Abstract: Provided are a gas-replenishing and enthalpy-increasing control method, device and apparatus for a two-stage compressor. The method includes: when a gas-replenishing electronic expansion valve needs to be opened, gradually increasing, by a controller, an opening degree of the gas-replenishing electronic expansion valve in a time sequence; after the gas-replenishing electronic expansion valve is opened, acquiring a detected gas-replenishing superheat degree of a two-stage compressor; and adjusting, based on the gas-replenishing superheat degree of the two-stage compressor, the opening degree of the gas-replenishing electronic expansion valve, wherein the gas-replenishing electronic expansion valve is disposed between a medium-pressure liquid storage tank and the two-stage compressor, and when the opening degree of the gas-replenishing electronic expansion valve is not zero, a gaseous refrigerant in the medium-pressure liquid storage tank replenishes gas and increases enthalpy for the two-stage compressor.

Abstract: A liquid crystal composition comprises a compound of general formula I serving as a first component; a compound of general formula II-1 and/or general formula II-2 serving as a second component; a compound of general formula III serving as a third component; a compound of general formula IV serving as a fourth component; a compound of general formula V serving as a fifth component; and a compound of general formula VI serving as a sixth component. The liquid crystal composition has at least one characteristic among the characteristics of a large dielectric anisotropy, a large optical anisotropy, a high voltage holding ratio and a low threshold voltage and the like, and is suitable to be used in a liquid crystal display device. Additionally, a liquid crystal display device comprising the liquid crystal composition is also provided.

Abstract: A goggles system includes an inner frame dimensioned and contoured for positioning against a wearer's face with a plurality of interchangeable lens assemblies, where each lens assembly is removably attachable to the inner frame by an engagement mechanism that includes at least one tongue and groove attachment and at least one magnetic attachment. The lens(es) of each interchangeable lens assembly may be the same as or different from each other.

Abstract: A liquid crystal composition having a negative dielectric anisotropy and a liquid crystal display device comprising the same. The liquid crystal composition comprises: a first component comprising one or more compounds of formula I; a second component comprising two or more than two compounds of formula II; and a third component comprising one or more compounds of formula III.

Abstract: Provided herein is a compression system including a compressor, an intermediate air compensation pipeline, and an air compensation valve disposed on the intermediate air compensation pipeline. According to a flow direction of a refrigerant, a first pressure detection device and a first temperature detection device are disposed at the inlet end of the air compensation valve on the intermediate air compensation pipeline; a second temperature detection device is disposed at the outlet end of the air compensation valve. The system also includes a second pressure detection device and a third temperature detection device disposed on an exhaust pipeline of the compressor.

Abstract: A method far verifying accuracy of RTK tilt compensation measurement is provided by the present invention. By firstly collecting the central coordinates and subsequently collecting the compensation measurement points, the offset and the height difference of the measurement points are calculated in real time, recorded and displayed. The maximum and minimum errors of the compensation measurement points near a point location are automatically counted, and whether an accuracy of the tilt compensation measurement of the RTK equipment meets the designed requirement of accuracy is verified. Therefore, the requirements for the operators are minimized. The method of the present invention can be used to detect the accuracy of the tilt compensation measurement of the RTK equipment.

Abstract: Described is a two-stage compression air conditioning system and a method of controlling gas replenishment thereof. The two-stage compression air conditioning system includes a two-stage compressor and a flash evaporator, wherein a first port of the flash evaporator is connected to one end of a stop valve by a first pipeline and the other end of the stop valve is connected to a first gas intake of the two-stage compressor by a second pipeline. The method of controlling gas replenishment includes: obtaining a first temperature value and an intermediate pressure value in the first pipeline, and a second temperature value in the second pipeline; and controlling the stop valve according to the first temperature value, the intermediate pressure value and the second temperature value.

Abstract: A thigh support, a seat and a vehicle are provided. The thigh support includes a thigh-support fixing portion, a thigh-support moving portion, a thigh-support driving portion, and a thigh-support bracing portion disposed to the thigh-support fixing portion and located at a rear side of the thigh-support moving portion, in which the rear edge of the thigh-support moving portion is provided with a rear edge recessed portion recessed forwards, a front edge of the thigh-support bracing portion is formed with a front edge protruding portion protruding forwards, and the front edge protruding portion matches the rear edge recessed portion in shape. The seat and the vehicle have the above thigh support.

Abstract: The present disclosure provides a variable-capacity compressor, a variable-capacity two-stage compression system and a control method thereof. The compression system includes a compressor, wherein the compressor includes a low pressure cylinder and a high pressure cylinder connected in series, wherein the low pressure cylinder includes at least two cylinders connected in parallel. The compression system further includes a control mechanism that can control at least one of the at least two cylinders connected in parallel to perform full-load and/or no-load operation.

Abstract: Techniques for identifying relevance of a video are disclosed herein. In some embodiments, a computer-implemented method comprises: causing a video to be played on a device of a user; receiving, from the device, an instruction to share the video with another user, the instruction corresponding to a point-in-time in the video; identifying text in a transcript of the video based on the point-in-time; causing the identified text to be displayed on the device based on the instruction to share the video; receiving, from the device, an instruction to include user-approved text along with the video in the sharing of the video with the one or more other users, the user-approved text comprising at least a portion of the identified text; and causing the user-approved text to be displayed on a device of the other user in association with the video based on the instructions to share and include.

Abstract: There is provided a method, an apparatus, and a system for controlling service traffic between data centers. According to one exemplary method, an active data center and a standby data center that have a mutually redundant relationship are provided. At least one load balancing device is deployed in each of the active data center and the standby data center. In the case of switching from the active data center to the standby data center, service traffic transmitted to the active data center is guided to the standby data center, and the load balancing device in the standby data center allocates the service traffic.

Abstract: Aspects of the disclosure provide a method for linking input files during a linking process. The method includes receiving an input section that is to be mapped to a memory segment by a linker circuit, determining whether an out-of-memory (OOM) event occurs when an available memory space of the memory segment is unable to accommodate the input section, estimating a memory expansion size that would be required for the memory segment to be able to accommodate the input section when an OOM event occurs, and creating by the linker circuit a map file that includes the estimated memory expansion size of the memory segment.

Abstract: Provided herein is a compression system including a compressor, an intermediate air compensation pipeline, and an air compensation valve disposed on the intermediate air compensation pipeline. According to a flow direction of a refrigerant, a first pressure detection device and a first temperature detection device are disposed at the inlet end of the air compensation valve on the intermediate air compensation pipeline; a second temperature detection device is disposed at the outlet end of the air compensation valve. The system also includes a second pressure detection device and a third temperature detection device disposed on an exhaust pipeline of the compressor.

Abstract: Provided are a gas-replenishing and enthalpy-increasing control method, device and apparatus for a two-stage compressor. The method includes: when a gas-replenishing electronic expansion valve needs to be opened, gradually increasing, by a controller, an opening degree of the gas-replenishing electronic expansion valve in a time sequence; after the gas-replenishing electronic expansion valve is opened, acquiring a detected gas-replenishing superheat degree of a two-stage compressor; and adjusting, based on the gas-replenishing superheat degree of the two-stage compressor, the opening degree of the gas-replenishing electronic expansion valve, wherein the gas-replenishing electronic expansion valve is disposed between a medium-pressure liquid storage tank and the two-stage compressor, and when the opening degree of the gas-replenishing electronic expansion valve is not zero, a gaseous refrigerant in the medium-pressure liquid storage tank replenishes gas and increases enthalpy for the two-stage compressor,.

Abstract: Techniques for identifying relevance of a video are disclosed herein. In some embodiments, a computer-implemented method comprises: causing a video to be played on a device of a user; receiving, from the device, an instruction to share the video with another user, the instruction corresponding to a point-in-time in the video; identifying text in a transcript of the video based on the point-in-time; causing the identified text to be displayed on the device based on the instruction to share the video; receiving, from the device, an instruction to include user-approved text along with the video in the sharing of the video with the one or more other users, the user-approved text comprising at least a portion of the identified text; and causing the user-approved text to be displayed on a device of the other user in association with the video based on the instructions to share and include.

Abstract: Described is a two-stage compression air conditioning system and a method of controlling gas replenishment thereof. The two-stage compression air conditioning system includes a two-stage compressor and a flash evaporator, wherein a first port of the flash evaporator is connected to one end of a stop valve by a first pipeline and the other end of the stop valve is connected to a first gas intake of the two-stage compressor by a second pipeline. The method of controlling gas replenishment includes: obtaining a first temperature value and an intermediate pressure value in the first pipeline, and a second temperature value in the second pipeline; and controlling the stop valve according to the first temperature value, the intermediate pressure value and the second temperature value.

Abstract: The present disclosure provides a variable-capacity compressor, a variable-capacity two-stage compression system and a control method thereof. The compression system includes a compressor, wherein the compressor includes a low pressure cylinder and a high pressure cylinder connected in series, wherein the low pressure cylinder comprises at least two cylinders connected in parallel. The compression system further comprises a control mechanism that can control at least one of the at least two cylinders connected in parallel to perform full-load and/or no-load operation.

Abstract: A goggles system includes an inner frame dimensioned and contoured for positioning against a wearer's face with a plurality of interchangeable lens assemblies, where each lens assembly is removably attachable to the inner frame by an engagement mechanism that includes at least one tongue and groove attachment and at least one magnetic attachment. The lens(es) of each interchangeable lens assembly may be the same as or different from each other.

Abstract: Provided is a liquid crystal composition, comprising: 1-30% of one or more compounds of general formula I; 1-50% of one or more compounds of general formula II; 1-20% of one or more compounds of general formula III; 20-70% of one or more compounds of general formula IV; and 1-30% of one or more compounds of general formula V. The liquid crystal composition has properties such as a large maximum absolute transmittance, a high voltage holding ratio, better anti-UV properties, and high temperature reliability, and has a suitable optical anisotropy, a suitable dielectric anisotropy, and a relatively high clearing point, and is environmentally friendly.

Abstract: Provided is a liquid crystal composition, comprising: one or more compounds of general formula I accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula II accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula III accounting for 1-20% of the total weight of the liquid crystal composition; and one or more compounds of general formula IV accounting for 30-80% of the total weight of the liquid crystal composition. The liquid crystal composition has at least one of the following properties: a large specific resistance, a high voltage holding ratio, a suitable optical anisotropy, a large dielectric anisotropy, a small viscosity, a low threshold voltage, etc., and is also green and environmentally friendly.