Abstract: An identity certificate may be issued to a blockchain node. The issuance may include issuing a first identity certificate to a first terminal and receiving a second identity certificate issuance request that is from the first terminal. A second identity certificate may be issued to the first terminal, and a third identity certificate issuance request is received from the second terminal. A third identity certificate is issued to the second terminal, so that the second terminal forwards the third identity certificate to the third terminal.

Abstract: Methods of operating a memory device are disclosed. A method may include receiving a read command, performing a read operation in response to the read command, and receiving an additional command without precharging the local input/output line subsequent to performing the read operation and prior to receiving the additional command. Memory devices and systems are also disclosed.

Abstract: Methods of operating a memory device are disclosed. A method may include receiving a write command, and in response to the write command, performing a write operation without precharging a local input/output line subsequent to receipt of the write command and prior to performing the write operation. Another method may include receiving a read command, performing a read operation in response to the read command, and receiving an additional command without precharging the local input/output line subsequent to performing the read operation and prior to receiving the additional command. Memory devices and systems are also disclosed.

Abstract: A computing device including a logic track including two logic-track magnetic domains separated by a logic-track domain wall, an input track arranged crossing the logic track at a first position of the logic track, and an output track arranged crossing the logic track at a second position of the logic track near the logic-track domain wall. The input track includes at least one input-track magnetic domain, and each of the at least one input-track magnetic domain includes at least one input-track storage unit configured to store binary 0 or 1. The output track includes at least one output-track magnetic domain, and each of the at least one output-track magnetic domain includes at least one output-track storage unit configured to store binary 0 or 1.

Abstract: Methods of operating a memory device are disclosed. A method may include receiving a write command, and in response to the write command, performing a write operation without precharging a local input/output line subsequent to receipt of the write command and prior to performing the write operation. Another method may include receiving a read command, performing a read operation in response to the read command, and receiving an additional command without precharging the local input/output line subsequent to performing the read operation and prior to receiving the additional command. Memory devices and systems are also disclosed.

Abstract: Methods of operating a memory device are disclosed. A method may include receiving a write command, and in response to the write command, performing a write operation without precharging a local input/output line subsequent to receipt of the write command and prior to performing the write operation. Another method may include receiving a read command, performing a read operation in response to the read command, and receiving an additional command without precharging the local input/output line subsequent to performing the read operation and prior to receiving the additional command. Memory devices and systems are also disclosed.

Abstract: A computing device including a logic track including two logic-track magnetic domains separated by a logic-track domain wall, an input track arranged crossing the logic track at a first position of the logic track, and an output track arranged crossing the logic track at a second position of the logic track near the logic-track domain wall. The input track includes at least one input-track magnetic domain, and each of the at least one input-track magnetic domain includes at least one input-track storage unit configured to store binary 0 or 1. The output track includes at least one output-track magnetic domain, and each of the at least one output-track magnetic domain includes at least one output-track storage unit configured to store binary 0 or 1.

Abstract: Methods of operating a memory device are disclosed. A method may include receiving a write command, and in response to the write command, performing a write operation without precharging a local input/output line subsequent to receipt of the write command and prior to performing the write operation. Another method may include receiving a read command, performing a read operation in response to the read command, and receiving an additional command without precharging the local input/output line subsequent to performing the read operation and prior to receiving the additional command. Memory devices and systems are also disclosed.

Abstract: A rotary display hanger is provided, including a base, including a first receiving room and a hollow portion, the first receiving room being adapted for receiving a rotary device, the hollow portion being adapted for receiving the driving head; a position-limiting member, the position-limiting member and the base at least forming a second receiving room which is adapted for receiving the torque wrench; an index portion, received in the hollow portion, including a base portion being configured to connect with the driving head of the torque wrench and an identification portion protruding radially from the base portion, the identification portion being freely rotatable about an axis of the base portion together with the base portion and the driving head in the hollow portion; wherein each of the base portion and the identification portion is radially distanced from an inner face of the hollow portion.

Abstract: The invention discloses a mining crane which is easy to install, and includes a base which is symmetrical in front and back. A support column is fixed on the upper end surface of the base, and a fixed block is fixed on the upper end of the support column. The fixed block, the support column and A traveling device is arranged between the bases, and the traveling device includes four rotatable traveling wheels. When the traveling wheels rotate, the fixed block is moved, and a lifting device is provided in the fixed block. The heavy device includes a rewindable hook for lifting the heavy ore. The traveling device can drive the whole to adjust the installation position through the traveling device. The device has two installation and support methods that can directly abut the mine wall and drill into the mine wall. According to the actual situation of the mine and mining area, it can be reasonably selected to expand its scope of application, without being restricted by the region.

Abstract: The invention discloses a brakeable transportation ore cart for mine mineral transportation, which comprises a base. Hydraulic rods are symmetrically fixed to the left and right ends of the base. The hydraulic rod is provided with a support beam for installing a motor. The motor is mounted on the beam. A moving first gear is mounted on the beam, and a hopper is rotatably installed through a rotating shaft. A second gear meshing with the first gear is fixedly mounted on the rotating shaft. A telescopic plate supported by a first spring is provided at the bottom of the hopper. Drive the hydraulic rod to make the entire hopper rise, and the third guide rod in contact with the lower end of the hopper moves upward along the sliding groove under the action of the left-right symmetrical fourth spring, thereby driving the fourth guide rod to move upward and the fourth guide rod. The fifth gear connected at the end is moved upward.

Abstract: A spin wave control device includes a first magnetic layer, a second magnetic layer arranged above the first magnetic layer, and a capping layer overlapping a portion of the second magnetic layer. The first magnetic layer has a magnetization pointing in a first direction and the second magnetic layer has a magnetization pointing in a second direction that is approximately opposite to the first direction. The capping layer has a magnetization pointing approximately in the first direction or approximately in the second direction.

Abstract: A rotary display hanger is provided, including a base, including a first receiving room and a hollow portion, the first receiving room being adapted for receiving a rotary device, the hollow portion being adapted for receiving the driving head; a position-limiting member, the position-limiting member and the base at least forming a second receiving room which is adapted for receiving the torque wrench; an index portion, received in the hollow portion, including a base portion being configured to connect with the driving head of the torque wrench and an identification portion protruding radially from the base portion, the identification portion being freely rotatable about an axis of the base portion together with the base portion and the driving head in the hollow portion; wherein each of the base portion and the identification portion is radially distanced from an inner face of the hollow portion.

Abstract: A rotary display hanger is provided, including a base, including a first receiving room and a hollow portion, the first receiving room and the hollow portion communicated with each other, the first receiving room being adapted for receiving a rotary device which is connected rotatably with a driving head of a torque wrench, the hollow portion being adapted for receiving an index portion which is connected with the driving head of the torque wrench and rotatable within the hollow portion; a position-limiting member, disengageably connected with the base, the position-limiting member and the base at least forming a second receiving room, one of the base and the position-limiting member having an opening which is communicated with the second receiving room; the second receiving room being adapted for receiving the torque wrench.

Abstract: A tool hanger is provided, including a main body, having a notch, two first pivot portions and at least one first connection portion; a base, detachably connected with the notch, the base having two second pivot portions, one of the first pivot portion and the second pivot portion including a pivot groove and the other including a pivot portion which is pivotally connected with the pivot groove, a direction about which the pivot portion rotates being defined as an axial direction, the pivot portion having a first outer diameter which is transverse to the axial direction and a second outer diameter which is transverse to the axial direction, the first outer diameter being sized greater than an opening span of the pivot groove, the second outer diameter being sized less than or equal to the opening span of the pivot groove.

Abstract: A socket holder is provided, including a base, having at least one first slide locking portion, each first slide locking portion extending along a first direction; at least one support base, each support base having a second slide locking portion which is engageably connected with one of the at least one first slide locking portion along the first direction, the second slide locking portion overlapping one of the at least one first slide locking portion in a second direction perpendicular to the first direction, the second slide locking portion being undisengageable from one of the at least one first slide locking portion in the second direction, the at least one first slide locking portion and the at least one second slide locking portion being in a male-female connection relationship, each support base including at least one connection portion which is rotatable.

Abstract: A slot tool hanger is provided, including: a base, configured to be slidably assembled within a track slot and including a wide section and at least one narrow section in a first direction, the wide section defining a first length dimension in a second direction, each narrow section defining a second length dimension in the second direction, the base further including two end portions at opposite ends in the first direction, at least one of the two end portions including a resilient convex surface on the wide section and a compression structure corresponding to the resilient convex surface; a combination portion, disposed on the base; wherein the first length dimension is greater than the second length dimension and greater than the short side dimension, and the second length dimension is less than or equal to the short side dimension.