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Wyniki wyszukiwania dla: NAPEŁNIACZE MINERALNE
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A review on the critical challenges and progress of SiOx-based anodes for lithium-ion batteries
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Glosa aprobująca do wyroku Izby Karnej Sądu Najwyższego z 29 maja 2018 r. o sygn. akt II KK 99/18. A comment of approval on the verdict of 29 May 2018 issued by the Criminal Law Chamber of the Polish Supreme Court (II KK 99/18).
Publikacja"Glosowany wyrok Sądu Najwyższego dotyczy problematyki orzekania o czynach przeciwko mieniu, w stosunku do których od 9 listopada 2013 r. kryterium uznania danego czynu za przestępstwo albo za wykroczenie stanowi określony w kodeksie wykroczeń wskaźnik minimalnego wynagrodzenia za pracę. We wskazanym zakresie należy mieć na uwadze minimalne wynagrodzenie z daty orzekania w przedmiocie odpowiedzialności za taki czyn, a nie z...
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Leki kokcydiostatyczne - właściwości, zastosowanie i oznaczanie
PublikacjaW żywieniu zwierząt, obok podstawowych składników pokarmowych, witamin i składników mineralnyh stosuje się różnego rodzaju substancje określane mianem dodatków paszowych. Za dodatki paszowe uważa się substancje dodawane do pasz w celu poprawienia ich jakości lub też osiągnięcia określonych właściwości, szczególnie pod względem wyglądu, zapachu, smaku, konsystencji, trwałości oraz ze względów technologicznych, żywieniowo - fizjologicznych...
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Influence of microbial adaptation and supplementation of nutrients on the biodegradation of ionic liquids in sewage sludge treatment processes
PublikacjaCiecze jonowe przyciągają coraz większą uwagę ze strony przemysłu, ze względu na możliwość zastosowania ich jako zamiennik dla bardziej niebezpiecznych substancji. Jednakże część ich struktury może stać się trwałym zanieczyszczeniem dlatego niezbędne jest prowadzenie badań w celu określenia zagrożenia dla środowiska, związanego z obecnością w nim cieczy jonowych, np. dotyczących możliwości ich biodegradacji w warunkach rzeczywistych....
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Molybdenum-uranium-vanadium geochemistry in the lower Paleozoic Alum Shale of Scandinavia: Implications for vanadium exploration
PublikacjaThis paper investigates the hyper-enrichments of molybdenum (Mo), uranium (U), and vanadium (V) in the lower Paleozoic, Alum Shale of Denmark, Sweden, Norway, and Estonia. Molybdenum and U are mainly associated with organic matter and the highest contents are found in the Furongian part of the Alum Shale. This Furongian hyper-enrichment of Mo and U commenced with the Steptoean Positive Carbon Isotope Excursion (SPICE) event. The...
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Comparative review of piezoelectric biomaterials approach for bone tissue engineering
PublikacjaBone as a minerals’ reservoir and rigid tissue of the body generating red and white blood cells supports various organs. Although the self-regeneration property of bone, it cannot regenerate spontaneously in severe damages and still remains as a challenging issue. Tissue engineering offers several techniques for regenerating damaged bones, where various biomaterials are examined to fabricate scaffolds for bone repair. Piezoelectric...
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Phenolic composition and antioxidant properties of polish blue-berried honeysuckle genotypes by HPLC-DAD-MS, HPLC postcolumn derivatization with ABTS or FC, and TLC with DPPH visualization
PublikacjaIn this study, different Polish cultivars of blue-berried honeysuckles (Lonicera caerulea L.), wild and bog bilberry, were analyzed for bioactive compounds. The chemical properties verified included composition of anthocyanins and other polyphenols, antioxidant activity, and profiles of antioxidants by HPLC postcolumn derivatization or TLC. The antioxidant activities of different blue-berried honeysuckle cultivars were similar...
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Marine propeller shaft bearings under low-speed conditions: water vs. oil lubrication
PublikacjaThe bearings used in shipbuilding, hydropower, and water pumps have undergone a metamorphosis in recent decades. Because of environmental regulations, lubrication with grease or mineral oil is prohibited. Thus, the standard solutions include water-lubricated bearings with polymer bushings or sealed systems lubricated with oil. When properly designed, assembled, and operated, bearings can operate reliably for years. However, specific...
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Timber frame houses resistant to dynamic loads - seismic analysis
PublikacjaThe aim of the article is to present results of seismic analysis results of two real-sized timber frame buildings subjected to seismic excitations. The first model was insulated with mineral wool, the second one with polyurethane foam. Technology and specifications involved in both models construction is based on the previously conducted experimental research on timber frame houses, including wall panels tests, wall numerical models...
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Technologia budowy domów drewnianych o konstrukcji szkieletowej odpornych na wpływy dynamiczne-Eksperymentalne badania modeli ścian zewnętrznych
PublikacjaDrewno to najstarszy i jednocześnie najszerzej stosowany materiał w budownictwie. Dosztywnienie konstrukcji drewnianych, a co za tym idzie zwiększanie częstotliwości drgań własnych takich konstrukcji przyczynia się do poprawienia ich odporność na oddziaływania dynamiczne, w tym na wpływy sejsmiczne i parasejsmiczne. Celem niniejszego artykułu jest przedstawienie wyników badań eksperymentalnych przeprowadzonych na specjalnie w tym...
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PROJEKT STANDARDÓW DOSTĘPNOŚCI DLA OSÓB ZE SZCZEGÓLNYMI POTRZEBAMI DO TRANSPORTOWYCH WĘZŁÓW PRZESIADKOWYCH
PublikacjaW artykule opisano projekt standardów dostępności zintegrowanych węzłów przesiadkowych, które zawierają spójne dla wszystkich elementów ZWP z uwzględnieniem potrzeb i wymagań osób ze szczególnymi potrzebami zasady projektowania, budowy i utrzymania oraz minimalne parametry kluczowych dla samodzielnej realizacji podróży przez osoby ze szczególnymi potrzebami rozwiązań i udogodnień. Przedstawione standardy zawierają zasady i wymagania...
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Thermochemistry of rare earth perovskites Na3xRE0.67−xTiO3 (RE = La, Ce)
PublikacjaHigh-temperature oxide melt solution calorimetry using sodium molybdate (3Na2O·4MoO3) solvent at 973 K was performed for the Na3xRE0.67−xTiO3 (RE = La, Ce) perovskite series. The enthalpies of formation of lanthanum perovskites from oxides (La2O3, Na2O, TiO2), are −107.25 ± 2.56, −93.83 ± 6.06, −80.68 ± 5.93, and −33.49 ± 4.26 kJ/mol and enthalpies of formation from elements are −1614.05 ± 5.37, −1596.44 ± 7.68, −1594.03 ± 7.58,...
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Integrated development plans of the functional urban areas in Pomeranian region in Poland
PublikacjaThe European Commission put a growing emphasis on the territorial and integrated app roach to policy support addressed in the frame of regional policy. In a special way this process refers to cities along with their functional environment. In Poland the National Spatial Development Concept 2030 has introduced the concept of functional areas, among others – Functional Urban Areas (FUAs). There is...
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(CsX)Cu5O2(PO4)2 (X = Cl, Br, I): A Family of Cu2+ S = 1/2 Compounds with Capped-Kagomé Networks Composed of OCu4 Units
PublikacjaThree new salt inclusion compounds (CsX)Cu5O2(PO4)2 (X = Cl, Br, I), phosphate analogues of the kagomé mineral averievite, are reported. Their crystal structures are composed of trigonal networks of corner-sharing OCu4 anion-centered tetrahedra, forming capped-kagomé planes, which can also be regarded as two-dimensional slices along the [111] direction of a pyrochlore lattice. Magnetization and heat capacity measurements reveal...
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Honey as an indicator of heavy metals in the environment
PublikacjaHoney bees collect nectar, pollen and honeydew to produce bee products. One of them is honey, which due to chemical composition and properties is considered by human as a valuable food product. When honey bees collect substrates to produce honey they can bring contaminants to the hive. The presence of xenobiotics in bee products may lower their quality and devalue their properties, and also endanger human health. Many scientists...
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Ecology In Tribology: Selected Problems of Eliminating Natural Oil-Based Lubricants from Machine Friction Couples
PublikacjaThe elimination of mineral oil-based lubricants from machines has multiple beneficial effects on the natural environment. Firstly – these lubricants are a direct threat to the environment in the event of leaks; secondly – their elimination reduces the demand for crude oil from which they are obtained. In addition, in many cases, e.g. when replacing traditional lubricants with water, friction losses in the bearings can also be reduced...
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The accessibility, necessity, and significance of certified reference materials for total selenium content and its species to improve food laboratories' performance
PublikacjaMicronutrients are one of the most important groups of nutrients that our body needs daily in trace amounts to tackle deficiencies. Selenium (Se) is a mineral that occurs naturally in foods and is an essential component of selenoproteins that support the healthy functioning of the human body. Therefore, monitoring dietary Se concentrations must be a higher priority to meet daily intakes. Fulfillment can be addressed through applying...
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Fabrication and Characterization of Green Polyurethane Foams with Enhanced Vibration Damping Capability
PublikacjaOver the past decades, there has been an intensive development of the technologies and innovations aimed at increasing the quality of life. This development largely concerns the comfort of use of everyday products that, among others, are products of the automotive, construction, or furniture industries. Considering the increase in the comfort of using products such as cars, houses, and flats, one of the comfort features of their...
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Properties and Formation of Mineralized Veins in an Organic-Rich Shale Formation
PublikacjaAn earlier paper defined mineral and organic matter constituents in weak interfaces in shale formations (Ptaszynska, et. al., 2016). The formation studied in the earlier work and here is the Jurassic, early-Cretaceous Vaca Muerta formation in the Neuquen basin in Argentina. In this earlier work, mineralized "veins" were noted to be prevalent and complicated, sometimes being shear weak interfaces while in other cases they were not....
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Chemia a zdrowa żywność : Dodatki i zanieczyszczenia żywności : problemy i wyzwania
PublikacjaPodstawowe składniki pożywienia to: tłuszcze, węglowodany, białka, składniki mineralne, w tym makroelementy i mikroelementy, witaminy oraz składniki bioaktywne. Niebezpiecznymi składnikami żywności mogą być: dodatki do żywności w trakcie procesu produkcji, substancje powstające w trakcie obróbki, organiczne i nieorganiczne zanieczyszczenia oraz substancje występujące w sposób naturalny, np. alkaloidy grzybowe. Stosowanie dodatków...
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Chemical composition of shells from red (Strongylocentrotus franciscanum) and green (Strongylocentrotus droeba-chiensis) sea urchin
PublikacjaThe shells from red and green sea urchins accounted for 47.9 and 40.7% of their body weights, respectively. The red and green sea urchin shells contained 91.08 and 90.77% minerals and 4.06 and 4.99% proteins, respectively. The shells did not contain any chitin. Sea urchin shells had a relatively large amount of naphthoquinone pigments, 121 mg per 100 g in red and 163 mg per 100 g in green species. The small quantities of glucosamine...
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Anaerobic consortia mediate Mn(IV)-dependent anaerobic oxidation of methane
PublikacjaManganese-dependent anaerobic oxidation of methane (Mn-AOM) is a major methane sink and vital to mitigating global warming. However, it is difficult for microorganisms to mediate electron transfer between the hardly dissolved CH4 and insoluble Mn(IV) minerals, leading to poor understanding of species mediating Mn-AOM. This study successfully enriched an anaerobic consortium mediating AOM driven by Mn-dependent respiratory growth,...
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Rapana venosa consumption improves the lipid profiles and antioxidant capacities in serum of rats fed an atherogenic diet
PublikacjaIn the recent years, the consumption of seafood has increased. There are no results on the studies of Rapana venosa (Rv) as a supplementation to the diets. We hypothesized that Rv would increase antioxidant capacity and reduce blood lipids, based on the composition of bioactive compounds and fatty acids. Therefore, the aim of this investigation was to evaluate in vitro and in vivo actions of Rv from contaminated (C) and non-C (NC)...
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Effectiveness of various types of coating materials applied in reinforced concrete exposed to freeze–thaw cycles and chlorides
PublikacjaThis study assesses the durability of coated and uncoated concrete surfaces protected with four different coating materials: water-soluble (BW), solvent-based (BR), mineral (MI), and epoxy (EP). The durability assessment includes evaluating the absorption rate of water, pull-off adhesion strength, and coating material thickness. Concrete samples were subjected to immersion in regular water and a 7% urea solution, followed by...
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Effectiveness of various types of coating materials applied in reinforced concrete exposed to freeze–thaw cycles and chlorides
PublikacjaThis study assesses the durability of coated and uncoated concrete surfaces protected with four Different coating materials: water-soluble (BW), solvent-based (BR), mineral (MI), and epoxy (EP). The durability assessment includes evaluating the absorption rate of water, pull-of adhesion strength, and coating material thickness. Concrete samples were subjected to immersion in regular water and a 7% urea solution, followed by cyclic...
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Inter Applied Chemistry Programme 5 Intorduction to hazard assessment of chemicals Marta Markiewicz
Kursy OnlineInter Applied Chemistry Programme 5 Intorduction to hazard assessment of chemicals Marta Markiewicz Marta Markiewicz obtained a Master’s degree in Biotechnological Engineering in 2007 from Koszalin University of Technology with the thesis focusing on recovery of native proteins from industrial waste streams using preparative ion-exchange chromatography. Subsequently she obtained a PhD in Technical Science (2012) from Gdańsk...
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Badania i opis zjawisk nowego typoszeregu silników hydraulicznych satelitowych z kompensacją luzów.
PublikacjaW referacie przedstawiono budowę, działanie i opis zjawisk nowego typoszeregu silników hydraulicznych satelitowych, w których zastosowano kompensację luzów osiowych w celu ograniczenia przecieków przez szczeliny komór roboczych. Typoszereg tych silników opracowany przez firmę Projektowanie Maszyn inż. Bohdana Sieniawskiego obejmuje 13 wielkości chłonności na obrót wału w zakresie od 0,4 do 6,3 dm3/obr. Prace badawcze nad tymi silnikami,...
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Synthesis Attempt and Structural Studies of Novel A2CeWO6 Double Perovskites (A2+ = Ba, Ca) in and outside of Ambient Conditions
PublikacjaSynthesis Attempt and Structural Studies of Novel A 2 CeWO 6 Double Perovskites (A 2+ = Ba, Ca) in and outside of Ambient Conditions Damian Wlodarczyk,* Mikolaj Amilusik, Katarzyna M. Kosyl, Maciej Chrunik, Krystyna Lawniczak-Jablonska, Michal Strankowski, Marcin Zajac, Volodymyr Tsiumra, Aneta Grochot, Anna Reszka, Andrzej Suchocki, Tomasz Giela, Przemyslaw Iwanowski, Michal Bockowski, and Hanka Przybylinska Cite This: ACS Omega...
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BINDER COURSES USING COLD RECYCLED MIXTURES – A NOVEL CONCEPT IN COLD RECYCLING
PublikacjaCold recycling with cement and bituminous emulsion is one of the most environmentally friendly techniques to maximize the reuse of reclaimed asphalt (RA) collected during demolition of roads. Cold recycled mixtures are commonly used for base courses in construction or rehabilitation of flexible and semi-rigid pavements. Current experiences demonstrated that cold recycling with appropriate requirements and technical recommendations...
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Potential of novel atomic emission techniques as a tool for investigation of the possibilities of using industrial waste as additives in construction materials
PublikacjaNowadays, due to the global ecological crisis and ways to prevent a climate disaster, more and more attention is paid to green techno-logies and green Chemistry, which are part of the so-called “The Green Deal.” The main assumption is the optimization of the processes of producing necessary goods and the implementation of methods of managing postproduction waste in the least environmentally harmful manner. In the presented research,...
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Methods of Determining Pressure Drop in Internal Channels of a Hydraulic Motor
PublikacjaIn this paper, new methods for determining the pressure drop in internal channels of a hydraulic motor are proposed and described. Mathematical models of pressure losses in internal channels have also been described. Experimental tests of the satellite motor were carried out according to one of the proposed methods. The tests were carried out for two liquids, i.e., water and mineral oil. Experimental studies have shown that at...
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Removal of cyclohexane and ethanol from air in biotrickling filters inoculated with Candida albicans and Candida subhashii
PublikacjaThis paper presents investigations on the removal of cyclohexane and ethanol from air in polyurethane- -packed biotrickling filters, inoculated with Candida albicans and Candida subhashii fungal species. Results on process performance together with flow cytometry analyses of the biofilm formed over packing elements are presented and discussed. The results indicate that the presence of ethanol enhances the removal efficiency of cyclohexane...
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Application of BDD thin film electrode for electrochemical decomposition of heterogeneous aromatic compounds
PublikacjaThe aim of the presented study is to investigate the applicability of electrochemical oxidation of aromatic compounds containing heteroatoms, e.g. waste from production of pesticides or pharmaceutics, at a borondoped diamond (BDD) electrode. The BDD electrodes were synthesized by microwave plasma enhanced chemical vapour deposition (MW PE CVD). Investigation of the electrode surface by optical microscopy and scanning electron microscopy...
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The usefulness of birch saps from the area of Podkarpacie to produce birch syrup
PublikacjaIn northern European countries, as well as in North America tree saps of maples and birches are used for the production of syrups. Birch syrups are characterized by a specific aromatic taste and can be used as an addition to sweets, desserts, salads and meats. Attention is paid to the health benefits of birch syrups, mainly for high mineral content. The aim of this study was to evaluate the usefulness of birch saps obtained from...
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Czy warto pić wodę butelkowaną? Analiza porównawcza jakości wody z gdańskich ujęć podziemnych i wody butelkowanej
PublikacjaŻycie ludzkie nierozłącznie wiąże się z obecnością wody. Woda stanowi zarówno element organizmu ludzkiego, jak i środowiska. Prawidłowe funkcjonowanie człowieka w dużej mierze zależy od regularnego dostarczania organizmowi niezbędnej dawki wody oraz odpowiedniej ilości składników mineralnych. Celem pracy była analiza porównawcza jakości wody wodociągowej pochodzącej z ujęć podziemnych oraz dostępnych na rynku wód butelkowanych...
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Adsorption onto zeolites: molecular perspective
Publikacja2D minerals are among key elements of advanced systems, but the need for understanding their interactions/reactions with materials and systems in which they are involved necessitates tracking their molecular and atomic monitoring. Zeolitic structures are microporous materials formed in the nature through volcanic activities or synthesis. Because of their outstanding physicochemical properties like cation exchange capacity and excellent...
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Yerba Mate - A Long but Current History
PublikacjaBearing in mind the growing interest in Yerba Mate, a comprehensive study has been prepared containing the most important aspects and possibilities of its use. The introduction of the work contains the species characteristics of Yerba Mate, as well as information about the origin and places of cultivation. The next part focuses on the analysis of the composition, pointing to purine alkaloids, polyphenols, saponins, and minerals...
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Curing epoxy resin with anhydride in the presence of halloysite nanotubes: the contradictory effects of filler concentration
PublikacjaEpoxy resins can be cured with a wide variety of curing agents such as amines and anhydrides, but anhydride curing would be more favorable for research purpose because of epoxy-anhydride curing taking place slowly at room temperature. Incorporation of natural nanosized minerals into epoxy is of environmental importance. Halloysite nanotubes (HNTs) display chemical properties similar to those of silica and alumina, and hydroxyl...
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Badanie Właściwości hydrofobowych modyfikowanych proszków wapiennych
PublikacjaBrak właściwości hydrofobowych szerokiej gamy produktów niejednokrotnie ogranicza możliwości ich magazynowania, transportu czy stosowania. W niniejszej pracy podjęto próbę oceny możliwości stosowania standardowych metod badania charakteru powierzchni ciał stałych do określania stopnia hydrofobizacji. Prace takie mogą mieć zastosowanie np. w przemyśle budowlanym czy górniczym, ale również w dziedzinach bardziej precyzyjnych
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Poroelastic Low Noise Road Surfaces
PublikacjaNoise is one of the most important problems related to road traffic. During the last decades, noise emitted by engine and powertrain of vehicles was greatly reduced and tyres became a clearly dominant noise source. The paper describes the concept of low noise poroelastic road surfaces that are composed with mineral and rubber aggregate bound by polyurethane resin. Those surfaces have a porous structure and are much more flexible...
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Experimental and Numerical Investigations of the Effect of Curing Conditions on the Temperature Rise of Concrete
PublikacjaThis paper presents experimental and numerical studies investigating the impact of three curing conditions on temperature evolution in concrete cubes. The tests were performed on samples of the same volume (3.375 dm3) under different curing conditions: room temperature, insulation boxes, and adiabatic calorimeter. Various cements (Portland cement, Portland composite cement, and blast furnace slag cement) and aggregates (gravel...
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Ultra Low Noise Poroelastic Road Surfaces
PublikacjaNoise is one of the most important environmental problems related to road traffic. During the last decades, the noise emitted by the engines and powertrains of vehicles was greatly reduced and tires became a clearly dominant noise source. The article describes the concept of low noise poroelastic road surfaces that are composed of mineral and rubber aggregate bound by polyurethane resin. Those surfaces have a porous structure and...
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Hybrid systems using hydrodynamic cavitation/ultrasound/Fenton processes for effective treatment of wastewater
PublikacjaThe present situation of rapid growth in industrialization generates complex recalcitrant pollutants that are challenging to degrade by conventional wastewater treatment processes. The new generation pollutants such as non-metals in cosmetics or household cleaning chemicals and radioactive compounds which are recalcitrant are the emerging threat to the ecosystem. The headstrong micro and macro pollutants present in wastewater are...
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Carbon nanoarchitectures as high-performance electrodes for the electrochemical oxidation of landfill leachate
PublikacjaNanomaterials and assemblies of the aforementioned into complex architectures constitute an opportunity to design efficient and selective solutions to wide spread and emerging environmental issues. The limited disposal of organic matter in modern landfills generates extremely concentrated leachates characterised by high concentrations of refractory compounds. Conventional biochemical treatment methods are unsuitable, while advanced...
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Biogeochemia selenu i jego monitoring w materiałach biologicznych pochodzenia ludzkiego = Selenium biochemistry and its monitoring in biological samples
PublikacjaNa przestrzeni ostatnich kilkudziesięciu lat selen stał się przedmiotem intensywnych badań naukowych w wielu dyscyplinach nauki. Najczęściej poruszanymi zagadnieniami są aspekty związane z biochemią, geologią, toksykologią, wykorzystaniem przemysłowym selenu oraz jego wpływem na organizmy żywe. Powodem szczególnego zainteresowania tym pierwiastkiem jest niewielka różnica pomiędzy jego poziomem niezbędnym a toksycznym oraz szereg...
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Satelitowe maszyny wyporowe. Podstawy projektowania i analiza strat energetycznych
PublikacjaMonografia poświęcona jest najnowszym konstrukcjom pomp i silników hydraulicznych satelitowych, nad którymi prace projektowe, badawcze i rozwojowe są prowadzone w laboratorium Hydrauliki i Pneumatyki Politechniki Gdańskiej od 2007 roku. W monografii wykazano, że jest możliwe zbudowanie maszyn satelitowych dla dwóch przypadków pracy satelitowego mechanizmu roboczego. Pierwszy przypadek dotyczy mechanizmu z obracającą się planetą,...
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Regulator przepływu
WynalazkiPrzedmiotem wynalazku jest regulator przepływu w dziedzinie napędów hydraulicznych.
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Polyurethane Composite Scaffolds Modified with the Mixture of Gelatin and Hydroxyapatite Characterized by Improved Calcium Deposition
PublikacjaThe skeleton is a crucial element of the motion system in the human body, whose main function is to support and protect the soft tissues. Furthermore, the elements of the skeleton act as a storage place for minerals and participate in the production of red blood cells. The bone tissue includes the craniomaxillofacial bones, ribs, and spine. There are abundant reports in the literature indicating that the amount of treatments related...
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Rapid Characterization of the Human Breast Milk Lipidome Using a Solid-Phase Microextraction and Liquid Chromatography-Mass Spectrometry-Based Approach.
PublikacjaHuman breast milk (HBM) is a biofluid consisting of various biomolecules such as proteins, lipids, carbohydrates, minerals and bioactive substances. Due to its unique and complex composition, HBM provides not only nutritional components required for the growth of the infant, but also additional protection against infections. Global insight into the composition of HBM is crucial to understanding the health benefits infants receive...
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Technologie Materiałów Budowlanych
Kursy OnlineWykład: Klasyfikacja materiałów budowlanych. Naturalne materiały kamienne. Ceramika budowlana. Mineralne spoiwa budowlane. Zaczyny i zaprawy budowlane. Wyroby z zaczynów i zapraw budowlanych. Beton zwykły, wysokowartościowy i specjalny. Betony lekkie. Drewno i materiały drewnopochodne. Szkło budowlane. Tworzywa sztuczne i malarskie materiały budowlane. Lepiszcza bitumiczne i wyroby z nich. Metale i wyroby z metali. Materiały i...