Sentences with phrase «less radiation by»

Not exact matches

80 keV (125 times less than permitted) With additional safety aspects we furthermore guarantee the absolutely safe use of our X-ray systems in the inspection of products in the food sector: - We only use low - energy, soft X-rays - X-ray voltage and current are individually adapted for every product - The X-ray tube is hermetically shielded - All the radiation protection covers are monitored by safety switches - X-rays can only be turned on if the system functions perfectly

Mild gastrointestinal and genitourinary toxicity as reported by doctors was observed more frequently in patients getting the higher daily dose, shorter frequency radiation, but no differences were observed in more severe side effects, which were rare (less than 5 percent) with either regimen.

Robert Finkelman, a former USGS coordinator of coal quality who oversaw research on uranium in fly ash in the 1990s, says that for the average person the by - product accounts for a miniscule amount of background radiation, probably less than 0.1 percent of total background radiation exposure.

Solar radiation management attempts to offset effects of greenhouse gases by causing Earth to absorb less solar radiation.

Having a mass of only less than seven per cent of the mass of the Sun, they are unable to create sufficient pressure and heat in their interiors to ignite hydrogen - to - helium fusion, a fundamental physical mechanism by which stars generate radiation.

Avocados, for example, gave off 0.16 μGy / hr of gamma radiation — slightly less than the 0.17 μGy / hr emitted by a banana.

Such a material could also allow heaters to maintain a constant temperature by emitting less radiation in cold conditions and more in hot conditions.

The treatment's effect on the original tumor was less dramatic, but still impressive: The combination of Listeria and radiation shrank the tumor by 64 %, and Listeria alone by about 20 % compared with saline - treated mice.

The general population in northeastern Japan, however, has considerably less access to accurate, non-invasive radiation dose measuring equipment, a troubling situation made more so by Wednesday's announcement by Japan's science ministry that small amounts of cancer - causing radioactive strontium have been detected in soil and plants outside the 30 - kilometer zone around the plant where the government has advised people to stay indoors.

Males who use their long, elegant tail feathers to attract mates now have less stuff to strut: Their tails are short, probably deformed by radiation.

Storm clouds play a big role in keeping the planet cool by reflecting heat back into space — but they're not as effective farther north or south, where there's less solar radiation anyway.

«Seyfert» galaxies, which are all around us, are sort of miniquasars, producing a torrent of radiation from their core that, though it's far less than a quasar's, is spectacular by ordinary galactic standards.

Without it, the universe today would certainly be a much less interesting place, because there would be essentially no matter left around; annihilations would have converted everything into electromagnetic radiation by now.

One possibility, says Chao, is that high numbers of CNVs somehow cause DNA damage by making dads less able to protect themselves from environmental insults such as radiation.

Men who attended a structured yoga class twice a week during prostate cancer radiation treatment reported less fatigue and better sexual and urinary function than those who didn't, according to a clinical trial led by the Perelman School of Medicine at the University of Pennsylvania.

Its radiation sculpts the surrounding cloud by blowing some of the gas away, creating dense and less dense regions.

As less radiation reaches the surface, the atmosphere may become more stable and clouds more persistent than usual, and less water will evaporate from the surface, a finding corroborated by Qian's China study.

The size of the planet can also be estimated by looking at how much less radiation Earth sees from the star when a planet passes in front of it, according to a statement from the University of Bern.

However, scientists have observed that the radiation being emitted by the accretion disk around Sagittarius A * is much less than one would expect.

New research led by a radiation oncologist at Roswell Park Cancer Institute indicates that less may be more when it comes to some forms of radiation therapy for cancer.

If you're concerned about the radiation, although it's far less exposure than a nuclear stress test or heart catheterization, take an antioxidant vitamin pack 45 minutes before the CT to reduce the DNA risk by 50 %.

Nutritional ketosis has received a lot of attention by cancer researchers in recent years, and many studies show it has great potential not just as a form of cancer prevention but also treatment — in combination with other treatments such as chemotherapy and radiation.16 Research is looking at whether non-toxic metabolic therapies and drug cocktails may be just as effective, with less toxicity.

The bottle itself is confirmed to be made from glass, and quite clearly a dark amber rather than the blue used by cheaper brands, which defends against UV radiation less effectively.

Although cats continue to secrete the radioisotope for several weeks upon their return home, the resulting radiation exposure to the owner is less than the radiation experienced by a passenger on a round - trip flight from New York to Los Angeles.

Allowing for that falling on the oceans, and further decline due to angle of incidence as distance from equator increases, less the amount required by vegetation for photosynthesis, we are left with how much energy for conversion of solar radiation to heat / electricity / catalytic reaction to other fuels?

CO2 (and some other gases) in the atmosphere are however more opaque to LWIR; they absorb that a chunk of that outgoing radiation and re-radiate it in all directions — so that a fraction less than half is re-radiated downwards; which has the effect of slowing the transfer of heat (by radiation) out of the atmosphere.

Orbital forcing causes ice ages or ends them by redistributing incoming solar radiation over seasons and latitudes so that ice sheet growth or decay is more or less favorable on a regional basis, with a resulting global average albedo feedback.)

Actually, though, most of the OLR originates from below the tropopause (can get up around 18 km in the tropics, generally lower)-- with a majority of solar radiation absorbed at the surface, a crude approximation can be made that the area emitting to space is less than 2 * (20/6371) * 100 % ~ = 0.628 % more than the area heated by the sun, so the OLR per unit area should be well within about 0.6 % of the value calculated without the Earth's curvature (I'm guessing it would actually be closer to if not less than 0.3 % different).

But convection is less and less efficient when pressure decreases, while cooling by radiation is more and more efficient.

The additional exposures received by most Japanese people in the first year and subsequent years due to the radioactive releases from the accident are less than the doses received from natural background radiation (which is about 2.1 mSv per year).

The radiation to space is made less efficient by the existence of a warm stratosphere above the air, generating IR radiation from above, and limiting the net cooling of the upper troposphere.

After Mount Pinatubo erupted, while overall solar radiation was reduced by less than five percent, data showed a reduction of direct radiation by as much as 30 percent.

If the objective was to develop a general circulation model that matches reality rather than to push an agenda likely one of model fixes would be modify to GCMs (modeling of planetary cloud cover) to match Lindzen and Choi finding that planetary cloud cover in the tropics increases or decreases to resist forcing changes by reflecting more or less radiation off to space.

To me, it is more likely the fluctuation in E-UV coming from the sun that causes the warming and cooling effects by changing the reactions that are happening on TOA, i.e. O3, HxOx and NOx are rising now, causing more back radiation of F - UV, meaning less energy going in the oceans.

By increasing the humidity, the solar energy is used more efficiently, or putting it another way there is less energy lost to space by the emission of longwave radiation because humid air has a strong greenhouse effecBy increasing the humidity, the solar energy is used more efficiently, or putting it another way there is less energy lost to space by the emission of longwave radiation because humid air has a strong greenhouse effecby the emission of longwave radiation because humid air has a strong greenhouse effect.

Once the radiation limits begin to be increased this should have a catalytic effect on reducing emissions: 1) it will mean radiation leaks are understood to be less dangerous that currently thought > less people evacuated from effected zones > reduced cost accident of accidents — reduced accident insurance cost; 2) population takes another look at the effects of radiation > gains an understanding it is much less harmful than they thought > fear subsides > less opposition > easier and less expensive to find sites supported by the people nearby > planning and sight approval costs come down over time

This is about the radiation from the Earth to space, which is prevented by the atmosphere's greenhouse gases, and as we pour more and more greenhouse gases into the atmosphere, less energy will be sent into space.

Plankton is largest CO2 absorber, but also oceans are near or largest (by far largest in the more distant past) CO2 emitters, so if CO2 happen to be an important factor than: High UV / radiation = reduction in plankton = less CO2 absorbed = warming, reverse holds true.

Inter-molecular radiation reduces the gradient by up to about a third, but by less than 5 % on Uranus where there is just a little methane causing that.

If almost all of the heat transfer from surface to upper atmosphere is by convection, then you can change anything you want about the radiation system, more GHG, less, it won't matter.

I would be looking to know what ranges of radiation the sun has increased by and whether some bands had decreased, less solar wind perhaps, allowing more cosmic days through.

If less energy comes in, the governor will try to maintain the energy flux into the system (Willis's retarding the appearance of clouds) but once all stops have been pulled out (the sky is clear morning to night), then the engine slows down — slower air and water currents, less addition of heat to the polar areas, dissipation of what heat has accumulated by radiation into space and return cold water not getting the heating it formerly did.

These can not — and will not — destabilize the atmosphere to start up convection, because they always move net heat in the direction that makes convection even less likely, given that convection is driven by temperature differences that conduction or radiation further reduce.

The reason, Werner said, is because the loss of snow and ice makes the earth's surface less reflective, meaning solar radiation — or heat — is absorbed in greater amounts by the exposed dark ocean or tundra.

The stratosphere is less transparent to SW radiation because of absorption of UV by oxygen and ozone and more transparent to LW radiation.

The absence of correlation for temperature decrease and CO2 decrease means that the process is not reversible as it would be, if associated to less radiation absorption by CO2.

So if there's less solar radiation to be trapped by the greenhouse gases, it reduces the warming.

Co2 can only cause the effect where there is extra radiation for it to absorb, in the low sunlight model there is less available radiation in the bandwidths that would already be more than saturated by elevated co2.

The lower sunlight means less radiation to be absorbed by co2, you can not make up for lower input because there is a limit on availability of radiation to absorb by co2.

The back - radiation can not be more energetic than the source, and in fact, must be of lesser energetic state than the original source, for it has shed some energy by collision with other forms of matter (absorbed, re-radiated, etc...).