Wyniki wyszukiwania dla: yerba mate

• Progress in the post weld residual stress evaluation using Barkhausen effect meter with a novel rotating magnetic field probe

  Publikacja

  • B. Augustyniak
  • L. Piotrowski
  • M. Chmielewski
  • W. Kiełczyński
  • K. Prokop-Strzelczyńska

  - Rok 2014

  We report the progress in post weld residual stress evaluation using Barkhausen effect (BE) meter with rotating magnetic field probe. The novel probe of the BE meter contains two C-core electromagnets and searching coil with ferrite antenna. This meter allows automatic measurements of BE intensity envelopes at different angles of magnetizing field. The full process of measurement at given position of the probe takes about only...

• High-quality academic teachers in business school. The case of The University of Gdańsk, Poland

  Publikacja

  • M. Wiśniewska
  • P. Grudowski

  - TOTAL QUALITY MANAGEMENT & BUSINESS EXCELLENCE - Rok 2016

  The Bologna process, the increasing number of higher education institutions, the mass education and the demographic problems make the quality of education and quality of the academic teachers a subject of wide public debate and concern. The aim of the paper is to identify the most preferred characteristics of a teacher working at a business school. The research problem was: What should a high-quality business school academic teacher...

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• Forecasting of retail prices of liquid fuels in Poland

  Publikacja

  • M. Surowiec
  • A. Sobiechowska-Ziegert

  - Catallaxy - Rok 2024

  Motivation: In recent years, the prices of liquid fuels in Poland have been rising , negatively affecting the country’s economy and the daily life of its inhabitants. Consequently, there is a need for effective forecasting of prices in fuel markets, as this could enable entrepreneurs and consumers to make more informed decisions. Aim: The objective of the article was to forecast the retail prices of EU95 petrol and diesel fuel...

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• Effect of copper and silver modification of NH2-MIL-125(Ti) on the photoreduction of carbon dioxide to formic acid over this framework under visible-light irradiation

  Publikacja

  • M. Baluk
  • A. Pieczyńska
  • P. Mazierski
  • M. Kroczewska-Gnatowska
  • K. Nikiforow
  • A. Mikolajczyk
  • J. Dołżonek
  • J. Łuczak
  • A. Zaleska-Medynska

  - APPLIED CATALYSIS B-ENVIRONMENTAL - Rok 2024

  Cu and Ag enhance the photocatalytic activities of metal–organic frameworks (MOFs) toward CO2 conversion because of their CO2 adsorption capacities and effects on the lowest unoccupied molecular orbital (LUMO) overpotentials of MOFs. However, to date, targeted introduction of metals into MOFs to achieve visible (Vis)- light-active photocatalysts for CO2 photoconversion has not been realized. Herein, a series of aminefunctionalized...

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• Broadening the scope of measurement and analysis of vibrations of an organ pipe employing intensity probe, simulations, and highspeed camera

  Publikacja

  • P. Bordoni
  • J. Kotus
  • P. Odya
  • F. Antonacci
  • B. Kostek

  - Journal of the Acoustical Society of America - Rok 2022

  This paper shows an integrated approach to measure, analyze, and model phenomena occurring in an organ pipe driven by pressurized air. The aim of this paper is two-fold, i.e., to measure the pressure signal and the intensity field around the mouth by means of an intensity probe and to visualize and observe the motion of the air jet, which represents the excitation mechanism of the system. This is realized through two techniques,...

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• Ensuring sustainable development of urban public transport: A case study of the trolleybus system in Gdynia and Sopot (Poland)

  Publikacja

  • M. Wołek
  • M. Wolański
  • M. Bartłomiejczyk
  • O. Wyszomirski
  • K. Grzelec
  • K. Hebel

  - JOURNAL OF CLEANER PRODUCTION - Rok 2021

  Electromobility is a vital tool in reducing the environmental impact of transportation. A technologically mature means of public transport is the trolleybus. Based on a case study of the Polish cities of Gdynia and Sopot, this paper explores the factors that influence the development of the trolleybus system. Recent developments of in-motion charging (IMC) technology are analysed what provides a new analytical framework for the...

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• Hydrodynamic Model of the New Waterway through the Vistula Spit

  Publikacja

  • M. Szydłowski
  • T. Kolerski

  - Polish Maritime Research - Rok 2020

  The decision to build a new waterway (strait) in the Polish part of the Vistula Spit was made in 2017. The new connection between the Gulf of Gdańsk and the Vistula Lagoon is planned as an artificial navigable channel with a lock and a small port. During storm surges and wind tides in the gulf or in the lagoon, sluicing will be re-quired for vessels to tackle the Vistula Spit. This procedure does not require significant water flow...

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• A Method for Underwater Wireless Data Transmission in a Hydroacoustic Channel under NLOS Conditions

  Publikacja

  • J. Mizeraczyk
  • R. Studanski,
  • A. Zak
  • A. Czapiewska

  - SENSORS - Rok 2021

  Wireless data transmission in the hydroacoustic channel under non-line-of-sight (NLOS) propagation conditions, for example, during a wreck penetration, is difficult to implement reliably. This is mostly due to the multipath propagation, which causes a reduction in the quality of data reception. Therefore, in this work an attempt has been made to develop a reliable method of wireless underwater communication test it under the NLOS...

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• Joanna Janczewska prof. dr hab.

  Osoby

  Zakład Układów Dynamicznych, Instytut Matematyki Stosowanej

  Joanna Janczewska odbyła studia wyższe magisterskie na kierunku Matematyka w latach 1994–1999 z wynikiem bardzo dobrym i uzyskała w 1999 roku tytuł magistra. W 2002 roku na Uniwersytecie Gdańskim uzyskała stopień naukowy doktora nauk matematycznych w zakresie matematyki. Promotorem w przewodzie doktorskim był dr hab. Andrzej Borysowicz, prof. UG. W październiku 2004 roku podjęła pracę na stanowisku adiunkta w Katedrze Algebry...

• Structure of the register of immovable monuments by date of individual objects – comparison of 2017 and 2024

  Dane Badawcze

  open access

  • M. Kuźma

  - seria: Analysis of the structure of the register of immovable monuments

  The register of monuments is the primary form of monument protection. The register for monuments in the voivodeship is kept by the voivodeship conservator of monuments in the form of separate books for immovable (book A), movable (book B), and archaeological (book C) monuments. Entries in the register of monuments are made upon application by the owner...

• Importance of Conjugation of the Bile Salt on the Mechanism of Lipolysis

  Publikacja

  • N. Łozińska
  • C. Jungnickel

  - MOLECULES - Rok 2021

  We aim to advance the discussion on the significance of the conjugation of bile salts (BS) in our organism. We hypothesize that conjugation influences the rate of lipolysis. Since the rate of lipolysis is a compound parameter, we compare the effect of conjugation on four surface parameters, which contribute to the rate. Since deconjugation is due to gut microbiota, we hypothesize that microbiota may affect the rate of lipolysis....

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• Charakterystyka procesu ciągłej dewulkanizacji termomechanicznej z zastosowaniem metod doświadczalnych

  Publikacja

  • K. Formela
  • A. Stasiek
  • M. Formela
  • J. T. Haponiuk
  • M. Bogucki

  - Przemysł Chemiczny - Rok 2013

  Badano proces termomechanicznej dewulkanizacji rozdrobnionych odpadów gumowych prowadzono przy użyciu wytłaczarki dwuślimakowej współbieżnej o specjalnej konfiguracji układu uplastyczniającej, umożliwiającego wywieranie znacznych sił ścinających na miał gumowy. W badaniach doświadczalnych zastosowano metodę powierzchni odpowiedzi RSM (response surface methodology). Wyznaczono modele matematyczne wyrażające zmienność właściwości...

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• Greening procedures and analytical parameters. The polychlorinated naphthalenes analysis in complex matrices as proof of concept

  Publikacja

  • N. Jatkowska
  • M. Marć
  • M. De la Guardia
  • D. Gallart Mateu
  • J. Płotka-Wasylka

  - TRAC-TRENDS IN ANALYTICAL CHEMISTRY - Rok 2023

  Due to the complexity of analytical procedures employed for the determination of wide spectrum of persistent organic pollutants (POPs), it is important to consider the green character of the applied protocols and propose the greenest solutions. In this review, the green aspects of several analytical procedures used for the determination of polychlorinated naphthalenes (PCNs) (as a representatives of POPs) in different types of...

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• Remote Estimation of Video-Based Vital Signs in Emotion Invocation Studies

  Publikacja

  • A. Kwaśniewska
  • M. Szankin
  • J. Rumiński
  • K. Czuszyński

  - Rok 2018

  Abstract— The goal of this study is to examine the influence of various imitated and video invoked emotions on the vital signs (respiratory and pulse rates). We also perform an analysis of the possibility to extract signals from sequences acquired with cost-effective cameras. The preliminary results show that the respiratory rate allows for better separation of some emotions than the pulse rate, yet this relation highly depends...

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• On Kinetic Nature of Hysteresis Phenomena in Stress-Induced Phase Transformations

  Publikacja

  • H. Altenbach
  • A. Belyaev
  • V. Eremeev
  • A. Krivtsov
  • A. Porubov

  - Rok 2019

  A simplest model is developed which demonstrates that hysteresis phenomena in stress-induced phase transformations may have a kinetic nature and follow from the discrepancy between strain rate and characteristic rate of the new phase growth.

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• Imaging of the effects of pitting corrosion with the use of AFM

  Dane Badawcze

  open access

  • A. Zieliński
  • J. Ryl

  - seria: Scanning Probe Microscopies data

  Pitting corrosion is a local attack on a metal surface, limited to a point or small area, which appears as a hole. Pitting corrosion is one of the most harmful forms of corrosion due to the fact that it is associated with small, difficult to detect damage, that can even lead to perforation of the structure. A single pit may range in size from micrometers...

• Mucinous carcinoma - Female, 69 - Tissue image [5040730020278321]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BREAST tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma - Female, 71 - Tissue image [3310730006495781]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Influence of grain shape on the mechanical behaviour of granular materials

  Publikacja

  • K. Szarf
  • G. Combe
  • P. Villard

  - Rok 2009

  We performed series of numerical vertical compression tests on assemblies of 2D granular material using a Discrete Element code and studied the results in regard to the grain shape. The samples consist of 5000 grains made either of 3 overlapping discs (clump - grain with concavities) or of six-edged polygons (convex grain). These two types of grains have a similar external envelope, ruled with a geometrical parameter α. In the...

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• Bile conjugation and its effect on in vitro lipolysis of emulsions

  Publikacja

  • N. Łozińska
  • J. Maldonado-Valderrama
  • T. Del Castillo Santaella
  • Y. Zhou
  • D. Martysiak-Żurowska
  • Y. Lu
  • C. Jungnickel

  - FOOD RESEARCH INTERNATIONAL - Rok 2024

  Bile Salts (BS) are responsible for stimulating lipid digestion in our organism. Gut microbiota are responsible for the deconjugation process of primary conjugated to secondary unconjugated BS. We use two structurally distinct BS and characterize the rate of lipolysis as a compound parameter. A static in-vitro digestion model as well as meta-analysis of literature data has been performed to determine the most influential factors...

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• Sabina Szymczak dr inż.

  Osoby

  Katedra Statystyki i Ekonometrii

  Sabina Szymczak jest adiunktem badawczo-dydaktycznym w Katedrze Statystyki i Ekonometrii. Stopień doktora w dyscyplinie Ekonomia uzyskała na Wydziale Zarządzania i Ekonomii Politechniki Gdańskiej. Ukończyła studia magisterskie na kierunku Matematyka oraz inżynierskie na kierunku Fizyka Techniczna (spec. Informatyka Stosowana) na Politechnice Gdańskiej. Jej zainteresowania naukowe dotyczą globalnych łańcuchów wartości (GVC), a w...

• Właściwości stali S460M napawanej pod wodą metodą lokalnej komory suchej

  Publikacja

  • G. Rogalski
  • D. Fydrych
  • J. Łabanowski

  - Przegląd Spawalnictwa - Rok 2017

  W artykule przedstawiono wyniki badań próbek ze stali S460M wykonanych pod wodą metodą lokalnej komory suchej. Pomiary twardości oraz analiza strukturalna wykazały, że dla określonych ilości wprowadzonego ciepła możliwe jest wykonanie złączy bez niezgodności spawalniczych. Stwierdzono formowanie się w pewnych warunkach pęknięć zimnych w SWC wywołanych procesami odprowadzania ciepła z materiału, które są charakterystyczne dla spawania...

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• Technology of an adhesive silicone film as drug carrier in transdermal therapy I. Analytical methods used for characterization and design of the universal elastomer layers

  Publikacja

  • M. Jamrógiewicz

  - JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS - Rok 2011

  Silicone polymers possess unique properties, which make them suitable for many different applications, for example in the pharmaceutical and medical industry. To create an adhesive silicone film, the appropriate silicone components have to be chosen first. From these components two layers were made: an adhesive elastomer applied on the skin, and a non-adhesive elastomer on the other side of the film. The aim of this study was...

• Operation of multistage constructed wetlands systems in temporary climate

  Publikacja

  • H. Obarska-Pempkowiak
  • M. Gajewska

  - Rok 2005

  The investigation were carried out at two different hybrid constructed wetlands, which treated municipal sewage after mechanical treatment from small villages in Pomeranian Region. In all facilities first step of biological treatment were horizontal flow beds. The main difference concern configuration of the facilities and sewage distributions systems into vertical flow beds. The measurement period was divided into vegetation...

• Analysis of the Surface Stereometry of Alloyed Austenitic Steel after Fibre Laser Cutting using Confocal Microscopy

  Publikacja

  • S. Krajewski
  • D. Grochała
  • J. Tomków
  • R. Grzejda

  - Coatings - Rok 2023

  The paper extends the concept of cut edge quality and examines the fibre laser cutting process. A Prima Power Platino Fiber Evo device with a reference speed (RS) of 3500 mm/min was used for laser cutting. In order to analyse the influence of the laser cutting speed on the cut edge quality of X5CrNi18-10 stainless steel sheets, macroscopic studies were conducted on a stereoscopic microscope and surface stereometry on a confocal...

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• Dependence of Housing Real Estate Prices on Inflation as One of the Most Important Factors: Poland’s Case

  Publikacja

  • O. Melnychenko
  • T. Osadcha
  • A. Kovalyov
  • V. Matskul

  - Real Estate Management and Valuation - Rok 2022

  The study aimed to examine the impact of inflation on the real estate market using Polish panel data for the last 13 years. It is based on a panel model, where price changes of one square meter of housing are determined as a function in changes of inflation, the central bank's base rate, dwellings built, as well as new mortgage loans. The quarterly dynamics of the average price of 1 square meter of housing in...

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• Impact of Climate Change on Groundwater Resources in a Young Glacial Multi-Aquifer System

  Publikacja

  • B. Jaworska-Szulc

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Rok 2015

  The aim of this study was to evaluate the trends of climate change on the Kashubian Lake District and to determine the impact of expected trends on groundwater resources. The analysis of trends in temperature and precipitation was conducted for the six-decade history of meteorological measurements at the weather station in Koscierzyna. The analysis shows the trend of temperature increase of +0.0182ºC/year. The highest increase...

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• Effect of water salinity on properties of multipass underwater wet manual metal arc welded joints

  Publikacja

  • J. Tomków
  • D. Fydrych
  • J. Łabanowski

  - Welding in the World - Rok 2023

  The weldability of steel under the water is limited due to the influence of the environment. Water causes limited visibility, presence of the residual stresses, increasing the cooling rate, and increasing the diffusible hydrogen content in deposited metal, leading to the formation of brittle microstructures in heat-affected zone (HAZ). The paper presents the results of mechanical properties testing of S420G2+M steel welded joints...

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• Biopolymer based nanomaterials in drug delivery systems: A review

  Publikacja

  • J. Jacob
  • J. T. Haponiuk
  • S. Thomas
  • S. Gopi

  - Materials Today - Rok 2018

  Drug delivery systems (DDS) are used to achieve a higher therapeutic effects of a pharmaceutical drug or natural compound in a specific diseased site with minimal toxicological effect and these systems consists of liposomes, microspheres, gels, prodrugs and many. Nanotechnology is a rapidly developing multi-disciplinary science that ensures the fabrication of the polymers to nanometer scale for various medical applications. Uses...

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• A unified approach to the analysis of electric energy and fuel consumption of cars in city traffic

  Publikacja

  • J. Kropiwnicki

  - ENERGY - Rok 2019

  Forecasting fuel and electricity consumption is an important factor determining the direction of changes in road engineering solutions, traffic management, selection of routes for public transport and development more efficient car drive systems. With a reliable and easy-to-use computational tool, it is possible to reduce the consumption of primary energy sources and reduce the emission of toxic compounds in cities. An analysis...

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• Influence of the fragment size on the recycling process of thin-film modules based on CdTe

  Publikacja

  • A. Kuczyńska-Łażewska
  • E. Klugmann-Radziemska

  - Journal of International Scientific Publications - Rok 2021

  For several years, the production of second generation cells (the so-called thin film), produced from amorphous silicon, cadmium telluride (CdTe) or copper indium (gallium) diselenide (CI(G)S), has been increasing. The total number of end-of-life panels by 2050 is expected to reach 9.57 million tonnes. They contain heavy metals that can be leached into the environment at the land field. The EU directive on waste electrical and...

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• Analysis of loading history influence on fatigue and fracture surface parameters using the method of induction trees

  Publikacja

  • A. Deptuła
  • W. Macek
  • M. Partyka

  - MATEC Web of Conferences - Rok 2019

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• The evaluation of the surface quality after laser cutting

  Publikacja

  • T. Zlámal
  • Š. Malotová
  • J. Petrů
  • Z. Brytan
  • V. Musil

  - MATEC Web of Conferences - Rok 2018

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• Experimental study of the LED lamp

  Publikacja

  • M. Markowicz
  • E. Smyk
  • R. Smusz

  - MATEC Web of Conferences - Rok 2021

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• A review of acoustic aspect in synthetic jet

  Publikacja

  • M. Szyca
  • E. Smyk

  - MATEC Web of Conferences - Rok 2021

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• Simulation of water turbine integrated with electrical generator

  Publikacja

  • D. Borkowski
  • M. Węgiel
  • P. Ocłoñ
  • T. Węgiel
  • T. Wegiel

  - MATEC Web of Conferences - Rok 2018

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• The application of response surface method to optimization of precision ball end milling

  Publikacja

  • S. Wojciechowski
  • R. Maruda
  • G. Królczyk

  - MATEC Web of Conferences - Rok 2017

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• The Evaluation of Surface Integrity During Machining of Inconel 718 with Various Laser Assistance Strategies

  Publikacja

  • S. Wojciechowski
  • D. Przestacki
  • T. Chwalczuk

  - MATEC Web of Conferences - Rok 2017

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• The analysis of instantaneous tool displacements during precise ball end milling

  Publikacja

  • S. Wojciechowski

  - MATEC Web of Conferences - Rok 2017

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• Turning process monitoring of internal combustion engine piston’s cylindrical surface

  Publikacja

  • P. Twardowski
  • M. Tabaszewski
  • S. Wojciechowski

  - MATEC Web of Conferences - Rok 2017

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• Tools for road infrastructure safety management in poland

  Publikacja

  • W. Kustra
  • L. Michalski

  - MATEC Web of Conferences - Rok 2017

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• Evaluation of suitability for 3D printing of high performance concretes

  Publikacja

  • M. Kaszyńska
  • M. Hoffmann
  • S. Skibicki
  • A. Zieliński
  • M. Techman
  • N. Olczyk
  • T. Wróblewski

  - MATEC Web of Conferences - Rok 2018

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• Variation de l’épaisseur du placage de déroulage des bois et son influence sur les caractéristiques mécaniques des panneaux LVL

  Publikacja

  • A. Daoui
  • C. Descamps
  • A. Zerizer
  • R. Marchal
  • B. Pałubicki

  - MATEC Web of Conferences - Rok 2014

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• Taking decisions in the diagnostic intelligent systems on the basis information from an artificial neural network

  Publikacja

  • S. Duer
  • S. Scaticailov
  • J. Paś
  • R. Duer
  • D. Bernatowicz

  - MATEC Web of Conferences - Rok 2018

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• Mixed Convection in Lid-Driven “T” Shallow Cavity Heated From Bottom and Filled by Two Immiscible Fluids of Air and Al2O3-Water Nanofluid

  Publikacja

  • A. Koulali
  • B. Meziani
  • D. Sadaoui
  • M. Adnani
  • A. Sahi
  • k. Aimad

  - MATEC Web of Conferences - Rok 2020

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• Analysis of heat transfer in a coated bed of an adsorption chiller

  Publikacja

  • K. Grabowska
  • M. Sosnowski
  • J. Krzywanski
  • K. Sztekler
  • W. Kalawa
  • A. Zylka
  • W. Nowak

  - MATEC Web of Conferences - Rok 2018

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• Modeling of a re-heat two-stage adsorption chiller by AI approach

  Publikacja

  • J. Krzywanski
  • K. Grabowska
  • M. Sosnowski
  • A. Żyłka
  • K. Sztekler
  • W. Kalawa
  • T. Wójcik
  • W. Nowak

  - MATEC Web of Conferences - Rok 2018

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• The influence of adsorption chillers on CHP power plants

  Publikacja

  • K. Sztekler
  • W. Kalawa
  • S. Stefański
  • J. Krzywanski
  • K. Grabowska
  • M. Sosnowski
  • W. Nowak

  - MATEC Web of Conferences - Rok 2018

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• Application of the nanoindentation method in assessing of properties of cement composites modified with silica-magnetite nanostructures

  Publikacja

  • E. Horszczaruk
  • R. Jedrzejewski
  • J. Baranowska
  • E. Mijowska

  - MATEC Web of Conferences - Rok 2018

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• The control system of the yeast drying process

  Publikacja

  • P. Wolszczak
  • W. Samociuk

  - MATEC Web of Conferences - Rok 2018

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