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Article
Publication date: 1 June 1997

Thomas Nickell

Describes how engineers from Lockheed Martin, USA, reduced the weight and power draw of an oscillator in an aircraft electrical assembly by using computational fluid dynamics to…

308

Abstract

Describes how engineers from Lockheed Martin, USA, reduced the weight and power draw of an oscillator in an aircraft electrical assembly by using computational fluid dynamics to optimize radiative and natural convective cooling, thereby eliminating the need for a fan within the assembly.

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Aircraft Engineering and Aerospace Technology, vol. 69 no. 3
Type: Research Article
ISSN: 0002-2667

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Publication date: 9 September 2020

Fahad Ahmad

Purpose – This chapter highlights how counter-radicalization, as a manifestation of diffuse securitizing, impacts the work of Muslim civil society organizations (CSOs) in Canada…

Abstract

Purpose – This chapter highlights how counter-radicalization, as a manifestation of diffuse securitizing, impacts the work of Muslim civil society organizations (CSOs) in Canada.

Methodology – The author presents how Muslim communities and their civil society representatives experience and adapt to the pressures from counter-radicalization policies. Data for the analysis are drawn from 16 semi-structured, anonymized interviews with managers and board members of prominent Muslim CSOs that are based in urban centers in Canada with high density of Muslim populations.

Findings – Though counter-radicalization policies are advanced under the rubric of community-orientedness and risk governance, security discourse and practice constructs radicalization as a problem within Muslim communities treating them as suspects who are “potentially radical.” Despite this framing, Muslim CSOs are cooperating with state security agencies in counter-radicalization efforts but are doing so cognizant of the immense power the state exerts over them in such “partnerships.” CSOs are raising questions about the selective nature of security practice which views Muslims as dangerous and violent but fails to fully acknowledge their reality as victims of Islamophobic violence. CSOs are using anti-racism, anti-oppression, and rights-based frames to call out the discriminatory treatment of Muslims under national security.

Originality/Value – The author’s study contributes to a community perspective in counterterrorism and counter-radicalization research that is dominated by analyses from “above.” By sharing the experiences of Canadian Muslim CSOs under counter-radicalization, the author illustrates the practice of “diffuse securitizing” and how it limits the work of civil society in liberal democracies.

Details

Radicalization and Counter-Radicalization
Type: Book
ISBN: 978-1-83982-988-8

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Article
Publication date: 1 June 1985

A well‐established syllabus of fourteen 90‐minutes lecture sessions, over five days, plus practical laboratory demonstrations and discussion (to say nothing of first‐class evening…

17

Abstract

A well‐established syllabus of fourteen 90‐minutes lecture sessions, over five days, plus practical laboratory demonstrations and discussion (to say nothing of first‐class evening entertainment), produced a full house for this year's Industrial Tribology Seminar at Swansea (September 16–20).

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Industrial Lubrication and Tribology, vol. 37 no. 6
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 14 September 2015

Laszlo Sajtos

349

Abstract

Details

Journal of Service Theory and Practice, vol. 25 no. 5
Type: Research Article
ISSN: 2055-6225

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Article
Publication date: 1 April 2001

R.J. Smith, G.J. Lewi and D.H. Yates

Since the development of the Nimonic1 alloys for Sir Frank Whittle’s first jet engine, Henry Wiggin Ltd, now part of Special Metals Corporation, has been involved with the design…

4096

Abstract

Since the development of the Nimonic1 alloys for Sir Frank Whittle’s first jet engine, Henry Wiggin Ltd, now part of Special Metals Corporation, has been involved with the design and improvement of nickel alloys for aerospace engineering. Whilst much of this work continues to be in relation to alloys for the high strength/high temperature applications of turbine blades, discs, seals, rings and casings of aero engines, nickel alloys are being utilised for other key aerospace engineering areas such as tooling for composite manufacture. The focus of this paper is on four recent developments in nickel alloys for aerospace engineering, namely: disc alloys; low expansion superalloys; Inconel alloy 718SPF – a nickel base superalloy capable of being superplastically formed; Nilo (low expansion alloys) for composite tooling.

Details

Aircraft Engineering and Aerospace Technology, vol. 73 no. 2
Type: Research Article
ISSN: 0002-2667

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Available. Open Access. Open Access
Article
Publication date: 31 January 2024

Kilian Fricke, Thomas Bergs, Philipp Ganser and Martin Seimann

The aviation industry has seen consistent growth over the past few decades. To maintain its sustainability and competitiveness, it is important to have a comprehensive…

491

Abstract

Purpose

The aviation industry has seen consistent growth over the past few decades. To maintain its sustainability and competitiveness, it is important to have a comprehensive understanding of the environmental impacts across the entire life cycle of the industry, including materials, processes and resources; manufacturing and production; lifetime services; reuse; end-of-life; and recycling. One important component of aircraft engines, integral rotors known as Blisks, are made of high-value metallic alloys that require complex and resource-intensive manufacturing processes. The purpose of this paper is to assess the ecological and economical impacts generated through Blisk production and thereby identify significant ‘hot-spots’.

Design/methodology/approach

This paper focuses on the methodology and approach for conducting a full-scale Blisk life cycle assessment (LCA) based on ISO 14040/44. Unlike previous papers in the European Aerospace Science Network series, which focused on the first two stages of LCA, this publication delves into the “life cycle impact assessment” and “interpretation” stages, providing an overview of the life cycle inventory modeling, impact category selection and presenting preliminary LCA results for the Blisk manufacturing process chain.

Findings

The result shows that the milled titanium Blisk has a lower CO2 footprint than the milled nickel Blisk, which is less than half of the global warming potential (GWP) of the milled nickel Blisk. A main contributor to GWP arises from raw material production. However, no recycling scenarios were included in the analysis, which will be the topic of further investigations.

Originality/value

The originality of this work lies in the detailed ecological assessment of the manufacturing for complex engine components and the derivation of hot spots as well as potential improvements in terms of eco-footprint reduction throughout the products cradle-to-gate cycle. The LCA results serve as a basis for future approaches of process chain optimisation, use of “greener” materials and individual process improvements.

Details

Aircraft Engineering and Aerospace Technology, vol. 96 no. 1
Type: Research Article
ISSN: 1748-8842

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Article
Publication date: 1 March 1995

Fred‐Eric Hapiak and Nigel Thomas

The battery requirements of aircraft manufacturers and airlines in the 1970s and 1980s were for longer life and ever‐increasing electrical performance in areas such as…

98

Abstract

The battery requirements of aircraft manufacturers and airlines in the 1970s and 1980s were for longer life and ever‐increasing electrical performance in areas such as power‐to‐weight ratio and energy density but, towards the end of the 1980s, a major additional requirement became apparent: a reduction in battery maintenance to reduce direct costs and cut aircraft downtime.

Details

Aircraft Engineering and Aerospace Technology, vol. 67 no. 3
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 18 April 2017

Thomas Kohler and Marco Nickel

The purpose of this paper is to discuss how to sustain crowdsourcing business models. Emerging companies are innovating their business model to rely on a crowd of participants and…

2150

Abstract

Purpose

The purpose of this paper is to discuss how to sustain crowdsourcing business models. Emerging companies are innovating their business model to rely on a crowd of participants and involve contributing users in value capture. While some organizations demonstrate initial success, sustaining a crowdsourcing business model is challenging.

Design/methodology/approach

The study is based on a comparative case study of the prominent crowdsourcing communities Threadless and Quirky. Participatory observation resulted in over 380 analyzed comments.

Findings

Seven lessons from Threadless’s success and Quirky’s failure are discussed to derive implications for sustaining crowdsourcing business models.

Research limitations/implications

Because both cases are integrator platforms build around contests, other crowdsourcing platform types should be studied to enrich the findings.

Practical implications

Managers receive guidance on how to design a sustainable business model that involves the crowd in creating value and lets the crowd participate in value capture.

Originality/value

Current research primarily addresses the question of how companies can take advantage of crowdsourcing and mainly considers corporate value capture. The original contribution of this article is a set of strategies to sustain crowdsourcing platforms by taking a platform’s entire business model into account.

Details

Journal of Business Strategy, vol. 38 no. 2
Type: Research Article
ISSN: 0275-6668

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Article
Publication date: 18 March 2024

Martin David Owens and Elizabeth Johnson

The paper aims to understand how state and non-state domestic terrorism impacts MNEs in foreign markets. Despite the burgeoning literature on terrorism within international…

156

Abstract

Purpose

The paper aims to understand how state and non-state domestic terrorism impacts MNEs in foreign markets. Despite the burgeoning literature on terrorism within international business (IB), most research has focused on international terrorism, or terrorism generally. Consequently, there has been limited research examining how domestic or local based terrorism impacts foreign firms.

Design/methodology/approach

This is a conceptual paper.

Findings

Domestic terrorism is the most common form of terrorism in the world today and involves the state and non-state actors. Non-state domestic terrorism can be low intensity or high intensity. High intensity non-state-domestic terrorism typically involves regular and protracted political violence, along with inter-communal violence. This can expose MNEs to considerable operational, governance and legitimacy pressures.

Originality/value

The paper contributes to the gap in IB terrorism research with regards domestic or local based terrorism. Drawing on IB theory and critical terrorism research, the paper addresses the nature and impact of domestic terrorism within IB. The authors’ paper shows the operational, governance and legitimacy pressures of both state and non-state domestic terrorism for MNEs in host markets. While most IB scholars consider the threat of non-state terrorism for international firms, this study shows how domestic state terrorism benefits and constrains foreign firms.

Details

Critical Perspectives on International Business, vol. 20 no. 4
Type: Research Article
ISSN: 1742-2043

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Article
Publication date: 1 May 1995

Chris Thomas

Tubesales (UK) Limited has been supplying the European aircraft industry with aluminium, titanium, stainless steel, high and nickel alloy products for over 30 years. The Tubesales…

69

Abstract

Tubesales (UK) Limited has been supplying the European aircraft industry with aluminium, titanium, stainless steel, high and nickel alloy products for over 30 years. The Tubesales organization in the USA, operating from over 20 locations throughout the USA and Canada, has a supply history in the USA and the Far East, of more than 50 years.

Details

Aircraft Engineering and Aerospace Technology, vol. 67 no. 5
Type: Research Article
ISSN: 0002-2667

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