Search results for: thermal a

• Influence of external walls' thermal capacitance on indoor thermal comfort

  Publication

  • K. Arendt

  - Year 2013

  The doctoral thesis presents the results of numerical investigations on the influence of walls’ thermal capacitance on indoor thermal comfort. A proper set of thermal parameters of a building structure can considerably limit the heating / cooling demand, and passively increase the indoor thermal comfort. However the effect of building thermal capacitance on indoor conditions is complex and not always beneficial. Among a great number...

• Influence of nanoparticle concentration on thermal properties of thermal oil-MWCNT nanofluid

  Publication

  • J. Cieśliński
  • K. Krygier
  • S. Smoleń

  - Applied Mechanics and Materials - Year 2016

  Results of the measurements of dynamic viscosity, thermal conductivity, electrical conductivity and pH of thermal oil-MWCNT (TO-MWCNT) nanofluid have been presented. Nanoparticles were tested at the concentration of 0.001%, 0.005%, 0.01%, 0.05%, and 0,1% by weight. Thermal oil (TO) was selected as a base liquid, because of possible application in ORC systems as an intermediate heating agent. Multi-walled carbon nanotubes were used...

• INFLUENCE OF NANOPARTICLE CONCENTRATION ON THERMAL PROPERTIES OF THERMAL OIL-MWCNT NANOFLUID

  Publication

  • J. Cieśliński
  • K. Ronewicz

  - Year 2015

  This paper deals with measurements of dynamic viscosity, thermal conductivity, electrical conductivity and pH of thermal oil-MWCNT (TO-MWCNT) nanofluid. Nanoparticles were tested at the concentration of 0.001%, 0.005%, 0.01%, 0.05%, and 0,1% by weight. Ultrasonic vibration was used in order to stabilize the dispersion of the nanoparticles. Thermal oil (TO) was selected as a base liquid, because of possible application in ORC systems...

• Quantitative Active Dynamic Thermal IR-Imaging and Thermal Tomography in Medical Diagnostic

  Publication

  • A. Z. Nowakowski

  - Year 2013

  Principles of Active dynamic thermal (ADT) IR-imaging and Thermal Tomography are described in details. Basic medical applications of this new modality are also discussed.

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• Quantitative active dynamic thermal Ir-Imaging and thermal tomography in medical diagnostics

  Publication

  • A. Z. Nowakowski

  - Year 2008

• Quantitative active dynamic thermal ir-imaging and thermal tomography in medical diagnostics

  Publication

  • A. Z. Nowakowski

  - Year 2006

  Praca dotyczy nowych technik obrazowania w diagnostyce medycznej, wykorzystując przetwarzanie obrazów termicznych rejestrowanych w podczerwieni. Opisano właściwości termiczne tkanek biologicznych, omówiono medele termiczne i zdefiniowano zastępcze parametry syntetyczne, metody pomiarów i stosowane urządzenia. Omówiono procedury akwizycji danych i ich przetwarzania. Wprowadzono pojęcie tomografii termicznej. Opisano przeprowadzone...

• Quantitative Active Dynamic Thermal IR-Imaging and Thermal Tomography in Medical Diagnostics

  Publication

  • A. Z. Nowakowski

  - Year 2012

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• Measurement of temperature-dependent viscosity and thermal conductivity of alumina and titania thermal oil nanofluids

  Publication

  • J. Cieśliński
  • K. Ronewicz
  • S. Smoleń

  - Year 2014

  The results of simultaneous measurements of dynamic viscosity, thermal conductivity, electrical conductivity and pH of two nanofluids, i.e. thermal oil/Al2O3 and thermal oil/TiO2 are presented. Thermal oil was selected as a base liquid because of possible application in ORC systems as an intermediate heating agent. Nanoparticles were tested at the concentration of 0.1%, 1% and 5% by weight within temperature range from 20°C to...

• MEASUREMENT OF TEMPERATURE-DEPENDENT VISCOSITY AND THERMAL CONDUCTIVITY OF ALUMINA AND TITANIA THERMAL OIL NANOFLUIDS

  Publication

  • J. Cieśliński
  • K. Ronewicz
  • S. Smoleń

  - Archives of Thermodynamics - Year 2015

  In this study results of simultaneous measurements of dynamic viscosity, thermal conductivity, electrical conductivity and pH of two nanofluids, i.e. thermal oil/Al2O3 and thermal oil/TiO2 are presented. Thermal oil is selected as a base liquid because of possible application in ORC systems as an intermediate heating agent. Nanoparticles were tested at the concentration of 0.1%, 1% and 5% by weight within temperature range from...

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• Deterioration of masonry structure investigated by a thermal camera with a qualitative assessment of thermal image processing

  Publication

  • P. Ziółkowski
  • M. Niedostatkiewicz
  • J. Szulwic

  - Year 2018

  Thermal imaging is contemporary remote sensing measurement technique, which provides an image of the temperature distribution in the measured object. The method is widely used, due to its mobility as well as the non-destructive character of the measurement. Infrared thermography is especially relevant in the inspection of insulation, what is more, it is a suitable device for detecting thermal bridges and structural changes, which...

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• Preparation, thermal conductivity, and thermal stability of flame retardant polyethylene with exfoliated MoS2/MxOy

  Publication

  • K. Wenelska
  • E. Mijowska

  - NEW JOURNAL OF CHEMISTRY - Year 2017

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• Thermal Biomass Conversion: A Review

  Publication

  • W. Lewandowski
  • M. Ryms
  • W. Kosakowski

  - Processes - Year 2020

  In this paper, the most important methods of thermal conversion of biomass, such as: hydrothermal carbonization (180–250 °C), torrefaction (200–300 °C), slow pyrolysis (carbonization) (300–450 °C), fast pyrolysis (500–800 °C), gasification (800–1000 °C), supercritical steam gasification, high temperature steam gasification (>1000 °C) and combustion, were gathered, compared and ranked according to increasing temperature. A comprehensive...

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• IR-THERMAL IMAGING IN CARDIOSURGERY

  Publication

  • M. Kaczmarek

  - Year 2013

  A method for monitoring the state of the myocardium during cardiosurgical interventions based on thermal IR imaging is presented. These methods called Static Thermography and Active Dynamic Thermography (ADT) uses information about distribution of temperature on the surface and an external excitation source to induce thermal transient processes in a tested object. Recording time series of thermograms allows to calculate parametric...

• Application of nanofluids in thermal technologies

  Publication

  • J. Cieśliński

  - Year 2019

  Nanofluids it is a relatively new category of thermal fluids that can serve as coolants, both in single- and two phase systems. However application of nanofluids in industrial applications requires faultless their thermophysical properties. Existing models originally developed for liquid/solid particles mixtures (slurries) fail in case of nanofluids. Moreover correlations used to calcuate heat transfer coefficients of conventional...

• Thermal subjective sensations of motorcyclists

  Publication

  • M. Zwolińska

  - ACCIDENT ANALYSIS AND PREVENTION - Year 2013

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• Morphology and the physical and thermal properties of thermoplastic polyurethane reinforced with thermally reduced graphene oxide

  Publication

  • M. Strankowski
  • Ł. Piszczyk
  • P. Kosmela
  • P. Korzeniewski

  - Polish Journal of Chemical Technology - Year 2015

  In this study, thermally reduced graphene oxide (TRG)-containing polyurethane nanocomposites were obtained by the extrusion method. The content of TRG incorporated into polyurethane elastomer systems equaled 0.5, 1.0, 2.0 and 3.0 wt%. The morphology, static and dynamic mechanical properties, and thermal stability of the modified materials were investigated. The application of TRG resulted in a visible increase in material stiffness...

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• Structure and thermal expansion of liquid bismuth

  Publication

  • S. Mudry
  • I. Shtablavyi
  • U. Liudkevych
  • S. Winczewski

  - MATERIALS SCIENCE-POLAND - Year 2015

  Experimental structural data for liquid Bi were used for estimation of the main structure parameters as well as the thermal expansion coefficient both in supercooled and superheated temperature ranges. It was shown that the equilibrium melt had a positive thermal expansion coefficient within a temperature range upon melting and a negative one at higher temperatures. The former was related to structure changes upon melting, whereas...

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• AITP - AI Thermal Pedestrians Dataset

  Publication

  • A. Górska
  • P. Guzal
  • A. Wędołowska
  • M. Włoszczyńska
  • J. Rumiński

  - Year 2022

  Efficient pedestrian detection is a very important task in ensuring safety within road conditions, especially after sunset. One way to achieve this goal is to use thermal imaging in conjunction with deep learning methods and an annotated dataset for models training. In this work, such a dataset has been created by capturing thermal images of pedestrians in different weather and traffic conditions. All images were manually annotated...

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• Active IR-Thermal Imaging in Medicine

  Publication

  • M. Kaczmarek
  • A. Z. Nowakowski

  - JOURNAL OF NONDESTRUCTIVE EVALUATION - Year 2016

  In this paper we summarize results of several research projects devoted to development of new diagnostic methods and procedures based on quantitative infrared thermography in medical applications. First, basics of active dynamic thermography are presented. Described are both, instrumentation and software comprising measurement procedures including collection of series of IR-images after external excitation, data treatment with...

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• Extremal thermal loading of a bifurcation pipe

  Publication

  • B. Kraszewski
  • G. Bzymek
  • P. Ziółkowski
  • J. Badur

  - AIP Conference Proceedings - Year 2019

  The subject of considerations is a spherical bifurcation pipe of a live steam made of steel P91, which is an element of a block of coal-fired power plant working with a 18K370 turbine. As experience shows, it is a very sensitive element of the boiler pipelines. An extreme work scenario for such a block has been adopted, in which the turbine is shutting down to a warm state three times in 24 hours. This is an action dictated by...

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• Thermal Imaging in Wound Healing Diagnostics

  Publication

  • A. Z. Nowakowski
  • M. Kaczmarek
  • M. Moderhak
  • P. Siondalski
  • Ł. Woś

  - Measurement Automation Monitoring - Year 2015

  Results of a project searching for objective, quantitative evaluation of postoperative wound healing in cardiosurgery are presented. We propose simple thermal models of the healing processes after cardiosurgery interventions as objective descriptors allowing classification of patients for extraction and following recovery at home or for prolonged treatment in a hospital. Classification of healing as the normal process or as a process...

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• The Role of Thermal Monitoring in Cardiosurgery Interventions

  Publication

  • A. Z. Nowakowski
  • M. Kaczmarek
  • J. Rogowski

  - Year 2013

  The results of a research project devoted to the analysis of the value of IR-thermal imaging in monitoring the quality of cardiosurgery interventions are presented. The role of the ADT is underlined.

• Thermal degradation of poly(alkyl methacrylates)

  Publication

  • Z. Czech
  • R. S. Pełech

  - JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY - Year 2010

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• The DICOM standard for medical thermal imaging

  Publication

  • J. Rumiński

  - Year 2008

  W pracy przedstawiono propozycję schematu danych dla potrzeb ujęcia jej w międzynarodowej normie DICOM. Schemat danych oraz oprogramowanie referencyjne przygotowane dla potrzeb aplikacji termografii w medycynie.

• Thermal imaging and modelling of burned skin

  Publication

  • M. Kaczmarek

  - Year 2008

  W artykule przedstawiono wyniki eksperymentów in-vivo na zwierzętach w diagnostyce oparzeń z wykorzystaniem metod obrazowania termicznego w podczerwieni. Wyniki skorelowano z rezultatami otrzymanymi w symulacjach numerycznych tkanki skóry.

• The Role of Thermal Monitoring in Cardiosurgery Interventions

  Publication

  • A. Z. Nowakowski
  • M. Kaczmarek
  • J. Rogowski

  - Year 2012

• Advances of IR-Thermal Diagnostics in Medicine

  Publication

  • A. Z. Nowakowski
  • M. Kaczmarek
  • M. Bajorek
  • M. Moderhak
  • M. Suchowirski

  - Year 2009

• Thermal Instability of Gold Thin Films

  Publication

  • M. S. Łapiński
  • P. Dróżdż
  • M. Gołębiowski
  • P. Okoczuk
  • J. Karczewski
  • M. Sobanska
  • A. Pietruczik
  • Z. R. Zytkiewicz
  • R. Zdyb
  • W. Sadowski
  • B. Kościelska

  - Coatings - Year 2023

  The disintegration of a continuous metallic thin film leads to the formation of isolated islands, which can be used for the preparation of plasmonic structures. The transformation mechanism is driven by a thermally accelerated diffusion that leads to the minimalization of surface free energy in the system. In this paper, we report the results of our study on the disintegration of gold thin film and the formation of nanoislands...

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• Thermal Imaging in Wound Healing Diagnostics

  Publication

  • A. Z. Nowakowski
  • M. Kaczmarek
  • M. Moderhak
  • P. Siondalski
  • Ł. Woś

  - Year 2015

  Opisano wyniki projektu badawczego poświęconego opracowaniu metody obiektywnej diagnostyki ran pooperacyjnych w kardiochirurgii. Sprawdzono możliwość połączenia oceny obrazów RGB z obrazami termograficznymi oraz nową w medycynie metodą aktywnej termografii dynamicznej ADT. W projekcie zastosowano chłodzenie obszaru zainteresowania wykorzystując kriostat na dwutlenku węgla. W okresie powrotu do stanu równowagi termodynamicznej rejestrowane...

• Thermal Properties of PLA/TPS Blends

  Publication

  • H. Janik
  • M. Sienkiewicz
  • A. Lachowicz
  • J. Kucińska-Lipka

  - Year 2014

  Four types of polymer compositions having different amount of potato starch, glycerin and poly(lactic acid) was obtained and characterized by DSC. Adding of TPS to PLA lowered Tg.

• Application of nanofluids in selected thermal technologies

  Publication

  • J. Cieśliński

  - Year 2015

  Some peculiarities regarding convective heat transfer of nanofluids are presented. Particularly, results of the fundamental research concerning pool boiling and single phase convection of nanofluids as well as data obtained for selected heat exchangers operated with nanofluids are discussed.

• Comparison of thermal and electrical tomography in medicine.

  Publication

  • A. Z. Nowakowski

  - Year 2004

  Techniki pomiarowo diagnostyczne - tomografia termiczna i tomografia elektroimpedancyjna - nowe w aplikacjach klinicznych walczą o zdobycie akceptacji w środowisku medycznym i w diagnostyce medycznej wybranych schorzeń. Porównano właściwości termiczne i elektroimpedancyjne tkanek biologicznych. Pokazano znaczenie obu technik w szeregu aplikacjach medycznych. Przedyskutowano zalety i wady obu metod. Wymieniono podstawowe aplikacje...

• Defining the thermal conductivity of thermally heterogeneous hollow wall bricks used as elements for increasing the comfort of buildings

  Publication

  • K. Pawłowski
  • M. Niedostatkiewicz

  - Inżynieria Bezpieczeństwa Obiektów Antropogenicznych - Year 2021

  The article presents numerical calculation analysis in the scope of determining thermal conductivity coefficientλeq[W/(m·K)] of thermally heterogeneous hollow bricks of thermally heterogeneous structure (a combinationof structural material with thermal insulation material). Numerical calculations were conducted by means ofprofessional software TRISCO-KOBRU 86, serving thermal circulation analysis in a 2D field in stationary approach.The...

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• Galerkin Finite Element Process for Entropy Production and Thermal Evaluation of Third-Grade Fluid Flow: A Thermal Case Study

  Publication

  • F. Shahzad
  • W. Jamshed
  • E. S. M. T. El Din
  • R. Safdar
  • N. A. A. M. Nazir
  • R. W. Ibrahim
  • S. M. Hussain
  • I. Ullah
  • M. B. Hafeez
  • M. Krawczuk

  - Applied Sciences-Basel - Year 2022

  : A fluid’s moving class improves its heat transmission capability, as well as its rigidity, owing to multivariate molecule suspension. In this way, nanofluids are superior to common fluids. In this study, we evaluated the features of ease and heat transfer. Furthermore, we investigated permeable media, heat source, variable heat conductivity, and warm irradiation results. A mathematical technique known as the Galerkin finite element...

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• Inter-laboratory proficiency tests in measuring thermal insulation and evaporative resistance of clothing using the Newton-type thermal manikin

  Publication

  • M. Młynarczyk
  • G. Havenith
  • J. Léonard
  • R. Martins
  • S. Hodder

  - TEXTILE RESEARCH JOURNAL - Year 2018

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• Thermal analysis and experimental verification of permanent magnet synchronous motor by combining lumped-parameter thermal networks with analytical method

  Publication

  • M. Nguyen
  • J. Woo
  • H. Shin
  • Y. Lee
  • H. Lee
  • K. Shin
  • A. Phung
  • J. Choi

  - AIP Advances - Year 2023

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• Protein thermal stabilization in aqueous solutions of osmolytes

  Publication

  • P. Bruździak
  • A. Panuszko
  • M. Jourdan
  • J. Stangret

  - Acta Biochimica Polonica - Year 2016

  Proteins’ thermal stabilization is a significant problem in various biomedical, biotechnological, and technological applications. We investigated thermal stability of hen egg white lysozyme in aqueous solutions of the following stabilizing osmolytes: Glycine (GLY), N-methylglycine (NMG), N,N-dimethylglycine (DMG), N,N,N-trimethylglycine (TMG), and trimethyl-N-oxide (TMAO). Results of CD-UV spectroscopic investigation were compared...

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• Style Transfer for Detecting Vehicles with Thermal Camera

  Publication

  • S. Cygert
  • A. Czyżewski

  - Year 2019

  In this work we focus on nighttime vehicle detection for intelligent traffic monitoring from the thermal camera. To train a Convolutional Neural Network (CNN) detector we create a stylized version of COCO (Common Objects in Context) dataset using Style Transfer technique that imitates images obtained from thermal cameras. This new dataset is further used for fine-tuning of the model and as a result detection accuracy on images...

• Thermal properties of polyamide 6/polyurethane blends

  Publication

  • J. Haponiuk
  • A. Balas
  • J. Haponiuk

  - Journal of Thermal Analysis - Year 1995

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• Mask Detection and Classification in Thermal Face Images

  Publication

  • N. Kowalczyk
  • M. Sobotka
  • J. Rumiński

  - IEEE Access - Year 2023

  Face masks are recommended to reduce the transmission of many viruses, especially SARS-CoV-2. Therefore, the automatic detection of whether there is a mask on the face, what type of mask is worn, and how it is worn is an important research topic. In this work, the use of thermal imaging was considered to analyze the possibility of detecting (localizing) a mask on the face, as well as to check whether it is possible to classify...

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• Pedestrian detection in low-resolution thermal images

  Publication

  • A. Górska
  • P. Guzal
  • I. Namiotko
  • A. Wędołowska
  • M. Włoszczyńska
  • J. Rumiński

  - Year 2022

  Over one million people die in car accidents worldwide each year. A solution that will be able to reduce situations in which pedestrian safety is at risk has been sought for a long time. One of the techniques for detecting pedestrians on the road is the use of artificial intelligence in connection with thermal imaging. The purpose of this work was to design a system to assist the safety of people and car intelligence with the use...

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• Photoinduced and thermal oxidation of rapeseed and sunflower oils

  Publication

  • J. Gromadzka
  • W. Wardencki
  • R. Pawłowicz
  • G. Muszyński

  - EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY - Year 2010

  Celem prezentowanych badań było porównanie stabilności oksydatywnej olejów rzepakowych i słonecznikowych. Na etapie przyspieszania utleniania zastosowano promieniowanie UV. Po naświetlaniu lotne produkty utlenienia były izolowane z fazy nadpowierzchniowej przy pomocy mikroekstrakcji do fazy stacjonarnej HS-SPME(włókno DVB/CAR/PDMS) i oznaczane z zastosowaniem chromatografii gazowej z detektorem płomieniowo-jonizacyjnym (GC/FID)....

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• PVT - hybrid photovoltaic - thermal solar systems

  Publication

  • E. Klugmann-Radziemska

  - Year 2007

  PVT - to urządzenia, łączące ze sobą funkcje modułu fotowoltaicznego i kolektora słonecznego, w którym rolę absorbera pełni moduł ogniw fotowoltaicznych. Umożliwia to otrzymywanie z tej samej powierzchni pokrycia dachu lub fasady budynku uzyskiwanie jednocześnie energii elektrycznej i cieplnej. Uzyskiwane ciepło jest ciepłem niskotemperaturowym. Poszczególne rozwiązania systemów PVT można scharakteryzować ze względu na: różną liczbę...

• The effect of sludge thermal disintegration on quality of effluents

  Publication

  • R. Tomczak-Wandzel

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Year 2008

  Dezintegracja osadów ściekowych prowadzona jest w celach intensyfikacji procesu fermentacji metanowej oraz poprawy odwadnialności osadów ściekowych. Przedstawiono zmiany jakości cieczy nadosadowej osadów ściekowych poddanych procesowi termicznej dezintegracji. Określono zmiany wartości chemicznego zapotrzebowania na tlen oraz stężenia azotu amonowego, białka, fosforanów oraz lotnych kwasów tłuszczowych.

• Thermal analysis of bis(tetraethylammonium) tetrachloroferrate(II)

  Publication

  • E. Styczeń
  • A. Pattek-Jańczyk
  • M. Gazda
  • W. K. Jóźwiak
  • D. Wyrzykowski
  • Z. Warnke

  - THERMOCHIMICA ACTA - Year 2008

  Badano dekompozycję termiczną związków bis(tetraethylammonium) tetrachloroferrate(II). Stosowano następujące metody badawcze: TG-FTIR, TG-MS i DTA. Pomiary przeprowadzono w atmosferze obojętnej w zakresie temperatur od 293 K do 1073 K. Stałe produkty dekompozycji identyfikowano metodą spektroskopii w podczerwieni, spektroskopii Mössbauera oraz metodą dyfrakcji promieniowania rentgenowskiego. Przedyskutowano wpływ stopnia utlenienia...

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• Performance Analysis of A Photovoltaic-Thermal Integrated System

  Publication

  • E. Klugmann-Radziemska

  - INTERNATIONAL JOURNAL OF PHOTOENERGY - Year 2009

  W artykule przedstawiono analizę energetyczną i egzergetyczną układu zintegrowanego PV/T. Straty egzergii występują zawsze w układach, w których procesy zachodzą ze zmianą temperatury i są proporcjonalne do wzrostu entropii systemu. Analiza egzergetyczna pozwala zlokalizować miejsce, wielkość i źródło termodynamicznej nieefektywności i ta informacja, trudna do pozyskania w inny sposób (np. przez analizę energetyczną) jest przydatna...

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• Thermal-Humidity Parameters of 3D Printed Wall

  Publication

  • M. Kaszynka
  • N. Olczyk
  • M. Techman
  • S. Skibicki
  • A. Zielinski
  • K. Filipowicz
  • T. Wroblewski
  • M. Hoffmann

  - IOP Conference Series: Materials Science and Engineering - Year 2019

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• Impact of the medical clothing on the thermal stress of surgeons

  Publication

  • M. Zwolińska
  • A. Bogdan

  - Applied Ergonomics - Year 2012

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• Thermal and calorimetric investigations of titania–silica composites

  Publication

  • B. Charmas
  • J. Skubiszewska-Zięba
  • H. Waniak-Nowicka
  • B. Charmas

  - ADSORPTION SCIENCE & TECHNOLOGY - Year 2017

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• Intelligent thermal imaging camera with network interface

  Publication

  • K. Sielewicz
  • G. Kasprowicz
  • K. Poźniak
  • R. Romaniuk
  • R. S. Romaniuk

  - Year 2011

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