Abstract:
In communication system (SYS) including a first network (IN) with at least a first terminal node (CN), and an ad hoc network (AHN) with at least a second terminal node (RN1-RN4; MN), and a gateway (GW), transmission information (TI) is forwarded between the first terminal node (CN) of the first network (IN) and the second terminal node (RN1-RN4; MN) of the ad hoc network (AHN). In order to perform a more accurate flow control of transmission information (TI) inside the mobile ad hoc network (AHN), the gateway (GW) and the second terminal node (MN) exchange transmission information (TI) as well as acknowledgement information (ACTAN, ACTAN′, ACTAN″). Preferably, the exchange of the transmission information (TI) and the acknowledgement information (ACTAN, ACTAN′, ACTAN″) is carried out through a tunnel link (TUN1) established between the gateway (GW) and the second terminal node (MN).
Abstract:
A method for coating a substrate on one or more sides having catalytically active material producible by material deposition under vacuum in a vacuum chamber, using the following steps: loading a substrate in the chamber evacuating the chamber, cleaning the substrate by introducing a gaseous reducing agent, removing the gaseous reducing agent, applying an intermediate layer by means of vacuum arc evaporation, wherein a substrate comprising the same or similar material is introduced into the vacuum chamber, controlling the chamber temperature, coating by vacuum arc evaporation, a metal taken from the group ruthenium, iridium, titanium and mixtures thereof while oxygen is supplied, in a last step the coated substrate is removed from the chamber, wherein at least 99% of the substrate coating is free of constituents originally contained in the substrate itself, and at least 99% of the coating applied on the intermediate layer is kept free of non-oxidized metals.
Abstract:
Apparatuses, realtime-stations, computer programs, and methods for scheduling of traffic in wireless networks are provided. In one embodiment, a method is provided for scheduling of traffic in a wireless networks including real-time stations intending to send real-time traffic and best-effort stations sending best effort traffic. The method can include overhearing for a predetermined period of time the traffic by a station which intends to send real-time traffic, and if from the overhearing the station concludes that there is already a primary station transmitting real-time access markers, assuming by the station a sequence number based on the number of real-time stations which already are sending real-time traffic.
Abstract:
In communication system (SYS) including a first network (IN) with at least a first terminal node (CN), and an ad hoc network (AHN) with at least a second terminal node (RN1-RN4; MN), and a gateway (GW), transmission information (TI) is forwarded between the first terminal node (CN) of the first network (IN) and the second terminal node (RN1-RN4; MN) of the ad hoc network (AHN). In order to perform a more accurate flow control of transmission information (TI) inside the mobile ad hoc network (AHN), the gateway (GW) and the second terminal node (MN) exchange transmission information (TI) as well as acknowledgement information (ACTAN, ACTAN′, ACTAN″). Preferably, the exchange of the transmission information (TI) and the acknowledgement information (ACTAN, ACTAN′, ACTAN″) is carried out through a tunnel link (TUN1) established between the gateway (GW) and the second terminal node (MN).
Abstract:
The invention relates to a method of producing a means of interment or at least part thereof, wherein at least one 3D printing apparatus is first produced, wherein the 3D printing apparatus is set up and provided in order to produce at least one three-dimensional object. In a following step, at least one printing material is introduced into a store of material, wherein individual printed layers, which are built up one upon the other and are stacked one upon the other in the printing direction and which are formed with the printing material in each case. According to the invention, the printing material is an environmentally compatible printing material, and the 3D printing apparatus forms the three-dimensional object, which is produced in particular in the form of a three-dimensional means of interment, by stacking the individual printed layers one above the other.
Abstract:
A method for scheduling of traffic in wireless networks, whereas said network comprises real-time stations intending to send real-time traffic and best-effort stations sending best effort traffic, said method comprising:transmitting by a primary real-time station periodically a real-time access marker to thereby define rounds; assigning a sequence number to each station in said network which intends to send real-time traffic; based on the sequence number assigned to a station, defining a fixed backoff time at which a packet from this station is transmitted after the start of a round to thereby establish a sequence in which the real-time packets are sent by the different realtime stations, said method being characterized by further comprising: overhearing for a predetermined period of time the traffic by a station which intends to send real-time traffic; if from said overhearing said station concludes that there is already a primary station transmitting real-time access markers, assuming by said station a sequence number based on the number of real-time stations which already are sending real-time traffic.
Abstract:
A relay apparatus for relaying a data packet to be transmitted from a first partner transceiver to a second partner transceiver having a receive unit for receiving the data packet and for receiving an acknowledgement packet to be transmitted from the second partner transceiver to the first partner transceiver when the second partner transceiver has successfully received the data packet. The relay apparatus further having a help detector for providing a help indicator if a help necessitated situation is detected and a transmit unit for transmitting the data packet in response to the help indicator. The help necessitated situation is detected based on whether a first communication link between the relay apparatus and the second partner transceiver is better than a second communication link between the first and second partner transceivers, the second communication link being evaluated by an information being available from the data packet.
Abstract:
A method for coating a substrate on one or more sides having catalytically active material producible by material deposition under vacuum in a vacuum chamber, using the following steps: loading a substrate in the chamber evacuating the chamber, cleaning the substrate by introducing a gaseous reducing agent, removing the gaseous reducing agent, applying an intermediate layer by means of vacuum arc evaporation, wherein a substrate comprising the same or similar material is introduced into the vacuum chamber, controlling the chamber temperature, coating by vacuum arc evaporation, a metal taken from the group ruthenium, iridium, titanium and mixtures thereof while oxygen is supplied, in a last step the coated substrate is removed from the chamber, wherein at least 99% of the substrate coating is free of constituents originally contained in the substrate itself, and at least 99% of the coating applied on the intermediate layer is kept free of non-oxidized metals.