The article presents studies related to the reduction of stress concentration acting on prismatic specimen subject axial loading. Using ANSYS software, a topological optimization was performed which aims reduce stresses in endangered areas. aim identification geometric parameters accomplished after completion objective function is minimize engaged An analysis were show influence fatigue limit d...

generally, fatigue failure in an element happens at the notch on a surface where the stress level rises because of the stress concentration effect. the present paper investigates the effect of a notch on the fatigue life of the hsla100 (­high strength low alloy) steel which is widely applicable in the marine industry. tensile test was conducted on specimens and mechanical properties were obtain...

we used wild boars and roe deer as biomonitors of lead (pb), cadmium (cd), and mercury (hg)contamination in two major industrial sites in poland with different levels of toxic metal pollution. masurianlakes district, located far away from industry, was used as the reference site. levels of pb, cd, and hg in liver,kidney and muscle samples and in the stomach content of the animals were determine...

BACKGROUND Psychological stress is an important factor of acne pathogenesis. Stress related production of hormones, cytokines and neuropeptides may result in the chronic course and exacerbations of the disease. OBJECTIVE The aim of the study was to evaluate the relationship between acne severity, intensity of emotional stress and serum concentration of substance P (scSP), to compare the inten...