Abstract: Magnetic inductors for microelectronics packages are provided. Magnetic inductive structures include a magnetic region, a magnetic region base region, and a conductive region that forms a channel within the magnetic region. The magnetic region has a different chemical composition than the base region. Additional structures are provided in which the magnetic region is recessed into a package substrate core. Further inductor structures are provided in which the conductive region includes through-core vias and the conductive region at least partially encircles a portion of a package substrate core. Additionally, methods of manufacture are provided for semiconductor packages that include magnetic inductors.

Abstract: A bidirectional Littrow two-degree-of-freedom grating interference measurement device based on double gratings includes a transmission two-dimensional grating and a reflection two-dimensional grating. A dual-frequency laser emitted by a light source passes through the transmission two-dimensional grating with a specific grating pitch to form four beams in X direction and Y direction, the four beams are incident on the reflection two-dimensional grating at a Littrow angle, and the four beams diffracted by the reflection two-dimensional grating return to the transmission two-dimensional grating in an incidence direction along the same path; different orders of transmission light of the four beams of light in different directions may form stable interference signals carrying displacement information, and the stable interference signals are received by a detector.

Abstract: A method and a device for compensating a surface error of a holographic grating substrate based on scanning and exposure technology relates to a technical field of grating development. The method and the device adopt surface error compensation technology based on phase modulation of interference fringes of a scanning beam interference lithography system. The method and the device solve a poor grating diffraction wavefront quality caused by a surface processing error in a field of holographic grating research and improves full-aperture diffraction wavefront quality of a grating.

Abstract: Provided is a wearable display device. The wearable display device includes a display panel, comprising a display region and a peripheral region surrounding the display region; a plurality of light-emitting elements, configured to emit light to be irradiated to eyes of a user; a lens assembly, disposed on a light-exiting side of the display panel, the lens assembly comprising a lens mount and a lens within the lens mount, a light transmittance of the lens mount being greater than a threshold; and a plurality of photoelectric sensor assemblies in the peripheral region.

Abstract: An electronic device such as a voice-controlled speaker may have an array of strain gauges and light-emitting diodes. The light-emitting diodes may be configured to display dynamically adjustable button icons overlapping the strain gauges. Force measurements from the strain gauges may be used to adjust speaker output and other device operations.

Abstract: A device, method, and system for signal distortion pre-correction, and a composite system are disclosed. The device-includes: a signal distortion correction network module, a correction parameter trainer, a data collection module connected to an external power amplifier module, and a first conversion module. The data collection module is configured to perform time-division collection on output signals of channels of the power amplifier module and output analog feedback signals to the first conversion module. The first conversion module is configured to convert the analog feedback signals into digital feedback signals. The correction parameter trainer is configured to determine a correction parameter according to the digital feedback signals and a forward signal inputted. The signal distortion correction network module is configured to correct the forward signal based on the correction parameter and output a pre-corrected signal.

Abstract: The embodiments of the disclosure provide a method, apparatus, device and storage medium for presenting information, which relate to the technical field of computers. The method includes: obtaining object search information, in response to the object search information being object category information, determining a target object category corresponding to the object search information, and presenting object information of a plurality of target objects corresponding to the target object category in a search result presentation page; where all the plurality of target objects are different, and object information of a target object includes object attribute information and image resource information of the target object. By employing the above technical solution, when the user is searching the object category, object information of a plurality of target objects different from each other corresponding to the target object category is presented in the search result page.

Abstract: In some embodiments, a method generates a reward function for an adaptive bitrate function that is based on a bandwidth and profiles in a profile ladder for a current segment of content. The reward function indicates a first profile should be selected for the current segment. The method performs a quality change analysis to select a second profile from the profile. The quality change analysis analyzes a quality change that is based on a previously selected profile from a prior segment and profiles in the profile ladder. The second profile is requested from the profile ladder for the current segment.

Abstract: An image acquisition method applied to a first electronic device, and the first electronic device includes N first cameras, N being an integer greater than or equal to 3. The image acquisition method includes: firstly, receiving, by the first electronic device, first position information from a second electronic device, the first position information being position information of eyes of a viewer of the second electronic device; then, selecting, by the first electronic device, K first cameras from the N first cameras based on the first position information, K being an integer greater than or equal to 2 and less than N; then, acquiring, by the first electronic device, images by using the K first cameras.

Abstract: In some embodiments, a method generates a reward function for an adaptive bitrate function that is based on a bandwidth and profiles in a profile ladder for a current segment of content. The reward function indicates a first profile should be selected for the current segment. The method performs a quality change analysis to select a second profile from the profile. The quality change analysis analyzes a quality change that is based on a previously selected profile from a prior segment and profiles in the profile ladder. The second profile is requested from the profile ladder for the current segment.

Abstract: Disclosed is a method for predicting a lightning outage rate of a high-speed railway contact system based on a lightning location, including the steps: (1) evaluating location errors of cloud-to-ground lightning flashes along a high-speed railway line; (2) evaluating a detection efficiency of the cloud-to-ground lightning flashes along the high-speed railway line; (3) calculating a ground flash density along the high-speed railway line; (4) fitting a cumulative probability function of the lightning current amplitudes along the high-speed railway line; and (5) constructing a calculation model for the lightning outage rate of the high-speed railway contact system.

Abstract: A method and a system for rhythmic motion control of a robot based on a neural oscillator, including: acquiring a current state of the robot, and a phase and a frequency generated by the neural oscillator; and obtaining a control instruction according to the acquired current state, phase and frequency and a preset reinforcement learning network so as to control the robot. The preset reinforcement learning network includes an action space, a pattern formation network and the neural oscillator. A control structure designed by the present disclosure, which is composed of the neural oscillator and the pattern formation network, can ensure formation of an expected rhythmic motion behavior; and meanwhile, a designed action space for joint position increment can effectively accelerate the training process of rhythmic motion reinforcement learning, and solve a problem that design of the reward function is time-consuming and difficult in learning with existing model-free reinforcement learning.

Abstract: Disclosed are a passive triggered-power electronic tap-changer device and a contact device. The power electronic tap-changer device comprises: two taps, a main contact, two auxiliary contacts, two trigger contacts, an output terminal, two thyristors, and four voltage divider resistors, which can achieve the passive triggering of a power electronic switch by means of controlling the auxiliary contacts and the trigger contacts. Provided in the present invention is a contact device for the passive triggered-power electronic tap-changer, comprising: at least two stationary contacts, a main contact, two thyristor trigger contacts, two thyristor auxiliary contacts, and a drive shaft, wherein the main contact, the thyristor trigger contacts, and the thyristor auxiliary contacts are fixed to the drive shaft, the contact device can switch the power electronic switch to different stationary contacts by means of controlling the rotation of the drive shaft, and maintains the switching time sequence of passive triggering.

Abstract: Disclosed are a grating displacement measurement device and a grating displacement measurement method using a double-layer floating reading head, a medium, and an apparatus. A first measurement grating group is arranged on two first side edges of a substrate working surface, and a second measurement grating group is symmetrically arranged on both sides of a first reference line and close to a light-through member. A reading component is provided between a first measurement grating and a second measurement grating arranged on the same side, and each reading component is used to collect a first position information of the first measurement grating and a second position information of the second measurement grating. In the technical solutions, by using multi-channel position information output by two reading components in combination with a displacement solution algorithm.

Abstract: A heterodyne two-dimensional grating measuring device and measuring method thereof includes a light source, a reading head, a photoelectric receiving module, and a processor. The light source is configured to generate two beams of linearly polarized light having characteristics of overlapping, polarization orthogonal, and fixed frequency difference. The reading head is configured to receive the two beams of the linearly polarized light, the two beams of the linearly polarized light are respectively incident on a surface of a moving two-dimensional measuring grating to generate ±1-order diffracted lights of two dimensions, and the ±1-order diffracted lights are respectively incident to the photoelectric receiving module through the reading head.

Abstract: A child carrier includes: a seat portion; a buckle movably provided on the seat portion; a backrest portion connected to the seat portion and extending upward, the backrest portion having a plurality of adjustment holes formed therein from bottom to top; and a shoulder strap having a fixed end and a free end, the fixed end being fixed on a rear side of the backrest portion, the free end passing through one of the plurality of adjustment holes and being removably connected to the seat portion.

Abstract: Disclosed are a power device and a photovoltaic power generation device. The power device comprises a case, a first power board, and a second power board, the first power board is arranged in the case, and a first boosting module and an inverter module are arranged on the first power board; the second power board is arranged in the case, the second power board is electrically connected to the first power board, and a second boosting module is arranged on the second power board. According to the technical solution of the present invention, the rated power generation power of the photovoltaic power generation device can be increased, and the flexibility for clients is improved.

Abstract: The present invention relates to a flavor nanoemulsion comprising a surfactant system comprising a polyoxyethylene sorbitan fatty acid ester and a polyglycerol ester of fatty acids (PGE), a non-polar phase comprising a flavor oil, and a polar phase. The invention further relates to a flavored beverage comprising the flavor nanoemulsion according to the invention.

Abstract: A threading sealing box includes a box body and a threading assembly, and an opening is formed in the box body, a mounting groove is formed in a side wall of the box body, the threading assembly comprises a threading plate assembly and a threading body, the threading plate assembly is slidably arranged in the mounting groove so as to slide into or slide out of the mounting groove, a penetrating hole is formed in the threading plate assembly, the threading body is arranged on the threading plate assembly, and the threading body communicates with the penetrating hole. A cable penetrating through the threading body can be circumferentially sealed by the threading body, thereby effectively reducing the water leakage risk; the cable does not need to be locked by using accessories such as a waterproof terminal, such that the operation is simple.

Abstract: Various embodiments disclosed relate to novel methods of fabricating 3-D Li ion batteries using direct nanoimprint lithography. The present invention includes methods of fabricating high surface area electrodes, including imprint patterning of high aspect ratio parallel grating style electrodes. The method includes coating a substrate with an ink containing nanoparticles and subsequently annealing the ink into a desired pattern.