Abstract Emission of dust up to a few microns in size by impacts sand grains during saltation is thought be one source within the Martian atmosphere. To study this fraction, we carried out laboratory impact experiments. Small numbers particles about 200 μ m diameter impacted simulated soil (bimodal Mars Global Simulant). Impacts occurred at angles ∼18° vacuum with an speed ∼1 s −1 . Ejected was...

Accurate predictions of rock permeability is critical for resource exploration and environmental management. To improve on existing approaches to prediction, this study employed a stochastic pore-scale simulation approach. The petrophysical properties needed the implementation approach are porosity pore size distribution (PSD) samples which can be obtained easily from mercury injection capillar...

Viscoelastic granular materials are present in several disciplines. One example is asphalt mixture employed road construction. In the last three decades, discrete element modeling has been positioned as a valid tool for analysis of this multiphase material at grain-scale. All despite simplification shape particles used these studies. work, it proposed simplified procedure generation viscoelasti...

This paper investigates the production of a micronized muscovite to target product size d50~15 µm with minimum energy consumption suit requirements paint industry by dry grinding process in laboratory-scale vertical stirred ball mill. A series batch tests were conducted without and two commonly used industrial liquid aids, ethylene glycol (EG, C2H6O2) triethanolamine (TEA, C6H15NO3). The result...

Several dry processing techniques are assessed to elaborate metallic nanocomposite powders dedicated powder-bed-based (PBB) additive manufacturing as laser-powder bed fusion (L-PBF) and Binder Jetting (BJ). Electrostatic assembly of nanosized silicon carbide (35 nm) particles at the surface gas atomized aluminium (15-53 ?m) is performed using mixers covering a range mixing energy from rotative ...

Abstract. The role of mineral dust aerosol in the global radiative energy budget is often quantified by direct effect (DRE). DRE strongly depends on optical depth (DAOD), therefore, efficiency (DREE = / DAOD) widely compared across different studies to eliminate differences due various loads. Nevertheless, DREE still influenced uncertainties associated with particle size distribution (PSD) and ...

Lime treatment is a widely applied technique in improving the workability and geotechnical properties of soil. The water retention property microstructure are highly related to hydro-mechanical behaviour unsaturated lime-treated In this study, evolution pore size distribution (PSD) along curves (during drying) were studied for soil, with emphasis put on curing time salinity effects. Two soil po...

The appearance and disappearance of dendritic spines, accompanied by synapse formation and elimination may underlie the experience-dependent reorganization of cortical circuits. The exact temporal relationship between spine and synapse formation in vivo remains unclear, as does the extent to which synapse formation enhances the stability of newly formed spines and whether transient spines produ...

Mechanisms of ion channel clustering by cytoplasmic membrane-associated guanylate kinases such as postsynaptic density 95 (PSD-95) and synapse-associated protein 97 (SAP97) are poorly understood. Here, we investigated the interaction of PSD-95 and SAP97 with voltage-gated or Kv K(+) channels. Using Kv channels with different surface expression properties, we found that clustering by PSD-95 depe...