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5.7 The story so far

In Act 1 of Landscape with Weapon, Dan, the dentist, has been disturbed by the defence project that his brother is working on. Dan, however, is a fairly mercenary individual, so he feels that having had the idea, Ned should aim for a good return. The company is keen to exploit Ned's work, but Ned has resisted handing over the IP for his invention because he wants to control who gets access to the weapon system that his work has enabled.

In this Act Ned says weapons are empirical,
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5.6 Identification

We end Act 1 with a clear understanding that it is actually too late for Ned to pull out, even if he wanted to: the weapon has been designed. If he were concerned about the military technology, he should really have worried about that before he took on the job. But he does not, at the end of Act 1, want to pull out. He clearly wants to see the project through. Materialising this idea is what he lives for, and he says this is at the cutting edge, this is where technology is. These ideas are go
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5.5 Rhetorical devices

I talked a bit about Ned's motivations, but I am not quite sure about what he is trying to do to be persuasive. He has this interest in aesthetics, but in giving a detailed explanation of a military technology he is working on, he, from time to time, uses an analogy. One analogy he uses is the ‘flocking of starlings’, which illustrates rather the principle of operation of the technology and suggests that it is a kind of an existence proof. It implies this technology might actually work. B
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2.4 Relationships and conduct

Socratic dialogues tend to involve Socrates and just one significant interlocutor at a time. In practice, we have networks of relationships, all of which we value in different ways and which are sustained by conversations that extend over different and long sequences of encounters. Crucially, the actions we take and the conversations we have change those relationships and the value we attribute to them. Therefore, ‘relationships’ constitute yet another thing that we need to look at, somet
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2.3 Style and rhetoric

In the dialogues in Section 2.2, Plato, the author, is trying to point out convincingly the features of a ‘virtuous’ life and, therefore, offers templates for presenting a case with an ethical content.

In looking at the style of the dialogues, most of Protagoras is in the form of a narrative similar to something you might find in a novel, as I suggested earlier. Meno is much more like a play script, but it is noticeable that Meno (the character) mostly agrees with what
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Acknowledgements

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Grateful acknowledgement is made to the following sources for permission to reproduce material within this product.

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6.4 Benefits

  • 7. What are the financial benefits of the proposed change?

  • 8. What are the short-term operational benefits e.g. improvements to the key operations performance objectives?

  • 9. What are the strategic benefits, if any, of the
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4.1 Background to Vue

This section discusses one of four video case studies used in the T883 course to illustrate some basic concepts of operations management covered by the course.

Vue Entertainment is a relatively young organisation, formed in 2003 with the acquisition of 36 cinemas from the Warner Village chain. At the time of writing (October 2007) it currently operates 579 screens and 130,585 seats over 59 cinemas. It sees its approach as firmly based upon its desire to consistently provide ‘the best
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8.4 Stopping the etch

Just as important as being able to remove material is being able to stop doing so once the intended etch depth has been reached. Success or failure in this aspect of etching determines whether or not any of the benefits of parallel processing of thousands of devices will be obtained. Uniformity of result from device to device, and repeatability from wafer to wafer, are crucial to the economic viability of the whole exercise.

There are three broad categories of approach to this problem:<
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7.3 Depositing metals and alloys

Metal layers are used extensively in device fabrication: to carry current for both power and signals, to apply the voltages that control transistors and generate forces for MEMS, as mirrors and optical coatings, and in magnetic devices for recording media. Different applications might require a continuous film, a long track, multiple thin layers or a plug filling a ‘via hole’ through to a buried layer. The electrical properties resulting from micro structure and composition must be contro
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2.3 The fabrication process for a MEMS Pirani sensor

This section is fairly long, but is best read in one go. If you run out of time, reschedule your study to allow you to start again from here.

Thin layers of material are added to the surface by a variety of means, depending on the material to be deposited, and what is already on the wafer.

The sensor starts off, as so many microsensors do, with a silicon wafer, shown in cross section in Author(s): The Open University

7.2 The professional engineer

It has been suggested that there are four main criteria that identify a profession:

Custody of a clearly definable and valuable body of knowledge and understanding associated with a long period of training.

A strong unitary organization which ensures that the profession generally speaks with ‘one voice’.

Clearly defined and rigorous entry standards, backed up by a requirement to register with the profes
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7.1 The engineer and society

Section 2 outlined some of the needs for engineering. Society relies on engineers to create solutions to the problems involved in meeting those needs.

This is a good time to pause and point out that inevitably, in return for all this fun and power, engineers have a responsibility to society. The people who employ our services, directly or indirectly, have to have an assurance that we are working within certain social, safety and ethical boundaries. Particularly given the increasing tren
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Learning outcomes

By the end of this unit you should be able to:

  • critically evaluate disasters and their causes, especially from mechanical or material failures;

  • demonstrate the importance of systematic and rigorous analysis of disasters, so that future failures can be avoided or prevented.


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3.3 Magnetic tape recorders

Experiments showed that the use of paper tape coated with iron oxide particles significantly improved the signal-to-noise ratio and enabled a lower tape speed to be used. A plastic-based version of this magnetic tape, developed by the German company BASF, led to the development of a commercial tape recorder with audio characteristics that could nearly match those of the gramophone record, but not at an economical price. Secret work on tape recorders was undertaken by the Germans throug
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3.1 Introduction

I've an opera here you shan't escape – on miles and miles of recording tape.

Flanders, M. and Swann, D. (1977) ‘The Song of Reproduction’ from The Songs of Michael Flanders and Donald Swann, London, Elm Tree Books and St George's Press, p. 99

Sounds, pictures, measurement data, financial statistics, personal details, etc. can all be recorded and stored on magnetic media, i.e. m
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2.3 Berliner experiments with plates

Emile Berliner was a young German immigrant to the USA with an interest in science. Whilst working in several menial jobs he educated himself in basic physics and chemistry, eventually building a small laboratory at his boarding house. Experiments with electricity and acoustics led to his invention of a new telephone transmitter, which he sold, enabling him to set up as a full-time inventor. He became interested in recording sound through studying a device called the phonoautograph. This appa
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1 Biological materials

Materials engineers have long recognised the impressive range and combination of properties offered by biological materials. Figure 1 shows some representative examples of the combination of tensile strength and toughness (measured by Young's modulus, or elastic modulus for polymers) offered by natural mat
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Introduction

This unit examines how self-assembled structures based on lipids and proteins provide a framework for cellular processes.

This unit is an adapted extract from the Open University course Engineering small worlds: micro and nano technologies (T356).


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Acknowledgements

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Grateful acknowledgement is made to the following sources for permission to reproduce material in this unit:

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