Young stars ejecting plasma could give us clues into the Sun’s past Kyoto, Japan — Down here on Earth we don’t usually notice, but the Sun is frequently ejecting huge masses of plasma into space. These are called coronal mass ejections (CMEs). They often occur together with sudden brightenings called flares, and sometimes extend far enough to disturb Earth’s magnetosphere, generating space weather phenomena including auroras or geomagnetic storms, and even damaging power grids on occasion. Scientists believe that when…
A major limitation in the performance of solar cells happens within the photovoltaic material itself: When photons strike the molecules of a solar cell, they…
Are the mysteries of quantum physics and consciousness related?
The experiment, carried out in the laboratory of Professor Nicolas Gisin, constitutes a first, and simply pulverises the previous record of 6 kilometres…
At Aalen University, a novel composite material and a production process thereof was developed which makes the structural and material separation of current collector and cathode material unnecessary. The cathode material can be manufactured and formed in a continuous single stage electroplating process without the need to add binding material and electrically conductive particles. The proportion of active material in the cathode can thus be increased. Moreover, the mechanical stability and the efficiency of Li-Ion cells and Li-Sulfur cells improve.
How a system behaves is determined by its interaction properties. An important concept in condensed matter physics for describing the energy distribution of…
Astronomers looked at more than 22,000 galaxies and found that while smaller galaxies were very efficient at creating stars from gas, the most massive galaxies…
Basically, the idea is to control a variety of vehicle functions on a uniform, centralized computer platform instead of providing every system with its own…
Colias – named after a genus of butterfly – is an open-platform system that can be used to investigate collective behaviours and be applied to swarm…
The movie shows IRIS imagery focused in on material at around 60,000 Kelvin (107,500 F), which highlights a low level of the sun's atmosphere, called the…
The black hole is five times the mass of the one at the center of our Milky Way galaxy. It is inside one of the densest galaxies known to date — the M60-UCD1…
Computationally intensive research in Sweden will soon get a boost from the fastest academic supercomputer in the Nordic countries, to be installed in October…
If an accelerated ion of high energy impacts on the nucleus of a heavy element, it makes the nucleus vibrate in a very special manner: all of its neutrons…
The presented technology is a newly developed sucrose supported synthesis of transition metal doped zinc oxide nanoparticles, which can be used as active material for the fabrication of high capacity anodes for lithium-ion batteries. The general formula of these materials is TMxZn(1-x)O (0.02 ≤ x ≤ 0.14), with the transition metal TM being, for instance, Fe or Co. The obtained nanoparticles show a homogenous particle size distribution between 20-30 nm. Anodes made of such material exhibit specific capacities exceeding 900 mAh/g,an enhanced cycling stability, as well as an improved high rate capability, particularly after applying a carbonaceous coating. Extended laboratory tests have already demonstrated the advantages of the invented material for use in lithium-ion battery anodes. Further improvement is currently under development at the MEET battery research center. PROvendis offers licenses for this invention to interested companies on behalf of the University of Muenster, Germany.
Researchers at the Karlsruhe Institute of Technology (KIT) have developed a novel, simple and potentially cost-saving production process for macro-porous ceramics. The process is based on the use of the capillary effect in a three phase suspension of nano- to micro-sized solid particulates. In this manner, it is possible to fabricate ceramics and polymer foams with macro-pores of diameter 50 nm or greater and narrow pore size distribution.
The invention describes a charge equalizer which connects a strong with a weak cell directly via a multiplexed DC-bus and a DC/DC-converter. Due to the direct connection the energy dissipation is much lower compared to systems where the energy is only transferred from one neighbour to the next.
The direct connection only requires low voltage components which simplifies the circuit design, reduces its costs and increases the efficiency. By additional implementation of an energy buffer, the technical complexity of switching cells with differing voltage levels can be reduced and hence the design of the multiplexed DC bus can be simplified.
A team of researchers at Boston University and Stanford University School of Medicine has developed a new model to study the motion patterns of bacteria in…
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