Sentences with phrase «particle analysis by»

Pratt and PNNL postdoctoral researcher Dr. Gourihar Kulkarni will study ice formation using an environmental chamber, as well as particle analysis by laser mass spectrometry (PALMS) to measure ice residue chemistry.

Not exact matches

But, as Bohm points out, such a position can not stand up to critical analysis, for the molecules studied by biologists in living organisms are constituted of electrons, protons and other such particles, from which it must follow that they too are capable of behaving in ways that can not be described in terms of mechanical concepts.

Analysis of seven particles captured by aerogel and foil reveals diverse characteristics not conforming to a single model.

«Most approaches to single - particle analysis have so far been based on trying to determine these particle orientations from the images; however, the best resolution achievable from these analyses is restricted by how precisely these orientations can be determined from noisy data.»

Now, analyses of data gathered in 2006 by two satellites — one carrying a down - gazing camera and the other a gamma ray detector — as well as a ground - based lightning detector in North Carolina, reveal that these flashes start out, as does most lightning, as a small channel of charged particles within the storm cloud (golden zigzag line, left; lightning - generated radio waves are depicted as concentric rings).

Prenni is gathering better measurements and conducting particle analyses that will help park managers assess this threat, not just at Theodore Roosevelt but also at other parks in the West surrounded by oil and gas development.

In the paper published this week, the magnetite particles in ALH84001 are analysed by geoscientists Ralph Harvey of Case Western Reserve University in Cleveland, Ohio, and Harry McSween of the University of Tennessee in Knoxville, working with John Bradley of MVA in Norcross, Georgia, a company which specialises in microscopic analysis.

The researchers knew that this analysis could be influenced by another well - known phenomenon, the production of particle jets.

«The successful implementation of the technique used in this analysis opens an exciting possibility for exploring details of the strong interaction between other abundantly produced particle species,» he said, noting that RHIC and the Large Hadron Collider (LHC) are ideally suited for these measurements, which are difficult to assess by other means.

In addition to sophisticated analysis routines, this requires detailed measurements of particle tracks and energy deposits produced in large detectors by the LHC's proton — proton collisions and, in particular, precise knowledge of the collision energy.

His research summary report outlined the research he had conducted and, as Lovell later described in his autobiography Astronomer by Chance, «by an analysis and argument that now seems tortuous» Lovell remained convinced that the echoes he was receiving on his radar equipment might be caused by high - energy cosmic ray particles.

ASTM E2834, Guide for Measurement of Particle Size Distribution of Nanomaterials in Suspension by Nanoparticle Tracking Analysis (NTA), and ASTM E2859, Guide for Size Measurement of Nanoparticles Using Atomic Force Microscopy, are both under the jurisdiction of Subcommittee E56.02 on Physical and Chemical Characterization.

The new method simplifies this challenge by incorporating novel hardware and performing two analyses at once: particle localization and spectroscopy.

Work by A.Z. and the development of the advanced single particle analysis methods (A.Z.) were supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences.

Bacterial Preferences for Specific Soil Particle Size Fractions Revealed by Community Analyses — Michael Hemkemeyer — Frontiers in Microbiology

An investment in this so - called «second laser revolution» promises to open up a range of applications, from machining to medicine to particle acceleration, according to the December report by the National Academies of Sciences, Engineering, and Medicine, which offers independent analysis to government agencies and policymakers.

A new analysis of data from the Planck space telescope has concluded that the tiny silicate and carbonate particles spewed into interstellar space by dying stars could account for as much as 100 percent of the signal detected by the BICEP2 telescope and announced to great fanfare this spring.

People who do this typically have by a year, two years, or so, sometimes longer: HDL cholesterol drops, triglycerides start to climb back up (even if they'd dropped substantially at the start), small LDL particles on lipoprotein analysis — increase.

The expert, Dr. James E. Hansen, and his colleagues conclude in a new analysis that the warming seen in recent decades has been caused mainly by other heat - trapping emissions — methane, chlorofluorocarbons, black particles of diesel and coal soot and compounds that create the ozone in smog — which are easier to control than carbon dioxide, with many of them already on the decline.

Using liquid and ice microphysics models reduces the biases in cloud optical thicknesses to ≲ 10 %, except in cases of mistaken phase identification; most of the remaining bias is caused by differences between actual cloud particle sizes and the values assumed in the analysis.

Experienced in particle size analyzer by the Malvern zetasizer, knowledge of metal analysis using ICP - MS.