low-temperature resistance and thermal stability. According to the finite element analysis results, the finish of the flange sealing surface and groove outer edge should be ensured, and extrusion damage should be avoided. The sealing rings were more susceptible to damage in high compression ratio and/or low-temperature environments. When the sealing effect was ensured, a small compression ratio should be selected, and rubbers with hardness and elasticity less affected by temperature should be selected. The prepared low-phenyl silicone rubber sealing ring had zero leakage at both room temperature (RT) and −50 °C.

Originality/value

The innovation of this study is that it provides valuable data and experience for the future development of the sealing rings used in the brake pipe flange joints of the railway freight cars in China.

Details

Railway Sciences, vol. 4 no. 1
Type: Research Article
ISSN: 2755-0907

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Article
Publication date: 29 July 2019

Zhenlin Wang, Zhansheng Liu and Guanghui Zhang

The purpose of this paper is to present a numerical model to investigate the dynamic behavior and force coefficients of a compact squeeze film damper with dual film clearances…

224

Abstract

Purpose

The purpose of this paper is to present a numerical model to investigate the dynamic behavior and force coefficients of a compact squeeze film damper with dual film clearances adjusted by an elastic ring, known as elastic ring squeeze film damper (ERSFD).

Design/methodology/approach

The governing equations of ERSFD as well as the boundary conditions are obtained based on Reynolds equation. A simplified Greenwood–Williamson model is implemented to investigate the contact behavior between the elastic ring and the journal. The interactions between the films and the elastic ring are achieved by block iterative method.

Findings

The radial deformation as well as velocity of the elastic ring are captured to illustrate the pressure profiles of the inner and outer films. High-order frequency components related to the number of the boss N are observed on the frequency spectrum of the film force. The force coefficients of the ERSFD are constant for a wider range of non-dimensional whirling radius ε compared with conventional squeeze film damper.

Originality/value

The force coefficients of the ERSFD are obtained by assuming that the journal center moves in a circular centered orbit. High-order frequency components related to the number of bosses N are observed. These findings may provide helpful materials for the application of the ERSFD.

Details

Industrial Lubrication and Tribology, vol. 71 no. 10
Type: Research Article
ISSN: 0036-8792

Keywords

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