Sentences with phrase «gas phase chemistry»

Because the technology utilizes vapor - gas phase chemistry, it is more effective than chemicals applied by wiping down surfaces, getting at bugs in cracks and crevices unreached by the wipe down.

Not exact matches

In contrast to the high - temperature, gas - phase synthesis used for conventional nanotubes, kinetic chemical control such as is employed in organic chemistry is used for the synthesis of the nanothreads.

A BGSU photochemical sciences research team has shown that a new and unusual reaction path in chemistry occurs not only in the gas phase, but also in solution.

Secondary organic aerosols are formed primarily through chemistry that occurs in the gas phase.

The dependence likely arises from gas - phase chemistry of organic peroxy radicals, which compete with NOx in reactions, and succeeding particle - phase reactions.

This successful first detection of cold gas - phase methanol in a protoplanetary disc means that the production of ice chemistry can now be explored in discs, paving the way to future studies of complex organic chemistry in planetary birthplaces.

Research & teaching: multiphase chemistry in the Earth system, climate and public health, i.e., chemical reactions, mass transport and phase transitions of gases, liquids and solids linking the atmosphere, biosphere and hydrosphere on molecular to global scales.

While other species detected in space are formed by gas - phase chemistry alone, or by a combination of both gas and solid - phase generation, methanol is a complex organic compound which is formed solely in the ice phase via surface reactions on dust grains.

The surface, and in particular the interaction of molecular radicals with the surface, plays a key role for both, entropy and selective dissipation, highlighting fundamental differences of surface - supported reactions compared to gas - phase or solution chemistry.

Jerome Fast has lead a team of PNNL scientists that have contributed a gas - phase chemistry mechanism, an sectional aerosol model, cloud chemistry, cloud - aerosol interactions, and radiative feedback processes into the chemistry version of Weather Research and Forecasting (WRF - chem) model.

Why It Matters: One of the most powerful diagnostic and analytical tools in chemistry and materials science, MAS NMR spectroscopy provides high spectral resolution and detailed structural information about a sample on an atomistic or molecular level and allows scientists to follow changes over time regardless of whether the sample is a solid or a liquid or a mixture of solid, liquid, and gas phases.

In the scientific community, Dr. Laskin is internationally known for her work on gas - phase ion chemistry and mass spectrometry of large, complex molecules.

This has been the mainstay of gas phase conversions of petrochemical feedstocks for decades - now it is beginning to demonstrate its worth in liquid phase synthetic chemistry.

Differences in how a model represents space and time scales, emission rates, meteorology, gas - phase chemistry, and other aerosol processes all affect model predictions.

Gas chemistry regards the simplest phase of matter.

To elucidate human induced changes of aerosol load and composition in the atmosphere, a coupled aerosol and gas - phase chemistry transport model of the troposphere and lower stratosphere has been used.

Topics that I work on or plan to work in the future include studies of: + missing aerosol species and sources, such as the primary oceanic aerosols and their importance on the remote marine atmosphere, the in - cloud and aerosol water aqueous formation of organic aerosols that can lead to brown carbon formation, the primary terrestrial biological particles, and the organic nitrogen + missing aerosol parameterizations, such as the effect of aerosol mixing on cloud condensation nuclei and aerosol absorption, the semi-volatility of primary organic aerosols, the importance of in - canopy processes on natural terrestrial aerosol and aerosol precursor sources, and the mineral dust iron solubility and bioavailability + the change of aerosol burden and its spatiotemporal distribution, especially with regard to its role and importance on gas - phase chemistry via photolysis rates changes and heterogeneous reactions in the atmosphere, as well as their effect on key gas - phase species like ozone + the physical and optical properties of aerosols, which affect aerosol transport, lifetime, and light scattering and absorption, with the latter being very sensitive to the vertical distribution of absorbing aerosols + aerosol - cloud interactions, which include cloud activation, the aerosol indirect effect and the impact of clouds on aerosol removal + changes on climate and feedbacks related with all these topics In order to understand the climate system as a whole, improve the aerosol representation in the GISS ModelE2 and contribute to future IPCC climate change assessments and CMIP activities, I am also interested in understanding the importance of natural and anthropogenic aerosol changes in the atmosphere on the terrestrial biosphere, the ocean and climate.