Wyniki wyszukiwania dla: PERFORMANCE, SCIENTIFIC HYPOTHESIS, SEALING SYSTEMS - MOST Wiedzy

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Wyniki wyszukiwania dla: PERFORMANCE, SCIENTIFIC HYPOTHESIS, SEALING SYSTEMS
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Wyniki wyszukiwania dla: PERFORMANCE, SCIENTIFIC HYPOTHESIS, SEALING SYSTEMS

  • Antioxidants: a premature scientific hypothesis that reshuffled the traditional food pyramid

    Publikacja

    Antioxidants present in substantial amounts in foods, plant-based products in particular, have been suggested as chemopreventive agents that can curb the development of undesirable health effects caused by oxidative stress simply by enriching diet in such compounds. This idea has been enthusiastically accepted by consumers, as well as food and pharmaceutical industry, and created great demand for products containing antioxidant...

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  • Influence of lubricating oil improvers on performance of crankshaft seals

    Publikacja

    This paper presents an original method for checking influence of lubricating oil improvers on performance of crankshaft seals of combustion piston engine. Crankshaft seals were tested with the use of a modified friction node of T-02 four- ball apparatus in laboratory conditions. The tests were conducted according to a worked-out algorithm. Their results confirmed usefulness of the method for determining „harmful” performance...

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  • Diagnostic Model of Crankshaft Seals

    Publikacja

    T he paper presents a research stand being a diagnostic model of radial lip seals used, among others, on crankshafts of piston combustion engines in order to identify the correctness of their operation. The possibility of determining the technical condition of lip seals on the basis of the proposed coefficient of correctness of operation has been described. T he basic features of seals influencing their correctness of...

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  • Linkages between services and manufacturing as a new channel for GVC growth: evidence from CEE countries

    Publikacja

    - Rok 2018

    The aim of this paper is to use a panel Granger causality test to verify the hypothesis of the existence of a causal relationship between forward linkages from domestic services to manufacturing and a country’s participation and position in GVCs in selected central and eastern European economies – the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland and Slovakia – for the period 2000-2014. Our results show that the Baltic...

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  • Assessing Acute Toxicity of Selected Packages Internal Layers Extracts using Microtox®

    Publikacja

    In the scientific literature related to the widely understood issue of packaging materials designed to have contact with food (food contact materials), there is much information on raw materials used for their production, as well as their physiochemical properties, types and parameters. Unfortunately, not much attention is given to the issues concerning migration of toxic substances from packaging and its actual influence on the...

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  • Phenotypic consequences of the LYS4 gene disruption in Candida albicans

    Publikacja

    - MYCOSES - Rok 2012

    The main scientific purpose of our studies was to verify the hypothesis that homoaconitase (HA) from Candida albicans, an enzyme catalyzing a second step of the α-aminoadipate pathway (AAP) of L-Lys biosynthesis may become a new target for antifungal chemotherapy. Previous studies indicated that the A. fumigatus mutant lacking the functional lysF gene, encoding HA, exhibited attenuated virulence in a low-dose mouse infection model...

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  • The image of the City on social media: A comparative study using “Big Data” and “Small Data” methods in the Tri-City Region in Poland

    Publikacja

    “The Image of the City” by Kevin Lynch is a landmark planning theory of lasting influence; its scientific rigor and relevance in the digital age were in dispute. The rise of social media and other digital technologies offers new opportunities to study the perception of urban environments. Questions remain as to whether social media analytics can provide a reliable measure of perceived city images? If yes, what implication does...

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  • Parallel Programming for Modern High Performance Computing Systems

    Publikacja

    - Rok 2018

    In view of the growing presence and popularity of multicore and manycore processors, accelerators, and coprocessors, as well as clusters using such computing devices, the development of efficient parallel applications has become a key challenge to be able to exploit the performance of such systems. This book covers the scope of parallel programming for modern high performance computing systems. It first discusses selected and...

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  • Performance Analysis of Convolutional Neural Networks on Embedded Systems

    Publikacja

    - Rok 2020

    Machine learning is no longer confined to cloud and high-end server systems and has been successfully deployed on devices that are part of Internet of Things. This paper presents the analysis of performance of convolutional neural networks deployed on an ARM microcontroller. Inference time is measured for different core frequencies, with and without DSP instructions and disabled access to cache. Networks use both real-valued and...

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  • Efficiency Evaluation of High Performance Computing Systems Using Data Envelopment Analysis

    Publikacja

    - Rok 2014

    The paper presents an evaluation method of high performance computing (HPC) systems using multicriteria efficiency analysis. The Data Envelopment Analysis approach was applied and adapted to the specifics of HPC, which enabled us to compare relative efficiency of systems considering simultaneously multiple parameters. The analysis is based on the TOP500 list of world largest supercomputers and their parameters such as: the number...