Abstract: A digital microfluidic apparatus and a driving method therefor. The digital microfluidic apparatus comprises a digital microfluidic chip (10), a thermal control apparatus (20), and an elastic support apparatus (30). The digital microfluidic chip (10) is provided with a droplet channel (91), and the droplet channel (91) is configured to allow droplets (90) to move therein; the thermal control apparatus (20) is disposed on one side of the digital microfluidic chip (10), and is configured to generate at least two independent and non-interference hot zones in the droplet channel (91), and control the temperature of each hot zone; and the elastic support apparatus (30) is disposed on the side of the thermal control apparatus (20) away from the digital microfluidic chip (10), and is configured to drive the thermal control apparatus (20) to be pasted on the surface of the digital microfluidic chip (10).

Abstract: Methods and systems for building and maintaining model(s) of a physical process are disclosed. One method includes receiving training data associated with a plurality of different data sources, and performing a clustering process to form one or more clusters. For each of the one or more clusters, the method includes building a data model based on the training data associated with the data sources in the cluster, automatically performing a data cleansing process on operational data based on the data model, and automatically updating the data model based on updated training data that is received as operational data. For data sources excluded from the clusters, automatic building, data cleansing, and updating of models can also be applied.

Abstract: A wind power prediction method and system for optimizing a deep Transformer network by whale optimization algorithm are disclosed. The sequence data of wind power and related influence factors are taken as sample data which is divided into a training set and a test set, where the data is trained and predicted by a Transformer network model established according to values of the initialized hyper-parameters, and an average absolute error of wind power prediction is taken as a fitness value of each whale group. A local optimal position is determined according to the initial fitness value of individual whale group, and the current optimal position is updated by utilizing whale group optimization, and the best prediction effect is obtained by comparing the local optimal solution with the global optimal solution. An optimal hyper-parameter combination is obtained after multiple iterations of the whale optimization algorithm, and the wind power is predicted.

Abstract: A biological detection chip, a biological detection device, and a detection method thereof are disclosed. The biological detection chip includes a first base substrate and a plurality of detection units arranged in an array along a row direction and a column direction on the first base substrate. Each of the plurality of detection units includes a thin film transistor and an electrode, the thin film transistor is on the first base substrate and includes a gate electrode, a source electrode, and a drain electrode, and the electrode is on a side of the thin film transistor away from the first base substrate and is connected to the drain electrode, and the electrode is configured to carry a biological material to be detected.

Abstract: A DC/DC converter fault diagnosis method based on an improved sparrow search algorithm, includes: establishing an simulation module of the converter, selecting a leakage inductance current of a transformer as a diagnosis signal, and collecting diagnosis signal samples under OC faults of different power switching devices of the converter as a sample set; improving a global search ability of a sparrow search algorithm by using a Levy flight strategy; dividing the sample set into a training set and a test set, preliminarily establishing an architecture of a deep belief network, and initializing network parameters; optimizing a quantity of hidden-layer units of the deep belief network by using an improved sparrow search algorithm, to obtain a best quantity of hidden-layer units of the deep belief network; and training an optimized deep belief network obtained based on the improved sparrow search algorithm, and obtaining a fault diagnosis result based on a trained network.

Abstract: A DC/DC converter fault diagnosis method based on an improved sparrow search algorithm, includes: establishing an simulation module of the converter, selecting a leakage inductance current of a transformer as a diagnosis signal, and collecting diagnosis signal samples under OC faults of different power switching devices of the converter as a sample set; improving a global search ability of a sparrow search algorithm by using a Levy flight strategy; dividing the sample set into a training set and a test set, preliminarily establishing an architecture of a deep belief network, and initializing network parameters; optimizing a quantity of hidden-layer units of the deep belief network by using an improved sparrow search algorithm, to obtain a best quantity of hidden-layer units of the deep belief network; and training an optimized deep belief network obtained based on the improved sparrow search algorithm, and obtaining a fault diagnosis result based on a trained network.

Abstract: The present disclosure discloses a temperature-controllable large-size geotechnique true triaxial multi-field coupling test system and a test method. The system includes a host loading mechanism, a deformable large-size soil box, an independent three-dimensional loading unit, a refrigeration, water and salt supplementation unit, and a soil-water-ice-salt change monitoring unit. The deformable large-size soil box is arranged on the host loading mechanism. In combination with the special structural design, monitoring is carried out by dividing a large-size soil test sample into environmental soil and a core soil region to eliminate the size effect of the test. The solution can simulate a three-dimensional stress state of the soil test sample in a three-dimensional open system. In consideration of the evolution of hydrothermal salt and three-dimensional migration of temperature, water, salt, etc. between the soil and the environment, temperature-water-salt-stress-strain multi-field coupling is realized.

Abstract: A method for detecting an emotional state of a user includes obtaining a first data stream indicative of facial appearance and gaze direction of the user as the user is viewing a scene, determining, based on the first data stream, facial expression feature information indicative of emotional facial expression of the user, obtaining a second data stream indicative of visual content in a field of view of the user, determining, based on the second data stream, visual feature information indicative of visual content in the scene, determining emotional state information based on analyzing the facial expression feature information determined based on the first data stream and the visual feature information determined based on the second data stream, and performing an operation with respect to the emotional state information, wherein the emotional state information is indicative of the emotional state of the user.

Abstract: A digital microfluidic chip and a digital microfluidic system. The digital microfluidic chip comprises: an upper substrate and a lower substrate arranged opposite to each other; multiple driving circuits and multiple addressing circuits disposed between the lower substrate and the upper substrate; and a control circuit, electrically connected to the driving circuits and the addressing circuits. The control circuit is configured to apply, in a driving stage, a driving voltage to each driving circuit, such that a droplet is controlled to move inside a droplet accommodation space according to a set path, measure, in a detection stage, after a bias voltage is applied to each addressing circuit, a charge loss amount of each addressing circuit, and to determine the position of the droplet according to the charge loss amount. The charge loss amount of each addressing circuit is related to the intensity of received external light.

Abstract: A chip for polymerase chain reaction, a method of operating a chip for polymerase chain reaction, and a reaction device are provided. The chip includes: a sample adding region, a mixing region, a temperature cycling region in a sequential arrangement, and at least one driving unit group. The at least one driving unit group includes a plurality of driving units and is configured to drive a liquid drop to move and sequentially pass through the sample adding region, the mixing region, and the temperature cycling region.

Abstract: A method for detecting content of interest to a user includes obtaining a first data stream indicative of eye movement and/or gaze direction of the user as the user is viewing a scene in a field of view of the user, obtaining a second data stream indicative of visual content in the field of view of the user, determining, based on the first data stream and the second data stream, that content of interest to the user is present in the scene in the field of view of the user, and, in response to determining that content of interest to the user is present in the scene in the field of view of the user, triggering, with the processor, an operation to be performed with respect to the scene in the field of view of the user.

Abstract: The present disclosure discloses a microfluidic structure, a microfluidic chip and a detection method. The microfluidic structure includes: a first base substrate and a second base substrate opposite to each other, an antibody area located between the first base substrate and the second base substrate and storing an enzyme-labeled first antibody, a cleaning area storing cleaning liquid, a signal substrate area storing a signal substrate solution and a detection area with a second antibody and an ion sensitive film fixed thereon, wherein all channel areas from the antibody area, the cleaning area and the signal substrate area to the detection area each have a driving electrode structure driving liquid drops to move; and the detection area has a thin film transistor connected with the ion sensitive film.

Abstract: A microfluidic device and a detection method for the microfluidic device are provided. The microfluidic device includes a driving substrate configured to drive a movement of a droplet; and a position detector configured to detect a position of the droplet on the driving substrate.

Abstract: Disclosed are a substrate for a microfluidic device, a microfluidic device, a driving method of the microfluidic device, and a method of manufacturing a substrate for the microfluidic device. The substrate includes: a first base substrate; a first electrode layer on the first base substrate, the first electrode layer including a plurality of drive electrodes. The plurality of drive electrodes define at least one flow channel and at least one functional area in the first substrate, the at least one functional area includes a reagent area, the at least one flow channel includes a reagent area flow channel, the reagent area includes a reagent area liquid storage portion and a droplet shape changing portion, the droplet shape changing portion is adjacent to the reagent area flow channel, and the reagent liquid storage portion is on a side of the droplet shape changing portion away from the reagent area flow channel.

Abstract: The present disclosure relates to a microfluidic substrate, a microfluidic device and a driving method thereof. The microfluidic substrate includes a first area, the first area includes a first module for generating droplets, the first module includes a first electrode pair and a second electrode pair, and the first electrode pair and the second electrode pair are arranged in a crisscross pattern. The first electrode pair includes a first electrode and a second electrode, and the second electrode pair includes a third electrode and a fourth electrode.

Abstract: The present disclosure provides a substrate for driving droplets, a manufacturing method thereof, and a microfluidic device. The substrate includes a first base substrate a plurality of leads on the first base substrate a plurality of driving electrodes on a side of the plurality of leads away from the first base substrate and a shielding electrode on the side of the plurality of leads away from the first base substrate and grounded. Each of the plurality of leads is electrically connected to at least one of the plurality of driving electrodes, an orthographic projection of the shielding electrode on the first base substrate and an orthographic projection of at least one of the plurality of leads on the first base substrate at least partially overlap, and the shielding electrode is electrically insulated from the plurality of driving electrodes.

Abstract: A cell detection method and a cell detection device. The cell detection method includes: dividing a liquid sample into a plurality of droplets in a sample detection region so that each of the plurality of droplets includes fewer than ten cells; and performing optical detection on the plurality of droplets in the sample detection region to determine a target droplet including a target cell from the plurality of droplets.

Abstract: A microfluidic device, a microfluidic detection assembly and a detection method for the microfluidic device. The microfluidic device includes a first substrate and a second substrate; the first substrate and the second substrate are oppositely arranged to define a channel between the first substrate and the second substrate, the channel is configured for liquid to flow, the first substrate includes a base substrate and a plurality of control assemblies which are arranged on the base substrate along an extending direction of the channel, each of the plurality of control assemblies includes: a first electrode, a second electrode and a plurality of coils, and the first electrode is configured to input currents into the plurality of coils, and the plurality of coils are connected in parallel to the second electrode.

Abstract: The present disclosure relates to a digital microfluidic chemiluminescence detection chip, a detection method and a detection device. The digital microfluidic chemiluminescence detection chip includes a first baseplate and a second baseplate disposed oppositely. A cavity formed by the first and second baseplate includes a mixing and incubating area for combining an antigen, a magnetic particle antibody and an antibody, a luminescence detection area for chemiluminescence and detecting an optical signal, and a communication path for communicating the mixing and incubating area and the luminescence detection area. The first baseplate is provided with a drive array for driving sample solution to move and an optical sensing array for acquiring a luminescence signal of the sample solution. The drive array corresponds to positions of the mixing and incubating area, the luminescence detection area and the communication path. The optical sensing array corresponds to a position of the luminescence detection area.

Abstract: A micro-fluidic chip is provided. The micro-fluidic chip includes: a first base substrate; a first electrode on the first base substrate and electrically coupled to a wire at a driving end; a second electrode on a side of the first electrode away from the first base substrate and spaced apart and electrically insulated from the first electrode, the second electrode including a plurality of sub-blocks of the second electrode, and an orthographic projection of the second electrode on the first base substrate being at least partially overlapped with an orthographic projection of the first electrode on the first base substrate; and voltage-dividing resistors coupled to the plurality of sub-blocks of the second electrode in one-to-one correspondence and electrically coupled to a ground wire.