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Search results for: IMPACT OF NIGHTTIME LIGHTING
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Numerical Analysis of an Impact of Planned Location of Sewage Discharge on Natura 2000 Areas – The Dead Vistula Region Case Study
PublicationThis article presents results of an analysis of impact of a designed discharge of contaminated water into the Dead Vistula (Wisła Martwa) in the region of the Isthmus (Przesmyk) with the aim of determination of a possible effect of the pollution onto protected areas of Natura 2000 (bird habitats and sites, especially the Bird Paradise – Ptasi Raj) nature reserve. The analysis was conducted on the basis of the two-dimensional modelling...
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α-Pinene, 3-carene and d-limonene in indoor air of Polish apartments: The impact on air quality and human exposure
PublicationMonoterpenes are among most ubiquitous volatile organic compounds (VOCs) to be detected in indoor air. Since the quality of indoor air is considered important for inhabitants' well-being, the present study aimed at investigating impact of human activity on levels of selected monoterpenes applying passive sampling technique followed by thermal desorption and gas chromatography coupled mass spectrometry. One of the objectives of...
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Literature review of user needs, toward user requirements
PublicationThis report has been developed in the frame of the IEA SHC Task 61 Subtask A “User requirements”. The main objective was to rethink and reformulate user requirements to lighting (daylighting and electric lighting) in public buildings on the basis of a thorough literature study. The work is a joint effort of a number of scientists and represents collective knowledge in this topic. The concept of Lighting quality is the one, among...
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Core loss resistance impact on sensorless speed control of an induction motor using hybrid adaptive sliding mode observer
PublicationInduction motors (IMs) experience power losses when a portion of the input power is converted to heat instead of driving the load. The combined effect of copper losses, core losses, and mechanical losses results in IM power losses. Unfortunately, the core losses in the motor, which have a considerable impact on its energy efficiency, are not taken into account by the generally employed dynamic model in the majority of the studies. Due...
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Assessment of the impact of bacteria Pseudomonas denitrificans, Pseudomonas fluorescens, Bacillus subtilis and yeast Yarrowia lipolytica on commercial poly(ether urethanes)
PublicationThe assessment of the impact of the bacteria Pseudomonas denitrificans, Pseudomonas fluorescens, Bacillus subtilis and yeast Yarrowia lipolytica on commercial poly(ether urethanes) Tecoflex® and Tecothane® is presented. The polyurethane samples were incubated with pure cultures of the microorganisms at 30 °C for five months. The changes in the chemical structure of the polymers were evaluated using loss of weight and contact angle...
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Evaluati on of long-term start up costs impact on short-term price based operational optimization of a CCGT using MILP
PublicationAn increasing share of the weather-dependent RES generation in the power system leads to the growing importance of flexibility of conventional power plants. They were usually designed for base load operation and it is a challenge to determine the actual long-term cycling costs, which account for an increase in maintenance and overhaul expenditures, increased forced outage rates and shortened life expectancy of the plant and components....
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Spatial aspects of urban air quality management: Estimating the impact of micro-scale urban form on pollution dispersion
PublicationUrban planning and design solutions affect urban ventilation conditions, thus mitigating the effects of atmospheric pollution. However, these findings are not being implemented in the planning practice to a sufficient extent, partly due to the lack of specific guidelines. Moreover, many urban air quality monitoring (AQM) sites have low represnentativeness and thus do not provide comprehensive data for effective urban air pollution control...
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A simplified method to assess the impact of ship-to-ship collision on the risk of tanker ship hull girder breaking accounting for the effect of ageing
PublicationOne of the most critical structural failures is the exceedance of the ship hull girder’s ultimate strength, which may result in hull breaking, and subsequent severe consequences, including loss of life and property as well as environmental damage in case of an oil spill. A cause for such loss of structural continuity can be triggered by a collision with another vessel. In addition, the ageing mechanisms of the hull structure could...
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Study on transmission quality in cellular 4G and 5G networks between 2019–2021: Impact of the COVID-19 pandemic on the level of provided services by operating base transceiver stations
PublicationThe COVID-19 pandemic has significantly limited user mobility, not least among students. Remote learning had a particular impact on resource allocation in relation to using terrestrial cellular networks, especially 4G systems in urban agglomerations. This paper presents the results of a quality evaluation of an outdoor environment, carried out between 2019 and 2021 on the campus of a technical university. Annual studies are conducted...
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Evaluation of the Impact of Storage Conditions on the Biogenic Amines Profile in Opened Wine Bottles
PublicationA survey of biogenic amine (BA) profiles in opened wine bottles has been established to monitor the level of biogenic amines (BAs) in opened bottles against time and other conditions. Bottles of red and white wine were submitted to different temperatures, stopper type (screw cap, cork), and use of vacuum devices. A total of six wines made from a variety of grapes were obtained from vineyards from regions across Poland. Dispersive...
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The impact of gender wage gap on sectoral economic growth – cross-country approach
PublicationWe propose an empirical analysis of testing the relationship between gender wage gap and economic growth. The study takes into account 12 manufacturing sectors in 18 OECD countries for the period between 1970 and 2005.We use industrial statistics (EU KLEMS, 2008) on female and male wages that distinguish between wages paid to different groups of workers classified according to skill level: high, medium and low. We estimate augmented...
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The impact of the Polish mass breast cancer screening program on prognosis in the Pomeranian Province
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The impact of land use and season on the riverine transport of mercury into the marine coastal zone
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Impact of agricultural farms on the environment of the Puck Commune: Integrated agriculture calculator—CalcGosPuck
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European Football Championship - Euro 2012 in Poland: the Impact on the Host-Cities' Development
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Cross section calculations for electron impact ionization and elastic scattering from cisplatin
PublicationCałkowity przekrój czynny na jednokrotną jonizację cisplatyny (H6N2Cl2Pt) w zderzeniach z elektronami został obliczony przy wykorzystaniu modelu BEB (binary-encounter-Bethe) dla energii zderzenia od progu na jonizację do 5 keV. W celu uzyskania danych niezbędnych w modelu BEB, geometryczna i elektronowa struktura cisplatyny została przebadana metodami chemii kwantowej. Obliczono również przekrój czynny na sprężyste rozproszenie...
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Towards high quality ITO coatings: the impact of nitrogen admixture in HiPIMS discharges
PublicationThe paper reports controlled deposition of optically transparent and electrically conductive ITO films prepared by a combination of rf (13.56 MHz) and High Power Impulse Magnetron Sputtering (HiPIMS) systems without any post deposition thermal treatment/annealing. It is shown that (i) reactive admixture of N2 gas to the process and (ii) pressure in the deposition chamber enable to optimize optical properties of ITO films. Furthermore,...
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Impact of Shifting Time-Window Post-Processing on the Quality of Face Detection Algorithms
PublicationWe consider binary classification algorithms, which operate on single frames from video sequences. Such a class of algorithms is named OFA (One Frame Analyzed). Two such algorithms for facial detection are compared in terms of their susceptibility to the FSA (Frame Sequence Analysis) method. It introduces a shifting time-window improvement, which includes the temporal context of frames in a post-processing step that improves the...
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Impact of slow breathing on the blood pressure and subarachnoid space width oscillations in humans
PublicationThe aim of the study was to assess cardiac and respiratory blood pressure (BP) and subarachnoid space (SAS) width oscillations during the resting state for slow and fast breathing and breathing against inspiratory resistance. Experiments were performed on a group of 20 healthy volunteers (8 males and 12 females; age 25.3 ± 7.9 years; BMI = 22.1 ± 3.2 kg/m2). BP and heart rate (HR) were measured using continuous finger-pulse photoplethysmography....
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Impact of Boundary Conditions on Acoustic Excitation of EntropyPerturbations in a Bounded Volume of Newtonian Gas
PublicationExcitation of the entropy mode in the field of intense sound, that is, acoustic heating, is theoreticallyconsidered in this work. The dynamic equation for an excess density which specifies the entropy mode,has been obtained by means of the method of projections. It takes the form of the diffusion equation withan acoustic driving force which is quadratically nonlinear in the leading order. The diffusion coefficient isproportional...
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The impact of methods the stochastic analysis on swimming safety of multihull floating units (Part1)
PublicationThe presented article concerns the application of the methods of the stochastic analysis to solve differential equations for multihull catamaran-type floating unit. There was described the continuous process of Markov and the method of equations of Focker-Planck-Kolmogorov. The analysis of dynamics of the multihull unit was carried out with the assumption that the system model is the linear model with six degrees of freedom, on...
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The diagnostic ambiguity of the impact test in empirical research of circular saw blades for wood
PublicationZachowanie piły podczas pracy – zarówno w trakcie przecinania, jak i na biegu luzem – zależy w dużym stopniu od konstrukcji piły i częstotliwości własnych narzędzi, które można określać doświadczalnie za pomocą testu harmonicznego bądź impulsowego. Wyniki badań wykazały, że ten ostatni nie gwarantuje prawidłowego przypisania częstotliwości charakterystycznych widma do odpowiadających im rzeczywistych postaci drgań wynikającym z...
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Impact of Industry 4.0 Technologies for Advancement of Supply Chain Management (SCM) Sustainability
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Impact of the Spirulina maxima extract addition to semen extender on bovine sperm quality
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Multiplication Analysis of the Cause, Form and Extent of Damage to Buildings in Areas with Mining Impact
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Interdisciplinary risk analysis of construction investment and property value in the areas with mining impact
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Impact of Mining Exploitation on Properties with Engineering Structures by Local Urban Development Plans
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The impact of cytogenetic evolution and acquisition of del(17p) on the prognosis of multiple myeloma patients
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Shipowner’s Impact on Planned Maintenance System Database Quality Grades Resemblance Equalization
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Mechanism of Biofilm Formation on Installation Materials and Its Impact on the Quality of Tap Water
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Numerical Analyses of Fracture Mechanism of the Pelvic Ring during Side-Impact Load
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Conventional and Alternative Sources of Thermal Energy in the Production of Cement—An Impact on CO2 Emission
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The Impact of Innovation and Information Technology on Greenhouse Gas Emissions: A Case of the Visegrád Countries
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Examining the Impact of Squaric Acid as a Crosslinking Agent on the Properties of Chitosan-Based Films
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Impact of paint matrix composition and thickness of paint layer on the activity of photocatalytic paints
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The financial impact of urbanization costs in Poland at municipality level – the case of Wrocław city
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Post-impact moisture absorption in hybrid glass, aramid, carbon/epoxy composites
PublicationZbadano chłonność wody i własności po udarze i absorpcji wody w laminatach hybrydowych aramidowo-szklano-węglowych. Badania porównawcze dla laminatów szklano-epoksydowych wykazały 18% i 33% spadek wytrzymałości na ściskanie odpowiednio w wyniku udaru o energii 10J oraz udaru i absorpcji wody.
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Impact of sea wave stochastic characteristics on ship propulsion control system design.
PublicationWybrano do rozważań (symulacji komputerowej) 8 rejonów morskich w 4 porach roku. Określono w nich gęstość widmową amplitudy fali morskiej. Założono, upraszczająco, regulator typu PID. Dla wybranego typu statku wykonane badania symulacyjne odnoszą się do wybranych rejonów mórz i pór roku. Okazuje się, że dobierając zarówno współczynnik wzmocnienia regulatora jak i stałą całkowania, można minimalizować wartości wariancji, na przykład,...
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Attempt to modeling with FEM of the impact of initial oval shape of tube into creep process.
PublicationOpisano zasady modelowania metodą elementów skończonych zjawiska pełzania dla elementów typu rura oraz pokazano wynik próby modelowania za pomocą MES wpływu początkowej owalności rury na proces pełzania.
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A study of electron impact excitation of molecular oxygen at a scattering angle of 180 st.
PublicationZbadano wzbudzenie tlenu cząsteczkowego w zderzeniu z elektronem dla rozproszenia do tyłu, pod kątem 180 st. Do pomiarów wykorzystano nowe źródło lokalnego pola magnetycznego o geometrii stożkowej.
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On delamination threshold loads in low velocity impact on glass-carbon/epoxy composites.
PublicationZbadano możliwości zastąpienia badań udarowych o niskiej energii ze spadającą masą badaniami quasi-statycznymi przy analogicznym obciążeniu próbki dla laminatów epoksydowych wzmocnionych włóknami węglowymi i szklanymi oraz węglowymi. Uzyskano dobrą zgodność wyników obu typów badań , co znajduje potwierdzenie w wynikach innych badaczy.
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Assessment of the impact of a phosphatic fertilizer plant on the adjecent environment using fuzzy logic
PublicationZbadano wpływ zakładów nawozów fosforowych na otaczające środowisko. W próbkach trawy i gleby oraz produktów i produktu ubocznego oznaczono wybrane pierwiastki ziem rzadkich, metale ciężkie i metaloidy. Zbadano rozkład stężeń pierwiastków oznaczonych w próbkach gleby i trawy wzdłuż południowego i wschodniego kierunku, porównując ją ze stężeniami oznaczonymi w glebie i trawie z terenu zakładów oraz w substratach i produktach. Wyniki...
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Ovarian function and obesity—Interrelationship, impact on women's reproductive lifespan and treatment options
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Impact of Plasma Pre-Treatment on the Tribological Properties of DLC Coatings on PDMS Substrates
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Impact of donor health on corneal biochemistry – an unexpected caveat from a pilot study
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Impact of Ischemic Intra-Conditioning on Power Output and Bar Velocity of the Upper Limbs
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Enhanced European Coordination of Accelerator Research and Development – EuCARD2 – Global and Local Impact
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DYNAMIC ANALYSIS OF THE IMPACT OF VIBRATION ON HISTORICAL BUILDINGS - AN OWN PROJECT OF EXTERNAL STAIRCASE
PublicationThis article presents numerical simulations that concern modeling of interaction of the external staircase’s construction with the observation deck on historic water tower located at Gdansk University of Technology. The interaction occurring according to various methods of the staircase's construction support on the wall of the historic tower was compared. The external staircase that allows for entering onto the monument was subjected...
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Impact of enhanced pretreatment on biological nutrient removal in municipal wastewater treatment plants
PublicationThe aim of this study was to determine the effect of enhanced primary treatment on: increasing primary sludge production for increased biogas production; reducing the organic load on downstream biological treatment processes and thereby reducing energy consumption for aeration; denitrification and enhanced biological phosphorus removal (EBPR) rates in the activated sludge system. For this purpose, three commercial organic polymers...
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Programmes to Combat the Economic Impact of the COVID-19 Pandemic in Kazakhstan and Ukraine and Unemployment
PublicationThe following article presents economic programmes to combat the negative effects of the COVID-19 pandemic. The analysed programmes were undertaken by the governments of Ukraine and Kazakhstan. They contributed to reducing unemployment in both countries. The findings of Ukrainian researchers focused mainly on estimating losses in the SME sector, especially in the hotel, tourism and transport sectors. Scientific literature in Kazakhstan...