Abstract: An example operation may include one or more of receiving a unique identifier and a security value from an object, retrieving a previously stored security value of the object from a database based on the received unique identifier, determining that the object is verified based on the received security value and the previously stored security value, and modifying the previously stored security value to generate a modified security value and transmitting the modified security value to the database.

Abstract: An example operation may include one or more of receiving a signed storage request which comprises a unique identifier of an object, a public key of the object, and a signed security value associated with the object, determining, via code installed on a database node, whether the signed storage request is valid based on a signature of the signed storage request and a signature of the signed security value of the object, and in response to validation of the signed storage request, generating a storage object based on the signed storage request which includes the unique identifier, the public key of the object, and the signed security value, and storing the generated storage object in a database including the database node.

Abstract: A circuit breaker includes a switching unit for interrupting an electrical circuit. The switching unit has a stationary fixed contact and a moving contact to be moved relative to the fixed contact and to be switched from a closed position to an open position. A quenching device for quenching an arc when the contacts are opened includes a prechamber for guiding the arc from the contacts to a quenching chamber. The prechamber has two insulating side walls and a pair of arc guide rails situated therebetween. A ferromagnetic shaped part is disposed on each of the side walls, and a permanent magnet is disposed in the region of the fixed contact. The magnetic field of the permanent magnet guides the arc along one of the arc guide rails.

Abstract: A circuit breaker housing for holding a switching device unit and a number of connection contacts for a connection line and/or a busbar. The housing has a first housing part and a second housing part. In the joined, assembled state, the housing parts form a front side and a rear side opposite said front side and at least one connection side and end faces located opposite one another. A holding chamber for a connection module having one of the connection contacts is provided on the front side and/or on at least one of the connection sides.

Abstract: Auditably proving a usage history of an asset, in which the asset includes a hardware security module with at least a public key and a private key. A client application logs hash values of a pair of request data and response data. Usage history of the asset is proved. The proving includes verifying, using the public key, a signature of other hash values of the pair of request data and response data. The other hash values are signed with the private key. The proving further includes comparing the hash values logged by the client application with the other hash values.

Abstract: A drop-detection device detects a drop that escapes from a metering valve. The drop-detection device includes a light guide with first and second light-guiding elements that are arranged opposite each other at an intermediate space. A drop trajectory runs through the intermediate space such that a light beam sent out by the first light-guiding element crosses the drop trajectory and is subsequently coupled into the second light-guiding element. In addition, the drop-detection device includes a light-signal generation device that couples a pulsed light beam with a carrier frequency into the first light-guiding element. Furthermore, the drop-detection device also has a light evaluation device for evaluating the light beam coupled into the second light-guiding element to determine if a drop has been dispensed by the metering valve. A method of detecting a drop is also described.

Abstract: A drop-detection device (11, 11a, 11b) for the detection of drops (TR) that escape from a nozzle of a metering valve (DV), preferably a micro-metering valve, is described. The drop-detection device (11, 11a, 11b) comprises a signal-generation unit (20), which is configured to produce a carrier signal (TS) with a defined pulse frequency. In addition, the drop-detection device (11, 11a, 11b) has a modulation unit (30, 30a) which is configured to generate a modulated signal (MS) due to a physical interaction of the carrier signal (TS) with a drop to be detected (TR), Furthermore, the drop-detection device (11, 11a, 11b) has an evaluation unit (50), which is configured to determine if a drop (TR) has been dispensed by the metering valve (DV) based on the measurement signal (MS) under consideration of the defined pulse frequency. A method (600) of detecting a drop (TR) of a metering valve (DV) is also described.

Abstract: A turbomachine includes a housing and an electric motor in the housing. The electric motor has a shaft, a stator, and a rotor on the shaft. At least one impeller is arranged in a pump housing and driven by the shaft, the impeller having at least one ring of rotor blades delimiting a ring of blade chambers. A side channel is arranged in the pump housing opposite the ring of blade chambers and extends from the pump inlet as far as the pump outlet. A ramp is arranged at an end of the side channel in a radially inner half of the side channel. The ramp starts from a channel bottom, rises in a flow direction as far as the height of the pump housing wall, and merges with its radially outer half into the pump outlet.

Abstract: A secure storage device is connected to a computer system. The secure storage device has a memory including a domain and a subdomain storing first and second data, respectively. The computer system includes a first level hypervisor managing a first level virtual machine, which supports a first operating system, and a second level hypervisor. The second level hypervisor manages a second level virtual machine, which supports a second level operating system. A first authentication process for the first level operating system uses first profile data sent by the computer system and a portion of the first data. A second authentication process for the second level operating system uses second profile data sent by the computer system and a portion of the second data. The first data is not accessible by the second level operating system. The second data is not accessible by the first level operating system.

Abstract: A method for operating a secure storage device with a non-volatile memory on a computer system which executes multiple operating system instances. The non-volatile memory comprises one or more domains which are used by the operating system instances. A separate trusted key entry system is used to configure secret data of an operating system instance stored in the non-volatile memory. The method comprises setting a domain to either secure or non-secure mode; generating a unique identifier of the operating system instance; generating a secure hash for the operating system instance; and storing the secure hash in the domain.

Abstract: A secure storage device is connected to a computer system. The secure storage device has a memory including a domain and a subdomain storing first and second data, respectively. The computer system includes a first level hypervisor managing a first level virtual machine, which supports a first operating system, and a second level hypervisor. The second level hypervisor manages a second level virtual machine, which supports a second level operating system. A first authentication process for the first level operating system uses first profile data sent by the computer system and a portion of the first data. A second authentication process for the second level operating system uses second profile data sent by the computer system and a portion of the second data. The first data is not accessible by the second level operating system. The second data is not accessible by the first level operating system.

Abstract: A method for sharing secret data between multiple containers. In response to the initial booting of an operating system instance in a container, a unique operating system identifier is generated for the operating system instance. A grant authority stores the unique operating system identifier in a reserved area of a secure storage device. In response to a request from the operating system instance to access secret data in the secure storage device, the grant authority determines whether the unique operating system identifier is stored in the secure storage device. The operating system instance may be granted access to secret data in the non-reserved area of the secure storage device.

Abstract: Interruption facility for adjunct processor queues. In response to a queue transitioning from a no replies pending state to a reply pending state, an interruption is initiated. This interruption signals to a processor that a reply to a request is waiting on the queue. In order for the queue to take advantage of the interruption capability, it is enabled for interruptions.

Abstract: A technique for monitoring a shared hardware resource in a computer system running at least two partitions includes collecting measurement data from the hardware resource. An aggregation of the measurement data over a certain time interval is computed. A noise level value adapted to a workload is calculated using a workload dependent heuristic. Noise data, based on the calculated noise level value, is generated. The computed aggregation of measurement data is mixed with the generated noise data. The mixed aggregation of measurement data is output to an external interface for monitoring.

Abstract: Interruption facility for adjunct processor queues. In response to a queue transitioning from a no replies pending state to a reply pending state, an interruption is initiated. This interruption signals to a processor that a reply to a request is waiting on the queue. In order for the queue to take advantage of the interruption capability, it is enabled for interruptions.

Abstract: A technique for monitoring a shared hardware resource in a computer system running at least two partitions includes collecting measurement data from the hardware resource. An aggregation of the measurement data over a certain time interval is computed. A noise level value adapted to a workload is calculated using a workload dependent heuristic. Noise data, based on the calculated noise level value, is generated. The computed aggregation of measurement data is mixed with the generated noise data. The mixed aggregation of measurement data is output to an external interface for monitoring.

Abstract: The present invention relates to rubber or elastomer compositions as can be used for vehicle tires, and to a method for the production of the rubber or elastomer compositions. The elastic modulus of the compositions can be adapted depending on the temperature and/or the application conditions, and is a cost-effective and easily implemented method for the production of the compositions. The rubber or elastomer compositions contain at least one rubber or elastomer matrix and at least 20 to 150 phr of a phase change material in solid or liquid form. The compositions may be made by mixing the at least one rubber and the at least 20 to 150 phr of a phase change material in solid or liquid form, or the at least one rubber is at least brought into contact with the phase change material, and further processing steps can be performed, and a vulcanization can be performed.

Abstract: An elastomeric composition that has a high tensile strength and high hardness is produced by a method that is cost-efficient and easy to carry out. The object is attained by an elastomeric composition that contains at least one base elastomer, at least one hydrophilic polymer, and at least one inorganic salt. The object is furthermore attained by a method for producing an elastomeric composition in which at least one rubber, at least one hydrophilic polymer and at least one inorganic salt are mixed and subsequently vulcanized, the elastomeric composition is then at least partially brought into contact with water, and afterwards the water is at least partially removed from the elastomeric composition. The elastomeric composition according to the invention can, for example, be used in vehicles and machines as a seal, grommet, disc, coupling or membrane.

Abstract: Interruption facility for adjunct processor queues. In response to a queue transitioning from a no replies pending state to a reply pending state, an interruption is initiated. This interruption signals to a processor that a reply to a request is waiting on the queue. In order for the queue to take advantage of the interruption capability, it is enabled for interruptions.

Abstract: A method for operating a secure storage device with a non-volatile memory on a computer system which executes multiple operating system instances. The non-volatile memory comprises one or more domains which are used by the operating system instances. A separate trusted key entry system is used to configure secret data of an operating system instance stored in the non-volatile memory. The method comprises setting a domain to either secure or non-secure mode; generating a unique identifier of the operating system instance; generating a secure hash for the operating system instance; and storing the secure hash in the domain.