Filters
total: 1132
filtered: 953
Search results for: COHESIVE SOILS
-
THE ECONOMIC EFFICIENCY OF GROWING SWEET POTATO (IPOMOEA BATATAS L. [LAM.]) IN POLISH SOIL AND CLIMATE CONDITIONS
Publication -
Effect of CuO and Al 2 O 3 nanoparticle additives on the tribological behavior of fully formulated oils
Publication -
The feasibility of growing highbush blueberry (V. corymbosum L.) on loamy calcic soil with the use of organic substrates
Publication -
Differential scanning calorimetry as a tool to assess the oxidation state of cold-pressed oils during shelf-life
Publication -
A study on the interaction of rhodamine B with methylthioadenosine phosphorylase protein sourced from an Antarctic soil metagenomic library.
PublicationThe presented study examines the phenomenon of the fluorescence under UV light excitation (312 nm) of E. coli cells expressing a novel metagenomic-derived putative methylthioadenosine phosphorylase gene, called rsfp, grown on LB agar supplemented with a fluorescent dye rhodamine B. For this purpose, an rsfp gene was cloned and expressed in an LMG194 E. coli strain using an arabinose promoter. The resulting RSFP protein was purified...
-
Earthquake-induced pounding between equal height multi-storey buildings considering soil-structure interaction
PublicationThe present paper investigates the coupled effect of the supporting soil flexibility and pounding between neighbouring, insufficiently separated equal height buildings under earthquake excitation. Two adjacent three-storey structures, modelled as inelastic lumped mass systems with different structural characteristics, have been considered in the study. The models have been excited using a suit of ground motions with different peak...
-
Real-Time Monnitoring of Vegetable Oils' Thermal Degradation Using Proton Transfer Reaction Mass Spectrometry
PublicationThe volatile aldehydes, which are generated during frying, can be harmful to human health, therefore the concentration of these compounds in frying fumes should be monitored. In addition, aldehydes are markers of oils’ quality, and so it is possible to determine shelf-life or suitability for frying of these oils. Commonly, in order to determine aldehydes concentration gas chromatography is performed, however it does not allow for...
-
Homogeneity study of candidate reference material (contaminated soil) based on determination of selected metals, PCBs and PAHs
PublicationReference materials (RMs) are an indispensable part of QA/QC system and have played a critical role in the continual expansion of analytical capabilities of the analytical laboratories. The homogeneity study of the candidate for reference material is essential for the quality of reference material (certified reference material) used in quality assurance activities. The homogeneity study of candidate for reference materials of contaminated...
-
Non-Destructive Testing of the Longest Span Soil-Steel Bridge in Europe—Field Measurements and FEM Calculations
PublicationThe article describes interdisciplinary and comprehensive non-destructive diagnostic tests of final bridge inspection and acceptance proposed for a soil-steel bridge made of corrugated sheets, being the European span length record holder (25.74 m). As an effect of an original concept a detailed and precise information about the structure short-term response was collected. Periodic diagnostics of bridge deformations was done one...
-
Deterministic versus stochastic modelling of unsaturated flow in a sandy field soil based on dual tracer breakthrough data
PublicationThe 216 km2 Neuenhagen Millcreeck catchment can be characterized as a drought sensitive landscape in NE Germany. It is therefore a fundamental human interest to understand how water that fell as precipitation moves through the unsaturated soils and recharges groundwater. Additionally, a better knowledge of nutrient transport from soil to groundwater is important also, especially in landscapes with light sandy soils. For a better...
-
Feasibility Study GaN Transistors Application in the Novel Split-Coils Inductive Power Transfer System with T-Type Inverter
PublicationA promising solution for inductive power transfer and wireless charging is presented on the basis of a single-phase three-level T-type Neutral Point Clamped GaN-based inverter with two coupled transmitting coils. The article focuses on the feasibility study of GaN transistor application in the wireless power transfer system based on the T-type inverter on the primary side. An analysis of power losses in the main components of the...
-
Economic conditions for the development of energy efficient civil engineering using RES in the policy of cohesion of the European Union (2014–2020). Case study: The town of Zielona Gora
Publication -
Instrumented end notched flexure - Crack propagation and process zonemonitoring Part II: Data reduction and experimental
PublicationA mode II instrumented end notched flexure three point bending (ENF) adhesion test is described. The adhesive joint consists of two aluminium alloy (AW7075-T6) plates bonded with a structural epoxy adhesive (Hysol EA 9395™). Strain gauges are attached to the outer surface (backface) of the substrates in the lengthwise direction to measure local surface strain during crack propagation. Simultaneously, load/displacement measurements...
-
Determination of the adsorption mechanism of imidazolium type ionic liquids onto kaolinite: implications for their fate and transport in the soil environment
PublicationNiniejsza publikacja szczegółowo opisuje sorpcję cieczy jonowych na powierzchni glin kaolinowych. Uzyskane wyniki wskazują na występowanie zjawiska sorpcji wielowarstwowej. Przy całkowitym wysyceniu najwyższy współczynnik podziału został zaaobserwowany dla cieczy jonowych podstawionych długim łańcuchem alkilowym. Średnie wartości energii swobodnej wyznaczone dla procesu sorpcji cieczy jonowych są niższe niż typowe energie swobodne...
-
Role of Bacterial Consortium and Synthetic Surfactants in Promoting the Phytoremediation of Crude Oil-Contaminated Soil Using Brachiaria mutica
Publication -
Determination of twenty pharmaceutical contaminants in soil using ultrasound-assisted extraction with gas chromatography-mass spectrometric detection
Publication -
Numerical Study on Seismic Response of a High-Rise RC Irregular Residential Building Considering Soil-Structure Interaction
Publication -
Enantioselective comprehensive two-dimensional gas chromatography. A route to elucidate the authenticity and origin ofRosa damascena Milleressential oils
Publication -
Chemical Composition and Antimicrobial Activity of Selected Essential Oils against Staphylococcus spp. Isolated from Human Semen
Publication -
Changes in chemical composition and oxidative stability of cold-pressed oils obtained from by-product roasted berry seeds
Publication -
Effect of Differentiated Nitrogen Fertilization on the Enzymatic Activity of the Soil for Sweet Potato (Ipomoea batatas L. [Lam.]) Cultivation
Publication -
White Clover (Trifolium repens L.) Cultivation as a Means of Soil Regeneration and Pursuit of a Sustainable Food System Model
Publication -
Lipidomic characteristics of three edible cold-pressed oils by LC/Q-TOF for simple quality and authenticity assurance
Publication -
Discrimination of Selected Cold-Pressed and Refined Oils by Untargeted Profiling of Phase Transition Curves of Differential Scanning Calorimetry
Publication -
Ionic Liquid Assisted Dissolution of Dissolved Organic Matter and PAHs from Soil Below the Critical Micelle Concentration
PublicationIncreased use and production of ionic liquids (ILs) may result in emissions into the environment. Particularly vulnerable are industrial areas and landfills where ILs are utilized and ultimately disposed of. This study investigates how IL contamination can affect soil properties and the sorption of pre-existing contaminants. The commonly used IL 1-methyl-3-octyl imidazolium chloride ([OMIM][Cl]) was added at various quantities...
-
Development of laboratory reference material: Soil 1. Baseline and highly elevated concentrations of metals and polycyclic aromatic hydrocarbons
PublicationMateriały odniesienia odgrywają istotną rolę we wszystkich elementach systemu zapewnienia jakości wyników pomiarów. Komisja Europejska od ponad 20 lat wspiera programy badawcze ukierunkowane na poprawę jakości pomiarów fizycznych, biologicznych i chemicznych przez używanie odpowiednich materiałów odniesienia. Temat ich stosowania i perspektyw w Europie i na świecie w tej dziedzinie jest przedmiotem licznych dyskusji. Aktualnie...
-
Virgin rapeseed oils obtained from different rape varieties by cold pressed method - their characteristics, properties, and differences
PublicationCelem pracy było porównanie olejów uzyskanych z różnych odmian rzepaku. Oznaczono skład kwasów tłuszczowych, wartości liczb charakterystycznych (AcV, AnV, PV, TOTOX), zawartość karotenów, tokoferoli, chlorofili, polifenoli, metali (żelazo i miedź). Oznaczono stabilność oksydatywną olejów tłoczonych na zimno. Oznaczono skład frakcji lotnej i przeprowadzono analizy sensoryczne.
-
Evaluation of surfactant and biosurfactant mixture usefulness in oil removal from soil, based on physicochemical studies and flushing experiments
PublicationZbadano aktywność powierzchniową i właściwości zwilżające surfaktantu niejonowego - Rokanolu NL6, biosurfaktantu - JBR 425 i ich mieszanin. Na podstawie tych badań określono zdolność tych surfaktantów do usuwania oleju syntetycznego (PAO 6) z piasku. Roztwory surfaktantów zostały użyte do przemywania złoża piaskowego w kolumnie oraz odmywania piasku metodą dynamiczną. Testy kolumnowe z roztworami Rokanolu NL6 i JBR 425 dały niskie...
-
An examination of an Antarctic soil metagenomic-derivate putative methylthioadenosine phosphorylase gene as a novel reporter gene for promoter trapping
PublicationThe rsfp gene was discovered during examination ofan Antarctic soil-derived metagenome library and encodesa bacterial methylthioadenosine phosphorylase (GenBank accession number GQ202582). In a previous study, we found that E. coli colonies expressing the rsfp gene reveal strong pink fluorescence after exposure to UV light when grown on culture medium supplemented with rhodamine B (Cieśliński et al., 2009). In contrast to that,...
-
Determination of Heavy Metals Concentration in Water and Soil at Various Locations in Lahore and their Harmful Impacts on Human and Plants life
PublicationHeavy metals poisoning of soil and water has resulted from industrial expansion in Lahore, Pakistan, creating a significant environmental hazard. As a result, monitoring the contamination of soil and water around industrial sites is critical. The fact that higher concentrations of heavy metals have a negative influence on both plants and human life and this cannot be ignored. Higher heavy metal concentrations have a direct impact...
-
The correlation between nutritional and health potential and antioxidant properties of raw edible oils from cultivated and wild plants
PublicationThe nutritional properties and health potential of oils from 15 various cultivated and wild plants were investigated on the basis of the fatty acids profiles, total carotenoids and tocopherols content, antioxidant properties and health potential indexes such as atherogenicity index (AI). The oil contents of the plants varied between 0.9 g/100 g for lychee seeds and 29.7 g/100 g for borage seeds. The tocopherol content in oils ranged...
-
Influence of soil–structure interaction on seismic pounding between steel frame buildings considering the effect of infill panels
PublicationThe present research aims to study the influence of the soil-structure interaction (SSI) and existence or absence of masonry infill panels in steel frame structures on the earthquake-induced pounding-involved response of adjacent buildings. The study was further extended to compare the pounding-involved behavior versus the independent behavior of structures without collisions, focusing much on dynamic behavior of single frames....
-
Numerical Study on Seismic Response of a High-Rise RC Irregular Residential Building Considering Soil-Structure Interaction
PublicationThe objective of the present study is to investigate the importance of soilstructure interaction effects on the seismic response of a high-rise irregular reinforced-concrete residential building. In order to conduct this research, a detailed three-dimensional structure model was subjected to various earthquake excitations, also including a strong mining tremor. Soil-foundation flexibility was represented using the spring-based...
-
Some Aspects of Shear Behavior of Soft Soil–Concrete Interfaces and Its Consequences in Pile Shaft Friction Modeling
PublicationThis paper examines the stiffness degradation and interface failure load on soft soil–concrete interface. The friction behavior and its variability is investigated. The direct shear tests under constant normal load were used to establish parameters to hyperbolic interface model which provided a good approximation of the data from instrumented piles. Four instrumented piles were used to obtain reference soil–concrete interface behavior....
-
Solid phase extraction clean up of soil and sediment extracts for the determination of various types of pollutants in a single run.
PublicationOpisano nową procedurę oczyszczania ekstraktów rozpuszczalnikowych (uzyskanych w trakcie obróbki próbek gleby i osadów dennych) z wykorzystaniem techniki ekstrakcji do fazy stałej. Oryginalność podejścia polega na znalezieniu takiej kombinacji sorbentów, że uzyskuje się ekstrakt przygotowany do analizy chromatograficznej na zawartość różnych typów zanieczyszczeń (polichlorowane bifenyle, wielopierścieniowe węglowodory aromatyczne,...
-
Optimized conditions for hydrocarbon group type analysis of base oils by thin-layer chromatography - flame ionisation detection
PublicationW pracy przedstawiono wyniki badań nad opracowaniem optymalnych warunków oznaczania składu grupowego mineralnych olejów bazowych z wykorzystaniem chromatografii cienkowarstwowej oraz detektora płomieniowo-jonizacyjnego (TLC-FID). W przypadku mineralnych olejów bazowych, które otrzymywane są po wielu etapach rafinacji frakcji pochodzących z destylacji próżniowej ropy naftowej oznaczenie ich składu grupowego (z uwzględnieniem podgrup...
-
Development of headspace solid-phase microextraction-gas chromatography method for the determination of solvent residues in edible oils and pharmaceuticals
PublicationW pracy przedstawiono wyniki opracowania procedury oznaczania pozostałości rozpuszczalników organicznych w olejach jadalnych z wykorzystaniem techniki HS-SPME na etapie izolacji i wzbogacania analitów. Przedstawiono proces optymalizacji etapu izolacji i rozdzielenia związków. Dla każdego z analitów wyznaczono parametry walidacyjne charakteryzujące procedurę tj. granice wykrywalności, granicę oznaczalności, liniowość, zakres pomiarowy,...
-
Wpływ cewek kompensujących na lokalne wartości pola własnego okrętu = Influence of compensation coils on local magnetic field of ship
PublicationObiekt ferromagnetyczny umieszczony w polu magnetycznym Ziemi powoduje lokalne zaburzenie równomierności rozkładu tego pola. Kształt i rozmiary zaburzenia zależy od wielu czynników, w tym m.in. od rozmiarów i kształtu obiektu, od jego właściwości ferromagnetycznych i od położenia względem wektora ziemskiego pola magnetycznego. W celu minimalizacji pola własnego okrętu na rzeczywistych obiektach umieszcza się uzwojenia kompensacyjne....
-
Nonlinear harmonic amplitudes in air coils above and below a metal plate as a function of tensile strength via finite element simulation.
PublicationOpisano wyniki obliczeń numerycznych (symulacja metodą MES) wpływu naprężeń na amplitudy nieliniowych harmonicznych napięcia indukowanego w cewkach powietrznych umieszczonych nad i pod płytą.
-
White cabbage in the biofumigation process- expectations and perspectives
PublicationHealth risks related to common use of pesticides and artificial fertilizers raised the interest in alteranative methods of crop protection, among them biofumigation is becoming the most promising. In this process certain natural compounds, mainly degradation products of glucosinolates produced by Brassica species are used to combat pests and microorganisms attacking crops. Increased synthesis of these bioactive compounds can be...
-
Modeling the debonding process of osseointegrated implants due to coupled adhesion and friction
PublicationCementless implants have become widely used for total hip replacement surgery. The long-term stability of these implants is achieved by bone growing around and into the rough surface of the implant, a process called osseointegration. However, debonding of the bone–implant interface can still occur due to aseptic implant loosening and insufficient osseointegration, which may have dramatic consequences. The aim of this work is to...
-
Model tests of cast-in-place piles formed by using different types of auger
PublicationModel tests are still a popular research tool used to observe and determine the mechanisms of pile-soil interaction. Due to the significant scale effect, the results of model tests performed in the 1g system can only be analysed from the qualitative side. This article describes and presents the results of 1g pile model tests carried out for comparative purposes. There were tested the effectiveness and efficiency of various types...
-
Are raw materials or composting conditions and time that most influence the maturity and/or quality of composts? Comparison of obtained composts on soil properties
Publication -
Investigation of edible oils oxidation stability using photooxidation and SPME/GC method for determination of volatile compounds - preliminary investigation
PublicationOdporność olejów roślinnych na oksydatywną degradację prowadzącą do zjełczenia jest istotnym parametrem w ocenie jakości olejów. Artykuł przedstawia nową obiecującą metodę analizy lotnych produktów reakcji utleniania olejów. Jako czynnik przyspieszający proces utleniania olejów zastosowano promieniowanie ultrafioletowe. Badania zostały przeprowadzone przy zastosowaniu mikroekstrakcji do fazy stacjonarnej połaczonej z kapilarną...
-
Requirements and Effects of Surface Drip Irrigation of Mid-Early Potato Cultivar Courage on a Very Light Soil in Central Poland
Publication -
Vanadium toxicity in chickpea (Cicer arietinum L.) grown in red soil: Effects on cell death, ROS and antioxidative systems
Publication -
A new seismic control framework of optimal PIλDµ controller series with fuzzy PD controller including soil-structure interaction
Publication -
Quantification of Biodiversity Related to the Active Protection of Grassland Habitats in the Eastern Lublin Region of Poland Based on the Activity of Soil Enzymes
Publication -
Evaluation of water soil erosion processes in forest areas in the Western Sudetes using terrestrial laser scanning and GIS tools
Publication -
In Vitro Antagonistic Effect of Gut Bacteriota Isolated from Indigenous Honey Bees and Essential Oils against Paenibacillus Larvae
Publication