Daniel Klatt, Michael Proff and Robert Hruschka
The present work aims to investigate the capabilities of accurately predicting the six-degrees-of-freedom (6DoF) trajectory and the flight behavior of a flare-stabilized…
Abstract
Purpose
The present work aims to investigate the capabilities of accurately predicting the six-degrees-of-freedom (6DoF) trajectory and the flight behavior of a flare-stabilized projectile using computational fluid dynamics (CFD) and rigid body dynamics (RBD) methods.
Design/methodology/approach
Two different approaches are compared for calculating the trajectory. First, the complete matrix of static and dynamic aerodynamic coefficients for the projectile is determined using static and dynamic CFD methods. This discrete database and the data extracted from free-flight experiments are used to simulate flight trajectories with an in-house developed 6DoF solver. Second, the trajectories are simulated solving the 6DoF motion equations directly coupled with time resolved CFD methods.
Findings
Virtual fly-out simulations using RBD/CFD coupled simulation methods well reproduce the motion behavior shown by the experimental free-flight data. However, using the discrete database of aerodynamic coefficients derived from CFD simulations shows a slightly different flight behavior.
Originality/value
A discrepancy between CFD 6DoF/RBD simulations and results obtained by the MATLAB 6DoF-solver based on discrete CFD data matrices is shown. It is assumed that not all dynamic effects on the aerodynamics of the projectile are captured by the determination of the force and moment coefficients with CFD simulations based on the classical aerodynamic coefficient decomposition.
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This paper aims to clarify the fit of competitive strategies and firm-specific advantages (FSAs) with country-specific advantages (CSAs) in explaining manufacturing location…
Abstract
Purpose
This paper aims to clarify the fit of competitive strategies and firm-specific advantages (FSAs) with country-specific advantages (CSAs) in explaining manufacturing location choices at product category level in the European automotive industry.
Design/methodology/approach
Seven hypotheses are formulated and tested using binomial logistic regression with data from 148 passenger car models (i.e. product category level) that are sold in Europe and manufactured in countries that offer CSAs of either cost advantages or differentiation advantages. The first four hypotheses test manufacturing location choices of product categories pursuing cost leadership strategy, differentiation strategy, focus strategy and hybrid strategy. The other three hypotheses test whether FSAs of R&D capability, marketing capability and operations capability will impact on the manufacturing location choice. The tests control for the type of passenger cars as well as the manufacturer’s region of origin.
Findings
While pursuing cost leadership strategy leads to manufacturing in countries that offer cost advantages, pursuing differentiation strategy as well as strong R&D capability and marketing capability result in manufacturing in countries that offer differentiation advantages. Focus strategy, hybrid strategy and operations capability do not have an impact on the manufacturing location choice at product category level.
Research limitations/implications
Conducting empirical research at product category level is subject to limitations in the choices of FSAs due to lack of availability of data.
Practical implications
Managers should assess the competitive strategies and FSAs of their product categories and then decide about manufacturing locations based on their fit with host country CSAs. Policymakers should understand the CSAs of their countries and target to attract manufacturing FDI from product categories with matching competitive strategies and FSAs.
Originality/value
The research contributes to discussions in explaining manufacturing location choices. Its originality lies in being the first study to test the fit of competitive strategies and FSAs of product categories with CSAs.
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Martin Bonev, Michael Wörösch and Lars Hvam
The purpose of this paper is to explore the development of a platform-based project execution in the industrialised construction sector, with a focus on systematically balancing…
Abstract
Purpose
The purpose of this paper is to explore the development of a platform-based project execution in the industrialised construction sector, with a focus on systematically balancing cost and value. Offering custom-tailored buildings at reasonable costs has been a growing concern for many construction companies. A promising approach adapted by operations management and design theory regards individual building projects as the adjustment and recombination of components and processes from a set of predefined platforms, while configuration systems assure feasible building solutions.
Design/methodology/approach
After adapting some of the underlying assertions of platform design to the engineer-to-order (ETO) situation in construction, the practical implications are evaluated on a case study of a precast manufacturer using high performance concrete.
Findings
Based on empirical findings from three distinct platform strategies, this research highlights key aspects of adapting platform-based developed theory to industrialised construction. Building projects use different layers of product, process and logistics platforms to form the right cost – value ratio for the target market application, while modelling methods map structural platform characteristics so as to balance commonality and distinctiveness.
Originality/value
This paper proposes a general theory of platform-based development and execution in the industrialised construction sector, which goes beyond concurrent approaches of standardising and systemising buildings projects. It adapts and extends established frameworks for platform development to the ETO situation in construction and empirically validates their cost and value effects.
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This article aims to describe the valuable work conducted most recently on competitive strategies. Its purpose is to elaborate on suggestions for theorizing the hybrid form of…
Abstract
Purpose
This article aims to describe the valuable work conducted most recently on competitive strategies. Its purpose is to elaborate on suggestions for theorizing the hybrid form of competitive advantage and stimulate the interest of scholars.
Design/methodology/approach
As this article emphasizes hybrid strategies, both electronic and manual methods have detected 15 studies focusing on competitive strategies and their relation to firm performance from 2000 until today.
Findings
This article underlines the need to deal more thoroughly with combined-emphasis competitive strategies, which have seriously enhanced Porter’s paradigm, defined in 1980 with three single-emphasis strategic choices. The era in which combining competitive strategies was synonymous with stuck-in-the-middle alternatives has been left behind, and the era in which hybrid strategies suggest the most attractive choices, at least in some circumstances, has already begun.
Originality/value
This article is one of the few stressing conceptual issues of hybrid strategies that emerged from Porter’s (1980) model. No matter how many years pass by, research on competitive strategies will continue, as it considers businesses of any age, size, sector or country. The global challenge of today is how scholars will revise theory to better capture reality. This article intensifies the need for a theoretical framework embracing the full variety of competitive strategies, namely, single-emphasis, mixed-emphasis, no-distinctive-emphasis and stuck-in-the-middle. Nonetheless, due to their complex and multidimensional nature, hybrid strategies receive particular attention.
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Rachel L. Renbarger, David Michael Rehfeld and Tracey Sulak
With the number of doctoral degrees awarded increasing and full-time and tenure-track jobs decreasing, doctoral graduates are entering a fierce job market. Lack of knowledge and…
Abstract
Purpose
With the number of doctoral degrees awarded increasing and full-time and tenure-track jobs decreasing, doctoral graduates are entering a fierce job market. Lack of knowledge and support about navigating the job market can impact graduates' mental health and chances of securing long-term employment, but many graduates claim their programs provide little professional development in this area. The purpose of this study is to understand doctoral students' job preparation after participating in a departmental seminar.
Design/methodology/approach
The current explanatory sequential mixed methods, single case study investigated students' perceptions following a year-long seminar in job market navigation.
Findings
Students attending the seminar did not differ from those who did not attend on feelings of preparedness, number of application documents completed, or curriculum vita quality scores.
Research limitations/implications
Researchers may have limited ability to implement graduate student interventions given the power structures of faculty life and the lack of graduate student time.
Practical implications
The results suggest informal seminars may not be enough to support doctoral students' job market skills.
Social implications
This has implications for department chairs and deans to create faculty development opportunities to pivot to a student-centered culture rather than relying on faculty or external support to help graduate students prepare for the job market.
Originality/value
This case study provides insight as to how graduate students' job market anxieties are at odds with the current demands and structure of educational doctoral programs.
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Linda Hijriyah, Anuar Alias and Mohd Firrdhaus Mohd Sahabuddin
This study intends to analyze the trend of walkability research over two years (2021–2022) in several aspects, including the research problem, gap and aim underlying walkability…
Abstract
Purpose
This study intends to analyze the trend of walkability research over two years (2021–2022) in several aspects, including the research problem, gap and aim underlying walkability issues, research setting, the scale of analysis, the type of data, the data collection tool, the analysis method and contribution.
Design/methodology/approach
Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) is employed to conduct a systematic literature review from three leading databases including Web of Science (WoS), Scopus and Sage.
Findings
From the review, it can be concluded that the research focuses on two aspects, namely, the built environment and people. The studies in this field are conducted at different scales of the built environment, from macroscale to microscale, including region, city, neighborhood and street-level studies that are conducted around the world including Asia, Europe and America which receive high attention from researchers. Meanwhile, the study of walkability in Australia and Africa gains less attention. It is revealed that there are four factors of walkability including land use and accessibility for macroscale which cover region, city and neighborhood, while street network and pedestrian infrastructure and facility are mainly analyzed for street-level. Most of the studies widely utilize a quantitative approach for analyzing physical walkability factors in a measurement-based approach by using certain tools/software, and a perception-based approach by using questionnaires.
Research limitations/implications
The findings can assist to keep up with the rapid pace of scientific publications and help accelerate the understanding of particular ideas in the field of walkability for the planning and design practice and policy that can be used by researchers/academia, urban designers, urban planners, architects, engineers and policymakers. Also, this study hopefully could assist further research direction for the future and could add value to a more advanced way of understanding the research on walkability.
Originality/value
This research provides a robust framework for walkability trend analysis and a comprehensive understanding of the main ideas from the existing research on walkability worldwide.