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The purpose of this paper is to investigate a novel approach toward electromagnetic launch.

The field of linear electromagnetic acceleration aims at accelerating macroscopic masses (up to several kg) to speeds in excess of 2 km/s. This can be achieved using accelerators of the railgun type. The innovation of this work lies in the use of multiphase current instead of the classically used quasi-direct current (DC). The approach taken is to work out in a first step the potential performance of such a configuration, for example, by showing that a constant propulsive force can be realized. Next, the necessary changes for the system setup were carefully analyzed. Both the accelerator and the power supply have to be considerably modified with regard to the classical approach.

Thorough analysis of the electromagnetic behavior of the launcher including nonlinear effects lead to an innovative system design which is considered to be the main finding of the work presented here. Moreover, a prototype was build. The preliminary experimental results obtained are in very good agreement with corresponding simulations validating the underlying modeling approach.

For the purpose of this paper, power levels of only 450 kVA are considered. However, this research can be used to design more powerful devices in the future.

While DC powered railguns are modeled very well in a variety of papers, the use of multiphase alternating current is not very well discussed yet. It could be of value for launch scenarios, for which very high speeds are required such as the launch of micro satellites to space.

The collective² economic process is always a coherent phenomenon whose lines can be comprehended by the interlocking of its distinguishable elements. Not always, however, does the social whole – be it a modern nation or a “culturally poor” horde – run directly according to a comprehensive, conscious plan, carried out, for the whole, by the whole: Where this is the case – in a completely pure form, it would be in a socialist community – distinguishable tasks, facilities, etc. exist, even if the expression of economic life has not achieved any particular form.³ If, on the contrary, the social whole is leaving the responsibility for economic activity to subgroups or individuals, then the collective production process is separated into units that, seen from the outside, appear independent, autonomous, in principle left to themselves, and forthwith only oriented towards their own concern for survival – enterprises.

This paper is concerned with materials developed to represent and communicate state-commissioned spatial experiments on social media. Our objective is to reveal what such materials can do, even before – or whether–the projects they represent are built. Such materials can constitute an intervention in the way political territory is created, shared and made sense of.

We use empirical research of The Line, a new city set to be built in the Kingdom of Saudi Arabia (KSA), to explore this contention. Our research data is the publicly available visual, textual and audio-visual materials commissioned by The Line’s delivery company to be disseminated on digital platforms. Our methodological approach to these materials is a qualitative content analysis.

The materials do not provide a clear sense of fundamental elements of what The Line as an architectural project actually is. Rather the materials foreground three main tropes that disrupt existing notions of nature, space and temporality. Such disruptions propagate KSA’s official story of transformation as drafted in its Vision 2030. They lead us to understand The Line as a radical experiment to rework the Saudi territory and therefore reflecting the power of the state.

Exploring critically the ways in which material projects are embedded in predominantly visual digital cultural forms that imply architecture – and are compounded by affordances of social media – can illuminate much about how designed environments can be mobilized vis-a-vis political imaginaries.

This study used a visual research approach to investigate how small business (SB) entrepreneurs in Nigeria, a low-income country, perceive digital transformation (DT). The study aims to improve and broaden the understanding of DT by uncovering its metaphors. Making metaphorical sense of DT will increase its knowledge among populations who are unfamiliar with digital technology concepts, as well as communicating and collaborating with them to develop future research and strategies on the subject of DT. This study is significant because scholars have paid little attention to social imaginations of DT depicted through metaphors, more so when considered from a worldview of SBs in low-income countries.

The uniqueness of the research objective motivated the use of social theory to frame the research approach, and picture-elicitation techniques to drive data collection through in-depth interviews with 17 SB entrepreneurs and business owners in Nigeria. Data were analyzed using a content analysis procedure known as metaphor analysis.

The study revealed three metaphors of DT: a drama, a war and a pregnant elephant. A triangulation of the metaphors with English lexicon, extant literature and interview excerpts supported the war and drama perceptions of DT but opposed “DT as a pregnant elephant.”

It argued that the social perception of DT can improve the sustainable, purposeful and successful execution of DT strategies for SB DT. As a result, this study pushes the boundaries of DT, particularly for SB entrepreneurs in low-income countries.

Metaphors pervade our daily lives, not only in our language and communications, but also in how we think and act; as such, they can play an important role in understanding and implementing DT, a concept that has received little attention in the SB settings.

This is one of the first empirical studies to figuratively explain DT and its implications for literature and practice in SB entrepreneurship and information systems domains.