Abstract: An iterative learning-based energy-saving control method for a piezoelectric motor, comprising: setting a sampling period of a piezoelectric motor (101); obtaining an expected output trajectory of the piezoelectric motor, and performing sampling according to the sampling period to obtain a sampled expected output sequence (102); setting an initial control input signal of the piezoelectric motor (103); obtaining an actual control input signal according to a mapping relation of the initial control input signal, and transmitting the actual control input signal to the piezoelectric motor to obtain an actual output position (104); obtaining a mapping relation of the output position of the piezoelectric motor according to the actual output position, and sampling the mapping relation according to the sampling period to obtain a sampled actual output sequence (105); calculating the difference between the sampled expected output sequence and the sampled actual output sequence to obtain a sampling error function sequen

Abstract: An Android penetration method and device for implementing silent installation based on accessibility services. The method includes: acquiring a second target application by adding a load program to a first target application and adding penetration permissions using an Android decompilation technology; and implementing silent installation of the second target application using an accessibility service technology.

Abstract: Disclosed is a system for classifying encrypted traffic based on a data packet. The system includes a traffic capture module, a traffic analysis module, and a traffic classification module. The system collects data packets from a network flow to construct a machine learning model, so as to classify encrypted traffic and identify normal traffic and malicious traffic. In a process of constructing a feature matrix, basic spatial-temporal features, header features, load features, and statistical features are obtained. In addition, behavioral features of the data packets are obtained and used to demonstrate differences between the normal traffic and the malicious traffic. Moreover, the present disclosure focuses on a difference between different versions of an encryption protocol, especially a transport layer security (TLS) protocol, and introduces the difference into a model for analysis, so that the system classifies encrypted traffic in a more efficient manner.

Abstract: A flow focusing type one-step double emulsion droplet parallel generation device and method. The device comprises a fluid injection module, a liquid droplet generation module, a liquid droplet surface solidification module and a liquid droplet collection module, wherein the fluid injection module is used for conveying fluid of each phase to the liquid droplet generation module; and the liquid droplet generation module comprises a fluid distribution functional area, a liquid droplet preparation functional area and an auxiliary functional arca, wherein the liquid droplet distribution functional area is used for conveying the fluid of each phase into a channel of the fluid of each phase corresponding to the liquid droplet preparation functional area, and the fluid of each phase is gathered at the same point in a flow focusing structure and then is broken, and a fluid of an outer phase covers the fluid of the middle phase.

Abstract: Disclosed in the present invention is a new triptolide derivative as shown in formula (I). Also disclosed in the present invention are a preparation method for the compound and the medical use thereof in preparation of anti-cancer drugs. Triptolide acrylate of the present invention and a pharmaceutically acceptable salt thereof have anti-cancer activity, and after animal in-vivo experiments, can effectively inhibit tumor growth in animals. A plurality of in-vitro experiments proves that same can significantly increase the protein expression quantity of p53, promote the apoptosis of tumor cells, effectively inhibit the growth of the tumor cells, and have the effect of inhibiting metastasis of cancer cells. More importantly, the toxicity of the compound to normal cells is less than that of triptolide.

Abstract: A global and local binary pattern image crack segmentation method based on robot vision comprises the following steps: enhancing a contrast of an acquired original image to obtain an enhanced map; using an improved local binary pattern detection algorithm to process the enhanced map and construct a saliency map; using the enhanced map and the saliency map to segment cracks and obtaining a global and local binary pattern automatic crack segmentation method; and evaluating performance of the obtained global and local binary pattern automatic crack segmentation method. The present application uses logarithmic transformation to enhance the contrast of a crack image, so that information of dark parts of the cracks is richer. Texture features of a rotation invariant local binary pattern are improved. Global information of four directions is integrated, and the law of universal gravitation and gray and roundness features are introduced to correct crack segmentation results, thereby improving segmentation accuracy.

Abstract: This invention provides a strengthening and tumor eliminating traditional Chinese medicine composition, its preparation method and application, which specifically relate to the technical field of the treatment of intermediate and advanced stage and postoperative malignant tumor, wherein the strengthening and tumor eliminating traditional Chinese medicine composition comprises: 8-30 parts of Radix codonopsis, 5-30 parts of Rhizoma atractylodis Macrocephalae, 5-30 parts of Poria cocos, 5-30 parts of Pseudobulb of Appendiculate cremastra, 5-30 parts of Scutellaria barbata, 5-30 parts of Sarcandra glabra, 3-30 parts of peach kernel, 2-30 parts of Ligustrum lucidum, 5-30 parts of Eclipta and 1-20 parts of licorice. This invention also provides a preparation method of the described strengthening and tumor eliminating traditional Chinese medicine composition.

Abstract: The present disclosure provides a method for automatic modeling of an architecture based on an architectural drawing, comprising steps of: reading parameter information of the architectural drawing, identifying a category to which any architectural object belongs by acquiring line segments constituting the architectural object and coordinate data of endpoints of the line segments; generating a binary file or a preset number of binary files based on the coordinate data and elevation data of the endpoints of all the line segments of architectural objects belonging to the same category for all storeys of the architectural drawing; optimizing the binary file or the binary files corresponding to the architectural objects belonging to the same category for all the storeys of the architectural drawing; and generating a three-dimensional model of the architecture. The modeling precision and modeling efficiency of the architecture can be improved by adopting the technical solution of the present disclosure.

Abstract: A novel power generation type electromagnetic damping tuned mass damper comprises a connecting plate, a supporting guide rail fixed to the connecting plate, an mass block, a mounting assembly fixed to the mass block and a power generation type electromagnetic damping mechanism mounted on the mounting assembly. The power generation type electromagnetic damping mechanism comprises a power generation type electromagnetic damping assembly mounted on the mounting assembly, a roller rotatably mounted on the mounting assembly, a driving wheel mounted on the roller, a driven wheel mounted at an output end of the power generation type electromagnetic damping assembly and a conveyor belt sleeved on the driving wheel and the driven wheel; the roller is mounted on the supporting guide rail in a rolling manner, and the rotating centers of the roller and the driving wheel are the same and the roller and the driving wheel rotate synchronously.

Abstract: The invention discloses a binocular robot for bridge underwater detection based on 5G communication. The robot includes a body, a base, a power arm, a video collection component, a communication component and a power component. The underwater part of the bridge may be collected in the form of a video by the configured video collection component, and the robot may be driven by the power component to move underwater. Driven by a first motor, a binocular camera may rotate to observe various orientations underwater, and meanwhile may drive a cleaning component coordinated with an electric top block to wipe the lens of the binocular camera, so that the video information may be collected clearly underwater. Finally, the video information may be transmitted to a worker on the water through the communication component to achieve the effect of remote detection, which saves the underwater detection cost and improves detection efficiency.

Abstract: The present invention discloses a drug recommendation method and system. The method includes: obtaining a drug information set related to a cancer to be treated and a gene set for an individual to be treated; calculating a treatment level of each drug according to side effect information of each drug and gene information targeted by each drug; selecting a drug of the highest treatment level to be added to the selected drug set; deleting a gene corresponding to the drug of the highest treatment level from the gene set; calculating the number of targeted genes of each drug; determining whether a value greater than a preset number value exists in the number of targeted genes, to obtain a determining result; if not, determining a drug in the selected drug set as a recommended drug; and if yes, returning to the treatment level calculating step. The drug recommendation method and system of the present invention provide recommendation of a corresponding drug for a specific disease.

Abstract: The present invention relates to a homogeneous polysaccharide with an immunoregulation activity and a preparation method thereof. The homogeneous polysaccharide with the immunoregulation activity is a single chromatographic peak and has a molecular weight of 6880±50 Da and an optical rotation value of 158.4±0.5°. An infrared spectrum has an ?-configuration sugar characteristic absorption peak at 847.6 cm?1. Hydrogen-proton characteristic chemical shifts in hydrogen spectra of the polysaccharide are ? 5.40, 3.95, 3.84 and 3.61. Carbon signal characteristic chemical shifts in carbon spectra are ? 99.6, 76.6, 73.3, 71.5, 71.1 and 60.4. The homogeneous polysaccharide has an effect of enhancing body immunity, can achieve excellent anti-tumor, antiviral and anti-infection effects and the like in regulation of immunity-related diseases, and has potential development values in drug and health care product industries for treatment and prevention of the diseases.

Abstract: The invention provides a cushioning mechanism comprising a base, an equal-width cam mechanism, a limiting bracket, a ball screw, two groups of energy dissipaters and energy dissipater fixing bases, wherein the equal-width cam mechanism, the limiting bracket, the ball screw, the two groups of energy dissipaters and the energy dissipater fixing bases are mounted on the base. The equal-width cam mechanism comprises a quadrilateral frame and a cam mounted in the quadrilateral frame. The cam is connected with a nut of the ball screw. The two groups of energy dissipaters are mounted on the energy dissipater fixing bases on the two sides of the equal-width cam mechanism separately. The ends, away from the energy dissipater fixing bases, of the two groups of energy dissipaters are connected with the two sides of the quadrilateral frame separately. The invention is low in manufacturing cost and good in buffering and limiting effect.

Abstract: Provided is a method for inhibiting the growth of tumor cells comprising administering to an individual in need of treatment, a composition comprising a therapeutically effective amount of Lappaol F. Also provided are compositions comprising Lappaol F and a pharmaceutically acceptable carrier.

Abstract: The present invention relates to a use of patchouli alcohol in the preparation of a drug against Helicobacter pylori. The drug according to the present invention is composed of the patchouli alcohol and pharmaceutically acceptable additives, wherein the content of the patchouli alcohol is 0.5-70%. The patchouli alcohol according to the present invention has a quite narrow antimicrobial spectrum, and may selectively inhibit Helicobacter pylori without influencing growth and propagation of other bacterial populations (including other gram negative bacteria). The patchouli alcohol may kill Helicobacter pylori without damaging probiotics, and may keep an ecological balance of bacterial populations in the intestinal tract of human body. Therefore, the patchouli alcohol may be used for treatment of diseases caused by infection of Helicobacter pylori, such as gastritis, peptic ulcer and early gastric cancer.