Ion mobility spectrometry (IMS) has been widely used for the on-site detection of trace chemicals, but continue to suffer from a low duty cycle ion injection. The Hadamard transform (HT-IMS) technique was employed address problem with increased signal-to-noise ratio (SNR). However, in this work, through simulation, certain deviation between mathematical principle and actual data collection proc...

Buckling restrained braces (BRBs) have a similar behavior under compression and tension loadings. Therefore, they can be applied as a favorable lateral load resisting system for structures. In the performance-based earthquake engineering (PBEE) framework, an intermediate variable called intensity measure (IM) links the seismic hazard analysis with the structural response analyses. An optimal IM...

صخلملا Seasonal variation of zooplankton biomass has been carried out at two selected sites on Greater Zab River. Monthly samples of water were collected during period from January to December 2008. Some physico-chemical properties of water were studied including water temperature (from 8 to 30.5 C), hydrogen ion concentration (from 6.3 to 8), EC (from 255 to 821 μs.cm), turbidity (1085 NTU), d...

background and objectives: the significant rise in food borne infections is mainly caused by campylobacter spp., salmonella serovars and verotoxigenic escherichia coli . as the emerging food borne pathogens cause disease, more studies have been conducted for rapid detection of these pathogens. the combination of immunomagnetic separation and polymerase chain reaction (ims-pcr) is the most accur...