Solid oxide fuel cells are high temperature fuel cells and use solid oxide ceramic electrolytes. The solid electrolyte is designed as a thin membrane to transport oxygen ions with low energy. For example, in BSCF ceramics, the presence of carbon dioxide has a strong negative effect on oxygen permeability.

The invention is based on the coding of contact matrices. The chromosome coordinates describe the start and end positions of a gene (or genetic element) on a chromosome. A pair of chromosome coordinates that are close to each other is called a contact. A contact matrix can be represented in the form of a sparse […]

Despite the broad potential and scope of application in bone tissue engineering, conventional CaP materials exhibit poor biodegradability, low load-bearing capacity, modest mechanical properties, and insufficient bioactivity or osteoinductivity, among others. These properties are detrimental to targeted drug delivery and sustained action and/or controlled drug release. Porous CaP materials are useful for cell colonization, vascularization, […]

Until now, attempts have been made to compensate for hearing loss by using costly hearing implants. The present new technology pursues a different approach. Animal studies in mice have shown a correlation between the function of gap junction proteins and their essential role in ageinduced hearing loss.

IMS are widely used systems for the rapid and sensitive detection of various substances. Drift time IMS measure the time it takes for ions to travel a certain distance in an electric field. To generate a defined field, the drift region is surrounded by a large number of drift rings, each of which is set […]

Wireless communication of cochlear implant signal processors with external devices is widely used today. For example, external microphones can be placed right next to a teacher so that the teacher’s voice is transmitted wirelessly via the external microphone to one or more signal processors. This can significantly improve the speech understanding of CI-users in difficult […]

Existing camera-based people tracking systems produce false trajectories when people are obscured by other people or obstacles, or if the objects look very similar. Especially in the sports sector, people tracking systems are not able to provide correct trajectories.

In waterjet cutting, a distinction is made between pure waterjet cutting and abrasive waterjet cutting. Pure waterjet cutting is only suitable for cutting soft materials, which is why abrasive waterjet cutting is mostly used industrially. It is suitable for cutting almost all materials and is divided into injector jet cutting and suspension jet cutting. So […]

Selections of cells or tissues from a mixture of thousands of cell populations can be carried out after microscopic identification by known methods such as “Laser Capture Microdissection” by Palm.

The standard device for the examination of skin diseases in everyday clinical practice is the so-called dermatoscope. This is a reflected-light microscope which is placed on the corresponding skin area, i.e. it works in contact mode. Modern devices often also have the possibility to store the enlarged images digitally. Due to the fact that these […]

The artificial production of biological tissue by the directed cultivation of cells in order to replace or regenerate diseased tissue in a patient is summarised under the term “tissue engineering”. Before culture, the structural scaffold is combined with the removed vital material to form a 3D cell culture. The focus is on polymers that are […]

In minimally invasive diagnosis and therapy, robotic instruments and manipulators have been established as a part of assistance systems. Those allow surgeons to apply significantly more complex surgical techniques intracorporeally. An actuator unit arranged outside the patient’s body provides the necessary manipulation forces. For this, the spatial distance between the instrument and / or manipulator […]

Currently, metrological investigations of vibrating structures are carried out within the framework of Structural Health Monitoring (SHM) by measuring a physical vibration quantity in one or more directions of a global Cartesian coordinate system at individual measuring positions. In order to carry out these measurements, the necessary sensors are installed according to a measuring point […]

During high-performance machining, chatter vibrations can occur that were previously prevented/reduced by a free surface chamfer on the milling tool. If a free-form chamfer is used, the highest surface quality can only be achieved with difficulty.

Currently, the cutting head is changed manually – a change takes about three minutes. Until now, there is no automated change system for cutting heads in waterjet technology.

The generation of labelled data is extremely cost-intensive and error-prone. Using Amazon Mechanical Turk, for example, requires accurate verification of label results, automated relabelling and filtering of useful results.

LDS (laser direct structuring) is a technology for applying conductor paths to injection-moulded components. A corresponding moulded part consists of doped plastics provided with organometallic additives (LDS additives). A laser beam causes a chemical reaction on the surface, which produces a thin, metallic, roughened surface. In subsequent coating processes, layers of copper, nickel and gold […]

For the hard finishing of milling cutters and other cutting tools, flute grinding is used first – followed by face and circumferential machining. Machining of the flutes involves coupled translational and rotational movements and is also similar to the discontinuous profile grinding of gear teeth.

Micro-pixel LEDs, DMD / DLP, LCD, Liquid Crystal on Silicon (LCoS) and scanners are used in headlight systems. Currently, innovative functions such as glare-free high beam or road projections are being implemented to increase traffic safety and driving comfort. Chromatic road projections are particularly promising because they can generate the light information on the road […]

In plasma arc welding, an ionized gas is accelerated by applying a voltage towards the workpiece. Upon impact of the ions on the workpiece material, the kinetic energy is converted to heat, thereby melting the workpiece material and the weld material. The liquefied weld material in the form of drops forms the basis for additive […]

There are considerable efforts to release drugs from neuronal implants using different methods. So far, no sustainable and universal concept has been found. Platinum is suitable as an electrode material because of its good electrochemical properties and because it is organicinert. It can also be produced in porous form and could store and release active […]

The aim of tire manufacturers is to integrate sensors into the tire during the tire manufacturing process. The integration of a metrological sensor into a tire is described in the German patent application DE 10 2016 123 795 A1 and the international patent application WO 2018/104047 A1.

The state of the art includes systems that examine the drilling process and the process parameter.

High demands are made on sensors with regard to homogeneity and manufacturing quality. In the field of temperature or strain measurement sensors, for example, compliance with defined resistance values is of great interest. This applies in particular to the interconnection of sensors in bridge circuits.

The radar sensors of a vehicle scan different angular ranges and make the data available to the driver assistance system.

The proposed optical switching of the photoactive unit in the backbone of the linker molecules of the MOF as claimed in WO 2014015383 A1 and EP 13823026 is not practical since the whole crystal structure expands and shrinks upon optical switching like an accordion or like bellows.

In processes such as laser cutting, for example, tilted components can cause collisions with a processing instrument. Laser triangulation can be used to detect obstacles. Process light prevents the reliable detection of laser lines and thus the detection of obstacles.

Carbon fibres in various technical areas are specially synthesised, and their design is usually based on their mechanical properties. A high proportion of graphite already ensures electrical conductivity, which is even lower than that of metallic conductors such as copper or aluminium.

Distance sensors based on ultrasonic, infrared or radar signals have the disadvantage of interfering with each other in urban traffic. With camera-based driver assistance systems, corresponding disparity maps (depth maps) can be created without the influence of such interference disturbances. A prerequisite for powerful FAS is the availability of precisely aligned camera images. However, when […]

Manufacturing processes are usually carried out in natural air atmosphere, whereby a permanent oxidation of the surfaces of the workpiece and tool takes place.

The use of PVD systems for coating components requires a vacuum environment. The vacuum systems limit the use of any size components, furthermore, a chemical reaction of certain materials during the sputtering process can not be excluded.Therefore, in this novel process, the component to be coated and the vacuum process are separated from each other.

A conventional method for cell permeabilization is known as “optoinjection”. The membrane of a biological cell may transiently be permeabilized by tightly focusing the pulse of a nanosecond laser onto the cell membrane. Through the resulting hole in the cell membrane, macromolecules such as DNA or RNA strands from the ambience may be introduced into […]

In modern remote computing, data and programs are encrypted during storage and while in transit only. This is performed by applying approved cryptographic methods. However, in order to be processed, data and programs have to be decrypted. To achieve this, the remote resource needs to know the secret decryption key to be able to decrypt […]

At present, it is not possible to cast sensors or other electrical components into metallic materials without thick thermal insulation layers.