Effect of infiltrant-related parameters on mechanical performance for 3DP technology

2020 ◽  
Vol 26 (9) ◽  
pp. 1647-1656
Author(s):  
Weiwei Wu ◽  
Zhouzhou Wang ◽  
Shuang Ding ◽  
Aiping Song ◽  
Dejia Zhu

Purpose The effects of infiltrant-related factors during post-processing on mechanical performance are fully considered for three-dimensional printing (3DP) technology. The factors contain infiltrant type, infiltrating means, infiltrating frequency and time interval of infiltrating. Design/methodology/approach A series of printing experiments are conducted and the parts are processed with different conditions by considering the above mentioned four parameters. Then the mechanical performances of the parts are tested from both macroscopic and microscopic papers. In the macroscopic view, the compressive strength of each printed part is measured by the materials testing machine – Instron 3367. In the microscopic view, scanning electron microscope and energy dispersion spectrum are used to obtain microstructure images and element content results. The pore size distributions of the parts are measured further to illustrate that if the particles are bound tightly by infiltrant. Then, partial least square (PLS) is used to conduct the analysis of the influencing factors, which can solve the small-sample problem well. The regression analysis and the influencing degree of each factor are explored further. Findings The experimental results show that commercial infiltrant has an outstanding performance than other super glues. The infiltrating action will own higher compressive strength than the brushing action. The higher infiltrating frequency and inconsistent infiltrating time interval will contribute to better mechanical performance. The PLS analysis shows that the most important factor is the infiltrating method. When compare the fitted value with the actual value, it is clear that when the compressive strength is higher, the fitting error will be smaller. Practical implications The research will have extensive applicability and practical significance for powder-based additive manufacturing. Originality/value The impact of the infiltrating-related post-processing on the performance of 3DP technology is easy to be ignored, which is fully taken into consideration in this paper. Both macroscopic and microscopic methods are conducted to explore, which can better explain the mechanical performance of the parts. Furthermore, as a small-sample method, PLS is used for influencing factors analysis. The variable importance in the projection index can explain the influencing degree of each parameter.

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hilda Monoarfa ◽  
Agus Rahayu ◽  
Fitranty Adirestuty ◽  
Rizuwan Abu Karim ◽  
Azlin Zanariah Bahtar ◽  
...  

Purpose The purpose of this study is to find out the level of influence of Islamic attributes and pull motivation to the satisfaction of Muslim tourists visiting Indonesia. Furthermore, this study may reveal where variables have a strong influence on the variable satisfaction of Muslim tourists. In addition, this study also wanted to know if Islamic attributes can influence the satisfaction of Muslim tourists with pull motivation as a moderating variable. Design/methodology/approach Using quantitative methods, this study analyzed the results of questionnaires that have been distributed to 200 Muslim tourist respondents who have visited Indonesia. To declare the hypotheses, the collected data were analyzed with structural equation modeling-partial least square using SmartPLS application version 3.2.7. Findings From this study, it was discovered that pull motivation has more effect on the satisfaction of Muslim tourists visiting Indonesia. Other results showed that both Islamic attributes and pull motivation simultaneously affect the satisfaction of Muslim tourists. Furthermore, Islamic attributes can affect pull motivation and pull motivation can also become an intermediary variable in bridging the impact of Islamic attributes on the satisfaction of Muslim tourists. Research limitations/implications The limitations of this study include the relatively small sample used and not yet taking foreign tourists as respondents. Besides that, you can also add several variables to complement this research in the future either as an intervening variable or a mediator variable. Practical implications To increase the satisfaction of Muslim tourists traveling to Indonesia, policymakers in Indonesia must further improve the facilities of the pull motivation aspect such as the cleanliness of tourist attractions, exotic locations and hygienic shopping centers. In addition, aspects of Islamic attributes must also be updated, such as aspects of adequate worship facilities and tourist attractions that apply the concept of halal for Muslims. Originality/value The originality of this study on the pull motivation variable as an intervening variable and adding the Islamic attribute variable in the case of Muslim tourist satisfaction.


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hussein-Elhakim Al Issa

PurposeThis paper aims to examine the effect of financial bootstrapping strategies (FBS) and strategic improvisation (SI) on business performance (BP). The study enriches our understanding of the contributions of bootstrapping and improvisation strategies toward resource-constrained small businesses during real economic downturns and crises. The potential moderating effect of SI on the relationship between FBS and its dimensions and performance were also examined.Design/methodology/approachUsing the convenience snowball sampling technique, data were collected from entrepreneurs in Tripoli, Libya. Structural equation modeling by means of partial least square bootstrapping resampling was used for the hypotheses testing of the 147 useable responses.FindingsStatistically significant positive relationships were found in the direct relationships between bootstrapping and improvisation with performance. However, there was no significant association found between the delaying payment related bootstrapping and the owner-related bootstrapping with performance. The moderating effect of improvisation had a significant relationship between bootstrapping as an aggregate construct and its dimensions and performance.Research limitations/implicationsDue to the cross-sectional nature of this study which used a small sample that was randomly selected, generalization to the entire population of business ventures should be made with caution.Practical implicationsThe negative moderation effect of improvisation on FBS-BP association suggests that entrepreneurs need to be careful in balancing the two strategies so that efforts are no wasted.Originality/valueWhile business performance has been studied in various organizations, its examination with financial bootstrapping strategies as a predictor and strategic improvisation as a moderator contribute nascent theoretical insights.


2019 ◽  
Vol 25 (3) ◽  
pp. 271-286 ◽  
Author(s):  
Kristi N. Lavigne ◽  
Victoria L. Whitaker ◽  
Dustin K. Jundt ◽  
Mindy K. Shoss

Purpose The purpose of this paper is to examine the relationship between job insecurity and adaptive performance (AP), contingent on changes to core work tasks, which we position as a situational cue to employees regarding important work behaviors. Design/methodology/approach Employees and their supervisors were invited to participate in the study. Supervisors were asked to provide ratings of employees’ AP and changes to core tasks; employees reported on job insecurity. Findings As predicted, changes to core tasks moderated the relationship between job insecurity and AP. Job insecurity was negatively related to AP for those experiencing low levels of change, but was not related to AP for those experiencing high levels of change. Counter to expectations, no main effect of job insecurity was found. Research limitations/implications This study employed a fairly small sample of workers from two organizations, which could limit generalizability. Practical implications The study identifies changes to core tasks as a boundary condition for the job insecurity–AP relationship. Findings suggest that organizations may not observe deleterious consequences of job insecurity on AP when changes to core tasks are high. Originality/value Few researchers have examined boundary conditions of the impact of job insecurity on AP. Furthermore, inconsistent findings regarding the link between job insecurity and AP have emerged. This study fills the gap and expands upon previous research by examining changes to core tasks as a condition under which job insecurity does not pose an issue for AP.


2019 ◽  
Vol 31 (4) ◽  
pp. 532-554 ◽  
Author(s):  
Tommy Lau ◽  
Man Lai Cheung ◽  
Guilherme D. Pires ◽  
Carol Chan

Purpose The abolishment of the wine tax in Hong Kong has led to increased wine consumption and increased demand for wine-related professionals, such as sommeliers. Yet the importance of sommeliers’ value-adding performance in the context of upscale Chinese restaurants has not been examined. To address this gap, the SERVQUAL framework is adopted to examine the influence of sommeliers’ service quality (SQ) on customer satisfaction (CS) and loyalty in the context of upscale Chinese restaurants in Hong Kong. Design/methodology/approach The survey method is used to collect data from 302 units of the population of interest, partial least square-structural equation modelling (PLS-SEM) is used to test the links between constructs. Findings Four of the seven dimensions of sommeliers’ service quality, namely, empathy, tangibles, credibility and assurance, have a significant positive impact on customer satisfaction and customer loyalty, whereas the impact of perceived value and responsiveness on customer satisfaction and customer loyalty is positive but only marginally significant. Reliability has a weak and non-significant impact on customer satisfaction and customer loyalty. Research limitations/implications Examining a small number of upscale Chinese restaurants in Hong Kong limits generalisation of the findings to other contexts. Replication of the research in different contexts will enhance generalizability. In terms of implications, the discussion highlights the importance of sommeliers’ service performance on customers’ SQ perceptions SQ, CS and loyalty, all of which are important variables for restaurateurs. Originality/value To the best of the authors’ knowledge, this is the first study of the influence of the quality of sommelier’s SQ on CS and loyalty in upscale Chinese restaurants in Hong Kong. Given the lack of attention to this service role in the literature, the study contributes theory from which further understanding can develop.


2018 ◽  
Vol 19 (4) ◽  
pp. 608-625 ◽  
Author(s):  
Amel Kouaib ◽  
Anis Jarboui ◽  
Khaireddine Mouakhar

Purpose The purpose of this paper is to focus on the moderating effect of mandatory International Financial Reporting Standards (IFRS) adoption on the relationship between chief executive officer (CEO) experience/education and earnings management in European companies. Design/methodology/approach Data from a sample of 302 European firms listed on Stoxx Europe 600 index and 596 CEOs from 2000 to 2014 are used to test the moderation model using moderation regression analysis. Findings Evidence reveals that CEO’s accounting-based attributes are negatively associated with accruals-based earnings management and positively associated with real earnings management (REM). Further, mandatory IFRS adoption significantly moderates the impact of CEO’s accounting-based traits on earnings-management activities. Research limitations/implications A small number of European firms were studied and, given the long study period, many firms with missing data were eliminated. To avoid a small sample size, countries with few observations were included, which leads to an uneven distribution between observations per country. Practical implications Findings from this paper can help: European firms to consider demographic traits when recruiting or promoting executives; the IASB to improve enforcement mechanisms and make IFRS implementation mandatory; and audit committees to effectively monitor REM. Originality/value This study is unique in providing European evidence for the moderating effect of mandatory IFRS adoption on the relationship between CEOs’ accounting experience/education and earnings management activities. This paper is also relevant as it addresses the effectiveness and efficiency of accounting literates.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Muhammad Farrukh ◽  
Ali Raza ◽  
Abdul Waheed

PurposeBased on the social network theory, this study investigates the impact of political ties on innovation performance. Besides, this study also tests a mediation role of absorptive capacity (AC) and a moderation role of technology turbulence.Design/methodology/approachA hypothetico-deductive approach is adopted to test the hypotheses. Data were collected from the small and medium enterprises (SMEs) managers/owners through a structured questionnaire.FindingsPartial least square structural equation modeling technique is used to analyze the hypothesized relationships; the findings showed that political ties significantly impact the innovation performance, and this relationship is mediated by AC. Moreover, technological turbulence moderated the relationship between political ties and innovation performance.Originality/valueDespite the increasing attention to the role of networking in improving innovation, there is a scarcity of studies on the role of political ties, AC and technology turbulence in fostering organizational innovation; thus, this study is a unique contribution to literature.


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Adil Khan ◽  
Mohd Yasir Arafat ◽  
Mohammad Khalid Azam

Purpose This study aims to investigate the influence of religiosity (intrinsic and extrinsic) and halal literacy on the intention of Muslim consumers to purchase halal branded food products in India. An extended version of the theory of planned behaviour (TPB) was used as a framework. Apart from religiosity and halal literacy, the influence of attitude, social norms and perceived behavioural control of halal on buying intention were also tested. Design/methodology/approach The study uses a survey design. The data were collected from 350 individual respondents, using a closed-ended, structured questionnaire. The quality of the measurement model has been assessed through reliability testing, factor loading, average variance extracted and Fornell-Larcker criterion. The test of hypotheses was conducted by performing the partial least square structural equation modelling. Findings The result of hypotheses testing shows that both intrinsic and extrinsic types of religiosities did not have a direct influence on buying intention. However, religiosity (extrinsic and intrinsic) and halal literacy have significant relationships with most of the antecedents of the intention of the TPB. In addition, both kinds of religiosities (extrinsic and intrinsic) and halal literacy had a significant indirect effect (through TPB antecedents) on buying intention. Originality/value Muslim population in India is one of the largest in the world, yet there is a lack of popular halal branded food products in the market. Nevertheless, few researchers have attempted to study the consumer behaviour of the Muslim population for halal products in India. A large amount of research work on halal food behaviour is from countries such as Malaysia and Indonesia, where the Muslim population is in the majority and halal brands are already popular. Further, this paper studies the impact of dimensions of religiosity, which has been overlooked by researchers studying the halal food purchasing behaviour. The study also explores the impact of halal literacy, an understudied construct in halal marketing literature. The present study is amongst the earliest empirical research based on Muslim consumers in India on the topic of halal branded food products.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hilary Omatule Onubi ◽  
Nor'Aini Yusof ◽  
Ahmad Sanusi Hassan ◽  
Ali Ahmed Salem Bahdad

PurposeThe coronavirus disease 2019 (COVID-19) pandemic has had major impacts on the performance of construction projects that have adopted social distancing measures. This study examines the effect of social distancing measures on project schedule performance through job reorganization on construction project sites.Design/methodology/approachResponses were obtained through a survey of 154 construction projects and analysed using the partial least square structural equation modeling (PLS-SEM) technique.FindingsThe findings established that social distancing has a negative effect on schedule performance, social distancing has a positive effect on job re-organization and job re-organization has a positive effect on schedule performance. Additionally, the results indicate that job re-organization partially mediates the relationship between social distancing and schedule performance, while social distancing moderates the relationship between job re-organization and schedule performance with low social distancing having the stronger positive effect.Originality/valueThis study contributes theoretically to a greater understanding of the impact of adopting COVID-19 safety measures such as social distancing on the schedule performance of construction projects. The study also shows how social distancing could lead to schedule performance through job reorganization.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Saarce Elsye Hatane ◽  
Bernard Emerson ◽  
Olievia Soesanto ◽  
Ruth Arum Gunawan ◽  
Hatane Semuel

PurposeThe purpose of this study is to discover the impact of work–life balance on the intention to pursue accounting careers through accounting career image.Design/methodology/approachThe study managed to collect 693 closed questionnaires, using the five-point Likert Scale, from accounting students in several universities in Java, Sulawesi and Kalimantan, as the three most densely populated islands in Indonesia. The research model is analysed using partial least square method as a part of structural equation modelling.FindingsThere are positive and significant influences between work–life balance and the intention to pursue accounting career when supported by accounting career image. The positive perception of accounting career image motivates accounting students to pursue accounting careers. Accounting students argue that attaining a balance between work and personal life can improve positive perceptions of accounting careers, which drive them to pursue a career in accounting. Work–life balance is an essential factor due to the fact that it can, directly and indirectly, affect the intention to pursue accounting careers. In addition, positive image of accounting profession is found to be able to strengthen the positive influence of the work–life balance to pursue accounting careers.Research limitations/implicationsFurther studies can continue along the line of this study as the intention to choose an accounting career can change from time to time. In addition, the generational difference may create a discrepancy in perception and orientation in choosing accounting careers. Therefore, future studies should consider a broader scope and more updated objects.Practical implicationsThe findings suggest that working experience is an essential part for accounting students in choosing accounting careers, and so higher education institutions need to consider including field work-practice in their curriculums. Companies are also expected to prioritise work–life balance since it will motivate accounting students to choose an accounting career.Originality/valueThis study investigates the link between work–life balance and decisions to pursue accounting careers through accounting students' perceptions in Indonesia. This study combines the influences of work–life balance and accounting career image on the intention to pursue accounting careers in one model, in which accounting career image is the mediating variable in the indirect link of work–life balance.


Kybernetes ◽  
2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Imane Beqqali Hassani ◽  
Razane Chroqui ◽  
Chafik Okar ◽  
Mohamed Talea ◽  
Ahmed Ouiddad

Purpose The purpose of this paper is to evaluate the impact of corporate culture (CC) and hedonic motivation (HM) on the adoption of an information system (IS) inside a Moroccan company. To do so, the authors have combined and merged the “unified theory of acceptance and use of technology 2” along with the “Nguyen and Aoyama’s model” that covers the subject of CC. Later, the authors tested the research model within a Moroccan company. Design/methodology/approach In the present work, the authors used a quantitative analysis approach. Survey data were collected through oral interviews and analysis was performed based on the “partial least square” method, over a 94 sample of direct IS users. Findings The findings of the present investigation demonstrate the reliability and the validity of the established measurement model. Concerning the structural model, results support all hypotheses but with different effect size. The conclusion that can be extracted from this study is that CC and HM are important factors in the adoption process within the Moroccan firm. Originality/value This study enhances the understanding of the major factors affecting the adoption of an IS in a developing country. While several studies on adoption have been conducted, this study’s originality and contribution lays in the examination of the rarely evaluated factors: HM and CC.


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