Abstract: Systems and methods for regulating the speed of movement of virtual objects presented by a wearable system are described. The wearable system may present three-dimensional (3D) virtual content that moves, e.g., laterally across the user's field of view and/or in perceived depth from the user. The speed of the movement may follow the profile of an S-curve, with a gradual increase to a maximum speed, and a subsequent gradual decrease in speed until an end point of the movement is reached. The decrease in speed may be more gradual than the increase in speed. This speed curve may be utilized in the movement of virtual objections for eye-tracking calibration. The wearable system may track the position of a virtual object (an eye-tracking target) which moves with a speed following the S-curve. This speed curve allows for rapid movement of the eye-tracking target, while providing a comfortable viewing experience and high accuracy in determining the initial and final positions of the eye as it tracks the target.

Abstract: A wearable device may include a head-mounted display (HMD) for rendering a three-dimensional (3D) virtual object which appears to be located in an ambient environment of a user of the display. The relative positions of the HMD and one or more eyes of the user may not be in desired positions to receive, or register, image information outputted by the HMD. For example, the HMD-to-eye alignment may vary for different users and may change over time (e.g., as a given user moves around or as the HMD slips or otherwise becomes displaced). The wearable device may determine a relative position or alignment between the HMD and the user's eyes by determining whether features of the eye are at certain vertical positions relative to the HMD. Based on the relative positions, the wearable device may determine if it is properly fitted to the user, provide feedback on the quality of the fit to the user, and take actions to reduce or minimize effects of any misalignment.

Abstract: A prediction method for changes of physical parameters after earthquakes includes: obtaining a precipitable water vapor after an earthquake in a target monitoring area during a historical period; verifying the accuracy of the precipitable water vapor collected in the historical period; obtaining thermal anomaly data of the land surface temperature after the earthquake in the target monitoring area during the historical period; determining a time difference between peak of the precipitable water vapor and peak of the thermal anomaly of the land surface temperature; when the earthquake occurs again in the target monitoring area, detecting a time point corresponding to the peak of the thermal anomaly of the land surface temperature in the target monitoring area, adding the time point to the time difference to obtain a predicted time point of the peak of precipitable water vapor, and outputting the predicted time point as a time point of secondary disaster.

Abstract: A wearable device may include a head-mounted display (HMD) for rendering a three-dimensional (3D) virtual object which appears to be located in an ambient environment of a user of the display. The relative positions of the HMD and one or more eyes of the user may not be in desired positions to receive, or register, image information outputted by the HMD. For example, the HMD-to-eye alignment may vary for different users and change over time (e.g., as a given user moves around or as the HMD slips or otherwise becomes displaced). The wearable device may determine a relative position or alignment between the HMD and the user's eyes. Based on the relative positions, the wearable device may determine if it is properly fitted to the user, may provide feedback on the quality of the fit to the user, and may take actions to reduce or minimize effects of any misalignment.

Abstract: Provided is a material for use in a hydrogen storage structure, a hydrogen storage single tube, and a material composition for a hydrogen storage structure used for the preparation of the material for use in the hydrogen storage structure and the hydrogen storage single tube. The hydrogen storage single tube is provided with a honeycomb- shaped high pressure hydrogen storage structure with a micron-sized pore diameter and is lightweight. A hydrogen storage structure having a pore diameter of 150 ?m and a pipe wall thickness of 35 ?m has an ultimate pressure of >200 MPa, a Rockwell hardness of 86-89, a high temperature resistance of >1900° C., a low temperature resistance of <?260° C., low thermal conductivity, high temperature thermal insulation, and strong acid and alkali resistance. In a high density hydrogen work atmosphere and a complicated dynamic environment, the high pressure hydrogen storage structure is very stable.

Abstract: The present disclosure discloses a method for directed design and regulation of fermented food based on flavor group and its application, belonging to the fields of biology and food technology. The method involves the analysis of a significant number of fermented food samples, resulting in the identification of 20 core flavor components and six highly productive functional microorganisms associated with these core flavor components. Mathematical models have been constructed based on the correlation between the core flavor components and the microbial community structure. The method allows for the directed design and regulation of flavor components during the production of fermented food, ensuring stable production of fermented foods.

Abstract: The present application provides an output driving circuit and a memory. The output driving circuit includes: a signal input terminal inputting a positive input signal and a negative input signal complementary to each other; a pull-up output unit and a pull-down output unit connected to the signal input terminal, the positive input signal acting as an input signal of the pull-up output unit, and the negative input signal acting as an input signal of the pull-down output unit; at least one compensation unit connected in parallel with the pull-up or pull-down output unit; at least one pulse signal generation circuit, and generating a pulse signal, the pulse signal acting as a control signal of the compensation unit; and a signal output terminal connected to an output terminal of the pull-up output unit, an output terminal of the pull-down output unit and an output terminal of the compensation unit.

Abstract: A method and system for monitoring an extraordinary rainstorm based on multi-source data is provided. The method includes: acquiring a current moment of a target region; dividing a target time period into n rain events by means of a time window; inverting precipitable water vapor within each rain event; acquiring an accumulated rainfall per m hours within each rain event; computing, according to precipitable water vapor and the accumulated rainfall per m hours within each rain event, a mutual conversion speed V between the precipitable water vapor and the accumulated rainfall; indicating, if the conversion speed is greater than or equal to 1, that a rainfall is excessive and the extraordinary rainstorm is going to occur after the current moment; and indicating, if the conversion speed is less than 1, the rainfall is insufficient and the extraordinary rainstorm is about to end.

Abstract: Systems and methods for depth plane selection in display system such as augmented reality display systems, including mixed reality display systems, are disclosed. A display(s) may present virtual image content via image light to an eye(s) of a user. The display(s) may output the image light to the eye(s) of the user, the image light to have different amounts of wavefront divergence corresponding to different depth planes at different distances away from the user. A camera(s) may capture images of the eye(s). An indication may be generated based on obtained images of the eye(s), indicating whether the user is identified. The display(s) may be controlled to output the image light to the eye(s) of the user, the image light to have the different amounts of wavefront divergence based at least in part on the generated indication indicating whether the user is identified.

Abstract: A method and system for monitoring an extraordinary rainstorm based on multi-source data is provided. The method includes: acquiring a current moment of a target region; dividing a target time period into n rain events by means of a time window; inverting precipitable water vapor within each rain event; acquiring an accumulated rainfall per m hours within each rain event; computing, according to precipitable water vapor and the accumulated rainfall per m hours within each rain event, a mutual conversion speed V between the precipitable water vapor and the accumulated rainfall; indicating, if the conversion speed is greater than or equal to 1, that a rainfall is excessive and the extraordinary rainstorm is going to occur after the current moment; and indicating, if the conversion speed is less than 1, the rainfall is insufficient and the extraordinary rainstorm is about to end.

Abstract: The invention relates to a bromodomain inhibitor. The invention also provides compositions and formulations comprising such compounds, and methods of using and preparing such compounds.

Abstract: A prediction method for changes of physical parameters after earthquakes includes: obtaining a precipitable water vapor after an earthquake in a target monitoring area during a historical period; verifying the accuracy of the precipitable water vapor collected in the historical period; obtaining thermal anomaly data of the land surface temperature after the earthquake in the target monitoring area during the historical period; determining a time difference between peak of the precipitable water vapor and peak of the thermal anomaly of the land surface temperature; when the earthquake occurs again in the target monitoring area, detecting a time point corresponding to the peak of the thermal anomaly of the land surface temperature in the target monitoring area, adding the time point to the time difference to obtain a predicted time point of the peak of precipitable water vapor, and outputting the predicted time point as a time point of secondary disaster.

Abstract: [Problem] To develop a technique that can stabilize the higher-order structure of a nucleic acid and can be used in analysis of nucleic acid structure. [Solution] This guanosine derivative compound is represented by formula 1. In the formula, one of R1 and R2 represents H, and the other represents any of H, OH, OCH3, and F, R3 represents a functional group that is for detection and that has 19F, R4 represents an amine-protecting group, R5 represents a hydroxy group-protecting group, and R6 represents an introduction group that is to be introduced into a nucleic acid oligomer. This guanosine derivative compound can be introduced as a part of a nucleic acid sequence, and the introduced nucleic acid oligomer stabilizes the higher-order structure in a nucleic acid, and enables dynamic detection by 19F NMR.

Abstract: A battery cell and a battery are provided. The battery cell includes: a spiral-wound cell, a first current collector and a cover plate; the first current collector is connected to one end of the spiral-wound cell, the first current collector is provided with an electrolyte injection hole; the cover plate is connected to the first current collector, and the first current collector is located between the spiral-wound cell and the cover plate. The battery includes the battery cell. According to the present disclosure, the electrolyte injection hole is sealed by the cover plate, a sealing of the electrolyte injection hole is quite ensured. Thus, a possibility of electrolyte leakage is reduced, and a safety of the battery cell is guaranteed.

Abstract: A method and an apparatus for processing a forwarding entry are provided. The method for processing a forwarding entry includes: receiving an entry operation packet through a first data channel; parsing the entry operation packet to obtain forwarding entry operation information; and performing a target operation on a memory based on the forwarding entry operation information, where the target operation includes adding an entry, deleting an entry, or modifying an entry.

Abstract: The present invention provides an output driving circuit and a memory device. The output driving circuit is provided with a pull-up pre-amplification unit and a pull-down pre-amplification unit between a signal input terminal and a signal output terminal, the pull-up pre-amplification unit and the pull-down pre-amplification unit adjust the duty cycle ratios of the positive input signal and the negative input signal so that the duty cycle ratios of the output signals at the signal output terminal is the same as that of the input signal at the signal input terminal, which avoids the mismatch of output impedance under different output voltages, thereby eliminating the problem of duty cycle ratio deviation of the output signal that affects the signal quality.

Abstract: Systems and methods for depth plane selection in display system such as augmented reality display systems, including mixed reality display systems, are disclosed. A display(s) may present virtual image content via image light to an eye(s) of a user. The display(s) may output the image light to the eye(s) of the user, the image light to have different amounts of wavefront divergence corresponding to different depth planes at different distances away from the user. A camera(s) may capture images of the eye(s). An indication may be generated based on obtained images of the eye(s), indicating whether the user is identified. The display(s) may be controlled to output the image light to the eye(s) of the user, the image light to have the different amounts of wavefront divergence based at least in part on the generated indication indicating whether the user is identified.

Abstract: Disclosed herein are a content provisioning platform (150) and a system (100) that utilizes such a content provisioning platform (150). The content provisioning platform (150) includes: a selection engine (153) for selecting, in response to a request from a webpage (300) associated with an electronic transaction, inventory based on at least one of: a contextual attribute associated with the electronic transaction, a customer attribute associated with a user performing the electronic transaction, and a set of predefined rules. The inventory is selected from available inventory derived from at least one inventory provider during the electronic transaction. The webpage (300) is encoded in accordance with a content provisioning application programming interface (API) (140) associated with the content provisioning platform (150), the webpage including a contextual content display region (350) for displaying the selected inventory.

Abstract: The particle trapping device according to the present invention comprises: a lead-in channel; a flattened channel disposed on the downstream side of the lead-in channel; a rectangular channel disposed on the downstream side of the flattened channel; and a particle pit trap disposed at least on a first inner wall face of the rectangular channel, wherein the lead-in channel has a channel cross-section larger than a channel cross-section of the flattened channel; the flattened channel has a flat channel cross-section whose the width is longer than its height; the rectangular channel has a rectangular channel cross-section, and is provided with the first inner wall face, a second inner wall face opposed to the first inner wall face, a third inner wall face, and a fourth inner wall face opposed to the third inner wall face; and the lead-in channel, the flattened channel, the rectangular channel, and the particle pit trap are characterized by being configured in such a way that a portion of liquid containing target