Novel coupled analysis methods of automotive alternators considering synchronous rectification circuit

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yuki Hidaka
Keyword(s):  
Coupled Analysis ◽  
Content Type ◽  
Control Simulation ◽  
Generation Characteristic ◽  
Synchronous Rectification ◽  
Generation Mode ◽  
Bus Voltage ◽  
Definition Of ◽  
Practical Implications

Purpose The purpose of this paper is to develop a novel coupled analysis method for synchronous rectification alternators. Design/methodology/approach An ideal diode module is embedded in a rectification circuit. The resistance of the diode module is set such that it is equal to the on-resistance of the MOS-FET modules in the generation mode. In a mode without power generation, the motor voltage is less than the bus voltage; a sufficiently large value is defined for simulating the infinite resistance. Findings Because there is no need to decide the switch timing in advance, only one round of coupled analysis is needed to evaluate the synchronous rectification alternators. Research limitations/implications As limited case study is denoted in this paper, much more case studies are needed to be discussed. Practical implications By using the proposed method, it can be fulfilled that generation characteristic of automotive alternators can be evaluated without using the control simulation or pre-conducted analysis to decide the switch timing. Social implications By using the proposed method, it can be fulfilled that generation characteristic of automotive alternators can be evaluated without using the control simulation or pre-conducted analysis to decide the switch timing. Originality/value In the proposed methods, the definition of diode module differs from that of a conventional coupled analysis.

Resource development conflict: a quantitative approach

2017 ◽  
Vol 3 (1) ◽  
pp. 42-55 ◽  
Author(s):  
Murray Lytle ◽  
Michael Hitch
Keyword(s):  
Design Methodology ◽  
Resource Development ◽  
Survey Analysis ◽  
Potential Significance ◽  
Content Type ◽  
Real World Setting ◽  
Respondent Group ◽  
Definition Of ◽  
Practical Implications

Purpose The purpose of this paper is to propose the thesis that how an individual views the world – their worldview – is indicative of their acceptance of resource development. A definition of worldview is given and the significance of worldview to cultural and civilizational development is described. A methodology for testing the hypothesis is described and the results of a survey used to collect data are analyzed. At least for the approximately 300 respondents to the survey, there is a correlation between their responses to a series of worldview questions and their acceptance of resource development. Not surprisingly, the correlation becomes stronger as the homogeneity of the respondent group increases. The results of the survey analysis are then compared to a known resource development conflict in a case study to understand the potential significance of the results in a real-world setting. Design/methodology/approach A definition of worldview is given and the significance of worldview to cultural and civilizational development is described and evaluated. A methodology for testing the hypothesis is described and the results of a survey used to collect data are analyzed. Findings At least for the 300 respondents to the survey, there is a correlation between their responses to a series of worldview questions and their acceptance of resource development. The case study indicates that respondents can hold contradictory views depending upon the level of inquiry. Research limitations/implications The sample size is too small to draw any but the most preliminary of conclusions. However, the correlations are high enough to encourage additional work. Practical implications The research may point to a relatively simple means of understanding the level of acceptance of resource development among all parties to a development proposal. This will allow proponents to identify issues early enough to address them in the design and negotiation phases of project development. Social implications Resource developers and residents local to the proposed development are often talking at cross-purposes because the issues are not understood at a deep enough level. Once issues are understood at the deeper level of worldview opportunities for resolution may be identified. Originality/value As far as the researchers are aware this is the only published methodology for quantifying the acceptance of resource development. As identified by the case study, it is possible for a community to reject resource development for reasons that have little to do with resource development either in the particular or in the general.

A benchmarking implementation framework for automotive manufacturing SMEs

2006 ◽  
Vol 13 (4) ◽  
pp. 396-430 ◽  
Author(s):  
Baba ◽  
Sha'ri Mohd Yusof ◽  
Azhari
Keyword(s):  
Conceptual Framework ◽  
Implementation Process ◽  
Development Stage ◽  
Implementation Framework ◽  
Automotive Manufacturing ◽  
Content Type ◽  
Implementation Effort ◽  
Definition Of ◽  
Practical Implications

PurposeThe purpose of this paper is to present a conceptual framework for benchmarking implementation in small medium‐sized enterprises (SMEs) taking into consideration their characteristics.Design/methodology/approachThe paper begins with the review on the definition of SME and a comparison of the characteristics of SMEs and large organizations. It presents the need for a framework and its relationship with benchmarking and TQM. This is followed by reviewing the benchmarking implementation frameworks proposed by researchers and discusses these frameworks based on their strengths and weaknesses from SMEs perspective. The frameworks were categorised into two broad types based on the different writer's background and the approach on how they view the benchmarking implementation process.FindingsThe paper suggested a conceptual framework for benchmarking implementation dedicated to the automotive manufacturing SMEs. This framework guides them through from the start to end of the benchmarking process. The framework was validated at six pilot case study companies, which gave useful comments and suggestions regarding the usefulness and applicability within the SMEs context.Research limitations/implicationsThe conceptual framework is still in the development stage and research is undertaken to include the pilot study companies suggestions and comments into the final version of the framework.Practical implicationsThis guidance and framework provides a useful guide for companies to adopt and adapt before embarking on their benchmarking journey.Originality/valueThis paper fulfils an identified knowledge gap and offers practical help to SMEs starting out a benchmarking implementation effort.

The uneasy transition from supply chains to ecosystems

2014 ◽  
Vol 52 (2) ◽  
pp. 278-295 ◽  
Author(s):  
Soumaya Ben Letaifa
Keyword(s):  
Supply Chains ◽  
Field Study ◽  
Value Creation ◽  
Design Methodology ◽  
Value Capture ◽  
Content Type ◽  
Multilevel Perspective ◽  
Definition Of ◽  
Practical Implications

Purpose – This paper uses the multidimensional definition of value – ecosystemic value – and employs lifecycle theory to identify the different stages of evolution of value-creation and -capture processes in an ecosystem. Specifically, the aim of this paper is to show the uneasy transition from supply chains to ecosystems. Design/methodology/approach – Based on a field study of a Canadian ICT ecosystem, this paper adopts a multilevel perspective on value-creation and value-capture processes and illustrates how these processes need to move from a dyadic economic focus to a network socioeconomic one. Findings – The findings pinpoint the uneasy transition from supply-chains management to ecosystems management and provide a framework for understanding how value creation and value capture should be coupled throughout the ecosystem lifecycle. Finally, five theoretical and managerial propositions are suggested to better leverage ecosystemic capabilities and better manage value creation and value capture in ecosystems. Practical implications – Five theoretical and managerial propositions are suggested to better leverage ecosystemic capabilities and better manage value creation and value capture in ecosystems. Originality/value – Many marketing and management scholars discuss the limitations of unbalanced perspectives (customer- or seller-centric) in building a comprehensive view of how value is created and captured. This multi-actors case study highlights how ecosystemic value creation may be obstructed by a firm's focus on value capture.

Corporate acceleration process: a systems psychodynamics perspective

2020 ◽  
Vol 33 (6) ◽  
pp. 1163-1180
Author(s):  
Piotr Wójcik ◽  
Krzysztof Obłój ◽  
Aleksandra Wąsowska ◽  
Szymon Wierciński
Keyword(s):  
Open Innovation ◽  
Negative Emotions ◽  
Acceleration Process ◽  
Content Type ◽  
Team Members ◽  
Third Phase ◽  
Multiple Case ◽  
Social Defenses ◽  
Practical Implications

PurposeThe purpose of this paper is to explore the emotional dynamics of the corporate acceleration process, using the systems psychodynamics perspective.Design/methodology/approachThe study applies inductive multiple case study of embedded 10 cases of corporate acceleration, covering both incumbent and startup perspectives, occurring in the context of a corporate accelerator.FindingsWe find that (1) the process of corporate acceleration involves three phases, each of them is dominated by a different emotional state (hope, anxiety and acceptance), triggering different behavioral responses; (2) as a means to deal with negative emotions, entrepreneurs and corporate acceleration program's team members develop different mechanisms of dealing with contradictories in subsequent acceleration phases (defense and copying mechanisms), which are reflected in their behaviors. Coping mechanisms with goal reformulation (i.e. refocus from the officially declared “open innovation” goals toward mainly symbolic ones) is an effective strategy to manage negative emotions in third phase of the acceleration.Research limitations/implicationsOur sample is limited to two relatively similar accelerators established by telecom companies, and therefore, our theoretical and practical conclusions cannot be generalized.Practical implicationsWe supplement the studies of corporate accelerators that imply how to design them better and improve decision-making rules with recommendation that in order to improve their effectiveness in terms of learning and innovations, their managers need not only to learn how to manage structural and procedural differences but also how to overcome social defenses triggered by corporate–startups cooperation.Originality/valueBy documenting a multidimensional impact of acceleration process, and especially shedding light on psychodynamic aspects behind such liaisons, this paper contributes to richer understanding of corporate–startup relationships, typically examined through a rationalistic lens of strategy literature. The study contributes to interorganizational research and open innovation literature, by showing that corporate acceleration process is marked by phases based on the type of emotions intertwined with the nature and dynamism of its life cycle. It indicates how these emotions are managed depending on their type.

scholarly journals Sinabung volcano: how culture shapes community resilience

2019 ◽  
Vol 28 (3) ◽  
pp. 290-303
Author(s):  
Marta Mori ◽  
Ronan McDermott ◽  
Saut Sagala ◽  
Yasmina Wulandari
Keyword(s):  
Structured Interviews ◽  
Content Type ◽  
Aid Dependency ◽  
Relief Operations ◽  
Long Term Impact ◽  
Cultural Experts ◽  
Practical Implications

Purpose The purpose of this paper is to explore how culture, including traditions and social structures, can influence resilience and how culturally sensitive relief operations can put affected people and their context at the core of any interventions. Design/methodology/approach A case study of the Mt Sinabung volcano area in Indonesia was undertaken. As part of the case study, an analysis of interventions was conducted, which was complemented by semi-structured interviews with Karo cultural experts and humanitarian organisations. Findings Culture influences the manner in which the Karo people react to volcano eruptions with varying implications for recovery. In addition, relief organisations which understand people’s actions through a cultural lens have better managed to tailor programs with long-term impact, thereby avoiding aid dependency. Practical implications Practical examples of disaster management activities that adequately account for the beneficiaries’ way of living prior to the eruptions are provided. Aid actors are provided with guidance concerning how to better tailor their activities in line with a cultural lens. Originality/value The study provides empirical grounding for claims concerning the role of culture in planning interventions in Indonesia and other similar contexts.

The deputy principal instructional leadership role and professional learning

2017 ◽  
Vol 55 (1) ◽  
pp. 33-48 ◽  
Author(s):  
Ann Leaf ◽  
George Odhiambo
Keyword(s):  
Instructional Leadership ◽  
Professional Learning ◽  
Ad Hoc ◽  
Team Building ◽  
Leadership Role ◽  
Instructional Leaders ◽  
Structured Interviews ◽  
Content Type ◽  
Practical Implications

Purpose The purpose of this paper is to report on a study examining the perceptions of secondary principals, deputies and teachers, of deputy principal (DP) instructional leadership (IL), as well as deputies’ professional learning (PL) needs. Framed within an interpretivist approach, the specific objectives of this study were: to explore the extent to which DPs are perceived as leaders of learning, to examine the actual responsibilities of these DPs and to explore the PL that support DP roles. Design/methodology/approach The researchers used multiple perspective case studies which included semi-structured interviews and key school document analysis. A thematic content analysis facilitated qualitative descriptions and insights from the perspectives of the principals, DPs and teachers of four high-performing secondary schools in Sydney, Australia. Findings The data revealed that deputies performed a huge range of tasks; all the principals were distributing leadership to their deputies to build leadership capacity and supported their PL in a variety of ways. Across three of the case study schools, most deputies were frequently performing as instructional leaders, improving their school’s performance through distributing leadership, team building and goal setting. Deputy PL was largely dependent on principal mentoring and self-initiated but was often ad hoc. Findings add more validity to the importance of principals building the educational leadership of their deputies. Research limitations/implications This study relied upon responses from four case study schools. Further insight into the key issues discussed may require a longitudinal data that describe perceptions from a substantial number of schools in Australia over time. However, studying only four schools allowed for an in-depth investigation. Practical implications The findings from this study have practical implications for system leaders with responsibilities of framing the deputies’ role as emergent educational leaders rather than as administrators and the need for coherent, integrated, consequential and systematic approaches to DP professional development. Further research is required on the effect of deputy IL on school performance. Originality/value There is a dearth of research-based evidence exploring the range of responsibilities of deputies and perceptions of staff about deputies’ IL role and their PL needs. This is the first published New South Wales, Australian DP study and adds to the growing evidence around perceptions of DPs as instructional leaders by providing an Australian perspective on the phenomenon. The paper raises important concerns about the complexity of the DP’s role on the one hand, and on the other hand, the PL that is perceived to be most appropriate for dealing with this complexity.

Interaction, engagement, and perceived interactivity in single-handed interaction

2016 ◽  
Vol 26 (5) ◽  
pp. 1134-1157 ◽  
Author(s):  
Donghee Shin ◽  
Myunggoon Choi ◽  
Jang Hyun Kim ◽  
Jae-gil Lee
Keyword(s):  
Behavioral Intention ◽  
Interaction Techniques ◽  
Content Type ◽  
Thumb Movement ◽  
Wide Range ◽  
Mobile Industry ◽  
Perceived Interactivity ◽  
The Subject ◽  
Definition Of ◽  
Practical Implications

Purpose The purpose of this paper is to examine the effects of interaction techniques (e.g. swiping and tapping) and the range of thumb movement on interactivity, engagement, attitude, and behavioral intention in single-handed interaction with smartphones. Design/methodology/approach A 2×2 between-participant experiment (technological features: swiping and tapping×range of thumb movement: wide and narrow) was conducted to study the effects of interaction techniques and thumb movement ranges. Findings The results showed that the range of thumb movement had significant effects on perceived interactivity, engagement, attitude, and behavioral intention, whereas no effects were observed for interaction techniques. A narrow range of thumb movement had more influence on the interactivity outcomes in comparison to a wide range of thumb movement. Practical implications While the subject of actual and perceived interactivity has been discussed, the issue has not been applied to smartphone. Based on the research results, the mobile industry may come up with a design strategy that balances feature- and perception-based interactivity. Originality/value This study adopted the perspective of the hybrid definition of interactivity, which includes both actual and perceived interactivity. Interactivity effect outcomes mediated by perceived interactivity.

The operational efficiency of passenger aircraft

2006 ◽  
Vol 78 (1) ◽  
pp. 32-38 ◽  
Author(s):  
Donald McLean
Keyword(s):  
Design Methodology ◽  
Operational Efficiency ◽  
Civil Aviation ◽  
Content Type ◽  
Transport Economics ◽  
Load Factors ◽  
Consistent Assessment ◽  
Definition Of ◽  
Passenger Aircraft ◽  
Practical Implications

PurposeTo provide for the use of airlines and other civil aviation organizations a practical definition of operational efficiency and to show how it can be determined.Design/methodology/approachA brief account of air transport economics is used to demonstrate how bom load factors and aircraft utilization need to be considered in assessing operational efficiency. Then other efficiencies are treated briefly before an example is given of how the better of two fictitious aircraft can be chosen for a particular route. A second example involving the calculation of the operational efficiency achieved by an imaginary airline is also given to show that the typical value is lower than might be expected, particularly in view of the relatively high load factors involved.FindingsProvides performance values and economic figures which are typical of current airline operations.Practical implicationsUse of the proposed definition will allow the consistent assessment of the economic performance of airlines.Originality/valueAt present there is no definition of operational efficiency in general use although it is greatly needed by airlines. The definition proposed in this paper is practical and easy to use.

Digital competences of the workforce – a research topic?

2017 ◽  
Vol 23 (3) ◽  
pp. 721-734 ◽  
Author(s):  
Matthias Murawski ◽  
Markus Bick
Keyword(s):  
Research Topic ◽  
Future Research ◽  
Digital Competence ◽  
Content Type ◽  
Research Activities ◽  
Starting Point ◽  
Pros And Cons ◽  
Definition Of ◽  
The Individual ◽  
Practical Implications

Purpose Considering working in the digital age, questions on the consequences for the individual workers are, so far, often neglected. The purpose of this paper is to deal with the question of whether the digital competences of the workforce is a research topic. The authors argue for the thesis that it is indeed a research topic. Design/methodology/approach In addition to a literature analysis of the top IS, HR, and learning publications, non-scientific sources, as well as the opinions of the authors, are included. The authors’ thesis is challenged through a debate of corresponding pros and cons. Findings The definition of digital competences lacks scientific depth. Focussing on the workforce is valid, as a “lifelong” perspective is not mandatory for research. Digital competence research is a multidisciplinary task to which the IS field can make a valuable contribution. Research limitations/implications Although relevant references are included, some aspects are mainly driven by the opinions of the authors. The theoretical implications encompass a call for a scientific definition of digital competences. Furthermore, scholars should focus on the competences of the workforce, including occupations, roles, or industries. The authors conclude by providing a first proposal of a research agenda. Practical implications The practical implications include the alignment of multiple stakeholders for the design of “digital” curricula and the integration by HR departments of the construct of digital competences, e.g. for compensation matters and job requirements. Originality/value This paper is one of very few contributions in the area of the digital competences of the workforce, and it presents a starting point for future research activities.

scholarly journals Innovation and cross-functional teams

2018 ◽  
Vol 24 (1/2) ◽  
pp. 84-105 ◽  
Author(s):  
Daniel Marasquini Stipp ◽  
Márcio Lopes Pimenta ◽  
Daniel Jugend
Keyword(s):  
Single Case ◽  
Field Research ◽  
Incremental Innovation ◽  
Future Research ◽  
Content Type ◽  
The Public ◽  
Tax Management ◽  
Functional Teams ◽  
Practical Implications

Purpose The aim of this paper is to characterize how innovation may happen through cross-functional teams (CFT) in an organization of the public sector. Design/methodology/approach A case study helped to characterize several behavior patterns, team structures and respective links with generating innovation in internal processes and public answering contexts. Findings The results highlight that formal-temporary teams present a higher capacity to generate incremental innovation in products, whereas permanent-informal teams have a higher capacity to generate innovation in the internal processes and public answering contexts. Research limitations/implications The limitations of this research relate to the fact that this is a single case study, and although it is an important case to examine innovation and CFTs, by its very nature, it is not possible to extend and generalize the obtained data to other organizations. The evaluation of its propositions was merely qualitative, and future research is needed to validate its characteristics. Practical implications Several settings of CFTs are presented, as well as their ability to generate different types of innovation, such as the computerization of documents, petitions and papers, which decreases the time to answer the taxpayer. Moreover, CFTs can help to create products, such as computer programs that can be used not only locally but also in several public organizations related to tax management. Originality/value The field research provides the perceptions of the respondents regarding CFT characteristics that can lead to specific types of innovation, as well as the types of products or services that can be generated by these processes.

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