Those who want to explore the microcosm need exact control over laser light. Only with its help is it possible to explore electron motion and to influence…

A team of authors from MIPT, Kansas State University, and the U.S. Naval Research Laboratory have demonstrated that it is possible to fully absorb…

Agronostics Aachen will be an innovative agricultural chemistry start-up operating in the growth market of plant defense priming. Primed plants show enhanced resistance to disease and pests, and increased tolerance to abiotic stress. Taking into account that these threats still destroy ~40% of possible crop yield, defense priming provides a unique opportunity to secure best possible yield.

The efficiency of solar cells made of CZ silicon decreases by more than 1% in absolute figures under sunlight within a few hours (light induced degradation – LID). At the University of Konstanz a method was developed that makes it possible to stabilize the efficiency of the solar cell at nearly its output level. During production the solar cells are regenerated by either illumination at temperatures of between 100 and 230 degrees or applying voltage. The method can be easily integrated in the conventional manufacturing process and allows for an increase in efficiency by up to 5% rel.

Scientists at the University of Konstanz have developed a measuring device for non-permanent contacting of busbarless solar cells that allows for precise and direct characterization of electrical properties. As each contact finger can be contacted repeatedly over reversibly releasable connections the device allows for accurate measurement of I-V characteristics without requiring subsequent adjustment with correction factors.

Standard cosmology — that is, the Big Bang Theory with its early period of exponential growth known as inflation — is the prevailing scientific model for our…

As we continue to shrink electronic components, top-down manufacturing methods begin to approach a physical limit at the nanoscale. Rather than continue to…

The invention offers a plasma protein biomarker set that can be used as a diagnostic tool for diagnosis and stratification of colorectal cancer.

Target dates are critical when the semiconductor industry adds small, enhanced features to our favorite devices by integrating advanced materials onto the…

After the Big Bang 13.8 billion years ago, the universe cooled down rapidly, and within less than a million years the cosmos became completely dark. The…

Now you see it, now you don’t: In books and movies, wizards use magic spells to easily change things from a solid to see-through state. However, in reality,…

1. Starting up the National Spherical Torus Experiment-Upgrade (NSTX-U)

When some swift, massive stars — moving at speeds faster than 50,000 miles an hour — plow through space, they can cause material to stack up in front of them…

A modern fuel cell is usually made of a stack of individual cells that are mechanically pressed together. In MOD-FC the pressing takes place not mechanically but hydraulically. Due to the complete flushing of separate individual cells with the hydraulic medium, a homogeneous pressing of the inner cell components is ensured. In addition, the hydraulic medium can be directly used as a cooling medium. This ensures a homogeneous electric current generation among the surface and also that no life shortening hot spots appear.
By the nearly ideal operating conditions MOD-FC are capable to examine in-situ membrane electrode units. First functional models are already in use (see figure). A plurality of simultaneously reproducible samples can be examined under the same operating conditions, which improve the quality of test results and reduces significantly the amount of sampling tests. Moreover, individual elements can be replaced by separate individual cells without great effort, due to the modular design of the stacks. In contrast to conventional fuel cell stacks MOD-FC can thus be maintained at a cellular basis.

The inventions are serving to segment organs or organ areas out of multi-channeled volumetric MRT data sets.
To do so, the first invention uses segmentation outcomes from Trial data, which was generated by hand and recorded by several people. After recording an MRT dataset, a first pre-segmentation method is used.In this case, the grayscale information from the MRT data is used along with characteristic regions to create probability data for the organ.
A further development of this technique delivers the possibility to use the image slices from the training data to determine at least three classes of characteristic shape. For every class a support vector machine is trained. By using an exclusion method on each other they are able to detect the characteristic organ form. Based on this segmented area a patient specific probability data set is generated, on which a further segmentation technique is used. By combining both methods, a reliable fully automated segmentation is possible, with one or more emphases. Furthermore this application is less susceptible to variability in the MRT data. It is also possible to process one channel volumetric data.

Heat exchanger suitable for devices that also work under lowest temperature and that need a vibration protection with simultaneous optimal cooling.