Searching for distortion : 22 results found | RSS Feed for this search

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Tensile failure surface of a carbon fibre composite

Description

This is from the region of the fracture surface which was in tension. The fibres show clean, brittle fracture surfaces (with no fibrillation or distortion and little distortion of the matrix) and have broken at varying lengths and hence some stick out while others have left holes in the matrix. This is indicative of fibre pull-out having occurred after an initial failure of the matrix, followed by failure of the fibres themselves. This is a toughening mechanism in fibre reinforced composites. It is also involved in composite crack stopping properties; each fibre has briefly slowed the progress of the crack by opening it up along the weak fibre-matrix interface and hence blunting the crack tip. The crack therefore advances relatively slowly, with much lateral meandering.

Subjects

alignment | carbon | carbon fibres | CFC | composite material | epoxy | fibre | fracture | neutral axis | polymer composite | pull-out | reinforcement | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

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Economics explains discrimination in the labour market Economics explains discrimination in the labour market

Description

Discrimination in the labour market exists in many forms: the 'glass ceiling', ageism, racism, and so on. This free course, Economics explains discrimination in the labour market, will help you look at this problem from a new perspective: through economics. You will learn how economists have tried to understand what drives this distortion of the labour market and why women and those from minority ethnic groups seem to suffer the most. First published on Thu, 14 Jul 2011 as Economics explains discrimination in the labour market. To find out more visit The Open University's Openlearn website. Creative-Commons 2011 Discrimination in the labour market exists in many forms: the 'glass ceiling', ageism, racism, and so on. This free course, Economics explains discrimination in the labour market, will help you look at this problem from a new perspective: through economics. You will learn how economists have tried to understand what drives this distortion of the labour market and why women and those from minority ethnic groups seem to suffer the most. First published on Thu, 14 Jul 2011 as Economics explains discrimination in the labour market. To find out more visit The Open University's Openlearn website. Creative-Commons 2011

Subjects

Economics | Economics | discrimination | discrimination

License

Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Licence Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

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18.327 Wavelets, Filter Banks and Applications (MIT) 18.327 Wavelets, Filter Banks and Applications (MIT)

Description

Wavelets are localized basis functions, good for representing short-time events. The coefficients at each scale are filtered and subsampled to give coefficients at the next scale. This is Mallat's pyramid algorithm for multiresolution, connecting wavelets to filter banks. Wavelets and multiscale algorithms for compression and signal/image processing are developed. Subject is project-based for engineering and scientific applications. Wavelets are localized basis functions, good for representing short-time events. The coefficients at each scale are filtered and subsampled to give coefficients at the next scale. This is Mallat's pyramid algorithm for multiresolution, connecting wavelets to filter banks. Wavelets and multiscale algorithms for compression and signal/image processing are developed. Subject is project-based for engineering and scientific applications.

Subjects

Discrete-time filters | Discrete-time filters | convolution | convolution | Fourier transform | Fourier transform | owpass and highpass filters | owpass and highpass filters | Sampling rate change operations | Sampling rate change operations | upsampling and downsampling | upsampling and downsampling | ractional sampling | ractional sampling | interpolation | interpolation | Filter Banks | Filter Banks | time domain (Haar example) and frequency domain | time domain (Haar example) and frequency domain | conditions for alias cancellation and no distortion | conditions for alias cancellation and no distortion | perfect reconstruction | perfect reconstruction | halfband filters and possible factorizations | halfband filters and possible factorizations | Modulation and polyphase representations | Modulation and polyphase representations | Noble identities | Noble identities | block Toeplitz matrices and block z-transforms | block Toeplitz matrices and block z-transforms | polyphase examples | polyphase examples | Matlab wavelet toolbox | Matlab wavelet toolbox | Orthogonal filter banks | Orthogonal filter banks | paraunitary matrices | paraunitary matrices | orthogonality condition (Condition O) in the time domain | orthogonality condition (Condition O) in the time domain | modulation domain and polyphase domain | modulation domain and polyphase domain | Maxflat filters | Maxflat filters | Daubechies and Meyer formulas | Daubechies and Meyer formulas | Spectral factorization | Spectral factorization | Multiresolution Analysis (MRA) | Multiresolution Analysis (MRA) | requirements for MRA | requirements for MRA | nested spaces and complementary spaces; scaling functions and wavelets | nested spaces and complementary spaces; scaling functions and wavelets | Refinement equation | Refinement equation | iterative and recursive solution techniques | iterative and recursive solution techniques | infinite product formula | infinite product formula | filter bank approach for computing scaling functions and wavelets | filter bank approach for computing scaling functions and wavelets | Orthogonal wavelet bases | Orthogonal wavelet bases | connection to orthogonal filters | connection to orthogonal filters | orthogonality in the frequency domain | orthogonality in the frequency domain | Biorthogonal wavelet bases | Biorthogonal wavelet bases | Mallat pyramid algorithm | Mallat pyramid algorithm | Accuracy of wavelet approximations (Condition A) | Accuracy of wavelet approximations (Condition A) | vanishing moments | vanishing moments | polynomial cancellation in filter banks | polynomial cancellation in filter banks | Smoothness of wavelet bases | Smoothness of wavelet bases | convergence of the cascade algorithm (Condition E) | convergence of the cascade algorithm (Condition E) | splines | splines | Bases vs. frames | Bases vs. frames | Signal and image processing | Signal and image processing | finite length signals | finite length signals | boundary filters and boundary wavelets | boundary filters and boundary wavelets | wavelet compression algorithms | wavelet compression algorithms | Lifting | Lifting | ladder structure for filter banks | ladder structure for filter banks | factorization of polyphase matrix into lifting steps | factorization of polyphase matrix into lifting steps | lifting form of refinement equationSec | lifting form of refinement equationSec | Wavelets and subdivision | Wavelets and subdivision | nonuniform grids | nonuniform grids | multiresolution for triangular meshes | multiresolution for triangular meshes | representation and compression of surfaces | representation and compression of surfaces | Numerical solution of PDEs | Numerical solution of PDEs | Galerkin approximation | Galerkin approximation | wavelet integrals (projection coefficients | moments and connection coefficients) | wavelet integrals (projection coefficients | moments and connection coefficients) | convergence | convergence | Subdivision wavelets for integral equations | Subdivision wavelets for integral equations | Compression and convergence estimates | Compression and convergence estimates | M-band wavelets | M-band wavelets | DFT filter banks and cosine modulated filter banks | DFT filter banks and cosine modulated filter banks | Multiwavelets | Multiwavelets

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 http://ocw.mit.edu/terms/index.htm

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Tensile failure surface of a carbon fibre composite

Description

This is from the region of the fracture surface which was in tension. The fibres show clean, brittle fracture surfaces (with no fibrillation or distortion and little distortion of the matrix) and have broken at varying lengths and hence some stick out while others have left holes in the matrix. This is indicative of fibre pull-out having occurred after an initial failure of the matrix, followed by failure of the fibres themselves. This is a toughening mechanism in fibre reinforced composites. It is also involved in composite crack stopping properties; each fibre has briefly slowed the progress of the crack by opening it up along the weak fibre-matrix interface and hence blunting the crack tip. The crack therefore advances relatively slowly, with much lateral meandering.

Subjects

alignment | carbon | carbon fibres | cfc | composite material | epoxy | fibre | fracture | neutral axis | polymer composite | pull-out | reinforcement | doitpoms | university of cambridge | micrograph | corematerials | ukoer | Engineering | H000

License

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

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TALAT Lecture 2203: Structural materials fabrication

Description

This lecture gives a brief introduction into the basic fabrication methods for structural aluminium alloy materials with respect to machining, forming, joining and surface treatments as a necessary background for the design process; it describes the subject of welding structural aluminium alloys in order to understand the materials requirements which the designer has to take into account when designing load carrying welded aluminium structures. General materials engineering background is assumed.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | design | product | structural design | preparation | extrusion | cutting | plasma gas cutting | shearing | sawing | machining | cold forming | bending | cold forging | bolting | riveting | adhesive bonding | explosion welded connections | sandwich element construction | surface treatment | joining | chemical properties | physical properties | welding | inert gas welding | mig welding | pulsed arc mig welding | plasma mig welding | tig welding | filler materials | weldability | joint design | backing methods | cleaning | shielding gas | pre-heating | weld cracks | solidification cracks | solution cracks | weld imperfections | economy | distortion | inspection | non-destructive testing | destructive testing | quality control aspects | corematerials | ukoer | Engineering | H000

License

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

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The Evolution of the Euopean Single market - Application to the EU including discussion of trade creation and trade distortion

Description

Lecture slides for a first year economics course on European economic issues as taught by Cillian Ryan at the University of Birmingham in 2009/10.

Subjects

economics | ukoer | trueproject | europe | european economics | Social studies | L000

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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Disclinations in a smectic LCP, revealed by decoration

Description

Detailed configurations of disclinations and their interactions have been elucidated by band texture decoration. The positive value of elastic anisotropy of a semi-flexible LCP, Cl-6, shows that bend distortion is favoured. The obvious variations of elastic anisotropy values measured from the different disclinations is probably related to the polydispersity of the polymer. The majority of disclination pairs showing random configurations indicate that that defect interactions are far from equilibrium in polymeric smectics.

Subjects

alignment | decoration | disclination | dislocation | liquid crystalline polymer (LCP) | polymer | smectic | spontaneous band texture | texture | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

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

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Disclinations in a smectic LCP, revealed by decoration

Description

Detailed configurations of disclinations and their interactions have been elucidated by band texture decoration. The positive value of elastic anisotropy of a semi-flexible LCP, Cl-6, shows that bend distortion is favoured. The obvious variations of elastic anisotropy values measured from the different disclinations is probably related to the polydispersity of the polymer. The majority of disclination pairs showing random configurations indicate that that defect interactions are far from equilibrium in polymeric smectics.

Subjects

alignment | decoration | disclination | dislocation | liquid crystalline polymer (LCP) | polymer | smectic | spontaneous band texture | texture | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

License

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

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Economics explains discrimination in the labour market

Description

Discrimination in the labour market exists in many forms: the ‘glass ceiling’ ageism, racism, etc. This unit will help you look at this problem with a new perspective: through economics. You will learn how economists have tried to understand what drives this distortion of the labour market and why women and the ethnic minorities seem to suffer the most.

Subjects

society | disadvantage | discrimination | economics | economic_theory | economists | labour_market | microeconomics | segmentation | Education | X000

License

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

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18.327 Wavelets, Filter Banks and Applications (MIT)

Description

Wavelets are localized basis functions, good for representing short-time events. The coefficients at each scale are filtered and subsampled to give coefficients at the next scale. This is Mallat's pyramid algorithm for multiresolution, connecting wavelets to filter banks. Wavelets and multiscale algorithms for compression and signal/image processing are developed. Subject is project-based for engineering and scientific applications.

Subjects

Discrete-time filters | convolution | Fourier transform | owpass and highpass filters | Sampling rate change operations | upsampling and downsampling | ractional sampling | interpolation | Filter Banks | time domain (Haar example) and frequency domain | conditions for alias cancellation and no distortion | perfect reconstruction | halfband filters and possible factorizations | Modulation and polyphase representations | Noble identities | block Toeplitz matrices and block z-transforms | polyphase examples | Matlab wavelet toolbox | Orthogonal filter banks | paraunitary matrices | orthogonality condition (Condition O) in the time domain | modulation domain and polyphase domain | Maxflat filters | Daubechies and Meyer formulas | Spectral factorization | Multiresolution Analysis (MRA) | requirements for MRA | nested spaces and complementary spaces; scaling functions and wavelets | Refinement equation | iterative and recursive solution techniques | infinite product formula | filter bank approach for computing scaling functions and wavelets | Orthogonal wavelet bases | connection to orthogonal filters | orthogonality in the frequency domain | Biorthogonal wavelet bases | Mallat pyramid algorithm | Accuracy of wavelet approximations (Condition A) | vanishing moments | polynomial cancellation in filter banks | Smoothness of wavelet bases | convergence of the cascade algorithm (Condition E) | splines | Bases vs. frames | Signal and image processing | finite length signals | boundary filters and boundary wavelets | wavelet compression algorithms | Lifting | ladder structure for filter banks | factorization of polyphase matrix into lifting steps | lifting form of refinement equationSec | Wavelets and subdivision | nonuniform grids | multiresolution for triangular meshes | representation and compression of surfaces | Numerical solution of PDEs | Galerkin approximation | wavelet integrals (projection coefficients | moments and connection coefficients) | convergence | Subdivision wavelets for integral equations | Compression and convergence estimates | M-band wavelets | DFT filter banks and cosine modulated filter banks | Multiwavelets

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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Economics explains discrimination in the labour market

Description

Discrimination in the labour market exists in many forms: the 'glass ceiling' ageism racism and so on. This free course will help you look at this problem from a new perspective: through economics. You will learn how economists have tried to understand what drives this distortion of the labour market and why women and those from minority ethnic groups seem to suffer the most.

Subjects

Economics | discrimination

License

Except for third party materials and otherwise stated in the acknowledgement section (see our terms and conditions http://www.open.ac.uk/conditions) this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence. - http://creativecommons.org/licenses/by-nc-sa/4.0 Except for third party materials and otherwise stated in the acknowledgement section (see our terms and conditions http://www.open.ac.uk/conditions) this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence. - http://creativecommons.org/licenses/by-nc-sa/4.0

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TALAT Lecture 2203: Structural materials fabrication

Description

This lecture gives a brief introduction into the basic fabrication methods for structural aluminium alloy materials with respect to machining, forming, joining and surface treatments as a necessary background for the design process; it describes the subject of welding structural aluminium alloys in order to understand the materials requirements which the designer has to take into account when designing load carrying welded aluminium structures. General materials engineering background is assumed.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | design | product | structural design | preparation | extrusion | cutting | plasma gas cutting | shearing | sawing | machining | cold forming | bending | cold forging | bolting | riveting | adhesive bonding | explosion welded connections | sandwich element construction | surface treatment | joining | chemical properties | physical properties | welding | inert gas welding | MIG welding | pulsed arc MIG welding | plasma MIG welding | TIG welding | filler materials | weldability | joint design | backing methods | cleaning | shielding gas | pre-heating | weld cracks | solidification cracks | solution cracks | weld imperfections | economy | distortion | inspection | non-destructive testing | destructive testing | quality control aspects | corematerials | ukoer

License

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

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18.327 Wavelets, Filter Banks and Applications (MIT)

Description

Wavelets are localized basis functions, good for representing short-time events. The coefficients at each scale are filtered and subsampled to give coefficients at the next scale. This is Mallat's pyramid algorithm for multiresolution, connecting wavelets to filter banks. Wavelets and multiscale algorithms for compression and signal/image processing are developed. Subject is project-based for engineering and scientific applications.

Subjects

Discrete-time filters | convolution | Fourier transform | owpass and highpass filters | Sampling rate change operations | upsampling and downsampling | ractional sampling | interpolation | Filter Banks | time domain (Haar example) and frequency domain | conditions for alias cancellation and no distortion | perfect reconstruction | halfband filters and possible factorizations | Modulation and polyphase representations | Noble identities | block Toeplitz matrices and block z-transforms | polyphase examples | Matlab wavelet toolbox | Orthogonal filter banks | paraunitary matrices | orthogonality condition (Condition O) in the time domain | modulation domain and polyphase domain | Maxflat filters | Daubechies and Meyer formulas | Spectral factorization | Multiresolution Analysis (MRA) | requirements for MRA | nested spaces and complementary spaces; scaling functions and wavelets | Refinement equation | iterative and recursive solution techniques | infinite product formula | filter bank approach for computing scaling functions and wavelets | Orthogonal wavelet bases | connection to orthogonal filters | orthogonality in the frequency domain | Biorthogonal wavelet bases | Mallat pyramid algorithm | Accuracy of wavelet approximations (Condition A) | vanishing moments | polynomial cancellation in filter banks | Smoothness of wavelet bases | convergence of the cascade algorithm (Condition E) | splines | Bases vs. frames | Signal and image processing | finite length signals | boundary filters and boundary wavelets | wavelet compression algorithms | Lifting | ladder structure for filter banks | factorization of polyphase matrix into lifting steps | lifting form of refinement equationSec | Wavelets and subdivision | nonuniform grids | multiresolution for triangular meshes | representation and compression of surfaces | Numerical solution of PDEs | Galerkin approximation | wavelet integrals (projection coefficients | moments and connection coefficients) | convergence | Subdivision wavelets for integral equations | Compression and convergence estimates | M-band wavelets | DFT filter banks and cosine modulated filter banks | Multiwavelets

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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Model of Cooper pairs: distortion of ion lattice

Description

quot;) will cause it to stretch creating a depression in which the ball sits. Another ball placed near enough to the first causes there to be a coupling between them that would otherwise not be there without the rubber sheet. From TLP: Superconductivity, http://www.doitpoms.ac.uk/tlplib/superconductivity/cooper.php

Subjects

superconductivity | cooper pairs | doitpoms | university of cambridge | video | corematerials | ukoer | Engineering | H000

License

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

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6.441 Information Theory (MIT)

Description

This is a graduate-level introduction to mathematics of information theory. We will cover both classical and modern topics, including information entropy, lossless data compression, binary hypothesis testing, channel coding, and lossy data compression.

Subjects

properties of information | entropy | divergence | information measures | mutual information | sufficient statistic | probability of error | entropy rate | lossless data compression | fixed-length compression | ergodic sources | universal compression | binary hypothesis testing | information projection | channel coding | achievability bounds | linear codes | gaussian channels | input constraints | lattice codes | energy-per-bit | source-channel separation | feedback | forney concatenation | lossy compression | distortion | multiple-access channel | random number generator | source coding theorem | noisy communication | channel coding theorem | source channel separation theorem | broadcast channels | Gaussian noise | time-varying channels

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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Disclinations in a smectic LCP, revealed by decoration

Description

Detailed configurations of disclinations and their interactions have been elucidated by band texture decoration. The positive value of elastic anisotropy of a semi-flexible LCP, Cl-6, shows that bend distortion is favoured. The obvious variations of elastic anisotropy values measured from the different disclinations is probably related to the polydispersity of the polymer. The majority of disclination pairs showing random configurations indicate that that defect interactions are far from equilibrium in polymeric smectics.

Subjects

alignment | decoration | disclination | dislocation | liquid crystalline polymer (lcp) | polymer | smectic | spontaneous band texture | texture | doitpoms | university of cambridge | micrograph | corematerials | ukoer | Engineering | H000

License

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

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Disclinations in a smectic LCP, revealed by decoration

Description

Detailed configurations of disclinations and their interactions have been elucidated by band texture decoration. The positive value of elastic anisotropy of a semi-flexible LCP, Cl-6, shows that bend distortion is favoured. The obvious variations of elastic anisotropy values measured from the different disclinations is probably related to the polydispersity of the polymer. The majority of disclination pairs showing random configurations indicate that that defect interactions are far from equilibrium in polymeric smectics.

Subjects

alignment | decoration | disclination | dislocation | liquid crystalline polymer (lcp) | polymer | smectic | spontaneous band texture | texture | doitpoms | university of cambridge | micrograph | corematerials | ukoer | Engineering | H000

License

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

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Distorted Moon

Description

Subjects

moon | distortion | internationalspacestation | iss | photos | from | natural | satellite | full

License

No known copyright restrictions

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Working with digital media files

Description

Digital media (e.g. video, audio, images) formats are changing fairly rapidly, which can lead to data loss or distortion when researchers try to re-use or access these materials. In this short interview, Stephen Gray provides pointers and examples for working with digital research media. Created by JISC Incremental project at University of Cambridge and University of Glasgow. Video, English, 03.11.

Subjects

data | digital | management | curation | research | information | live art | archive | media | video | audio | images | preservation | open source | file formats | Technologies | J000

License

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

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Optimisation of a three-dimensional (3D) cell culture model for use in a miniature satellite system

Description

Following the return of astronaut Scott Kelly after a year in space comparisons with his twin showed large pathological changes in many organs, it is still not clear why this occurs; this is a growing concern with sending astronauts to Mars and on longer space flights. Understanding the morphology of cells using cell-culture and the physiological and pathophysiological changes that a cell undergoes when subjected to stress, like when exposed to radiation or in reduced gravity, is beneficial to human health and can be applied to many conditions including osteoporosis, muscle atrophy and organ damage (Biolo et al., 2003; Honda et al., 2014). There are still many limitations with traditional two-dimensional monolayer culture, including distortion of shape due to growth area restraints. This

Subjects

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Economics explains discrimination in the labour market

Description

Discrimination in the labour market exists in many forms: the 'glass ceiling' ageism racism and so on. This free course will help you look at this problem from a new perspective: through economics. You will learn how economists have tried to understand what drives this distortion of the labour market and why women and those from minority ethnic groups seem to suffer the most.

Subjects

Economics | discrimination

License

Except for third party materials and otherwise stated in the acknowledgement section (see our terms and conditions http://www.open.ac.uk/conditions) this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence. - http://creativecommons.org/licenses/by-nc-sa/4.0 Except for third party materials and otherwise stated in the acknowledgement section (see our terms and conditions http://www.open.ac.uk/conditions) this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence. - http://creativecommons.org/licenses/by-nc-sa/4.0

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Model of Cooper pairs: distortion of ion lattice

Description

Cooper pairs. Putting one ball bearing (the "electron") resting on a rubber sheet (the "lattice") will cause it to stretch creating a depression in which the ball sits. Another ball placed near enough to the first causes there to be a coupling between them that would otherwise not be there without the rubber sheet. From TLP: Superconductivity, http://www.doitpoms.ac.uk/tlplib/superconductivity/cooper.php

Subjects

superconductivity | Cooper pairs | DoITPoMS | University of Cambridge | video | corematerials | ukoer

License

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

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http://core.materials.ac.uk/rss/doitpoms_videos.xml

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