Abstract: A transparent antenna, wherein the transparent antenna includes: a supporting plate and a radiation element provided on one side of the supporting plate, wherein the radiation element includes a substrate and a first radiator provided on one side of the substrate, the first radiator has a grid-line-like structure, and the shape of the outer contour of the first radiator is a rectangle having at least one cut corner; and a connecting component, wherein the connecting component is electrically connected to the radiation element.

Abstract: The disclosure relates to medical devices and methods of assembling medical devices, such as MRI-compatible interventional wireguides. An example of a wireguide includes a series of individual segments, a plurality of connectors, and a plurality of spacers. Each segment in the series of individual segments has a first end and a second end. Each connector of the plurality of connectors joins adjacent segments in the series of individual segments to one another such that a first end of a first segment and a second end of a second segment in the series of individual segments are attached to a connector of the plurality of connectors. A spacer of the plurality of spacers is disposed between each pair of adjacent segments in the series of individual segments. Each of the segments in the series of individual segments is electrically insulated from an adjacent segment in the series of individual segments.

Abstract: The present disclosure relates to the field of biomedicine, and specifically provides a 5?-phosphate modified nucleoside, and a preparation method and use thereof. The present disclosure provides a modified nucleoside compound, wherein the modified nucleoside compound is a compound represented by formula (I), a pharmaceutically acceptable salt thereof, or a stereoisomer thereof. The oligonucleotide comprising the modified nucleoside compound provided by the present disclosure exhibits significantly enhanced drug efficacy.

Abstract: A high-low temperature and high-frequency angular vibration device includes an angular vibration table assembly, a temperature-controllable chamber and a control system. The angular vibration table assembly includes a base, a hydrostatic bearing, a torque motor, an adapter assembly, an encoder, a conductive slip ring, a thermal-insulating shaft and a worktable. The hydrostatic bearing includes a bearing seat, an upper bearing sleeve, a hydrostatic shaft and a lower bearing sleeve. The torque motor includes a stator and a rotor, and is internally provided with a motor shaft. The adapter assembly includes an adapter flange and a transmission key. The thermal-insulating shaft includes an upper shaft section, a middle shaft section and a lower section. The control system is configured to control a temperature of the temperature-controllable chamber, and an angular frequency, an angular rate and an angular position of the angular vibration table assembly.

Abstract: The disclosure relates to a field of electrical technology, and particularly discloses an electrical apparatus, a door opening and closing device and a control method of a clutch thereof. The door opening and closing device includes: a drive mechanism, a door ejection mechanism, a door rotation mechanism and an angle acquisition unit. a drive mechanism including a driver, a first transmission assembly, a second transmission assembly connected to the driver and simultaneously separably connected to the first transmission assembly, and a clutch-ejection-push assembly pushing the second transmission assembly to separate from or connect to the first transmission assembly; and a linkage gear connected to the first transmission assembly and simultaneously connected to the door ejection mechanism 00) and the door rotation mechanism. The angle acquisition unit is configured to acquire a rotation angle of the linkage gear.

Abstract: A method for forming an optical fiber having at least one of a microresonator and a coupler integrated therein is described. The method includes providing an optical fiber having a light guiding core. modifying at least one region of the optical fiber using a laser, immersing the optical fiber having the at least one region as modified inside an etchant that selectively etches the at least one region as modified to generate at least one of a microresonator and a coupler integrated in the optical fiber, and removing the optical fiber from the etchant. The optical fiber as removed from the etchant may include the at least one of the microresonator and the coupler. The method may further include heating the optical fiber using, for example, a CO2 laser or other heating apparatus, to smoothen surface irregularities of at least one of the microresonator and the coupler.

Abstract: The present disclosure provides a double-stranded RNAi agent for targeting and regulating HBV gene expression and a use thereof. The double-stranded RNAi agent comprises an antisense strand and a sense strand complementary to the antisense strand forming a duplex region. The nucleotide sequence of the antisense strand is as shown in SEQ ID NO: 8, 11, or 13, or the nucleotide sequence of the antisense strand is a modified sequence of the sequence shown in SEQ ID NO: 8, 11, or 13. Results from cell and animal experiments demonstrate that the double-stranded RNAi agent provided in the present disclosure can significantly reduce the expression of one or more HBV genes, block the viral life cycle, and can be used to develop drugs for treating diseases related to HBV gene expression.

Abstract: The ceiling antenna includes a reflecting bottom plate, wherein the reflecting bottom plate has a via hole; a supporting plate, wherein the supporting plate is fixed to the reflecting bottom plate, and a plane where the supporting plate is located is perpendicular to a plane where the reflecting bottom plate is located; a radiation oscillator, wherein the radiation oscillator is adhered to the supporting plate, the radiation oscillator includes a first radiator, the first radiator has a grid-line-like structure, and a shape of an outer contour of the first radiator is a rectangle having at least one cut corner; and a connector, wherein the connector is located on one side of the reflecting bottom plate that is away from the radiation oscillator, the via hole exposes a part of area of the connector, and the connector is electrically connected to the radiation oscillator through the via hole.

Abstract: The present disclosure provides a polyamide composite, including the following components in parts by weight: 77.2 parts to 94.8 parts of PAXI/XT, 5 parts to 20 parts of a semi-crystalline polyamide, and 0.2 part to 0.8 part of a powder of organosilicon elastomer including a methacryloxy functional group. The semi-crystalline polyamide is at least one selected from the group consisting of PA66, PA610, PA612, PA106, PA1010, and PA1012, and the PAXI/XT is a copolymer of an aliphatic diamine X, isophthalic acid I, and terephthalic acid T. The polyamide composite has advantages such as high light transmittance, high haze (excellent light-scattering performance), and prominent chemical resistance, and is suitable for the preparation of navigation lights for plant protection drones.

Abstract: Disclosed herein are synthetic nanoparticles, pharmaceutical compositions, kits, or methods for treating and/or preventing cancer. In some embodiments, the synthetic nanoparticles and/or pharmaceutical compositions comprises a pH sensitive liposome, an apolipoprotein, and andrographolide or derivative thereof. In some embodiments, the synthetic nanoparticles are delivered to a subject for treatment of cancer. In some embodiments, the cancer is T-cell lymphoma or B-cell lymphoma.