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Estimating the uncertainty of the liquid mass flow using the orifice plate
PublicationThe article presents estimation of measurement uncertainty of a liquid mass flow using the orifice plate. This subject is essential because of the widespread use of this type of flow meters, which renders not only the quantitative estimation but also qualitative results of this type so those measurements are important. To achieve this goal, the authors of the paper propose to use the theory of uncertainty. The article shows the...
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Improvement of radiotracers experiments in mass transfer processes
PublicationThe greatest part of industrial mass transfer is based on continuous transportation of different substances throughout especially constructed installations. In that kind of practice, a flow of such mass in each part determines the process unit and can be described by the residence time distribution (RTD) of the substance inside this unit. This parameter may be evaluated by the properly arranged tracer experiment. It is worthwhile...
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Graphene field-effect transistor application for flow sensing
PublicationMicroflow sensors offer great potential for applications in microfluidics and lab-on-a-chip systems. However, thermal-based sensors, which are commonly used in modern flow sensing technology, are mainly made of materials with positive temperature coefficients (PTC) and suffer from a self-heating effect and slow response time. Therefore, the design of novel devices and careful selection of materials are required to improve the overall...
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Methods of measurement signal acquisition from the rotational flow meter for frequency analysis
PublicationOne of the simplest and commonly used instruments for measuring the flow of homogeneous substances is the rotational flow meter. The main part of such a device is a rotor (vane or screw) rotating at a speed which is the function of the fluid or gas flow rate. A pulse signal with a frequency proportional to the speed of the rotor is obtained at the sensor output. For measurements in dynamic conditions, a variable interval between...
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Growing role of walking and cycling and the associated risks
PublicationIncreasing the role of active mobility, including walking and cycling, is one of the tools for developing sustainable urban transport systems as recommended by the EU. The article describes the trends in pedestrian and bicycle traffic in Poland and its share in urban modal split. It identifies and describes the main sources of risks to pedestrian and cycle safety. Recommendations are...
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Pedestrian and bicycle bridges as examples of safe collision-free road crossings
PublicationPedestrians are most at risk when they are crossing the road. This represents a significant proportion of all fatalities among pedestrians, amounting respectively to 50% in non-built-up areas and 75% in built-up areas. The most frequent reason for this accident is failure to give way. What is most terrible is that 30% of pedestrian accidents occurred at marked pedestrian crossings. Therefore, an important part of pedestrian safety...
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Tools for road infrastructure safety management in poland
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Selected thermal and flow issues in a reversed thermosiphon with a steam liquid lifter
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Mercury concentration in the sediments as a function of changing climate in coastal zone of Southern Baltic Sea – preliminary results
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Agricultural utilisation of municipal sludge in willow plantation
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Analysis of energy consumption at the Rzeszów Wastewater Treatment Plant
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Analysis of temporal leachibility of trace elements to the environment of opoka-rocks used in historical building
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Effect of diet on the capacity to remove mercury from the body of a penguin (Spheniscus demersus) living in the ZOO
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Assessment of the effect of vegetation on the transition of the flood wave using hydraulic 2D models
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Evaluation of suitability for 3D printing of high performance concretes
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Temporal and spatial complementarity of wind and solar resources in Lower Silesia (Poland)
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Analysis of moisture conditions in the lowland areas using high resolution spectral data from the Sentinel-2 satellite and the GIS tools
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Variation de l’épaisseur du placage de déroulage des bois et son influence sur les caractéristiques mécaniques des panneaux LVL
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Evaluation of water soil erosion processes in forest areas in the Western Sudetes using terrestrial laser scanning and GIS tools
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GIS estimated potential of rooftop PVs in urban areas - case study Wrocław (Poland)
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Probabilistic approach of the Upper and Middle Odra basin daily rainfall modeling
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Feasibility study of a novel hot stamping process for Ti6Al4V alloy
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Simulation Method for Scheduling Linear Construction Projects Using the Learning– Forgetting Effect
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Removal of organic compounds from natural underground water in sorption and sono-sorption processes on selected activated carbons
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Substance flow analysis for mercury emission in Poland
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The effectiveness of organic matter removal in unit processes of the technological groundwater treatment system
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The anthropogenic pollutants in urban ponds based on the example of Słupsk
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Disinfection of rainwater as a way to their microbiological stability and safe use
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Cost minimization of locating construction machinery park with the use of simulation and optimization algorithms
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The method of strengthening the church building in terms of the planned mining exploitation
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The collusion detection in public procurements – selected methods applied for the road construction industry in Poland
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The profit as in-company evaluation of the construction site effectiveness
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Numerical analysis of settlement of a high-rise building using two constitutive soil models
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Cracking of the Vault in a Church Building and Activities Undertaken in the View of the Further Mining Exploitation
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The methodology of technical due diligence report preparation for an office, residential and industrial buildings
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Cost approach to the flow-shop construction scheduling
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The Conjugated Triangle Method CTM of the detection of inconsistent bids in the construction industry
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Municipality’s financial potencial and policy of flood risk management in Poland
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Preliminary research on adaptability of municipalities in the sub-basin of Nysa Kłodzka using multidimensional comparative analysis
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Evaluation of trophic parameters in newly built reservoir using canonical variates analysis
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Experimental evidence about misconception of Terzaghi's 1-D consolidation theory in terms of degree of consolidation
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Large-scale Rowe cell experimental study on coefficient of consolidation of coal mine tailings
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The prototype of a wireless measurement card
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The problem of “spectrum leakage” in the measurement of harmonics
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Searching for new development in areas of the city
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Deep submarine groundwater discharge indicated by pore water chloride anomalies in the Gulf of Gdańsk, southern Baltic Sea
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Green energy in municipal planning documents
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Modelling changes in the energy efficiency of buildings using neural networks on the example of Zielona Góra
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Assessing the damage importance rank in acoustic diagnostics of technical conditions of the internal combustion engine with multi-valued logical decision trees
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Analysis of fracture roughness parameters of S355J2 steel and EN AW-2017A-T4 aluminium alloy
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