Slurry acidification is effective for reducing gaseous emissions during slurry storage. However, an alternative to sulfuric acid traditionally used needed. This study investigated the efficiency of bio-acidification treatment by adding different types and amounts fermentable substrates initiate sustain fermentation process. The carbon pools in were quantified understand mechanisms involved bio-...

Molybdenum disulfide is a crystalline material which attracts considerable attention due to explicit two-dimensional character of its electronic properties. To obtain MoS 2 films thermally evaporated molybdenum and gaseous H S were used as precursors in this work. As result chemical reaction these consisting flake-like nanometer thickness assembled from parallel atomic layers with predominantly...

A decrease in methanogenesis is expected to improve ruminant performance by allocating rumen metabolic hydrogen ([2H]) to more energy-rendering fermentation pathways for the animal. However, decreases in methane (CH4) emissions of up to 30% are not always linked with greater performance. Therefore, the aim of this study was to understand the fate of [2H] when CH4 production in the rumen is inhi...

Herein we demonstrate the sensitive nature of human blood-brain barrier (BBB) endothelial cells to sodium azide and its gaseous product. Sodium azide is known to be acutely cytotoxic at low millimolar concentrations, hence its use as a biological preservative (e.g., in antibodies). Loss of barrier integrity was noticed in experiments using Electric Cell-substrate Impedance Sensing (ECIS) biosen...

The chemistry of the intermediate layer that develops at the interface between diamond and a non-diamond substrate during diamond chemical vapor deposition is analyzed using a thermodynamic quasi-equilibrium model. Substrates of Si, Mo, W, Ti, Ta, Fe and Ni are examined, and the physical parameters such as substrate temperature, reactor pressure, and CH rH ratio in the gas phase required for 4 ...

The evolutionary pressures that shaped the specificity and catalytic efficiency of enzymes can only be speculated. While directed evolution experiments show that new functions can be acquired under positive selection with few mutations, the role of negative selection in eliminating undesired activities and achieving high specificity remains unclear. Here we examine intermediates along the 'line...

A new microfabricated physical sensor for elemental gaseous mercury (Hg) determinations has been developed and experimentally tested by the Authors. The sensor is based on the technique of resistivity variation of thin gold film. The gold film surface and the sensor behaviour on different substrates have been investigated. The sensor design has been performed in observation of the minimum detec...

The Silicon on Dust Substrate (SDS) is a gas-to-wafer process that produces multicrystalline silicon ribbons directly from gaseous feedstock (silane), avoiding the standard industry steps of polysilicon deposition, crystal growth, and wafering. SDS technique consists three main steps: (i) micrometric-sized powder production by grinding chunks; (ii) chemical vapor deposition (CVD) over this subs...