Abstract: Disclosed are a solar seawater desalination membrane, a preparation method and a seawater desalination treatment method thereof. The preparation method includes: carrying out hydrophilic treatment on a first carbon cloth to obtain a second carbon cloth with hydrophilicity greater than that of the first carbon cloth; an average pore size of the second carbon cloth is of micron-scale; carrying out a coating treatment on the second carbon cloth based on a preset copper mesh to obtain a first cloth membrane; processing the first cloth membrane to obtain a second cloth membrane; the second cloth membrane includes a graphdiyne structure and the average pore size of the second cloth membrane is of nanometer-scale; processing the second cloth membrane to obtain the solar seawater desalination membrane. The solar seawater desalination membrane contains poly-dopamine particles, and the average pore size of the membrane is smaller than that of the second cloth membrane.

Abstract: The embodiments of the present application relate to a data processing method and device based on electronic commerce. The data processing method includes: obtaining data including user searching logs and logistics information; obtaining descending ranks of region-based keyword weights according to the data; obtaining feature values of a keyword in respective regions according to the descending ranks of the region-based keyword weights; and marking a hotspot region corresponding to the keyword according to the feature values.

Abstract: The present disclosure relates to a method and device for searching. The method includes: receiving a search condition from a client; extracting a search category from the search condition; determining whether the search condition comprising conditioning property values selected by users; if the search condition comprising the conditioning property values, obtaining property items corresponding to each of the conditioning property values; conditioning clustering the property values one by one, wherein the conditioning clustering comprises obtaining an object clustering result set corresponding to each property value by using the search categories and all conditioning property values whose property value and the property value to be clustered belong to different property items as a prerequisite clustering condition; and if the object clustering result set not being an empty set, returning the object clustering result set to the client. The method and device of present disclosure has improved search efficiency.

Abstract: The present disclosure relates to a method and device for searching. The method includes: receiving a search condition from a client; extracting a search category from the search condition; determining whether the search condition comprising conditioning property values selected by users; if the search condition comprising the conditioning property values, obtaining property items corresponding to each of the conditioning property values; conditioning clustering the property values one by one, wherein the conditioning clustering comprises obtaining an object clustering result set corresponding to each property value by using the search categories and all conditioning property values whose property value and the property value to be clustered belong to different property items as a prerequisite clustering condition; and if the object clustering result set not being an empty set, returning the object clustering result set to the client. The method and device of present disclosure has improved search efficiency.

Abstract: A wind turbine blade (112) is situated on a wind turbine (100). The wind turbine blade (112) includes a tip portion (122) and an obstruction removal system (200). The tip 212 portion (122) comprises an end wall which defines an opening. The obstruction removal system (200) is positioned with respect to the blade (112) so as to remove obstructions from the opening.