Tribological wear mechanisms of molds for high pressure die casting

The goal of this article is to analyze and define mold wear in relation to: mold material, casting alloy and casting parameters. These are the main elements for design of the experimental laboratory for die casting equipment. Additionally, preliminary tests have been undertaken to ensure there is no adhesion between the mold material sample and molten aluminum during the simulation. Factors that were tested were: geometrical shape of the sample, sample preheating temperature, surface roughness and lubrication

Site-selective quantum correlations revealed by magnetic anisotropy in the tetramer system SeCuO3

We present the investigation of a monoclinic compound SeCuO3 using x-ray powder diffraction, magnetization, torque and electron-spin-resonance (ESR). Structurally based analysis suggests that SeCuO3 can be considered as a 3D network of tetramers. The values of intra-tetramer exchange interactions are extracted from the temperature dependence of the susceptibility and amount to ~200 K. The inter-tetramer coupling leads to the development of long-range antiferromagnetic order at TN = 8 K. An unusual temperature dependence of the effective g-tensors is observed, accompanied with a rotation of macroscopic magnetic axes. We explain this unique observation as due to site-selective quantum correlations

The designing of the four – component composition of the blend of the polymer fibres on the basis of the numerical simulation

In the paper is presented a part of the project for determining basically permissible the four – component coposition of the (4K) mixture of the polymer fibres on the basis of the numerical simulation. The mathematical models of the composition are developed on the basis of the linear equations. The computer solution of some variants of these models is performed by Gaus procedures in combination with the numerical method of Monte Carlo simulation

Horizon 2020 program for industry 4.0: Towards a digital model of quality

Program Manufuture Vision 2020 razvijen je kao Strategic Research Agenda and Road Maps, kao osnova za EU istraživanja u okviru Horizont 2020. Ovaj dokument je predstavljao odgovor na globalne izazove konkurentnosti i održivog razvoja, želeći da industriju EU što više okrene, inovativnoj proizvodnji zasnovanoj na stvaranju dodatnih vrednosti za kupca i korišćenje ICT tehnologija. Nešto kasnije takođe je javno objavljen dokument - Manufuture a strategic research Agenda '2020-2030' i Roadmaps, kao podrška strukturnim promenama industrije, koja treba da bude orjetisana visokoj automatizaciji, efektivnosti i fleksibilnosti. Tehnološki razvoj vođen unapređenju tehnoloških potencijala u lancu procesa od sirovine do isključenja proizvoda iz upotrebe, kroz stalno unapređenje dodatnih vrednosti za kupca. Navedeni dokumenti Programa Manufuture predstavljaju i proaktivnu akciju zajedničkih istraživanja kroz 40 industrijskih sektora. Ključne oblasti ovih istraživanja su: fabrike budućnosti - the Factory of the Future (FOF), i digitalna proizvodnja - Digital Manufacturing, kao i digitalni kvalitet.Program Manufuture Vision 2020 was developed as a Strategic Research Agenda and Road Maps, as a basis for EU research within Horizon 2020. This document is a response to the challenges of global competitiveness and sustainable development, seeking to EU industry as many turns, innovative production based to create additional value for the customer and the use of ICT technologies. Somewhat later also made public a document - Manufuture a strategic research agenda '2020-2030' and Roadmaps, to support structural changes industry, which should be orjetisana high automation, effectiveness and flexibility. Technological developments driven by technological advancement potential in a process chain, from raw materials to the exclusion of the product from use, through continuous improvement of additional value for the customer. These documents Program Manufacture represent a proactive action and collaborative research for 40 industrial sectors. Key areas of this research are: the factory of the future - the Factory of the Future (FOF), and digital production - Digital Manufacturing as well as digital quality

Horizon 2020 program for industry 4.0: Towards a digital model of quality

Program Manufuture Vision 2020 razvijen je kao Strategic Research Agenda and Road Maps, kao osnova za EU istraživanja u okviru Horizont 2020. Ovaj dokument je predstavljao odgovor na globalne izazove konkurentnosti i održivog razvoja, želeći da industriju EU što više okrene, inovativnoj proizvodnji zasnovanoj na stvaranju dodatnih vrednosti za kupca i korišćenje ICT tehnologija. Nešto kasnije takođe je javno objavljen dokument - Manufuture a strategic research Agenda '2020-2030' i Roadmaps, kao podrška strukturnim promenama industrije, koja treba da bude orjetisana visokoj automatizaciji, efektivnosti i fleksibilnosti. Tehnološki razvoj vođen unapređenju tehnoloških potencijala u lancu procesa od sirovine do isključenja proizvoda iz upotrebe, kroz stalno unapređenje dodatnih vrednosti za kupca. Navedeni dokumenti Programa Manufuture predstavljaju i proaktivnu akciju zajedničkih istraživanja kroz 40 industrijskih sektora. Ključne oblasti ovih istraživanja su: fabrike budućnosti - the Factory of the Future (FOF), i digitalna proizvodnja - Digital Manufacturing, kao i digitalni kvalitet.Program Manufuture Vision 2020 was developed as a Strategic Research Agenda and Road Maps, as a basis for EU research within Horizon 2020. This document is a response to the challenges of global competitiveness and sustainable development, seeking to EU industry as many turns, innovative production based to create additional value for the customer and the use of ICT technologies. Somewhat later also made public a document - Manufuture a strategic research agenda '2020-2030' and Roadmaps, to support structural changes industry, which should be orjetisana high automation, effectiveness and flexibility. Technological developments driven by technological advancement potential in a process chain, from raw materials to the exclusion of the product from use, through continuous improvement of additional value for the customer. These documents Program Manufacture represent a proactive action and collaborative research for 40 industrial sectors. Key areas of this research are: the factory of the future - the Factory of the Future (FOF), and digital production - Digital Manufacturing as well as digital quality

Effect of NaCl on seed germination in some Centaurium Hill. Species (Gentianaceae)

The influence of high NaCl concentrations on seed germination in both light and darkness was examined in the species Centaurium pulchellum, C. erythraea, C. littorale, C. spicatum, and C. tenuiflorum. Salt tolerance was found to depend on the life history of the seeds. To be specific, seeds of all five species failed to complete germination when exposed to continuous white light if kept all the time in the presence of 100-200 mM and greater NaCl concentrations. However, when after two weeks NaCl was rinsed from the seeds and the seeds were left in distilled water under white light for an additional two weeks, all species completed germination to a certain extent. The percent of germination not only depended on NaCl concentration in the prior medium, but was also species specific. Thus, seeds of C. pulchellum, C. erythraea, and C. littorale completed germination well almost irrespective of the salt concentration previously experienced. On the other hand, seeds of C. tenuiflorum completed germination poorly if NaCl concentrations in the prior media were greater than 200 mM. When seeds after washing were transferred to darkness for an additional 14 days, they failed to complete germination if previously imbibed on media containing NaCl concentrations greater than 400 mM. However, the seeds of all species, even if previously imbibed at 800 mM NaCl, could be induced to complete germination in darkness by 1 mM gibberellic acid. .Uticaj visokih koncentracija NaCl na klijanje semena, kako na svetlosti tako i u tami, ispitivano je kod vrsta Centaurium pulchellum, C. erythraea, C. littorale, C. spicatum i C. tenuiflorum. Tolerantnost ovih biljaka na natrijum-hlorid zavisi od životnog ciklusa semena. Zapravo, semena svih pet ispitivanih vrsta nisu završavala klijanje kada su bila izložena kontinuelnoj beloj svetlosti u prisustvu 100-200 mM i pri većim koncentracijama. Pored toga, semena svih ovih vrsta, izložena imbibiciji na 800 mM NaCl, mogla su biti indukovana da završe klijanje u mraku uz dodatak 1 mM giberelinske kiseline. .nul

Morphometric Analysis of Nonsclerosed Glomeruli Size and Connective Tissue Content during the Aging Process

Number of sclerotic glomeruli increases during the aging process. Consequently, majority of remained nonsclerosed glomeruli become hypertrophic and some of them sclerotic, too. The aim of this study was to quantify the size and connective tissue content of nonsclerosed glomeruli and to evaluate the percentage of hypertrophic ones in examined human cases during the aging. Material was right kidney's tissue of 30 cadavers obtained during routine autopsies. Cadavers were without previously diagnosed kidney disease, diabetes, hypertension, or any other systemic disease. Tissue specimens were routinely prepared for histological and morphometric analysis. Images of the histological slices were analyzed and captured under 400x magnification with digital camera. Further they were morphometrically and statistically analyzed with ImageJ and NCSS-PASS software. Multiple and linear regression of obtained morphometric parameters showed significant increase of glomerular connective tissue area and percentage. Cluster analysis showed the presence of two types of glomeruli. Second type was characterized with significantly larger size, connective tissue content, and significantly lower cellularity, in relation to the first type. Such glomeruli might be considered as hypertrophic. First type of glomeruli was predominant in younger cases, while second type of glomeruli was predominant in cases older than 55 years

Profiling of microorganism-binding serum antibody specificities in professional athletes

The goal of this work was to elucidate similarities between microorganisms from the perspective of the humoral immune system reactivity in professional athletes. The reactivity of serum IgG of 14 young, individuals was analyzed to 23 selected microorganisms as antigens by use of the in house ELISA. Serum IgM and IgA reactivity was also analyzed and a control group of sex and age matched individuals was used for comparison. The obtained absorbance levels were used as a string of values to correlate the reactivity to different microorganisms. IgM was found to be the most cross reactive antibody class, Pearson’s r = 0.7–0.92, for very distant bacterial species such as Lactobacillus and E. coli.High correlation in IgG levels was found for Gammaproteobacteria and LPS (from E. coli) (r = 0.77 for LPS vs. P. aeruginosa to r = 0.98 for LPS vs. E.coli), whereas this correlation was lower in the control group (r = 0.49 for LPS vs. P. aeruginosa to r = 0.66 for LPS vs. E.coli). The correlation was also analyzed between total IgG and IgG subclasses specific for the same microorganism, and IgG2 was identified as the main subclass recognising different microorganisms, as well as recognising LPS. Upon correlation of IgG with IgA for the same microorganism absence of or negative correlation was found between bacteria-specific IgA and IgG in case of Lactobacillus and Staphylococcusgeni, whereas correlation was absent or positive for Candida albicans, Enterococcusfaecalis,Streptococcus species tested in professional athletes. Opposite results were obtained for the control group. Outlined here is a simple experimental procedure and data analysis which yields functional significance and which can be used for determining the similarities between microorganisms from the aspect of the humoral immune system, for determining the main IgG subclass involved in an immune response as well as for the analysis of different target populations

Z boson production in p+Pb collisions at sNN√=5.02 TeV measured with the ATLAS detector

The ATLAS Collaboration has measured the inclusive production of Z bosons via their decays into electron and muon pairs in p+Pb collisions at √ sNN = 5.02 TeV at the Large Hadron Collider. The measurements are made using data corresponding to integrated luminosities of 29.4 nb−1 and 28.1 nb−1 for Z → ee and Z → µµ, respectively. The results from the two channels are consistent and combined to obtain a cross section times the Z → `` branching ratio, integrated over the rapidity region |y ∗ Z | < 3.5, of 139.8 ± 4.8 (stat.) ± 6.2 (syst.) ± 3.8 (lumi.) nb. Differential cross sections are presented as functions of the Z boson rapidity and transverse momentum, and compared with models based on parton distributions both with and without nuclear corrections. The centrality dependence of Z boson production in p+Pb collisions is measured and analyzed within the framework of a standard Glauber model and the model’s extension for fluctuations of the underlying nucleon-nucleon scattering cross sectionFil: Aad, G.. Aix-Marseille Université; FranciaFil: Abbott, B.. Oklahoma State University; Estados UnidosFil: Abdallah, J.. Academia Sinica; ChinaFil: Abdinov, O.. Azerbaijan Academy of Sciences; AzerbaiyánFil: Aben, R.. University of Amsterdam; Países BajosFil: Alconada Verzini, María Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Alonso, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Arduh, Francisco Anuar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Dova, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Monticelli, Fernando Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Wahlberg, Hernan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Otero y Garzon, Gustavo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Piegaia, Ricardo Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Reisin, Hernan Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Sacerdoti, Sabrina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Zieminska, D.. Indiana University; Estados UnidosFil: Zimine, N. I.. Joint Institute for Nuclear Research ; RusiaFil: Zimmermann, C.. Universität Mainz; AlemaniaFil: Zimmermann, S.. Albert-Ludwigs-Universität; AlemaniaFil: Zinonos, Z.. Georg-August-Universität; AlemaniaFil: Zinser, M.. Universität Mainz; AlemaniaFil: Ziolkowski, M.. Universität Siegen ; AlemaniaFil: Živković, L.. University of Belgrade; SerbiaFil: Zobernig, G.. University of Wisconsin; Estados UnidosFil: Zoccoli, A.. Università di Bologna; ItaliaFil: Nedden, M. zur. Humboldt University; AlemaniaFil: Zurzolo, G.. Università di Napoli; ItaliaFil: Zwalinski, L.. Cern - European Organization For Nuclear Research; SuizaFil: The ATLAS Collaboration. No especifica