Search results for "Autocatalytic reaction"
showing 6 items of 6 documents
ChemInform Abstract: Selecting Speed-Dependent Pathways for a Programmable Nanoscale Texture by Wet Interfaces
2013
The realization of well-defined and ordered structures on the nanoscale is a main issue in nanoscience and nanotechnology, biotechnology and other related fields like plastic or organic electronics. Among the bottom-up approaches, to date, self-assembly (equilibrium aggregates) received a major attention. In spite of this, far from equilibrium conditions allow for the generation of a wider landscape of organized systems depending on the set of control parameters employed. Under an adaptation vision of the structures, here we report some case studies showing how it is possible to programme and control the nanoscale features of ordered super- or supra-aggregates at wet interfaces by modulatin…
Selecting speed-dependent pathways for a programmable nanoscale texture by wet interfaces
2012
The realization of well-defined and ordered structures on the nanoscale is a main issue in nanoscience and nanotechnology, biotechnology and other related fields like plastic or organic electronics. Among the bottom-up approaches, to date, self-assembly (equilibrium aggregates) received a major attention. In spite of this, far from equilibrium conditions allow for the generation of a wider landscape of organized systems depending on the set of control parameters employed. Under an adaptation vision of the structures, here we report some case studies showing how it is possible to programme and control the nanoscale features of ordered super- or supra-aggregates at wet interfaces by modulatin…
Unraveling the nature of universal dynamics in $O(N)$ theories
2020
Many-body quantum systems far from equilibrium can exhibit universal scaling dynamics which defy standard classification schemes. Here, we disentangle the dominant excitations in the universal dynamics of highly-occupied $N$-component scalar systems using unequal-time correlators. While previous equal-time studies have conjectured the infrared properties to be universal for all $N$, we clearly identify for the first time two fundamentally different phenomena relevant at different $N$. We find all $N\geq3$ to be indeed dominated by the same Lorentzian ``large-$N$'' peak, whereas $N=1$ is characterized instead by a non-Lorentzian peak with different properties, and for $N=2$ we see a mixture …
Probing spectral properties of the QGP with real-time lattice simulations
2018
We present a new method to obtain spectral properties of a non-Abelian gauge theory in the region where occupation numbers are high. The method to measure the (single-particle) spectral function is based on linear response theory and classical-statistical lattice simulations. Although we apply it to a system far from equilibrium in a self-similar regime, the extracted spectral function can be understood within the hard thermal loop (HTL) formalism and can thus be connected to thermal equilibrium at high temperatures. This allows us to obtain quantities like the lifetime of quasiparticles that are beyond the leading order and difficult to compute within HTL. The approach has the potential to…
Dissipative Solitons: present understanding, applications and new developments
2009
Dissipative solitons form a new paradigm for the investigation of phenomena involving stable structures in nonlinear systems far from equilibrium. Basic principles can be applied to a wide range of phenomena in science. Recent results involving solitons and soliton complexes of the complex cubic-quintic Ginzburg–Landau equation are presented.
Über die autoxydation ungesättigter verbindungen. I. Mitt. Die spontane autoxydation des linolsäuremethylesters
1955
Die Autoxydation des reinen Linolsauremethylesters wird untersucht. Es wird gezeigt, das die Reaktion einen ausgesprochen autokatalytischen Charakter aufweist. Die Kinetik ergibt, das die Autoxydationsgeschwindigkeit proportional mit der Konzentration des entstehenden Peroxyds ansteigt. Die Geschwindigkeitsgleichung wird angegeben. Die Bruttoaktivierungsenergie der autokatalysierten Reaktion wird zu 18 kcal/Mol ermittelt. Es wird eine Apparatur zur gasvolumetrischen Verfolgung der Autoxydation beschrieben. The autoxidation of pure methyl linoleate has been investigated and is shown to have the characteristics of an autocatalytical reaction. The kinetics reveal that the rate of autoxidation …