Abstract: A server cabinet includes a rack and a server unit installed in the rack. The server unit includes a receiving portion extending rearward from a rear wall of the server unit adjacent to a sidewall of the server unit, a motherboard with a first connector, and a cable with a second connector. The motherboard is received in the server unit. The first connector is received in the receiving portion. The receiving portion defines a through hole adjacent to the sidewall. The second connector of the cable extends through the through hole, to be connected to the first connector of the motherboard.

Abstract: An alarm system for alarming whenever there is a power leakage from an electronic device, includes a voltage decreasing circuit, a switch circuit and an alarm circuit. The voltage decreasing circuit receives a first voltage from a live wire output terminal and outputs a second voltage. The switch circuit outputs a control signal when the power leakage is detected. The switch circuit is electrically connected to a connection port. The connection port is electrically connected to the live wire output terminal and a neutral wire output terminal. The alarm circuit receives the control signal and alarms. If there is power leakage from the electronic device, the first voltage from the live wire input terminal flows into the ground wire input terminal via the electronic device; the switch circuit turns on and the alarm circuit is closed to alarm.

Abstract: A lock includes a housing, a cover, a lock cylinder holder, a lock cylinder, a cam, a resisting shaft, at least one latching block, and at least one first elastic member. The cover is secured to one end of the housing. A gap is formed between the cover and the housing. The lock cylinder holder is secured to the housing. The lock cylinder is rotatably mounted in the lock cylinder holder. The cam is received in the housing and secured to the lock cylinder. The resisting shaft is rotatably mounted in the housing and includes a frustum shaped end. The latching block is received in the gap. The latching block includes an inclined surface corresponding to the frustum shaped end. The first elastic member is configured to connect the latching block to the cover or the housing. An electronic device using the lock is also provided.

Abstract: A method for manufacturing a one-dimensional nano-structure-based device comprises the steps of: Step (1), preparing a solution (14) containing one-dimensional nano-structures (15); Step (2), providing a pair of electrical conductors (10, 12), the electrical conductors having respective tips (101, 121) arranged to be spaced apart from and opposite to each other; Step (3), applying at least a drop of the solution to the tips of the electrical conductors thereby the tips being interconnected by the solution; Step (4), applying a voltage (16) between the tips thereby at least one one-dimensional nano-structure being connected with at least one of the tips of the electrical conductors; and Step (5), removing the liquid solvent of the solution.