Abstract: An annular airflow regulating apparatus includes a cup-shaped element and an adjustment element. The cup-shaped element has a bowl and a bottom, integrated to form a first chamber. The bottom has a tapered channel parallel to an axis and penetrating through the bottom. A ring-shaped groove is disposed between the tapered channel and the bottom. The ring-shaped groove has an annular plane perpendicular to the axis. The adjustment element, having a tapered portion and second holes, is movably disposed in the cup-shaped element. The tapered portion protrudes into the tapered channel A tapered annular gap is formed between the tapered portion and the tapered channel. When the adjustment element is moved with respect to the cup-shaped element, a width of the tapered annular gap is varied, and thereupon a flow rate and velocity of the process gas would be varied accordingly.

Abstract: The present invention relates to a pharmaceutical composition comprising a weak acid drug, with the use of a bicarbonate salt to achieve a high incorporation of the drug into the liposome and a better therapeutic efficacy. Also disclosed is a method for treating a respiratory disease using the pharmaceutical composition disclosed herein.

Abstract: A fan includes a frame, a stator, a rotor and a magnetic member. The frame comprises a base. The stator is connected to the frame. The rotor has a shaft. The magnetic member, corresponding to the shaft, is disposed on the base to attract the shaft. The magnetic member and the shaft are spaced apart with the base disposed therebetween. The magnetic member may be disposed outside or inside the frame or on the stator.

Abstract: A fan. The fan comprises a frame, a stator, a rotor and a magnetic member. The stator is connected to the frame. The rotor has a shaft. The magnetic member, attracting the shaft, is disposed corresponding to the shaft without making contact therewith. The magnetic member may be disposed outside or inside the frame or on the stator.