illegal tradedependingonthe HCFC phase-out strategy and action plan of the Government of neighbouring South Africa; the wide availability and low price of HCFC-22, coupled with limited availability and high-global-warming-potential (GWP) of alternative refrigerants; the cost and effectiveness of retr...
Before alternative energy becomes main-stream there are a few crucial obstacles that it must overcome: First there must be increased understanding of how alternative energies work and why they are beneficial; secondly the availability components for these systems must increase; and lastly the pay-off...
Integration with earth observations and dissemination Discussion Methods Data availability References Acknowledgements Author information Ethics declarations Peer review Additional information Supplementary information Source data Rights and permissions About this article This article is cited by AdvertisementNature...
Because the world is finite, the greater use of resources by humans leads to lesser availability of resources by other species. There is evidence that the Sixth Mass Extinction of species started back in the days of hunter-gatherers, as their ability to use of fire to burn biomass and abilit...
This study aims to achieve a balance of daylight availability in the work-plane environments of a fully glazed facade integrated with a light shelf system using an optimization procedure that can assist architects with assessing the daylighting performance of numerous design alternatives, and build-up...
availability for humanconsumption iscomplex:49 the aquaculture industry has become more efficient in its use of fishmeal (for example, the use of plant-based feed to grow fish or a greater use of fish waste from industrial fish-processing factories: about one quarter of all fishmeal and fish ...
Therefore, the design of an effective catalyst with high availability and low cost is essential to the widespread use of fuel cells. The design of catalysts for fuel cells is very challenging, and, despite the large number of studies published each year on this topic, to date, no material ...
As the use of solar technology expands, the rollout of solar-powered water pumps is expected to significantly enhance the availability of safe drinking water around the world. Groundwater – the water stored in between rocks underground – contributes almost 99 percent of the unfrozen fresh water...
safety, and environmental friendliness. Viewed from this perspective, multivalent metal (Zn, Mg, Ca, etc.) batteries (MMBs), based on metallic anodes coupled with cation-intercalation cathodes, are especially attractive because of their resource availability and promising multielectron redox capacity3,...
Fabric-based batteries can effectively accommodate the complex deformations induced by body motion and are easy to integrate into the ordinary cloth. To construct Li-S fabric batteries, we firstly fabricate metal-coated CF for use as current collectors. CFs are known to be lightweight and flexible...