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Article
Publication date: 11 July 2016

Romana Berariu, Christian Fikar, Manfred Gronalt and Patrick Hirsch

The purpose of this paper is to present a system dynamics (SD) model that allows one to simulate resource deployment to fulfill increasing needs for commodities such as…

Abstract

Purpose

The purpose of this paper is to present a system dynamics (SD) model that allows one to simulate resource deployment to fulfill increasing needs for commodities such as food and other consumables during disaster situations. The focus is on managing a suddenly increased demand (hoarding behavior) of an affected population under restricted transport conditions. The model aims to support decision makers by fostering comprehension of the systemic behavior and interdependencies of those complex settings.

Design/methodology/approach

Through literature review and case study analyses the SD model was established and implemented with STELLA 10.1.1.

Findings

The needs of relief units for response operations and supply of evacuees in the affected region result in conflicting needs under limited transport conditions during disaster situations. Therefore, uncertainties and dynamic parameters as, e.g., occurring delays, limited information, or delivery constraints and their influence on resource deployment under a sudden demand, have been identified and incorporated in this work. The authors found that an oscillating behavior within the system is possible to occur and is more intensified in case of regarding the additional needs of evacuees and relief units.

Research limitations/implications

Due to the high level of abstraction, it is not possible to incorporate all influencing variables in the SD model. Therefore, the authors focused on the most important ones with regard to the model objective.

Practical implications

To focus on awareness raising is of importance for decision makers in the context of disaster management. Furthermore, the authors found that the oscillating behavior is more irregular in case of assuming a higher increase rate of the water gauge than if a low increase rate is assumed.

Originality/value

To the best of the authors’ knowledge, none of the work already done refers to providing a flood-prone area with commodities under consideration of a sudden demand, by applying the SD approach. The presented model contributes on the generation of systemic insights of resource deployment under consideration of conflicting needs in times of a river flood to support decision makers in those situations.

Details

Disaster Prevention and Management: An International Journal, vol. 25 no. 5
Type: Research Article
ISSN: 0965-3562

Keywords

Article
Publication date: 1 February 1931

Manfred Christian

THE Argus aero‐engine “As 8” with its triple victory in the “Challenge de Tourisme International 1930,” gained an important triumph.

Abstract

THE Argus aero‐engine “As 8” with its triple victory in the “Challenge de Tourisme International 1930,” gained an important triumph.

Details

Aircraft Engineering and Aerospace Technology, vol. 3 no. 2
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 1 September 1931

G.H. Handasyde

THE Cirrus‐Hermes Engineering Company's products derive a special interest from the fact that they were the first to be produced to meet the demand for the light type of…

Abstract

THE Cirrus‐Hermes Engineering Company's products derive a special interest from the fact that they were the first to be produced to meet the demand for the light type of aeroplane, and from 1924 to the present time the firm has concentrated entirely on the production of a 4‐cylinder air‐cooled engine which differs only in size and in detail improvements from the first model.

Details

Aircraft Engineering and Aerospace Technology, vol. 3 no. 9
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 12 October 2012

Shuang Yu, Jun Miao, Hua Wang and Zhiyuan Qian

The purpose of this paper is to find the root cause of the current issue for a scan drive mechanism which is used to drive and to control the Microwave Radiometer Imager…

Abstract

Purpose

The purpose of this paper is to find the root cause of the current issue for a scan drive mechanism which is used to drive and to control the Microwave Radiometer Imager (MWRI) equipment of the FY‐3 meteorological satellite in China.

Design/methodology/approach

In order to find the root cause of the irregularly unstable motor current, some possible reasons for this anomaly, including satellite dynamic, telemetry, electronics and mechanism system, are investigated. The root cause is focused on the mechanism that is increasing friction caused by limitation rollers striking the rotating part from time to time, which has been verified by simulation and test.

Findings

Findings gained from the simulations and tests results were: for a rotational space mechanism with high velocity accuracy requirement, if the moment of inertial (MOI) of the load is quite large, the balance is the key factor to the equipment performance. Moreover, thermal gradient and temperature difference are also important factors, especially to the space mechanism with large dimensions. Even a very small thermal deformation can lead to quite a number of unexpected results.

Practical implications

The better performance of the next optimized MWRI equipment in orbit showed that the performed measures are very effective and useful. The experience gained in settling this issue can be used for the design of a space scanning mechanism with high rotating speed and high accuracy.

Originality/value

The paper is an original work for the authors. The issue has not been found in the related literatures. It is based on research work on an engineering problem of unstable current issue, which is significant to the MWRI payload of the FY‐3 satellite.

Details

Aircraft Engineering and Aerospace Technology, vol. 84 no. 6
Type: Research Article
ISSN: 0002-2667

Keywords

Expert briefing
Publication date: 15 October 2018

The governing Christian Social Union (CSU), sister party of Chancellor Angela Merkel’s Christian Democrats (CDU), suffered a serious blow in Bavaria's October 14 federal…

Details

DOI: 10.1108/OXAN-DB239166

ISSN: 2633-304X

Keywords

Geographic
Topical
Article
Publication date: 14 August 2017

Ayhan Aydogdu, Serhat Burmaoglu, Ozcan Saritas and Serhat Cakir

Technologies are constantly developed to address new demands and provide further opportunities. Owing to a number of potential application areas of nanotechnologies within…

Abstract

Purpose

Technologies are constantly developed to address new demands and provide further opportunities. Owing to a number of potential application areas of nanotechnologies within this sector, the purpose of this study is to take defense as a case and propose a strategic roadmap for the use of nanotechnologies in the Turkish Defense Industry.

Design/methodology/approach

The study presented in this paper uses a bibliometric analysis of the most cited publications in the past decade with the aim of identifying the trends in the development of nanotechnology. Interviews were carried out with experts based on the featured words of bibliometric analysis (nanoparticles, nanostructure, self-assembly, drug delivery, graphene, etc.) to reveal the commercialization time of nanotechnology products and applications. After that, a survey was carried out with engineers for determining the possible emergence time of nanotechnology applications and/or products used in military up to year 2035. Finally, a roadmap was created based on the obtained data from bibliometric analysis, interviews and survey results.

Findings

Nanotechnology roadmap was prepared, one which would contribute to the preparation of the defense industry for the future and help in keeping up with technological developments.

Research limitations/implications

Because of the chosen research approach, the research results may lack generalizability. Therefore, researchers are encouraged to test the proposed propositions further. Interviews and surveys have limitation with the bounded rationality of corresponders.

Practical implications

The paper proposed a nanotechnology roadmap for the defense sector with a data-led foresight practice.

Originality/value

Performing such a study is considered to be crucial for the armies of developed and developing countries, so that the military sector also avails benefits from this revolutionary technology. Quantitative and qualitative methods were mixed for developing the roadmap.

Details

foresight, vol. 19 no. 4
Type: Research Article
ISSN: 1463-6689

Keywords

Book part
Publication date: 23 August 2011

Marko Sarstedt, Manfred Schwaiger and Charles R. Taylor

“Garbage in, garbage out” is a common expression that academics and practitioners use to emphasize that empirical analysis is only as good as the basis on which it relies…

Abstract

“Garbage in, garbage out” is a common expression that academics and practitioners use to emphasize that empirical analysis is only as good as the basis on which it relies. Although the importance of sound data and valid measures has long been acknowledged, it is nevertheless often problematic to follow required quality standards in concrete research situations. Potential sources of error are usually unknown, methods to ensure data quality are unavailable, and existing methods for scale development, index construction, data collection, and data analysis are insufficient or erroneously applied. This is especially true of international marketing research, which often makes great demands on the data and measures used, as well as on the research methodology applied. Against this background, this volume addresses issues pertaining to measurement and research methodology in an international marketing context. Thanks to the efforts of authors and reviewers, we are pleased to present nine articles that deal with cutting-edge topics such as formative measurement, response-bias in cross-cultural research, marketing efficiency measurement, and segmentation methods.

Details

Measurement and Research Methods in International Marketing
Type: Book
ISBN: 978-1-78052-095-7

Content available
Book part
Publication date: 7 October 2020

Helen Thompson

Both the ideals of the European Union (EU) and the EU's recent political difficulties have attracted comparison with the Habsburg empire. In recent years, some of those…

Abstract

Both the ideals of the European Union (EU) and the EU's recent political difficulties have attracted comparison with the Habsburg empire. In recent years, some of those making comparison have turned to the Austrian Jewish novelists, Stefan Zweig and Joseph Roth, who were crucial to the imaginative emergence of the Habsburg Myth. This paper analyses their writings and those of Robert Musil and Gregor von Rezzori in relation to the Habsburg Myth as a story about European unity, about Austria-Hungary as a supranational polity and about Austria-Hungary's self-proclaimed providential purpose in European affairs. It explores the dissonance between the Habsburg Myth and the EU's territorial composition and argues that the Habsburg Myth is, nonetheless, revealing about the EU's internal hierarchies and its geopolitical difficulties in relation to Russia.

Expert briefing
Publication date: 21 May 2019

Germany's foreign policy.

Article
Publication date: 19 August 2021

Jan G. Langhof and Stefan Gueldenberg

The article aims at examining the ethical limits and risks of servant leadership. During the Second World War, the German army officer Colonel Claus von Stauffenberg is a…

Abstract

Purpose

The article aims at examining the ethical limits and risks of servant leadership. During the Second World War, the German army officer Colonel Claus von Stauffenberg is a loyal servant to his nation and homeland. But when he learns about the Nazis’ mass murders and crimes, he begins to have doubts about whom he should serve. Being confronted with numerous moral dilemmas, he finally decides to join a resistance group. Of course, Stauffenberg's situation as colonel and leader was an extreme case. Time and again, however, managers and leaders are faced with similar dilemmas. Indeed, the current COVID-19-crisis shows that even today’s leaders are repeatedly faced with almost insoluble dilemmas. The recent literature about ethics and leadership suggests a philosophy which is almost portrayed as a panacea to any ethical issues: servant leadership (SL). This study, however, questions the commonly held view that SL is always ethical. The purpose of our historical case study is twofold. First, this study explores the ethical challenges Stauffenberg (and other officers) faced and how they dealt with them. Second, this study elaborates on what responses (if any) SL would provide to these challenges.

Design/methodology/approach

The applied method is a historical case study, in which the authors draw on a plethora of secondary literature, including books, reports, and articles.

Findings

By analyzing the historical case of “Operation Valkyrie,” this study elaborated and identified risks and limitations of SL and pointed out ways to address these risks. In particular, SL poses risks in the case of a too narrow understanding of the term “service.”

Originality/value

While other leadership styles, e.g. transformational leadership or charismatic leadership, have been extensively studied with regard to ethical risks, in the case of SL possible risks and limitations are still largely unexplored.

Details

Journal of Management History, vol. 27 no. 4
Type: Research Article
ISSN: 1751-1348

Keywords

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