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Search results for: MATER-BI
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Oddziaływanie materiału opakowaniowego Mater-Bi na populację okrzemki w środowisku morskim
PublicationDo produkcji różnego rodzaju opakowań stosowane są m.in. takie materiały jak: polimery, kopolimery i ich mieszaniny; trwałe oraz stabilne środowisko (ich rozkład trwa kilka set lat). Dlatego też obecnie systematycznie zwiększa się zainteresowanie i zapotrzebowanie na polimerowe materiały biodegradowalne, które rozkładają się w środowisku naturalnym do prostych i bezpiecznych surowców. Należą do nich m.in. substancje naturalne jak...
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Compatibility of Sustainable Mater-Bi/poly(ε-caprolactone)/cellulose Biocomposites as a Function of Filler Modification
PublicationDespite their popularity and multiplicity of applications, wood–polymer composites (WPCs) still have to overcome particular issues related to their processing and properties. The main aspect is the compatibility with plant-based materials which affects the overall performance of the material. It can be enhanced by strengthening the interfacial adhesion resulting from physical and/or chemical interactions between the matrix and...
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Sustainable Chemically Modified Mater-Bi/Poly(ε-caprolactone)/Cellulose Biocomposites: Looking at the Bulk through the Surface
PublicationSustainable polymer composites are progressively under development in a technological paradigm shift from "just use more and more" to "convert into value-added products". The bio-based blends based on Mater-Bi bio-plastic (A) and poly(ε-caprolactone) (B), at a weight ratio of 70:30 (A:B) were developed, followed by the addition of UFC100 cellulose (C) filler to yield 70/30 (w/w) (A:B)/C sustainable biocomposites. The effects of...
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The impact of thermomechanical and chemical treatment of waste Brewers’ spent grain and soil biodegradation of sustainable Mater-Bi-Based biocomposites
PublicationDue to the massive plastic pollution, development of sustainable and biodegradable polymer materials is crucial to reduce environmental burdens and support climate neutrality. Application of lignocellulosic wastes as fillers for polymer composites was broadly reported, but analysis of biodegradation behavior of resulting biocomposites was rarely examined. Herein, sustainable Mater-Bi-based biocomposites filled with thermomechanically-...
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Bi-dipole-bound anions
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Insights into Seawater Biodegradation of Sustainable Mater-Bi/Poly(ε-caprolactone)-Based Biocomposites Filled with Diisocyanate-Modified Cellulose Particles
Publication: Due to rapid economic growth, the use of plastics in almost all areas of human life has significantly increased over recent decades, leading to massive pollution. Therefore, works dealing with sustainable and biodegradable polymer materials are vital now. Herein, sustainable MaterBi/poly(ε-caprolactone) (PCL)-based biocomposites, filled with diisocyanate-modified cellulose particles, were prepared and subjected to 12-week seawater...
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Superconductivity on a Bi Square Net in LiBi
PublicationWe present the crystallographic analysis, superconducting characterization and theoretical modeling of LiBi, that contains the lightest and the heaviest nonradioactive metal. The compound crystallizes in a tetragonal (CuAu-type) crystal structure with Bi square nets separated by Li planes (parameters a = 3.3636(1)Å and c = 4.2459(2) Å, c/a = 1.26). Superconducting state was studied in detail by magnetic susceptibility and heat...
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Mater-Bi/Brewers’ Spent Grain Biocomposites—Novel Approach to Plant-Based Waste Filler Treatment by Highly Efficient Thermomechanical and Chemical Methods
PublicationThermoplastic starch (TPS) is a homogenous material prepared from native starch and water or other plasticizers subjected to mixing at a temperature exceeding starch gelatinization temperature. It shows major drawbacks like high moisture sensitivity, poor mechanical properties, and thermal stability. To overcome these drawbacks without significant cost increase, TPS could be blended with bio-based or biodegradable polymers and...
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Terahertz investigations on some bi-heterocyclic compounds
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Machine learning applied to bi-heterocyclic drugs recognition
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Bi-criteria Data Reduction for Instance-Based Classification
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Synthesis and magnetic properties of (Ba,Bi)1.54Rh8O16 hollandite
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A Bi-Objective Portfolio Optimization with Conditional Value-at-Risk
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Conductivity and superconductivity of (Bi,Pb)4Sr3Ca3Cu4Ox glass-ceramics
PublicationAmorficzny materiał (Bi,Pb)4Sr3Ca3Cu4Ox w zależności od warunków wygrzewania może być albo granulastym materiałem albo silnie nieuporządkowanym metalem. W pracy przedstawiony jest wpływ mikrostruktury na właściwości elektryczne w stanie normalnym oraz przejście do stanu nadprzewodzącego.
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Synthesis and magnetic properties of (Ba,Bi)_1.54Rh_8O_16 hollandite.
PublicationW pracy przedstawiono wyniki badań nad syntezą, strukturą, właściwościami elektrycznymi i magnetycznymi holandytu (Ba,Bi)_1.54Rh_8O_16. Dodanie bizmutu stabilizuje strukturę hollondytu Ba_xRh_8_O_16. Materiał jest Curie-Weiss paramagnetykiem. Nie zaobserwowano nadprzewodnictwa do temperatury 300mK.
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Conductivity and superconductivity of (Bi,Pb)4Sr3Ca3Cu4Ox glass-ceramics.
PublicationW układzie(Bi,Pb)-Sr-Ca-Cu-O poprzez krystalizację w fazie stałej można wytworzyć materiały o bardzo różnych właściwościach elektrycznych i nadprzewodzących. W zależności od warunków krystalizacji, można wytworzyć nadprzewodnik o temperaturze krytycznej między 8 a 105 st.K lub materiał nie przechodzący do stanu nadprzewodzącego. W pracy pokazano i przedyskutowano wpływ składu fazowego, struktury i mikrostruktury na przewodnictwo...
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Bi-GRU-APSO: Bi-Directional Gated Recurrent Unit with Adaptive Particle Swarm Optimization Algorithm for Sales Forecasting in Multi-Channel Retail
PublicationIn the present scenario, retail sales forecasting has a great significance in E-commerce companies. The precise retail sales forecasting enhances the business decision making, storage management, and product sales. Inaccurate retail sales forecasting can decrease customer satisfaction, inventory shortages, product backlog, and unsatisfied customer demands. In order to obtain a better retail sales forecasting, deep learning models...
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Chemometrics of bi-heterocyclic kind of drug specimens in the THz domain
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Conductivity and superconductivity of (Bi,Pb)–Sr–Ca–Cu–O
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A Reference Point Approach to Bi-Objective Dynamic Portfolio Optimization
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The (Bi,Pb)4Sr3Ca3Cu4Ox glass-ceramics: disordered metal and superconductor
PublicationAmorficzny materiał (Bi,Pb)4Sr3Ca3Cu4Ox wygrzewany w odpowiednich warunkach staje się granulastym metalem i nadprzewodnikiem. Może być uważany za silnie nieuporządkowany metal. Ma duży opór i zazwyczaj ujemny współczynnik temperaturowej zależności oporu. Nieuporządkowanie i granulasty charakter materiału ujawnia się również w jego właściwościach nadprzewodzących.
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Conductivity and superconductivity of (Bi,Pb)-Sr-Ca-Cu-O
PublicationAmorficzny materiał (Bi,Pb)4Sr3Ca3Cu4Ox w zależności od warunków wygrzewania może być albo granulastym materiałem albo silnie nieuporządkowanym metalem. Przejście do stanu nadprzewodzącego zachodzi w materiałach, w których Josephsonowskie sprzężenie między granulami jest silniejsze niż oddziaływania Coulombowskie.
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The properties of reduced Bi-Ge-O glasses for thermoelectric devices
PublicationThe bismuth-germanate glasses have been investigated to examine their applicability for thermoelectric devices. In order to increase their electrical conductivity, the 25Bi2O3–75GeO2 glass samples have been reduced at 340-380°C for 10 hours in hydrogen. It has been shown that such heat treatment in H2 leads to the reduction of metal ions Bi3+ and Ge4+ into neutral atoms and the formation of metal grains both in an amorphous glass...
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Cooperation of mono- and bi-articular muscles: human lower limb
PublicationObjectives: The aim of this study was to create and analyze a Pareto-optimal problem that would describe cooperation between mono- and bi-articulate lower limb muscles in sagittal plane. Methods: Equations describing the problem were derived and analyzed, additional constrains were introduced and experimental verification based on gait video analysis was performed. Results: Uncertainty of Pareto-optimal solution is shown for the...
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Particle size analysis of suspensions in removing of organic matter and phosphorus from waste water and surface water
PublicationIn this paper the particle size of suspended solids in the removing of organic matter and phosphorus compounds from lake- and waste- water treated in the Ecological Treatment Systems (ETS) was analyzed.The invesigated materials were taken from two ETS located in Pomerania Region/Poland. Object in Swarzewo is 3rd stage of biological treatment of municipal waste water, while object in Kartuzy has task to remove a phosphorus from...
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The E2 admixtures in mixed forbidden lines of Bi I and Pb I
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Superconducting transition in granular Bi-Sr-Ca-Cu-O superconductors
PublicationW układzie(Bi,Pb)-Sr-Ca-Cu-O poprzez krystalizację w fazie stałej można wytworzyć materiały o bardzo różnych właściwościach elektrycznych i nadprzewodzących. W zależności od warunków krystalizacji, można wytworzyć nadprzewodnik o temperaturze krytycznej między 8 a 105 st. K lub materiał nie przechodzący do stanu nadprzewodzącego. Przejście do stanu nadprzewodzacego w materiałach granulastych ma charakter dwustopniowy. Zbadano wpływ...
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Synthesis and structure of Bi 5 FeTi 3 O 15 ceramics
PublicationAim of the present research was to fabricate and study crystal structure and phase composition of Bi5FeTi3O15 (BTFO) ceramics exhibiting Aurivillius - type structure. By means of simultaneous thermal analysis and X-ray diffraction analysis the process of synthesis of BTFO ceramics has been studied. Mixed oxide method followed by pressureless sintering was used for ceramics preparation. Three endothermic thermal effects have been...
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Text-mining Similarity Approximation Operators for Opinion Mining in BI tools
PublicationThe concept of the Text-mining Similarity Approximation Operators for Opinion Mining as extensions to Natural Language Interface Database is defined. The new operators: “keywords of” dimension; subsetting operator “about C is q”; aggregation operator “by similar C” are proposed. These operators are based on the Latent Semantic Analysis and Social Network Analysis
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Friction and wear behaviour of self mated DLC and DLC-W coatings in water or salt in water solution lubricated sliding
PublicationPrzedstawiono wyniki badań powłok ceramicznych DLC oraz DLC z wolframem (DLC-W) nałożonych na podłoże ze stali nierdzewnej,przy tarciu ślizgowym , w modelowym skojarzeniu o styku konforemnym (płaskie czoło obracającej się względem swojej osi tulei - powierzchnia płaska). Badania prowadzono stosując smarowanie wodą destylowaną albo wodnym roztworem soli - NaCl. Wyznaczano współczynniki tarcia oraz intensywność zużywania ceramicznej...
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Influence of dissolved organic matter in natural and simulated water on the photochemical decomposition of butylparaben
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Segmentation-Based BI-RADS Ensemble Classification of Breast Tumours in Ultrasound Images
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Electronic conduction in (Bi,Pb)–Sr–Ca–Cu–O glass-ceramics
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Electronic conduction in (Bi,Pb)-Sr-Ca-Cu-O granular superconductors
PublicationMetale i nadprzewodniki granulaste są bardzo ciekawymi materiałami dzięki jednoczesnej obecności oddziaływań kulombowskich, tunelowania elektronów i par Coopera oraz różnych zjawisk związanych z nieuporządkowaniem. W pracy przedstawiono właściwości elektryczne granulastego nadprzewodnika (Bi,Pb)-Sr-Ca-Cu-O otrzymanego wskutek krystalizacji w fazie stałej. Badane materiały mogą być traktowane jako układ granul umieszczonych w matrycy...
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Experimental and theoretical solubility advantage screening of bi-component solid curcumin formulations
PublicationA comprehensive experimental and theoretical screening was performed for identification of curcumin solubilizers. Experimental data led to formulation of a non-linear QSPR model correlating molecular descriptors with measured solubilities. The majority of synthesized binary systems exhibited a moderate enhancement of curcumin solubility, which was found to be the highest in the case of curcumin cocrystallized with pyrogallol. New...
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Toward a unified model of mobile Business Intelligence (m-BI) acceptance and use
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Weighted-Sum Approach for Bi-objective Optimization of Fleet Size with Environmental Aspects
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Electronic conduction in (Bi,Pb)-Sr-Ca-Cu-O glass-ceramics
PublicationAmorficzny materiał (Bi,Pb)4Sr3Ca3Cu4Ox wygrzewany w odpowiednich warunkach staje się nieuporządkowanym metalem i nadprzewodnikiem. Przedstawiono model mechanizmu przewodnictwa elektrycznego tych materiałów. Przeprowadzono dyskusję istniejących teorii do opisu badanych materiałów.
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Electrical conductivity of disordered (Bi,Pb)-Sr-Ca-Cu-O materials
PublicationAmorficzny materiał (Bi,Pb)4Sr3Ca3Cu4Ox wygrzewany w odpowiednich warunkach staje się nieuporządkowanym metalem i nadprzewodnikiem. Ma duży opór i zazwyczaj ujemny współczynnik temperaturowej zależności oporu. W pracy dyskutowane są właściwości w stanie normalnym oraz przejście do stanu nadprzewodzącego.
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Copper defects and conductivity in Bi-Pb-Sr-Ca-Cu-O glasses.
Publication(Bi0.8Pb0.2) 4Sr3Ca3Cu4Ox częściowo skrystalizowane próbki otrzymano poprzez wygrzewanie szkła w wysokiej temperaturze. Badano je metodą EPR w zakresie temperatur od 4K do 300K. Koncentracja paramagnetycznych centrów Cu2+ zmniejsza się wraz ze wzrostem przewodnictwa elektrycznego i znika po skrystalizowaniu faz nadprzewodzących.
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Segmentation-Based BI-RADS ensemble classification of breast tumours in ultrasound images
PublicationBackground: The development of computer-aided diagnosis systems in breast cancer imaging is exponential. Since 2016, 81 papers have described the automated segmentation of breast lesions in ultrasound images using arti- ficial intelligence. However, only two papers have dealt with complex BI-RADS classifications. Purpose: This study addresses the automatic classification of breast lesions into binary classes (benign vs. ma- lignant)...
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Toward a unified model of mobile Business Intelligence (m-BI) acceptance and use
PublicationFactors affecting mobile business intelligence (m-BI) acceptance and use have become an increasingly important topic in practice due to the growing complexity of organizations, and their underlying information systems (IS). Since, one can notice considerable interest in m-BI, however, to the best of our knowledge few studies (if any) aim to synthesize the existing body of knowledge with regards to the factors affecting m-BI acceptance...
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Bi-based halide perovskites: Stability and opportunities in the photocatalytic approach for hydrogen evolution
PublicationIn this study, we successfully prepared Bi-based single perovskites of the A3Bi2I9 type (A = Cs, Rb, MA, FA), and, for the first time, attempted to experimentally obtain double perovskites Cs2B’BiI6 type (B′ = Ag, Au, In, Cu). Despite the premises available in theoretical studies, our research has proven the impossibility of the existence of double perovskites of this type. Nevertheless, both types of obtained materials were subjected...
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Balanced Spider Monkey Optimization with Bi-LSTM for Sustainable Air Quality Prediction
PublicationA reliable air quality prediction model is required for pollution control, human health monitoring, and sustainability. The existing air quality prediction models lack efficiency due to overfitting in prediction model and local optima trap in feature selection. This study proposes the Balanced Spider Monkey Optimization (BSMO) technique for effective feature selection to overcome the local optima trap and overfitting problems....
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Determination of ionic conductivity in the Bi-Si-O and Pb-Si-O glasses
PublicationImpedance spectroscopy measurements in various gas atmospheres were carried out in order to explain the doubts about the type of carriers and the mechanism of electrical conductivity in Bi-Si-O and Pb-Si-O glasses. In bismuth silicate glass, a typical ionic conductivity with oxygen ions as charge carriers was observed. The level of electrical conductivity of the glass at 400 °C was 5 × 10−8 S·cm−1 , with the activation energy of...
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(Bi,Pb)-Sr-Ca-Cu-O glass-ceramics - superconductor and granular metal
PublicationW materiale o składzie (Bi,Pb)-Sr-Ca-Cu-O wskutek stosowania różnych warunków wytwarzania można otrzymać materiały o różnorodnych właściwościach. W efekcie wygrzewania materiał amorficzny częściowo krystalizuje. To powoduje wzrost rozmiaru i zawartości przewodzących i nadprzewodzących granul oraz zmniejszenie szerokości izolujących barier pomiędzy granulami. Zależność temperaturowa oporu słabo skrystalizowanego materiału jest funkcją...
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Microwave absorption study on (Bi, Pb)-Sr-Ca-Cu-O granular superconductors
PublicationNadprzewodniki granulaste są bardzo ciekawymi materiałami dzięki temu, że zawierają dużą ilość złącz Josephsona. W pracy przedstawiono absorpcję mikrofalową w granulastych nadprzewodnikach (Bi, Pb)-Sr-Ca-Cu-O zawierających granule 2201, 2212 i 2223 umieszczone w matrycy dielektrycznej. Obserwowano dwustopniowe przejście do stanu nadprzewodzącego. Sygnał MMMA obserwowano poniżej temperatury T1.
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OOA-modified Bi-LSTM network: An effective intrusion detection framework for IoT systems
PublicationCurrently, the Internet of Things (IoT) generates a huge amount of traffic data in communication and information technology. The diversification and integration of IoT applications and terminals make IoT vulnerable to intrusion attacks. Therefore, it is necessary to develop an efficient Intrusion Detection System (IDS) that guarantees the reliability, integrity, and security of IoT systems. The detection of intrusion is considered...
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Mechanical Behavior of Bi-Layer and Dispersion Coatings Composed of Several Nanostructures on Ti13Nb13Zr Alloy
PublicationTitanium implants are commonly used because of several advantages, but their surface modification is necessary to enhance bioactivity. Recently, their surface coatings were developed to induce local antibacterial properties. The aim of this research was to investigate and compare me-chanical properties of three coatings: multi-wall carbon nanotubes (MWCNTs), bi-layer composed of an inner MWCNTs layer and an outer TiO2 layer, and...
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Mechanical Behavior of Bi-Layer and Dispersion Coatings Composed of Several Nanostructures on Ti Substrate
PublicationThree coatings suitable for biomedical applications, including the dispersion coating composed of multi-wall carbon nanotubes (MWCNTs), MWCNTs/TiO2 bi-layer coating, and MWCNTs-Cu dispersion coating, were fabricated by electrophoretic deposition (EPD) on Ti Grade II substrate. Optical microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and nanoindentation were applied to study topography, chemical, and...