Search results for: thermal%20engineering

• The effect of laser on metal surfaces for multidisciplinary usage in material and thermal engineering

  Publication

  • E. Kozłowska

  - Year 2019

  The subject of heat transfer and cooling systems is still a matter of contention in many different fields of science and industry. Infrigidation is much more difficult than warming, and so, much more needed in more and more different devices, starting from massive industrial machinery and air conditioning in commercial buildings, up to micro and nano-surgery tools. In fact, the size of many cooling systems is still a problem. It...

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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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• 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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• 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...

• Environmental Degradation of Engineering Materials & Materials Engineering and Technologies

  Publication

  • J. Łabanowski
  • A. Zieliński

  - Solid State Phenomena - Year 2012

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• 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...

• 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...

• 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 2012

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• 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 2008

• 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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• 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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• 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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• Sacral sound-engineering

  Publication

  • G. Budzyński

  - Archives of Acoustics - Year 2011

  Organologic and campanologic acoustical problems due to applications to sacral objects are characterized on ground of numerous reviewed publications and engineering reports. Participations of several involved research centres, mostly Polish, at solving these problems are evaluated. Some desirable future developments are indicated. Appendices bring examples of documentation on selected investigated objects.

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• Thermal subjective sensations of motorcyclists

  Publication

  • M. Zwolińska

  - ACCIDENT ANALYSIS AND PREVENTION - Year 2013

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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...

• 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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• 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...

• Characterization of volatile compounds, structural, thermal and physico-mechanical properties of cross-linked polyethylene foams degraded thermo-mechanically at variable times

  Publication

  • K. Formela
  • M. Wołosiak
  • M. Klein
  • S. Wang

  - POLYMER DEGRADATION AND STABILITY - Year 2016

  Waste cross-linked polyethylene foam (wXLPE) was thermo-mechanically degraded at variable time using internal batch mixer. The progress of wXLPE degradation has been investigated by using a simultaneous thermogravimetric/differential scanning calorimetry analyzer coupled with Fourier transform infrared spectroscopy, swelling measurements, tensile tests and scanning electron microscopy. Volatile organic compounds generated during...

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• Ontology-Aided Software Engineering

  Publication

  • P. Kapłański

  - Year 2012

  This thesis is located between the fields of research on Artificial Intelligence (AI), Knowledge Representation and Reasoning (KRR), Computer-Aided Software Engineering (CASE) and Model Driven Engineering (MDE). The modern offspring of KRR - Description Logic (DL) [Baad03] is considered here as a formalization of the software engineering Methods & Tools. The bridge between the world of formal specification (governed by the mathematics)...

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• Ontological engineering versus metaphysics

  Publication

  • E. Tataj
  • R. Tomanek
  • J. Mulawka
  • R. S. Romaniuk

  - Year 2011

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• Photonics and Web Engineering 2011

  Publication

  • R. Romaniuk
  • R. S. Romaniuk

  - Kwartalnik Elektroniki i Telekomunikacji - Year 2011

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• Highway engineering risk assessment

  Publication

  • K. Jamroz

  - Archives of Transport - Year 2007

  Na drogach krajowych w Polsce rocznie ginie ponad 2000 osób w wypadkach drogowych, co stanowi ponad 37% ogółu ofiar śmiertelnych w wypadkach. Do poprawy stanu bezpieczeństwa na tych drogach muszą byc podjęte działania zmierzające do systematycznego dostosowania poszcz. odcinków dróg do standardów bezpieczeństwa. Jednym z narzędzi pomocnych do wyboru odcinków dróg o największym potencjale mozliwych do uratowania od śmierci uczestników...

• Jubilees of the engineering education in Gdańsk

  Publication

  • Z. Cywiński

  - Year 2005

  z perspektywy obecnej Politechniki Gdańskiej i nawiązując do jej niemieckiej poprzedniczki ukazano 100 lat uniwersyteckiej technicznej edukacji i nauki w Gdańsku z podkreśleniem tła niemiecko-polskich stosunków właściwych dla tego miejsca.

• Segmentation concept in mechanical engineering

  Publication

  • J. Wojciechowski
  • W. Przybylski

  - Year 2006

  Zaprezentowano nowoczesne podejście do rozwiązywania problemów technicznych, technologicznych i organizacyjnych przedsiębiorstwa w oparciu ich strukturyzację. Przedstawiono przykłady segmentcji w stosunku do przedmiotów obrabianych oraz struktur organizacyjnych przedsiębiorstwa.

• Management of changes in software engineering

  Publication

  • C. Orłowski

  - Year 2005

  Praca zawiera rozdział poświecony problematyce budowy systemów z bazami wiedzy dla wspomagania procesów zarządzania. W rozdziale tym przedstawiono metody budowy systemów dla potrzeb zarządzania koncentrując uwagę na systemach opartych na wiedzy. Następnie omówiono możliwości zastosowania teorii zbiorów rozmytych do modelowania wiedzy. Na zakończenie przedstawiono przykład wykorzystania zbiorów rozmytych i systemów opartych na wiedzy...

• Modelling of engineering materials with microstructure

  Publication

  • J. Tejchman

  - Year 2003

  Artykuł omawia różne modele do opisu lokalizacji odkształceń w postaci rys i stref ścinania w materiałach budowlanych takich jak grunt i beton. Zastosowane modele mechaniki ośrodka ciągłego i modele dyskretne.

• 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.

• The Role of Thermal Monitoring in Cardiosurgery Interventions

  Publication

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

  - Year 2012

• 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.

• 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.

• 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...

• 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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• 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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• 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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• Thermal degradation of poly(alkyl methacrylates)

  Publication

  • Z. Czech
  • R. S. Pełech

  - JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY - Year 2010

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• Advances of IR-Thermal Diagnostics in Medicine

  Publication

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

  - Year 2009

• 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.

• 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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• 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...

• 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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• Retrospecting Polish Audio Engineering Society Membership on 20th Anniversary of the Polish Section of the Audio Engineering Society

  Publication

  • B. Kostek
  • M. Sankiewicz

  - Archives of Acoustics - Year 2011

  In this article some key events concerning founding Polish Section of the Audio Engineering Society were presented. In addition, the history covering International Symposia on Sound Engineering and Mastering was outlined. Also, papers contained in this issue were shortly reviewed.

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• Virtual Engineering Object / Virtual Engineering Process: A specialized form of Cyber Physical System for Industrie 4.0

  Publication

  • S. I. Shafiq
  • C. Sanin
  • E. Szczerbicki
  • C. Toro

  - Procedia Computer Science - Year 2015

  This paper reviews the theories, parallels and variances between Virtual Engineering Object (VEO) / Virtual Engineering Process (VEP) and Cyber Physical System (CPS). VEO and VEP is an experience based knowledge representation of engineering objects and processes respectively. Cyber–physical systems (CPSs) are the next generation of engineered systems in which computing, communication, and control technologies are tightly integrated....

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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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• 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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• 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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