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Search results for: VEGETABLE DERIVED-OIL
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Identification and characterization of the Indian Yellow dyestuff and its degradation products in historical oil paint tube by liquid chromatography mass spectrometry
PublicationAn analytical protocol for identification of dyes using reversed phase liquid chromatography-mass spectrometry with atmospheric pressure electrospray ionization (LC-ESI/MS) is presented. The developed method has been successfully applied in identification of euxanthic acid and euxanthone, the main components of the Indian Yellow dye in a historical oil paint tube produced by Richard Ain`es, a recognizable French company supplying...
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Ground tire rubber thermo-mechanically devulcanized in the presence of waste engine oil as asphalt modifier
PublicationCross-linked elastomers network is main limitation for industrial usage of ground tire rubber (GTR) as asphalts’ and road pavements modifier. GTR was thermo-mechanically devulcanized via extrusion in the presence of waste engine oil (WEO) at temperature ranges from 150 to 280 °C. Combined impact of WEO content and extruder barrel temperature on the change of cross-linked structure of degraded GTR (DTGR) was investigated through...
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Novel chalcone-derived pyrazoles as potential therapeutic agents for the treatment of non-small cell lung cancer
PublicationLung cancer is considered to account for approximately one-fifth of all malignant tumor-related deaths worldwide and is therefore one of the most lethal malignancies. Pyrazole scaffold possesses a wide range of biological and pharmacological activities, which play important roles in medicinal chemistry. The present study reports the synthesis and in vitro biological characterization of nine pyrazoles derived from chalcones as potential...
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An updated method identifying collision-prone locations for ships. A case study for oil tankers navigating in the Gulf of Finland
PublicationTo ensure the risk level associated with continuously increasing maritime traffic through particularly sensitive sea areas remains at acceptable level, a periodic risk assessment needs to be carried out by the relevant authorities. As a part of such assessment, allowing for proactive countermeasures to mitigate risk, the frequency of accidents is estimated along with the assessment of geographical locations where the accidents...
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Briefing: Liquefaction potential of oil-contaminated silty sands
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Membrane Distillation of Saline Water Contaminated with Oil and Surfactants
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The application of membrane distillation for the concentration of oil-water emulsions
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Studies of Exfoliated Graphite (EG) for Heavy Oil Sorption
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Stability of oil/water (ethanol, lysozyme or lysine) emulsions
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Environmental Implications of Oil Spills from Shipping Accidents
PublicationWzrost znaczenia ropy naftowej w XX wieku i w związku z tym, zwiększenie się światowej floty tankowców zwróciły uwagę na negatywne skutki transportu morskiego. Katastrofy z udziałem tankowców pokazały, jak dramatyczne w skutkach mogą być wycieki produktów ropopochodnych z uszkodzonych lub zatopionych jednostek. Skutki wycieku ropy na morzu zależą od wielu czynników, takich jak parametry fizyko-chemiczne paliwa, charakterystyka...
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The rheological properties of hydroxylated soybean oil by using bioglycols
PublicationPraca zawiera opis właściwości fizykochemicznych i reologicznych hydroksylowanych olejów sojowych zmodyfikownych przy użyciu wybranych bioglikoli.
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Predicting Risk of Collision for Oil Tankers in the Gulf of Finland
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Thymus vulgaris Essential Oil and Its Biological Activity
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Basic properties of oil from pyrplysis of scrap tires
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Flow boiling of oil-refrigerant mixtures in smooth tubes
PublicationPrzedstawiono wyniki badań współczynnika przejmowania ciepła i spadku ciśnienia podczas wrzenia czynników R 22, R 134a i R 407C i ich mieszanin z olejem w rurach gładkich. Opisano procedurę badawczą. Udział masowy oleju w mieszaninie z czynnikiem wynosił 0,1% i 5%. Zaobserwowano negatywny wpływ obecności środka smarnego we wrzącym czynniku chłodniczym.
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Biodegradability of simulant fluids and crude oil in aquatic environment
PublicationBiodegradowalność symulantów płynów była oceniana poprzez pomiar CO2 (EPA 560/6-82-003). Badaniu poddawane były emulsyjne i nieemulsyjne symulanty ropy oraz lekka ropa naftowa typu A z Północnej Ameryki. Uzyskane wyniki wskazują na łatwą biodegradowalność obu symulantów w porównaniu do badanej ropy naftowej.
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A Highly Selective Biosensor Based on Peptide Directly Derived from the HarmOBP7 Aldehyde Binding Site
PublicationThis paper presents the results of research on determining the optimal length of a peptide chain to eectively bind octanal molecules. Peptides that map the aldehyde binding site in HarmOBP7 were immobilized on piezoelectric transducers. Based on computational studies, four Odorant Binding Protein-derived Peptides (OBPPs) with dierent sequences were selected. Molecular modelling results of ligand docking with selected peptides were...
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Towards a modification of a regulatory framework aiming at bunker oil spill prevention from ships - A design aspect of bunker tanks vents location guided by CFD simulations
PublicationAlthough accidental bunker oil spills at seaway are relatively rare events, they can be pose real threat to the natural marine environment. One of the reasons for the bunker spill to occur is a design failure; one of the ways it can demonstrate is an improper location or height of vent heads, leading to a bunker oil discharge during heavy rolling, due to sloshing phenomenon. Design of a ship and her systems is guided by various...
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Elicitation strategies for the improvement of essential oil content in Rhododendron tomentosum (Ledum palustre) bioreactor-grown microshoots
PublicationRhododendron tomentosum Harmaja, previously Ledum palustre L., is a fragrant plant growing in swampy areas, which is characterized by well-known repellent properties and the anti-arthritic potential. In the present study, R. tomentosum microshoots cultivated in RITA® bioreactor, providing the alternative, environment-independent source of the valuable essential oil, were treated for 7 days with copper and nickel salts, methyl jasmonate,...
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Bio-Based Polyurethane Networks Derived from Liquefied Sawdust
PublicationThe utilization of forestry waste resources in the production of polyurethane resins is a promising green alternative to the use of unsustainable resources. Liquefaction of wood-based biomass gives polyols with properties depending on the reagents used. In this article, the liquefaction of forestry wastes, including sawdust, in solvents such as glycerol and polyethylene glycol was investigated. The liquefaction process was carried...
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Thermal properties of dense polymer-derived SiCN(O) glasses
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Correction: MOF-5 derived carbon as material for CO2 adsorption
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Recent Progress in Polymer Waste-Derived Porous Carbon for Supercapacitors
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GPS-derived height changes in diurnal and sub-diurnal timescales
PublicationThis paper describes the research concerning precise short-time GPS solutions conducted in the Centre of Applied Geomatics, Military University of Technology, Warsaw, Poland. The data from ASG-EUPOS (Polish Active Geodetic Network) was processed using Bernese 5.0 software and EPN (EUREF Permanent Network) standards and models. In this study, the adapted 3-hour observation window is shifted every hour for obtaining hourly geocentric...
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Ionic hydration behavior derived from infrared spectra in HDO
PublicationNa podstawie widm HDO w zakresie podczerwieni scharakteryzowano hydratacjejonów o różnym charakterze. Zastosowana analiza danych widmowych opierała się na metodzie widm różnicowych. Wyniki prowadzą do wniosku, że kationy i aniony wywierają jakościowo bardzo różny wpływ na strukturę wody. Energia wiązań wodorowych cząsteczek wody oddziaływającej z anionem zmienia się proporcjonalnie z siłą polaryzującą anionów. W przeciwieństwie...
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Raman investigation of sol-gel-derived hybrid polymers for optoelectronics
PublicationPrzedstawiono wykorzystanie spektroskopii ramanowskiej do kompleksowej diagnostyki polimerów hybrydowych stosowanych w optoelektronice. Zbadano efektywność kolejnych etapów procesu technologicznego: od monomerów do etapu produktu finalnego - cienkich warstw.
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In Vitro Studies on Nanoporous, Nanotubular and Nanosponge-Like Titania Coatings, with the Use of Adipose-Derived Stem Cells
PublicationIn vitro biological research on a group of amorphous titania coatings of different nanoarchitectures (nanoporous, nanotubular, and nanosponge-like) produced on the surface of Ti6Al4V alloy samples have been carried out, aimed at assessing their ability to interact with adipose-derived mesenchymal stem cells (ADSCs) and affect their activity. The attention has been drawn to the influence of surface coating architecture and its physicochemical...
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Comparison of the powers of energy losses in a variable capacity displacement pump determined without or with taking into account the power of hydraulic oil compression
PublicationPowers of energy losses in a variable capacity displacement pump are compared with or without taking into account the power of hydraulic oil compression. Evaluation of power of liquid compression in the pump was made possible by the use of method, proposed by the Author, of determining the degree of liquid aeration in the pump. In the method of determining the liquid aeration in the pump and of powers of volumetric losses of liquid...
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Assessment of Failure Occurrence Rate for Concrete Machine Foundations Used in Gas and Oil Industry by Machine Learning
PublicationConcrete machine foundations are structures that transfer loads from machines in operation to the ground. The design of such foundations requires a careful analysis of the static and dynamic effects caused by machine exploitation. There are also other substantial differences between ordinary concrete foundations and machine foundations, of which the main one is that machine foundations are separated from the building structure....
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Preparation, characterization and antimicrobial activity of polyvinyl alcohol/gum arabic/chitosan composite films incorporated with black pepper essential oil and ginger essential oil
PublicationIn this study, biocomposite films based on polyvinyl alcohol (PVA), gum arabic (GA) and chitosan (CS) incorporated with BPEO and GEO were fabricated by solvent casting method. FTIR, XRD, SEM and DSC were performed with mechanical and antimicrobial properties of PVA/GA/CS films with and without BPEO and GEO. The BPEO and GEO incorporated PVA/GA/CS films were significantly inhibited the growth of Bacillus cereus, Staphylococcus aureus,...
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Preparation, characterization and antimicrobial activity of polyvinyl alcohol/gum arabic/chitosan composite films incorporated with black pepper essential oil and ginger essential oil
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Optimized photodegradation of palm oil agroindustry waste effluent using multivalent manganese–modified black titanium dioxide
PublicationThis article presents a methodological approach to use manganese (Mn3+Mn7+)-modified black titanium dioxide (Mn/BTiO2) as a photocatalyst to optimize and improve visible-light-driven photodegradation of treated agro-industrial effluent (TPOME). A modified wet chemical process was used to prepare BTiO2. The BTiO2 was then wet impregnated with Mn and calcined at 300 °C for 1 h to produce Mn/BTiO2. The activity of Mn/BTiO2 was investigated...
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Concrete corrosion against penetration of mineral oil application of impregnants
PublicationOleje stanowią związki organiczne, w skład których wchodzą kwasy tłuszczowe nasycone i nienasycone oraz gliceryny różnego rodzaju. W zależności od rodzaju i właściwości olejów agresywność ich w stosunku do betonu jest różna. Olej izoluje dostęp wody do składników betonu, dlatego nie następuje dalsza hydratacja i przyrost wytrzymałości. Przesycenie betonu olejami powoduje wskutek obniżenia tarcia wewnętrznego tworzywa obniżenie...
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Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation
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AE testing of local corrosion in storage tanks of oil tankers
PublicationW artykule przedstawiono wyniki badań korozji lokalnej w zbiornikach magazynowych zbiornikowców, przy użyciu metody Emisji Akustycznej. Badania wykrywania korozji wykonano z użyciem testerów, podczas produkcji których przyjęto założenie wysokiej intensywności sygnału oraz stabilności sygnału akustycznego w relatywnie długim czasie.
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Influence of cabbage juices on oxidative changes of rapeseed oil and lard
PublicationCelem badań było określenie wpływu soków wyizolowanych z kapusty surowej i kiszonej na przemiany oksydatywne i termooksydatywne tłuszczów roślinnych (na przykładzie oleju rzepakowego podwójnie ulepszonego) i zwierzęcych (na przykładzie smalcu). Tłuszcze te ogrzewano w temperaturze 100 0C z sokami z kapusty w układzie modelowym przez 6 godzin, pobierając co 1,5 godz. próbki do badań.Po procesie ogrzewania tłuszczów w obecnosci soków...
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Scuffing resistance of DLC-coated gears lubricated with ecological oil
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Effect of lipid phase composition on autoxidation of water - in - oil emulsion
PublicationW pracy przedstawiono ocenę procesu autooksydacji emulsji W/O ze szczególnym uwzględnieniem składu fazy olejowej emulsji na postęp reakcji. Zbadano również wpływ wybranych antyoksydantów i emulgatorów na stabilność sporządzonych układów emulsyjnych.
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Rheological properties and stability of water in Canola oil ethyl esteremulsion.
PublicationWyznaczono krzywe płynięcia i podatność na rozdział dla emulsji fazy wodnej w estrze etylowym oleju Canola. Właściwości te stanowią o podatności tej emulsji jako symulanta ropy naftowej w badaniach terenowych rozlewów olejowych.
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Optical measurements for thin oil film investigation in rheometric processes.
PublicationPrzedmiotem badań jest pomiar parametrów cienkiej warstwy oleju silikonowego AK106, powstającej na ścianach dyszy w trakcie procesu reologicznego wyciskania do form past ceramicznych, przygotowywanych ze sproszkowanego tlenków wodorotlenków AlOOH oraz oleju AK106. Parametrami badanymi były: grubość warstwy oleju, charakterystyka reflektancyjna pasty oraz skład mieszaniny. Przedstawione zagadnienie ma istotne znaczenie dla rozwoju...
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Optical monitoring of thin oil film thickness in extrusion processes
PublicationPraca porusza problem pomiaru grubości cienkiej warstwy przyściennej -oleju, podczas procesu wyciskania ceramiki modelowej. Szczegółowo opisuje zjawiska fizyczne zachodzące w warstwie przyściennej oraz dynamiczne parametry wykorzystywane do oceny grubości. Autorzy opisują także metodę pomiaru oraz konstrukcję układów pomiarowych.
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Application of Thermo-chemical Technologies for Conversion of Associated Gas in Diesel-Gas Turbine Installations for Oil and Gas Floating Units
PublicationThe paper considers the issue of thermo-chemical recovery of engine’s waste heat and its further use for steam conversion of the associated gas for oil and gas floating units. The characteristics of the associated gas are presented, and problems of its application in dual-fuel medium-speed internal combustion engines are discussed. Various variants of combined diesel-gas turbine power plant with thermo-chemical heat recovery are...
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Lubricant property and rolling contact fatigue test of oil-in-water emulsion type HFA-E and oil Total Azolla 46 as working liquids in hydraulic systems
PublicationW artykule scharakteryzowano i opisano wyniki badań własności smarnych wody destylowanej, emulsji wodno-olejowej typu HFA-E (1% oleju w wodzie) sporządzonej na bazie koncentratu Isosynth VX110BF, oleju Total Azolla 46 i samego koncentratu Isosynth VX110BF (tylko dla porównania z olejem, emulsją i wodą). W artykule pokazano wyniki badań pittingu z użyciem wody, emulsji i oleju jako środków smarnych. Ponadto w artykule przedstawiono...
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The electrochemical impedance spectroscopy studies of the anode material based on polymer and starch derived ceramic for lithium ion batteries
PublicationThe anode materials derived of preceramic polymer poly(1,2-dimethylsilazane) (PSN) and starch was study. Commercially available polysilazane (poly(1,2-dimethylsilazane (PSN 2M01 Gelest) was mixed with commercially available starch (POCH Gliwice). The ratio polymer/starch (PSN/starch) was 1/1 or 3/7. The polysialazane/starch blend was cross-linked at 230 ºC for 2 h followed by heating to the final temperature (500 ºC, 700 ºC and...
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Biomass-Derived Nitrogen Functionalized Carbon Nanodots and Their Anti-Biofouling Properties
PublicationThe prevalence of the antibiotic resistant bacteria remains a global issue. Cheap, sustainable and multifunctional antibacterial membranes are at the forefront of filtrating materials capable of treating multiple flow streams, such as water cleansing treatments. Carbon nanomaterials are particularly interesting objects shown to enhance antibacterial properties of composite materials. In this article, amino-functionalized, photoluminescent...
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Method for Clustering of Brain Activity Data Derived from EEG Signals
PublicationA method for assessing separability of EEG signals associated with three classes of brain activity is proposed. The EEG signals are acquired from 23 subjects, gathered from a headset consisting of 14 electrodes. Data are processed by applying Discrete Wavelet Transform (DWT) for the signal analysis and an autoencoder neural network for the brain activity separation. Processing involves 74 wavelets from 3 DWT families: Coiflets,...
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Chromium, nickel and vanadium mobility in soils derived from fluvioglacial sands
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Glioblastoma-derived spheroid cultures as an experimental model for analysis of EGFR anomalies
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Sustainable carbon microtube derived from cotton waste for environmental applications
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A unified measure of collision risk derived from the concept of a ship domain
PublicationW artykule zaprezentowano nową miarę ryzyka kolizji dwóch statków, wywiedzioną z koncepcji domeny statku. Jej prostota oraz fakt, że uwzględnia ona kursy obydwu statków czynią ją dobrą alternatywą dla często stosowanego pojęcia odległości największego zbliżenia. Miara ta jest elastyczna, tzn. można korzystać z niej w powiązaniu z dowolną, zadaną domeną statku. Szczegółowo przedstawiono wyprowadzenia wszystkich niezbędnych wzorów...