contamination of water by heavy metals is a global problem. nowadays everybody knows that heavy metal ions consist of iron, lead, manganese, zinc, copper, cadmium, and nickel and so on they are common contaminants in wastewater and known to be toxic and carcinogenic that lead to many problems for human and water environment. in this research, experiments have been performed in the batch system ...

Summary We present a new method for causal discovery in linear structural equation models. propose simple technique based on statistical testing models that can distinguish between ancestors and non-ancestors of any given variable. Naturally, this approach then be extended to estimating the order among all variables. provide explicit error control false discovery, at least asymptotically. This ...