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1 – 8 of 8Matthias Humer and Stefan Habel
Due to the installation of the new, more powerful gearbox and the dismantling of the exciter machine, the vibration characteristics of the shaft train will be changed. Therefore…
Abstract
Purpose
Due to the installation of the new, more powerful gearbox and the dismantling of the exciter machine, the vibration characteristics of the shaft train will be changed. Therefore, it is necessary to reassess the shaft train. It is to be investigated if the shaft train of the compressor meets the general requirements for bending and torsional vibrations and can be safely operated within the electrical network. The purpose of this paper is to show the necessary alignment of modification, calculation and measurement in such a project..
Design/methodology/approach
After some modification work on the shaft train of an air compressor, it was necessary to do some engineering calculations regarding the bending natural and torsional natural frequencies and their mode shapes. The correctness of the calculated values was proven by vibration measurements performed at the shaft train in operation.
Findings
It can be concluded that the change and replacement of rotating equipment in a shaft train never should be done without any engineering calculations in advance and measurements after the component modification. Most important is that the calculation results have to be compared with the measurement results for verifying the calculation assumptions. In the case described above, one can see that theory and practice match well. In addition to this, the very low damping of torsional vibrations is proved again, which can be a significant problem in some situations.
Originality/value
Also, today one can find torsional vibration measurements of rotating machines, including frequency, magnitude and damping factor, very seldom. Especially for smaller machines, there are no real comparisons between calculation and measurement are usual. This paper shows that an alignment between theoretical and practical approaches is necessary to avoid operational problems for rotating machines.
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Stefan Höhne and Victor Tiberius
The purpose of this study is to formulate the most probable future scenario for the use of blockchain technology within the next 5–10 years in the electricity sector based on…
Abstract
Purpose
The purpose of this study is to formulate the most probable future scenario for the use of blockchain technology within the next 5–10 years in the electricity sector based on today’s experts’ views.
Design/methodology/approach
An international, two-stage Delphi study with 20 projections is used.
Findings
According to the experts, blockchain applications will be primarily based on permissioned or consortium blockchains. Blockchain-based applications will integrate Internet of Things devices in the power grid, manage the e-mobility infrastructure, automate billing and direct payment and issue certificates regarding the origin of electricity. Blockchain solutions are expected to play an important big role in fostering peer-to-peer trading in microgrids, further democratizing and decentralizing the energy sector. New regulatory frameworks become necessary.
Research limitations/implications
The Delphi study’s scope is rather broad than narrow and detailed. Further studies should focus on partial scenarios.
Practical implications
Electricity market participants should build blockchain-based competences and collaborate in current pilot projects.
Social implications
Blockchain technology will further decentralize the energy sector and probably reduce transaction costs.
Originality/value
Despite the assumed importance of blockchain technology, no coherent foresight study on its use and implications exists yet. This study closes this research gap.
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Eun Young Park and Jung Min Jang
The purpose of this paper demonstrate that purchase intention toward a cause-related marketing (CRM)-enhanced product can be positively correlated with consumers’ social…
Abstract
Purpose
The purpose of this paper demonstrate that purchase intention toward a cause-related marketing (CRM)-enhanced product can be positively correlated with consumers’ social responsibility consciousness (SRC) and can be increased or decreased merely by changing the evaluation mode.
Design/methodology/approach
The authors conduct three experimental studies with two levels of SRC (high vs low) × two evaluation modes (joint evaluation (JE) vs separate evaluation (SE)) between-subjects design. The dependent variable is purchase intent toward the CRM-enhanced product.
Findings
The results indicate that consumers with high SRC are more likely than those with low SRC to purchase a CRM-enhanced product when two products are presented side by side (JE). However, consumers’ SRC level does not impact purchase intention when they see only one product (SE) independently (Study 1). The authors confirm that the proposed effect is mediated by perceived price fairness toward the product (Studies 2 and 3).
Research limitations/implications
Future research on CRM-enhanced products should carefully consider that the impact of individuals’ SRC level was in very different directions depending on the evaluation mode. In addition, further investigation is needed to address generalizability issues regarding samples and hypothetical stimuli.
Practical implications
These findings offer recommendations to help practitioners design effective marketing communications about CRM practice for target markets.
Originality/value
To the authors best knowledge, the current study is the first attempt to explore the crucial role of SRC, presentation mode and their interaction on purchase intention toward CRM-enhanced products.
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Nagat Zalhaf, Mariam Ghazy, Metwali Abdelatty and Mohamed Hamed Zakaria
Even though it is widely used, reinforced concrete (RC) is susceptible to damage from various environmental factors. The hazard of a fire attack is particularly severe because it…
Abstract
Purpose
Even though it is widely used, reinforced concrete (RC) is susceptible to damage from various environmental factors. The hazard of a fire attack is particularly severe because it may cause the whole structure to collapse. Furthermore, repairing and strengthening existing structures with high-performance concrete (HPC) has become essential from both technical and financial points of view. In particular, studying the postfire behavior of HPC with normal strength concrete substrate requires experimental and numerical investigations. Accordingly, this study aims to numerically investigate the post-fire behavior of reinforced composite RC slabs.
Design/methodology/approach
Consequently, in this study, a numerical analysis was carried out to ascertain the flexural behavior of simply supported RC slabs strengthened with HPC and exposed to a particularly high temperature of 600°C for 2 h. This behavior was investigated and analyzed in the presence of a number of parameters, such as HPC types (fiber-reinforced, 0.5% steel, polypropylene fibers [PPF], hybrid fibers), strengthening side (tension or compression), strengthening layer thickness, slab thickness, boundary conditions, reinforcement ratio and yield strength of reinforcement.
Findings
The results showed that traction-separation and full-bond models can achieve accuracy compared with experimental results. Also, the fiber type significantly affects the postfire performance of RC slab strengthened with HPC, where the inclusion of hybrid fiber recorded the highest ultimate load. While adding PPF to HPC showed a rapid decrease in the load-deflection curve after reaching the ultimate load.
Originality/value
The proposed model accurately predicted the thermomechanical behavior of RC slabs strengthened with HPC after being exposed to the fire regarding load-deflection response, crack pattern and failure mode. Moreover, the considered independent parametric variables significantly affect the composite slabs’ behavior.
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Stefan Wengler, Gabriele Hildmann and Ulrich Vossebein
The majority of business-to-business companies are working on their digital transformation in sales. Despite enormous transformation efforts, the expected productivity gains are…
Abstract
Purpose
The majority of business-to-business companies are working on their digital transformation in sales. Despite enormous transformation efforts, the expected productivity gains are often missing in most companies. Based on empirical research, this paper aims to develop a new market-oriented transformation model. Management implications as well as future research directions are derived for a more focused digital transformation process in sales.
Design/methodology/approach
Within the exploratory research study, 90 key informants were interviewed to provide better insights in the context of digital transformation in sales. The accuracy of the research results was safeguarded by triangulation.
Findings
As this research paper will show, the reasons for the missing productivity gains caused by a limited knowledge about the main success factors of digital transformation as well as a lack of understanding of digital transformation as an evolving process.
Originality/value
Based on the empirical research, a new market-oriented transformation model is developed and management implications as well as future research directions are derived for a more focused digital transformation process in sales.
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Andrews Adugudaa Akolaa, John Paul Basewe Kosiba, Felix Appiah and Akua Akuffo Nyanteh
This study investigates the effect of product quality and price fairness on consumer cause-related marketing (CRM) participation and also the moderating role of donation-related…
Abstract
Purpose
This study investigates the effect of product quality and price fairness on consumer cause-related marketing (CRM) participation and also the moderating role of donation-related customer predispositions (i.e. empathy and cause importance) on this relationship.
Design/methodology/approach
Data for the study were obtained from 240 respondents. A structural equation modelling approach was used in analysing the data.
Findings
Results from the analysis indicate that fair pricing and product quality affect CRM participation. The findings also provide insights into the moderation role of empathy and cause importance.
Originality/value
Prior research studied the effect of promotion on CRM participation; however, this study examines the effect of product and price. The findings offer insight into issues of research and managerial interest, offering insightful implications to the academic and practitioner communities in developing countries, respectively.
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Ernan E. Haruvy and Peter T.L. Popkowski Leszczyc
This paper aims to demonstrate that Facebook likes affect outcomes in nonprofit settings. Specifically, Facebook likes influence affinity to nonprofits, which, in turn, affects…
Abstract
Purpose
This paper aims to demonstrate that Facebook likes affect outcomes in nonprofit settings. Specifically, Facebook likes influence affinity to nonprofits, which, in turn, affects fundraising outcomes.
Design/methodology/approach
The authors report three studies that establish that relationship. To examine social contagion, Study 1 – an auction field study – relies on selling artwork created by underprivileged youth. To isolate signaling, Study 2 manipulates the number of total Facebook likes on a page. To isolate commitment escalation, Study 3 manipulates whether a participant clicks a Facebook like.
Findings
The results show that Facebook likes increase willingness to contribute in nonprofit settings and that the process goes through affinity, as well as through Facebook impressions and bidding intensity. The total number of Facebook likes has a direct signaling effect and an indirect social contagion effect.
Research limitations/implications
The effectiveness of the proposed mechanisms is limited to nonprofit settings and only applies to short-term effects.
Practical implications
Facebook likes serve as both a quality signal and a commitment mechanism. The magnitude of commitment escalation is larger, and the relationship is moderated by familiarity with the organization. Managers should target Facebook likes at those less familiar with the organization and should prioritize getting a potential donor to leave a like as a step leading to donation, in essence mapping a donor journey from prospective to active, where Facebook likes play an essential role in the journey. In a charity auction setting, the donor journey involves an additional step of bidder intensity.
Social implications
The approach the authors study is shown effective in nonprofit settings but does not appear to extend to corporate social responsibility more broadly.
Originality/value
To the best of the authors’ knowledge, this study is the first investigation to map Facebook likes to a seller’s journey through signals and commitment, as well as the only investigation to map Facebook likes to charity auctions and show the effectiveness of this in the field.
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Mohammadreza Akbari and Robert McClelland
The purpose of this research is to provide a systematic insight into corporate social responsibility (CSR) and corporate citizenship (CC) in supply chain development, by analyzing…
Abstract
Purpose
The purpose of this research is to provide a systematic insight into corporate social responsibility (CSR) and corporate citizenship (CC) in supply chain development, by analyzing the current literature, contemporary concepts, data and gaps for future discipline research.
Design/methodology/approach
This research identifies information from existing academic journals and investigates research designs and methods, data analysis techniques, industry involvement and geographic locations. Information regarding university affiliation, publishers, authors, year of publication is also documented. A collection of online databases from 2001 to 2018 were explored, using the keywords “corporate social responsibility”, “corporate citizenship” and “supply chain” in their title and abstract, to deliver an inclusive listing of journal articles in this discipline area. Based on this approach, a total of 164 articles were found, and information on a chain of variables was collected.
Findings
There has been visible growth in published articles over the last 18 years regarding supply chain sustainability, CSR and CC. Analysis of the data collected shows that only five literature reviews have been published in this area. Further, key findings include 41% of publications were narrowly focused on four sectors of industry, leaving gaps in the research. 85% centered on the survey and conceptual model, leaving an additional gap for future research. Finally, developing and developed nation status should be delineated, researched and analyzed based on further segmentation of the industry by region.
Research limitations/implications
This research is limited to reviewing only academic and professional articles available from Emerald, Elsevier, Wiley, Sage, Taylor and Francis, Springer, Scopus, JSTOR and EBSCO containing the words “corporate social responsibility”, “corporate citizenship” and “supply chain” in the title and abstract.
Originality/value
This assessment provides an enhanced appreciation of the current practices of current research and offers further directions within the CSR and CC in supply chain sustainable development.
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