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This paper aims to propose an effective method to verify poles polarities of switched reluctance motors (SRMs). Different from the ways of detection poles polarities by permanent magnet in SRMs, the difference of self-inductance between different winding connections is used to verify the pole polarity.

First, the winding connections with the forward and reverse series are proposed. The magnetic circuit models are established to analyze the flux linkage of different winding connections. Then, according to the difference of inductance characteristics, including the self-inductance and the mutual inductance affected by the adjacent poles, it is theoretically feasible to verify the polarity of each pole. Finally, the proposed method is verified by the simulation and experiment on a six-phase SRM.

First, compared to the reverse series, the forward series can produce larger self-inductance when one phase is excited at the same current excitation, which can be used to verify the poles polarities of one phase with different winding connection. Second, the mutual inductance can be used to distinguish the winding connections. Third, the difference of the maximum self-inductance of the winding, which is composed of two adjacent windings, can be used to verify the polarities of the adjacent poles.

This paper proposes an effective method to verify poles polarities of SRMs.

This paper aims to show how polarity coaching can foster meaningful change among executive clients through sponsoring a deeper understanding and acceptance of interdependent opposites.

The study explores what is required from the coach and the coaching relationship and how clients can be supported in overcoming polarity traps. A social constructionist and sense‐making approach to coaching is followed and the paper draws on relevant literature from the fields of psychotherapy, coaching, and dialogical change.

It is shown that before engaging in polarity coaching it is important for coaches to become aware of the polarity tensions that are prevalent in their own work and to explore their personal preferences when facing these tensions. A coach who is able to hold interdependent opposites with ease in the coaching encounter will allow clients to experience transformation on a deeper level.

The core of the paper is the polarity‐coaching model, which describes how coaches can guide their clients through a process of discovering polarized thinking, pole exploration, and boundary softening for becoming more comfortable with interdependent opposites. The paper will be of interest to those in the field of coaching executives.

The purpose of this study is to review literature relevant to leader transition and the navigation of polarities, paradoxes, and dilemmas that exist in organizations. Furthermore, the researchers aim to critique the literature and provide suggestions for practitioners and researchers interested in leader transition through the lens of polarity, paradox, and dilemma.

The authors conducted an extensive review of the literature for this study. They searched the following databases: ABI/INFORM, Academic Search Premier, Business Source Premier, PsychInfo, and Dissertations Abstracts. To conduct their search, the researchers used the terms; leader, manager, and supervisor in conjunction with the terms transitions, adaptation, socialization, assimilation, polarity, paradox, dilemma, polarity thinking, polarity management, leadership, team, organization, conflict management, creativity, and combinations of the same.

There is very little research conducted on either topic independently and no research conducted on both collectively. The literature on leader transitions also states that transitions are times of uncertainty and stress. The findings suggest that some of this uncertainty and stress could result from the inability to recognize and manage polarity, paradox, and dilemma. Furthermore, the literature does not acknowledge this connection nor does it specify the polarities that exist for leaders in general or leaders in transition.

Based on personal experiences working with organizational leaders and training and organization development professionals, the authors believe that there is great potential to help train new leaders on polarity thinking. If training and development professionals see value in polarity thinking for transitioning leaders and can respond with timely training interventions, it could have a positive impact on new leader effectiveness and subsequent organization performance.

The purpose of this paper is to use the general systemic yoyo model to illustrate why electric fields and magnetic fields can manifest each other and interact with each other.

The coordinated interaction of eddy and meridian fields of spinning yoyos is employed as our methodology for the investigation in this paper. At the end, the First Law on State of Motion is beautifully utilized.

Among many new theoretical discoveries, systemic yoyo models are provided to understand electric currents and the induced magnetic fields, which lead to a distinction between the yoyo structures of permanent magnets and those of the magnetic field induced by electric currents. It is theoretically shown why all fields in nature, such as electric, magnetic, universal, gravitational, and nuclear fields, have to exist in pairs of opposite polarities, even though one polarity might not be visible or recognizable with the current technology. Using the quark structures of spinning yoyos, an explanation is provided for why protons carry positive electric fields, while neutrons are electrically neutral.

One of the originalities of this paper is about its unified theory underlying many observed phenomena of electric and magnetic fields.

The paper aims to present the hybrid excited claw pole generator design, simulation and experimental results. The prototype has claw poles on two rotor sections, between which an excitation coil is located. The innovation of this machine is permanent magnets location on claws of one part of the rotor. The paper presents construction of the machine and analysis of the current in the excitation control coil influence on the electromagnetic torque, cogging torque and back-emf values. Presented studies enabled the determination of the torque and the back-emf for both: the strengthening and the weakening of magnetic field.

In the study, finite element analysis was used to perform simulation research. Then, based on the simulation studies, an experimental model was built. The paper also presents selected experimental results.

Achieved results show that the proposed machine topology allows to eliminate the disadvantages mentioned in paper, i.e. necessary to introduce special areas inside the machine to limit magnetic flux leakage or its complicated construction.

The obtained cogging torque values and back-emf pulsation are still relatively high. In the near future, some of known techniques for reducing these pulsations can be applied, including the use of magnetic wedges, changing shapes of rotor’s poles and/or skewing of permanent magnets.

The proposed solution can be used in wind turbines as a generator.

The paper presents an original design of a new construction of a hybrid-excited claw pole machine and also an excitation current influence on cogging torque and back-emf values.

The Hall‐effect sensor is one of the most widely‐used, yet least understood, transducers around.

Describes the design and operating principles of fluxgate sensors and magnetometers. Polarity determination and compensation for temperature and high frequency (> 100Hz) alternating magnetic fields are also discussed.

Successful firms must exploit existing markets while simultaneously exploring new market opportunities. However, skills required to do both simultaneously are often at odds with each other. To reconcile this dilemma, the authors aim to discuss the new concept of “strategic ambidexterity”, which is conceptualized as the ability to simultaneously pursue exploitation and exploratory strategies in ways that lead to enhanced organizational effectiveness.

The authors conceptually integrate literature from organizational theory, strategic management, and marketing to yield three new theoretical propositions.

It is argued that a relatively new dynamic capability, organizational capacity for change, is the primary antecedent of strategic ambidexterity and that this relationship is moderated by environmental uncertainty and organizational slack.

Most organizational and marketing theories rely on linear assumptions and models. However, twenty‐first century organizations must reconcile competitive realities that are often nonlinear in nature. This study provides a conceptual framework which transcends traditional thinking, and provides a comprehensive yet concise framework for researching this new competitive reality further.

This paper aims to propose a new topology of direct current (DC) machine using claw-pole stator to replace standard DC starter in micro-hybrid vehicles. The main interest of such a topology is the reduction of copper volume.

The design of the claw-pole machine is based on a multi-objective optimization of several topologies, based on a three-dimensional (3D) reluctance network modeling. The 3D finite element (FE) model is used to check the results of the optimization, and a prototype is manufactured and tested with satisfactory results.

The claw-pole topology with wave-shape windings allows to replace the current DC series classical starter because of to its copper volume saving.

This model is only limited to the optimization of the claw-pole stator for a fixed geometry of the rotor.

The research outcome shows that claw-pole machine can replace the series-excited DC machines of starters and at the same time achieve the same performance at reduced copper volume.

The paper deals with a new DC machine topology to reduce the copper volume through the suppression of the classical stator end-windings. The use of Claw-Pole inductors ensures this copper reduction.