摘要:
Currently, metallic loops are tested for shorts, opens and grounds by applying a test signal (DC or 20 Hz) directly to the metallic looop. A test signal cannot be applied to any part of the network other than the metallic loop because it will be blocked by the A-to-D converters and the hybrid of the system before it can reach the metallic loop.In this invention, digital signal processing is used to test a metallic loop for shorts, opens, grounds and the presence of loading coils from a remote location. Direct metallic connection to the metallic loop is no longer necessary.Briefly, a test signal, in digital form, is fed into the network at some convenient location remote from the metallic loop that is to be tested. As the signal passes through the A-to-D converter from the digital section of the network to the analog metallic loop, it is converted by the A-to-D converter into an analog signal having a specific frequency and a predetermined amplitude. Defects - opens, shorts and grounds - in the metallic loop cause reflections of the analog test signal. These reflections, as they travel back toward the digital network, are converted by the A-to-D converter into digital form. The reflected signals are then detected, processed and compared to other test signals to determine the presence of shorts, opens, grounds and loading coils in the metallic loop.
摘要:
One or more interactions between a first user and a second user of a social networking system are identified. Each respective interaction of the one or more interactions is scored based on a group score and a time penalty. The group score is based on the number of users in the respective interaction and the time penalty is based on a time between a current time and a time of a last interaction between the first user and the second user. A relationship ranking that measures the first user's affinity towards the second user is determined, where the relationship ranking comprises one or more interaction scores. An indicator representing the relationship ranking is sent to a client for display.
摘要:
In an embodiment of the present invention, a valve seal for a ball valve includes a ball configured to mate with a tail piece, an annular seat ring to facilitate the mating of the ball with the tail piece, the seat ring having an angled wall having a first groove for accommodating a first seal and a second groove for accommodating a second seal, the first seal having a different Young's modulus from the second seal.
摘要:
In accordance with one embodiment of the present invention, a seal for a surge relief valve includes a) a valve housing having a flow inlet and a flow outlet; b) an annular retainer for coupling a plug to an interior of the valve housing, the retainer having a first end oriented toward the flow inlet and a second end remote therefrom; c) the plug having a first end oriented toward the flow inlet and a second end remote therefrom, the plug having a mating junction for coupling with the second end of the retainer, the plug having a first countersink, a second countersink, a first lip defined between the first and second countersinks and a second lip adjacent the second countersink; and d) an annular plug seal having a first end oriented toward the flow inlet and a second end remote from the first end for mating with the second countersink and a lip that abuts the second end of the retainer.
摘要:
One or more interactions between a first user and a second user of a social networking system are identified. Each respective interaction of the one or more interactions is scored based on a group score and a time penalty. The group score is based on the number of users in the respective interaction and the time penalty is based on a time between a current time and a time of a last interaction between the first user and the second user. A relationship ranking that measures the first user's affinity towards the second user is determined, where the relationship ranking comprises one or more interaction scores. An indicator representing the relationship ranking is sent to a client for display.
摘要:
Systems and methods for tagging digital content are provided. In some embodiments, a method comprises receiving and storing personal data of a first user of an internet-based social network. The personal data of the first user can include one or more digital images or other digital content that the first user is willing to share with other users of the social network. Accordingly, a request from a second user of the internet-based social network can be received to view some of the digital content of the first user. A viewer image can be used to tag the digital content of the first user allowing the owner of the digital content to quick determine the viewers. The viewer image can be a personal profile picture, an image, an icon, an avatar (two-dimensional or three-dimensional), or other on-screen representation that includes a visual indicator of the second user.
摘要:
Systems and methods for tagging digital content are provided. In some embodiments, a method comprises receiving and storing personal data of a first user of an internet-based social network. The personal data of the first user can include one or more digital images or other digital content that the first user is willing to share with other users of the social network. Accordingly, a request from a second user of the internet-based social network can be received to view some of the digital content of the first user. A viewer image can be used to tag the digital content of the first user allowing the owner of the digital content to quickly determine the viewers. The viewer image can be a personal profile picture, an image, an icon, an avatar (two-dimensional or three-dimensional), or other on-screen representation that includes a visual indicator of the second user.
摘要:
An exemplary printable composition comprises a liquid or gel suspension of a plurality of metallic nanofibers or nanowires; a first solvent; and a viscosity modifier, resin, or binder. In various embodiments, the metallic nanofibers are between about 10 microns to about 100 microns in length, are between about 10 nm to about 120 nm in diameter, and are typically functionalized with a coating or partial coating of polyvinyl pyrrolidone or a similar compound. An exemplary metallic nanofiber ink which can be printed to produce a substantially transparent conductor comprises a plurality of metallic nanofibers; one or more solvents such as 1-butanol, ethanol, 1-pentanol, n-methylpyrrolidone, cyclohexanone, cyclopentanone, 1-hexanol, acetic acid, cyclohexanol, or mixtures thereof; and a viscosity modifier, resin, or binder such as polyvinyl pyrrolidone or a polyimide, for example.
摘要:
Systems and methods for asynchronous communications within an information sharing platform are provided. Traditional social network models use bi-directional friendship or unidirectional following. In contrast to these models, embodiments of the present invention provide for a unidirectional sharing friendship model. The unidirectional friendship model allows people to share information through a path of communications with a set of recipients selected by the sharer.
摘要:
In an embodiment of the present invention, a valve seal for a ball valve includes a ball configured to mate with a tail piece, an annular seat ring to facilitate the mating of the ball with the tail piece, the seat ring having an angled wall having a first groove for accommodating a first seal and a second groove for accommodating a second seal, the first seal having a different Young's modulus from the second seal.