Copper-Reductant Composite for Long-Life Electrical Contact

Directed evolution of copper nitrite reductase to a chromogenic reductant.

Directed evolution methods were developed for Cu-containing nitrite reductase (NiR) from Alcaligenes faecalis S-6. The PCR cloning strategy allows for the efficient production of libraries of 100 000 clones by a modification of a megaprimer-based whole-plasmid synthesis reaction. The high-throughput screen includes colony lift onto a nylon membrane and subsequent lysis of NiR-expressing colonie...

Applying Frequency Response method for contact Rails Fault Diagnosing in Ungrounded Electrical Railway System

Abstract General faults in regular electrical railways system could be detect by implementing the specific protection functions such as ground fault or sensitive earth fault. Otherwise, in ungrounded electrical railway systems which using both feeding and return contact rail at the same time, fault detection cannot done with above-mentioned function. Due to recent growth in electrical railway ...

Investigation Necessary Competencies for Life Long Learning in Medical Students

Introduction: Lifelong learning is a process in which individuals develop their knowledge, skills, and interest through learning opportunities in their life. This paper aimed to determine the required competencies for training medical students to acquire lifelong learning. Methods: In this qualitative study, purposeful sampling method and open-ended semi-structured interview were employed for ...

Modeling Transport Phenomena in Selective Catalytic Reductant Catalytic Converter with NH3 as Reductant for NO Degradation

In the current study, reduction of nitrogen oxide from exhaust gas in the presence of NH3 as reductant on selective catalytic reductant (SCR) impregnated catalytic converter was simulated using Comsol© software. Mass transfer (one-dimensional) and heat transfer (three-dimensional) governing equations were taken into account to model the unsteady state behavior of the catalytic converter. Modeli...

Effects of a carbon nanotube layer on electrical contact resistance between copper substrates