Open Access Conference Proceedings

Abstract: This study investigated the stabilization of cadmium sulfide (CdS) nanoparticles in aqueous solutions of the triblock copolymer Pluronic P123. The concentration of the added cadmium sulfide varied between 0.002 and 0.02 M. [..] Read more

Abstract: Composite nanofiber materials offer advanced properties and functions applicable in many fields, especially in medicine. Nowadays, these materials are mainly fabricated using the DC electrospinning technology with multi-spinnerets electrodes designed for such purpose. [..] Read more

Abstract: In the paper the results of investigation of drawing method including simple drawing and shear by computer simulation were presented. The simulation in Deform program was performed. [..] Read more

Abstract: Due to the specific requirements for monitoring processes and products in the aircraft industry, non-destructive testing (NDT) is increasingly used in combination with advanced statistical analysis.The paper presents the results of research aimed at determining the quality of wax models and multi-layered ceramic forms, used for precise casting of critical parts of aircraft engines. Studies on the shape and dimensions of wax models and ceramic moulds were made by 3D scanning using the GOM ATOS CORE 200 scanner. [..] Read more

Abstract: The critical strain for initiation of dynamic recrystallization is an important value in case of thermomechanical process design. In this research, different models have been utilized to describe hot compression flow curves of C45 carbon steel up to the peak point. [..] Read more

Abstract: The article describes the state of the art computer simulation in the field of metal forming processes the main problem points of traditional methods were identified. The method, that allows predict the deformation distribution in the volume of deformable metal with taking into account of microstructure behavioral characteristics in deformation load conditions, was described. [..] Read more

Abstract: Powder metallurgy is widely used in technical practice to manufacture products with specific properties. In the field of ammunition, powder metallurgy technology is used to produce frangible bullets designed for fire arms.This paper presents results of pressing of experimental cylindrical samples from mixture of Fe – Sn metal powders. [..] Read more

Abstract: Since the use of cold-rolled steel sections is a standard method in mechanical engineering and steelwork and cost efficiency is always a big issue, it is of great interest to address the highly non convex problem of cross-section optimisation. At a first glance classic genetic algorithms already seem to be suitable for this problem, because they are powerful search heuristics for solutions in non convex problems. [..] Read more

Abstract: Ecodesign of blades used in steam turbines is the example of integrating environmental aspects into the process of designing and development of a product during life cycle. The life cycle of blades begins with extraction of raw materials and manufacturing steel products used as material charge in the process of their production. [..] Read more

Abstract: Although the requirements on quality of products are increasing, most companies still pays little attention to product quality planning. Furthest in this direction they are automotive suppliers, which include most of metallurgical companies, which use quality planning methodologies developed for this industry area and which must within the framework of production part approval process submit evidence about successful products and processes quality planning. [..] Read more

Abstract: The main purpose of this article is to show how it can be used Hamiltonian graphs and their property in the software designing and testing. In the article there are described Hamiltonian graphs that are necessary to understand the content of the research conducted in a frame of R&D project called "The prototype of an innovative and technologically advanced OPTIbud B2B platform that supports the management of construction processes through the integration of data and information from multiple sources", funded by the National Research and Development Centre under the INNOTECH program, Hi-Tech path. [..] Read more

Abstract: The present study was conducted to identify simultaneously economic, environmental and social conditions that should be considered when deciding to cooperate with the supplier. This integrated approach allowed, besides identifying the validity of individual criteria, noting the relationship among a group of economic, social and environmental criteria. [..] Read more

Abstract: In this study magnesium based composite AX41 reinforced with short Al2O3 fibers were investigated. In-situ neutron diffraction has been applied to study deformation mechanisms under compressive deformation. [..] Read more

Abstract: One of the main problems companies have to solve is the distribution of resources among the potential beneficiaries. In many cases, this problem can be presented as a linear programming task with a linear objective function and constraining conditions. [..] Read more

Abstract: Light extraction (LE) efficiency of GaN buffer layer was studied by angle-resolved photoluminescence. We measured enhancement of light extraction efficiency (LEE) up to 154% by introducing the SiNx layer atop the GaN buffer and subsequent GaN light extraction layer (LEL) overgrowth. [..] Read more

Abstract: With growing pressure for wide application of silver nanoparticles, the methods of their production have become increasingly important. Moreover, repurposing waste has been a globally acknowledged trend in the context of circular economy approaches in recent decades. [..] Read more

Abstract: Al-Si alloys alloyed with Mn and Mg are widely used in industry, especially as cast alloys. The presence of Mg allows subsequent heat treatment, which will improve mechanical properties. [..] Read more

Abstract: This paper present the issue of plasma treatment of the surface of polypropylene (PP) using AgO+CuO coatings in order to antimicrobial activity. The analyzed coatings were deposited using High Power Impulse Magnetron Sputtering (HPIMS). [..] Read more

Abstract: Duplex steels are an austenitic-ferritic type of stainless steel. They have better mechanical strength, corrosion resistance, and fatigue strength in aggressive environments compared to traditional stainless steels in the food industry such as AISI 316 or 304. [..] Read more

Abstract: In this study, the reaction mechanisms of gold nanoparticles (AuNPs) synthesis using dialdehyde cellulose (DAC) and dialdehyde hyaluronate (DAH), and their covalent binding to chitosan nanofibers (CHITs), was investigated. The synthesis uses a redox reaction where dialdehyde polysaccharides are oxidized to dicarboxy polysaccharides and the gold salt precursor is reduced to elemental gold. [..] Read more