In this paper, wire electrical discharge machining of D3 tool steel is studied. Influence of pulse-on time, pulse-off time, peak current and wire speed are investigated for MRR, dimensional deviation, gap current and machining time, during intricate machining of D3 tool steel. Taguchi method is used for single characteristics optimization and to optimize all four process parameters simultaneous...

the emergence of multi-drug resistant strains of pseudomonas aeruginosa has complicated treatment decision and may lead to treatment failures. in this study, we describe the trends of drug-resistant p. aeruginosa isolated in blood cultures from patients detected in a tertiary teaching hospital and evaluated the prevalence of resistance to amikacin, ampicillin, carbeni- cillin, cefixime, cefotax...

estimation of parameters of a hydrologic model is undertaken using a procedure called “calibration” in order to obtain predictions as close as possible to observed values. this study aimed to use the particle swarm optimization (pso) algorithm for automatic calibration of the hec-hms hydrologic model, which includes a library of different event-based models for simulating the rainfall-runoff pr...

In a wireless multi-hop network, one of the important challenges is how to route packets efficiently. The availability of many intermediate nodes between a source and a destination results in having many optional paths/routes to follow. The challenge is to pick an optimal path that satisfies the needed performance requirements-this is the responsibility of the routing protocol. There are four w...

The activities of the QCD working group concentrated on improving the understanding and Monte Carlo simulation of multi-jet final states due to hard QCD processes at LEP, i.e. quark-antiquark plus multi-gluon and/or secondary quark production, with particular emphasis on four-jet final states and b-quark mass effects. Specific topics covered are: relevant developments in the main event generato...

In a critical review (Thomas and Baker, 2012), we argued for caution in evaluating reports of training-dependent adult structural plasticity measured with MRI. Here, we respond to the commentaries on our review, clarifying our position and addressing some of the specific criticisms raised.

During the liulf year ending January 31, 1911, there have been two groups of boys in a special class in Girard College, one group known as the "Retarded Class," the other as the "Delinquent Class." There were twenty-four boys in the Retarded Class and twenty-eight in the Delinquent Class. Retarded boys are those who have remained unduly long in a grade without promotion, the repeating having be...