Abstract: A door including a barrier-free sill is disclosed. The sill preferably has recesses on its upper side, the width of the recesses being less than 50 mm and/or the depth of the recesses being less than 3 mm. A leaf can penetrate the upper side in a leaf recess. The leaf may fall below the vertically uppermost dimension of a running rail. Using at least one projection of a carriage that extends into a guide groove, it is possible to reliably seal or transversely support the leaf in the event of wind pressure or a break-in attempt. The projection preferably extends further down than a running roller of the carriage. This enables the design of a particularly stable and yet barrier-free door.

Abstract: A door including a barrier-free sill is disclosed. A reliable seal or transverse support of the leaf in the event of wind pressure or an attempted break-in is achieved by at least one projection of a carriage, which extends into a guide groove. The projection extends further down than a running roller of the carriage. This enables the design of a particularly stable and yet barrier-free door.

Abstract: A deionization battery cell including a first electrode compartment containing a first intercalation host electrode and includes a first water stream compartment in fluid communication with the first electrode compartment. The deionization battery cell further includes a second electrode compartment containing a second intercalation host electrode and a second water stream compartment in fluid communication with the second electrode compartment. The deionization battery cell also includes an ion exchange membrane assembly including a plurality of anion exchange membranes separated from each other, and from one or more cation exchange membranes positioned between the anion exchange membranes, by a plurality of intervening water stream compartments. The first and second water stream compartments are separated from one another by the ion exchange membrane assembly.

Abstract: Various embodiments of the teachings herein include a method for determining a criticality of an electrical power distribution grid. An example method includes: providing a machine learning model of the power distribution grid fitted to smart meter data representing a power consumption of customers connected via a distribution transformer to conducting equipment of a substation of the power distribution grid and fitted to data representing voltages at selected conducting equipment of the power distribution grid and at the customers' service delivery points; using the provided machine learning model for calculating a grid impact score representing the grid state of the power distribution grid based on power limit violations and/or based on voltage limit violations; and evaluating the calculated grid impact score to determine the criticality of the electrical power distribution grid.

Abstract: A desalination battery includes a working intercalation electrode in a first compartment, a counter intercalation electrode in a second compartment, both compartments including saline water solution with an elevated concentration of dissolved salts, an ion exchange membrane arranged between the compartments, a voltage source arranged to supply voltage to the electrodes, and a sacrificial compound configured to neutralize charge within the first compartment at a predetermined voltage while being consumed by oxidation or reduction reactions upon an activation of the working electrode.

Abstract: A computer-implemented method for analyzing network information in an electrical energy supply grid includes the following steps: receiving serialized network information in a first application-specific data format by way of a communication device, wherein the serialized network information contains information about system components, deserializing the serialized network information by way of a deserialization device, and assigning component types based on the information about system components by way of a first assignment device, and assigning component properties based on the information about system components by way of a second assignment device, and providing a network topology that, as a graph, contains types and properties of the system components, in a second application-specific data format by way of a topology output device. There is also described a corresponding arrangement and a computer program product.

Abstract: A window or a door has a fixed frame and a sash movable relative to the fixed frame. The sash is supported on a running rail of the fixed frame via at least one carriage with at least one roller. The sash can be moved transversely/perpendicularly to the main plane of the fixed frame by a control arm, wherein a roller part of the carriage moves in a straight line with respect to a sash part of the carriage. The control arm is supported on the fixed frame via the roller of the roller part and/or via a support part. The control arm is actuated by the longitudinal movement of a drive rod, the movement imparted via a pin, which is guided in a slot. The slot guides the pin on both sides with both control flanks, except for the play necessary to move the pin in the slot.

Abstract: A desalination battery cell includes a first compartment separated by an anion exchange membrane from a second compartment, each of the first and second compartments containing a saline water solution having a concentration of dissolved salts c1 and first and second intercalation host electrodes, respectively, in fluid communication with the solution, a voltage source supplying electric current to the first and second intercalation host electrodes to release cations into the solution, and a controller programmed to adjust an amount of the electric current being supplied to change direction of anions in the solution passing through the anion exchange membrane between the compartments such that the first and second compartments alternately collect and disperse salt from the solution and release desalinated water solution having a concentration c2 of dissolved salts and a brine solution having a concentration c3 of dissolved salts such that c3>C1>C2.

Abstract: A method and system for charging a battery (e.g., including but not limited to lithium-ion batteries). The method may comprise: iteratively determining a plurality of charge profiles of the battery; based on the plurality of charge profiles, iteratively determining swelling of the battery; and adjusting a charge current during a subsequent charging of the battery.

Abstract: Various embodiments of the teachings herein include a method for the reinforced learning of an artificial neural network. The neural network uses measured values associated with a supply network to determine a plurality of control values for controlling the supply network. The method may include: determining a control value so at least one limit value of a measurement variable of the supply network is violated in a time range, wherein the time range is determined in such a way that protective devices of the supply network do not trip; acquiring at least one measured value associated with the control value; and training the neural network using the calculated control value and the acquired associated measured value.

Abstract: An electrostatic charging air cleaning device. The device includes a pre-charger configured to generate a corona discharge to electrostatically charge particulate matter in an air stream. The device further includes a separator downstream from the pre-charger configured to convey the electrostatically charged particulate matter and formed of an insulative material. The device also includes a collection electrode configured to receive and to absorb the conveyed electrostatically charged particulate matter. The collection electrode includes a substrate material and a coating layer coated onto the substrate material. The coating layer includes a carbon black material and a polymeric binder. The substrate material is a metal plate including mechanical perforations.

Abstract: A process for making a cathode active material for a lithium ion battery is described. The process includes (a) a step of synthesizing a mixed oxide of formula Li1+xTM1?xO2 at a temperature ranging from 750 to 1000° C. in an oxidizing atmosphere, where TM is a combination of two or more transition metals of Mn, Co and Ni and, optionally, at least one more metal of Ba, Al, Ti, Zr, W, Fe, Cr, K, Mo, Nb, Mg, Na and V, and x is a number ranging from zero to 0.2, (b) a step of cooling down the material obtained from step (a) to a temperature ranging from 100 to 400° C., (c) a step of adding at least one reactant of BF3, SO2 and SO3 at the temperature of 100 to 400° C., and (d) a step of cooling down to a temperature of 50° C. or below.

Abstract: A desalination battery includes a first electrode, a second electrode, an intercalation compound contained in the first electrode, a container configured to contain a saline water solution, and a power source. The intercalation compound includes at least one of a metal oxide, a metalloid oxide, a metal oxychloride, a metalloid oxychloride, and a hydrate thereof with each having a ternary or higher order. The first and second electrodes are configured to be arranged in fluid communication with the saline water solution. The power source is configured to supply electric current to the first and second electrodes in different operating states to induce a reversible intercalation reaction within the intercalation compound. The intercalation compound reversibly stores and releases target anions from the saline water solution to generate a fresh water solution in one operating state and a wastewater solution in another operating state.

Abstract: The teachings herein include methods for operating a low- or medium-voltage power supply network including lines and a plurality of systems connected thereto. The method may include: providing GIS data with geographic location information relating to the power supply network; producing a branch model of the lines on the basis of the GIS data, including determining a starting probability for connections; providing system data characterizing at least one system; producing a prior model of the network by combining the branch model with the system data, including determining a starting probability for the system; generating an input state describing a possible state of the power supply network described by the prior model; carrying out a load flow simulation calculating a state variable on the basis of the input state; determining a state model of the power supply network on the basis of the state variable; and operating the power supply network based on the state model.

Abstract: An air duct of an internal combustion engine has an inner pipe providing a flow channel and a housing with a first housing part and a second housing part, wherein the inner pipe is arranged in the housing. The first housing part and the second housing part enclose a chamber between the inner pipe and the housing. The inner pipe has at least one section with perforations in a wall of the inner pipe, wherein the perforations completely penetrate the wall of the inner pipe. A cylindrical acoustic component at least partially encloses the at least one section of the inner pipe at an outer side of the inner pipe. A wall of the cylindrical acoustic component is provided, at least in sections thereof, with continuous openings. The flow channel is acoustically connected via the perforations and via the continuous openings to the chamber.

Abstract: A desalination device includes a container, first and second electrodes, an anion exchange membrane (AEM), and a power source. The container contains saline water that has an elevated concentration of dissolved salts. The AEM separates the container into first and second compartments into which the first and second electrodes, respectively, are arranged. The AEM has a continuous porous structure and a plurality of negatively-charged oxygen functional groups coupled to the porous structure. The power source is configured to selectively apply a voltage to one of the first and second electrodes. The AEM has a selective permeability when the voltage is applied such that cations in the saline water solution have a first diffusion rate d1 therethrough and anions in the saline water solution have a second diffusion rate d2 therethrough. The first diffusion rate d1 is less than the second diffusion rate d2 and greater than or equal to zero.

Abstract: A desalination method that may be used to reduce limescale buildup in desalination electrodes. The desalination method includes providing an electrode including a first material having at least one compound of a formula before a desalination step. The formula is AxFeyCuz(CN)6, where A is Na, Li or K, 0.1?x?2, 1?y, and z?2. The desalination method further includes exchanging A in AxFeyCuz(CN)6 with Ca to form a second material from the first material during the desalination step.

Abstract: A fuel cell includes a flow field plate, a catalyst layer, and a gas diffusion layer (GDL). The flow field plate has at least one channel and at least one land. Each of the at least one channel being positioned between two adjacent lands. The GDL is positioned between the flow field plate and the catalyst layer. The catalyst layer has a first region aligned with the at least one channel and a second region aligned with the at least one land. The first region has a first composition, a first carbon material, and a first carbon ratio of an amount of the first composition to the first carbon material. The second region has a second composition, a second carbon material, and a second carbon ratio of an amount of the second composition to the second carbon material. The first carbon ratio is different than the second carbon ratio.

Abstract: A solid state electrolyte material including a decontaminated lithium conducting ceramic oxide material including a decontaminated surface thickness. The decontaminated surface thickness is less than or equal to 5 nm. The decontaminated surface thickness may be greater than or equal to 1 nm. The decontaminated lithium conducting ceramic oxide material may be selected from the group consisting of Li7La3Zr2O12 (LLZO), Li5La3Ta2O12 (LLTO), Li6La2CaTa2O12 (LLCTO), Li6La2ANb2O12 (A is Ca or Sr), Li1+xAlxGe2-x(PO4)3 (LAGP), Li14Al0.4(Ge2-xTix)1.6(PO4)3 (LAGTP), perovskite Li3xLa2/3-xTiO3 (LLTO), Li0.8La0.6Zr2(PO4)3 (LLZP), Li1+xTi2-xAlx(PO4)3 (LTAP), Li1+x+yTi2-xAlxSiy(PO4)3-y (LTASP), LiTixZr2-x(PO4)3 (LTZP), Li2Nd3TeSbO12 and mixtures thereof.

Abstract: A filter housing has a first housing part with a first rim section and a second housing part with a second rim section. The housing parts can be joined and separated from each other in axial mounting direction and define a housing interior for a filter element provided with a circumferentially extending sealing element. The first and second rim sections form a receiving area in which the sealing element is seal-tightly clamped radially between the first and second rim sections when the housing parts are joined in the mounted state. A snap connecting device axially braces the first and second housing parts relative to each other. The snap connecting device is formed integrally on the first and second housing parts such that a clamping force applied by the first and second rim sections on the sealing element in radial direction is decoupled from the snap connecting device.