Here we present an autonomous implantable device for vasopressin monitoring and prevention of latephase hemorrhagic shock powered using a novel non-enzymatic fuel cell unit. The device consists of a biosensor, drug delivery device and fuel cell unit. The innovative stacked single-layer fuel cell (SLFC) design allows to achieve small packaging volume and reduces oxygen cross-over at the anode re...

Microbial fuel cell represents an emerging technology to attain electrical energy from wastewater. There are several alternative methods available for wastewater treatment; Microbial fuel cell is one of them, which generates green energy from wastewater for making a contribution to renewable sources of energy. This study states the performance of microbial fuel cell with different parameters i....

Despite intense research in past decades, the lack of high-performance catalysts for fuel cell reactions remains a challenge in realizing fuel cell technologies for transportation applications. Here we report a facile strategy for synthesizing hierarchical platinum-cobalt nanowires with high-index, platinum-rich facets and ordered intermetallic structure. These structural features enable unprec...

Background: Avian spermatozoa are characterized by high proportions of poly unsaturated fatty acid, associated with increased susceptibility to Reactive Oxygen Species and lipid peroxidation. Recent advances in poultry reproduction have focused on the potential of Reactive Oxygen Species as one of the prime mediators of infertility. Oxidative stress is the result of imbalance between the Reacti...

Introduction: The conversion and storage of energy with a high efficiency, especially a high specific energy, will be an important factor in future energy storage technologies. The relatively simple possibility to store hydrogen and oxygen with high specific energy combined with high energy conversion efficiency in fuel cells and electrolyser presents an opportunity for the use of polymer elect...

The high-energy-density (HED) fuels developed under U.S. Navy sponsorship as a replacement for conventional liquid fuels in its missile propulsion systems have the drawback of high soot propensity: this makes missiles visible and thus strategically unacceptable. Experimental evidence of heavy sooting from such potential fuels has been presented by Law[l]. Soot propensity is defined here as the ...

We have deposited a series of WC–Co coatings by the high velocity oxy fuel (HVOF) process, using three different powders, and different spray conditions. The powders are a nanocrystalline (Nanocarb), a near-nanostructured powder (Infralloy) containing a proprietary additive aimed at retarding grain growth, and multimodal (mixed micro and nano) powder (Nanomyte). HVOF spray conditions were stoic...

The current study focuses on comprehensive fuel spray modeling and its effects on chamber acoustics in combustion dynamics simulations. The fuel spray is modeled using an Eulerian-Lagrangian approach describing the atomizer internal flow, primary atomization, and secondary atomization processes. To anchor the fuel spray model, a series of experiments has been conducted on the fuel atomizer with...

When current is drawn from a fuel cell, it is critical that the reacted oxygen is replenished rapidly by the air supply system to avoid stack starvation and damage. We first explain that in a stand-alone fuel cell, there is lack of control authority in avoiding excessive oxygen starvation during high current demand. In the hybrid configuration introduced in this paper, a small auxiliary power s...

HVOF coatings generally have a high bonding strength and good compactness, which improve the wear, corrosion, high-temperature oxidation, fatigue properties of substrate. They are widely used in automobile, home appliance, petrochemical, aerospace, other fields. The flame flow characteristics particle in-flight behaviors during spray process an essential influence on coating microstructure and,...