Abstract: A multi-loop antenna and an RFID system are used for monitoring tools when machining rotationally symmetric workpieces. A multi-loop antenna is arranged on a tool carrier near a rotationally symmetric tool so that multi-loop antenna encloses the rotationally symmetric tool and the rotationally symmetric tool carries an RFID transponder. The position of this RFID transponder is arranged on the rotationally symmetric tool so that it is arranged in the electromagnetic ring field of the multi-loop antenna. The multi-loop antenna is arranged on the tool carrier so that it is possible to query the RFID transponder on the rotationally symmetric tool in any position while in motion and when at rest.

Abstract: A fill level detection device for electrode cap magazines of welding electrodes includes at least one electrode cap channel disposed in the electrode cap magazine. At least one cap conveyor is disposed in a linearly movable manner, is preferably spring-loaded, is disposed in the electrode cap channel and moves the electrode caps contained in the electrode cap channel toward a removal opening for access by a welding gun. The electrode cap channel has a mechanically connected element which serves as a measuring surface and has an attached and/or fixed side on which a sensor for measuring a distance is disposed. The sensor projects a measuring beam onto the measuring surface to measure the distance between the sensor and the measuring surface, which enables the exact number of electrode caps contained in the electrode cap magazine to be determined by evaluating the distance measured by the sensor.

Abstract: A multi-loop antenna and an RFID system are used for monitoring tools when machining rotationally symmetric workpieces. A multi-loop antenna is arranged on a tool carrier near a rotationally symmetric tool so that multi-loop antenna encloses the rotationally symmetric tool and the rotationally symmetric tool carries an RFID transponder. The position of this RFID transponder is arranged on the rotationally symmetric tool so that it is arranged in the electromagnetic ring field of the multi-loop antenna. The multi-loop antenna is arranged on the tool carrier so that it is possible to query the RFID transponder on the rotationally symmetric tool in any position while in motion and when at rest.

Abstract: The invention relates to a microfluidic device which has at least one first culture chamber with cardiac muscular cells, at least one microfluidic channel, at least one pump (for example a micropump), and at least one detector, said detector being configured to detect an activity of the cardiac muscular cells contained in the culture chamber. The microfluidic device additionally contains at least one controller which is configured to control the at least one pump on the basis of the cardiac muscular cell activity detected by the at least one detector. The invention additionally relates to uses of the microfluidic device.

Abstract: The invention relates to microbial terpene production. Known methods for microbial production of terpenes are mostly based on the direct conversion of sugars. Therefore alternative substrates, in particular alternative carbon sources, for use in microbial terpene production were desirable. The invention relates to a methylotrophic bacterium containing recombinant DNA coding for at least one polypeptide with enzymatic activity for heterologous expression in said bacterium, wherein said at least one polypeptide with enzymatic activity is selected from the group consisting an enzyme of a heterologous mevalonate pathway, a heterologous terpene synthase and optionally a heterologous synthase of a prenyl diphosphate precursor. The invention further relates in particular to a method for de novo microbial synthesis of sesquiterpenes or diterpenes from methanol and/or ethanol.

Abstract: A cell culture measuring system and to a method for comparative investigations on cell cultures. In a cell culture measuring system, cell cultures are cultivated on a cell culture carrier within a flow passage. An inflow and an outflow for a liquid culture medium and at least two sensors are present. At least one further inflow for a test liquid is arranged in the flow direction of the culture medium between the inflow for the culture medium and the outflow of the flow passage so that the test liquid flowing through the flow passage by displacement of the culture medium only flows around and/or over some of the cells present on the cell culture carrier. At least one sensor is arranged in the region of the cells not influenced by test liquid and at least one sensor is arranged in the region of cells influenced by test liquid.

Abstract: The invention relates to a cell culture measuring system and to a method for comparative investigations on cell cultures. It is the object of the invention to propose possibilities with which comparative investigations can be carried out on cell cultures under the same conditions on cells which are influenced by a test liquid and on cells which are not influenced by test liquid. In a cell culture measuring system in accordance with the invention, cell cultures are cultivated on a cell culture carrier within a flow passage. An inflow and an outflow for a liquid culture medium and at least two sensors are present. In addition, at least one further inflow for a test liquid is arranged in the flow direction of the culture medium between the inflow for the culture medium and the outflow of the flow passage so that the test liquid flowing through the flow passage by displacement of the culture medium only flows around and/or over some of the cells present on the cell culture carrier.

Abstract: The invention relates to a method and a device for applying for a flowable material, especially a particulate material, in individual superimposed layers across a support (50), the flowable material being first filled from a stationary feed station (10) into a storage container (24) of an application device. In the application device (30), which travels back and forth across the support, the flowable material is distributed inside the storage container across the entire length of the device and is then metered through a slot into a metering shaft in such a manner that the filling level in the metering shaft remains constant during application of the flowable material from the metering shaft onto the support.

Abstract: The invention relates to a method for the manufacture of a bioreactor or of a lab-on-a-chip system as well as to bioreactors or lab-on-a-chip systems manufactured therewith. In this respect, at least two different components are connected to one another. It is the object of the present invention to set forth a method with which bodies having very different melting points, namely a ceramic material and a polymer, can be connected to one another independently of whether the surfaces to be connected are accessible from the outside or not. In the method in accordance with the invention, a first body made from a polymer which is at least partially transparent for electromagnetic radiation of at least one wavelength ?, and a second body made from a ceramic material which absorbs electromagnetic radiation of the at least one wavelength ? are connected to one another. The first body is at least regionally meltable.

Abstract: The invention relates to a method and a device for applying for a flowable material, especially a particulate material, in individual superimposed layers across a support (50), the flowable material being first filled from a stationary feed station (10) into a storage container (24) of an application device. In the application device (30), which travels back and forth across the support, the flowable material is distributed inside the storage container across the entire length of the device and is then metered through a slot into a metering shaft in such a manner that the filling level in the metering shaft remains constant during application of the flowable material from the metering shaft onto the support.