Atmospheric models generally assume that aerosol particles are in equilibrium with the surrounding gas phase. However, recent observations that secondary organic aerosols can exist in a glassy state have highlighted the need to more fully understand the kinetic limitations that may control water partitioning in ambient particles. Here, we explore the influence of slow water diffusion in the con...

A green and convenient method for the synthesis of 14-aryl-14H-dibenzo[a,i]xanthene-8,13-diones and spiro[dibenzo[a,i]-xanthene-14,3'-indoline]-2',8,13-triones in the presence of a catalytic amount of cellulose sulfuric acid (CSA) as an efficient biopolymer-based catalyst under solvent-free conditions at 100 °C is described. The condensation reactions of β-naphtol, 2-hydroxynaphthalene-1,4-dion...

Sodium acetate catalyzed the multi-component reaction of acetophenone, aromatic aldehydes, and acetoacetanilide in the water-ethanol mixture (1:1) at ambient temperature via Claisen-Schmidt condensation results in the formation of highly substituted cyclohexenones in 89–98% yields. The developed efficient catalytic approach to the substituted cyclohexenones – the promising ...

An atom-efficient, eco-friendly, solvent-free, high yielding, multicomponent green strategy to synthesize triazolo[1,2-a]indazole-triones derivatives by the one-pot condensation of aldehyde, dimedone, and phenyl urazole under microwave Irradiationis presented. Reactions catalyzed by A novel nanomagnetic organic-inorganic hybrid catalyst (Fe@Si-Gu-Prs) was prepared by the chemical anchoring of P...

A Monte Carlo method was developed to simulate multicomponent aerosol dynamics, specifically with simultaneous coagulation and fast condensation where the sectional method suffers from numerical diffusion. This method captures both composition and size distributions of the aerosols. In other words, the composition distribution can be obtained as a function of particle size. In this method, part...

A size-segregated aerosol dynamics model UHMA (University of Helsinki Multicompo-nent Aerosol model) was developed for studies of multicomponent tropospheric aerosol particles. The model includes major aerosol microphysical processes in the atmosphere with a focus on new particle formation and growth; thus it incorporates particle 5 coagulation and multicomponent condensation, applying a revise...

We investigate single-particle excitation properties in the normal state of a two-band superconductor or superfluid throughout Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein-condensation (BEC) crossover, within many-body T-matrix approximation for multi-channel pairing fluctuations. address density states and spectral functions consisting two contributions associated with waekly interacting d...

Phosphonodepsipeptides are phosphorus analogues of depsipeptides and phosphonate-linked naturally occurring peptides. They more stable than phosphonopeptides have been widely applied as enzyme inhibitors, haptens for the production antibodies, biological agents, prodrugs. The synthetic strategies towards phosphonodepsipeptides reviewed, including phosphonylation hydroxy esters with phosphonochl...