Abstract: A device and method for monitoring freezing-thawing damage of an underwater concrete member in situ. A main structure includes an upper link, concrete member, transverse sealed box, longitudinal sealed box, movable guide rod, probe launching box, multichannel data collector, frequency modulation transmitter, computer, auxiliary wheels, lower link, and a wireless temperature sensor. A process includes four steps: launching of a probe, collection of data, calculation of an elastic modulus, and evaluation of freezing-thawing damage.

Abstract: A train having a protection device with self-adaptive crashworthiness is disclosed, which relates to the technical field of safety protection of trains. The train includes multiple vehicles, a head vehicle is located at the head end of the train, and a head vehicle energy absorbing coupler mechanism is mounted at the front end of the head vehicle, each two adjacent vehicles are connected to each other by a middle vehicle energy absorbing coupler mechanism. An image acquisition mechanism and a radar detector are mounted at the head vehicle for monitoring whether there is an obstacle ahead the train, measuring distance and collision speed between the train and the obstacle, and for transmitting measured data to a processing center of the train, the processing center optimizes and adjusts impact force at the head vehicle energy absorbing coupler mechanism and the middle vehicle energy absorbing coupler mechanisms based on a collision situation.

Abstract: A device and method for monitoring freezing-thawing damage of an underwater concrete member in situ. A main structure includes an upper link, concrete member, transverse sealed box, longitudinal sealed box, movable guide rod, probe launching box, multichannel data collector, frequency modulation transmitter, computer, auxiliary wheels, lower link, and a wireless temperature sensor. A process includes four steps: launching of a probe, collection of data, calculation of an elastic modulus, and evaluation of freezing-thawing damage.

Abstract: A resource access method applied to a computer and the computer, where the resource access method is performed by a resource controller which is used to implement resource virtualization. The method includes receiving a resource access request of a virtual machine (VM) for a resource, where the resource access request carries a resource virtual address and an identifier of the VM, translating the resource virtual address into a resource physical address using the identifier of the VM and based on a preset resource information mapping relationship, updating the resource virtual address in the resource access request using the resource physical address, and sending an updated resource access request to a to-be-accessed resource corresponding to the resource physical address in order to access the to-be-accessed resource.

Abstract: A resource access method applied to a computer and the computer, where the resource access method is performed by a resource controller which is used to implement resource virtualization. The method includes receiving a resource access request of a virtual machine (VM) for a resource, where the resource access request carries a resource virtual address and an identifier of the VM, translating the resource virtual address into a resource physical address using the identifier of the VM and based on a preset resource information mapping relationship, updating the resource virtual address in the resource access request using the resource physical address, and sending an updated resource access request to a to-be-accessed resource corresponding to the resource physical address in order to access the to-be-accessed resource.