Abstract: The present disclosure provides a keycap and a keyboard apparatus. The keyboard apparatus includes a base plate, a plurality of lifting mechanisms mounted to the base plate, and a plurality of keycaps. The keycaps are correspondingly mounted to the lifting mechanisms and are movable up and down relative to the base plate to form a pressing stroke. Each of the keycaps comprises a pressing surface, an assembly surface opposite to the pressing surface, and a plurality of connectors. The connectors are disposed on the assembly surface to be connected to the lifting mechanism, wherein a jig engagement portion protrudes from one side of at least one of the connectors; when the keycap is to be painted, the keycap is removably fixed to a painting jig by the jig engagement portion.

Abstract: Disclosed are two myocardial peptides, whose amino acid sequences are Trp-Ser-Asn-Val-Leu-Arg-Gly-Met-Gly-Gly-Ala-Phe and Lys-Gly-Ala-Trp-Ser-Asn-Val-Leu-Arg-Gly-Met-Gly-Gly-Ala-Phe respectively, wherein the latter can be obtained by extracting from myocardial peptides solution. The myocardial peptides can be used in the produce of a medicament for preventing and/or treating myocardial ischemia.

Abstract: An electronic device includes a processor to execute an interface module to cause an interface to be displayed on a touch sensitive display. The interface includes a slide button, a path, and a character panel. The slide button is slidable along the path, and the character panel includes a number of characters. The processor is used to determine a position of the slide button where a sliding direction of the slide button changes from a first direction to a second direction opposite the first direction, and further used to determine one of the characters corresponding to the position and select the one of the characters.

Abstract: An electronic device includes a housing defining a battery compartment to receive a battery including many conductive terminals and a first engaging portion. Two sets of contacts are respectively mounted in the battery compartment at opposite ends, and each set of contacts is used to contact the terminals of the battery. Two second engaging portions are respectively mounted in the battery compartment at opposite ends, and each second engaging portion is rotatable in the battery compartment. Each second engaging portion is used to engage the first engaging portion of the battery to rotatably connect the battery to the housing, and the terminals of the battery stay in contact with one of the two sets of contacts during a rotation of the battery.

Abstract: A card connector includes a housing defining a receiving space with an entrance, an ejection member, a resilient member received in the receiving space, and a latching member slidable to the housing. The ejection member includes an ejection portion slidable in the receiving space and an engaging portion comprising an engaging surface. The resilient member applies a push force to the ejection member to move the ejection member toward the entrance. The latching member includes a latching portion comprising a latching surface. When the electrical card is inserted into the receiving space, the electrical card drives the latching member to slide to a first position where latching surface lockingly engages with the engaging surface. When the electrical card is further pushed into the receiving space, the electrical card drives the latching member to slide to a second position where the latching surface disengages from the engaging surface.

Abstract: A dustproof axial-flow fan device includes an axial-flow fan and a mount body. The axial-flow fan has a frame body and a fan propeller rotatably mounted in the frame body. The mount body has an inlet and an outlet. At least one shutter slat is disposed at the inlet. A filter mesh is disposed at the outlet. An opening is formed at a bottom of the mount body. When the fan propeller forward rotates, air flows from the inlet into the mount body and filters through the filter mesh to flow out of the outlet. When the fan propeller reversely rotates, the shutter slat is closed to block the inlet. In this case, the air flows from the outlet into the mount body to blow off the dust from the filter mesh. The shutter slat will stop and make the dust drop out from the opening to remove the dust.

Abstract: A dustproof axial-flow fan device includes an axial-flow fan and a mount body. The axial-flow fan has a frame body and a fan propeller rotatably mounted in the frame body. The mount body has an inlet and an outlet. At least one shutter slat is disposed at the inlet. A filter mesh is disposed at the outlet. An opening is formed at a bottom of the mount body. When the fan propeller forward rotates, air flows from the inlet into the mount body and filters through the filter mesh to flow out of the outlet. When the fan propeller reversely rotates, the shutter slat is closed to block the inlet. In this case, the air flows from the outlet into the mount body to blow off the dust from the filter mesh. The shutter slat will stop and make the dust drop out from the opening to remove the dust.

Abstract: Disclosed are two myocardial peptides, whose amino acid sequences are Trp-Ser-Asn-Val-Leu-Arg-Gly-Met-Gly-Gly-Ala-Phe and Lys-Gly-Ala-Trp-Ser-Asn-Val-Leu-Arg-Gly-Met-Gly-Gly-Ala-Phe respectively, wherein the latter can be obtained by extracting from myocardial peptides solution. The myocardial peptides can be used in the produce of a medicament for preventing and/or treating myocardial ischemia.