Wyniki wyszukiwania dla: PORTFOLIO THEORY, POLISH CAPITAL MARKET, ESTIMATION WINDOW, MINIMAL RISK, MAXIMUM EFFICIENCY

• Risk Identification Patterns for Software Projects.

  Publikacja

  • J. Miler
  • J. Górski

  - Rok 2004

  Artykuł prezentuje metodę identyfikacji ryzyka w projektach informatycznych z użyciem wzorców ryzyka odnoszących się do modelu procesu projektowego. W artykule zdefiniowano meta-model dla modelowania procesów ukierunkowany na analizę ryzyka oraz proste i złożone wzorce ryzyka wywiedzione z tego meta-modelu, jak również pokazano przykładowe użycie wzorców do opisu czynników ryzyka odnoszących się do modelu RUP. Metodę poddano walidacji...

• Frameworks for uncertainly representation in risk assessments

  Publikacja

  • K. Kosmowski
  • M. Kwiesielewicz

  - Rok 2003

  Artykuł dotyczy wybranych zagadnień związanych z niepewnością w ilościowych obliczeniach analizy ryzyka. Problem ten stał się bardzo istotny, ponieważ wystąpiły wymagania w określaniu niepewności w procedurach obliczeń ryzyka.Dyskutuje się potencjalne źródła niepewności oraz dokonuje przeglądu teoretycznych ram do modelowania niepewności. Dla złożonych systemów ryzyka proponuje się obliczenia przedziałowo (rozmyto) probabilistyczne,...

• A service-oriented approach to the identification of IT Risk

  Publikacja

  • J. Miler

  - Rok 2005

  Artykuł przedstawia ogólne podejście do identyfikacji ryzyka eksploatacji systemów informatycznych, które obejmuje bezpieczeństwo, ochronę, prywatność oraz uzależnienie. Podejście oparte jest na badaniu trybów awarii usług dostarczanych użytkownikom przez oprogramowanie. Identyfikacja ryzyka na podstawie przeglądu usług uzupełniana jest listami kontrolnymi wyprowadzonymi ze standardów, a także klasycznymi technikami analizy bezpieczeństwa...

• Flood zones - a risk for the urban areas

  Publikacja

  • A. Magnuszewski
  • J. Suchożebrski
  • M. Szydłowski
  • M. Gutry-Korycka

  - Rok 2005

  Przedstawiono studium dotyczące wyznaczenia stref zagrożenia powodziowego dla miasta Warszawy wskutek wezbrań rzeki Wisły. Do oszacowania zasięgu stref wykorzystano matematyczny model ustalonego przepływu wolnozmiennego oraz numeryczny model terenu doliny rzeki. Do zobrazowania uzyskanych wyników zastosowano system GIS. Na podstawie uzyskanych wyników zidentyfikowano obszary miasta Warszawy narażone na ewentualną powódź oraz odcinki...

• Strategic Risk Measures in Road Traffic

  Publikacja

  • K. Jamroz

  - Journal of KONBiN - Rok 2010

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• Influence of finishing colour on the efficiency of automated production line for wooden doors

  Publikacja

  • Z. Kwidziński
  • M. Chodnicki
  • Ł. Sankiewicz
  • B. Knitowski
  • T. Rogoziński

  - Rok 2023

  Porta KMI Poland S.A. company has implemented a fully automated intelligent technological line TechnoPORTA for customized mass-production of technical door leaves. Each door leaf is provided with a unique QR code. It allows the line modules to individually adjust the machining parameters to the currently processed element according to the IT controlling system. Before en-tering the TechnoPorta line, the door leaves are not sorted,...

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• The Impact of Trade Integration with the European Union on Productivity in a Posttransition Economy: The Case of Polish Manufacturing Sectors

  Publikacja

  • A. Parteka
  • J. Wolszczak-Derlacz

  - EMERGING MARKETS FINANCE AND TRADE - Rok 2013

  This paper addresses the relationship between productivity growth in Polish manufacturing sectors and forces stemming from trade integration with the European Union. Empirical analysis (1995-2006) is based on sector-level bilateral data concerning both domestic (Polish) and foreign (partner countries from the enlarged European Union) markets' characteristics and their degree of openness. The main results indicate that, both in...

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• Sustainable Activity of Cultural Service Consumers of Social Media Users—Influence on the Brand Capital of Cultural Institutions

  Publikacja

  • Ł. Wróblewski
  • K. Bilińska-Reformat
  • M. Grzesiak

  - Sustainability - Rok 2018

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• Reliability estimation of underground horizontal fuel tank limit states

  Publikacja

  • P. Sorn
  • M. Sondej
  • J. Górski

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Rok 2023

  Fuel tanks are designed with regard to standard loads and operating conditions. The investigations of the paper show the impact of such factors as tank corrosion and other means on the variation of stress fields and deformation of the underground horizontal tank shell. The introduction of probabilistic methods allows for structural reliability assessment. While the computational time of the entire tank FEM model is high, the preliminary...

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• ESTIMATION OF NONSTATIONARY HARMONIC SIGNALS AND ITS APPLICATION TO ACTIVE CONTROL OF MRI NOISE

  Publikacja

  • M. Niedźwiecki
  • M. Meller
  • Y. Kajikawa
  • D. Łukwiński

  - Rok 2013

  A new adaptive comb filtering algorithm, capable of tracking the fundamental frequency and amplitudes of different frequency components of a nonstationary harmonic signal embedded in white measurement noise, is proposed. Frequency tracking characteristics of the new scheme are studied analytically, proving (under Gaussian assumptions and optimal tuning) its statistical efficiency for quasi-linear frequency changes. Laboratory tests...

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• An evaluation and explanation of (in)efficiency in higher education institutions in Europe and the U.S. with the application of two-stage semi-parametric DEA

  Publikacja

  • J. Wolszczak-Derlacz

  - Rok 2014

  This study uses data envelopment analysis (DEA) to evaluate the relative efficiency of 500 higher education institutions (HEIs) in ten European countries and the U.S. for the period between 2000 and 2010. Efficiency scores are determined using different input-output sets (inputs: total revenue, academic staff, administration staff, total number of students; outputs: total number of publications, number of scientific articles, graduates)...

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• Sensor Position Estimation Method for IoT Using Mobile Reference Node

  Publikacja

  • J. Stefański
  • J. Sadowski

  - IEEE Access - Rok 2020

  The paper proposes an innovative method of locating objects for the Internet of Things (IoT). The proposed method allows the position of a fixed measuring sensor (MS) to be estimated using one mobile base station with a known position moving around the MS. The mathematical analysis of the method, and three algorithms — Newton’s (NA), gradient descent (GD) and genetic (GA) — for solving the system of non-linear positional equations...

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• Public Lighting in a Context of Regeneration Processes in Polish Cities

  Publikacja

  • J. Martyniuk-Pęczek
  • N. Sokół

  - Rok 2015

  The purpose of this paper is to reflect on the role of electric lighting design in urban regeneration processes. The landscape of the modern city is the result of an accumulation of the various physical, economic, social and cultural layers over the centuries. Urban lighting may be described as one of the physical layers which due recent developments in the technology of efficient light sources overcomes a major evolution. With...

• First report on echinocandin resistant Polish Candida isolates

  Publikacja

  • M. Mroczyńska-Szeląg
  • A. Brillowska-Dąbrowska

  - Acta Biochimica Polonica - Rok 2019

  Purpose: Candida spp. are ranked as one of the four major causative agents of fungal infections. The number of infections caused by Candida species resistant to fluconazole, which is applied as the first line drug in candidiasis treatment, increases every year. In such cases the application of echinocandin is necessary. Echinocandin susceptibility testing has become a routine laboratory practice in many countries due to the increasing...

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• HYGRO-MAGNETIC VIBRATION OF THE SINGLE-WALLED CARBON NANOTUBE WITH NONLINEAR TEMPERATURE DISTRIBUTION BASED ON A MODIFIED BEAM THEORY AND NONLOCAL STRAIN GRADIENT MODEL

  Publikacja

  • J. Subrat Kumar
  • S. Chakraverty
  • M. Malikan
  • H. M. Sedighi

  - International Journal of Applied Mechanics - Rok 2020

  In this study, vibration analysis of single-walled carbon nanotube (SWCNT) has been carried out by using a refined beam theory, namely one variable shear deformation beam theory. This approach has one variable lesser than a contractual shear deformation theory such as first-order shear deformation theory (FSDT) and acts like classical beam approach but with considering shear deformations. The SWCNT has been placed in an axial or...

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• Tacit knowledge acquisition & sharing, and its influence on innovations: A Polish/US cross-country study

  Publikacja

  • W. Kucharska
  • G. S. Erickson

  - INTERNATIONAL JOURNAL OF INFORMATION MANAGEMENT - Rok 2023

  This study measures the relationship between tacit knowledge sharing and innovation in the Polish (n=350) and US (n=379) IT industries. Conceptually, the study identifies the potential sources of tacit knowledge development by individuals. That is, the study examines how “learning by doing” and “learning by interaction” lead to a willingness to share knowledge and, as a consequence, to support process and product/service innovation....

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• A novel method of local chirp-rate estimation of LFM chirp signals in the time-frequency domain

  Publikacja

  • K. Czarnecki
  • M. Moszyński

  - Rok 2013

  In the paper, novel dynamic representations of a complex signal in the time-frequency domain are introduced. The proposed approach is based on using the gradient of the short-time Fourier transform complex phase. A channelized instantaneous complex frequency (CICF) and a complex local group delay (CLGD) are included in the presented signal representations. An application of the newly-introduced distributions is demonstrated by...

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• Risk Assessment Due To Customs Delays In Supply Chains By Fuzzy Logic

  Publikacja

  • I. Medvediev
  • D. Muzylyov
  • J. Montewka

  - Rok 2024

  Due to violations of existing trade relations, cargo flows between the European Union and Ukraine have been redistributed. As a result, new supply chains have been created that have increased the tension on ground transport, including road and rail. Unfortunately, this has caused significant delays when crossing the border, which has led to a greater increase in the total delivery time of goods. Therefore, to plan for effective...

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• Bending analysis of functionally graded nanoplates based on a higher-order shear deformation theory using dynamic relaxation method

  Publikacja

  • M. E. Golmakani
  • M. Malikan
  • S. Golshani Pour
  • V. Eremeev

  - CONTINUUM MECHANICS AND THERMODYNAMICS - Rok 2023

  In this paper, bending analysis of rectangular functionally graded (FG) nanoplates under a uniform transverse load has been considered based on the modified couple stress theory. Using Hamilton’s principle, governing equations are derived based on a higher-order shear deformation theory (HSDT). The set of coupled equations are solved using the dynamic relaxation (DR) method combined with finite difference (FD) discretization technique...

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• Treatment of insomnia in older adults. Recommendations of the Polish Sleep Research Society, Polish Society of Family Medicine and the Polish Psychiatric Association

  Publikacja

  • A. Wichniak
  • P. Bieńkowski
  • R. Dąbrowski
  • A. Mastalerz-Migas
  • J. Rymaszewska

  - Psychiatria Polska - Rok 2023

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• Recommendations of the Polish Paediatric Society, the Polish Society of Vaccinology, and the Polish Society of Family Medicine on meningococcal vaccinations in children and adults in Poland

  Publikacja

  • E. Kuchar
  • H. Czajka
  • E. Gowin
  • A. Nitsch-Osuch
  • A. Skoczyńska
  • L. Szenborn
  • A. Wrotek
  • J. Wysocki
  • A. Mastalerz-Migas
  • J. Peregud-Pogorzelski
  • T. Jackowska

  - Pediatria Polska - Rok 2022

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• Estimation of cavitation erosion resistance of materials

  Publikacja

  • M. Szkodo

  - Advances in Materials Science - Rok 2006

  W pracy przedstawiono ocenę odporności kawitacyjnej 17 materiałów. Do opisu odporności kawitacyjnej zaproponowano nowy wskaźnik liczbowy uwzględniający długość okresu inkubacji, maksymalną prędkość niszczenia oraz czas po którym wystąpi maksymalna prędkość niszczenia materiału. Zaproponowany wskaźnik porównano ze wskaźnikiem δcav, który reprezentuje całą krzywą erozji kawitacyjnej materiału.

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• Shift-Msplit* Estimation in Deformation Analyses

  Publikacja

  • Z. Wiśniewski
  • M. Zienkiewicz
  • M. Zienkiewicz

  - JOURNAL OF SURVEYING ENGINEERING-ASCE - Rok 2016

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• Estimation of vehicle operational fuel consumption

  Publikacja

  • J. Kropiwnicki

  - Combustion Engines - Rok 2010

  W pracy przedstawiono metodę umożliwiającą wyznaczenie referencyjnego zużycia paliwa dla zarejestrowanych warunków eksploatacji. Warunki eksploatacji opisane są rozkładem energochłonności jednostkowej, która obejmuje zarówno wpływ warunków zewnętrznych jak również styl jazdy kierowcy. W pracy przedstawiono zestawienie wyników uzyskanych dla przejazdów wykonanych na terenie Gdańska, w regularnym ruchu miejskim. Przedstawiono także...

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• Modelling an accelerometer for robot position estimation

  Publikacja

  • Z. Kowalczuk
  • T. Merta

  - Rok 2014

  The article describes a new model of a MEMS accelerometer for usage in inertial measurement units (IMU). Such units allow to measure orientation and location of the sensor/system and therefore can be applied for systems positioning. The main purpose of the paper is to model pertinent accelerometer functions substantial in determination of the location of the sensor by means of double integration of acceleration. The model takes...

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• Matrix Strengthening the Identification of Observations with Split Functional Models in the Squared Msplit(q) Estimation Process

  Publikacja

  • M. Zienkiewicz
  • P. S. Dąbrowski

  - MEASUREMENT - Rok 2023

  This article addresses the issue of raising the level of identification of observations with either single or more split functional models in the squared Msplit(q) estimation process. The theoretical part of the study presents the theoretical grounds for the classical method for estimating parameters in a split functional model and proposes a modification of the computational algorithm to increase the quality of the determinations...

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• Blood Pressure Estimation Based on Blood Flow, ECG and Respiratory Signals Using Recurrent Neural Networks

  Publikacja

  • A. Poliński
  • K. Czuszyński
  • T. Kocejko

  - Rok 2018

  The estimation of systolic and diastolic blood pressure using artificial neural network is considered in the paper. The blood pressure values are estimated using pulse arrival time, and additionally RR intervals of ECG signal together with respiration signal. A single layer recurrent neural network with hyperbolic tangent activation function was used. The average blood pressure estimation error for the data obtained from 21 subjects...

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• High Efficiency Dual-Active-Bridge Converter with Triple-Phase-Shift Control for Battery Charger of Electric Vehicles

  Publikacja

  • S. Kuo
  • H. Chiu
  • C. Chiang
  • T. Huang
  • Y. Chang
  • S. Bachman
  • S. Piasecki
  • M. Jasiński
  • M. Turzyński

  - ENERGIES - Rok 2024

  An optimal modulation scheme with triple-phase-shift (TPS) control could increase the efficiency in the entire load range for a dual-active-bridge (DAB) converter under wide output voltage range conditions. Therefore, this study proposes a convergent approach to TPS mode selection, coupled with an optimal modulation scheme, ensuring the circuit’s efficiency over the entire range in the realm of a high-power and high-efficiency...

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• Risk of Cost Overruns in Implementation of Building Investment in Urban Conditions in the Aspect of Historical Background of its Location

  Publikacja

  • M. Apollo
  • B. Grzyl
  • J. Paweł

  - IOP Conference Series: Materials Science and Engineering - Rok 2019

  The article is a continuation of the authors' analyzes on the risk of delays in implementation of building investment in urban conditions in the aspect of historical background of its location. In case of construction investment located in the historic part of the city, the possible accumulation of many unfavourable factors, which in course of its implementation, may constitute a serious source of cost overruns and disruptions,...

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• Botanical and geographical origin characterization of polish honeys by headspace SPME-GCxGC-TOFMS

  Publikacja

  • T. Dymerski
  • T. Chmiel
  • A. Mostafa
  • M. Śliwińska
  • P. Wiśniewska
  • W. Wardencki
  • J. Namieśnik
  • T. Gorecki

  - CURRENT ORGANIC CHEMISTRY - Rok 2013

  Volatile organic compounds (VOCs) composition of Polish honeys obtained from various geographical regions was studied. Headspace solid phase microextraction (HS-SPME) using Divinylbenzene/Carboxen/Polydimethylsiloxane-coated fibers was used in combination with comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC× GC-TOFMS) because of the complexity of the samples. Acacia, linden, rapeseed, buckwheat...

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• Anti-crisis activities and export performance in the Covid-19 pandemic: The case of Polish exporters

  Publikacja

  • N. Daszkiewicz
  • A. Kordalska
  • M. Olczyk

  - Entrepreneurial Business and Economics Review - Rok 2023

  The article aims to investigate the impact of anti-crisis activities undertaken by the Polish exporting firms on their export sales during the Covid-19 pandemic. We used a quantitative research design. We conducted the survey on the sample of 161 manufacturing Polish exporting firms between April 21 and June 25, 2021. To verify the assumed relationships, we used the probit regression model. The main novelty is a firm-level analysis...

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• Present state of sewage and wastewater treatment plants in the polish coast of Baltic Sea

  Publikacja

  • K. Olańczuk-Neyman
  • B. Quant
  • K. Czerwionka
  • A. Remiszewska-Skwarek

  - Rok 2006

  In the paper the state of art of wastewater management in four zones of Polish Baltic Sea coast: the Vistula Lagoon, the Bay of Gdansk and Bay of Puck, the open sea zone and the Szczecin Lagoon, is discussed. Hydrological characteristics of these four zones as well as characteristics and operation effectiveness of wastewater treatment plants (WWTPs) located there, are presented.

• Modeling of traffic safety indictors on Polish national road network

  Publikacja

  • W. Kustra
  • M. Budzyński
  • K. Jamroz
  • J. Żukowska

  - Rok 2015

  Although decreased from 2001 to 2013, Poland’s road deaths improved at a slower rate than the rest of the EU, leaving Poland as one of the worst road safety performing countries in the EU. The national road network in Poland, despite the dynamic transformation and development, still does not conform to the EU safety standards. Similar situation exists in other EU countries, particularly those in Central and Eastern Europe. Safety...

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• DMI measurements impact on a position estimation with lack of GNSS signals during Mobile Mapping

  Publikacja

  • K. Bobkowska
  • G. Nykiel
  • P. Tysiąc

  - Journal of Physics : Conference Series - Rok 2017

  Nowadays, Mobile Laser Scanning is common in use in addition to geodesy measurements. The data which are provided by the system characterizes with high precision and flexibility. To precise mapping, the accuracy of the data should be maintained. In Poland, according to the minister’s dispositions, the accuracy of the data should not exceeded 10 cm. With fully operated system it is easy to uphold, but there is a situation when a...

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• An evaluation and explanation of (in)efficiency in higher education institutions in Europe and the U.S. with the application of two-stage semi-parametric DEA

  Publikacja

  • J. Wolszczak-Derlacz

  - RESEARCH POLICY - Rok 2017

  In this study the technical efficiency of number of public European and American HEIs is assessed over a decade. Efficiency scores are determined using nonparametric DEA with different input-output sets and considering different frontiers: global frontier (all HEIs pooled together), regional frontier (Europe and the U.S. having their own frontiers) and country-specific ones. The external factors affecting the degree of HEI inefficiency...

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• Striving for spatial energy efficiency in dwelling complexes. Kształtowanie przestrzennej efektywności energetycznej w zespołach zabudowy mieszkaniowej.

  Publikacja

  • J. Kurek
  • J. Martyniuk-Pęczek

  - Środowisko Mieszkaniowe - Rok 2019

  The main aim of this article was to discover the key characteristics in shaping most rewarded eco- district complexes built respectively in temperate climate zone in respect to spatial energy efficiency and resilience principles. It was done through careful case studies, comparative analysis and juxtaposition of critical parameters related to spatial energy efficiency and resilience in chosen representative dwelling complexes....

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• The potential of imogolite nanotubes as (co-)photocatalysts: a linear-scaling density functional theory study

  Publikacja

  • E. Poli
  • J. Elliott
  • L. Ratcliff
  • L. Andrinopoulos
  • J. Dziedzic
  • N. Hine
  • A. Mostofi
  • C. Skylaris
  • P. Haynes
  • G. Teobaldi

  - JOURNAL OF PHYSICS-CONDENSED MATTER - Rok 2016

  We report a linear-scaling density functional theory (DFT) study of the structure, wall-polarization absolute band-alignment and optical absorption of several, recently synthesized, open-ended imogolite (Imo) nanotubes (NTs), namely single-walled (SW) aluminosilicate (AlSi), SW aluminogermanate (AlGe), SW methylated aluminosilicate (AlSi-Me), and double-walled (DW) AlGe NTs. Simulations with three different semi-local and dispersion-corrected...

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• Exposure scenario and risk assessment of infants and newborns to bisphenols and their derivatives from diapers

  Publikacja

  • A. Bałdowska
  • N. Jatkowska
  • P. Kubica
  • J. Płotka-Wasylka

  - ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY - Rok 2023

  Newborns and infants are more sensitive to harmful compounds such as bisphenols and their derivatives because of their not fully developed detoxification mechanism. Exposure to these substances can lead to developmental problems and health consequences in adulthood. Since disposable baby diapers are used from the first days of life and remain in contact with the baby skin, it seems important to monitor the levels of endocrine disrupting chemicals...

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• Evaluating the risk of endometriosis based on patients’ self-assessment questionnaires

  Publikacja

  • K. Zieliński
  • D. Drabczyk
  • M. Kunicki
  • D. Drzyzga
  • A. Kloska
  • J. Rumiński

  - Reproductive Biology and Endocrinology - Rok 2023

  Background Endometriosis is a condition that significantly affects the quality of life of about 10 % of reproductive-aged women. It is characterized by the presence of tissue similar to the uterine lining (endometrium) outside the uterus, which can lead lead scarring, adhesions, pain, and fertility issues. While numerous factors associated with endometriosis are documented, a wide range of symptoms may still be undiscovered. Methods In...

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• Nonlinear FEM 2D failure onset prediction of composite shells based on 6-parameter shell theory

  Publikacja

  • J. Chróścielewski
  • A. Sabik
  • B. Sobczyk
  • W. Witkowski

  - THIN-WALLED STRUCTURES - Rok 2016

  Within the framework of the nonlinear 6-parameter shell theory with the drilling rotation and asymmetric stress measures, the modifications of Tsai-Wu and Hashin laminate failure initiation criteria are proposed. These improvements enable to perform first ply failure estimations taking into account the non-symmetric stress measures. In order to check the validity of the proposed criteria, finite element analyses are performed with...

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• Numerical Analysis of Impact of Energy Buoy Anchoring Configurations on its Motion and Efficiency

  Publikacja

  • P. Dymarski
  • C. Dymarski

  - Rok 2013

  This paper presents a numerical analysis of the impact of energy buoy mooring configurations on its movement on the wave and effectiveness. The method used to analyse the buoy movement modelling in six degrees of freedom was described in a paper presented at the Conference 2011. Simulations of the buoy movement in regular wave and power calculations were conducted for several configurations of anchoring systems and position of...

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• Risk factors for serious morbidity, prolonged length of stay and hospital readmission after laparoscopic appendectomy - results from Pol-LA (Polish Laparoscopic Appendectomy) multicenter large cohort study

  Publikacja

  • M. Walędziak
  • A. Lasek
  • M. Wysocki
  • M. Su
  • M. Bobowicz
  • P. Myśliwiec
  • K. Astapczyk
  • M. Burdzel
  • K. Chruściel
  • R. Cygan... i 38 innych

  - Scientific Reports - Rok 2019

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• Cycling as a Sustainable Transport Alternative in Polish Cittaslow Towns

  Publikacja

  • A. Jaszczak
  • A. Morawiak
  • J. Żukowska

  - Sustainability - Rok 2020

  It is well known that growing motor traffic in urban areas causes air pollution and noise which affects the environment and public health. It is hardly surprising then that cycling should be used as an alternative mode of transport, not just in major cities but also in smaller ones including those that are members of the Cittaslow network. Their approach is based on sustainable development, care for the environment and transport...

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• Improved RSS-Based DoA Estimation Accuracy in Low-Profile ESPAR Antenna Using SVM Approach

  Publikacja

  • M. Tarkowski
  • M. Burtowy
  • M. Rzymowski
  • K. Nyka
  • M. Groth
  • Ł. Kulas

  - Rok 2019

  In this paper, we have shown how the overall performance of direction-of-arrival (DoA) estimation using lowprofile electronically steerable parasitic array radiator (ESPAR) antenna, which has been proposed for Internet of Things (IoT) applications, can significantly be improved when support vector machine (SVM) approach is applied. Because the SVM-based DoA estimation method used herein relies solely on received signal strength...

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• Polish Suburban Landscape made of Enterpereneurial Tissue

  Publikacja

  • J. Martyniuk-Pęczek
  • O. Martyniuk-Kwiatkowska

  - Rok 2013

  Dwa ostatnie dekady w Polsce to okres ekspansywny rozwój małych przedsiębiorstw i równolegle dynamiczne przekształcenia przestrzeni wokół miasta . Rozwój tych dwóch zjawisk nastąpiło w okresie transformacji gospodarczej po 1989 roku . Głównym celem pracy jest zbadanie poziomu interakcji między procesem suburbanizacji i rozwojem sektora MSP w wybranych podmiejskich obszary, na przykładzie Metropolii Trójmiejskiej.

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• APPLICATION OF THE THEORY OF SEMI-MARKOV PROCESSES TO DETERMINE A LIMITING DISTRIBUTION OF THE PROCESS OF CHANGES OF ABILITY AND INABILITY STATES OF FUEL SUPPLY SYSTEMS IN HEAVY FUEL DIESEL ENGINES

  Publikacja

  • J. Girtler

  - Journal of Polish CIMEEAC - Rok 2013

  The paper presents applicability of the theory of semi-Markov processes to determine a limiting distribution of the process of changes of technical states of fuel systems for marine engines running on heavy fuel oils. The proposed study of this process includes the components of such fuel systems like: 1 - injectors, 2 - high pressure hoses, 3 - injection pumps, 4 - low pressure hoses, 5 – fine filters, 6 - coarse filters, 7 – fuel-feed...

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• Robust Parameter Estimation and Output Prediction for Reactive Carrier-Load Nonlinear Dynamic Networks

  Publikacja

  • M. Brdyś
  • T. Zubowicz
  • K. Armiński

  - Rok 2013

  In this paper an extension of on-line model simplification technique for a class of networked systems, namely reactive carrier-load nonlinear dynamic networked system (RCLNDNS), kept within point-parametric model (PPM) framework is addressed. The PPM is utilised to acquire a piece wise constant time-varying parameter linear structure for the RCLNDNS suitable for the on-line one step ahead prediction that may be applied to monitoring...

• Differential Quadrature Method for Dynamic Buckling of Graphene Sheet Coupled by a Viscoelastic Medium Using Neperian Frequency Based on Nonlocal Elasticity Theory

  Publikacja

  • M. Malikan
  • M. Sadraee Far

  - Journal of Applied and Computational Mechanics - Rok 2018

  In the present study, the dynamic buckling of the graphene sheet coupled by a viscoelastic matrix was studied. In light of the simplicity of Eringen's non-local continuum theory to considering the nanoscale influences, this theory was employed. Equations of motion and boundary conditions were obtained using Mindlin plate theory by taking nonlinear strains of von Kármán and Hamilton's principle into account. On the other hand, a...

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• Comments on ''Incremental construction and maintenance of minimal finite-state automata'' by Rafael C. Carrasco and Mikel L. Forcada.

  Publikacja

  • J. Daciuk

  - Rok 2004

  W opublikowanym niedawno artykule (czerwiec 2002) Rafael Carrasco i Mikel Forcada przedstawili dwa algorytmy: jeden dotyczący przyrostowego dodawania łańcuchów znaków do języka minimalnego, deterministycznego, cyklicznego automatu skończonego, drugi dotyczący przyrostowego usuwania łańcuchów znaków z automatu. Pierwszy algorytm jest uogólnieniem ,,algorytmu dla danych nieuporządkowanych'' - drugiego z dwóch przyrostowych algorytmów...

• Efficiency and proportions of waste tyre pyrolysis products depending on the reactor type—A review

  Publikacja

  • W. Lewandowski
  • K. Januszewicz
  • W. Kosakowski

  - JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS - Rok 2019

  This article discusses the current use of different pyrolytic reactors, their constructions and operating principles regarding the yields of main products of waste tyre pyrolytic recycling. Whether one makes a larger or smaller profit, or even a loss due to a surcharge being levied on waste tyre recycling, depends on the sale of the pyrolysis products (gas, char, oil), the proportions and market prices of which differ. The cheapest...

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