Abstract: The present disclosure relates to a 4D printed gripper with flexible finger joints and a trajectory tracking control method thereof. The 4D printed gripper with flexible finger joints includes: a palm unit and five finger units connected to the palm unit, where each finger unit includes two flexible finger joints and two phalanges; each flexible finger joint is divided into one upper layer and one lower layer of liquid crystal elastomer (LCE), and each LCE is used to implement a bidirectional bending movement of the finger unit. The present disclosure can precisely control the gripper with flexible finger joints.

Abstract: In an example method, a mobile device obtains a signal indicating an acceleration measured by a sensor over a time period. The mobile device determines an impact experienced by the user based on the signal. The mobile device also determines, based on the signal, one or more first motion characteristics of the user during a time prior to the impact, and one or more second motion characteristics of the user during a time after the impact. The mobile device determines that the user has fallen based on the impact, the one or more first motion characteristics of the user, and the one or more second motion characteristics of the user, and in response, generates a notification indicating that the user has fallen.

Abstract: The present disclosure discloses a chip for monitoring performance of a motor and a performance monitoring system for a rotating apparatus. The system includes a sensing module, including a plurality of sensing sensors. The sensing module detecting a working state of the rotating apparatus and generating a working condition signal. A diagnosis module receives the working condition signal from the sensing module, determines a performance state of the rotating apparatus based on the working condition signal, and generates a performance state detection result. The performance state detection result includes a normal performance state and an abnormal performance state. A communication module sends an alarm signal to a central control platform when the performance state detection result is the abnormal performance state. The sensing module, the diagnosis module and the communication module are integrated on the same chip.

Abstract: The present disclosure relates to a ligand for a quantum dot, a ligand quantum dot, a quantum dot layer and a method for patterning the same. The surface of the ligand quantum dot of the present disclosure is connected with the cleavage-type ligand including a first ligand unit A, a cleavage unit B, and an adhesion adjusting unit C. The method includes: providing a substrate; coating a mixture containing the ligand quantum dot on the substrate to form a quantum dot film; exposing a preset region of the quantum dot film to ultraviolet light, so that the cleavage unit B in the cleavage-type ligand undergoes a photolysis reaction, and a molecular segment containing the adhesion adjusting unit C and obtained after decomposition is detached from a surface of the quantum dot; and washing off an unexposed region of the quantum dot film with an organic solvent, followed by drying.

Abstract: The present application relates to a synthesis method for N-methyl-3-substituted methyl-4-pyrazolamide derivative and N-methyl-3-substituted methyl-4-pyrazolic acid, including the following steps: step S1: synthesis of intermediate E; step S2: synthesis of intermediate D; step S3: synthesis of intermediate C; step S4: synthesis of N-methyl-3-substituted methyl-4-pyrazolamide derivative; and synthesis of N-methyl-3- substituted methyl-4-pyrazolic acid by decomposition of N-methyl-3-substituted methyl-4-pyrazolamide derivative.

Abstract: A method for patterning a quantum dot layer comprises: forming, on a substrate (1), a front film layer and a sacrificial layer (5) which are stacked in sequence, wherein one of the sacrificial layer and the front film layer is hydrophilic, and the other of the sacrificial layer and the front film layer is hydrophobic; forming a photoresist (6) having a through hole on the sacrificial layer, wherein the through hole corresponds to a target region, and etching the sacrificial layer in the target region under the shielding of the photoresist; laying a quantum dot material, and curing the quantum dots material of the target region; and removing the remaining sacrificial layer and the photoresist, and forming a patterned quantum dot layer in the target region.

Abstract: A method for manufacturing a quantum dot film is provided. A substrate plate is provided. A plurality of quantum dot material layers capable of emitting light having different colors are sequentially formed on the substrate plate, wherein at least one of the quantum dot material layers includes a plurality of quantum dots. A local crosslinking process is performed on at least one of the quantum dot material layers, so as to crosslink the crosslinkable ligands in a region emitting light having a corresponding color in the quantum dot material layer. A fluorescence quenching process is performed on the quantum dot material layer subjected to the local crosslinking process, so as to quench the fluorescence of quantum dots outside the region emitting light having the corresponding color in the quantum dot material layer. A display panel and a method for manufacturing the same are also provided.

Abstract: Provided are a keyword extraction method applicable to a Word text, an electronic device, and a computer-readable storage medium. The method includes: acquiring a text and extracting a body of the text; extracting a set number of keywords in the body by a TFIDF algorithm and a set number of keywords in the body by a TextRank algorithm, respectively; acquiring a text name and a text title of the text and segmenting the text name and the text title into words of the text name and words of the text title; constructing text feature vectors of the text and inputting the text feature vectors into a trained keyword extraction model; and extracting a keyword set from the keywords extracted by the TextRank algorithm by using the keyword extraction model to achieve text keyword extraction.

Abstract: Embodiments of the present disclosure provide a quantum dot ligand, a quantum dot material, and a quantum dot light emitting device. In a quantum dot ligand of general formula (I), n is 1, 2, 3, or 4; two of X, Y, and Z are G1 group and G2 group, respectively, and the remaining one is selected from the group consisting of G1 group, G2 group, and hydrogen, wherein the G1 group, for each occurrence, is independently selected from —(CH2)m-L-(CH2)n—R1, wherein R1 is a coordination group, m is 0 to 6, n is 0 to 6, and L is a divalent group or absent; the G2 group, for each occurrence, is independently selected from a C4-20 alkyl having a carbon chain with more than 4 carbon atoms.

Abstract: Provided are a text duplicate checking method, an electronic device and a computer-readable storage medium. The method includes storing a fingerprint set and a corresponding text ID in a byte data manner to obtain a fingerprint library; acquiring a target text and creating a target fingerprint; obtaining a comparison fingerprint set from map memories according to the target fingerprint, and calculating a similarity between the target fingerprint and each comparison fingerprint in the comparison fingerprint set separately; and based on a determination result that a number of 1 s in binary values of one similarity is less than or equal to a preset value, querying a text ID corresponding to the one similarity, to implement duplicate checking of the target text.

Abstract: Disclosed are a quantum dot display panel, a manufacturing method thereof and a display device. The manufacturing method includes: forming a first functional layer on a substrate; processing the first functional layer so that the first functional layer includes a processed region and the processed region includes ions having a first polarity; forming a quantum dot layer having a second polarity in the processed region. The second polarity and the first polarity are opposite electrical polarities.

Abstract: A quantum dot light emitting diode and a method for manufacturing the same are provided, a display panel, and a display device, belonging to the display technical field. The quantum dot light emitting diode comprises: a base substrate; a first electrode, a first electron transport layer, a second electron transport layer, a quantum dot light emitting layer, a hole transport layer, a hole injection layer and a second electrode successively located on the base substrate, where a surface roughness of a side of the first electron transport layer away from the first electrode is less than a threshold, and the second electron transport layer is composed of nanoparticles.

Abstract: A method of patterning a light-emitting layer and a method of manufacturing a light-emitting diode device are provided, including: providing a substrate; forming a first electrode layer on the substrate; forming a sacrificial layer on the first electrode layer; patterning the sacrificial layer to remove the sacrificial layer in a first region of the substrate and retain the sacrificial layer in a second region of the substrate, the first electrode layer is at least partially located in the first region; forming a first carrier auxiliary layer in the first region and the second region; forming a light-emitting layer on the first carrier auxiliary layer, and removing the retained sacrificial layer in the second region and the first carrier auxiliary layer and the light-emitting layer covering the retained sacrificial layer, and retaining the first carrier auxiliary layer and the light-emitting layer in the first region, to pattern the light-emitting layer.

Abstract: Embodiments of the present disclosure provide a quantum dot light emitting device, a preparation method thereof and a quantum dot display panel, the method includes: forming a first function layer; forming a first sacrificial layer and a first photoresist layer; patterning the first photoresist; patterning the first sacrificial layer, the first function layer includes a first part and a second part, and the first sacrificial layer pattern and the first photoresist pattern are stacked on the first part, the second part is exposed by the first sacrificial layer pattern and the first photoresist pattern; forming a first quantum dot material layer; stripping the first sacrificial layer pattern to remove the first sacrificial layer pattern, the first photoresist pattern and the first quantum dot material layer on the first sacrificial layer pattern, retaining the first quantum dot material layer on the second part of the first function layer.

Abstract: A network monitoring apparatus, and a remote encryption and remote activation method, device and system thereof are provided. The method includes the following steps: receiving an encrypted activation password sent by a client terminal; decrypting the encrypted activation password to obtain an original activation password; determining whether the original activation password meets a predetermined password strength requirement; when the original activation password meets the predetermined password strength requirement, activating the network monitoring apparatus and setting the original activation password as an administrator password; and returning information indicating that the network monitoring apparatus is successfully activated to the client terminal. A network monitoring apparatus, an encryption method of a network monitoring apparatus based on a client terminal, a client terminal, and a remote activation system based on a network monitoring apparatus are also provided.

Abstract: A joint cavity injection preparation is provided. The active ingredient of the joint cavity injection preparation is deacetylated xanthan gum (XG). The deacetylated XG has a molecular weight of 500,000 to 20,000,000. The joint cavity injection preparation is prepared from deacetylated xanthan gum (XG), which has higher biocompatibility and safe wide-dosage range than existing joint cavity injection preparations prepared from XG.

Abstract: The present disclosure provides a method for manufacturing a quantum dot film, comprising: providing a substrate plate; sequentially forming a plurality of quantum dot material layers capable of emitting light having different colors on the substrate plate, wherein at least one of the quantum dot material layers comprises a plurality of quantum dots; performing a local crosslinking process on at least one of the quantum dot material layers, so as to crosslink the crosslinkable ligands in a region emitting light having a corresponding color in the quantum dot material layer, and performing a fluorescence quenching process on the quantum dot material layer subjected to the local crosslinking process, so as to quench the fluorescence of quantum dots outside the region emitting light having the corresponding color in the quantum dot material layer. The present disclosure further provides a display panel and a method for manufacturing the same.

Abstract: The present disclosure relates to a ligand for a quantum dot, a ligand quantum dot, a quantum dot layer and a method for patterning the same. The surface of the ligand quantum dot of the present disclosure is connected with the cleavage-type ligand including a first ligand unit A, a cleavage unit B, and an adhesion adjusting unit C. The method includes: providing a substrate; coating a mixture containing the ligand quantum dot on the substrate to form a quantum dot film; exposing a preset region of the quantum dot film to ultraviolet light, so that the cleavage unit B in the cleavage-type ligand undergoes a photolysis reaction, and a molecular segment containing the adhesion adjusting unit C and obtained after decomposition is detached from a surface of the quantum dot; and washing off an unexposed region of the quantum dot film with an organic solvent, followed by drying.

Abstract: A joint cavity injection preparation is provided. The active ingredient of the joint cavity injection preparation is deacetylated xanthan gum (XG). The deacetylated XG has a molecular weight of 500,000 to 20,000,000. The joint cavity injection preparation is prepared from deacetylated xanthan gum (XG), which has higher biocompatibility and safe wide-dosage range than existing joint cavity injection preparations prepared from XG.

Abstract: A network monitoring apparatus, and a remote encryption and remote activation method, device and system thereof are provided. The method includes the following steps: receiving an encrypted activation password sent by a client terminal; decrypting the encrypted activation password to obtain an original activation password; determining whether the original activation password meets a predetermined password strength requirement; when the original activation password meets the predetermined password strength requirement, activating the network monitoring apparatus and setting the original activation password as an administrator password; and returning information indicating that the network monitoring apparatus is successfully activated to the client terminal. A network monitoring apparatus, an encryption method of a network monitoring apparatus based on a client terminal, a client terminal, and a remote activation system based on a network monitoring apparatus are also provided.