The Laser Zentrum Hannover e.V. (LZH) and the Institut für Werkzeugforschung und Werkstoffe (IFW) in Remscheid have now developed a mobile, laser-based process…
Scientists have made exotic new materials by creating laser-induced micro-explosions in silicon, the common computer chip material.
The strong outflows suggest that the black holes in these ULXs must be much smaller than expected. Curiously, these objects appear to be “cousins” of SS 433,…
However, single-crystal devices are practically difficult to fabricate. For both fundamental studies and technological applications, high-throughput…
Human impact on Earth produces a unique kind of biosphere
Changes to life may be the greatest for the past half billion years
Earth may be entering a new…
Esters have been identified to act as a new and clean coupling partner for the carbon-carbon bond forming cross-coupling reaction to make useful compounds for…
That is the conclusion of a team of Vanderbilt chemists who have been exploring ways to get bacteria to produce biologically active chemicals that they…
It's been difficult to explain patterns of toxic mercury in some parts of the world, such as why there's so much of the toxin deposited into ecosystems from…
UC Santa Barbara geologist Jim Boles has found evidence of helium leakage from the Earth's mantle along a 30-mile stretch of the Newport-Inglewood Fault Zone…
Published in Molecular Psychiatry, the ENIGMA study is co-authored by University of Sydney scholars at the Brain and Mind Research Institute.
Atomic clocks measure time with unbelievable accuracy. The best atomic clocks are so precise that they would lose less than one second over a period of 10…
Device for machining with rotatory ultrasound-vibrations: Reduced tool wear, very fine surface roughness and only little feathering of workpieces prove the advantages of hybrid manufacturing processes such as ultrasound machining. A newly developed device for machining combined with rotatory ultrasound oscillations enables a low-wear and thus more efficient processing of high performance materials such as hard metal, ceramic and fiber-reinforced plastics, compared to conventional methods.
GNSS enables the determination of positions by the help of a carrier phase with an accuracy down to some centimeters. The GNSS receivers typically determine the carrier phase by help of a phase locked loop continuously. However, up to now GNSS receivers are tracking the carrier phase of each satellite and each frequency separately. This is a big drawback since the strong spectral and spatial correlation between carrier phases is not being exploited which makes phase tracking error-prone. Furthermore, this leads to a number of phase jumps especially with low-cost GNSS receivers. The new patented invention comprises a vector phase tracking method, which processes the carrier phases of all visible satellites on all available frequencies simultaneously, thus using the spectral and spatial correlation of the measurement. It enables a continuous, smooth tracking of carrier phases, even when the signal strength (C/NO) of individual satellites breaks down by 20 dB. Therefore the method is very suitable for the use of low-cost GNSS receivers/antennas in environments with multiple faults and ionospheric scintillations.
A major challenge of construction within existing contexts is that renovated as well as newly built supporting structures have to comply with similar requirements regarding statics and outer appearance. E.g. component connections have to comply with standards in the fields of fire protection, corrosion protection and protection of historical monuments. Steel elements pasted into wood provide a solution for these rquirements.
The nucleus is the control center of the cell. Well protected by a double membrane, the DNA, our genetic material, is located within the nucleus. But it is not…
Researchers from the German Leibniz Institute for Age Research in Jena and the Dutch Ageing Institute ERIBA in Groningen discovered a mechanism how mTORC1…
Feedback
