Wyniki wyszukiwania dla: DUAL-MEDIA FILTRATION - MOST Wiedzy

Wyszukiwarka

Wyniki wyszukiwania dla: DUAL-MEDIA FILTRATION

Wyniki wyszukiwania dla: DUAL-MEDIA FILTRATION

  • COMPARISON OF THE CONVENTIONAL AND ALTERNATIVE GRANULAR MATERIALS FOR DUAL-MEDIA FILTRATION OF GROUNDWATER: PILOT PLANT TESTING

    Publikacja

    - Rok 2014

    Nowadays, occurrence of abnormal mineral or organic natural (geogenic) compounds concentrations, in ground and infiltration water, but also quite often in surface waters, is now a common problem encountered in Poland, Europe and many other countries throughout the world. The most concern is usually paid on the removal of iron (Fe) and manganese (Mn) as well as anthropogenic compounds (in particular referring to the organic compounds...

  • Application of the expanded clay aggregate in form of granular materials for water treatment

    Publikacja

    - Rok 2017

    The paper aimed to evaluate the efficiency of Filtralite MonoMulti compared to the conventional dual-media filter beds comprising silica sand layer covered with anthracite coal. Filtralite media are composed of processed (expanded), highly porous clay products characterized by relatively rough grain surfaces. In order to compare these different media filters in a reliable way, the pilot filter columns operated in parallel, under...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Extracellular proteolytic activity of Deinococcus geothermalis

    Production of extracellular protease by extremophilic bacteria Deinococcus geothermalis cultivated in liquid media containing 0.1% (w/v) of peptone K, 0.1% yeast extract and 0.2% marine salt reached a maximum in 14 h of the cell growth at 45°C and pH 8.0. The enzyme was purified by a two-step procedure using fractionation by a graded ammonium sulphate precipitation technique and gel filtration on Sephadex G-100 column. Protease...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Applications of Tensor Analysis in Continuum Mechanics

    Publikacja

    - Rok 2018

    A tensor field is a tensor-valued function of position in space. The use of tensor fields allows us to present physical laws in a clear, compact form. A byproduct is a set of simple and clear rules for the representation of vector differential operators such as gradient, divergence, and Laplacian in curvilinear coordinate systems. The tensorial nature of a quantity permits us to formulate transformation rules for its components...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Media społecznościowe a wizerunek marki

    Publikacja

    Jeszcze do niedawna wydawało się, że social media, podobnie jak komunikatory internetowe, będą stanowiły kolejne narzędzie wykorzystywane w komunikacji ze znajomymi, a ich tematyka będzie związana głównie z rozrywką i chęcią podtrzymania więzi społecznych. Jednak, z obserwacji wielu autorów wynika, iż obecnie można już mówić o trendzie social media lub też Web 2.0, a z roku na rok internetowe witryny o charakterze społecznościowym,...

  • FILTRATION & SEPARATION

    Czasopisma

    ISSN: 0015-1882 , eISSN: 1873-7218

  • Uniqueness or uniformity - studies of media architecture

    A development of media architecture is presented in light of to such phenomena as aesthetization, consumerism and digitization. This article deals with media architecture in commercial spaces. Media solutions impact on the architectural skin, making it into visible and dynamic points of the image of a post-modern city. This article presents the specificity of media solutions, depending on the function of commercial activity buildings...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Integrated Three-Level Dual-Phase Inverter

    Publikacja

    - ENERGIES - Rok 2022

    In view of reducing the number of inverter legs that provide dual-phase, three-level output voltages (as may be needed in an uninterruptible power supply), and that also provide a wide range of output frequencies (as needed in an advanced motor drive system with wide speed ranges), a three-level, dual-phase inverter topology is presented in this paper. Its three-level attribute was based on the F-type inverter topological concept,...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Design and Implementation of a Dual-band Filtering Wil-kinson Power Divider Using Coupled T-shaped Dual-band Resonators

    Publikacja

    - ENERGIES - Rok 2022

    The paper introduces a novel structure of a dual-band filtering Wilkinson power divider (WPD). Its essential component is a dual-band bandpass filter (BPF), implemented using coupling lines and two T-shaped resonators. The BPF is incorporated into the divider structure to suppress the unwanted harmonics within the circuit. The latter is achieved owing to a wide stopband of the filter. The deigned dual-band WPD can suppress third...

    Pełny tekst do pobrania w portalu

  • Agile Media Management Approach – an analysis

    Publikacja

    This article studies media management and demonstrates a fresh perspective on the new approach based on agile methodologies of project management. The analysis sequentially presents a literature overview of media and its management, the characteristics of media projects, agile project management, an analysis of agile approaches and media management along with the proposal of a...

  • Enhanced voice user interface employing spatial filtration of signals from acoustic vector sensor

    Spatial filtration of sound is introduced to enhance speech recognition accuracy in noisy conditions. An acoustic vector sensor (AVS) is employed. The signals from the AVS probe are processed in order to attenuate the surrounding noise. As a result the signal to noise ratio is increased. An experiment is featured in which speech signals are disturbed by babble noise. The signals before and after spatial filtration are processed...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • New Materiality-towards ‘Media Environments

    Article presents media solutions providing new materiality of architectural spaces. Media solutions in architecture evolve in new forms. Articlepresentsboth the developmentof new technological solutionsas well as new ways of application of media solutions in relation toarchitectural form. The aim of the article is to show technical aspects of new materiality - intelligent materials, allowing transmission of changeable visual content...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Optimization algorithm and filtration using the adaptive TIN model at the stage of initial processing of the ALS point cloud

    Publikacja

    - CANADIAN JOURNAL OF REMOTE SENSING - Rok 2011

    Airborne laser scanning (ALS) provides survey results in the form of a point cloud. The ALS point cloud is a source of data used primarily for constructing a digital terrain model (DTM). To generate a DTM, the set of ALS observations must be first subjected to the point cloud processing methodology. A standard methodology is composed of the following stages: acquisition of the ALS data, initial processing (including filtration),...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Using Alpha-beta filtration for robustness improvement of a quadrocopter positioning system

    Quadrocopter is an unmanned aerial vehicle (UAV) platform. The position of the robot is determined based on readings from an accelerometer and a gyroscope, but the measurement signals contain broadband noise. This article describes a solution for filtering out the noise based on an Alpha – beta filter. It also presents the methodology of designing and implementing such a filter for noise cancellation in measurement signals from...

  • Treatment of high-quality groundwater by means of one-stage filtration on active filtration beds

    Publikacja

    Przeprowadzone badania pilotowe uzdatniania wody podziemnej wysokiej jakości, wykazały, że wody o niewielkich stężeniach żelaza (< 0,6 mgl) i manganu (<0,1 mg/l) można uzdatniać stosując napowietrznie i jednostopniową filtrację, w układzie zamkniętym, przez aktywne złoża filtracyjne. Wszystkie przebadane złoża (jednowarstwowe z piasku kwarcowego; dwuwarstwowe z piasku kwarcowego i piroluzytu oraz trzywarstwowe z antracytu, piasku...

  • Media architecture: participation through the senses

    Publikacja

    - Rok 2012

    Pervasive media and interactive technologies have become inseparable not only from our everyday life but also from architecture and city spaces. However, the generic use of new technologies in the design process and material production that affects contemporary architecture, results in buildings that become mere visual objects losing their hapticity and non-visual qualities. Despite the substantial advancement in the research studies...

    Pełny tekst do pobrania w portalu

  • Silent Sonar with matched filtration

    Radars with continuous wave frequency (CW FM sonars) are used in radiolocation as 'silent sonars'. They determine the distance to target by measuring the difference between the frequency of the sounding signal and echo signal. The article presents the principle of operation and parameters of silent CW FM sonars. Target distance determined by these sonars is based on the signal at the output of the matched filter. The Doppler effect...

    Pełny tekst do pobrania w portalu

  • Advances in Dual Diagnosis

    Czasopisma

    ISSN: 1757-0972 , eISSN: 2042-8324

  • Journal of Dual Diagnosis

    Czasopisma

    ISSN: 1550-4263 , eISSN: 1550-4271

  • Method of sacrificial anode dual transistor-driving in stray current field

    In order to control a magnesium anode in a stray current interference field, a dual transistor driving system has been proposed. It consisted of a combination of PNP and NPN transistors. Dual transistor driven system and direct anode to cathode connection were electrochemically tested in 3% NaCl solution. The dual transistor driven system increased the anode efficiency and reduced hydrogen evolution and the risk of embrittlement....

    Pełny tekst do pobrania w portalu

  • Exploring the Role of Social Media Use Motives, Psychological Well-Being, Self-Esteem, and Affect in Problematic Social Media Use

    Publikacja

    - Frontiers in Psychology - Rok 2020

    Given recent advances in technology, connectivity, and the popularity of social media platforms, recent literature has devoted great attention to problematic Facebook use. However, exploring the potential predictors of problematic social media use beyond Facebook use has become paramount given the increasing popularity of multiple alternative platforms. In this study, a sample of 584 social media users (Mage = 32.28 years; 67.81%...

    Pełny tekst do pobrania w portalu

  • Proximal primal–dual best approximation algorithm with memory

    Publikacja

    - COMPUTATIONAL OPTIMIZATION AND APPLICATIONS - Rok 2018

    We propose a new modified primal–dual proximal best approximation method for solving convex not necessarily differentiable optimization problems. The novelty of the method relies on introducing memory by taking into account iterates computed in previous steps in the formulas defining current iterate. To this end we consider projections onto intersections of halfspaces generated on the basis of the current as well as the previous...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • The Crisis of Marketing Communication in the Era of Social Media

    The articles examines the widely discussed in literature the problem of marketing communication crisis resulting from the changes of the environment. These changes generate both new problems and also new solutions, e.g. social media. The practicioners are pursuing both effective and efficient solutions, in relation to the difficulties encountered while achieving market objectives via traditional methods and channels. In accordance...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Analysing and processing of geotagged social media

    The use of location based data analysing tools is an important part of geomarketing strategies among entrepreneurs. One of the key elements of interest is social media data shared by the users. This data is analysed both for its content and its location information, the results help to identify trends represented in the researched regions. In order to verify the possibilities of analysing and processing of geotagged social media...

  • Miniaturized dual‐band branch‐line coupler with enhanced bandwidth

    In this letter, a miniaturized hybrid dual-band branch-line coupler (BLC) with enhanced fractional bandwidths is proposed. Compact size and bandwidth enhancement are obtained using meandered transmission line sections with broken symmetry between cross-coupling branches. The circuit is designed at a low numerical cost using surrogate-assisted techniques. The optimized design features small size of only 0.25λg×0.19λg(28% miniaturization...

    Pełny tekst do pobrania w portalu

  • Asymmetrical-Slot Antenna with Enhanced Gain for Dual-Band Applications

    Publikacja

    Dual-band operation is an important feature of antennas to be applied in modern communication systems. Although high gain of radiators is rarely of concern in urban areas with densely located broadcasting stations, it becomes crucial for systems operating in more remote environments. In this work, a dual-band antenna with enhanced bandwidth is proposed. The structure consists of a driven element in the form of an asymmetrical radiator/slot...

    Pełny tekst do pobrania w portalu

  • ALS Data Filtration with Fuzzy Logic

    Ekstrakcji DTM pozyskanego z użyciem ALS (Airborne Laser Scanning) z chmury punktów, jest złożonym zadaniem, które wymaga wielu algorytmów i procedur numerycznych. Jednym z pierwszych kroków jest filtracja danych. Istnieje wiele różnych metod filtrowania i algorytmów. W tym artykule autorzy proponują metodę filtracji w oparciu o logikę rozmytą. Prezentują podstawowe informacje dotyczące logiki rozmytej, projekt reguł rozmytych...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Characterization and Filtration Efficiency of Sustainable PLA Fibers Obtained via a Hybrid 3D-Printed/Electrospinning Technique

    Publikacja

    - Materials - Rok 2021

    The enormous world demand for personal protective equipment to face the current SARS-CoV-2 epidemic has revealed two main weaknesses. On one hand, centralized production led to an initial shortage of respirators; on the other hand, the world demand for single-use equipment has had a direct and inevitable effect on the environment. Polylactide (PLA) is a biodegradable, biocompatible, and renewable thermoplastic polyester, mainly...

    Pełny tekst do pobrania w portalu

  • The authenticity in social media. Club and football players’ relations

    Publikacja

    The authenticity in social media is one of the crucial factors of brands success. In the era of fake news, illusions, manipulations or other artificial attributes of the virtuality and reality today it is a real source of value. The presented study aims to verify how football club and football players’ brands’ authenticity influence attitudinal loyalty in social media. Findings proved that the authenticity is something social media...

    Pełny tekst do pobrania w portalu

  • ECU calibration for gaseous dual fuel supply system in compression ignition engines

    Publikacja

    The dual fuel (DF) combustion mode is proven solution that allows to improve or get at the same level engine performance and reduce toxic compounds in exhaust gases which is confirmed by researchers and end-users. DF combustion mode uses two fuels gaseous fuel as a primary energy source and a pilot quantity of diesel fuel as ignition source. However, in order, to fully take advantage of the potential of the dual fuel mode, DF system...

    Pełny tekst do pobrania w portalu

  • Media architecture for post-modern society - new forms of participation

    Publikacja

    - Rok 2018

    The article shows the relationship between the characteristics of the post-modern society, and the development of media architecture with the function of interactivity. In this context, the duality of the features of post-modern society was emphasized: taking into account its location between creativity and consumerism, as well as on the border between the real and virtual word. The development of media architecture has been linked...

  • The impact of the shape of deep drilled well screen openings on the filtration process in full saturation conditions

    Publikacja

    - Czasopismo Techniczne - Rok 2018

    The authors propose a supplementary method of modelling seepage flow around the deep drilled well screen. The study applies 3D numerical modelling (FEM) in order to provide an in-depth analysis of the seepage process. The analysis of filtration parameters (flow distribution q(x,t) and pressure distribution p) was conducted using the ZSoil.PC software system. The analysis indicates that the shape of perforation is of secondary importance...

    Pełny tekst do pobrania w portalu

  • Image as a key factor of brand value at social media

    Publikacja

    - Logistyka - Rok 2015

    The paper aims to investigate the relationship between social media presence and activities and brand value for the most valuable Global Brands 2012 (Interbrandt 2013). Social media communication is an innovative way of communication. Brand value is a key performance indicator of brand strategy for managers. Brand and category image realized to be the key factor of investigated relation.

    Pełny tekst do pobrania w serwisie zewnętrznym

  • The effect of social media communication on consumer perceptions of brands

    Researchers and brand managers have limited understanding of the effects social media communication has on how consumers perceive brands. We investigated 504 Facebook users in order to observe the impact of firm-created and user-generated (UG) social media communication on brand equity (BE), brand attitude (BA) and purchase intention (PI) by using a standardized online survey throughout Poland. To test the conceptual model, we...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Dual-wavelength laser polarimeter and its performance capabilities

    Publikacja

    - OPTO-ELECTRONICS REVIEW - Rok 2017

    A dual-wavelength optical polarimetric approach has been proposed as a means of elimination of the systematic errors and estimation of the optical anisotropy parameters for a single DKDP crystal. Our HAUP-related polarimeter uses two semiconductor lasers with the neighbouring wavelengths of 635 nm and 650 nm. Based on the temperature dependence analysis of small characteristic azimuths of light polarization with respect to the...

    Pełny tekst do pobrania w portalu

  • Effectiveness of a dual surface modification of metallic interconnects for application in energy conversion devices

    Publikacja

    - INTERNATIONAL JOURNAL OF HYDROGEN ENERGY - Rok 2022

    A dual surface modification of an SOFC metallic interconnect with a Gd2O3 layer and an MnCo2O4 coating was evaluated. The tested samples were oxidized for 7000 h in air at 1073 K. Oxidation products were characterized using XRD, SEM-EDS, and confocal Raman imaging, and ASR was measured. The effect of gadolinium segregation at grain boundaries in Cr2O3 was evaluated using S/TEM-EDS. Area specific-resistance was measured and fuel...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • General analysis of braodband signal spatial filtration.

    Przedstawiono ogólną metodę wyznaczania charakterystyk kierunkowych filtrów przestrzennych dla hydroakustycznych sygnałów przestrzennych. Omówiono wpływ szerokości widma odbieranych sygnałów na szerokość wiązki i poziom listków bocznych. Pokazano skutki oszczędnych metod filtracji przestrzennej stosowanych przy odbiorze sygnałów wąskopasmowych, gdy odbierane są sygnały szerokopasmowe.

  • Measuring Consumers' Engagement With Brand-Related Social-Media Content. Development and Validation of a Scale that Identifies Levels of Social-Media Engagement with Brands

    Publikacja

    - JOURNAL OF ADVERTISING RESEARCH - Rok 2016

    The purpose of the current study was to develop a scale to measure the consumer's engagement with brand-related social-media content, based on three dimensions established in the framework of an earlier theoretical construct, “Consumer's Online Brand-Related Activities” (Muntinga, Moorman, and Smit, 2011). Qualitative techniques were used to generate an initial pool of items that captured different levels of consumer engagement...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Effects of social media communication on brand equity and brand purchase intention

    Publikacja

    - Rok 2013

    The author studied the effect of two different social media communication on brand equity and brand purchase intention. A total of 504 data sets were generated through a standardized online-survey and analysed with structural equation modeling. The results of the empirical study showed that both firm-created and user-generated social media communication influenced brand equity, consequently impacting brand purchase intention. This...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Dual-band antenna with improved gain for WLAN and ISM applications

    In this Letter, a dual-band antenna with an improved gain is proposed. The structure features 9.7 and 10.4 dBi gain within 2.4 GHz to 2.5 GHz and 5 GHz to 6 GHz bands, respectively. This makes it suitable for WLAN and ISM applications. The structure comprises an asymmetrical pair of radiators and slots suspended over a reflector. The antenna is optimised in a two-stage process using a trust-region-based gradient search algorithm....

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Wycena przedsiębiorstw należących do sektora media

    Publikacja

    W niniejszym rozdziale monografii Autorka przedstawia spółki notowane na GPW w Warszawie i należące do sektora media. Następnie podejmuje się wyceny ich wartości w oparciu o sześć metod: księgową, likwidacyjną (Wilcoxa-Gamblera), rynkową, dochodową, niemiecką i szwajcarską w latach 2001-2006. Podsumowanie tej części monografii stanowi porównanie odchyleń otrzymanych wyników analizy.

  • Personal Brand Value and Social Media, the Top Football Players’ Case

    Publikacja

    - Rok 2018

    Personal branding valuation and social media usage are new and empirically unexplored areas of research. The aim of the presented study is to determine how social media performance and sentiment are related to the value of a personal brand. Based on an example of 100 most valuable football players, in reference to transfermarkt.com and the sentione.com (sentiment analysis), the author points out the strongest...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Dual Labor Market

    Publikacja

    - Rok 2016

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Inverse surrogate models for fast geometry scaling of miniaturized dual-band couplers

    Publikacja

    Re-design of microwave structures for various sets of performance specifications is a challenging task, particularly for compact components where considerable electromagnetic (EM) cross-couplings make the relationships between geometry parameters and the structure responses complex. Here, we address geometry scaling of miniaturized dual-band couplers by means of inverse surrogate modeling. Our approach allows for fast estimation...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Two-phase flow in heterogeneous porous media with non-wetting phase trapping

    Publikacja

    - TRANSPORT IN POROUS MEDIA - Rok 2011

    This article presents amathematical model describing flowof two fluid phases in a heterogeneous porous medium. Zaproponowano model matematyczny przepływu dwufazowego w drobnoziarnistym ośrodku porowatym zawierającym inkluzje gruboziarniste. Inkluzje charakteryzują się niższą wartością ciśnienia wejścia dla płynu niezwilżającego (np. powietrze, ropa naftowa) niż materiał podstawowy. Podczas nawadniania takiego ośrodka dochodzi do...

  • On the material symmetry group for micromorphic media with applications to granular materials

    Within the framework of the theory of nonlinear elastic micromorphic continua we introduce the new definition of the local material symmetry group. The group consists of ordered triples of second- and third-order tensors describing such changes of a reference placement that cannot be recognized with any experiment. Using the definition we characterize the micromorphic isotropic media, micromorphic fluids, solids and special intermediate...

    Pełny tekst do pobrania w portalu

  • Fake News: Possibility of Identification in Post-Truth Media Ecology System

    Publikacja

    The main aim of the article is identification of the attitudes towards the processes of identification and verification of fake news in the environment of digital media. The subject of the research refers to the users’ attitudes towards fake news. As indicated by the research, the attitudes towards fake news are not unambiguous. About 2/3 of the respondents claim that they are not able to distinguish fake news from true information;...

    Pełny tekst do pobrania w portalu

  • Interactive and Media Architecture – From Social Encounters to City Planning Strategies

    Publikacja

    The paper searches into the potential of media and interactive projects to support participation and generate social encounters in public spaces. Moreover, it proposes implementation of media and interactive projects into city planning processes. On the basis of theoretical approaches, case studies and interdisciplinary surveys the paper gives insight how interactive and media architecture can engage people in activities in urban...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Customer Assessment of Brand Valuation and Social Media

    Publikacja

    - Rok 2016

    The research problem engaged in this article is to determine whether contemporary consumers are able to assess brand equity in the overabundance of brands and products with similar features and qualities. The author argues that in the existing circumstances when differences between brands become insignificant the consumer is not capable of assessing their equity adequately. In order to verify the thesis the author has accepted...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • RANS-based design optimization of dual-rotor wind turbines

    Publikacja

    - ENGINEERING COMPUTATIONS - Rok 2018

    Purpose An improvement in the energy efficiency of wind turbines can be achieved using dual rotors. Because of complex flow physics, the design of dual-rotor wind turbines (DRWTs) requires repetitive evaluations of computationally expensive partial differential equation (PDE) simulation models. Approaches for solving design optimization of DRWTs constrained by PDE simulations are investigated. The purpose of this study is to determine...

    Pełny tekst do pobrania w serwisie zewnętrznym