Abstract: A fixed bed bioreactor assembly for culturing cells is provided and methods for sampling cell culture substrates from such assemblies. The assembly includes a bioreactor vessel having an interior space for culturing cells and a sidewall at least partly defining the interior space; and a plurality of cell culture substrate layers in the interior space, each layer having a structurally defined surface for culturing cells thereon. The structurally defined surface defines an ordered and regular array of openings through a thickness of the layer. The assembly further includes a sleeve at least partially surrounding the plurality of cell culture substrate layers and having at least one sample access window. The sample access window includes an opening in the sleeve to allow one or more layers of the cell culture substrate to be removed from the sleeve through the opening.

Abstract: A method improves antenna matching for a node, in particular a sensor apparatus and/or actuator apparatus, of a communications network. The node is capable of radio communication and has a radio module equipped with an antenna and a transmit path and/or receive path for radio signals to be emitted and/or received. The node has a power supply apparatus, which is preferably energy self-sufficient, in particular a battery. The antenna has an impedance and in the receive situation and/or in the transmit situation in the case of adjustable matchings, preferably by use of adjustable matching networks, the signal to noise ratio associated with each matching is estimated, and a matching is selected from the different matchings for the receive mode and/or the transmit mode.

Abstract: According to various aspects of the disclosure, a valve assembly for a vacuum chamber housing may have: a valve housing, which has a substrate transfer gap; a valve flap, which is mounted so as to be rotatable about an axis of rotation, thus enabling said flap to be rotated into a first position and into a second position, wherein the axis of rotation is arranged in the substrate transfer gap, and wherein the substrate transfer gap is extended longitudinally along the axis of rotation; wherein the valve flap closes the substrate transfer gap in the first position and is arranged adjacent to the substrate transfer gap in the second position.

Abstract: A multi-spark gap for an overvoltage protector, having multiple electrodes and insulation elements arranged between the electrodes, a holding arrangement for mechanical holding and for making electrical contact with the electrodes of the multi-spark gap, wherein the holding arrangement has at least a first electrically conductive clamping element, a second electrically conductive clamping element, and a first electrically conductive connecting element, wherein the electrodes are arranged between the first clamping element and the second clamping element, wherein the first clamping element makes electrical contact with the first electrode of the multi-spark gap, and wherein the second clamping element makes electrical contact with the last electrode of the multi-spark gap, and wherein the at least first connecting element mechanically connects the first clamping element and the second clamping element to one another.

Abstract: A tracking device can use a permanent encryption key pair to encrypt a temporary private key that corresponds to a set of diversified temporary public keys. When a community mobile device subsequently detects the tracking device, the central tracking system provides a diversified temporary public key to the community mobile device. The community mobile device uses the diversified temporary public key to encrypt location data representative of a location of the community mobile device, and provides the encrypted location data to the central tracking system. When a user subsequently requests a location of the tracking device from the central tracking system, the central tracking system provides the encrypted temporary private key and the encrypted location data to a device of the user, and the device can decrypt the encrypted temporary private key using the permanent encryption key pair, and decrypt the encrypted location data using the decrypted temporary private key.

Abstract: Compositions comprising UV blocking agents, a film forming polymer containing acid groups and a neutralizing agent; compositions and methods for increasing the SPF of a composition by neutralizing at least a portion of the acid groups of the film forming agent with the neutralizing agent.

Abstract: A web of film material wound about a central longitudinal axis to provide a roll, the film material including a conformable base film comprising a first surface and an opposite second surface. The web of film material further includes an adhesive layer including a first surface bonded to the second surface of the base film and an opposite second surface, a release liner releasably attached to the second surface of the adhesive layer, and a protective film layer releasably attached to the first surface of the conformable base film.

Abstract: A multi-spark gap having both a high power-follow current extinguishing capacity as well as a relatively low protective level in which a distance x1 between a first electrode and an adjacent second electrode, which together form a first individual spark gap, is larger than respective distances x2 between other adjacent electrode pairs of additional individual spark gaps. The distance x1 is at least 0.5 mm and the distances x2 of the additional individual spark gaps are at most 0.2 mm. Additionally, an ignition aid for igniting the first individual spark gap is provided, which aid has at least a resistive ignition element and a voltage-limiting element, wherein the ignition element is connected to an electric-arc combustion chamber of the first individual spark gap and is electrically connected on the one side to the first electrode and on the other side via the voltage-limiting element to the second contact element.

Abstract: An assembly for delivering an analyte sensor comprising a sensor control device. The sensor control device comprises an electronics housing with a shell having a first aperture and a first interface, and a mount having a second aperture and second interface, wherein the housing has an interior space. The two interfaces define a first sterile barrier. The housing also comprises a first mating member, a circuit board, and an analyte sensor. The assembly also comprises an applicator to deliver the sensor, and comprising a housing and a cap removably coupled to the housing to seal the applicator's interior, a sharp hub, and a second mating member extending within the first or second aperture, which mates with the first mating member to define a second sterile barrier. The sensor control device also comprises a collimator, a third sterile barrier, and a fourth sterile barrier which define a sterilization zone.

Abstract: A tracking device can use a permanent encryption key pair to encrypt a temporary private key that corresponds to a set of diversified temporary public keys. When a community mobile device subsequently detects the tracking device, the central tracking system provides a diversified temporary public key to the community mobile device. The community mobile device uses the diversified temporary public key to encrypt location data representative of a location of the community mobile device, and provides the encrypted location data to the central tracking system. When a user subsequently requests a location of the tracking device from the central tracking system, the central tracking system provides the encrypted temporary private key and the encrypted location data to a device of the user, and the device can decrypt the encrypted temporary private key using the permanent encryption key pair, and decrypt the encrypted location data using the decrypted temporary private key.

Abstract: A connecting joint for adjustably connecting at least two components of a laboratory automation system is disclosed. The connecting joint comprises a horizontal bearing unit connectable to a first component of the at least two components of the laboratory automation system; a vertical bearing unit connectable to a second component of the at least two components of the laboratory automation system; and a slider bar connecting the horizontal bearing unit with the vertical bearing unit, wherein the slider bar is movably mounted along a vertical axis within the vertical bearing unit; and wherein the slider bar is adjustably mounted in the horizontal bearing unit, wherein the slider bar is adjustable in at least one dimension essentially perpendicular to the vertical axis by the horizontal bearing unit.

Abstract: The invention relates to a method for assembling a first metal part with a second part made of a composite material comprising at least one matrix and fibers arranged inside the matrix. The method comprises at least: a step of forming the first part, consisting in producing a plurality of teeth projecting from a contact face of the first part, two adjacent teeth being separated from each other by an interstitial space, the teeth having an end protuberance; and a step of pressing the second part against the first part, in such a way that the fibers of the composite material can penetrate inside the interstitial space defined between adjacent teeth and that the fibers are retained by the end protuberances of the teeth.

Abstract: A tracking device can use a permanent encryption key pair to encrypt a temporary private key that corresponds to a set of diversified temporary public keys. When a community mobile device subsequently detects the tracking device, the central tracking system provides a diversified temporary public key to the community mobile device. The community mobile device uses the diversified temporary public key to encrypt location data representative of a location of the community mobile device, and provides the encrypted location data to the central tracking system. When a user subsequently requests a location of the tracking device from the central tracking system, the central tracking system provides the encrypted temporary private key and the encrypted location data to a device of the user, and the device can decrypt the encrypted temporary private key using the permanent encryption key pair, and decrypt the encrypted location data using the decrypted temporary private key.

Abstract: A method of operating a capacitive sensing device that includes a capacitive sensor having at least one sense electrode, a measurement signal source for providing an alternating electric measurement signal with at least three fixed predefined signal frequencies to the at least one sense electrode, and an impedance measurement circuit for determining an unknown complex impedance of the at least one sense electrode from a response to the provided electric measurement signal.

Abstract: A composition and method for insect repellent is provided. The composition in one form has on a weight percentage basis 2-4% ?-pinene; 2-4% borneol; 8-10% geraniol; 28-35% linalool; 25-38% linalyl acetate; 1-4% methyl salicylate; 2-4% myrcene; 2-4% para-cymene; 4-8% phellandrene; 1-4% thymol; and 2-4% vanillin. The composition has insect repellent properties.

Abstract: A tracking device can use a permanent encryption key pair to encrypt one or more temporary encryption key pairs, which can then be provided to a central tracking system. When a community mobile device subsequently detects the tracking device, the central tracking system provides an encrypted temporary encryption key pair to the community mobile device. The community mobile device uses the encrypted temporary encryption key pair to encrypt location data representative of a location of the community mobile device, and provides the encrypted location data to the central tracking system. When a user subsequently requests a location of the tracking device from the central tracking system, the central tracking system provides the encrypted location data, and a device of the user can decrypt the encrypted temporary encryption key pair using the permanent encryption key pair, and can decrypt the location data using the decrypted temporary encryption key pair.

Abstract: A tracking device can use a permanent encryption key pair to encrypt a temporary private key that corresponds to a set of diversified temporary public keys. When a community mobile device subsequently detects the tracking device, the central tracking system provides a diversified temporary public key to the community mobile device. The community mobile device uses the diversified temporary public key to encrypt location data representative of a location of the community mobile device, and provides the encrypted location data to the central tracking system. When a user subsequently requests a location of the tracking device from the central tracking system, the central tracking system provides the encrypted temporary private key and the encrypted location data to a device of the user, and the device can decrypt the encrypted temporary private key using the permanent encryption key pair, and decrypt the encrypted location data using the decrypted temporary private key.

Abstract: A differential scanning calorimeter includes a temperature-controlled heat source and a sensor arrangement with sample- and reference-side pan support regions and measurement regions. Measurement region sensor(s) output a differential heat flow signal representative of a difference between heat flowing across the sample- and reference-side measurement regions and a sample- and reference-side local heater arrangement. A sample and reference pan are arranged on the sample and reference-side pan support region, respectively. A volume surrounding the pans is filled with a measuring gas. A steady state situation of a desired temperature is created, and once reached, heating power is applied to one of the pan support regions using the respective local heater arrangement. A second calibration factor is determined based on a ratio of a differential heat flow signal (U) and a differential heating power.

Abstract: A sensing unit for a differential scanning calorimeter includes a superposition of layers of a thermoelectric arrangement, a layer of an electrical heater arrangement and a layer of an absolute temperature measurement arrangement. The thermoelectric arrangements, the electrical heater arrangements and the absolute temperature measurement arrangements are symmetrically arranged on a sample-side and a reference-side of the sensor.

Abstract: A gripping appliance is disclosed. A head assembly is releasably attached to, and extends distal from, a base member. A plunger actuator moves a plunger along a proximal-distal axis of the gripping appliance. The head assembly includes a carrier with a through opening which receives the plunger and at least two gripping legs. Each of the gripping legs include a tip portion distal of a fixation portion, an actuation portion adjacent to and proximal of the tip portion, and a flex portion between the actuation and fixation portions. The actuation portions contact the plunger when the plunger is in an extended, distal position. The fixation portions are rigidly mounted to the carrier. The actuation and tip portions are distal from the carrier. When no force is transferred from the plunger to the gripping legs, the tip portions converge in a proximal-distal direction of the gripping appliance.