Abstract: Provided are a method and device for the rear end collision protection of a vehicle. The method comprises: in a driving process of a current vehicle, detecting a rear vehicle distance by a radar; judging whether the rear vehicle distance is less than a distance threshold, and if yes, calculating a collision time according to the approaching speed of the rear vehicle and the rear vehicle distance; and judging whether the collision time is less than a time threshold, and if yes, initiating an airbag disposed at a rear bumper of the current vehicle, wherein after expanded, the airbag forms a long-strip-shaped inflatable bladder at the outside of the rear bumper of the current vehicle.

Abstract: A concrete temperature stress testing machine system and a testing method are provided, in which the concrete temperature stress testing machine system includes: a concrete temperature stress testing machine and a walk-in environment simulation laboratory system; and the concrete temperature stress testing machine includes a testing machine host and a concrete test specimen area. The testing machine host includes a rear fixed end, a front fixed end, and a pair of steel shafts connected between the rear fixed end and the front fixed end. The concrete test specimen area includes a moveable cross-head, a fixed cross-head, and a left side formwork, a bottom formwork and a right formwork connected between the moveable cross-head and the fixed cross-head.

Abstract: A concrete temperature stress testing machine system and a testing method are provided, in which the concrete temperature stress testing machine system includes: a concrete temperature stress testing machine and a walk-in environment simulation laboratory system; and the concrete temperature stress testing machine includes a testing machine host and a concrete test specimen area. The testing machine host includes a rear fixed end, a front fixed end, and a pair of steel shafts connected between the rear fixed end and the front fixed end. The concrete test specimen area includes a moveable cross-head, a fixed cross-head, and a left side formwork, a bottom formwork and a right formwork connected between the moveable cross-head and the fixed cross-head.

Abstract: A concrete temperature stress testing machine system including: a concrete temperature stress testing machine and a walk-in environment simulation laboratory system; and the walk-in environment simulation laboratory system includes a walk-in environment simulation laboratory, a host control cabinet, a compressor set room, an environment room control cabinet and a computer. The concrete temperature stress testing machine achieves the temperature deformation self-compensation by using the combination of different proportions of invar and No. 45 steel, an embedded type directly measuring deformation technology of the concrete temperature stress testing is achieved by the fit between the upper and side embedded parts, the embedded rod and the extending rod.

Abstract: A concrete temperature stress testing machine system including: a concrete temperature stress testing machine and a walk-in environment simulation laboratory system; and the walk-in environment simulation laboratory system includes a walk-in environment simulation laboratory, a host control cabinet, a compressor set room, an environment room control cabinet and a computer. The concrete temperature stress testing machine achieves the temperature deformation self-compensation by using the combination of different proportions of invar and No. 45 steel, an embedded type directly measuring deformation technology of the concrete temperature stress testing is achieved by the fit between the upper and side embedded parts, the embedded rod and the extending rod.

Abstract: A method for producing multiple temporal frames of a time-resolved contrast enhanced magnetic resonance angiogram from a subject using an MR contrast agent by repeatedly applying RF pulses and sampling data in the corresponding image k-space along spiral trajectories that start at the k-space center and spiral outward toward the k-space edge.

Abstract: Methods and systems for authenticating a security device for providing a secure access and transaction authorization to a remote network location are provided. The security device is authenticated by installing private security software on the security device. In order to authorize a transaction, a transaction authorization is performed using the security device by display a QR (Quick Response) code from an authorization server on a user terminal and scanning the QR code into the security device. After scanning the QR code, an OTA (One-Time-Authorization) code is sent from the security device to the authorization server for verifying the transaction. Embodiments of the present invention provide increased security and privacy. A corresponding system for authenticating a security device and preforming secure and private transactions is also provided.

Abstract: A method for producing multiple temporal frames of a time-resolved contrast enhanced magnetic resonance angiogram from a subject using an MR contrast agent by repeatedly applying RF pulses and sampling data in the corresponding image k-space along spiral trajectories that start at the k-space center and spiral outward toward the k-space edge.

Abstract: Methods and systems for authenticating a security device for providing a secure access and transaction authorization to a remote network location are provided. The security device is authenticated by installing private security software on the security device. A Two-Channel authorization method includes a transaction notification/authorization channel and a transaction channel. A Three-Channel authorization method includes a transaction notification channel, a transaction authorization channel, and the transaction channel. Embodiments of the present invention provide increased security and privacy. A corresponding system for authenticating a security device and preforming secure private transactions is also provided.

Abstract: Methods for authenticating a security device at a local network location for providing a secure access from the local network location to a remote network location are provided. A security device is registered by installing private security software on the security device that generates an asymmetrical encryption key pair including an encryption key and a decryption key. The encryption key is stored only on the security device and the decryption key is stored only on a remote server. Embodiments of the present invention provide increased security by not storing the encryption key on the remote server so that attackers stealing data from the server cannot pretend to a user having the registered security device. A corresponding system for authenticating a security device is also provided.

Abstract: Methods and systems for authenticating a security device for providing a secure access and transaction authorization to a remote network location are provided. The security device is authenticated by installing private security software on the security device. A Two-Channel authorization method includes a transaction notification/authorization channel and a transaction channel. A Three-Channel authorization method includes a transaction notification channel, a transaction authorization channel, and the transaction channel. Embodiments of the present invention provide increased security and privacy. A corresponding system for authenticating a security device and preforming secure private transactions is also provided.

Abstract: Methods and systems for authenticating a security device for providing a secure access and transaction authorization to a remote network location are provided. The security device is authenticated by installing private security software on the security device. In order to authorize a transaction, a transaction authorization is performed using the security device by display a QR (Quick Response) code from an authorization server on a user terminal and scanning the QR code into the security device. After scanning the QR code, an OTA (One-Time-Authorization) code is sent from the security device to the authorization server for verifying the transaction. Embodiments of the present invention provide increased security and privacy. A corresponding system for authenticating a security device and preforming secure and private transactions is also provided.

Abstract: System and method for providing access to remote computing services in an application server are described, where the authentication and authorization processes are separated, excluding service access privileges from the authenticating process and transferring the privileges to the authorization process. A client device and a user are authenticated, and upon successful authentication, the authorization process is performed, including establishing an authorization connection between the client device and the server computer; at the server computer, detecting and verifying the authorization connection; and upon successful verification, allowing access of the client device to the service on the server computer.

Abstract: System, method, and apparatus for providing access to remote computing services are described. The method includes authenticating a user and a client device; establishing a connection to a server computer including: a server program executing on the server computer detecting the connection; the server program creating a blocking process on the server computer to block access of the user to a service on the connection, authorizing, using a client program executing on the client device and the server program, the user to use the service on the server computer including: terminating the blocking process, the user using the service; and the user closing the connection to the server computer. Embodiments of the present invention provide secure remote access to computing services.

Abstract: Methods for authenticating a security device at a local network location for providing a secure access from the local network location to a remote network location are provided. A security device is registered by installing private security software on the security device that generates an asymmetrical encryption key pair including an encryption key and a decryption key. The encryption key is stored only on the security device and the decryption key is stored only on a remote server. Embodiments of the present invention provide increased security by not storing the encryption key on the remote server so that attackers stealing data from the server cannot pretend to a user having the registered security device. A corresponding system for authenticating a security device is also provided.

Abstract: System and method for providing access to remote computing services in an application server are described, where the authentication and authorization processes are separated, excluding service access privileges from the authenticating process and transferring the privileges to the authorization process. A client device and a user are authenticated, and upon successful authentication, the authorization process is performed, including establishing an authorization connection between the client device and the server computer; at the server computer, detecting and verifying the authorization connection; and upon successful verification, allowing access of the client device to the service on the server computer.

Abstract: System, method, and apparatus for providing access to remote computing services are described. The method includes authenticating a user and a client device; establishing a connection to a server computer including: a server program executing on the server computer detecting the connection; the server program creating a blocking process on the server computer to block access of the user to a service on the connection, authorizing, using a client program executing on the client device and the server program, the user to use the service on the server computer including: terminating the blocking process, the user using the service; and the user closing the connection to the server computer. Embodiments of the present invention provide secure remote access to computing services.

Abstract: System, method, and apparatus for providing access to remote computing services are described. The method includes authenticating a user and a client device; establishing a connection to a server computer including: a server program executing on the server computer detecting the connection; the server program creating a blocking process on the server computer to block access of the user to a service on the connection, authorizing, using a client program executing on the client device and the server program, the user to use the service on the server computer including: terminating the blocking process, the user using the service; and the user closing the connection to the server computer. Embodiments of the present invention provide secure remote access to computing services.

Abstract: System, method, and apparatus for providing access to remote computing services are described. The method includes authenticating a user and a client device; establishing a connection to a server computer including: a server program executing on the server computer detecting the connection; the server program creating a blocking process on the server computer to block access of the user to a service on the connection, authorizing, using a client program executing on the client device and the server program, the user to use the service on the server computer including: terminating the blocking process, the user using the service; and the user closing the connection to the server computer. Embodiments of the present invention provide secure remote access to computing services.

Abstract: A method for producing multiple temporal frames of a time-resolved contrast enhanced magnetic resonance angiogram from a subject using an MR contrast agent by repeatedly applying RF pulses and sampling data in the corresponding image k-space along spiral trajectories that start at the k-space center and spiral outward toward the k-space edge.