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Search results for: pvm
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Thermoplastic starch nanocomposites using cellulose-rich Chrysopogon zizanioides nanofibers
PublicationGreen thermoplastic starch (TPS) nanocomposite films aided by cellulose nanofibers (CNFs) from Chrysopogon zizanioides roots were developed and characterized. When compared to other lignocellulosic fibers, Chrysopogon zizanioides roots revealed exceptionally high cellulose content (~48%). CNFs were separated using an environmentally friendly acid isolation technique that included three stages: (i) alkali treatment; (ii) bleaching;...
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Projekt zespołowy - P, Mechatronika, I st., sem. VI, lato 2021-22 (M:31437W0)
e-Learning CoursesDrodzy Studenci i Drogie Studentki, wraz z dotychczasowymi moimi Studentami i Studentkami opracowaliśmy metodę zdalnego nauczania, która zapewnia możliwie najwyższą jakość tej formy kształcenia. Do prowadzenia zajęć on-line wybraliśmy platformę ZOOM. W tym miejscu czuję się w obowiązku poinformować Państwa, że IOD CUI był bardzo przeciwny użyciu platformy ZOOM do zdalnego kształcenia. Ostatecznie zgodził się, ale pod warunkiem...
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Podstawy konstrukcji maszyn I - W, C, L, IMM, I st., sem. V, lato 2021-22 (M:31639W0)
e-Learning CoursesDrodzy Studenci i Drogie Studentki, wraz z dotychczasowymi moimi Studentami i Studentkami opracowaliśmy metodę zdalnego nauczania, która zapewnia możliwie najwyższą jakość tej formy kształcenia. Do prowadzenia zajęć on-line wybraliśmy platformę ZOOM. W tym miejscu czuję się w obowiązku poinformować Państwa, że IOD CUI był bardzo przeciwny użyciu platformy ZOOM do zdalnego kształcenia. Ostatecznie zgodził się, ale pod warunkiem...
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Podstawy konstrukcji maszyn III - P, IMM, I st., sem. VI, lato 2021-22 (PG_00050262)
e-Learning CoursesDrodzy Studenci i Drogie Studentki, wraz z dotychczasowymi moimi Studentami i Studentkami opracowaliśmy metodę zdalnego nauczania, która zapewnia możliwie najwyższą jakość tej formy kształcenia. Do prowadzenia zajęć on-line wybraliśmy platformę ZOOM. W tym miejscu czuję się w obowiązku poinformować Państwa, że IOD CUI był bardzo przeciwny użyciu platformy ZOOM do zdalnego kształcenia. Ostatecznie zgodził się, ale pod warunkiem...
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Dimethyl ether (DME) as potential environmental friendly fuel
PublicationIn recent years, there has been a growing interest in replacing petroleum fuels with so-called second generation environmental friendly fuels. Compared to traditional petroleum fuels dimethyl ether (DME) could be used as a clean high-efficiency compression ignition fuel with reduced particulate matter (PM), sulfur oxides (SOx), hydrocarbons (HC), carbon monoxide (CO) as well as combustion noise. Compared to some of the other leading...
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Assessment of the impact of jet impingement technique on the energy efficiency of air-cooled BIPV/T roof tile
PublicationThe paper concerns a numerical analysis of cooling of the hybrid photovoltaic (PV) modules dedicated to Building-Integrated Photovoltaic/Thermal (BIPV/T) systems. Attention was focused on the photovoltaic roof tiles, using a jet impingement technique, in which the intensification of heat transfer is ensured by streams of air hitting the heat exchange partition. A series of numerical simulations were carried out to assess an influence...
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The effect of pre-hydrogen charging on corrosion behaviour of superduplex stainless steel welded joints
PublicationThe paper presents results of research undertaken to determine the influence of hydrogen on passivity and corrosion resistance of 2507 super duplex stainless steel welded joints. Butt welded joints were made with low heat input using flux corded arc welding (FCAW) method. Coupons of 5.0 x 5.0 mm were cut from the welded joints containing weld metal (WM), heat affected zone (HAZ) and parent metal (PM). Hydrogen was introduced...
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Structural properties of mixed conductor Ba1−xGd1−yLax+yCo2O6−δ
PublicationBa1−xGd1−yLax+yCo2O6−δ (BGLC) compositions with large compositional ranges of Ba, Gd, and La have been characterised with respect to phase compositions, structure, and thermal and chemical expansion. The results show a system with large compositional flexibility, enabling tuning of functional properties and thermal and chemical expansion. We show anisotropic chemical expansion and detailed refinements of emerging phases as La is...
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Reliability and types of diagnosis in the process of diesel engine operation
PublicationThe article presents complexity of the problem concerning development of diagnosis with defined reliability by a diagnosing system (SDG) on technical condition of marine combustion engines, especially main engines. It was shown that development of the final diagnosis, the so-called initial operation diagnosis, on the operational usability (fDG on PEx) of a main engine in particular, is not possible without prior development of...
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Smartphone-Assisted and Optical Quantification of Copper and Glucose Using Palm Wine-Tailored Carbon Dots and Their Multiple Logic Gate Application
PublicationIn this work, potassium, sulfur, nitrogen, and chlorine self-doped carbon dots (CDs) were hydrothermally synthesized using palm wine as a carbon source. The palm wine-derived CDs (PW-CDs) are amorphous in nature and displayed an average particle size of 4.19 ± 0.89 nm. The as-synthesized CDs are used to fabricate a photoluminescent sensing probe to simultaneously detect Cu2+ and glucose via the “Turn ON−OFF−ON” mechanism. The PL...
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Activated sodium percarbonate-ozone (SPC/O3) hybrid hydrodynamic cavitation system for advanced oxidation processes (AOPs) of 1,4-dioxane in water
PublicationHydrodynamic cavitation (HC) was employed to activate sodium percarbonate (SPC) and ozone (O3) to degrade recalcitrant 1,4-dioxane. The degradation efficiency > 99 % with a rate constant of 4.04 × 10−2 min−1 was achieved in 120 min under the optimal conditions of cavitation number (Cv) 0.27, pH 5, molar ratio of oxidant to pollutant (rox) 8, ozone dose of 0.86 g h−1 under 25 ± 2 °C with initial concentration of 1,4-dioxane 100...
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Comparative study of high‑pressure fluid flow in densely packed granules using a 3D CFD model in a continuous medium and a simplified 2D DEM‑CFD approach. Granular Matter
PublicationIzotermiczny ściśliwy jednofazowy przepływ cieczy przez niejednorodną masę ziarnistą składającą się z gęsto upakowanych zachodzących na siebie kul imitujących skałę pod wysokim ciśnieniem zbadano numerycznie przy użyciu dwóch różnych podejść. Pierwsze podejście zwane pełnym modelem 3D CFD stosowało metodę skończonych objętości (FVM) do rozwiązania uśrednionego równania Naviera-Stokesa zakładając model naprężeń Reynoldsa (BSL) w...
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Recykling krzemu w przemyśle fotowoltaicznym
PublicationKrzem jest obecnie materiałem najchętniej używanym do produkcji urządzeń fotowoltaicznych, będących w stanie przetwarzać energię promieniowania słonecznego w sposób bezpośredni na energię elektryczną. Problemem są jednak nadal wysokie koszty wytwarzania krzemu, odpowiedniego do zastosowań w przemyśle fotowoltaicznym. Opracowanie efektywnych metod, umożliwiających skuteczne zagospodarowanie powstających na każdym etapie produkcji...
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Sample preparation for gas chromatographic determination of halogenated volatile organic compounds in environmental and biological samples
PublicationPodstawowym elementem przygotowania próbek środowiskowych i biologicznych do analizy jest etap izolacji i/lub wzbogacania polegający na przeniesieniu analitów z matrycy pierwotnej charakteryzującej się złożonym i często zmiennym składem (próbka oryginalna) do matrycy wtórnej z równoczesnym usunięciem substancji przeszkadzających (izolacja)i zwiększeniem stężenia analitów do poziomu powyżej granicy oznaczalności stosowanego przyrządu...
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Influence of Fragment Size on the Time and Temperature of Ethylene Vinyl Acetate Lamination Decomposition in the Photovoltaic Module Recycling Process
PublicationPhotovoltaics is a commercially available and reliable technology with significant potential for long-term growth in nearly all global regions. Several research institutes and companies are working on recycling concepts for thin film modules and modules with crystalline cells. The establishment of recycling and reuse technologies appropriate and applicable to all photovoltaics (PV) modules is a key issue to be addressed as part...
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Smart Virtual Bass Synthesis Algorithm Based on Music Genre Classification
PublicationThe aim of this paper is to present a novel approach to the Virtual Bass Synthesis (VBS) algorithms applied to portable computers. The proposed algorithm employed automatic music genre recognition to determine the optimum parameters for the synthesis of additional frequencies. The synthesis was carried out using the non-linear device (NLD) and phase vocoder (PV) methods depending on the music excerpt genre. Classification of musical...
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Materials Design for the Titanium Scaffold Based Implant
PublicationThe main objective of here presented research is a design the scaffold/porous titanium(Ti) alloy based composite material demonstrating better biocompatibility, longer lifetime andbioactivity behaviour for load-bearing implants. The development of such material is proposed bymaking a number of consecutive tasks. Modelling the mechanical, biomechanical and biologicalbehavior of porous titanium structure and an elaboration of results...
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Materials Design for the Titanium Scaffold Based Implant
PublicationThe main objective of here presented research is a design the scaffold/porous titanium(Ti) alloy based composite material demonstrating better biocompatibility, longer lifetime andbioactivity behaviour for load-bearing implants. The development of such material is proposed bymaking a number of consecutive tasks. Modelling the mechanical, biomechanical and biologicalbehavior of porous titanium structure and an elaboration of results...
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The Issue of Shading Photovoltaic Installation Caused by Dust Accumulation on the Glass Surface
PublicationThe issue of accumulation of dust and other pollutants on the surface of photovoltaic modules was thoroughly analysed over the years. One of the first surveys in this field of knowledge linked pollutant accumulation on the module surface with transmittance loss of its glass covering, which leads to lessened amount of solar radiation reaching solar cells. First stage of this accumulation process is linear transparency loss, and second...
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Sposób wytwarzania nawierzchni drogowej asfaltowej
InventionsCzarna nawierzchnia asfaltowa osiąga w południe latem temperaturę około 70 stopni C. Temperatura ta utrzymuje się przez kilka godzin dziennie, co przy wzmożonym ruchu drogowym prowadzi do mięknięcia i płynięcia mieszanek asfaltowych i mineralno-asfaltowych, powstawania kolein, muld i innych uszkodzeń mechanicznych. Przedmiotem wynalazku jest sposób stabilizacji temperatury asfaltu, który ma zapobiec powstawaniu opisanych...
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Re-use of photovotaic [i.e. photovoltaic] crystalline silicon solar cells - technological possibilities
PublicationSystemy fotowoltaiczne są stosowane na całym świecie jako niezawodne i wydajne układy zasilania dla zastosowań przemysłowych, komunalnych i komercyjnych. Średni czas eksploatacji modułów fotowoltaicznych wynosi ponad 25 lat. Wyeksploatowane moduły oraz te, które uległy uszkodzeniu, są obecnie przeważnie składowane na wysypiskach jako odpady przemysłowe lub komunalne, np. jako szkło lub materiał rozbiórkowy, co było dopuszczalne...
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Zastosowanie superkondensatorów w autonomicznych systemach fotowoltaicznych
PublicationSuperkondensatory (ang. supercapacitors, ultracapacitors, double-layer capacitors, gold capacitors and power capacitors) stanowią istotną nowość w energetyce prądu stałego, zwłaszcza w dziedzinie magazynowania i oddawania energii.Przy ogólnych cechach zbliżonych do cech akumulatorów superkondensatory wyróżniają się nieosiągalną dla akumulatorów zdolnością do szybkiego ładowania prądem o dużym natężeniu oraz do chwilowego, jeszcze...
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Recykling i ponowne użycie elementów systemów fotowoltaicznych = Recycling and reuse treatment of photovoltaic systems
PublicationSystemy fotowoltaiczne są stosowane na całym świecie jako niezawodne i wydajne układy zasilania zarówno w przemyśle, budownictwie, jak i w urządzeniach codziennego użytku. Średni czas eksploatacji modułów fotowoltaicznych wynosi ponad 25 lat. Wyeksploatowane moduły oraz te, które uległy uszkodzeniu, są obecnie przeważnie składowane na wysypiskach jako odpady przemysłowe lub komunalne. Zagadnienie zagospodarowania zużytych elementów...
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Music genre classification applied to bass enhancement for mobile technology
PublicationThe aim of this paper is to present a novel approach to the Virtual Bass Synthesis (VBS) algorithms applied to portable computers. The proposed algorithm is related to intelligent, rule-based setting of synthesis parameters according to music genre of an audio excerpt. The classification of music genres is automatically executed employing MPEG 7 parameters and the Principal Component Analysis method applied to reduce information...
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5-Thiocyanato-2′-deoxyuridine as a possible radiosensitizer: electron-induced formation of uracil-C5-thiyl radical and its dimerization
PublicationIn this work, we have synthesized 5-thiocyanato-2′-deoxyuridine (SCNdU) along with the C6-deuterated nucleobase 5-thiocyanatouracil (6-D-SCNU) and studied their reactions with radiation-produced electrons. ESR spectra in γ-irradiated nitrogen-saturated frozen homogeneous solutions (7.5 M LiCl in H2O or D2O) of these compounds show that electron-induced S–CN bond cleavage occurs to form a thiyl radical (dU-5-S˙ or 6-D-U-5-S˙) and...
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Verification of the Parameterization Methods in the Context of Automatic Recognition of Sounds Related to Danger
PublicationW artykule opisano aplikację, która automatycznie wykrywa zdarzenia dźwiękowe takie jak: rozbita szyba, wystrzał, wybuch i krzyk. Opisany system składa się z bloku parametryzacji i klasyfikatora. W artykule dokonano porównania parametrów dedykowanych dla tego zastosowania oraz standardowych deskryptorów MPEG-7. Porównano też dwa klasyfikatory: Jeden oparty o Percetron (sieci neuronowe) i drugi oparty o Maszynę wektorów wspierających....
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Correlation between the Reactivity and Spectroscopic Properties of N-Substituted Secondary Thioamides. New Intramolecular N• •H+• •N Binding Approach and Proton Complexes Based on Thioamide Ligation
PublicationFrom a comparison of chem. shifts and wavenumbers of several secondary thioamides and amides having monocationic substituents attached to thiocarbamoyl or carbamoyl groups by a polymethylene chain, new intramol. unconventional N···H+···N H bonding effects were discovered. It is argued that the CH2-N rotation is hindered and two +H···NHMe nonequiv. protons occur in a proton spectrum of hydrochloride RCH2C(S)NH(CH2)3NHMe-HCl...
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Underground Water Level Prediction in Remote Sensing Images Using Improved Hydro Index Value with Ensemble Classifier
PublicationThe economic sustainability of aquifers across the world relies on accurate and rapid estimates of groundwater storage changes, but this becomes difficult due to the absence of insitu groundwater surveys in most areas. By closing the water balance, hydrologic remote sensing measures offer a possible method for quantifying changes in groundwater storage. However, it is uncertain to what extent remote sensing data can provide an...
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Effects of liquid phase modification on the performance of biotrickling filters
Open Research DataDataset presents the effects of liquid phase modification on the biotrickling filtration (BTF) performance of air polluted with toluene, ethylbenzene, xylene and styrene.
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Analysis of airborne metal containing particles with EDX/EDS detectorsin electron microscopes
PublicationIn years 2006-2010 particulate matter analysis was undertaken for dust samples collected from Gdansk and London area in orderto compare their morphology and composition. Part of those studies was devoted to analysis of particulate matter (PM) bearingmetals. Characterization of the morphology and size of the particles collected onto the filters was performed using a scanning electronmicroscope (SEM) and transmission electron microscope...
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Autonomiczne hybrydowe systemy fotowoltaiczne wspomagane ogniwami paliwowymi
PublicationW większości krajów świata promieniowanie słoneczne charakteryzuje się dużą zmiennością zarówno w cyklu dobowym, miesięcznym jak i rocznym.Fakt ten zmusza projektantów autonomicznych systemów fotowoltaicznych do zwiększania ilości modułów, zwiększania mocy regulatorów oraz pojemności akumulatorów, a co za tym idzie do wzrostu ceny instalacji PV.Aby rozwiązać te problemy stosuje się fotowoltaiczne systemy hybrydowe, w których generatory...
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Hydration of Carboxylate Anions: Infrared Spectroscopy of Aqueous Solutions
PublicationHydratacja anionów karboksylanowych w roztworach wodnych ich soli sodowych została zbadana przy wykorzystaniu spektroskopii FTIR z zastosowaniem cząsteczki HDO jako sondy molekularnej. Do wyznaczenia widm wody zaburzonej przez rozpuszczalnik wykorzystano ilościową wersję metody widm różnicowych. Widma te wykazują dwa pasma składowe przy ok. 2550 i ok. 2420 cm-1. Pasma te przypisano grupie -COO- anionu R-COO- (R = H, CH3, C2H5),...
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Empirical analysis of tree-based classification models for customer churn prediction
PublicationCustomer churn is a vital and reoccurring problem facing most business industries, particularly the telecommunications industry. Considering the fierce competition among telecommunications firms and the high expenses of attracting and gaining new subscribers, keeping existing loyal subscribers becomes crucial. Early prediction of disgruntled subscribers can assist telecommunications firms in identifying the reasons for churn and...
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Sampling-based novel heterogeneous multi-layer stacking ensemble method for telecom customer churn prediction
PublicationIn recent times, customer churn has become one of the most significant issues in business-oriented sectors with telecommunication being no exception. Maintaining current customers is particularly valuable due to the high degree of rivalry among telecommunication companies and the costs of acquiring new ones. The early prediction of churned customers may help telecommunication companies to identify the causes of churn and design...
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Design advantages and analysis of a novel five-phase doubly-fed induction generator
PublicationPurpose – The purpose of this paper is to provide an analysis of the performance of a new five-phase doubly fed induction generator (DFIG). Design/methodology/approach – This paper presents the results of a research work related to fivephase DFIG framing, including the development of an analytical model, FEM analysis as well as the results of laboratory tests of the prototype. The proposed behavioral level analytical model is based...
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Long term measurements of PM1, PM2.5, PM10 and NO2 in open-air at Gdansk (Poland) area using low-cost sensors together with the reference results
Open Research DataThe measurements results of open-air measurements made using the following low-cost sensors: particulate matter (PM) sensor SPS30 from Sensirion, NO2 electrochemical sensor SGX-7NO2 from SGX Sensortech, NO2 electrochemical sensor 7E4-NO2 from SemaTech, compact MOS air quality sensor MiCS 2714 from SGX Sensortech, BME280 (Bosch) environmental sensor...
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Engineering TADF, Mechanochromism, and Second Harmonic Up- conversion Properties in Regioisomeric Substitution Space
PublicationThis research article explores the distinct TADF efficiency of three donor-acceptor based regio-isomers: DPAOCN (ortho- isomer), DPAMCN (meta-isomer), and DPAPCN (para-isomer). DPAPCN exhibits maximum TADF efficiency in both solution and solid-state with an impressive reverse inter-system crossing (RISC) rate of ~ 106 s-1; the underlying cause being the minimum singlet-triplet splitting energy or ∆EST and maximum SOC (spin-orbit...
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Przyszłość fotowoltaiki - instalacje zintegrowane z budynkiem (BIPV). Cz. 2
PublicationSystemy fotowoltaiczne zintegrowane z budynkiem (BIPV) są to integralne elementy konstrukcyjne budynku, służące do zasilania w energię elektryczną. Bezpośrednie lub rozproszone światło promieniowania słonecznego, oświetlając ogniwa słoneczne, wchodzące w skład instalacji, indukuje efekt fotowoltaiczny, generując stałe napięcie elektryczne. Napięcie to może być wykorzystane bezpośrednio do zasilania urządzeń, ładowania akumulatorów...
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Single-Phase 15-Level Switched-Capacitor Boost Multilevel Inverter Topology for Renewable Energy Applications
PublicationGalvanic isolation is a vital part of a grid-connected solar PV system. With the growth of multilevel inverters for grid-connected applications, the multilevel inverters having isolation are not sufficiently discussed in the literature. In this paper, a 15-level isolated multilevel inverter topology requiring only thirteen switches is proposed. The envisaged configuration includes two cells, designated as upper and lower cells....
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Game theory-based virtual machine migration for energy sustainability in cloud data centers
PublicationAs the demand for cloud computing services increases, optimizing resource allocation and energy consumption has become a key factor in achieving sustainability in cloud environments. This paper presents a novel approach to address these challenges through an optimized virtual machine (VM) migration strategy that employs a game-theoretic approach based on particle swarm optimization (PSO) (PSO-GTA). The proposed approach leverages...
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Real-time isothermal DNA amplification monitoring in picoliter volumes using an optical fiber sensor
PublicationRolling circle amplification (RCA) of DNA can be considered as a great alternative to the gold standard polymerase chain reaction (PCR), especially during this pandemic period, where rapid, sensitive, and reliable test results for hundreds of thousands of samples are required daily. This work presents the first research to date on direct, real-time and label-free isothermal DNA amplification monitoring using a microcavity in-line...
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Essential oils as potential anti-staphylococcal agents
PublicationAntibiotic therapy of staphylococcal mastitis is characterized by significantly lower cure rates compared to infections caused by other microorganisms. Thus, it is necessary to search for new, alternative, non-antibiotic agents that are effective in the eradication of these bacteria. The aim of our research was to investigate the antimicrobial, especially anti-staphylococcal potential of a large collection (n=36) of essential oils...
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Cross-validation for triplets of HRV and BPV indices based on ordinal patterns in differentiating OSA patients from healthy controls
Open Research DataResults of cross-validation for triplets of HRV and BPV indices based on ordinal patterns, as described in the paper “Differentiating patients with obstructive sleep apnea from healthy controls based on heart rate–blood pressure coupling quantified by entropy-based indices” by P. Pilarczyk, G. Graff, J.M. Amigó, K. Tessmer, K. Narkiewicz, B. Graff.
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Cross-validation for triplets of classical HRV and BPV indices in differentiating OSA patients from healthy controls
Open Research DataResults of cross-validation for triplets of classical HRV and BPV indices, as described in the paper “Differentiating patients with obstructive sleep apnea from healthy controls based on heart rate–blood pressure coupling quantified by entropy-based indices” by P. Pilarczyk, G. Graff, J.M. Amigó, K. Tessmer, K. Narkiewicz, and B. Graff.
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Jarosław Ziętarski dr
PeopleJarosław Ziętarski is a lecturer (PhD) in the Department of Finance at the Faculty of Management and Economics of the Gdańsk University of Technology. He has his own channel on the youtube platform called "FAT CAT Financial Education" where he popularizes knowledge in the field of management accounting. He was on the organizing committee of the 28th Annual Multinational Finance Society Conference. Courses taught: Introduction...
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Switching Regulation in the Control of 5-Phase Permanent Magnet Synchronous Motor Fed by 3×5 Direct Matrix Converter
PublicationMatrix converter is an AC-AC direct power converter comprising of an array of bi- directional switches. It does not require an intermediate DC-link and allows sinusoidal output waveforms with varying amplitudes and frequencies. The configuration of these bi- directional switches decides the number of inputs and outputs...
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Machine Learning Assisted Interactive Multi-objectives Optimization Framework: A Proposed Formulation and Method for Overtime Planning in Software Development Projects
PublicationMachine Learning Assisted Interactive Multi-objectives Optimization Framework: A Proposed Formulation and Method for Overtime Planning in Software Development Projects Hammed A. Mojeed & Rafal Szlapczynski Conference paper First Online: 14 September 2023 161 Accesses Part of the Lecture Notes in Computer Science book series (LNAI,volume 14125) Abstract Software development project requires proper planning to mitigate risk and...
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Investigating trip and parking characteristics of hospitals: A case study from Tri-City, Poland
PublicationThis research aims to investigate public hospitals’ trip and parking characteristics based on the study conducted in Poland in September 2021 on the example of the Tri-City agglomeration. The main objective of the research was to build models of the relationship between the number of trips during peak transport hours and the number of beds. The second research element was the analysis of transport behavior in these areas. The research...
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Effects of CO2 and utilization of spent trickling liquid towards plant growth
Open Research DataDataset presents the results of biomass yield for Phaseolus vulgaris pot cultures watered with diluted trickling liquid from biotrickling filtration experiments with or without additional CO2 in air by means of introducting post-biofilter air to the plant culture.
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Opracowanie i wprowadzenie nowoczesnego systemu utrzymania ruchu urządzeń opartego na strategii planowo – zapobiegawczej na obiekcie offshore
PublicationW pracy przedstawiono metodykę utrzymania ruchu maszyn i urządzeń na obiekcie offshore. Opracowany autorski system utrzymania ruchu, który został wdrożony na morskiej platformie wydobywczej „Petrobaltic” gdzie do przesyłu i przetwarzania danych wykorzystano dostępną infrastrukturę informatyczną. Założenia realizowano z wykorzystaniem metod naukowych takich jak analiza case study, metody eksperckie i inne. Pracę zrealizowano w ośmiu...