Sentences with phrase «use ultraviolet light»

Conventional photocatalysts suffer from a low water - to - hydrogen conversion efficiency because they use ultraviolet light, which accounts for only three to four percent of the solar spectrum.
Typically our titanium dioxide applications use ultraviolet light to activate the catalyst.
A veterinarian may use an ultraviolet light to diagnose ringworm, or may examine a fungal culture taken from a cat's hair or skin cells.
A veterinarian may use an ultraviolet light to diagnose ringworm, or may examine a fungal culture taken from the affected area.
Over the past year Jackson Family Wines have been testing a prototype of the BlueMorph, a cutting edge technology especially designed to use ultraviolet light for tank sanitation, reducing or eliminating the use of water, power, and chemicals.
Miller said he doesn't know specifically how the hospital staff used his ultraviolet light - emitting robots to prevent the spread of the virus while Duncan was undergoing treatment.
Structural self - healing plastics are already being developed, and earlier this year scientists reported ones that healed using ultraviolet light.
By using ultraviolet light and superlenses capable of subwavelength imaging, scientists say they can push the photolithography boundary down to about 20 nanometers.
Irrigation water is sterilized using ultraviolet light and trucked to purification stations.
«Ancient seashell coloration patterns revealed using ultraviolet light
After two earlier published attempts that led to early - stage embryos but not confirmed embryonic stem cells, Mitalipov and colleagues took steps to preserve a protein complex believed to help primate eggs restructure transplanted DNA, and employed a new imaging system to observe the egg's chromosomes directly instead of by staining them or using ultraviolet light, which might damage DNA.
Previously, researchers in these fields used an ultraviolet light treatment, but it could take up to an hour or more to attach the surfaces together.
This glue can be cured using ultraviolet light in five seconds flat — very handy if you're operating on a living heart in flowing blood.
Thank you -LSB-...] for seeking out the best organic seeds, using the highest quality presses, using ultraviolet light proof glass bottles, and making these oils!
The «Dye test» consists of adding 1/2 oz of dye (About $ 3 cost) and using an ultraviolet light to locate the leak.
Most vets follow their physical exam with an examination of the affected areas using an ultraviolet light source (a woods lamp) in a darkened room.
A good way to detect previously soiled areas is by using an ultraviolet light; urine residues not visible to the human eye will fluoresce under the light.
(mydigitalhome.ca) The Swordfish Ultraviolet Air Treatment System from Allanson uses ultraviolet light to kill airborne moulds, bacteria and viruses in indoor air.

Not exact matches

The Ultraviolet (UV - C) light technology is a really efficient and effective way to keep things germ free, and it's certainly a better option than using harmful and messy chemicals to keep things sanitary.
Without the use of a black light, the extent of the disease could go unnoticed and worsen over time with ultraviolet ray exposure or laser therapy.
The researchers used the Hubble Space Telescope to study the «colors» of far ultraviolet light coming from blue stragglers and their companions.
The Gideon Air Purifier uses a combination of air ionization and ultraviolet light to kill 98 % of airborne bacteria and viruses.
To prevent such errors, over time the two established several protocols to combat contamination, using bleach, ultraviolet lights and positive - pressure clean rooms.
The technology controls the amount of light crops receive using a thin covering of nano - tech film that blocks out harmful ultraviolet light while optimizing beneficial light.
Those effects will likely differ depending on the kind of plastic, which varies depending on its starting polymer and the additives used to impart certain qualities such as flexibility, sturdiness or durability under ultraviolet light.
«We control the below - threshold harmonic light emission by using electromagnetic fields with time - dependent ellipticity, like we have done to the above - threshold high - order harmonics,» said Chang referring to the creation of a 67 - attosecond pulse of extreme ultraviolet light, which earned him international recognition.
So, because we can't sense ultraviolet light with our visual pigments, we can't even pick up on the cues that turkeys are probably using, and now that I know that this is changing, the next step is to find out whether females actually care about this change, which we don't know whether there is a behavioral response to turkeys being different in their ultraviolet reflections.
But the near ultraviolet is actually used by some organisms, some birds, lots of insects, and it turns out that turkeys are one of the bird species that can see the ultraviolet light.
Principal investigator Adrian Daw helps calibrate the Extreme Ultraviolet Normal Incidence Spectrograph using colored lights before its latest trip to study the sun.
But since the team used higher levels of ultraviolet light than previous experiments, about 5 percent of the CO2 turned to O2 and C, while the rest became CO and O.
Companies kill deadly bacteria and strip out heavy metals in water using new technologies that range from ultraviolet (UV) light to microbubbles
«Our team was able to accomplish this task by using Raman spectroscopy with an ultraviolet laser, instead of conventional visible light lasers.
More specifically, New York City officials are building a water disinfection facility some 30 miles (50 kilometers) north of Manhattan on a 153 - acre (62 - hectare) property in the Westchester County towns of Mount Pleasant and Greenburgh that will use ultraviolet (UV) light to destroy water - borne pathogens such as Escherichia coli, giardia, and cryptosporidium in reservoirs that serve city dwellers.
In 2015, chemists from Cambridge University, led by John Sutherland, who is a co-author on the current study, discovered a way to synthesize the precursors to RNA using just hydrogen cyanide, hydrogen sulfide, and ultraviolet light — all ingredients that are thought to have been available on early Earth, before the appearance of the first life forms.
Modified cameras that are sensitive to ultraviolet light were used to photograph the ladybirds, allowing the researchers to use special modelling and image analysis techniques to analyse how each species would appear to predatory birds, which have very different color vision to humans.
The EUSO telescope, which will be used to find debris, was originally planned to detect ultraviolet light emitted from air showers produced by ultra-high energy cosmic rays entering the atmosphere at night.
«Usually, light in the violet and ultraviolet region is used,» says Robert Liska.
The group of Majed Chergui at EPFL, along with national and international colleagues, have shed light on this long - standing question by using a combination of cutting - edge experimental methods: steady - state angle - resolved photoemission spectroscopy (ARPES), which maps the energetics of the electrons along the different axis in the solid; spectroscopic ellipsometry, which determines the optical properties of the solid with high accuracy; and ultrafast two - dimensional deep - ultraviolet spectroscopy, used for the first time in the study of materials, along with state - of - the - art first - principles theoretical tools.
And you do all that using very sharp pulses of ultraviolet light, which we generate in my lab.
Now, astronomers observing the cluster in ultraviolet light using the Hubble Space Telescope have found a total of nine stars with masses of more than 100 suns, the largest collection of very massive stars found to date.
Duke University researchers have developed tiny nanoparticles that help convert carbon dioxide into methane using only ultraviolet light as an energy source.
Astrophysicist Martin Barstow of the University of Leicester in the U.K. and colleagues used the Far Ultraviolet Spectroscopic Explorer (FUSE) spacecraft, which studies cosmic rays and similar phenomena, to gauge the density of clouds located out to about 300 light - years from the sun.
So, late in 2012, in hopes of detecting vapor plumes, he and his colleagues used the Hubble Space Telescope to observe Europa in ultraviolet light.
They are also developing an alternative delivery system that is more amenable to modern dental practices: The chosen drug will be dissolved in a gel that is injected into a cavity and bathed with ultraviolet light to solidify it — a quick and easy procedure similar to one dentists already use to seal and repair teeth.
The treated fibers could be used to transmit a wide range of infrared, visible and ultraviolet wavelengths of light, according to the research team.
For artificial lighting throughout the museum, conservators chose novel bulbs that use ultraviolet LEDs rather than the standard blue ones, and different blends of light - emitting phosphors that better approximate natural light when operated at the low intensity needed to avoid damaging fragile pigments.
Using its latest camera, Hubble shows a wider and sharper view of the Eagle Nebula's «Pillars of Creation,» immense columns of cold gas bathed in the ultraviolet light of nearby massive young stars.
Researchers at the National Institute of Standards and Technology (NIST) have put this hydrogen «cure» to practical use, making optical fibers that transmit stable, high - power ultraviolet laser light for hundreds of hours.
When used at NIST to transmit laser light to trap ions (electrically charged atoms), the fibers reduce stray light and fluctuations in laser beam pointing and make it possible to transfer ultraviolet light between separate optical tables, the paper notes.
Unfortunately, they are also difficult to detect, so a system like the artificial white hole that can convert them to easily detected ultraviolet light could find uses in many lab settings, Faccio says.
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