Search results for: LOW-CYCLIC FATIGUE

• Fatigue data of Cement Bitumen Treated Material Mixture C3E5.5 (over 28 days of curing at 20C, field cores)

  Open Research Data

  open access

  • M. Jaczewski

  - series: Miniatura 6 (2022/06/X/ST8/01275)

  Dataset presents data of fatigue life determined for cold recycled mixture – cement bitumen treated material mixture with following binding agents: 3% cement and 5.5% emulsion (C3E5.5). Mixture was designed according to Polish requirements for the base course of pavement. Mixture contains 60% of RAP material. Specimen size: f=100 mm, h=48,4 - 70,9 mm. 

• Fatigue investigation of plain journal bearings

  Publication

  • J. Sikora

  - Year 2005

  W artykule przedstawiono wybrane wyniki badań nad wytrzymałością zmęczeniową warstw ślizgowych w panwiach łozysk poprzecznych, prowadzonych w laboratorium tribologicznym Katedry Konstrukcji i Eksploatacji Maszyn Politechniki Gdańskiej. Opisano stanowiska badawcze i metodykę planowania eksperymentów oraz procedurę opracowywania wyników testów zmęczeniowych. Przedstawiono zamierzenia badawcze w zakresie przedmiotowych badań zmęczeniowych.

• Mathematical modeling and prediction of pit to crack transition under cyclic thermal load using artificial neural network

  Publication

  • D. Yona

  - Year 2023

  The formation of pitting is a major problem in most metals, which is caused by extremely localized corrosion that creates small holes in metal and subsequently, it changes into cracks under mechanical load, thermo-mechanical stress, and corrosion process factors. This research aims to study pit to crack transition phenomenon of steel boiler heat tubes under cyclic thermal load, and mathematical modeling...

• Low-coherence method of hematocrit measurement

  Publication

  • M. Szczerska
  • M. Gnyba
  • M. Kruczkowski

  - Year 2011

  During the last thirty years low-coherence measurement methods have gained popularity because of their unique advantages. Low-coherence interferometry, low-coherence reflectometry and low-coherence optical tomography offer resolution and dynamic range of measurement at the range of classical optical techniques. Moreover, they enable measurements of the absolute value of the optical path differences, which is still an unsolved problem...

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• Cyclic polarization studies of Mg corrosion in alkaline environment

  Open Research Data

  open access

  • J. Ryl

  The dataset contains the cyclic polarization studies of Mg (99.99%) in NaOH electrolyte at different pH values: 10, 11 and 12 aiming at understanding of Mg(OH)2 passive layer formation mechanism and conditions. The electrochemical studies were carried out in a three electrode setup, with Pt mesh as the counter electrode and Ag|AgCl as the reference...

• Comparison of different one-parameter damage laws and local stress-strain approaches in multiaxial fatigue life assessment of notched components

  Publication

  • R. Branco
  • J. Costa
  • L. Borrego
  • F. Berto
  • S. Razavi
  • W. Macek
  • W. Macek

  - International Journal of Fatigue - Year 2021

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• Energy-based fatigue failure characteristics of materials under random bending loading in elastic-plastic range

  Publication

  • W. Macek
  • T. Łagoda
  • N. Mucha

  - FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES - Year 2018

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• Cyclic Behavior of Masonry Shear Walls Retrofitted with Engineered Cementitious Composite and Pseudoelastic Shape Memory Alloy

  Publication

  • A. Tabrizikahou
  • E. Noroozinejad
  • M. Kuczma
  • M. Łasecka-Plura

  - SENSORS - Year 2022

  The behavior of masonry shear walls reinforced with pseudoelastic Ni–Ti shape memory alloy (SMA) strips and engineered cementitious composite (ECC) sheets is the main focus of this paper. The walls were subjected to quasi-static cyclic in-plane loads and evaluated by using Abaqus. Eight cases of strengthening of masonry walls were investigated. Three masonry walls were strengthened with different thicknesses of ECC sheets using...

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• Fracture Areas Quantitative Investigating of Bending-Torsion Fatigued Low-Alloy High-Strength Steel

  Publication

  • W. Macek

  - Metals - Year 2021

  In this study, the impact of pseudo-random non-proportional bending-torsion fatigue loadings proportion on the fatigue life and the fracture surface topography was analyzed. Investigation was carried out for 24 specimens made of S355J2 steel with 11 different ratios of maximum stresses λ. For these cases, after the fatigue tests, the surface topography measurements were carried out using an optical profilometer, using the focus...

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• Journal of Low Power Electronics

  Journals

  ISSN: 1546-1998 , eISSN: 1546-2005

• Healthcare in Low-resource Settings

  Journals

  ISSN: 2281-7824

• International Journal of Low Radiation

  Journals

  ISSN: 1477-6545

• Early Modern Low Countries

  Journals

  eISSN: 2543-1587

• JOURNAL OF LOW TEMPERATURE PHYSICS

  Journals

  ISSN: 0022-2291 , eISSN: 1573-7357

• Low-Voltage Low-Power Filters with Independent ω0 and Q Tuning for Electronic Cochlea Applications

  Publication

  • W. Jendernalik
  • J. Jakusz
  • G. Blakiewicz

  - Electronics - Year 2022

  An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (Q)-factor tuning technique, an independent change of the cutoff frequency (ω0) and the Q-factor with unchanged gain at low frequencies is achieved in this filter. The techniques applied result in a simple filter design with low Q-factor sensitivity to component...

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• The use of a 4 PB strain sweep fatigue test to evaluate characteristics of carbon grid reinforced asphalt beams

  Publication

  • M. Stienss
  • P. Jaskuła
  • C. Szydłowski

  - Year 2024

  The article presents research results concerning pre-bituminized carbon grids for asphalt pavement reinforcement, which are used to prevent cracking and crack reflection thus increasing bearing capacity and durability of pavement. Research program involved testing of large sized double-layer samples, both reinforced and unreinforced. The advantage of using a carbon grid was especially visible after crack initiation. The energy...

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• Comparison of low-temperature cracks intensity on pavements with high modulus asphalt concrete and conventional asphalt concrete bases

  Publication

  • D. Ryś
  • J. Judycki
  • M. Pszczoła
  • M. Jaczewski
  • Ł. Mejłun

  - CONSTRUCTION AND BUILDING MATERIALS - Year 2017

  High modulus asphalt concrete (HMAC) base courses provide very good resistance to rutting and fatigue but they can increase the risk of low-temperature cracking as compared with conventional asphalt concrete (AC). The article presents the comparison of these two road materials in terms of low-temperature cracking. The statistical method based on the ordered logistic regression model was used. The analysis was based on results of...

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• The Usefulness of Cyclic Diamidines with Different Core-substituents as Antitumor Agents

  Publication

  • J. Spychala

  - BIOORGANIC CHEMISTRY - Year 2008

  A series of related polycationic compds. has been screened for potential antitumor activity by the NCI's in vitro testing (one dose primary anticancer assay and the NCI-60 full panel screening).  The GI50 values of triazines 3 and 4 are on av. 1.9 μM and 2.4 μM, resp.  Furan 8 deserves mention too (1.9 μM).  The biol. test results showed that carbazole 10 possessed cytotoxic activity in the nanomolar range, much better than...

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• Accelerated degradation of organic coatings due to cyclic mechanical stress

  Publication

  • M. Szociński

  - Physico-Chemical Mechanics of Materials - Year 2006

  Potrzeba okresowej renowacji wymalowań na obiektach technicznych wynika z naturalnej degradacji powłok ochronnych wskutek oddziaływania czynników obecnych w miejscu eksploatacji. W niniejszej pracy opisano synergiczny wpływ dwóch z nich - promieniowana ultrafioletowego i cyklicznych naprężeń mechanicznych - na trwałość komercyjnie stosowanego zestawu powłokowego przeznaczonego do ochrony konstrukcji mostowych.

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• Cyclic mechanical stress impact on protective properties of organic coatings

  Publication

  • K. Darowicki
  • M. Szociński

  - Year 2003

  Celem pracy jest zaprezentowanie wyników badań wpływu cyklicznych naprężeń mechanicznych na układy powłoka/metal. Powtarzające się naprężenia mechaniczne zostały zidentyfikowane jako czynnik w znaczącym stopniu przyczyniający się do degradacji powłok. Próbki składające się z powłoki epoksydowej nałożonej na stal St3SAl poddano serii 21000 cykli naprężenie-odpuszczenie. Badania przeprowadzono w zakresie odkształceń elastycznych...

• Extension of selected ADFA construction algorithms to the case of cyclic automata.

  Publication

  • J. Daciuk

  - Year 2004

  W niedawnym artykule Rafael Carrasco i Mikel Forcada przedstawiają przyrostowy algorytm dodawania słów do minimalnego, acyklicznego automatu skończonego. Ten algorytm jest uogólnieniem przyrostowego algorytmu tworzenia acyklicznych deterministycznych automatów skończonych (ADFAs). Przedstawiamy podobne uogólnienia dwóch innych algorytmów tworzenia ADFAs. Chociaż te ougólnienia zostały już opublikowane w maju i czerwcu 2004 r.,...

• Effect of cyclic shearing on the evolution of localisation of deformationsin granular bodies.

  Publication

  • J. Tejchman

  - Year 2003

  Omówiono wpływ cyklicznego ścinania na lokalizację odkształceń stycznych w materiałach granulowanych. Obliczenia wykonano metodą elementów skończonych na bazie mikropolarnego prawa hipoplastycznego dla wąskiej warstwy piasku. Obliczenia wykonano dla różnych amplitud ścinania i różnych początkowych zagęszczeń piasku.

• LOW NOISE TIRES FOR HYBRID AND ELECTRIC VEHICLES

  Publication

  • J. Ejsmont
  • B. Świeczko-Żurek
  • S. Taryma

  - Year 2014

  Low Emission Vehicles that are hybrid and electric cars may benefit from specially designed tires that are optimized for driving conditions typical for such vehicles. It is possible that in the future Low Emission Vehicles, especially passenger cars, will substitute conventional vehicles in all applications, however for the time being they are mostly used in urban and suburban areas. Urban traffic has a rather low demand for grip...

• Cyclic voltammetry curves of the V2O5 nanorods (Na-ion batteries)

  Open Research Data

  open access

  • M. Prześniak-Welenc
  • M. Wilamowska-Zawłocka
  • J. Ryl

  - series: Vanadium oxides

  The DataSet contains the next thirty cycles voltammetry curves for the V2O5 nanorods obtained by the sol-gel method. The cyclic voltammetry was measured using the AUTOLAB 302N potentiostat-galvanostat. The measurements were carried out in a voltage range of 2 V to 4 V vs. Na/Na+ at a scan rate of 1 mV/s.  As an electrolyte 1M NaPF6 was applied.

• Cyclic voltammetry curves of the V2O5 nanocrystals (Na-ion batteries)

  Open Research Data

  open access

  • M. Prześniak-Welenc
  • M. Wilamowska-Zawłocka
  • J. Ryl

  - series: Vanadium oxides

  The DataSet contains the next thirty cycles voltammetry curves for the V2O5 nanocrystals obtained by the sol-gel method. The cyclic voltammetry was measured using the AUTOLAB 302N potentiostat-galvanostat. The measurements were carried out in a voltage range of 2 V to 4 V vs. Na/Na+ at a scan rate of 1 mV/s.  As an electrolyte 1M NaPF6 was applied.

• Fatigue life of steel, laser welded panels

  Publication

  • J. Kozak

  - Polish Maritime Research - Year 2006

  W publikacji przedstawiono zagadnienia dotyczące możliwości analizy trwałości zmęczeniowej stalowyxh paneli spawanych laserowo typu sandwich. Przedstawiono wyniki badań laboratoryjnych w skali naturalnej a także krzywe projektowe uzyskane na podstawie systematycznych badań połączeń elementarnych spawanych laserowo. Na podstawie przedstawionych i uogólnionych wyników pokazano propozycję metodyki szacowania trwałości zmęczeniowej...

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• Forecasting of fatigue life of laser welded joints

  Publication

  • J. Kozak

  - SCIENTIFIC PROBLEMS OF MACHINES OPERATION AND MAINTENANCE - Year 2007

  W pracy przedstawiono podstawowe dane na temat stalowych paneli typu sandwich. Zaprezentowano wyniki testów zmęczeniowych elementarnych połączeń teowych spawanych laserowo. Omówiono szczegółowo te cechy, które mają istotny wpływ na statyczne i zmęczeniowe własności złącza. Na podstawie przedstawionych wyników badań zmęczeniowych elementarnych połączeń spawanych laserowo uzyskano krzywą projektową S-N dla jednego z pokazanych modeli...

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• Fatigue Behaviour of Sintered Duplex Stainless Steel

  Publication

  • T. Tański
  • Z. Brytan
  • K. Labisz
  • Z. Brytan

  - Procedia Engineering - Year 2014

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• Fatigue criterial parameters of variable amplitude stress.

  Publication

  • J. Kolenda

  - Year 2004

  Przedstawiono oryginalne kryterialne parametry zmęczeniowe naprężenia o zmiennej amplitudzie. Dla ich wyznaczenia założono, że wydatkowana w procesie zmęczenia energia jest proporcjonalna do energii sprężystego odkształcenia postaciowego. Jeżeli przyrost zniszczenia spowodowanego przez nj cykli naprężenia o stałej amplitudzie aj jest odniesiony do energii sprężystego odkształcenia postaciowego przekazanej jednostkowej objętości...

• Increasing rail life by forecasting fatigue failure.

  Publication

  • B. Bogdaniuk
  • A. Massel
  • R. Radomski

  - NDT & E INTERNATIONAL - Year 2003

  Referat poświęcony jest przedłużaniu żywotności szyn i obejmuje zagadnienia prognozowania liczby pęknięć a także planowania szlifowań szyn. Dane pomiarowe pochodzą z wieloletnich badań przeprowadzonych w Katedrze Inżynierii Kolejowej Politechniki Gdańskiej na liniach magistralnych PKP.

• Cyclic voltammetry curves of the V2O5 nanorods (Li-ion batteries)

  Open Research Data

  open access

  • M. Prześniak-Welenc
  • M. Wilamowska-Zawłocka
  • J. Ryl

  - series: Vanadium oxides

  The DataSet contains the next thirty cycles voltammetry curves for the V2O5 nanocrystals obtained by the sol-gel method. The cyclic voltammetry was measured using the AUTOLAB 302N potentiostat-galvanostat. The measurements were carried out in a voltage range of 2 V to 4 V vs. Li/Li+ at a scan rate of 1 mV/s. The results show that in the subsequent cycles,...

• Cyclic voltammetry curves of the V2O5 nanocrystals (Li-ion batteries)

  Open Research Data

  open access

  • M. Prześniak-Welenc
  • M. Wilamowska-Zawłocka
  • J. Ryl

  - series: Vanadium oxides

  The DataSet contains the next thirty cycles voltammetry curves for the V2O5 nanocrystals obtained by the sol-gel method. The cyclic voltammetry was measured using the AUTOLAB 302N potentiostat-galvanostat. The measurements were carried out in a voltage range of 2 V to 4 V vs. Li/Li+ at a scan rate of 1 mV/s. The results show that in the subsequent cycles,...

• Analiza trwałości zmęczeniowej asfaltów drogowych i modyfikowanych z wykorzystaniem testu liniowego zwiększania amplitudy / Analysis of the fatigue life of neat and modified bitumens using linear amplitude sweep test

  Publication

  • M. Zabrocka
  • D. Ryś

  - Roads and Bridges - Drogi i Mosty - Year 2018

  The paper presents an evaluation of the fatigue resistance of selected Polish bituminous binders: neat bitumen 50/70, polymer modified bitumen PMB 45/80-55 and polymer highly modified bitumen PMB 45/80-80. The linear amplitude sweep (LAS) test, which is a new bitumen performance grading test developed in the USA, and was used to assess the fatigue life of the bitumens. Highly modified bitumen 45/80-80 showed 10-20 times higher...

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• A brief note on monotonic and fatigue fracture events investigation of thin-walled tubular austenitic steel specimens via fracture surface topography analysis (FRASTA)

  Publication

  • W. Macek
  • D. Sampath
  • Ł. Pejkowski
  • K. Żak

  - ENGINEERING FAILURE ANALYSIS - Year 2022

  The main objective of this short communication is to show the fracture progression in each loading case and complement knowledge about fracture mechanisms underpinning the tensile and fatigue performance of thin-walled tubes. For this purpose, the fracture surface topography analysis (FRASTA) method was used in the thin-walled tubular austenitic stainless-steel specimens. Two cases were analyzed: monotonic tension, and uniaxial...

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• Endometrioid stromal sarcoma, low grade - Female, 74 - Tissue image [6180730013786841]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of CORPUS UTERI 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.

• Endometrioid stromal sarcoma, low grade - Female, 74 - Tissue image [6180730013782931]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of CORPUS UTERI 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.

• Endometrioid stromal sarcoma, low grade - Female, 74 - Tissue image [6180730013783131]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of CORPUS UTERI 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.

• Endometrioid stromal sarcoma, low grade - Female, 74 - Tissue image [6180730013784491]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of CORPUS UTERI 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.

• Endometrioid stromal sarcoma, low grade - Female, 74 - Tissue image [6180730013783241]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of CORPUS UTERI 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.

• Mucinous cystic neoplasm with low grade dysplasia - Female, 40 - Tissue image [7040247104932011]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PANCREAS 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.

• Mucinous cystic neoplasm with low grade dysplasia - Female, 40 - Tissue image [6300730028253261]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PANCREAS 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.

• Mucinous cystic neoplasm with low grade dysplasia - Female, 40 - Tissue image [630073002825231]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PANCREAS 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.

• Novel Low-Loss Substrates for 5G Applications

  Publication

  • K. Babicki
  • A. Lamęcki
  • M. Mrozowski
  • M. Baranowski
  • A. Wroblewska
  • M. Zdrojek
  • B. Salski
  • J. Krupka

  - Year 2022

  This paper presents a feasibility study of a new type of microwave low-loss dielectric substrates for 5G network applications. The new substrate materials are composites of polypropylene and high-dielectric-constant micro-ceramics. This combination is expected to form a very low-loss dielectric material at low fabrication cost. Two substrate samples with different dielectric properties are fabricated and their characteristics at...

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• Adaptable management for cooling cyclic air in ship power plants by heat conversion – Part 1: Downsizing strategy for cogeneration plants

  Publication

  • R. Radchenko
  • A. Radchenko
  • D. Mikielewicz
  • M. Radchenko
  • A. Pavlenko
  • A. Andreev

  - ENERGY - Year 2024

  The ship power plants (SPP) are generally based on Diesel engines. Their fuel efficiency is gradually sensible to cyclic air temperatures and drops with their rise. A sustainable performance of ship engines with high fuel efficiency is possible by cooling intake and charge air as two objects in waste heat conversion chillers. The peculiarities of marine engine application are associated with constrained space of machine room. Whereas,...

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• Detection and classification of gaseous compounds by solid electrolyte cyclic voltammetry sensors

  Publication

  • G. Jasiński

  - Year 2010

  W pracy omówiono właściwości i ostatnie wyniki badań dotyczące czujników elektrokatalitycznych.

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• The high-cyclic model for sand tested beyond the usual ranges of application

  Publication

  • L. Knittel
  • A. Lamparter
  • A. Niemunis
  • H. H. Stutz

  - Acta Geotechnica - Year 2023

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• Cryogenic Treatment Effect on Cyclic Behavior of Ni54Ti46 Shape Memory Alloy

  Publication

  • T. da
  • E. da

  - Shape Memory and Superelasticity - Year 2021

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• Explicit accumulation model for granular materials under multiaxial cyclic loading.

  Publication

  • T. Triantafyllidis
  • T. Wichtman
  • A. Niemunis

  - Year 2004

  Próba korelacji parametrów modelu akumulacyjnego piasku z wynikami badań dynamicznych piasku.

• Compaction of freshly pluviated granulates under uniaxial and multiaxial cyclic loading.

  Publication

  • A. Niemunis
  • T. Wichtman
  • T. Triantafyllidis

  - Year 2003

  .

• Synthesis and structural characterization of new cyclic siloxane with functionalized organic substituents

  Publication

  • K. Kazimierczuk
  • A. Dołęga

  - PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS - Year 2017

  Octa(2-pyridyloxy)cyclotetrasiloxane was isolated as the product of the reaction between silicon disulfide and 2-hydroxypyridine. The new compound has been characterised by single crystal X-ray analysis, revealing a planar eight-membered ring with functionalized organic substituents on the silicon atoms.

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