Sentences with phrase «microscopic structure of»

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.

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

We research how the microscopic structure of food and how food is processed affect the quality of everyday food products.

The microscopic structure of tissue.

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.

The process is then followed by high temperature activation annealing (about 600 to 900 degrees Celsius) to form a honeycomb lattice of carbon atoms, a typical microscopic structure of graphene.

«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.

So scientists decided to look at the microscopic structure of hair.

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

We research how the microscopic structure of food and how food is processed affect the quality of everyday food products.

Scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and NASA are using X-rays to explore, via 3 - D visualizations, how the microscopic structures of spacecraft heat shield and parachute materials survive extreme temperatures and pressures, including simulated atmospheric entry conditions on Mars.

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.

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.

This year, though, a team from Lawrence Livermore National Laboratory has developed an approach that uses a regular laser - sintering printer to control the microscopic grain structure of the metal.

Microscopic, short - lived structures of this sort are possible, as are large ones with long characteristic time - scales.

Although we can articulate how ambiguity and how commitment structure each phase of the microscopic process by which an actual occasion realizes itself, we must also spell out just how ambiguity and commitment structure the macrocosmic process of commitment that structures ordinary experience, the moral life, social existence, responsibility for our past acts.

Seriously, when you start getting down to a microscopic level and looking at atoms and molecules and the structures of cells, the world changes.

Pan, Schweitzer and their team used both scanning and transmission electron microscopy to get microscopic details of the feather's surface and its internal structure.

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 performance.

Ahlberg's team instead looked at a single specimen of Psarolepis, slicing through the jawbone, skull bones, and scales to get a microscopic peek at their internal structure and so identify what they were made of.

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).

Prof. Peters with his research team are now developing a model that calculates the properties and behaviour of snow masses under high and low strain rates based on the structure of microscopic snow particles.

«At the very microscopic level,» he says, «we have developed techniques like two - photon microscopy, which allows extremely detailed examinations of structures and processes within cells.»

But it's only because it's on the microscopic level that this structure can overcome the problem of maintenance: the molecules that control the wheel and axle reach it by diffusing through the cell's cytoplasm.

A few microscopic techniques can focus light deep into the intact brains of dead animals to study its structure without damaging the axons, but much of this light is scattered away by the fatty lipid membranes that surround individual cells, making the technique less than perfect.

Using the new methods of micromachining, which borrow technology for making computer chips to carve out and build up microscopic structures on silicon wafers, Peter Gammel and his colleagues at Bell Labs / Lucent Technologies reduced three of the critical devices of a cell phone to Lilliputian size that will allow all the components of a phone to be constructed on a single chip.

The location, size, form and structure of each removed polyp was documented and sent for microscopic examination.

On the scale of microscopic structures, we are virtually blind.

The Osaka team previously combined two different types of transition - metal disilicides to form a microscopic structure with alternating layers of different alloy crystal.

The best idea so far has been carbon nanotubes — microscopic structures that can pack away large quantities of hydrogen at normal pressure within a relatively small space.

Most are microscopic and unicellular, with a relatively simple cell structure lacking a cell nucleus, and organelles such as mitochondria and chloroplasts.Bacteria are the most abundant of all organisms.

He said glass appeared to be structured randomly, but it was actually quite ordered at the microscopic level of a few atoms.

To test the underlying mechanisms, they built a large - scale structure that helps mimic the behavior of microscopic particles.

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

For example, he is using data from AFLOWlib to study why some alloys can form metallic glass — a peculiar form of metal with a disordered microscopic structure that gives it special electric and magnetic properties.

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.

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.

Michael Barnhardt, a senior research scientist at NASA ARC and principal investigator of the Entry Systems Modeling Project, said the X-ray work opens a new window into the structure and strength properties of materials at the microscopic scale, and expands the tools and processes NASA uses to «test drive» spacecraft materials before launch.

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.

Microscopic picture of a fabricated silicon chip and two optical fibers above grating structures to couple the light into and out of the chip.

«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.

Since Ramón y Cajal's first illustrations of neuronal structures, neuroscientists have benefited from new ways to visualize the microscopic components within the brain.

Once inside the lungs, the microscopic fungal spore transforms into a spherule (pictured), a podlike structure 10 to 20 times the size of the original spore (30 or 40 microns, or about half the width of a human hair).

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.

«Thin microscopic sections of dirt samples show organization of soil grains, revealing whether an earthen structure was human - built or laid down as part of a natural sedimentation process,» Kidder said.

Microscopic anatomy is the study of minute anatomical structures assisted with microscopes, which includes histology (the study of the organization of tissues), and cytology (the study of cells).

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.