Abstract: A flexible multi-path RF adaptive tuning network switch architecture that counteracts impedance mismatch conditions arising from various combinations of coupled RF band filters, particularly in a Carrier Aggregation-based (CA) radio system. In one version, a digitally-controlled tunable matching network is coupled to a multi-path RF switch in order to provide adaptive impedance matching for various combinations of RF band filters. Optionally, some or all RF band filters include an associated digitally-controlled filter pre-match network to further improve impedance matching. In a second version, some or all RF band filters coupled to a multi-path RF switch include a digitally-controlled phase matching network to provide necessary per-band impedance matching. Optionally, a digitally-controlled tunable matching network may be included on the common port of the multi-path RF switch to provide additional impedance matching capability.

Abstract: Disclosed is a coated rubber particle, preparation thereof and its application as a plugging material in drilling fluids. The coated rubber particle comprises a rubber core and a coating layer, wherein the core has a fluorine content (at %) of 0-15%, the coating layer has a fluorine content (at %) of 30-80%, and the coated rubber particle has a 24-hour oil absorption rate of 4% or less. The coated rubber particle has good oil resistance, and is particularly suitable for use as a plugging material in drilling fluids, particularly oil-based drilling fluids.

Abstract: A pharmaceutical composition for dry powder inhalation is provided, including an active ingredient and a first pharmacologically acceptable excipient. The active ingredient includes avanafil or a pharmaceutically acceptable salt thereof. The first pharmacologically acceptable excipient includes amino acid, polysaccharide, phospholipid, polylactic acid, polylactic acid copolymer, or a combination thereof. In some embodiments of the present disclosure, a method of preparing a pharmaceutical composition for dry powder inhalation is further provided. The pharmaceutical composition for dry powder inhalation increases aerosol property, meets the requirements for inhalation administration and reduces onset time.

Abstract: A pharmaceutical composition for dry powder inhalation is provided, including an active ingredient and a first pharmacologically acceptable excipient. The active ingredient includes sildenafil or a pharmaceutically acceptable salt thereof. The first pharmacologically acceptable excipient includes amino acid, phospholipid, polylactic acid, polylactic acid copolymer, sugar alcohol, or a combination thereof. In some embodiments of the present disclosure, a method of preparing a pharmaceutical composition for dry powder inhalation is further provided. The pharmaceutical composition for dry powder inhalation increases aerosol property meets the requirements for inhalation administration and reduces onset time.

Abstract: A pharmaceutical composition for dry powder inhalation is provided, including an active ingredient and a first pharmacologically acceptable excipient. The active ingredient includes vardenafil or a pharmaceutically acceptable salt thereof. The first pharmacologically acceptable excipient includes amino acid, polysaccharide, phospholipid, polylactic acid, polylactic acid copolymer, or a combination thereof. In some embodiments of the present disclosure, a method of preparing a pharmaceutical composition for dry powder inhalation is further provided.

Abstract: A pharmaceutical composition for dry powder inhalation is provided, including an active ingredient and a first pharmacologically acceptable excipient. The active ingredient includes tadalafil or a pharmaceutically acceptable salt thereof. The first pharmacologically acceptable excipient includes amino acid, polysaccharide, phospholipid, polylactic acid, polylactic acid copolymer, or a combination thereof. In some embodiments of the present disclosure, a method of preparing a pharmaceutical composition for dry powder inhalation is further provided. The pharmaceutical composition for dry powder inhalation increases aerosol property meets the requirements for inhalation administration and reduces onset time.

Abstract: Systems and methods provide a bottom hole assembly for a wellbore that includes a drill bit and multiple drilling tools. The multiple drilling tools include multiple sensors configured to capture a multiple instances of a common measurement type at multiple locations along a drill string. The multiple drilling tools also include processing circuitry configured to compare the multiple instances of the common measurement type to determine a difference among the multiple instances. The processing circuitry is also configured to determine that the difference is greater than a threshold corresponding to an inference of high frequency torsional oscillation. Furthermore, the processing circuitry is further configured to send an indication of an occurrence of high frequency torsional oscillation in the bottom hole assembly.

Abstract: Methods and systems for a powertrain power management in a vehicle with an electric motor, and an engine are disclosed. The methods and systems involve a powertrain that is operatively coupled to the engine and the electric motor, and an optimizer module operatively coupled to the powertrain. The optimizer module receives an operator information to travel a route from a remote management module, receives current route information for the route from a mapping application in response to the operator information, measures current vehicle status information for the hybrid vehicle, and decides a power management strategy for the vehicle based on the current route information and the current vehicle status information.

Abstract: In an embodiment an interference cancellation method includes generating, by a first device, a first packet, wherein the first packet comprises a first group of elements, a second group of elements, and user data, the first group of elements being different from the second group of elements and sending, by the first device, the first packet to a second device by using at least one pair of subcarriers, wherein two subcarriers in the at least one pair of subcarriers are symmetrical with respect to a direct current subcarrier, and wherein the first packet is usable by the second device to cancel interference in the user data based on the first group of elements and the second group of elements.

Abstract: The present disclosure relates to a biocompatible, electrically conductive biomaterial capable of carrying the electrical potential of a cardiac impulse. The biomaterial comprises a conductive polymer and a biocompatible component. The conductive polymer comprising an aminomethoxybenzoic acid (AMBA) polymer. The present disclosure also relates to treatments, uses and devices using the biocompatible, electrically conductive biomaterial.

Abstract: Disclosed is a near eye display apparatus, comprising a display screen and an imaging system. The imaging system comprises a biconvex lens, a transflective plane mirror and a transflective curved mirror. The biconvex lens is configured to magnify a display image of the display screen; the transflective plane mirror is configured to receive imaging light from the biconvex lens and reflect same to the transflective curved mirror; and the transflective curved mirror is configured to converge the imaging light and reflect same to the position(s) where human eyes are located.

Abstract: The present disclosure discloses a speaker comprising a frame, a vibration system, a magnetic circuit system, and a flexible circuit board embedded in the bottom end of the frame; the vibration system and the magnetic circuit system are respectively fixed at both ends of the frame and collectively enclosed into a sound producing cavity; the magnetic circuit system comprising a lower clamping plate and a main magnet; the lower clamping plate comprising a lower clamping body, two rectangular through-holes and two first flanges; each first flange having a shape and size matching the corresponding rectangular through-hole; each of two first flaps spaced from the main magnet and forming the magnetic gap collectively; the speaker further comprising two breathable isolators fixed to the lower clamping body and covering each of the rectangular through-holes. FPC alignment installation is convenient, cost savings; the acoustic performance of the speaker is good.

Abstract: The present invention belongs to the field of medicinal chemistry, and particularly relates to a pleuromutilin derivative with a thiazole side chain and preparation and application. The pleuromutilin derivative with the thiazole side chain is a compound of formula 2 or a pharmaceutically acceptable salt thereof, and a solvent compound, enantiomer, diastereoisomer, tautomer, or mixture of any proportion of the compound of formula 2 or the pharmaceutically acceptable salt thereof, comprising racemic mixtures: The pleuromutilin derivative has good antibacterial activity, is particularly suitable for use as a novel antibacterial drug for animal or human systemic infection, and has good water solubility.

Abstract: The present invention provides an improved method and system for denoising high-frequency ultrasound based on a multipath matching pursuit algorithm. The method includes: acquiring a high-frequency ultrasound detection signal of a to-be-tested sample; constructing a discrete overcomplete dictionary according to the high-frequency ultrasound detection signal, and training the discrete overcomplete dictionary; reconstructing the high-frequency ultrasound detection signal by using a trained dictionary and using a multipath matching pursuit algorithm, and obtaining a global optimal atom; performing interpolation on the global optimal atom, and constructing a consecutive atomic library; and reconstructing the high-frequency ultrasound detection signal in the consecutive atomic library according to a parameter of the global optimal atom, to complete signal denoising.

Abstract: Provided in embodiments of the present application are an occlusion detection method for medical imaging, a medical imaging method, and a medical imaging system. The occlusion detection method for medical imaging includes: acquiring an image sequence, the image sequence including a plurality of images of an object in a time dimension; and according to at least one among confidence level change information and depth change information of a keypoint of the object in the plurality of images, determining an occlusion state of the keypoint.

Abstract: The present disclosure discloses a speaker comprising a frame, a vibration system, a magnetic circuit system, and a flexible circuit board; the magnetic circuit system comprising a lower clamping plate and a main magnet; the lower clamping plate comprising a lower clamping body, four rectangular through-holes and four first flanges; a portion of the lower clamping body located on the side of the rectangular through-hole away from the main magnet is square to and fixed to the frame and abuts against the flexible circuit board; the speaker further comprising four breathable isolators fixed to the lower clamping body and covering each of the rectangular through-holes. The speaker can be used in an environment with an open cavity in the sound producing cavity, with good leakage effect, low cost and excellent acoustic performance.

Abstract: Techniques and systems are provided for generating a three-dimensional facial model. For instance, a process can include: obtaining a frame, the frame including a face; obtaining a mesh 3D model of the face; generating facial texture information associated with the face based on the frame and the mesh 3D model; generating, based on the facial texture information, displacement map information; and applying the displacement map information to the mesh 3D model to generate a finetuned mesh 3D model.

Abstract: A keypoint detection method is provided for medical imaging, a medical imaging method and a medical imaging system. The keypoint detection method for medical imaging includes: receiving an image sequence, the image sequence comprising a plurality of images of an object; performing keypoint detection on the plurality of images separately, and generating a keypoint image sequence; performing keypoint occlusion detection on the images in the image sequence; and determining keypoint distribution information according to the keypoint image sequence and a result of the keypoint occlusion detection.

Abstract: Systems and techniques are provided for synthesizing facial features of a three-dimensional (3D) facial model. For example, a process can include obtaining a first frame, the first frame including a first portion of a face; generating a first facial feature corresponding to the first portion of the face; obtaining a second frame, the second frame including a second portion of the face, wherein the second portion of the face at least partially overlaps the first portion of the face; generating a one-dimensional second facial feature corresponding to the second portion of the face; generating a set of weights based on the one-dimensional second facial feature; and applying the set of weights to the first facial feature to generate a weighted facial feature.

Abstract: Techniques and systems are provided for generating a representation of a face. For instance, a process can include obtaining one or more images of a face. The process can further include generating an encoded expression representing an expression of the face, wherein predetermined characteristics of the face remain constant relative to the encoded expression. The process can further include mapping the encoded expression to a corresponding expression of a facial model. The process can further include generating the representation of the facial model based on the encoded expression.