Abstract: An engine and a double-swirl mixing device thereof are provided. The double-swirl mixing device includes a mixing tube configured to mix exhaust gas with urea, a tapered mixer including a tapered tube having an outlet end extending into the mixing tube, and a plurality of tapered swirl plates which are arranged along a circumferential direction on a side wall of the tapered tube, and a fan-type blade arranged at the outlet end of the tapered tube, and a diameter of an inlet end of the tapered tube is smaller than a diameter of the outlet end of the tapered tube.

Abstract: An engine and a double-swirl mixing device thereof are provided. The double-swirl mixing device includes a mixing tube configured to mix exhaust gas with urea, a tapered mixer including a tapered tube having an outlet end extending into the mixing tube, and a plurality of tapered swirl plates which are arranged along a circumferential direction on a side wall of the tapered tube, and a fan-type blade arranged at the outlet end of the tapered tube, and a diameter of an inlet end of the tapered tube is smaller than a diameter of the outlet end of the tapered tube.

Abstract: The invention relates to a perfume composition that includes a first perfume microcapsule encapsulating a first perfume oil that has a LogT greater than ?2.5 and a cLogP greater than 2.5 and/or a volatility value of at least 30 ?g/l air; and a second perfume microcapsule encapsulating a second perfume oil ingredient that has a LogT less than ?2.5 and a cLogP greater than 2.5 and/or a volatility value of at least 30 ?g/l air. The invention also relates to the use of such mixtures of microcapsules as a perfuming ingredient or perfuming composition for home or personal care products, as well as to the resulting home and body care compositions. Also, a method for increasing shelf life of a home- or personal-care product that contains a perfuming composition which comprises providing the perfume composition as one of the mixtures of microcapsules disclosed herein.

Abstract: The invention relates to a perfume composition that includes a first perfume microcapsule encapsulating a first perfume oil that has a Log T greater than ?2.5 and a cLogP greater than 2.5 and/or a volatility value of at least 30 ?g/l air; and a second perfume microcapsule encapsulating a second perfume oil ingredient that has a LogT less than ?2.5 and a cLogP greater than 2.5 and/or a volatility value of at least 30 ?g/l air. The invention also relates to the use of such mixtures of microcapsules as a perfuming ingredient or perfuming composition for home or personal care products, as well as to the resulting home and body care compositions. Also, a method for increasing shelf life of a home- or personal-care product that contains a perfuming composition which comprises providing the perfume composition as one of the mixtures of microcapsules disclosed herein.

Abstract: This invention provides compounds having the following general structure: This invention also provides pharmaceutical compositions comprising same and methods of using these compositions to treat and prevent disorders characterized by neuronal damage.