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1

The Microstructures and Hardness Analysis of a New Hypereutectoid Mn-Cr-Mo-V Steel

100%

Dabrowski R., Dziurka R., Rożniata E.

Archives of Metallurgy and Materials

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2013

|

issue 2

2

Changes in serum neopterin and C-reactive protein concentrations in female dogs with mammary gland tumours

89%

Szczubiał M., Dabrowski R., Łopuszyński W., Bochniarz M., Krawczyk M., Szczubiał M., Dabrowski R., Łopuszyński W., Bochniarz M., Krawczyk M.

Polish Journal of Veterinary Sciences

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2018

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vol. 21

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issue 4

3

Dielectric Permittivity and Viscoelastic Measurements οf Two Tricomponent Mixtures Consisting οf Laterally Fluorinated Terphenyl Derivatives

88%

Basak S., Dasgupta P., Das B., Das M., Dabrowski R.

Acta Physica Polonica A

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2013

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vol. 123

|

issue 4

714-719

EN

Two tricomponent room temperature nematic eutectic mixtures ABC and ABD with laterally fluorinated constituents A and B were prepared as base mixtures for vertically aligned mode LCD's. The physical properties of these mixtures viz. birefringence, dielectric anisotropy, bend elastic constant, relaxation time and rotational viscosities were determined in order to compare with the optimum values required to achieve the target specifications of VA mode materials. The dielectric anisotropy, Δ ε, and optical birefringence, Δ n, of these mixtures were found to be in the range of (-1.3 to -1.4) and (0.13 and 0.14), respectively, at around 20°C. The figure of merit for the ABD mixture has been found to be higher than that of ABC mixture throughout the entire temperature range. The pretilt angle effect in the physical parameters has also been studied. At T=20°C, the response time decreases to 25% and 35% for mixture ABC for 2° and 5° pretilt respectively in comparison to zero pretilt. On the other hand, at the same temperature for the ABD mixture these values are reduced by 16% and 35%, respectively.

4

Determination of Orientational Order Parameters of Two Tri-Component Mixtures from Optical Birefringence and X-Ray Diffraction Measurements

88%

Basak S., Dasgupta P., Das B., Das M., Dabrowski R.

Acta Physica Polonica A

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2011

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vol. 120

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issue 6

1037-1042

EN

Two tri-component mixtures as base mixtures for vertically aligned mode LCD's were prepared. The eutectic compositions were theoretically estimated and experimentally verified from differential scanning calorimetry studies. A room temperature nematic mixture with fairly broad operating range emerged from each of the tri-component mixtures. The optical birefringence of these mixtures at the eutectic composition was measured as a function of temperature. X-ray diffraction measurements were done on these mixtures to obtain the orientational order parameters as a function of temperature. The order parameter values were also determined from birefringence measurements and the results were compared with mean field theory. Structural parameters like intermolecular distance and apparent molecular length have also been determined.

5

Microstructure and Mechanical Properties of Structural Steel after Dynamic Cold Working Deformation/ Wpływ Dynamicznego Odkształcenia Plastycznego Na Zimno Na Mikrostrukturę I Własności Stali Konstrukcyjnej

88%

Pacyna J., Dziurka R., Rożniata E., Dabrowski R., Kokosza A.

Archives of Metallurgy and Materials

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2014

|

issue 4

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The Microstructures and Hardness Analysis of a New Hypereutectoid Mn-Cr-Mo-V Steel

Changes in serum neopterin and C-reactive protein concentrations in female dogs with mammary gland tumours

Dielectric Permittivity and Viscoelastic Measurements οf Two Tricomponent Mixtures Consisting οf Laterally Fluorinated Terphenyl Derivatives

Determination of Orientational Order Parameters of Two Tri-Component Mixtures from Optical Birefringence and X-Ray Diffraction Measurements

Microstructure and Mechanical Properties of Structural Steel after Dynamic Cold Working Deformation/ Wpływ Dynamicznego Odkształcenia Plastycznego Na Zimno Na Mikrostrukturę I Własności Stali Konstrukcyjnej