Filters
total: 5033
-
Catalog
- Publications 3658 available results
- Journals 28 available results
- Publishing Houses 5 available results
- People 276 available results
- Inventions 14 available results
- Projects 152 available results
- Research Teams 24 available results
- Research Equipment 1 available results
- e-Learning Courses 649 available results
- Events 30 available results
- Open Research Data 196 available results
displaying 1000 best results Help
Search results for: ALE
-
Recent advances in traffic optimisation: systematic literature review of modern models, methods and algorithms
PublicationOver the past few decades, the increasing number of vehicles and imperfect road traffic management have been sources of congestion in cities and reasons for deteriorating health of its inhabitants. With the help of computer simulations, transport engineers optimise and improve the capacity of city streets. However, with an enormous number of possible simulation types, it is difficult to grasp valuable, innovative solutions which...
-
Practical Eco-Driving Strategy for Suburban Electric Multiple Unit
PublicationIn this paper, a practical approach to velocity profile optimization for electric multiple unit was presented. The study focuses on a case of fast urban railway, which is a popular mean of transport across Tricity, Poland. Based on observations and measurements, a potential for improvement of energy efficiency by modifying the speed profile was recognized. In order to conduct necessary calculations, simulation model of railway...
-
A Qualitative Study on Non-functional Requirements in Agile Software Development
PublicationWidespread use of agile software development (ASD) methods can be observed nowadays. Non-functional requirements (NFRs) are often reported to be a problematic issue for agile projects, since ASD methods tend to neglect NFRs while focusing on incremental delivery of functional features. Despite that, only very few studies have explored the requirements engineering practices used in ASD and dedicated particularly to NFRs. Objective:...
-
Smart Cities Concept: Smart Mobility Indicator
PublicationThis work attempts to analyze problems resulting from the lack of possibility to assess the effectiveness of the implementation of “Smart Mobility” solutions, which represent one of the cornerstones of Smart Cities, from the point of view of city hall offices. The work presents existing Smart Mobility evaluation solutions, discusses their drawbacks, and then proposes a new indicator. The final part of the work presents assumptions...
-
Sundials of St Mary’s Church in Gdańsk / Zegary słoneczne kościoła pw. Wniebowzięcia Najświętszej Panny Marii w Gdańsku
PublicationThe paper presents contemporary research evidence of form, function and history of the sundials of St Mary’s Church in Gdańsk. The discussed sundials are located on the southern wall of the church transept. The sundial, which is believed to be made by Lorenzo Zachau in 1533, is placed on the west side of the western window, at the edge of the wall. The face of this sundial is separated by a horizontal line into two parts. The upper...
-
Identification, Assessment and Automated Classification of Requirements Engineering Techniques
PublicationSelection of suitable techniques to be used in requirements engineering or business analysis activities is not easy, especially considering the large number of new proposals that emerged in recent years. This paper provides a summary of techniques recommended by major sources recognized by the industry. A universal attribute structure for the description of techniques is proposed and used to describe 33 techniques most frequently...
-
Constant vs. Variable Efficiency of Electric Drive in Train Run Simulations
PublicationTrain run simulations, which focus on various power- and energy-oriented aspects, should reflect the losses in the electric powertrain. In general, the powertrain efficiency varies with respect to load and speed. Including this relation in simulation requires knowledge about detailed drivetrain parameters, which are often unavailable. This paper verifies the possibility to approximate the drivetrain efficiency in train run simulations...
-
Representing Process Characteristics to Increase Confidence in Assurance Case Arguments
PublicationAn assurance case is a structured, evidence-based argument demonstrating that a safety or other quality objective of a high integrity system is assured. Assurance cases are required or recommended in many industry domains as a means to convince the regulatory bodies to allow commissioning of such system. To be convincing, an argument should address all potential doubts and thus cover numerous additional issues, including the processes...
-
Wyzwania zarządzania strategicznego w perspektywie Smart City - blockchain
PublicationW pracy pokazano możliwość zastosowania technologii Blockchain w rzadko rozważa-nym dla niej środowisku jakim są urzędy miejskie realizujące koncepcję Smart City. Celem pracy nie jest opis technologii, a spojrzenie strategiczne na jej zastosowanie stąd, poza pod-stawowym opisem Blockchain i Smart City, przedstawiono zalety oraz wyzwania wdrażania Blockchain dla Smart City. Całość zilustrowano dwoma przykładami procesów, które obrazują...
-
Human awareness versus Autonomous Vehicles view: comparison of reaction times during emergencies
PublicationHuman safety is one of the most critical factors when a new technology is introduced to the everyday use. It was no different in the case of Autonomous Vehicles (AV), designed to replace generally available Conventional Vehicles (CV) in the future. AV rules, from the start, focus on guaranteeing safety for passengers and other road users, and these assumptions usually work during normal traffic conditions. However, there is still...
-
Shear band evolution phenomena in direct shear test modelled with DEM.
PublicationA direct shear test is widely used in the geotechnical engineering field. It is an easy and quick test to measure the shear properties of soil. This test often replaces more expensive and difficult tri-axial shear test. Despite that the direct shear test is known and used for a long time, it is still not well investigated at the grain scale. This paper deals with the micro behaviour of the cohesionless sand inside the direct shear...
-
Underwater acoustic communication system using broadband signal with hyperbolically modulated frequency
PublicationThe implementation of reliable acoustic underwater communication in shallow waters is a scientific and engineering challenge, mainly due to the permanent occurrence of the multipath phenomenon. The article presents the concept of a transmission system using a broadband signal with hyperbolically modulated frequency (HFM) to transmit data symbols and synchronize data frames. The simulation tests were carried out in channels with...
-
The role of sport in the Smart City concept
PublicationSport brings to cities innovative solutions that influence urban life, yet considerations about sport still rarely contribute to the development of the very popular smart city concept. This raises the question: what is the perception of sport in the city from the perspective of the smart city concept? One of the challenges of future urban policy is to provide initiatives that ensure the wellbeing and promote the model of a healthy...
-
An Overview of Sport and the Future Smart Cities
PublicationOne of the main challenges for future cities is to strengthen the role of people and their activities. Therefore, sport provides an opportunity to engage in physical activity, connecting citizens to the city. The question of how sport influences the development of cities and the concept of future smart cities arises. The aim of this study is to examine the relationship between sport and the concept of smart cities by identifying...
-
Poszukiwanie metody odbudowy oficyn gdańskich kamienic
PublicationNa przykładzie wybranego kwartału zabudowy Głównego Miasta w Gdańsku, przedstawiona została metoda tworzenia nowej zabudowy w historycznym mieście. W dotychczasowych koncepcjach odbudowy Gdańska była ona pomijana, gdyż wchodziła w głąb kwartału. W artykule przedstawiono także główne założenia proponowanej metody.
-
Theoretical and experimental study on scattering of low-energy electrons by dimethyl and diethyl ethers
PublicationWe report a joint theoretical and experimental investigation on low-energy electron scattering by dimethyl and diethyl ethers. The experimental elastic differential cross sections were measured at impact energies from 1 eV up to 30 eV and scattering angle range of 10◦ to 130◦. Theoretical elastic differential, integral and momentum-transfer cross sections are calculated at impact energies up to 30 eV, employing the Schwinger multichannel...
-
Monoubiquitinated Histone H1B Is Required for Antiviral Protection in CD4+T Cells Resistant to HIV-1
Publication -
Knowledge Management Approaches of Small and Medium-Sized KIBS Firms: a Descriptive Analysis of Four Countries
PublicationPurpose –There is evidence that small and medium sized enterprises (SMEs) do not manage knowledge the same way as large firms, and that they approach knowledge management (KM) in various ways. However, the literature on this topic is still scarce and fragmented. In order to fill this gap, the paper aims to single out and discuss the different features that characterize the approaches to KM adopted by small companies. Design/methodology/approach...
-
Synthesis, resolution, and chiroptical properties of hemicryptophane cage controlling the chirality of propeller arrangement of a C 3 triamide unit
Publication -
Chemical and magnetic functionalization of graphene oxide as a route to enhance its biocompatibility
Publication -
0D, 1D, 2D molybdenum disulfide functionalized by 2D polymeric carbon nitride for photocatalytic water splitting
Publication -
Fabrication and characterization of a TiBs@MCN cable-like photocatalyst with high photocatalytic performance under visible light irradiation
Publication -
Bifunctional Polymeric Carbon Nitride via Tuning Fabrication Conditions for Photocatalysis
Publication -
Mesoporous carbon/graphitic carbon nitride spheres for photocatalytic H2 evolution under solar light irradiation
Publication -
Updates in the Metabolism of Lactic Acid Bacteria
Publication -
Działania dla rozwoju zrównoważonej mobilności miejskiej w Gdyni
PublicationWspółczesne planowanie mobilności, ze względu na konieczność silnego zaangażowania interesariuszy, szerokich konsultacji społecznych i przygotowania kompleksowego planu, jest procesem niezwykle złożonym i czasochłonnym. W odróżnieniu od tradycyjnego planowania transportu proces ten powinien koncentrować się nie tylko na zapewnieniu lepszych warunków ruchu, ale przede wszystkim na dążeniu do zapewnienia jak najwyższej jakości życia...
-
Microwave-assisted hydrothermal synthesis and electrochemical studies of α- and h-MoO3
Publication -
Large scale complementary solar and wind energy sources coupled with pumped-storage hydroelectricity for Lower Silesia (Poland)
Publication -
Enhancing the Effectiveness of the Diamond Metal Bond Instrument when Grinding High-Strength Materials
Publication -
Flexibles Fügen leichter Tragwerkstrukturen durch Einwalzen.
PublicationW artykule przedstawiono wyniki prac zmierzających do zbadania możliwości łączenia rur aluminiowych AlMgSi0,5 przez ich rozgniatanie nagniatakiem stosowanym do obróbki powierzchni wewnętrznych. Badania, ukierunkowane na przemysłowe wdrażanie alternatywnych metod łączenia rur w konstrukcjach lekkich, przeprowadzono w ramach niemieckiego programu SFB/TR10, kierowanego przez Uniwersytet w Dortmundzie.
-
Optimization of briquetting technology of fine-grained metallurgical materials based on statistical models of compressibility
Publication -
Basic ideas and advantages of the method of analytical regularization in wave optics: Overview
Publication -
Lasing modes of infinite periodic chain of quantum wires
Publication -
Effective mode volume of a natural mode of an open dielectric resonator with an active region
Publication -
Plasmon and structure resonances in the scattering of light by a periodic chain of silver nanocylinders
Publication -
Essentials and merits of the method of analytical regularization in computational optics and photonics
Publication -
Grating Resonances on Periodic Arrays of Sub-wavelength Wires and Strips: From Discoveries to Photonic Device Applications
Publication -
Periodicity-induced effects in the scattering and absorption of light by infinite and finite gratings of circular silver nanowires
Publication -
Regulacja aktywności syntazy glukozamino-6-fosforanu z Candida albicans – badania metodami obliczeniowymi
PublicationNiniejsza praca przedstawia wyniki badań, prowadzonych metodami obliczeniowymi, poświęconych enzymowi syntazie GlcN-6-P pochodzącemu z drożdży C. albicans. Enzym ten odpowiedzialny jest między innymi za biosyntezę kluczowych składników ściany komórkowej grzybów i bakterii, ma również wpływ na regulację metabolizmu glukozy. Przedstawione badania stanowią jeden z etapów poszukiwania molekularnego mechanizmu inhibicji, której eukariotyczna...
-
Gentiana asclepiadea exerts antioxidant activity and enhances DNA repair of hydrogen peroxide- and silver nanoparticles-induced DNA damage
PublicationExposure to high levels of different environmental pollutants is known to be associated with induction of DNA damage in humans. Thus DNA repair is of great importance in preventing mutations and contributes crucially to the prevention of cancer. In our study we have focused on quantitative analysis of Gentiana asclepiadea aqueous or methanolic extracts obtained from flower and haulm, their antioxidant potency in ABTS post-column...
-
The role of organic and mineral constituents on kerogen transformation ratio
PublicationThe main aim of this dissertation is to determine the role of mineral and organic matter constituents in kerogen transformation ratio. Practical aspects of the work include application of the results in the assessment of hydrocarbon production potential; to make process of hydrocarbon recovery more predictable consistent and efficient. The work used shale from the Vaca Muerta formation from the Nequen basin in Argentina. The formation...
-
Mercury intrusion porosimetry (MIP) results of cement pastes containing Bi2O3/Gd2O3 and silica-coated Bi2O3/Gd2O3 structures
Open Research DataMercury intrusion porosimetry (MIP) data - curves of cement pastes containing Bi2O3/Gd2O3 and silica-coated Bi2O3/Gd2O3 structures
-
Antiplasmodial activity of quinones: Roles of aziridinyl substituents and the inhibition of Plasmodium falciparum glutathione reductase
Publication -
The electrochemical impedance spectroscopy studies of cataphoretic-grown epoxy-based coatings
Open Research DataThe dataset contains electrochemical impedance spectroscopy spectra collected for epoxy-based cataphoretic coatings in order to determine the offered anti-corrosion protection. Particular spectra pertain to the coatings applied for the different magnitude of polarization potential imposed, namely 10V, 20V and 30V. The results were obtained within the...
-
Overproduction of CaMet15p native and His-tag versions.
Open Research DataEnzyme of fungal L-methionine biosynthetic pathway: O-acetylhomoserine sulfhydrylase (Met15p) could be exploited as molecular target for antifungal chemotherapy. The goal of the study was to obtain conditions optimal for protein production with the use of prokaryotic cells. The constructed expression plasmids, designed in three different versions: encoding...
-
Overproduction of CaStr2p native and His-tag versions.
Open Research DataEnzyme of fungal L-methionine biosynthetic pathway: cystathionine-γ-synthase (CaStr2p) could be exploited as molecular target for antifungal chemotherapy. The goal of the study was to obtain conditions optimal for protein production with the use of prokaryotic cells. The constructed expression plasmids, designed in three different versions: encoding...
-
Assay of Cystathionine-γ-synthase (CaStr2p) activity determination.
Open Research DataThe study aimed to obtain conditions optimal for the activity of Candida albicans cystathionine-γ-synthase (CaStr2p) determination. The selection of appropriate reaction conditions included the identification of the reaction buffer and its pH, substrate, and enzyme concentrations. The activity of Str2p was measured by the detection of decrease of the...
-
Mechanical, durability, depolluting and electrical properties of multifunctional mortars prepared with commercial or waste carbon-based fillers
PublicationCarbon-based fillers from industrial wastes and commercial ones were compared to improve the properties of lime-based mixes. As commercial fillers, graphene nanoplatelets and activated carbon were used, whereas as industrial wastes a char obtained by the gasification of biomasses and a used foundry sand were chosen. Carbon-based wastes were found to be a good cost-effective alternative to commercial carbon based fillers to increase...
-
Lattice Dynamics and Structural Phase Transitions in Eu2O3
Publication -
Carbon assimilation profiles of mucoralean fungi show their metabolic versatility
Publication