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Videos tagged with roman (26)

Infochemicals in the Ocean

Civil and Environmental Engineering

Added over 5 years ago | 00:00:45 | 14229 views

Marine microbes — though invisible to the naked eye — perform functions that are vital for the health of the ocean. With no vision or hearing, they navigate their environment by following chemical signals. One of these chemicals, DMSP, e...

Energy-Efficient Salps

Civil and Environmental Engineering

Added over 5 years ago | 00:01:17 | 11045 views

Energy-efficient salps swim and forage. To find out more, read a news release at http://cee.mit.edu/news/releases/2010/salp . Video courtesy of Roman Stocker of the MIT Department of Civil and Environmental Engineering and Kelly Rakow Su...

1.961 - Lecture 1 – The Origin of D...

1.961 Lecture Videos

Added 8 years ago | 01:24:04 | 34851 views

1.961 Life at low Reynolds numbersIntroduction to the class Brownian motion

1.961 - Lecture 2 – The physi...

1.961 Lecture Videos

Added 8 years ago | 01:25:40 | 23584 views

1.961 Life at low Reynolds numbersRandom walkers: a toy model for diffusion The diffusion coefficient and Einstein’s formula

1.961 - Lecture 3 – Diffusion...

1.961 Lecture Videos

Added 8 years ago | 01:25:42 | 26997 views

1.961 Life at low Reynolds numbersDiffusion-limited uptake: nutrient flux to a sphere When does nutrient uptake occur only by diffusion: The Peclet number Diffusion vs. locomotion: how do you escape from your boundary layer? Diffusion ...

1.961 - Lecture 4 – A smooth ...

1.961 Lecture Videos

Added 8 years ago | 01:27:25 | 29827 views

1.961 Life at low Reynolds numbersSolving the diffusion equation A fundamental property of diffusion: rapid smearing of fine-scale heterogeneities

1.961 - Lecture 5 – Examples ...

1.961 Lecture Videos

Added 8 years ago | 01:26:23 | 18599 views

1.961 Life at low Reynolds numbersThe capillary assay: testing what microorganisms like Diffusion in a pipe Insect tracheae: limits to respiration Diffusion of momentum: an analogy The porosity of eggs and the gas exchange in leaves (ha...

1.961 - Lecture 6 – Receptors

1.961 Lecture Videos

Added 8 years ago | 01:25:44 | 17182 views

1.961 Life at low Reynolds numbers Receptors on cell surfaces: how many do you need? Other forms of diffusion Diffusion with drift

1.961 - Lecture 7 – Taylor di...

1.961 Lecture Videos

Added 8 years ago | 01:28:59 | 25110 views

1.961 Life at low Reynolds numbersPoiseuille flow The advection-diffusion equation Stretching the mixing zone: enhancing diffusion via shear

1.961 - Lecture 8 – What̵...

1.961 Lecture Videos

Added 8 years ago | 01:26:40 | 26355 views

1.961 Life at low Reynolds numbersBrownian rotational diffusion A bacterial random walk: E. coli’s run-and-tumble swimming Other bacterial swimming modes Brownian constraints on swimming The distribution of tumbling angles

1.961 - Lecture 9 – Poisson p...

1.961 Lecture Videos

Added 8 years ago | 01:26:32 | 16374 views

1.961 Life at low Reynolds numbersTumbling intervals: a Poisson processDiffusion of a bacterial populationMotility mutants

1.961 - Lecture 10 – Chemotaxis

1.961 Lecture Videos

Added 8 years ago | 01:28:56 | 16191 views

1.961 Life at low Reynolds numbersMany taxis: chemo-, photo-, pH-, magneto-, rheo-, geo-, aero-, thermo-, gyro-taxis. A computer model of chemotaxis: a sensing random walker with memory Deriving an advection-diffusion equation for bact...

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