Sentences with phrase «of precursor materials»

But once the adrenals become chronically over-worked, more and more of the precursor materials (used to make sex hormones) get diverted to make cortisol, resulting in a decrease in sex hormones.

Materials scientists have developed a new strategy for crafting one - dimensional nanorods from a wide range of precursor materials.

And because it uses standard liquid solvents, the new process could take advantage of a broad range of precursor materials.

Or, one material could be used as a template to be coated by another material with the simple substitution of precursor materials.

Not exact matches

«Our fundamental contribution in this work is to judiciously prepare a star - shaped block co-polymer in which the inner block has the capability to coordinate with metal precursors while the outer block allows photo - responsive materials to interact, which in turn renders the crafting of photo - responsive gold nanoparticles for light - enabled reversible and reliable self - assembly.»

Liquid - phase precursors had been demonstrated before, but the materials had to be enclosed in a tiny capsule where the reaction took place, limiting fabrication flexibility, capacity and utility of the approach for 3D nanofabrication.

The researchers used a variety of precursors to synthesize porous carbon - based sorbent materials chemically activated at temperatures between 500 and 800 degrees Celsius (932 to 1472 degrees Fahrenheit) and carefully measured their carbon dioxide - capturing capacities at pressures between 0 and 30 bar.

A magnet floats on the magnetic field of a superconductive material, the precursor state of the appropriately named strange metals.

The first evidence of organic material on Ceres opens the door to the possibility that other asteroids harbour precursors to primitive life

To demonstrate the material, the lab placed the precursor into its custom chemical vapor deposition (CVD) furnace and used it to coat an array of light - absorbing, semiconducting titanium dioxide nanorods.

This new technique enables tight control over diameter, length and surface properties of the nanorods, whose optical, electrical, magnetic and catalytic properties depend on the precursor materials used and the dimensions of the nanorods.

The process, using room temperature mechanical ball milling, provides a lower cost method to produce these alkali metals which are widely used in industrial processes as reducing and drying agents, precursors in synthesis of complex metal hydrides, hydrogen storage materials, and in nuclear engineering.

The resulting antibody has a high affinity for the polymerized form of fibrin and a low affinity for the precursor material.

The approach eliminates the need for linear polymeric precursors and high dilution, drawbacks of traditional macrocyclization strategies, and it effectively removes the barrier to producing large quantities of pure cyclic material.

Researchers make 2 - D materials by the exfoliation method — peeling a slice of material off a larger bulk material — or by condensing a gas precursor onto a substrate.

The cluster we report in this paper serves as an excellent solution precursor to make very smooth thin films of amorphous aluminum indium oxide, a semiconductor material that can be used in transparent thin - film transistors.»

When life on Earth was first getting started, simple molecules bonded together into the precursors of modern genetic material.

They produce the materials by heating a readily available precursor material, which also allows them to incorporate triply charged europium ions, Eu3 +, as «dopants» into any of the LaOBr nanocrystals.

«We have presented a remarkably simple route to 3D that starts with planar precursor structures formed in nearly any type of material, including the most advanced ones used in photonics and electronics.

The first so - called helium nova, the possible result of a large white dwarf sucking material from a hydrogen - deficient companion star, may be a precursor to a supernova

More than 90 percent of carbon fibers use the petroleum - based precursor polyacrylonitrile, or PAN, as their raw material.

Vela said variations in synthesis — changing reaction temperature and time, choice of metal ion precursors, adding certain ligands — allows the chemists to control the material's structure and the size of its nanocrystals.

He continues to develop new and improved precursor ink solutions and reactive thermal processing strategies to enable the synthesis of increasingly compositionally diverse, discrete composition material libraries via ink - jet printing and post-deposition reactive thermal processing.

So this precursor for life can form in interstellar space to become an integral part of the material that's condensing as protoplanetary disks around these young stars.

The new material examined in this study is an iron - nitrogen - carbon (Fe - N - C) electrocatalyst, synthesized with two nitrogen precursors that developed a hierarchical pore structure to expose a large fraction of the carbon surfaces to oxygen.

Paul O ′ Brien is distinguished for his many original contributions to chemistry and materials science, notably in the use of novel molecularly defined precursors from which to prepare important functional electronic or optical materials in well - defined forms.

17 - hydroxyprogesterone (17 - HP) is a precursor to cortisol, in other words one of the «raw materials» that the body uses to create cortisol.

The film doesn't shy away from the horrors of slavery, yet the grim material is balanced with a deliciously dark sense of humour - just check out the scene with a band of white - sheeted vigilantes, acting as a precursor to the KKK, which is one of the funniest scenes Tarantino has ever written.

Sucking or nursing might not lead to full - blown eating of materials like plastic, but it is a precursor.

We even have a four - page characteristic on Ni No Kuni II: Revenant Kingdom, a two - page break down on the expanded content material coming to Middle - earth: Shadow of War, and a GI Classic analyzing the Metro collection precursor, S.T.A.L.Okay.E.R.: Shadow of Chernobyl.

This material was developed in the first half of the 20th century, and was a precursor of fibreglass.

Elsewhere Costa has deployed coloured polythene bags (rubbish and recycling sacks from different London boroughs) to create geometrical wall pieces akin to Constructivist paintings; while in a series of small - scale paintings, he combines the methods and motifs of embroidery, collage and cartoons Quoting artistic precursors in seemingly degraded materials or formats, Costa playfully interrogates the «real value» of works of art, addressing the question of how unspectacular or even desultory materials might transmute into an art object and vice versa.

Third, even coals of advanced rank may reveal the presence of precursor plant material.

At that time, there were instant messaging, online discussion forums, dating sites, «newsgroups» where users post articles or other material of interest, and group sites such as Google and Yahoo! Groups, which were the precursors of social networking.

In other words, the preparation and assessment of connection materials should form part of the mediation framework, and not be a precursor to it.