Enormous benefit for humans and without harming the environment can be extracted from domestic waste, old car wheel casings, industrial wastes and even silt, that remain after cleaning sewage outflows. It transpires that all this can successfully be turned into light and heat when incinerated, under methodology, developed by scientists from Chernogolovka in the Moscow Region, staff from the Institute of Problems of Chemical Physics RAS. The scientists were aided by the International Science and Technology Centre and the Russian Fund for Fundamental Research. The research is headed by RAS Corresponding Member Georgi Manelis.
This technology has a rather complicated name – filtration combustion with superadiabatic warm-up. The essence of the development lies in the fact that all of the so-called pseudo-fuel is first transformed to gas in an airflow; then this gas is combusted. As a result we get the same light and heat for which to date it has been necessary to literally let natural gas, coal and oil go up in smoke, fuel reserves which are far from endless in supply.
Externally the main part of the installation is a vertical shaft furnace, filled with these waste products that have to be processed. From below the pipe is blasted with air. This is where the ash is poured in – the mineral residue that does not burn at all. From above, as necessary, new portions of what in a domestic sense you would not call fuel are added into the pipe; these include poor coal, for example, in which there is so little carbon that you cannot make then burn easily.
Andrew Vakhliaev | alfa
Conservationists are sounding the alarm: parrots much more threatened than assumed
15.09.2017 | Justus-Liebig-Universität Gießen
A new indicator for marine ecosystem changes: the diatom/dinoflagellate index
21.08.2017 | Leibniz-Institut für Ostseeforschung Warnemünde
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
A warming planet
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
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22.09.2017 | Physics and Astronomy