It is anticipated that more than 75 Mb/s per subscriber is required for the convergence
service such as triple-play service (TPS). Among several types of high-speed access network …

Bioleaching of spent lithium ion secondary batteries, containing LiCoO 2 , was attempted in
this investigation. The present study was carried out using chemolithotrophic and acidophilic …

Bioleaching of metals from hazardous spent hydro-processing catalysts was attempted in the
second stage after growing the bacteria with sulfur in the first stage. The first stage involved …

Bioleaching process was attempted by using chemo-lithotrophic sulfur oxidizing bacteria to
recover valuable metals from vanadium-rich spent refinery catalysts. Prior to the bioleaching …

In order to recover valuable metals and regenerate the etching solution from the spent nitric
etching solutions of printed circuit board (PCB), solvent extraction, stripping, electrowinning, …

Solvent extraction and stripping experiments have been performed to separate indium from
gallium in sulfuric acid solutions. In the extraction process, the separation factor between …

Background Many countries have implemented nonpharmaceutical interventions (NPIs) to
slow the spread of coronavirus disease 2019 (COVID-19). We aimed to determine whether …

The present review describes the historical development and mechanisms of bioleaching.
Recent development has shown commercial application of the process and, concurrently, …

OBJECTIVE: To evaluate the clinical manifestations and outcomes of neonates born to
women who had Coronavirus Disease 2019 (COVID-19) during pregnancy. MATERIALS AND …

Silver–copper composite powders were prepared by electroless plating method in aqueous
system at room temperature. The dense and uniform silver coating layer was obtained by …