Abstract: The present aspects include a system for de-powdering a three-dimensionally (3D) printed structure. The structure comprising a first component holder configured to removably hold the 3D printed structure at an initial orientation with respect to at least one opening to a hollow portion within the 3D printed structure; a fluid system configured control a fluid to at least apply the fluid to the hollow portion or remove the fluid from the hollow portion to remove a powder from the hollow portion; and a movement system configured to move at least the 3D printed structure or the fluid system according to a movement procedure based on a configuration of the hollow portion.

Abstract: Methods include pumping a fracturing pad fluid into a subterranean formation under conditions of sufficient rate and pressure to create at least one fracture in the subterranean formation, the fracturing pad fluid including a carrier fluid and a plurality of bridging particles, the bridging particles forming a bridge in a fracture tip of a far field region of the formation. Methods further include pumping a first plurality of fibers into the subterranean formation to form a low permeability plug with the bridging particles, and pumping a proppant fluid comprising a plurality of proppant particles.

Abstract: In a lid, in particular for food packaging, such as yogurt containers or the like, or a label, in particular a label for the neck of a bottle, comprising an embossed aluminum foil or an embossed aluminum composite foil, plastic foil, plastic composite foil, paper foil or paper composite foil, provision is made, in order to attain appealing surface properties, the feasibility of printing even small characters, and an effective separation process, for the embossing to consist of a plurality of approximately parallel embossed lines, wherein preferably at least some embossed line have interruptions and/or at least in sections, different widths and/or different embossing depths.