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This chapter explores the dual constructs of Winnicott’s notion of holding environment and Altvatar et al.’s notion of “stepping up and stepping back” into leadership roles. The…
Abstract
This chapter explores the dual constructs of Winnicott’s notion of holding environment and Altvatar et al.’s notion of “stepping up and stepping back” into leadership roles. The merging of the two constructs provides a double lens through which to analyze the Truth and Reconciliation Commission (TRC) process in post-apartheid South Africa in the mid-1990s. Reporting from that era provides first-hand recollections and transcripts of the process. In addition, the political moment of transition and healing via TRCs serves as an arena in which to consider the importance of a holding environment when undertaking social justice missions in which leadership and followership are ineluctably entwined. While the outcome of South Africa’s TRCs is considered imperfect, I suggest that the establishment of similar such holding environments would further dialogue and efforts toward peace and reconciliation in the United States around issues of race.
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Linda G. Bills and Linda W. Helgerson
The user interface, in broad terms, is the medium through which the user and the information come together. The types of searches a public access catalog (PAC) can perform are…
Abstract
The user interface, in broad terms, is the medium through which the user and the information come together. The types of searches a public access catalog (PAC) can perform are defined by the indexing strategy and retrieval software. The way the user's interest is communicated to the retrieval software and the way the results are communicated to the user is, by a more narrow definition, the interface software. Both the kinds of searches that can be performed by a variety of CD‐ROM PACs and how their workstations are used to accomplish the searches are considered.
Xiang Shen, Kai Zeng, Liming Yang, Chengyong Zhu and Laurent Dala
This paper aims to study passive control techniques for transonic flow over a backward-facing step (BFS) using square-lobed trailing edges. The study investigates the efficacy of…
Abstract
Purpose
This paper aims to study passive control techniques for transonic flow over a backward-facing step (BFS) using square-lobed trailing edges. The study investigates the efficacy of upward and downward lobe patterns, different lobe widths and deflection angles on flow separation, aiming for a deeper understanding of the flow physics behind the passive flow control system.
Design/methodology/approach
Large Eddy Simulation and Reynolds-averaged Navier–Stokes were used to evaluate the results of the study. The research explores the impact of upward and downward patterns of lobes on flow separation through the effects of different lobe widths and deflection angles. Numerical methods are used to analyse the behaviour of transonic flow over BFS and compared it to existing experimental results.
Findings
The square-lobed trailing edges significantly enhance the reduction of mean reattachment length by up to 80%. At Ma = 0.8, the up-downward configuration demonstrates increased effectiveness in reducing the root mean square of pressure fluctuations at a proximity of 5-step height in the wake region, with a reduction of 50%, while the flat-downward configuration proves to be more efficient in reducing the root mean square of pressure fluctuations at a proximity of 1-step height in the near wake region, achieving a reduction of 71%. Furthermore, the study shows that the up-downward configuration triggers early spanwise velocity fluctuations, whereas the standalone flat-downward configuration displays less intense crosswise velocity fluctuations within the wake region.
Practical implications
The findings demonstrate the effectiveness of square-lobed trailing edges as passive control techniques, showing significant implications for improving efficiency, performance and safety of the design in aerospace and industrial systems.
Originality/value
This paper demonstrates that the square-lobed trailing edges are effective in reducing the mean reattachment length and pressure fluctuations in transonic conditions. The study evaluates the efficacy of different configurations, deflection angles and lobe widths on flow and provides insights into the flow physics of passive flow control systems.
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Ruyun Hu, Liang Wang and Song Fu
The purpose of this paper is to investigate the characteristic flow structures behind a backward-facing step. With better understanding of unsteady features, effective control…
Abstract
Purpose
The purpose of this paper is to investigate the characteristic flow structures behind a backward-facing step. With better understanding of unsteady features, effective control practice with harmonic actuation is illustrated.
Design/methodology/approach
The present study employs Improved Delayed Detached Eddy Simulation to resolve flow turbulence with a finite-volume approach on structured grid mesh. The coherent structure is displayed through temporal- and spatial-evolution of pressure fluctuations. Characteristic frequencies in different flow regions are extracted using fast Fourier transform. Dynamic mode decomposition method is applied to uncover the critical dynamic modes.
Findings
The time- and spanwise-averaged quantities agree well with experimental data. It is observed that two distinct modes exist: shear layer mode and shedding mode. The former is related to Kelvin-Helmholtz instability mechanism, vortex pairing and step mode with non-dimensional frequency, Sth,st at around 0.2. The latter is of multi-scale, with a typical coherent structure shedding frequency, Sth,st at 0.074. Step mode interacts with shedding mode in the reattachment region, resulting in the low-frequency characteristics.
Originality/value
An optimal excitation frequency to reduce recirculation bubble length is obtained at about Sth,st =0.2 with an explanation.
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Exploring responsible negotiation is like discovering the forest beyond the tree. The purpose of this paper is to develop seven steps that might be needed for negotiators to…
Abstract
Purpose
Exploring responsible negotiation is like discovering the forest beyond the tree. The purpose of this paper is to develop seven steps that might be needed for negotiators to become more responsible. These steps take into account the people at the table, but also those behind and beyond the table, and those needed to sign, ratify and also implement the deal. A broad responsibility should also integrate legal, moral, systemic and environmental constraints, as well as the future of the next generation.
Design/methodology/approach
Negotiation techniques may serve any goal, and therefore lead to irresponsible processes and outcomes. A selected review of the literature on negotiation theory is explored, and its current concepts are complemented to integrate responsibility.
Findings
In total, seven levels of responsibility can be identified for negotiation: towards oneself, the other, respective principals, implementers, absentees, legal compliance, moral norms and values, and the next generation.
Research limitations/implications
It is not clear if responsibility for negotiators should be studied in terms of degrees on a continuum towards heightened responsibility, or if a negotiator should pass the seven‐step test to be considered responsible.
Practical implications
Negotiation skills are essential for leaders, who negotiate every day. Too often, however, negotiators' measure of success does not integrate responsibility.
Social implications
Negotiation involves social interactions, but is often conceived as a self‐centered process, and at best as a dual or two‐level game. It is essential to show how negotiations have social implications that go much beyond these close interpersonal interactions.
Originality/value
There is no other structured article on “responsible negotiation” – which means the paper fills a gap in the management literature. It is indispensable to launch a reflection on this topic, in the same way as there are reflections on “responsible leadership”, “responsible finance”, etc.
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Luca Bruzzone and Pietro Fanghella
The aim of the research is the development of a small-scale ground mobile robot for surveillance and inspection; the main design goals are mobility in indoor environments with step…
Abstract
Purpose
The aim of the research is the development of a small-scale ground mobile robot for surveillance and inspection; the main design goals are mobility in indoor environments with step climbing ability, pivoting around a vertical axis and without oscillations for stable vision, mobility in unstructured environments, low mechanical and control complexity.
Design/methodology/approach
The proposed hybrid leg-wheel robot is characterized by a main body equipped with two actuated wheels and two praying Mantis rotating legs; a rear frame with two idle wheels is connected to the main body by a vertical revolute joint for steering; a second revolute joint allows the rear axle to roll. The geometrical synthesis of the robot has been performed using a nondimensional approach for generality's sake.
Findings
The experimental campaign on the first prototype confirms the fulfilment of the design objectives; the robot can efficiently walk in unstructured environments realizing a mixed wheeled-legged locomotion.
Practical implications
Thanks to the operative flexibility of Mantis in indoor and outdoor environments, the range of potential applications is wide: surveillance, inspection, monitoring of dangerous locations, intervention in case of terroristic attacks, military tasks.
Originality/value
Different from other robots of similar size, Mantis combines high speed and energetic efficiency, stable vision, capability of climbing over high steps, obstacles and unevenness.
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Interview data is often the cornerstone of qualitative field studies, yet problems with getting sufficient, rich, reliable data in a cost effective manner can inhibit the progress…
Abstract
Purpose
Interview data is often the cornerstone of qualitative field studies, yet problems with getting sufficient, rich, reliable data in a cost effective manner can inhibit the progress of field study research. The purpose of this paper is to describe the use of a novel interview method, the cognitive interview, in an exploratory field study of management accounting change where in‐depth access was impractical.
Design/methodology/approach
The cognitive interview was developed by cognitive psychologists for use in police witness interviewing. It has been found to substantially improve the amount of information that subjects recall while maintaining or slightly improving accuracy levels.
Findings
The cognitive interview was found to be effective at gathering rich, detailed data despite the restriction of conducting only one or two interviews at each company. The cognitive interview uncovered information that did not fit with the participants' initial account of events. The structure of the cognitive interview often led participants to provide narrative accounts, allowing narrative analysis techniques such as genre analysis to be used. Asking participants to retell their accounts in reverse order may allow researchers to discern the schema (mental template) that the participant was using to organise their memories of the change process.
Originality/value
In its first known use for business research, the cognitive interview was effective at moving beyond the rationalized accounts that participants often provide initially. Researchers who conduct interviews to collect data may find this of particular interest.
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This research aimed to develop an automatic 3D body measurement line generation method that reduces errors induced by diverse body shapes and incomplete scan areas.
Abstract
Purpose
This research aimed to develop an automatic 3D body measurement line generation method that reduces errors induced by diverse body shapes and incomplete scan areas.
Design/methodology/approach
Three-dimensional body scan data from the 5th Size Korea database were used. Measurement extraction methods were developed for each measurement; chest girth, underbust girth, armscye girth and neck base girth.
Findings
The research showed that the method adopted in this study enhanced the accuracy of the scan measurements for various body shapes and incomplete scan data. The authors verified the accuracy of the developed methods for various body shapes by comparing the scan measurement against manual measurement.
Originality/value
The automatic 3D body measurement line generation algorithms developed for various human body shapes will improve the reliability and accuracy of 3D body scan measurement program. Also. it will be of practical use in human-size-related production processes.
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IN today's conditions one of the most profitable areas of work study investigation is, perhaps, the suitability of materials and their utilisation. This not only implies the…
Abstract
IN today's conditions one of the most profitable areas of work study investigation is, perhaps, the suitability of materials and their utilisation. This not only implies the evaluation of materials in relation to the product and its processing, but also methods of storage, inspection, and usage of the material in question at all stages. Here lies many untapped sources of economy and is one which is often by‐passed by work study.