Assessment Cost Estimation for Component Based Software: A Tool Based Technique

Assessment cost of the software component contributes a major part in software cost estimation and it is one of the major cost of the software out of- integration cost i.e. the cost of glue codes, assessment costs and tailoring cost. Many researchers have proposed formulas for evaluating assessment and tailoring costs theoretically. Assessment cost is very often considered to be theoretical cost which involves cost of component selection and composition. According to Moguel Goulao et. al assessment cost for overall component can be measured qualitatively and quantitatively both. He has suggested that qualitative measurement is mostly based on views provided by the experts whereas the quantitative measurement is more subjective and repetitive in nature. Various metrics has been suggested by different authors to quantitatively measure the assessment cost for software components. In this work we applying the metrics on case study of UCRS and developed a tool for evaluating the assessment cost which can be used in calculating the overall cost of the software.</jats:p

NEUROPHYSIOLOGICAL AND BEHAVIOURAL PERTURBATIONS IN Caenorhabditis elegans EXPOSED TO ORGANOPHOSPHATE PESTICIDES

The ubiquitous use of pesticides all over the world leads to adverse effects on both targets as well as non-target species. The extensive and uncontrolled use of organophosphates (OPs), a large group of pesticidal compounds in agricultural and household products are resulting in high exposure to humans. This research has been carried out to study the adverse effect of OPs i.e., chlorpyrifos, trichlorfon, and disulfoton on model organism Caenorhabditis elegans to evaluate their behavioural as well as developmental toxicity at different time intervals i.e., 4, 24, 48, and 72 hours (hrs) of exposure. A significant difference was observed in all the behavioural endpoints like locomotion, egg-laying, offspring count, and learning along with developmental parameters like mortality, paralysis, and growth rendering from moderate to high toxic effects. Based on the above screening, trichlorfon resulted in glutamatergic and cholinergic neurodegeneration along with elevated autofluorescence. Loss in Yellow fluorescent Protein (YFP) and Green Fluorescent Protein (GFP) was recorded by 57.96% and 30.52% using transgenic strains OH11124 (otIs388 [eat-4(fosmid)::SL2::YFP::H2B + (pBX)pha-1(+)] III) and OH13083 (otIs576 [unc-17(fosmid)::GFP + lin-44::YFP]). These results have shown the biological potency of toxicants in C. elegans and pave the way forward to provide insight into various neurogenerative diseases in humans.</jats:p

Elasto-Visco behavior of Al7075-T6 using a numerical technique

Abstract The transition in temperature and associated stress induced during machining, may affect the structural integrity of the Al7075-T6 alloy. In the present study, Steinberg Guinan material parameters were used to investigate the dynamic behaviour viz chip morphology (fracture mechanism), temperature change and flow stress in the elasto-visco material Al7075-T6. An explicit algorithm, was adopted to investigate the outcomes. Results showed chip formation and the mode of fracture was closely related with depth of cut and can influence the temperature and flow stress during the machining process. Work hardening and edge dislocation slip in the secondary shear zone was observed to have a notable influence. An optimal machining condition was found between 0.6 and 0.7 mm depth of cut.</jats:p