Abstract: A method for preparing V-type porous starch includes: mixing starch and a first ethanol solution in a reaction kettle, adding concentrated hydrochloric acid to the reaction kettle for acidity regulation, and controlling a temperature of a reaction system in the reaction kettle at 80-150° C.; cooling the reaction kettle, and adding a sodium hydroxide solution to the reaction system in the reaction kettle, until a pH of a mixture in the reaction kettle is neutral, to yield a starch solution; and centrifuging the starch solution, washing a collected precipitate with a second ethanol solution, leaching, drying, cooling, and pulverizing, to yield V-type porous starch.

Abstract: Provided is a fried food preparation system, which relates to the technical field of food equipment. The fried food preparation system includes a food dispenser assembly, a manipulator arm assembly, a deep fryer assembly and a frying basket. The deep fryer assembly and the food dispenser assembly are respectively arranged in parallel on both sides of the manipulator arm assembly, wherein the manipulator arm assembly is connected with the frying basket and makes the frying basket move in a plane formed by a first direction and a second direction.

Abstract: Provided is a movable electro-hydraulic composite drive spraying robot with a large working space, comprising movable bases, there being a plurality of movable bases cooperatively arranged for bearing a drive rope adjustment module, profile supporting columns in the driving rope adjusting module respectively being fixed on the movable bases, the plurality of movable bases encircling an operating space, a adjustable auxiliary motion platform that is movable being erected in the operating space, a rotary motion platform being arranged below the adjustable auxiliary motion platform, the adjustable auxiliary motion platform and the rotary motion platform being connected by means of a hydraulic push rod, the bottom end surface of the rotary motion platform being provided with a spray gun, and a balance mechanism and a fixed support mechanism for balancing the traction force of the rope and maintaining the balance of the mechanism also being mounted on the movable bases.

Abstract: The present invention discloses a Micro-Electro-Mechanical System MEMS) chip including a substrate with a back cavity; a capacitance system disposed on the substrate including a back plate, a membrane opposite to the back plate forming an inner cavity; a protruding portion accommodated in the inner cavity, fixed on one of the back plate and the membrane and spaced apart from the other along a vibration direction; a reinforce portion fixed to the membrane, having an area smaller than that of the membrane; a support system configured to support the capacitance system, including a first fixation portion suspending the membrane on the substrate, and a second fixation portion suspending the back plate on the substrate. The MEMS chip has higher sensitivity, higher resonance frequency and higher low frequency property.

Abstract: The present invention discloses a MEMS chip including a substrate with a back cavity; a capacitance system disposed on the substrate including a back plate, a membrane opposite to the back plate forming an inner cavity; a protruding portion accommodated in the inner cavity, fixed on one of the back plate and the membrane and spaced apart from the other along a vibration direction; a support system configured to support the capacitance system, including a first fixation portion suspending the membrane on the substrate, and a second fixation portion suspending the back plate on the substrate; the protruding portion comprises an annular first protruding portion and an annular second protruding portion surrounding the first protruding portion. The MEMS chip has higher sensitivity, higher resonance frequency and higher low frequency property.

Abstract: An electronic device such as a voice-controlled speaker may have an array of strain gauges and light-emitting diodes. The light-emitting diodes may be configured to display dynamically adjustable button icons overlapping the strain gauges. Force measurements from the strain gauges may be used to adjust speaker output and other device operations.

Abstract: A battery, a power consuming apparatus, and a method for manufacturing a battery are disclosed. The battery includes a case, at least one row of battery cells, and a support member, where an accommodation space is formed inside the case; the at least one row of battery cells is arranged in the accommodation space, and each row of battery cells includes at least two battery cells arranged opposite each other in a first direction; and the support member extends in the first direction, and two ends of the support member are fixed to the case. The support member is arranged in the case, and an extending direction of the support member is the same as that of one row of battery cells, such that interference between the support member and the battery cell can be avoided. The two ends of the support member are fixed to the case.

Abstract: A key-value store and a file system are integrated together to provide improved operations. The key-value store can include a log engine, a hash engine, a sorting engine, and a garbage collection manager. The features of the key-value store can be configured to reduce the number of I/O operations involving the file system, thereby improving read efficiency, reducing write latency, and reducing write amplification issues inherent in the combined key-value store and file system.

Abstract: Systems and methods are provided for improved point querying of a database. The index values are separated from data and retained in cache memory to allow access without requiring a disk input/output (I/O) operation and thereby having less latency resulting from such disk I/O operations. The index values can be compressed using an algorithm such as Crit-Bit-Trie to allow storage of the index values in limited cache memory space. The index values can be selected for storage according to a least recently used approach when cache memory is insufficient to store all index values to maintain a hit rate for the cached portion and reduce the disk I/O operations.

Abstract: The fuel cell control system includes: a reactor; an air compressor, wherein the air compressor has a compressing cavity, the compressing cavity has a gas inlet and a gas outlet, a rotatable pressure wheel is disposed inside the compressing cavity, and the gas outlet is in communication with the reactor; a control flow channel, wherein a first end of the control flow channel is in communication with the gas-intake side of the pressure wheel, a second end of the control flow channel is in communication with the wheel-back side of the pressure wheel, and the control flow channel is provided with a return valve for regulating the flow rate of the control flow channel; and a central control unit, wherein the central control unit is communicatively connected to the return valve to control the opening degree of the return valve.

Abstract: The present disclosure provides an information processing method and apparatus, an electronic device, and a storage medium. The information processing method includes: displaying a first control in an associated page of a first recruitment item, and determining a target person and creating a first communication group in response to a trigger operation on the first control, where the first communication group is associated with a recruitment progress of the target person in the first recruitment item; and generating a first type of notification message according to a progress event and sending the same to the first communication group, in response to generating the progress event of a recruitment process for the target person in the first recruitment item, wherein the target person is a candidate of the first recruitment item. This embodiment may facilitate follow-up of the recruitment progress of the target person.

Abstract: The present application belongs to the technical field of a lamp, and, relates to a 3D-pattern waving projecting lamp. The 3D-pattern waving projecting lamp includes a lamp shell assembly, a control circuit board, a first rotating assembly, and a 3D-pattern projecting assembly. A 3D-pattern imaging assembly includes a first light source, a first convex lens, a second convex lens, a third convex lens, and a first pattern sheet. The first pattern sheet forms a light spot and forms a light pattern. The second convex lens is arranged on the first rotating assembly and located on a side of the first pattern sheet towards the first convex lens. The second convex lens receives the light pattern and generates an analog 3D pattern.

Abstract: The air compressor includes: a housing assembly, wherein the housing assembly has a first installation cavity, a second installation cavity and a rotation-shaft cooperating cavity, and the first installation cavity has a gas inlet and a gas outlet; a rotor shaft, wherein the rotor shaft is rotatably fitted inside the rotation-shaft cooperating cavity, and extends into the first installation cavity and the second installation cavity; a pressure wheel, wherein the pressure wheel is nested to the rotor shaft and is located inside the first installation cavity, and the housing assembly is provided with a controlling flow channel for communicating the gas-intake side and the wheel-back side of the pressure wheel; and a driving assembly, wherein the driving assembly is nested to the rotor shaft and is located inside the second installation cavity.

Abstract: The fuel cell control system includes: a reactor; an air compressor, wherein the air compressor has a compressing cavity, the compressing cavity has a gas inlet and a gas outlet, a rotatable pressure wheel is disposed inside the compressing cavity, and the gas outlet is in communication with the reactor; a control flow channel, wherein a first end of the control flow channel is in communication with the gas-intake side of the pressure wheel, a second end of the control flow channel is in communication with the wheel-back side of the pressure wheel, and the control flow channel is provided with a return valve for regulating the flow rate of the control flow channel; and a central control unit, wherein the central control unit is communicatively connected to the return valve to control the opening degree of the return valve.

Abstract: Mi-2? inhibitors and methods of using the same are disclosed. The methods comprise administering an effective amount of a Mi-2? inhibitor to the subject or contacting a cancer cell or a tumor with an effective amount of a Mi-2? inhibitor.

Abstract: An electrical luminaire receives an AC supply as well as an auxiliary power supply. A power converter converts the AC power to supply a lighting element. A power factor associated with the AC supply is used as a control input for selecting an amount of power to be supplied from the two supplies. This enables the overall power factor to be controlled, for example to avoid financial penalties associated with the use of the AC supply with low power factor.

Abstract: A flexible-rope-driven hybrid spray painting robot mechanism includes a static platform framework, a flexible-rope-guided pulley train, flexible transmission ropes, a moving platform, and drive mechanisms. A moving platform casing is driven by eight flexible ropes in parallel, to realize three degrees of freedom of translation thereof. A spray gun is connected in series to the moving platform casing via a universal joint cross, and is driven by four flexible ropes in parallel, to realize two degrees of freedom of rotation thereof. Beneficial technical effect of the present invention: The flexible ropes are used in parallel to control three degrees of freedom of translation and two degrees of freedom of rotation of the end spray gun, achieving advantages of a small movement inertia and flexible movement. Electric drive devices are placed together in a bottom layer of the static platform framework and are isolated from a spraying space.

Abstract: The present disclosure relates to a rope traction type grinding, cleaning, and coating integrated operation robot. The operation robot includes a hanging basket, a first traction mechanism connected to the hanging basket, a grinding mechanism arranged in front of the hanging basket, and a cleaning and spraying mechanism and a spring reaction force regulation mechanism arranged in the hanging basket. The first traction mechanism includes first ropes for connecting the hanging basket and first rope winding mechanisms. The cleaning and spraying mechanism includes a first vertical plate and a second vertical plate that are arranged in parallel in a vertical direction. A cleaning nozzle and a spraying nozzle are mounted on the first vertical plate. From the above technical solution, it can be seen that the operation robot adopts a rope traction manner, and has the advantages of large work space, low mechanism inertia, and accurate and reliable location.

Abstract: A flexible-rope-driven hybrid spray painting robot mechanism includes a static platform framework, a flexible-rope-guided pulley train, flexible transmission ropes, a moving platform, and drive mechanisms. A moving platform casing is driven by eight flexible ropes in parallel, to realize three degrees of freedom of translation thereof. A spray gun is connected in series to the moving platform casing via a universal joint cross, and is driven by four flexible ropes in parallel, to realize two degrees of freedom of rotation thereof. Beneficial technical effect of the present invention: The flexible ropes are used in parallel to control three degrees of freedom of translation and two degrees of freedom of rotation of the end spray gun, achieving advantages of a small movement inertia and flexible movement. Electric drive devices are placed together in a bottom layer of the static platform framework and are isolated from a spraying space.

Abstract: The present disclosure relates to a rope traction type grinding, cleaning, and coating integrated operation robot. The operation robot includes a hanging basket, a first traction mechanism connected to the hanging basket, a grinding mechanism arranged in front of the hanging basket, and a cleaning and spraying mechanism and a spring reaction force regulation mechanism arranged in the hanging basket. The first traction mechanism includes first ropes for connecting the hanging basket and first rope winding mechanisms. The cleaning and spraying mechanism includes a first vertical plate and a second vertical plate that are arranged in parallel in a vertical direction. A cleaning nozzle and a spraying nozzle are mounted on the first vertical plate. From the above technical solution, it can be seen that the operation robot adopts a rope traction manner, and has the advantages of large work space, low mechanism inertia, and accurate and reliable location.