Daily non-political popular news in brief.
High-frequency cryocooler is tiny, cold and efficient
02-15-2007 · EurekAlert!A new cryogenic refrigerator has been demonstrated at NIST that operates at twice the usual frequency, achieving a long-sought combination of small size, rapid cooling, low temperatures and high efficiency. The cryocoooler could be used to chill instruments for space and military applications, and is a significant step towards even smaller, higher-frequency versions for integrated circuits and microelectromechanical (MEM) systems.
Read more »
Keywords: high-frequency, cryocooler, tiny, cold, efficient, high, frequency
« Previous | Next »
Similar news on "High-frequency cryocooler is tiny, cold and efficient":
- Marine phytoplankton changes form to protect itself from different predators
06-15-2007 · EurekAlert!
A tiny single-celled organism that plays a key role in the carbon cycle of cold-water oceans may be a lot smarter than scientists had suspected.
Similar news · Read more »
- Engineers develop way of detecting problems with artificial hip joints
08-02-2007 · EurekAlert!
A more efficient way of detecting loosened artificial hip implants, which affect thousands of people every year, has been developed. Engineers at the University of Bath have developed a diagnostic test which measures the frequency of sound produced when the femur bone in the leg is vibrated.
Similar news · Read more »
- Optical Atomic Clock: A long look at the captured atoms
02-05-2008 · EurekAlert!
In the case of one of the candidates for an optical clock which is developed at Physikalisch-Technische Bundesanstalt, an optical grating clock with strontium atoms, the loading of cold atoms into an optical grating has been optimized to such an extent that approx. 106 strontium atoms are loaded into the grating within 150 milliseconds at a temperature of a few microkelvin. There, the atoms remain stored for over one second and are available for a precision measurement of the optical frequency.
Similar news · Read more »
- New fabrication technique yields nanoscale UV LEDs
05-25-2007 · EurekAlert!
Researchers at NIST, in collaboration with scientists from the University of Maryland and Howard University, have developed a technique to create tiny, highly efficient light-emitting diodes from nanowires.
Similar news · Read more »
- Tiny Tubes and Rods Show Promise as Catalysts, Sunscreen
09-10-2007 · Brookhaven National Laboratory
Brookhaven scientists have developed new ways to make or modify nanorods and nanotubes of titanium oxide, a material used in a variety of industrial and medical applications. The methods and new titanium oxide materials may lead to improved catalysts for hydrogen production, more efficient solar cells, and more protective sunscreens.
Similar news · Read more »
- A classic method for modeling skin cancer is featured in Cold Spring Harbor Protocols
09-04-2007 · EurekAlert!
This month's release of Cold Spring Harbor Protocols includes free access to a protocol for generating mice with squamous cell carcinoma (SCC), one of the most common types of skin cancer. It also includes free access to an efficient method for testing individuals for specific DNA variations called SNPs (single-nucleotide polymorphisms), which will be useful for identifying individuals with disease-related mutations.
Similar news · Read more »
- Single reader with CAD more efficient, yields fewer false positives, and possibly more sensitive
02-14-2008 · EurekAlert!
Single reading of screening mammograms with computer-aided detection is more efficient than double reading and yields a higher sensitivity than the first reader in a double reading program, according to a study conducted by researchers at Charlotte Radiology in Charlotte, N.C. In addition, the readings with CAD had a significantly lower recall rate than double reading.
Similar news · Read more »
- First 2-D Pictures of a 'frequency comb' transform it into a brush
02-07-2007 · EurekAlert!
Physicists at NIST have taken the first ever two-dimensional pictures of a "frequency comb," providing extra information that enhances the comb's usefulness in optical atomic clocks, secure high-bandwidth communications, real-time chemical analysis, remote sensing and the ultimate in precision control of atoms and molecules.
Similar news · Read more »
- El Niсo and African monsoon have strongly influenced intense hurricane frequency in the past
05-23-2007 · EurekAlert!
The frequency of intense hurricanes in the Atlantic Ocean appears to be closely connected to long-term trends in the El Niсo/Southern Oscillation and the West African monsoon, according to new research from the Woods Hole Oceanographic Institution. Geologists Jeff Donnelly and Jonathan Woodruff made that discovery while assembling the longest-ever record of hurricane strikes in the Atlantic basin.
Similar news · Read more »
- An accurate method for preoperative diagnosis of pancreatic solid pseudopapillary tumor
10-23-2007 · EurekAlert!
Solid pseudopapillary tumor of the pancreas is a very rare pancreatic tumor with a reported frequency of less than 1 percent of all pancreatic diseases. In most patients, the tumor follows an indolent clinical course and complete resection is often curative. Researchers confirmed that endoscopy ultrasound guided fine-needle aspiration cytology is an accurate method for preoperative diagnosis of SPTP.
Similar news · Read more »
