Abstract: A movable medical bed system may include a bed body and a power supply apparatus. The power supply apparatus may include an electrical energy receiver and an electrical energy transmitter. The electrical energy receiver is arranged on the bed body. The electrical energy transmitter is configured to be connected to a power source. The bed body is able to move to a working position relative to the electrical energy transmitter. When the bed body is located at the working position, the electrical energy receiver can engage in electrical energy transmission with the electrical energy transmitter without plugging-in. The movable medical bed system helps to make the supply of power more convenient.

Abstract: A multi-way valve includes a valve seat and a valve core. The valve core is rotatably disposed in the valve seat, the valve seat is provided with a plurality of valve port groups, each valve port group includes a plurality of valve ports, the valve core is provided with communication structure groups corresponding to the valve port groups, respectively, and each of the communication structure groups further includes a plurality of communication structures arranged along a circumferential direction of the valve core. When the valve core is rotated to different rotation positions, valve ports in different valve port groups form different communication states. Only one valve core is required to make a two-way proportional valves, three-way proportional valve, and a four-way proportional valve achieve different communication states, with simple control, compact structure and low cost.

Abstract: The present disclosure relates to the technical field of chemical engineering, and specifically discloses a method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number. A reaction-extraction combined process is used in this method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number, wherein the Fischer-Tropsch oil (C5-C20) is firstly subjected to alkaline washing with an alkaline aqueous solution to convert acidic substances into water-soluble salts. The Fischer-Tropsch oil is subjected to a primary extraction with a carbonate-based extractant to remove alcohols and esters therein, and subsequently subjected to a secondary extraction with propylene carbonate to remove ketones and aldehydes impurities therein, thereby removing oxygenated compounds in the Fischer-Tropsch oil. After extraction, the content of the oxygenated compounds in the Fischer-Tropsch oil may be down to 1-60 ppm, and the yield of oil product may be kept 90% or more.

Abstract: The present disclosure relates to a static cone penetration test device. The device includes a housing, an optical window and a friction cylinder coaxially connected. Light sources are mounted in the optical window and a static cone penetration assembly is disposed in the friction cylinder to detect a resistance the device suffers when the device is pressed into soil. An optical fiber sensor, a wireless transceiver, a data processing chip and a power supply are disposed in the housing. The optical fiber sensor is used to receive the reflected light of a target object and output spatial position information and spectrum information. The wireless transceiver is used to upload test data and receive a control signal. The data processing chip is used to analyze the test data. The present disclosure has the advantages of compact structure, high spectral resolution, quick imaging speed, and strong immunity to interference.

Abstract: The present disclosure relates to the field of rock soil detection and in particular to a multi-probe nuclear magnetic resonance (NMR) rock soil in-situ monitoring system, which includes a multi-probe component, a spectrograph component, an industrial control computer and a power cable. The multi-probe component includes a shell and multiple nuclear magnetic probes disposed inside the shell. The multiple nuclear magnetic probes are respectively located at the soil layers of different depths and have different measurement frequencies. The spectrograph component is used to transmit and receive NMR-measured radio frequency signals, the industrial control computer is used to transmit a measurement instruction and perform real-time processing on the measurement data, and the power cable is connected with the multiple nuclear magnetic probes, the spectrograph component and the industrial control computer to supply power and transmit the measurement data.

Abstract: The present disclosure relates to a static cone penetration test device. The device includes a housing, an optical window and a friction cylinder coaxially connected. Light sources are mounted in the optical window and a static cone penetration assembly is disposed in the friction cylinder to detect a resistance the device suffers when the device is pressed into soil. An optical fiber sensor, a wireless transceiver, a data processing chip and a power supply are disposed in the housing. The optical fiber sensor is used to receive the reflected light of a target object and output spatial position information and spectrum information. The wireless transceiver is used to upload test data and receive a control signal. The data processing chip is used to analyze the test data. The present disclosure has the advantages of compact structure, high spectral resolution, quick imaging speed, and strong immunity to interference.

Abstract: A large-space high-temperature and high-pressure true triaxial flexible loading device includes a cylinder reaction frame, which includes a cylinder, a lower shear ring, an upper shear ring, a bottom cover, and a top cover, wherein the bottom cover and the top cover are detachably mounted at a bottom and a top inside the cylinder respectively, and an interior of the cylinder is divided to form a loading space for performing a triaxial test on a square test block; the lower shear ring is detachably embedded on an inner wall of the cylinder below the bottom cover; the upper shear ring is detachably embedded on the inner wall of the cylinder above the top cover; a confining pressure reaction frame, mounted in the loading space around the square test block; and, flexible loading mechanisms, disposed in pairs at two opposed side surfaces of the square test block.

Abstract: A hospital bed may include a bed frame, a first bed board and an auxiliary component. The first bed board is connected to the bed frame. The auxiliary component may include a connecting frame, a first moving and supporting mechanism and a second bed board. The connecting frame is detachably connected to the first bed board. The first moving and supporting mechanism is connected to the connecting frame. The second bed board is connected to the first moving and supporting mechanism and can carry an object along the bearing direction. The second bed board is arranged on one side of the first bed board along the bearing direction. The first moving and supporting mechanism can drive the second bed board to move relative to the first bed board along an adjustment direction, where the adjustment direction is perpendicular to the bearing direction.

Abstract: The present disclosure provides an ?-olefin extractant and a method for separating an alkane and an ?-olefin, wherein the ?-olefin extractant comprises an alcohol-amine, a saturated monoketone having a carbon chain length of 7-10 and a monovalent salt of a Group IB metal, wherein the alcohol-amine, the saturated monoketone having a carbon chain length of 7-10 and the monovalent salt of a Group IB metal are in a mass ratio of (0.9-2.0):(0.8-1.5):(0.1-0.6). In the present disclosure, the technical principle of complexing extractive rectification is utilized and achieves the purpose of separating an olefin from an alkane by adding a complexing extractant to form a relatively stable complex between a metals and the olefin. The present disclosure has advantages of good separation effect and high product yield.

Abstract: The disclosure relates to a multi-probe NMR rock soil in-situ monitoring method, which includes: placing a multi-probe component to a target layer in a soil drill hole, where the multi-probe component includes NMR probes respectively located at the soils at different depths and having different measurement frequencies; performing in-situ NMR measurement on soils at different depths at the same time; by using a spectrometer component, receiving measurement signals from all NMR probes and performing frequency mapping analysis to distinguish NMR raw measurement data collected by each NMR probe; by using the spectrometer component, transmitting the raw measurement data to an industrial control computer to perform an inversion processing on the measurement data of the NMR probes and obtain T2 distribution mapping of the soils at different positions; based on the T2 distribution mapping, obtaining a water ratio of soil, a soil-water characteristics curve, soil non-homogeneity information and oil pollutant informati

Abstract: A method of identifying and recognizing characters using a dual-stage neural network pipeline, the method including: receiving, by a computing device, image data; providing the image data to a first convolutional layer of a convolutional neural network (CNN); applying, using the CNN, pattern recognition to the image data to identify a region of the image data containing text; providing sub-image data comprising the identified region of the image data to a convolutional recurrent neural network (CRNN); and recognizing, using the CRNN, the characters within the sub-image data.

Abstract: A multiphase flow cylindrical model test system includes a loading structure, a multiphase flow displacement model bucket, a data acquisition and analysis system, a flexible seepage model bucket and a dynamic control system. A multi-parameter test method in the displacement process of pollutants in three-dimensional multi-field and multiphase media is reasonably configured based on the sequential and superimposed application requirements of heat and steam in the thermal enhanced soil vapor extraction process.

Abstract: An expansion tank for a vehicle cooling system and a vehicle cooling system. The expansion tank includes a tank body and a chamber provided inside the tank body, a liquid inlet and a liquid outlet are provided on the tank body, a diversion channel matched with a bottom of the tank body is provided inside the tank body, both ends of the diversion channel are respectively connected with the liquid inlet and the liquid outlet, a vent hole and a liquid refill hole are sequentially provided on a side of the diversion channel in a flow direction of a coolant liquid, and the vent hole and the liquid refill hole are both communicated with the chamber.

Abstract: An optical-path calibration module is provided. The optical-path calibration module defines a first light inlet, a second light inlet, and a first light outlet, and a first light-splitting device is disposed in the optical-path calibration module. The first light inlet is configured to receive a calibration beam of a calibration light-source or be closed. The second light inlet is configured to receive a target-light-source beam or the calibration beam from the calibration light-source. The first light outlet is configured to emit a detection beam to a photoelectric sensor. An angle of 45° is defined between the first light-splitting device and each of the first light inlet and the second light inlet.

Abstract: A composite polyester hot-melt adhesive, a preparation method thereof and a preparation method of an anti-scouring geotextile are provided. The preparation method of the composite polyester hot-melt adhesive includes the following steps: performing an esterification reaction on a dibasic acid and a dihydric alcohol under a protection of nitrogen and an action of a titanium/cobalt composite catalyst, adding a stabilizer for a polycondensation reaction to obtain a polyester hot-melt adhesive, then adding polymethyl methacrylate (PMMA) microspheres for mixing and stirring to obtain the composite polyester hot-melt adhesive. The anti-scouring geotextile is obtained by bonding a polyethylene terephthalate woven fabric with a polypropylene geotextile by the composite polyester hot-melt adhesive.

Abstract: A method describes that a lost first block in a first stripe is directly reconstructed based on a first result obtained from a target quantity of storage devices, so that there is no need to read an unlost block in the first stripe. The first block may be reconstructed provided that the target quantity of first results are obtained. An amount of data of the first result is less than that of the unlost block in the first stripe. Therefore, a data transmission process occupies less network bandwidth, and this improves block reconstruction performance.

Abstract: The present invention provides a testing device and method for interface mechanical parameters of natural gas hydrated soil. The interface mechanical parameter testing device for natural gas hydrated soil includes a reaction kettle, a rotating power mechanism, a sample loading mechanism, a pressure mechanism, an atmosphere regulating mechanism, and a temperature regulating mechanism. The testing method for interface mechanical parameters of hydrated soil containing natural gas is implemented based on this device. It can improve the accuracy and reliability of mechanical parameters at the interface of hydrated soil containing natural gas.

Abstract: An alarm device for an MRI system may include a body, an operating member, a generator, a power manager and a signal emitter. The operating member may be movably connected to the body. The generator may be connected to the operating member and can convert kinetic energy of motion of the operating member to electrical energy. The power manager may be connected to the generator and can convert electrical energy generated by the generator to an output current. The signal emitter may be connected to the power manager and can use energy obtained from the output current to send a trigger signal wirelessly. Advantageously, the alarm device does not need an external power supply and has a high level of reliability.

Abstract: A flexible gastight material for a landfill site includes a component A and a component B, the component A including: at least one of polypropylene glycol with a molecular weight of 600-4000, polytetrahydrofuran diol with a molecular weight of 1000-3000, polycaprolactone diol with a molecular weight of 1000-3000, and polycarbonate diol with a molecular weight of 1000-3000; and at least one of 2,4?-diphenylmethane diisocyanate, 4,4?-diphenylmethane diisocyanate, toluene diisocyanate, isophorone diisocyanate, and hexamethylene diisocyanate. The flexible gastight material for the landfill site provided in the present application has a micro-closed-cell foam structure. The closed-cell elastic structure of the flexible gastight material may block the volatilization of toxic and harmful odors, and may cut off the diffusion path of the odors by combining with gas treatment systems at the landfill site. The flexible gastight material has excellent water blocking and gas sealing performance.

Abstract: A task processing method comprising obtaining a first identifier (ID) sequence from a logical unit number (LUN) mapping table based on logical addresses of first data, where IDs in the first ID sequence are allocated based on a sequence of physical addresses, where the LUN mapping table includes mapping relationships between the logical addresses and the IDs; obtaining first physical addresses from an ID mapping table based on one ID in the first ID sequence when the IDs in the first ID sequence are consecutive, where the ID mapping table includes a mapping relationship between an ID and a physical address and the first physical addresses are a plurality of physical addresses corresponding to the first ID sequence; and reading the first data based on the first physical addresses.