Wyniki wyszukiwania dla: ELECTRONIC PROPERTIES - MOST Wiedzy

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Wyniki wyszukiwania dla: ELECTRONIC PROPERTIES

Wyniki wyszukiwania dla: ELECTRONIC PROPERTIES

  • Internet entrepreneurship in electronic business

    Publikacja

    - Rok 2008

    Zaproponowano klasyfikację przedsięwzięć Internetowych. Zaprezentowano szereg reprezentatywnych przykładów. Wyszczególniono poszczególne etapy rozwoju działalności gospodarczej w Internecie. Zwrócono uwagę zarówno na aspekty technologiczne, jak i formy pozyskiwania kapitału inwestycyjnego podwyższonego ryzyka. Artykuł może stanowić źródło odniesienia dla przedsiębiorców pragnących otworzyć działalność gospodarczą w Internecie lub...

  • Electronic nose - idea and applications

    Publikacja

    - Rok 2011

    Przedstawiono koncepcję nosa elektronicznego, z wykorzystaniem pomiarów i analizy zjawisk fluktuacyjnych w rezystancyjnych czujnikach gazów. Przybliżono problemy pomiarów szumów m.cz. oraz sposoby ich analizy. Opisano szereg przykładowych zastosowań takiego urządzenia.

  • Crystal structure and physical properties of new Ca2TGe3 (T = Pd and Pt) germanides

    Publikacja

    The crystallographic, electronic transport and thermal properties of Ca2PdGe3 and Ca2PtGe3 are reported. The compounds crystalize in an ordered variant of the AlB2 crystal structure, in space group P6/mmm, with the lattice parameters a = 8.4876(4) Å/8.4503(5) Å and c = 4.1911(3) Å/4.2302(3) Å for Ca2PdGe3 and Ca2PtGe3, respectively. The resistivity data exhibit metallic behavior with residual-resistivity-ratios (RRR) of 13 for...

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  • Synthesis and physical properties of the 10.6 K ferromagnet NdIr3

    Publikacja

    - PHYSICAL REVIEW B - Rok 2019

    The magnetic, transport, and thermodynamic properties of NdIr3 are reported. Its PuNi3-type crystal structure (space group R−3m), with lattice parameters a= 5.3262(1)Å and c=26.2218(3)Å, was confirmed by powder x-ray diffraction. Our measurements indicate that NdIr3 exhibits a previously unreported paramagnetic to ferromagnetic phase transition below TC=10.6 K(determined by using the Arrott plot). The magnetic susceptibility obeys...

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  • Application of ionic liquids in electronic nose instruments

    Publikacja

    - Rok 2016

    Among many applications in different fields of science and technology the ionic liquids (ILs) are also utilised in chemical sensors yielding improvement of their operation parameters (Buzzeo, 2004; Wei and Ivaska, 2008; Silvester, 2011; Gebicki et al., 2013). Some of these chemical sensors are the components of the devices, which resemble human sense of smell as far as their operation is concerned. These devices are named electronic...

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  • Structural and electrical properties of titanium-doped yttrium niobate

    In this work, the influence of the substitution of niobium by titanium in Y3Nb1-xTixO7-δ on the structural and electrical properties is reported. Several experimental techniques, i.e. X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), X-Ray Photoelectron Spectroscopy (XPS) and Electrochemical Impedance Spectroscopy (EIS), were applied to investigate the system Y3Nb1-xTixO7-δ. Titanium in Y3Nb1-xTixO7-δ is an acceptor-type...

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  • Machine Learning and Electronic Noses for Medical Diagnostics

    Publikacja

    The need for noninvasive, easy-to-use, and inexpensive methods for point-of-care diagnostics of a variety of ailments motivates researchers to develop methods for analyzing complex biological samples, in particular human breath, that could aid in screening and early diagnosis. There are hopes that electronic noses, that is, devices based on arrays of semiselective or nonselective chemical sensors, can fill this niche. Electronic...

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  • Electronic Noses for Indoor Air Quality Assessment

    This chapter presents a proposal of the use of electronic noses in the monitoring of indoor air quality. The main focus is put on the detailed characteristics of today’s indoor air quality control methods, the types of pollution in the air, and the development of electronic noses for air testing. Currently, scientists seek methodological and structural solutions that would enable real-time online indoor air control. It has been...

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  • An electronic nose for quantitative determination of gas concentrations

    Publikacja

    The practical application of human nose for fragrance recognition is severely limited by the fact that our sense of smell is subjective and gets tired easily. Consequen tly, there is considerable need for an instrument that can be a substitution of the human sense of smell. Electronic nose devices from the mid 1980s are used in growing number of applications. They comprise an array of several electrochemical gas sensors...

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  • Electronic Circuits for Graphene-Based Biosensor

    Publikacja
    • M. Raczyṅski
    • Ł. Przeniosło
    • M. Jaguszewski
    • E. Miguez
    • M. Jaskuła
    • D. Matias
    • A. Biedka
    • P. Makiewicz
    • M. Biegun
    • E. Mijowska... i 3 innych

    - Rok 2016

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  • Electronic and Photonic Systems Wilga 2014

    Publikacja

    - International Journal of Electronics and Telecommunications - Rok 2014

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  • Electronic and Photonic Systems Wilga 2014

    Publikacja

    - International Journal of Electronics and Telecommunications - Rok 2014

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  • Exploitation of Electronic Devices - Selected Issues

    Publikacja

    - Journal of KONBiN - Rok 2019

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  • Crystal structure and electronic structure of CePt2In7

    Publikacja
    • T. Klimczuk
    • O. Walter
    • L. Müchler
    • J. W. Krizan
    • F. Kinnart
    • R. J. Cava

    - JOURNAL OF PHYSICS-CONDENSED MATTER - Rok 2014

    We report a corrected crystal structure for the CePt2In7 superconductor, refined from single crystal x-ray diffraction data. The corrected crystal structure shows a different Pt–In stacking along the c-direction in this layered material than was previously reported. In addition, all of the atomic sites are fully occupied with no evidence of atom site mixing, resolving a discrepancy between the observed high resistivity ratio of...

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  • The 41Σ+ electronic state of LiCs molecule

    Publikacja

    - The European Physical Journal-Special Topics - Rok 2013

    The 41Σ+ state of LiCs molecule is observed experimentally for the first time. The inverted perturbation approach (IPA) method is used to derive the potential energy curve of the state from the measured spectra. The experiment is accompanied by theoretical calculations of adiabatic potentials for excited states in LiCs including 41Σ+, performed with the MOLPRO program package. The irregular shape of the 41Σ+ state potential predicted...

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  • Measurement platform for training of electronic nose

    Publikacja

    - Rok 2012

    W pracy zaprezentowano platformę do badania elektronicznego nosa. Zaproponowane rozwiązanie umożliwia trening elektronicznego nosa oraz pomiar charakterystyk czujników gazów.

  • Electronic and ionic relaxations in oxide glasses

    Publikacja

    Dokonano przeglądu procesów relaksacyjnych w szkłach wykazujących elektronowy i elektronowo-jonowy charakter przewodnictwa elektrycznego. Na podstawie badań impedancyjnych przedstawiono klasyfikację szkieł o mieszanym elektronowo-jonowym przewodnictwie. Wskazano na zalety metody tarcia wewnętrznego do badań procesów relaksacyjnych w szkłach tlenkowych.

  • Designing intranet portals as electronic workplaces

    Publikacja

    - Rok 2007

    This paper highlights the most important requirements for developing intranet portals, especially in the areas of user interface ergonomics and usability. In specifying relevant usability requirements both perspectives are considered: of company employees and of executives. Best practices are reviewed, regarding successes and failures in intranet absorption, basing on the results on recent research in a number of surveyed Polish...

  • Power Electronic Transformer For Smart Grid Application

    Publikacja

    In this paper the control system of Power Electronic Transformer (PET) for the Smart Grid application is proposed. The structure of PET is based on two Cascaded H-bridge (CHB) converters. The electrical energy is transferred between converters using Dual-Active-Bridges (DAB) and high-frequency transformers. This type of coupling has been used to connect the DC-links of all H-bridges. The proposed control system for PET makes it...

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  • Quality assurance of alcoholic beverages by electronic nose

    Publikacja

    - Rok 2011

    Quality is very important attribute of every alcoholic beverage. It is very significant to satisfy consumers and assure food quality. Flavour, colour and taste constitute a great matter not only for connoisseurs. Due to these features, the whole manufacturing process need to be monitored. This paper presents a high-class devices useful in assessing of beverage quality. Electronic noses offer quick real-time analysis, which is very...

  • On the electronic structure of methyl butyrate and methyl valerate

    Publikacja
    • M. Śmiałek-Telega
    • D. Duflot
    • N. C. Jones
    • S. Hoffmann
    • L. Zuin
    • M. MacDonald
    • N. J. Mason
    • P. Limão-Vieira

    - EUROPEAN PHYSICAL JOURNAL D - Rok 2020

    We present novel results of the analysis of the electronic structure of two aliphatic esters: methyl butyrate and methyl valerate. High-resolution photoabsorption spectra were collected and analyzed over the energy range 4.0–10.8 eV and showed for both the molecules not only a clear band of the HOMO to LUMO transition, but also vibronic structure associated with the first Rydberg-valence transition. Photoelectron spectra recorded...

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  • The Use of Electronic Nose for Sunflower and Rapeseed Oil Classification

    Publikacja

    The electronic nose is an analytical device often used in food industries to examine the authenticity of their products. The use of the electronic nose allows for a rapid assessment of the quality of food. The oil samples from sunflower and rapeseed were used in this study. Both oil samples were kept inside the thermostat incubator at different ranging from 20oC to 180oC with increment of 40oC. Principal Component Analysis (PCA)...

  • The Use of Electronic Nose for Sunflower and Rapeseed Oil Classification

    Publikacja

    The electronic nose is an analytical device often used in food industries to examine the authenticity of their products. The use of the electronic nose allows for a rapid assessment of the quality of food. The oil samples from sunflower and rapeseed were used in this study. Both oil samples were kept inside the thermostat incubator at different ranging from 20oC to 180oC with increment of 40oC. Principal Component Analysis (PCA)...

  • Decision making techniques for electronic communication: an example for Turkey

    Publikacja

    - Rok 2017

    Communication is the way for people exchanging information with each other by using various tools. Electronic communication or Ecommunication is the process of sending, receiving and processing information or messages electronically. Electronic communication that is closely related to the development levels of countries, has made considerable progress especially in terms technology, innovation and entrepreneur. In this study, it...

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  • An electronic nose based on the semiconducting and electrochemical gas sensors

    The practical application of human nose for fragrance recognition is severely limited by the fact that our sense of smell is subjective and gets tired easily. Consequently, there is a significant need for an instrument that can be a substitution of the human sense of smell. Development of an electronic nose devices is an active area of research starting from pioneering research of Dodd and Persuad in the mid-1980s. Such systems...

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  • A System for Cooling Electronic Elements with EHD Coolant Flow

    Publikacja
    • M. Tański
    • M. Kocik
    • R. Barbucha
    • K. Garasz
    • J. Mizeraczyk
    • J. Kraśniewski
    • M. Oleksy
    • A. Hapka
    • W. Janke

    - Journal of Physics : Conference Series - Rok 2014

    A system for cooling electronic components where the liquid coolant flow is forced with ion-drag type EHD micropumps was tested.

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  • Quality Evaluation of Agricultural Distillates Using an Electronic Nose

    The paper presents the application of an electronic nose instrument to fast evaluation of agricultural distillates differing in quality. The investigations were carried out using a prototype of electronic nose equipped with a set of six semiconductor sensors by FIGARO Co., an electronic circuit converting signal into digital form and a set of thermostats able to provide gradient temperature characteristics to a gas mixture. A volatile fraction...

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  • Gas chromatography-olfactometry (GC-O), electronic noses (e-noses) and electronic tongues (e-tongues) for in vivo food flavour measurement

    Publikacja

    The capter revies two types of artificial olfaction instrumentation, i.e. gas-chromatography-olfactometry (GC-O) and chemical sensor technologies (electronic nose and tongue), combined with multivariate data processing methods as promising approaches for rapid analysis of food. The chapter also includes examples of specific applications for the detection of food flavour and volatile components.

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  • Fault detection in electronic circuits using test buses

    Publikacja

    - Rok 2009

    A survey of test buses designed for diagnostics of digital and analog electronic circuits is presented: the IEEE 1149.1 bus for digital circuits, the IEEE 1149.4 bus for mixed-signal and the IEEE 1149.6 bus for AC coupled complex digital circuits. Each bus is presented with its structure, solution of key elements, particularly boundary registers and a set of test instructions. Diagnosis with the use of the described buses is...

  • Structural properties of hypothetical CeBa2Cu3O7 compound from LSDA+DMFT calculations

    Publikacja

    The hypothetical stoichiometric CeBa2Cu3O7 (Ce123) compound, which has not been synthesized as a single phase yet, was studied by the density functional theory (DFT). We utilized a method which merges the local spin density approximation (LSDA) with the dynamical mean-field theory (DMFT) to account for the electronic correlations. The LSDA+DMFT calculations were performed in the high-temperature range. The particular emphasis was...

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  • Evaluation of the Electronic Nose Used for Monitoring Environmental Pollution

    Air pollution is a one of the major concern of civilized world, which has a significant impact on human health and the environment. Recent studies highlight that the exposure to polluted air can increase the incidence of diseases and deteriorate the quality of life. Hence, it is necessary to develop tools for real-time air quality monitoring. Electronic-nose systems based on sensors are an interesting and promising technology in...

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  • Properties of LiMnBO3 glasses and nanostructured glass-ceramics

    Publikacja
    • P. Michalski
    • A. Gołębiewska
    • J. Trebosc
    • O. Lafon
    • T. Pietrzak
    • J. Ryl
    • J. Nowiński
    • M. Wasiucionek
    • J. Garbarczyk

    - SOLID STATE IONICS - Rok 2019

    Polycrystalline LiMnBO3 is a promising cathode material for Li-ion batteries. In this work, we investigated the thermal, structural and electrical properties of glassy and nanocrystallized materials having the same chemical composition. The original glass was obtained via a standard melt-quenching method. SEM and 7Li solid-state NMR indicate that it contains a mixture of two distinct glassy phases. The results suggest that the...

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  • State of the art electronic nose technology and future trends

    Publikacja

    - Rok 2010

    This chapter briefly reviews the progress in field of artificial olfaction and demonstrates future trends in electronic nose technology. The discussion about e-nose concern also a big challenge for the pattern recognition (PARC) systems due to several particular problems they involve. Finally, the application of e-nose in different areas of life is given.

  • Crystal structure, chemical bonding, and physical properties of layered AIrSn2 (A = Sr and Ba)

    Publikacja

    - JOURNAL OF MATERIALS SCIENCE - Rok 2019

    We report the experimental and theoretical investigation of structure, chemical bonding interactions, and physical properties of new ternary stannides AIrSn2 (A = Sr and Ba). AIrSn2 (A = Sr and Ba) crystallizes in the orthorhombic Re3B-type structure with the space group Cmcm (No. 64). According to single-crystal X-ray diffraction results, the structure of AIrSn2 (A = Sr and Ba) can be considered as a Zintl-type compound with heterogeneous...

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  • Electronic states of tetrahydrofuran molecules studied by electron collisions

    Electronic states of tetrahydrofuran molecules were studied in the excitation energy range 5.5-10 eV using the technique of electron energy loss spectroscopy in the gas phase. Excitation from the two conformations, C2 and Cs, of the ground state of the molecule are observed in the measured energy loss spectra. The vertical excitation energies of the 3(no3s) triplet state from the C2 and Cs conformations of the ground state of the...

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  • A simple modular active power electronic transformer

    Publikacja

    - Rok 2014

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  • Clustering Bathymetric Data for Electronic Navigational Charts

    Publikacja

    - JOURNAL OF NAVIGATION - Rok 2016

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  • On the electronic structure of methyl butyrate and methyl valerate

    Publikacja
    • M. Śmiałek
    • D. Duflot
    • N. Jones
    • S. Hoffmann
    • L. Zuin
    • M. Macdonald
    • N. Mason
    • P. Limão-Vieira
    • M. Śmiałek-Telega

    - EUROPEAN PHYSICAL JOURNAL D - Rok 2020

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  • Advanced Photonic and Electronic Systems WILGA 2017

    Publikacja

    - International Journal of Electronics and Telecommunications - Rok 2017

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  • Advanced photonic and electronic systems WILGA 2016

    Publikacja

    - International Journal of Electronics and Telecommunications - Rok 2016

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  • Advanced Photonic and Electronic Systems WILGA 2010

    Publikacja

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  • Electronic stabilization of beams in sonar with cylindrical array

    Artykuł prezentuje podstawy opisu beamformera dla sonaru z antena cylindryczną. Artykuł pokazuje, że zmodyfikowany beamformer może zostać użyty do stabilizacji osi wiązki w horyzontalnej płaszczyźnie, gdy znany jest przechył i zanurzenie statku. Artykuł przedstawia także problem elektronicznego odchylania wiązki.

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  • Cooling of electronic equipment by means of jets and microjets

    Publikacja

    - Rok 2007

    W pracy przedstawiono rozwiązanie sprzężonej wymiany ciepła od uderzającej strugi cieczy oraz przewodzenia ciepła w łytce. Uzyskano proste zależności opisujące rozkład temperatur na płytce. Umożliwia to przeprowadzenie analizy wpływu różnych parametró na wymianę ciepła podczas chłodzenia urządzeń elektronicznych generujących ciepło.

  • Electronic structure of multiwall boron nitride nanotubes

    Publikacja
    • G. Fuentes
    • E. Borowiak-Palen
    • T. Pichler
    • X. Liu
    • A. Graff
    • G. Behr
    • R. Kalenczuk
    • M. Knupfer
    • J. Fink
    • E. Mijowska

    - Physical Review B - Rok 2003

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  • Design of electromagnetic shields for small electronic units.

    Publikacja

    - Rok 2005

    Systemy elektroniczne, które przetwarzają informacje niejawną lub informację chronioną prawem, wymagają nie tylko jej szyfrowania, ale także zastosowania środków i metod minimalizacji ulotu elektromagnetycznego, jaki zawsze towarzyszy elektronicznemu przetwarzaniu informacji. Wymagania dotyczące tłumienia emisji promieniowanej i przewodzonej, w szczególności dotyczące przetwarzania i przesyłania informacji tajnej osiągają poziom...

  • CM Voltage Compensators for Power Electronic Interfaces

    Publikacja
    • R. Smoleński
    • J. Bojarski
    • P. Leżyński
    • A. Kempski
    • J. Łuszcz

    - IEEE Electromagnetic Compatibility Magazine - Rok 2015

    The experimental results presented in the paper have shown that the application of the PEIs might cause EMC related problems, especially in the case of the application of a group of connected converters. The most convenient way to reduce EMI currents and prevent aggregation of EMI currents introduced by a group of converters is through passive compensation of voltage interference sources inside of the single converters. In the...

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  • RECENT ADVANCES IN GRAPHENE APPLICATION FOR ELECTRONIC SENSING

    The great interest in graphene is caused by its potential for constructing various sensors exhibiting excellent parameters. The high carrier mobility and the unique band structure of graphene makes it promising especially in the field-effect transistors (GFET) applications. In this article, recent advances of the selected graphene-based sensor applications were presented and the possible directions for further investigations were...

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  • Ab Initio Study of the Electronic Spectrum of 7-Hydroxyquinoline

    Publikacja
    • J. Franz
    • S. Peyerimhoff
    • M. Hanrath
    • O. Kwon
    • D. Jang

    - CHEMISTRY LETTERS - Rok 2005

    The electronic spectrum of 7-hydroxyquinoline has been studied by using ab initio Multi-State Multi-Reference Møller-Plesset Second-Order Perturbation Theory (MSMRMP2). The energy range up to 6.5 eV is taken into consideration. The lowest π–π* transition is calculated to have an energy of 3.65 eV in good agreement with experimental data. Several other π–π* transitions are predicted to have excitation energies of 4.93, 5.20, 5.47,...

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  • Thin CVD diamond films - synthesis, properties, applications

    Publikacja

    - Rok 2014

    The basic model of diamond films growth, in the low pressure synthesis, deposition from the CVD gas phase, is the mixture of hydrocarbon gas in presence with activated hydrogen and its nucleation on the substrate as a result of pyrolysis reaction. It allows to cross the great energetic barrier between graphite and diamond. High pressure and temperature are replaced by change of electronic structure of atoms into gas precursors...

  • Electronic noses: Powerful tools in meat quality assessment

    Main factors that are considered by consumers when choosing meat products are colour and aroma, of which the latter is a more reliable indicator of quality. However, a simple sensory evaluation of hedonistic qualities is often not sufficient to determine whether protein is past its shelf life, and consumption of spoiled meat can lead to serious health hazards. Some volatile compounds can be used as spoilage indicators, and so a...

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