3,272 research outputs found
Ethics – research, engineering, design… they’re all the same aren’t they?
This paper considers how and to what extent product design ethics is understood by professionals in design practice and undergraduate students of product and engineering design and how, if at all, design ethics differ from engineering and/or research ethics. This paper reports on a study carried out at Bournemouth University with undergraduate students of Engineering Design and Product Design and with design professionals via the Institution of Engineering Designers. As part of their final year project work all undergraduate students at Bournemouth University are required to comply with the Bournemouth University Research Ethics Code of Practice [9] which means that students are aware of ethical principles in general and the study explored the extent to which students understand them in relation to design. The study also used the ‘LinkedIn’ discussion forum to get the perspective of design practitioners. The paper concludes that designers do seem to share a broadly common understanding of design ethics and that the main difference with design ethics is in the scope, complexity and the human interface. A definition of product design ethics is presented and the essence of a Statement of Principles for product design ethics proposed
Perfect bell nozzle parametric and optimization curves
Nozzle contour data for untruncated Bell nozzles with expansion area ratios to 6100 and a specific heat ratio of 1.2 are provided. Curves for optimization of nozzles for maximum thrust coefficient within a given length, surface area, or area ratio are included. The nozzles are two dimensional axisymmetric and calculations were performed using the method of characteristics. Drag due to wall friction was included in the final thrust coefficient
THE SHIFTING SANDS OF SPACE SECURITY: THE POLITICS AND LAW OF THE PEACEFUL USES OF OUTER SPACE
This article argues that the content of the legal term “peaceful purposes,”as used in international space law is changing. Peaceful Purposes as understood throughout the bulk of the Space Age has encompassed not only the UN Charter’s prohibitions on the use of force, but also a number of customary international law principles that enhanced it beyond mere non-aggression. Through an examination of state practice with regards to the military uses of outer space, this article concludes that the legal content of peaceful purposes is eroding towards an alignment with “non-aggressive” as understood in the law concerning the use of force. Specifically, this article argues that geopolitical and technological changes are encouraging states to pursue disruption in the space environment rather than stability, and this has been matched with state practice and rhetoric that exhibits that states are moving toward more offensive, rather than defensive, stances in the space environment
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