Abstract: A retractable door sill, including: a mounting base, the mounting base including an upper fixing base and a lower fixing base; a rotating drum, the rotating drum being arranged between the upper fixing base and the lower fixing base, a partition cloth, a torsion spring being configured to make the rotating drum rotate in one direction around its axis, the rotating drum wind up the partition cloth; and an adjusting device, the adjusting device comprising an adjusting rod and an adjusting mechanism, one end of the torsion spring being connected to the rotating drum, the other end of the torsion spring being connected to the adjusting rod of the adjusting device, the adjusting mechanism being configured to enable the adjusting rod to rotate unidirectionally around its own axis, and the adjusting rod being configured to change a torsional deformation of the torsion spring through its own rotation.

Abstract: Autotrophic nitrogen fixation genes and an autotrophic nitrogenase expression cassette for plants and uses thereof are disclosed. Nitrogenase related genes of nitrogen fixation gene cluster from Paenibacillus sp. are specifically optimized by plant expression patterns through synthetic biology, to obtain autotrophic nitrogen fixation genes, which are then constructed into plant constitutive expression units. The expression units are assembled in a plant expression vector by isocaudarner cloning method and transformed into plants, thereby realizing autotrophic nitrogen fixation of the plants.

Abstract: An alkene-containing amide compound of formula (I) and agriculturally acceptable salts thereof can be used as herbicides.

Abstract: A retractable door sill, including: a mounting base, the mounting base including an upper fixing base and a lower fixing base; a rotating drum, the rotating drum being arranged between the tipper fixing base and the lower fixing base, a partition cloth, a torsion spring being configured to make the rotating drum rotate in one direction around its axis, the rotating drum wind up the partition cloth; and an adjusting device, the adjusting device comprising an adjusting rod and an adjusting mechanism, one end of the torsion spring being connected to the rotating drum, the other end of the torsion spring being connected to the adjusting rod of the adjusting device, the adjusting mechanism being configured to enable the adjusting rod to rotate unidirectionally around its own axis, and the adjusting rod being configured to change a torsional deformation of the torsion spring through its own rotation.

Abstract: An isoxazoline compound with optical activity is shown in the formula (I). The compound of the formula (I) has excellent herbicidal activity, can be used for weeding pre- and post-emergence, and can also be used for soil treatment. The compound of the formula (I) can effectively control various broad-leaved weeds, grass weeds and Cyperaceae weeds, and can control various resistant weeds, such as glyphosate-resistant weeds. The excellent weeding effect can be obtained at a low dose. The compound has good safety to crops such as corn, wheat, rice, soybean and sugar beet. The compound can be used as a selective herbicide in crop fields in agriculture, and can also be used as a non-selective herbicide in non-cultivated land, fallow land, woodland, orchards and ridges.

Abstract: The present disclosure relates to a connector and method for connecting a coaxial cable to a printed circuit board. The connector comprises: a connector, which comprises a cavity penetrating the connector, such that the connector body comprises a first opening and a second opening; an inner contact arranged in the cavity of the connector body, wherein the first end of the inner contact extends from the first opening and the second end of the internal contact is located in the cavity; a plurality of outer contacts arranged on the end face of the connector body, which extend in a direction perpendicular to the end face; a dielectric spacer provided in the cavity of the connector body for separating the inner contact from the plurality of outer contacts; and a bushing element being attachable to the outer conductor of the coaxial cable to form an electrical connection between the plurality of outer contacts of the connector and the outer conductor of the coaxial cable.

Abstract: Disclosed are a dental material with transmittance and color gradients and a method of preparing the dental material. The method includes (1) preparing at least three types of composite resin material precursor powders; (2) sequentially adding the precursor powders into a mold and performing dry pressing to obtain a preform body; alternatively, (2?) dry pressing the first type of precursor powder into a first green body, wrapping the first green body with the second type of precursor powder and then performing dry pressing to obtain a second green body, and repeating the wrapping and dry pressing operations until all types of precursor powder are dry pressed to obtain a preform body; and (3) performing hot-pressing consolidation on the preform body to obtain the desired dental material.

Abstract: A coaxial cable-connector assembly includes: (a) a coaxial cable comprising an inner conductor, a dielectric layer circumferentially overlying the inner conductor, an outer conductor circumferentially overlying the inner conductor, and a polymeric jacket circumferentially overlying the outer conductor; (b) a connector adapter, comprising an inner contact that is electrically connected to the inner conductor, an outer sleeve that is in electrical contact with the outer conductor, and a dielectric spacer interposed between the inner contact and the outer sleeve, and (c) a coaxial connector having an outer connector body, the outer connector body having a mating end configured to mate with a mating connector and an adapter ring, the adapter ring configured to engage and electrically connect to the outer sleeve.

Abstract: A coaxial connector comprises an outer conductor, an inner conductor, and a dielectric spacer disposed between the outer conductor and the inner conductor. The outer conductor includes a first outer conductor component and a second outer conductor component configured to be floatable axially and radially relative to the first outer conductor component. The inner conductor includes a first inner conductor component and a second inner conductor component configured to be floatable axially and radially relative to the first inner conductor component. The coaxial connector further includes a first elastic element disposed around an outer circumference of the proximal portion of the second outer conductor component, and a second elastic element disposed in the cavity of the first inner conductor component. The coaxial connector is self-adaptive for the mating, and is particularly suitable for board-to-board connector assemblies and may ensure a high return loss performance and good PIM characteristics.

Abstract: An optical fiber connector includes: a cylindrical connector body; an optical fiber connection assembly disposed within the connector body proximate to a proximal end of the connector body, the optical fiber connection assembly including a support and at least one elongate member fixed to and extending through the support, the elongate member being configured to couple an optical fiber of an optical fiber cable; a locking assembly for holding the optical fiber cable, the locking assembly being disposed proximate to a distal end of the optical fiber connection assembly; and a sealing element disposed at a distal end of the optical fiber connector, the sealing element being configured to seal the connection between the distal end of the optical fiber connector and an outer periphery of the optical fiber cable.

Abstract: A transcript of a conference (e.g., a video conference, an audio conference, or a telephone call with two or more participants) is processed to extract a conference summary. A graphical user interface is presented that enables a user to edit highlighting to select portions of a conference recording for inclusion in the conference summary. The user can edit highlighting on strings of a transcript and/or on a playback slide bar and the highlighting edits are propagated to both of these interfaces. Video clips selected for inclusion in a summary based on timestamps of strings in a transcript may be extended forward in time to incorporate a nearest I-frame of video. The short video or audio summary may be presented to users along with a text summary of the conference to enable efficient storage and transmission of information from the conference within a unified communications system.

Abstract: The present disclosure relates to a modular connector assembly and a base station antenna. The modular connector assembly comprises a support and a plurality of connectors mounted on the support. The support is configured as a one-piece support and provided with a plurality of through holes for mounting of the connectors. Each connector is configured to be formed of a first component and a second component that are connectable to each other. The first component and the second component of each connector are located on opposite sides of the support, respectively, are connected to each other by passing through the through holes in the support, and sandwich the support therebetween, thereby fixedly mounting each connector to the support.

Abstract: In accordance with embodiments of the present disclosure, a tonneau cover for covering a pickup truck's cargo bed may include a frame structure for attaching to walls of the cargo bed. The tonneau cover may include a soft cover for covering the cargo bed, wherein the soft cover has edges that can be attached to the frame structure, and a cross bar attached to an inner side of the soft cover. When the soft cover is in a closed position, two ends of the cross bar are supported by the frame structure, and at least a portion of the soft cover is supported by the cross bar.

Abstract: The present disclosure relates to a color-coded cable identification assembly and a cable. The cable identification assembly comprises: a support element including a fixing element adapted to fix the support element to a cable; and a plurality of identification elements, which are detachably mounted on the support element with the cable being located between the support element and the plurality of identification elements. Each identification element has a predetermined color so that the plurality of identification elements are capable of forming a predetermined color code to identify the cable. The cable identification assembly according to the present disclosure can be very easily and rapidly mounted to the cable, thereby greatly saving the installation time of workers and thus reducing the labor cost and the chance of making a mistake.

Abstract: A coaxial connector comprises an outer conductor, an inner conductor, and a dielectric spacer disposed between the outer conductor and the inner conductor. The outer conductor includes a first outer conductor component and a second outer conductor component configured to be floatable axially and radially relative to the first outer conductor component. The inner conductor includes a first inner conductor component and a second inner conductor component configured to be floatable axially and radially relative to the first inner conductor component. The coaxial connector further includes a first elastic element disposed around an outer circumference of the proximal portion of the second outer conductor component, and a second elastic element disposed in the cavity of the first inner conductor component. The coaxial connector is self-adaptive for the mating, and is particularly suitable for board-to-board connector assemblies and may ensure a high return loss performance and good PIM characteristics.

Abstract: The present application belongs to the technical field of mRNA preparation, and discloses a system and a method for preparing mRNA, which can shorten a preparation period, and avoid degradation of an mRNA product due to the introduction of RNase by manual pipetting. The system for preparing mRNA comprises a PCR amplification device configured to amplify DNA; a plurality of raw reagent tubes, each of which is configured to provide a single reagent; and a reaction device configured to allow reagents to react.

Abstract: The present invention relates to a WEE1 inhibitor, and the preparation and use thereof. The WEE1 inhibitor of the present invention is a compound of Formula I or a compound of Formula II, or a pharmaceutically acceptable salt, solvate, polymorph or tautomer thereof. The present invention also provides use of the WEE1 inhibitor in the manufacture of a medicament for the treatment of a disease associated with WEE1 activity. The WEE1 inhibitor provided by the present invention can effectively treat the disease associated with WEE1 activity.