Abstract: The present disclosure relates to the field of medicaments, and particularly to use of Liriodendron chinense (Hemsl.) Sarg, or an extract thereof in the preparation of a medicament for reducing a serum uric acid level and preventing and treating uric acid nephropathy, and belongs to the field of medicaments. In one aspect, the present disclosure provides use of Liriodendron chinense (Hemsl.) Sarg. or an extract thereof in the preparation of a medicament for reducing a serum uric acid level. In another aspect, the present disclosure further provides use of Liriodendron chinense (Hemsl.) Sarg. or an extract thereof in the preparation of a medicament for treating and/or preventing uric acid nephropathy.

Abstract: A wave energy power generation device includes a plurality of up-down moving mechanisms configured to move up and down along a spiral rod under the action of waves, a mass block arranged at a lower part of the power generation device; a buoyancy barrel arranged in the middle of the power generation device, a guide rail arranged on one side of the up-down moving mechanism, and a spiral rod. Through the interaction of the up-down moving mechanism and the spiral rod, the up-down movement of waves can be converted into rotational kinetic energy, a scroll spring is used for storing energy, then the rotating speed is stabilized through an escapement mechanism, a power generation assembly accelerates energy output, and finally a generator is driven to generate power.

Abstract: A mining vehicle for mining cobalt-rich crusts ore from the seabed includes a walking mechanism; a supporting arm, a crushing and collecting mechanism and a hydraulic circulation mechanism. The supporting arm is set on the walking mechanism, and a rotating structure is set at the connection between the supporting arm and the walking mechanism for realizing left-right rotation of the supporting arm; at the same time, the supporting arm can be realized to rotate up and down. The crushing and collecting mechanism is set at the front end of the hydraulic circulating mechanism for crushing the ores. The hydraulic circulating mechanism is set on the supporting arm and the walking mechanism, for collecting the ores, and for promoting flocculation and precipitation of the sediments, and for reducing the degree of particle diffusion.

Abstract: An in-situ stress measurement device for ultra-deep non-vertical drilling adopts a technical route of single channel and bidirectional rolling of in-hole equipment, and its related functions are mainly realized by a bidirectional rolling device and a split-type axial-force-free circuit switching valve. The bidirectional rolling device can drive the in-hole equipment to move freely in a circumferential direction and back and forth, which changes sliding friction between the in-hole equipment and a hole wall into rolling friction during an in-situ stress measurement of non-vertical drilling. The split-type axial-force-free circuit switching valve provides a technical solution for a single-pipe test in the non-vertical drilling.

Abstract: An in-situ stress measurement device for ultra-deep non-vertical drilling adopts a technical route of single channel and bidirectional rolling of in-hole equipment, and its related functions are mainly realized by a bidirectional rolling device and a split-type axial-force-free circuit switching valve. The bidirectional rolling device can drive the in-hole equipment to move freely in a circumferential direction and back and forth, which changes sliding friction between the in-hole equipment and a hole wall into rolling friction during an in-situ stress measurement of non-vertical drilling. The split-type axial-force-free circuit switching valve provides a technical solution for a single-pipe test in the non-vertical drilling.

Abstract: Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for providing network activity performance data in a content infrastructure. Instructions stored in the system or apparatus, when executed by processors, cause the processors to: identify a content item provided by a content provider device; calculate a set of keyword scores for the set of keywords, each keyword score calculated to measure a relationship between a semantic word cluster of the keyword and a semantic word cluster of an other content for which the content item was previously selected; determine an effect that a particular keyword of the set of keywords has on the online content selection process based on the set of keyword scores; generate a report indicating the effect that the particular keyword has on the online content selection process; and provide, via a network, the report to a client device.

Abstract: The present disclosure relates to the field of medicaments, and particularly to use of Liriodendron chinense (Hemsl.) Sarg. or an extract thereof in the preparation of a medicament for reducing a serum uric acid level and preventing and treating uric acid nephropathy, and belongs to the field of medicaments. In one aspect, the present disclosure provides use of Liriodendron chinense (Hemsl.) Sarg. or an extract thereof in the preparation of a medicament for reducing a serum uric acid level. In another aspect, the present disclosure further provides use of Liriodendron chinense (Hemsl.) Sarg. or an extract thereof in the preparation of a medicament for treating and/or preventing uric acid nephropathy. Animal experiments have confirmed that the Liriodendron chinense (Hemsl.) Sarg. can significantly reduce the serum uric acid level, and relieve degrees of renal tubular dilation, glomerulosclerosis, and renal interstitial fibrosis of hyperuricemic mice.

Abstract: An LED control circuit, comprising: an isolated DC-DC circuit having a first current loop and a voltage loop, said circuit being used for outputting a stable direct current voltage; and a buck circuit having a control unit; wherein the control unit is used for controlling the buck circuit to output constant current, so as to supply power to an LED load, and also used for controlling the buck circuit to not operate when the direct current voltage is less than a preset voltage, and controlling the buck circuit to operate when the direct current voltage is greater than or equal to the preset voltage.

Abstract: Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for providing network activity performance data in a content infrastructure. Instructions stored in the system or apparatus, when executed by processors, cause the processors to: identify a content item provided by a content provider device; calculate a set of keyword scores for the set of keywords, each keyword score calculated to measure a relationship between a semantic word cluster of the keyword and a semantic word cluster of an other content for which the content item was previously selected; determine an effect that a particular keyword of the set of keywords has on the online content selection process based on the set of keyword scores; generate a report indicating the effect that the particular keyword has on the online content selection process; and provide, via a network, the report to a client device.

Abstract: A system for a deep-sea planktonic microorganism in-situ concentration, temperature maintaining and pressure maintaining sampling is provided and includes a sampling cylinder body with double layer structures, the sampling cylinder body is provided with a plug-shaped inner cavity, the plug-shaped inner cavity is provided with a transfer water outlet and a water inlet connected to a water inlet component, the plug-shaped inner cavity is connected to an end cover, the plug-shaped inner cavity is connected to a filter part, the sampling cylinder body is provided with a sampling water outlet, the sampling water outlet is respectively connected to a pressure maintaining device and a water outlet pipe, a temperature maintaining material layer and a temperature control component are connected between the double layer structures, and the temperature control component is electrically connected to a controller. The system can complete sampling on the premise of maintaining in-situ pressure of samples.

Abstract: Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for advertisement keyword scoring. A processing circuit receives a request for an advertisement to be provided to a user during a user session. The advertisement is to be provided alongside other content that is associated with a first plurality of keywords. A processing circuit identifies a plurality of advertisements based on the first plurality of keywords. Each of the plurality of advertisements are associated with a second plurality of keywords. The processing circuit calculates a keyword score for each of the second plurality of keywords for each of the plurality of advertisements. Based on the keyword score, one of the keywords for each of the plurality of the plurality of advertisements is selected. Based on a comparison of the selected keywords, the advertisement to be provided to the user is selected.

Abstract: An LED drive circuit, comprising: a Flyback circuit that has a current-limiting mode and a constant-voltage mode, a non-isolated DC-DC circuit, and a control circuit. The control circuit is used to detect the output voltage of the Flyback circuit, and, when the output voltage of the Flyback circuit is greater than or equal to a first preset voltage value, control the Flyback circuit to operate in the constant-voltage mode; the control circuit is further used to detect the switch transistor current or output current of the Flyback circuit, and, when the output current of the Flyback circuit is greater than a first preset current value, control the Flyback circuit to operate in the current-limiting mode.

Abstract: An LED control circuit, comprising: an isolated DC-DC circuit having a first current loop and a voltage loop, said circuit being used for outputting a stable direct current voltage; and a buck circuit having a control unit; wherein the control unit is used for controlling the buck circuit to output constant current, so as to supply power to an LED load, and also used for controlling the buck circuit to not operate when the direct current voltage is less than a preset voltage, and controlling the buck circuit to operate when the direct current voltage is greater than or equal to the preset voltage.

Abstract: An LED drive circuit, comprising: a Flyback circuit that has a current-limiting mode and a constant-voltage mode, a non-isolated DC-DC circuit, and a control circuit. The control circuit is used to detect the output voltage of the Flyback circuit, and, when the output voltage of the Flyback circuit is greater than or equal to a first preset voltage value, control the Flyback circuit to operate in the constant-voltage mode; the control circuit is further used to detect the switch transistor current or output current of the Flyback circuit, and, when the output current of the Flyback circuit is greater than a first preset current value, control the Flyback circuit to operate in the current-limiting mode.

Abstract: A system for a deep-sea planktonic microorganism in-situ concentration, temperature maintaining and pressure maintaining sampling is provided and includes a sampling cylinder body with double layer structures, the sampling cylinder body is provided with a plug-shaped inner cavity, the plug-shaped inner cavity is provided with a transfer water outlet and a water inlet connected to a water inlet component, the plug-shaped inner cavity is connected to an end cover, the plug-shaped inner cavity is connected to a filter part, the sampling cylinder body is provided with a sampling water outlet, the sampling water outlet is respectively connected to a pressure maintaining device and a water outlet pipe, a temperature maintaining material layer and a temperature control component are connected between the double layer structures, and the temperature control component is electrically connected to a controller. The system can complete sampling on the premise of maintaining in-situ pressure of samples.

Abstract: Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for advertisement keyword scoring. A processing circuit receives a request for an advertisement to be provided to a user during a user session. The advertisement is to be provided alongside other content that is associated with a first plurality of keywords. A processing circuit identifies a plurality of advertisements based on the first plurality of keywords. Each of the plurality of advertisements are associated with a second plurality of keywords. The processing circuit calculates a keyword score for each of the second plurality of keywords for each of the plurality of advertisements. Based on the keyword score, one of the keywords for each of the plurality of the plurality of advertisements is selected. Based on a comparison of the selected keywords, the advertisement to be provided to the user is selected.

Abstract: Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for advertisement keyword scoring. A processing circuit receives a request for an advertisement to be provided to a user during a user session. The advertisement is to be provided alongside other content that is associated with a first plurality of keywords. A processing circuit identifies a plurality of advertisements based on the first plurality of keywords. Each of the plurality of advertisements are associated with a second plurality of keywords. The processing circuit calculates a keyword score for each of the second plurality of keywords for each of the plurality of advertisements. Based on the keyword score, one of the keywords for each of the plurality of the plurality of advertisements is selected. Based on a comparison of the selected keywords, the advertisement to be provided to the user is selected.

Abstract: The present disclosure discloses a drive circuit of a transistor, including: a high-voltage power supply and a low-voltage power supply; a high-voltage power supply domain circuit and a low-voltage power supply domain circuit, where the high-voltage power supply domain circuit is connected to the high-voltage power supply; an electrostatic discharge apparatus; a level shifter circuit, wherein the level shifter circuit includes a level detection circuit, a current limiting module, a discharge module, and a switch transistor, the level detection circuit is connected to a positive electrode of the high-voltage power supply and is separately connected to the current limiting module, the discharge module, and the high-voltage power supply domain circuit, the current limiting module is further connected to a first end of the switch transistor, the discharge module is further connected to a negative electrode of the high-voltage power supply, a control end of the switch transistor is connected to the low-voltage pow

Abstract: A wearable filtrating artificial kidney device, comprising a transfusion inlet (2), a blood pump (3), an arterial pressure detector (4), a blood filter (7), a venous pressure detector (8) and an air detector (9), wherein the transfusion inlet (2), the blood pump (3), the arterial pressure detector (4), a resin hemoperfusion apparatus (5), an active carbon hemoperfusion apparatus (6), the blood filter (7), the venous pressure detector (8) and the air detector (9) are connected sequentially; a liquid waste outlet of the blood filter (7) is connected with an ultrafiltration control pump (10). Glomerulus filtration can be simulated to achieve the goal of removing toxins and excessive moisture in the blood by virtue of ultrafiltration of the blood filter (7). A dialyzate and a complicated dialyzate circulating device are not used for the device, so that the volume and weight of the device can be reduced greatly, and the device can be worn conveniently.

Abstract: The present disclosure discloses a drive circuit of a transistor, including: a high-voltage power supply and a low-voltage power supply; a high-voltage power supply domain circuit and a low-voltage power supply domain circuit, where the high-voltage power supply domain circuit is connected to the high-voltage power supply; an electrostatic discharge apparatus; a level shifter circuit, wherein the level shifter circuit includes a level detection circuit, a current limiting module, a discharge module, and a switch transistor, the level detection circuit is connected to a positive electrode of the high-voltage power supply and is separately connected to the current limiting module, the discharge module, and the high-voltage power supply domain circuit, the current limiting module is further connected to a first end of the switch transistor, the discharge module is further connected to a negative electrode of the high-voltage power supply, a control end of the switch transistor is connected to the low-voltage pow