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Red Algae – An Alternative Source of Carbon Material for Energy Storage Application
PublikacjaNew electrode material obtained by pyrolysis of aquatic biomass macro (red algae) soaked with glucose solution has been characterized by SEM, EDX and Raman spectroscopy. Graphitized carbon was identified by Raman spectroscopy. Galvanostatic cyclic polarization of the materials in contact with 1M LiPF6 electrolyte in EC:DMC (1:1 v/v) and Li as a counter electrode was performed. Specific capacity of the novel material was enhanced...
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Problemy przygotowania inwestycji komunalnej na przykładzie sieci wod. – kan
PublikacjaInwestycje sieciowe na przykładzie wodociągów i kanalizacji. Charakterystyczne błędy poszczególnych etapów procesu inwestycyjnego. Konsekwencje nadmiernych uproszczeń i trywializacji zapisów ustawy "Prawo zamówień publicznych". Przykład niefachowego podejścia do rozwiązania nietypowej i ważnej inwestycji. Konsekwencje lekceważenia zagrożeń.
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Badania warunków spawania pod wodą metodą lokalnej komory suchej
PublikacjaZastosowanie do spawania pod wodą metody lokalnej komory suchej stanowi alternatywę dla mających znacznie większe znaczenie praktyczne metod spawania w warunkach mokrych. Zwiększenie zakresu stosowania procesów spawalniczych przy miejscowym odizolowaniu obszaru spawania od wody uwarunkowane jest opracowywaniem nowych rozwiązań konstrukcyjnych, ale także poszerzaniem stanu wiedzy o przebiegu procesu m.in. poznaniem warunków panujących...
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Risks related to car fire on innovative Poroelastic Road Surfaces-PERS
PublikacjaTo reduce tyre/road noise, the concept of poroelastic road surfaces (PERS) was invented. PERS is a road surface material that is porous, and at the same time, it is flexible because of the substantial amount of rubber granulate content (from 20% to 85%). The rubber and stone particles are bound by polyurethane resin instead of bitumen. It was feared that in case of fire, because of the high content of rubber and polyurethane, there...
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Foreign visitors from Visegrad countries with regard to road safety in Poland
PublikacjaIn the paper the authors present road safety situation in the Polish regions mostly visited by Czech, Slovakian and Hungarian tourists. These regions include Mazowieckie, Dolnoslaskie, Slaskie and Malopolskie voivodeships. After description of the regions and main touristic destinations for foreigners from Visegrad countries, a detailed road safety analysis performed for the period 2007-2012 is given. The paper ends with conclusions in...
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Road Safety Observatories within the Structure of Integrated Transport Safety Systems
PublikacjaAccurate knowledge about the causes, circumstances and place of transport accidents is the prerequisite to take the correct action to improve transport safety. Developing appropriate organizational structures, forms and methods of management and implementation of safety measures in the sectoral approach condition the success. Therefore the Safety Information System is one of the integral areas of the Integrated Transport Safety...
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Times Series Analysis Of Road Safety Trends At The Regional Level In Poland
PublikacjaThe paper presents possibility of applying a structural times series modeling with explanatory and intervention variables as a tool capable for explaining the changes in the monthly number of fatalities and seriously injured in traffic accidents. The analysis covers regional level and takes into consideration traffic accidents data of two regions: Pomorskie and Warmia-Mazury. In addition short-term forecasts for the two regions...
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Rolling resistance and tyre/road noise on rubberised asphalt pavement in Poland
PublikacjaThe paper presents results of tyre/road noise and rolling resistance measurements performed on stone mastics asphalt (SMA) that contains rubberised asphalt, developed and produced by a refinery in Poland. Bituminous binder was modified with polymer and addition of crumb rubber. The first observations of asphalt mixture with the new kind of modified bitumen used on the field section are presented. Rolling resistance of passenger...
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From hobbies, straightforward analysis to serious research – the road to phd degree
PublikacjaThe illustration of the main articles goal is an example of author's academic career course, the aim of which is to obtain a doctoral degree in the field of geodesy and cartography. Today, the most important thing for the young scientist is the devotion to research in certain field of science, which is interested for the large community of scientists. From a psychological point of view, a unity of interest and experiments must...
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Analysis of soundscape recordings in close proximity to the road in changeable wather conditions
PublikacjaThe acoustic vehicle sensing is the least invasive type of traffic detection. Also, acoustic-based vehicle detection technology is insensitive to precipitation and can operate in low light level. Therefore, this kind of method may be used for automatic detection of the vehicle passage events. It can also be employed for measurements of a vehicle speed and the vehicle assignment to the particular category. In this paper the results...
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INFLUENCE OF TEST CONDITIONS ON TYRE/ROAD NOISE MEASURED BY THE DRUM METHOD
PublikacjaTyre/road noise is one of the most important environmental problems related to road traffic. Nowadays a few standard procedures of tyre/road noise measurements are in use. Unfortunately, measurement conditions specified within relevant standards are very different. For example, procedure described in ISO 11819-2 used for pavement investigations requires tyre load of 3200 N and capped inflation pressure of 200 kPa. At the same time...
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Molecular and structural characteristics of cod gelatin films modifiedwith EDC and TGase
PublikacjaCod gelatin films before and after cross-linking of gelatin with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) or transglutaminase (TGase) have been characterized by FT-IR spectroscopy and DSC analysis. For comparison, a film prepared from unmodified pig gelatin has been also analysed. The difference spectra showed that cod gelatin during the film formation involved first of all water-to-amide hydrogen bonds, and the film...
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Low-Temperature Requirements for Bitumen in Central East European Road Construction
PublikacjaThe paper presents the proposition of special assessment of lowtemperature requirements for bitumens in the region of Central and Eastern Europe where there is a moderate transitional area from sea to the continental type of climate. The results of the research program conducted on the road neat bitumens, Styrene-Butadiene-Styrene polymer and polymer-rubber modified bitumen, and multigrade bitumen types were presented and discussed....
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The effects of selected factors on regional road fatalities – analysis of the Łódź region
PublikacjaAnalysis of regional accident records shows that a country’s national road safety programme does not have the same effect in each of its regions. What may be a serious problem in one region may be of marginal significance in another. Polish and international experience shows that main risk groups and types of accidents related to the level of development and quality of the road network differ from region to region. The conclusion...
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Prediction of manoeuvring abilities of 10000 DWT pod-driven coastal tanker
PublikacjaThis paper aims to present a new approach in the prediction of manoeuvring abilities of pod-driven ships. A new mathematical model of motions based on MMG methodology was developed and a new type of description of forces acting on azimuth drives is presented. Captive model tests of medium-size coastal tanker and pod open water tests were carried out in CTO S.A. (Ship Design and Research Centre S.A.) to obtain hull hydrodynamic derivatives...
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Comparative study on the effectiveness of various types of road traffic intensity detectors
PublikacjaVehicle detection and speed measurements are crucial tasks in traffic monitoring systems. In this work, we focus on several types of electronic sensors, operating on different physical principles in order to compare their effectiveness in real traffic conditions. Commercial solutions are based on road tubes, microwave sensors, LiDARs, and video cameras. Distributed traffic monitoring systems require a high number of monitoring...
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Development of Intelligent Road Signs with V2X Interface for Adaptive Traffic Controlling
PublikacjaThe objective of this paper is to present a practical project of intelligent road signs, under which a series of new products for the regulation of traffic is being created. The engineering part of the project, described in this paper, was preceded by a series of experimental studies, the results of which were described in another paper accepted for publication at the MTS-ITS conference 2019, entitled "Comparative study on the effectiveness...
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Transformatory z regulacją przekładni pod obciążeniem w systemie elektroenergetycznym
PublikacjaZmiany zachodzące w systemie elektroenergetycznym, związane między innymi ze stałym wzrostem zapotrzebowania na moc, przyłączaniem źródeł odnawialnych czy rozwojem elektromobilności, przy jednoczesnym wzroście wymagań dotyczących jakości energii elektrycznej, zmuszają operatorów sieci elektroenergetycznych do podejmowania działań zmierzających do sprostania nowym wymaganiom. Jednym z kierunków tych działań jest wykorzystanie w...
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Novel proposal for V2X systems and WBAN cooperation to improve road safety
PublikacjaIn this paper, a novel proposal of the automotive Vehicle-to-Everything system solution is presented. In this proposal, there are included the Machine to Machine type communication system and the sensor system based on a short-range the Wireless Body Area Network communication. The aim of this paper is the analysis of the model for communication, especially its architecture and signals structure for the proposed solution. The use...
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Reduction of road traffic noise by source measures — present and future strategies
PublikacjaThe current trend worldwide is less focused on reducing road traffic noise. This is in strong contrast to the severe impact of traffic noise to the general health and quality of life. A more holistic and combined strategy is needed. Current international rules and regulations regarding vehicles and tyres are not sufficient to reduce traffic noise levels in an effective way. Calculations show that these regulations will only yield...
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Development of tools for road infrastructure safety management for the provinces (voivodeships) in Poland
PublikacjaThe development of modern tools for road infrastructure safety management will help to reduce the number of fatalities and serious injuries as one of the main objectives adopted in 2013 in the National Road Safety Programme 2014-2020 and the new Road Safety Programme 2011-2020 in the EU. Risk Management in Highway Engineering can be applied in developing tools essential in the process of safety management. Risk Management in Highway...
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Pedestrian and bicycle bridges as examples of safe collision-free road crossings
PublikacjaPedestrians 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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Pylon foundation of a cable stayed bridge at the motorway ring road of Wrocław
PublikacjaThe largest bridge of the motorway ring road of Wroclaw is a cable stayed bridge over the Odra river near Rędzin. Due to hydrogeological conditions of the ground it was not convenient to use standard bored piles of high length. Instead shorter piles were applied with additional improvement by cement injections at the pile toes. This decision was possible by extending ground investigation program and application of numerical modeling...
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Road surface roughness estimation employing integrated position and acceleration sensor
PublikacjaAssessment of a surface quality being an essential task for the authorities supervising the roads provides the subject of the paper. Information about riding quality of a pavement, important for drivers, both in terms of their comfort and safety is collected during experiments employing mobile sensors. The paper describes the use of a miniature position and acceleration sensor for evaluation of the roughness of the road surface....
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The impact of road network structure and mobility on the national traffic fatality rate
PublikacjaW pracy określono wpływ wybranych miar struktury sieci drogowej i mobilności mieszkańców na wskaźnik śmiertelności w wypadkach drogowych na bazie dostępnych danych z wielu krajów świata. Opracowano wieloczynnikowe modele nieliniowe pozwalające na określenie wpływu wielu istotnych czynników: ekonomicznych, systemowych, motoryzacyjnych i infrastrukturalnych na bezpieczeństwo ruchu drogowego mierzonego wskaźnikiem śmiertelności RFR.
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Organic matter removal efficiency in treatment wetlands simulation by COD fractions
PublikacjaThe objective of this paper was to investigate the organic fraction (colloidal, particulate, and dissolved) in sewage treatment in treatment wetland. Performance of TWs was simulated well with a simple first order model k – C* based on monitoring data. In this investigation background or residual concentration (C*) was assumed to be equal concentration of input influent organic matter in particulate (CODp). Calculated reaction...
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Trendy w kreowaniu przestrzeni publicznych znajdujących się pod ziemią
PublikacjaDynamiczny rozwój miast rzadko, kiedy pozostaje w zgodzie z zasadami zrównoważonego rozwoju. Korki uliczne, zanieczyszczenie powietrza, brak przestrzeni zielonych sprawiają, iż po upływie kilku stuleci, ponownie zwracamy się w stronę ziemi, która może zapewnić nam nową przestrzeń dla rozwoju miasta. Istniejące historyczne przestrzenie podziemne: jaskinie, kopalni, obiekty militarne zaadaptowane na konkretne potrzeby, dają możliwość...
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The Impact of Road Network Structure and Mobility on the National Traffic Fatality Rate
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Introduction to smart solutions for wastewater: Road-mapping the transition to circular economy
PublikacjaToday there is an urgent need to move from a linear to a circular economy approach with special focus to water and environment. Despite the paramount importance, this transition is hampered by barriers which concern not only technological but embrace also organizational, regulatory, social, and economic aspects. In order to overcome such barriers, innovative water-smart solutions are needed and a robust roadmap for the transition...
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Probabilistic analysis of settlements under a pile foundation of a road bridge pylon
PublikacjaThe paper addresses the reliability change of a road bridge pile foundation due to the unpredictable increase of settlements in time. The analysis is based on the Rędziński Bridge in Wrocław, Poland, its design assumptions, and monitoring results. The bridge foundation rests on a multi-layered subsoil assumed random. The Finite Element model of the subgrade is generated in ZSoil® software. To simplify the probabilistic approach,...
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Low noise poroelastic road pavements based on modified asphalt binder
PublikacjaTire/road noise is one of the most important environmental problems related to road traffic. As the most effective way to fight noise is reduction of sound emission from the source, a lot of work is being done to improve tire and road surfaces construction. This paper describes the first “road” results obtained within the SEPOR project, which is focused on developing a low noise poroelastic road surface based on bituminous binder....
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Spatial differentiation of road safety in Europe based on NUTS-2 regions
PublikacjaRoad safety varies significantly across the regions in Europe. To understand the factors behind this differentiation and the effects they have, data covering 263 NUTS-2 (Nomenclature of Territorial Units for Statistics) regions across Europe (European Union and Norway) have been analysed. The assessment was made using Geographically Weighted Regression (GWR). As a dependent variable the Road Fatality Rate (RFR – number of fatalities...
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Two-Row ESPAR Antenna with Simple Elevation and Azimuth Beam Switching
PublikacjaIn this letter, we propose a two-row electronically steerable parasitic array radiator (ESPAR) antenna designed for direction of arrival (DoA) estimation in Internet of Things (IoT) applications relying on simple microcontrollers. The antenna is capable of elevation and azimuth beam switching using a simple microcontroller-oriented steering circuit and provides 18 directional radiation patterns, which can be grouped in 3 distinctive...
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Charakterystyka i właściwości kerogenu w kontekście wzbogacania rud miedzi
PublikacjaScharakteryzowano materię organiczną formacji łupkowych w odniesieniu do jej związku z minerałami metalonośnymi. W szczególności analizowano kerogen, ze względu na właściwości, stan skupienia i związanie z materią mineralną. Zestawiono najbardziej efektywne metody pozwalające na skuteczny rozdział materii organicznej i minerałów metalonośnych ze skał łupkowych, celem uzyskania koncentratu o najwyższej jakości. Omówiono flotację...
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Stability analysis of a road scarp in the Carpathian Mountains and methods of its protection
PublikacjaThe purpose of the study was to analyse the stability of a road scarp endangered by a landslide and to consider some measures for its stabilization. The potential landslide could unfavourably alter the shape of the slope, thus a religious sanctuary situated above the slope. The present research has resulted in suggestions of possible protection methods, namely, drainage, soil nailing, installation of piles, supporting the scarp...
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ROSANNE Project: New Procedure for Noise Characterisation of Road Surfaces in Europe
PublikacjaROSANNE is a collaborative project in the 7th EU Framework Programme which aims at harmonising measurement methods for skid resistance, noise emission and rolling resistance of road pavements as a preparation for standardization. The project started in November 2013 and is developing and improving standards in the field of working group CEN/TC 227/WG 5. Regarding the influence of the pavement on the road traffic noise emission,...
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The Influence of Stretch Rod Speed on the Relationship between Preblown Bottle Aesthetic Quality and Final Blown Bottle Thickness Profile in Stretch Blow Molding from Preform Process
PublikacjaFrom a mechanical point of view, the aesthetic quality of preblown PET bottles and thickness profile of final blown PET bottles manufactured in ISBM process are determined by mechanical and thermal response of blown preforms. From the microscopic point of view the biggest influence on the mechanical and thermal properties of PET bottles have orientation and crystallization processes. From a technological point of view, the aesthetic...
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Współdziałanie płyty fundamentowej na palach z podłożem gruntowym.**2003,157 s. 121 rys. 22 tab. bibliogr. 83 poz. Rozprawa doktorska /2003.11.14./ PG, Wydz. Bud. Wod. Inż. Środ. Promotor: prof. zw. dr hab. inż. A. Tejchman
PublikacjaPrzedmiotem pracy jest analiza współdziałania płyty fundamentowej na palachz podłożem gruntowym w tym określenie udziału płyty i pali w przekazywaniuobciążeń zewnętrznych na podłoże gruntowe oraz przedstawienie efektów wzaje-mnego oddziaływania płyty, pali i gruntu. Ponadto zaproponowano procedurę obliczeń fundamentów płytowo - palowych pozwalającą ekonomicznie i bezpie-cznie projektować posadowienie tego rodzaju fundamentów.
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Analiza pracy podłoża uwarstwionego z warstwami słabonośnymi.**2003, 202 s. 157 rys. 36 tab. bibliogr. 30 poz. Rozprawa doktorska /2003.12.19./ PG, Wydz. Bud. Wod. Inż. Środ. Promotor: prof. dr hab. inż. W. Odrobiński
Publikacja...
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Dynamic mechanical properties and flexing fatigue resistance of tire sidewall rubber as function of waste tire rubber reclaiming degree
PublikacjaA stepwise downsizing method of gel particles in reclaimed rubber to a micro-nano scale and its excellent dynamic performance in tire sidewall were introduced by this work. The results showed that the size of gel particles decreased from several micrometers to micro-nanometers with the increase of reclaiming degree, accompanied by reduced molecular weight and widened molecular weight distribution of sol fraction. The addition of...
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Case study 1.2C: Road infrastructure cost in Poland, Annex to Deliverable D3, Marginal cost case studies for road and rail transport. GRACE. Funded by Sixth Framework Programme.
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Drugs and driving
PublikacjaW referacie przedstawiono we wprowadzeniu pojawienie się nowego zagrożenia, jakim jest kierowanie pojazdów przez osoby będące pod wpływek narkotyków. W drugiej części przedstawiono obecnie obowiązujące sankcje, jakie mogą spotkać kierującego oraz definicję środków odurzających, po zażyciu których nie można prowadzić samochodu. W trzeciej części przedstawiono badania naukowe przeprowadzone w Polsce i Niemczech, które pokazują jak...
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Joint time–frequency analysis of electrochemical noise
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The time dependence of pit creation impedance spectra
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Time reconstruction and performance of the CMS electromagnetic calorimeter
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Digital Innovations for Sustainable Development in the Time of Crisis
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Short-Period Information in GPS Time Series
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Digital hearing aid with time and spectral transposition.
PublikacjaNastępstwem uruchomienia w Polsce, prowadzonych na szeroką skalę, badań przesiewowych słuchu jest konieczność zaoferowania pomocy osobom cierpiącym na niedosłuch poprzez leczenie i protetykę słuchu. Tymczasem, aktualnie oferowane rozwiązania aparatów słuchowych nie są w stanie sprostać niektórym specjalistycznym potrzebom aparatowania, m. in.: najmłodszych dzieci, osób pracujących w hałasie, pilotów wojskowych oraz osób korzystających...
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Ikona-jak to sie robi w chicago?
PublikacjaOpis niezrealizowanego projektu Santiago Calatravy 610 metrowego wysokościowca Chicago Spire.
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Real-time speech-rate modification experiments
PublikacjaAn algorithm designed for real-time speech time scale modification (stretching) is proposed, providing a combination of typical synchronous overlap and add based time scale modification algorithm and signal redundancy detection algorithms that allow to remove parts of the speech signal and replace them with the stretched speech signal fragments. Effectiveness of signal processing algorithms are examined experimentally together...