Integrated optics platforms offer the possibility to implement compact photonic devices for nonlinear optics applications. Modern nanofabrication facilities allow the fabrication of sub-micron-sized waveguide geometries that confine light to reach very high optical intensities. These intensities enable efficient nonlinear processes that are further enhanced by using materials with high nonlinea...

The combined diffusion coefficient method is widely used to treat the mixing and demixing of different plasma gases and vapours in thermal plasmas, such as welding arcs and plasma jets. It greatly simplifies the treatment of diffusion for many gas mixtures without sacrificing accuracy. Here, three subjects that are important in the implementation of the combined diffusion coefficient method are...

Non-stoichiometric silicon nitride SiN x , enriched with silicon, is a promising material for the non-volatile resistive memory development. The current studies devoted to investigation of optical properties synthesized in low-pressure reactor at 800 o C different ratios dichlorosilane (SiH 2 Cl ) ammonia (NH 3 ). It was found that films SiH /NH =1/1, 1/2 and 1/3, corresponding bandgap values a...

In this work, we investigate the inertia and stoichiometric effect on surface diffusion of adsorbates particles. The study is done by means of Monte-Carlo simulation in the framework of the lattice gas model. Only first neighboring repulsive pair interaction is considered. We concentrate on the behaviour of the tracer diffusion coefficient Dt(θ), as a function of surface coverage θ in the case ...

Different carbon sources, glycerol, sorbitol, acetate and lactate were added together with methanol in the induction phase of Pichia pastoris culture for angiostatin production in a 5-L fermentor. Mass balances were carried out for different processes, yield coefficients were discussed and stoichiometric coefficients were estimated to compare the efficiency of different carbon sources. Glycerol...

The oxidation properties of n-heptane have been investigated by conducting experiments in a laminar flow reactor at pressures 21 and 100 bar, near-stoichiometric ( ? = 0.9 $\varPhi =0.9$ ) fuel-lean conditions 0.1 =0.1$ ), temperatures 450–900 K. At bar stoichiometric conditions, negative temperature coefficient (NTC) region was detected around 600 increased pressure or oxygen concentration, th...

Nanocrystalline PbTe films are deposited on different substrates at room temperature through thermal evaporation. The films are stoichiometric single-phase polycrystalline with 200 texture. Electrical properties of the films are analyzed in the framework of a grain boundary channel conduction model. The index of refraction and extinction coefficient of PbTe films are extracted from infrared spe...

In this paper we propose a methodology to determine the structure of the pseudo-stoichiometric coefficient matrix K in a mass balance based model and to identify its coefficients from a set of available data. The first stage consists in estimating the number of reactions that must be taken into account to represent the main mass transfer within the bioreactor. This provides the dimension of K. ...