A nanoporous metal structure is made by etching a metal alloy structure of two or more metals. Less than all of the metals are selectively removed (e.g., dissolved in solution) from the alloy in the presence of an alternating voltage profile, for example, a periodic voltage profile. The resulting nanoporous metal structure, having pore openings of about 20 nm to about 500 nm in diameter and a purity of at least about 70%, can be further treated to alter some or all of the structure, and/or to add, remove and/or modify properties thereof.

An electrode, process for preparing the electrode and devices thereof. An electrode comprising at least one metal deposited on a substrate; and at least one electrically conducting polymer. The devices comprising the electrode for energy storage and molecular separation.

An electrodeposition bath, water-washing baths, a first filtration membrane which feeds filtrate and concentrated-solution obtained by filtering electrodeposition-solution in the electrodeposition bath to the water-washing bath in a last stage and the electrodeposition bath, a feed system that feeds filtrate-water obtained by performing ultrafiltration or microfiltration on water after water-washing in the water-washing bath, a second filtration membrane which feeds filtrate and concentrated-solution obtained by filtering the filtrate-water fed by the feed system to the water-washing bath in the last stage and one of the electrodeposition bath and a water-washing bath other than the water-washing bath in the last stage, respectively, and a flow rate adjustment unit that adjusts a feed amount of each of the filtrate obtained by filtration by the first filtration membrane and the filtrate obtained by filtration by the second filtration membrane to the water-washing bath in the last stage are included.

A method relates to manufacturing a sound output apparatus. The method includes processing a flat metal plate to have a shape with through-holes; forming a cylindrical grille by bonding two sides of the processed flat metal panel to each other so that a side corresponding to the upper end of the main shape forms an upper end of the grille and a side corresponding to the lower end of the main shape forms a lower end of the grille. The upper end of the grille is deformed to correspond to a shape of a cover by inserting the cover into an opening formed in an upper surface of the grille. A lower end of the grille is deformed to correspond to a shape of the lower-end holding portion formed in the base, by inserting the lower-end holding portion into a lower opening formed in the grille.

A method relates to manufacturing a sound output apparatus. The method includes processing a flat metal plate to have a shape with through-holes; forming a cylindrical grille by bonding two sides of the processed flat metal panel to each other so that a side corresponding to the upper end of the main shape forms an upper end of the grille and a side corresponding to the lower end of the main shape forms a lower end of the grille. The upper end of the grille is deformed to correspond to a shape of a cover by inserting the cover into an opening formed in an upper surface of the grille. A lower end of the grille is deformed to correspond to a shape of the lower-end holding portion formed in the base, by inserting the lower-end holding portion into a lower opening formed in the grille.

This application provides a housing structure, a production method thereof, and an electronic device. The housing structure includes an appearance effect layer, a metal layer, a connection layer, and a non-metal layer that are laminated. The connection layer is configured to bind the metal layer and the non-metal layer. The appearance effect layer is formed after surface processing is performed on the metal layer. The housing structure includes both the metal layer and the non-metal layer. The metal layer and the non-metal layer are bound by using the connection layer, so that the housing structure has advantages of a metal layer housing and a non-metal layer housing. In addition, the appearance effect layer formed after surface processing is performed on the metal layer can ensure that the housing structure has a metallic appearance with an aesthetic appeal.

An electrocoat system for electrodeposition is described. The system includes an inorganic bismuth-containing compound or a mixture of inorganic and organic bismuth-containing compounds. The system demonstrates a high degree of crosslinking and produces a cured coating with optimal crosslinking and corrosion resistance.

A method for mounting a loudspeaker carrier in a vehicle. The method includes providing a loudspeaker carrier and providing an expandable material. The method further includes arranging the expandable material between the loudspeaker carrier and a mounting site on bodywork of the vehicle and activating the expandable material such that the material expands, forming a foam structure, and causes the loudspeaker to be secured to the bodywork.

A method for mounting a loudspeaker carrier in a vehicle. The method includes providing a loudspeaker carrier and providing an expandable material. The method further includes arranging the expandable material between the loudspeaker carrier and a mounting site on bodywork of the vehicle and activating the expandable material such that the material expands, forming a foam structure, and causes the loudspeaker to be secured to the bodywork.

Described is a micro-lattice damping material and a method for repeatable energy absorption. The micro-lattice damping material is a cellular material formed of a three-dimensional interconnected network of hollow tubes. This material is operable to provide high damping, specifically acoustic, vibration or shock damping, by utilizing the energy absorption mechanism of hollow tube buckling, which is rendered repeatable by the micro-lattice architecture.