Wyniki wyszukiwania dla: GEAR PUMP

• Comprehensive circumscribing of non-linearity cases of a water supply system with smooth flow control

  Publikacja

  • R. M. Orłowski

  - Archives of Hydro-Engineering and Environmental Mechanics - Rok 2006

  W artykule opisano formalnie poprawne metody opisu matematycznego pracy pomp o płynnie regulowanych wydatkach oraz reduktorów ciśnienia i reduktorów przepływu w modelowaniu przepływów ustalonych zachodzących w systemach wodociągowych. Opisano metodę opartą o dynamiczną analizę wrażliwości systemu oraz metodę wykorzystującą charakterystyki hydrauliczne systemu wodociągowego. Przedstawiono wyniki symulacji wykorzystującej ww. metody...

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• Arterial cannula shape optimization by means of the rotational firefly algorithm

  Publikacja

  • K. Tesch
  • K. Kaczorowska-Ditrich

  - ENGINEERING OPTIMIZATION - Rok 2016

  The article presents global optimization results of arterial cannula shapes by means of the newly modified firefly algorithm. The search for the optimal arterial cannula shape is necessary in order to minimize losses and prepare the flow that leaves the circulatory support system of a ventricle (i.e. blood pump) before it reaches the heart. A modification of the standard firefly algorithm, the so-called rotational firefly algorithm,...

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• Analysis of the Possibility of Using New Types of Protective Coatings and Abrasion-Resistant Linings under the Operating Conditions of the Spiral Classifier at KGHM Polska Miedź S.A. Ore Concentration Plant

  Publikacja

  • M. Czekajło
  • K. Żakowski
  • S. Krakowiak
  • S. Kierepa

  - Coatings - Rok 2021

  A study was carried out to select the appropriate coatings for corrosion protection of the spiral classifier working at KGHM Polska Miedź S.A. Ore Concentration Plant. The abrasion resistance of selected protective coatings and wear-resistant linings was investigated using a DT-523 rotary abrasion tester with Taber CS-10 rubber abrasive discs. The average weight loss of the coatings after a cycle of 2000 revolutions was determined....

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• A targeted mass spectrometry immunoassay to quantify osteopontin in fresh-frozen breast tumors and adjacent normal breast tissues

  Publikacja

  • K. Macur
  • L. Hagen
  • T. Ciesielski
  • L. Konieczna
  • J. Skokowski
  • B. Jenssen
  • G. Slupphaug
  • T. Bączek

  - Journal of Proteomics - Rok 2019

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• PPAM 2022

  Wydarzenia

  11-09-2022 07:00 - 14-09-2022 13:56

  The PPAM 2022 conference, will cover topics in parallel and distributed computing, including theory and applications, as well as applied mathematics.

• Strategies for overcoming ABC-transporters-mediated multidrug resistance (MDR) of tumor cells. Review

  Publikacja

  • E. Borowski
  • M. Bontemps-Gracz
  • A. Piwkowska

  - Rok 2005

  Oporność wielolekowa (MDR) nowotworów jest główną przyczyną niepowodzeń w chemoterapii przeciwnowotworowej. Jest ona wynikiem nadprodukcji w komórkach opornych transporterów białkowych z nadrodziny ABC, eksportujących cytostatyk z komórki, których działanie uniemożliwia utrzymanie terapeutycznego stężenia leku. W publikacji dokonano przeglądu różnych strategii przeciwdziałania zjawisku MDR. Strategie te dotyczą zarówno kontroli...

• The homometallic warwickite V 2 OBO 3

  Publikacja

  • E. M. Carnicom
  • K. Górnicka
  • T. Klimczuk
  • R. J. Cava

  - JOURNAL OF SOLID STATE CHEMISTRY - Rok 2018

  The synthesis, structure and elementary magnetic characterization of the homometallic warwickite V2OBO3 are reported. The material adopts the orthorhombic warwickite structure type at room temperature, space group Pnma (No. 62) with lattice parameters a = 9.2317(1) Å, b = 3.1172(1) Å, and c = 9.5313(1) Å. Temperature-dependent magnetic susceptibility, electrical resistivity, and specific heat measurements show anomalies near 35 K,...

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• Corrosivity of environment and the current state of the steel elements at the former Auschwitz concentration camp

  Publikacja

  • A. Miszczyk
  • M. Szociński
  • K. Darowicki

  - STUDIES IN CONSERVATION - Rok 2017

  The objective of this study was to assess corrosivity of the atmospheric environment in the former Auschwitz I and Auschwitz II-Birkenau concentration and extermination camp, and to identify the protective properties of existing corrosion products in order to estimate the actual corrosion rate of original steel elements located there. The current atmospheric corrosivity of the former Auschwitz camp, specified during one year of exposure...

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• The 90th Birthday Jubilee of Professor Eugeniusz Bielewicz

  Publikacja

  • J. Górski
  • M. Skowronek
  • I. Kreja
  • P. Kłosowski
  • J. Ziółko

  - Archives of Civil Engineering - Rok 2014

  On the jubilee year of the 90th birthday of prof. Eugeniusz Bielewicz, a portrait of this eminent civil engineer and scholar is presented by his co-workers.

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• Comparison of Mathematical Models of Torque Transmitted by Multi-disc Wet Clutch with Experimental Results

  Publikacja

  • M. Bąk
  • P. Patrosz
  • P. Śliwiński
  • P. Załuski
  • M. Karpenko

  - Rok 2023

  In this article was described the methodology for the experimental study of flows in the prototype of a satellite hydraulic motor with a rotating body. The experimental tests of the motor were carried out at a low constant rotational speed in a wide range of pressure drop in this motor. The constant rotational speed of the motor was kept by a worm gear. Based on the test results, the leakage characteristics in the flat gaps of...

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• Experimental Study of Flow Rate in Hydraulic Satellite Motor with the Rotating Case at a Low Constant Rotational Speed

  Publikacja

  • P. Śliwiński
  • P. Patrosz
  • M. Bąk
  • M. Stosiak
  • K. Urbanowicz
  • Š. Šukevičius

  - Rok 2023

  In this article was described the methodology for the experimental study of flows in the prototype of a satellite hydraulic motor with a rotating body. The experimental tests of the motor were carried out at a low constant rotational speed in a wide range of pressure drop in this motor. The constant rotational speed of the motor was kept by a worm gear. Based on the test results, the leakage characteristics in the flat gaps of...

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• Designing a ship course controller by applying the adaptivebackstepping method

  Publikacja

  • A. Witkowska
  • R. Śmierzchalski

  - International Journal of Applied Mathematics and Computer Science - Rok 2012

  The article discusses the problem of designing a proper and efficient adaptive course-keeping control system for a seagoingship based on the adaptive backstepping method. The proposed controller in the design stage takes into account thedynamic properties of the steering gear and the full nonlinear static maneuvering characteristic. The adjustable parametersof the achieved nonlinear control structure were tuned up by using the...

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• PROBABLE RAINFALL IN GDAŃSK IN VIEW OF CLIMATE CHANGE

  Publikacja

  • W. Szpakowski
  • M. Szydłowski

  - Acta Scientiarum Polonorum Formatio Circumiectus - Rok 2018

  One of the manifestations of climate changes is the occurrence of a greater number of precipitation events, characterized by greater rain intensity that affects the economic stability of cities. Gdańsk is an example of a city in which such events have occurred since the beginning of the twenty-first century. Due to the altitude differences in the area of Gdańsk city (between –2 m and 180 m a.s.l.), the occurrence of extreme atmospheric...

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• Electron-scattering cross sections for selected alkyne molecules: Measurements and calculations

  Publikacja

  • C. Szmytkowski
  • P. Możejko
  • M. Zawadzki
  • K. Maciąg
  • E. Ptasińska-Denga

  - PHYSICAL REVIEW A - Rok 2014

  We report cross-section results from experimental and theoretical studies on electron collisions with 1-butyne (HC≡C–CH2CH3) and acetylene (HC≡CH) molecules and from computations for a propyne (HC≡C–CH3) molecule. Absolute grand -total electron-scattering cross sections (TCSs) were measured at impact energies ranging from about 0.5 to 300 eV using the linear electron-transmission method. The TCS energy curve for 1-butyne has a...

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• Pompy, sprężarki i wentylatory

  Kursy Online

  • M. Piwowarski

  Treści przedmiotu: Podział i krótkie omówienie poszczególnych rodzajów maszyn wirnikowych. Cechy wspólne i różnice w budowie i działaniu pomp, wentylatorów i sprężarek. Schematy budowy i zakres stosowania. Podstawowe pojęcia i definicje zgodne z polskimi normami. Podstawy teoretyczne działania wszystkich maszyn wirowych. Zjawiska towarzyszące przepływowi płynu w wirniku i kanałach przepływowych. Metody obliczeń i konstrukcja wirników...

• Examples of renewable and waste energy sources utilisation in municipal sewage treatment plants.

  Publikacja

  • E. Zaborowska

  - Rok 2004

  Tematem pracy jest problem zaopatrzenia miejskich oczysczalni ścieków w energię elektryczną i cieplną. przedstawiono dwie polskie oczyszczalnie scieków: w Żywcu i Grudziądzu jako przykłądy zastosowania odnawialnych i odpadowych źródeł energii. Zamieszczone zostały informacje na temat ilości produkowanego biogazu, źródeł energii, systemów zaopatrzenia w ciepło, w tym agregatów kogeneracyjnych i pomp ciepła. Sformułowano wnioski...

• Przykłady wykorzystania odnawialnych i odpadowych źródeł energii w miejskich oczyszczalniach ścieków

  Publikacja

  • E. Zaborowska

  - Rok 2005

  Tematem pracy jest problem zaopatrzenia miejskich oczyszczalni ścieków w energię elektryczną i cieplną. Przedstawiono dwie polskie oczyszczalnie ścieków: w Grudziądzu i Żywcu jako przykłady zastosowania odnawialnych i odpadowych źródeł energii. Zamieszczone zostały informacje na temat ilości produkowanego biogazu, źródeł energii, systemów zaopatrzenia w ciepło, w tym agregatów kogeneracyjnych i pomp ciepła. Sformułowano wnioski...

• Singular curves in the resultant thermomechanics of shells

  Publikacja

  • W. Pietraszkiewicz
  • V. Konopińska-Zmysłowska

  - INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE - Rok 2014

  Some geometric and kinematic relations associated with the curve moving on the shell base surface are discussed. The extended surface transport relation and the extended surface divergence theorems are proposed for the piecewise smooth tensor fields acting on the regular and piecewise regular surfaces. The recently formulated resultant, two-dimensionally exact, thermodynamic shell relations - the balances of mass, linear and angular...

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• Properties of surface layers of titanium alloy Ti6Al4V after laser melting processes

  Publikacja

  • A. Ossowska
  • A. Zieliński
  • M. Buczek

  - Advances in Materials Science - Rok 2010

  The article presents the investigation results of titanium alloy Ti6Al4V surface layer after laser melting process. The process of laser melting was performed using Nd-YAG laser. The evaluation of structure of the alloy as well as hardness and chemical composition was performed. It was shown that laser melting changes the structure and properties of titanium alloy Ti6Al4V and process parameters as scanning speed affects the thickness...

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• Microstructure and Properties of Electroless Ni-P/Si3N4 Nanocomposite Coatings Deposited on the AW-7075 Aluminum Alloy

  Publikacja

  • K. Czapczyk
  • P. Zawadzki
  • N. Wierzbicka
  • R. Talar

  - Materials - Rok 2021

  The article presents the results of mechanical and tribological tests of Ni-P/Si3N4 nanocomposite coatings deposited on the AW-7075 aluminum alloy using the chemical reduction method. The influence of the chemical composition on the Vickers microhardness determined by the DSI method was examined. The nanocomposite layers were made of Si3N4 silicon nitride in a polydisperse powder with a particle size ranging from 20 to 25 nm. The...

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• Topological extraordinary optical transmission

  Publikacja

  • K. Baskourelos
  • O. Tsilipakos
  • T. Stefański
  • S. F. Galata
  • E. N. Economou
  • M. Kafesaki
  • K. L. Tsakmakidis

  - Physical Review Research - Rok 2022

  Τhe incumbent technology for bringing light to the nanoscale, the near-field scanning optical microscope, has notoriously small throughput efficiencies of the order of 10^4-10^5 or less. We report on a broadband, topological, unidirectionally guiding structure, not requiring adiabatic tapering and, in principle, enabling near-perfect (∼100%) optical transmission through an unstructured single arbitrarily subdiffraction slit at...

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• Nickel-nanodiamond coatings electrodeposited from tartrate electrolyte at ambient temperature

  Publikacja

  • I. Makarova
  • I. Dobryden
  • D. Kharitonov
  • A. Kasach
  • J. Ryl
  • E. Repo
  • E. Vuorinen

  - SURFACE & COATINGS TECHNOLOGY - Rok 2019

  In this study, nanocrystalline Ni and Ni-diamond coatings were obtained by electrodeposition from tartrate electrolyte at ambient temperature aiming at improving corrosion and wear properties of the material. The created surfaces were investigated with regard to microhardness, adhesion, wear- and corrosion-resistance. The various methods such as atomic force microscopy, scanning electron microscopy, electrochemical impedance spectroscopy...

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• Nieustalony przepływ w rurociągach pod ciśnieniem – eksperyment a teoria

  Publikacja

  • N. K. Gietka

  - Polski Instalator - Rok 2016

  Uderzenie hydrauliczne w przewodach pod ciśnieniem to zjawisko gwałtownych zmian ciśnienia będących następstwem szybkich w czasie zmian prędkości. Przyczynami powstawania uderzenia hydraulicznego mogą być zarówno przypadkowe zdarzenia (np. przerwy w dostawie prądu do stacji pomp, awaria pomp), jak i niewłaściwe eksploatowanie instalacji (np. nieprawidłowe zamykanie lub otwieranie zaworów). Przeciwdziałanie skutkom tego zjawiska...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K07

  Dane Badawcze

  open access

  • J. Łubiński
  • K. Druet

  - seria: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K06

  Dane Badawcze

  open access

  • J. Łubiński
  • K. Druet

  - seria: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K04

  Dane Badawcze

  open access

  • J. Łubiński
  • K. Druet

  - seria: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - PARAFFIN OIL. Specim. set K08

  Dane Badawcze

  open access

  • J. Łubiński
  • K. Druet

  - seria: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: PARAFFIN OIL. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig:...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K02

  Dane Badawcze

  open access

  • J. Łubiński
  • K. Druet

  - seria: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K05

  Dane Badawcze

  open access

  • J. Łubiński
  • K. Druet

  - seria: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K03

  Dane Badawcze

  open access

  • J. Łubiński
  • K. Druet

  - seria: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K01

  Dane Badawcze

  open access

  • J. Łubiński
  • K. Druet

  - seria: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - PARAFFIN OIL. Specim. set K09

  Dane Badawcze

  open access

  • J. Łubiński
  • K. Druet

  - seria: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: PARAFFIN OIL. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig:...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K06

  Dane Badawcze

  open access

  • J. Łubiński
  • K. Druet

  - seria: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• DIGITAL HYDRAULICS CIRCUIT BASED ON PWM FUNCTION FOR CONTROLLING HYDRAULIC ACTUATOR POSITION

  Publikacja

  • J. Zubair Ahmed
  • P. Śliwiński
  • K. Kędzia

  - Rok 2022

  Hydraulic systems are used in many different industries, such as multi-source hydrostatic drive systems. In traditional hydraulic systems, a proportional servo valve is used to control the position of hydraulic actuators. The low energy efficiency and high cost of these control valves are two major problems with these systems. Digital hydraulics is one of the most unique ideas on how to solve these problems. Researchers like digital...

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• Pipeline System for Heat Transportation from Nuclear Power Plant – an Optimizing Approach

  Publikacja

  • P. Hirsch
  • M. Grochowski
  • K. Duzinkiewicz

  - Rok 2015

  Over the last few years heat piping insulation technology and pump systems efficiency have been significantly improved. Reduced thermal losses encourage heat transportation over long distances. It provides an opportunity for increasing thermodynamic efficiency of Nuclear Power Plants (NPPs) that are often located in rural areas because of safety issues. It can be achieved by Combined Heat and Power (CHP) generation, as heat produced...

• Portable exhaled breath analyzer employing fluctuation-enhanced gas sensing method in resistive gas sensors

  Publikacja

  • A. Kwiatkowski
  • T. Chludziński
  • J. Smulko

  - Metrology and Measurement Systems - Rok 2018

  This paper presents a portable exhaled breath analyser, developed to detect selected diseases. The set-up employs resistive gas sensors: commercial MEMS sensors and prototype gas sensors made of WO3 gas sensing layers doped with various metal ingredients. The set-up can modulate the gas sensors by applying UV light to induce physical changes of the gas sensing layers. The sensors are placed in a tiny gas chamber of a volume...

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• Disorders related to short gestation and low birth weight, not elsewhere classified - Male, 0 - Tissue image [6230730007852681]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: VS200 Olympus slide scanner (20x magnification) and saved to DICOM format.

• Hidrocystoma - Female, 65 - Tissue image [6300730028241131]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of CONNECTIVE, SUBCUTANEOUS AND OTHER SOFT TISSUES 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.

• Income obtained according to particular rates only by taxpayers conducting non-agricultural business activity in 2016

  Dane Badawcze

  open access

  • P. Kasprzak

  A special form of income taxation addressed to the SME sector is the Lump sum on registered income, which is a simplified form of income tax payment for natural persons conducting business activity.The choice of this form of taxation is optional. In 2016, the tax in this form could be paid by taxpayers who in 2015 obtained income from non-agricultural...

• Forty-five years of the Rigid Finite Element Method

  Publikacja

  • E. Wittbrodt
  • S. Wojciech

  - Archive of Mechanical Engineering - Rok 2013

  In the paper there are described developments of the method in the past 45 year years in dynamical analysis of system with constant and changing in time configuration, including also control of the systems.

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• Sprawiedliwość agrarna

  Publikacja

  • A. Karalus

  - Archiwum Historii Filozofii i Myśli Społecznej - Rok 2019

  prawiedliwość agrarna została napisana z intencją zreformowania stosunków społeczno-politycznych. Tekst opiera się na założeniu wywodzącym się z tradycji prawnonaturalnej, które brzmi, iż pierwotnie każdy był współwłaścicielem powierzchni Ziemi. Powstanie prywatnej własności ziemskiej (czyli, eo ipso, wywłaszczenie większości ludzi) należy zakwalifikować jako akt bezprawia, kumulujący się w historycznie nawarstwionych nierównościach...

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• Projektowanie instalacji energetycznych, (PG_00057251)

  Kursy Online

  • M. Piwowarski

  Przegląd najważniejszych przemysłowych instalacji energetycznych. Włączanie urządzeń pomocniczych do instalacji. Instalacje parowo-wodne. Instalacje olejowe i paliwowe. Projektowanie rurociągów energetycznych. Instalacje pompowe. Instalacje pneumatyczne i wentylacyjne. Współpraca pomp i sprężarek z rurociągami instalacji energetycznych.

• Static electric multipole susceptibilities of the relativistic hydrogenlike atom in the ground state: Application of the Sturmian expansion of the generalized Dirac-Coulomb Green function

  Publikacja

  • R. Szmytkowski
  • G. Łukasik

  - PHYSICAL REVIEW A - Rok 2016

  The ground state of the Dirac one-electron atom, placed in a weak, static electric field of definite $2^{L}$ polarity, is studied within the framework of the first-order perturbation theory. The Sturmian expansion of the generalized Dirac-Coulomb Green function [R. Szmytkowski, J. Phys. B: At. Mol. Opt. Phys. 30, 825 (1997); erratum R. Szmytkowski, J. Phys. B: At. Mol. Opt. Phys. 30, 2747 (1997)] is used to derive closed-form analytical...

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• Janusz Cieśliński prof. dr hab. inż.

  Osoby

  Instytut Energii

  Urodził się 15 kwietnia 1954 r. w Słupsku. Jest absolwentem Wydziału Budowy Maszyn Politechniki Gdańskiej (1978), z którą związał całe swoje życie zawodowe. W 1986 r. obronił doktorat, w 1997 r. – habilitację, w 2006 r. – uzyskał tytuł profesora. Pełnił funkcje prodziekana ds. nauki Wydziału Mechanicznego przez dwie kadencje (2002–2008) oraz kierownika: Katedry Maszyn Przemysłu Spożywczego (2002–2006), Katedry Ekoinżynierii i...

• Pole pracy układu napędu hydrostatycznego

  Publikacja

  • Z. Paszota

  - Rok 2009

  Przedstawiono pole pracy układu napędu hydrostatycznego. Uzasadniono podział parametrów pracy silnika hydraulicznego i pompy na parametry niezależne i zależne od pracy tych maszyn wyporowych i układu z nich utworzonego. Zaproponowano podjęcie tematu badawczego umożliwiającego opracowanie metody wyznaczania charakterystyk energetycznych pomp i silników hydraulicznych obrotowych oraz zmodyfikowanych metod wyznaczania charakterystyk...

• Acceleration waves in the nonlinear micromorphic continuum

  Publikacja

  • V. Eremeev
  • L. Lebedev
  • M. Cloud

  - MECHANICS RESEARCH COMMUNICATIONS - Rok 2018

  Within the framework of the nonlinear elastic theory of micromorphic continua we derive the conditions for propagation of acceleration waves. An acceleration wave, also called a wave of weak discontinuity of order two, can be treated as a propagating nonmaterial surface across which the second derivatives of the placement vector and micro-distortion tensor may undergo jump discontinuities. Here we obtain the acoustic tensor for...

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• Seasonal and spatial differences in metal and metalloid concentrations in the snow cover of Hansbreen, Svalbard

  Publikacja

  • K. Kozioł
  • A. Uszczyk
  • F. Pawlak
  • M. Frankowski
  • Ż. Polkowska

  - Frontiers in Earth Science - Rok 2021

  Metals and metalloids in snow on glaciers, depending on the season of deposition, may come from various sources: local rock dust (erosion of the geological substratum), marine aerosol, local human activity (e.g. fuel combustion, waste incineration) and long-range atmospheric transport. Hansbreen glacier, located close to the Polish Polar Station in Svalbard, is a perfect site to study metals and metalloids: it has complex geological...

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• 3D Machine Vision System for Inspection of Contact Strips in Railway Vehicle Current Collectors

  Publikacja

  • L. Jarzębowicz
  • S. Judek

  - Rok 2014

  Construction and technical condition of current collectors is crucial to reliability and safety of railway transportation. According to the Technical Specifications for Interoperability railway vehicles in the European Union should be equipped with carbon contact strips. Excessive wear or defects of contact strips degrade the capability of undisturbed power transmission, cause faster wear of contact wire, and can even result in...

• Mechanism of Li nucleation at graphite anodes and mitigation strategies

  Publikacja

  • C. Peng
  • A. Bhandari
  • J. Dziedzic
  • J. R. Owen
  • C. Skylaris
  • D. Kramer

  - Journal of Materials Chemistry A - Rok 2021

  Lithium metal plating is a critical safety issue in Li-ion cells with graphite anodes, and contributes significantly to ageing, drastically limiting the lifetime and inducing capacity loss. Nonetheless, the nucleation mechanism of metallic Li on graphite anodes is still poorly understood. But in-depth understanding is needed to rationally design mitigation measures. In this work, we conducted FirstPrinciples studies to elucidate...

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• Interfacial water controls the process of adsorption of hyperactive antifreeze proteins onto the ice surface

  Publikacja

  • J. Grabowska
  • A. Kuffel
  • J. Zielkiewicz

  - JOURNAL OF MOLECULAR LIQUIDS - Rok 2020

  A mechanism of interactions between the ice-binding surface of a hyperactive antifreeze protein molecule and the ice surface is proposed, involving the influence of water present between the two surfaces on the behavior of the approaching molecule. It is demonstrated that the interfacial water, even before its full solidification, can act as a factor that pushes away or pulls nearer the protein molecule to ensure its proper positioning....

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