Phys.org news tagged with:partial differential equations
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en-usPhys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.Mathematicians formulate equations, bend light and figure out how to hide thingsThe idea of cloaking and rendering something invisible hit the small screen in 1966 when a Romulan Bird of Prey made an unseen, surprise attack on the Starship Enterprise on Star Trek. Not only did it make for a good storyline, it likely inspired budding scientists, offering a window of technology's potential.
http://phys.org/news/2015-06-mathematicians-equations-figure.html
Mathematics Mon, 22 Jun 2015 06:48:39 EDTnews354174504Ants' movements hide mathematical patternsWhen ants go exploring in search of food they end up choosing collective routes that fit statistical distributions of probability. This has been demonstrated by a team of mathematicians after analysing the trails of a species of Argentine ant. Studies like this could be applied to coordinate the movement of micro-robots in cleaning contaminated areas for example.
http://phys.org/news/2015-05-ants-movements-mathematical-patterns.html
Mathematics Tue, 12 May 2015 10:32:27 EDTnews350645539Engineers develop new methods to speed up simulations in computational grand challengeEngineers at the University of California, San Diego, have developed a new family of methods to significantly increase the speed of time-resolved numerical simulations in computational grand challenge problems. Such problems often arise from the high-resolution approximation of the partial differential equations governing complex flows of fluids or plasmas. The breakthrough could be applied to simulations that include millions or billions of variables, including turbulence simulations.
http://phys.org/news/2015-03-methods-simulations-grand.html
General Physics Thu, 26 Mar 2015 14:50:02 EDTnews346599456American mathematicians Nash, Nirenberg win Abel math prizeAmerican mathematicians John F. Nash Jr. and Louis Nirenberg have won this year's Abel Prize in mathematics.
http://phys.org/news/2015-03-american-mathematicians-nash-nirenberg-abel.html
Mathematics Wed, 25 Mar 2015 08:39:14 EDTnews346491547Optimized application of high intensity focused ultrasoundThe field of nonlinear acoustics is currently receiving a lot of attention, thanks to applications focused on the improvement of ultrasonic cleaning, ultrasonic welding, sonochemistry, or thermotherapy. Lithotripsy – the demolition of kidney stones based on the use of high intensity focused ultrasound – represents a further medical field of application.
http://phys.org/news/2015-02-optimized-application-high-intensity-focused.html
Mathematics Tue, 10 Feb 2015 09:30:06 EDTnews342782154Heat distributions help researchers to understand curved spaceThe heat equation is one of the most important partial differential equations. The behavior of the solution to the equation reflects the geometry of the underlying space very well. Therefore, this equation has been investigated very extensively in both analysis and geometry. The solution evolves over time so that the Dirichlet's energy functional decreases most efficiently. Recently, F. Otto introduced another characterization: the solution evolves so that the Boltzmann entropy increases most efficiently from the viewpoint of optimal transportation. Both of these characterizations enable us to study the heat equation on spaces admitting singularities, where usual differential calculus does not work. However, their identification in such spaces is unknown.
http://phys.org/news/2014-08-space.html
Mathematics Tue, 26 Aug 2014 07:50:06 EDTnews328255083The brain could be key to a better computerYour brain is incredibly well-suited to handling whatever comes along, plus it's tough and operates on little energy. Those attributes—dealing with real-world situations, resiliency and energy efficiency—are precisely what might be possible with neuro-inspired computing.
http://phys.org/news/2014-05-brain-key.html
Computer Sciences Thu, 15 May 2014 08:40:01 EDTnews319361126Light knots: Physicists use Maxwell's equations to describe field lines that encode torus knots and links(Phys.org) —A team of physicists, two from the U.S., and one each from Poland and Spain has used Maxwell's equations to describe field lines that encode all torus knots and links. As they describe in their paper published in the journal Physical Review Letters, the result of using the equations could lead to a method of creating light in the real world that can be tied into knots.
http://phys.org/news/2013-10-physicists-maxwell-equations-field-lines.html
General Physics Fri, 18 Oct 2013 08:15:37 EDTnews301302916The secret lives of bubbles: Mathematicians describe evolution, dissolution of clusters of bubbles (w/ video)Bubble baths and soapy dishwater, the refreshing head on a beer and the luscious froth on a cappuccino. All are foams, beautiful yet ephemeral as the bubbles pop one by one.
http://phys.org/news/2013-05-secret-mathematicians-evolution-dissolution-clusters.html
Mathematics Thu, 09 May 2013 14:00:08 EDTnews287313104Biophysicists model the behavior of a protein critical to cell motion(Phys.org) -- Physicists at Lehigh have created a mathematical model that could benefit researchers who study cell motion, including cancerous cell motion, tissue healing processes and human embryonic development.
http://phys.org/news/2012-07-biophysicists-behavior-protein-critical-cell.html
General Physics Mon, 16 Jul 2012 04:55:14 EDTnews261633305Mathematics: First-ever image of a flat torus in 3DJust as a terrestrial globe cannot be flattened without distorting the distances, it seemed impossible to visualize abstract mathematical objects called flat tori in ordinary three-dimensional space. However, a French team of mathematicians and computer scientists has succeeded in constructing and visually representing an image of a flat torus in three-dimensional space. This is a smooth fractal, halfway between fractals and ordinary surfaces. The results are published in PNAS.
http://phys.org/news/2012-04-mathematics-first-ever-image-flat-torus.html
Mathematics Thu, 26 Apr 2012 06:35:24 EDTnews254640881