Mechanical and ablation properties of the 2D C/C-ZrB2-ZrC-SiC composites with a fiber volume fraction of 17.6%, fabricated by infiltration and co-pyrolysis of blended polymeric precursors, were studied in this Part II. Flexural strength and fracture toughness of the composites were found to be influenced strongly by the thickness of the deposited pyrolytic carbon interphase, a composite with th...

INTRODUCTION The frequency of fetopathogenic viruses and Toxoplasma gondii infections in the TORCH group (Toxoplasma gondii, rubella virus, cytomegalovirus (CMV), herpes simplex virus) together with Parvovirus B19 (B19) in pregnant women with bad obstetric history (BOH) and/or concurrent pregnancy complications was investigated. METHODOLOGY Sixty women (20-35 years) with BOH and/or antecedent...

Due to their excellent mechanical and biocompatibility characteristics, CoCr-based alloys are frequently employed in orthopaedic implant applications. It is necessary maximize general corrosion resistance, ion release. Despite several benefits, coating with torch flame spray has weaker adherence. As a result, powder metallurgy was combine Si Nb elements CoCr alloys. CoCrNb CoCrSi were sprayed m...

The authors have investigated the structure of cutting seams obtained after steel 09G2S with a new narrow-jet plasma torch PMVR-5.3 type which has number design features in gas dynamic stabilization system (GDS) arc. To increase efficiency GDS torch, symmetrical input plasma-forming (PFG) into flow division and gas-dynamic stabilizer using two (forming stabilizing) swirlers variable swirl chann...

Abstract The growth in the number and types of cloud-based services offered to IT customers is supported by constant entry new actors market consolidation disruptive technologies such as AI, Big Data Micro-services. From customer’s perspective, a landscape where cloud offer highly diversified due presence multiple competing service providers, picking that best accommodate their specific needs c...