Search
Catalog Publications
Publications starting with: S clear
Filters
total: 6187
displaying 1000 best results Help
Catalog Publications
Year 2025
-
Scalable Multiport DC-DC Converter for Bidirectional EV Charging in DC Traction Grids
PublicationThe limited availability of public Electric Vehicle (EV) charging infrastructure poses a significant challenge to EV adoption in urban areas, that requires significant economic expenses. One potential solution to mitigate the problem is utilizing the existing traction DC grid infrastructure for EV charger connections. Such solution allows exploiting already existing traction substation equipment for both EV charging and powering...
-
SDN Controller for Optical Network Control
PublicationThe ability of centralized programming flow tables in switches and routers to perform programmable resource control and management from the central controller under the Software Defined Networking (SDN) concept has introduced a new approach to controlling and managing network resources. The main principles of the SDN concept, as defined by the Open Networking Foundation (ONF), apply primarily to packet networks, making the usage...
-
Seasonal meat stock demand used comparison of performance smoothing-average forecasting
Publication -
Secondary Structure in Free and Assisted Modeling of Proteins with the Coarse-Grained UNRES Force Field
PublicationSecondary structure is a solid scaffold on which the three-dimensional structure of a protein is built. Therefore, care must be taken to reproduce the secondary structure as accurately as possible in the simulations of protein systems. In this chapter, we summarize the physics-based energy terms that govern secondary-structure formation, the auxiliary restraints on secondary structure derived from bioinformatics and from the experimental...
-
Selecting an Applicable Cybersecurity Assessment Framework: Qualitative Metrics-Based Multiple-Factor Analysis
PublicationRecently, a survey of cybersecurity assessment methods focused on general characteristics was conducted. Among its major findings, it revealed the methods’ adoption issues. This paper presents a follow-up to the study. It provides an in-depth analysis of the methods’ adoption-related properties based on qualitative metrics. As a result, the proposals which demonstrate a higher adoption potential were identified. The methods are...
-
Selecting an inverter for a PV micro-installation
PublicationThe article describes recommendations related to the optimal selection of inverters for PV micro-installations. It presents different types of inverters used in PV installations depending on their type and power. Regardless of the case, attention should be paid to the maximum voltage and input current of the device. However, the appropriate quality of the inverter and its compliance with applicable regulations, as evidenced by...
-
Selection of the technology of repair works of concrete industrial floors in view of their degree of technical dysfunctions
PublicationConcrete floors are among the elements in construction facilities whose design requires engineering experience, workmanship requires the maintenance of a technological regime, while during their operation it is necessary to conduct periodic repairs. They are most often used as working and communication space in industrial facilities. Regardless of the place of installation, concrete...
-
Selective Enrichment of Partial Denitrifying Bacteria Enabling High Nitrite Production under Stepwise Elevated Salinity: Sludge Granulation and Metagenomic Mechanisms
PublicationThe innovative partial denitrification/anammox (PD/A) process holds significant promise for treating industrial wastewater containing nitrate, yet it may encounter the challenge of high salinity’s inhibitory impact. In this study, a nitrite-producing PD process, crucial for stable and efficient anammox, was developed. The effect of salt on performance was thoroughly assessed, and metabolic mechanisms were dissected. Results showed...
-
Selective light-activation of sensing regions in hybrid Au-graphene-TiO2 chemiresistive gas sensor
PublicationControlling the sensing activity of novel gas sensors is a desirable and simultaneously challenging issue. In this work, ink-printed graphene-based hybrid sensors are demonstrated, and the possibility of selective activation of gas-sensitive components with light is presented. Graphene flakes were mixed with TiO2 nanoparticles and decorated with Au nanoparticles to produce sensors of photocatalytic and plasmonic properties (Au-G-TiO2)....
-
Self-Equalized Generalized Chebyshev Microwave Filters in Inline Topology Using Double-Zero Single-Pole Frequency-Variant Coupling Networks
PublicationThe objective of this article is to demonstrate the applicability of frequency-dependent couplings (FDCs) to the design of self-equalized, generalized Chebyshev microwave bandpass filters (BPFs) in inline coupled-resonator circuit topologies. To this aim, a family of frequency-variant reactive coupling (FVRC) networks with double-zero single-pole (DZSP) characteristics is exploited, where the zeros can be either positioned at the...
-
Self-Isolation in MIMO Array Using Mode Diversity
PublicationA new isolation technique is proposed for multiple-input multiple-output (MIMO) microstrip patch antenna (MPA) arrays utilizing mode’s diversity. Typically, similar modes are excited in each element of the MIMO array. However, the proposed MIMO array uses two elements of different sizes excited in distinct modes at the same frequency. It is found that the TM01 mode excited in one MPA, a hybrid mode (TM03+TM21) is induced in the...
-
Self-Isolation in MIMO Microstrip Patch Arrays Using Annular Via-Based Mode Conversion
PublicationThis paper presents a novel self-isolation technique for multiple-input multiple-output (MIMO) microstrip patch antenna (MPA) arrays using annular via-based mode conversion. The proposed approach transforms the TM20 mode into a hybrid TM20+TM01 mode, enabling high isolation in both E-plane and H-plane coupled configurations without requiring additional decoupling structures. A compact 2 × 1 single-fed antenna array is designed...
-
Self-testing tilted strategies for maximal loophole-free nonlocality
PublicationThe degree of experimentally attainable nonlocality, as gauged by the loophole-free or effective violation of Bell inequalities, remains severely limited due to inefficient detectors. We address an experimentally motivated question: Which quantum strategies attain the maximal loophole-free nonlocality in the presence of inefficient detectors? For any Bell inequality and any specification of detection efficiencies, the optimal strategies...
-
Self-testing tilted strategies for maximal loophole-free nonlocality
PublicationThe degree of experimentally attainable nonlocality, as gauged by the loophole-free or effective violation of Bell inequalities, remains severely limited due to inefficient detectors. We address an experimentally motivated question: Which quantum strategies attain the maximal loophole-free nonlocality in the presence of inefficient detectors? For any Bell inequality and any specification of detection efficiencies, the optimal strategies...
-
Sensing of NO2, NH3, and C3H6O by graphene-Si Schottky diode at chosen voltage biases
PublicationOur research aims to propose a selective gas sensor based on a single graphene-silicon Schottky junction. By polarizing the sensor with selected voltage, we move between different regions of its gas sensitivity dependent on the lighting conditions. Our results show that low detection limits (36 ppb for NO2, 238 ppb for NH3, and 640 ppb for C3H6O) are obtained under UV irradiation at -0.4 V; however, a light source power supply...
-
Separation of Simultaneous Speakers with Acoustic Vector Sensor
PublicationThis paper presents a method of sound source separation in live audio signals, based on sound intensity analysis. Sound pressure signals recorded with an acoustic vector sensor are analyzed, and the spectral distribution of sound intensity in two dimensions is calculated. Spectral components of the analyzed signal are selected based on the calculated source direction, which leads to a spatial filtration of the sound. The experiments...
-
Separatory jednolite i składane docierarek tarczowych do płaszczyzn
PublicationOmówiono rodzaje układów wykonawczych docierarek do obróbki powierzchni płaskich i płasko-równoległych. Podano zasady projektowania separatorów przedmiotowych dla docierarek jedno- i dwutarczowych. Omówiono stosowane materiały na separatory oraz zamieszczono przykłady konstrukcji separatorów jednolitych i modułowych.
-
Serverless–edge computing with mobile document agents
PublicationExchange of documents as email attachments in collaborative decision making lacks support for keeping track ofthreads of performed activities, which often leads to email overload and strain. A proactive document email attach-ment linking the passive content and active services could build reproducibility in collaborative processes, even ifworkers may tend to exchange emails indiscriminately. The key role in achieving this is...
-
Shape engineering of Janus-like nanoparticles based on SrTiO3 perovskite
PublicationStrontium titanate (SrTiO3) perovskite is a promising photocatalyst for hydrogen evolution, a critical process for green energy production. The efficiency of photocatalytic H2 generation can be significantly enhanced through surface modification with noble metals, where the particle size and distribution play a crucial role. In this study, SrTiO3 particles of two distinct size ranges small (30–75 nm, close to cubic) and large...
-
Shaping the department of communication with different roles in a team - case study
PublicationABSTRACT: The article presents an introduction to the concept of the roles in different teams based on the available literature on the subject. The article describes comprehensive approach to different roles that create efficient international teams that can be used in management practice. The publication begins with an indication of communication in the light of current literature...
-
Shaping the flow characteristics of a proportional directional valve
PublicationThis article presents a methodology for designing control edges for proportional hydraulic directional valves for the use in hydraulic governor systems of hydro turbines requiring high flow rates. On the basis of multivariate CFD studies, the optimal shape of control edges was determined, ensuring the achievement of a proportional relationship between the increase in flow rate and the increase in opening of the spool located in...
-
Shear Strength of Sand: Integrated Analysis of Initial Porosity and Stress Effects
Publication -
Ship Magnetic Signature Classification Using GRU-Based Recurrent Neural Networks
PublicationMagnetic signatures represent the magnetic field generated by a ship’s ferromagnetic components and provide valuable information for identifying vessels not only in naval operations, but also in civil passages. The topic of accurate modelling of these signatures is relevant to this day, but also the complexity of the model necessary to accurately predict the ship’s magnetic field. This paper presents the implementation of a deep,...
-
Side-on phosphinoboryl platinum(ii) complexes
PublicationThe oxidative addition of bromo(phosphino)boranes to platinum(0) compounds enabled the formation of platinum(II) complexes with unprecedented side-on coordination of the boryl ligand. The resulting complex underwent a reaction with carbon dioxide, leading to the insertion of a CO2 molecule into the B–P bond of the phosphinoboryl ligand.
-
Silica-coated admixtures of bismuth and gadolinium oxides for 3D printed concrete applications: Rheology, hydration, strength, microstructure, and radiation shielding perspective
PublicationThis study examines the impact of replacing up to 5 vol% of Portland cement (PC) with both pristine mixture of Bi2O3/Gd2O3 (BG) and silica-coated BG particles. Two different types of silica coatings, each with varying synthesis methods, were applied to coat the BG structures, and their impact on the fresh, hardened, microstructure and radiation-shielding performances of the 3D printed...
-
Silver and Silver/Sodium Bisphosphonate Salts: Rare Examples of Molecular Solid Solutions and Their Biological Activity as Dual-Action Compounds
PublicationBisphosphonates (BPs) are an important treatment for osteoporosis and bone metastases due to their low toxicity, high thermostability, and the ability to inhibit bone resorption. Notably, BPs like alendronate, which contain a primary amine group, exhibit potent antiresorptive and antiangiogenic properties. Recent studies have focused on enhancing the BP properties by incorporating bioactive metals to increase their therapeutic...
-
Simulation of energy management system using model predictive control in AC/DC microgrid
PublicationThis research seeks to enhance energy management systems (EMS) within a microgrid by focusing on the importance of accurate renewable energy prediction and its strong correlation with load curtailment. Analyzing the precision of disturbance predictions, reveals that predicting one hour in advance is more effective than immediate predictions or those made several hours beforehand. Furthermore, the study investigates scheduling load...
-
Slamming and dynamic loads of marine propellers operating under partially submerged conditions
PublicationThis paper presents an investigation into the dynamic loads acting on the blades of propellers working in partially submerged conditions. In partially submerged conditions, the average thrust and torque is significantly reduced, while the variations in thrust and torque are much increased. The current study investigates whether impact-type loads on the propeller blades in surface-piercing condition might result in large torque...
-
Slip Compensation Technique In Five-Phase Induction Motors Drive System
PublicationThe article presents a slip compensation method for traditional scalar (V/f) control of a five-phase induction motor. The proposed control method uses the possibility of injecting the third harmonic of voltage to increase the motor’s electromagnetic torque. The solution is characterized by both the simplicity of scalar control and improved speed control efficiency. The paper presents the PLECS simulation results and describes the...
-
Sobol’ sensitivity analysis of a 1D stochastic elasto-plastic seismic wave propagation
PublicationA novel numerical framework for the Sobol’ sensitivity analysis of 1D stochastic elasto-plastic wave propagation is proposed and evaluated. The forward propagation of uncertain input motions through uncertain elasto-plastic soils and structures is often conducted using the finite element method (FEM) together with the Monte Carlo simulation. However, it is computationally much more efficient to use the stochastic elasto-plastic FEM...
-
Sociocultural and Identity Dynamics Reflected in the Choice of Names in School Textbooks
Publication -
Solvent Selection as a Key Factor in the Performance of Semitransparent Heterojunctions Composed of Hydrogenated Nanotubes and Bismuth Sulfides
PublicationResearch on titanium nanotubes modified with metal sulfides, particularly bismuth sulfide (Bi2S3), aims to create heterostructures that efficiently absorb sunlight and then separate photogenerated charge carriers, thereby enhancing the energy conversion efficiency. This study shows a key role of solvent used for sulfide and bismuth salt solutions used during successive ionic layer adsorption and reaction (SILAR) onto the morphology,...
-
SoundShape – Headphone Transfer Function Database
PublicationThis article introduces the SoundShape database, which contains measured headphone transfer functions (HTFs). Details of the various stages of SoundShape’s implementation, including project assumptions, software used, and the measurement environment, are shown. The measurement process is explained. Moreover, the construction and processing of signal files within SoundShape are discussed. The AKtools script in MATLAB is employed...
-
Spatial allocation of nature-based solutions in the form of public green infrastructure in relation to the socio-economic district profile–a GIS-based comparative study of Gdańsk and Rome
PublicationWith increasing environmental and climate change threats to urban areas, Nature-based Solutions (NbS), including public greenery, are becoming integral components of green infrastructure (GI) networks. These solutions provide multiple benefits in different aspects, including stormwater management, enhanced air quality and improved societal well-being, offering cost-effective and adaptable alternatives to resource-intensive and...
-
Spatial allocation of nature-based solutions in the form of public green infrastructure in relation to the socio-economic district profile–a GIS-based comparative study of Gdańsk and Rome
Publication -
Spectrophotometric determination of chlorpyrifos in foodstuffs after vortex-assisted surfactant-enhanced emulsification microextraction using magnetic deep eutectic solvents: Analytical greenness profile
PublicationIn this work a novel and green vortex-assisted surfactant-enhanced emulsification microextraction (VA-SEEME) based on magnetic deep eutectic solvents (MDESs) was developed for the determination of chlorpyrifos in foodstuffs by UV-Vis spectrophotometric analysis. MDES (trihexyltetradecylphosphonium chloride: MnCl2: octanoic acid) was used as the extractant, non-ionic surfactant Tween-80 was used as an extraction medium, and ethanol...
-
Speech intelligibility improvement for public address systems in noisy environments based on automatic gain selection in octave bands
PublicationA method of speech intelligibility improvement in public address (PA) systems installed in reverberant acoustic spaces is proposed. The method is mainly intended for systems operating in high background noise levels. The algorithm is based on the near end listening enhancement approach. Signal-to-noise ratio (SNR) is evaluated in the octave frequency bands. Signal levels in the acoustic space are estimated using the measured impulse...
-
Stabilization Method for Speed Observer of Induction Machine
PublicationThis article proposes the speed estimation principles dedicated to the observer structures based on the machine mathematical model. The rotor speed is reconstructed based on the mathematical model of a machine by using both adaptive and nonadaptive schemes. The presented principle is generalized to the classical nonlinear system in the vector form and can be applied to induction machines. The proposed rotor speed reconstruction...
-
Stand-Alone Operation of Multi-Phase Doubly-Fed Induction Generator Supplied by SiC-Based Current Source Converter
PublicationThis paper investigates the performance of a five-phase silicon carbide (SiC)-based current-source converter (CSC) integrated with a Doubly Fed Induction Generator (DFIG) for wind energy applications. The study explores both healthy and faulty operation, focusing on system behavior under transient conditions and various load scenarios in stand-alone mode. A novel five-phase space vector PWM strategy in dual coordinate planes is...
-
Steering yeast-bacteria synergy by biochar to achieve enhanced endogenous ethanol-driven chain elongation
PublicationThe recovery of medium-chain carboxylic acids (MCCA) from waste streams through chain elongation (CE) aligns with a circular economy concept. However, the need for electron donor (ethanol) supplements and the challenges of enriching chain-elongating bacteria have limited its application. This study adopted biochar to steer a novel yeast fungi-bacteria mixed microbiome to drive CE during food waste fermentation. The effects of hydrochar...
-
'Step by Step' opieka nad projektem w Architecture Student Contest 2025 Students+Teacher, finał światowy Lyon, Francja - Top Ten
PublicationMiędzynarodowe Jury przyznało nagrody w 20. edycji Architecture Student Contest, w której udział wzięło ponad 200 uczelni z 33 krajów. Studenci z całego świata stworzyli projekty, stanowiące wyzwanie i wsparcie dla rozwoju peryferii miasta oraz wsi w regionie Nord-Isère we Francji, połączonych z ambicją ożywienia społeczności i zatrzymania młodych ludzi w regionie – w duchu hasła przewodniego tegorocznej odsłony konkursu. Dzięki...
-
Stimuli-responsive delivery systems using carbohydrate polymers: A review
PublicationCarbohydrate polymers, including Chitosan, Cellulose, Starch, Dextran, Pectin, Alginate, and Hyaluronic Acid, have been considered as stimuli-responsive biopolymers demonstrating significant potential for drug delivery approaches. Relying on the specific design and fabrication, such biopolymers are able to respond to fluctuations in pH, temperature, or enzymatic activity. This review investigates stimuli-responsive biopolymers,...
-
Stopnie alarmowe z ustawy o działaniach antyterrorystycznych – aspekt teoretyczny i praktyczny
PublicationCelem badań było uzyskanie odpowiedzi na pytanie: jaki wpływ na realizację zadań wynikających z wprowadzenia stopnia alarmowego (stopnia alarmowego CRP) ma przedłużający się czas jego obowiązywania. Dodatkowym celem artykułu byłoprzedstawienie wybranych, podstawowych informacji na temat stopni alarmowych i stopni alarmowych CRP. Autor sformułował hipotezę, że przedłużający się czas obowiązywania stopnia alarmowego, stopnia...
-
Strategies for feature-assisted development of topology agnostic planar antennas using variable-fidelity models
PublicationDesign of antennas for contemporary applications presents a complex challenge that integrates cognitive-driven topology development with the meticulous adjustment of parameters through rigorous numerical optimization. Nevertheless, the process can be streamlined by emphasizing the automatic determination of structure geometry, potentially reducing the reliance on traditional methods that heavily rely on engineering insight in the...
-
Strategies toward Green Deal implementation in the context of SCG reuse and recovery in the circular economy model
PublicationThe article explores the future outlook on integrating and using a resource database for the recovery and reuse of coffee industry residues, focusing on economic and environmental perspectives within the Circular Economy Model (CEM). With the continuous rise in global coffee consumption, the production of Spent Coffee Grounds (SCG) has also surged worldwide, presenting significant opportunities for resource recovery and recycling....
-
Structural Insights and Advanced Spectroscopic Characterization of Thiazolothiazoles: Unveiling Potential for Optoelectronic and Sensing Applications
PublicationThiazolothiazoles (TzTzs) are planar, π-conjugated heterocyclic compounds exhibiting unique structural and optoelectronic properties. In this study, a series of symmetrically substituted thiazolothiazole (TzTz) derivatives including imidazolyl, o-vanillyl, p-vanillyl, phenyl, thiazolyl, cinnamoyl, and trifluoromethylphenyl were synthesized and extensively characterized using X-ray crystallography (XRD), Fourier-transformed infrared...
-
Structural insights into fungal and human topoisomerase II with implications for in silico antifungal drug design
PublicationTopoisomerases are essential enzymes regulating DNA supercoiling and disentanglement, critical for genomic integrity. While topoisomerase inhibitors are well-established in anticancer and antibacterial chemotherapy, their potential as antifungal agents remains underexplored or even not proofed. This study investigates structural distinctions between Saccharomyces cerevisiae topoisomerase II (ScTopoII) and human topoisomerase IIα...
-
Structural patterns and cytotoxic activity of dinuclear Cu(II), Ni(II) and Cd(II) complexes with pyridine-based malonic acid dihydrazone
PublicationA dinuclear Cu(II) complex, [Cu2(L)(H2L)](ClO4)2·4H2O (Cu-1), with a condensation derivative of 2-acetylpyridine and malonic acid dihydrazide (H2L), was obtained through a direct synthesis. After recrystallization, the single-crystalline product was characterized by single crystal X-ray diffraction analysis, EPR, UV/Vis and IR spectroscopy. In the resulting dimeric Cu(II) complex, one ligand molecule is coordinated in its dianionic...
-
Structure, performance, and photooxidative stability of Mater-Bi/brewers' spent grain composites as a function of filler thermomechanical and chemical modification
PublicationNowadays, to provide a step towards circularity, the development of sustainable polymer composites should include the application of waste-based materials that can act not only as simple fillers, reducing the use of polymers but also as functional additives, limiting or eliminating the use of synthetic components. Herein, in the presented study, the main by-product of the brewing industry, brewers' spent grain (BSG), was applied...
-
Structure–property relationships and nanofiller‐induced hydro‐anti‐plasticization in polyhydroxyurethane/POSS hybrid composites
Publication