Abstract: A dynamic random access memory (DRAM) device is provided. The DRAM device includes a circuit substrate, a light emitting element, a first light-permeable thermal dissipation element, and a first light blocking element. At least one DRAM chip is disposed on the circuit substrate. The light emitting element is disposed on the circuit substrate and coupled to the circuit substrate. The first light-permeable thermal dissipation element is disposed on the circuit substrate. The first light blocking element is disposed between the first light-permeable thermal dissipation element and the circuit substrate, and the first light blocking element is disposed on the first light-permeable thermal dissipation element.

Abstract: A dynamic random access memory (DRAM) device is provided. The DRAM device includes a circuit substrate, a light emitting element, a first light-permeable thermal dissipation element, and a first light blocking element. At least one DRAM chip is disposed on the circuit substrate. The light emitting element is disposed on the circuit substrate and coupled to the circuit substrate. The first light-permeable thermal dissipation element is disposed on the circuit substrate. The first light blocking element is disposed between the first light-permeable thermal dissipation element and the circuit substrate, and the first light blocking element is disposed on the first light-permeable thermal dissipation element.

Abstract: The invention relates to a horizontal tail of a catapult launched glider which can change angles during flight.

Abstract: The invention is related to a swimming teaching apparatus which provides user to make a complete swimming like action on land. The special technical features are a body rotation mechanism, arms guide, a breathing sink and a kick pad for legs, all together to perform on land swimming exercise. All strokes can be skilled with a precise instruction by the coach when the user is stationary on the invention. The invention allows user to do continuous practice of the swimming movements without be interrupted by a breathing problem, when the arms and legs are well coordinated, breathing sink then add to exercise, user can do combined actions slowly to ensure the correctness. The invention is tried to substitute the buoyancy of water as a pre-training machine for those schools which have no swimming pools can still carry out swimming courses for their students to reduce drowning incidents.

Abstract: A method for forming a tubular member includes preparing a longitudinal Teflon strap, winding the Teflon strap around a longitudinal core to form a tubular prototype having two or more layers, and welding the two or more layers of the Teflon strap together to form the tubular member. The layers of the Teflon strap are preferably arranged at different angles or inclined relative to each other, or arranged at different angles with respect to the longitudinal axis of the core or of the elongate tubular member. The tubular member may further be shaped to various shapes or configurations with such as extending, stretching, expanding, enlarging, or shaping process.

Abstract: A toy glider includes: a fuselage, a telescopic nose member telescopically secured in a front portion of the fuselage for adjusting a gravity center of the glider in order to adjust a flying path such as a curvature radius when arcuately launched, and a self-biasing elevator attached to a tail portion of the fuselage for an automatic upward swinging of the elevator for automatically converting a horizontal flying to an upwardly climbing, thereby enabling an adjustment of a flying path of the glider for enriching a player's interest.