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...techniques used, as well as the design implications and the factors which affect the functionality of the finished parts...This free course, Additive manufacturing, introduces you to its key concepts. It covers the fundamentals of the additive manufacturing (AM) process, the steps involved in creating a model and building an artefact, the materials and techniques used, as...

...technique giving a narrower, deeper weld, or an increased work distance. Process is ideal for automation, since there is no electrical or mechanical contact between the workpiece and electron beam. Small spot size requires a close and accurate fit of components, hence fixturing and beam/workpiece control are critical. Production rates depend on technique used, chamber...

...techniques that preceded CRISPR/Cas9, known as zinc-fingers nucleases (ZFN) and transcription activator-like effectors (TALENs), both fit this description: endonucleases engineered to bind and cut DNA only within the gene of interest. CRISPr/Cas9 makes it easy Although ZFNs and TALENs allowed some important advances to be made, engineering an endonuclease to only bind a...

...technique. The casting slip is a suspension of fine particles (<5 µm) in a liquid medium such as water or alcohol. Additives such as deflocculating agents prevent aggregation of particles. The pH is controlled to achieve a minimum viscosity of the slip by additions of NH4OH, HCl or H2SO4. The slip is poured into a permeable mould at a controlled casting rate such that...

...techniques, including measuring the ‘wobble’ of the parent star as it is tugged to and fro by the orbiting planet, and measuring the ‘wink’ in the star’s light output as the planet passes in front of it. It’s now clear that planets around other stars are ubiquitous – stars are orbited by planets as a rule, rather than the exception. However, these...

...techniques enabling us to observe how activity within the brain changes as different tasks and actions are completed. Read an overview of how these techniques in this brief guide to neuroimaging. And this article on one of the most commonly used techniques, functional magnetic resonance imaging, is also interesting. The brain and your health Many different health...

...techniques they use and give insight into what they hope to achieve. This material forms part of The Open University course S204 Biology: uniformity and diversity... Investigating bacterial communication A short introduction to this album. Discovering bacterial communication With antibiotic resistant bacteria constantly emerging, scientists are trying to find new types of...