Abstract: An early warning method for safety production risk of tailings pond based on risk ranking is provided. The early warning method includes: monitoring and collecting internal basic data of a tailings pond in real-time, and performing a basic monitoring and a basic early warning; collecting geographical location data, meteorological data, and historical geological disaster data of an area where the tailings pond is located; performing risk ranking on a safety production risk of the tailings pond, thereby obtaining a risk level of the tailings pond; and collecting case data of global tailings pond accidents and hazard degree data thereof, acquiring accident solution strategies for the global tailings pond accidents, performing management and monitoring on the tailings pond, setting parameters in a process of the basic monitoring, and performing a ranked early warning on the safety production risk of the tailings pond based on the risk level.

Abstract: The disclosure belongs to the technical field of sodium ion battery materials, and discloses a preparation method of a hard carbon anode material and use thereof. The preparation method includes the following steps of: performing first sintering on starch, crushing, and introducing air and nitrogen for secondary sintering to obtain porous hard block granules; and performing third sintering on the porous hard block granules, and then continuously warming up to perform fourth sintering to obtain the hard carbon anode material. The hard carbon anode material prepared by the disclosure has a reversible capacity of no less than 330 mAh/g, excellent cycle stability and initial coulomb efficiency.

Abstract: The present invention relates to an electrochemical sensing intelligent chamber with integrated environmental parameters, comprising a chamber body of the intelligent chamber for electrochemical sensing and detection. A communication control unit, a temperature monitoring unit, a gas detection unit and an electrochemical sensing and detection unit are arranged in the chamber body. An environmental parameter monitoring unit that can monitor temperature and gas is integrated; and all monitored environmental variables may be uploaded to a smart phone for a user to view. Operation steps in the electrochemical sensor measurement process conducted in the chamber body are fully automated.

Abstract: A die steel with a high thermal diffusion coefficient includes 0.30-0.40 wt. % of C, 0.05-0.10 wt. % of Si, 2.50-3.40 wt. % of Mo, 0.01-0.05 wt. % of Nb, 0.30-0.50 wt. % of Co, 0.01-0.05 wt. % of RE, the rest is Fe and unavoidable impurities, wherein in the die steel, P?0.15 wt. %, S?0.025 wt. %. A preparation method of the die steel includes steps of melting, electroslag remelting, electroslag ingot annealing, forging, spheroidizing annealing, quenching and tempering.

Abstract: A low-oxygen heating-type cigarette assembly, comprising a low-oxygen heating-type smoking set (B) and a low-oxygen heating-type cigarette (A). The low-oxygen heating-type smoking set (B) comprises a heating section (4) and a smoke extracting member (2) detachably arranged with the heating section (4), wherein the heating section (4) is provided with a cigarette receiving chamber (4-1), and the smoke extracting member (2) comprises a hollow smoke extracting cone (2-1) and a smoke transmission tube (2-2).

Abstract: A leg assembly and a legged robot having same are provided. The leg assembly includes a first leg, a second leg, a motor, an output flange and a transmission component. The motor is arranged at a first end of the first leg, and an output shaft of the motor is connected to the output flange to drive the output flange to rotate. The first leg is pivotably connected to the second leg, and the transmission component is connected to the output flange and the second leg to drive the second leg to rotate relative to the first leg. The output flange is provided with a first limiting portion, the first leg is provided with a first stop portion and a second stop portion spaced apart and configured to stop the first limiting portion, and the first leg is provided with a second limiting portion configured to stop the second leg.

Abstract: A servo motor and a robot. The servo motor includes: a housing, a rotor, a stator, a Hall magnet, and one printed circuit board. The rotor is arranged in the housing and has a rotor support and a rotor shaft; the stator is arranged in the housing; the Hall magnet is arranged on the rotor; the printed circuit board is arranged in the housing and provided with a position sensor facing the Hall magnet.

Abstract: Set forth herein are compositions comprising A·(LiBH4)·B·(LiX)·C·(LiNH2), wherein X is fluorine, bromine, chloride, iodine, or a combination thereof, and wherein 0.1?A?3, 0.1?13?4, and 0?C?9 that are suitable for use as solid electrolyte separators in lithium electrochemical devices. Also set forth herein are methods of making A·(LiBH4)·B·(LiX)·C·(LiNH2) compositions. Also disclosed herein are electrochemical devices which incorporate A·(LiBH4)·B·(LiX)·C·(LiNH2) compositions and other materials.

Abstract: The present invention may disclose a turbine fracturing equipment, including a transporter, a turbine engine, a reduction gearbox, a transmission mechanism and a plunger pump, wherein an output end of the turbine engine may be connected to one end of the reduction gearbox, the other end of the reduction gearbox may be connected to the plunger pump through a transmission mechanism; the transporter may be used to support the turbine engine, the reduction gearbox, the transmission mechanism and the plunger pump; the transporter may include a chassis provided with a transport section, a bearing section and a lapping section which may be connected in sequence; while the turbine fracturing equipment may be in a working state, the bearing section can contact with the ground, while the turbine fracturing equipment may be in a transport state, the bearing section may not contact with the ground.

Abstract: A method for preparing a Bainite hot-working die, includes: 1) weighing and mixing alloy raw materials including: C: 0.50-0.60%, Si: 0.20-0.25%, Mn: 1.00-1.50%, W: 2.10-3.00%, Mo: 3.50-5.00%, V: 0.50-1.00%, Co: 0.60-1.10%, P?0.02%, rare earth (RE): 0.01-0.10%, (RE)/(S)>3.0, (RE)×(S)<0.004%, the balance being Fe and impurities; smelting, casting, annealing the alloy raw materials, to yield steel billets; 2) forging the steel billets to obtain Bainite die billets; 3) mechanically roughening the Bainite die billets, to yield die inserts; 4) tempering the die inserts, to yield hardened Bainite die inserts through secondary strengthening of Bainite; 5) mechanically machining the hardened Bainite die inserts to yield precisely sized die inserts; 6) nitriding the precisely sized die inserts; and 7) assembling the die inserts to yield a Bainite hot-working die.

Abstract: A single-atom catalyst for use in a water splitting process includes at least one support material and at least one metal catalyst deposited on the surface of the at least one support material. The at least one support material is made of tungsten carbide obtained from a tungstate-metal-aryl compound precursor, and the at least one metal catalyst is selected from a group including Fe, Ni, Mn, Co, Cu, Zn, V, Ru, Ir, Ca, Pd, Pt or combinations thereof.

Abstract: Angularly homogenizing gradient index optical fiber having a refractive index profile that is non-quadratic to a degree sufficient to enhance precession of light as it is propagated through the fiber. Deviation from the quadratic may be limited to avoid profoundly changing the radial boundary within the fiber. Beam asymmetry, for example, associated with small aperture sources launched into a fiber off axis, may be made more symmetric as the beam is propagated through the homogenizing gradient index optical fiber. A refractive index profile may be manufactured to avoid a pure quadratic profile, or a fiber having a refractive index profile that is quadratic in only some orientations about the fiber axis may be twisted during draw to induce a refractive index profile path that enhances propagation precession.

Abstract: A hybrid braided stent includes a stent body (20). The stent body (20) is a single-layer structure. The stent body (20) is a tubular structure formed by interweaving a plurality of filaments. The end areas of at least two of the plurality of filaments are different.

Abstract: The present invention discloses a recirculating aquaculture system (RAS) and method for shrimp culture through SBR wastewater treatment. The RAS includes a control cabinet, culture tanks, a clean water tank, a clean water filling pipeline, a drainage pipeline, a buried activated sludge tank and a solid-liquid separation mechanism. The solid-liquid separation mechanism comprises a sludge pump, an input pipe, a plate and frame type filter press and a liquid output pipe. An input end of the sludge pump is immersed in sewage of the buried activated sludge tank; and a clean water output end of the plate and frame type filter press is connected with the buried activated sludge tank through the liquid output pipe.

Abstract: Dictionary learning method and means for zero-shot recognition can establish the alignment between visual space and semantic space at category layer and image level, so as to realize high-precision zero-shot image recognition. The dictionary learning method includes the following steps: (1) training a cross domain dictionary of a category layer based on a cross domain dictionary learning method; (2) generating semantic attributes of an image based on the cross domain dictionary of the category layer learned in step (1); (3) training a cross domain dictionary of the image layer based on the image semantic attributes generated in step (2); (4) completing a recognition task of invisible category images based on the cross domain dictionary of the image layer learned in step (3).

Abstract: Disclosed are a CRISPR-Cas14a responsive photoelectrochemical sensing detection method and a kit for detecting T2 toxin, relating to the technical field of small molecule toxin detection; the detection method includes: (1) preparation of a magnetic probe; (2) electrode modification; (3) identification of magnetic beads; (4) SDA isothermal amplification; (5) cutting; (6) photoelectrochemical detection; and (7) standard curve plotting. According to the present application, using SDA to enlarge and amplify the signal isothermally, target is detected by Cas14a trans cleavage property and photoelectric signal with good stability, high specificity of reaction, high sensitivity.

Abstract: In one embodiment, a method includes capturing images of a first user wearing a VR display device in a real-world environment. The method includes receiving a VR rendering of a VR environment. The VR rendering is from the perspective of the mobile computing device with respect to the VR display device. The method includes generating a first MR rendering of the first user in the VR environment. The first MR rendering of the first user is based on a compositing of the images of the first user and the VR rendering. The method includes receiving an indication of a user interaction with one or more elements of the VR environment in the first MR rendering. The method includes generating, in real-time responsive to the indication of the user interaction with the one or more elements, a second MR rendering of the first user in the VR environment. The one or more elements are modified according to the interaction.

Abstract: Set forth herein are compositions comprising A·(LiBH4)·B·(LiX)·C·(LiNH2), wherein X is fluorine, bromine, chloride, iodine, or a combination thereof, and wherein 0.1?A?3, 0.1?B?4, and 0?C?9 that are suitable for use as solid electrolyte separators in lithium electrochemical devices. Also set forth herein are methods of making A·(LiBH4)·B·(LiX)·C·(LiNH2) compositions.

Abstract: The present invention provides a single photon avalanche diode device. The device has a logic substrate comprising an upper surface. The device has a sensor substrate bonded to an upper surface of the logic substrate. In an example, the sensor substrate comprises a plurality of pixel elements spatially disposed to form an array structure. In an example, each of the pixel elements has a passivation material, an epitaxially grown silicon material, an implanted p-type material configured in a first portion of the epitaxially grown material, an implanted n-type material configured in a second portion of the epitaxially grown material, and a junction region configured from the implanted p-type material and the implanted n-type material.

Abstract: A method of analyzing source code includes receiving, by a processor, an updated version of a computer program, the updated version including a source code. The method also includes preprocessing, by a compiler, the source code for a target computing platform. Preprocessing the source code by the compiler includes identifying a macro condition associated with one or more computer instructions enclosed by a macro, determining object code corresponding to the one or more computer instructions based on a current value of the macro condition, and generating object code and macro information for output to a debugger, the macro information including one or more breakpoint conditions in the macro.