Abstract: Disclosed is a sound producing device, including a magnetic circuit system and a vibration system. The magnetic circuit system includes a primary magnet steel and a secondary magnet steel with a magnetic gap therebetween, wherein the secondary magnet steel includes a body portion and a protruding portion protruding in a direction toward the primary magnet steel from the body portion, and wherein the primary magnet steel has a primary magnetic conductive plate disposed thereon. The vibration system includes a diaphragm and an voice coil wound by wire, wherein the voice coil is inserted in the magnetic gap to drive the diaphragm to vibrate, and wherein a number of layers of wire winding at an end of the voice coil away from the diaphragm are less than that of layers of wire winding at another end of the voice coil contacting with the diaphragm, to form a notch.

Abstract: The present disclosure relates to the field of genetic engineering, in particular to a recombinant human 2Ig-B7-H3 protein encoding gene, a protein, a recombinant vector, and a pharmaceutical composition including the gene or protein. The recombinant human 2Ig-B7-H3 protein encoding gene comprises a nucleotide sequence shown in SEQ ID NO:1.

Abstract: An automatic coffee pot helical launch structure includes a base body and motor installed in the base body, a concave-upward chamber, in which an inner turntable gear and an outer turntable gear are disposed, installed on the bottom surface of the base body, an outlet being installed through the inner turntable gear axially a center gear extending downward from the middle of the top wall of the base body's chamber, the center gear meshes with inner turntable gear, which sleeves inside the eccentric hole of the outer turntable gear and rotates around the shaft, a water inlet through the base body installed in the center gear axially, wherein the motor drives the outer turntable gear through the motor gear, and wherein the inner turntable gear whose upper surface is concave-downward is arranged below the water inlet.

Abstract: Electrical components may be mounted on a printed circuit or other substrate. The electrical components may be covered with a conformal coating containing a wavelength-tuned-light-absorption-enhancement additive. The additive may be a dye or other additive that creates a light absorption peak at a given wavelength. To form openings in the conformal coating in alignment with the electrical components without damaging the components, a laser ablation tool may apply laser light at the given wavelength to the conformal coating. Openings may also be formed by placing tape over the components before the con form at coating is applied. The tape may have a color with a light absorption peak at the given wavelength to facilitate the formation of openings without damaging sensitive components.

Abstract: Electrical components may be mounted on a printed circuit or other substrate. The electrical components may be covered with a conformal coating containing a wavelength-tuned-light-absorption-enhancement additive. The additive may be a dye or other additive that creates a light absorption peak at a given wavelength. To form openings in the conformal coating in alignment with the electrical components without damaging the components, a laser ablation tool may apply laser light at the given wavelength to the conformal coating. Openings may also be formed by placing tape over the components before the con form at coating is applied. The tape may have a color with a light absorption peak at the given wavelength to facilitate the formation of openings without damaging sensitive components.