Abstract: The present invention relates to compounds of formula (I), wherein R1 to R4 are as described herein, and their pharmaceutically acceptable salt, enantiomer or diastereomer thereof, and compositions including the compounds and methods of using the compounds.

Abstract: Disclosed in the present disclosure are a novel injection polyaminopolycarboxylic acid-modified abiraterone derivative for treatment of prostate tumor, a pharmaceutical preparation containing the polyaminopolycarboxylic acid-modified abiraterone derivative, a preparation method, and an application. The polyaminopolycarboxylic acid-modified abiraterone derivative has the following structure (I). The polyaminopolycarboxylic acid-modified abiraterone derivative in the present disclosure has good water solubility, can be completely dissolved in an aqueous solution of sodium bicarbonate, is simple and convenient to prepare, high in yield, and suitable for large-scale production, has a remarkable effect in resisting tumors, can be used for treating prostate cancer tumor, and has the characteristics of high efficiency and low toxicity.

Abstract: Orthosis device and related methods for controlling the device to counteract a gravitational force exerted on the person without directing the orthosis device in a pre-determined pattern of motion.

Abstract: Disclosed are a metal aluminum nano-adjuvant, a vaccine composition and a preparation method therefor and a use thereof. The vaccine adjuvant comprises metal aluminum nanoparticles, and can be used as a candidate adjuvant for preventive vaccines and therapeutic vaccines for various diseases such as infections, autoimmune diseases and tumors. The combined use of the vaccine adjuvant provided by the present disclosure and antigen can effectively enhance the humoral immune response and the cellular immune response of the vaccine, and the enhancement effect is significantly better than that of the commercially available aluminum hydroxide adjuvant.

Abstract: A wireless network connection method is provided. The method includes: receiving, from a user terminal, an access request to a wireless access point, the access request including a media access control MAC address of the user terminal; sending, by the wireless access point, a key query request to an authentication server, the key query request including the MAC address; and receiving a key query result corresponding to the MAC address of the user terminal if the wireless access point is a trusted wireless access point. The method further includes obtaining a first authentication key corresponding to the MAC address of the user terminal according to the key query result; and negotiating with the user terminal, according to the first authentication key and a second authentication key, to establish an encrypted wireless network connection. The second authentication key is generated by the user terminal corresponding to the MAC address.

Abstract: Methods and systems for determining a status of a hydrocarbon production site are provided. The systems and methods include defining an area about a hydrocarbon well location and obtaining a time series of mobile geolocation data for at least one mobile device located within the area about the hydrocarbon well location. The times series of mobile geolocation data is processed and probabilities that the mobile geolocation data is associated with a drilling activity, a fracking activity, a tie-in activity, and/or an absence of drilling activity, fracking activity, and/or tie-in activity are output. The mobile geolocation data is categorized, based on the probabilities, as being associated with one of drilling activity, fracking activity, or absence of drilling activity and fracking activity.

Abstract: Provided are a method and an apparatus for providing various information based on a web page with improved space utilization of the web page. The information providing apparatus may include a processor configured to detect at least one blank area included in a web page, detect target data having a size matching size information regarding the at least one blank area, and push the target data to the at least one blank area by using position information regarding the at least one blank area, thereby displaying the web page and the target data together.

Abstract: Embodiments of this application relate to the field of network security, and disclose a wireless network connection method, apparatus, and system. A method for establishing wireless network connection includes receiving, by an authorization server, an access request sent by a radio access point. The access request carries user information of a user terminal that attempts to access the radio access point. The method then includes determining whether the radio access point is a trusted radio access point, performing a first identity authentication on the user terminal when the radio access point is determined to be the trusted radio access point, generating a master key for the user terminal based on the user information, sending the master key to the user terminal when the first identity authentication succeeds and sending the master key to the radio access point.

Abstract: Methods and systems for determining a status of a hydrocarbon production site are provided. The systems and methods include defining an area about a hydrocarbon well location and obtaining a time series of mobile geolocation data for at least one mobile device located within the area about the hydrocarbon well location. The times series of mobile geolocation data is processed and probabilities that the mobile geolocation data is associated with a drilling activity, a fracking activity, a tie-in activity, and/or an absence of drilling activity, fracking activity, and/or tie-in activity are output. The mobile geolocation data is categorized, based on the probabilities, as being associated with one of drilling activity, fracking activity, or absence of drilling activity and fracking activity.

Abstract: The present disclosure provides a method for reporting brightness-adjusting data from a smart lighting device, a smart lighting device, and a gateway. The method includes: receiving a brightness-adjusting command from a smart terminal, the brightness-adjusting command containing brightness-adjusting data having a desired brightness value; adjusting a brightness value to the desired brightness value according to the brightness-adjusting command; and reporting the brightness-adjusting data and a serial number corresponding to the brightness-adjusting data to a gateway.

Abstract: A wireless network connection method is provided. The method includes: receiving, from a user terminal, an access request to a wireless access point, the access request including a media access control MAC address of the user terminal; sending, by the wireless access point, a key query request to an authentication server, the key query request including the MAC address; and receiving a key query result corresponding to the MAC address of the user terminal if the wireless access point is a trusted wireless access point. The method further includes obtaining a first authentication key corresponding to the MAC address of the user terminal according to the key query result; and negotiating with the user terminal, according to the first authentication key and a second authentication key, to establish an encrypted wireless network connection. The second authentication key is generated by the user terminal corresponding to the MAC address.

Abstract: The present disclosure provides a method for reporting brightness-adjusting data from a smart lighting device, a smart lighting device, and a gateway. The method includes: receiving a brightness-adjusting command from a smart terminal, the brightness-adjusting command containing brightness-adjusting data having a desired brightness value; adjusting a brightness value to the desired brightness value according to the brightness-adjusting command; and reporting the brightness-adjusting data and a serial number corresponding to the brightness-adjusting data to a gateway.

Abstract: Embodiments of this application relate to the field of network security, and disclose a wireless network connection method, apparatus, and system. A method for establishing wireless network connection includes receiving, by an authorization server, an access request sent by a radio access point. The access request carries user information of a user terminal that attempts to access the radio access point. The method then includes determining whether the radio access point is a trusted radio access point, performing a first identity authentication on the user terminal when the radio access point is determined to be the trusted radio access point, generating a master key for the user terminal based on the user information, sending the master key to the user terminal when the first identity authentication succeeds and sending the master key to the radio access point.

Abstract: A time grating linear displacement sensor based on an alternating light field, comprising a fixed pole plate and a movable pole plate, wherein the upper part and the lower part of the fixed pole plate are respectively provided with a row of square fixed pole plate light-transmitting surfaces which are uniformly distributed; the upper part and the lower part at the rear of the fixed pole plate are respectively provided with one group of light-emitting devices; the upper part and the lower part of the movable pole plate are respectively provided with two semi-sinusoidal movable pole plate light-transmitting surfaces; and four light-sensitive receiving units are fixed on the movable pole plate, the photoelectric receiving surfaces of the light-sensitive receiving units covering the movable pole plate light-transmitting surfaces. The two groups of light-emitting devices respectively provide an alternating light field. The movable pole plate moves relative to the fixed pole plate.

Abstract: Provided are a method and an apparatus for providing various information based on a web page with improved space utilization of the web page. The information providing apparatus may include a processor configured to detect at least one blank area included in a web page, detect target data having a size matching size information regarding the at least one blank area, and push the target data to the at least one blank area by using position information regarding the at least one blank area, thereby displaying the web page and the target data together.

Abstract: A time grating linear displacement sensor based on an alternating light field, comprising a fixed pole plate and a movable pole plate, wherein the upper part and the lower part of the fixed pole plate are respectively provided with a row of square fixed pole plate light-transmitting surfaces which are uniformly distributed; the upper part and the lower part at the rear of the fixed pole plate are respectively provided with one group of light-emitting devices; the upper part and the lower part of the movable pole plate are respectively provided with two semi-sinusoidal movable pole plate light-transmitting surfaces; and four light-sensitive receiving units are fixed on the movable pole plate, the photoelectric receiving surfaces of the light-sensitive receiving units covering the movable pole plate light-transmitting surfaces. The two groups of light-emitting devices respectively provide an alternating light field. The movable pole plate moves relative to the fixed pole plate.

Abstract: The disclosure provides an anchor authenticator relocation method and system. The method includes: after an old authenticator accepts an anchor authenticator relocation request of a Mobile Station (MS), a new authenticator sends an authenticator relocation request to an AAA server; when the AAA server's verification on the new authenticator is passed and the old authenticator confirms that the new authenticator is trusted, the anchor authenticator is relocated to the new authenticator. The disclosure provides a detailed solution to perform anchor authenticator relocation without re-authentication.

Abstract: A system, method, and computer program product are provided for preventing communication of unwanted network traffic by holding only a last portion of the network traffic. In use, network traffic associated with a file transfer is received. Additionally, only a last portion of the network traffic associated with the file transfer is held for determining whether the file is unwanted. Further, the last portion of the network traffic associated with the file transfer is conditionally forwarded to a destination device, based on the determination.

Abstract: A method and system for accumulating stillness characteristics is presented. The method and system generates field stillness characteristics for a current pixel of a current field. The field stillness characteristic is accumulated with an accumulated stillness characteristic that corresponds to a pixel location of the current pixel. The accumulated stillness characteristic includes stillness information regarding previous pixels of previous fields in the same pixel location as the current pixel.

Abstract: A system, method, and computer program product are provided for preventing communication of unwanted network traffic by holding only a last portion of the network traffic. In use, network traffic associated with a file transfer is received. Additionally, only a last portion of the network traffic associated with the file transfer is held for determining whether the file is unwanted. Further, the last portion of the network traffic associated with the file transfer is conditionally forwarded to a destination device, based on the determination.