Wyniki wyszukiwania dla: azobenzocrown ethers

• Characterizing the Performance of <span class="sc">xor</span> Games and the Shannon Capacity of Graphs

  Publikacja

  • R. Ramanathan
  • A. Kay
  • G. Murta
  • P. Horodecki

  - PHYSICAL REVIEW LETTERS - Rok 2014

  In this Letter we give a set of necessary and sufficient conditions such that quantum players of a two-party xor game cannot perform any better than classical players. With any such game, we associate a graph and examine its zero-error communication capacity. This allows us to specify a broad new class of graphs for which the Shannon capacity can be calculated. The conditions also enable the parametrization of new families of games...

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• Analysis of an Attenuator Artifact in an Experimental Attack by Gunn–Allison–Abbott Against the Kirchhoff-Law–Johnson-Noise (KLJN) Secure Key Exchange System

  Publikacja

  • L. B. Kish
  • Z. Gingl
  • R. Mingesz
  • J. Smulko

  - FLUCTUATION AND NOISE LETTERS - Rok 2015

  A recent paper by Gunn–Allison–Abbott (GAA) [L. J. Gunn et al., Scientific Reports 4 (2014) 6461] argued that the Kirchhoff-law–Johnson-noise (KLJN) secure key exchange system could experience a severe information leak. Here we refute their results and demonstrate that GAA’s arguments ensue from a serious design flaw in their system. Specifically, an attenuator broke the single Kirchhoff-loop into two coupled loops, which is an...

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• Polarization-sensitive optical coherence tomography for ceramic materials inspection

  Publikacja

  • M. Trojanowski
  • M. Kraszewski
  • M. Strąkowski
  • B. Kosmowski
  • J. Pluciński

  - Photonics Letters of Poland - Rok 2014

  Ceramics production is looking for a fast, reliable and non-destructive method that can be implemented on site for defect detection and analysis. In this paper we present polarization-sensitive optical coherence tomography (PS-OCT) as a method for defect inspection. Proposed extensions to standard OCT provide additional information for complete characterization of tested object. We compare OCT and microscope imaging that can easily...

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• Fabrication and characterization of anode supported solid oxide fuel cells

  Publikacja

  • S. Kosedowski
  • S. Molin
  • P. Jasiński

  - Functional Materials Letters - Rok 2011

  W tej pracy, napylanie aerozolowe zawiesiny proszków jest oceniane jako metoda osadzania cienkich elektrolitów tlenkowych ogniw paliwowych. Metoda ta jest tania, prosta i mam zalety w stosunku do szeroko stosowanej metody sitodruku. Wpływ parametrów osadzania: stężenie zawiesiny, ciśnienie robocze są w artykule omawiane.

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• Electron impact fragmentation of pyrrole molecules studied by fluorescence emission spectroscopy

  Publikacja

  • T. J. Wąsowicz
  • I. Linert
  • I. Lachowicz
  • M. Zubek

  - Photonics Letters of Poland - Rok 2011

  The fluorescence emission spectroscopy using electron impact excitation technique was employed to study fragmentation processes of the gas phase pyrrole molecules. The following excited fragmentation species were observed by detection of their fluorescence decay: the atomic hydrogen H(n), n = 4-7 and the diatomic CH(A2Δ), CN(B2Σ+), NH(A3Π) and C2(d3Πg) fragments. These atomic and molecular products differ from those previously...

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• Diffusion length of singlet excitons in copper phthalocyanine films

  Publikacja

  • R. Signerski
  • G. Jarosz

  - Photonics Letters of Poland - Rok 2011

  Praca przedstawia metodę określania długości drogi dyfuzji ekscytonów w oparciu o widmo fotoprądu. W pracy podana jest szacunkowa wartość drogi dyfuzji ekscytonów singletowych w próżniowo naparowanej warstwie ftalocyjaniny miedzi.

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• Spectroscopic analysis for polarization sensitive optical coherent tomography

  Publikacja

  • M. Strąkowski
  • J. Pluciński
  • B. Kosmowski

  - Photonics Letters of Poland - Rok 2011

  W artykule przedstawiono właściwości oraz ograniczenia optycznej tomografii koherentnej z analizą stanu polaryzacji promieniowania optycznego. Zaproponowano nową spektroskopową metodę analizy sygnału pomiarowego w PS-OCT oraz przedstawiono i omówiono zalety nowego rozwiązania na bazie uzyskanych wyników pomiarowych.

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• Photophysics and Halide Quenching of Soret-excited ZnTPPS4- in Aqueous Media

  Publikacja

  • J. Szmytkowski
  • S. M. Brunet
  • U. Tripathy
  • J. A. O'Brien
  • M. F. Paige
  • R. P. Steer

  - CHEMICAL PHYSICS LETTERS - Rok 2011

  Steady state S2-S0 and S1-S0 absorption and emission spectra and picosecond S2 decay and S1 fluorescence rise times have been measured for the model porphyrin ZnTPPS4− in water and in aqueous iodide solutions of constant ionic strength. The dynamics of S1 quenching by iodide are well-modeled by a Stern-Volmer mechanism yielding kQ = 1.75 × 109 M−1 s−1. The S2 state is quenched on a ps time scale by a static electron-transfer mechanism...

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• Analysis of the image force effects on the recombination at the donor-acceptor interface in organic bulk heterojunction solar cells

  Publikacja

  • J. Szmytkowski

  - CHEMICAL PHYSICS LETTERS - Rok 2009

  We consider the influence of image force effects on the recombination at the donor-acceptor interface in organic bulk heterojunction solar cells. The conclusion is that the charge carriers of one sign located in the material with lower permittivity recombine at the boundary between donor and acceptor phases. This process competes with the recombination of opposite sign charge carriers, leading to the reduction of the Langevin-type...

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• Fragmentation of isoxazole molecules by electron impact in the energy range 10-85 eV

  Publikacja

  • I. Linert
  • I. Lachowicz
  • T. J. Wąsowicz
  • M. Zubek

  - CHEMICAL PHYSICS LETTERS - Rok 2010

  Badano fragmentację cząsteczek isoxazolu w zderzeniach z elektronami metodą wzbudzenia optycznego. Obserwowano linie wzbudzonego wodoru z serii Balmera oraz pasma emisyjne fragmentów CH oraz CN. Zmierzono bezwzględne wartości emisyjnych przekrojów czynnych.

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• Pool boiling of water-Al2O3 and water-Cu nanofluids on horizontal smooth tubes

  Publikacja

  • J. Cieśliński
  • T. Kaczmarczyk

  - Nanoscale Research Letters - Rok 2011

  Przedstawiono wyniki pomiarów współczynnika przejmowania ciepła podczas wrzenia dwóch nanocieczy, tj. woda-Al2O3 i woda-Cu o trzech koncentracjach masowych nanocząstek: 0.01%,0.1% oraz 1% na poziomych gładkich rurkach ze stali nierdzewnej i miedzi o średnicy zewnętrznej 10 mm.

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• Hetero-junction composed of poly(3,4-ethylenedioxythiophene) with poly(styrenesulphonate) and iodine doped titanium dioxide

  Publikacja

  • K. Siuzdak
  • A. Lisowska-Oleksiak

  - Functional Materials Letters - Rok 2011

  Praca prezentuje nowe objętościowe heterozłacze typu p-n, gdzie domieszkowany jodem ditlenek tytanu (I-TiO2) pełni rolę elementu n, a poli(3,4-etylenodioksytiofen):poli(etylenosulfonian)(pEDOT:PSS)rolę elementu p. Heterozłącze zostało otrzymane na drodze potencjostatycznej polimeryzacji monomeru w obecnosci nanoproszku I-TiO2 zawieszonego w elektrolicie. Metoda pozwala na otrzymanie warstw hybrydowych, gdzie cząstki I-TiO2 są wbudowane...

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• Organic-inorganic materials for fast charging-discharging processes in energy storage devices

  Publikacja

  • M. Wilamowska-Zawłocka
  • A. Mietlińska
  • A. Lisowska-Oleksiak
  • R. Riedel

  - Functional Materials Letters - Rok 2011

  Praca dotyczy materiału kompozytowego złożonego z poli(3,4-etylenodioksytiofenu) i heksacyjanokobaltanu żelaza. Materiał został otrzymany elektrochemicznie bezpośrednio na elektrodzie tytanowej metodą jednoetapowa z zawiesiny zawierającej monomer (EDOT) oraz Fe3[Co(CN)6]2 w postaci proszku. Warstwy pEDOT/FehcCo otrzymane potencjostatycznie ładunkiem od 0,6 do 1,5 C/cm2 charakteryzują się różną grubością (od 1,9 do 4 μm) zależną...

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• Electrochemical activity of composite material poly(3,4-ethylenedioxythiophene) modified by silver hexacyanoferrate

  Publikacja

  • A. Nowak
  • A. Lisowska-Oleksiak

  - Functional Materials Letters - Rok 2011

  W pracy przedstawiono sposób slektrochemicznj syntezy materiału składającego się z polimeru przewodzącego poli(3,4-etylenodioksytiofen) (pEDOT) i nieorganicznej sieci typu redox heksacyjanożelazianu srebra (Aghcf). Materiał otrzymano na drodze dwuetapowej. Etap pierwszy polega na galwanostatycznej redukcji srebra na elektrodzie z węgla szklistego. Etap drugi to roztwarzanie srebra z jednoczesną polimeryzacją monomeru. Otrzymany...

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• Ellipsometric study of carbon nitride films deposited by DC-magnetron sputtering

  Publikacja

  • A. Majumdar
  • R. Bogdanowicz
  • R. Hippler

  - Photonics Letters of Poland - Rok 2011

  We report the optical properties of a carbon nitride (CNx) film as a function of nitrogen concentration (N/C) of the deposited film. As nitrogen concentration is increased (N/C ratio) in a CNx film, the refractive index and band gap also increase. The real and imaginary parts, n and k (refractive index and extinction coefficient) of the complex refraction index of carbon nitride films were determined by spectroscopic ellipsometry...

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• Physical and mechanical properties of rigid polyurethane faoms modified with selected flame retardants or layered silicates

  Publikacja

  • Ł. Piszczyk
  • M. Danowska
  • M. Strankowski
  • I. Gibas
  • J. T. Haponiuk

  - ADVANCED COMPOSITES LETTERS - Rok 2011

  W pracy przedstawiono charakterystykę pianek poliuretanowych zawierających klasyczne środki uniepalniające oraz nanonapełniacze z grupy glinokrzemianów warstwowych. Zbadano wpływ zarówno nanonapełniaczy na bazie naturalnego montmorylonitu, jak i modyfikowanych glinokrzemianów. Uzyskane spienione poliuretanowe o zmniejszonej palności charakteryzowano z wykorzystaniem różnych technik badawczych, między innymi wykonano badania DMA,...

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• Structure of sol-gel derived Nb2O5 films for active coating devices

  Publikacja

  • B. Kościelska
  • M. S. Łapiński
  • W. Sadowski
  • M. Dęby

  - Photonics Letters of Poland - Rok 2011

  W artykule przedstawiono wyniki badań struktury cienkich warstw nb2o5 otrzymywanych metodą zol-żel. wytworzone warstwy charakteryzowano pod kątem zastosowania jako materiałów na aktywne pokrycia fotoniczne.

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• Polarization interferometer using a Liquid Crystalline Polymer waveplate for wavelength measurement

  Publikacja

  • P. Wierzba
  • A. Mazikowski

  - Photonics Letters of Poland - Rok 2015

  A two-beam polarization interferometer for measuring wavelength changes of a tunable semiconductor laser was designed, built and tested. This interferometer uses a λ/8 waveplate made from Liquid Crystalline Polymer in order to generate two output signals in quadrature. The λ/8 waveplate can be manufactured either on a beamsplitter face or on the mirror surface, reducing the cost and complexity of the optomechnical assembly. Experiment...

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• On the hardness of computing span of subcubic graphs

  Publikacja

  • R. Janczewski
  • K. Turowski

  - INFORMATION PROCESSING LETTERS - Rok 2016

  In the paper we study the problem of finding ξ-colorings with minimal span, i.e. the difference between the largest and the smallest color used.

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• Correlated Particle Motion and THz Spectral Response of Supercritical Water

  Publikacja

  • M. Śmiechowski
  • C. Schran
  • H. Forbert
  • D. Marx

  - PHYSICAL REVIEW LETTERS - Rok 2016

  Molecular dynamics simulations of supercritical water reveal distinctly different distance-dependent modulations of dipolar response and correlations in particle motion compared to ambient conditions. The strongly perturbed H-bond network of water at supercritical conditions allows for considerable translationaland rotational freedom of individual molecules. These changes give rise to substantially different infrared spectra and...

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• No Quantum Realization of Extremal No-Signaling Boxes

  Publikacja

  • R. Ramanathan
  • J. Tuziemski
  • M. Horodecki
  • P. Horodecki

  - PHYSICAL REVIEW LETTERS - Rok 2016

  The study of quantum correlations is important for fundamental reasons as well as for quantum communication and information processing tasks. On the one hand, it is of tremendous interest to derive the correlations produced by measurements on separated composite quantum systems from within the set of all correlations obeying the no-signaling principle of relativity, by means of information-theoretic principles. On the other hand,...

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• A study of the electronic states of pyrimidine by electron energy loss spectroscopy

  Publikacja

  • I. Linert
  • M. Zubek

  - CHEMICAL PHYSICS LETTERS - Rok 2015

  The electron energy loss spectra were measured in pyrimidine at the constant electron residual energy varied from 15 meV to 10 eV and in the scattering angle range 0–180°. The spectra were analysed applying an iteration fitting procedure to resolve the energy loss bands corresponding to excitation of the electronic states of pyrimidine. The vertical excitation energies of the singlet states of pyrimidine and of a number of the...

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• Similar concentration of surfactants in rural and urban areas

  Publikacja

  • E. Olkowska
  • Ż. Polkowska
  • M. Ruman
  • J. Namieśnik

  - Environmental Chemistry Letters - Rok 2015

  Since surfactants are used in various products, they end up in surface and wastewater. Surfactants may therefore impact ecosystems and living organisms. Actually, only few anionic surfactants and some alkylphenols are regulated. There is no comprehensive evaluation of surfactants in the atmosphere, surfaces and waters of areas of increasing anthropic levels. Here, we measured the levels of cationic, anionic and nonionic surfactants...

• Introduction of Pro and Its Analogues in the Conserved P1 Position of Trypsin Inhibitor SFTI-1 Retains Its Inhibitory Activity

  Publikacja

  • A. Legowska
  • D. Debowski
  • R. Lukajtis
  • E. Sztabkowska
  • A. Mizeria
  • K. Brzozowski
  • M. Wysocka
  • A. Lesner
  • K. Rolka

  - PROTEIN AND PEPTIDE LETTERS - Rok 2011

  A number of monocyclic SFTI-1 analogues modified in the conserved inhibitor P1 position by Pro, its L-hydroxyproline (Hyp) derivative as well as mimetics with different ring size were synthesized by the solid-phase method. Replacement of Ser6 by Pro, Hyp, and a four-member ring, L-azetidine-2-carboxylic acid (Aze), retained trypsin or chymotrypsin inhibitory activity. The determined association equilibrium constants of these analogues...

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• Electroabsorption in vacuum-evaporated films of bathocuproine

  Publikacja

  • W. Stampor
  • A. Tykocki-Piłat

  - Photonics Letters of Poland - Rok 2011

  W pracy zmierzono widma elektroabsorpcji (EA) dla próżniowo naparowanych warstw batokuproiny (BCP), stosowanej jako transporter elektronów i bloker dziur w organicznych diodach elektroluminescencyjnych. Widma EA zinterpretowano na podstawie teorii efektu Starka przez bezpośrednie porównanie z widmami I-szej i II-giej pochodnej współczynnika absorpcji. Wyznaczono zmiany trwałego momentu dipolowego i zmiany polaryzowalności elektronowej...

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• All Nonclassical Correlations Can Be Activated into Distillable Entanglement

  Publikacja

  • M. Piani
  • S. Gharibian
  • G. Adesso
  • J. Calsamigilia
  • P. Horodecki
  • A. Winter

  - PHYSICAL REVIEW LETTERS - Rok 2011

  We devise a protocol in which general nonclassical multipartite correlations produce a physically relevant effect, leading to the creation of bipartite entanglement. In particular, we show that the relative entropy of quantumness, which measures all nonclassical correlations among subsystems of a quantum system, is equivalent to and can be operationally interpreted as the minimum distillable entanglement generated between the system...

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• Collective Uncertainty Entanglement Test

  Publikacja

  • Ł. Rudnicki
  • P. Horodecki
  • K. Życzkowski

  - PHYSICAL REVIEW LETTERS - Rok 2011

  For a given pure state of a composite quantum system we analyze the product of its projections onto aset of locally orthogonal separable pure states. We derive a bound for this product analogous to theentropic uncertainty relations. For bipartite systems the bound is saturated for maximally entangled statesand it allows us to construct a family of entanglement measures, we shall call collectibility. As thesequantities are experimentally...

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• Experimental Extraction of Secure Correlations from a Noisy Private State

  Publikacja

  • K. Dobek
  • M. Karpiński
  • R. Demkowicz-Dobrzański
  • K. Banaszek
  • P. Horodecki

  - PHYSICAL REVIEW LETTERS - Rok 2011

  We report experimental generation of a noisy entangled four-photon state that exhibits a separation between the secure key contents and distillable entanglement, a hallmark feature of the recently established quantum theory of private states. The privacy analysis, based on the full tomographic reconstruction of the prepared state, is utilized in a proof-of-principle key generation. The inferiority of distillation-based strategies...

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• Conducting Polymer Microelectrodes Anchored to Hydrogel Films

  Publikacja

  • Y. Ido
  • D. Takahashi
  • M. Sasaki
  • K. Magamine
  • T. Miyake
  • P. Jasiński
  • M. Nishizawa

  - ACS Macro Letters - Rok 2012

  Artykuł prezentuje wytwarzanie organicznych hydrożeli z mikroelektrodami poli(3,4-ethylenedioxythiophene, PEDOT), które wykazują obniżoną rezystywność 100 Ω/□. Proces przygotowania rozpoczyna się elektroosadzania przewodzącego PEDOT (ok. 20 S/cm) na mikroelektrodach Pt. Elektrolityczne wiąże się film PEDOT z hydrożelem. Tak wytworzona struktura jest odrywana elektrycznie pd podłoża.

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• Thermoplastic polyurethane/(organically modified montmorillonite) nanocomposites produced by in situ polymerization

  Publikacja

  • M. Strankowski
  • J. Strankowska
  • M. Gazda
  • Ł. Piszczyk
  • G. Nowaczyk
  • S. Jurga

  - Express Polymer Letters - Rok 2012

  A series of polyurethane nanocomposites were synthesized from thermoplastic polyurethanes (with different hard segment ratios) and two types of organically modified montmorillonites (OMMT) - Cloisite® 10A and Cloisite® 20A. The thermal behavior was examined by non-isothermal thermogravimetry (TG, DTG), Differential Scanning Calorimetry (DSC) and Dynamic-Mechanical Thermal Analysis (DMTA). The results of X-ray analyses showed that...

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• Preparation of porous TiO2 films by means of pulsed laser deposition for photocatalytic applications

  Publikacja

  • A. Iwulska
  • G. Śliwiński

  - Photonics Letters of Poland - Rok 2011

  In this work the preparation and structure properties of porous thin films of TiO2 were investigated. The films were produced by means of the pulsed laser deposition technique using laser pulses at 266nm (10Hz) and at fluencies of 1-3.5J/cm2. The process was performed in vacuum using O2 buffer gas and films were deposited on the SiO2 glass or Si substrate. X-ray diffraction (XRD) and Raman analysis of the structure and chemical...

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• Surface layers analysis of bronze artifacts by means of laser spectroscopy techniques

  Publikacja

  • I. Żmuda-Trzebiatowska
  • G. Śliwiński

  - Photonics Letters of Poland - Rok 2011

  .

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• Stereoselective Alkylation of Indole with 5-Arylidene-Meldrum’s Acids in the Presence of Organocatalysts

  Publikacja

  • S. Makowiec
  • K. Janikowska
  • A. Zakaszewska
  • E. Najda-Mocarska

  - LETTERS IN ORGANIC CHEMISTRY - Rok 2018

  Background: Indole motif is frequently present in biologically active compounds. Enantiomerically pure or enriched 2,2-dimethyl-5-(aryl(1H-indol-3-yl)methyl)-1,3-dioxane-4,6-diones can be considered as a convenient starting point for the synthesis of a indole ring fused with cyclic ketones with biological activity. Preparation of chiral 2,2-dimethyl-5-(aryl(1H-indol-3-yl)methyl)-1,3-dioxane- 4,6-diones requires the reaction of...

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• The influence of small amount of substances present in tissue on the optical spectrum of immunosuppressive drug

  Publikacja

  • M. J. Marzejon
  • M. Szczerska

  - Photonics Letters of Poland - Rok 2018

  In this paper, we describe how commonly present in tissue substances - sodium chloride and glucose - affect the optical spectrum of an immunosuppressive drug (Cyclaid® by Apotex). Prepared samples were investigated using the spectrophotometer in the spectrum range from 250 nm to 1100 nm. The maximum wavelength shift calculated on the basis of measurement results is not bigger than the measurement wavelength step. So, it can be...

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• 1D portable optical coherence tomography system

  Publikacja

  • A. M. Kamińska
  • M. Strąkowski

  - Photonics Letters of Poland - Rok 2018

  —Imaging methods are an expanding branch of technology, which involves data acquisition and analysis of images for research and diagnostics. This paper has been devoted to the description of the optical design for a one-dimensional, portable optical coherence tomography (OCT) system. The Mach-Zehnder interferometer has been designed in the presented study. The description of the construction and applied hardware solutions have...

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• DFT studies of the refractive index of boron-doped diamond

  Publikacja

  • B. Dec
  • R. Bogdanowicz

  - Photonics Letters of Poland - Rok 2018

  The density functional theory is one of the optimal solutions in calculation of optical properties of materials on the quantum scale. In this paper, we have investigated the refractive index of a boron-doped diamond structure with the usage of Atomistic Toolkit software from Synopsys. During this study, various methods and pseudopotentials were checked to obtain an optimal performanceaccuracy method for calculation of such materials....

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• Crystal structure and physical properties of a novel ternary compound La15MoxGe9

  Publikacja

  • J. Blawat
  • W. Xie
  • R. J. Cava
  • T. Klimczuk

  - CHEMICAL PHYSICS LETTERS - Rok 2019

  We present the synthesis, structural characterization and physical properties measurements of a new compound, La15MoxGe9 in Mn5Si3-type derived structure with interstitial Mo. The sample was synthesized by arc-melting method. La15MoxGe9 crystallizes in non-centrosymmetric hexagonal structure P63mc (#186) with lattice parameters a = b = 15.495(5) Å and c = 6.917(2) Å. The refinement on single X-ray diffraction data show that interstitial...

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• Resonances and Dissociative Electron Attachment in HNCO

  Publikacja

  • M. Zawadzki
  • M. Čížek
  • K. Houfek
  • R. Čurík
  • M. Ferus
  • S. Civiš
  • J. Kočišek
  • J. Fedor

  - PHYSICAL REVIEW LETTERS - Rok 2018

  In a combined experimental and theoretical study, we probe the dissociative electron attachment in isocyanic acid HNCO. The experimental absolute cross section for the NCO− fragment shows a sharp onset and fine structures near the threshold. The autoionizing state responsible for the dissociative attachment is found in both the R-matrix calculation and using analytic continuation in the coupling constant. The involved A' resonance...

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• Connections between Mutually Unbiased Bases and Quantum Random Access Codes

  Publikacja

  • E. Aguilar Lozano
  • J. Borkała
  • P. A. Mironowicz
  • M. Pawłowski

  - PHYSICAL REVIEW LETTERS - Rok 2018

  We present a new quantum communication complexity protocol, the promise--Quantum Random Access Code, which allows us to introduce a new measure of unbiasedness for bases of Hilbert spaces. The proposed measure possesses a clear operational meaning and can be used to investigate whether a specific number of mutually unbiased bases exist in a given dimension by employing Semi--Definite Programming techniques.

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• Optical method for verification of homogeneity of phantoms for calibration of magnetic resonance

  Publikacja

  • A. Sękowska-Namiotko
  • A. M. Kamińska
  • A. Sabisz

  - Photonics Letters of Poland - Rok 2018

  The primary purpose of this study was to develop a laboratory photonic set-up for characterisation of homogeneity of gel phantoms for calibration of magnetic resonance. In this system, optical coherence tomography allows the detection of micro- and macroscopic heterogeneities of a structure. The set-up was used to perform measurements of agar and agar-carrageenan gels, which are the basis for more complex phantoms for magnetic...

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• Ab-initio study of electrical and optical properties of allylamine

  Publikacja

  • B. Dec
  • K. Pyrchla
  • R. Bogdanowicz

  - Photonics Letters of Poland - Rok 2018

  The Density functional theory is one of most promising methodology in fast and accurate calculations of electrical and optical properties from the atomic basis. In this paper, we calculate electrical and optical properties of allylamine (2-propen 1- amine) in terms of accuracy and speed of calculations obtained by selection of DFT-1/2 method with ultrasoft Vanderbilt pseudopotentials. Comparison of density of states between molecule...

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• Comparison of modelling and measurement results of spectra emitted by a programmable lamp

  Publikacja

  • M. Feldzensztajn
  • A. Mazikowski

  - Photonics Letters of Poland - Rok 2018

  Nowadays artificial light with an optimized spectrum is used in many different applications. For instance, it is widely used in museums and exhibitions to illuminate the art. Moreover, such light stimulates the growth of plants, or can be applied in industry and healthcare. To achieve the best results for each application, the adjusting of a dedicated spectrum is required, which is a complicated task. The ongoing research is focused...

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• Fiber optic microsphere with a ZnO thin film for potential application in a refractive index sensor – theoretical study

  Publikacja

  • M. Hirsch

  - Photonics Letters of Poland - Rok 2018

  Optical fiber sensors of refractive index play an important role in analysis of biological and chemical samples. This work presents a theoretical investigation of spectral response of a fiber optic microsphere with a zinc oxide (ZnO) thin film deposited on the surface and evaluates the prospect of using such a structure for refractive index sensing. A microsphere is fabricated by an optical fiber tapering method on the base of...

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• Automatic system for optical parameters measurements of biological tissues

  Publikacja

  • P. Listewnik
  • A. Mazikowski

  - Photonics Letters of Poland - Rok 2018

  In this paper a system allowing execution of automatic measurements of optical parameters of scattering materials in an efficient and accurate manner is proposed and described. The system is designed especially for measurements of biological tissues including phantoms, which closely imitate optical characteristics of real tissue. The system has modular construction and is based on the ISEL system, luminance and color meter and...

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• Studies on optical transmittance of boron-doped nanocrystalline diamond films

  Publikacja

  • A. Wieloszyńska
  • R. Bogdanowicz

  - Photonics Letters of Poland - Rok 2018

  Thickness is one of the most important parameters in many applications using thin layers. This article describes thickness determination of a boron-doped nanocrystalline diamond (NCD) grown on fused silica glass. A spectroscopic measurement system has been used. A high refractive index (2.3 at 550nm) was achieved for NCD films. The thickness of NCD samples has been determined from the transmission spectrum.

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• Impact resistance of plain and twill fabric in GFRP measured by active thermography

  Publikacja

  • G. Strugała
  • M. Landowski
  • M. Zaremba
  • J. Turowski
  • M. Szkodo

  - ADVANCED COMPOSITES LETTERS - Rok 2018

  This paper discusses the impact resistance of glass-fibre reinforced polymer (GFRP) composites depending on the type of reinforcement – plain or twill weave. The values of impact energy were: 3J, 10J and 15J. Specimens featuring twill weave transferred higher force during the impact as compared with plain weave specimens. It was observed that an increase of impact energy was accompanied by an increase of the disproportion in...

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• Enhanced Mobility and Large Linear Nonsaturating Magnetoresistance in the Magnetically Ordered States of TmNiC2

  Publikacja

  • K. Kolincio
  • M. Roman
  • T. Klimczuk

  - PHYSICAL REVIEW LETTERS - Rok 2020

  We have studied the magnetic, magnetotransport, and galvanomagnetic properties of TmNiC2. We find that the antiferromagnetic and field induced metamagnetic and ferromagnetic orderings do not suppress the charge density wave. The persistence of Fermi surface pockets, open as a result of imperfect nesting accompanying the Peierls transition, results in an electronic carriers mobility of the order of 4 × 103 cm2 V−1 s−1 in ferromagnetic...

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• Novel Class of Proton Conducting Materials—High Entropy Oxides

  Publikacja

  • M. Gazda
  • T. Miruszewski
  • D. Jaworski
  • A. D. Mielewczyk-Gryń
  • W. Skubida
  • S. L. Wachowski
  • P. Winiarz
  • K. Dzierzgowski
  • M. S. Łapiński
  • I. Szpunar
  • E. Dzik

  - ACS Materials Letters - Rok 2020

  Here, for the first time, we present data on proton conductivity of high-entropy, single-phase perovskites. The BaZr0.2Sn0.2Ti0.2Hf0.2Ce0.2O3−δ, BaZr0.2Sn0.2Ti0.2Hf0.2Y0.2O3−δ, BaZr1/7Sn1/7Ti1/7Hf1/7Ce1/7Nb1/7Y1/7O3−δ, and BaZr0.15Sn0.15Ti0.15Hf0.15Ce0.15Nb0.15Y0.10O3−δ single-phase perovskites were synthesized. Before electrical measurements, materials were characterized using X-ray diffraction (XRD), scanning electron microscopy...

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• Equivalence of equicontinuity concepts for Markov operators derived from a Schur-like property for spaces of measures

  Publikacja

  • S. C. Hille
  • T. Szarek
  • D. Worm
  • M. Ziemlańska

  - STATISTICS & PROBABILITY LETTERS - Rok 2021

  Various equicontinuity properties for families of Markov operators have been – and still are – used in the study of existence and uniqueness of invariant probability for these operators, and of asymptotic stability. We prove a general result on equivalence of equicontinuity concepts. It allows comparing results in the literature and switching from one view on equicontinuity to another, which is technically convenient in proofs....

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• Stability and phase transition investigation of olanzapine polymorphs

  Publikacja

  • J. Tang
  • Y. Han
  • I. Ali
  • H. Luo
  • A. Nowak
  • J. Li

  - CHEMICAL PHYSICS LETTERS - Rok 2021

  We use electrical embedded-fragment QM method with both DFT/ωB97XD/6-31G* and MP2/6-31G* to investigate the phase transformations of olanzapine. Gibbs free energy calculations predict that form I is always the most stable structure and form II is the least stable one, while form IV is more stable than form III below about 200 K but less stable above this temperature, implying a polymorphic phase transformation. This may account...

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