Abstract: An electrical circuit for reducing electromagnetic noise or interference in a power converter. The circuit includes at least one shunt capacitor arranged to connect with a grounded component of the power converter, wherein the at least one shunt capacitor is further arranged to be driven by an active control signal so as to sink a noise current originating from a noise source to the grounded component of the power converter, wherein the noise source is connected to the grounded component via a capacitive path formed by at least one stray capacitors.

Abstract: A downlink channel estimation method based on a co-prime array in asymmetric massive MIMO architecture is provided. First, an uplink and downlink asymmetric receiving and transmitting system model based on a co-prime array is established, and a deviation of the frequency domain direction caused by array broadband signals is observed; then, uplink receiving is performed to estimate an uplink channel, and channel parameters such as the number of paths, the angle of arrival and the path gain are recovered; and finally, a downlink channel is reconstructed based on the channel parameters recovered according to the uplink channel. By means of the high angular resolution of the co-prime array, the problem that a recovered uplink channel cannot be directly used for pre-coding of a downlink channel is solved.

Abstract: A method for controlling flight of an unmanned aerial vehicle, includes receiving a data file indicating flight restriction level and range of an airport area in an airport generated according to a risk level of the airport, parsing the data file to obtain the flight restriction level and the range of the airport area, and controlling the unmanned aerial vehicle to execute a flight restriction strategy according to the flight restriction level and the range of the airport area.

Abstract: A semiconductor device includes: a protruding conductive structure that protrudes to a height from a first surface of the semiconductor device; and a first passivation layer, the first passivation layer overlaying the protruding conductive structure by a first thickness, the first passivation layer overlaying the first surface by a second thickness greater than the first thickness, wherein the first passivation layer is planar at a top surface over the first thickness and the second thickness.

Abstract: A method, an apparatus, and an electronic device for providing product object information are disclosed. The method includes: providing an interactive content in a process of playing a live video content associated with a product object, the interactive content being generated according to a material associated with the product object, and the material being used to describe attributes of the product object; and providing a change process of the interactive content according to the material in a process of responding to interactive operation information inputted by a user, to enable a presentation of multiple attributes of the product object. Through the embodiments of the present disclosure, the product object information can be provided to consumers in a more comprehensive and intuitive manner, so as to help the users to make better shopping decisions.

Abstract: A coater with automatic cleaning function and a coater automatic cleaning method. The coater (100,200,300,400,500,600,700,800) includes a coater chamber (101,201,301,401,501,601,701,801) capable of being filled up with cleaning solution, a substrate chuck (102,202,302,402,502,602,702,802) holding and positioning a substrate (103,203,303,403,503,603,703,803), and at least one shroud (108,208,308,408,508) capable of moving up for preventing photoresist from splashing out of the coater chamber (101,201,301,401,501,601,701,801), or moving down and immersing into the cleaning solution for cleaning.

Abstract: A one-handed joystick for excavators allows an operator to make all necessary motions with a single hand and arm for manipulating an excavator tool. The one-handed joystick includes a rotatable cylinder bar, a rotatable ring and an industrial joystick base. The rotatable cylinder bar is grasped with a hand. The industrial base is moved front to back, or right to left. The following are preferable hand/arm motions. A downward hand curl is associated with a bucket digging motion; an upward hand curl is associated with a bucket dump; a forearm forward push is associated with a boom/stick extension; a forearm reward pull is associated with a boom/stick retraction; a left-hand movement is associated with swinging the excavator left; a right-hand movement is associated with swinging the excavator right; a clockwise hand twist is associated with a stick/boom extension; and a counter clockwise hand twist is associated with a stick/boom retraction.

Abstract: A path tracking control method for an intelligent electric vehicle. The method includes the following steps. A lateral stability state of a vehicle is determined, where the lateral stability state includes a stable state, a critical-destabilized state, and a destabilized state. Path tracking control is performed on the vehicle according to the lateral stability state of the vehicle. This application also provides a path tracking control device for an intelligent electric vehicle, which includes a lateral stability state determination module and a path tracking control module.

Abstract: The present invention provides novel compounds which activate the Kv7 potassium channels. Separate aspects of the invention are directed to pharmaceutical compositions comprising said compounds and uses of the compounds to treat disorders responsive to the activation of Kv7 potassium channels.

Abstract: A control system and method for controlling an engine comprising an electric turbocharger are presented. The system comprises a wastegate valve configured to control a pressure of exhaust gas in an exhaust system of the engine at a turbine of the electric turbocharger. A controller obtains a set of parameters that each affect exhaust gas energy; using the set of parameters: (i) determines a target mass flow into the engine and a target boost for the turbocharger to achieve a torque request; (ii) determines a target power for a compressor of the turbocharger to achieve the target engine mass flow and the target turbocharger boost; (iii) determines an electric turbocharger motor power target; (iv) determines, based on the target power for the compressor and the electric turbocharger motor power target, a target pressure ratio and a target mass exhaust flow for the turbine of the electric turbocharger.

Abstract: A low-frequency filtering unit includes a vibrator arm, a balun base, a balun feeder line and a balun chamber tube for arranging the balun feeder line; the vibrator arm includes two radiation arms, one end of the radiation arm is vertically connected to one end of the other radiation arm to form an integral L-shaped right-angle structure, the balun chamber tube is arranged at the connection between the two radiation arms, and the wave-trap structures on the transverse radiation arm and the longitudinal radiation arm are symmetrically arranged with a 45° angular bisector of the L-shaped right-angle structure as a center line; the low-frequency filtering unit is provided with four vibrator arms which are symmetrically arranged in pairs around the periphery of the balun base along a diagonal line and form an integral cross orthogonal structure, and the vibrator arms.

Abstract: A genetically engineered bacterium and a preparation method and use thereof are disclosed. The genetically engineered bacteria contain a gene encoding ?-1,2-fucosyltransferase, and a gene encoding a protein tag is connected to the gene encoding ?-1,2-fucosyltransferase; the protein tag is MBP, SUMO1, SUMO2 or TrxA, the amino acid sequence of the MBP is shown in SEQ ID NO: 2, the amino acid sequence of the SUMO1 is shown in SEQ ID NO: 3, the amino acid sequence of the SUMO2 is shown in SEQ ID NO: 4, the amino acid sequence of the TrxA is shown in SEQ ID NO: 5. Fermentation with the genetically engineered bacteria can greatly increase the yield of 2?-fucosyllactose compared to the genetically engineered bacteria that only expresses ?-1,2-fucosyltransferase exogenously, and the yield can be more than doubled in a preferred case.

Abstract: An antenna module includes a feeding end, multiple first forked radiators, and multiple connecting parts. The first forked radiators are disposed side by side. The connecting parts respectively extend from the feeding end to the first forked radiators. The feeding end, the first forked radiators, and the connecting parts are located on a same plane. The antenna module resonates at a frequency band, and a path length from the feeding end to an end of each of the forked radiators through the corresponding connecting part is ¼ wavelength of the frequency band.

Abstract: According to various embodiments, systems, methods, and media for evaluating an open space planner in an autonomous vehicle are disclosed. In one embodiment, an exemplary method includes receiving, at a profiling application, a record file recorded by the ADV while driving in an open space using the open space planner, and a configuration file specifying parameters of the ADV; extracting planning messages and prediction messages from the record file, each extracted message being associated with the open space planner. The method further includes generating features from the planning message and the prediction messages in view of the specified parameters of the ADV; and calculating statistical metrics from the features. The statistical metrics are then provided to an automatic tuning framework for tuning the open space planner.

Abstract: The invention discloses a genetically engineered bacterium and a method for preparing a fucosylated oligosaccharide using the same. The method includes: transferring a fucosyl group of a donor to an oligosaccharide receptor by a fucosyltransferase heterologously expressed in a genetically engineered bacterium; wherein the donor is a nucleotide-activated donor, the fucosyltransferase has ?-1,2-fucosyltransferase activity; wherein, the fucosyltransferase is selected from one or more of the enzymes corresponding to NCBI Accession Numbers WP_109047124.1, RTL12957.1, MBP7103497.1, WP_120175093.1, RYE22506.1, WP_140393075.1 and HJB91111.1. The preparation method of the invention has high yield, greatly improved substrate conversion rate and product conversion rate, and has the potential to be applied to industrial production.

Abstract: The present invention discloses a genetically engineered bacteria, which is E. coli integrated with lysogenic ?DE3, and lacZ gene is completely inactivated, but does not affect exogenous protein expression of the genetically engineered bacteria. The present invention also discloses a method for culturing the genetically engineered bacteria, and a method for preparing human milk oligosaccharides using the same, and use of the genetically engineered bacteria. The genetically engineered bacteria of the present invention can efficiently produce human milk oligosaccharides, such as 2?-fucosyllactose, and have wide industrial application prospects.

Abstract: The invention discloses a genetically engineered bacterium and its application in the preparation of sialyllactose. The genetically engineered bacterium has an N-acetylneuraminic acid biosynthesis pathway, includes multiple copies of a gene neuB for encoding sialic acid synthase, and the gene neuB is initiated for expression by a strong promoter. Using the genetically engineered bacteria of the invention to produce sialyllactose has the advantages of high yield and low overall cost.

Abstract: A memory cell includes: a first contact feature partially embedded in a first dielectric layer; a barrier layer, lining the first contact feature, that comprises a first portion disposed between the first contact feature and first dielectric layer, and a second portion disposed above the first dielectric layer; a resistive material layer disposed above the first contact feature, the resistive material layer coupled to the first contact feature through the second portion of the barrier layer; and a second contact feature embedded in a second dielectric layer above the first dielectric layer.

Abstract: Provided is an analysis method for determining gas-bearing situation of an unknown shale reservoir, includes: S1, selecting a shale reservoir of a target interval of a place; and collecting data of parameters of cores of each of a known gas-bearing shale reservoir A and a known water-bearing shale reservoir B; S2, calculating average values of the parameters of each of the reservoirs A and B respectively; S3, calculating average differences of the parameters of each of the reservoirs; S4, calculating covariance values of the parameters of each of the reservoirs; S5, establishing, according to the covariance values, an equation group and resolving discriminant coefficients; S6, establishing a discriminant equation according to the discriminant coefficients and solving a discriminant index; and S7, obtaining values of parameters of cores of a sample of the unknown shale reservoir, calculating a discriminant value, and determining gas-bearing situation of the unknown shale reservoir.

Abstract: Methods and systems provide network capacity enhancement. In one embodiment, the method includes identifying delay requirements for an extended reality (XR) service application. The method further includes predicting, in the PDCP layer, one or more of jitter or latency for a data packet and dropping the data packet if the predicted jitter and/or latency is higher than the delay requirements identified for the XR service application. The method further includes predicting, in the MAC layer, jitter or the latency for the data packet and dropping the data packet if the predicted jitter or the latency in the MAC layer higher than the delay requirements identified for the XR service application and preparing the data packet for transmission through a network if the one or more of the jitter or latency in the MAC layer for the data packet is less than the delay requirements identified for the XR service application.