Abstract: This disclosure generally relates to power generation methods and systems based on gas turbine engines, and particularly to mobile and adaptive power generation systems and methods based on gas turbine engine for supplying mechanical and/or electrical power for fracturing operations at an oil wellsite. Various systems, platforms, components, devices, and methods are provided for flexibly and adaptively configure one of more gas turbines, hydraulic pumps, and electric generators to support both fracturing and electric demands at a well site. The disclosed implementations enable and facilitate a mobile, adaptive, and reconfigurable power system to provide both mechanical and electric power for hydraulic fracturing operation.

Abstract: Disclosed is a method for gene expression by transient transformation of a wild rice seed using Agrobacterium. The method includes the following steps: subjecting a wild rice seed to induction culture and subculture in sequence, and selecting a resulting callus with a dense structure to allow pre-culture to obtain a pre-cultured callus; transforming a 1305Ubi-Ubi-GFP-H plasmid carrying a green fluorescent protein (GFP) gene into an Agrobacterium strain EHA105 or LBA4404 to obtain a positive Agrobacterium strain; subjecting the positive Agrobacterium strain to culture to obtain a bacterial suspension with an optical density (OD) value of 0.02 to 0.5 at a wavelength of 600 nm to obtain an infection bacterial solution; and infecting the pre-cultured callus with the infection bacterial solution to allow co-culture and recovery culture in sequence; observing an infection status of a recovered callus under a stereo fluorescence microscope, and calculating a transient expression rate.

Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate, organic light-emitting elements, a data line, and an electrode line. The organic light-emitting element includes a first electrode, a light-emitting layer and a second electrode sequentially stacked; the data line is located between the base substrate and the organic light-emitting element; the electrode line is on the same layer as the data line and located in a region outside a light-emitting region of the organic light-emitting element. The display substrate further includes at least one connection portion, which is in the region outside the light-emitting region and is configured to connect the electrode line and the first electrode, the connection portion is spaced apart from the second electrode, and the light-emitting layer covers the second electrode and the at least one connection portion.

Abstract: A display substrate and a display device relate to the technical field of displaying. The display substrate includes a plurality of display units spaced apart from each other and a plurality of connection units, the plurality of connection units being connected between two adjacent display units; the plurality of connection units include: two connection units arranged along a first direction, wherein the first direction is parallel to a stretching direction of the display substrate; wherein the two connection units arranged along the first direction are axisymmetric with respect to a first reference line, so that the plurality of connection units arranged along a second direction have a same deformation amount in a stretching state, the second direction is perpendicular to the stretching direction, and an extension direction of the first reference line is parallel to the second direction.

Abstract: The present disclosure provides mechanisms for reducing and suppressing random telegraph noise (RTN) for a crossbar circuit. A processing device may perform a programming process to program the conductance of a resistive random-access memory (RRAM) device in the crossbar circuit to a target conductance value. The processing device may then determine whether a random telegraph noise (RTN) value associated with the RRAM device is within a predetermined range of acceptable RTN values. If the RTN value associated with the RRAM device is not within a predetermined range of acceptable RTN values, one or more noise-reduction voltages may be applied to the RRAM device until the RTN value associated with the RRAM device is within the predetermined range of acceptable RTN values.

Abstract: A method for sentiment analysis includes that: a feature sequence corresponding to text is obtained, the feature sequence includes encoded features; each encoded feature in the feature sequence is processed by using an attention mechanism, to obtain an attention feature of the text; the attention feature is transferred to a spatial transform feature of the text; an entity attribute of the spatial transform feature is recognized, and sentiment mapping is performed based on the spatial transform feature to obtain a sentiment polarity of the entity attribute.

Abstract: A micro LED display panel is provided. The micro LED display panel includes a driving substrate and a plurality of bonding pads disposed on the driving substrate and spaced apart from each other. The micro LED display panel also includes a plurality of micro LED structures electrically connected to the bonding pads. Each micro LED structure includes at least one electrode disposed on the side of the micro LED structure facing the driving substrate. The electrode has a normal contact surface and a side contact surface. The normal contact surface faces the driving substrate, and the side contact surface is laterally connected to the corresponding bonding pad.

Abstract: The present disclosure relates to a finite control set model predictive control method of an LLCL battery energy storage converter, wherein the method uses a finite control set model predictive control method to control an energy storage converter based on an LLCL filter, establishes and discretizes a state space mathematical model of the LLCL battery energy storage converter to obtain a discrete model, converts reference values of a current at a grid side into reference values of a current at a converter side and a capacitor voltage based on a phasor method at the same time, defines a cost function, compares an output result of a prediction model with the reference value, selects an optimal voltage vector and selects a most appropriate switching state to work.

Abstract: A method for preparing Mg-RE alloys with high strength and ductility using selective laser melting (SLM) additive manufacturing technology includes the following steps of: A. preparing Mg-RE-(Zn)—Zr pre-alloyed spherical powder by gas atomization; B. molding the Mg-RE-(Zn)—Zr pre-alloyed spherical powder using SLM to obtain the Mg-RE alloys with high strength and ductility; and C. conducting heat treatment on the Mg-RE alloys prepared in step B: solid solution+aging treatment or only aging treatment The method adjusts and controls microstructure and mechanical properties of the alloys by adjusting and controlling process parameters of SLM (laser power, scanning speed, hatch spacing, spot diameter, layer thickness, interlayer rotation angle, substrate preheating temperature, partition width and overlapping area width) and process parameters of subsequent heat treatment (temperature and time) to prepare the Mg-RE-(Zn)—Zr alloys with high strength and ductility using SLM process for the first time.

Abstract: The present disclosure provides an electronic circuit, a memory device, and a method for operating an electronic circuit. An electronic circuit comprises a driver circuit configured to provide a drive voltage to a word line of the electronic circuit, a suppression circuit electrically connected to the driver circuit and the word line, and a control circuit electrically connected to the suppression circuit. The suppression circuit is configured to generate a voltage drop in the drive voltage. The control circuit controls the suppression circuit.

Abstract: The present application relates to the field of image processing technology, specifically to a lip movement detection method and apparatus, a computer-readable storage medium and an electronic device, solving the problem of weak generalization ability and poor robustness of traditional lip movement detection method. The lip movement detection method provided in an embodiment of the present application determines a lip movement detection result of a user based on a reference interlabial distance of the user in a first image frame, where the reference interlabial distance is determined based on a correspondence between an interlabial distance and a reference value for interlabial distance, thus the reference interlabial distance is a relative value. That is, the reference interlabial distance is not easily affected by factors such as shooting angle and shooting distance, thereby improving the robustness of the lip movement detection method.

Abstract: A method for fabricating a forming-free resistive random-access memory (RRAM) device is provided. The method includes: fabricating an RRAM cell and annealing the RRAM cell. The RRAM cell includes: a bottom electrode, a switching oxide layer comprising at least one transition metal oxide; a top electrode, and an interface between the switching oxide layer and the top electrode. In some embodiments, the at least one transition metal oxide includes at least one of HfOx or TaOy, wherein x?2.0, and wherein y?2.5. The interface layer comprises a layer of at least one of Al2O3, MgO, Y2O3, or La2O3. The forming-free RRAM device may be switched to multiple resistance levels without a forming process.

Abstract: A memory device is provided which includes a first memory cell including a first transistor and a second transistor coupled to the first transistor in parallel. Gates of the first transistor and the second transistor are coupled to each other, and the gates of the first transistor and the second transistor pass different layers and overlap with each other. Types of the first transistor and the second transistor are the same.

Abstract: A reducing and non-blast furnace smelting method of alkaline vanadium-titanium pellets and hot-pressed carbon-containing vanadium-titanium pellets. By upgrading the vanadium-titanium concentrates, improving quality of the reducing gas, increasing the proportion of the reduction section of the shaft furnace, removing the cooling section to achieve hot charging, and improving the electric furnace, the method accelerates the reduction rate of the vanadium-titanium pellets reduced by the gas-based shaft furnace, improves the final reduction degree of the vanadium-titanium pellets, achieves the rapid non-blast furnace smelting of the vanadium-titanium pellets.

Abstract: A lift structure for an aerodrome structure comprises: an upstanding tubular frame comprising an upper ring located over a base ring and supported thereon by columns: a platform located within the tubular frame; and a lift mechanism arranged to raise and lower the platform between the base ring and the upper ring. The columns are spaced apart from each other to provide a side opening for loading an aircraft onto the platform and unloading an aircraft therefrom when the platform is in a lowered position. The platform provides a take-off and landing pad for an aircraft when the platform is in a raised position. An aerodrome structure comprises the lift structure and additional elements.

Abstract: A vehicle control device for shell sharing between control modules comprises a first control module and a second control module. The first control module comprises a plurality of first connectors, a first circuit board, and a first controller arranged in a second area of the first circuit board. The second control module comprises a plurality of second connectors, a second circuit board, and a second controller arranged in the fourth area of the second circuit board. By setting the size of the first circuit board and the second circuit board to be consistent, the number and type of the first connectors and the second connectors to be consistent, and the second area of the second circuit board corresponding to the first area of the first circuit board is set, the shell structure of the first control module and the second control module can be shared. A vehicle is also provided.

Abstract: The present disclosure provides a method for experimentally determining a critical sand-carrying gas velocity of a shale gas well. The method includes: collecting well structure and production data, calculating parameter ranges of a gas flow velocity and a liquid flow velocity; carrying out a physical simulation experiment of sand carrying in the shale gas well to obtain the sand holding capacity of the wellbore under different experimental conditions, and calculating a sand holding rate; by observing a change curve of the sand holding rate of the wellbore vs. the gas flow velocity, defining a turning point, and sensitively analyzing the influence of other experimental variables on the turning point, to calculate the critical sand-carrying production of the shale gas well under different conditions. Therefore, this calculation method is simple and applicable, and provides a theoretical basis for the optimization design of water drainage and gas production process.

Abstract: A hydrogenation method for an aromatic polymer includes the step of: bringing an aromatic polymer into contact with a hydrogenation reagent in the presence of a hydrogenation catalyst so as to hydrogenate at least some aromatic rings in the aromatic polymer. The hydrogenation catalyst contains a carrier and a platinum element, a group IVA element and a rare earth metal element loaded on the carrier, and the carrier is alumina. Hydrogenated block copolymers, hydrogenated five-block copolymers and hydrogenated seven-block copolymers can be produced using the hydrogenation method, which hydrogenates the aromatic ring in the aromatic polymer to obtain a higher aromatic ring hydrogenation degree. The hydrogenated block copolymers have a high hydrogenation degree, high light transmittance, low haze, and excellent impact toughness.

Abstract: Among other things, we describe techniques for electric power steering torque compensation. Techniques are provided for a method implemented by a computer, e.g., a computer onboard an autonomous vehicle. A planning circuit onboard the vehicle and connected to an EPS of the vehicle determines a compensatory torque signal to modify an actual steering angle of a steering wheel of the vehicle to match an expected steering angle of the steering wheel. The planning circuit transmits the compensatory torque signal to a control circuit that controls the steering angle of the steering wheel. The EPS modifies the actual steering angle based on the compensatory torque signal resulting in a modified steering angle. The control circuit operates the vehicle based on the modified steering angle.

Abstract: A method comprising instantiating virtual routers (VRs) at each of a set of nodes that form a network. Each VR is coupled to the network and to a tenant of the node. The network comprises virtual links in an overlay network provisioned over an underlay network including servers of a public network. The method comprises configuring at least one VR to include a feedback control system comprising at least one objective function that characterizes the network. The method comprises configuring the VR to receive link state data of a set of virtual links of the virtual links, and control routing of a tenant traffic flow of each tenant according to a best route of the network determined by the at least one objective function using the link state data.