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1

Comparison of Flux Pinning in Single Crystals and Melt-Textured YBa_{2}Cu_{3}O_{7-x}

100%

Puźniak R., Wiśniewski A., Baran M., Zhou L.

Acta Physica Polonica A

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2000

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vol. 97

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issue 3

373-376

EN

Flux pinning properties of single crystals and melt-textured samples of YBa_{2}Cu_{3}O_{7-x} were studied for external magnetic field oriented parallel and perpendicular to the CuO_{2} planes (ab-planes). For H ∥ ab vortex behaviour is mainly determined by a very effective intrinsic pinning mechanism. The irreversibility line is located in the region of higher fields and temperatures in comparison with the irreversibility line for H ⊥ ab. In a single crystal for H ⊥ ab, we observed an increase in the critical current density j_{c} with magnetic field - the so-called "fishtail effect" - in a very broad temperature range. For H ∥ ab, this effect is observed only at temperatures close to T_{c}, when the intrinsic pinning is much weaker.

2

A new scheme for power factor correction and active filtering for six-pulse converters loads

76%

Han Y., Khan M., Xu L., Yao G., Zhou L., Chen C.

Bulletin of the Polish Academy of Sciences: Technical Sciences

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2009

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vol. 57

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issue 2

3

The Design and the First Test Results of a Fast LTD Stage

64%

Chen L., Zhou L., Zou W., Ren J., Li Y., Wu S., Xie W., Feng S., Deng J.

Acta Physica Polonica A

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2009

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vol. 115

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issue 6

1186-1188

EN

Linear transformer driver stages are designed to be used as a primary energy storage in high power pulsed generators. In this report, the design and test results of the linear transformer driver stage prototype that delivers ≈100 kA fast pulse with 133 ns FWHM into a ≈0.87 Ω resistive load are described. This stage consists of 20 (100 kV, 20 nF) storage capacitors that are arranged in 10 identical bricks located evenly around the axis of the stage. Each brick contains two capacitors, a multi-gap switch, and the output connector that transfers the energy to the resistive load. The outer diameter of the stage is ≈1.5 m, at a length of ≈20 cm. The stage is developed to demonstrate the possibility of the fast linear transformer driver technology to create high power pulsed generators.

4

Telomerase enhances osteogenic ifferentiation of sheep bone marrow mesenchymal stem cells (BMSCs) by up-regulating PI3K/Akt pathway in vitro

55%

Zhu X., Zhou L., Liu Z., Chen X., Wei L., Zhang Z., Liu Y., Zhu Y., Wang Y., Yang X., Han Y., Zhu X., Zhou L., Liu Z., Chen X., Wei L., Zhang Z., Liu Y., Zhu Y., Wang Y., Yang X., Han Y.

Polish Journal of Veterinary Sciences

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2020

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vol. 23

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issue 3

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Comparison of Flux Pinning in Single Crystals and Melt-Textured YBa_{2}Cu_{3}O_{7-x}

A new scheme for power factor correction and active filtering for six-pulse converters loads

The Design and the First Test Results of a Fast LTD Stage

Telomerase enhances osteogenic ifferentiation of sheep bone marrow mesenchymal stem cells (BMSCs) by up-regulating PI3K/Akt pathway in vitro