background and aims: chromium is considered as one of the important environmental pollutants. there is high concentration of chromium in the wastewater of electroplating industries. magnetic iron nanoparticles are used to control and eliminate heavy metals from industrial effluents through the mechanisms of adsorption, ion exchange and electro-static forces. the aim of this study was to evaluat...

Disfluency, such as pause (silences), filled pause (e.g., ‘um’, ‘uh’), repetition (e.g., ‘the the’) and cutoff word (e.g., ‘hori[zontal]-’), is a common part of human speech that occurs at a rate of 6 to 10 per 100 words [2, 5]. According to one model of speech production [8], there are two types of disfluency: disfluency at the internal planning stage (e.g., wordretrieval difficulties), and di...

This work shows the results obtained with the combined application of simulating annealing (SA) and genetic algorithms (GA) in the generation of inputs pairs that cause the maximum number of switching gates in combinational circuits. We found that a combination of SA and GA produces better results than those obtained using only one of them.

|It is diicult to deene and evaluate a meaningful performance metric when many packets are generated and exchanged concurrently in mesh-connected multicomputers equipped with wormhole switching and virtual channels. Thus, an approximate metric/cost function must be chosen so that when task modules are mapped by optimizing this function, the actual performance of the mapping is also optimized. S...

Methods We evaluated mothers of food-allergic children participating in a UK study of epinephrine auto-injectors (EAI), 1 year after they were first trained to use an EAI, either Anapen or Epipen (old design). Participants’ ability to deliver epinephrine using their device was assessed using a simulated anaphylaxis scenario. Participants then underwent repeat assessment using a different EAI de...

Ion-conducting memristors comprised of the layered chalcogenide materials Ge2Se3/SnSe/Ag are described. The memristor, termed a self-directed channel (SDC) device, can be classified as a generic memristor and can tolerate continuous high temperature operation (at least 150 °C). Unlike other chalcogenide-based ion conducting device types, the SDC device does not require complicated fabrication s...