Abstract: This application provides a method for saving a ciphertext and an apparatus. The method includes: obtaining an encryption instruction, where the encryption instruction instructs to encrypt a file in an external memory; obtaining an eigenvalue of a first account identifier based on the encryption instruction; encrypting a first key by using the eigenvalue of the first account identifier to generate a first ciphertext, where the first key is used to encrypt a second key, and the second key is used to encrypt a first file in the external memory; encrypting the eigenvalue of the first account identifier to generate a second ciphertext; and storing the first ciphertext and the second ciphertext in a non-erasable partition.

Abstract: Devices, systems, and methods are provided for on-target rate optimization for video.

Abstract: Set forth herein are pellets, thin films, and monoliths of lithium-stuffed garnet electrolytes having engineered surfaces. These engineered surfaces have a list of advantageous properties including, but not limited to, low surface area resistance, high Li+ ion conductivity, low tendency for lithium dendrites to form within or thereupon when the electrolytes are used in an electrochemical cell. Other advantages include voltage stability and long cycle life when used in electrochemical cells as a separator or a membrane between the positive and negative electrodes. Also set forth herein are methods of making these electrolytes including, but not limited to, methods of annealing these electrolytes under controlled atmosphere conditions. Set forth herein, additionally, are methods of using these electrolytes in electrochemical cells and devices. The instant disclosure further includes electrochemical cells which incorporate the lithium-stuffed garnet electrolytes set forth herein.

Abstract: A power tool includes a motor, a speed regulation mechanism, a driver circuit, and a control module. The motor includes a stator winding and a rotor. The speed regulation mechanism is at least used for setting a target rotational speed of the motor. The driver circuit is used for delivering electrical energy provided by a power supply device from a direct current bus to the motor, where the driver circuit includes multiple electronic switches connected between the power supply device and the motor. The control module is configured to calculate a voltage vector according to a measured rotational speed of the motor, a phase current of the stator winding, and the target rotational speed and overmodulate the voltage vector to output a pulse-width modulation (PWM) signal to the driver circuit. A per-unit value of an amplitude of the voltage vector ranges from 0 to 1.15.

Abstract: Devices, systems, and methods are provided for on-target rate optimization for video.

Abstract: An oxygen inhalation nasal prong device, including a catheter assembly, a nasal prong assembly, a lanyard assembly and a neck strap assembly, where the catheter assembly is a hollow tubular structure; the nasal prong assembly is arranged at one end of the catheter assembly, the other end of the catheter assembly is configured to communicate with an oxygen supply device, and the nasal prong assembly is connected with the catheter assembly in a through connection way; the lanyard assembly is arranged on the nasal prong assembly, and the lanyard assembly is configured to be sleeved on a head of a patient, so that the nasal prong assembly is fixed at a nostril of the patient; the neck strap assembly is configured to fix the other end of the catheter assembly to neck of the patient.

Abstract: In one embodiment, a method includes using one or more cameras of a mobile computing device to capture one or more images of a first user wearing a VR display device in a real-world environment. The mobile computing device transmits a pose of the mobile computing device with respect to the VR display device to a VR system. The mobile computing device receives from the VR system a VR rendering of a VR environment. The VR rendering is from the perspective of the mobile computing device with respect to the VR display device. The method includes segmenting the first user from the one or more images and generating, in real-time responsive to capturing the one or more images, a MR rendering of the first user in the VR environment. The MR rendering of the first user is based on a compositing of the segmented one or more images of the first user and the VR rendering.

Abstract: A computer-implemented method includes receiving, by a processor, an updated version of a computer program that includes several source code changes. A compiler preprocesses the source code changes for a target computing platform. The preprocessing includes identifying a compile time condition associated with one or more computer instructions enclosed by a macro, determining a current value of the compile time condition at the time of compiling, and determining corresponding object code based on the current value. Further, a macro information record for the macro is generated that includes the compile time condition, the current value, and an identification of the computer instructions. Further, a linker preprocesses the source code changes. This preprocessing includes determining that the object code is not included in an executable file, and updating the macro information record to indicate that the macro is not included in the executable file.

Abstract: Devices, systems, and methods are provided for audience recognition. A method may include receiving over-the-top (OTT) advertisement impression data comprising metadata and content of advertisement bid requests, the metadata indicative of scheduled OTT media presentation; receiving user activity data indicative of day-part times when viewers watch content absent from the OTT advertisement impression data; generating, based on the OTT advertisement impression data, a first demographic probability vector; generating, based on the user activity data, a second demographic probability vector; generating, based on a combination of the first demographic probability vector and the second demographic probability vector, a third demographic probability vector, each entry of the third demographic probability vector indicative of a third probability that a viewer is in a respective age range; and generating an indication of the third demographic probability vector.

Abstract: A table tool includes a table, a saw blade, a motor, a controller, a sensing device and a first switch. The table has a work plane on which a workpiece is placed. The saw blade acts on the workpiece. The motor drives the saw blade to rotate. The controller is used for controlling rotation of the motor. The sensing device is electrically connected to the controller and used for sensing a state of the workpiece and outputting a first signal to the controller. The first switch is used for a user to select a working mode from at least two working modes of the table tool. When the table tool is in a first working mode, the controller is configured to adjust a rotational speed of the motor to be a first rotational speed based on an acquired first signal or a working parameter of the motor.

Abstract: Provided are a time and frequency control method and system for optical comb. The method includes: controlling an optical comb measuring system to start and to generate an optical comb; obtaining monitoring data, wherein the monitoring data comprises a working temperature, a mode-locked frequency and a light pump power, wherein the mode-locked frequency comprises a repetition frequency and a carrier envelope phase locked at the end of starting the optical comb measuring system; determining whether an offset of the mode-locked frequency exceeds a self-feedback adjustment range of a hardware adjustment circuit; and in response to any of the repetition frequency and the carrier envelope phase exceeds the self-feedback adjustment range, adjusting the working temperature and the light pump power until the mode-locked frequency returns back into the self-feedback adjustment range.

Abstract: The present application relates to the technical field of wastewater treatment and rapid pollutant detection, in particular to a chitosan-polyacrylamide composite porous hydrogel, preparation and use thereof, and a metal ion-adsorbing and detecting reagent and method. The chitosan-polyacrylamide composite porous hydrogel of the present application is prepared by in situ polymerization of a chitosan sol, an acrylamide, a crosslinking agent and a surfactant into a mixed solution comprising liquid droplets, followed by steps of curing, washing, and freeze-drying. The present application further provides a metal ion-detecting reagent, which is obtained by adsorbing a color developing agent into the chitosan-polyacrylamide composite porous hydrogel as described above, wherein the color developing agent is a dye that changes color when encountering metal ions. The chitosan-polyacrylamide composite porous hydrogel of the present application has balanced mechanical properties and porosity.

Abstract: A vehicle is disclosed that includes: a passenger seating area; a seat that is repositionable (e.g., movable, slidable) within the passenger seating area; an electromechanical system that is located beneath the seat and which is configured to support movement and/or reconfiguration of the seat; and a storage compartment that defines a receptacle for at least one personal accessory. The storage compartment is configured to conceal the electromechanical system to reduce the visibility thereof and is unitary in construction. The storage compartment is removably connected to the seat such that the storage compartment is fixed in relation to the seat but movable concomitantly with the seat during repositioning of the seat within the passenger seating area.

Abstract: Some embodiments may include a packaged laser diode assembly, comprising: a length of optical fiber having a core and a polymer buffer in direct contact with the core, the length of optical fiber having a first section and a second section, the first section of the length of optical fiber including a tip of an input end of the optical fiber, wherein the polymer buffer covers only the second section of the first and second sections; one or more laser diodes to generate laser light; means for directing a beam derived from the laser light into the input end of the length of optical fiber; a light stripper attached to the core in the first section of the length of optical fiber. Other embodiments may be disclosed and/or claimed.

Abstract: Dictionary learning method and means for zero-shot recognition can establish the alignment between visual space and semantic space at category layer and image level, so as to realize high-precision zero-shot image recognition. The dictionary learning method includes the following steps: (1) training a cross domain dictionary of a category layer based on a cross domain dictionary learning method; (2) generating semantic attributes of an image based on the cross domain dictionary of the category layer learned in step (1); (3) training a cross domain dictionary of the image layer based on the image semantic attributes generated in step (2); (4) completing a recognition task of invisible category images based on the cross domain dictionary of the image layer learned in step (3).

Abstract: A covered stent(20) is provided, including a stent body(21) and a filter membrane(22). The stent body(21) has a proximal end(211) and a distal end(212). The proximal end(211) is configured to be arranged upstream in the blood vessel with respect to the distal end(212). The filter membrane(22) has a mounting portion(222) and a free portion(221). The mounting portion(222) is connected with the stent body(21), and the free portion(221) is connected with the mounting portion(222) and free from the stent body(21).

Abstract: Provided is an embolic protection device with dual-layer filter meshes, including an elastic base frame, a first filter mesh and a second filter mesh. The two ends of the first filter mesh are the first open end and the first closed end respectively. The distance between the first closed end and the elastic base frame is greater than the distance between the first open end and the elastic base frame. The first open end is connected with the elastic base frame, and the first filter mesh is provided with a plurality of first filtering holes. The second filter mesh is provided with a plurality of second filtering holes.

Abstract: A computer-implemented method includes receiving, by a processor, an updated version of a computer program that includes several source code changes. A compiler preprocesses the source code changes for a target computing platform. The preprocessing includes identifying a compile time condition associated with one or more computer instructions enclosed by a macro, determining a current value of the compile time condition at the time of compiling, and determining corresponding object code based on the current value. Further, a macro information record for the macro is generated that includes the compile time condition, the current value, and an identification of the computer instructions. Further, a linker preprocesses the source code changes. This preprocessing includes determining that the object code is not included in an executable file, and updating the macro information record to indicate that the macro is not included in the executable file.

Abstract: A computer-implemented method includes preprocessing, by a compiler, a plurality of macros in a computer program. Preprocessing a macro includes identifying a compile time condition associated with the macro. Preprocessing the macro further includes determining a current value of the compile time condition at the time of compiling a computer instruction and a previous value of the compile time condition. Preprocessing the macro further includes determining a set of computer instructions enclosed by the macro. The method further includes storing a macro information record that includes the compile time condition, the current value and the previous value of the compile time condition, and an identification of the set of computer instructions enclosed by the macro.

Abstract: A power tool includes a housing, a drive motor, an energy source interface, a first switch, a second switch, and a control unit. The energy source interface is used for access to an energy source to provide a power supply for the drive motor. The first switch is disposed on a power supply circuit of the power supply and is capable of controlling the drive motor to rotate in a full power output mode. The second switch is disposed on a power supply circuit of the power supply and is capable of controlling the drive motor to rotate in a variable power mode. The control unit is capable of controlling the drive motor to rotate in the full power output mode when the first switch is turned on and of controlling the drive motor to rotate in a variable power output mode when the second switch is turned on.