4.1 Beginnings

Systems engineering has its roots in three linked strands of thinking: the concepts of systems science, engineering and public policy problem resolution. The first of these can be traced back to the work of von Bertalanffy (1968, pp. 8–15, 96–98) and others during the 1920s and 1930s but received a significant impetus when, in 1954, the Society for General Systems Theory was established at the annual meeting of the American Association for the Advancement of Science. The society later cha
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3.11 Summary

This topic has introduced the systems approach, which is the foundation of systems engineering. The systems approach consists of three elements.

  • A set of concepts that can be used to understand the structural and dynamic features of operations systems.

  • Methodologies for managing change. Two current methodologies have been presented: the hard systems approach can be applied in situations where there is a measure of agreement about the
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Introduction

This unit starts by giving an overview of the two main categories of disasters: disasters of natural origin and disasters of human origin. It then analyses the Tay Bridge disaster, which was caused by mechanical failure.

Inevitably, human factors emerge as important in many major disasters. They may involve the failure by engineers, designers or managers to recognise faults in safety-critical products, or managers overriding the design team for other reasons – such as keeping to a dea
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References

Barham, P. (1997) Closing the Asylum: The Mental Patient in Modern Society, London, Penguin.
Barnes, M. and Walker, A. (1996) ‘Consumerism versus Empowerment: a principled approach to the involvement of older service users’, Policy and Politics, 24 (4) pp.375–93.
Blofeld, J. (2003) Independent Inquiry into the Death of David Bennett, Cambridge
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2.1 An evidence-based enterprise

We have seen that psychology is an evidence-based enterprise and we have also seen that disputes about what should count as evidence have had an important impact on the development of psychology as a discipline. For example, the rise of behaviourism was driven by the idea that only observable behaviour is legitimate data for psychology because only data that can be observed by others, and agreed upon, can be objective. Many other disciplines have had less trouble with this issue
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6.1 Why is resonance important?

This section aims to take you through some general ideas about vibrations, which will help you understand the principles behind the resonant behaviour of the AFM probe tip. Vibrations and oscillations crop up in many contexts. They can be modelled mathematically and form a general topic in mathematics about vibrations and oscillations in which the appropriate balances between forces and accelerations are formulated into differential equations.

Students of physics and chemistry also get
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Getting Started: 09 Working with sound
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There are several different browsers in widespread use today and multiple versions of those browsers can create unique challenges for web developers. In this video Rey and Chris discuss how to create great cross-browser experiences and some of the testing tools that can help make that simpler.

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