Wyniki wyszukiwania dla: SIEM, EVALUATION

As a substitution for hormone replacement therapy, many breast cancer patients use black cohosh (BC) extracts in combination with doxorubicin (DOX)-based chemotherapy. In this study, we evaluated the viability and survival of BC- and DOX-treated MCF-7 cells. A preclinical model of MCF-7 xenografts was used to determine the influence of BC and DOX administration on tumor growth and metabolism. The number of apoptotic cells after...

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Evaluation of the reference fuel consumption and CO2 emission of vehicle with using of the map of operating conditions for selected agglomeration

Publikacja

J. Kropiwnicki

- Journal of KONES - Rok 2010

Zaproponowana w pracy metoda tworzenia mapy warunków eksploatacji dla wybranej aglomeracji może zostać przeprowadzona przy wykorzystaniu tanich i prostych w obsłudze urządzeń. Podstawowym urządzeniem badawczym jest pojazd samochodowy wyposażony w system pomiaru położenia GPS z układem korekty wskazań wysokości i rejestracji parametrów jazdy. Zamieszczony w pracy przykład wykorzystania mapy warunków eksploatacji pokazuje możliwości...

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Data-Centric Dempster-Shafer Theory-Based Selfishness Thwarting via Trust Evaluation in MANETs and WSNs

Publikacja

J. Konorski
R. Orlikowski

- Rok 2009

Przedstawiono ramy wymiany informacji reputacyjnej pomiędzy terminalami sieci mobilnej ad hoc lub sensorowej, prowadzące do efektywnej lokalizacji terminali egoistycznych i jednocześnie zapobiegające skutkom fałszywych rekomendacji. Integrację miar zaufania i rekomendacji reputacyjnych oparto na teorii Dempstera-Shafera.

Evaluation of electrical parameters of traction supply system for complex railway traffic conditions, using simulation methods

Publikacja

- Rok 2009

Development of electrified transport systems, railways modernization, expansion of urban transport networks, purchases of modern rolling stock causes that updating of electric traction supply system is necessary. This chapter presents an effective method for electrical parameters of traction supply system evaluation, using simulation methods.

Evaluation of sound event detection, classification and localization in the presence of background noise for acoustic surveillance of hazardous situations

Publikacja

- Rok 2014

An evaluation of the sound event detection, classification and localization of hazardous acoustic events in the presence of background noise of different types and changing intensities is presented. The methods for separating foreground events from the acoustic background are introduced. The classifier, based on a Support Vector Machine algorithm, is described. The set of features and samples used for the training of the classifier...

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Can Evaluation Patterns Enable End Users to Evaluate the Quality of an e-learning System? An Exploratory Study.

Publikacja

C. Ardito
R. Lanzilotti
M. Sikorski
I. Garnik

- Rok 2014

This paper presents the results of an exploratory study whose main aim is to verify if the Pattern-Based (PB) inspection technique enables end users to perform reliable evaluation of e-learning systems in real work-related settings. The study involved 13 Polish and Italian participants, who did not have an HCI background, but used e-learning platforms for didactic and/or administrative purposes. The study revealed that the participants...

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Groundwater flow modelling of multi-aquifer systems for regional resources evaluation: the Gdansk hydogeological system, Poland

Publikacja

B. Jaworska-Szulc

- HYDROGEOLOGY JOURNAL - Rok 2009

W celu oceny regionalnych zasobów gdańskiego systemu hydrogeologicznego zbudowano matematyczny model przepływu wód. Obszar badań objął około 2800 km2. Dane pozyskano z ponad 1700 otworów badawczych. Na podstawie modelu oszacowano zasoby dla wszystkich pieter wodonośnych: plejstoceńskiego, neogeńsko-paleogeńskiego i kredowego. Na podstawie analizy równania Bredehoef'a ustalono, że aktualna eksploatacja jest zbliżona do poziomu ''zrównoważonego...

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A new methodological approach to the noise threat evaluation based on the selected physiological properties of the human hearing system

Publikacja

- Rok 2009

A new way of assessment of noise-induced harmful effects on human hearing system is presented in the paper. The method takes into consideration properties of the selected physiological human hearing system. On the basis of the hearing examinations and noise measurements results and psychoacoustical noise dosimeter performance the new indicators of the noise harmfulness were proposed. The evaluation of the proposed indicators were...

Voltage and frequency regulation of a standalone induction generator by reduced-rating power electronic compensators - comparative evaluation

Publikacja

- Rok 2015

In this paper are considered two fundamental topologies of power electronic compensators for voltage and frequency control of a standalone self-excited induction generator (IG) system. These are voltage and current source inverter based shunt compensators with energy storage. The aim of this study is to assess main features of both topologies in dynamic and steady-state IG operation. The whole system is modelled with the aid of...

Evaluation of apparent Young׳s modulus of the composite polymer layers used as sliding surfaces in hydrodynamic thrust bearings

Publikacja

- TRIBOLOGY INTERNATIONAL - Rok 2016

Hydrodynamic bearings with a polymer sliding layer are able to operate in severe conditions, mainly due to favorable properties of the polymers. The goal of this research was to evaluate apparent Young׳s modulus of two types of the polymer composite layers used for sliding surfaces in hydrodynamic bearings, as a function of temperature. The Young׳s modulus was evaluated on the basis of compression tests carried out on samples obtained...

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Evaluation of cavitation erosion-corrosion degradation of mild steel by means of Dynamic Impedance Spectroscopy in galvanostatic mode

Publikacja

- CORROSION SCIENCE - Rok 2011

Przedstawiono wyniki badań degradacji stali węglowych na skutek oddziaływania erozji-korozji kawitacyjnej. Do analizy wykorzystano technikę Dynamicznej Elektrochemicznej Spektroskopii Impedancyjnej w trybie galwanostatycznym, bliżej odwzrorowującym warunki naturalne. Do oceny stopnia degradacji posłużyły również funkcja ubytku masy MDPR oraz obrazy mikroskopowe SEM. Potwierdzono wpływ łączonej degradacji erozyjno-korozyjnej na...

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Nano-particle doped hydroxyapatite material evaluation using Spectroscopic Polarization Sensitive Optical Coherence Tomography

Publikacja

- Rok 2015

Bio-ceramics such as hydroxyapatite (HAp) are widely used materials in medical applications, especially as an interface between implants and living tissues. There are many ways of creating structures from HAp like electrochemical assisted deposition, biomimetic, electrophoresis, pulsed laser deposition or sol-gel processing. Our research is based on analyzing the parameters of the sol-gel method for creating thin layers of HAp....

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Synthesis and biological evaluation of fluorinated 3-phenylcoumarin-7-O-sulfamate derivatives as steroid sulfatase inhibitors

Publikacja

- Chemical Biology & Drug Design - Rok 2016

In the present work, we report the initial results of our study on a series of 3-phenylcoumarin sulfamate-based compounds containing C-F bonds as a novel inhibitors of steroid sulfatase (STS). The new compounds are potent STS inhibitors, possessing more than 10 times higher inhibitory potency than coumarin-7-O-sulfamate. In the course of our investigation, compounds 2b and 2c demonstrated the highest inhibitory effect in the enzymatic...

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THE EVALUATION OF THE ABRASIVE WEAR OF THE TI13Nb13ZR ALLOY IMPLANTED BY NITROGEN IONS FOR FRICTION COMPONENTS OF THE HIP JOINT ENDOPROSTHESES

Publikacja

K. Zasińska
A. Piątkowska

- TRIBOLOGIA - Rok 2015

Z uwagi na potrzeby społeczne, a zwłaszcza rosnące zapotrzebowanie na endoprotezy stawów biodrowego i kolanowego oraz uwzględniając fakt, że procesy tribologiczne odgrywają wiodącą rolę w procesie utraty stabilności endoprotez ortopedycznych i decydują o ich trwałości, uznano za celowe przeprowadzenie oceny wpływu implantacji jonowej na zużycie ścierne biostopu Ti13Nb13Zr. Do badań wykorzystano pary trące: nieimplantowany stop...

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Vision-based parking lot occupancy evaluation system using 2D separable discrete wavelet transform

Publikacja

- Bulletin of the Polish Academy of Sciences-Technical Sciences - Rok 2015

A simple system for rough estimation of the occupancy of an ad-hoc organized parking lot is presented. A reasonably simple microprocessor hardware with a low resolution monochrome video camera observing the parking lot from the location high above the parking surface is capable of running the proposed 2-D separable discrete wavelet transform (DWT)-based algorithm, reporting the percentage of the observed parking area occupied by...

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Evaluation and behaviour of slowly biodegradable substrate on mathematical modelling of oxygen uptake rate in activated sludge systems

Publikacja

J. Drewnowski

- Rok 2015

The effect of the readily biodegradable (Ss) fraction in activated sludge systems has been extensively investigated, but only minor information can be found about the effect of Xs on OUR in activated sludge systems. The aim of this study was to determine the evaluation and behaviour of Xs on mathematical modelling of OUR using ASM2d and its modification. The essential study was divided into two major parts: experimental investigation...

Problems of modelling toxic compounds emitted by a marine internal combustion engine for the evaluation of its structure parameters

Publikacja

- Combustion Engines - Rok 2015

The paper presents the possibility of using an analytical study of the engine exhaust ignition to evaluate the technical condition of the selected components. Software tools available for the analysis of experimental data commonly use multiple regression model that allows the study of the effects and iterations between model input quantities and one output variable. The use of multi-equation models gives a lot of freedom in the...

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Experimental and numerical evaluation of mechanical behaviour of composite structural insulated wall panels under edgewise compression

Publikacja

- Rok 2016

A composite structural insulated sandwich panel (CSIP) is a quite novel approach to the idea of sandwich structures. A series of natural-scale experimental test is required each time a change in panel’s geometry is planned and a reliable computational tool is required to precede actual laboratory testing with virtual simulations. An attempt of creating such a tool has been made with use of a commercial FEM code ABAQUS, in order...

Evaluation of candidate reference material obtained from selenium - enriched sprouts for the purpose of selenium speciation analysis

Publikacja

- LWT-FOOD SCIENCE AND TECHNOLOGY - Rok 2016

Selenium is an essential element in animals and humans. Diet supplementation with selenium-rich vegetables has better chemoprotective effect than Se (IV) and SeMet. The production of selenium-enriched vegetables requires a preliminary stage in soil preparation, which may subsequently pose a risk of soil contamination. It seems that the sprouting of seeds under controlled conditions would be a good solution for delivering SeMetSeCys...

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Techno‐economic evaluation of a natural deep eutectic solvent‐based biorefinery: Exploring different design scenarios

Publikacja

A. K. Kumar
S. Sharma
G. Dixit
E. Shah
A. Patel
G. Boczkaj

- Biofuels Bioproducts & Biorefining-Biofpr - Rok 2020

This paper presents a comprehensive techno‐economic evaluation of an integrated natural deep eutectic solvent (NADES)‐based biorefinery – a 1 ton day−1 capacity design plant. The key parameters include payback period, net present value (NPV), and internal rate of return (IRR). These were compared with the parameters of conventional biorefineries. The ‘n th plant’ results clearly revealed that the single product‐based biorefinery...

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Theoretical and Economic Evaluation of Low-Cost Deep Eutectic Solvents for Effective Biogas Upgrading to Bio-Methane

Publikacja

- ENERGIES - Rok 2020

This paper presents the theoretical screening of 23 low-cost deep eutectic solvents (DESs) as absorbents for effective removal of the main impurities from biogas streams using a conductor-like screening model for real solvents (COSMO-RS). Based on thermodynamic parameters, i.e., the activity coefficient, excess enthalpy, and Henry’s constant, two DESs composed of choline chloride: urea in a 1:2 molar ratio (ChCl:U 1:2), and choline...

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Discussion of “CPT Evaluation of Yield Stress Profiles in Soils” by Shehab S. Agaiby and Paul W. Mayne

Publikacja

L. Bałachowski

- JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING - Rok 2020

Veryfication of the procedure to estimate overconsolidation ratio in sands using the results of mini-cone penetration tests in centrifuge.

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Numerical evaluation of dynamic response of an experimentally tested base-isolated and fixed-base steel structure model

Publikacja

- Rok 2021

Seismic isolation is recognized as one of the most popular and effective methods of protecting structures during earthquake. The present paper is focused on the comparison be-tween the dynamic responses of buildings with fixed and isolated bases exposed to seismic exci-tations. The aim of the study is to investigate the effectiveness of a simplified base isolation numerical modelling technique using the linear springs. One-storey...

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First evaluation of wastewater discharge influence on marine water contamination in the vicinity of Arctowski Station (Maritime Antarctica)

Publikacja

- SCIENCE OF THE TOTAL ENVIRONMENT - Rok 2021

In Antarctica,waste is generatedmainly during scientific research programmes and related logistics. In this study, the impact ofwastewater on the western shore of Admiralty Baywas investigated during austral summer in 2017 and 2019. A range of physicochemical parameters and the presence of selected trace metals, formaldehyde and different groups of surfactants were determined in wastewater coming from Arctowski Station and in nearby coastal...

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Evaluation of the resistance of steel–concrete adhesive connection in reinforced concrete beams using guided wave propagation

Publikacja

- Archives of Civil and Mechanical Engineering - Rok 2020

The development of the nondestructive diagnostic methods is of significant importance in the last decades. A special attention is paid to diagnostics of reinforced concrete structures, which are very popular in the civil engineering field. A possible use of the guided waves in the estimation of the resistance of steel–concrete adhesive connection is studied in the following paper. The relationships relating adhesive connection...

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EVALUATION OF SOUND QUALITY FEATURES ON ENVIRONMENTAL NOISE EFFECTS – A CASE STUDY APPLIED TO ROAD TRAFFIC NOISE

Publikacja

W. Paszkowski
J. Kotus
T. Poremski
B. Kostek

- Metrology and Measurement Systems - Rok 2018

The paper shows a study on the relationship between noise measures and sound quality (SQ) features that are related to annoyance caused by the traffic noise. First, a methodology to perform analyses related to the traffic noise annoyance is described including references to parameters of the assessment of road noise sources. Next, the measurement setup, location and results are presented along with the derived sound quality features....

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Evaluation of the stiffness modulus and phase angle of cold in-place recycled mix-tures for long curing periods

Publikacja

- Rok 2019

Article presents the changes inbehaviour of cold-in place recycling mixtures made using cement and bituminous emulsion (CIR mixtures) after anelongated time of curing. Most of the available literatureregarding change instiffness modulus and phase angle presents resultsfor a maximum of several dozen days,which makesit difficult to predict the behaviour over the whole life of the compacted layer. The article...

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A Method for the Evaluation of Urban Freight Transport Models as a Tool for Improving the Delivery of Sustainable Urban Transport Policy

Publikacja

D. Kaszubowski

- Sustainability - Rok 2019

The article presents a method which helps local authorities to evaluate urban freight transport models. Given the complex requirements for input data and the inability to supply them for most cities, a proper quantitative evaluation of model functionality may be quite difficult for local authorities. Freight transport models designed to support sustainable urban freight transport objectives are a particular example. To overcome...

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Peptide conjugates of lactoferricin analogues and antimicrobials—Design, chemical synthesis, evaluation of antimicrobial activity and mammalian cytotoxicity

Publikacja

N. Ptaszyńska
K. Olkiewicz
J. Okońska
K. Gucwa
A. Łęgowska
A. Gitlin-Domagalska
D. Dawid
J. J. Lica
M. Heldt
S. Milewski... i 2 innych

- PEPTIDES - Rok 2019

Eight new peptide conjugates composed of modified bovine lactoferricin truncated analogues (LFcinB) and oneof the three antimicrobials — ciprofloxacin (CIP), levofloxacin (LVX), and fluconazole (FLC) — were synthesized. Four different linkers were applied to connect a peptide and an antimicrobial agent. The FLC-containing peptidic conjugates were synthesized using the “click chemistry” method. This novel approach is reported here...

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Evaluation of flavour profiles in e-cigarette refill solutions using gas chromatography–tandem mass spectrometry

Publikacja

- JOURNAL OF CHROMATOGRAPHY A - Rok 2018

Many flavour compounds that are present in e-liquids for e-cigarettes are responsible for specific tastes and smoking sensations for users. Data concerning content and specific types of flavours is often limited and unknown to users. The aim of the research was to define and compare flavour profiles of e-liquids with the same group taste from different manufacturers. Gas chromatography coupled with tandem mass spectrometry (GC–MS/MS)...

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Non-Gaussian Resistance Fluctuations in Gold-Nanoparticle-Based Gas Sensors: An Appraisal of Different Evaluation Techniques

Publikacja

Ł. Lentka
J. Smulko
M. Kotarski
C. Granqvist
R. Ionescu

- SENSORS - Rok 2017

Volatile organic compounds, such as formaldehyde, can be used as biomarkers in human exhaled breath in order to non-invasively detect various diseases, and the same compounds are of much interest also in the context of environmental monitoring and protection. Here, we report on a recently-developed gas sensor, based on surface-functionalized gold nanoparticles, which is able to generate voltage noise with a distinctly non-Gaussian...

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Synthesis, Chemical Characterization and Multiscale Biological Evaluation of a dimericcRGD Peptide for Targeted Imaging of αVβ3 Integrin Activity

Publikacja

J. Hedhli
A. Czerwiński
M. Schuelke
A. Płoska
P. Sowiński
L. La Hood
S. B. Mamer
J. A. Cole
P. Czaplewska
M. Banach... i 4 innych

- Scientific Reports - Rok 2017

Cyclic peptides containing the Arg-Gly-Asp (RGD) sequence have been shown to specifically bind the angiogenesis biomarker α V β3 integrin. We report the synthesis, chemical characterization, and biological evaluation of two novel dimeric cyclic RGD-based molecular probes for the targeted imaging of α V β3 activity (a radiolabeled version, 64Cu-NOTA-PEG4-cRGD2, for PET imaging, and a fluorescent version, FITC-PEG4-cRGD2, for in...

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Evaluation of hydrogen degradation susceptibility of high-strength weldable steel subjected to cathodic polarization in sea-water

Publikacja

J. Ćwiek
P. Domżalicki

- Rok 2005

Ocenę podatności stali spawalnych o wysokiej wytrzymałości ich złączy spawanych na kruchość wodorową przeprowadzono z wykorzystaniem próby rozciągania ze stałą, niską szybkością odkształcenia w środowisku wody morskiej przy polaryzacji katodowej. Wykonano próby elektrochemiczne przenikania wodoru w wodzie morskiej dla oceny dyfuzji i pułapkowania wodoru. Badano wpływ bakterii redukujących siarczany na absorpcję wodoru w środowisku...

Site-to-site distance distribution in flexible molecules: theoretical evaluation of the donor and/or acceptor fluorescence decay function

Publikacja

A. Czuper
J. Kuśba
J. R. Lakowicz

- Rok 2005

Przedstawiono wyrażenie teoretyczne opisujące zależność funkcji zaniku fluorescencji od rozkładu odległości P(r) pomiędzy donorami i akceptorami w giętkich molekułach dwuchromoforowych. Wyrażenie uwzględnia wiekoeksponencjalny zanik izolowanych donorów i akceptorów, a także możliwość niekompletnego oznakowania molekuł akceptorami. Przyjęto, że względne zmiany odległości donorów i akceptorów w czasie życia fluorescencji donora mogą...

Problems of Small Recreation Areas Valuation-Forest Refugium in the Silesia Park in Chorzów

Publikacja

D. Panasiuk

- Economic and Environmental Studies - Rok 2017

VALUATION OF EMBEDDED OPTIONS IN NON-MARKETABLE CALLABLE BONDS: A NEW NUMERICAL APPROACH

Publikacja

R. Skalický
M. Zinecker
A. P. Balcerzak
M. B. Pietrzak
E. Rogalska

- Technological and Economic Development of Economy - Rok 2022

The issue of how to price options embedded in callable bonds has attracted a lot of interest over the years. The usual bond valuation methods rely on yield curves, risk premium, and other parameters to estimate interest rates used in discounted cash flow calculations. The option to retire the bond is, however, neglected in the standard pricing models, causing a systematic overvaluation of callable bonds. In the event of a decline...

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Valuation method for operation of crankshaft-piston assembly in combustion engines in energy approach

Publikacja

J. Girtler

- Journal of Polish CIMEEAC - Rok 2011

Przedstawiono propozycję wartościowania (ilościowego określenia) działania dowolnego układu korbowo-tłokowego silnika o zapłonie samoczynnym, w którym zachodzą oddziaływania energetyczne w określonym czasie. Działanie to rozumiane jest jako przekazywanie odbiornikowi energii w ustalonym czasie, w którym zachodzi przetwarzanie i przenoszenie energii w formie pracy i ciepła. Wartościowanie działania układów korbowo-tłokowych silników...

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Business Process Management Systems: Evolution and Development Trends

Publikacja

M. Szelągowski
A. Lupeikiene

- Informatica - Rok 2020

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