Abstract: The present disclosure provides an antenna, a method for manufacturing an antenna and a communication system. The antenna includes: a dielectric layer; a first electrode having at least one first opening therein; at least one radiating structure on a side of the dielectric layer different from that with the first electrode thereon; an orthographic projection of the radiating structure on the dielectric layer is located in that of the first opening on the dielectric layer; each radiating structure includes a second electrode and a third electrode, orthographic projections of the second and third electrodes on the dielectric layer are located in that of the first opening on the dielectric layer, the orthographic projections of the second and third electrodes on the dielectric layer are not overlapped; at least one first feed line and at least one second feed line.

Abstract: A method for preparing a tumor-derived microparticle by a microwave includes the following steps: step 1, Lewis lung carcinoma (LLC) of a lung adenocarcinoma cell line is taken and then the LCC is cultured in a culture dish for more than 24 hours (h) to obtain cultured cells; step 2, microwave heating treatment is performed on the cultured cells obtained in step 1 to obtain treated cells; step 3, the treated cells obtained in step 2 are placed into a constant temperature incubator for cultivation for 24 h; and step 4, a supernatant of cells is collected from the culture dish cultured in step 3, and multiple centrifugation treatments is performed on the supernatant by using a density gradient centrifugation method to obtain a precipitate which is the tumor-derived microparticle TMPMW.

Abstract: An ultra-wideband electromagnetic band gap (EBG) structure includes multiple EBG units in an array. Each EBG unit includes a power plane, a dielectric substrate and a ground plane from top to bottom. The power plane includes a patch, a coupled complementary split ring resonator (C-CSRR) and a plurality of semi-improved Z-bridge structures. Each edge of the patch is provided with a semi-improved Z-bridge structure. The C-CSRR is provided within a ring formed by the semi-improved Z-bridge structures. The Z-bridge structure includes a first horizontal branch, a first vertical branch, a second horizontal branch and a second vertical branch connected in sequence. The second vertical branch is connected to the patch. First horizontal branches of adjacent EBG units are connected to each other. A circuit board including the aforementioned EBG structure is also provided.

Abstract: The present invention relates to a powder dry-pressing molding device and method.

Abstract: Systems, methods, media, and other embodiments associated with desensitizing data in cloning are described. One example method embodiment includes identifying a column to be desensitized and preparing a set of executable instructions to desensitize the column. The example method may also include organizing the set of executable instructions based on table-oriented relationships between instructions and then further organizing the set of executable instructions based on determinations concerning execution efficiency. The example method may be performed contemporaneously with the cloning of a database to produce a desensitized clone.

Abstract: Systems, methods, media, and other embodiments associated with desensitizing data in cloning are described. One example method embodiment includes identifying a column to be desensitized and preparing a set of executable instructions to desensitize the column. The example method may also include organizing the set of executable instructions based on table-oriented relationships between instructions and then further organizing the set of executable instructions based on determinations concerning execution efficiency. The example method may be performed contemporaneously with the cloning of a database to produce a desensitized clone.