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1 – 10 of 146Bora Lee, Yonghun Yu and Yong-Joo Cho
This paper aims to provide a reliable and efficient numerical piston–cylinder design method and assess the effect of clearance on the piston-cylinder lubrication.
Abstract
Purpose
This paper aims to provide a reliable and efficient numerical piston–cylinder design method and assess the effect of clearance on the piston-cylinder lubrication.
Design/methodology/approach
Numerical analyses of lubrication characteristics were performed for the piston–cylinder interface. The axial piston was numerically modeled, and the film pressure was calculated using the unsteady two-dimensional Reynolds equation. The behavior of the piston was analyzed by calculating the eccentricity satisfying the force and moment balance.
Findings
The secondary motion of the piston included numerically simulated several cycles until the piston behavior converged, and contact with the inner wall of the cylinder and friction region was estimated. Results showed that the piston–cylinder clearance affected the contact force, length of the contact region and leakage flow rate.
Originality/value
This result improves the understanding of the piston–cylinder lubrication and suggests considerations in terms of lubrication in clearance design.
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Bora Lee, Yonghun Yu and Yong-Joo Cho
This paper aims to propose a new scuffing model caused by the depletion of additives in boundary lubrication condition.
Abstract
Purpose
This paper aims to propose a new scuffing model caused by the depletion of additives in boundary lubrication condition.
Design/methodology/approach
The differential equation governing the distribution of additive content in the fluid film was used. This formula was derived from the principle of mass conservation of additives considering the consumption due to surface adsorption of wear particles. The occurrence of scuffing was determined by comparing the wear rate of the oxide layer with the oxidation rate.
Findings
If the additive becomes depleted while sliding, the scuffing failure occurs even at a low-temperature condition below the critical temperature. The critical sliding distance at which scuffing failure occurred was suggested. The experimental data of the existing literature and the theoretical prediction using the proposed model are shown to be in good agreement.
Originality/value
It is expected to be used in the design of oil supply grooves for sliding bearings operating under extreme conditions or in selecting the minimum initial additive concentration required to avoid scuffing failure under given contact conditions.
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Fandy Tjiptono and Haja Tiana Rakotondrainibe Andrianombonana
Brand origin (BO) has been suggested as an important determinant of brand evaluation and purchase intention. However, previous studies have indicated that consumers have…
Abstract
Purpose
Brand origin (BO) has been suggested as an important determinant of brand evaluation and purchase intention. However, previous studies have indicated that consumers have limited knowledge and ability to recognize national origin of brands. The purpose of this paper is to assess brand origin recognition accuracy (BORA) and its relationships with brand evaluation and purchase intention in the Indonesian laptop market.
Design/methodology/approach
A convenient sample of 195 people in Daerah Istimewa Yogyakarta participated in the survey. They were given a list of 18 laptop brands (four local and 14 foreign brands) and were asked to identify their actual national origins.
Findings
The study found that consumers are more likely to misidentify than correctly recognize a true BO. This limited ability also has contributed to the low BORA scores for both local and foreign brands. Brand evaluation was found to be positively correlated with purchase intention. However, the current study could only find partial supports for the relationship between BORA scores and brand evaluation as well as purchase intention.
Practical implications
Many Indonesian consumers are unaware of the laptops’ BO, whether it is foreign or local. Companies need to inform, educate, and/or remind consumers of their brand’s true origin and avoid being associated with a weaker country image. Furthermore, despite all four Indonesian laptop brand names seem to use non-Indonesian names, only one brand gains a slightly better brand evaluation from favorable misclassification. It may suggest that the effectiveness of foreign branding strategy in the Indonesian laptop market is debatable.
Originality/value
This is one of the few studies examining BORA in Indonesia, the world’s fourth most populous country and the largest laptop market in Southeast Asia.
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Abstract
Purpose
Considering the increasing significance of corporate social responsibility (CSR) in the corporate world and the mixed findings of the financial implication of CSR investment in the financial economics literature, the purpose of this study is to examine the relationship between (im)material CSR investment and firm performance and the moderating role of airline type and economic conditions based on the stakeholder theory and institutional pressure argument.
Design/methodology/approach
This study uses a two-way random-effects model by firm and year along with using clustering coefficient estimation by firm to control for the possibility of inflated standard errors because of autocorrelation across years within a given firm.
Findings
This study finds that both material and immaterial CSR initiatives do not directly influence firm performance, but airline type and economic conditions do moderate the relationship. In specific, the study found that airlines’ investments in material CSR initiatives show an indifferent effect on firm performance between low-cost and full-service carriers and also between non-recessionary and recessionary periods. On the other hand, investments in immaterial CSR initiatives present different impacts on firm performance between low-cost and full-service carriers and between non-recessionary and recessionary periods. In details, the effect is more negative for low-cost carriers and recessionary periods than full-service carriers and non-recessionary periods.
Originality/value
This is the first empirical investigation of materiality for the airline industry in relation to firm performance using the industry-specific Materiality Map developed by the Sustainability Accounting Standards Board. Further, this study incorporates two additional moderators (airline type and economic conditions) to enhance the understanding of the proposed relationships between (im)material CSR and firm performance.
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Erhan Boğan and Bekir Bora Dedeoğlu
The purpose of this paper is to investigate the moderating role of employees’ self-experienced social responsibility perceptions in the relationship between employees…
Abstract
Purpose
The purpose of this paper is to investigate the moderating role of employees’ self-experienced social responsibility perceptions in the relationship between employees’ community- and environment-oriented social responsibility perceptions and trust in an organization.
Design/methodology/approach
The corporate social responsibility (CSR) construct is examined in the context of stakeholders including the community, environment and employees. The study was carried out with 438 questionnaires gathered from four- and five-star hotels operating in Alanya, Turkey. The proposed model was tested with the partial least squares method of structural equation modeling. Multiple group analysis was performed to test the moderating effect.
Findings
Findings reveal that employees’ community- and environment-oriented social responsibility perceptions have a positive effect on trust in the organization. Based on the results of multigroup analysis, the effect of employees’ community-oriented social responsibility perceptions on trust in the organization was determined to be more prominent in the group of employees with high self-experienced social responsibility perceptions. However, the same moderating effect could not be determined in relation to environment-oriented social responsibility perceptions and trust in the organization.
Originality/value
Studies focusing on CSR activities were mainly examined at the macro level. Internal stakeholders’ returns to these activities were not sufficiently considered. Contrary to previous studies that examine the link between CSR perceptions measured with Carroll’s pyramid dimensions and organizational trust, the current study examined CSR perceptions with the stakeholder approach. Moreover, the study discovered one of the variables defined as the black box that differentiates the returns that employees provide to CSR activities.
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Stefan Cronholm and Nicklas Salomonson
IT service management (ITSM) is a discipline for management and maintenance of IT-systems and is claimed to play a critical role in supporting and satisfying business…
Abstract
Purpose
IT service management (ITSM) is a discipline for management and maintenance of IT-systems and is claimed to play a critical role in supporting and satisfying business requirements. However, from a customer perspective, ITSM is considered as being costly and the outcome is not always satisfactory. Measurements used to monitor and evaluate ITSM-processes are mainly suggested from a service provider perspective. The purpose of this paper is to suggest measurements for ITSM based on a customer perspective that can be used for improving questionnaires.
Design/methodology/approach
The SERVQUAL scale has been used as a base for suggesting customer-oriented measurements for the ITSM-field. The gathered qualitative empirical data consisted of customer feedback, in questionnaires, to five IT service providers in Sweden. Based on these empirical data, the SERVQUAL scale has been modified according to ITSM-specific customer requirements. The service providers represent the sectors: car construction, forest management, IT consultants, public sector and logistics.
Findings
The paper demonstrates three types of findings: confirmation of original SERVQUAL determinants that could be reused in the ITSM-field, modification of attributes of the SERVQUAL determinants to better fit in the ITSM-field, and development of new categories and new attributes. Moreover, the analysis of SERVQUAL in relation to the empirical data revealed that the SERVQUAL's original conceptual structure needed to be improved. The authors have added a third hierarchical level that supports a conceptual understanding.
Originality/value
The knowledge contribution consists of a developed SERVQUAL, adjusted to fit the ITSM-field, and a suggested new conceptual structure of SERVQUAL consisting of three concepts: determinant, category and attribute.
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Nasrine Olson, Jan Michael Nolin and Gustaf Nelhans
The purpose of this paper is to investigate concepts that are used in depicting future visions of society, as afforded by technology, to map the extent of their use…
Abstract
Purpose
The purpose of this paper is to investigate concepts that are used in depicting future visions of society, as afforded by technology, to map the extent of their use, examine the level of their dominance in different research areas and geographic boundaries, identify potential overlaps, analyse their longitudinal growth, and examine whether any of the identified concepts has assumed an overarching position.
Design/methodology/approach
In total, 14 concepts, each of which is used to depict visions of future information infrastructures, were identified. More than 20,000 scholarly documents related to 11 of these concepts (those with 20 or more documents) are analysed by various qualitative/quantitative methods.
Findings
The concepts most referred to are semantic web and ubiquitous computing (all years), and internet of things (Year 2013). Publications on some newer concepts (e.g. digital living, real world internet) are minimal. There are variations in the extent of use and preferred concepts based on geographic and disciplinary boundaries. The overlap in the use of these terms is minimal and none of these terms has assumed an overarching umbrella position.
Research limitations/implications
This study is limited to scholarly publications; it would be relevant to also study the pattern of usage in governmental communications and policy documents.
Social implications
By mapping multiplicity of concepts and the dispersion of discussions, the authors highlight the need for, and facilitate, a broader discussion of related social and societal implications.
Originality/value
This paper is the first to present a collective of these related concepts and map the pattern of their occurrence and growth.
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Sedat Çelik and Bekir Bora Dedeoğlu
The purpose of this paper is to reveal the relationship between personality traits, travel motivations, perceived destination quality, overall destination satisfaction and…
Abstract
Purpose
The purpose of this paper is to reveal the relationship between personality traits, travel motivations, perceived destination quality, overall destination satisfaction and behavioral intentions of domestic tourists.
Design/methodology/approach
The quantitative research method was used in the study. A survey technique was used to collect data. Data were applied to incoming domestic tourist to Gaziantep and Sanliurfa cities in Southeast Anatolia of Turkey. The data obtained were analyzed by structural equation modeling.
Findings
The study showed that personal traits “agreeableness” and “conscientiousness” positively affect relaxation motivation. Cultural and relaxation motivations had a positive impact on satisfaction, whereas pleasure-seeking motivation has a negative impact on satisfaction. In addition, overall destination satisfaction is positively affected by destination quality perceptions and affects loyalty in a positive way.
Research limitations/implications
During the literature review phase, no scale was found according to different destination characteristics (cultural, nature and sea destinations). In this regard, developing new scales to measure destination quality in accordance with different destination types would allow comprehending the subject in a more clear and detailed way.
Practical implications
The establishment of relationship between variable examined by this study ensures that product and services provided by the destination reach the correct target audience, which brings along the success to destination. For instance, destination management organizations could get information from travel agencies they work with about the characteristics, and motivations of tourists, and could develop their strategies, and plans, accordingly.
Originality/value
This study has three important contributions. First, revealing the role of personality in tourist behavior; second, their behaviors and attitude before (motivation and personality) during (destination quality and satisfaction) and after visiting (behavioral intentions) were examined; and third, personality, travel motivation, destination quality and satisfaction are discussed together as a model in this study.
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David Eriksson and Göran Svensson
This paper aims to describe and discuss a balance model of theoretical business sustainability, to leverage the inferior side, so as to enhance performance.
Abstract
Purpose
This paper aims to describe and discuss a balance model of theoretical business sustainability, to leverage the inferior side, so as to enhance performance.
Design/methodology/approach
A conceptual description and discussion are provided, along with an empirical depiction.
Findings
The empirical illustration presents one organization that embodies the goals of theoretical business sustainability in the marketplace and society.
Research limitations/implications
Further research is needed to enhance our understanding of the phenomenon and performance of business sustainability in supply chains.
Practical implications
Findings highlight that there is no justification for practitioners to strive consistently for anything other than theoretical business sustainability, and stakeholders need to push organizations in that direction.
Originality/value
The paper contributes to our understanding of what should be done and why business sustainability performance should be improved in supply chains.
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Mouloud Bourareche, Rachid Nait Said, Fatiha Zidani and Nouara Ouazraoui
The purpose of this paper is to show the impact of operational and environmental conditions (risk influencing factors) on the component criticality of safety barriers…
Abstract
Purpose
The purpose of this paper is to show the impact of operational and environmental conditions (risk influencing factors) on the component criticality of safety barriers, safety barrier performance and accidents frequency and therefore on risk levels.
Design/methodology/approach
The methodology focuses on the integration of criticality importance analysis in barrier and operational risk analysis method, abbreviated as BORA-CIA. First, the impact of risk influencing factors (RIFs) associated with basic events on safety barrier performance and accident frequency is studied, and then, a risk evaluation is performed. Finally, how unacceptable risks can be mitigated regarding risk criteria is analyzed.
Findings
In the proposed approach (BORA-CIA), the authors show how specific installation conditions influence risk levels and analyze the prioritization of components to improve safety barrier performance in oil and gas process.
Practical implications
The proposed methodology seems to be a powerful tool in risk decision. Ordering components of safety barriers taking into account RIFs allow maintenance strategies to be undertaken according to the real environment far from average data. Also, maintenance costs would be estimated adequately.
Originality/value
In this paper, an improved BORA method is developed by incorporating CIA. More precisely, the variability of criticality importance factors of components is used to analyze the prioritization of maintenance actions in an operational environment.
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