Search results for: exhaust gas temperature

Celem pracy było określenie przeżywalności wybranych gramujemnych bakterii na działanie wysokiego ciśnienia i ujemnej temperatury. Traktowanie komórek bakterii ciśnieniem 193 MPa w temperaturze -20C przez 24 godziny, powodowało całkowitą inaktywację bakterii E. coli, P. fluorescens i T. thermophilus. Po działaniu ciśnienia przez krótszy czas występowały różnice we wrażliwości między badanymi szczepami. Najmniej odporny na działanie...

Temperature effect on the current-voltage characteristic fill factor for the silicon solar cells

Publication

E. Klugmann-Radziemska

- Year 2004

W pracy przedstawiono badania wpływu temperatury pracy krzemowych ogniw fotowoltaicznych na wartość współczynnika wypełnienia charakterystyki prądowo- napięciowej (FF). Efekty dyfuzyjne w obszarze złącza oraz rekombinacja nośników ładunku ograniczają wartość współczynnika wypełnienia charakterystyki. Spadek tej wartości wynika głównie ze wzrostu wartości rezystancji szeregowej rs. Na rezystancję szeregową składają się: opór emitera...

Comparison of different advanced oxidation processes for the degradation of room temperature ionic liquids

Publication

P. Stepnowski
A. Zaleska-Medynska

- Year 2005

Zbadano możliwość zastosowania wybranych zaawansowanych technologii utleniania (UV, UV/H2O2, UV/TiO2) do degradacji cieczy jonowych. Do degradacji wytypowano pięć związków: HHiM, BMiM, MiM, OMiM oraz EEiM.

Optimization of white light interferometric temperature sensor. Workshop on Atomic and Molecular Physics.

Publication

- Proceedings of SPIE - Year 2003

W artykule przedstawiono metodę optymalizacji parametrów niskokoherencyjnego interferometrycznego czujnika temperatury wykorzystującego miniaturowy interferometr Farby Perota, pracujący w modzie odbiciowym.

In plane and out of plane temperature dependencies of the resistivity insingle crystals and films of Nd2CuO4.

Publication

T. Charikova
A. Ignatenkov
A. Ponomarev
A. Ivanov
T. Klimczuk
W. Sadowski

- PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS - Year 2003

W pracy przedstawiono temperaturową zależność oporu elektrycznego kryształów i cienkich warstw związku Nd2CuO4. Dyskutowany jest wpływ temperatury i atmosfery dodatkowej obróbki termicznej na własności transportowe.

The effect of temperature during soybean oil hydrogenation on nickel catalyst poisoning by phospholipids.

Publication

E. Szukalska

- Polish Journal of Food and Nutrition Sciences - Year 2003

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Low-Temperature Exfoliated Graphenes: Vacuum-Promoted Exfoliation and Electrochemical Energy Storage

Publication

W. Lv
D. Tang
Y. He
C. You
Z. Shi
X. Chen
C. Chen
P. Hou
C. Liu
Q. Yang
X. Chen

- ACS NANO - Year 2009

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The influence of the substrate temperature on the preparation of DNA films for studies under vacuum conditions

Publication

M. A. Śmiałek
N. C. Jones
R. Balog
N. J. Mason
D. Field

- EUROPEAN PHYSICAL JOURNAL D - Year 2011

Przeanalizowano wpływ temperatury na formowanie warstw DNA. Sprawdzono wpływ stabilizatorów na jakość otrzymanych próbek. Stwierdzono, że optymalnymi warunkami przygotowywania filmów do badań w warunkach próżniowych jest - 10 st. C przy minimalnej zawartości NaOH.

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Effect of temperature and gaseous medium on the structure and microhardness of the cobalt base clad layers

Publication

H. Smoleńska

- CHEMICKE LISTY - Year 2010

Badano wpływ temperatury utleniania na mikrostrukturę i mikrotwardość napawanych warstw ze stopu kobaltu. Warstwy wytwarzano za pomocą napawania plazmowego (pta) na przylgniach zaworów wylotowych wykonanych ze stali x40CrSiMo10-2. Stop kobaltu był poddany utlenianiu w powietrzu w temperaturach od 750 °C to 1100 °C i w gazach wylotowych w temperaturze 750 °C. W wyniku utleniania zaobserwowano zmanę w mikrotwardości warstw. W zewnętrznej...

Recuperator with microjet technology as a proposal for heat recovery from low-temperature sources

Publication

J. Wajs
D. Mikielewicz
E. Fornalik-Wajs
M. Bajor

- Archives of Thermodynamics - Year 2015

A tendency to increase the importance of so called dispersed generation, based on the local energy sources and the working systems uti- lizing both the fossil fuels and the renewable energy resources is observed nowadays. Generation of electricity on industrial or domestic scale together with production of heat can be obtained for example through employment of the ORC systems. It is mentioned in the EU directive 2012/27/EU for...

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Influence of Firing Temperature on Phase Composition and Color Properties of Ceramic Tile Bodies

Publication

K. Wiśniewska
W. Pichór
E. Kłosek-Wawrzyn

- Materials - Year 2021

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The effect of elevated temperature on the properties of cement mortars containing nanosilica and heavyweight aggregates

Publication

E. Horszczaruk
P. Sikora
K. Cendrowski
E. Mijowska

- Construction and Building Materials - Year 2017

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The effect of nanomaterials on thermal resistance of cement-based composites exposed to elevated temperature

Publication

E. Mijowska
E. Horszczaruk
P. Sikora
K. Cendrowski

- Materials Today: Proceedings - Year 2018

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Mechanical Properties and Strength Reliability of Impregnated Wood after High Temperature Conditions

Publication

K. Przystupa
D. Pieniak
W. Samociuk
A. Walczak
G. Bartnik
R. Kamocka-Bronisz
M. Sutuła

- Materials - Year 2020

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Effect of brookite on the photocatalytic properties of mixed-phase TiO2 obtained at a higher temperature

Publication

P. Szołdra
M. Frąc
R. Lach
Ł. Zych
M. Radecka
A. Trenczek-Zając
W. Pichór

- Materials Science and Engineering: B - Year 2023

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Long-term air temperature variation in the Karkonosze mountains according to atmospheric circulation

Publication

K. Migała
G. Urban
K. Tomczyński

- THEORETICAL AND APPLIED CLIMATOLOGY - Year 2016

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Recuperator with microjet technology as a proposal for heat recovery from low-temperature sources

Publication

J. Wajs
D. Mikielewicz
E. Fornalik-Wajs
M. Bajor

- Year 2015

A tendency to increase the importance of so called dispersed generation, based on the local energy sources and the working systems utilizing both the fossil fuels and the renewable energy resources is observed nowadays. Generation of electricity on industrial or domestic scale together with production of heat can be obtained for example through employment of the ORC systems. It is mentioned in the EU directive 2012/27/EU for cogenerative...

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Pre-oxidation of porous ferritic Fe22Cr alloys for lifespan extension at high-temperature

Publication

D. Koszelow
M. Makowska
F. Marone
G. Cempura
M. Tomas
J. Froitzheim
S. Molin

- CORROSION SCIENCE - Year 2024

Pre-oxidation of porous ferritic Fe22Cr alloys was extensively studied in this paper. Weight gain measurements and SEM analysis revealed that pre-oxidation performed at 900◦C for 40 min increased the lifespan of the alloy. A Cr evaporation study did not disclose any significant influence of the pre-oxidation process on the Cr content in the alloy. For a more detailed assessment, TEM imaging and X-ray tomography measurements of...

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Simultaneous analysis of non-steroidal anti-inflammatory drugs and estrogenic hormones in water and wastewater samples using gas chromatography–mass spectrometry and gas chromatography with electron capture detection

Publication

N. Migowska
M. Caban
P. Stepnowski
J. Kumirska

- Science of The Total Environment - Year 2012

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Application of gas flow headspace liquid phase micro extraction coupled with gas chromatography-mass spectrometry for determination of 4-methylimidazole in food samples employing experimental design optimization

Publication

M. Rafiei
A. Nezhadali
M. Kaykhaii

- BMC Chemistry - Year 2022

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Physicochemical properties of Mn1.45Co1.45Cu0.1O4 spinel coating deposited on the Crofer 22 H ferritic steel and exposed to high-temperature oxidation under thermal cycling conditions

Publication

Ł. Mazur
S. Molin
J. Dąbek
K. Durczak
M. Pyzalski
T. Brylewski

- JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY - Year 2022

The Crofer 22 H ferritic steel substrate was coated with an Mn1.45Co1.45Cu0.1O4 spinel by means of electrophoresis. After high-temperature oxidation under thermal cycling conditions, the physicochemical properties of the obtained system were evaluated. During 48-h cycles that involved heating the samples up to temperatures of either 750 or 800 °C, the oxidation kinetics of both coated and unmodified steel approximately obeyed...

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Techno-economic evaluation of combined cycle gas turbine and a diabatic compressed air energy storage integration concept

Publication

S. Kruk-Gotzman
I. Iliev
G. Negreanu
J. Badur
P. Ziółkowski

- ENERGY - Year 2023

More and more operational flexibility is required from conventional power plants due to the increasing share of weather-dependent renewable energy sources (RES) generation in the power system. One way to increase power plant’s flexibility is integrating it with energy storage. The energy storage facility can be used to minimize ramping or shutdowns and therefore should lower overall generating costs and CO2 emissions. In this article,...

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A rapid dispersive liquid–liquid microextraction of antimicrobial onion organosulfur compounds in animal feed coupled to gas chromatography-mass spectrometry

Publication

M. Pastor-belda
N. Arroyo-manzanares
K. Yavir
P. Abad
N. Campillo
M. Hernandez-Cordoba
P. Vinas

- Analytical Methods - Year 2020

A rapid analytical procedure is proposed for determining two antimicrobial onion organosulfur compounds, propyl disulfide (PDS) and propyl propane thiosulfonate (PTSO), in animal feed. The use of PTSO as a natural ingredient in animal feed is allowed due to its antimicrobial activity against pathogenic organisms. Two analytical methodologies using gas chromatography coupled to mass spectrometry (GC-MS) are compared. After the extraction...

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Various types of semiconductor photocatalysts modified by CdTe QDs and Pt NPs for toluene photooxidation in the gas phase under visible light

Publication

M. Marchelek
E. Grabowska
T. Klimczuk
W. Lisowski
A. Zaleska-Medynska

- APPLIED SURFACE SCIENCE - Year 2017

A novel synthesis process was used to prepare TiO2 microspheres, TiO2 P-25, SrTiO3 and KTaO3 decorated by CdTe QDs and/or Pt NPs. The effect of semiconductor matrix, presence of CdTe QDs and/or Pt NPs on the semiconductor surface as well as deposition technique of Pt NPs (photodeposition or radiolysis) on the photocatalytic activity were investigated. The as-prepared samples were characterized by X-ray powder diffractometry (XRD),...

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Synergistic effects of a swirl generator and MXene/ water nanofluids used in a heat exchanger pipe of a negative CO2 emission gas power plant

Publication

- NUMERICAL HEAT TRANSFER PART A-APPLICATIONS - Year 2024

focus on optimizing heat exchangers contributes to improved temperature control mechanisms, ensuring the sustainable operation of innovative power plants working towards negative CO2 emissions. In the realm of oxy-combustion within Negative CO2 Emission Power Plants (nCO2PP), the temperature of combustion products surpasses 3000 (K). Addressing this challenge, the imperative arises to reduce these elevated temperatures to a manageable...

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Capillary gas chromatography using a -cyclodextrin forenantiomeric separation of methylamphetamine, its precursors andchloro intermediates after optimization of the derivatization reaction

Publication

J. Płotka-Wasylka
V. Simeonov
C. Morrison
M. Biziuk
J. Namieśnik

- JOURNAL OF CHROMATOGRAPHY A - Year 2014

tThe enantiomeric ratio of methylamphetamine (MAMP) is closely related to the optical activity of precur-sors and reagents used for the synthesis and this knowledge can provide useful information concerningthe origins and synthetic methods used for illicit manufacture. The information can be utilized for reg-ulation of the precursors and investigation of the manufacturing sources but this requires analyticalprocedures to determine...

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A rapid and sensitive method for the quantitative analysis of ibuprofen and its metabolites in equine urine samples by gas chromatography-tandem mass spectrometry

Publication

E. Waraksa
M. K. Woźniak
E. Kłodzińska
R. Wrzesień
B. Bobrowska-Korczak
J. Namieśnik

- JOURNAL OF SEPARATION SCIENCE - Year 2018

Ibuprofen is widely used in human and veterinary medicine for the treatment of chronic pain as well as rheumatic and musculoskeletal disorders. However, t he anal- gesic and anti-inﬂammatory properties of Ibuprofen have contributed to frequent drug abuse in equestr ian s ports. A sensitive and rapid gas chromatography with tandem mass spectrometry based method with a simple liquid-liquid extraction and deriva- tization requiring...

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Method for the determination of carboxylic acids in industrial effluents using dispersive liquid-liquid microextraction with injection port derivatization gas chromatography–mass spectrometry

Publication

- JOURNAL OF CHROMATOGRAPHY A - Year 2017

The paper presents a new method for the determination of 15 carboxylic acids in samples of postoxidative effluents from the production of petroleum bitumens using ion-pair dispersive liquid-liquid microextraction and gas chromatography coupled to mass spectrometry with injection port derivatization. Several parameters related to the extraction and derivatization efficiency were optimized. Under optimized experimental conditions,the...

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The Verification of the Usefulness of Electronic Nose Based on Ultra-Fast Gas Chromatography and Four Different Chemometric Methods for Rapid Analysis of Spirit Beverages

Publication

- Journal of Analytical Methods in Chemistry - Year 2016

Spirit beverages are a diverse group of foodstuffs. They are very often counterfeited which cause the appearance of low quality products or wrongly labelled products on the market. It is important to find a proper quality control and botanical origin method enabling the same time preliminary check of the composition of investigated samples, which was the main goal of this work. For this purpose, the usefulness of electronic nose...

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Characterization of diatomaceous earth coated with nitrated asphaltenes as superior adsorbent for removal of VOCs from gas phase in fixed bed column

Publication

- CHEMICAL ENGINEERING JOURNAL - Year 2022

Asphaltenes isolated from bitumen possess unusual adsorption characteristics that can be further enhanced by chemical modifications to promote interactions with VOCs’. Herein, nitrated asphaltenes are used as an active layer coated on a surface of a diatomaceous earth, in order to prepare an efficient adsorbent (AsfNitro). Breakthrough experiments with benzene, pyridine, and 1-nitropropane revealed significant increase in adsorption...

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First deep eutectic solvent-based (DES) stationary phase for gas chromatography and future perspectives for DES application in separation techniques

Publication

- JOURNAL OF CHROMATOGRAPHY A - Year 2021

The paper presents the first application of deep eutectic solvents (DES) as stationary phases for gas chromatography. DES obtained by mixing tetrabutylammonium chloride (TBAC) as a hydrogen bond acceptor (HBA) with heptadecanoic acid being a hydrogen bond donor (HBD) in a mole ratio of HBA:HBD equal to 1:2 was characterized by its ability to separate volatile organic compounds (VOCs). The Rohrschneider – McReynolds constants determined...

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The effect of aeration mode (intermittent vs. continuous) on nutrient removal and greenhouse gas emissions in the wastewater treatment plant of Corleone (Italy)

Publication

G. Mannina
P. M. B. Mofatto
A. Cosenza
D. Trapani Di
H. Gulhan
A. Mineo
J. Mąkinia

- SCIENCE OF THE TOTAL ENVIRONMENT - Year 2024

The paper reports the results of an experimental study aimed at comparing two configurations of a full-scale wastewater treatment plant (WWTP): conventional activated sludge (CAS) and oxic-settling-anaerobic process (OSA) with intermittent aeration (IA). A comprehensive monitoring campaign was carried out to assess multiple parameters for comparing the two configurations: carbon and nutrient removal, greenhouse gas emissions, respirometric...

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Studies on origin of Polish honeys by two-dimensional gas chromatography Ocena pochodzenia surowcowego polskich miodów przy użyciu dwuwymiarowej chromatografii gazowej

Publication

- Przemysł Chemiczny - Year 2014

Polish acacia, linden, rapessed and buckwheat-derived honeys and a honydew were analysed for presence of hydrocarbons, alcs., ketones and esters by 2-dimensional gas chromatog. to establish the markers for the honey origin. PrOH was found characteristic for acacia honey, Me(CH2)11OH for linden honey, Me(CH2)6CHOMe for honeydew and Me(CH2)8COOEt for the rapeseed honey. Wykorzystano technikę dwuwymiarowej chromatografii gazowej sprzężonej...