Stem analysis data defines a range of possible heights for each age. A smooth stem/age curve is obtained with linear programming (LP) when the sum of the absolute second differences of heights is minimized subject to constraints obtained from the stem analysis. The method is analogous to cubic splines. A LP problem can include additional constraints that are based on the assumption that the cro...

The concept of a CpG island methylator phenotype, or CIMP, quickly became the focus of several colorectal cancer studies describing its clinical and pathological features after its introduction in 1999 by Toyota and colleagues. Further characterization of CIMP in tumors lead to widespread acceptance of the concept, as expressed by Shen and Issa in their 2005 editorial, "CIMP, at last." Since th...

The recovery of phosphorus from sewage sludge ash samples obtained from 7 operating sludge incinerators in the UK using a sulfuric acid washing procedure to produce a technical grade phosphoric acid product has been investigated. The influences of reaction time, sulfuric acid concentration, liquid to solid ratio and source of ISSA on P recovery have been examined. The optimised conditions were ...

Supervisory Dr. Tao Lu, Department of Electrical and Computer Engineering Supervisor Dr. Issa Traore, Department of Electrical and Computer Engineering Departmental Member The security of industrial network has become an increasing concern in industry infrastructure operation. Motivated by on-going collaborations with Fortinet Corp., a security company, this project implements a testbed for sup...

Reasonable optimal operation policy for complex multiple reservoir systems is very important the safe and efficient utilization of water resources. The hydropower reservoirs should be optimized to maximize total generation, while ensuring flood control safety by effective storage release reservoirs. To achieve this goal, a new meta-heuristic algorithm, salp swarm algorithm (SSA), used optimize ...

Commercial and open-source CFD solvers rely mostly on incompressible approximate projection methods to overcome the pressure-velocity decoupling, such as SIMPLE (Patankar, 1980) or PISO (Issa, 1986) algorithm. Incompressible based Artificial Compressibility method (Chorin, 1967) lack a mechanism evolve in time need be supplemented by real derivative through dual scheme. The current study invest...