Description

This sample is a casting alloy of eutectic composition. From the melt a eutectic is formed between aluminium solid solution and virtually pure silicon. Slow solidification produces a very coarse microstructure. The eutectic comprises large plates of silicon in the aluminium matrix. This microstructure displays poor ductility due to the brittleness of large silicon plates. The microstructure is normally refined through either rapid solidification, which lets the silicon phase assume a fibrous form, or by a process known as modification.It may be noted that primary aluminium dendrites can be seen, although the composition is very close to the eutectic point and an entirely eutectic microstructure might thus have been expected. This effect is a consequence of the strongly skewed nature of th

Subjects

alloy | aluminium | eutectic | metal | modification | silicon | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

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An example of a white cast iron, so named due to its relatively low carbon content, which means that the carbon present is in the form of cementite. Upon cooling the melt initially forms austenite dendrites and ledeburite. The dendrites then transform to pearlite, and the ledeburite to ferrite and cementite.

Subjects

alloy | carbon | iron | metal | white cast iron | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

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Above their melting point, liquid crystalline polymers exhibit a mesophase within which, although able to flow and are not arranged in a crystal, they exhibit long range orientational order. This molecular alignment can be exploited to make high strength and stiffness fibres such as Kevlar, or even mouldable thermotropics such as Vectra. Molecular alignment can also be controlled by an external applied field; a property exploited in liquid crystal displays. This specimen has not had a magnetic field applied to it and it exhibits only local molecular self-alignment, without any overall orientation alignment. It is to be compared with a similar sample which has been subjected to a magnetic field of 1.1T for one hour and in which there is a high level of fibrillar alignment.

Subjects

alignment | fibre | fibrillation | fracture | liquid crystalline polymer (LCP) | lyotropic | magnetic | nematic | polymer | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

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This set consists of an animation explaning Nabarro-Herring creep and Coble creep, and the simulation of a creeping coil experiment. From TLP: Creep Deformation of Metals

Subjects

creep | Coble creep | Nabarro-Herring creep | diffusion | dislocations | dislocation creep | stress exponent | activation energy | mechanical properties | turbine blades | nickel superalloys | solder | single crystals | DoITPoMS | University of Cambridge | animation | corematerials | ukoer

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Composer: John Ross Publication details: London: printed and sold by L. Lavenu, ca.1807-9 Catalogue reference: 781.4 ROS Full score available on IMSLP: imslp.org/wiki/Special:ReverseLookup/364380

Subjects

sheetmusic | johnross | aberdeen | bridgememoriallibrary

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Towing the aftpart of the tanker ?Rondefjell? away after launch, 1951 (TWAM ref. DS.CR/4/PH/1/233/2/6). The vessel was launched in two halves by John Crown & Sons Ltd and then joined together on the River Tyne. Tyne & Wear Archives is proud to present a selection of images from its Sunderland shipbuilding collections. The set has been produced to celebrate Sunderland History Fair on 7 June 2014. It's a reminder of the thousands of vessels launched on the River Wear and the many outstanding achievements of Sunderland?s shipyards and their workers. These photographs reflect Sunderland?s history of innovation in shipbuilding and marine engineering from the development of turret ships in the 1890s through to the design for SD14s in the 1960s. The Sunderland shipbuilding collections are full of fascinating stories. Some of these are represented in this set, such as the ?Rondefjell?, launched in two halves on the River Wear by John Crown & Sons Ltd and then joined together on the River Tyne. The set also shows the vital part that Sunderland?s shipbuilding industry played during the First World War. William Doxford & Sons Ltd built Royal Naval destroyers such as HMS Opal, which served in the Battle of Jutland, while other yards constructed cargo ships to help keep these shores supplied. (Copyright) We're happy for you to share these digital images within the spirit of The Commons. Please cite 'Tyne & Wear Archives & Museums' when reusing. Certain restrictions on high quality reproductions and commercial use of the original physical version apply though; if you're unsure please email archives@twmuseums.org.uk

Subjects

shipbuilding | sunderland | johncrownsonsltd | rondefjell | halfcrownship | cargoship | shiplaunches | tugboat | shipyard | blackandwhitephotograph | towing | aftpart | tanker | vessel | industrialheritage | maritime | buildings | crane | windows | roof | water | afterlaunch | 1951 | launched | twohalves | joinedtogether | riverwear | sunderlandhistoryfair | 7june2014 | workers | marineengineering | bolts | steel | chimney | beacon | wheel | wall | frame | structure | observing | barrier | post | porthole | industry | still | calm | striking | timber | mast | arch | imposing | impossing | clearsky | bank | deck

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Reproduction ID: P07466 Maker: Unknown Date: circa 1880

Subjects

nationalmaritimemuseum | ship | warship | royalnavy | rn | hmspresident1829 | hmspresident | 58gunfrigate | frigate | royalnavyreserve | rnr | drillship | westindiadocks | hmsoldpresident | oldpresident | figurehead

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Reproduction ID: P07946 Maker: Unknown Date: 1887

Subjects

nationalmaritimemuseum | dog

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Health Experiences Institute/Management in Medicine (HEXI/MiM) speaker event. Patient experience has become an important currency and resource in contemporary health care management. User satisfaction surveys, focus groups, Patient Experience Trackers (PET), Patient Reported Outcome Measures (PROMS) -- a whole range of technologies have been developed to turn sensations, thoughts and feelings into 'evidence' and useful knowledge. In this seminar, we will have a closer look at one of these technologies: web-based patient feedback. Combining insights from research and practice, we will ask: what does it take to mobilise experience? Can patient stories improve the quality of care? What are the implications? And what issues does this raise for NHS leaders and policy makers? Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Subjects

healthcare | patient care | healthcare | patient care | 2012-11-12

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Image from ?[The Holy City: or, historical and topographical notices of Jerusalem; with some account of its antiquities and of its present condition.]?, 003932749 Author: WILLIAMS, George B.D., Fellow of King?s College, Cambridge Volume: 02 Page: 461 Year: 1849 Place: London Publisher: View this image on Flickr View all the images from this book Following the link above will take you to the British Library?s integrated catalogue. You will be able to download a PDF of the book this image is taken from, as well as view the pages up close with the ?itemViewer?. Click on the 'related items? to search for the electronic version of this work. Open the page in the British Library?s itemViewer (page: 000461) Download the PDF for this book

Subjects

bldigital | bl_labs | britishlibrary | 1849 | similar_to_168287160057_slantyness | similar_to_168287160057_bubblyness_avesize | similar_to_168287160057_bubblyness_x

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Image from ?Journeys in North China, Manchuria, and Eastern Mongolia; with some account of Corea. ? With illustrations and ? maps?, 003937761 Author: WILLIAMSON, Alexander Rev Volume: 01 Page: 324 Year: 1870 Place: London Publisher: View this image on Flickr View all the images from this book Following the link above will take you to the British Library?s integrated catalogue. You will be able to download a PDF of the book this image is taken from, as well as view the pages up close with the 'itemViewer?. Click on the 'related items? to search for the electronic version of this work. Open the page in the British Library?s itemViewer (page: 000324) Download the PDF for this book

Subjects

bldigital | bl_labs | britishlibrary | 1870 | similar_to_171471432157_place_of_publishing | similar_to_171471432157_published_date | similar_to_171471432157_slantyness | fullbody_detected_1left_1100top_69right_1235bottom

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Image from ?The works of ? Sir C. H. W. ? from the originals in the possession of his Grandson, the ? Earl of Essex. ? With notes by H. Walpole, Earl of Orford?, 003931493 Author: WILLIAMS, Charles Hanbury Sir, K.B Page: 565 Year: 1822 Place: London Publisher: View all the images from this book Following the link above will take you to the British Library?s integrated catalogue. You will be able to download a PDF of the book this image is taken from, as well as view the pages up close with the 'itemViewer?. Click on the 'related items? to search for the electronic version of this work.

Subjects

bldigital | bl_labs | britishlibrary | 1822 | similar_to_110421657657_place_of_publishing | similar_to_110421657657_slantyness | similar_to_110421657657_bubblyness_y

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The Learner Group and Implications for Practice workshop training materials were produced by the Profound and Complex Needs project for Scotland's Colleges. These are available to be used by college teams as you would find appropriate. Originally intended to be run over half a day, in almost all cases they can be split into one or one and a half hour sessions, according to the time available. Each pack contains (a detailed training plan, a PowerPoint presentation, a set of handout materials and other additional resources).

Subjects

learner group | training materials | workshop materials | complex needs | implications for practice | profound and complex needs | EDUCATION / TRAINING / TEACHING | SCQF Level 1 | G

License

Attribution-Noncommercial 2.0 UK: England & Wales Attribution-Noncommercial 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc/2.0/uk/ http://creativecommons.org/licenses/by-nc/2.0/uk/

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This course looks at the history of avant-garde and electronic music from the early twentieth century to the present. The class is organized as a theory and production seminar for which students may either produce audio/multimedia projects or a research paper. It engages music scholarship, cultural criticism, studio production, and multi-media development, such as recent software, sound design for film and games, and sound installation. Sound as a media tool for communication and sound as a form of artistic expression are subjects under discussion. The artists' work reviewed in the course includes selections from audio innovators such as the Italian Futurists, Edgard Varèse, John Cage, King Tubby, Brian Eno, Steve Reich, Afrika Bambaataa, Kraftwerk, Merzbow, Aphex Twin, Rza, Björk, and

Subjects

popular culture | contemporary music | rock | rap | electronic music | electronica | sampling | noise | audio | avant-garde | music criticism | studio production | podcast | mashup | collage | tape loop | DJ | synthesizer | music synthesis | drum machine | music concrete

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see https://ocw.mit.edu/terms/index.htm

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Description

This sample is a casting alloy of eutectic composition. The microstructure has been refined by modification through the addition of a small amount of sodium to the alloy composition. The large silicon plates have been altered to a more favourable fibrous form, leading to an enhancement of the mechanical properties due to the refinement of the microstructure. There is also a change to a planar interface during solidification, which minimises porosity in the casting.

Subjects

alloy | aluminium | eutectic | metal | modification | refined microstructure | silicon | sodium | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

License

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An example of a white cast iron, so named due to its relatively low carbon content, which means that the carbon present is in the form of cementite. Upon cooling the melt initially forms austenite dendrites and ledeburite. The dendrites then transform to pearlite, and the ledeburite to ferrite and cementite.

Subjects

alloy | carbon | iron | metal | white cast iron | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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Above their melting point, liquid crystalline polymers exhibit a mesophase within which, although able to flow and are not arranged in a crystal, they exhibit long range orientational order. This molecular alignment can be exploited to make high strength and stiffness fibres such as Kevlar, or even mouldable thermotropics such as Vectra. Molecular alignment can also be controlled by an external applied field; a property exploited in liquid crystal displays. This specimen has not had a magnetic field applied to it and it exhibits only local molecular self-alignment, without any overall orientation alignment. It is to be compared with a similar sample which has been subjected to a magnetic field of 1.1T for one hour and in which there is a high level of fibrillar alignment.

Subjects

alignment | fibre | fibrillation | fracture | liquid crystalline polymer (LCP) | lyotropic | magnetic | nematic | polymer | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

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This set of animations introduces the principles of deformation of honeycombs and foams. From TLP: Deformation of Honeycombs and Foams

Subjects

open cell foam | honeycomb | honeycombe | relative density | Youngs modulus | Young modulus | yield stress | densification | strut bending | cellular structures | cellular structure | DoITPoMS | University of Cambridge | animation | corematerials | ukoer

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Launch of the tanker ?Borgsten?, built by J.L. Thompson & Sons Ltd, North Sands, 1 November 1963 (TWAM ref. DS.JLT/4/PH/1/709/3/3). Tyne & Wear Archives is proud to present a selection of images from its Sunderland shipbuilding collections. The set has been produced to celebrate Sunderland History Fair on 7 June 2014. It's a reminder of the thousands of vessels launched on the River Wear and the many outstanding achievements of Sunderland?s shipyards and their workers. These photographs reflect Sunderland?s history of innovation in shipbuilding and marine engineering from the development of turret ships in the 1890s through to the design for SD14s in the 1960s. The Sunderland shipbuilding collections are full of fascinating stories. Some of these are represented in this set, such as the ?Rondefjell?, launched in two halves on the River Wear by John Crown & Sons Ltd and then joined together on the River Tyne. The set also shows the vital part that Sunderland?s shipbuilding industry played during the First World War. William Doxford & Sons Ltd built Royal Naval destroyers such as HMS Opal, which served in the Battle of Jutland, while other yards constructed cargo ships to help keep these shores supplied. (Copyright) We're happy for you to share these digital images within the spirit of The Commons. Please cite 'Tyne & Wear Archives & Museums' when reusing. Certain restrictions on high quality reproductions and commercial use of the original physical version apply though; if you're unsure please email archives@twmuseums.org.uk

Subjects

sunderland | shipbuilding | borgsten | jlthompsonsonsltd | shiplaunches | northsandssunderland | shipyard | tanker | blackandwhitephotograph | maritimeheritage | industry | humanity | crane | water | flags | sunderlandhistoryfair | 7june2014 | cargo | riverwear | launch | northsands | 1november1963 | marineengineering | workers | supply | letters | channel | buildings | platform | structure | frame | windows | roof | walls | stairs | hats | coat | trousers | shirt | boots | timber | pipes | chain | pattern | industrial | piles | observing | momentous | unusual | surreal | barrier | released | vessel | poignant | vision | beacon | path | standing | still

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Reproduction ID: N02160 Maker: Unknown Date: 1906

Subjects

nationalmaritimemuseum | ship | warship | royalnavy | rn | hmsteviot | teviot | riverclass | eclass | ribbletype | torpedoboatdestroyer | destroyer

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Image from ?[Outlines of Geology ? Together with an examination of the question, Whether the days of creation were indefinite periods. Designed for the use of schools and general readers.]?, 000759560 Author: COMSTOCK, John Lee. Page: 137 Year: 1845 Place: New-York Publisher: Pratt, Woodford & Co. View this image on Flickr View all the images from this book Following the link above will take you to the British Library?s integrated catalogue. You will be able to download a PDF of the book this image is taken from, as well as view the pages up close with the ?itemViewer?. Click on the 'related items? to search for the electronic version of this work. Open the page in the British Library?s itemViewer (page: 000137) Download the PDF for this book

Subjects

bldigital | bl_labs | britishlibrary | 1845 | similar_to_134362859047_slantyness | similar_to_134362859047_bubblyness_avesize | similar_to_134362859047_bubblyness_y

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This class explores the development of Hollywood Film Noir. There will be a focus on émigré directors who moved to Hollywood when the Nazis rose to power. Assignments will include short response papers about three of the films in the series, and reports by students on examples of "neo-noir" films from recent decades.This course is offered during the Independent Activities Period (IAP), which is a special 4-week term at MIT that runs from the first week of January until the end of the month.

Subjects

film noir | music | film music | Fritz Lang | Orson Welles | Billy Wilder | noir | neo-noir

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see https://ocw.mit.edu/terms/index.htm

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Description

This sample is a casting alloy of eutectic composition. The microstructure has been refined by modification through the addition of a small amount of sodium to the alloy composition. The large silicon plates have been altered to a more favourable fibrous form, leading to an enhancement of the mechanical properties due to the refinement of the microstructure. There is also a change to a planar interface during solidification, which minimises porosity in the casting.

Subjects

alloy | aluminium | eutectic | metal | modification | refined microstructure | silicon | sodium | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

License

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An example of a white cast iron, so named due to its relatively low carbon content, which means that the carbon present is in the form of cementite. Upon cooling the melt initially forms austenite dendrites and ledeburite. The dendrites then transform to pearlite, and the ledeburite to ferrite and cementite.

Subjects

alloy | carbon | iron | metal | white cast iron | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

License

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Carbon nanotubes are a long, tubular form of carbon that has an extremely high surface area. Conducting polymers, as their name suggests, are a group of polymers that exhibit excellent electrical conductivity, in some cases reaching that of copper.

Subjects

alignment | carbon | carbon nanotube | coating | conducting polymer | nanotube | polymer | polypyrrole | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

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