Abstract: Disclosed are a synchronization mechanism and a foldable terminal. In the synchronization mechanism, a first rotating component and a second rotating component are in transmission connection by using a first worm, a worm gear, and a second worm that are sequentially meshed, thereby implementing the synchronous rotation of the first rotating component and the second rotating component relative to a base. In addition, when the synchronization mechanism is applied to the foldable terminal, since an axial direction of the worm gear and a radial direction of the first worm and the second worm are consistent with a thickness direction of the body, and an axial size of the worm gear and radial sizes of the first worm and the second worm are relatively small, which is conducive to the light and thin design of the foldable terminal.

Abstract: The present disclosure discloses a method of promoting rice growth using artificial humic acid synthesized by catalysis of nanoscale Ferric oxide, belonging to the field of nanoscale agriculture. The present disclosure discloses a method for synthesizing artificial humic acid from waste biomass with catalysis of transition metal, including the following steps: adding a mixed solution of an alkali, a transition metal catalyst and water into a biomass raw material, and carrying out catalytic reaction at 160-250° C. for 6-48 hours. The artificial humic acid can accelerate germination of rice, effectively promote growth of the rice (the root activity is improved by 166.76% and the net photosynthetic rate is improved by 72.08%), improve the absorption of water and nutrients and the transport of nutrients by rice roots and improve the ability of rice to resist oxidative stress and salt stress.

Abstract: Compositions and methods for treating cancers are provided which comprise administering a combination of antineoplastic agents, wherein the combination comprises protein kinase inhibitor, anthracycline, nucleoside analog, apoptosis-inducing molecular therapeutic or alkylating agent chemotherapeutics and one or more nucleic acid molecules capable of down-regulating expression of at least one splice variant of the IG20 gene, and wherein not all splice variants of the IG20 gene are down-regulated. Preferably, the splice variant of the IG20 gene is a MADD splice variant and the nucleic acid molecules are siRNA, shRNA and antisense oligonucleotides which comprise a nucleic acid sequence complementary to a nucleic acid sequence of exon 13L of the MADD splice variant or to an mRNA transcript of exon 13L of the MADD splice variant.

Abstract: An audio identification method and apparatus are disclosed within the technical field of audio processing technology. The audio identification solution includes obtaining an original pitch sequence of a to-be-identified audio, where the original pitch sequence is used to indicate a frequency of the to-be-identified audio at each time point. The audio identification solution further includes dividing the original pitch sequence into a plurality of pitch sub-sequences, respectively identifying the original pitch sequence and the plurality of pitch sub-sequences, and combining the identification results. In doing so, the audio identification solution obtains a final identification result by dividing a long pitch sequence into a plurality of short pitch sequences, thus respectively identifying the long pitch sequence and the plurality of short pitch sequences, and combining identification results.

Abstract: A method of tracking a face includes determining a current frame from video stream data in response to receiving a face tracking instruction; detecting a position of a face in the current frame, and obtaining a historical motion trajectory of the face in the current frame; predicting the position of the face in the current frame based on the historical motion trajectory to obtain a predicted position of the face; obtaining a correlation matrix of the historical motion trajectory and the face in the current frame based on the predicted position and the detected position; and updating the historical motion trajectory based on the correlation matrix, and tracking the face in a next frame based on the updated historical motion trajectory.

Abstract: An audio data processing method and apparatus are provided. The method includes obtaining audio data. An overall spectrum of the audio data is obtained and separated into a singing voice spectrum and an accompaniment spectrum. An accompaniment binary mask of the audio data is calculated according to the audio data. The singing voice spectrum and the accompaniment spectrum are processed using the accompaniment binary mask, to obtain accompaniment data and singing voice data.

Abstract: Compositions and methods for treating cancers are provided which comprise administering a combination of antineoplastic agents, wherein the combination comprises protein kinase inhibitor, anthracycline, nucleoside analog, apoptosis-inducing molecular therapeutic or alkylating agent chemotherapeutics and one or more nucleic acid molecules capable of down-regulating expression of at least one splice variant of the IG20 gene, and wherein not all splice variants of the IG20 gene are down-regulated. Preferably, the splice variant of the IG20 gene is a MADD splice variant and the nucleic acid molecules are siRNA, shRNA and antisense oligonucleotides which comprise a nucleic acid sequence complementary to a nucleic acid sequence of exon 13L of the MADD splice variant or to an mRNA transcript of exon 13L of the MADD splice variant.

Abstract: The present invention relates to a technical field of 3D printing, and more particularly to a 3D printer spray nozzle structure and a method thereof for controlling speed and precision. According to the present invention, a feeding pipeline is embedded in an external shell, the feeding pipeline and an extruder are coaxially connected; the extruder is driven by a driving device, so as to rotate relative to the feeding pipeline. A rotation angle of the extruder relative to the feeding pipeline is controlled by rotation of a motor, for controlling a filament area actually sprayed by the extrude, in such a manner that printing speed and precision is controlled for suiting different requirements of different printing area. The present invention controls the printing speed and precision, for improving overall printing speed with precision requirements satisfied, and is applicable to 3D printer spray nozzle structure and controlling.

Abstract: A transcranial magnetic stimulation circuit, a transcranial magnetic stimulator and a magnetic impulse generation method thereof are provided, in which the circuit includes at least two inductance coils, a direct current, a charging and discharging circuit and a controller. The controller controls the inductance coils to synchronously generate magnetic impulses through an electronic switch. The method includes: coinciding central lines of the inductance coils with each other; controller outputting an impulse sequence to control the electronic switch to enable the inductance coils to synchronously generate magnetic impulses; and superposing the magnetic impulses to form the magnetic impulses required by the transcranial magnetic stimulator. The transcranial magnetic stimulator includes a pillow base and the transcranial magnetic stimulation circuit. A containing cavity is disposed in the pillow base.

Abstract: An audio data processing method and apparatus are provided. The method includes obtaining audio data. An overall spectrum of the audio data is obtained and separated into a singing voice spectrum and an accompaniment spectrum. An accompaniment binary mask of the audio data is calculated according to the audio data. The singing voice spectrum and the accompaniment spectrum are processed using the accompaniment binary mask, to obtain accompaniment data and singing voice data.

Abstract: The present invention relates to a technical field of 3D printing, and more particularly to a 3D printer spray nozzle structure and a method thereof for controlling speed and precision. According to the present invention, a feeding pipeline is embedded in an external shell, the feeding pipeline and an extruder are coaxially connected; the extruder is driven by a driving device, so as to rotate relative to the feeding pipeline. A rotation angle of the extruder relative to the feeding pipeline is controlled by rotation of a motor, for controlling a filament area actually sprayed by the extrude, in such a manner that printing speed and precision is controlled for suiting different requirements of different printing area. The present invention controls the printing speed and precision, for improving overall printing speed with precision requirements satisfied, and is applicable to 3D printer spray nozzle structure and controlling.

Abstract: An audio identification method and apparatus are disclosed within the technical field of audio processing technology. The audio identification solution includes obtaining an original pitch sequence of a to-be-identified audio, where the original pitch sequence is used to indicate a frequency of the to-be-identified audio at each time point. The audio identification solution further includes dividing the original pitch sequence into a plurality of pitch sub-sequences, respectively identifying the original pitch sequence and the plurality of pitch sub-sequences, and combining the identification results. In doing so, the audio identification solution obtains a final identification result by dividing a long pitch sequence into a plurality of short pitch sequences, thus respectively identifying the long pitch sequence and the plurality of short pitch sequences, and combining identification results.

Abstract: A resonant converter and its controlling method are provided. The resonant converter includes a bridge switching circuit receiving a DC input voltage through its power terminal, a resonant and transforming circuit, a rectifying and filtering circuit, and an over-current protecting circuit. The resonant and transforming circuit has at least one resonant capacitor charged/discharged in response to the switching of the bridge switching circuit. The rectifying and filtering circuit rectifies and filters outputs of the resonant and transforming circuit, and generates a driving voltage accordingly. The over-current protecting circuit is coupled to the power terminal and crosses over the resonant capacitor to form a clamp path. The over-current protecting circuit detects a current flowing through the resonant and transforming circuit or a load and determines whether to conduct/cut off the clamp path according to the detection result to limit a cross voltage of the resonant capacitor within a first voltage range.

Abstract: A parallel resonant converter including a control circuit and at least two resonant conversion circuits connected in parallel between an input bus and an output bus is provided by the invention. The control circuit is configured to provide a switching frequency signal to the at least two resonant conversion circuits. Moreover, the control circuit is further configured to control the voltage of the output bus to linearly vary along with the switching frequency signal in a rated range by using a linear current-balancing curve (gain-frequency), and thus achieving the purpose of current-balancing for the at least two resonant conversion circuits. The invention is capable of controlling the output voltage of the parallel resonant converter, so as to reduce the ripple on the output voltage of the power supply system.

Abstract: A resonant power conversion apparatus and a controlling method of the resonant power conversion apparatus are provided. The resonant power conversion apparatus includes a switch-based resonant converter and a controller. The switch-based resonant converter is configured to supply power to a load. The controller is coupled to the switch-based resonant converter and the load and configured to control switching of the switch-based resonant converter to regulate power conversion of the switch-based resonant converter. The controller has a voltage control loop and a current control loop. The controller detects a driving state of the load and enables one of the voltage control loop and the current control loop according to the detection result to adjust a switching frequency of the switch-based resonant converter.

Abstract: A resonant power conversion apparatus and a controlling method of the resonant power conversion apparatus are provided. The resonant power conversion apparatus includes a switch-based resonant converter and a controller. The switch-based resonant converter is configured to supply power to a load. The controller is coupled to the switch-based resonant converter and the load and configured to control switching of the switch-based resonant converter to regulate power conversion of the switch-based resonant converter. The controller has a voltage control loop and a current control loop. The controller detects a driving state of the load and enables one of the voltage control loop and the current control loop according to the detection result to adjust a switching frequency of the switch-based resonant converter.

Abstract: A parallel resonant converter including a control circuit and at least two resonant conversion circuits connected in parallel between an input bus and an output bus is provided by the invention. The control circuit is configured to provide a switching frequency signal to the at least two resonant conversion circuits. Moreover, the control circuit is further configured to control the voltage of the output bus to linearly vary along with the switching frequency signal in a rated range by using a linear current-balancing curve (gain-frequency), and thus achieving the purpose of current-balancing for the at least two resonant conversion circuits. The invention is capable of controlling the output voltage of the parallel resonant converter, so as to reduce the ripple on the output voltage of the power supply system.

Abstract: A resonant converter and its controlling method are provided. The resonant converter includes a bridge switching circuit receiving a DC input voltage through its power terminal, a resonant and transforming circuit, a rectifying and filtering circuit, and an over-current protecting circuit. The resonant and transforming circuit has at least one resonant capacitor charged/discharged in response to the switching of the bridge switching circuit. The rectifying and filtering circuit rectifies and filters outputs of the resonant and transforming circuit, and generates a driving voltage accordingly. The over-current protecting circuit is coupled to the power terminal and crosses over the resonant capacitor to form a clamp path. The over-current protecting circuit detects a current flowing through the resonant and transforming circuit or a load and determines whether to conduct/cut off the clamp path according to the detection result to limit a cross voltage of the resonant capacitor within a first voltage range.

Abstract: Use of a compound of formula (I) wherein R is an alicyclic group; an arylethyl group; or phenyl or benzyl substituted by halogen, lower alkyl, alkoxy, OH, NH2, NHalkyl, N(alkyl)2, CN or NO2; in the manufacture of a medicament for the therapy of hyperalgesic pain conditions and their symptoms.