Abstract: Embodiments of this application relate to a call system, an extension, and a host in the field of communication technologies. An example call system includes a host and an extension. A network side device and the host are connected through a network side link, and the host and the extension are connected through a first terminal side link. The extension exchanges a call data packet with the network side device through the first terminal side link and the network side link. The extension and the host transmit the call data packet through a second terminal side link in response to determining that call quality of the extension is lower than a quality threshold. The first terminal side link is different from the second terminal side link.

Abstract: An electronic device includes a speaker, an amplifier circuit, a level shift circuit, a switch and a processor. The speaker is configured to operate according to a driving signal. The amplifier is configured to receive an input signal provided by the processor and provide an output signal by adjusting the input signal. The level shift circuit is configured to provide an adjusted output signal by adjusting the output signal. The switch is configured to selectively transmit the output signal to the speaker for providing the driving signal according to an activation signal. The processor is configured to detect real-time characteristics of the adjusted output signal and provide the activation signal based on the real-time characteristics of the adjusted output signal.

Abstract: Disclosed is a non-blind-area multi-view panoramic stereo imaging device. The device comprises a front lens assembly or a plane mirror, an aspheric mirror, a middle lens assembly, a panoramic block, a rear lens assembly and an image surface which are longitudinally arranged along an optical axis. The aspheric mirror comprises a central hole and an annular reflecting surface. The panoramic block comprises a front central circular transmission surface, a front reflecting surface, a front transmission surface, a rear reflecting surface and a rear transmission surface. The front reflecting surface, the front transmission surface and the rear reflecting surface are all annular surfaces. The inner edge of the front reflecting surface is connected with the edge of the front central circular transmission surface.

Abstract: The present application provides a motor, a camera module and an electronic device. The motor includes: an upper cover; a base, cooperatively forming an accommodating space with the upper cover; a carrying assembly, arranged in the accommodating space, and configured to carry a lens of the camera module; one or more first coils, arranged in the accommodating space, and fixedly connected to the upper cover; and one or more magnets, arranged on the carrying assembly, and configured to cooperate with the one or more first coils to drive the carrying assembly to move relative to the upper cover. The carrying assembly is enabled to drive the lens to move.

Abstract: A speaker module includes a casing, a speaker unit and a loop tube. The speaker unit has a sound cavity, a first sound outlet and a second sound outlet. The speaker unit is disposed in the casing, and the speaker unit includes a diaphragm, and the diaphragm communicates with the first sound outlet. The loop tube is disposed in the casing, and the loop tube has a first end and a second end. The first end communicates with the sound cavity, and the second end communicates with the second sound outlet. The cross-sectional area of the second sound outlet and the loop tube is at least ten percent of the area of the diaphragm, and the ratio of the total length of the loop tube to the volume of the sound cavity is 2.5˜7.5.

Abstract: The present disclosure provides compositions that enable sustained release of a small molecule tyrosine kinase inhibitor, such as axitinib from a bioerodible polyester polymer implant for the treatment of disease. The composition is especially suitable for treating ophthalmic indications, such as neovascular age related macular degeneration and diabetic macular edema, by intravitreal injection of the implant. The implant is designed to be pre-loaded into a small diameter needle and injected via self-sealing scleral needle penetration at the pars plana. Small molecule tyrosine kinase inhibitors may be released from the implants over a period of one week to three years.

Abstract: A method for determining a transformation between frames of reference for two inertial measurement units (IMUs) is disclosed. The transformation includes biases associated with the measurements of each of the IMUs and the extrinsic details can include relative differences in the position and orientation of the IMUs. The IMUs may be mechanically coupled to a frame so that their movements are related. The IMUs can be coupled to a pair of displays in a head-mounted device (e.g., smart glasses) so that a display spacing between for a pair of stereoscopic displays can be accurately determined and adjusted to match the eyes of the user.

Abstract: A delay calibration circuit, a memory, and a clock signal calibration method are provided. The delay calibration circuit includes: a divided clock generation circuit, configured to receive an input external clock signal and output at least two channels of divided clock signals based on the external clock signal; a calibration circuit, connected to the divided clock generation circuit and configured to adjust delays of at least two channels of divided clock signals based on a trimming signal and output adjusted divided clock signals; and a detection circuit, connected to the calibration circuit and configured to detect pulse widths of the at least two channels of divided clock signals and generate the trimming signal based on the pulse widths.

Abstract: A surgical robotic arm control system and a control method thereof are provided. The surgical robotic arm control system includes a surgical robotic arm, an image capture unit, and a processor. The image capture unit obtains a first image. The processor obtains a plurality of identification object coordinates of a plurality of identification object images according to the first image, and executes a virtual environment model to calculate a plurality of virtual spinal process coordinates of a virtual spine model. The processor generates surgical robotic arm operation information according to movement trajectory of a virtual surgical robotic arm moving toward a plurality of virtual identification objects located at the plurality of virtual spinal process coordinates in the virtual environment model, and controls the surgical robotic arm according to the surgical robotic arm operation information and the plurality of identification object coordinates.

Abstract: An amplifier circuit includes an input terminal, configured to receive an input voltage; an output terminal, configured to output an output voltage; a multi-stage operational amplifier, coupled to the input terminal and the output terminal, and configured to amplify the input voltage to the output voltage, comprising a plurality of amplifiers; and a plurality of level-shifting networks, each coupled between two of the plurality of amplifiers, configured to reduce a gain error of each output of the plurality of amplifiers; and a feedback capacitor, coupled between the input terminal and the output terminal.

Abstract: Aspects of the subject disclosure may include, for example, training a first machine learning model based on a combination of labeled training data and unlabeled training data, the first machine learning model producing augmented training data, training a second machine learning model based on a combination of the labeled training data and the augmented training data, receiving, at a client device, customer information about a service degradation at a user equipment (UE) device of a customer in a cellular network, providing the customer information to the second machine learning model, receiving, at the client device, from the second machine learning model, information identifying a root cause of the service degradation, and modifying a network component of the cellular network or the UE device, based on the information identifying a root cause of the service degradation. Other embodiments are disclosed.

Abstract: The present application relates to a method for treating myopia with vipocetine, which can effectively prevent myopia and/or control the progression of myopia while being safe and free of obvious side effects, having good prospects for clinical application.

Abstract: The present disclosure provides a method for separating SSCs from a frozen testicular tissue, and belongs to the field of cell biology. In the present disclosure, the method includes the following steps: resuscitating a frozen testicular tissue, digesting the resuscitated testicular tissue with a collagenase IV and a DNase I until seminiferous tubules are exposed and tube walls become coarse; washing the digested testicular tissue with a DPBS, conducting centrifugation and culture until cells migrate; collecting the migrated cells, and enriching and purifying SSCs. The method can maintain a milieu interieur of the SSCs to the greatest extent, and therefore cell viability, and less cell damages. Therefore, the method can be used for the separation of SSCs from frozen testicular tissues.

Abstract: A method for treating a tumor or cancer by means of a treatment scheme of using endostatin in combination with induction of DNA double-strand breaks, and a medication. The method and composition are used for treating a tumor or cancer related to loss of p53 function, or a tumor or cancer occurring when p53 function is normal.

Abstract: The present invention provides a method for preventing and/or treating a NSAID-induced gastric ulcer. The method comprises administrating an effective amount of a lactic acid bacterium set to a subject. The lactic acid bacterium set comprises Lactobacillus plantarum GKD7 and Pediococcus acidilactici GKA4.

Abstract: A package structure is disclosed. The package structure includes a first substrate, a second substrate, a gap, and a directing structure. The second substrate is disposed under the first substrate. The gap is between the first substrate and the second substrate. The gap includes a first region and a second region. The first region is configured to accommodate a filling material. The directing structure is disposed in a flow path of the filling material and configured to reduce a migration of the filling material from the first region to the second region.

Abstract: Aspects of the subject disclosure may include, for example, receiving source information and destination information from a user device, receiving information defining an interactive application from the user device. determining, using network information of a mobility network, a navigation path from a source to a destination, the navigation path selected to enable continuous use of the interactive application with the user device on the mobility network during a journey from the source to the destination, and communicating navigation path information to the user device. Other embodiments are disclosed.

Abstract: A coating composition has 5-15% by weight of a polymeric binder selected from a polyester polyol, an acrylic polyol, an epoxy, silicone, a silicone hybrid and a fluoropolymer. The composition has 20-40% by weight of microparticles, where the microparticles are made of a polyamide, a polyethylene, a polypropylene, a polyurea, a polyurethane, a polymethyl methacrylate, a polystyrene or mixtures thereof and the microparticles have a mean particle diameter d50 size ranging from 5 ?m to 60 ?m. The composition has 2-12% by weight of nanoparticles, said nanoparticles are made of inorganic oxides with a primary particle size ranging from 5 nm to 50 nm; 0-15% by weight of a crosslinker having reactivity to the polymeric binder; 0-20% by weight of pigments and/or fillers, and 40-80% by weight of an organic solvent.

Abstract: The present application relates to a technical field of determining an irreversible demagnetization of a grain boundary diffusion NdFeB magnet, and more particularly, to a method for identifying an irreversible demagnetization of a grain boundary diffusion NdFeB magnet by magnetic field distribution. After applying a reverse magnetic field to a saturatedly magnetized grain boundary diffusion NdFeB magnet, if a number of magnetic poles on a non-diffusion face of the grain boundary diffusion NdFeB magnet is increased, it is determined that there is an irreversible demagnetization in the grain boundary diffusion NdFeB magnet.

Abstract: Provided is a microfluidic chip. The microfluidic chip includes a first substrate and a second substrate disposed opposite to each other and drive electrodes, first sensing electrodes and second sensing electrodes disposed on a side of the first substrate. A microfluidic channel is formed between the first substrate and the second substrate and configured to accommodate at least one droplet. Different drive voltage signals are applied to adjacent drive electrodes, so as to drive the at least one droplet to move. Detection signals are applied to the first sensing electrodes and the second sensing electrodes, and a position of the at least one droplet is determined according to a change in capacitance between one first sensing electrode and an electrode corresponding thereto and a change in capacitance between one second sensing electrode and an electrode corresponding thereto when the at least one droplet flows by.