Search results for: DIRECT SAMPLE ANALYSIS

• Analysis of wave propagation in a bolted steel joint

  Publication

  • R. Kędra
  • M. Rucka

  - Year 2016

  The paper presents results of numerical and experimental investigations of elastic wave propagation in a bolted single-lap joint. The research was carried out for both symmetric and antisymmetric Lamb wave modes. In experimental studies the PZT transducers were used to excite and register wave propagation signals. The controlled value of the torque during measurements was ensured by the use of high precision torque wrenches. Numerical...

• Analysis of allophones based on audio signal recordings and parameterization

  Publication

  • A. Czyżewski
  • M. Piotrowska
  • B. Kostek

  - Journal of the Acoustical Society of America - Year 2017

  The aim of this study is to develop an allophonic description of English plosive consonants based on recordings of 600 specially selected words. Allophonic variations addressed in the study may have two sources: positional and contextual. The former one depends on the syllabic or prosodic position in which a particular phoneme occurs. Contextual allophony is conditioned by the local phonetic environment. Co-articulation overlapping...

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• Analysis of the Impact of Galileo Observations on the Tropospheric Delays Estimation

  Publication

  • Z. Baldysz
  • M. Szolucha
  • G. Nykiel
  • M. Figurski

  - Year 2017

  In this study we present analysis of the impact of Galileo observations on the ZTD and tropospheric gradients estimation. The tropospheric parameters were obtained in various scenarios, which differ from each other only in used satellite systems: Galileo-only, GPS-only, GPS/Galileo, GPS/GLONASS and GPS/GLONASS/Galileo. Then, comparative analysis between Galileo-only solution and the other ones, was carried out. As a reference,...

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• Perturbation analysis of electric field around objects in sea water

  Publication

  • K. Jakubiuk
  • P. Zimny
  • M. Wołoszyn

  - Poznan University of Technology Academic Journals. Electrical Engineering - Year 2012

  The paper presents an analytical approach to the perturbation analysis of electric field distribution caused by a sphere and an ellipsoid placed in a uniform electric field.

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• Material Parameters Identification of Historic Lighthouse Based on Operational Modal Analysis

  Publication

  • A. Tomaszewska
  • M. Drozdowska
  • M. Szafrański

  - Materials - Year 2020

  In the present paper, the identification of the material parameters of a masonry lighthouse is discussed. A fully non-invasive method was selected, in which the material properties were determined via numerical model validation applied to the first pair of natural frequencies and their related mode shapes, determined experimentally. The exact structural model was built by means of the finite element method. To obtain experimental...

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• Stress analysis of the bridge hangers in terms of the fatigue verification

  Publication

  • M. Szafrański
  • T. Galewski
  • R. Łapigrowski

  - Year 2018

  The paper presents the results of numerical stress analysis of the bridge rod hangers. Two types of hangers were taken into account, i.e. the bolted hanger and the welded hanger. A detailed FEM shell models of the connection area between the hanger and the bridge span have been developed. Local stress concentration effects have been investigated in terms of fatigue verification.

• Analysis of radiometric signal in sedimentating suspension flow in open channel

  Publication

  • M. Zych
  • R. Hanus
  • L. Petryka
  • D. Świsulski
  • M. Doktor
  • W. Mastej

  - Year 2014

  The article discusses issues related to the estimation of the sedimentating solid particles average flow velocity in an open channel using radiometric methods. Due to the composition of the compound, which formed water and diatomite, received data have a very weak signal to noise ratio. In the process analysis the known determining of the solid phase transportation time delay the classical cross-correlation function is the most...

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• Integrated safety and security analysis of hazardous plants and systems of critical infrastructure

  Publication

  • K. Kosmowski
  • M. Śliwiński
  • E. Piesik

  - Journal of Polish Safety and Reliability Association, Summer Safety and Reliability Seminars - Year 2015

  This article addresses an integrated safety and security analysis approach of hazardous industrial plants and systems of critical infrastructure. Nowadays due to new hazards that emerge there are opinions among experts that these issues require an integrated approach in life cycle, from the design concept, through the design and operation of the plant, to its decommissioning. It is proposed to start from an interesting methodology...

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• Thermal analysis of copper(II) complexes of general formula [Et4N]2[CuBrnCl4-n]

  Publication

  • E. Styczeń
  • W. K. Jóźwiak
  • M. Gazda
  • D. Wyrzykowski
  • Z. Warnke

  - JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY - Year 2008

  Badano dekompozycję termiczną związków składających sie z anionów: [CuBrnCl4-n]2- (n=0-4) i kationów tetrametyloamoniowych. Stosowano następujące metody badawcze: TG-FTIR, TG-MS, DTA i DTG. Pomiary przeprowadzono w atmosferze argonu i powietrza w zakresie temperatur od 293 K do 1073 K. Produkty dekompozycji identyfikowano metoda spektroskopii w podczerwieni (IR i FIR) oraz metodą dyfrakcji promieniowania rentgenowskiego.

• Analysis of urinary nucleosides as potential cancer markers determined using LC–MS technique

  Publication

  • W. Struck-Lewicka
  • R. Kaliszan
  • M. Markuszewski

  - Journal of Pharmaceutical and Biomedical Analysis - Year 2014

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• TiO2 nanotubes modification by photodeposition with noble metals: Characterization, optimization, photocatalytic activity, and by-products analysis

  Publication

  • J. Lincho
  • P. Mazierski
  • T. Klimczuk
  • R. F. Martins
  • J. Gomes
  • A. Zaleska-Medynska

  - Journal of Environmental Chemical Engineering - Year 2024

  Self-organized TiO2 nanotubes (TNTs) with 4 µm length were obtained by anodization method and calcined to obtain anatase crystallite phase. The photocatalysts were further decorated with Au, Ag, Pt or Pd nanoparticles (NPs), varying the metal loads (0.50, 0.75, 1, 2 and 5 mol%) by photodeposition. The material characterization confirmed the presence of nanoparticles in the TNTs surface, signs of the localized surface plasmon resonance...

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• Endoscopic image processing and analysis of pistons' service failures of marine diesel engines

  Publication

  • Z. Korczewski

  - Journal of Polish CIMEEAC - Year 2011

  The paper deals with diagnostic issues concerning endoscopic examinations of working spaces within marine diesel engines. In the beginning, endoscopy apparatus being on laboratory equipment of the Department of Ship Power Plants of Gdansk University of Technology has been characterized. The endoscopy considerations have been focused on theoretical bases of a digital image processing and especially - on the "Shadow" measurement...

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• On the Handling of Outliers in the GNSS Time Series by Means of the Noise and Probability Analysis

  Publication

  • A. Klos
  • J. Bogusz
  • M. Figurski
  • W. Kosek

  - Central European Journal of Geosciences - Year 2015

  The data pre-analysis plays a significant role in the noise determination. The most important issue is to find an optimum criterion for outliers removal, since their existence can affect any further analysis. The noises in the GNSS time series are characterized by spectral index and amplitudes that can be determined with a few different methods. In this research, the Maximum Likelihood Estimation (MLE) was used. The noise amplitudes...

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• Simultaneous elimination of Malachite Green, Rhodamine B and Cresol Red from aqueous sample with Sistan sand, optimized by Taguchi L16 and Plackett–Burman experiment design methods

  Publication

  • S. Marghzari
  • M. Sasani
  • M. Kaykhaii
  • M. Sargazi
  • M. Hashemi

  - Chemistry Central Journal - Year 2018

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• Effects of interactions between variation in dopaminergic genes, traumatic life events, and anomalous self-experiences on psychosis proneness: Results from a cross-sectional study in a nonclinical sample

  Publication

  • D. Frydecka
  • K. Kotowicz
  • Ł. Gawęda
  • K. Prochwicz
  • J. Kłosowska
  • J. Rymaszewska
  • A. Samochowiec
  • J. Samochowiec
  • P. Podwalski
  • E. Pawlak-Adamska... and 3 others

  - EUROPEAN PSYCHIATRY - Year 2020

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• Neutralising Responsibility: A Critical Analysis of an Airline’s Climate Disclosures

  Publication

  • E. Johansson

  - Year 2021

  Sustainability reporting provides companies with a medium through which they can communicate their non-financial impacts to stakeholders. The airline industry has been much at the centre of the climate change debate in recent years, which is why it is hardly surprising that airlines seek to take a proactive stance in such reporting. This study critically assesses how an airline based in the Scandinavian region constructs sustainability...

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• Wavelet Transform Analysis of Temperature Modulated Gas Sensor Response

  Publication

  • Ł. Woźniak
  • P. Kalinowski
  • G. Jasiński
  • P. Jasiński

  - Year 2018

  The aim of the study was to evaluate whether it is possible to extract the information about the gas concentration despite the influence of humidity. Commercial semiconductor sensor response was examined under the application of a periodic temperature change. The data was collected using measurement protocol for different concentrations of ammonia at specified levels of relative humidity. In this work we focused on the evaluation...

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• Analysis of balancing of four stroke V6 engines

  Publication

  • R. Mosakowski

  - Combustion Engines - Year 2013

  Analysis of balance of V6 engines with a common-pin crankshaft depending on a cylinder bank angle and the crank radius to connecting rod length ratios , based on the relations derived, is presented in the paper. The bank angles providing the lowest moment of inertia forces in reciprocating motion, for selected  values, were determined. The position of the plane of the main counterweights in order to maximum balance of the moment...

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• An Industrial Survey on Business Analysis Problems and Solutions

  Publication

  • P. Marciniak
  • A. Jarzębowicz

  - Advances in Intelligent Systems and Computing - Year 2016

  The paper focuses on the problems reported by business analysts which have a negative impact on their work and on the applicability of available business analysis (BA) techniques as solutions to such problems. A unified set of BA techniques was developed on the basis of 3 industrial standards associated with IIBA, REQB and IREB certification schemes. A group of 8 business analysts was surveyed to list problems they encounter in...

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• A model-based approach to analysis of authentication protocols.

  Publication

  • J. Górski
  • M. Olszewski
  • M. (. Olszewski

  - Year 2004

  W referacie przedstawiono zintegrowane podejście do analizy protokołów uwierzytelniania o nazwie Object-oriented Formal Authentication Protocol Security Analysis Framework (OF-APSAF). Podejście to jest zaprojektowane na bazie sprawdzonej metody formalnej CSP wraz z narzędziami ją wspierającymi: Casper oraz FDR. Jego integralną częścią jest półformalna zorientowana obiektowo technika modelowania protokołów, ich kontekstu oraz wymagań...

• COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS

  Journals

  ISSN: 0010-3624 , eISSN: 1532-2416

• Journal of Multi-Criteria Decision Analysis

  Journals

  ISSN: 1057-9214 , eISSN: 1099-1360

• International Journal of Housing Markets and Analysis

  Journals

  ISSN: 1753-8270 , eISSN: 1753-8289

• International Journal of Performance Analysis in Sport

  Journals

  ISSN: 2474-8668 , eISSN: 1474-8185

• Bruno Pini Mathematical Analysis Seminar

  Journals

  ISSN: 2240-2829

• Advances in Data Science and Adaptive Analysis

  Journals

  ISSN: 2424-922X , eISSN: 2424-9238

• Sequential Analysis-Design Methods and Applications

  Journals

  ISSN: 0747-4946 , eISSN: 1532-4176

• Agenda-A Journal of Policy Analysis and Reform

  Journals

  ISSN: 1322-1833 , eISSN: 1447-4735

• International Journal of Advances in Pharmaceutical Analysis

  Journals

  ISSN: 2277-9353

• Electronic Journal of Applied Statistical Analysis

  Journals

  ISSN: 2070-5948

• International Journal of Nonlinear Analysis and Applications

  Journals

  ISSN: 2008-6822

• Australian Journal of Mathematical Analysis and Applications

  Journals

  ISSN: 1449-5910

• Case Studies in Engineering Failure Analysis

  Journals

  ISSN: 2213-2902

• X-Ray Structure Analysis Online

  Journals

  ISSN: 1883-3578

• Applied Set-Valued Analysis and Optimization

  Journals

  ISSN: 2562-7775 , eISSN: 2562-7783

• Iranian Journal of Numerical Analysis and Optimization

  Journals

  ISSN: 2423-6977 , eISSN: 2423-6969

• NONLINEAR ANALYSIS-REAL WORLD APPLICATIONS

  Journals

  ISSN: 1468-1218

• NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS

  Journals

  ISSN: 0362-546X , eISSN: 1873-5215

• Legal Pluralism and Critical Social Analysis

  Journals

  ISSN: 2770-6869

• JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN

  Journals

  ISSN: 0309-3247 , eISSN: 2041-3130

• Analysis. Claves de Pensamiento Contemporáneo

  Journals

  eISSN: 2386-3994

• International Journal on Document Analysis and Recognition

  Journals

  ISSN: 1433-2833 , eISSN: 1433-2825

• INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION

  Journals

  ISSN: 1023-666X , eISSN: 1563-5341

• Moroccan Journal of Pure and Applied Analysis

  Journals

  ISSN: 2605-6364 , eISSN: 2351-8227

• International Journal of Numerical Analysis and Modeling

  Journals

  ISSN: 1705-5105

• Journal of Mathematical Physics Analysis Geometry

  Journals

  ISSN: 1812-9471 , eISSN: 1817-5805

• SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS

  Journals

  ISSN: 0895-4798 , eISSN: 1095-7162

• Thermogravimetric analysis/ pyrolysis of used tyres and waste rubber

  Publication

  • K. Januszewicz
  • M. Klein
  • E. Klugmann-Radziemska
  • D. Kardas

  - Physicochemical Problems of Mineral Processing - Year 2017

  The process of pyrolysis is investigated in this paper. The pyrolysis results of two samples: waste tyres and rubber at different heating rates (10, 20, 50 K/min), were compared. In other experiments the degradation of two pyrolysis products, char and oil was examined. The kinetic study using the thermogravimetry equipment (TG) was done, which allowed determination of the kinetic mechanism of the process. The elemental analysis...

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• Topological-numerical analysis of a two-dimensional discrete neuron model

  Publication

  • P. Pilarczyk
  • J. Signerska-Rynkowska
  • G. Graff

  - CHAOS - Year 2023

  We conduct computer-assisted analysis of a two-dimensional model of a neuron introduced by Chialvo in 1995 [Chaos, Solitons Fractals 5, 461–479]. We apply the method of rigorous analysis of global dynamics based on a set-oriented topological approach, introduced by Arai et al. in 2009 [SIAM J. Appl. Dyn. Syst. 8, 757–789] and improved and expanded afterward. Additionally, we introduce a new algorithm to analyze the return times...

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• SACAM A Model for Describing and Classifying Sentiment Analysis Methods

  Publication

  • A. Waloszek
  • W. Waloszek

  - Year 2017

  In this paper we introduce SACAM — a model for describing and classifying sentiment analysis (SA) methods. The model focuses on the knowledge used during processing textual opinions. SACAM was designed to create informative descriptions of SA methods (or classes of SA methods) and is strongly integrated with its accompanying graphical notation suited for presenting the descriptions in diagrammatical form. The paper discusses applications...

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