The concept of a grid-based instrument for measuring micrometeoroid parameters

The article describes the design of a grid-based device for measuring the parameters of charged microparticles (micrometeoroids). The main attention is paid to the issues of calculating the errors in measuring the charge, mass and velocity of such microparticles. A 3D model of the device was developed and calculated ratios were carried out to calculate the arameters of charged microparticles.

Improved ionic diffusion and interfacial charge/mass transfer of ZIF-67 derived Ni-Co-LDH electrodes with bare ZIF-residual for enhanced supercapacitor performances

MOFs (metal-organic frameworks) are ideal precursors for constructing hierarchical structures utilized for energy storage, gas separation/capture, and waste adsorption. ZIF-67 as a widely used MOF can be converted to Ni-Co-LDH...

Possible ways of optimizing blasting operations using O-Pitblast software

Blasting is one method of mining solid rock masses. The operation parameters, i.e. burden, blast hole and row spacing, stemming length, subdrilling length or explosive charge mass per single delay and total explosive charge mass per series, must be determined. The determined parameters can be optimized taking into account both technical and economic performance, using a dedicated software with an optimization module. The article presents different ways of improving and optimizing blasting operation parameters using O-Pitblast software and the effects of these improvements on planned blasting operations.

CO2 electroreduction to fuels on mesoporous carbon-embedded copper nanoparticles

An electrocatalyst with Cu nanoparticles embedded in a mesoporous carbon was prepared by the soft-template route using a green process. Its particular structure boosts its performance for CO2RR regarding selectivity and charge/mass transfers.