Abstract: A multi-spectrum fusion decision fault diagnosis method for a high-speed electric multiple-unit bearing, including the steps of collecting, by an acceleration sensor vibration acceleration signals of a high-speed electric multiple-unit; performing multi-method spectrum analysis on vibration acceleration signal data of a plurality of faults under a constant working condition, and marking the data to construct a spectrum data set; extracting inherent fault features of the spectrum data set to form a fault feature data set; performing weight fusion on spectrum fault features of different methods to construct a spectrum fault feature function, and fusing each set of spectra in the spectrum data set into a data point; using a criterion that a fisher discrimination ratio minimizes an intra-class spacing and maximizes an inter-class spacing to seek an optimal weight combination under the data set, so that fusion data points distinguish the different types of faults to a maximum degree.

Abstract: A data transmission method for a virtual reality system, the data transmission method including: performing, by a first processor, image sampling on an image to be transmitted to obtain a first image; performing, by the first processor, image sampling on the image to be transmitted to obtain a second image; transmitting, by the first processor, the first image and the second image to a virtual reality apparatus; receiving the first image and the second image by the virtual reality apparatus and processing the first image and the second image by the virtual reality apparatus to obtain an image to be displayed; and displaying the image to be displayed by the virtual reality apparatus.

Abstract: A construction method of fast-setting polymer grouting for rapid control of slope erosion and landslide.

Abstract: In one embodiment a semiconductor structure comprises a semiconductor substrate, a trench dielectric layer disposed in a trench of the semiconductor substrate, a first source/drain region disposed in contact with the semiconductor substrate, a gate and a second source/drain region. The gate is disposed between the first source/drain region and the second source/drain region. The semiconductor structure further comprises a dielectric isolation layer disposed between the semiconductor substrate and the second source/drain region.

Abstract: Provided are an ionizable lipid compound of formula I for nucleic acid delivery and an LNP composition thereof, which can efficiency and stably deliver a biologically active substance to a target cell or an organ. The mRNA LNP prepared by using the lipid compound as a cationic lipid has better stability and transfection efficiency, and can cause a higher specific antibody response in an experimental animal body.

Abstract: The present disclosure provides an SOT-MRAM memory cell, including: a bottom electrode; a magnetic tunnel junction layer located on the bottom electrode; an orbital Hall effect layer located on the magnetic tunnel junction layer; a first transistor, a drain of which is connected to the orbital Hall effect layer; and a second transistor, a drain of which is connected to the bottom electrode. The present disclosure further provides an SOT-MRAM memory, an operation method, and an SOT-MRAM memory array.

Abstract: The present invention discloses a recombinant RBD trimer protein capable of simultaneously generating cross neutralization activity for various severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic strains. The RBD trimer protein is taken as an antigen and supplemented with an adjuvant to immunize an organism, so that a high-titer neutralizing antibody aiming at various SARS-CoV-2 epidemic strains can be generated at the same time, and the antibody has a certain broad-spectrum property and can be used for treating and/or preventing SARS-CoV-2 infection and/or coronavirus disease 2019.

Abstract: A backlight module includes a back plate, a backlight component, and a rigid rear shell. The back plate includes a bottom plate and a vertical plate enclosing a mounting space. The backlight component is located in the mounting space and fixedly connected with the back plate. The rigid rear shell covers a side of the back plate away from the backlight component. The rigid rear shell includes a function part, a preset gap exists between the function part and the bottom plate. The bottom plate has a first connecting part including a first screw hole. The function part has a second connecting part including a second screw hole. The first connecting part and the second connecting part are connected through a fixing screw penetrating into the first screw hole and the second screw hole. A first gap exists between the first connecting part and the second connecting part.

Abstract: A battery detection system includes a battery assembly and an electronic device. The battery assembly includes a first connector and a detection module connected to the first connector. The electronic device includes a second connector and a control module connected to the second connector. When the first connector is connected to the second connector, the detection module is configured to output first identification information to the electronic device through the first connector. When the second connector receives the first identification information, the control module confirms that the battery assembly is in a connected state. After the first connector is disconnected from the second connector, the detection module generates and outputs second identification information. When information received by the second connector changes from the first identification information to the second identification information, the control module confirms that the battery assembly is disconnected.

Abstract: A data transmission method for a virtual reality system, the data transmission method including: performing, by a first processor, image sampling on an image to be transmitted to obtain a first image; performing, by the first processor, image sampling on the image to be transmitted to obtain a second image; transmitting, by the first processor, the first image and the second image to a virtual reality apparatus; receiving the first image and the second image by the virtual reality apparatus and processing the first image and the second image by the virtual reality apparatus to obtain an image to be displayed; and displaying the image to be displayed by the virtual reality apparatus.

Abstract: Embodiments of present invention provide a resistive random-access memory (RRAM) cell. The RRAM cell includes a bottom electrode; a metal oxide layer, the metal oxide layer having a central portion that is in direct contact with the bottom electrode, a peripheral portion that is nonplanar with the central portion, and a vertical portion between the central portion and the peripheral portion; and a top electrode directly above the metal oxide layer. A method of manufacturing the RRAM cell is also provided.

Abstract: A nonlinear crystal including stacked strontium tetraborate SrB4O7 (SBO) crystal plates that are cooperatively configured to create a periodic structure for quasi-phase-matching (QPM) is used in the final frequency doubling stage of a laser assembly to generate laser output light having a wavelength in the range of about 180 nm to 200 nm. One or more fundamental laser beams are frequency doubled, down-converted and/or summed using one or more frequency conversion stages to generate an intermediate frequency light with a corresponding wavelength in the range of about 360 nm to 400 nm, and then the final frequency converting stage utilizes the nonlinear crystal to double the frequency of the intermediate frequency light to generate the desired laser output light at high power. Methods, inspection systems, lithography systems and cutting systems incorporating the laser assembly are also described.

Abstract: Embodiments of present invention provide a resistive random-access memory (RRAM) cell. The RRAM cell includes a bottom electrode; a metal oxide layer, the metal oxide layer having a central portion that is in direct contact with the bottom electrode, a peripheral portion that is nonplanar with the central portion, and a vertical portion between the central portion and the peripheral portion; and a top electrode directly above the metal oxide layer. A method of manufacturing the RRAM cell is also provided.

Abstract: An inspection system may include an illumination source to generate an illumination beam, illumination optics to direct the illumination beam to a sample at an off-axis angle along an illumination direction, and collection optics to collect scattered light from the sample in a dark-field mode, where the scattered light from the sample includes surface haze associated with light scattered from a surface of the sample, and where at least a at least a portion of the surface haze has elliptical polarizations. The system may further include pupil-plane optics to convert the polarizations of the surface haze across the pupil to linear polarization that is aligned parallel to a selected haze orientation direction. The system may include a linear polarizer to reject the surface haze aligned parallel to this haze orientation direction and a detector to generate a dark-field image of the sample based on light passed by the linear polarizer.

Abstract: An electronic device includes a cell, a circuit board, and a cell protection unit. The circuit board is provided in the electronic device and configured to control the electronic device. The circuit board is electrically coupled to the cell, and the cell protection unit is provided on the circuit board. The cell protection unit is integrated with the circuit board, so as to facilitate heat dissipation of the cell, prolong the service life of the cell, speed up the production cycle of the cell, and reduce the production cost of the cell.

Abstract: A method including forming an oxide layer on a first substrate and forming a second substrate on the oxide layer. Doping a first section of the second substrate while not doping a second section of the second substrate. Forming a first nano device on the second section of the second substrate and forming a second nano device on first section of the second substrate. Flipping the first substrate over to allow for backside processing of the substrate and forming at least one backside contact connected to the first nano device while backside contacts are not formed or connected to the second nano device.

Abstract: A nonlinear crystal grating assembly including two integral nonlinear crystal grating structures having inverted crystal axes and having parallel spaced-apart mesas with predetermined mesa widths arranged such that, when assembled in an interdigitated configuration, the mesas of the two grating structures form an alternating grating pattern that is aligned with a propagation direction of input light, thereby creating a periodic structure for quasi-phase-matching (QPM). The nonlinear crystal grating structures are formed using strontium tetraborate, lithium triborate or another nonlinear crystal material. The nonlinear crystal grating assembly is utilized in a laser assembly in which fundamental wavelengths are doubled and/or summed using intermediate frequency conversion stages, and then a final frequency converting stage utilizes the nonlinear crystal grating assembly to double or sum one or more intermediate light beam frequencies to generate laser output light at high power and photon energy levels.

Abstract: A nonlinear crystal including stacked strontium tetraborate SrB4O7 (SBO) crystal plates that are cooperatively configured to create a periodic structure for quasi-phase-matching (QPM) is used in the final frequency doubling stage of a laser assembly to generate laser output light having a wavelength in the range of about 180 nm to 200 nm. One or more fundamental laser beams are frequency doubled, down-converted and/or summed using one or more frequency conversion stages to generate an intermediate frequency light with a corresponding wavelength in the range of about 360 nm to 400 nm, and then the final frequency converting stage utilizes the nonlinear crystal to double the frequency of the intermediate frequency light to generate the desired laser output light at high power. Methods, inspection systems, lithography systems and cutting systems incorporating the laser assembly are also described.

Abstract: A nonlinear crystal grating assembly including two integral nonlinear crystal grating structures having inverted crystal axes and having parallel spaced-apart mesas with predetermined mesa widths arranged such that, when assembled in an interdigitated configuration, the mesas of the two grating structures form an alternating grating pattern that is aligned with a propagation direction of input light, thereby creating a periodic structure for quasi-phase-matching (QPM). The nonlinear crystal grating structures are formed using strontium tetraborate, lithium triborate or another nonlinear crystal material. The nonlinear crystal grating assembly is utilized in a laser assembly in which fundamental wavelengths are doubled and/or summed using intermediate frequency conversion stages, and then a final frequency converting stage utilizes the nonlinear crystal grating assembly to double or sum one or more intermediate light beam frequencies to generate laser output light at high power and photon energy levels.

Abstract: An electronic device includes a cell, a circuit board, and a cell protection unit. The circuit board is provided in the electronic device and configured to control the electronic device. The circuit board is electrically coupled to the cell, and the cell protection unit is provided on the circuit board. The cell protection unit is integrated with the circuit board, so as to facilitate heat dissipation of the cell, prolong the service life of the cell, speed up the production cycle of the cell, and reduce the production cost of the cell.