An experimental and numerical investigation on the effect of swirl on the motion of coal particles in the near-burner region of a versatile multi-fuel swirl-stabilised laboratory burner of total thermal input of 100kW, has been performed. The burner was designed as a scale model of a lOMW coal burner operating in a cement rotary kiln, produces flames of different aerodynamic characteristics, an...

FlashTM is undergoing an explosive growth and has become a prevailing media format on the Web. Unfortunately, no research effort has been dedicated to the retrieval of Flash movies based on content, which is essential to the utilization of the enormous Flash resource. In this paper, we conduct a close investigation of Flash movies and reveal that a typical movie is semantically characterized by...

◦ Regular documentation of both open and covert trade; ◦ A shift in focus in some diminishing traditional hunts to other marine mammal species; ◦ A possible revival in some targeted hunts, which had previously ceased; ◦ The recent implication of some cultures, which have little history of marine mammal consumption previously, in targeted hunts; and ◦ The growing importation of marine mammal par...

Wildfires contribute significantly to global soot emissions, yet their aerosol formation mechanisms and resulting particle properties are poorly understood and parameterized in climate models. The conventional view holds that soot is formed via the cluster-dilute aggregation mechanism in wildfires and emitted as aggregates with fractal dimension Df ≈ 1.8 mobility diameter Dm ≤ 1 μm, and aerodyn...

Numerous bene®ts, including increases in ef®ciency, effectiveness, and participant satisfaction, have been noted in the literature when electronic meetings are used in place of traditional, oral meetings. However, several costs, or process losses, have also been observed, including an increase in ` ̄aming' characterized by insults or even obscenities. This paper describes how ̄aming may be corre...