Sentences with phrase «as chemical composition»
The researchers had to estimate such variables as the chemical composition of the atmosphere, the amount of sunlight reflected by Earth's surface back into the atmosphere, and the movement of heat and salinity in the oceans at a time when all the continents were consolidated into the giant land mass known as Pangaea.
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Relationships between physiological indicators in blood, and their yield, as well as chemical composition of milk obtained from organic dairy cows.
A spectrograph spreads out the light gathered by a telescope so that it can be analysed to determine properties of celestial objects such as chemical composition or their radial velocity through the Doppler effect.
A spectrograph spreads out the light gathered by a telescope so that it can be analyzed to determine such properties of celestial objects as chemical composition and abundances, temperature, radial velocity, rotational velocity, and magnetic fields.
The researchers were puzzled by a nonlinear drop in surface water diffusivity — as measured by the Overhauser dynamic nuclear polarization apparatus in the Han lab — as the chemical composition of the silica surface moved from hydrophobic to hydrophilic.
This plot of roughly 45,000 asteroids that orbit between Mars and Jupiter reveals «families» of asteroids that share characteristics such as chemical composition (colors), orbit size (horizontal axis) and orbit tilt (vertical axis).
The bright colors in this moon dirt represent the volume and scattering of surface material as well as the chemical composition of matter underneath the surface.
Certainly he intended to convey that the character of A, which was decisive in specifying the nature of its interactions with B, was a dynamic character which had some affinity with an intention or an objective, or instruction, rather than a mere static characteristic, such as a chemical composition is usually considered to be.
Not exact matches
In the vast majority of cases that have been studied, mixtures of chemicals change in composition, as time proceeds, in such a way as to approach a condition of chemical equilibrium.
What this means is that, in favorable cases (suitable chemical composition of the system and of the surroundings), there is a closed set of states such that the existence of one brings about another, and then the successor states, so that the system eventually returns to a state which is the same as the starting state.3 (As James Joyce put it, «Finagin.»as the starting state.3 (As James Joyce put it, «Finagin.»As James Joyce put it, «Finagin.»)
The New York WaterMaker is a patent - pending water source replication system that not only functions as a commercial water filter, but also replicates the exact hardness, molecular structure, and chemical composition of a specific location's water, with a key focus on replicating New York City water.
MDX can solve this problem as it uses two energy spectrums and a dual - layer detector to filter materials by their chemical composition, leaving a clear high - definition image that shows density difference based on chemical composition.
The most comprehensive methodology for testing the chemical composition of unrecorded alcohol products was developed as part of the Alcohol Measures for Public Health Research Alliance (AMPHORA) project, a collaboration among 13 EU member states funded by the European Commission.
Highly acidic foods, such as sauces like BBQ and ketchup, have a higher risk of changes to their chemical composition due to their low pH. Both acid hydrolysis (decomposition) and the reaction of additives and substitutions are accelerated and dictated by the temperatures that the ingredients are exposed to.
In summary, a capsule of ground piquin pods will virtually be the same in chemical composition as a capsule of ground cayenne pods.
Although the U.S. hasn't banned BPA, consumers here have benefited from our Northern neighbor's efforts, as companies don't generally want to make product of different chemical compositions for similar markets.
This chemical composition acts as a «fingerprint» of the water that the shells were formed in.
Cassiopeia A Just before it explodes as a supernova, a massive star is like an onion, with layers of different chemical compositions atop one another.
«Chemical composition of the nanoparticle is as, if not more, important at inducing toxicity,» the authors said in their report.
Stellar dating involves measuring properties such as mass, chemical composition and temperature, and comparing them with models of how those properties should change over time for a particular type of star.
In the study, published online June 3, 2014 in the journal Nutrition, Keck School of Medicine researchers analyzed the chemical composition of 34 popular beverages, finding that beverages and juices made with high fructose corn syrup (HFCS), such as Coca - Cola, Pepsi, Dr Pepper, Mountain Dew and Sprite, all contain 50 percent more fructose than glucose, a blend that calls into question claims that sugar and HFCS are essentially the same.
«If it were possible to grind up the entire planet Earth to dust in a huge mortar and pestle, we would get dust with on average a similar chemical composition as chondritic meteorites,» says Kramers.
«And it offers the real - time resolution required to map the changes in the particles» chemical composition and current densities, at a sub-particle scale, as the particles lithiate and delithiate.»
«We found that these clusters can perform very well as room - temperature nanoscale diodes whose electrical response we can tailor by changing their chemical composition,» says Venkataraman.
The special treatment alters the chemical composition of the complex sandwich structure — thereby altering its electronic properties, as confirmed by various methods including detailed electron microscope investigations.
The team plans to study the exact composition of this chemical attractant, as well as the mechanisms of its release and reception in the future.
«We're busy working on analyzing the infrared data from this special view of the Saturn system,» said Phil Nicholson, a visual and infrared mapping spectrometer team member from Cornell University, Ithaca, N.Y. «The infrared data should tell us more about the sizes of the particles which make up the D, E, F and G rings, and how these sizes vary with location in the rings, as well as providing clues as to their chemical composition.»
A Cologne working group involving Prof. Carsten Münker and Dr. Elis Hoffmann and their student Sebastian Viehmann (working with Prof. Michael Bau from the Jacobs University Bremen) have managed for the first time to determine the isotope composition of the rare trace elements Hafnium and Neodymium in 2.7 - billion - year - old seawater by using high purity chemical sediments from Temagami Banded Iron Formation (Canada) as an archive.
The Temagami Banded Iron Formation, which was formed 2.7 billion years ago during the Neoarchean period, can be used as an archive because the isotopic composition of many chemical elements such as Hafnium and Neodymium directly mirrors the composition of Neoarchean seawater.
The team discovered each animal emits an intense odor that broadcasts the chemical composition of what is known as their major histocompatibility complex, or MHC, genotype.
The chemical composition of the microalgae is not an intrinsically constant factor, but varies over a wide range in accordance with the different cultivation factors such as temperature, light (intensity, wavelength and photoperiod), pH of the medium, supply of CO2, concentration and type of nutrients, source and concentration of nitrogen, salinity and growth phase.
In particular, sensors that could analyze the chemical composition of the plumes, either remotely or by sampling the material as it whizzed through the vapor, could provide keen insights into the chemical processes taking place on or deep beneath Europa's icy surface.
His work in Australia began in 2009 and was originally intended to focus on the chemical composition of the stalagmites as a means of reconstructing past changes in the intensity of Australian summer monsoon rains.
Conventionally, fingerprint chromatography is adopted to authenticate and differentiate the species as it can provide comprehensive chemical composition of a sample.
The composition of this lava dome is different from the magma that caused the giant caldera to erupt — it shows the same chemical characteristics as the current post-caldera volcano on the nearby Satsuma Iwo - jima Island.
Overall, the chemical composition of NWA 7034 is strikingly similar to rocks recently analyzed by Mars rovers, and it closely matches the average composition of the Red Planet's crust as estimated by orbiting probes.
Its chemical composition is the same as that of quartz.
The 2D analogue material has the same chemical composition and active site as the 3D porous zeolite but its active site is exposed on a flat surface, which is easier to access with such tools.
A new technique that provides both chemical composition and molecular orientation information at subsecond timescales could reveal new information about what occurs on the molecular level as diseases such as Alzheimer's and multiple sclerosis progress.
Strausfeld and Wolff looked at both the neuroanatomy and chemical composition of mushroom bodies in numerous species belonging to two major groups of invertebrates: Ecdysozoa, which includes insects, crustaceans and other arthropods such as scorpions and horseshoe crabs; and Lophotrochozoa, which includes mollusks, flatworms and segmented worms.
A more generalized version of the technique, nuclear magnetic resonance (NMR), also offers enormous benefits, enabling scientists to characterize the chemical compositions of materials as well as the structures of proteins and other important biomolecules without having to penetrate the objects under study physically.
Birch showed how the stiffness of rocks changes under the extreme conditions of pressure and temperature deep within planets, as well as with chemical composition.
The team, which included other geochemists, palaeoecologists and geologists from UCL and the universities of Edinburgh, Leeds and Cambridge, as well as the Geological Survey of Namibia, analysed the chemical elemental composition of rock samples from the ancient seafloor in the Nama Group - a group of extremely well - preserved rocks in Namibia that are abundant with fossils of early Cloudina, Namacalathus and Namapoikia animals.
This is a technique that scientists have tested out on modern - day kangaroos, as well, and have discovered that the chemical composition of the teeth is a good proxy to judge humidity.
Measurements of surface chemical composition, either by direct sampling (as has been done on Earth, the moon, and Mars) or through spectroscopic observations, can be used to estimate elemental abundances and the degree of chemical differentiation that occurred as the planets condensed from the solar nebula.
They appear as endless salt - encrusted desert basins, and their chemical composition makes them so unusual that some geologists say these minerals couldn't exist in nature if the deposits weren't right before their eyes.
Different parent populations, such as the Milky Way disk or halo, dwarf satellite galaxies or globular clusters, are known to have radically different chemical compositions.
«This can help us determine mechanisms that influence species composition in planktonic communities exposed to red tides, and suggests that these chemical cues could alter large - scale ecosystem phenomena, such as the funneling of material and energy through marine food webs.»
DEIMOS breaks the visible wavelengths of objects into spectra, which the team used to reverse - engineer the ages of the globular clusters by comparing the chemical composition of the globular clusters with the chemical composition of the Universe as it changes with time.
We detect such currents in muscles, nerves, secretory glands, and electric organs of fish as well as in plant tissue -LRB-...) It seems likely that all these currents have a similar, if not the same basis, and that their strength and potency depends on the structural conditions and chemical composition of the cells making up each organ.»