In order to estimate vegetation photosynthesis from remote sensing observations; some critical parameters need to be quantified. From all absorbed light; the plant needs to release any excess that is not used for photosynthesis; by non-photochemical quenching; by fluorescence emission and unregulated thermal dissipation. Non-photochemical quenching (NPQ) processes are controlled photoprotective...

This paper reports a CFD modeling study to investigate the hydrogen-air mixture combustion in a micro scale chamber. Nine species with nineteen reversible reactions were considered in the premixed combustion model. The effect of operational and geometrical conditions including; combustor size, wall conductivity, reactant flow rates and hydrogen feed splitting on combustion stabilit...

Applying a rapid modulation system for measurement of chlorophyll fluorescence yield (U . Schreiber. Photosynth. Res. 9 . 26 1 —272 (1986)) the induction kinetics upon onset of strong actinic illumination previously studied by Delosme (Biochim. Biophys. A cta 143, 108—128 (1967)) are reinvestigated. With increasing actinic intensity the fluorescence rise is changed from the typical O -I-P chara...

Thermal strengthening remains the primary method for enhancing practical strength of commodity glass products, however, process is limited in terms applicable thickness and coefficient thermal expansion. The reasons this limitation are achievable heat transfer when using conventional gas cooling, occurrence transient surface tension early stages rapid quenching. We revisit problem case thin bor...

Isoprene-emitting plants are better protected against thermal and oxidative stresses. Isoprene may strengthen membranes avoiding their denaturation and may quench reactive oxygen and nitrogen species, achieving a similar protective effect. The physiological role of isoprene in unstressed plants, up to now, is not understood. It is shown here, by monitoring the non-photochemical quenching (NPQ) ...

this paper reports a cfd modeling study to investigate the hydrogen-air mixture combustion in a micro scale chamber. nine species with nineteen reversible reactions were considered in the premixed combustion model. the effect of operational and geometrical conditions including; combustor size, wall conductivity, reactant flow rates and hydrogen feed splitting on combustion stability and outlet ...

We report on the microstructures and properties of Ti6Al4V alloys, which were achieved upon quenching in sea water medium with potential high cooling rate. The alloys quenched at 1000 1100 °C, respectively. Moreover, effect post-quenching annealing performed 900 °C was analyzed. As a result, alloy experienced surface thermal stress, due to rapid shock, exposure temperature annealing. developed ...

We consider a simple gravitational-heating mechanism for the long-term quenching of cooling flows and star formation in massive dark-matter haloes hosting elliptical galaxies and clusters. The virial shock heating in haloes > 10M⊙ provides natural quenching in 10M⊙ haloes (Birnboim et al. 2007). Analytic estimates and simple simulations argue that the long-term quenching in haloes > Mmin ∼ 7×10...

A sonoluminescing bubble has been modeled as a thermally conducting, partially ionized, two-component radiating plasma. The recent measurements of 100~s pulse widths by Gompf et al. are useful for constructing a consistent plasma thermal conduction model that refines our previous model. Normal thermal conduction in the gas and liquid, vapor pressure, and temperature-dependent surface tension ar...