Abstract: A method and a system for determining a supporting structure by combining a stress environment and an underground surrounding rock structure are provided in the disclosure, which relates to the technical field of stability analysis of coal-mine rock mass. The method includes: defining a stress peak position and an in-situ stress position by determining the stress environment; identifying the underground surrounding rock structure, identifying lithology and constructing a three-dimensional model of a rock stratum to analyze damage degree of the rock stratum; pretreating, namely normalizing, the damage degree of the rock stratum at two sides and comparing the damage degree of the rock stratum at a roof and the floor; and identifying the supporting structure and determining supporting effectiveness and a supporting length. The method of the disclosure is different from related art, and ensures that the supporting structure meets mechanical foundation and practical engineering requirements as a whole.

Abstract: A method for cleaning an air conditioner includes: in response to a cleaning instruction, controlling frosting on the surface of a target heat exchanger; after a frosting completion condition is met, controlling defrosting of the frost on the target heat exchanger; and after a defrosting completion condition is met, reducing the surface temperature of the target heat exchanger to a sterilization temperature, and carrying out quick cooling sterilization, wherein the temperature difference between the sterilization temperature and the defrosting temperature during defrosting meets a set temperature change sterilization condition. By a frosting-defrosting process, dirt such as dust on the heat exchanger may be effectively stripped and deep bacteria may be exposed, and then the quick cooling sterilization process may kill the bacteria by utilizing the sharp temperature change during switching from the defrosting process to the quick cooling process. Also disclosed is the air conditioner.

Abstract: Disclosed herein are a piezoelectric element, a method of manufacturing the piezoelectric element, a touchpad including the piezoelectric element, and a method of operating the touchpad, wherein the piezoelectric element has a shape of an N-hedron and includes N polygonal unit piezoelectric films forming N faces of the N-hedron, and the touchpad includes: a first piezoelectric element having a shape of an N-hedron; a pad body having a first installation groove detachably supporting the first piezoelectric element; and a signal processer receiving and processing a first signal generated by the first piezoelectric element in response to a first external force, wherein N unit signals are generated by N unit piezoelectric films forming N faces of the first piezoelectric element in response to one external force.

Abstract: Disclosed in the embodiments of the present disclosure are a video recording method and apparatus, an electronic device, and a storage medium. The method includes: upon receiving an instruction to be recorded, prompting a recording subject that is matched with said instruction, so as to inform a user of the subject information of a video to be recorded; and upon receiving a recording starting instruction, separately performing video recording on the user and a virtual teacher according to a recording order matched with the recording subject, wherein when video recording is performed on the user, response information is determined according to the voice content of the user in the video, and the voice of the virtual teacher expressing the response information is played in a video background voice mode.

Abstract: A method for cleaning an air conditioner comprises: in response to a cleaning instruction, controlling frosting on the surface of a target heat exchanger; after a frosting completion condition is met, controlling defrosting of the frost on the target heat exchanger; and after a defrosting completion condition is met, reducing the surface temperature of the target heat exchanger to a sterilization temperature, and carrying out quick cooling sterilization, wherein the temperature difference between the sterilization temperature and the defrosting temperature during defrosting meets a set temperature change sterilization condition. By means of a frosting-defrosting process, dirt such as dust on the heat exchanger may be effectively stripped and deep bacteria may be exposed, and then the quick cooling sterilization process may kill the bacteria by utilizing the sharp temperature change during switching from the defrosting process to the quick cooling process. Also disclosed is the air conditioner.

Abstract: Provided are a text processing method and apparatus, an electronic device and a non-transitory computer-readable medium. The method includes: collecting a to-be-processed text image, and performing gesture recognition on the to-be-processed text image to obtain a to-be-processed text, where the to-be-processed text is a text selected from the to-be-processed text image through a gesture; performing voice broadcasting on the to-be-processed text to prompt a user to perform dictation processing on the to-be-processed text; and collecting a dictation text image, performing recognition on the dictation text image, and determining a dictation check result according to a recognition result and the to-be-processed text.

Abstract: Disclosed in the embodiments of the present disclosure are a video recording method and apparatus, an electronic device, and a storage medium. The method includes: upon receiving an instruction to be recorded, prompting a recording subject that is matched with said instruction, so as to inform a user of the subject information of a video to be recorded; and upon receiving a recording starting instruction, separately performing video recording on the user and a virtual teacher according to a recording order matched with the recording subject, wherein when video recording is performed on the user, response information is determined according to the voice content of the user in the video, and the voice of the virtual teacher expressing the response information is played in a video background voice mode.

Abstract: Apparatus for determining the quantity of a target protein and other types of biomarkers or analytes present in a sample, the apparatus comprising: a top plate comprising a plurality of recesses arranged to form a plurality of rows extending parallel to one another; and a bottom plate comprising a plurality of recesses arranged to form a plurality of rows extending parallel to one another, and a plurality of channels extending perpendicularly to the plurality of rows of the bottom plate; wherein the top plate and the bottom plate are assembled together so that the top plate is on top of the bottom plate and the recesses of the top plate communicate with the recesses of the bottom plate so as to form a plurality of rows; and wherein at least one of the top plate and the bottom plate is configured to slide relative to the other of the top plate and the bottom plate in order to form a plurality of columns, with each of the plurality of columns in communication with each of the plurality of channels.

Abstract: Apparatus for determining the quantity of a target protein and other types of biomarkers or analytes present in a sample, the apparatus comprising: a top plate comprising a plurality of recesses arranged to form a plurality of rows extending parallel to one another; and a bottom plate comprising a plurality of recesses arranged to form a plurality of rows extending parallel to one another, and a plurality of channels extending perpendicularly to the plurality of rows of the bottom plate; wherein the top plate and the bottom plate are assembled together so that the top plate is on top of the bottom plate and the recesses of the top plate communicate with the recesses of the bottom plate so as to form a plurality of rows; and wherein at least one of the top plate and the bottom plate is configured to slide relative to the other of the top plate and the bottom plate in order to form a plurality of columns, with each of the plurality of columns in communication with each of the plurality of channels.

Abstract: Apparatus for determining the quantity of a target protein and/or other types of biomarkers or analytes present in a sample, the apparatus comprising: a top plate comprising a plurality of recesses arranged to form a plurality of rows extending parallel to one another; and a bottom plate comprising a plurality of recesses arranged to form a plurality of rows extending parallel to one another, and a plurality of channels extending perpendicularly to the plurality of rows of the bottom plate.

Abstract: Apparatus for determining the quantity of a target protein, biomarker or analyte present in a sample, comprising a top plate and a bottom plate, each comprising a plurality of recesses arranged to form a plurality of rows extending parallel to one another, and a plurality of channels extending perpendicularly to the plurality of rows of the bottom plate; wherein the top plate and the bottom plate are assembled together so that the top plate is on top of the bottom plate and the recesses of the top plate communicate with the recesses of the bottom plate so as to form a plurality of rows; and wherein at least one of the top and bottom plate is configured to slide relative to the other of the top and bottom plate in order to form a plurality of columns, with each of the columns in communication with each of the channels.

Abstract: Apparatus for determining the quantity of a target protein, biomarker or analyte present in a sample, comprising a top plate and a bottom plate, each comprising a plurality of recesses arranged to form a plurality of rows extending parallel to one another, and a plurality of channels extending perpendicularly to the plurality of rows of the bottom plate; wherein the top plate and the bottom plate are assembled together so that the top plate is on top of the bottom plate and the recesses of the top plate communicate with the recesses of the bottom plate so as to form a plurality of rows; and wherein at least one of the top and bottom plate is configured to slide relative to the other of the top and bottom plate in order to form a plurality of columns, with each of the columns in communication with each of the channels.

Abstract: An inexpensive apparatus and method of fabricating completely polymeric (e.g., SU-8, PMMA, and PEEK) microfluidic reactors suitable for the synthesis of chemicals, particularly nanoparticles (e.g., mono, bi, tri, alloy, core-shell, polymeric, and metal-polymer nano-particles), is disclosed. A high precision process uses polymeric microfluidic patterning techniques and a new microfluidic sealing technique, referred to as “flexible semi-solid transfer,” to fabricate high aspect ratio polymeric micro-reactors. In one embodiment, high quality microfluidic channels are patterned onto a support substrate. The microfluidic structure is then sealed by transferring a polymeric material from a sacrificial substrate to the microfluidic structure, and cured. Then, the structure is bonded to a second support structure to form a micro-reactor.