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Latest Continuum mechanics Stories

2012-03-21 14:59:09

Model gives clues on how to optimize homogeneous feeding of cells in suspension from a liquid nutriments supply in a bioreactor Physicists who have studied the mixing between two incompatible fluids have found that it is possible to control the undercurrents of one circulating fluid to optimise its exposure to the other. This work, which is about to be published in EPJ E´, was performed by Jorge Peixinho from CNRS at Le Havre University, France, and his colleagues from the Benjamin...

2012-02-07 10:15:00

Change leadership expert, Brett Clay, who attended the National Speakers Association (NSA) Conference during the Super Bowl, says people can achieve their goals and feel like Super Bowl champions if they get into the actuation zone--the mindset of putting change into motion. Only by making changes can people improve their success and attain their goals. Clay discusses how people, such as the NSA Conference attendees, can put change into motion. http://changeleadershipgroup.com Seattle, WA...

2011-12-23 10:55:11

Microscopic spheres form strings in surprising alignments when suspended in a viscous fluid and sheared between two plates – a finding that will affect the way scientists think about the properties of such wide-ranging substances as shampoo and futuristic computer chips. A team of scientists at Cornell University and the University of Chicago have imaged this behavior and have explained the forces causing it for the first time. Its findings appear in the Dec. 19-23 early edition of...

2011-12-19 13:16:59

The new measurements, by UCLA physics professor Giovanni Zocchi and former UCLA physics graduate student Yong Wang, are approximately 100 times higher in resolution than previous mechanical measurements, a nanotechnology feat which reveals an isolated protein molecule, surprisingly, is neither a solid nor a liquid. "Proteins are the molecular machines of life, the molecules we are made of," Zocchi said. "We have found that sometimes they behave as a solid and sometimes as a liquid. "Solids...

2011-09-01 17:02:48

In things thick and thin: Cornell physicists explain how fluids — such as paint or paste - behave by observing how micron-sized suspended particles dance in real time. Using high-speed microscopy, the scientists unveil how these particles are responding to fluid flows from shear — a specific way of stirring. (Science, Sept. 2). Observations by Xiang Cheng, Cornell post-doctoral researcher in physics and Itai Cohen, Cornell associate professor of physics, are the first to link...

2011-08-29 20:36:07

Rice University researchers surprised to see twin-induced brittle-like fractures in gold nanowires Thin gold wires often used in high-end electronic applications are wonderfully flexible as well as conductive. But those qualities don't necessarily apply to the same wires at the nanoscale. A new study from Rice University finds gold wires less than 20 nanometers wide can become "brittle-like" under stress. It appears in the journal Advanced Functional Materials. The paper by Rice...

2010-12-03 15:58:28

Hit it hard and it will fracture like a solid"¦ but tilt it slowly and it will flow like a fluid. This is the intriguing property of a type of "Ëœcomplex fluid' which has revealed "Ëœnew physics' in research by scientists at The University of Nottingham. The new findings will be highly useful to the manufacturing industry because the processing and dispensing of everyday products like toothpaste, cosmetics, pharmaceuticals and foodstuffs depends on an understanding...

2010-11-26 11:34:51

(Ivanhoe Newswire) -- Using a healthier hyperthermia, Virginia Tech engineering researchers and a colleague from India unveiled a new method to target and destroy cancerous cells without using chemotherapy. The cancer treatment uses hyperthermia to elevate the temperature of tumor cells, while keeping the surrounding healthy tissue at a lower degree of body heat. The investigators used both in vitro and in vivo experiments to confirm their findings. Ishwar Puri, professor and head of the...

2010-11-23 12:30:36

Using hyperthermia, Virginia Tech engineering researchers and a colleague from India unveiled a new method to target and destroy cancerous cells. The research was presented at the 63rd annual meeting of the American Physical Society Nov. 23 in Long Beach, Calif. The cancer treatment uses hyperthermia to elevate the temperature of tumor cells, while keeping the surrounding healthy tissue at a lower degree of body heat. The investigators used both in vitro and in vivo experiments to confirm...

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2010-09-01 21:23:18

Researchers at the National Institute of Standards and Technology (NIST) have demonstrated a microminiaturized device that can make complex viscosity measurements"”critical data for a wide variety of fields dealing with things that have to flow"”on sample sizes as small as a few nanoliters. Currently a table-top prototype, the NIST rheometer could be a particularly valuable tool for biotechnologists studying minute quantities of complex materials that must function in confined...


Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.