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Wyszukujesz frazę "Kachniarz, J." wg kryterium: Autor

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    Wyświetlanie 1-10 z 10
    Tytuł:
    Growth of Ternary and Quaternary ZnSe Compounds with Transition Metals by Chemical Vapor Transport
    Autorzy:
    Janik, E.
    Grasza, K.
    Mycielski, A.
    Bąk-Misiuk, J.
    Kachniarz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1929755.pdf
    Data publikacji:
    1993-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.10.Bk
    78.55.Et
    Opis:
    Halogen transport method was applied to grow the crystals of solid solutions of ZnSe and transition metals at the temperature far below the melting point and phase transition temperature. The large crystals of ZnMnSe, ZnFeSe, ZnNiSe and ZnFeSSe were obtained. The technological parameters and shape of the quartz reactor were chosen for growth of a large crystal by self-nucleation; the transparent quartz furnace enabled the control of nucleation by visual observation. The parameters of crystal growth were determined. The crystal quality was estimated by X-ray diffraction method. The composition of crystals was determined by electron microprobe analysis and energy dispersive X-ray fluorescence analysis.
    Źródło:
    Acta Physica Polonica A; 1993, 84, 4; 785-788
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Precipitates in Cd$\text{}_{1-x}$Ni$\text{}_{x}$Se Crystals Grown by the Bridgman Method
    Autorzy:
    Kachniarz, J.
    Dynowska, E.
    Miotkowska, S.
    Paszkowicz, W.
    Miotkowski, I.
    Ramdas, A. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1921645.pdf
    Data publikacji:
    1992-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.70.Wp
    61.55.Hg
    81.10.Fq
    Opis:
    Single crystals of Cd$\text{}_{1-x}$Ni$\text{}_{x}$Se alloys (x ranging from 0 to 0.075) were investigated using electron microprobe and X-ray diffraction. The analysis shows the presence of Ni-Se precipitates. The solubility limit of Ni is estimated to be 0.008.
    Źródło:
    Acta Physica Polonica A; 1992, 82, 5; 725-728
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Electrical, Magnetic, and Structural Properties of Sn$\text{}_{1-x}$Mn$\text{}_{x}$Te Layers Grown by Molecular Beam Epitaxy
    Autorzy:
    Nadolny, A. J.
    Sadowski, J.
    Story, T.
    Dobrowolski, W.
    Arciszewska, M.
    Świątek, K.
    Kachniarz, J.
    Adamczewska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1992036.pdf
    Data publikacji:
    1998-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.20.Ck
    75.30.Et
    68.55.-a
    Opis:
    Layers of Sn$\text{}_{1-x}$Mn$\text{}_{x}$Te (x ≤ 0.1) with thickness 0.2-2 μm were grown by molecular beam epitaxy on BaF$\text{}_{2}$ substrates with a 0.01-1 μm thick SnTe buffer layer. Both SnTe and Sn$\text{}_{1-x}$Mn$\text{}_{x}$Te layers show metallic p-type conductivity with conducting hole concentrations (at T=77 K) p$\text{}_{77}$=7×10$\text{}^{19}$ -2×10$\text{}^{21}$ cm$\text{}^{-3}$. The layers grown under the conditions of an extra Te flux have a high carrier concentration and exhibit ferromagnetic phase transition at T$\text{}_{C}$ ≤ 7 K. The layers grown with no (or very low) additional Te flux show low carrier concentrations (below 10$\text{}^{20}$ cm$\text{}^{-3}$) and remain paramagnetic in the temperature range studied T=4.5÷70 K.
    Źródło:
    Acta Physica Polonica A; 1998, 94, 3; 449-453
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetoelastic Villari Effect in Ferrite Materials for Force and Stress Sensors Working in Low Magnetizing Field Region
    Autorzy:
    Kachniarz, M.
    Bieńkowski, A.
    Salach, J.
    Szewczyk, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030958.pdf
    Data publikacji:
    2018-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.30.-m
    75.60.-d
    75.50.Gg
    75.80.+q
    07.10.Lw
    Opis:
    The following paper presents the original results of investigation on the magnetoelastic properties of ferrite materials magnetized in low field region, which could be utilized in development of force and stress sensors. The objects of investigation were two ferrite materials (manganese-zinc Mn-Zn and nickel-zinc Ni-Zn). The magnetoelastic characteristics of the materials were investigated with the special measurement system, allowing measurement of magnetic parameters of the ferrite materials magnetized with low fields under the influence of the compressive stress. The obtained results indicate that there is a strong correlation between the magnetic properties of the material in low magnetizing field region, and applied mechanical stress, which allows development of the magnetoelastic stress or force sensor with ferrite core working in low magnetizing field region.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 4; 1056-1059
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetoelastic Villari Effect in Structural Steel Magnetized in the Rayleigh Region
    Autorzy:
    Kachniarz, M.
    Kołakowska, K.
    Salach, J.
    Szewczyk, R.
    Nowak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030824.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.30.-m
    75.60.-d
    75.50.Cc
    75.80.+q
    07.10.Lw
    Opis:
    The following paper presents the results of investigation on the magnetoelastic Villari effect in structural steel magnetized in the so-called Rayleigh region, which corresponds to relatively low magnetizing fields, much lower than coercive field. Two grades of structural steel were investigated during the performed measurements. Obtained results indicate significant correlation between applied mechanical stress and magnetic properties of the investigated materials.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 660-662
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Open source ELMER software based FEM modeling of waveguides and resonant cavities for microwave heating and drying devices
    Autorzy:
    Szałatkiewicz, J.
    Szewczyk, R.
    Kalinowski, M.
    Kataja, J.
    Råback, P.
    Ruokolainen, J.
    Kachniarz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/140711.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    microwave
    waveguide
    resonant cavity
    FEM modeling
    ELMER software
    open source
    Opis:
    Microwave devices are widely used in the industry and in the specialized laboratory analyses. Development of such devices requires the possibility of modeling of microwave energy distribution in the specific resonant chambers. Until now, such modeling was possible only with the use of commercial software or was limited to specific cases. The paper presents an open-source module for ELMER software for solving timeharmonic Maxwell’s equations, allowing modeling of microwave waveguide lines. Three test cases of different resonant chambers are investigated at 2.45 GHz frequency. Modeling results obtained from the open-source ELMER Vectorial Helmholtz module show that the application of this software can be effective in R&D works, enabling high-tech small and medium enterprises involvement in advanced microwave technology.
    Źródło:
    Archives of Electrical Engineering; 2017, 66, 4; 745-750
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Discrete Inverse Transformation for Eddy Current Tomography
    Autorzy:
    Nowak, P.
    Urbański, M.
    Raback, P.
    Ruokolainen, J.
    Kachniarz, M.
    Szewczyk, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030496.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    02.30.Zz
    87.63.Pn
    02.70.Dh
    81.70.-q
    Opis:
    Paper presents results of a discrete inverse tomography transformation on exemplary results from eddy current tomography setup. Eddy current phenomena is highly non-linear and measurement results are ill-posed function of distribution of physical properties of the matter (mostly electrical conductivity and magnetic permeability). Thus the inverse transformation (reconstruction of objects shape) is based on an optimization algorithm in which objects model is described as a discrete array. With the usage of Finite Element Method (FEM) tomography measurement process is reconstructed and modelling results are compared with the measurement.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 701-703
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temperature Resistance of Magnetoelastic Characteristics of 13CrMo4-5 Constructional Steel
    Autorzy:
    Jackiewicz, D.
    Kachniarz, M.
    Rozniatowski, K.
    Dworecka, J.
    Szewczyk, R.
    Salach, J.
    Bienkowski, A.
    Winiarski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1387805.pdf
    Data publikacji:
    2015-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    46.25.Hf
    07.55.-w
    75.30.-m
    Opis:
    In the paper the results of investigation on tensile stresses dependence of magnetoelastic characteristics of cores made of 13CrMo4-5 constructional steel are presented. In the investigation step-cooling test treated samples were used. The step-cooling test process is a type of heat treatment simulating effects of passing time and environmental conditions (temperature and stress) on the sample. In the paper the method of testing the influence of stresses on the magnetic characteristics is presented. Frame shaped samples ensured a closed magnetic circuit and homogeneous distribution of stress. It was found that step-cooling test does not significantly influence the magnetoelastic characteristics and the structure of the samples. On the other hand, then tensile stresses significantly change the magnetic characteristics of 13CrMo4-5 constructional steel. That confirms the possibility of using measurements based on the magnetoelastic effect in the stress assessment for industrial non destructing testing of steel constructions.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 2; 614-616
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Functional Properties of Monolayer and Bilayer Graphene Hall-Effect Sensors
    Autorzy:
    Kachniarz, M.
    Petruk, O.
    Salach, J.
    Ciuk, T.
    Strupiński, W.
    Bieńkowski, A.
    Szewczyk, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030244.pdf
    Data publikacji:
    2017-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    07.55.Ge
    85.75.Ss
    85.30.Fg
    81.05.ue
    73.22.Pr
    72.80.Vp
    Opis:
    The paper describes the design, development, and investigation of a new type of Hall-effect sensors of a magnetic field made of graphene. The epitaxial growth of high-quality graphene structures was performed using a standard hot-wall CVD reactor, which allows for easy integration with an existing semiconductors production technologies. The functional properties of developed Hall-effect sensors based on graphene were investigated on special experimental setup utilizing Helmholtz coils as a source of reference magnetic field. Monolayer and quasi-free-standing bilayer graphene structures were tested. Results presented in the paper indicate that graphene is very promising material for development of Hall-effect sensors. Developed graphene Hall-effect sensor exhibit highly linear characteristics and high magnetic field sensitivity.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 5; 1250-1253
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Influence of Thermomagnetic Treatment on the Magnetoelastic Characteristics of Fe₆₁Co₁₉Si₅B₁₅ Amorphous Alloys
    Autorzy:
    Salach, J.
    Szewczyk, R.
    Svec Sr, P.
    Bieńkowski, A.
    Jackiewicz, D.
    Svec, P.
    Nowicki, M.
    Winiarski, W.
    Kachniarz, M.
    Gruszecka, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1387877.pdf
    Data publikacji:
    2015-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.80.+q
    75.50.Kj
    Opis:
    Information about magnetoelastic properties of newly developed amorphous magnetic alloys is very important from practical point of view, especially in the case of high permeability materials such as the Fe₆₁Co₁₉Si₅B₁₅ amorphous alloy. In the case of such materials, effect connected with the influence of external stresses on the magnetic properties of the alloy should be tested. This paper presents experimental results of the magnetoelastic properties investigation of the Fe₆₁Co₁₉Si₅B₁₅ amorphous alloy, annealed without magnetic field as well as in the magnetic field. Such thermo-magnetic treatment generated anisotropy has significant influence on the total free energy of magnetic material. In the magnetoelastic investigation, the compressive stress was applied to the ring shaped core, perpendicularly to the magnetizing field direction. Due to the fact, that cores with closed magnetic circuits were used, demagnetization did not change the balance of total free energy in the material.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 2; 617-619
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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