Sentences with phrase «of tungsten»

Researchers at the Vienna University of Technology have now succeeded for the first time in creating a diode made of tungsten diselenide.

Adams was the first food science researcher to document high levels of tungsten in superfoods.

For the first time, the Penn State researchers grew a single atomic layer of tungsten diselenide on a one - atom - thick substrate of graphene with pristine interfaces between the two layers.

Out of concern for our customers and our concern for safety as a whole, we had a toxicity study performed based on the highest levels of tungsten found in our rice protein drinks.

The flexible membrane is made of tungsten oxide — used in «smart windows» that modulate the amount of sunlight and heat passing through — and a water - soluble polymer.

By the end of the season (early Sept), I suddenly noticed that one of my tungsten carbide tips was COMPLETELY gone, as well as part of the remaining metal tip structure.

The material of choice was tungsten diselenide: It consists of one layer of tungsten atoms, which are connected by selenium atoms above and below the tungsten plane.

Going forward, scientists will have to hunt for other areas showing outsized amounts of tungsten - 182 with the hope of illuminating both the earliest portion of Earth's history as well as the place in Earth's interior where this ancient material is stored.

As the sample was tilted 62 times, the researchers were able to slowly assemble a 3 - D model of 3,769 atoms in the tip of the tungsten sample.

About 10 minutes before the one - ton robot dropped through the Martian atmosphere, it got rid of its cruise stage and two 165 - pound blocks of tungsten, which had kept the rover stable during its journey to Mars.

In the team's experimental setup, electricity was supplied to a tiny piece of tungsten selenide (small rectangle at center) through two gold wires (from top left and right), causing it to emit light (bright area at center), demonstrating its potential as an LED material.

Colorized TEM image of tungsten disulfide triangles (black) growing on graphene substrate (green).

In the upper right corner, the blue dots represent the layout of tungsten atoms and the red dots represent tellurium atoms.

The basis for this innovative structure are tiny particles of tungsten oxide which, because of their saturated yellow colour, can also be used for photoelectrodes.

The work by Atanasov and colleagues shows, however, that ALD of tungsten on Kevlar yields yarns that are highly flexible and highly conductive, around 2,000 S / cm («Siemens per centimeter,» a common unit used for conductivity).

The results of the study performed on our Rice Protein showed that even at the maximum level of tungsten found in our products, they are safe for daily consumption and will not cause any harmful effects.

Analysis also showed that tungsten - VI is the most common form of tungsten in natural sediments.

Willbold found that Isua rocks carry a different ratio of tungsten isotopes to both modern terrestrial rocks and meteorites (Nature, DOI: 10.1038 / nature10399).

Miao and his team showed that the atoms in the tip of the tungsten sample were arranged in nine layers, the sixth of which contained a point defect.

«We start with a black crystal and then we peel layers of it off until we have an extremely thin later left, an atomically thin sheet of tungsten diselenide,» said Vamivakas.

«Very little is known about the biogeochemistry of tungsten in the environment,» said Saugata Datta, professor of geology at Kansas State University.

First, they prepared clusters of tungsten trioxide by directly evaporating the tungsten trioxide onto a base of rutile titanium dioxide.

This method produces identical clusters of tungsten trioxide.

They have flocked to its gigantic Turbine Hall to watch a glowing «sunrise» from hundreds of tungsten lights in Olafur Eliasson's «The Weather Project,» sifted Ai Weiwei's hand - painted sunflower seeds through their fingers and heard actors telling intimate stories in Tino Sehgal's «These Associations,» among many highlights.

Phillip Davis is founder and president of Tungsten Marketing, a branding firm specializing in naming new businesses, products and websites.

The lattice they are currently working with is made up of tungsten rods that are half a micron wide and 1.5 microns apart.

You can think of it as a field of tungsten filaments shrunk to microscopic proportions.

«This detector combines the high density of tungsten with the fine spatial resolution of silicon to separate very closely spaced particles.

This study used data from the Agency for Toxic Substances and Disease Registry and used the No Observed Adverse Effect Level for tungsten based off the (Schroeder and Mitchener, 1975) study of tungsten in drinking water.

A quintet of tungsten tossers who are punching well above their weight — not literally!

This cross-section micrographs of a tungsten thermal emitter used in the experiment.

degree in chemical engineering, with honors, in 2004, then went on to do a Ph.D. at the University of Szeged, focusing on the preparation of tungsten oxide nanosystems using colloid chemistry.

The figure shows the measured 3 - D atomic positions of a tungsten tip, consisting of nine atomic layers, labeled with crimson (dark red), red, orange, yellow, green, cyan, blue, magenta and purple from layers one (top) to nine (bottom), respectively.

For instance, a combination of tungsten and titanium dioxide could be used to create self - cleaning surfaces for interior spaces.

The researchers compared the images from the first and last scans to verify that the tungsten had not been damaged by the radiation, thanks to the electron beam energy being kept below the radiation damage threshold of tungsten.

To test his theory, he measured the isotopic mix of tungsten in rocks from an ancient formation that predates the proposed meteor shower.

The choice of tungsten diselenide as material turned out to be essential: It provides four photoelectron emission channels with different initial state properties and the outstanding stability of the surface enabled long - term data collecting improving the statistical significance.

Instead, the UD team made a catalyst of tungsten carbide, which goes for around $ 150 per kilogram.

«In a regular light bulb, the filament is a long and curly piece of tungsten wire.

Researchers at the MIT (Cambridge, USA) and at the University of Washington (Seattle, USA) have also discovered the great advantages of tungsten diselenide.

These projects included the failure analysis of vascular stents for a medical device firm and wear analysis of tungsten carbide punches for BCL Magnetics, a lamination and magnetics products manufacturer.

During the AVS 61st International Symposium & Exhibition, being held November 9 - 14, 2014, in Baltimore, Maryland, the researchers will describe how they were able to «weave» high - strength, highly conductive yarns made of tungsten metal on Kevlar — aka body armor material — by using atomic layer deposition (ALD), a process commonly used for producing memory and logic devices.

Their report on the material, which is made out of tungsten oxide and a common polymer used in medicines and food, appears in the journal ACS Applied Materials & Interfaces.

In a study described today in Nature, researchers measured the minuscule gravitational tug between rubidium atoms and a 516 - kilogram array of tungsten cylinders.

In order to recreate artificial moth eyes from metal oxide microspheres, Florent Boudoire sprays a sheet of glass with a suspension of plastic particles, each of which contains at its centre a drop of tungsten salt solution.

The new plug pumps several hundred watts of power into the mixture to start combustion, compared to tens of watts from a conventional plug, and is made of an alloy of tungsten, nickel and iron, tough enough to survive the powerful spark.

Similarly, the team found that the number of tungsten - regulating iron oxide particles is controlled by the pH in the groundwater.

The process of tungsten being leached from the surrounding sediment into the groundwater can be reduced if the ironoxides are in the water and the water has a neutral pH level, according to Datta.

This helped researchers understand the speciation of tungsten in natural sediments in the environment and helped them detect why tungsten forms organosulphur complexes that can be soluble in groundwater, Datta said.

The study is part of a three - year, $ 515,000 National Science Foundation - funded project between Kansas State University and Karen Johannesson at Tulane University that is titled «Collaborative Research: Chemical Hydrogeologic Investigations of Tungsten: Field, Laboratory, and Modeling Studies of an Emerging Environmental Contaminant.»