Abstract: A state detection circuit for detecting whether a state of an input node is floating, grounded, or electrically connected to an external voltage includes: a unidirectional device circuit and a determination circuit. The unidirectional device circuit electrically conducts a test node to a detection node unidirectionally. The detection node is coupled to the input node. The test node, the unidirectional device circuit, the detection node and the input node form a current path. The determination circuit determines a state of the input node according to a voltage level of the detection node. Within a detection stage, the state detection circuit provides a test voltage at the test node. A voltage of the detection node is determined by the input node, the test voltage, and a characteristic of the unidirectional device circuit.

Abstract: A robotic lawn mower comprises a frame, a first wheel set, and a second wheel set, wherein the first wheel set and the second wheel set are respectively arranged at opposite rear and front ends of the frame, the first wheel set is equipped with driving wheels, and the second wheel set is equipped with omni-directional wheels. The robotic lawn mower further comprises a controller, a first driving module, and a second driving module, wherein the controller is connected to each of the driving modules, the controller controls the first driving module to drive the first wheel set to move so as to provide main power to the robotic lawn mower, and the controller further controls the second driving module to drive the second wheel set to rotate so as to provide auxiliary power for overcoming a resistance generated by the ground when the second wheel set rotates.

Abstract: An active energy-absorbing shock absorber for perforation combined well testing includes a first energy-absorbing mechanism, a second energy-absorbing mechanism and an axial-force cushioning mechanism. The first energy-absorbing mechanism includes a gun body, a gun head, a gun tail joint, a support frame, an energy-absorbing filling layer and a detonation mechanism. The second energy-absorbing mechanism includes an intermediate connecting cylinder, an outer cylinder, a limiting step, a movable impact head, a support base, a hydraulic buffer mechanism, a piston rod, an energy-absorbing spring and an inner cavity piston. The axial-force cushioning mechanism includes a housing, a guide mechanism, a buffer shaft and a multi-stage buffer spring. The absorber with a multi-layer structure is filled with a foam aluminum material.

Abstract: A magnetic resonance system, a transmission apparatus, and a transmission method is provided. The transmission method includes: generating and outputting a pulse signal by a signal output unit, amplifying the pulse signal by a radio-frequency power amplifier, and transferring, by an impedance matching circuit, the signal amplified by the radio-frequency power amplifier to a transmit coil of the magnetic resonance system; and determining a first phase among a plurality of adjustable phases that enables a performance indicator of the radio-frequency power amplifier to meet a first condition, and adjusting an output impedance of the impedance matching circuit at least according to the first phase.

Abstract: The present disclosure belongs to the technical field of casting, and specifically relates to a high-inertia mold shell for casting, a preparation method thereof, and a method for improving precision of a magnesium alloy cast. The high-inertia mold shell for casting includes a surface layer, which is configured to contact a magnesium alloy pouring liquid, wherein the surface layer contains an inorganic compound, and the inorganic compound is at least one selected from the group consisting of boric anhydride, borax, potassium fluoride, and sodium fluoride; and in the above, based on a total amount of raw materials of the surface layer, a content of the inorganic compound accounts for 10-40 wt %.

Abstract: The present invention provides a B/N organic electroluminescent material and its preparation method and use, as well as the corresponding organic light-emitting device. The B/N organic electroluminescent materials DBTN-1 and DBTN-2 in the present invention show narrowband green emission both in dilute solution and doped film, with extremely high photoluminescence quantum yields and efficient thermally activated delayed fluorescence feature. In particular, the organic light-emitting devices based on the above fluorescent dye exhibit ultra-pure green electroluminescence with high efficiencies and high color purity, which can be applied to usages such as ultra-high definition display technology.

Abstract: An electrochemical device, including a positive electrode, wherein the positive electrode includes a positive active material layer, which includes a positive active material, the positive active material includes a first substrate and a first region disposed on a surface of the first substrate, and based on a molar content of a Co element in the first region, a molar percentage X of an M1 element in the first region is ?0.5%, wherein M1 includes at least one of aluminum, magnesium, titanium, zirconium, manganese, lutetium, barium, nickel, lanthanum, yttrium, niobium, tungsten, calcium, sodium, selenium, or sulfur; and a negative electrode, wherein the negative electrode includes a negative active material layer; and 1.3?Pnegative/Ppositive? 3.5, wherein Pnegative is a porosity of the negative active material layer, and Ppositive is a porosity of the positive active material layer.

Abstract: A mount bracket is adapted to fix a storage device to a first side plate. The mount bracket includes a base part and a handle. The base part includes a first support portion and a second support portion. The first support portion is configured to be removably disposed on the first side plate. The first support portion has at least one first buffering structure configured to be in contact with the first side plate. The second support portion is connected to the first support portion and configured to support the storage device. The handle is pivotably disposed on the base part.

Abstract: This application provides an interaction method based on an electronic map performed by an electronic device. The method includes: presenting an electronic map in a human-computer interaction interface; and in response to an interaction operation on points of interest in the electronic map, presenting, on the electronic map, a first point of interest according to a first state, and presenting at least one second point of interest with a same name as the first point of interest according to a second state, the first state being different from the second state.

Abstract: The present disclosure provides a fracturing fluid mixing equipment including a clear water supply system, at least two mixing systems, at least one powder tank, at least two powder conveying systems, a mixing tank, a feeding system and a power system. The clear water supply system has two parallel water supply paths which are connected to the mixing system and the mixing tank respectively. The powder conveying system is connected to the powder tank. There are same number of powder conveying systems and mixing systems which are connected in one-to-one correspondence. The mixing system is connected into the mixing tank. The feeding system adds powder by pneumatic conveying. The power system provides driving force by pure electric power and/or electro-hydraulic power. According to present disclosure, the power system can reduce fuel consumption and exhaust emissions.

Abstract: A bridge converter converts an input voltage into an output voltage, and includes a switching circuit, a transformer, a rectifying circuit, and a control module. The switching circuit includes a first switch and a second switch. The control module sets a first time period and a second time period. The control module provides a first control signal and a second control signal to control the switching circuit based on the output voltage. The control module fixes an operation frequency of the first control signal and the second control signal at the maximum frequency based on that the control module is set in a standby mode, and provides the first control signal and the second control signal in the first time period, and shields the first control signal and the second control signal in the second time period.

Abstract: A method for preparing a bisphenol phosphate hydroxyl aluminum salt nucleating agent is provided, which adopts organic aluminum alcoholate as raw materials to prepare bisphenol phosphate hydroxyl aluminum salt. In prior art, a neutralization reaction of bisphenol phosphate and sodium hydroxide is firstly performed, so as to prepare bisphenol phosphate sodium salt; then a double decomposition reaction of sodium salt and inorganic aluminum salt is performed to prepare the bisphenol phosphate hydroxyl aluminum salt. The present invention combines the two-step reaction in prior art into the one-step reaction of phosphate and organic aluminum alcoholate for synthesizing the bisphenol phosphate hydroxyl aluminum salt, thereby simplifying the production process, improving the production efficiency, shortening the reaction time, and improving the product quality.

Abstract: A method for forging a niobium-tungsten alloy forged ring, including: (S1) subjecting an alloy ingot to turning, chamfering, spraying with an anti-oxidation coating, stainless-steel sheathing, heating and upsetting to obtain a primary pancake with a flat-die hammer, rapid-forging press or hydraulic press; (S2) subjecting an inner pole to wire electrical discharge machining to obtain a ring blank followed by machining to remove the stainless-steel sheath and oxide scale and defects; and subjecting the ring blank to fluorescent/dye penetrant inspection followed by vacuum stress-relief annealing; (S3) subjecting the ring blank to core shaft/saddle forging on the flat-die hammer or rapid-forging press to obtain a crude forged ring; and (S4) subjecting the crude forged ring to vacuum recrystallization annealing to obtain a desired forged ring.

Abstract: A fixing device for clamping a tissue comprises a support mechanism comprising a fixed connecting assembly and a drive assembly, and a clamp mechanism comprising closure members and capture portions, wherein each closure member comprises a closure connecting portion and a closure clamping portion in cooperation with one of the capture portions to clamp the tissue; wherein each closure connecting portion is provided with guide slots comprising a first slot portion and a second slot portion in communication therewith and has a relatively smaller radian, the fixed connecting assembly is provided with pins at least partially located in the guide slots, respectively, and the pins are slidable relative to the guide slots when the drive assembly moves relative to the fixed connecting assembly, so as to drive the closure clamping portions to move towards or away from each other. A system comprising the fixing device, and a method are provided.

Abstract: The present disclosure provides a dimming window and a method for manufacturing the same. The dimming window includes a cell defined by a first substrate and a second substrate, where at least one side edge of the first substrate exceeds an outside of the second substrate, and a part of the first substrate that exceeds the second substrate serves as a single substrate region; a first transparent conductive layer on one side of the first substrate facing the second substrate; a second transparent conductive layer on one side of the second substrate facing the first substrate; and a liquid crystal layer between the first substrate and the second substrate.

Abstract: A medical device and a movement control method therefor is presented. The method includes: determining and storing first distances of movement of a table corresponding to different examination sites, wherein the different examination sites are triggered by different first trigger modes, so that the table is then moved by the corresponding first distances.

Abstract: A device includes a decoder that includes a spatial prediction engine, a temporal prediction engine, a reconstruction engine, and a decoded picture buffer. The device also includes a controller configured to cause the decoder to, in a base resolution mode, reconstruct a base resolution version of a block of a frame using the reconstruction engine and at least one of the spatial prediction engine or the temporal prediction engine. The controller is also configured to cause the decoder to, in an enhanced resolution mode, generate an enhanced resolution version of the block using the reconstruction engine and the at least one of the spatial prediction engine or the temporal prediction engine.

Abstract: According to one embodiment, a network function node is provided. The network node function includes processing circuitry configured to receive a request for performing a network action where the request includes an access network cell identity that includes a network node identifier associated with a network node and a serving cell identifier associated with a serving cell, and a bit length of the network node identifier. The processing circuitry is configured to determine the network node identifier based at least one the bit length of the network node identifier, estimate a respective coverage area for each of the plurality of cells, estimate a coverage area of the serving cell based at least on the estimates of the respective coverage areas of the plurality of cells, and perform the requested network action based at least on the estimated coverage area of the serving cell.

Abstract: The present disclosure provides compositions and methods for cell transplantation therapy based on forced expression of an exogenous HLA-F protein in donor cells to be transplanted into a subject. In some embodiments, the donor cells express an exogenous chimeric HLA-F protein comprising an extracellular region comprising an HLA-F alpha 1 domain, an HLA alpha 2 domain, an HLA-F alpha 3 domain, a linker and a ?2m protein.

Abstract: A magnetic resonance imaging (MRI) system and method integrating multi-nuclide synchronous imaging and spectral imaging is provided. The MRI system includes a spectral imaging module, a multi-nuclide synchronous imaging module, and a spectral reconstruction and image fusion module, where the spectral imaging module is configured to acquire a spectrum of a nuclide Nuc; the multi-nuclide synchronous imaging module is configured to perform synchronous imaging of nuclides Nuc1 . . . . Nucn, where when n=1, Nucl is 1H; and when n>1, Nucn is a non-1H nuclide; and the spectral reconstruction and image fusion module is configured to receive the spectrum of the nuclide Nuc and images of the nuclides Nuc1 . . . . Nucn, and acquire spatial distribution information of compounds of the nuclide Nuc and spatial distribution information of the non-1H nuclide through fusion. The system and method can synchronously acquire MR signals of different nuclides, and reconstruct and fuse non-1H nuclide images.