Search results for: SNNM EMPIRICAL METHOD

• A semi-empirical method for calculation of heat transfer coefficient in flow boiling for conventional tubes and minichannels

  Publication

  • D. Mikielewicz
  • J. Mikielewicz
  • J. Białas

  - Year 2005

  W pracy przedstawiono zagadnienia któe należy uwzględnić podczas modelowania wymiany ciepła z wrzeniem w przepływie w kanałach o małej średnicy. Uzyskano dobrą zgodność z wynikami badań eksperymentalnych.

• A semi-empirical method for calculation of heat transfer coefficient in flow boiling for conventional tubes and minichannels

  Publication

  • D. Mikielewicz
  • J. Mikielewicz
  • J. Białas-Tesmar

  - Archives of Thermodynamics - Year 2006

  W pracy przedstawiono zagadnienia które należy uwzględnić podczas modelowania wymiany ciepła z wrzeniem w przepływie w kanałach o małej średnicy. Uzyskano dobrą zgodność z wynikami badań eksperymentalnych.

• Quality of Life Surveys as a Method of Obtaining Data for Sustainable City Development—Results of Empirical Research

  Publication

  • M. Ligarski
  • M. Wolny

  - ENERGIES - Year 2021

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• A semi-empirical method for calculation of flow boiling heat transfer coefficients for conventional channels and small diameter tubes

  Publication

  • D. Mikielewicz
  • J. Mikielewicz
  • J. Białas-Tesmar
  • M. Klugmann

  - Year 2006

  W pracy przedstawiono rozważania na temat modelowania dwufazowego przepływu wrzącego w kanałach konwencjonalnych i w kanałach o małej średnicy. Przedstawiono modyfikację korelacji zaproponowanej wcześniej przez J. Mikielewicza na podstawie nowych danych eksperymentalnych, uzyskanych dla kanałów o małej średnicy. Bank danych obejmował ponad 460 punktów pomiarowych dla czynników R141b, R134a, R113, R123, R12, R11 i wody. Uzyskano...

• Improved semi-empirical method for determination of heat transfer coefficient in flow boiling in conventional and small diameter tubes

  Publication

  • D. Mikielewicz
  • J. Mikielewicz
  • J. Białas-Tesmar

  - INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER - Year 2007

  Praca dotyczy przedstawienia poprawionego modelu umożliwiającego wyznaczanie współczynnika przejmowania ciepła w kanałach o małych średnicach jaj i tych tradycyjnych. Model zweryfikowano na 6 czynnikach chłodnuiczych uzyskując bardzo zadowalającą zgodność.

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• Validation study on a new semi-empirical method for the prediction of added resistance in waves of arbitrary heading in analyzing ship speed trial results

  Publication

  • J. Wang
  • S. Bielicki
  • F. Kluwe
  • H. Orihara
  • G. Xin
  • K. Kume
  • S. Oh
  • S. Liu
  • P. Feng

  - OCEAN ENGINEERING - Year 2021

  This paper describes an open and extensive validation study carried out by the Specialist Committee on Ships in Operation at Sea (SOS) of the International Towing Tank Conference (ITTC) on the newly developed SHOPERA-NTUA-NTU-MARIC (SNNM) wave-added resistance prediction method. The SNNM method aims at a simple, fast and transparent determination of the added resistance in regular waves of arbitrary encounter directions, even when...

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• Validation study on a new semi-empirical method for the prediction of added resistance in waves of arbitrary heading in analyzing ship speed trial results

  Publication

  • J. Wang
  • S. Bielicki
  • F. Kluwe
  • H. Orihara
  • G. Xin
  • K. Kume
  • S. Oh
  • S. Liu
  • P. Feng

  - Ocean Engineering - Year 2021

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• An empirical study on the impact of AspectJ on software evolvability

  Publication

  • A. Przybyłek

  - EMPIRICAL SOFTWARE ENGINEERING - Year 2018

  Since its inception in 1996, aspect-oriented programming (AOP) has been believed to reduce the effort required to maintain software systems by replacing cross-cutting code with aspects. However, little convincing empirical evidence exists to support this claim, while several studies suggest that AOP brings new obstacles to maintainability. This paper discusses two experiments conducted to evaluate the impact of AspectJ (the most...

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• Psychological inspirations in empirical software engineering.

  Publication

  • A. Bobkowska

  - Year 2004

  Software development is people-intensive activity. Incorporation of human factors in empirical studies of software engineering can bring many benefits for both researchers and practitioners. Psychological inspirations can facilitate this task. In this paper, such incorporation is presented in the contexts of the objectives and problems in empirical studies, applicability of the results in the business context of software enterprise,...

• Empirical analyses of robustness of the square Msplit estimation

  Publication

  • Z. Wiśniewski
  • M. Zienkiewicz

  - Journal of Applied Geodesy - Year 2021

  The paper presents Msplit estimation as an alternative to methods in the class of robust M-estimation. The analysis conducted showed that Msplit estimation is highly efficient in the identification of observations encumbered by gross errors, especially those of small or moderate values. The classical methods of robust estimation provide then unsatisfactory results. Msplit estimation also shows high robustness to single gross errors...

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• Analiza i ocena poprawności działania węzła tarcia w aspekcie II zasady termodynamiki

  Publication

  • P. Bzura

  - Scientific Journal of Gdynia Maritime University - Year 2018

  W artykule przedstawiono autorską metodę sprawdzania poprawności działania węzła tarcia traktowanego jako układ tribologiczny w aspekcie II zasady termo-dynamiki na podstawie analizy i oceny wyników badań laboratoryjnych wykonanych na stanowisku badawczym. Jako stanowisko wykorzystany został zmodyfikowany węzeł tarcia aparatu czterokulowego T-02. Zaprezentowano algorytm, według którego zostały wykonane badania empiryczne. Wykazano,...

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• Finite Element Method

  e-Learning Courses

  • B. Sobczyk
  • M. Malikan

  Item Name : Finite Element Method- Abaqus learning Field of study : Civil Engineering Faculty : Faculty of Civil and Environmental Engineering Education level : Second degree studies Form of studies : Full-time studies Year of studies : 1 Study semester : 2 Start of the semester : November 2021 Academic year of the course : 2021/2022 Form of classes : Lecture, Laboratory

• ZMIANY STRUKTURY DEMOGRAFICZNEJ LUDNOŚCI – WYZWANIA DLA RYNKU PRACY

  Publication

  • M. Gawrycka
  • A. Szymczak

  - Year 2014

  Polska, podobnie jak i inne kraje europejskie doświadcza w przyspieszonym tempie zmian demograficznych, które w krajach o rozwiniętych gospodarkach rynkowych rozpoczęły się w latach 60. XX wieku. Procesy nieodwracalne, związane ze starzeniem się społeczeństwa na początku zaobserwowano w Skandynawii, następnie proces ten objął kraje Europy Zachodniej, Europy Południowej, w latach 90. XX wieku – również Europę Środkową i Wschodnią....

• An Empirical Propagation Model for Corridors in Office Buildings

  Publication

  • P. T. Kosz

  - International Journal of Electronics and Telecommunications - Year 2017

  This paper presents an empirical propagation path loss model for corridors in office buildings. The proposed model estimates changeable character of radio signal attenuation, based on a special approach as a combination of the simple free-space model with the author’s model. The measurement stand and measurement scenario are described. The propagation path loss research have been made in corridor for different frequencies in range...

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• Empirical research on household economic behaviour and well-being (MK_AGIIA_B16)

  e-Learning Courses

  • P. Paradowski

  Empirical research on household economic behaviour and well-being" - Analityka gospodarcza (studia w jęz. angielskim) (WZiE), II stopnia, stacjonarne, 2020/2021 - zimowy , LAB

• Hydrauliczna wiarygodność wyników pomiarów terenowych stosowanych do identyfikacji oporności hydraulicznej przewymiarowanych sieci wodociągowych

  Publication

  • M. Kulbik

  - Instal - Year 2013

  Publikacja zawiera zalecenia metodyczne dotyczące identyfikacji oporności hydraulicznej w przewymiarowanych sieciach wodociągowych na tle spotykanych nieprawidłowości. Krytycznie oceniono wyniki pomiarów terenowych, które zastosowano do tarowania komputerowych modeli przepływów (KMP) pomimo, że nie spełniały kryterium hydraulicznej wiarygodności. Ponadto zaproponowano spadek hydrauliczny jako obiektywny wskaźnik wiarygodności pomiarów,...

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• Empirical Propagation Model for the Container Terminal Environment

  Publication

  • S. J. Ambroziak
  • R. Katulski

  - Year 2013

  In the paper the empirical propagation model for mobile radio links in a container terminal environment is presented and the investigated environment Deepwater Container Terminal in Gdansk, Poland) is characterized. Described empirical model was elaborated on the basis of almost 290 thousand propagation path measurements in real conditions. The diversity of conditions occurring in different places of the container terminal has...

• ZMIANY METODOLOGICZNE W RACHUNKACH NARODOWYCH I ICH WPŁYW NA WYBRANE MIARY KONKURENCYJNOŚCI

  Publication

  • M. Gawrycka
  • A. Szymczak

  - Year 2015

  Konkurencyjność uznawana jest za jeden z ważniejszych elementów globalnego życia społeczno-ekonomicznego. W skali makro konkurencyjność danej gospodarki jest utożsamiana z jej zdolnością do tworzenia w długim okresie większego bogactwa w stosunku do innych gospodarek narodowych oraz zdolności do budowania przewagi konkurencyjnej na rynku. Celem niniejszego opracowania jest wskazanie wpływu zmian metodologicznych w rachunkach narodowych...

• Finite Element Method Applications - winter 2022/2023

  e-Learning Courses

  • W. Witkowski
  • A. Sabik
  • B. Sobczyk
  • S. Burzyński
  • Ł. Pyrzowski

  Finite Element Method Applications - summer 2022/2023 Seminar.

• Finite Element Method Applications - winter 2023/2024

  e-Learning Courses

  • W. Witkowski
  • A. Sabik
  • B. Sobczyk
  • Ł. Pyrzowski

  Finite Element Method Applications - winter 2022/2023 Seminar.

• Finite Element Method Applications - summer 2022/2023

  e-Learning Courses

  • W. Witkowski
  • A. Sabik
  • B. Sobczyk
  • S. Burzyński
  • Ł. Pyrzowski

  Finite Element Method Applications - summer 2022/2023 Seminar.

• Finite Element Method Applications 2023/2024 Summer

  e-Learning Courses

  • B. Sobczyk

  Finite Element Method Applications - summer semester 2023/2024 Seminar.

• Finite Element Method Applications 2024/2025 winter

  e-Learning Courses

  • B. Sobczyk

  Finite Element Method Applications - winter semester 2024/2025 Seminar.

• Empirical Economics

  Journals

  ISSN: 0377-7332 , eISSN: 1435-8921

• [ZiJ] Empirical research in Management

  e-Learning Courses

  • R. Jankowski
  • W. Kucharska

  Dyscyplina: nauki o zarządzaniu i jakości Zajęcia obowiązkowe dla doktorantów I i II roku Prowadzący:  dr inż. Wioleta Kucharska Liczba godzin: 30 Forma zajęć: laboratoria Discipline: management and quality Obligatory course for 1st and 2nd-year PhD students Academic teacher: dr inż. Wioleta Kucharska Total hours of training: 30 teaching hours Course type: laboratories

• [EiF] Empirical research in Economics

  e-Learning Courses

  • A. Parteka
  • J. Wolszczak-Derlacz

  {mlang pl} Dyscyplina: EiF Zajęcia obowiązkowe dla doktorantów I roku Prowadzący:  A. Parteka / J. Wolszczak - Derlacz,  F. Venturini Liczba godzin: 30 Forma zajęć: laboratoria {mlang} {mlang en} Discipline: EiF Obligatory course for 1st-year PhD students Academic teacher:  A. Parteka / J. Wolszczak - Derlacz,  F. Venturini Total hours of training: 30 teaching hours Course type: Laboratories  {mlang}    

• Determinants of export diversification: an empirical investigation

  Publication

  • A. Parteka
  • M. Tamberi

  - RED. ZAGR. ANGIELSKI - Year 2008

  Empirical findings confirm that relatively high specialisation of economic structures tends to be associated with low levels of income per capita, but countries diversify their export structures along their path of growth. However, usually only per capita income, and eventually, country-specific fixed effects are the sole explanatory variables taken into consideration in the estimation of specialisation curves. We extend the analysis...

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• Scientific Research Method

  e-Learning Courses

  • J. Szczepański

• Sustainable energy consumption – Empirical evidence of a household in Poland

  Publication

  • E. Sokołowska
  • J. Wiśniewski

  - Energy Strategy Reviews - Year 2024

  There is an expected increase in the demand for electricity from households in European countries. The outcome of the growing proportion of renewable energy sources in the energy supply mix should result in improved customer awareness regarding their electricity usage. Additionally, they must assume a more proactive role in overseeing their electricity usage. Innovation and pollution management have become crucial catalysts for...

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• An Empirical Model for the Polarisation Characteristics of Indoor Off-Body Channels

  Publication

  • K. Turbić
  • S. J. Ambroziak
  • L. M. Correia

  - Year 2017

  This paper presents an analysis of the polarisation characteristics for the channel in dynamic off-body communications, and an empirical channel model, based on measurements performed at 2.45 GHz in an office environment. Body presence and propagation conditions have a strong influence on signal depolarisation. The model assumes three components for the total path loss: mean path loss, represented by a log-distance function with...

• Physics Research Method IV

  e-Learning Courses

  • J. Guthmuller

  {mlang pl} Dyscyplina:  Nauki Fizyczne Zajęcia obowiązkowe dla doktorantów II roku Prowadzący:   prof. Julien Guthmuller Liczba godzin: 15 h Forma zajęć: wykład/seminarium {mlang} {mlang en} Discipline: Phisical Sciences Obligatory course for 2nd year PhD students Academic teacher:  prof. Julien Guthmuller Total hours of training: 15 teaching hours Course type: lecture/seminar {mlang}

• An Empirical Propagation Model for Mobile Radio Links in Container Terminal Environment

  Publication

  • S. J. Ambroziak
  • R. Katulski

  - IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY - Year 2013

  In this paper, a novel empirical propagation model for mobile radio links in a container terminal environment is presented. Measurement propagation research carried out in the Deepwater Container Terminal (DCT) in Gdańsk, Poland is described, and the investigated environment is characterized. The results of the statistical evaluation of the new model are discussed. In addition, statistical tuning of the Walfisch–Ikegami model for...

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• Empirical investigation on labour market interactions in an enlarged Europe

  Publication

  • A. Lo Turco
  • A. Parteka

  - Bank i Kredyt - Year 2009

  This paper proposes an empirical assessment of economic interactions between the labour markets ofthe integrating EU over the period of time 1995-2005. Drawing on recently made available industrystatistics, we provide a sector level study (13 tradable sectors, including manufacturing and services),analysing the contemporary evolution of domestic and trade partners' employment levels. Given theintensification of trade relations...

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• Method and Theory in the Study of Religion

  Journals

  ISSN: 0943-3058 , eISSN: 1570-0682

• JOURNAL OF ARCHAEOLOGICAL METHOD AND THEORY

  Journals

  ISSN: 1072-5369 , eISSN: 1573-7764

• Impact of Work from Home on Agile Software Project Execution – the Empirical Study

  Publication

  • J. J. Chabik

  - Year 2024

  Background: The outbreak of a Covid-19 pandemic changed the working patterns of software projects delivery. Aim: The study examines how the work from home (WFH) impacted the software project execution for emergence of differentiating patterns. Method: The data on project execution in two country locations was examined. The population is 3711 projects across 52 months (26 pre- and 26 post-pandemic) is analyzed. The paper identifies the...

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• An Empirical Study on the Impact of Gender on Mobile Applications Usability

  Publication

  • P. Weichbroth

  - IEEE Access - Year 2022

  In the area of broadband wireless Internet, mobile applications have already replaced their desktop equivalents and are recognized as valuable tools for any size of businesses and for private use. With the emergence of millions of apps, the quality of their interaction with the user remains an open question for software vendors. While female and male requirements and preferences are not always similar, to the best of our knowledge,...

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• Journal of Empirical Theology

  Journals

  ISSN: 0922-2936 , eISSN: 1570-9256

• Empirical Studies of the Arts

  Journals

  ISSN: 0276-2374 , eISSN: 1541-4493

• Empirical Musicology Review

  Journals

  ISSN: 1559-5749

• AJOB Empirical Bioethics

  Journals

  ISSN: 2329-4515

• Journal of Empirical Finance

  Journals

  ISSN: 0927-5398 , eISSN: 1879-1727

• Energy Efficiency and Economic Policy: Comprehensive Theoretical, Empirical, and Policy Review

  Publication

  • M. Mushafiq
  • M. M. K. Arisar
  • H. Tariq
  • S. Czapp

  - ENERGIES - Year 2023

  In this paper, we analyze the role of economic policy in prompting energy efficiency. This study reviews three aspects, theoretical, empirical, and existing policies to evaluate the relationship of energy efficiency and economic policy. This study furthermore identifies the existing issues from a policy perspective in energy efficiency. Although not all public policies may be justified, it suggests that these types of financial...

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• [EiF] Empirical research in economics 2023/2024

  e-Learning Courses

  • A. Parteka
  • J. Wolszczak-Derlacz

  {mlang pl} Dyscyplina:  Ekonomia i Finanse Zajęcia obowiązkowe dla doktorantów I roku Prowadzący:   dr hab. inż. Aleksandra Parteka, prof. PG, dr hab Joanna Wolszczak-Derlacz, prof PG prof. Francesco Venturini (Univ.Perugia) Liczba godzin: 30 h Forma zajęć: laboratoria {mlang} {mlang en} Discipline: Economics and Finance Obligatory course for 1st and 2nd year PhD students Academic teacher:  Aleksandra Parteka prof....

• Digital Gaps and Economic Inequalities in MENA Countries: An Empirical Investigation

  Publication

  • E. Lechman

  - Year 2022

  This research contributes to the present state of the art by examining changes in cross-country inequalities in digital technologies deployment and economic performance. Our empirical target builds on the hypothesis that rapid global diffusion of digital technologies unequivocally leads to gradual eradication of cross-country digital gaps and cross-country inequalities in terms of deployment of ICT; the technology convergence occurs....

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• The impact of institutions on innovation networks: empirical evidence from Poland

  Publication

  • P. Banasik
  • S. Morawska
  • M. Godlewska

  - Technological and Economic Development of Economy - Year 2022

  Innovation networks may accelerate and improve the innovation process, while institutional pathologies may hamper it. This study employs the Kruskal-Wallis H test and regression analysis to determine if the relationship between institutions and innovation networks does exist among the investigated variables. The purpose of the study was to find out whether cooperation with special local institutions influences the innovative behaviour...

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• Export Diversification and Development - Empirical Assessment

  Publication

  • A. Parteka
  • M. Tamberi

  - RED. ZAGR. ANGIELSKI - Year 2011

  This paper assesses the role played by country specific factors as determinants of exports' diversification process. Using a panel data-set for 60 countries and twenty years (1985-2004) we confirm that even after clearing out differences in income per capita, cross section variability in the degree of exports' diversification is significant. In general, apart from per capita income, variables influencing the size of accessible...

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• Empirical verification in industrial conditions of fracture mechanics models of cutting power prediction

  Publication

  • K. Orłowski
  • T. Ochrymiuk
  • M. Lackowski

  - Annals of WULS, Forestry and Wood Technology - Year 2014

  A comparison of experimental results obtained in the industrial conditions at a sawmill located in the Baltic Natural Forest Region (PL) and theoretical cutting power consumption forecasted with the models which include work of separation (fracture toughness) in addition to plasticity and friction has been described. In computations of cutting power consumption during rip sawing of Scots pine wood (Pinus sylvestris L.) values of...

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• Empirical Analysis of Forest Penalizing Attribute and Its Enhanced Variations for Android Malware Detection

  Publication

  • A. G. Akintola
  • A. O. Balogun
  • L. F. Capretz
  • H. A. Mojeed
  • S. Basri
  • S. A. Salihu
  • F. E. Usman-Hamza
  • P. O. Sadiku
  • G. B. Balogun
  • Z. O. Alanamu

  - Applied Sciences-Basel - Year 2022

  As a result of the rapid advancement of mobile and internet technology, a plethora of new mobile security risks has recently emerged. Many techniques have been developed to address the risks associated with Android malware. The most extensively used method for identifying Android malware is signature-based detection. The drawback of this method, however, is that it is unable to detect unknown malware. As a consequence of this problem,...

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• Empirical Relationship Describing Total Convective and Radiative Heat Loss in Buildings

  Publication

  • M. Ryms
  • G. J. Kwiatkowski
  • W. Lewandowski

  - International Journal of Heat and Technology - Year 2023

  On the basis of theoretical considerations of convective-radiative heat transfer, a relationship was developed enabling the total convective and radiative heat flux QC+R emitted from any object at tw and its surroundings at t∞ to be calculated from known values of the surface temperature of such an object, i.e., the known temperature difference Δt=tw - t∞ and average air temperature Tav. This relationship is applied to thermal...

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