Abstract Absolute rate constants for the reaction OH+H2CO have been measured over the temperature range 228–362 K using the flash photolysis–resonance fluorescence technique. The results were independent of variations in [H2CO], total pressure [Ar] and flash intensity (i.e., initial [OH])....
A complete derivation, from first principles, of the reaction-rate formula for a generic process taking place in a heat bath of finite volume is given. It is shown that the formula involves no finite-volume correction. Through perturbative diagrammatic analysis of the resultant formula, the detail...
The impedance spectrum showed that the reaction resistance of the PTC cell increases from 120 Ω to 250 Ω at a temperature range from 20 °C to 80 °C, and a complete current-limiting effect can be obtained until the temperature reaches 100–130 °C. Kise et al. [69,70] mixed the ...
(such as sedentary state) could be chosen. However, under winter conditions, humans need to stay at low ambient temperatures for a long time. Considering heat balance in the human body, humans generally need to engage in certain metabolic rate activities at low ambient temperatures. Thus, when...
The presence of surface film (also called SEI) lowers the reaction rate of both Li+ insertion and de-intercalation20 and the structural/phase change of the electrode from a hexagonal phase (less stable, but active) to a cubic phase or spinel structure (less active) also reduces the charge ...
7). Orthoclase with a lower dissolution rate constant and lower activation energy of reaction7 may have a weaker temperature dependence during weathering. The changes in mineral types available for weathering with temperature support the hypothesis proposed by recent results of carbon cycle modeling1: ...
reaction resulting in a lowTg(Alston and Lauver, 1985). PMR-15 polyimide has to be subjected to a free-standing postcure in air at 316°C for at least 16h to achieve a sufficiently highglass transition temperature(>320°C).Tgincreased with the duration of thermal treatment of the nadimi...
Aluminum alloy AA7075 reinforced TiB 2 particulate composites were prepared by the in situ reaction of K 2 TiF 6 and KBF 4 to molten aluminum. The prepared aluminum matrix composites (AMCs) were characterized using X-ray diffraction and scanning electron microscopy (SEM). The sliding wear behav...
Quantitative reverse transcription-polymerase chain reaction was performed on equal amounts of total RNA per sample extracted from bacterial suspensions grown in co-culture with in vitro tomato seedlings. 16sRNA was used as reference for the relative expression of each gene. Bars represent standard ...
Force-reversible C-N bonds, resulting from the click chemistry reaction between triazolinedione (TAD) and indole derivatives, offer exciting opportunities for molecular-level engineering to design materials that respond to mechanical loads. Here, we displayed that TAD-indole adducts, acting as crosslink...