The noble shift in open-circuit potential exhibited by microbially colonized stainless steel (ennoblement) was investigated by examining the relationship among surface colonization, manganese deposition, and open-circuit potential for stainless steel coupons exposed to batch cultures of the manganese-depositing bacterium Leptothrix discophora. Open-circuit potential shifted from -100 to +330 mV...

no doubt, damage and losses inflicted by callosobruchus maculatus to stored products in general and chickpea in particular can be significant. the objective of this work was to evaluate the effect of the verbascum sinuatum powder on c. maculatus oviposition behavior in chickpea under laboratory conditions (30 °c, 60% relative humidity). powder of mullein plant (v. sinuatum) caused reduction in ...

The reuse of filtering facepiece respirators (FFRs) after decontamination has been suggested as a strategy to conserve supplies during an influenza pandemic. The feasibility of decontaminating FFRs has been investigated under laboratory conditions; however, the need for decontamination of FFRs is not well characterized. In this study the potential for FFRs to act as fomites was examined using b...

The effect of an electroless Ni-Cu-P coating on the fatigue behavior of quenched and tempered CK45 steel has been investigated. The fatigue tests under rotating bending conditions have been conducted in three different conditions of uncoated, as-deposited and shot peened prior to the coating deposition. The results indicate that plating of the base steel leads to a fatigue life reduction. The d...

Induced osteogenesis of mesenchymal stem cells (MSCs) may provide an important tool for bone injuries treatment. Human umbilical cord and adipose tissue are routinely discarded as clinical waste and may be used as noncontroversial MSCs sources. It still remains to be verified which source of MSCs is the most suitable for bone regeneration. The aim of this research was to investigate the osteoge...

Perovskite Solar Cells In article number 2200263, David George Lidzey and co-workers fabricated SnOx electron-extraction layers via a reactive electron-beam evaporation process from metal source under partial pressure of oxygen. These are then used in standard (n-i-p) architecture perovskite solar cells achieve power conversion efficiencies up to 19.3%. The deposition is performed onto substrat...

The effects of temperature and chloride deposition on hydrogen absorption into steel were evaluated during wet/dry cyclic corrosion using a temperature-compensated monitoring system based the electrochemical permeation method. Hydrogen was detected through measurement currents wet periods under corrosion. enhancement mainly caused by changes in solution chemistry wetting drying periods, with de...

Gold nanobelts were synthesized by directional solidification of the Fe-Au eutectoid followed by selective phase dissolution. Cleaning from organic molecules was performed in alkaline solution by PbO(2) deposition/dissolution to avoid surface reconstruction. The electrochemical behaviour of the Au nanobelts was determined by structure-sensitive electrochemical reactions, and the findings confir...

Ozone/TEOS thermal chemical vapor deposition ~CVD! has been investigated for SiO2 deposition on Si, using a cold-wall research reactor equipped to determine the effects of precursor concentration, deposition temperature ~300–500 °C!, and pressure ~30–200 Torr! on deposition rates, etch rates, and step coverage in the regime of subatmospheric CVD ~SACVD!. Deposition rates first increase with sub...