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Search results for: prc
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Etyczne dylematy PR-owca
PublicationPraca jest analizą wybranych dylematów etycznych osoby pełniącej funkcję specjalisty public relations, podstawowych wartości i zasad koniecznych do pełnienia tych funkcji.
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Modifications of the heat source model in numerical analyses of the metal-cored arc welding process
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Exploring perceptions of pro environmental educational mobile applications based on semantic field analysis
PublicationThe paper aims to identify multidimensional perceptions of mobile apps by their users. Special attention has been paid to pro-environmental educational apps. Semantic field analysis and measurement of emotional temperatures were performed to achieve this goal. Transcripts from seven focus group interviews were used as research material. The results indicate that functionality based on a reward or benefit system reinforces environmentally...
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Wynik analizy a jakość informacji środowiskowej. Opracowanie monograficzne z uwzględnieniem prac własnych
PublicationNa proces uzyskiwania wiarygodnych informacji o zanieczyszczeniu środowiska mają zasadniczy wpływ dwa aspekty:- wybór właściwych parametrów do monitorowania poziomu zanieczyszczenia;- odpowiednia jakość wyników oznaczania parametrów wytypowanych do monitoringu środowiska.Wyniki badań, przedstawione w niniejszym opracowaniu monograficznym, ujawniły, że stosowane techniki izolacji związków z grupy WWA i PCB z próbek wody, nie mogą...
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Opracowanie zestawu diagnostycznego do genetycznego typowania szczepów bakteryjnych metodą PCR MP
PublicationOmówiono etapy tworzenia zestawu diagnostycznego przeznaczonego do genetycznego typowania szczepów bakteryjnych wykorzystującego procedurę PCR MP (PCR Melting Profiles). Dokonano optymalizacji warunków i walidacji metody w celu przystosowania jej do potrzeb epidemiologicznej oceny zakażeń szpitalnych. Opracowany zestaw stwarza możliwości zastosowania go w laboratoriach prowadzących rutynowo badania diagnostyczne.
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Identification of Leaf Rust Resistance Genes in Selected Wheat Cultivars and Development of Multiplex PCR
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American Ginseng (Panax quinquefolium L.) as a Source of Bioactive Phytochemicals with Pro-Health Properties
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Plants of the Genus Terminalia: An Insight on Its Biological Potentials, Pre-Clinical and Clinical Studies
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Fast synchronous distribution network of data streams for RPC Muon Trigger in CMS experiment
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Rola argumentacji religijnej w kształtowaniu pro-środowiskowych postaw chrześcijan w Polsce
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PELP1 and SRC kinase as important molecules in the estrogen-mediated pathway in human testis and epididymis
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Nested PCR for the detection of Aspergillus species in maxillary sinus samples of patients with chronic sinusitis
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Experimental ORC micro-power plant for CHP application Part A: power plant arrangement
PublicationThe co-generative micro-power plant with the HFE7100 applied as a working medium was designed and built for experimental investigations. The heat output of the plant was assumed equal to 20 kW, while the electric output amounted to about 3kW. Examples of the results of the preliminary experimental research on a boiler, heat exchangers, a pump and a turbine-generator set are presented and analysed.
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Nonlinear secondary arc model use for evaluation of single pole auto-reclosing effectiveness
PublicationPurpose – The purpose of this paper is to discuss two evaluation methods of single pole autoreclosing process effectiveness in HV transmission lines. Secondary arc current and recovery voltage results obtained by load flow calculation are compared to the results obtained by the time domain simulations. Moreover, a nonlinear secondary arc implementation is presented. Design/methodology/approach – A computer simulation studies were...
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Effect of modified soybeen oil amount on rheological characteriza-tion of polyurethane pre-polymers
PublicationPolyurethanes (Pu’s) are the polymeric materials which have got urethane groups in the structure. The properties of Pu’s depend both on the method of preparation and monomers used. Polyurethanes are produced by two methods known as one step or two step method called as “pre-polymers method”, especially for the case of segmented polyurethanes (SPU’s). These materials are thermoplastic block copolymers of the (AB)n type consisting...
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Increase of power and efficiency of the 900 MW supercritical power plant through incorporation of the ORC
PublicationThe objective of the paper is to analyse thermodynamical and operational parameters of the supercritical power plant with reference conditions as well as following the introduction of the hybrid system incorporating ORC. In ORC the upper heat source is a stream of hot water from the system of heat recovery having temperature of 90 °C, which is additionally aided by heat from the bleeds of the steam turbine. Thermodynamical analysis...
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Operation of the 900 MW power plant with the ORC supplied from three heat sources
PublicationThe chapter is aimed at utilisation of waste heat in the reference supercritical power plant in the manner to produce electricity in ORC installation. The waste heat is available in the form of a stream of hot water at 90°C, recovered from the exhaust gases in the amount of 200MW. Such low enthalpy heat source is rather insufficient to produce a good quality vapour to feed the ORC turbine. Therefore an original approach to increase...
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Zwiększenie sprawności procesów technologicznych poprzez zastosowanie układów ORC i systemów trigeneracyjnych
PublicationPoprawa sprawności energetycznej procesów technologicznych - obok ograniczenia emisji gazów cieplarnianych i wykorzystania niekonwencjonalnych technologii do konwersji energii - stanowi obecnie najważniejszy element idei zrównoważonego rozwoju. Niniejsza praca wychodzi naprzeciw oczekiwaniom rynkowym, wskazując możliwości wpisania się w ten trend. Stanowi ona zbiór ogólnych wytycznych, opartych o literaturę przedmiotu i własne...
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Nuclear retention of pre-mRNA involving Cajal bodies during meiotic prophase in plants
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Semi-Markow Processes as Models of Devices´ Operating Process of Ship Pro-pulsion System
PublicationReferat zawiera formalny opis procesu eksploatacji urządzeń.
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The influence of the motor filtrers on harmonic current emmision in the pro-ective connection of drive systems.
PublicationThis paper contains detailed analysis of currents in protective wire in engine supplied from frequency converter without any external filters added. It was found that the peak value of current in protective conductor of engine was about 1500 mA at frequencies 5 Hz 50 Hz. In the continuation of research the dU/dt type motor filter and the sinusoidal filter were tested. It was found that the current in protective wire decreased...
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do[my] w blok: wnętrza. projekty adaptacji mieszkań wystawa prac studenckich
PublicationZaspa i Przymorze są aktualnie popularnymi, wysoko ocenianymi dzielnicami mieszkaniowymi. Bloki z lat 70. XX wieku to prefabrykowane, wielorodzinne budynki mieszkaniowe. Projekty studenckie pokazują, że mieszkania te mają potencjał wykreowania wygodnych zgodnych z bieżącymi trendami projektowymi, przestrzeni do zamieszkiwania, adaptowalnych do współczesnych oczekiwań. Zaprojektowane dla fikcyjnych mieszkańców wnętrza są podróżą...
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ADSRRS-fingerprinting and PCR MP techniques for studies of intraspecies genetic relatedness in Staphylococcus aureus
PublicationW pracy pokazano użyteczność dwóch nowych metod do typowania molekularnego Staphylococcus aureus, ADSRRS-fingerprinting (Amplification of DNA fragments Surrounding Rare Restriction Sites) i PCR MP (PCR melting profile). Przebadano 37 szczepów Staphylococcus aureus izolowanych od pacjentów z czyracznością. Jako metodę referencyjną zastosowano REA-PFGE. Okazało się, że izolaty Staphylococcus aureus z nosa od niektórych pacjentów...
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Kinetics of Intermetallic Phase Precipitation in Manual Metal Arc Welded Duplex Stainless Steels
PublicationThe article presents the influence of heat treatment on the kinetics of transformations in lean duplex LDX2101 steel and a weld made of standard duplex 2209 material, which was welded by manual metal arc welding. Changes in the microstructure, hardness, and magnetic phase content were analyzed after heat treatment was conducted at a temperature of 800 °C for a period ranging from 15 to 1440 min. Light and scanning microscopy, Vickers...
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Pre-analytical aspects in metabolomics of human biofluids – sample collection, handling, transport, and storage
PublicationMetabolomics is the field of omics research that offers valuable insights into the complex composition of biological samples. It has found wide application in clinical diagnostics, disease investigation, therapy prediction, monitoring of treatment efficiency, drug discovery, or in-depth analysis of sample composition. A suitable study design constitutes the fundamental requirements to ensure robust and reliable results from the...
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Homoisocitrate dehydrogenase from Candida albicans: properties, inhibition, and targeting by an antifungal pro-drug
PublicationThe LYS12 gene from Candida albicans, coding for homoisocitrate dehydrogenase was cloned and expressed as a His-tagged protein in Escherichia coli. The purified gene product catalyzes the Mg2+- and K+-dependent oxidative decarboxylation of homoisocitrate to alpha-ketoadipate. The recombinant enzyme demonstrates strict specificity for homoisocitrate. SDS-PAGE of CaHIcDH revealed its molecular mass of 42.6±1 kDa, while in size-exclusion...
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Subjective Quality Evaluation of Speech Signals Transmitted via BPL-PLC Wired System
PublicationThe broadband over power line – power line communication (BPL-PLC) cable is resistant to electricity stoppage and partial damage of phase conductors. It maintains continuity of transmission in case of an emergency. These features make it an ideal solution for delivering data, e.g. in an underground mine environment, especially clear and easily understandable voice messages. This paper describes a subjective quality evaluation of...
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Analysis of Video Transmission Capabilities in a Simulated OFDM-Based Supplementary BPL-PLC System
PublicationThe design and maintenance of a reliable communication system, especially in harsh working conditions for the oil and mining industry, brings many challenges. With the use of a video transmission system, one can monitor the crew and their working environment. Broadband over power line–power line communication (BPL-PLC) seems an ideal medium for such a service, since it enables the use of the existing wired infrastructure for supplementary...
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Principles and applications of Ligation Mediated PCR methods for DNA-based typing of microbial organisms
PublicationA significant number of DNA-based techniques has been introduced into the field of microorganisms’ characterization and taxonomy. These genomic fingerprinting methods were developed to detect DNA sequence polymorphisms by using general principles, such as restriction endonuclease analysis, molecular hybridization, and PCR amplification. In recent years, some alternative techniques based on ligation of oligonucleotide adapters before...
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Selection of an artificial pre-training neural network for the classification of inland vessels based on their images
PublicationArtificial neural networks (ANN) are the most commonly used algorithms for image classification problems. An image classifier takes an image or video as input and classifies it into one of the possible categories that it was trained to identify. They are applied in various areas such as security, defense, healthcare, biology, forensics, communication, etc. There is no need to create one’s own ANN because there are several pre-trained...
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The effect of pre-hydrogen charging on corrosion behaviour of superduplex stainless steel welded joints
PublicationThe paper presents results of research undertaken to determine the influence of hydrogen on passivity and corrosion resistance of 2507 super duplex stainless steel welded joints. Butt welded joints were made with low heat input using flux corded arc welding (FCAW) method. Coupons of 5.0 x 5.0 mm were cut from the welded joints containing weld metal (WM), heat affected zone (HAZ) and parent metal (PM). Hydrogen was introduced...
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Cykl 17 prac fotograficznych "Błękit Szadółek". Obiekt. instalacja ułożona z nakrętek.
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Influence of steam cooking on pro-health properties of Small and Large variety of Momordica charantia
PublicationSteam cooking is one of the most common preparations of Momordicacharantia dishes. This method improved the tastiness of the fruits but at the same time, some changes occurred in the volatile and non-volatile parts of their food matrices. In this study, for the first time these properties were correlated with the found substances affecting the bioactivity of this fruit. Two varieties of Momordicacharantia were analysed and compared....
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Comparative study of operation of condensing and traditional boilers equipped with the ORC module for electricity generation
PublicationCondensing technology applied to boilers is to make full use of thermal energy contained in the fuel. That means that additionaly the heat from condensation of exhaust gases can be used for the purposes of heating the domestic hot water and to cover the demand for central heating. The study analyzed the operation of the "traditional" boiler equipped with the ORC module as the similar arrangement but with the condensing boiler....
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Optimization of Saccharification Conditions of Lignocellulosic Biomass under Alkaline Pre-Treatment and Enzymatic Hydrolysis
PublicationPre-treatment is a significant step in the production of second-generation biofuels from waste lignocellulosic materials. Obtaining biofuels as a result of fermentation processes requires appropriate pre-treatment conditions ensuring the highest possible degree of saccharification of the feed material. An influence of the following process parameters were investigated for alkaline pre-treatment of Salix viminalis L.: catalyst concentration...
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PCR-RFLP assays for species-specific identification of fungi belonging to Scopulariopsis and related genera
PublicationFungi of the Scopulariopsis genus, commonly found in the environment, are opportunistic pathogens that can cause various types of human infections. So far, no efficient molecular method has been developed for species differentiation among Scopulariopsis and related genera. In order to advance this field, we have evaluated performance of polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) assays, based...
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Implementation of the FOPID Algorithm in the PLC Controller - PWR Thermal Power Control Case Study
PublicationIn the paper authors describe proposition of design and verification procedures of the discrete Fractional Order PID (FOPID) algorithm for control of the Pressurized Water Reactor (PWR) thermal power near its nominal operating point. The FOPID algorithm synthesis consists of: off-line optimal tunning of its parameters in continuous time-domain with LQ (Linear Quadratic) performance index and simplified models of nuclear reactor...
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Comparative study of operation of condensing and traditional boilers equipped with ORC module for electricity generation
PublicationThe study analyzed the operation of the "traditional" boiler equipped with the ORC module as the similar arrangement but with the condensing boiler. In the case of a conventional boiler there is noted a greater fuel consumption and the greater power generated than in the case of the unit with the condensing boiler. Postulated is the indicator in the form of a ratio of turbine power to the mass flow rate of fuel, which in turn gives...
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Hydrogen Production from Energy Poplar Preceded by MEA Pre-Treatment and Enzymatic Hydrolysis
PublicationThe need to pre-treat lignocellulosic biomass prior to dark fermentation results primarily from the composition of lignocellulose because lignin hinders the processing of hard wood towards useful products. Hence, in this work a two-step approach for the pre-treatment of energy poplar, including alkaline pre-treatment and enzymatic saccharification followed by fermentation has been studied. Monoethanolamine (MEA) was used as the...
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Experimental investigation of domestic micro-CHP based on the gas boiler fitted with ORC module
PublicationThe results of investigations conducted on the prototype of vapour driven micro-CHP unit integrated with a gas boiler are presented. The system enables cogeneration of heat and electric energy to cover the energy demand of household. The idea of such system is to produce electricity for own demand or for selling it to the electric grid – in such situation the system user will became the prosumer. A typical commercial gas boiler,...
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Diffusible hydrogen management in underwater wet self-shielded flux cored arc welding
PublicationThis article reports the effect of underwater wet welding parameters and conditions on the diffusible hydrogen content in deposited metal for welding with a self-shielded flux cored wire. The diffusible hydrogen content in deposited metal was determined using the glycerin method according to the Plackett-Burman design determining the significance of the effect of the stick out length, welding current, arc voltage, travel speed...
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Klauzula obejścia prawa podatkowego a zasada in dubio pro tributario: zależności i kontrowersje,
PublicationOd stycznia 2016 r. do przepisów Ordynacji podatkowej wprowadzono zasadę rozstrzygania wątpliwości na korzyść podatnika. Oczekuje się, że w I kwartale tego roku wprowadzona zostanie również kontrowersyjna zasada określana mianem klauzuli obejścia prawa podatkowego. Celem opracowania jest wykazanie, w jaki sposób mogłyby obok siebie egzystować zupełnie skrajne dwa rozwiązania: zasady in dubio pro tributario, stawiające w sprawach...
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Zakażenia bakteryjne w przewlekłym zapaleniu ucha środkowego - ocena przydatności diagnostyki molekularnej opartej o technikę PCR. Bacterial infection in chronic otitis media - assessment of usefulness of molecular diagnostic based in PCR method.
PublicationIdentyfikacja zakażeń w przewlekłym zapaleniu ucha środkowego jest trudna, o czym świadczą wysokie odsetki ujemnych wyników badań bakteriologicznych. Przyczyną tego jest trudność w uzyskiwaniu wiarygodnego materiału do badań oraz stosunkowo niska czułość klasycznych metod diagnostycznych. Amplifikacja bakteryjnego DNA techniką PCR jest badaniem, które może przyczynić się do zwiększenia efektywności i czułości badań bakteriologicznych....
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Wpływ wariantów termodynamicznych układów ORC i systemów trigeneracyjnych na poprawę ich sprawności
PublicationNiniejsza praca przedstawia systemowe podejście do problemu uzyskania optymalnej sprawności układów ORC (Organic Ranking Cycle), przy uwzględnieniu jako kryterium zarówno sprawności termodynamicznej, ekologicznego wpływu czynnika termodynamicznego na środowisko oraz kryteriów doboru rodzaju czynnika z punktu widzenia jego oceny i temperaturowych warunków pracy.
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Effect of Soft Handover on the Capacity of WCMDA/FDD Interfece Using MRC RAKE Receiver in Uplink
PublicationIn the paper the mechanism of soft and hard hanover in UMTS is presented. Simulation tests for different services having various performance requirements and transmission rates have beeen made. Simulation results showing effect of soft handover in comparison with hard handover on the capacity of WCMDA/FDD radio interfaceare described, when the RAKE receiver with Maximal Ratio Combining has been implemented in RNC.
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Micro Arc Oxidation of Mechanically Alloyed Binary Zn-1X (X = Mg or Sr) Alloys
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Wstępna koncepcja doboru czynnika roboczego obiegu ORC dla określonych źródeł ciepła odpadowego
PublicationW procesach technologicznych ciepło odpadowe stanowi nie zawsze do końca rozwiązany problem. Zagospodarowanie tego ciepła, szczególnie w przemyśle rafineryjnym i petrochemicznym, napotyka na wiele problemów, związanych z niską egzergią, znacznym rozproszeniem, dużym zróżnicowaniem parametrów i opłacalnością potencjalnej modernizacji. Jedną z obiecujących tutaj technologii utylizacji tego ciepła jest zastosowanie układu ORC. Przeprowadzono...
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Determination of butyltin stabilizers in PVC using Liquid-Phase microextraction with electrothermal atomic absorption spectrometry
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Impact of Pre-Sowing Red Light Treatment of Sweet Corn Seeds on the Quality and Quantity of Yield
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Altered Expression of ESR1, ESR2, PELP1 and c-SRC Genes Is Associated with Ovarian Cancer Manifestation
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