Piotr Szulc

Selecting predictive biomarkers from genomic data

Florian Frommlet, Piotr Szulc, Franz König, Małgorzata Bogdan

Recently there have been tremendous efforts to develop statistical procedures which allow to determine subgroups of patients for which certain treatments are effective. This article focuses on the selection of prognostic and predictive genetic biomarkers based on a relatively large number of …

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Study of the Properties and Particulate Matter Content of the Gas from the Innovative Pilot-Scale Gasification Installation with Integrated Ceramic Filter

Andrzej Sitka, Wiesław Jodkowski, Piotr Szulc, Daniel Smykowski et autres

This paper presents a study on the application of a ceramic filter in the biomass gasification process and its efficiency in particulate matter removal from the process gas and flue gas. A significant advantage of this type of filter is its high …

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Expansion of a SARS-CoV-2 Delta variant with an 872 nt deletion encompassing ORF7a, ORF7b and ORF8, Poland, July to August 2021

Natalia Mazur-Panasiuk, Łukasz Rąbalski, Tomasz Gromowski, Grzegorz Nowicki et autres

Routine genomic surveillance on samples from COVID-19 patients collected in Poland during summer 2021 revealed the emergence of a SARS-CoV-2 Delta variant with a large 872 nt deletion. This change, confirmed by Sanger and deep sequencing, causes complete loss of ORF7a, ORF7b, …

pl (code pays fourni par la source)

Application of Phase Change Material and Artificial Neural Networks for Smoothing of Heat Flux Fluctuations

Tomasz Tietze, Piotr Szulc, Daniel Smykowski, Andrzej Sitka et autres

The paper presents an innovative method for smoothing fluctuations of heat flux, using the thermal energy storage unit (TES Unit) with phase change material and Artificial Neural Networks (ANN) control. The research was carried out on a pilot large-scale installation, of which …

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Application of poultry manure as an energy resource by its gasification in a prototype rotary counterflow gasifier

Andrzej Sitka, Piotr Szulc, Daniel Smykowski, Wiesław Jodkowski

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Ghost QTL and hotspots in experimental crosses: novel approach for modeling polygenic effects

Jonas Wallin, Małgorzata Bogdan, Piotr Szulc, Rebecca W. Doerge et autres

Ghost quantitative trait loci (QTL) are the false discoveries in QTL mapping, that arise due to the "accumulation" of the polygenic effects, uniformly distributed over the genome. The locations on the chromosome that are strongly correlated with the total of the polygenic …

se, pl, us (code pays fourni par la source)

The influence of the impeller construction on the performance of one channel pump

Piotr Szulc, G Moliński, O Moloshnyi

Abstract The paper presents the comparison of the impeller’s construction on the operating parameters of the sewage pump. Three types of impellers were taken into consideration. The main geometrical parameters were identical, the differences were applied in the meridional cross–section and in …

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The influence of a pipe impeller external shape on the pump parameters

Janusz Skrzypacz, Piotr Szulc

Abstract Multi-piped impellers (name proposed by the authors) represent an innovative approach to the design of rotodynamic pumps operating at the specific speed of nq<10. In such a construction the energy increase is caused by the flow of liquid through the internal …

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Numerical simulation and experimental investigation of submersible sewage mixer performance

Dominik Błoński, Piotr Szulc, Artur Machalski, Janusz Rogula

Abstract This work focuses on methods of submersible sewage mixer performance evaluation comparison. In the paper an experiment with a submersible mixer with a published and known geometry has been presented. The authors measured thrust, torque rotation speed and electric power. Experiment …

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The numerical simulation of the rope vortex creation and the possibilities of its control

Piotr Szulc, Artur Machalski, Janusz Skrzypacz, Dominik Błoński

Abstract The rope vortex is a phenomena which can be observed in many hydraulic machines, especially turbines and pump–turbines. Its creation is based on a non uniform velocity profile characterized by high value of the circumferential component. This phenomena limits the range …

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Experimental and numerical research on influence of winglets arrangement on vortex pump performance

Artur Machalski, Janusz Skrzypacz, Piotr Szulc, Dominik Błoński

Abstract Vortex pumps are widely used in wide range of hydro-transportation applications. Main disadvantage of this type of pump design is low efficiency. Despite ongoing effort to improve vortex impeller performance precise algorithm for their optimal design doesn't exist. One of the …

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Ghost QTL and hotspots in experimental crosses - novel solution by mixed model with nonzero mean

Piotr Szulc, Jonas Wallin, Małgorzata Bogdan, Rebecca W. Doerge et autres

Abstract “Ghost-QTL” are the false discoveries in QTL mapping, that arise due to the “accumulation” of the polygenic effects, uniformly distributed over the genome. The locations on the chromosome which are strongly correlated with the summary polygenic effect depend on a specific …

pl, se, us (code pays fourni par la source)