Abstract: A fault detection and positioning system for a cell panel in a large-scale photovoltaic array, includes a first photovoltaic panel fault detection and positioning system, a second photovoltaic panel fault detection and positioning system, and/or a third photovoltaic panel fault detection and positioning system. The detection and positioning system can detect faults of panels in the photovoltaic array in real time, especially accurately positioning a photovoltaic panel in which a fault occurs; the number of sensors can be minimized, so that the detection costs can be reduced; and the system can be easily implemented and mounted in existing power stations.

Abstract: A computing apparatus, including at least one general computing core circuit, an internal interface circuit, an external interface circuit, a cache coherence engine circuit, and a protocol conversion circuit. The computing apparatus is coupled to an internal apparatus using the internal interface circuit, and is coupled to an external apparatus using the external interface circuit. When working in a first mode, the cache coherence engine circuit implements cache coherence between the computing apparatus, the internal apparatus, and the external apparatus, and in this case, the computing apparatus is used as a node controller. When working in a second mode, the cache coherence engine circuit processes only cache coherence between the computing apparatus and the internal apparatus, and the external interface circuit is used as a network interface circuit.

Abstract: A track tension device and a track moving device are provided. The track tension device includes an upper transmission belt, a lower transmission belt, an upper tension portion, a lower compression portion and a resilient support portion. The track moving device includes the track tension device.

Abstract: A fault detection and positioning system for a cell panel in a large-scale photovoltaic array, includes a first photovoltaic panel fault detection and positioning system, a second photovoltaic panel fault detection and positioning system, and/or a third photovoltaic panel fault detection and positioning system. The detection and positioning system can detect faults of panels in the photovoltaic array in real time, especially accurately positioning a photovoltaic panel in which a fault occurs; the number of sensors can be minimized, so that the detection costs can be reduced; and the system can be easily implemented and mounted in existing power stations.

Abstract: A liquid dispensing container and cleaning robot are provided. The cleaning robot includes the liquid dispensing container, the liquid dispensing container includes a column-shaped portion; a taper portion having a bottom surface connected to a lower bottom surface of the column-shaped portion; and a drainage outlet disposed on a top point of the taper portion; wherein the liquid dispensing container is disposed on a sloping plane; an included angle between a side surface of the taper portion and the bottom surface of the taper portion is greater than or equal to an included angle between a sloping plane and a level surface.

Abstract: In general, techniques are described for authenticating a parcel consignee. A device including an imaging module, processors, and an output module may implement the techniques. The imaging module images a first indicia of a parcel and a second indicia that is separate from the first parcel to obtain representations of the first and second indicia. The processors process the representations of the first and second indicia to determine a first key specified by the first indicia and a second key specified by the second indicia. The processors also determine whether the second key corresponds with the first key, and authenticate a consignee that provided the second indicia as an authorized recipient of the parcel based on the determination of whether the second key corresponds with the first key. The output module then indicates whether the one or more processors authenticate the consignee as the authorized recipient of the parcel.

Abstract: A solar panel cleaning robot is provided and has a robot body. The robot body can move on at least one solar panel. A cleaning device, a power system, a control system and an electric power system are disposed on an internal or an external of the robot body.

Abstract: A track tension device and a track moving device are provided. The track tension device includes an upper transmission belt, a lower transmission belt, an upper tension portion, a lower compression portion and a resilient support portion. The track moving device includes the track tension device.

Abstract: A computing apparatus, including at least one general computing core circuit, an internal interface circuit, an external interface circuit, a cache coherence engine circuit, and a protocol conversion circuit. The computing apparatus is coupled to an internal apparatus using the internal interface circuit, and is coupled to an external apparatus using the external interface circuit. When working in a first mode, the cache coherence engine circuit implements cache coherence between the computing apparatus, the internal apparatus, and the external apparatus, and in this case, the computing apparatus is used as a node controller. When working in a second mode, the cache coherence engine circuit processes only cache coherence between the computing apparatus and the internal apparatus, and the external interface circuit is used as a network interface circuit.

Abstract: The present invention provides a directory replacement method and device. An HA receives a data access request including a first address from a first CA, if a designated storage where a directory is located is entirely occupied by the directory, and a first directory entry corresponding to the first address is not in the directory, the HA selects a second directory entry from the directory, deletes it and adds the first directory entry into the directory; before the HA replaces the directory entry in the directory, no matter what status (for example, I status, S status or A status) a share status of a cache line corresponding to an address in the directory entry to be replaced is, the HA does not need to request a corresponding CA to perform an invalidating operation on data, but directly replaces the directory entry in the directory, thereby improving replacement efficiency.

Abstract: An aqueous negative contrast agent for CT imaging of the gastrointestinal tract and the preparation method thereof. The agent is used in biological and pharmaceutical field. Its components and the weight percent are: hydrogel matrix 0.01-1%, micro-/nano-particles of the materials with low densities 5-50%, stabilization agents 0.1-5%, the rest is deionized water. The preparation method is: stabilization agents are added into the hydrogel matrix made of natural or synthetic hydrophilic polymers, then micro-/nano-particles of the materials with low CT densities are added or prepared, and uniformly dispersed in the hydrogel matrix. The CT density of the resulted aqueous negative contrast agent for CT imaging of the gastrointestinal tract is ?30 HU to ?500 HU. It can decrease the CT density inside the intestine lumen to lower than ?30 HU. The intestine wall can be depicted clearly and the CT signals intensities inside lumen are uniform.

Abstract: In general, techniques are described for authenticating a parcel consignee. A device including an imaging module, processors, and an output module may implement the techniques. The imaging module images a first indicia of a parcel and a second indicia that is separate from the first parcel to obtain representations of the first and second indicia. The processors process the representations of the first and second indicia to determine a first key specified by the first indicia and a second key specified by the second indicia. The processors also determine whether the second key corresponds with the first key, and authenticate a consignee that provided the second indicia as an authorized recipient of the parcel based on the determination of whether the second key corresponds with the first key. The output module then indicates whether the one or more processors authenticate the consignee as the authorized recipient of the parcel.

Abstract: An aqueous negative contrast agent for CT imaging of the gastrointestinal tract and the preparation method thereof. The agent is used in biological and pharmaceutical field. Its components and the weight percent are: hydrogel matrix 0.01-1%, micro-/nano-particles of the materials with low densities 5-50%, stabilization agents 0.1-5%, the rest is deionized water. The preparation method is: stabilization agents are added into the hydrogel matrix made of natural or synthetic hydrophilic polymers, then micro-/nano-particles of the materials with low CT densities are added or prepared, and uniformly dispersed in the hydrogel matrix. The CT density of the resulted aqueous negative contrast agent for CT imaging of the gastrointestinal tract is ?30HU to ?500HU. It can decrease the CT density inside the intestine lumen to lower than ?30HU. The intestine wall can be depicted clearly and the CT signals intensities inside lumen are uniform.