Sentences with phrase «of isoprene»

Microbial cycling of isoprene, the most abundantly produced biological volatile organic compound on Earth — Terry J. McGenity — The ISME Journal

In polluted environments increased temperatures and larger temperature - sensitive emissions of isoprene cause enhanced ozone levels.

Researchers found that the volatility and oxidation state of isoprene SOA are sensitive to, and exhibit a nonlinear dependence on, NOx levels.

Not exact matches

The researchers made the printed batteries flexible and stretchable by incorporating a hyper - elastic polymer material made from isoprene, one of the main ingredients in rubber, and polystyrene, a resin - like component.

This observation helps reconcile the seemingly contradictory observations of the NOx effect on isoprene SOA volatility reported in previous literature studies.

To help address this challenge, a team of U.S. Department of Energy researchers conducted laboratory experiments in an environmental chamber to investigate the effects of NOx on the volatility and chemical composition of SOA generated by isoprene photooxidation.

On the other hand, β - pinene, myrcene and isoprene, produce much less ELVOC's, which are an important biogenic sources for the formation of particles in the atmosphere,» emphasizes Dr. Torsten Berndt of TROPOS, who was involved in all three publications.

Additional aerosol mass composed of organosulfate and organonitrate chemicals can then form via nitrogen oxide - initiated oxidation of VOCs from natural vegetation (e.g., isoprene) in the presence of highly acidic ultrafine particles.

[1] For example, it has been demonstrated that blends of 2 linear triblock polymers poly (isoprene)- block - poly (styrene)- poly (2 - vinylpiridine) leads to an ordered array of rectangular - shaped cylinders with 4-fold symmetry in bulk, which could be very interesting for surface nanopatterning if prepared in the form of thin films.

When isoprene is in the presence of human - made sulfate particles it transforms into atmospheric organic aerosol particles.

At Pacific Northwest National Laboratory, Dr. Alla Zelenyuk and her team took on a specific part of that haze: originated from isoprene.

Analyses of the ground and aircraft data performed by Setyan et al. (2012), Shilling et al. (2013), and Kleinman et al. (2016) showed that organic aerosol production increased when human - caused emissions from Sacramento mixed with air rich in isoprene, an organic compound wafting from many plants that originate in the area's foothills.

June 28, 2016 — Dogs could help protect type 1 diabetes patients against dangerous drops in blood sugar levels (hypoglycemia), according to researchers.They believe dogs can detect higher levels of a chemical called isoprene in the breath of diabetes patients... Read more

«Concerns about climate change and energy security are driving an aggressive expansion of bioenergy crop production and many of these plant species emit more isoprene than the traditional crops they are replacing,» the paper states.

But as you may know, I am talking about the rising leading edges of AOT plots which relate to early stage cloud formation (i.e. nucleation — presumably via DMS, isoprenes etc emitting by cyanobacterial blooming).

Effects of anthropogenic emissions on aerosol formation from isoprene and monoterpenes in the southeastern United States

• biological aerosol seeding of clouds (phytoplankton and forests releasing isoprenes, Lovelock, Makarieva / Gorshkov), • and the «biotic pump hypothesis» (Makarieva / Gorshkov) •... among others... In addition, AGW - theory advocates systematically downplay the number and contribution of damping / stabilizing (or «negative») feedbacks (both of heat and CO2) in the global climate system — most implicated directly or indirectly with the activities of life, as illustrated in point # 3.

Increased biomass can lead to increased emissions of biogases such as dimethyl sulfide and isoprene, which when oxidized in the atmospheric form sulphate and organic aerosols that can nucleate clouds, increasing cloud cover and planetary albedo — the CLAW Hypothesis.

Although biogenic NMVOC emissions increase with increasing temperature, all three studies concur that climate - driven changes in vegetation types unfavourable to isoprene emissions (notably the recession of tropical forests) would partly compensate for the effect of warming in terms of ozone generation.

(3) increasing the flux of biogenic aerosols (DMS, isoprenes etc) being put into the atmosphere and hence the global concentration of CCN (Cloud Condensation Nuclei).

Run at year 2030 (SSTs as in # 1), 4 year runs (+2 - month initialization), model's own distribution of given emission scaled uniformly: 2.1: +100 Tg / yr isoprene (scale existing source to add 100 Tg / yr).