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Article
Publication date: 3 January 2017

Natalia Ratajczyk, Iwona Wagner, Agnieszka Wolanska-Kaminska, Tomasz Jurczak and Maciej Zalewski

The purpose of this paper is to present the varied roles played by the University of Lódz (UL) in maintaining and restoring the natural capital of a city as a driver for…

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Abstract

Purpose

The purpose of this paper is to present the varied roles played by the University of Lódz (UL) in maintaining and restoring the natural capital of a city as a driver for sustainable city development. The higher education institution can be perceived as visionary, originator and executor of natural capital projects.

Design/methodology/approach

The paper analyses three cases performed by the Faculty of Biology and Environmental Protection, UL, in the city of Lódz. The activities are based on different scales ranging from city-wide to local, e.g. river and green infrastructure, and which vary in character from policy planning to implementation.

Findings

Natural capital projects influence city development on different levels: by the initiation of legal protection, by the implementation of rehabilitation concepts for rivers and by influencing the strategic documents for mid-term and long-term urban development.

Originality/value

The university has the potential for multidisciplinary engagement in the development of urban sustainability. In large-scale projects, academics play a more conceptual role, in capacity building and knowledge transfer, while in local-scale implementations, their role includes innovation, know-how and technology transfer. Moreover, it may act as a reinforcement hub, by safeguarding and strengthening the natural capital of the city.

Details

International Journal of Sustainability in Higher Education, vol. 18 no. 1
Type: Research Article
ISSN: 1467-6370

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Article
Publication date: 29 December 2022

Aleksander Olejnik, Piotr Zalewski, Łukasz Kiszkowiak, Robert Rogólski, Adam Dziubiński, Michał Frant, Maciej Majcher and Łukasz Omen

The purpose of this study was to analyze the possibility of using combat aircraft including decommissioned as a platform for launching and carrying space rockets with satellites…

255

Abstract

Purpose

The purpose of this study was to analyze the possibility of using combat aircraft including decommissioned as a platform for launching and carrying space rockets with satellites (nano and microsatellites). Thus, an airborne-launcher-to-space-system may be attractive to countries without ground-based space rocket launch sites.

Design/methodology/approach

For considered launch-to-orbit system configurations, simulations of space rocket effects on aerodynamic characteristics were performed using computational fluid dynamics (CFD ANSYS Fluent) methods. In addition, experimental studies were performed in a wind tunnel to verify the numerical simulations. Discrete models of the aircraft structure were developed for analysis using finite element method (FEM). The analysis of simulated structural properties of the models was carried out to test its stiffness and mass characteristics important for solving the static and dynamic problems of the structure. The validation analyses of aircraft models were based on mass distribution estimation and matching the stiffness properties of the individual airframe structural assemblies.

Findings

The results of numerical analyses and tunnel tests indicate that the influence of carrier rockets on the change of aerodynamic and strength characteristics of the airframe is rather negligible. The aircraft can be used as launching platforms for space rockets. Simulations have indicated that the aircraft will successfully perform a mission of taking away and launching a rocket of at least about 1,000 kg total weight with a 10 kg space payload included.

Practical implications

The combat aircraft can be used as launch platforms for space rockets, and the air/rocket set can become the equivalent of responsive space assets for countries with small space budgets.

Originality/value

The work presents original results obtained by the authors during a preliminary design of a low-cost satellite launch system consisting of a carrier aircraft and a space rocket orbiter. The possibility of using decommissioned combat aircraft as air-launch-to-orbit platforms was taken into consideration. In the absence of aircraft design documentation, reverse engineering methods and techniques were used to develop aircraft geometry and airframe strength structure. Use of CFD, FEM and simulation methods to evaluate system capabilities was demonstrated. Numerical results from CFD simulations were finally verified in experimental tests.

Details

Aircraft Engineering and Aerospace Technology, vol. 95 no. 4
Type: Research Article
ISSN: 1748-8842

Keywords

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Publication date: 17 September 2014

Frédéric Zalewski

This chapter deals with the progressive political mobilisation of peasantry in Poland, its institutionalisation, mainly in inter-war period, and its political appropriation by the…

Abstract

This chapter deals with the progressive political mobilisation of peasantry in Poland, its institutionalisation, mainly in inter-war period, and its political appropriation by the Communist regime after 1945, when State socialism needed to ground itself in Polish national history and political traditions. These various mobilisations could be labelled as ‘populist’ because of their peasantist components and ideological trends, but the chapter considers them rather as a political form of representation, which political uses by actors fluctuate according historical contexts. The first part analyses the emergence of peasant movement and the success of peasant political parties in pre-1939 Poland. The second part shows how formers activists of these parties tried to produce themselves as the only historical heirs of the peasant movement, in opposition to the new, Leninist, peasant party of the Communist Poland. In the third and last part, the chapter analyses how the Communist official peasant party, the ZSL, invented new political traditions, mainly by historicising strategies, in the aim to encapsulate the peasant form of representation in its identity.

Details

The Many Faces of Populism: Current Perspectives
Type: Book
ISBN: 978-1-78350-258-5

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Book part
Publication date: 8 November 2010

Narihiko Ito

In the second half of the 1980s, together with Perestroika in the Soviet Union, a process took place to end the Cold War as a confrontation between the United States of America…

Abstract

In the second half of the 1980s, together with Perestroika in the Soviet Union, a process took place to end the Cold War as a confrontation between the United States of America and the Soviet Union. At the same time, this process caused the collapse of the Soviet Union and socialist system and thereafter the separation and independence of the many nationalities that constituted the Soviet socialist system in the East and South Europe. However to our regret, such nationalities could not enjoy freedom by independence, but went to brutal wars between separated nationalities. Even after many local wars and brutalities we cannot yet find the final solution through peace and justice for peoples.

Details

The National Question and the Question of Crisis
Type: Book
ISBN: 978-0-85724-493-2

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