Abstract: A video recording method and device, an electronic device and a storage medium are provided. The method includes: acquiring speed varying information of a speed-varied video, where the speed varying information is used to represent a playing speed change of the speed-varied video; performing reverse speed-varying processing on the speed-varied video according to the speed varying information to obtain an original speed video; displaying the original speed video, and synchronously performing video shooting to generate an original speed target video; and performing speed varying processing on the original speed target video according to the speed varying information to obtain a target speed-varied video.

Abstract: A video recording method and device, an electronic device and a storage medium are provided. The method includes: acquiring speed varying information of a speed-varied video, where the speed varying information is used to represent a playing speed change of the speed-varied video; performing reverse speed-varying processing on the speed-varied video according to the speed varying information to obtain an original speed video; displaying the original speed video, and synchronously performing video shooting to generate an original speed target video; and performing speed varying processing on the original speed target video according to the speed varying information to obtain a target speed-varied video.

Abstract: The present disclosure provides a video variable-speed playback method, an apparatus, an electronic device and a computer readable medium, and relates to the field of computer technology. The method includes: in response to a curve variable-speed instruction, acquiring constant-speed presentation timestamps and variable-speed playback speeds of first designated video frames in a video; converting the constant-speed presentation timestamps of the first designated video frames into variable-speed presentation timestamps; establishing a speed variation curve; fitting the speed variation curve into one or more straight line segments; based on a second designated video frame indicated by a variable-speed playback instruction, determining a corresponding constant-speed presentation timestamp; and determining a corresponding variable-speed presentation timestamp, and starting from the variable-speed presentation timestamp, playing the video at a variable-speed.

Abstract: The invention provides a device and a method for reinforcing weathered stone relics by using low temperature plasma to activate calcium hydroxide in a carbon dioxide atmosphere. Based on the low temperature plasma physics and the principles of the relics conservation, the invention applies the technology of low temperature plasma to relics conservation, and especially to the reinforcement of weathered stone relics by activating calcium hydroxide. According to the application, using low temperature plasma source loaded with carbon dioxide to active calcium hydroxide can realize the carbonation and precipitation of calcium hydroxide within 1 min-2 min, and reinforce the weathered stone relics. The application has the advantages of safety, high efficiency, non-damage, and no side effects.

Abstract: An electrical treatment device includes: a plurality of electrodes to be in contact with a part of a body of a user; and a controller that performs a treatment onto the part by applying, to the plurality of electrodes, a burst wave that is constituted of a continuous wave of a plurality of pulses. The controller outputs a first burst wave including a plurality of pulses each having a first amplitude, and after outputting the first burst wave, controller repeatedly outputs a second burst wave including a plurality of positive pulses each having a second amplitude and a third burst wave including a plurality of negative pulses having a third amplitude. The first amplitude is larger than each of the second amplitude and the third amplitude.

Abstract: A field agricultural machinery test platform, comprising a field soil groove, traveling guide rails, traveling trolleys, a hitch trolley, a hitch device mechanism, and a test system. The two guide rails are provided on both sides of the field soil groove in parallel, and the traveling trolleys are located on the guide rails; a cross beam is provided between the two guide rails, and the two ends of the cross beam are respectively connected to the traveling trolleys; the hitch trolley is provided on the cross beam, and a hitch device is provided on the hitch trolley; the test system is provided on the hitch trolley and the hitch device; a test machine is connected to the hitch device; the test system comprises an image assembly, a force test assembly, and a control assembly which are mounted on the hitch trolley.

Abstract: In an embodiment, a bloom engine is created that can detect the formation of both fat bloom and sugar bloom in a chocolate product. A Raman spectrometer is used to generate a first or reference spectrum of a chocolate product. Based on peaks of the spectrum known to be associated with sugar and peaks of the spectrum known to be associated with fat, a ratio of sugar to fat for the chocolate product is determined based on the reference spectrum. Later, a second spectrum is generated from the chocolate product, and a ratio of sugar to fat is similarly determined for the second spectrum. Changes in the ratios between the two samples are used to detect fat or sugar bloom. Other features of the bloom engine including removing or reducing bloom from the chocolate product using a laser associated with the spectrometer and applying a design to the chocolate product in bloom using the laser.

Abstract: The present disclosure provides a semiconductor chip power supply system, including: a semiconductor chip including: a first data processing function area and a first power converter control area formed on a first semiconductor substrate of the semiconductor chip; and a first power converter power stage located outside the first semiconductor substrate and electrically connected to the first power converter control area and the first data processing function area; wherein the first power converter control area controls the first power converter power stage to supply power to the first data processing function area, and the first power converter control area adjusts the output voltage of the first power converter power stage according to information corresponding to a working status of the first data processing function area.

Abstract: The invention provides a device and a method for reinforcing weathered stone relics by using low temperature plasma to activate calcium hydroxide in a carbon dioxide atmosphere. Based on the low temperature plasma physics and the principles of the relics conservation, the invention applies the technology of low temperature plasma to relics conservation, and especially to the reinforcement of weathered stone relics by activating calcium hydroxide. According to the application, using low temperature plasma source loaded with carbon dioxide to active calcium hydroxide can realize the carbonation and precipitation of calcium hydroxide within 1 min-2 min, and reinforce the weathered stone relics. The application has the advantages of safety, high efficiency, non-damage, and no side effects.

Abstract: The present disclosure provides a semiconductor chip power supply system, including: a semiconductor chip including: a first data processing function area and a first power converter control area formed on a first semiconductor substrate of the semiconductor chip; and a first power converter power stage located outside the first semiconductor substrate and electrically connected to the first power converter control area and the first data processing function area; wherein the first power converter control area controls the first power converter power stage to supply power to the first data processing function area, and the first power converter control area adjusts the output voltage of the first power converter power stage according to information corresponding to a working status of the first data processing function area.

Abstract: The present disclosure provides a semiconductor chip power supply system, including: a semiconductor chip including: a first data processing function area and a first power converter control area, the first data processing function area and the first power converter control area being formed on a first semiconductor substrate of the semiconductor chip; and a first power converter power stage located outside the first semiconductor substrate and electrically connected to the first power converter control area and the first data processing function area; wherein the first power converter control area controls the first power converter power stage to supply power to the first data processing function area.

Abstract: The present disclosure provides a semiconductor chip power supply system, including: a semiconductor chip including: a first data processing function area and a first power converter control area, the first data processing function area and the first power converter control area being formed on a first semiconductor substrate of the semiconductor chip; and a first power converter power stage located outside the first semiconductor substrate and electrically connected to the first power converter control area and the first data processing function area; wherein the first power converter control area controls the first power converter power stage to supply power to the first data processing function area.

Abstract: The present disclosure provides a semiconductor chip power supply system, including: a semiconductor chip including: a first data processing function area and a first power converter control area, the first data processing function area and the first power converter control area being formed on a first semiconductor substrate of the semiconductor chip; and a first power converter power stage located outside the first semiconductor substrate and electrically connected to the first power converter control area and the first data processing function area; wherein the first power converter control area controls the first power converter power stage to supply power to the first data processing function area.

Abstract: The present disclosure provides a semiconductor chip power supply system, including: a semiconductor chip including: a first data processing function area and a first power converter control area, the first data processing function area and the first power converter control area being formed on a first semiconductor substrate of the semiconductor chip; and a first power converter power stage located outside the first semiconductor substrate and electrically connected to the first power converter control area and the first data processing function area; wherein the first power converter control area controls the first power converter power stage to supply power to the first data processing function area.

Abstract: A method for preparing abiraterone acetate.

Abstract: A method for preparing abiraterone acetate.