Gerard Cummins and Marc P.Y. Desmulliez
The purpose of this paper is to present an exhaustive review of research studies and activities in the inkjet printing of conductive materials.
Abstract
Purpose
The purpose of this paper is to present an exhaustive review of research studies and activities in the inkjet printing of conductive materials.
Design/methodology/approach
This paper gives a detailed literature survey of research carried out in inkjet printing of conductive materials.
Findings
This article explains the inkjet printing process and the various types of conductive inks. It then examines the various factors that affect the quality of inkjet printed interconnects such as printing parameters, materials and substrate treatments. Methods of characterising both the inkjet printing process and the electrical properties of printed conductive materials are also presented. Finally relevant applications of this technology are described.
Originality/value
Inkjet printing is currently one of the cheapest direct write techniques for manufacturing. The use of this technique in electronic manufacturing, where interconnects and other conductive features are required is an area of increasing relevance to the fields of electronics manufacturing, packaging and assembly. This review paper would therefore be of great value and interest to this community.
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Hybrid ventures are on the rise, both in practice and in scholarly circles. Despite this momentum, there is a paucity of inter-organizational research on hybrid ventures. Such…
Abstract
Hybrid ventures are on the rise, both in practice and in scholarly circles. Despite this momentum, there is a paucity of inter-organizational research on hybrid ventures. Such research is necessary to substantiate a prevailing belief about hybrid entrepreneurs: namely, that they are actively changing the world. Highlighting three “innovations” that hybrid entrepreneurs and their ventures bring to organizational fields – (1) a hybrid identity, (2) a hybrid organizational form, and (3) a hybrid logic – this chapter identifies inter-organizational research questions and scholarly conversations that may be capable of evaluating whether hybrid entrepreneurs are indeed “agents of change.”
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The purpose of this paper is to present theoretical investigations of the static performance characteristics of orifice compensated symmetric hole‐entry hybrid journal bearing…
Abstract
Purpose
The purpose of this paper is to present theoretical investigations of the static performance characteristics of orifice compensated symmetric hole‐entry hybrid journal bearing considering the combined influence of rise in temperature and non‐Newtonian behavior of the lubricant.
Design/methodology/approach
The thermohydrostatic (THS) rheological solution of a hole‐entry hybrid journal bearing system requires the simultaneous solution of Reynolds equation, energy equation and conduction equation along with appropriate boundary conditions. In the present study an iterative numerical solution scheme is used to establish pressure and temperature fields in the lubricant fluid‐film.
Findings
It is found that there is an increase in the oil requirement for a hybrid journal bearing with the specified operating and geometric parameters, when the viscosity of the lubricant decreases due to the rise in temperature and non‐Newtonian behavior of the lubricant.
Originality/value
The available literature concerning the orifice compensated symmetric hybrid/hydrodynamic journal bearings indicates that the thermal effects together with non‐Newtonian behavior of lubricant due to additives mixed in the lubricants have been ignored in the analysis so as to obviate the mathematical complexity.
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H.C. Garg and Vijay Kumar
The purpose of this paper is to describe the static performance characteristics of orifice compensated hole-entry hybrid journal bearing considering the combined influence of rise…
Abstract
Purpose
The purpose of this paper is to describe the static performance characteristics of orifice compensated hole-entry hybrid journal bearing considering the combined influence of rise in temperature and non-Newtonian behavior of the lubricant. The required governing equations have been solved using the finite element method and a suitable iterative technique. The non-Newtonian lubricant has been assumed to follow the cubic shear stress law. The thermohydrostatic (THS) rheological performance of asymmetric hole-entry hybrid journal bearing configurations are studied. The computed results indicate that variation of viscosity due rise in temperature and non-Newtonian behavior of the lubricant affects the performance of asymmetric hole-entry hybrid journal bearing system quite significantly.
Design/methodology/approach
The THS rheological solution of a hole-entry hybrid journal bearing system requires the simultaneous solution of Reynolds equation, 3D energy equation and 3D conduction equation along with appropriate boundary conditions. In present study an iterative numerical solution scheme is used to establish pressure and temperature fields in the lubricant fluid-film.
Findings
The computed results indicate that variation of viscosity due rise in temperature and non-Newtonian behavior of the lubricant affects the performance of asymmetric hole-entry hybrid journal bearing system quite significantly.
Originality/value
The available literature concerning the orifice compensated asymmetric hole-entry hybrid journal bearings indicates that the thermal effects together with non-Newtonian behavior of lubricant due to additives mixed in the lubricants have been ignored in the analysis so as to obviate the mathematical complexity. The bearing performance characteristics have been presented considering the combined influence of rise in temperature and non-Newtonian behavior of the lubricant for asymmetric bearing configurations.
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H.C. Garg and Vijay Kumar
This paper aims to investigate the effect of plugging of holes on the static performance characteristics of a constant flow valve compensated hole‐entry hybrid journal bearing…
Abstract
Purpose
This paper aims to investigate the effect of plugging of holes on the static performance characteristics of a constant flow valve compensated hole‐entry hybrid journal bearing system operating with Newtonian and non‐Newtonian lubricants. The analysis considers the generalized Reynolds equation governing the flow of lubricant having variable viscosity in the clearance space and equation of flow of lubricant through constant flow valve restrictor. The non‐Newtonian lubricant is assumed to follow the power law. The performance characteristics are computed for the two values of power law index (n=1.0 and 0.566). The computed results indicate that the blockage of holes during operation will not be the likely causes for the imminent failure of a well‐designed non‐recessed hole‐entry hybrid journal bearing.
Design/methodology/approach
Finite element method has been used to solve generalized Reynolds equation governing the flow of lubricant having variable viscosity in the clearance space and equation of flow of lubricant through constant flow valve restrictor.
Findings
The computed results indicate that the blockage of holes during operation will not be the likely causes for the imminent failure of a well‐designed non‐recessed hole‐entry hybrid journal bearing. The bearing configuration with plugged holes provides sufficient fluid film thickness and low power requirement as less lubricant is required to be pumped in the bearing.
Originality/value
To the best of the author's knowledge, no study which considers the influence of plugging of holes on the static performance characteristics of a constant flow valve compensated hole‐entry hybrid journal bearing system operating with Newtonian and non‐Newtonian lubricant is yet available in the literature.
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This paper aims to systematically review the field of non-financial reporting (NFR) in hybrid organizations, focusing on state-owned enterprises, third-sector organizations and…
Abstract
Purpose
This paper aims to systematically review the field of non-financial reporting (NFR) in hybrid organizations, focusing on state-owned enterprises, third-sector organizations and public–private partnerships. This is a timely attempt to identify the state of the art in the literature and outline the future research agenda. The paper answers two research questions: RQ1. What can be learned about NFR in hybrid organizations from the existing literature? RQ2. What are the future avenues for research on the topic?
Design/methodology/approach
A systematic literature review method was applied in this paper to summarize evidence from extant literature on NFR in hybrid organizations. The Scopus and Web of Science Core Collection databases were used to locate 92 articles for the review.
Findings
Recent years have witnessed a sharp increase in the number of articles on the topic. Regarding the implications of NFR for hybrid characteristics, NFR has some potential to strengthen the influence of non-market (i.e. state, community and social) logics in hybrid organizations. However, this potential may be limited due to the effect of market logics and the tensions that arise between the multiple logics in hybrid organizations. Regarding the implications of hybrid characteristics for NFR, these characteristics can not only affect the extent, the quality, the likelihood and the institutionalization of NFR but also result in the development of new NFR frameworks. The review calls for more research on the implications of NFR for multiple institutional logics and the implications of these logics for NFR in hybrid organizations.
Originality/value
To the best of the authors’ knowledge, this is the first literature review that mobilizes insights from hybridity research to analyze NFR literature on diverse hybrid organizations.
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Lode De Waele, Tobias Polzer, Arjen van Witteloostuijn and Liselore Berghman
Numerous of today's public sector organisations (PSOs) can be characterised as hybrids. Hybridity is caused by different (at times conflicting) demands that stem from the…
Abstract
Purpose
Numerous of today's public sector organisations (PSOs) can be characterised as hybrids. Hybridity is caused by different (at times conflicting) demands that stem from the institutional environment, which is likely to affect performance measurement in these organisations. This paper focuses on the relationship between hybridity and organisational performance, which has so far not been studied in detail.
Design/methodology/approach
Based on a literature review (final sample of 56 articles), the authors systematise performance dimensions alongside the pillars “economy”, “efficiency”, “effectiveness” and “(social) equity”. The article summarises results in a framework for measuring performance in hybrid PSOs. The authors outline strategies as to how public managers can tailor frameworks to the requirements and idiosyncrasies of organisations.
Findings
Since hybrid PSOs combine logics from different administrative models (Weberian bureaucracy, market-capitalism and democracy), so need their organisational performance measurement systems. Potential synergies from and frictions between the different performance dimensions related to the four pillars are discussed.
Originality/value
This is the first literature review on performance dimensions and their application in hybrid PSOs. The distilled “hybrid performance measurement framework” can be scrutinised and further refined in future research.
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Lode De Waele, Liselore Berghman and Paul Matthyssens
The discussion about public sector performance is still present today, despite the profound research that has already tried to address this subject. Furthermore, theory links…
Abstract
Purpose
The discussion about public sector performance is still present today, despite the profound research that has already tried to address this subject. Furthermore, theory links negative effects on organizational performance with increased levels of organizational complexity. However, literature thus far did not succeed to put forward a successful theory that explains why and how public organizations became increasingly complex. To answer this question, we argue that increased organizational complexity can be explained by viewing public organizations as the hybrid result of different institutional logics, which are shaped by various management views. However, former research mainly concentrated on the separate study of management views such as traditional public management (TPM), NPM, and post-NPM. Although appealing, research that approaches hybridity from this perspective is fairly limited.
Methodology/approach
We conducted a literature review in which we studied 80 articles about traditional public management, NPM, and post-NPM.
Findings
We found that these management views essentially differ on the base of three fault lines, depending on the level of the organizational culture. These fault lines, according to the management view, together result in nine dimensions. By combing dimensions of the different management views, we argue that a public organization becomes hybrid. Furthermore, in line with findings of contingency theory, we explain the level of hybridity might depend on the level of tight coupling for a given organization. Finally, we developed propositions that explain hybridity as the result of isomorphic forces, organizational change, and organizational resistance to change and that link hybridization with processes of selective coupling.
Originality/value
The value of this chapter lies in its real-life applicability.
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Rajneesh Kumar and Suresh Verma
In the present scenario of high-speed machines, the use of non-circular hole-entry bearing configuration, i.e. two-lobe, multi-lobe, lemon bore, etc., has becomes unavoidable, as…
Abstract
Purpose
In the present scenario of high-speed machines, the use of non-circular hole-entry bearing configuration, i.e. two-lobe, multi-lobe, lemon bore, etc., has becomes unavoidable, as the journal bearings with non-circular configurations provide better stability at high operating speed and heavy dynamic loading. Further, this research aims to show that the presence of micro particles in the lubricants greatly affects performance of the bearings, as their presence leads to non-Newtonian behaviors of the lubricant. Therefore, to consider the effect of these micro particles, the lubricant is modeled as a micropolar lubricant. The present work analyzes the effect of these micropolar lubricants on the performance of hole-entry circular and non-circular (two-lobe) hybrid journal bearings compensated with constant flow valve restrictor and compares with that of Newtonian lubricants.
Design/methodology/approach
The modified Reynolds equation governing the laminar flow of iso-viscous, incompressible micropolar lubricant in the clearance space of a journal bearing system has been solved using finite element method and appropriate boundary conditions. Further, a comparative analysis between circular and non-circular (two-lobe) hybrid journal bearing compensated with constant flow valve restrictor operating with Newtonian and micropolar lubricant has been presented.
Findings
The numerically simulated results reveal that the non-circular bearing configuration provides better performance vis-à-vis the circular bearing configuration. Further, the increase in the micropolar effect of the lubricant enhances the performance of circular and the non-circular bearing configurations compared with the Newtonian lubricant. Also, in the case of the non-circular bearing configuration with an offset factor (δ = 1.5), the bearing performance improved compared with (δ = 1.25).
Originality/value
Many research studies have been done in the area of non-circular hybrid journal bearing with Newtonian lubricants with different types of restrictors, but the non-circular hole-entry constant flow valve-compensated hybrid journal bearing operating with the micropolar lubricant has not been analyzed. Therefore, in the present work, an effort has been made to fill this research gap.
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Georg Reischauer and Johanna Mair
We are currently witnessing a new wave of the digital economy. A prime example is the sharing economy where an organization operates a platform for its online community, the sum…
Abstract
We are currently witnessing a new wave of the digital economy. A prime example is the sharing economy where an organization operates a platform for its online community, the sum of individuals who interact to exchange goods and services. The sharing economy blurs several boundaries of economic life – a fact that extant theory on platform organizing has yet paid little attention. We argue to consider two aspects of the sharing economy and revisit related theory to address this lacuna. First, we revive the concept of hybrid community to denote a variant of an online community that mirrors the boundary-blurring nature of the sharing economy. In a hybrid community, individuals interact both online and offline (instead of only online) and consume as well as produce. Second, we revisit the range of strategic responses suggested by extant literature to minimize the dependence of a platform organization on its hybrid community and show that the sharing economy requires management research to adapt and potentially recast existing claims.