cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.12853955
title: Multi-component reaction synthesis of novel 3-phenyl-3,4-dihydro-2<i>H</i>-benzo[<i>a</i>][1,3] oxazino[5,6-<i>c</i>]phenazine derivatives catalyzed by reusable ZnO-PTA@Fe<sub>3</sub>O<sub>4</sub>/EN-MIL-101(Cr) nanopowder at room temperature

description: A simple, one-pot procedure for the synthesis of novel 3-phenyl-3,4-dihydro-2<i>H</i>-benzo[<i>a</i>][1,3] oxazino[5,6-<i>c</i>]phenazine derivatives by four-component coupling reaction between benzo[<i>a</i>]phenazine-5-ol, formaldehyde and amine in the presence of a catalytic amount ZnO-PTA@Fe<sub>3</sub>O<sub>4</sub>/EN-MIL-101(Cr) nanopowder in ethanol at room temperature under stirring condition. ZnO-PTA@Fe<sub>3</sub>O<sub>4</sub>/EN-MIL-101(Cr) An inorganic magnetic catalyst was analyzes and described by the XRD, TEM, FESEM, TGA, AFM, VSM and ICP-OES. This study presents simple, efficient, and one-pot multicomponent protocol, which provides several advantages such as short reaction times, high yields, easy working up, chromatography-free technique, catalyst recovery, and reusability are other highlights of this work.
DOI: 10.6084/m9.figshare.12853955.v2
title: Multi-component reaction synthesis of novel 3-phenyl-3,4-dihydro-2<i>H</i>-benzo[<i>a</i>][1,3] oxazino[5,6-<i>c</i>]phenazine derivatives catalyzed by reusable ZnO-PTA@Fe<sub>3</sub>O<sub>4</sub>/EN-MIL-101(Cr) nanopowder at room temperature

description: A simple, one-pot procedure for the synthesis of novel 3-phenyl-3,4-dihydro-2<i>H</i>-benzo[<i>a</i>][1,3] oxazino[5,6-<i>c</i>]phenazine derivatives by four-component coupling reaction between benzo[<i>a</i>]phenazine-5-ol, formaldehyde and amine in the presence of a catalytic amount ZnO-PTA@Fe<sub>3</sub>O<sub>4</sub>/EN-MIL-101(Cr) nanopowder in ethanol at room temperature under stirring condition. ZnO-PTA@Fe<sub>3</sub>O<sub>4</sub>/EN-MIL-101(Cr) An inorganic magnetic catalyst was analyzes and described by the XRD, TEM, FESEM, TGA, AFM, VSM and ICP-OES. This study presents simple, efficient, and one-pot multicomponent protocol, which provides several advantages such as short reaction times, high yields, easy working up, chromatography-free technique, catalyst recovery, and reusability are other highlights of this work.
DOI: 10.6084/m9.figshare.12853955.v1
title: Multi-component reaction synthesis of novel 3-phenyl-3,4-dihydro-2<i>H</i>-benzo[<i>a</i>][1,3] oxazino[5,6-<i>c</i>]phenazine derivatives catalyzed by reusable ZnO-PTA@Fe<sub>3</sub>O<sub>4</sub>/EN-MIL-101(Cr) nanopowder at room temperature

description: A simple, one-pot procedure for the synthesis of novel 3-phenyl-3,4-dihydro-2<i>H</i>-benzo[<i>a</i>][1,3] oxazino[5,6-<i>c</i>]phenazine derivatives by four-component coupling reaction between benzo[<i>a</i>]phenazine-5-ol, formaldehyde and amine in the presence of a catalytic amount ZnO-PTA@Fe<sub>3</sub>O<sub>4</sub>/EN-MIL-101(Cr) nanopowder in ethanol at room temperature under stirring condition. ZnO-PTA@Fe<sub>3</sub>O<sub>4</sub>/EN-MIL-101(Cr) An inorganic magnetic catalyst was analyzes and described by the XRD, TEM, FESEM, TGA, AFM, VSM and ICP-OES. This study presents simple, efficient, and one-pot multicomponent protocol, which provides several advantages such as short reaction times, high yields, easy working up, chromatography-free technique, catalyst recovery, and reusability are other highlights of this work.
DOI: 10.34808/03d8-9720
title: Linear impedance of vanadate glasses containing BaTiO3

description: The linear impedance of vanadate glasses doped with BaTiO3 was measured. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate to obtain flat circular pellets of 1–2 mm thickness and 10–20 mm in diameter.  For the electrical measurements gold electrodes were evaporated at the preheated samples. Impedance measurements were carried out in the frequency range from 1 mHz to 1 MHz and the temperature range from 153 K to 423 K, with the ac voltage of 1 Vrms with Concept 40 broadband dielectric spectrometer.
 Detailed information you can find in: http://dx.doi.org/10.1016/j.jnoncrysol.2014.01.008
DOI: 10.34808/f982-x066
title: Linear impedance of vanadate glass-ceramics containing BaTiO3

description: The linear impedance of vanadate glass-ceramics containing BaTiO3 was measured. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate to obtain flat circular pellets of 1–2 mm thickness and 10–20 mm in diameter. Next  subset of as-quenched samples was heat treated in air at the temperature of 633 K (close to the crystallization temperature) for 6 h and cooled with the furnace. For the electrical measurements gold electrodes were evaporated at the preheated samples. Impedance measurements were carried out in the frequency range from 1 mHz to 1 MHz and the temperature range from 153 K to 423 K, with the ac voltage of 1 Vrms with Concept 40 broadband dielectric spectrometer.
 Detailed information you can find in: http://dx.doi.org/10.1016/j.jnoncrysol.2014.01.008
DOI: 10.34808/axjf-kn74
title: The morphology of vanadate glasses containing BaTiO3

description: The morphology of vanadate glasses doped with BaTiO3 was measured. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate.  An Olympus LEXT OLS4000 confocal scanning laser microscope (CSLM, Olympus Life Science, Hambur, Germany ) was used to examine the morphology of as-quenched surfaces and polished surfaces of samples. 3D color images were obtained using a 405 nm laser and photomultiplier detector with the maximum obtained optical magnification of 2160x.
Detailed information can be found in: http://dx.doi.org/10.1016/j.jnoncrysol.2014.01.008
DOI: 10.34808/hsy1-0z48
title: Data obtained by computation for X-ray imaging of grating without magnification using oriented Gaussian beams

description: The propagation of X-ray waves through an optical system consisting of grating and X-ray refractive lenses is considered. In this approach, the propagating wave is represented as a superposition of the oriented Gaussian beams. The direction of wave propagation in each Gaussian beam is consistent with the local propagation direction of the X-ray wavefront.
The dataset shows the result of computing the intensity of X-rays propagating through a grating and then through a parabolic beryllium lens at a distance of two focal lengths from the lens. The distance between the grating and the optical system in the calculations was taken to obtain magnification factor equal 1 (according to thin lens formula). In total, the data consists of 159201 points. Each point consists of 3 numbers, which are separated by commas. The first and second numbers are responsible for the position (in millimeters) of the point on the plane, the third number - for the intensity values. Points are separated by brackets and enters.
The  algorithm for computing the dataset is available in the paper: P. Wojda, S. Kshevetskii,  Oriented Gaussian beams for high-accuracy computation with accuracy control of X-ray propagation through a multi-lens system, J. Synchrotron Rad. (2019). 26,  363-372https://doi.org/10.1107/S1600577518017368. The dataset was used to obtain the figure in the paper: P. Wojda, S. Kshevetskii, I. Lyatun, High-accuracy computation of hard X-ray focusing and imaging for refractive optics, J. Synchrotron Rad. (2021). 28, 741–755 https://doi.org/10.1107/S1600577521001880.
DOI: 10.34808/z2a4-j352
title: Data obtained by computation for X-ray imaging of grating with magnification factor equal 2 using oriented Gaussian beams

description: The propagation of X-ray waves through an optical system consisting of grating and X-ray refractive lenses is considered. In this approach, the propagating wave is represented as a superposition of the oriented Gaussian beams. The direction of wave propagation in each Gaussian beam is consistent with the local propagation direction of the X-ray wavefront.
The dataset shows the result of computing the intensity of X-rays propagating through a grating and then through a parabolic beryllium lens at a distance of tree focal lengths from the lens. The distance between the grating and the optical system in the calculations was taken to obtain magnification factor equal 2 (according to thin lens formula). In total, the data consists of 159201 points. Each point consists of 3 numbers, which are separated by commas. The first and second numbers are responsible for the position (in millimeters) of the point on the plane, the third number - for the intensity values. Points are separated by brackets and enters.
The  algorithm for computing the dataset is available in the paper: P. Wojda, S. Kshevetskii,  Oriented Gaussian beams for high-accuracy computation with accuracy control of X-ray propagation through a multi-lens system, J. Synchrotron Rad. (2019). 26,  363-372https://doi.org/10.1107/S1600577518017368. The dataset was used to obtain the figure in the paper: P. Wojda, S. Kshevetskii, I. Lyatun, High-accuracy computation of hard X-ray focusing and imaging for refractive optics, J. Synchrotron Rad. (2021). 28, 741–755 https://doi.org/10.1107/S1600577521001880.
DOI: 10.34808/8jfd-7z89
title: SEM images of symmetrical cell interface with SrTi0.30Fe0.70O3-d electrode and CGO-20 substrate in function of sintering temperature

description: This dataset contains  images of polished cross section of symmetrical cell interface with SrTi0.30Fe0.70O3-d electrode and CGO-20 substrate in function of sintering temperature (800 °C, 900°C and 1000 °C) . Images were obtained using a PhenomXL (Thermo Fisher Scientific, the Netherlands) scanning electron microscope (SEM) with an accelerating voltage of 12 kV in a high vacuum mode.
DOI: 10.34808/tqem-zp37
title: SEM images of symmetrical cell interface with SrTi0.50Fe0.50O3-d electrode and CGO-20 substrate in function of sintering temperature

description: This dataset contains  images of polished cross section of symmetrical cell interface with SrTi0.50Fe0.50O3-d electrode and CGO-20 substrate in function of sintering temperature (800 °C, 900°C and 1000 °C) . Images were obtained using a PhenomXL (Thermo Fisher Scientific, the Netherlands) scanning electron microscope (SEM) with an accelerating voltage of 12 kV in a high vacuum mode.
DOI: 10.34808/81tf-vy09
title: The morphology of vanadate glass-ceramics containing BaTiO3

description: The morphology of vanadate glass-ceramic doped with BaTiO3 was measured. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate.  A subset of as-quenched samples was heat treated in air at the temperature of 633 K (close to the crystallization temperature) for 6 h and cooled with the furnace. An Olympus LEXT OLS4000 confocal scanning laser microscope (CSLM, Olympus Life Science, Hambur, Germany ) was used to examine the morphology of as-quenched surfaces and polished surfaces of samples. 3D color images were obtained using a 405 nm laser and photomultiplier detector with the maximum obtained optical magnification of 2160x.
Detailed information can be found in: http://dx.doi.org/10.1016/j.jnoncrysol.2014.01.008
DOI: 10.34808/rvaz-8h81
title: The structure of vanadate glasses containing BaTiO3.

description: The structure of vanadate glasses doped with BaTiO3 was measured by SEM technique. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate. The chemical compositions of the glasses were determined by energy‐dispersive Xray spectrometer (EDX GENESIS Apex Apollo X60 spectrometer, Mahwah, NJ, USA) analysis, using a scanning electron microscope (SEM), FEI Company Quanta FEG250 (FEI, Eindhoven , The Netherlands). SEM observations were done with a SE‐ETD detector (secondary electron—Everhart–Thornley detector) using a 20 kV beam accelerating voltage and under the high vacuum (pressure 10−4 Pa). Samples were freshly fractured before measurements. 
Detailed information can be found in: http://dx.doi.org/10.1016/j.jnoncrysol.2014.01.008
DOI: 10.34808/jy2x-bm71
title: The structure of vanadate glass-ceramics containing BaTiO3.

description: The structure of vanadate glass-ceramics doped with BaTiO3 was measured by SEM technique. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate. A subset of as-quenched samples was heat treated in air at the temperature of 633 K (close to the crystallization temperature) for 6 h and cooled with the furnace. The chemical compositions of the glasses were determined by energy‐dispersive Xray spectrometer (EDX GENESIS Apex Apollo X60 spectrometer, Mahwah, NJ, USA) analysis, using a scanning electron microscope (SEM), FEI Company Quanta FEG250 (FEI, Eindhoven , The Netherlands). SEM observations were done with a SE‐ETD detector (secondary electron—Everhart–Thornley detector) using a 20 kV beam accelerating voltage and under the high vacuum (pressure 10−4 Pa). Samples were freshly fractured before measurements. 
Detailed information can be found in: http://dx.doi.org/10.1016/j.jnoncrysol.2014.01.008
DOI: 10.34808/67fv-r639
title: Data obtained by computation for X-ray imaging of grating with magnification factor equal 4 using oriented Gaussian beams

description: The propagation of X-ray waves through an optical system consisting of grating and X-ray refractive lenses is considered. In this approach, the propagating wave is represented as a superposition of the oriented Gaussian beams. The direction of wave propagation in each Gaussian beam is consistent with the local propagation direction of the X-ray wavefront.
The dataset shows the result of computing the intensity of X-rays propagating through a grating and then through a parabolic beryllium lens at a distance of tree focal lengths from the lens. The distance between the grating and the optical system in the calculations was taken to obtain magnification factor equal 4 (according to thin lens formula). In total, the data consists of 159201 points. Each point consists of 3 numbers, which are separated by commas. The first and second numbers are responsible for the position (in millimeters) of the point on the plane, the third number - for the intensity values. Points are separated by brackets and enters.
The  algorithm for computing the dataset is available in the paper: P. Wojda, S. Kshevetskii,  Oriented Gaussian beams for high-accuracy computation with accuracy control of X-ray propagation through a multi-lens system, J. Synchrotron Rad. (2019). 26,  363-372https://doi.org/10.1107/S1600577518017368. The dataset was used to obtain the figure in the paper: P. Wojda, S. Kshevetskii, I. Lyatun, High-accuracy computation of hard X-ray focusing and imaging for refractive optics, J. Synchrotron Rad. (2021). 28, 741–755 https://doi.org/10.1107/S1600577521001880.
DOI: 10.34808/aja1-g131
title: Data obtained by computation for X-ray imaging of grating with magnification factor equal 8 using oriented Gaussian beams

description: The propagation of X-ray waves through an optical system consisting of grating and X-ray refractive lenses is considered. In this approach, the propagating wave is represented as a superposition of the oriented Gaussian beams. The direction of wave propagation in each Gaussian beam is consistent with the local propagation direction of the X-ray wavefront.
The dataset shows the result of computing the intensity of X-rays propagating through a grating and then through a parabolic beryllium lens at a distance of tree focal lengths from the lens. The distance between the grating and the optical system in the calculations was taken to obtain magnification factor equal 8 (according to thin lens formula). In total, the data consists of 159201 points. Each point consists of 3 numbers, which are separated by commas. The first and second numbers are responsible for the position (in millimeters) of the point on the plane, the third number - for the intensity values. Points are separated by brackets and enters.
The  algorithm for computing the dataset is available in the paper: P. Wojda, S. Kshevetskii,  Oriented Gaussian beams for high-accuracy computation with accuracy control of X-ray propagation through a multi-lens system, J. Synchrotron Rad. (2019). 26,  363-372https://doi.org/10.1107/S1600577518017368. The dataset was used to obtain the figure in the paper: P. Wojda, S. Kshevetskii, I. Lyatun, High-accuracy computation of hard X-ray focusing and imaging for refractive optics, J. Synchrotron Rad. (2021). 28, 741–755 https://doi.org/10.1107/S1600577521001880.
DOI: 10.34808/5syq-ah53
title: SEM images of symmetrical cell interface with SrTi0.65Fe0.35O3-d electrode and CGO-20 substrate in function of sintering temperature

description: This dataset contains  images of polished cross section of symmetrical cell interface with SrTi0.65Fe0.35O3-d electrode and CGO-20 substrate in function of sintering temperature (800 °C, 900°C and 1000 °C) . Images were obtained using a PhenomXL (Thermo Fisher Scientific, the Netherlands) scanning electron microscope (SEM) with an accelerating voltage of 12 kV in a high vacuum mode.
DOI: 10.34808/kakr-1275
title: Comparisson of area specific resistance of the SrTi1-xFexO3-d porous oxygen electrodes and state-of-the-art LSCF sintered at optimal conditions

description: In this dataset are presented results of the polarization resistance of optimaly sintered SrTi1-xFexO3-d  porous oxygen electrodes in symetrical cell (1000 °C; 800 °C and 800°C respectively x = 0.35; 0.50 and 0.70). For commparison were selected commercially avilable state-of-the-art LSCF (Europa) sintered at 1050 °C. The measurement temperature range was between 800 °C and 500 °C in syntetic air (40 ml min-1 flow). Results converted to electrode surfaces area and dived by two electrodes.
DOI: 10.34808/639a-gr54
title: The structure of vanadate glass-ceramics containing BaTiO3 measured with X-ray diffraction method

description: The structure of vanadate glass-ceramics doped with BaTiO3 was measured by XRD. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate. A subset of as-quenched samples was heat treated in air at the temperature of 633 K (close to the crystallization temperature) for 6 h and cooled with the furnace. The structure of powdered samples was measured before and after heat-treatment. The structure has been studied by the X-ray diffraction method with the use of a Philips X'Pert Pro MPD system with the CuKα radiation.
Detailed information can be found in: http://dx.doi.org/10.1016/j.jnoncrysol.2014.01.008
DOI: 10.34808/wzpr-bc87
title: Nonlinear impedance of vanadate glasses containing BaTiO3

description: The nonlinear impedance of vanadate glasses doped with BaTiO3 was measured. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate to obtain flat circular pellets of 1–2 mm thickness and 10–20 mm in diameter.  For the electrical measurements gold electrodes were evaporated at the preheated samples. Nonlinear Impedance measurements were carried out in the frequency range from 1 mHz to 1 MHz and the temperature range from 153 K to 423 K, with the ac voltage of 1 Vrms with Concept 40 broadband dielectric spectrometer. The higher harmonic components (harmonic 0, harmonic1 and harmonic2) were measured up to frequency of 1000 Hz. Here the impedance for harmonic components was defined as the ratio of the voltage base wave to the n-th harmonic current component: Zn∗= U0∗/In∗, where Zn⁎ including the base wave generally depend on the sample voltage U1⁎ base wave amplitude. From Zn⁎ allother independent variables are calculated. The dependence of current density on the cosinusoidal electric field E(t)= E0cos(ωt) leads to the following expression:j´ = σ´0hE0 cos (ωt) + σ´1hE0 cos (2ωt) + σ´2hE0 cos (3ωt) + …Where σ´0h denotes base conductivity, while σ´1h, σ´2h etc. are higher harmonics conductivity. The admittivity for harmonic components with n ≥1, is calculated from relation σ⁎n = i2πfε0ε⁎n.
DOI: 10.34808/w3p6-jw71
title: The morphology of vanadate glasses containing BaTiO3 measured with the use of AFM

description: The morphology of vanadate glasses doped with BaTiO3 was measured with the use of AFM method. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate.  The structure has been studied by atomic force microscopy with NT-MDT Ntegra AFM microscope on fresh fractured samples.
DOI: 10.34808/6fat-d958
title: The morphology of vanadate glass-ceramics containing BaTiO3 measured with the use of AFM

description: The structure of vanadate glass-ceramics doped with BaTiO3 was measured by AFM technique. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573 K) brass plate and pressed by another plate. A subset of as-quenched samples was heat treated in air at the temperature of 633 K (close to the crystallization temperature) for 6 h and cooled with the furnace. The structure has been studied by atomic force microscopy with NT-MDT Ntegra AFM microscope on fresh fractured samples.