Abstract: Provided is a polarization splitting device. The polarization splitting device includes a first optical element. The first optical element comprises a light incident surface, a polarization splitting interface and a reflective interface, and the polarization splitting interface and the reflective interface are correspondingly arranged. Incident light enters the first optical element through the light incident surface, and is split into first light and second light through the polarization splitting interface; the first light is incident on the reflective interface after being reflected by the polarization splitting interface, and exits from the first optical element after being reflected by the reflective interface; and the second light exits from the first optical element after being transmitted through the polarization splitting interface.

Abstract: Aspects and features provide system that accesses an activity log for a telecommunication system and detects, at the code level, sensitive information occurrences within the activity log. The system can anonymize the sensitive information occurrences, for example, using encryption. The system can generate different versions of the activity log including the sensitive information occurrences anonymized using encryption or removed. The system stores the activity logs in a log query database, or otherwise in some manner so that the system can receive log queries and display or print logs or portions of the logs needed to conduct troubleshooting, but with sensitive information occurrences obscured or removed. Different levels of access can be provided using role-based access control.

Abstract: The present disclosure relates to a secondary battery and a battery module. The secondary battery includes a case including a receiving space with an opening; a cap assembly connected to the case and close the opening; an electrode assembly disposed in the receiving space and including two end faces opposite to each other in a first direction perpendicular to an axial direction of the receiving space, and tabs extending from the end faces and two or more electrode units stacked in the axial direction; and a current collecting unit, including a first piece extending in the axial direction and a first current collecting piece connected to the first piece, the tab extends in the first direction and is connected to the first current collecting piece, and a portion of the tab connected to the first current collecting piece and the first current collecting piece are stacked in the axial direction.

Abstract: Described herein are methods, systems and computer-program products for intra- and inter-gait classification for both symmetric and asymmetric gait patterns using images.

Abstract: Provided is an array light source. The array light source includes light-emitting modules, a wavelength conversion apparatus configured to convert excitation light into excited light, a control apparatus configured to transmit a light modulation signal, and a light modulation apparatus configured to modulate the excited light based on the light modulation signal, emit the modulated light, and form a modulated image. Each light-emitting module is configured to emit the excitation light. The light-emitting modules include edge light emitting modules distributed along an edge of the array light source and center light-emitting modules surrounded by the edge light-emitting modules. A maximum luminous intensity of the edge light-emitting modules is greater than that of the center light-emitting modules.

Abstract: The present disclosure relates to a secondary battery and a battery module. The secondary battery includes a case including a receiving space with an opening; a cap assembly connected to the case and close the opening; an electrode assembly disposed in the receiving space and including two end faces opposite to each other in a first direction perpendicular to an axial direction of the receiving space, and tabs extending from the end faces and two or more electrode units stacked in the axial direction; and a current collecting unit, including a first piece extending in the axial direction and a first current collecting piece connected to the first piece, the tab extends in the first direction and is connected to the first current collecting piece, and a portion of the tab connected to the first current collecting piece and the first current collecting piece are stacked in the axial direction.

Abstract: A fly-eye lens group, a light source device, and a projection apparatus. The fly-eye lens group includes: a first fly-eye lens, a second fly-eye lens, and a third fly-eye lens. The first fly-eye lens is parallel to the second fly-eye lens, the first fly-eye lens is perpendicular to the third fly-eye lens, a double fly-eye structure is formed by the first fly-eye lens and the second fly-eye lens, and the third fly-eye lens and the first fly-eye lens also form a double fly-eye structure. The fly-eye lens group is used for homogenizing incident first excitation light, excited light, and second excitation light.

Abstract: A method and apparatus for executing data access requests in a distributed storage system are described. The method can include receiving, by a router node from a service application, a data access request to read data from one of a plurality of data storage nodes, the data access request comprising a key associated with the data, and generating a hash value from the key. The method can further include determining a data storage node of the plurality of data storage nodes that can satisfy the data access request based at least in part on the hash value generated from the key. The method further includes transmitting, to the data storage node, the data access request with the hash value, and receiving the data, the data storage node accessing the data using the hash value. The method can also include transmitting the data to the service application.

Abstract: A method for extracting 3,5-O-dicaffeoylquinic acid from Huangshan Gongju and its application in drugs for protecting against alcoholic liver damage. The 3,5-O-dicaffeoylquinic acid has the following structural formula: The present disclosure selects the medicinal and edible homology plant, Huangshan Gongju, as the research object. This plant is abundant in resources and the raw materials are easy to obtain. Specifically, the present disclosure uses 70% ethanol to extract Huangshan Gongju, uses the method of bioactivity-guided isolation, and uses a FLA-2025-10-120A preparative liquid chromatograph to isolate a phenolic compound from the active site of Gongju that resists alcoholic liver damage. The compound separation method is simple, quick, and easy to operate.

Abstract: An optical film and an optical imaging system are provided. The optical film includes a first lens layer, a first deflection layer, a reflection layer, a second deflection layer, and a second lens layer. The second lens layer is attached to a windshield. The reflection layer is configured to reflect an image light beam to form a first reflected light beam and the first lens layer and the first deflection layer are configured to amplify and/or deflect the first reflected light beam, to guide the first reflected light beam to a field-of-view direction. The second lens layer and the second deflection layer are configured to amplify and/or deflect a second reflected light beam, to guide the second reflected light beam to a first direction. The second reflected light beam is formed by that the windshield reflects the image light beam. The field-of-view direction is different from the first direction.

Abstract: An upper trunk training system may include a connection module including an actuation link configured to be coupled to a user's trunk, an output link coupled to the actuation link, and a base frame configured to be coupled to the user's trunk. An upper trunk training system may include a variable stiffness module including a cam fixed to a cam shaft coupled to the base frame, a cam follower coupled to the base frame and biased toward the cam. An upper trunk training system may include a stiffness control module including a sun gear fixed to the cam shaft, a planetary gear coupled to the output link of the connection module and meshed with the sun gear, a ring gear meshed with the planetary gear, and an electric machine coupled to the ring gear to rotate the ring gear to increase a stiffness of the upper trunk training system.

Abstract: The present disclosure presents improved treadmill control systems and methods. One such method comprises initiating a recording a video sequence of a walking exercise by a subject on a treadmill device; extracting intra-gait phases of the subject from the recorded video sequence using a video temporal alignment with a neural network; generating a series of treadmill belt control settings for the treadmill device corresponding to each phase of the gait pattern of the subject; and signaling the series of treadmill belt control settings to a motor controller of the treadmill device. Other methods and systems are also provided.

Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes an electrode assembly, a case and a cap assembly. The case has an accommodating cavity, and the electrode assembly is accommodated in the accommodating cavity. The electrode assembly comprises electrode units stacked in an axial direction of the accommodating cavity. The cap assembly comprises a cap plate and a vent piece, the cap plate is connected with the case and positioned at a side of the electrode assembly in the axial direction. The cap plate is provided with a through-hole, and the vent piece covers the through-hole. The cap plate has a first inner surface, the vent piece has a second inner surface, and a distance between the first inner surface and the electrode assembly is larger than a distance between the second inner surface and the electrode assembly.

Abstract: Provided is a light-source system, comprising excitation light source, first supplementary light source, first light-guiding assembly, wavelength conversion apparatus, and second light-guiding assembly. The excitation light source is for emitting excitation light; the first supplementary light source is for emitting first supplementary light. The first light-guiding assembly is for guiding the excitation light to the wavelength conversion apparatus. The wavelength conversion apparatus is for converting excitation light to excited light and irradiate onto the first light-guiding assembly. The first light-guiding assembly is for guiding excited light to irradiate onto the second light-guiding assembly. At least some components of the second light-guiding assembly are arranged on the light path from the first light-guiding assembly.

Abstract: The present disclosure relates to the technical field of energy storage devices, and provides a battery cell assembly, a battery module, and a battery pack. The battery cell assembly includes: at least two battery cells and an insulation film. The at least two battery cells are stacked. Each battery cell includes an electrode assembly and a battery housing. The electrode assembly is accommodated in the battery housing. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate. The insulation film surrounds a periphery of the at least two battery cells to wrap the at least two battery cells together.

Abstract: A projection display system includes a light source assembly, a wavelength adjusting assembly, and a modulation assembly. The light source assembly is configured to emit projected light. The wavelength adjusting assembly is disposed on an optical path of the projected light for adjusting spectrum of the projected light, and a ratio of luminous efficacy of adjusted projected light to luminous efficacy of monochromatic light corresponding to a dominant wavelength of the projected light is greater than a preset ratio, and color gamut of the adjusted projected light satisfies a preset color gamut coverage. The modulation assembly is disposed on a light exiting path of the wavelength adjusting assembly and configured to modulate light emitted by the wavelength adjusting assembly and output corresponding image light to form projection image.

Abstract: The present invention relates to the field of microbial culture, in particular to a method for expanding propagation and producing spores of Metarhizium rileyi and use thereof. In the present invention, Metarhizium rileyi Mr006 is sprayed on 2nd instar live larvae of Spodoptera litura treated with a sub-lethal dose of chlorantraniliprole to cause infection, the 2nd instar larvae of the Spodoptera litura infected with the Metarhizium rileyi Mr006 spores are concentrated into a sterile box, placed into an artificial climate box and continuously fed with an artificial feed until death or pupation, the infection condition of the insect bodies is observed, spores are collected after a 1st complete spore production, after the infected insects are subjected to moisture preservation, expanded propagation and culture are continuously performed, and the spores are repeatedly collected twice to obtain the maximum spore yield.

Abstract: A wear monitoring method of a polymer thrust bearing based on an ultrasonic reflection coefficient amplitude spectrum (URCAS), includes: selecting a corresponding delay block probe based on a material of a to-be-tested bearing, and setting corresponding parameters of a pulse generator; after collecting a primary echo from a surface of the delay block probe as a reference signal, placing the delay block probe in a designated region on a back of the to-be-tested bearing, and collecting time-domain echo signals from upper and lower surfaces of the bearing; establishing a propagation model of an ultrasonic signal in a polymer bearing, and calculating a theoretical URCAS based on the propagation model; calculating a measured URCAS; and constructing an objective function, and solving the objective function by using a differential evolution algorithm. A plurality of parameters of the polymer bearing is solved to meet a requirement for wear monitoring by adopting the method.

Abstract: The present disclosure provides a battery pack, including: a battery box, a plurality of battery modules, a cooling plate, and a buffering member. Each battery module includes a plurality of battery cells and a plurality of busbars. Each battery cell includes an electrode assembly and a battery housing. The battery cells are laid flat. When the electrode assembly is of a wound structure and is flat, and outer surfaces of the electrode assembly include two flat surfaces. The two flat surfaces are opposite to each other in a vertical direction. Alternatively, when the electrode assembly is of a laminated structure, a first electrode plate, a separator, and a second electrode plate are stacked in a vertical direction. Therefore, the electrode assembly of the battery cells applies a greatest expansion force in the vertical direction during charge and discharge.

Abstract: An LED display screen, comprising: an LED array, consisting of multiple LED light-emitting units and used for emitting a light; an optical diffusion film, provided at a light exit side of the LED array; a matrix shading frame, comprising multiple hollow shading gratings, the hollow shading gratings corresponding one-to-one to the LED light-emitting units; and a substrate, used for supporting the LED array and the matrix shading frame, where the light emitted by the LED light-emitting units, after running through the hollow shading gratings, is diffused to a viewer side via the optical diffusion film, and the LED light-emitting units emit the light towards the hollow shading gratings.