Abstract: Provided are a display panel and a driving method thereof, and a display device. The display panel includes: a base substrate; and multiple subpixels provided at the base substrate, at least one of the multiple subpixels including a reflective electrode, wherein the reflective electrode at least includes a first reflective electrode and a second reflective electrode insulated and spaced apart from each other, the first reflective electrode is provided with a first through hole, the second reflective electrode is provided with a second through hole, and an area of the first through hole is different from an area of the second through hole.

Abstract: A method of detecting an object in an image using a convolutional neural network (CNN) includes generating, based on the image, a plurality of reference feature maps and a corresponding feature pyramid including a plurality of final feature maps; obtaining a proposed region of interest (ROI); generating at least a first context ROI having an area larger than an area of the proposed ROI; assigning the proposed ROI and the first context ROI to a first and second final feature maps having different sizes; extracting, by performing ROI pooling, a first set of features from the first final feature map using the proposed ROI and a second set of features from the second final feature map using the first context ROI; and determining, based on the first and second sets of extracted features, at least one of a location of the object and a class of the object.

Abstract: The present invention provides a multifunctional rock mechanics tester, pertaining to the technical field of mechanics tester, consisting of a base; wherein a power mechanism is mounted on the top of the base, two tension testing mechanisms are arranged on the power mechanism in an up-and-down symmetrical way, a clamping mechanism is mounted on each tension testing mechanism, a rock testing block is clamped between the two clamping mechanisms. The present invention realizes the tension and pressure testing of the rock test block through the arrangement of tension testing mechanism and pressure testing mechanism, thus improving the functionality of the present mechanics tester, which not only reduces the testing cost, but also effectively decreases the occupied space; the present invention solves the problem that the traditional mechanics tester can only complete one kind of test when it is used.

Abstract: An electronic device includes a first antenna, a second antenna, and an interference reduction device. The first antenna is arranged at a first position. The second antenna is arranged at a second position. The second position is different from the first position. The interference reduction device is arranged at a third position. The third position is different from the first position and the second position. The interference reduction device includes a structural feature configured to couple an electromagnetic wave and reduce radiation of the electromagnetic wave.

Abstract: The present invention provides a multifunctional rock mechanics tester, pertaining to the technical field of mechanics tester, consisting of a base; wherein a power mechanism is mounted on the top of the base, two tension testing mechanisms are arranged on the power mechanism in an up-and-down symmetrical way, a clamping mechanism is mounted on each tension testing mechanism, a rock testing block is clamped between the two clamping mechanisms. The present invention realizes the tension and pressure testing of the rock test block through the arrangement of tension testing mechanism and pressure testing mechanism, thus improving the functionality of the present mechanics tester, which not only reduces the testing cost, but also effectively decreases the occupied space; the present invention solves the problem that the traditional mechanics tester can only complete one kind of test when it is used.

Abstract: A spatial prediction method of rice stable isotope based on environmental similarity is provided. The method comprises: describing environmental characteristics of the rice stable isotope; measuring an environmental similarity between a site to be predicted and a sample site; measuring a reliability of the sample site; and carrying out a spatial prediction on the rice stable isotope according to the environmental similarity between the site to be predicted and the sample site and the reliability of the sample site. This method can improve the accuracy of the prediction result.

Abstract: Provided is use of tectorigenin in the preparation of a medicament for treatment of chicken necrotic enteritis. Using tectorigenin for treating chicken necrotic enteritis can significantly reduce the degree of pathological changes in the intestinal tract of chickens with necrotic enteritis, and has a good therapeutic effect on chicken necrotic enteritis caused by Clostridium perfringens.

Abstract: A method of detecting an object in an image using a convolutional neural network (CNN) includes generating, based on the image, a plurality of reference feature maps and a corresponding feature pyramid including a plurality of final feature maps; obtaining a proposed region of interest (ROI); generating at least a first context ROI having an area larger than an area of the proposed ROI; assigning the proposed ROI and the first context ROI to a first and second final feature maps having different sizes; extracting, by performing ROI pooling, a first set of features from the first final feature map using the proposed ROI and a second set of features from the second final feature map using the first context ROI; and determining, based on the first and second sets of extracted features, at least one of a location of the object and a class of the object.

Abstract: A method and apparatus for the distributed, privacy preserving and integrity preserving technical implementation of an order book where a group of computing devices belonging to agents (traders, brokers, or groups thereof) wishing to engage in distributed double auctions and markets can (1) keep private the information about the solvency of the individual agent owing the trader's computer; (2) publicly register the values of buy and sell orders while (a) maintaining confidential the information about the owner of the buy (resp. sell) order and (b) still having the possibility to accrue matched buy/sell transactions to the accounts of the computing devices of the individual agents owing those orders; (3) maintain the financial integrity of the market as implemented by a distributed systems of computing devices; and (4) keep private the possible exit from the market by computing devices operated by agents who could no longer meet their contractual obligations.

Abstract: Provided is use of tectorigenin in the preparation of a medicament for treatment of chicken necrotic enteritis. Using tectorigenin for treating chicken necrotic enteritis can significantly reduce the degree of pathological changes in the intestinal tract of chickens with necrotic enteritis, and has a good therapeutic effect on chicken necrotic enteritis caused by Clostridium perfringens.

Abstract: A metamaterial comprises a plurality of electrically controllable metamaterial units each comprising a varactor diode; the predetermined angle is an angle at which an electromagnetic wave is reflected from a surface of the metamaterial; there is an association relationship between the predetermined angle and the first phase difference; the method comprises: determining a first phase difference between electromagnetic waves reflected by two adjacent electrically controllable metamaterial units in a metamaterial based on a predetermined angle; determining a target capacitance of the varactor diode in each electrically controllable metamaterial unit based on the first phase difference; and adjusting a capacitance of the varactor diode in each electrically controllable metamaterial unit to the target capacitance.

Abstract: The present invention provides the use of one or more active ingredients that can reduce the adverse effects of particulate matter (PM) on the skin, the active ingredients include polyphenolic substances. The active ingredient disclosed herein can significantly reduce the adverse effects of skin caused by PMs, and can be applied in many different aspects, such as skin care products with anti-pollution and anti-haze effect.

Abstract: The present invention discloses a metamaterial, and a method and an apparatus for adjusting a frequency of the metamaterial. The metamaterial includes a substrate material, and an electrically controllable microstructure unit array disposed on the substrate material and including a plurality of electrically controllable microstructure units. Each electrically controllable microstructure unit includes an external metal structure, an internal metal structure, and a varactor diode. The internal metal structure and the external metal structure define a ring-shaped channel. The varactor diode is disposed in the ring-shaped channel of each electrically controllable microstructure unit, and is configured for adjusting an operating frequency of each electrically controllable microstructure unit according to a voltage applied across the varactor diode.

Abstract: A method and apparatus for the distributed, privacy preserving and integrity preserving technical implementation of an order book where a group of computing devices belonging to agents (traders, brokers, or groups thereof) wishing to engage in distributed double auctions and markets can (1) keep private the information about the solvency of the individual agent owing the trader's computer; (2) publicly register the values of buy and sell orders while (a) maintaining confidential the information about the owner of the buy (resp. sell) order and (b) still having the possibility to accrue matched buy/sell transactions to the accounts of the computing devices of the individual agents owing those orders; (3) maintain the financial integrity of the market as implemented by a distributed systems of computing devices; and (4) keep private the possible exit from the market by computing devices operated by agents who could no longer meet their contractual obligations.

Abstract: The present invention relates to a rust removing device for an elevator guide rail and aims at solving a problem of great time and labor taken and insufficient rust removal due to that rust of existing guide rail is removed manually. The rust removing device comprises: a support; a rust removal rack, mounted on the support and covering guide rail; and a rust removal material, arranged on a U-shaped inner wall of the rust removal rack and fitted with a surface of the guide rail. The rust removing device of the present invention has advantages that the rust of the guide rail is removed automatically instead of being removed manually, featured by a high rust removing speed, energy saving, simple maintenance, and less influence on users due to long-time service stop because of rust removal.

Abstract: A metamaterial comprises a plurality of electrically controllable metamaterial units each comprising a varactor diode; the predetermined angle is an angle at which an electromagnetic wave is reflected from a surface of the metamaterial; there is an association relationship between the predetermined angle and the first phase difference; the method comprises: determining a first phase difference between electromagnetic waves reflected by two adjacent electrically controllable metamaterial units in a metamaterial based on a predetermined angle; determining a target capacitance of the varactor diode in each electrically controllable metamaterial unit based on the first phase difference; and adjusting a capacitance of the varactor diode in each electrically controllable metamaterial unit to the target capacitance.

Abstract: The present invention discloses a metamaterial, and a method and an apparatus for adjusting a frequency of the metamaterial. The metamaterial includes a substrate material, and an electrically controllable microstructure unit array disposed on the substrate material and including a plurality of electrically controllable microstructure units. Each electrically controllable microstructure unit includes an external metal structure, an internal metal structure, and a varactor diode. The internal metal structure and the external metal structure define a ring-shaped channel. The varactor diode is disposed in the ring-shaped channel of each electrically controllable microstructure unit, and is configured for adjusting an operating frequency of each electrically controllable microstructure unit according to a voltage applied across the varactor diode.

Abstract: Embodiments of the present application disclose a method and an apparatus for determining a geographical area in which an IP address is located, the method including: acquiring a set of accounts of an application server to which one or more positioning terminals log in during a predetermined time period, wherein the account set is associated with a target IP address; determining a position of a respective positioning terminal corresponding to each account in the account set; collecting statistics for calculation according to the determined positions of the one or more positioning terminals to determine a geographical area in which each positioning terminal is located; and obtaining, according to the area in which each positioning terminal is located, a geographical area in which the target IP address is located. By using the present application, a geographical area with high precision to which an IP address belongs may be determined as needed.

Abstract: A method for positioning terminals includes obtaining location information of positioned terminals; obtaining relevance information of the positioned terminals; obtaining location information of relevance terminals associated with the positioned terminals according to the location information and the relevance information of the positioned terminals. The invention is applied to improve coverage of a LBS service based on users' location information.

Abstract: A method for processing location data of a target user includes obtaining a location data of the target user in a predetermined time range, to get a location data set, wherein a format of each location data in the location data set comprises at least two values, which are a location coordinate and a time value; determining the accumulation regions of the target user according to the location coordinate of each location data of the location data set; determining user behavior description information of the target user at the locations corresponding to each location data according to the determined accumulation region and the time value of each location data, wherein the user behavior description information includes a frequency of the target user appearing in the determined accumulation region under the different time status.