Abstract The introduction of solutions conventionally called Industry 4.0 to the industry resulted in need make many changes traditional procedures industrial data analysis based on DOE (Design Experiments) methodology. increase number controlled and observed factors considered, intensity stream size analyzed datasets revealed shortcomings existing procedures. Modifying by adapting Big Data data-driven methods is becoming an increasingly pressing need. article presents current DOE, considers...

This paper analyzes the effective use of a mixture fly ash (MSWI-FA) and solid waste from flue gas treatment (MSWI-SW), which are by-products municipal incineration process. MSWI-FA (19 01 13*) MSWI-SW 07*) classified as hazardous due to their toxic metal content leaching potential, currently lack practical applications, unlike slag bottom 12). study tested these wastes partial substitutes for natural sand within range 0–20% cement mass. Statistical analysis experimental results allowed...

The paper analyses the indoor environment in two modern intelligent buildings located Poland. Measurements of air and globe temperatures, relative humidity carbon dioxide concentration 117 rooms carried out space 1.5 years were presented. Thermal comfort occupants has been investigated using a questionnaire survey. Based on 1369 questionnaires, thermal sensation, acceptability preference votes analysed view their interdependency as well dependency operative temperature, which proved to be...

The paper presented the findings obtained by industrial research and experimental development on use of rare earth metals (REMs) in production heavy steel ingots their impact internal quality 42CrMo4 grade forging. REMs alloying was carried out after vacuuming steel. A relatively large melting loss cerium (about 50%) its further decrease casting due to reoxidation were observed. Refinement structure better mechanical properties forged bar containing about 0.02 wt.% Ce compared that standard...

The paper described properties of electro-spark deposited coatings under influence the laser treatment process.The were assessed by analyzing coating microstructure, X-ray radiation, microhardness, bonding strength, corrosion resistance, porosity and wear tests.The tests conducted for Mo Cu (the anode) which over C45 steel substrate cathode) melted with a beam.The means an ELFA-541.The processing was performed Nd:YAG laser.The after are still distinguished very good performance properties,...

Abstract Agitated Vitex agnus castus L. shoot cultures were established to analyse the content of selected pharmaceutically important flavonoids and phenolic acids. Two variants (selected from nine ones) MS medium prepared: A (BAP 1 mg/L; NAA 0.5 GA 3 0.25 mg/L) B 2 mg/L). The biomass was harvested after 1, 2, 3,4, 5 6 weeks. Four‐week (variant A) perform precursor feeding experiment. L‐phenylalanine dose 1.6 g/L appears be most advantageous. Compared control cultures, individual compounds...

Enhancement of pool boiling heat transfer can be attained with a number passive and active techniques. The paper experimentally analyses the impact laser treatment copper surfaces on distilled water ethyl alcohol. samples were modified beam to produce longitudinal grooves highly developed microstructures in textured area. Specimens different groove depths, widths micro-fin produced. results indicate significant influence processing flux dissipated from enhancement for all tested....

Electro-spark deposition (ESD) and laser beam machining (LBM) are the technologies using concentrated energy flux. This paper deals with issue of impact modification on morphology mechanical properties carbide/copper coatings produced by electro-spark treatment. The were applied to C45 carbon steel samples EIL-8A device. following three types electrodes made powder metallurgy (PM) hot pressing technique, from copper tungsten carbide powders different percentage compositions, used for...

Abstract The work presents the use of laser texturing DLC coatings to improve tribological properties. were applied by PVD method rings made 4H13 steel. surface was performed with TruMICRO 5325c picosecond radiation wavelength λ = 343 nm. microstructure analysis, microgeometry and microhardness measurements tests carried out. problem presented in paper can be used extend knowledge areas application coatings, especially sliding friction pairs.

The main objective of the present work is to determine effects laser processing on properties WC-Co electro-spark deposited (ESD) coatings steel substrates. Tungsten carbide have been applied substrates using a manual electrode feeder, model EIL-8A. beam (LBP) was performed an Nd:YAG fiber laser. microstructure and treated/melted were evaluated by means scanning electron microscopy (SEM), X-ray diffraction (XRD), surface geometric structure (SGS) roughness measurements adhesion,...

The paper analyses thermal comfort in intelligent and traditional buildings Poland. It provides a comprehensive study on the subjective assessment of indoor environment conditions as well parameters that influence human sensations preferences. Direct measurements physical (e.g., air globe temperature, relative humidity) simultaneously conducted anonymous questionnaire studies were used to provide necessary data. covered all seasons large number participants representing various age groups...

Phenolic acids are an important group of plant secondary metabolites with various, valuable therapeutic properties. Apart from plants growing in the open air, tissue cultures can be alternative source metabolites. The yield their accumulation vitro increased by different methods, including culture medium supplementation precursors, elicitors and changing standard amounts components. purpose this study was to investigate influence precursor (L-phenylalanine), elicitor (methyl jasmonate) a...

The electrospark deposition (ESD) is a well-known cheap method utilizing concentrated energy flux to transfer material of an electrode onto the surface machined for enhancing properties its layer. Typically, hard may be deposited materials with lower hardness make such object more robust wearing. Coatings produced by ESD applied protect new elements or recover worn elements. Unfortunately, process produces high roughness. laser beam machining (LBM) has been involved roughness coating made...

Harpagide and its derivatives have valuable medicinal properties, such as anti-inflammatory, analgesic potential antirheumatic effects. There is the demand for searching plant species containing these iridoids or developing biotechnological methods to obtain compounds. The present study investigated effects of methyl jasmonate (MeJa, 50 μM), ethephon (Eth, μM) L-phenylalanine (L-Phe, 2.4 g/L medium), added previously selected variant Murashige Skoog medium (supplemented with growth...

This paper discusses the effect of selected parameters laser welding on mechanical properties welds. Two were analysed: speed and power. The material in fusion zone heat affected determined by performing static tensile tests, hardness tests microscopic analysis. was carried out using a TRUMPF Lasercell 1005 CO2 (wavelength λ=10.6 μm). specimens 0.8 mm thickness they made DC04 steel. conducted means LabTest 5.20SP1 universal testing machine designed to determine compressive strengths....

Abstract Centella asiatica (L.) Urban is an important pharmacopoeial plant used not only in medicine but also cosmetology. C. agitated shoot cultures were established to study the influence of ethephon, methyl jasmonate, L ‐phenylalanine (Eth 50 µM, MeJa L‐Phe 2.4 g/L medium, respectively; seven variants supplementation) on accumulation secondary metabolites: main centellosides (asiaticoside and madecassoside) selected phenolic acids, flavonoids biomass. Microshoots harvested two six days...

Microstructure and Tribological Properties of DLC Coatings RADEK Norbert, PIETRASZEK Jacek, SZCZOTOK Agnieszka, FABIAN Peter KALINOWSKI Artur Abstract. This paper presents the results diamond-like carbon coatings deposited using physical vapor deposition PVD process on 4H13 stainless steel samples. The properties were assessed by analyzing coating microstructure, nanohardness, roughness tribological tests. […]

PartnerTech provides printed circuit board (PCB) assembly on request. Wired elements are assembled in through-hole technology and soldered the wave soldering machine. The PCB with inserted is passed across pumped of melted solder. Typically this process accompanied by some class defects like cracks, cavities, wrong solder thickness poor conductor. In Ltd. another type was observed: dispersion small droplets around holes. Quality assurance department plans to optimize order reduce number...

Abstract Melittis melissophyllum L., a medicinal plant currently used in the folk medicine, was analyzed for content of flavonoid compounds. The plants were collected two locations Poland May and September. MeOH Extracts from leaves flowers (separately) by HPLC‐DAD. Eight compounds identified all samples quantitatively as cinaroside (=luteolin 7‐ O ‐glucoside), rutin, myricetin, quercitrin, quercetin, luteolin, kaempferol, apigenin. M. accumulated highest total amounts flavonoids (flowers:...

Abstract The primary objective was to test a usefulness of the specific fixed-effect model for analysis quantitative relationships gathered from image material microstructures. dataset obtained investigation turbine blades made superalloy IN713C. based on general linear resulted in informative plots revealing mutual between secondary dendrite arm spacing and mean plane section area carbides material. Directions further research also were obtained.

Since R.A. Fisher introduced the analysis of variance (ANOVA), classic design experiments (DoE) utilizes factorial model fixed effects.The typical procedure assumes normal distribution noise and uses least square method (LSQ) to identify effects with a priori assumed structure main some interactions, usually up second order.The terms are repeatedly eliminated in specific backward stepwise regression.Methods approximation prediction rapidly evolved recent years.Apart from this, approach is...