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Quantum interactions of optical radiation with the defect centres in the tails of the forbidden band of amorphous materials

100%

Mazinov A. , Shevchenko A. , Bahov V.

Optica Applicata

2014

tom Vol. 44, nr 2

327--335

In this paper, the model approach that describes the quantum interaction of optical waves with the polycrystalline and amorphous semiconductor films is proposed. The absorption coefficient for active layers of semiconductor films is represented as the sum of pseudo-crystalline and amorphous components. Based on the proposed theoretical approach, we considered the long-wavelength optical absorption spectra of amorphous silicon in 1500–4000 cm–1 range. The resonant absorption centres were identified and were associated with V-V, I-V, V-V defect centres in a silicon gap with energies of 0.20–0.45 eV.

The high-efficient technology of steels modifying by complex master alloys

100%

Bykovskykh S. , Jeronko S. , Shevchenko A. , Bogatskij V.

Krzepnięcie Metali i Stopów

2000

tom R. 2, nr 43

83--87

As practice shown the modifying of steel is one of most efficient way of steel service characteristic improving as modifying can be able to provide the set totality of necessary properties and structure of metal [1-3] . The change of high-alloyed cast steels on more cheap structural modifying steels is actual because lasts have the more efficient technology of receiving and processing and provide higher level of special service properties. Efficiency of practicable measures for improving a processing steel quality in many depends of chemical compound of used master alloy, ways of input its in liquid melt and conditions of interaction of added materials particle with steel components.

Life expectancy in patients with stage iii a non-small cell lung cancer (NSCIC) treated with neoadjuvant chemoradiotherapy (NCRT), neoadjuvant chemotherapy (NCT), neoadjuvant chemotherapy + adjuvant radiation therapy (NCT + adjuvant RT)

75%

Maliarchuk K. , Ganul A. , Borisyuk B. , Bororov L. , Shevchenko A. , Sovenko V. , Kutsenko L.

Health Problems of Civilization

2022

tom 16

nr 4