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The purpose of this paper is to analyze and simulate the control techniques that can be used to control the on-board conductive battery chargers (OCBCs) for electric vehicles applications. This paper also provides a comparative study of these control techniques.

Battery chargers would play an important role in the development of new battery electric vehicles (BEVs). The control techniques of these OCBCs can significantly influence the BEV performance during the charging mode from the ac grid. In addition, the proper selection of control systems of the OCBCs has a great impact on the power quality of the AC grid during the charging period. Therefore, this paper presents the analysis of different control techniques that are commonly used to control the battery chargers. In addition, a comparative study of different control techniques of the OCBCs for BEVs is provided.

The results have demonstrated that it is possible to significantly improve the efficiency, power factor and total harmonic distortion by using proportional-integral control and proportional-resonant control. The digital control can be used to validate the selected control technique.

The main objective of this paper is to analyze the different control methods that can be used to control the OCBCs during charging mode from the ac grid. In addition, this paper presents a comparative analysis between these control methods. In this paper, a digital control based on TMS320F2808 DSP is used to implement the proper control method for OCBCs.

The authors examine how a not-for-profit organisation (NPO) coordinates NPO's actions during the coronavirus disease 2019 (COVID-19) global pandemic to remain focussed on strategic and operational goals.

The authors conducted a live case study of an NPO as the crises caused by the COVID-19 pandemic unfolded. Drawing on a sensemaking perspective that incorporates sensegiving, the authors develop a framework of five types of organisational sensemaking. The authors analyse weekly planning meetings during which managers discussed past performance, forecast performance and the forecast duration of current cash reserves.

The authors show how three of the five types of organisational sensemaking helped to coordinate actions. The authors highlight how accounting information triggers organisational sensemaking processes; but depending on the type of organisational sensemaking, accounting information has little further role. The authors also show that the stability of decisions depends on the types of organisational sensemaking.

The authors show how coordination as a management control practice is enabled by organisational sensemaking within an NPO during a crisis. Organisational sensemaking enabled the agreement of actions, which enabled coordination. Accounting practices provided trigger mechanisms to facilitate organisational sensemaking.

Since this study is the first to examine sensemaking processes and accounting practices in coordination in an NPO in a pandemic, the authors contribute to the limited research on NPOs during crises and on the management control practice of coordination. The authors extend the accounting literature on sensemaking by showing that, whilst accounting triggers organisational sensemaking, accounting is only implicated in one type of organisational sensemaking and by revealing the different outcomes of the different types of organisational sensemaking.

Optimization techniques can be used to design geometrically complex components with a wide variety of optimization criteria. However, such components have been very difficult and costly to produce. Layered fabrication technologies such as electron beam melting (EBM) open up new possibilities though. This paper seeks to investigate the integration of structural optimization and direct metal fabrication process.

Mesh structures were designed, and optimization problems were defined to improve structural performance. Finite element analysis code in conjunction with nonlinear optimization routines were used in MATLAB. Element data were extracted from an STL‐file, and output structures from the optimization routine were manufactured using an EBM machine. Original and optimized structures were tested and compared.

There were discrepancies between the performance of the theoretical structures and the physical EBM structures due to the layered fabrication approach. A scaling factor was developed to account for the effect of layering on the material properties.

Structural optimization can be used to improve the performance of a design, and direct fabrication technologies can be used to realise these structures. However, designers must realize that fabricated structures are not identical to idealized CAD structures, hence material properties much be adjusted accordingly.

Integration of structural optimization and direct metal fabrication was reported in the paper. It shows the process from design through manufacturing with integrated analysis.

This report describes Rapid Prototyping (RP) ‐aided assessment and preoperative planning for treatment of bilateral multifocal pelvic limb deformities in a 1 year old German Shepherd dog. Computed tomography (CT) scans were acquired on a General Electric CT scanner and converted to solid models using Mimics software from Materialise. Stereolithography patterns were prototyped using QuickCast build style on a SLA ‐190. Room temperature vulcanized silicone molds were constructed and three sets of polyurethane patterns were cast for pre‐surgical planning and rehearsal. The paper compares traditional osteotomy planning procedures using only radiographs and 2D CT images to planning with full‐scale physical biomodels. The biomodels had a clearly beneficial impact on the accuracy of surgery and positively influenced the clinical outcome.

This chapter establishes a path to rebuilding business and regenerating society in Peru, focusing on the limitations and opportunities for recovery following COVID-19, from the perspective of mitigating the effects of climate change and biodiversity loss. The study is divided into five sections. First the Peruvian context and background are introduced. Next, the position of Peru in the 2030 Agenda is outlined. The third section describes the research methodology, followed by a discussion of the results in the fourth section, analysing how to overcome negative trade-offs and achieve the best possible balanced scenario. Finally, the fifth section offers recommendations and insights for policymakers.

The aim of this study is to describe an improved experimental substrate for the mechanical testing of patient-specific implants fabricated using direct metal additive manufacturing processes. This method reduces variability and sample size requirements and addresses the importance of geometry at the bone/implant interface.

Short-fiber glass/resin materials for cortical bone and polyurethane foam materials for cancellous bone were evaluated using standard tensile coupons. A method for fabricating bone analogs with patient-specific geometries using rapid tooling is presented. Bone analogs of a canine radius were fabricated and compared to cadaveric specimens in several biomechanical tests as validation.

The analog materials exhibit a tensile modulus that falls within the range of expected values for cortical and cancellous bone. The tensile properties of the cortical bone analog vary with fiber loading. The canine radius models exhibited similar mechanical properties to the cadaveric specimens with a reduced variability.

Additional replications involving different bone geometries, types of bone and/or implants are required for a full validation. Further, the materials used here are only intended to mimic the mechanical properties of bone on a macro scale within a relatively narrow range. These analog models have not been shown to address the complex microscopic or viscoelastic behavior of bone in the present study.

Scientific data on the formulation and fabrication of bone analogs are absent from the literature. The literature also lacks an experimental platform that matches patient-specific implant/bone geometries at the bone implant interface.

This article explores how employees in a public sector organization (PSO) make sense of the introduction of a social intranet and new employee communication roles. The aim is to understand employee sensemaking and how sensemaking influences the change process within the organization.

The article is based on a case study in a Danish PSO with 30,000 employees. The empirical material includes strategic documents, online observations and seven focus groups with employees conducted before, during and after the introduction of a new social intranet.

The employees found that making sense of the purpose with the social intranet is difficult. A managerial approach to change communication could easily result in employees' frustrations and concerns being dismissed as signs of resistance to change. From a communication perspective, the findings reveal that the employees engaged in seven different sensemaking enactments.

Change cannot be understood simply as something that employees are for or against. Instead, a change process should be perceived as a set of communication processes or sensemaking enactments happening in interactions between employees that can act in favor of, against or neutrally toward change.

Managers and communication professionals can interact with the seven sensemaking enactments, and some tentative initiatives are suggested in the article.

The article explores the employee perspective in a change process in a PSO and identifies seven employee sensemaking enactments highlighting that change happens in communication processes.

Presents a new theory about the communication structure used by ocean‐living odontocetes. Draws conclusions from eight biological singularities in dolphin communication found in empirical research but not yet put into a systematic context. They suggest the interpretation that in dolphin communication information is encoded by way of SOund PAttern VAriation. Discusses the formal prerequisites of this theory; negative and positive predictions are made. Interprets both the results of Bastian's communication experiment and the scouting behaviour observed in the wild as evidence that dolphins possess a highly developed SOund PAttern VAriation LAnguage (SOPAVALA). Complements this by examining considerations concerning the evolutionary process which may have made this development possible. Discusses characteristic features of the proposed new language structure and suggests how to decode successfully and understand a dolphin's SOPAVALA, should it exist.

This study aims to examine if relational attachment could be considered as a mediator in the relationship between social support and career regret. The theoretical framework is based on Kahn’s (2007) work on meaningful connections.

The authors used a three-part survey for data collection, spread over two months from 368 employees for co-worker social support and 324 employees for supervisor social support working in different sectors in India.

The results indicate that for co-workers, relational attachment acts as a mediator between instrumental support and career regret; but for personal support, the mediation effect is absent. However, instrumental support is not directly related to career regret. Notably, in case of social support from the supervisor, there does not seem to be any mediation effect for personal or instrumental support. But social support is related to career regret for both categories of support.

The authors contribute to literature that examines the mechanism, driving social support and career regret. By understanding how these factors interact and impact one another, researchers can develop interventions and strategies to help individuals navigate career decisions, improve their personal relationships and increase their access to social support. Ultimately, this research can lead to improved well-being and career satisfaction for individuals. As the sample is generalized, there is scope to examine if the relationships differ based on the work structures and idiosyncrasies of the industries.

This study examines the unmapped mechanism that mediates the social support and career regret relationship, and in the process, provides new directions for research.

This study aims to investigate the consequences of middle managers’ sensegiving for organisational change in neglected workplaces, where middle managers are given insufficient resources because of receiving low attention from top management.

The authors conducted a case study of three call centres in the Japanese non-life insurance industry. To collect data, the authors conducted interviews with ten stakeholders and made multiple field observations.

The authors identified the following mechanism: in neglected workplaces, middle managers initially focus on sensegiving to employees because they recognise the difficulty of eliciting support from top management. However, as a result, they see sensegiving to employees as top priority and do not try to elicit the support of top management, which is necessary for further organisational change. As a result, organisational change stops at a certain level.

The authors identified the following mechanism: in neglected workplaces, middle managers initially focus on sensegiving to employees because they recognise the difficulty of eliciting support from top management. However, as a result, they see sensegiving to employees as their top priority and do not try to elicit the support of top management, which is necessary for further organisational change. As a result, organisational change stops at a certain level.

First, this study contributes to the body of research on the effects of sensegiving on organisational change. It shows the new problems hidden behind organisational change, which existing research merely regards as independent successes. Second, this study identifies middle managers’ behaviour during organisational change in neglected workplaces. Instead of focusing on the factors necessary for successful organisational change, as in existing studies, this study extends the knowledge of the role of middle managers in organisational change by focusing on their behaviours when success factors are not aligned.