Abstract: Machine-learned model scoring techniques for reducing model invocations are provided. In one technique, first values for non-pair-specific interaction features that are associated with a first entity are identified. Second values for pair-specific interaction features that are associated with (a) the first entity and (b) a second entity that is different than the first entity are identified. A machine-learned model that has been trained based on the non-pair-specific interaction features and the pair-specific interaction features generates a first score based on the first values. The machine-learned model also generates a second score based on the first values and the second values. A final score for the first entity-second entity pair is computed based on the first score and the second score. Based on the final score, data about the first entity is transmitted over a computer network to a computing device associated with the second entity.

Abstract: The disclosure provides a heterojunction bipolar transistor and a preparation method thereof. Since an emitter region has the same physical structure as a base region, and improves frequency characteristics of the device; Simultaneously with biaxial strain, uniaxial strain is introduced. Carrier transmission time in the collector region will be effectively reduced. By this structure, the width of the effective collector region is reduced, the collector junction capacitance is reduced, and the frequency characteristics of the device are further improved; an appropriate choice of the thickness of the Si cap layer can effectively reduce the accumulation of carriers at an interface and increase the gain of the device; at the same time, the preparation method of the bipolar transistor is completely compatible with a 90-nanometer CMOS process, which effectively reduces the development and manufacturing cost of the device.

Abstract: This disclosure provides a high-voltage terahertz strained SiGe/InGaP heterojunction bipolar transistor and a preparation method thereof. An InGaP material has characteristics of a high carrier mobility of the InP material and a forbidden band width of the GaP material, so that the present disclosure employs the N-type In1-xGaxP layer as the collector to improve the frequency and power characteristics of the device, and realize the system integration of terahertz band chips. Further, the present disclosure utilizes the characteristics of the above materials and takes an advantages of “energy band engineering”, uses the In1-xGaxP (x=0-1) is used as the material of the collector of the SiGe-HBT, the composition molar ratio X of In and Ga is appropriately selected, such that the materials SiGe of the collector and the sub-collector have the same lattice constant, so as to effectively improve interface characteristics of InGaP and SiGe materials.

Abstract: The disclosure provides a heterojunction bipolar transistor and a preparation method thereof. Since an emitter region has the same physical structure as a base region, and improves frequency characteristics of the device; Simultaneously with biaxial strain, uniaxial strain is introduced. Carrier transmission time in the collector region will be effectively reduced. By this structure, the width of the effective collector region is reduced, the collector junction capacitance is reduced, and the frequency characteristics of the device are further improved; an appropriate choice of the thickness of the Si cap layer can effectively reduce the accumulation of carriers at an interface and increase the gain of the device; at the same time, the preparation method of the bipolar transistor is completely compatible with a 90-nanometer CMOS process, which effectively reduces the development and manufacturing cost of the device.

Abstract: This disclosure provides a high-voltage terahertz strained SiGe/InGaP heterojunction bipolar transistor and a preparation method thereof. An InGaP material has characteristics of a high carrier mobility of the InP material and a forbidden band width of the GaP material, so that the present disclosure employs the N-type In1-xGaxP layer as the collector to improve the frequency and power characteristics of the device, and realize the system integration of terahertz band chips. Further, the present disclosure utilizes the characteristics of the above materials and takes an advantages of “energy band engineering”, uses the In1-xGaxP (x=0-1) is used as the material of the collector of the SiGe-HBT, the composition molar ratio X of In and Ga is appropriately selected, such that the materials SiGe of the collector and the sub-collector have the same lattice constant, so as to effectively improve interface characteristics of InGaP and SiGe materials.

Abstract: A cleaning mechanism having a self-locking function, comprising a cleaning rack, a cleaning member and a sweeping member, adapted for use on photovoltaic panel, is disclosed. The cleaning rack comprising a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod which are detachably connected. The cleaning member being detachably mounted between the first connecting rod and the third connecting rod, used for stripping off adhesive materials on photovoltaic panel; the sweeping member used for sweeping adhesive materials away from photovoltaic panel. Cleaning mechanism further comprises a cleaning member power unit, detachably connected with the cleaning member and used for driving cleaning member to rotate; and cleaning member power unit comprises a self-locking device, used for preventing cleaning member from idling, and sundries are prevented from being twisted thereon and meanwhile unnecessary wear between cleaning member and photovoltaic panel can be reduced.

Abstract: A charging compartment adapted for use on a body of a photovoltaic panel cleaning equipment for recharging of battery power of the photovoltaic panel cleaning equipment is provided, in which the charging compartment includes a charging and stopping rack and a telescopic supporting rack. The charging and stopping rack is used for stopping a body and charging the body, and the telescopic supporting rack is used for supporting the charging and stopping rack. The charging and stopping rack and a photovoltaic panel to be cleaned are enabled and configured to be on a same plane by adjusting the angle of the charging and stopping rack. By adopting the charging compartment, the photovoltaic panel cleaning equipment is facilitated to allow the body to remain stationary while being together with the photovoltaic panels which are undergoing cleaning, as well as same time recharging battery power of the photovoltaic panel cleaning equipment.

Abstract: A self-charging terminal, which includes a terminal fixing block, a sloped conductive member and a sloped conductive member mounting member is disclosed. The self-charging terminal is adapted for a photovoltaic panel cleaning equipment for facilitating recharging of battery power. The sloped conductive member is fixed on the sloped conductive member mounting member and the sloped conductive member mounting member is fixed on the terminal fixing block. The self-charging terminal is detachably mounted on the photovoltaic panel cleaning equipment and a shape of the sloped conductive member of the self-charging terminal is specifically matched with that of a telescopic charging member of photovoltaic panel cleaning equipment to facilitate wipe off an oxidization layer on the sloped conductive member, thereby prolonging service life of the self-charging terminal and extending repair cycle time.

Abstract: An anti-falling mechanism, configured and adapted on a photovoltaic panel cleaning equipment for cleaning photovoltaic panels, is provided. The photovoltaic panel cleaning equipment includes a body and a cleaning rack, in which the anti-falling mechanism is being mounted on. The cleaning rack includes several connecting rods which are detachably connected. The anti-falling mechanism includes a first hook and a second hook, each of the first hook and the second hook comprises a fixed part and an anti-falling part, the fixed part is fixedly connected with the anti-falling part and the fixed part is detachably mounted on the first connecting rod. By adopting the anti-falling mechanism, the body of the photovoltaic panel cleaning equipment can be prevented from falling off from the photovoltaic panels during cleaning process of the photovoltaic panels.

Abstract: A self-locking mechanism which is mounted in a moving mechanism of a photovoltaic panel cleaning equipment is disclosed. The moving mechanism includes driving wheels driven by driving motors, and the driving wheels being diagonally and detachably mounted. The self-locking mechanism includes self-locking units arranged between the driving motor and the driving wheel of the moving mechanism, and is used for realizing self-locking of the respective driving wheel. By adopting the self-locking mechanism and the photovoltaic panel cleaning equipment having the self-locking mechanism, when the body of the photovoltaic panel cleaning equipment stops on the photovoltaic panel with a gradient, the body can be prevented from falling off due to the effect of gravity.

Abstract: A cleaning mechanism having a water spray function adapted for cleaning photovoltaic panel is provided, which includes a cleaning rack, a cleaning member and a sweeping member. Cleaning rack includes several connecting rods detachably connected; Cleaning member is detachably mounted between the connecting rods and used for stripping off adhesive materials on photovoltaic panel; the sweeping member being detachably mounted on connecting rods and used for sweeping the adhesive materials away from the photovoltaic panel. A water spray device is detachably mounted on the cleaning rack used for wetting adhesive materials. The water spray device includes a water spray pipe and a water storage tank, and a spray nozzle atomizing water. A cleaning member power unit is detachably connected with the cleaning member and is used for driving the cleaning member to rotate; and the cleaning member power unit comprises a self-locking device used for preventing cleaning member from idling.

Abstract: A moving mechanism adapted for use on a photovoltaic panel cleaning equipment for moving while cleaning one or more photovoltaic panels is disclosed, which includes a cleaning rack, a plane walking unit and a side surface walking unit. The plane walking unit drives the cleaning rack to move along a panel surface of a photovoltaic panel, and the side surface walking unit drives the cleaning rack to move along the side surface of upper edge of photovoltaic panel; the plane walking unit includes driving wheels diagonally and detachably mounted on diagonal line of cleaning rack, driving wheels driven by driving motors; side surface walking unit includes driving wheels and driven driving motors. Moving mechanism allows for more uniformly stress distribution during forward and backward movement on the photovoltaic panel. The photovoltaic panel cleaning equipment including the moving mechanism is also disclosed.

Abstract: A telescopic mechanism arranged on a cleaning rack of a photovoltaic panel cleaning equipment configured for cleaning photovoltaic panels is disclosed. The cleaning rack includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, which are detachably connected, a first fixed rod being arranged on the first connecting rod, a second fixed rod and a third fixed rod being arranged between second connecting rod and fourth connecting rod, a fourth fixed rod being arranged on third connecting rod. Telescopic mechanism includes a first telescopic unit and a second telescopic unit, first telescopic unit is detachably-mounted between first and second fixed rods and the second telescopic unit is detachably-mounted between third and fourth fixed rods. By adopting the telescopic mechanism, photovoltaic panel cleaning equipment can automatically move from one photovoltaic panel array to another photovoltaic panel array in cooperation with obstacle crossing mechanism.

Abstract: A correction mechanism, mounted on a cleaning rack of a photovoltaic panel cleaning equipment, for cleaning photovoltaic panels is disclosed. Cleaning rack includes four connecting rods which are detachably connected; the correction mechanism includes a first correction guide wheel and a second correction guide wheel, the first correction guide wheel and second correction guide wheel are both detachably mounted on the third connecting rod, and when the cleaning rack stably moves on photovoltaic panel, the first correction guide wheel and the second correction guide wheel are not in contact with side surfaces of lower edges of the photovoltaic panel. By adopting the correction mechanism and the photovoltaic panel cleaning equipment having the correction mechanism provided by the present invention, the body of the photovoltaic panel cleaning equipment can be enabled to stably move on the photovoltaic panels when the photovoltaic panels are inclined, thus preventing shaking from occurring.

Abstract: An obstacle crossing mechanism, adapted and arranged on a cleaning rack of a photovoltaic panel cleaning equipment configured to clean photovoltaic panel arrays is disclosed. The cleaning rack includes connecting rods detachably-connected, and fixed rods arranged on respective connecting rods. The obstacle crossing mechanism includes a moving rack and a fixed rack, in which moving rack is used for temporarily stopping photovoltaic panel cleaning equipment; and the fixed rack is located below the moving rack and the moving rack ascends or descends on the fixed rack. A telescopic mechanism is further provided with the obstacle crossing mechanism so that the two mechanisms together facilitates the photovoltaic panel cleaning equipment to travel from a photovoltaic panel array to reach another photovoltaic panel array during cleaning process of photovoltaic panels without requiring any human assistance, thus achieve total automation.

Abstract: An anti-falling mechanism, configured and adapted on a photovoltaic panel cleaning equipment for cleaning photovoltaic panels, is provided. The photovoltaic panel cleaning equipment includes a body and a cleaning rack, in which the anti-falling mechanism is being mounted on. The cleaning rack includes several connecting rods which are detachably connected. The anti-falling mechanism includes a first hook and a second hook, each of the first hook and the second hook comprises a fixed part and an anti-falling part, the fixed part is fixedly connected with the anti-falling part and the fixed part is detachably mounted on the first connecting rod. By adopting the anti-falling mechanism, the body of the photovoltaic panel cleaning equipment can be prevented from falling off from the photovoltaic panels during cleaning process of the photovoltaic panels.

Abstract: A telescopic mechanism arranged on a cleaning rack of a photovoltaic panel cleaning equipment configured for cleaning photovoltaic panels is disclosed. The cleaning rack includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, which are detachably connected, a first fixed rod being arranged on the first connecting rod, a second fixed rod and a third fixed rod being arranged between second connecting rod and fourth connecting rod, a fourth fixed rod being arranged on third connecting rod. Telescopic mechanism includes a first telescopic unit and a second telescopic unit, first telescopic unit is detachably-mounted between first and second fixed rods and the second telescopic unit is detachably-mounted between third and fourth fixed rods. By adopting the telescopic mechanism, photovoltaic panel cleaning equipment can automatically move from one photovoltaic panel array to another photovoltaic panel array in cooperation with obstacle crossing mechanism.

Abstract: A moving mechanism adapted for use on a photovoltaic panel cleaning equipment for moving while cleaning one or more photovoltaic panels is disclosed, which includes a cleaning rack, a plane walking unit and a side surface walking unit. The plane walking unit drives the cleaning rack to move along a panel surface of a photovoltaic panel, and the side surface walking unit drives the cleaning rack to move along the side surface of upper edge of photovoltaic panel; the plane walking unit includes driving wheels diagonally and detachably mounted on diagonal line of cleaning rack, driving wheels driven by driving motors; side surface walking unit includes driving wheels and driven driving motors. Moving mechanism allows for more uniformly stress distribution during forward and backward movement on the photovoltaic panel. The photovoltaic panel cleaning equipment including the moving mechanism is also disclosed.

Abstract: A charging compartment adapted for use on a body of a photovoltaic panel cleaning equipment for recharging of battery power of the photovoltaic panel cleaning equipment is provided, in which the charging compartment includes a charging and stopping rack and a telescopic supporting rack. The charging and stopping rack is used for stopping a body and charging the body, and the telescopic supporting rack is used for supporting the charging and stopping rack. The charging and stopping rack and a photovoltaic panel to be cleaned are enabled and configured to be on a same plane by adjusting the angle of the charging and stopping rack. By adopting the charging compartment, the photovoltaic panel cleaning equipment is facilitated to allow the body to remain stationary while being together with the photovoltaic panels which are undergoing cleaning, as well as same time recharging battery power of the photovoltaic panel cleaning equipment.

Abstract: A cleaning mechanism having a self-locking function, comprising a cleaning rack, a cleaning member and a sweeping member, adapted for use on photovoltaic panel, is disclosed. The cleaning rack comprising a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod which are detachably connected. The cleaning member being detachably mounted between the first connecting rod and the third connecting rod, used for stripping off adhesive materials on photovoltaic panel; the sweeping member used for sweeping adhesive materials away from photovoltaic panel. Cleaning mechanism further comprises a cleaning member power unit, detachably connected with the cleaning member and used for driving cleaning member to rotate; and cleaning member power unit comprises a self-locking device, used for preventing cleaning member from idling, and sundries are prevented from being twisted thereon and meanwhile unnecessary wear between cleaning member and photovoltaic panel can be reduced.