Formability of Tailor Welded Blank (TWB) is an important parameter which limits this kind of blanks usage. A forming criterion for tailor welded blank is presented based on the analytical model in this research. This criterion suggests Limit Strength Ratio (LSR) and Limit Thickness Ratio (LTR) for forming limit of TWB. When thickness ratio or strength ratio in tailor welded blank is greater tha...

We present high resolution optical spectroscopy of three candidate members of the Taurus-Auriga star forming region. Based on the spectral type, the strength, profile and width of the Hα line, the detected lithium at 6708 Å, the location of these objects in a H-R diagram and the comparison with similar objects belonging to young stellar associations, we determine that they are bona fide members...

Sheet-metal forming is one of the most important manufacturing processes in automotive industry. This study proposes a multiobjective optimisation scheme that controls both sheet-metal formability and springback. First, mechanical properties DP590 steel were characterised to obtain parameters limit diagram (FLD) DP590. Then, FLD, thinning rate, average springback selected as quality evaluation ...

In the present work focus devoted to results obtained from uniaxial tensile test were utilized analyze flow stress behavior of brass under different orientation, temperature and strain rate conditions study forming limit diagrams for stretch sheet material at room various elevated temperatures have been estimated experimentally by performing operations using warm tooling setup (i.e., suitable p...

In this study, Buckling Limit of Strain (B.L.S.) is introduced as one of the most important limiting factors in cold roll forming process. B.L.S. is calculated by the finite element procedure. Then for two particular processes with existing analysis and experimental results, B.L.S. has been determined and evaluated. LUSAS 12.3 is used for finite element analysis. The results show that when buck...

Bacterial detection plays an important role in protecting public health and safety, and thus, substantial research efforts have been directed at developing bacterial sensing methods that are sensitive, specific, inexpensive, and easy to use. We have recently reported a novel "mix-and-read" assay where a fluorogenic DNAzyme probe was used to detect model bacterium E. coli. In this work, we carri...

Aims. We study the spectral classification of emission-line galaxies as star-forming galaxies or Active Galactic Nuclei (AGNs). From the Sloan Digital Sky Survey (SDSS) high quality data, we define an improved classification to be used for high redshift galaxies Methods. We classify emission-line galaxies of the SDSS according to the latest standard recipe using [OIII]λ5007, [NII]λ6584, [SII]λ6...