Self-healing Surfaces Aug 19, 2009
Until now, these plans have failed due to the size of the capsules at 10 to 15 micrometers they were too large for the electroplated layer, which is around 20 micrometers thick. The capsules altered the mechanical properties of the layer. (Science Daily)
Jet-propelled Imaging For An Ultrafast Light Source Aug 14, 2009
Nozzles made of solid material like glass invariably clog up, limiting droplets to at best 20 micrometers across. What Spence and his colleagues wanted was a jet of particles less than a micrometer in size. (Science Daily)
Combustion Simulation: Digital Fireworks Aug 13, 2009
Over 100 terabytes of data were collected with a temporal resolution of 3 microseconds and a spatial resolution of 30 micrometers. The wealth of data is enormous. (Science Daily)
Artful Science: Peering into Ancient Pigments Aug 11, 2009
The results were obtained by analyzing microscopic samples, some less than 25 micrometers across. "We were surprised that it worked with;samples [that small]," Leona says. (Scientific American)
Sustained Quantum Information Processing Aug 10, 2009
The scientists demonstrated repeated rounds of a sequence of logic operations (four single-qubit operations and a two-qubit operation) on the ions and found that operational error rates did not increase as they progressed through the series, despite transporting qubits across macroscopic distances (960 micrometers, or almost a millimeter) while carrying out the operations ... 5 millimeters long and 200 micrometers wide) between the gold-covered alumina wafers. (Science Daily)
Air Quality Action Days Forecast for Five Pennsylvania Regions Aug 8, 2009
5 micrometers, about one-thirtieth the diameter of a human hair. Unlike ozone, particulate matter pollution can occur year-round. (PR Newswire)
Carbon Nanomaterials: Fine for Fly Food, Bad for Fly Coating Aug 8, 2009
By mixing the different carbon nanoparticles into fruit fly food small enough to be ingested by larval mouths as tiny as 50 micrometers wide the scientists delivered a dose of as much as 1,000 micrograms per gram of food without any ill effect on the young insects. Some of the ended up discoloring portions of the subsequent adult flies (see picture), proving it was ingested in quantity but without ill effect, and those adults were able to breed normally in turn. (Scientific American)
Membrane breaks through performance barrier Jul 31, 2009
The researchers demonstrated the RTP process on relatively thick (several micrometers) zeolite membranes. Tsapatsis and collaborators are now working towards making zeolite membranes 10 to 100 times thinner to allow molecules to pass through more quickly. (EurekAlert!)
Do You Believe In 'Tooth Worms?' Micro-images Of Strange, Worm-like Structures Uncovered Inside Dissected Molar Jul 29, 2009
A human hair by comparison is 40 micrometers wide ... 5 micrometers in diameter and the worm-like structures were smaller in the tubules in which they appeared ... The structures were as long as 9 micrometers, extending out of the tubule opening. (Science Daily)
What are clouds made of? Jul 25, 2009
The water droplets are usually about 10-20 micrometers across, or about one-twentieth of the diameter of the period at the end of a sentence, Petty says. A volume of air the size of a sugar cube may contain many thousands of droplets. (Why Files)
First Nanoscale Mass Spectrometer Created Jul 24, 2009
The bridge-like resonators, which are 2 micrometers long and 100 nanometers wide, vibrate at a high frequency and effectively serve as the "scale" of the mass spectrometer. "The frequency at which the resonator vibrates is directly proportional to its mass," explains research physicist Askshay Naik, the first author of a paper about the work that appears in the journal Nature Nanotechnology. (Science Daily)
* Kinmen in pollution firing line Jul 24, 2009
Many times a year, PM10 [fine particles in the air smaller than 10 micrometers in size] concentrations reach an alarming 100 or even 150 micrograms per cubic meter, said RCEC assistant research fellow Hsu Shih-chieh. citing statistics collected by the Environmental Protection Administration (EPA). (Taipei Times, Taiwan -- World Business)
Cell Phones Turned Into Fluorescent Microscopes Jul 23, 2009
In comparison, a human red blood cell is about 7 micrometers in diameter. "LEDs are dramatically more powerful now than they were just a few years ago, and they are only getting better and cheaper," said Fletcher. (Science Daily)
Century-old Eggs Revived To Study Evolution Jul 19, 2009
Approximate size is 300 micrometers. (Credit: Photomicrograph by P. Spaak). (Science Daily)
Innovative Technology Shatters The Barriers Of Modern Light Microscopy Jul 6, 2009
The result of this multi-spectral opto-acoustic tomography , or MSOT, is an image with a striking spatial resolution better than 40 micrometers (four hundredths of a millimeter). And best of all, the sedated fish wakes up and recovers without harm following the procedure. (Science Daily)
Stirred, Not Shaken: Bio-inspired Cilia Mix Medical Reagents At Small Scales Jul 3, 2009
The resulting prototype is a flexible rubber structure with fingers 400 micrometers long (about 1/100 of an inch) that can move liquids or biological components such as cells at the microscopic scale. The team varied the length and spacing of the fingers to get different vibration frequencies. (Science Daily)
How Martian clouds create snowfall Jul 3, 2009
The snow wasn't enough to build a snowmartian with, however, amounting to only a couple micrometers (there are 1,000 micrometers in a millimeter) a day if it was melted on the surface, Whiteway said. Click for related content. (MSNBC -- Technology)
Unexpectedly long-range effects in advanced magnetic devices Jul 2, 2009
To find out, the NIST/ISSP team started with a thin ferromagnetic film covering a silicon wafer and then added on top a grid of antiferromagnetic strips about 10 nanometers thick and 10 micrometers wide, separated by gaps of about 100 micrometers ... "This pinning effect extends for maybe tens of nanometers down into the ferromagnet right underneath," explains Shull, "so you might expect that there could be some residual effect maybe tens of nanometers away from it to the sides. But you wouldn't... (EurekAlert!)
Best Possible Cut From Gemstones With New Machine Jun 27, 2009
The machine cuts the facets to ten micrometers exactly the stones are therefore perfectly geometric. A further advantage is that the machine can produce identical stones ideal for necklaces. (Science Daily)
Quantum Mechanical Effects In Ordinary Objects Jun 23, 2009
In their experiment, the Caltech scientists used microfabrication techniques to create a very tiny nanoelectromechanical system (NEMS) resonator, a silicon-nitride beam just 2 micrometers long, 0. 2 micrometers wide, and weighing 40 billionths of a milligram that can resonate, or flex back and forth, at a high frequency when a voltage is applied. (Science Daily)
Lasers Are Making Solar Cells Competitive Jun 5, 2009
The tiny holes in the wafer - their diameter is only 50 micrometers open up undreamt-of possibilities for the solar cell developers ... In order to produce electric connections between the semiconductor and the metal, grooves only a few micrometers wide must be created. (Science Daily)
Quantum Entanglement In A Mechanical System Jun 4, 2009
Each pair behaves like two objects connected by a spring 4 micrometers (millionths of a meter) long, with the beryllium and magnesium moving back and forth in opposite directions, first toward each other, then away, then back again. The two pairs perform this motion in unison, even though they are 240 micrometers apart and are located in different zones of an ion trap ... The two pairs perform this motion in unison, even though they are 240 micrometers apart and are located in different zones of... (Science Daily)
Slicing Chromosomes Leads To New Insights Into Cell Division Jun 3, 2009
The chromosomes he altered were only micrometers long, and the slices across the chromosomes were only nanometers thick. A nanometer is one-billionth of a meter, about a million times thinner than a human hair. (Science Daily)
The Coming Of Biofuels: Study Shows Reducing Gasoline Emissions Will Benefit Human Health Jun 2, 2009
5 micrometers in diameter or smaller) produced from emissions of sulfate and nitrite gases, volatile organic compounds and ammonia, plus ozone, toxic air pollutants, emissions to surface and ground water, and emissions to soil. We found that for the vehicle operation phase of our LCIA, the annual health damages avoided in the U.S. with 10-percent less gasoline-run motor vehicle emissions ranges from about 5,000 to 20,000 DALY, with most of the damage resulting from primary fine particle... (Science Daily)
NRL part of multi-national team that launches Herschel Space Observatory May 15, 2009
Photodetector Array Camera and Spectrometer (PACS), three band camera and a low- to medium-spectral resolution integral field (5 X 5 pixel) spectrometer, covering the 55 210 micrometers spectral range ... Spectral and Photometric Imaging Receiver (SPIRE), a three band camera with bands centered at 250, 350, and 500 microns, and a low- to medium-resolution imaging Fourier transform spectrometer covering the 200 600 micrometers spectral range, using five bolometer arrays ... Heterodyne... (EurekAlert! -- Business News)
What's in a cough? 20,000 viruses May 13, 2009
Using previous research on influenza viral loads in nasal secretions, and assuming that each coughed airborne droplet measures between 1 to 5 micrometers in diameter, that adds up to many, many viruses in a single cough. A micrometer, or micron, is one millionth of a meter, or one thousandth of a millimeter. (MSNBC -- Health)
NIST issues first reference material for tissue engineering May 9, 2009
The three new NIST reference materials are disks approximately 20 millimeters across and 5 millimeters high formed of crisscrossed layers polyester struts approximately 200 micrometers in diameter. Varying the spacing of the struts in each layer resulted in three different average porosities for the disks: 47 percent (average strut spacing of 200 micrometers), 60 percent (300 micrometers), and 69 percent (450 micrometers). (EurekAlert! -- Business News)
Guzik Releases New DTR 3000 Discrete Track Recording Test System May 8, 2009
The advanced mechanical system of the spinstand can automatically center the media to eliminate track eccentricity from up to 100 micrometers down to below 800 nanometers. The piezo actuator further reduces the repeatable run-out to below 5 to 7 nanometers. (PR Newswire)
Underwater Robot With A Sense Of Touch May 6, 2009
The single printed strip is just a few ten micrometers wide, i.e. about half the width of a human hair. As a result, the strain gauges can be applied close to each other and the robot can identify precisely where it is touching an obstacle. (Science Daily)
Quantum Computers: Powerful Method Of Suppressing Errors Developed Apr 28, 2009
This crystal consists of about 300 ions that are spaced about 10 micrometers apart and are fluorescing (scattering laser light). An array of ions such as this might be used as a memory device in a quantum computer. (Science Daily)
Scientist unravels moon dust mystery Apr 20, 2009
Lunar dust particles are minuscule, with an average size of 70 micrometers, the thickness of a human hair. The particles get positively charged by photoelectric effects caused by powerful solar ultraviolet radiation and X-rays - generating adhesive forces that compel the specks of dust to cling to surfaces of scientific instruments and space suits. (India Times, India -- Health/Science)
Discovered after 40 years: Moon dust hazard influenced by Sun's elevation Apr 18, 2009
Lunar dust particles are minuscule, with an average size of 70 micrometers, the thickness of a human hair. The particles get positively charged by photoelectric effects caused by powerful solar ultraviolet radiation and X-rays the thin lunar atmosphere does not attenuate solar radiation generating strong electrostatic adhesive forces which compel the specks of dust to cling to surfaces of scientific instruments and space suits. (EurekAlert!)
Hair Structures Of Blind Cavefish Inspire New Generation Of Sensors Mar 27, 2009
"After covering the hair cell with synthetic cupula, our bio-inspired microsensor had the ability to detect flow better than the blind fish. The fish can detect flow slower than 100 micrometers per second, but our system demonstrated flow detection of several micrometers per second," said Tsukruk, who also holds an appointment in Georgia Tech's School of Polymer, Textile and Fiber Engineering. "Adding the cupula allowed us to detect a much smaller amount of flow and expand the dynamic range... (Science Daily)
Plant permit still up in air Mar 26, 2009
2 tons per year of particulate matter of 10 micrometers or less. SIE officials declined to comment and said the parties had agreed to defer to Hayes. (Pocatello Idaho State Journal, ID)
Project violating regulations Mar 24, 2009
Some particles are small enough to actually enter into the blood stream as stated by the epa "Small particles less than 10 micrometers in diameter pose the greatest problems, because they can get deep into your lungs, and some may even get into your bloodstream."Which commonly causes problems to the heart, smoke destroys cells, that is permanent damage. Secondly, with the Imperial Valley having one of the highest rates of asthma in part due to agriculture burning. (El Centro Imperial Valley Press, CA)
Researchers find 4,000-year-old coral species Mar 24, 2009
The ages imply that the corals' skeletons grow much more slowly than previously thought, only a few micrometers a year (one micrometer is about the diameter of a human blood cell). Of course, the tiny coral polyps that live inside the skeletons are only a few years old, meaning they are continually replaced for centuries to millennia while the supporting skeleton builds up around them. (MSNBC -- Technology)
Tribes challenge permit Mar 24, 2009
"I think by tomorrow we'll know whether or not we'll find a middle ground.The Idaho Department of Environmental Quality approved an air permit to construct the facility in February. The tribes and the conservation groups filed to contest the issuance of the permit on the final day of a 35-day appeal period. All of the parties involved agreed to stay the process until April 17 to allow time for face-to-face meetings in hopes of arriving at a resolution. If the negotiations are successful, the... (Pocatello Idaho State Journal, ID)
Dirty air blowing in from Mon Valley Mar 19, 2009
5 micrometers in size or smaller -- so small that several hundred could fit on the period at the end of this sentence. The particles can be emitted directly from power plants, industries or vehicles, or form in the atmosphere from chemical reactions involving sulfur dioxides and nitrogen oxides emitted from those same sources. (Pittsburgh Post-Gazette, PA)
New aerosol observing technique turns gray skies to blue Mar 13, 2009
Public release date: 12-Mar-2009. Contact: Sarah DeWitt. (EurekAlert!)
Ozone In Smog Linked To Risk Of Death Mar 12, 2009
5 micrometers in diameter and typically found in smoke and haze when they became available in 1999 and 2000. Because fine particle levels had already been linked to increased risk of premature death in previous studies, the researchers included them in the analysis to distinguish the effects of the two pollutants. (Science Daily)
Film Independent's Spirit Awards Commits to Cleaner Air and Smaller Carbon Footprint By Choosing Low Emissions, Eco OptimizedTM Luxury Sedan Serv Feb 26, 2009
D., Chief of the Air Pollution Epidemiology Section, California Office of Environmental Health Hazard Assessment (OEHHA) said, "Our studies show that ambient particles that are less than 2.5 micrometers in diameter are unhealthy to breathe and have been associated with premature mortality and other serious health effects. Our recent analysis indicated that there are 14,000 to 24,000 deaths a year in the State of California from exposure to fine particles, about half of which come from mobile... (Yahoo News -- Press Releases)
Huge Pressures Melt Diamonds On Planet Neptune Feb 20, 2009
(May 16, 2005) Researchers at the Carnegie Institution's Geophysical Laboratory have learned to produce 10-carat, half-inch thick single-crystal diamonds at rapid growth rates (100 micrometers per hour) using a. (Oct. (Science Daily)
Continue reading Feb 19, 2009
This exhaust will emit nitrogen oxides, sulfur oxides, volatile carbons, as well as particulate matter of 10 micrometers or less into the air. These will have to be assessed and mitigated under the requirements of the air pollution control district, Orth said. (Selma Enterprise, CA)
Nanowires generate energy from muscle movement Feb 19, 2009
Each piezoelectric nanowire measured from 100 to 800 nanometers in diameter and 100 to 500 micrometers long.. To generate sufficient voltage and current to run electronics devices, the tiny nanowires would have to be combined to generate enough electricity to power a device like a Blackberry. (EETimes)
Cancer Diagnosis: Now In 3-D Feb 17, 2009
35 micrometers -- about three times better than that of the 2-D images currently used for cancer diagnoses. (Credit: Still image from video courtesy of Michael Meyer, VisionGate). (Science Daily)
Artificial Cells, Simple Model For Complex Structure Feb 17, 2009
The scale bar is 10 micrometers. (Credit: Christine Keating, Penn State). (Science Daily)
Satellites Collide For First Time Ever Feb 14, 2009
As for pieces the size of micrometers, the count will likely be in the thousands, he added. This was the first high-speed impact between two intact spacecraft, NASA officials said. (TheSanDiegoChannel.com, CA)
Fujitsu Laboratories Develops CMOS-Based RF Transceiver Chip for 77GHz Automotive Radar Feb 12, 2009
The result is a signal-distribution circuit measuring 80 micrometers square, requiring less than 1% the surface area of previous circuits. 2. (JCN Network, Japan)
Satellites Crash in Unprecedented Space Smash-Up Feb 12, 2009
As for pieces the size of micrometers, the count will likely be in the thousands, he added. There have been four other cases in which space objects have collided accidentally in orbit, NASA said. (Fox News)
Future For Electronics Opened Up With Domain Walls That Conduct Electricity Feb 7, 2009
The bismuth ferrite films contained ferroelectric domains between 5 and 10 micrometers (millionths of a meter) in dimension, and, says Seidel, we can map and even change the domain structure by using different scanning-probe mechanisms. Scanning probe tips can be used to control the number and arrangement of conducting domain walls in bismuth ferrite (gold) between electrodes (green), thus creating useful devices on the nanoscale. (Science Daily)
Flexible Electronics: Large-scale Graphene Films Created Based On Inspiration From Water Lilies Feb 7, 2009
Like graphene, graphite oxide is essentially a sheet that is only one atom thick, but can be as wide as tens of micrometers. Jiaxing Huang, assistant professor of materials science and engineering at Northwestern University, and his research group at the McCormick School of Engineering and Applied Science set out to investigate how these graphite-oxide sheets assemble. (Science Daily)
