Abstract: A wearable robot for integrated fracture reduction and rehabilitation, comprising a proximal ring, a distal ring, six driving branch chains, motor driving device and manual driving device; the six driving branch chains are divided into two groups, each of them comprises a platform connecting sleeve, a sliding bearing, a bearing locking nut, a proximal Hooke hinge, an intermediate prismatic pair, a sleeve, a force sensor, and a distal Hooke hinge; one end of the driving branch chain is connected with the proximal ring by a connecting sleeve fastener, and the other end is connected with the distal ring by nut, each driving branch chain is connected with the driving devices via D-shaped shaft sleeve. The wearable robot has electric-manual dual model driving, and the branch chain can be quickly replaced during and after the operation.

Abstract: The present invention discloses a wearable robot for integrated fracture reduction and rehabilitation, comprising a proximal ring, a distal ring, six driving branch chains, motor driving device and manual driving device; the six driving branch chains are divided into two groups, each of them comprises a platform connecting sleeve, a sliding bearing, a bearing locking nut, a proximal Hooke hinge, an intermediate prismatic pair, a sleeve, a force sensor, and a distal Hooke hinge; one end of the driving branch chain is connected with the proximal ring by a connecting sleeve fastener, and the other end is connected with the distal ring by nut, each driving branch chain is connected with the driving devices via D-shaped shaft sleeve. The present invention has electric-manual dual model driving, and the branch chain can be quickly replaced during and after the operation.

Abstract: The present invention discloses an automatic recognition method for spatial position and pose of parallel external fixator, including the following steps of: installing three markers on each of the two fixation rings of the parallel external fixator; obtaining 3D images of six marker balls after scanning and reconstruction by a common 3D clinical imaging system; recognizing the sphere center coordinates of the six marker balls by sphere fitting algorithm; according to the mounting configuration of the markers on the two fixation rings, establishing coordinate systems of two fixation rings and determining the spatial position and pose of the external fixator; in addition, by obtaining the 3D images of the fracture bone segments with the 3D clinical imaging system and simulating the movement of the fracture deformity correction, the adjustment schedule of the external fixator struts can be achieved.

Abstract: A freely-connectable three-strut parallel orthopedic external fixator including two fixation rings and three struts, connecting holes are circumferentially and uniformly distributed on the ring surfaces of each fixation ring, each strut is provided with two driving translational pairs, a revolute pair and a spherical pair. Two fixation rings are respectively fixedly connected with the bone segments of the fracture site by using medical metal bone pins; adjusting the driving translational pairs of the six struts can achieve six DoF relative movement of the two fixation rings, thereby achieving fracture reduction. The external fixator of the present invention realizes free connection between the two fixation rings, which facilitates fixator installment; number of struts is less than the existing external fixators.

Abstract: An online system matches a user across multiple online systems based on image data for the user (e.g., profile photo) regardless whether the image data is from the online system, a different but related online system or a third party system. For example, to match the user across a social networking system and INSTAGRAM™ system, the online system compares the similarity between images of the user from both systems in addition to similarity of textual information in the user profiles on both systems. The similarity of image data and the similarity of textual information associated with the user are used by the online system as indicators of matched user accounts belonging to the same user across both systems. The online system applies models trained using deep learning techniques to match a user across multiple online systems based on the image data and textual information associated with the user.

Abstract: A fracture reduction method and a parallel external fixator for fracture reduction for realizing the method, the fracture reduction method being used for existing six-chain ring-shaped parallel external fixators in minimally invasive fracture reduction or osteotomy of limbs. The parallel external fixator comprises two fixation rings, six struts and six markers, the fixation rings are arranged with a plurality of connecting holes, the struts are arranged with a spherical hinge, a driving joint (1302), a quick-mounting component and a universal hinge, the markers comprise marker balls and a pin shaft. The parallel external fixator can improve the treatment accuracy, reliability and operation convenience.

Abstract: The present invention discloses an automatic recognition method for spatial position and pose of parallel external fixator, including the following steps of: installing three markers on each of the two fixation rings of the parallel external fixator; obtaining 3D images of six marker balls after scanning and reconstruction by a common 3D clinical imaging system; recognizing the sphere center coordinates of the six marker balls by sphere fitting algorithm; according to the mounting configuration of the markers on the two fixation rings, establishing coordinate systems of two fixation rings and determining the spatial position and pose of the external fixator; in addition, by obtaining the 3D images of the fracture bone segments with the 3D clinical imaging system and simulating the movement of the fracture deformity correction, the adjustment schedule of the external fixator struts can be achieved.

Abstract: A fracture reduction method and a parallel external fixator for fracture reduction for realizing the method, the fracture reduction method being used for existing six-chain ring-shaped parallel external fixators in minimally invasive fracture reduction or osteotomy of limbs. The parallel external fixator comprises two fixation rings, six struts and six markers, the fixation rings are arranged with a plurality of connecting holes, the struts are arranged with a spherical hinge, a driving joint (1302), a quick-mounting component and a universal hinge, the markers comprise marker balls and a pin shaft. The parallel external fixator can improve the treatment accuracy, reliability and operation convenience.

Abstract: A method for tracking a stability of an identifier and selecting content to present on a client device associated with the identifier based on the stability of the identifier. An identifier defines how a client device accesses online systems via a network. An online system stores tentative identifiers. From the stored tentative identifiers, the online system identifies stable identifiers. An identifier's stability is based on the identifier's interactions with online systems via the network. The online system ranks the stable identifiers. The online system stores a quantity of top-ranked identifiers from the ranked stable identifiers. The online system identifies an impression opportunity for a client device associated with an identifier. In embodiments in which the identifier comprises a top-ranked identifier, the online system determines content to include in the impression opportunity based on the identifier and presents the determined content on the client device.

Abstract: The present invention discloses a freely-connectable three-strut parallel orthopedic external fixator including two fixation rings and three struts, connecting holes are circumferentially and uniformly distributed on the ring surfaces of each fixation ring, each strut provides with two driving translational pairs, a revolute pair and a spherical pair. Two fixation rings are respectively fixedly connected with the bone segments of the fracture site by using medical metal bone pins; adjusting the driving translational pairs of the six struts can achieve six DoF relative movement of the two fixation rings, thereby achieving fracture reduction. The external fixator of the present invention realizes freely connection between the two fixation rings, which facilitates fixator installment; number of struts is less than the existing external fixators, thus the present invention has light weight and less interference on the observation of fluoroscopic images.

Abstract: An online system matches a user across multiple online systems based on image data for the user (e.g., profile photo) regardless whether the image data is from the online system, a different but related online system or a third party system. For example, to match the user across a social networking system and INSTAGRAM™ system, the online system compares the similarity between images of the user from both systems in addition to similarity of textual information in the user profiles on both systems. The similarity of image data and the similarity of textual information associated with the user are used by the online system as indicators of matched user accounts belonging to the same user across both systems. The online system applies models trained using deep learning techniques to match a user across multiple online systems based on the image data and textual information associated with the user.

Abstract: An online system receives a variety of identifiers associated with a user of the online system and generates a federated list of identifiers for the user that includes each of the received identifiers. Identifiers may be browser identifiers, device identifiers, Internet protocol address, personally identifiable information, or a user identifier of a different online system. For each identifier in the federated list of identifiers, the online system generates metadata information such as a confidence score indicating a degree of certainty that the identifier can be used to accurately identify the user of the online system. The online system aggregates features associated with the identifiers in the federated list of identifiers to generate a comprehensive user profile of the user and uses the comprehensive user profile to better serve the user.

Abstract: An online system matches a user across multiple online systems based on image data for the user (e.g., profile photo) regardless whether the image data is from the online system, a different but related online system or a third party system. For example, to match the user across a social networking system and INSTAGRAM™ system, the online system compares the similarity between images of the user from both systems in addition to similarity of textual information in the user profiles on both systems. The similarity of image data and the similarity of textual information associated with the user are used by the online system as indicators of matched user accounts belonging to the same user across both systems. The online system applies models trained using deep learning techniques to match a user across multiple online systems based on the image data and textual information associated with the user.

Abstract: An online system matches a user across multiple online systems based on image data for the user (e.g., profile photo) regardless whether the image data is from the online system, a different but related online system or a third party system. For example, to match the user across a social networking system and INSTAGRAM™ system, the online system compares the similarity between images of the user from both systems in addition to similarity of textual information in the user profiles on both systems. The similarity of image data and the similarity of textual information associated with the user are used by the online system as indicators of matched user accounts belonging to the same user across both systems. The online system applies models trained using deep learning techniques to match a user across multiple online systems based on the image data and textual information associated with the user.

Abstract: An online system matches a user across multiple online systems based on image data for the user (e.g., profile photo) regardless whether the image data is from the online system, a different but related online system or a third party system. For example, to match the user across a social networking system and INSTAGRAM™ system, the online system compares the similarity between images of the user from both systems in addition to similarity of textual information in the user profiles on both systems. The similarity of image data and the similarity of textual information associated with the user are used by the online system as indicators of matched user accounts belonging to the same user across both systems. The online system applies models trained using deep learning techniques to match a user across multiple online systems based on the image data and textual information associated with the user.

Abstract: An online system receives a variety of identifiers associated with a user of the online system and generates a federated list of identifiers for the user that includes each of the received identifiers. Identifiers may be browser identifiers, device identifiers, Internet protocol address, personally identifiable information, or a user identifier of a different online system. For each identifier in the federated list of identifiers, the online system generates metadata information such as a confidence score indicating a degree of certainty that the identifier can be used to accurately identify the user of the online system. The online system aggregates features associated with the identifiers in the federated list of identifiers to generate a comprehensive user profile of the user and uses the comprehensive user profile to better serve the user.

Abstract: A parallel mechanism with three-dimensional translation and one-dimensional rotation include a fixing rack, a mobile platform and four chains of the same structure which are symmetrically set between the fixing rack and the mobile platform. Each chain has a near rack rod and two parallel far rack rods. The mobile platform includes a main platform and an assistant platform connected by a revolute joint and perpendicular to each other. Each end of the main platform and the assistant platform is connected with a corresponding lower connecting shaft separately.

Abstract: A parallel mechanism with three-dimensional translation and one-dimensional rotation include a fixing rack, a mobile platform and four chains of the same structure which are symmetrically set between the fixing rack and the mobile platform. Each chain has a near rack rod and two parallel far rack rods. The mobile platform includes a main platform and an assistant platform connected by a revolute joint and perpendicular to each other. Each end of the main platform and the assistant platform is connected with a corresponding lower connecting shaft separately.

Abstract: A powertrain controller of a vehicle provides fuel injection pulses based on gasoline operation. The pulse widths of the fuel injection pulses are modified with reference to air temperature, engine speed, and exhaust gas oxygen (EGO) content to control fuel injectors for an alternative fuel such as natural gas. The EGO content, based on alternative fuel operation, is detected and compared to a desired air-fuel ratio or desired fuel trims to provide error information that is used to adjust the modification of the pulse widths. In response to the error information, a neural network (as an example) dynamically adjust the pulse widths of the alternative fuel injection based on the weights of measured, detected engine speed, EGO, universal exhaust gas oxygen, or air temperatures. The engine operating on alternative fuel is provided with the proper mixture of alternative fuel and air to respond to various engine loads and meet emission standards.

Abstract: A powertrain controller of a vehicle provides fuel injection pulses based on gasoline operation. The pulse widths of the fuel injection pulses are modified with reference to air temperature, engine speed, and exhaust gas oxygen (EGO) content to control fuel injectors for an alternative fuel such as natural gas. The EGO content, based on alternative fuel operation, is detected and compared to a desired air-fuel ratio or desired fuel trims to provide error information that is used to adjust the modification of the pulse widths. In response to the error information, a neural network (as an example) dynamically adjust the pulse widths of the alternative fuel injection based on the weights of measured, detected engine speed, EGO, universal exhaust gas oxygen, or air temperatures. The engine operating on alternative fuel is provided with the proper mixture of alternative fuel and air to respond to various engine loads and meet emission standards.