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Search results for: THERMAL CRACKING PROBABILITY
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Photochemical and thermal reaction of intermediates in the phenylnitrene rearangment inside a hemicarcerand
PublicationBroadband irradiation (λ > 320 nm) of hemicarceplex H1 between −74 °C and −84 °C, produces encapsulated didehydroazepine (2), triplet phenylnitrene (3PN), 2-azabicyclo[3.2.0]hepta-1,3,6-triene (6), and 4-azaspiro[2.4]hepta-1,4,6-triene (7). The highly strained anti-Bredt imine 6 is formed from 2 via a photochemical four-electron electrocyclization. Under the irradiation conditions, 6 rearranges further to azaspirene 7. In addition,...
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Thermal Barrier as a technique of indirect heating and cooling for residential buildings
PublicationW artykule zaprezentowano koncept pośredniego ogrzewania i chłodzenia budynków mieszkalnych promieniowaniem słonecznym zwany barierą termiczną. System składa się z polipropylenowych rurek umieszczonych w ścianach zewnętrznych, w których znajduje się płyn. Koncept jest zastosowany do stabilizacji i redukcji przepływu ciepła w kierunku prostopadłym do ścian. Wykonano obszerne obliczenia MES z zastosowaniem nowego systemu kontroli,...
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Thermal Fatigue Influence of Laser Treated Tool Steel Surface
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Lanthanide metal–organic frameworks: Structural, thermal and sorption properties
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Induction heating laboratory stand for estimating thermal properties of a charge
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Thermal decomposition of surface compounds for the generation of small quantities of acetaldehyde
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Generation of standard gaseous mixtures by thermal decomposition of surface compounds
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Characteristics of Specialised Firefighter Clothing Used in Poland – the Thermal Parameters
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Thermal, Mechanical, and Morphological Properties of DPU/Titanate Nanotubes Nanocomposites
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Thermal properties of dense polymer-derived SiCN(O) glasses
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Effect of thermal modifications of potato starch on its selected properties
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Thermal Transitions in P3HT:PC60BM Films Based on Electrical Resistance Measurements
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Thermal and optical properties of PMMA films reinforced with Nb2O5 nanoparticles
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The Investigation of Thermal and Optical Properties of Semiconducting Nanostructural Hybrid Films
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Harmful biological agents in municipal waste thermal treatment plants
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Design and evaluation of a flow-to-frequency converter circuit with thermal feedback
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Photoelectrochemical and thermal characterization of aromatic hydrocarbons substituted with a dicyanovinyl unit
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Advances of thermal tomography in non-destructive testing and medical diagnostics
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Digital Imaging and Communication in Medicine Standard for Breast Thermal Imaging
PublicationOmówiono znaczenie normy DICOM w obrazowaniu medycznym. Zaproponowano metodę opisu danych w diagnostyce terminczej piersi dla potrzeb normy DICOM. Zaprojektowano i wykonano algorytmy automatycznej konwersji danych oraz tworzenia struktur danych w hierarchiczno-obiektowym modelu danych.
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Computer-aided analysis of thermal convection near electric devices
PublicationObciążalność długotrwała urządzeń elektrycznych zależy od intensywności oddawania ciepła przez te urządzenia do otoczenia. Dla zwiększenia obciążalności długotrwałej urządzeń stosuje się konwekcję wymuszoną np. z wykorzystaniem wentylatorów. Wszechstronne obserwacje i analiza procesów konwekcji naturalnej wskazują, że jej intensyfikację można uzyskać dzięki umieszczaniu w pobliżu urządzenia oddającego ciepło elementów tworzących...
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The influence of different time duration of thermal processing on berries quality
PublicationOznaczano zawartość związków bioaktywnych (polifenole, flawonoidy, taniny, antocyjany i kwas askorbinowy) oraz poziom aktywności przeciwutleniającej próbek ekstraktów (wodnych, heksanowych i acetonowych) uzyskanych z różnych gatunków owoców jagodowych. Do pomiaru poziomu aktywności przeciwutleniającej wykorzystano takie testy jak ABTS, DPPH, FRAP i CUPRAC. Zbadano wpływ czasu trwania procesu obróbki termicznej na zawartość bioaktywnych...
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Thermal and Strength Properties of Lightweight Concretes with Variable Porosity Structures
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Thermal and strength properties of lightweight concretes with the addition of aerogel particles
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Thermal performance of Si and GaAs based solar cells and modules.
PublicationPraca przedstawia aktualny stan wiedzy na temat wpływu temperatury na parametry pracy ogniw i modułów fotowoltaicznych z amorficznego krzemu i GaAs. Przedstawiono ogólna analizę rezultatów zastosowania modułów fotowoltaicznych w budownictwie ze szczególnym uwzględnieniem systemów hybrydowych, przekształcających energie słoneczną w prąd elektryczny i ciepło.
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Thermal imaging of skin burns. 9th European Congress of Thermology.
PublicationArtykuł przedstawia wyniki badań in-vivo diagnostyki oparzeń skóry z użyciem metod termograficznych. Wykazano iż na podstawie obrazu termograficznego możliwa jest klasyfikacja głębokości oparzenia.
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LSCO films for bolometer applications manufactureted without thermal processing.
PublicationPrzedstawiono proces produkcji warstw LSCO przeznaczonych na bolometry IR wykonane technologią nie wymagającą obróbki termicznej.
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Thermal Energy Storage with PCMs in Shell-and-Tube Units: A Review
PublicationThe paper presents a survey of the experimental and numerical studies of shell-and-tube systems in which phase change material (PCM) is used. Due to the multitude of design solutions for shell-and-tube systems, the emphasis is placed on double-tube (DT), triplex-tube (TT), and multitube (MT) units. Additionally, only single-pass systems are considered. Particular attention is paid to the method of heat transfer intensification....
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Thermal and Electrical Characterization of the Carbon Nanofibers Based Cement Composites
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Processing, physico-mechanical and thermal properties of reclaimed GTR and NBR/reclaimed GTR blends as function of various additives
PublicationIn this work, ground tire rubber (GTR) was mechano-chemically reclaimed in the presence of bitumen and various additives. During studies three types of processing and curing additives: (i) peptizer P300; (ii) vulcanization accelerator tetramethylthiuram disulfide (TMTD) and (iii) organic peroxide di(2-tert-butyl-peroxyisopropyl)benzene (BIB1) were applied to enhance reclaiming of GTR. Reclaiming process was evaluated by oscillating...
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Thermal Transitions and Structural Characteristics of Poly(3,4-ethylenedioxythiophene/cucurbit[7]uril) Polypseudorotaxane and Polyrotaxane Thin Films
PublicationHerein, we report the thermal transitions and structural properties of poly(3,4-ethylenedioxythiophene/cucurbit[7]uril) pseudopolyrotaxane (PEDOT∙CB7-PS) and polyrotaxane (PEDOT∙CB7-PR) thin films compared with those of pristine PEDOT. The structural characteristics were investigated by using variable-temperature spectroscopic ellipsometry (VTSE), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and atomic force...
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Equivalence of equicontinuity concepts for Markov operators derived from a Schur-like property for spaces of measures
PublicationVarious equicontinuity properties for families of Markov operators have been – and still are – used in the study of existence and uniqueness of invariant probability for these operators, and of asymptotic stability. We prove a general result on equivalence of equicontinuity concepts. It allows comparing results in the literature and switching from one view on equicontinuity to another, which is technically convenient in proofs....
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Real-Time Facial Features Detection from Low Resolution Thermal Images with Deep Classification Models
PublicationDeep networks have already shown a spectacular success for object classification and detection for various applications from everyday use cases to advanced medical problems. The main advantage of the classification models over the detection models is less time and effort needed for dataset preparation, because classification networks do not require bounding box annotations, but labels at the image level only. Yet, after passing...
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Sustainable synthesis of cyclic carbonates from bio‐based polyether polyol: the structure characterization, rheological behaviour and thermal properties
PublicationThe cycloaddition of CO2 to epoxides represents a green efficient method to form bis(cyclic carbonate)s. The main purpose of the work reported in this paper was to examine the effect of the gas flow rate (20, 40, 60 and 100 mL min–1) during carbonation on the conversion yield, chemical structure, rheological behaviour and thermal properties of the prepared compounds. A series of new bis(cyclic carbonate)s was obtained from bio‐based...
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Recurrent Neural Network Based Adaptive Variable-Order Fractional PID Controller for Small Modular Reactor Thermal Power Control
PublicationThis paper presents the synthesis of an adaptive PID type controller in which the variable-order fractional operators are used. Due to the implementation difficulties of fractional order operators, both with a fixed and variable order, on digital control platforms caused by the requirement of infinite memory resources, the fractional operators that are part of the discussed controller were approximated by recurrent neural networks...
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Stress-driven nonlocal elasticity for nonlinear vibration characteristics of carbon/boron-nitride hetero-nanotube subject to magneto-thermal environment
PublicationStress-driven nonlocal theory of elasticity, in its differential form, is applied to investigate the nonlinear vibrational characteristics of a hetero-nanotube in magneto-thermal environment with the help of finite element method. In order to more precisely deal with the dynamic behavior of size-dependent nanotubes, a two-node beam element with six degrees-of freedom including the nodal values of the deflection, slope and curvature...
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Thermal Stability of Multicomponent Layers Created with the Hybrid Method on Aluminium Base
PublicationW pracy przedstawiono skład fazowy, mikrostrukturę oraz graficzny i matematyczny opis kinetyki utleniania wieloskładnikowych warstw powierzchniowych wytworzonych na aluminiowym podłożu.
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Effect of Thermal Processing on Antioxidant Activity and Cytotoxicity of Waste Potato Juice
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Storing thermal energy from solar collectors for the needs of a detached house
PublicationThis work evaluates the possibility of meeting a single familu household's need for hot water and heat year round, using solar collectors as the sole energy sourse. The main flaw of energetic systems based on solar energy is that the energy supply is usually insufficient in winter, when it is most needed. This work is going to show thatm for a house surface of 150 m2 and base dimension of 10x10m, it is possible to supply sufficient...
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Evaluation of Thermal Stresses in Asphalt Layers Incomparison with TSRST Test Results
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Selected thermal and flow issues in a reversed thermosiphon with a steam liquid lifter
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New components for hydraulic drive systems and their performance in thermal shock conditions
PublicationArtykuł prezentuje konstrukcję pomp z rozrządem krzywkowym typu PWK o zmiennej wydajności wraz ze wstępnymi wynikami badań prototypu PWKZ-78. Przedstawiono także wstępne wyniki analiz MES i CFD zjawisk zachodzących w pracującej pompie. W drugiej części zaprezentowano metodykę badań zachowania się pomp w warunkach szokutermicznego i wyniki uzyskane dla pompy typu PWK.
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The stand for determining of thermal‐electrical material properties of induction heated charge
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Influence of Air Velocity on the Total Thermal Insulation of Different Types of Clothing
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CARBOCHAIN POLYMER-GLUCOSE HYBRIDS: SYNTHESIS, THERMAL/MECHANICAL PROPERTIES AND BIODEGRADABILITY
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Structural, thermal and photocatalytic properties of composite materials SiO2/TiO2/C
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The influence of thermal conditions on V2O5 nanostructures prepared by sol-gel method
PublicationThis work presents the result of structure investigations ofV 2O5 nanorods grown from thin films and powders prepared by sol-gel method. To examine the best temperature of nanorods crystallization, thin films deposited by spin-coating method on quartz glass or silicon substrates and bulk xerogel powders were annealed at various temperatures ranging from 100∘C to 600∘C. The structure of the samples was characterized by X-ray diffraction...
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Synergistic effect of nickel formate on the thermal and flame-retardant properties of polypropylene
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Thermal crosslinking of silicone pressure-sensitive adhesives using organic peroxides
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Amine-Based Ionic Liquid for CO2 Capture and Electrochemical or Thermal Regeneration
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Surface and thermal properties of collagen/hyaluronic acid blends containing chitosan
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