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1 – 4 of 4Amirhossein Termebaf Shirazi, Zahra Zamani Miandashti and Seyed Alireza Momeni
Additive manufacturing offers the ability to produce complex, flexible structures from materials like thermoplastic polyurethane (TPU) for energy-absorption applications. However…
Abstract
Purpose
Additive manufacturing offers the ability to produce complex, flexible structures from materials like thermoplastic polyurethane (TPU) for energy-absorption applications. However, selecting optimal structural parameters to achieve desired mechanical responses remains a challenge. This study aims to investigate the influence of key structural characteristics on the energy absorption and dissipation behavior and the deformation process of 3D-printed flexible TPU line-oriented structures.
Design/methodology/approach
Samples with varying line orientations and infill densities were fabricated using material extrusion and subjected to quasi-static compression tests. The design of experiments methodology explored the significance of design variables and their interaction effects on energy absorption and dissipation.
Findings
The results revealed a statistically significant interaction between infill density and orientation, highlighting their combined influence; however, the effect was less pronounced compared to infill density alone. For low-density structures, changing the orientation from 0°/90° to 45°/−45° and increasing infill density enhanced energy absorption and dissipation, while high-density structures exhibited unique energy absorption behavior influenced by deformation patterns and heterogeneity levels. This study facilitates the prediction of mechanical responses and selection of suitable TPU line-oriented printed parts for energy absorbing applications.
Originality/value
To the best of the authors’ knowledge, the present work have investigated for the first time the energy-related responses of flexible line-oriented TPU structures highlighting the distinction between the low and high density structures.
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Asef Karimi, Iraj Malekmohamadi, Mahmoud Ahmadpour Daryani and Ahmad Rezvanfar
This study seeks to build a conceptual model of agricultural extension intrapreneurship that discusses the concept and phenomenon of intrapreneurship as well as its prerequisites…
Abstract
Purpose
This study seeks to build a conceptual model of agricultural extension intrapreneurship that discusses the concept and phenomenon of intrapreneurship as well as its prerequisites and outcomes. The proposed model is intended to depict the main factors that affect the phenomena of intrapreneurship within the agricultural extension organizations and the impact of intrapreneurship on agricultural extension organizational outcomes, as well as factors influencing its continuous outcomes.
Design/methodology/approach
The paper identifies and describes the existence and past literature on prerequisites, phenomena and outcomes of intrapreneurship in organizations as a basis for analysis and developing an appropriate model of agricultural extension intrapreneurship. This is a conceptual paper selecting targeted scholarly works that provide support for the proposed model.
Findings
The paper presents a model of Iranian agricultural extension in which the organizational, behavioral and environmental factors influence intrapreneurship and the construct of intrapreneurship influences organizational outcomes. The paper provides a comprehensive analysis that develops an existing model for a systematic approach to the agricultural extension intrapreneurial process. The proposed model of agricultural extension intrapreneurship joins a growing number of works that explore how intrapreneurship contributes to organizational outcomes in an Iranian agricultural extension organization. It is suggested that the framework may help scholars identify potential strategies of intrapreneurial activity that could help extension organization position intrapreneurship as a vehicle for improving organizational outcomes.
Originality/value
Based on this exploration, new insights about agricultural extension intrapreneurship are developed, practical implications for agricultural extension intrapreneurs on how to approach agricultural extension entrepreneurship more systematically and effectively are presented and opportunities for further research are identified.
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Leili Tapak, Yadollah Hamidi and Zahra Toosi
Learning organization (LO) concept has received much attention in the last decades. The purpose of an LO is to proactively shape its future by fostering a culture of continuous…
Abstract
Purpose
Learning organization (LO) concept has received much attention in the last decades. The purpose of an LO is to proactively shape its future by fostering a culture of continuous learning among its members. This approach empowers the organization to adapt, evolve and innovate, aligning with the needs and aspirations of both internal and external stakeholders. As a result, the assessment of an organization’s LO level, whether strong or weak, becomes a matter of significance. This study aims to use Senge’s LO Questionnaire (SLOQ) in conjunction with latent profile analysis (LPA) to identify latent classes within the organization. This approach seeks to enhance the organization‘s learning potential and facilitate its evolution.
Design/methodology/approach
This research was a cross-sectional study conducted at Hamadan University of Medical Sciences, Iran. The statistical population consisted of 451 managers and employees across seven departments based at the university headquarters. The sample included 295 individuals, and data was collected using the SLOQ.
Findings
The LPA has shown an excellent accuracy (97%) in identifying SLOQ cut-off points (three classes of good, moderate and low). Most of the participants are considered as a moderate LO (55.9%), which implies the possibility of improving learning, especially enhancing “common vision” and “systemic thinking.” Also, individuals belonging to the high-class category were more likely to be male and hold associate degree than individuals in other categories.
Research limitations/implications
This study depends on self-report, and different perceptions of questions can cause percept bias. Another limitation is about the nature of this research, which is cross-sectional, which may bring back causality among variables. The other is only three demographic variables have been considered, and it is necessary to pay attention to other influential variables in future studies.
Originality/value
The originality of this study lies in its use of the SLOQ in combination with LPA to identify latent classes in an organization to improve learning potentials.
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The study addresses four vital issues in the area of organizational learning (OL) literature. The purpose of this study is to elucidate the following: definition of OL, accepted…
Abstract
Purpose
The study addresses four vital issues in the area of organizational learning (OL) literature. The purpose of this study is to elucidate the following: definition of OL, accepted dimensions of OL, antecedents and consequences of OL and the link between OL and performance and innovation.
Design/methodology/approach
The study presents a systematic literature review and concept analysis of OL, along with a focused discussion on the association of OL with performance and innovation.
Findings
After articulating multiple perspectives, OL can be defined as the process by which organizational knowledge base and insights are developed via associations between past actions, the effect of those and future operations. OL has two widely acknowledged dimensions, namely, exploratory learning and exploitative learning. Moreover, the study presented a conceptual analysis of OL along with a comprehensive framework for precursors and outcomes of OL.
Originality/value
This study probes the issues and the pattern in the literature of OL domain. The presented conceptual analysis gives direction to the future endeavours of researchers in the field of OL.
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