Abstract: A system receives a source database language statement according to a first dialect, determines a pattern of the source database language statement, the pattern comprising an abstract representation of the source database language statement, and checks whether the determined pattern is present in a cache of translations between patterns according to the first dialect and corresponding patterns according to a second dialect different from the first dialect. In response to the determined pattern being present in the cache of translations, the system converts, using a corresponding translation in the cache of translations, the source database language statement according to the first dialect to a respective target database language statement according to the second dialect.

Abstract: The present disclosure discloses a solid amine material absorbing CO2, preparation method, and application thereof, including a porous carrier and water-resistant organic amine loaded on the porous carrier. The water-resistant organic amine includes a biomass-derived polyhydroxyl compound, hydrophilic organic amine and hydrophobic organic amine combined with the biomass-derived polyhydroxyl compound at the same time. The biomass-derived polyhydroxyl compound comprises a six-membered ring structure, with good water resistance and CO2 adsorption effect.

Abstract: The present disclosure provides a storage control method, including: sending a command acquisition request for at least one first queue, where the at least one first queue is a queue among a plurality of queues which accumulates at least one queue request message, and a command acquisition request for each first queue of the at least one first queue corresponds to all accumulated queue request messages of the first queue; and receiving a storage command for each first queue in the at least one first queue.

Abstract: A photoelectric computing unit, a photoelectric computing array and a photoelectric computing method. The photoelectric computing unit includes a semiconductor multifunctional region structure, which includes at least one carrier control region, at least one coupling region, and at least one photon-generated carrier collection region and readout region.

Abstract: An ultrasonic generation device and a concrete forming system are provided. The ultrasonic generation device includes a housing, a rotary vibration member, and a shaft body. The housing is provided with an air inlet. The rotary vibration member is disposed in the housing. The shaft body is relatively fixed to the housing, the rotary vibration member is sleeved on the shaft body, and the rotary vibration member and the shaft body are rotatable relative to each other. The shaft body is provided with a main air passage and a jet hole, a first end of the main air passage is in communication with the air inlet and a second end of the main air passage is in communication with the jet hole, the jet hole is provided in the shaft body at a position corresponding to the rotary vibration member.

Abstract: An interpupillary distance adjusting device applied to VR glasses, the VR glasses include bracket body, first and second lens modules, the device includes driving module fixed to the bracket body and located between the first and second lens modules. The driving module is configured to drive the first and second lens modules to move towards or away from each other to realize interpupillary distance adjustment. The driving module includes frame, driving unit, first and second gear members, first and second racks parallel to each other. An end of the first rack is fixed to the first lens module, an end of the second rack is fixed to the second lens module. Compared with the related art, the interpupillary distance adjusting device can automatically and synchronously adjust the interpupillary distance, with high adjustment accuracy, small volume occupation, high driving efficiency, high stability, and good user experience.

Abstract: An amine-functionalized adsorbent and a method for preparing the same are provided. The amine-functionalized adsorbent includes a metal-organic framework (MOF) material and polymeric amine, the crystal structure of the MOF material is a three-dimensional cage-like pore structure, and the polymeric amine is loaded inside the three-dimensional cage-like pore structure. The amine-functionalized adsorbent has high adsorption capacity and rapid adsorbing speed of carbon dioxide at room temperature.

Abstract: A lens driving module includes first and second bases, a bottom base, a reset assembly, a PCB, first and second driving assemblies respectively driving first base to rotate about a first axis and second base to rotate about a second axis, and a lens mounted on the first base. The reset assembly includes reset members provided at two opposite sides of the bottom base along the first axis or the second axis. Each reset member includes first to third connection portions, a first elastic arm connected between first and second connection portions and configured to reset the first base, and a second elastic arm connected between second and third connection portions and configured to reset the second base. The first to third connection portions are respectively connected to first and second bases and bottom base, respectively. The lens driving module has a simplified structure, compact size, and improved stability.

Abstract: Disclosed are a time delay integration (TDI)-based image sensor and an imaging method thereof. The TDI-based image sensor includes: a multi-stage linear array including a plurality of single-stage linear arrays arranged along a scanning direction of the image sensor. Each single-stage linear array includes a plurality of pixels arranged along the linear array direction. Each single-stage linear array enters a count mode in response to a first control signal, and enters a transfer mode in response to a second control signal. In the count mode, each single-stage linear array counts optical signals incident on the pixels and obtains a count value, and in the transfer mode, each single-stage linear array stops counting, except for the last single-stage linear array, other single-stage linear arrays each output the obtained current count value to the next single-stage linear array, and the last single-stage linear array outputs the obtained current count value.

Abstract: A lens driving device includes a lens module, a first support frame, a second support frame sleeved on the first support frame, a support assembly for suspending the first support frame inside the second support frame, a first flexible printed circuit board (PCB) including folding portions, a second flexible PCB opposite to and independent from the first flexible PCB, and a driving assembly. Each folding portion includes a first fixing portion attached to the first support frame, a second fixing portion attached to the shell, and bent portions connecting the first fixing portion with the second fixing portion by bending. The two flexible PCBs are separately provided in the lens driving device to prevent the risk of disengagement when the two flexible PCBs move, and the folding portions prevent the first flexible PCB from being pulled by the movement of the lens module to be disconnected.

Abstract: A high strength and toughness die-casting aluminum alloy without heat treatment, a preparation method and an article thereof are provided. Aluminum alloy includes the following components in percentage by mass: 7.0-10.0 wt. % of silicon, not more than 0.05 wt. % of copper, not more than 0.4 wt. % of magnesium, 0.3-0.7 wt. % of manganese, not more than 0.2 wt. % of iron, not more than 0.07 wt. % of zinc, not more than 0.2 wt. % of titanium, 0.015-0.03 wt. % of strontium, 0.01-0.1 wt. % of vanadium, 0.01-0.1 wt. % of zirconium, and other unavoidable impurity elements, each not more than 0.05 wt. %. The total amount of other unavoidable impurity elements is not more than 0.25 wt. %, and the rest is aluminum.

Abstract: A lens module includes a base, a lens assembly, a bearing member including fixing and rotating frames, a shape memory alloy wire assembly including first and second shape memory alloy (SMA) wires, and at least one first and second wire-binding clamp members. The first SMA wires drive rotating frame to rotate relative to base about a first direction, and the second SMA wires drive the fixing frame to rotate relative to the rotating frame about a second direction. The first and second directions are perpendicular to each other and perpendicular to optical axis of the lens assembly. The rotating frame includes first and second rotating side plates. Each first wire-binding clamp member is connected to two first SMA wires, and each second wire-binding clamp member is connected to two second SMA wire. The lens module has low cost and occupies a small space, and the magnetic interference can be avoided.

Abstract: A high strength and toughness die-casting aluminum alloy without heat treatment, a preparation method and an article thereof are provided. Aluminum alloy includes the following components in percentage by mass: 7.0-10.0 wt. % of silicon, not more than 0.05 wt. % of copper, not more than 0.4 wt. % of magnesium, 0.3-0.7 wt. % of manganese, not more than 0.2 wt. % of iron, not more than 0.07 wt. % of zinc, not more than 0.2 wt. % of titanium, 0.015-0.03 wt. % of strontium, 0.01-0.1 wt. % of vanadium, 0.01-0.1 wt. % of zirconium, and other unavoidable impurity elements, each not more than 0.05 wt. %. The total amount of other unavoidable impurity elements is not more than 0.25 wt. %, and the rest is aluminum.

Abstract: A limiting mechanism is provided, including: a base; a first bearing; a turntable; and a limiting assembly. The base includes a base body and a through hole passing through the base body and having a circle shape. The first bearing is mounted in the through hole and forming a fixing connection with the base body. The turntable includes a turntable body and a shifting lever. The shifting lever rotates to the limiting portion until the limiting portion is pressed against and the limiting portion is driven to move, so that the limiting portion abuts against the limiting surface on the corresponding side to realize limiting. The limiting mechanism not only has fewer actions and has a simple structure, but also occupies a small space, has high reliability, and can reduce generation of noise.

Abstract: The present application provides a force feedback device, including a base; a button assembly, comprising a button body, a button formed by protruding and extending the button body away from the base, a first rotary shaft connected to one side of the button body close to the base and rotatably connected to the base, and a swing rod formed by extending on one side of the button body close to the base and rotatably connected to the first rotary shaft; a driving assembly including a driving unit fixed to one side of the base and an output shaft connected to the driving unit; a gear assembly rotatably arranged on the base. One end of the gear assembly is connected to the output shaft, and the other end thereof is connected to the swing rod.

Abstract: An ultrasonic generation device and a concrete forming system are provided. The ultrasonic generation device includes a housing, a rotary vibration member, and a shaft body. The housing is provided with an air inlet. The rotary vibration member is disposed in the housing. The shaft body is relatively fixed to the housing, the rotary vibration member is sleeved on the shaft body, and the rotary vibration member and the shaft body are rotatable relative to each other. The shaft body is provided with a main air passage and a jet hole, a first end of the main air passage is in communication with the air inlet and a second end of the main air passage is in communication with the jet hole, the jet hole is provided in the shaft body at a position corresponding to the rotary vibration member.

Abstract: A limiting mechanism is provided, including: a base; a first bearing; a turntable; and a limiting assembly. The base includes a base body and a through hole passing through the base body and having a circle shape. The first bearing is mounted in the through hole and forming a fixing connection with the base body. The turntable includes a turntable body and a shifting lever. The shifting lever rotates to the limiting portion until the limiting portion is pressed against and the limiting portion is driven to move, so that the limiting portion abuts against the limiting surface on the corresponding side to realize limiting. The limiting mechanism not only has fewer actions and has a simple structure, but also occupies a small space, has high reliability, and can reduce generation of noise.

Abstract: A limiting mechanism includes: a base, a first bearing, a turntable, and a rocker assembly. The base includes a base body and a through hole. The first bearing is mounted in the through hole. The turntable includes a turntable body and a shifting lever. The rocker assembly includes a second bearing, a rocker, a slider, an elastic member, a movable magnet, and a fixed magnet. Two opposite sides of the base body corresponding to the slider are respectively provided with limiting portions evenly spaced from the slider. The shifting lever is limited through the slider and the limiting portion. The limiting mechanism of the present disclosure not only has fewer actions and has a simple structure, but also occupies a small space, has high reliability, and can reduce generation of noise.

Abstract: An elastic block limiting mechanism includes: a base, a first elastic limiting assembly, a second elastic limiting assembly, a turntable and a bearing. The first elastic limiting assembly includes a first elastic member and a first elastic block. The second elastic limiting assembly includes a second elastic member and a second elastic block. The turntable includes a ring-shaped turntable body and a shifting lever. The bearing is mounted in a through hole and fixed to the base body, the turntable body being inserted into the bearing and forming a fixation to achieve a rotational connection with the base body. Compared with the related art, the elastic block limiting mechanism of the present disclosure has a simple structure, small space occupation, good stability, effective noise reduction, and high reliability.

Abstract: In one set of embodiments, a Virtual Desktop Infrastructure (VDI) client running on a client device can receive first client-side data from a client telemetry service, where the first client-side data includes information pertaining to a current state of the client device. The VDI client can further retrieve second client-side data including information pertaining to the VDI client and/or a VDI session established between the VDI client and a VDI agent running on a server system, and can aggregate the first client-side data and the second client-side data to produce aggregated client-side data. The VDI client can then transmit the aggregated client-side data to the VDI agent.