Saylor Foundation and NASA #39;s SSE 101: Subunit 1.1 Common Definitions of Systems Engineering
Saylor.org and NASA have partnered to bring you this video as part of our Space Systems Engineering Online Course. Take the full SSE101: Survey of Systems En...
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Saylor Foundation and NASA's SSE 101: Subunit 1.1 Common Definitions of Systems Engineering - Video
NASA and JAXA ISS Astronauts Congratulate #39;Gravity #39; on Academy Awards #Oscars2014
Aboard the International Space Station, NASA Astronauts Mike Hopkins and Rick Mastracchio and JAXA Astronaut Koichi Wakata congratulate the filmmakers and ac...
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NASA and JAXA ISS Astronauts Congratulate 'Gravity' on Academy Awards #Oscars2014 - Video
NASA Documentary - Pioneer 10 Jupiter Odyssey
Pioneer 10 is an American space probe, that completed the first mission to the planet Jupiter. Thereafter, Pioneer 10 became the first spacecraft to achieve ...
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NASA #39;s Stardust-NExT flyby of Comet Tempel I
Like us on Facebook. Visit http://www.facebook.com/SpaceReloaded On February 14, 2011 NASA #39;s Stardust-NExT mission did a flyby of 6 km (3.7-mile) wide comet ...
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NASA Dulce Battle and Beyond, Pt 8
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Hubble NIBIRU% SPITZER 200 Geminid Meteors SPACE Per Hour NASA
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Hubble NIBIRU% SPITZER 200 Geminid Meteors SPACE Per Hour NASA - Video
WASHINGTON NASA's 2015 budget would remain essentially flat at $17.5 billion under a White House spending proposal unveiled Tuesday that would hold the line on the agency's biggest space programs while laying the groundwork for major new astrophysics and planetary science missions.
However, a large airborne infrared telescope known as the Stratospheric Observatory for Infrared Astronomy (SOFIA) would be grounded unless NASA's partner on the project, the German Aerospace Center, steps up its contribution, a senior agency official said ahead of the budget rollout.
The 2015 NASA budget request seeks about 1 percent less for NASA than what Congress approved for 2014 in an omnibus spending bill signed in January, but $600 million more than what the agency received in 2013, when automatic budget cuts known as sequestration were in full effect. [Video: How NASA Will Spend Your Money in 2015]
As part of the roughly $5 billion Science budget the administration proposed for 2015 about $180 million less than the 2014 appropriation NASA's Astrophysics division would get $607 million, $14 million of which would be for preliminary work on the Wide Field Infrared Survey Telescope: a dark-energy and exoplanet observatory that would utilize one of the two 2.4-meter telescopes donated to NASA by the National Reconnaissance Office in 2012.
Planetary Science, meanwhile, would get nearly $1.3 billion, about $65 million less than Congress approved for 2014. The money would allow NASA to continue work on a new sample-caching Mars rover, based on the Curiosity design, that would launch in 2020. It would also provide $15 million for early work on a robotic mission to Jupiters moon Europa that would launch sometime next decade. In 2014, Congress approved about $80 million for Europa mission studies.
The White House's 2015 budget request was released about a month late and sets the stage for a new round of old disputes between the White House and Capitol Hill.
NASA is once again seeking more money than lawmakers have been willing to provide for an ongoing competition to build commercially designed spacecraft to take astronauts to the international space station by late 2017. NASA wants $848 million for 2015, nearly $150 million more than Congress provided in the 2014 omnibus bill, which is the high-water mark for the program.
At the same time, NASA is seeking about $2.8 billion for the Space Launch System (SLS) heavy-lift rocket and companion Orion deep-space crew capsule about $300 million less than Congress appropriated in the 2014 omnibus. SLS and Orion would debut in 2017 on an uncrewed test flight to lunar space, with a crewed mission to follow in 2021.
The 2015 budget provides no official estimate of the total cost for NASA's proposed asteroid redirect mission, which the agency announced in its 2014 budget request. In this mission, a new robotic spacecraft launching later this decade would redirect a small asteroid to lunar space, where astronauts could explore it by 2025 using SLS and Orion.
The White House proposed spending $133 million in 2015 on capabilities needed by, but not specific to, the asteroid mission: next-generation solar electric space propulsion, and improved asteroid detection. NASA said last year that the redirect mission, which has received a chilly reception on Capitol Hill, might cost roughly $2 billion.
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NASA astronaut Chris Cassidy (left), along with Russian cosmonauts Pavel Vinogradov (center) and Alexander Misurkin (right), on the International Space Station, Sept. 10, 2013. NASA
NASA Administrator Charles Bolden said Tuesday that cooperation with Russia on the International Space Station has not been disrupted by rising diplomatic tensions over the crisis in Ukraine.
"Right now, everything is normal in our relationship with the Russians," Bolden said.
"I think people lose track of the fact that we have occupied the International Space Station now for 13 consecutive years uninterrupted, and that has been through multiple international crises," he said. "I don't think it's an insignificant fact that we are starting to see a number of people with the idea that the International Space Station be nominated for the Nobel Peace Prize. It's not trivial."
Bolden urged Congress to fully fund development of commercial manned spacecraft to end U.S. reliance on Russia to ferry astronauts to and from the space station. He said the Obama administration's $17.5 billion budget request for NASA in fiscal 2015 will maintain American leadership on the high frontier.
Since the retirement of the space shuttle in 2011, and in the absence of earlier funding to develop a follow-on manned spacecraft, NASA has been dependent on the the Russians to launch crews to the space station aboard three-seat Russian-built Soyuz spacecraft.
The International Space Station
As part of a new space policy implemented by the Obama administration in 2010-11, NASA is overseeing a competition to develop a commercial American manned spacecraft to restore independent access to space.
The administration asked for $850 million for commercial manned spaceflight in its fiscal 2012 budget request, but Congress approved just $397 million, a cut that pushed the first NASA flight to the station back one year to 2017.
The administration requested $830 million in its fiscal 2013 budget. Early debate in the House called for limiting the scope of the contract to a single company but a compromise eventually was reached that would provide $525 million. NASA received $696 million for commercial crew operations in fiscal 2014.
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NASA: Our relationship with Russia remains normal despite Ukraine crisis
NASA's $17.5 billion proposed fiscal 2015 budget would maintain the U.S. space agency's plan to send humans to Mars by the 2030s, to study near-Earth asteroids and to send astronauts to the International Space Station.
"Through NASA's work at all of our centers, our nation is recognized for scientific and technological leadership and knowledge-sharing that improves lives all around the world," NASA Administrator Charles Bolden said Tuesday.
The White House proposal for NASA is 1% lower than the final fiscal 2014 budget budget, and about $600 million more than it received in 2013.
Nonetheless, the proposed 2015 proposed budget would keep NASA on the path it's been on for a few years, preparing to send humans to live, explore and work on Mars by the 2030s.
Bolden noted that NASA hit several milestones on that path this year.
For instance, it oversaw two missions by private commercial companies - SpaceX and Orbital Sciences -- to resupply the space station. NASA also pushed to prepare the Orion space capsule for its first test flight later this year. The capsule is to one day carry humans into deep space.
"This budget ensures that the United States will remain the world's leader in space exploration and scientific discovery for years to come," said Bolden. "The budget supports the administration's commitment that NASA be a catalyst for the growth of a vibrant American commercial space industry, and keeps us on target to launch American astronauts from right here in the U.S.A. by 2017, ending our reliance on others to get into space and freeing us up to carry out even more ambitious missions beyond low-Earth orbit."
Regaining the ability to send astronauts to the space station would mark a major milestone for NASA.
After NASA retired its fleet of aging space shuttles in the summer of 2011, the agency has been forced to rely on Russian partners to keep the orbiter supplied with astronauts, food, spare parts and science experiments.
Bolden pointed out today that NASA hopes to have its commercial partners ferrying astronauts, as well as supplies, to the space station by 2017, lessening its reliance on foreign government agencies.
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NASA plans to mothball its infrared airborne observatory unless it can get financial help from international partners.
US President Barack Obama's proposed budget for fiscal 2015 slashes funding for the US-German project from $US84 million ($A94.17 million) to $12 million.
'Budgets are about making choices,' NASA administrator Charles Bolden said.
NASA is the main backer of the Stratospheric Observatory for Infrared Astronomy (SOFIA), which scans the skies for celestial objects that give off infrared radiation, which is invisible to the human eye.
The high-flying observatory, which cost about $US1.25 billion to develop, has a history of delays and cost overruns. It made its first observations in 2010 and reached full operational capability in February.
The two NASA centres in charge of the project, NASA Armstrong Flight Research Center in Southern California and Ames Research Center in Northern California, learnt about the proposed cut last week.
'It was a surprise to all of us,' said David McBride, head of NASA Armstrong.
SOFIA consists of an 18,000-kilogram telescope that's mounted in the rear of a modified jumbo jet. During flight, a hatch opens to allow the telescope to see its targets.
Flying between 39,000 feet and 45,000 feet, SOFIA has an advantage over ground-based telescopes because it doesn't have to peer through water vapour in the atmosphere.
NASA previously said SOFIA was expected to last at least 20 years.
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NASA unveiled its 2015 budget request on Tuesday (March 4), a $17.5 billion spending plan that would maintain the space agency's major ongoing missions. See Space.com complete coverage of NASA's 2015 budget request here:
Big Story: NASA's $17.5 Billion Budget Request for 2015 Would Fund New Science Missions, Ground Flying Telescope NASA's 2015 budget would remain essentially flat at $17.5 billion under a White House spending proposal unveiled today (March 4). It maintains the agency's biggest space programs, lays groundwork for major new astrophysics and planetary science. From our news partner SpaceNews.
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How NASA Will Spend Your Money | Video NASA Space Tech, Science & Exploration Goals in 2015 in Pictures (Gallery)
NASA budget Coverage
Russia-Ukraine Tension Won't Affect US Astronauts on Space Station, NASA Chief Says An upcoming launch and landing of astronauts to and from the International Space Station will not be affected by the current tensions between the U.S. and Russia.
NASA's $17.5 Billion Budget Request for 2015 Would Fund New Science Missions, Ground Flying Telescope NASA's 2015 budget would remain essentially flat at $17.5 billion under a White House spending proposal unveiled today (March 4). It maintains the agency's biggest space programs, lays groundwork for major new astrophysics and planetary science. From our news partnerSpaceNews.
Expert Voices: Reactions to NASA's 2015 Budget Request for Space Exploration NASA unveiled its 2015 budget request on Tuesday (March 4), a $17.5 billion spending plan that would maintain the space agency's major ongoing missions, while supporting ambitious new science missions. See reactions to the new NASA budget.
Highlights of NASA's 2015 Budget Request Unveiled The proposed 2015 federal budget released by the White House today (March 4) allocates $17.5 billion to NASA, a $200 million drop from the space agency's 2014 budget request.
NASA Chief Charles Bolden's View on 2015 Budget Request NASA unveiled its 2015 budget request today (March 4), a request that seeks $17.5 billion for the agency. See NASA chief Charles Bolden's view of the agency's 2015 budget plan.
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NASA's 2015 Budget Request for Space Exploration: Complete Coverage
NASA unveiled its 2015 budget request today (March 4), a request that seeks $17.5 billion for the agency that would fund the groundwork for some major new science missions, including a mission to Jupiter's moon Europa, but make deep cuts in the agency's SOFIA flying telescope program.
NASA chief Charles Bolden has released a detailed statement on the NASA 2015 budget request. That statement, which was released on Bolden's NASA blog, appears below, courtesy of NASA:
"Today, President Obama released his Fiscal Year 2015 budget request for the nation, and there is a lot of good news in it for NASA. The presidents funding plan for America's space program reaffirms the path we are on, and will keep us moving forward pushing farther in the solar system and leading the world in a new era of exploration.
"Through NASA's work at all of our centers, our nation is recognized for scientific and technological leadership and knowledge-sharing that improves lives all around the world.
"Over the past six years, the Obama Administration has invested more than $100 billion in America's space program, including the $17.5 billion that is part of this years budget. The presidents budget, once again, affirms the bi-partisan strategic exploration plan agreed to with the Congress in 2010. It keeps us moving toward the missions and breakthroughs of tomorrow even as it enables the tangible successes of today. [NASA's Space Tech, Science & Exploration Goals for 2015: Gallery]
"This budget keeps us on the same, steady path we have been following a stepping stone approach to send humans to Mars in the 2030's. It's a path that has seen many recent successes, from the launch of the Global Precipitation Measurement mission last week -- the first of an unprecedented five Earth Science launches this year -- to returning space station resupply missions to U.S. soil with private American companies to the power-up of Orion and the countdown toward its first flight test later this year to the final mirrors for the James Webb Space Telescope being delivered.
"This budget ensures that the United States will remain the world's leader in space exploration and scientific discovery for years to come. The budget supports the administrations commitment that NASA be a catalyst for the growth of a vibrant American commercial space industry, and keeps us on target to launch American astronauts from right here in the USA by 2017, ending our reliance on others to get into space and freeing us up to carry out even more ambitious missions beyond low-Earth orbit.
"We are committed to the International Space Station, and the latest extension guarantees well have this unique orbiting outpost for at least another decade. This means an expanded market for private space companies, more ground-breaking research and science discovery in microgravity and additional opportunities to live, work and learn in space over longer and longer periods of time.
"This budget keeps NASA's deep space exploration program on track by funding the Space Launch System (SLS) and Orion crew vehicle to take American astronauts farther into the solar system than we have ever gone before. Our stepping stone approach to sending humans to Mars involves continued research on the space station, testing our new capabilities beyond the moon, exploring an asteroid and ultimately sending a crewed mission to the Red Planet.
"In order to carry out these pioneering missions, we have to develop technologies for our asteroid redirect mission that will lead to the subsequent first crewed mission to Mars.
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Solid State Institute Russell Berrie Nanotechnology Institute, Technion, Israel
The Solid State Institute Russell Berrie Nanotechnology Institute (RBNI), at Technion in Israel, are at the forefront scientific activity. Future technolog...
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Ruk Nanotechnology - Come si usa il trattamento protettivo
Pochi, semplici passaggi per applicare correttamente il trattamento protettivo Ruk Nanotechnology. Importante pulre preventivamente le superfici con il Pul...
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Ruk Nanotechnology - Trattamento Protettivo Tessuti e Pelli
Il trattamento protettivo Ruk Nanotechnology impermeabilizza e protegge dalle macchie, dall #39;unto, dai liquidi e dallo sporco ogni tipo di tessuto e di pellam...
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Ruk Nanotechnology - Trattamento Protettivo Tessuti e Pelli - Video
Environmental Assessments in Finnish Nanotechnology Industry
My M.Sc. thesis presentation that I gave at University of Jyvskyl on May 17, 2013. For more information and to download my thesis please visit http://janne...
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Environmental Assessments in Finnish Nanotechnology Industry - Video
There's an unprecedented multidisciplinary convergence of scientists dedicated to the study of a world so small, we can't see it -- even with a light microscope. That world is the field of nanotechnology, the realm of atoms and nanostructures. Nanotechnology is so new, no one is really sure what will come of it. Even so, predictions range from the ability to reproduce things like diamonds and food to the world being devoured by self-replicating nanorobots.
In order to understand the unusual world of nanotechnology, we need to get an idea of the units of measure involved. A centimeter is one-hundredth of a meter, a millimeter is one-thousandth of a meter, and a micrometer is one-millionth of a meter, but all of these are still huge compared to the nanoscale. A nanometer (nm) is one-billionth of a meter, smaller than the wavelength of visible light and a hundred-thousandth the width of a human hair [source: Berkeley Lab].
As small as a nanometer is, it's still large compared to the atomic scale. An atom has a diameter of about 0.1 nm. An atom's nucleus is much smaller -- about 0.00001 nm. Atoms are the building blocks for all matter in our universe. You and everything around you are made of atoms. Nature has perfected the science of manufacturing matter molecularly. For instance, our bodies are assembled in a specific manner from millions of living cells. Cells are nature's nanomachines. At the atomic scale, elements are at their most basic level. On the nanoscale, we can potentially put these atoms together to make almost anything.
In a lecture called "Small Wonders:The World of Nanoscience," Nobel Prize winner Dr. Horst Strmer said that the nanoscale is more interesting than the atomic scale because the nanoscale is the first point where we can assemble something -- it's not until we start putting atoms together that we can make anything useful.
In this article, we'll learn about what nanotechnology means today and what the future of nanotechnology may hold. We'll also look at the potential risks that come with working at the nanoscale.
In the next section, we'll learn more about our world on the nanoscale.
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Newswise STONY BROOK, NY, March 4, 2014 The National Nanotechnology Initiative defines nanotechnology as the understanding and control of matter at the nanoscale, at dimensions of approximately 1 and 100 nanometers, where unique phenomena enable novel applications. Nanotechnology is taking the world by storm, revolutionizing the materials and devices used in many applications and products. Thats why a finding announced by Xiang-Feng Zhou and Artem R. Oganov, Group of Theoretical Crystallography in the Department of Geosciences, are so significant.
The paper,Semimetallic Two-Dimensional Boron Allotrope with Massless Dirac Fermions, was published on February 27 in Physical Review Letters. The lead author is Oganovs postdoc at Stony Brook, Xiang-Feng Zhou, who is also an Associate Professor at Nankai University in Tianjin, China.
Boron is in many ways an analog of carbon, Xiang-Feng says. Its nanostructuresnanoparticles, nanotubes, and two-dimensional structureshave attracted a lot of interest in the hopes of replicating, or even surpassing, the unique properties and diversity of carbon nanostructures. We discovered the structure of two-dimensional boron crystals, which is relevant to electronic applications and to understanding boron nanostructures. Our findings overturn the assumptions and predictions of numerous previous studies.
Earlier work had concluded that two-dimensional boron will adopt the geometry of flat alpha sheets (structures composed of triangular and hexagonal atom patterns) or their analogs. These findings were used to construct boron nanotubes and nanoparticles with unique properties, such as high mechanical strength and tunable electronic conductivity.
We found that the alpha sheet is massively unstable; this casts doubt on previous models of boron nanostructures, Oganov says. In particular, we discovered that flat monolayer structures of boron are extremely unstable, and the actual structures have finite thickness. This result will likely lead to a revision of structural models of boron nanoparticles and nanotubes. In particular, it is possible that hollow, fullerene-like structures will be unstable for boron.
Oganov says the newly discovered two-dimensional boron structure possesses properties superior to those of graphene. Within the 2D boron structure, electrons travel at speeds comparable to the speed of light, and behave as if they were massless; in some directions, the electrons travel faster than they do in graphene. This can be very advantageous for future electronic devices.
While velocity does not depend on direction in graphene, the new boron structure exhibits directional dependence. In the slowest direction, the elections travel 38% slower in boron than in graphene. But in the perpendicular direction, the elections travel 34% faster in boron. This is the property that could be of value for electronic applications.
The findings were made possible by the structure prediction code USPEX (Universal Structure Predictor: Evolutionary Xrystallography) that was developed by Oganov and his lab. USPEX weds a powerful, global optimization algorithm with quantum mechanics and is used by more than 1600 scientists around the world.
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PUBLIC RELEASE DATE:
4-Mar-2014
Contact: Tom Robinette tom.robinette@uc.edu 513-556-1825 University of Cincinnati
A new twist on a very old physics technique could have a profound impact on one of the most buzzed-about aspects of nanoscience.
Researchers at the University of Cincinnati have found that their unique method of light-matter interaction analysis appears to be a good way of helping make better semiconductor nanowires.
"Semiconductor nanowires are one of the hottest topics in the nanoscience research field in the recent decade," says Yuda Wang, a UC doctoral student. "Due to the unique geometry compared to conventional bulk semiconductors, nanowires have already shown many advantageous properties, particularly in novel applications in such fields as nanoelectronics, nanophotonics, nanobiochemistry and nanoenergy."
Wang will present the team's research "Transient Rayleigh Scattering Spectroscopy Measurement of Carrier Dynamics in Zincblende and Wurtzite Indium Phosphide Nanowires" at the American Physical Society (APS) meeting to be held March 3-7 in Denver. Nearly 10,000 professionals, scholars and students will attend the APS meeting to discuss new research from industry, universities and laboratories from around the world.
Key to this research is UC's new method of Rayleigh scattering, a phenomenon first described in 1871 and the scientific explanation for why the sky is blue in the daytime and turns red at sunset. The researchers' Rayleigh scattering technique probes the band structures and electron-hole dynamics inside a single indium phosphide nanowire, allowing them to observe the response with a time resolution in the femtosecond range or one quadrillionth of a second.
"Basically, we can generate a live picture of how the electrons and holes are excited and slowly return to their original states, and the mechanism behind that can be analyzed and understood," says Wang, of UC's Department of Physics. "It's all critical in characterizing the optical or electronic properties of a semiconducting nanowire."
Semiconductors are at the center of modern electronics. Computers, TVs and cellphones have them. They're made from the crystalline form of elements that have scientifically beneficial electrical conductivity properties.
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How 19th century physics could change the future of nanotechnology
17 hours ago by M.b. Reilly View of iron-oxide nanoparticles embedded in a polystyrene matrix as seen via a transmission electron microscope. These nanoparticles, when heated, can be applied to cancer cells in order to kill those cells.
(Phys.org) In current research related to improving cancer treatments, one promising area of research is the effort to find ways to selectively pinpoint and target cancer cells while minimizing effects on healthy cells.
In that effort, it's already been found in lab experiments that iron-oxide nanoparticles, when heated and then applied specifically to cancer cells, can kill those cells because cancer cells are particularly susceptible to changes in temperature. Increasing the temperature of cancer cells to over 43 degrees Celsius (about 109 degrees Fahrenheit) for a sufficient period of time can kill those cells.
So, a University of Cincinnati-led team along with researchers at Iowa State University, the University of Michigan and Shanghai Jiao Tong University recently conducted experiments to see which iron-oxide nanoparticle configurations or arrangements might work best as a tool to deliver this killing heat directly to cancer cells, specifically to breast cancer cells. The results will be presented at the March 3-7 American Physical Society Conference in Denver by UC physics doctoral student Md Ehsan Sadat.
In systematically studying four distinct magnetized nanoparticle systems with different structural and magnetic properties, the research team found that an unconfined nanoparticle system, which used an electromagnetic field to generate heat, was best able to transfer heat absorbed by cancer cells.
So, from the set of nano systems studied, the researchers found that uncoated iron-oxide nanoparticles and iron-oxide nanoparticles coated with polyacrylic acid (PAA) both of which were unconfined or not embedded in a matrix heated quickly and to temperatures more than sufficient to kill cancer cells.
Uncoated iron-oxide nanoparticles increased from a room temperature of 22 degrees Celsius to 66 degrees Celsius (about 150 degrees Fahrenheit).
Iron-oxide nanoparticles coated with polyacrylic acid (PAA) heated from a room temperature of 22 degrees Celsius to 73 degrees Celsius (about 163 degrees Fahrenheit.)
The goal was to determine the heating behaviors of different iron-oxide nanoparticles that varied in terms of the materials used in the nanoparticle apparatus as well as particle size, particle geometry, inter-particle spacing, physical confinement and surrounding environment since these are the key factors that strongly influence what's called the Specific Absorption Rate (SAR), or the measured rate at which the human body can absorb energy (in this case heat) when exposed to an electromagnetic field.
According to Sadat, "What we found was that the size of the particles and their anisotropic (directional) properties strongly affected the magnetic heating achieved. In other words, the smaller the particles and the greater their directional uniformity along an axis, the greater the heating that was achieved."
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Research tests which nano system works best cancer treatment