Wyniki wyszukiwania dla: NANO-TUBULAR STRUCTURE

• Preparation of nano-tubular oxide layers on titanium alloy Ti13Nb13Zr

  Publikacja

  • A. Ossowska
  • A. Zieliński
  • M. Supernak

  - Engineering of Biomaterials / Inżynieria Biomateriałów - Rok 2011

  The article presents results of oxidation tests and corrosion investigations of titanium alloy Ti13Nb13Zr preformed at different conditions. The oxide layers have been formed using electrochemical method in 2M H3PO4 + 0,3% HF solution for 30 min. and 1h at 20V constant voltage. The corrosion tests heve been made with poteniodynamic method in Ringer's solution at pH ranged 3 and 7. It has been shown that the nano-oxide films, which...

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• Tubular House - Form Follows Technology, Concrete Shell Structure with Inner Thermal Insulation

  Publikacja

  • R. Idem
  • P. Kleczek
  • P. Chudoba
  • K. Pawłowski

  - Rok 2017

  The aim of this paper is the theoretical analysis of the possibilities and limitations of using an unconventional technology and the original architectural form stemming from it – the building with external construction and internal insulation. In Central European climatic conditions, the traditional solution for the walls of heated buildings relies on using external thermal insulation. This stems from building physics: it prevents...

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• Nonlocal Vibration of Carbon/Boron-Nitride Nano-hetero-structure in Thermal and Magnetic Fields by means of Nonlinear Finite Element Method

  Publikacja

  • H. M. Sedighi
  • M. Malikan
  • A. Valipour
  • K. Kamil Żur

  - Journal of Machinery Manufacture and Reliability - Rok 2020

  Hybrid nanotubes composed of carbon and boron-nitride nanotubes have manifested as innovative building blocks to exploit the exceptional features of both structures simultaneously. On the other hand, by mixing with other types of materials, the fabrication of relatively large nanotubes would be feasible in the case of macroscale applications. In the current article, a nonlinear finite element formulation is employed to deal with...

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• Katarzyna Merkel dr hab.

  Osoby

  Over the past 15 years, my work has mainly been related to the study of liquid crystal compounds with a diverse structure (discotic, dendrimeric, banana, bimedogenic, uniaxial and biaxial nematics and smectics) as well as polymeric materials (biopolymers, nano-composites) and biological materials. My work concerned mainly the issues of organization, observation of orientation effects, studying the dynamics of molecular processes...

• Sprzętowa implementacja transformacji Hougha w czasie rzeczywistym

  Publikacja

  • P. Kowalski
  • R. Smyk

  - Poznan University of Technology Academic Journals. Electrical Engineering - Rok 2021

  W artykule przedstawiono implementację sprzętową w FPGA algorytmu do wykrywania kształtów aproksymowanych zbiorem linii prostych podczas przetwarzania obrazu cyfrowego w czasie rzeczywistym. W opracowanej strukturze sprzętowej podniesiono efektywność przetwarzania poprzez zastosowanie przetwarzania przepływowego, lookup table, wykorzystanie wyłącznie arytmetyki liczb całkowitych oraz rozproszenie pamięci głosowania. Eksperymentalnie...

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• TiO2-potential zeta in water

  Dane Badawcze

  open access

  • B. Tryba
  • P. Rychtowski

  Data contain results from measurements of zeta potential for powdered TiO2 in a diluted aqueous solution. The measurements were performed in Zetasizer Nano ZS analyser.

• Chemistry and Nanochemistry 2022.

  Kursy Online

  • M. Prześniak-Welenc
  • M. Bobrowski

  The course consists of lectures (15 x 2 hours) and laboratories (5 x 3 hours).The goal of this course is to teach general chemistry and adequately apply it to nano-size systems, their synthesis and analysis. An emphasis is laid on an analysis of electronic structure of molecules and prediction of  resulting properties and reasons of consequent behaviour in chemical reactions. The course also encloses laboratory classes, where the...

• TiO2-zeta potential

  Dane Badawcze

  open access

  • B. Tryba
  • P. Rychtowski

  Data contain results from the measurements of zeta potential of TiO2 versus pH. Data are saved as original files and in the format of Excel file. measurements were perfomed in Zetasizer Nano ZS with using Multi-Purpose Titrator MPT-2. 

• Balanand Santhosh Ph.D.

  Osoby

  Dr. Balanand Santhosh, obtained his Ph.D. (cum laude) in Materials, Mechatronics and Systems engineering from the Department of Industrial Engineering, University of Trento, Italy. He is currently working as Research Assistant Professor at Gdansk Univerity of Technology, Poland. Formerly he was working as a post-doctoral researcher at University of Trento, Italy. His research expertise is mainly in the area of ceramic processing...

• Testing HIADAC high impedance analyzer in cooperation with Road and Bridge Research Institute on nano-nickel based coating using 2-wire probe sample 2

  Dane Badawcze

  open access

  • G. Lentka
  • J. Bordziłowski
  • J. Hoja

  - seria: HIADAC testing in cooperation with Road and Bridge Research Institute

  The dataset presents impedance spectrum of  nano-nickel based coating sample 2. This object was used to test high-impedance analyzer for diagnostic of anticorossion coatings (HIADAC) realized in the frame of Eureka project E!3174.  The impedance spectrum frequency range (0.1 Hz – 100 kHz) was selected in order to test the whole measureement range of...

• Testing HIADAC high impedance analyzer in cooperation with Road and Bridge Research Institute on nano-nickel based coating using 2-wire probe sample 1

  Dane Badawcze

  open access

  • G. Lentka
  • J. Bordziłowski
  • J. Hoja

  - seria: HIADAC testing in cooperation with Road and Bridge Research Institute

  The dataset presents impedance spectrum of  nano-nickel based coating sample 1. This object was used to test high-impedance analyzer for diagnostic of anticorossion coatings (HIADAC) realized in the frame of Eureka project E!3174.  The impedance spectrum frequency range (0.1 Hz – 100 kHz) was selected in order to test the whole measureement range of...

• Scanning electron microscopy (SEM) images of the boron-doped carbon nanowalls surfaces

  Dane Badawcze

  open access

  • M. Ficek
  • R. Bogdanowicz
  • J. Ryl

  The dataset contains the scanning electron micrographs (SEM), revealing the surface morphology of boron-doped carbon nanowalls electrodes on silicon substrates. The surface is characterized by nano-walled structures. The obtained electrodes were doped with boron at the level of [B]/[C] = 5000ppm  in the gas atmosphere during the synthesis.

• Scanning electron microscopy (SEM) images of the boron-dopied carbon nanowalls surfaces

  Dane Badawcze

  open access

  • M. Ficek
  • R. Bogdanowicz
  • J. Ryl

  The dataset contains the scanning electron micrographs (SEM), revealing the surface morphology of boron-doped carbon nanowalls electrodes on silicon substrates. The surface is characterized by nano-walled structures. The obtained electrodes were doped with boron at the level of [B]/[C] = 1200ppm  in the gas atmosphere during the synthesis.

• Scanning electron microscopy (SEM) images of the boron-doped carbon nanowalls surfaces

  Dane Badawcze

  open access

  • M. Ficek
  • R. Bogdanowicz
  • J. Ryl

  The dataset contains the scanning electron micrographs (SEM), revealing the surface morphology of boron-doped carbon nanowalls electrodes on silicon substrates. The surface is characterized by nano-walled structures. The obtained electrodes were doped with boron at the level of [B]/[C] = 2000ppm  in the gas atmosphere during the synthesis.

• 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...

• The results of the assessment of the degree of deacetylation, antimicrobial activity and cytotoxicity of chitosan materials

  Dane Badawcze

  open access

  • S. Mania
  • A. Banach-Kopeć
  • K. Staszczyk
  • J. Kulesza
  • E. Augustin
  • R. Tylingo

  Dane prezentują wyniki pomiarowe stopnia deacetylacji 5 komerycjnych chitozanów, które przetwarzane dwiema metodami oceniono pod kątem  aktywności przeciwdrobnoustrojowej i cytotoksyczności względem modelowej linii fibroblastów mysich L929. Ocenie porównawczej poddano materiały chitozanowe otrzymywane klasyczną metodą rozpuszczania w roztworze...

• Marek Czachor prof. dr hab.

  Osoby

  Instytut Fizyki i Informatyki Stosowanej

• JOURNAL OF MOLECULAR STRUCTURE

  Czasopisma

  ISSN: 0022-2860 , eISSN: 1872-8014

• Micro‑ and nano‑ bentonite to improve the strength of clayey sand as a nano soil‑improvement technique

  Publikacja

  • M. Cheraghalikhani
  • H. Niroumand,
  • L. Bałachowski

  - Scientific Reports - Rok 2023

  Nano-additives results in the formation of nano-cementation (NC). This process is recently used to improve the durability of various building materials. NC used to improve the strength of untreated soil materials, also known as nano soil-improvement (NSI). In few years, the role of nano-additives in various types of soils were developed. In this research, the role of micro- and nano- size of bentonite as soil stabilizer was evaluated...

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• ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE

  Czasopisma

  ISSN: 1600-5368

• Paweł Możejko dr hab.

  Osoby

  Instytut Fizyki i Informatyki Stosowanej, Zakład Fizyki Zderzeń Elektronowych

• Ferromagnetic nanoparticles imaging by means of Magnetic Force Microscopy

  Dane Badawcze

  open access

  • A. Zieliński
  • J. Ryl

  - seria: Scanning Probe Microscopies data

  Ferromagnetic nanoparticles can be used as building blocks for advanced thin film magnets, and can also be used in data storage and biomedical technologies. Nano-crystalline ferrites with the chemical formula NixZn (1 - x) Fe2O4, where x = 0, 0.2, 0.4, 0.6, 0.8, 1.0 show anti-corrosion properties and suppress electromagnetic interference, in the case...

• Mechanics of Micro- and Nano-Size Materials and Structures

  Publikacja

  • M. Malikan
  • S. Dastjerdi

  - Rok 2022

  Nanotechnology knowledge is always looking to expand its boundaries to achieve the mostsignificant benefit to human life and meet the growing needs of today. In this case, we can refer tomicro- and nanosensors in micro/nano-electromechanical systems (MEMS/NEMS). These electricaldevices can detect minimal physical stimuli up to one nanometer in size. Today, micro/nano-sensordevices are widely used in the...

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• Nano soil improvement technique using cement

  Publikacja

  • H. Niroumand,
  • L. Bałachowski
  • R. Parviz

  - Scientific Reports - Rok 2023

  Nano soil-improvement is an innovative idea in geotechnical engineering. Nanomaterials are among the newest additives that improve soil properties. Herein, laboratory tests, such as unconfined compressive strength, direct shear test, and initial tests, were conducted to investigate the geotechnical properties of Kelachay clay with micro- and nanosized cement to evaluate its particles in untreated soil and observe changes in the...

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• Ionic liquids for nano- and microstructures preparation. Part 1: Properties and multifunctional role

  Publikacja

  • J. Łuczak
  • M. Paszkiewicz
  • A. Krukowska
  • A. Malankowska
  • A. Zaleska-Medynska

  - ADVANCES IN COLLOID AND INTERFACE SCIENCE - Rok 2016

  Ionic liquids (ILs) are a broad group of organic salts of varying structure and properties, used in energy conversion and storage, chemical analysis, separation processes, as well as in the preparation of particles in nano- and microscale. In material engineering, ionic liquids are applied to synthesize mainly metal nanoparticles and 3D semiconductor microparticles. They could generally serve as a structuring agent or as a reaction...

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• Electrochemicalsynthesis of 3D nano-/micro-structured porous polypyrrole

  Publikacja

  • K. Cysewska
  • J. Karczewski
  • P. Jasiński

  - MATERIALS LETTERS - Rok 2016

  In this work, electrosynthesis of electroactive, 3D nano-/micro-structured porous polypyrrole film is presented. The PPy film was synthesized potentiostatically in a one-step process from aqueous solution of pyrrole and lithium perchlorate. The growth mechanism of such structure included: the formation of typical globular PPy film, followed by the formation of the PPy fibers, which then took part in the formation of 3D highly porous...

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• NANO

  Czasopisma

  ISSN: 1793-2920 , eISSN: 1793-7094

• Open tubular trapping - present and future prospects

  Publikacja

  • A. Kloskowski
  • W. Chrzanowski
  • M. Pilarczyk
  • J. Namieśnik

  - Trends in Chromatography - Rok 2006

  Otwarte pułapki kapilarne posiadają pewne unikalne właściwości, które ułatwiają ich zastosowanie zarówno w analizie próbek gazowych jak i wodnych - na przykład niskie opory przepływu umożliwiają ich bezpośrednie połączenie z większością technik rozdzielania chromatograficznego. W pracy opisano etapu rozwoju OTT na przestrzeni ostatnich kilkunastu lat, ze szczególnym uwzględnieniem aspektów technologii ich wytwarzania oraz sposobów...

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• Micro- and nano-level of bio-joint lubrication = Smarowanie biołożysk na poziomie mikro i nano

  Publikacja

  • K. Wierzcholski
  • S. Chizhik

  - TRIBOLOGIA - Rok 2006

  Smarowanie stawów człowieka koncentruje się w głównej mierze na tarciu granicznym oraz na tarciu mieszanym w cienkiej warstwie cieczy synowialnej zalegającej pomiędzy łatwo odkształcalnymi powierzchniami miękkiej chrząstki stawowej, na której wysokości chropowatości zmieniają się z czasem trwania procesu smarowania.Wartości sił tarcia granicznego ulegają zmianie w przypadku zmian wysokości nierówności dochodzących do dziesiątych...

• Ionic liquids for nano- and microstructures preparation. Part 2: Application in synthesis

  Publikacja

  • J. Łuczak
  • M. Paszkiewicz
  • A. Krukowska
  • A. Malankowska
  • A. Zaleska-Medynska

  - ADVANCES IN COLLOID AND INTERFACE SCIENCE - Rok 2016

  Ionic liquids (ILs) are widely applied to prepare metal nanoparticles and 3D semiconductor microparticles. Generally, they serve as a structuring agent or reaction medium (solvent), however it was also demonstrated that ILs can also play a role of a co-solvent, metal precursor, reducing as well as surface modifying agent. The crucial role and possible types of interactions between ILs and growing particles have been presented in...

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• Fatigue fracture surface metrology of thin-walled tubular austenitic steel specimens after asynchronous loadings

  Publikacja

  • W. Macek
  • Ł. Pejkowski
  • R. Branco
  • R. Masoudi Nejad
  • K. Żak

  - ENGINEERING FAILURE ANALYSIS - Rok 2022

  This paper aims to study the effect of asynchronous axial-torsional strain-controlled loading histories on fracture surface behavior of thin-walled tubular X5CrNi18-10 (304/304L) austenitic steel specimens. Tests under pure axial loading and pure torsional loading are also conducted to better segregate the effect of multiaxiality. The fractures surface topographies were examined through the profiles over the entire surface with...

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• JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS

  Czasopisma

  ISSN: 0739-1102 , eISSN: 1538-0254

• Nano-Structures and Nano-Objects

  Czasopisma

  eISSN: 2352-507X

• Manufacturing of resistant joints by rolling for light tubular structures

  Publikacja

  • W. Przybylski
  • J. Wojciechowski
  • A. Klaus
  • M. Marré
  • M. Klleiner

  - INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY - Rok 2008

  Koncepcja łączenia aluminiowych elementów rurowych z zastosowaniem nagniatania plastycznego jest alternatywą do istniejących metod łączenia przez spawanie i skręcanie. W artykule prezentowane są oryginalne wyniki badań wpływu parametrów nagniatania wewnętrznego i zewnętrznego oraz różnych postaci powierzchni łączonych na wytrzymałość złącza (aluminium-aluminium) pod wpływem rozciągających sił osiowych.Badania przeprowadzono na...

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• Nano-structured Pt embedded in acidic salts of heteropolymolybdate matrices: MS EXAFS study

  Publikacja

  • A. Witkowska
  • S. Dsoke
  • R. Marassi
  • A. DiCicco

  - NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS - Rok 2015

  A structural study of Pt nano-catalysts is presented in the paper. The innovation in the case of the considered catalytic materials resides in the use a meso-microporous inorganic matrix of heteropolyacid salt of composition X2.5H0.5YMo12O40 where X = Rb, Cs and Y = P, Si as a catalyst support. Metallic nanoparticles were created by platinum ions reduction in a hot H2/Argon stream and were mainly located into matrix pores. As the...

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• NANO LETTERS

  Czasopisma

  ISSN: 1530-6984 , eISSN: 1530-6992

• Experiments on compression ignition engine powered by nano-fuels

  Publikacja

  • J. Cieśliński
  • J. Krzyżak
  • J. Kropiwnicki
  • Z. Kneba

  - Combustion Engines - Rok 2022

  The use of nanoparticles in fuels provides new opportunities for modification of fuel properties, which may affect the operational parameters of engines, in particular the efficiency and fuel consumption. The paper presents comparison of compression ignition engine performance fuelled with neat diesel and nano-diesel. Alumina (Al2O3) was used as nanoparticles. Surface-active substances, including Span 80 surfactant, as well as...

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• Design and characterization of apatite La9.8Si5.7Mg0.3O26±δ-based micro-tubular solid oxide fuel cells

  Publikacja

  • S. Wang
  • Y. Hsu
  • P. Hsia
  • W. Hung
  • P. Jasiński

  - JOURNAL OF POWER SOURCES - Rok 2020

  In this study, electrolyte-supported (Cell A) and anode-supported (Cell B) micro-tubular solid oxide fuel cells (SOFCs) based on the La9.8Si5.7Mg0.3O26±δ (LSMO) electrolyte is built through an extrusion and dip-coating processes. The formulations and process conditions for these cells are established and optimized. Both cell configurations show no visible delamination or cracking, and reaction zones and inter-diffusion of any species...

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• Stratification of nano-pigments in anti-corrosive coatings by means of magnetic field

  Publikacja

  • A. Miszczyk
  • K. Darowicki

  - PROGRESS IN ORGANIC COATINGS - Rok 2020

  The concept of self-stratification of coatings, although attractive, causes difficulties in its practical use, especially when pigments are added to the resins. An alternative way of obtaining a multilayer structure in a single step was presented. Using the inhomogeneous magnetic field and magnetically active components of the coating, the possibility of vertically graded differentiation of the one layer properties has been verified....

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• PROTEINS-STRUCTURE FUNCTION AND BIOINFORMATICS

  Czasopisma

  ISSN: 0887-3585 , eISSN: 1097-0134

• Protective and Suppressing Electromagnetic Interference Properties of Epoxy Coatings Containing Nano-Sized NiZn Ferrites

  Publikacja

  • A. Miszczyk

  - Frontiers in Materials - Rok 2020

  Nano-crystalline ferrites with the chemical formula NixZn(1−x)Fe2O4, where x = 0, 0.2, 0.4, 0.6, 0.8, 1.0, were synthesized using a co-precipitation method. The obtained ferrites were investigated by X-ray diffraction (XRD). The corrosion inhibiting behavior of nano-sized ferrites was tested using carbon steel samples and 10% aqueous ferrite extracts. Results were compared with previous data obtained for micro-sized ceramic ferrites....

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• Word Structure

  Czasopisma

  ISSN: 1750-1245 , eISSN: 1755-2036

• Electronic Structure

  Czasopisma

  ISSN: 2516-1075

• Structure and Bonding

  Czasopisma

  ISSN: 0081-5993

• Properties of nano-Fe3O4 incorporated epoxy coatings from Cure Index perspective

  Publikacja

  • M. Jouyandeh
  • N. Rahmati
  • E. Movahedifar
  • B. Hadavand
  • Z. Karami
  • M. Ghaffari
  • P. Taheri
  • E. Bakhshandeh
  • H. Vahabi
  • M. Ganjali... i 2 innych

  - PROGRESS IN ORGANIC COATINGS - Rok 2019

  The mission of an advanced epoxy-based nanocomposite coating is to provide a given substrate with protection against an unwelcome guest; e.g. corrosive molecules/media, environmental stress, flame, thermal degradation or microorganisms. In such systems, the degree to which superior properties can be guaranteed depends on the state of network formation in the epoxy in the presence of nanoparticles. For low-filled epoxy nanocomposite coatings,...

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• Polymeric materials in medicine – structure and desing 2023/24

  Kursy Online

  • I. Koss-Mikołajczyk
  • A. Sommer
  • H. Staroszczyk

• Preparaty na bazie nano- i mikrodiamentów do operacji docierania i polerowania.

  Publikacja

  • A. Barylski
  • A. Bakoń

  - Mechanik - Rok 2014

  W artykule przedstawiono preparaty na bazie nano- i mikrodiamentów do docierania i polerowania. Zaprezentowano preparaty z luźno związanymi diamentami: pasty, zawiesiny, aerozole.

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• Temperature and potential-dependent structural changes in Pt cathode electrocatalyst viewed by in situ XAFS

  Publikacja

  • A. Witkowska
  • E. Principi
  • A. Di Cicco
  • S. Dsoke
  • R. Marassi
  • L. Olivi
  • M. Centazzo
  • V. Rossi Albertini

  - JOURNAL OF NON-CRYSTALLINE SOLIDS - Rok 2008

  W pracy przedstawiono wyniki badań widm absorpcji promieniowania rentgenowskiego nano-platyny używanej jako katalizator w katodach polimerowych ogniw paliwowych (PEM FC). Badania XAFS realizowane były w warunkach pracy ogniwa paliwowego. Wysokiej jakości widma, uzyskane za pomocą specjalnie przygotowanej do pomiarów XAFS in situ komórki FC, umożliwiły przeprowadzenie zaawansowanej analizy obrazującej zmiany w lokalnej strukturze...

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• Ultra thick open tubular traps with an increased inner diameter.

  Publikacja

  • J. Pettersson
  • F. Aldaeus
  • A. Kloskowski
  • J. Roeraade

  - Rok 2004

  Przeanalizowano zagadnienia związane z zastosowaniem otwartych pułapek kapilarnych z grubym nieregularnym filmem polidimetylosiloksanu do wzbogacania lotnych związków organicznych. Przeprowadzone rozważania teoretyczne oraz prace eksperymentalne wykazały, że zwiększenie średnicy wewnętrznej pułapek może znacząco polepszyć ich właściwości. Dla danego natężenia przepływu próbki oraz danego stosunku objętości faz w pułapce, liczba...

• The application of an open tubular trap in analysis of organic air pollutants

  Publikacja

  • M. Dudek
  • L. Wolska
  • M. Pilarczyk
  • B. Zygmunt
  • J. Namieśnik

  - CHEMOSPHERE - Rok 2002

  Opisano możliwości wykorzystania odcinka handlowej kapilarnej kolumny chromatograficznej do pobierania próbek analitów z powietrza w celu ich chromatograficznego oznaczenia. Opracowany sposób opary jest na wykorzystaniu techniki równowagowej. Stężenia analitów w badanym medium mogą być obliczone na podstawie znajomości wartości odpowiednich współczynników podziału wyznaczonych w trakcie badań modelowych.