Abstract: A switchable device for closed suction catheters includes a device body and a two-way switch valve. The device body is formed with a valve sleeve, a patient tubing adaptor, a side port, and a catheter adaptor. The valve sleeve is formed with a cavity therein to allow the two-way switch valve to correspondingly rotate with respect to the device body. The catheter adaptor and the patient tubing adaptor are formed on opposing ends of the valve sleeve, thereby able to establish an unobstructed path therebetween. The side port is slantingly formed and extended from the patient tubing adaptor for smooth passage of flow therebetween. A groove is formed on one end of the patient tubing adaptor as a 360-degree freely rotatable coupling element thereof.

Abstract: A server system and a server thereof are provided. The server system includes a rack, a server, and a fan module, wherein the server and the fan module are located in the rack. The server includes a chassis, a circuit board, a first heat source, a second heat source, a liquid cooling device, and a shielding cover. The circuit board is disposed on the chassis, and the first heat source and the second heat source are disposed on the circuit board. The liquid cooling device is thermally connected to the second heat source covered by the shielding cover. When the fan module is in operation, outside air is taken into the server by the fan module. The flow rate of an air flow passing by the first heat source is greater than that of another air flow passing by the second heat source capped by the shielding cover.

Abstract: A bandwidth selection method includes capturing at least one first quality information corresponding to a first bandwidth, computing at least one first threshold value according to the at least one first quality information and at least one first weighting index, capturing at least one second quality information corresponding to a second bandwidth, comparing the first threshold value with the second quality information to obtain a first comparison result, and selecting one of the first bandwidth and the second bandwidth as a used bandwidth of a filter according to the first comparison result.

Abstract: A channel selection method includes steps of generating a plurality of test carriers on a plurality of different candidate channels, respectively; obtaining a plurality of channel quality information corresponding to the plurality of test carriers, respectively; generating a test result according to the plurality of channel quality information; and selecting a target channel from the plurality of candidate channels according to the test result.

Abstract: An enclosing shift control device for a bicycle transmission is set up by an enclosing casing enclosing a bicycle handle. Through the enclosing shift control device, a rider only turns an operating casing to shift bicycle transmissions from one gear ratio to another.

Abstract: A shift control machine for a bicycle transmission is set up by an enclosing casing enclosing a bicycle handle. Through the enclosing shift control device, a rider only turns an operating casing to shift bicycle transmissions from one gear ratio to another.

Abstract: A power adjusting apparatus communicating with a remote terminal is provided. The apparatus includes: a transceiving unit transmitting a plurality of test packets by a plurality of powers; a processing unit coupled to the transceiving unit, and deciding a transmission power for transmitting a subsequent packet according to at least one retransmission number of transmitting the test packets.