The back burner

Get off the back burner!

A 65-year-old male presented with chronic mechanical back pain and a 6-month history of a discrete, hyperpig-mented reticular rash on his lower back. On further questioning, the patient admitted to daily use of an electric heating pad over the distribution of the rash (Figure 1). The diagnosis was erythema ab igne (EAI). Historically, EAI has been associated with repeated and prolonged exposure...

Inner city medicine: off the back burner.

Fixpoint Computation: Leaking Gas Burner

Real-time distributed system speciication and veriication in asynchronous propositional temporal logic. Let A be the integrator system deened in Figure 5. We use the xpoint computation procedure to prove that the formula y 60 ! 20t y is an invariant of A. It follows that the gas burner leaks at most one twentieth of the time in any interval of at least 60 seconds. Let R i = hpc = 1 ^ t = 0 ^ x ...

Experimental and numerical investigations in the near-burner region of a versatile multi-fuel burner

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...

Simulation of Cup-Burner Flames in Microgravity

The extinction process of cup-burner flames under normal-gravity conditions were previously studied. As the low-speed diffusion flames behave differently in microgravity compared to those on earth, it is important to understand the structure of cup-burner flame and its extinction characteristics under 0g conditions. A numerical study was performed in the present paper using a time-dependent, ax...