Abstract: A method of preparing tunable inorganic patterned nanofeatures by infiltration of a block copolymer scaffold having a plurality of self-assembled periodic polymer microdomains. The method may be used sequential infiltration synthesis (SIS), related to atomic layer deposition (ALD). The method includes selecting a metal precursor that is configured to selectively react with the copolymer unit defining the microdomain but is substantially non-reactive with another polymer unit of the copolymer. A tunable inorganic features is selectively formed on the microdomain to form a hybrid organic/inorganic composite material of the metal precursor and a co-reactant. The organic component may be optionally removed to obtain an inorganic feature s with patterned nanostructures defined by the configuration of the microdomain.

Abstract: The invention provides an improved structure of a string of surface-contacted flasher type lamps. Each flasher type lamp has a closed cover, and inside the cover, there are two conducting lines. Each conducting line has an inner end point and a concave portion, and the inner end points of the conducting lines are located inside the cover, whereas the other ends of the conducting lines penetrate through the cover to the outside. A heat-resistant fuse is connected between the inner end points of the conducting lines, while a fuse is connected between the concave portions of the conducting lines. A core ball with diamond-shape surfaces is located under the fuse wrapping the two conducting lines. Each of the compound metal heat leaning slices is welded to one of the conducting lines in a position between the inner end point and the concave portion of the conducting line.