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Wireless Communications Using Light

Series
Department of Engineering Science Lectures
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In this lecture, Dominic O'Brien introduces the field, the challenges, and the promise for the future of this area of research.
The demand for wireless communications is growing exponentially, and the radio spectrum required to meet this demand is increasingly crowded, leading to predictions of a ‘spectrum crunch’. Using light for wireless transmission is an attractive alternative. Optical wireless can offer access to almost unlimited spectrum, albeit with many implementation challenges.
Creative Commons Licence
Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK (BY-NC-SA): England & Wales; https://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Episode Information

Series
Department of Engineering Science Lectures
People
Dominic O'Brien
Keywords
wireless communications
lubbock
Department: Department of Engineering Science
Date Added: 22/05/2017
Duration: 00:28:06

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Network Complexity and the Internet of Things

Series
Department of Engineering Science Lectures
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In this talk, Justin Coon explores the issue of complexity in the IoT from a fundamental perspective and provide some insight into what this means for practical deployments in the future.
The evolution of wireless communication technology over the past two decades has led to severe engineering challenges concerning interference and network densi cation. As we begin to embrace the Internet of Things (IoT) paradigm, these challenges are sure to grow. Indeed, it is predicted that connection densities will surpass one million per square kilometre in the near future, largely owing to the deployment of IoT networks and services. Yet, relatively little has been done to quantify the growing complexity of these networks, and the subsequent implications that this growth will have on network performance.
Creative Commons Licence
Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK (BY-NC-SA): England & Wales; https://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Episode Information

Series
Department of Engineering Science Lectures
People
Justin Coon
Keywords
wireless communication
internet
Department: Department of Engineering Science
Date Added: 22/05/2017
Duration: 00:38:00

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95 Theses: On the Principles and Practice of Poetry

Series
Poetry with Simon Armitage
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Professor of Poetry Simon Armitage gives his sixth public lecture. Held on 16th May 2017.

Episode Information

Series
Poetry with Simon Armitage
People
Simon Armitage
Keywords
poetry
Department: Faculty of English Language and Literature
Date Added: 19/05/2017
Duration: 01:03:56

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Supporting Our Cause

Series
MOVING, TEACHING, INSPIRING: The National Trust and University of Oxford in the 21st Century
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This lecture focuses on how branding and fundraising are fundamental to supporting the National Trust and Oxford University.
Creative Commons Licence
Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK (BY-NC-SA): England & Wales; https://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Episode Information

Series
MOVING, TEACHING, INSPIRING: The National Trust and University of Oxford in the 21st Century
People
Oliver Cox
Jackie Jordan
Susan Foster
Keywords
fundraising
support
Charity
heritage
Department: The Oxford Research Centre in the Humanities (TORCH)
Date Added: 19/05/2017
Duration: 01:23:15

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Free Speech: Ten Principles for a Connected World

Series
Foundation for Law, Justice and Society
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In this keynote lecture, leading political writer Timothy Garton Ash will present his ten guiding principles for a connected world, and offer a manifesto for global free speech in the digital age.
Drawing on a lifetime of writing about dictatorships and dissidents, Oxford Professor of European Studies Timothy Garton Ash will argue that we are currently experiencing an unprecedented era in human history for freedom of expression.

If we have internet access, any one of us can publish almost anything we like, potentially reaching an audience of millions. Never was there a time when the evils of unlimited speech flowed so easily across frontiers: violent intimidation, gross violations of privacy, tidal waves of abuse. A pastor burns a Koran in Florida and UN officials die in Afghanistan.

In this connected world that he calls cosmopolis, the way to combine freedom and diversity is to have more but also better free speech. Across all cultural divides, we must strive to agree on how we disagree.

Professor Garton Ash will draw on a unique, thirteen-language global conversation and online research project, freespeechdebate.com, alongside his latest book, Free Speech, to present his ten principles for a connected world.

He will illustrate his talk with vivid examples from his personal experience of China's Orwellian censorship apparatus, to the controversy around Charlie Hebdo, to a very English court case involving food writer Nigella Lawson, and propose a framework for civilized conflict in a world in which we are all becoming neighbours.

Episode Information

Series
Foundation for Law, Justice and Society
People
Timothy Garton Ash
Keywords
free speech
liberalism
digital
internet
connected world
freedom
Department: Centre for Socio-Legal Studies
Date Added: 19/05/2017
Duration: 00:48:55

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News in the digital age, and how The Economist fits in

Series
Reuters Institute for the Study of Journalism
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Tom Standage, deputy editor, the Economist gives a talk as part of the Business and Practice of Journalism Seminar Series, with an introduction by Richard Sambrook.

Episode Information

Series
Reuters Institute for the Study of Journalism
People
Tom Standage
Keywords
journalism
digital
economist
news
internet
Department: Department of Politics and International Relations (DPIR)
Date Added: 19/05/2017
Duration: 00:40:36

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Lecture 6: Bioinspired Colloidal Assembly: From Photonics to Encryption

Series
The Hinshelwood Lectures: Bioinspired Materials
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The sixth lecture in the Hinshelwood lecture series.

Episode Information

Series
The Hinshelwood Lectures: Bioinspired Materials
People
Joanna Aizenberg
Keywords
biology
chemistry
encryption
bio
Department: Physical and Theoretical Chemistry Laboratory
Date Added: 18/05/2017
Duration: 00:57:03

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Lecture 5: Everything SLIPS: A New Concept in Anti-biofouling Materials

Series
The Hinshelwood Lectures: Bioinspired Materials
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The fifth lecture in the Hinshelwood lecture series

Episode Information

Series
The Hinshelwood Lectures: Bioinspired Materials
People
Joanna Aizenberg
Keywords
biology
chemistry
materials
biofouling
Department: Physical and Theoretical Chemistry Laboratory
Date Added: 18/05/2017
Duration: 00:56:53

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Lecture 4: Hydrophobicity, Superhydrophobicity, Omniphobicity and Slippery Surfaces

Series
The Hinshelwood Lectures: Bioinspired Materials
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The fourth lecture in the Hinshelwood lecture series

Episode Information

Series
The Hinshelwood Lectures: Bioinspired Materials
People
Joanna Aizenberg
Keywords
hydro
chemistry
biology
Superhydrophobicity
Department: Physical and Theoretical Chemistry Laboratory
Date Added: 18/05/2017
Duration: 01:02:46

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Lecture 3: Actuated "spiny" Surfaces a la Echinoderms: En Route for Adaptive Materials

Series
The Hinshelwood Lectures: Bioinspired Materials
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The third lecture in the Hinshelwood lecture series.

Episode Information

Series
The Hinshelwood Lectures: Bioinspired Materials
People
Joanna Aizenberg
Keywords
surfaces
chemistry
biology
materials.
Department: Physical and Theoretical Chemistry Laboratory
Date Added: 18/05/2017
Duration: 00:56:16

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