In principal all known conventional satellite navigation systems like GPS, Galileo, GLONASS, QZSS and BeiDou are enabling the determination of the position with accuracy on the centimeter-level by help of the carrier phase. However, the carrier signals, upon which the navigation signals are modulated, are typically impaired by various error sources, like ionospheric errors, tropospheric errors, instrumental errors and/or other error sources, leading to a defective determination of the position. The invention enables a precise and reliable relative positioning (relative kinematic positioning – RTK) with centimeter-level accuracy in urban environments as well as a precise attitude determination (heading estimation with 0.25°/m accuracy) with low-cost sensors. Wit the new method the above mentioned errors can be
eliminated reliably.

The invention concerns hybrid carbon fibre composite parts, whose surfaces are trued up by foils, additional surface processes are obsolete.

Rutgers engineers have developed a breakthrough device that can significantly reduce the cost of sophisticated lab tests for medical disorders and diseases,…

A compact ‘on-silicon-chip’ laser has been developed by researchers at Agency for Science, Technology and Research (A*STAR) in Singapore that boasts both…

Siemens is paving the way for the airport wireless networks of the future: with its Ruggedcom WIN devices, Siemens is one of the first suppliers to offer…

An international team of researchers, including the MESA+ Institute for Nanotechnology at the University of Twente in the Netherlands and the U.S. Department…

The next generation of mobile telephony called “5G” will make one thing possible: Internet is always accessible. In 2020, dead spots will be a problem of the…

But now, a research assistant professor Norio Narita of the Astrobiology Center of National Institutes of Natural Sciences (NINS), which was founded in April…

Mathematicians investigating one of science's great questions — how to unite the physics of the very big with that of the very small — have discovered that…

An international team of astronomers [1] using the Atacama Large Millimeter/submillimeter Array (ALMA) has discovered an unexpected population of compact…

CF flanges are well-established components for building ultra-high-vacuum environments. There are several geometries of the tubes that follow the ISO/TS 3669-2 standard, so that the costumer can combine products from different companies.
Nevertheless, a rather tricky task remains: For sealing the contact points between two different CF flanges, the technician has to mount a thin gasket between the two outer ends of the flanges before tightening the bolts. The gasket is typically made of high purity copper. When tightening the bolts, the extruded metal leads to a leak-tight seal (see Figure 1). Mounting and positioning of the copper seal still remains manual work – the technician has to fix the ring in the right position until the bolts hold the two flanges in place. Even if the technician is well trained, the gasket is likely to move and drop out when handling heavy components (pumps, evaporation devices, sections of the vacuum system, etc.). This is a waste of time and money – the damaged copper gasket can’t be reused.
Our new positioning device eliminates the need for this tedious and rather complicated positioning of the sealing ring by hand.

Space is cold, dark, and lonely. Deadly, too, if any one of a million things goes wrong on your spaceship. It's certainly no place for a computer chip to fail,…

For the experiment, the scientists shot at a 300-nanometer-thick foil of curium with accelerated calcium nuclei. In the collisions studied, the atomic nuclei…

A novel divergent nozzle design, which provides for a homogeneous flow profile even at long distances from the nozzle exit, was developed at the University of Stuttgart. The flow profile is optimized by a central body, shaped and placed in the flow channel in such a manner as to achieve a uniform flow and temperature distribution at the target object. Based on these characteristics, the invention is particularly suited to be used as a long range nozzle for large penetration distances in drying and ventilation applications.

The basic idea of a quantum computer is to replace the ones and zeros used in today’s bits with quantum states, or qubits. Qubits are units of information that…

The electronic properties of solid state materials used in today´s electronic devices are governed by the properties of the electrons in their basic…