Sentences with phrase «microscopic structure in»

Francesco Panerai of Analytical Mechanical Associates Inc., a materials scientist leading a series of X-ray experiments at Berkeley Lab for NASA Ames Research Center, discusses a 3 - D visualization (shown on screens) of a heat shield material's microscopic structure in simulated spacecraft atmospheric entry conditions.

Researchers have discovered microscopic structures in the feathers of Humboldt penguins that keep them from icing up — and that could lead to similarly ice - resistant materials.

Not exact matches

Looking back on it, I can definitely see the similarities in terms of what it takes to envision, manage, and build complex structures, whether that's accomplished on the enormous scale of a city or on the microscopic level of a semiconductor chip with billions of transistors.

In findings published online in the Journal of Applied Physics, Charles Swanson and Igor Kaganovich report that applying microscopic structures that resemble feathers and whiskers to the surfaces inside these machines keeps them operating at peak performancIn findings published online in the Journal of Applied Physics, Charles Swanson and Igor Kaganovich report that applying microscopic structures that resemble feathers and whiskers to the surfaces inside these machines keeps them operating at peak performancin the Journal of Applied Physics, Charles Swanson and Igor Kaganovich report that applying microscopic structures that resemble feathers and whiskers to the surfaces inside these machines keeps them operating at peak performance.

This special issue addresses modern developments in controlling and manipulating light: how light - based technologies are shrinking and becoming faster (Koenderink et al., p. 516); how recent theoretical developments in the manipulation of light are being implemented to provide materials with properties not available in nature (Pendry et al., p. 521); how the quantum properties of light are being exploited in new technologies (Walmsley, p. 525); and how new light sources are coming online that can probe the structure of matter on spatial and time scales that provide an exquisitely detailed picture of our microscopic world (Miao et al., p. 530).

The researchers, including Stanford's Schnitzer, used the same microscopic technique as Dulac's team but implanted the lens in the ventromedial hypothalamus, an evolutionarily ancient structure involved in social behavior.

In the 1800s biologists found they could see the microscopic structure of the body more clearly if they injected tissues with special dyes.

What's more, this is the first time that scientists have demonstrated negative thermal expansion in all three dimensions, rather than just two, for structures with microscopic architecture, the team reports this month in Physical Review Letters.

From the in vitro reconstituted Rad3 - Rad26 complex, small - angle X-ray scattering and electron microscopic studies, it is possible to model the quaternary structure and thus bring us closer to a mechanistic understanding Rad3 - Rad26 DNA repair apparatus.

An original master gecko adhesive mold with millions of microscopic structures is made in a clean room using a photolithography process.

Other potential applications for sasers include detecting defects in microscopic structures and improving signal processing in semiconductor chips, the scientists say.

«We have made, by far, the most precise extraction to date of a key property of the quark - gluon plasma, which reveals the microscopic structure of this almost perfect liquid,» says Xin - Nian Wang, physicist in the Nuclear Science Division at Berkeley Lab and managing principal investigator of the JET Collaboration.

Using various microscopic imaging approaches, the scientists found that the unique spatial vision in the scallop is achieved through the mirror's layered structure located at the back of each eye, which is tiled with a mosaic of square - shaped crystals arranged and fine - tuned to reflect wavelengths of light that penetrate its habitat.

Their paper, published online today in the Journal of Archaeological Science, establishes that when the body is deprived of vitamin D, permanent microscopic abnormalities form in the layers of dentin, the tooth structure under the enamel, creating an ongoing record that can later be read like the rings of a tree.

To use this motion - sensing technique in a practical device, Aksyuk and Roxworthy embedded the gold nanoparticle in a microscopic - scale mechanical structure — a vibrating cantilever, sort of a miniature diving board — that was a few micrometers long, made of silicon nitride.

«In order to understand how a system chooses its rearrangement scenario,» said Douglas Durian, professor of physics and astronomy at the University of Pennsylvania, «we must make connection with the underlying microscopic structure.

While some engineers are dragging solar energy into the big time, others are getting small: They have hit upon a novel phenomenon that creates an electric current in nanotubes, hollow microscopic structures made of carbon atoms.

Specifically, in this work he has applied geometric structures similar to those of a crystal or graphene layer, not typically used to describe black holes, since these geometries better match what happens inside a black hole: «Just as crystals have imperfections in their microscopic structure, the central region of a black hole can be interpreted as an anomaly in space - time, which requires new geometric elements in order to be able to describe them more precisely.

Clay minerals can not form unless there is water available — it is an essential ingredient in their microscopic crystalline structure.

Because neutrons are microscopic magnets that carry no charge, they can be used to interact with and excite other magnetic particles in the system without compromising the integrity of the material's atomic structure.

The bristle - like structure of the keratin in a toe pad helps it to stick — each pad is covered with microscopic pillars, which then branch out at the tips into even smaller structures.

By joining forces with Professor Wim Versées at the VIB research center for structural biology, the scientists were able to figure out the three - dimensional structure of Skywalker, making it possible to study the protein in microscopic detail.

They employed an advanced microscopic technique called in vivo two - photon imaging that allows the analysis of structures as small as a thousandth of a millimetre in the living brain.

This week, in a presentation at the annual meeting of the Society for Neuroscience and in a paper in Brain Structure and Function, scientists present the first microscopic study of neurons in the cerebral cortex of the African elephant.

Twisted stalks were then observed using microscopic and spectroscopic techniques, 1) to determine whether structures are preserved and 2) to characterize their mineral and organic composition and 3) to provide spectroscopic signatures that could be useful for microfossil search in the rock record.

The 2.52 billion - year - old sulfur - oxidizing bacteria are described by Czaja as exceptionally large, spherical - shaped, smooth - walled microscopic structures much larger than most modern bacteria, but similar to some modern single - celled organisms that live in deepwater sulfur - rich ocean settings today, where even now there are almost no traces of oxygen.

Microfluidic devices are tiny chips that can sort out disease biomarkers, cells and other small structures in samples like blood by using microscopic channels incorporated into the devices.

«Cellular structures have been visualized in many microscopic studies.

In 100 characters: Well - structured microscopic pyramids grown in solution could change batteries, manufacturing @PNNLIn 100 characters: Well - structured microscopic pyramids grown in solution could change batteries, manufacturing @PNNLin solution could change batteries, manufacturing @PNNLab

The latest breakthrough in superconductors, which will be published March 20 in Science, answers a key question on the microscopic electronic structure of cuprate superconductors, the most celebrated material family in our quest for true room - temperature superconductivity.

Discerning the structure of microscopic biological agents like viruses allows them to be studied and understood in ways not possible by other means.

By studying the microscopic structure of the eggs, Dr. Varricchio and I were able to determine that the animal buried its eggs in a vegetation mound or nested in a humid environment - more like some reptiles than most open - nesting modern birds.

coccoliths: Microscopic structures of varying shape and size that are made of calcite, are secreted by calcareous nannoplankton, and are found in marine deposits from the Triassic period to the Recent.

«This accurate local structure is the important piece in relating the microscopic to macroscopic, or intrinsic properties of the ions in solution to collective properties,» said Mundy, who led the studies at PNNL.

The cylindrical chamber has grips that serve like a vice to exert pressure on meteorite samples, and X-ray imaging can study how this compression, in combination with heat and pressure, affects their microscopic structure.

He added, «One of the tricky parts is understanding how meteorites fracture at the microscopic level, and how the material will eventually burst in the atmosphere,» as meteorites have a complex microscopic structure compared to ordinary rocks and behave in different ways under stress.

There are two microscopic structures that are characteristically found in the brains of Alzheimer's patients: plaques and neurofibrillary «tangles.»

However, any imperfection in the microscopic structure of materials can severely affect the performance of the semiconductor devices.

Increased levels of candida often initiate the proliferation of long root - like structures (mycelia and rhizoids) that penetrate the mucosal membranes, creating microscopic breaks in the normal mucosal boundary of the gastrointestinal tract.

Researchers in Uppsala together with colleagues from Lund as well as Namibia, Botswana, France, and the USA have studied the microscopic structure of aggregates formed with the protein.

If a cause isn't found, a renal biopsy can be taken for histopathology so that types of cells and structure of the kidney can be analysed on a microscopic scale which may aid in the diagnosis; however, the renal biopsy isn't always reliable.

These series of drawings and paintings also depict structures that occur in nature at a level hidden to the naked eye, but these images of the microscopic are now also used as building blocks to create a composition to which they are conceptually related.

Using the shapes of diseases and cures, maps of the universe, or the molecular structure of pollutants — in short, microscopic or macroscopic «landscapes» — it depicts a physical reality that is invisible to the naked eye.

Neto's earth - toned crocheted structures are both animalistic and reminiscent of microscopic organisms in form, a strange duality that causes the works to feel like indigenous products or abodes from a parallel universe, one where Western colonization never infected native culture, allowing the tribes to continue to develop culturally and technologically on their own.

This site tends to focus on tiny residential structures — microscopic pads that people are supposed to live in.

Protozoan species of the genus Cryptosporidium, such as Cryptosporidium hominis and C. parvum, can cause diarrhea in human hosts who have ingested as few as 10 microscopic oocysts (egglike structures that are made of chitin, the same protein that forms the exoskeletons of ants and other insects) contained in feces or contaminated water.