Menopausal Mother Nature

News about Climate Change and our Planet

Efficiency

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Promising computer simulations for stellarator plasmas

(Max-Planck-Institut für Plasmaphysik (IPP)) The turbulence code GENE (Gyrokinetic Electromagnetic Numerical Experiment), developed at Max Planck Institute for Plasma Physics (IPP) at Garching, Germany, has proven to be very useful for the theoretical description of turbulence in the plasma of tokamak-type fusion devices. Extended for the more complex geometry of stellarator-type devices, computer simulations with GENE now indicate a new method to reduce plasma turbulence in stellarator plasmas. This could significantly increase the efficiency of a future fusion power plant.

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Engineered bacteria churn out cancer biomarkers

Pity the glycan. A lab has created these very tools by commandeering simple, single-celled microorganisms – namely E. coli bacteria – and engineering them to explore the complex process of glycosylation and the functional role that protein-linked glycans play in health and disease.

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Effective pathway to convert CO2 into ethylene

The scientists developed nanoscale copper wires with specially shaped surfaces to catalyze a chemical reaction that reduces greenhouse gas emissions while generating ethylene — a valuable chemical simultaneously.

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Effective pathway to convert CO2 into ethylene

The scientists developed nanoscale copper wires with specially shaped surfaces to catalyze a chemical reaction that reduces greenhouse gas emissions while generating ethylene — a valuable chemical simultaneously.

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Effective pathway to convert CO2 into ethylene

The scientists developed nanoscale copper wires with specially shaped surfaces to catalyze a chemical reaction that reduces greenhouse gas emissions while generating ethylene — a valuable chemical simultaneously.

The persistence of plastic

The amount of synthetic microfiber we shed into our waterways has been of great concern over the last few years, and for good reason: Every laundry cycle releases in its wastewater tens of thousands of tiny, near-invisible plastic fibers whose persistence and accumulation can affect aquatic habitats and food systems, and ultimately our own bodies in ways we have yet to discover.

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Theoretically, two layers are better than one for solar-cell efficiency

Solar cells have come a long way, but inexpensive, thin film solar cells are still far behind more expensive, crystalline solar cells in efficiency. Now, a team of researchers suggests that using two thin films of different materials may be the way to go to create affordable, thin film cells with about 34% efficiency.

The future of biofuels in the dark

(University of California – Riverside) Algae could compete with petroleum as the fuel of the future if only the process of growing it was more efficient. Thanks to a fellowship from the Link Foundation, it soon could be. Elizabeth Hann, a doctoral student in plant biology at UC Riverside, is using the two-year, $60,000 fellowship to test whether she can grow algae for biofuels completely in the dark using solar-generated electricity.

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Gene-edited livestock ‘surrogate sires’ successfully made fertile

For the first time, scientists have created pigs, goats and cattle that can serve as viable ‘surrogate sires,’ male animals that produce sperm carrying only the genetic traits of donor animals. The advance could speed the spread of desirable characteristics in livestock and improve food production for a growing global population.

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Anti-bacterial graphene face masks

Researchers have successfully produced laser-induced graphene masks with an anti-bacterial efficiency of 80 percent, which can be enhanced to almost 100 percent within 10 minutes under sunlight. Initial tests also showed very promising results in the deactivation of two species of coronaviruses. The graphene masks are easily produced at low cost, and can help to resolve the problems of sourcing raw materials and disposing of non-biodegradable masks.