The catalysts could promote the secondary gas-phase reactions by nitrogen and surface reactions on the nanocatalyst. The oxidation reactions were presumably enhanced, leading to different decomposition behaviors of AP under different pressure conditions. As shown in Table 8, the nano-sized Cu, Ni,...
The second term is a correction for the effect of orography. Ascending the orographic gradient, the surface pressure generally declines as the atmospheric column above becomes thinner. The effect on geopotential gradients at any height depends on the rate of this decline. If the surface pressure ...
Proton-exchange membrane fuel cells demand efficient electrode–electrolyte interfaces to catalyse the oxygen reduction reaction (ORR), the kinetics of which depends on the energetics of surface adsorption and on electrolyte environment. Here we show an
[30],[31],[32]. Bogomolov has devised a Fokker-Planck model based on hard-sphere collisions[21]. Mathiaud & Mieussens have introduced an Ellipsoidal Fokker-Planck model (ES-FP) where the diffusion coefficient incorporates non-equilibrium part of the pressure tensor as well[30]. Fei &...
Janeshek,. Reac- tion kinetics from self-heat data - correction for the. depletion of sample, Proceedings of the International Symposium on Runaway Reactions, Cambridge, Massachusetts (1989) 331-336. 11. H. Anderson and J. Mentel, Adiabatic decomposi- tion kinetics by non-linear optimization,...
In the full system, the velocity is not divergence free, but the pressure p in (31) can still be seen as Lagrange multiplier for the constraint (30). Analogously to (8), an entropy inequality holds for F0. For χ convex, we multiply equation (29) with χ′(F0) and integrate: d ...
the pressure step, which will inevitably limit the measurement to systems that have time constants slower than this process. In this closed system the gas velocity will rapidly fall to zero and only the buoyancy term may vary if the volume of the system is not large enough for the pressure ...
more research is needed in the area of combined treatments employing nonthermal methods particularly on microbial resuscitation following processing and inactivation of bacteria or pressure-stable enzymes in vegetable foods. Pasteurization can provide one of the hurdles for microbial control but is not enou...
the residence time is defined as the ratio between the reactor volume in the quasi-isothermal section and the gas flow rate (m3/s) under the conditions of temperature and pressure in the reactor. c the equivalence ratio was defined by considering the following stoichiometric equation: H2S + 1.5...
The motivation for this is that the time between when the gas becomes reactive and autoignition is very short. In the case with imposed pressure traces, the time between 1% fuel oxidized (in the end-gas) and OH maximum the pressure increase is approximately 10 bar. The other option would ...