Effect of aligning conductive particles on the piezoresistivity of composites

Sensor Review ◽  
2015 ◽  
Vol 35 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Huigang Xiao ◽  
Min Liu ◽  
Jinbao Jiang
Keyword(s):  
Theoretical Model ◽  
Design Methodology ◽  
Strain Sensor ◽  
Conductive Network ◽  
New Approach ◽  
Content Type ◽  
The People ◽  
Proposed Model ◽  
Conductive Particles ◽  
External Strain

Purpose – The purpose of this paper is to study the effect of alignment of conductive particles on the piezoresistivity of composite based on a theoretical model. The piezoresistivity of composite is associated with the characteristics of conductive network formed by the conductive particles distributed in the composite, which can be changed through aligning the conductive particles. Design/methodology/approach – The orientations of the tunnel resistors formed by each two adjacent conductive particles are dependent on the aligned level of the conductive particles, and different orientations induce different deformations for a tunnel resistor under external strain, which determines the piezoresistivity of the composites. To investigate the resistance behavior of composites with various characteristics of conductive networks, a piezoresistivity model is developed in this paper by considering the aligned level of conductive particles. Findings – The results obtained from the proposed piezoresistivity model indicate that the sensitivity and stability of composites can be enhanced through aligning the conductive particles. Also, the piezoresistivity of composites filled with randomly distributed conductive particles is isotropic, and it turns to be anisotropic when the conductive particles are aligned. Originality/value – The change and its mechanism of the piezoresistivity upon the aligned level of conductive particles have been pointed out in this paper based on the proposed model. The achievement of this paper will help the people understand, predict and optimize the piezoresistivity of composites, and provide a new approach to design a strain sensor based on the piezoresistivity.

Knowledge management implementation in a library

VINE ◽  
2014 ◽  
Vol 44 (3) ◽  
pp. 322-344 ◽  
Author(s):  
Naresh Kumar Agarwal ◽  
Md Anwarul Islam
Keyword(s):  
Information Technology ◽  
Knowledge Management ◽  
Theoretical Model ◽  
Design Methodology ◽  
It Adoption ◽  
Primary Research ◽  
Content Type ◽  
Proposed Model ◽  
One Stop ◽  
Single Set

Purpose – The purpose of the study is to investigate the tools/technologies that would be of value to libraries as they implement knowledge management (KM) and to map these to different phases of the KM cycle. Design/methodology/approach – Models of the KM cycle and theories related to information technology (IT) adoption were reviewed, along with tools/technologies for collaboration and KM. A theoretical “model for KM tools and their adoption in libraries” was arrived at. Findings – It was found that there is no single set of tools that would be applicable to everyone or across libraries. In addition, technology is just an enabler for KM. Therefore, a comprehensive set of tools, both physical and technological, is presented. Research limitations/implications – The paper provides a practical, one-stop place for librarians to decide on KM methods and tools based on their unique environments. The proposed model for KM tools should guide further research. Originality/value – Most studies on KM have been outside libraries. Of all KM tool studies, there is a lack of a single paper that puts together the majority of tools/technologies (whether IT or non-IT-based) that would help library staff make informed decisions. The primary research contribution is a model for KM tools and their adoption in libraries.

Exploring the interface of relationship marketing and export performance

2019 ◽  
Vol 21 (2) ◽  
pp. 126-148
Author(s):  
Abdel Hafiez Ali Hasaballah ◽  
Omer Faruk Genc ◽  
Osman Bin Mohamad ◽  
Zafar U. Ahmed
Keyword(s):  
Theoretical Model ◽  
Relationship Marketing ◽  
Design Methodology ◽  
Export Performance ◽  
Future Research ◽  
Comprehensive Model ◽  
Content Type ◽  
Proposed Model ◽  
Theoretical Paper ◽  
Practical Implications

Purpose The purpose of this study is to develop a comprehensive model that explains the influence of different relational variables on export performance and the interaction between those relational variables. Design/methodology/approach This is a theoretical paper building upon the relational variables and export performance literatures. Findings A theoretical model was developed based on the existing studies and findings. In the proposed model, relational outcome variables mediate the effect of relational contextual variables on export performance. Research limitations/implications The model developed in this study opens new avenues for future research because it provides a different perspective on how relational variables interact with each other in terms of their impact on export performance. Practical implications Relational variables have great importance for firms’ export performance. This study provides a framework about how these variables affect export performance, which should be taken into consideration in firms’ strategies and decisions with regard to the relations with partners. Originality/value Despite the consensus about the importance of relational variables, the evidence is mixed with regard to the way they affect export performance. With the proposed model, this study aims to fill this gap by providing a framework that explains how relational variables interact with each other and how they affect export performance.

The basis for establishing one or more Europes

Kybernetes ◽  
2017 ◽  
Vol 46 (1) ◽  
pp. 17-37
Author(s):  
Jaime Gil Aluja
Keyword(s):  
Fuzzy Logic ◽  
Regional Development ◽  
Design Methodology ◽  
Harmonic Space ◽  
New Approach ◽  
Content Type ◽  
Common Space ◽  
Proposed Model ◽  
European Policies

Purpose This work aims to ask for the possibility to establish one or more Europes in a heterogeneous territory where the main goal is to create a common space. The use of a specific methodology will help us to know whether it is possible to apply general policies in the whole territory or it will be necessary to adapt them to a different group of spaces. Design/methodology/approach Taking into account the experts’ opinions, causality relationships, grouping processes and distances techniques can be obtained to get an overall view of different groups of areas where it will be possible to develop the specific policies successfully. Findings Theoretically, the proposed model using fuzzy logic in grouping processes presents significant results that contribute to the theory on regional development. Originality/value This paper provides a new approach to solve the territorial problem to apply the European policies. Introducing these techniques, one will be able to approach the different positions to the specific areas in Europe to create a peaceful and harmonic space of cohabitation.

Dynamizing intellectual capital through enablers and learning flows

2014 ◽  
Vol 114 (1) ◽  
pp. 2-20 ◽  
Author(s):  
M. Nancy Vargas ◽  
M. Begoña Lloria
Keyword(s):  
Theoretical Model ◽  
Organizational Performance ◽  
Intellectual Capital ◽  
Design Methodology ◽  
Content Type ◽  
Proposed Model ◽  
Close Relationship ◽  
And Performance ◽  
Intermediate Variables ◽  
Biotechnology Sector

Purpose – The main aim of this research is to relate intellectual capital (IC) and organizational performance through intermediate variables, enablers and learning flows. To this end, the paper defines a new theoretical model of relations and presents an empirical study to contrast the model. Design/methodology/approach – The proposed theoretical model is contrasted by means of a quantitative study of Spanish firms from the biotechnology sector. The statistical analysis applies a method based on variance using partial least squares. Findings – The theoretical model proposes a total of 15 relations, 13 of which are statistically significant, which demonstrates the close relationship between IC and performance using enablers and learning flows as intermediate variables. Originality/value – From the theoretical model proposed and its subsequent empirical contrast, the research shows the close relations that exist between areas of knowledge that traditionally appear separately in the literature. The proposed model thus allows us to explain and predict the dynamization of the components of IC due to enablers and learning flows, and the effect of these elements on organizational performance.

scholarly journals The concept of neutrality: a new approach

2019 ◽  
Vol 76 (1) ◽  
pp. 333-353 ◽  
Author(s):  
Stephen Macdonald ◽  
Briony Birdi
Keyword(s):  
Literature Review ◽  
Design Methodology ◽  
Information Science ◽  
Social Institutions ◽  
Future Research ◽  
Library And Information Science ◽  
New Approach ◽  
Content Type ◽  
Normative Framework ◽  
Contextual Awareness

Purpose Neutrality is a much debated value in library and information science (LIS). The “neutrality debate” is characterised by opinionated discussions in contrasting contexts. The purpose of this paper is to fill a gap in the literature by bringing these conceptions together holistically, with potential to deepen understanding of LIS neutrality. Design/methodology/approach First, a literature review identified conceptions of neutrality reported in the LIS literature. Second, seven phenomenographic interviews with LIS professionals were conducted across three professional sectors. To maximise variation, each sector comprised at least one interview with a professional of five or fewer years’ experience and one with ten or more years’ experience. Third, conceptions from the literature and interviews were compared for similarities and disparities. Findings In four conceptions, each were found in the literature and interviews. In the literature, these were labelled: “favourable”, “tacit value”, “social institutions” and “value-laden profession”, whilst in interviews they were labelled: “core value”, “subservient”, “ambivalent”, and “hidden values”. The study’s main finding notes the “ambivalent” conception in interviews is not captured by a largely polarised literature, which oversimplifies neutrality’s complexity. To accommodate this complexity, it is suggested that future research should look to reconcile perceptions from either side of the “neutral non-neutral divide” through an inclusive normative framework. Originality/value This study’s value lies in its descriptive methodology, which brings LIS neutrality together in a holistic framework. This framework brings a contextual awareness to LIS neutrality lacking in previous research. This awareness has the potential to change the tone of the LIS neutrality debate.

Development of insect repellent finish by a simple coacervation microencapsulation technique

2018 ◽  
Vol 30 (2) ◽  
pp. 152-158 ◽  
Author(s):  
Rachna Sharma ◽  
Alka Goel
Keyword(s):  
Essential Oils ◽  
Design Methodology ◽  
Insect Repellent ◽  
New Approach ◽  
Content Type ◽  
Eucalyptus Oil ◽  
Gum Acacia ◽  
Major Benefit ◽  
Natural Insecticide ◽  
Practical Implications

Purpose The paper focused onto the development of microcapsules by using two essential oils. It proposes the uses of eucalyptus oil and cedarwood oil as a natural insecticide. The purpose of this paper is to demonstrate the application of developed microcapsules to impart insect repellency on textile substrate. Design/methodology/approach The paper opted for an experimental study using two essential oils and gum in formations of microcapsules through a simple coaseravtion encapsulation technique. The developed solution was analyzed, including confirmation of size and structure through. Application of developed finish on substrate was also undertaken to prove better ability as repellent fabric. Findings The paper highlights useful invention of microencapsulated fabric developed with the combination of gum acacia and eucalyptus oil as core and shell material. The developed fabric has better ability to repel silverfish as compared to microencapsulated fabric developed with gum acacia (shell) and cedarwood oil (core). Research limitations/implications Due to the lack of time and less availability of essential oils, only two oils were used to test the insect repellent behavior. Practical implications This paper fulfills an identified need, it includes implications for the development of a very useful natural insecticide to repel silverfish (Lepisma saccharina) insect. This insect is a very common problem found in cloth wardrobes and bookshelves; it mainly attacks the fabric with cellulosic content and starch. Social implications Society will get major benefit of using these microencapsulated finished fabrics, which repel silverfish from their home and keep their clothing and books safe for longer period. The natural fragrance and medicinal benefits of these essential oils can never be ignored. Originality/value This study sets a new approach to repel insects like silverfish from the bookshelves and clothing wardrobes. A layer of insect repellent microencapsulated finished fabric can be added in these shelves and wardrobes. It is an eco-friendly approach of using natural essential oils instead of chemical insecticides.

A multi-manned assembly line balancing problem with classified teams: a new approach

2016 ◽  
Vol 36 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Hamid Yilmaz ◽  
Mustafa Yilmaz
Keyword(s):  
Design Methodology ◽  
Assembly Line ◽  
Assembly Line Balancing ◽  
Line Balancing ◽  
Test Problems ◽  
New Approach ◽  
Content Type ◽  
Line Test ◽  
Assembly Line Balancing Problem ◽  
First Time

Purpose – Within team-oriented approaches, tasks are assigned to teams before being assigned to workstations as a reality of industry. So it becomes clear, which workers assemble which tasks. Design/methodology/approach – Team numbers of the assembly line can increase with the number of tasks, but at the same time, due to physical situations of the stations, there will be limitations of maximum working team numbers in a station. For this purpose, heuristic assembly line balancing (ALB) procedure is used and mathematical model is developed for the problem. Findings – Well-known assembly line test problems widely used in the literature are solved to indicate the effectiveness and applicability of the proposed approach in practice. Originality/value – This paper draws attention to ALB problem in which workers have been assigned to teams in advance due to the need for specialized skills or equipment on the line for the first time.

Dynamic capabilities vs. innovation capability: are they related?

2014 ◽  
Vol 21 (3) ◽  
pp. 368-384 ◽  
Author(s):  
Lidija Breznik ◽  
Robert D. Hisrich
Keyword(s):  
Literature Review ◽  
Design Methodology ◽  
Dynamic Capabilities ◽  
Dynamic Capability ◽  
Future Research ◽  
Innovation Capability ◽  
New Approach ◽  
Content Type ◽  
New Research ◽  
The Relationship

Purpose – The purpose of this paper is to provide insights into the relationship between dynamic capabilities and innovation capabilities. It links dynamic capability with innovation capability and indicates the ways they can be related. Design/methodology/approach – The relationships between dynamic and innovation capability were investigated through a systematic literature review. Findings – The review indicates that common characteristics exist between of the both fields, which demonstrate six relationships. Additionally, findings show some inconsistencies and even contradictions. Originality/value – In this paper, the authors have compared dynamic capabilities, a relatively new approach in the field of strategic management, with innovation capabilities, a widely recognised crucial domain for sustained competitiveness. Since both areas address issues that are essential to today's environment, future research should seek to clarify both concepts, by undertaking some new research and developing comprehensive and unambiguous framework.

An M/M/C/K queueing system in an inventory routing problem considering congestion and response time for post-disaster humanitarian relief: a case study

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mahdieh Masoumi ◽  
Amir Aghsami ◽  
Mohammad Alipour-Vaezi ◽  
Fariborz Jolai ◽  
Behdad Esmailifar
Keyword(s):  
Sensitivity Analyses ◽  
Inventory Routing ◽  
Humanitarian Relief ◽  
Exact Methods ◽  
Routing Problem ◽  
Content Type ◽  
Inventory Routing Problem ◽  
The People ◽  
Proposed Model

PurposeDue to the randomness and unpredictability of many disasters, it is essential to be prepared to face difficult conditions after a disaster to reduce human casualties and meet the needs of the people. After the disaster, one of the most essential measures is to deliver relief supplies to those affected by the disaster. Therefore, this paper aims to assign demand points to the warehouses as well as routing their related relief vehicles after a disaster considering convergence in the border warehouses.Design/methodology/approachThis research proposes a multi-objective, multi-commodity and multi-period queueing-inventory-routing problem in which a queuing system has been applied to reduce the congestion in the borders of the affected zones. To show the validity of the proposed model, a small-size problem has been solved using exact methods. Moreover, to deal with the complexity of the problem, a metaheuristic algorithm has been utilized to solve the large dimensions of the problem. Finally, various sensitivity analyses have been performed to determine the effects of different parameters on the optimal response.FindingsAccording to the results, the proposed model can optimize the objective functions simultaneously, in which decision-makers can determine their priority according to the condition by using the sensitivity analysis results.Originality/valueThe focus of the research is on delivering relief items to the affected people on time and at the lowest cost, in addition to preventing long queues at the entrances to the affected areas.

ISO 9001: a vaccine for time of crisis

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ronny Alexander Zayas-Mateo ◽  
Ángel Rafael Martínez-Lorente
Keyword(s):  
Economic Crisis ◽  
Design Methodology ◽  
Iso 9001 ◽  
New Approach ◽  
Content Type ◽  
Operating Income ◽  
Industrial Companies ◽  
The World

Purpose ISO 9001 is applied by hundreds of thousands of companies throughout the world. For this reason, its effect on company results has been extensively studied. However, the results of those studies are inconclusive and sometimes contradictory. More in-depth research, with a new approach, is therefore necessary. The purpose of this paper is to analyse whether ISO 9001-certified companies suffered the effects of the financial and economic crisis of 2007–2008 to a lesser degree than non-certified ones. Design/methodology/approach A set of 179 companies certified by ISO 9001:2008 and 154 non-certified ones were analysed, as well as the accounting figures for net sales and operating income (EBIT: earnings before interest and taxes) from 2004 to 2012. Findings Companies from the industry and services sectors showed different results. Certified industrial companies achieved better outcomes than their non-certified counterparts. However, the deviations in outcomes were not significant for services companies. Research limitations/implications One limitation of this study is that companies’ official results are not always their true results. Another limitation is that having to do with the criteria followed to suppress extreme cases, which is always subjective. Furthermore, the implications of the results could be of use for those managers who are responsible for implementing ISO 9001 and for deciding whether obtaining the ISO 9001 certification would be beneficial to their companies. Originality/value This study constitutes a new approach for the assessment of the benefits of the ISO 9001 certification.

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