Abstract: A method for predicting a size range of a lost circulation channel based on deep learning (DL) is provided. The method includes the following steps: S1: acquiring data of the lost circulation channel, and establishing a prediction dataset of the size range of the lost circulation channel; S2: preprocessing the prediction dataset of the size range of the lost circulation channel, and determining the size range of the lost circulation channel; S3: establishing a prediction model for the size range of the lost circulation channel; and S4: optimizing the prediction model for the size range of the lost circulation channel, and predicting the size range of the lost circulation channel. The method overcomes the shortcomings of conventional methods, for example, the prediction value of the size of the downhole lost circulation channel is single, inaccurate and not real-time.

Abstract: A visual navigation inspection and obstacle avoidance method for a line inspection robot is provided. The line inspection robot is provided with a motion control system, a visual navigation system and an inspection visual system; and the method comprises the following steps: (1) according to an inspection image, the inspection visual system determining and identifying the type of a tower for inspection; (2) the visual navigation system shooting a visual navigation image in real time to obtain the type of a target object; (3) coarse positioning; (4) accurate positioning; and (5) according to the type of the tower and the type of the target object, the visual navigation system sending a corresponding obstacle crossing strategy to the motion control system, such that the inspection robot completes obstacle crossing. The inspection and obstacle avoidance method is real-time and efficient.

Abstract: A system for testing an assist function of electric vehicle wireless power transfer includes: a pit, a vehicle-assembly support platform, and an electromagnetic field strength measurement instrument. A ground-assembly support platform is arranged inside the pit, the vehicle-assembly support platform is arranged on an upper side of the ground-assembly support platform, and a to-be-tested member is arranged on an upper side of the ground-assembly support platform. A ground-assembly device coil is arranged on an upper surface of the ground-assembly support platform, a vehicle-assembly device coil is arranged inside the vehicle-assembly support platform, the ground-assembly device coil charges an entire vehicle, and the ground-assembly device coil further cooperates with the vehicle-assembly device coil to charge a vehicle component. A mechanical arm is arranged on ground of a test site, an interference member is arranged on a front end of the mechanical arm.

Abstract: A self-powered wireless keyboard by modifying the structure of a traditional membrane keyboard having a volcanic crater structure. Not damaging the original membrane keyboard structure, a micro magnet core is installed inside a cylindrical protrusion block under the key cap as a mover of the induction power generation device, and an induction coil is wound in a key slot of the keyboard base as the stator of the induction power generation device. In this way, when each key is pressed, it will produce induction current. A layer of flexible solar cell can be laid on the upper surface of the key, which can generate electricity by collecting the light energy in the surrounding environment during the time of daily illumination.

Abstract: A system for testing an assist function of electric vehicle wireless power transfer includes: a pit, a vehicle-assembly support platform, and an electromagnetic field strength measurement instrument. A ground-assembly support platform is arranged inside the pit, the vehicle-assembly support platform is arranged on an upper side of the ground-assembly support platform, and a to-be-tested member is arranged on an upper side of the ground-assembly support platform. A ground-assembly device coil is arranged on an upper surface of the ground-assembly support platform, a vehicle-assembly device coil is arranged inside the vehicle-assembly support platform, the ground-assembly device coil charges an entire vehicle, and the ground-assembly device coil further cooperates with the vehicle-assembly device coil to charge a vehicle component. A mechanical arm is arranged on ground of a test site, an interference member is arranged on a front end of the mechanical arm.

Abstract: The invention relates to an electronic calendar system method, and computer program product thereof. The system includes a cloud platform, at least one user terminal, at least one creative terminal, and a display terminal. The cloud platform is connected to the user terminal and the creative terminal, and the user terminal is connected to the display terminal. The creative terminal provides the digital creative content to transmit to the cloud platform. The user terminal obtains at least one digital calendar template and digital creative content front the cloud platform. The user terminal combines the digital calendar template, the digital creative content, and the digital calendar schedule to generate a graphical digital calendar, and transmits the graphical digital calendar to the display terminal by the user the terminal. The display terminal outputs the graphical digital calendar.

Abstract: The present invention discloses a multifunctional display device, which includes a display unit and a support member. The display unit includes a first side and a second opposite to the first side. The support member is disposed on the first side and includes a reverse hanging unit disposed near the second side. According to requirement, the reverse hanging unit may be used to hang the reversed display unit onto a supporter. While the multifunctional display device is placed on a desk top, the display unit may present the information of a calendar, whereby the multifunctional display device can function as an electronic calendar. While the multifunctional display device is hung reversely via the reverse hanging unit, the display unit may present the information of goods, whereby the multifunctional display device can function as an electronic shelf label.

Abstract: A packaging box includes a box body and at least one side cover. The box body includes a first sheet, a second sheet, a first opening, a second opening, and a first side portion. The second sheet is arranged opposite to the first sheet. The first sheet, the second sheet, and the first portion have a detachable sheet. The side cover covers the first opening and includes a first body sheet covering the first opening and a second body sheet fixed to the first opening with a protruding sheet. When the detachable sheet is detached, the box body is folded in half and the protruding sheet is bent and inserted into the second opening to fix the folded box body. A part of the box body where the detachable sheet is detached is used as a fixing portion. The packaging box serves packaging and supporting by changing shape.

Abstract: A debittering Kudingcha extract, a preparation method and a fingerprint detection method thereof are disclosed, which relates to the technical field of extract preparation and detection. The extract is prepared from Kudingcha by enzymolysis, water extraction, concentration, drying, purification and enrichment by a macroporous resin column, and drying. When the macroporous resin column is arranged for purification and enrichment, it is first rinsed with pure water, and then eluted with an ethanol solution with volume fraction of 30-80%, and an ethanol eluent is collected. The Kudingcha extract is purified with macroporous resin, which can retain its effective ingredients to the greatest extent while reducing the bitter taste, and enhance the effect of improving energy and resisting fatigue. The quality control of products through fingerprint is conducive to the improvement of product stability and further promotion of products.

Abstract: This application belongs to the field of biotechnology and discloses a method for producing a clam active peptide. The method for producing a clam active peptide comprises cleaning fresh clam meat with water, adding water and homogenizing with a colloid mill to prepare a clam meat slurry; adding water and complex protease for enzymolysis of the clam meat slurry, and heating to inactivate enzyme after the enzymolysis; centrifuging to collect an enzymatic hydrolyzate, capturing the enzymatic hydrolyzate having a molecular weight of lower than 2 KDa through microfiltration-ultrafiltration-nanofiltration membrane filtration, and drying to obtain the clam active peptide.

Abstract: A display device installed on the handle of a public transportation vehicle displays advertising information. The display device includes a body and two displays. The body includes a housing. The housing has a first surface, a second surface opposite the first surface, a third surface, and an opening. The housing is provided with a fixed hole penetrating through the first surface and the second surface. The housing is provided with a fixing component therein. The housing is provided with two electronic component-accommodating portions therein. The electronic component-accommodating portions are respectively arranged at two sides of the fixed hole. The third surface and the opening are perpendicular to the first surface and the second surface. The display device can reduce waste of ink and paper due to using advertising papers to advertise.

Abstract: A common mode filter, comprising a winding core, and said winding core further includes a U-type heave portion, said U-type heave portion divides said winding core into a first winding portion, a second winding portion and a cross winding portion; the first winding wires, are wound on said first winding portion, said cross winding portion and said second winding portion in sequence; and the second winding wires, are wound on said first winding portion, said cross winding portion and said second winding portion in sequence. As a result, the common mode filter not only can reduce the effects of the existence capacitors of in high-frequency layers and the inherent functionality of parasitic capacitors in common mode filters with higher frequency characteristics, but also the overall structure is simple, fast assembly and easy operation.

Abstract: A common mode filter, comprising a winding core, and said winding core further includes a U-type heave portion, said U-type heave portion divides said winding core into a first winding portion, a second winding portion and a cross winding portion; the first winding wires, are wound on said first winding portion, said cross winding portion and said second winding portion in sequence; and the second winding wires, are wound on said first winding portion, said cross winding portion and said second winding portion in sequence. As a result, the common mode filter not only can reduce the effects of the existence capacitors of in high-frequency layers and the inherent functionality of parasitic capacitors in common mode filters with higher frequency characteristics, but also the overall structure is simple, fast assembly and easy operation.

Abstract: A server includes a chassis including a first sidewall, a second sidewall, a rear wall, a front wall, and a partition wall. A receiving space to receive a power module is bound by the front wall, the partition wall, and front portions of the first and second sidewalls. A number of through holes is defined in each of the rear wall, the front wall, and the front portions of the first and second sidewalls. An outlet and an inlet of the power module face the first sidewall and the second sidewall, respectively. A part of the partition wall between the inlet and the first sidewall does not define through holes. Another part of the partition wall defines a number of through holes. A number of data storage devices is located between the partition wall and the rear wall. A number of fans is located outside the rear wall.