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Occurrence of emerging ruminant viruses in goats in Poland

M. Larska W. Socha J. Rola
Polish Journal of Veterinary Sciences | 2023 | vol. 26 | No 1 | 137-142 | DOI: 10.24425/pjvs.2023.145015
Słowa kluczowe goat seroprevalence emerging viruses BTV PPRV SBV capripoxviruses
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Abstrakt

Health status of Polish goat population in regard to the viral diseases remained mostly unknown. In order to determine serological status of Polish goats for selected emerging ruminant viruses, 365 serum samples collected between 2017 and 2019 in 36 districts within 10 of Polish provinces, were tested. No antibodies specific to Peste de Petite Ruminants Virus (PPRSV) and capripoxviruses (CaPV) were found in any of the tested animals. Only single individual (0.27%) was seropositive to Blutongue Virus (BTV). Antibodies directed to Schmallenberg Virus (SBV) were detected in 46 goats which represented 12.6% of the tested population. No association between seropositivity to SBV and year of sampling, province of origin, gender and age was found. In conclusion, among studied viral pathogens, currently only SBV seemed to be important for epidemiological status of Polish goats.
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Autorzy i Afiliacje

M. Larska
1
W. Socha
1
J. Rola
1
  1. Department of Virology, National Veterinary Research Institute, Al. Partyzantow 57, 24-100 Pulawy, Poland

A solution-processable small-organic molecules containing carbazole or phenoxazine structure as hole-transport materials for perovskite solar cells

K. Gawlińska-Nęcek Zbigniew Starowicz D. Tavgeniene G. Krucaite S. Grigalevicius Ewa Schab-Balcerzak M. Lipiński
Opto-Electronics Review | 2019 | vol. 27 | No 2 | 137-142
Słowa kluczowe Carbazole derivatives Perovskite photovoltaic cells Hole transporting materials
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Abstrakt

Three low molecular weight compounds bearing carbazole units (1,6-di{3-[2-(4-methylphenyl)vinyl]carbazol-9-yl}hexane and 9,9'-di{6-[3-(2-(4-methylphenyl)vinyl)-9-carbazol-9-yl]hexyl}-[3,3']bicarbazole) and phenoxazine structure (10-butyl-3,7-diphenylphenoxazine) were tested as hole-transporting materials in perovskite solar cells. Two of them were successfully applied as hole transporting layers in electroluminescent light emitted diodes. The examined compounds were high-thermally stable with decomposition temperature found at the range of 280–419 °C. Additionally, DSC measurement revealed that they can be converted into amorphous materials. The compounds possess adequate ionization potentials, to perovskite energy levels, being in the range of 5.15–5.36  eV. The significant increase in power conversion efficiency from 1.60% in the case of a device without hole-transporting layer, to 5.31% for device with 1,6-di{3-[2-(4-methylphenyl)vinyl]carbazol-9- yl}hexane was observed.

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Autorzy i Afiliacje

K. Gawlińska-Nęcek
Zbigniew Starowicz
ORCID: ORCID
D. Tavgeniene
G. Krucaite
S. Grigalevicius
Ewa Schab-Balcerzak
ORCID: ORCID
M. Lipiński

Advances in CZTS thin films and nanostructured

N. Ali R. Ahmed A. Bakhtiar-Ul-Haq Shaari
Opto-Electronics Review | 2015 | vol. 23 | No 2 | 137-142
Słowa kluczowe CZTS band gap PVD CVD nanostructured homo-junction
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Abstrakt

Already published data for the optical band gap (Eg) of thin films and nanostructured copper zinc tin sulphide (CZTS) have been reviewed and combined. The vacuum (physical) and non-vacuum (chemical) processes are focused in the study for band gap comparison. The results are accumulated for thin films and nanostructured in different tables. It is inferred from the re- view that the nanostructured material has plenty of worth by engineering the band gap for capturing the maximum photons from solar spectrum.

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Autorzy i Afiliacje

N. Ali
R. Ahmed
A. Bakhtiar-Ul-Haq Shaari

Impact of Aging Time on the Metallurgical Properties and Hardness Characteristics of an Al-Si-Mg-Cr Hypoeutectic Alloy Intended for Automotive Applications

V.V. Ramalingam K.V. Shankar B. Shankar R. Abhinandan A. Dineshkumar P.A. Adhithyan K. Velusamy A. Kapilan N. Sudheer
Archives of Foundry Engineering | 2024 | vol. 24 | No 2 | 137-142 | DOI: 10.24425/afe.2024.149281
Słowa kluczowe Al-Si-Mg Microstructure Hardness Eutectic
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Abstrakt

This research investigates the microstructural evolution and mechanical properties of LM25 (Al-Si-Mg) alloy and Cr-modified LM25-Cr (Al-Si-Mg-Cr) alloy. Microstructural analysis reveals distinctive ε-Si phase morphologies, with Cr addition refining dendritic structures and reducing secondary dendrite arm spacing in the as-cast condition. Cr modification results in smaller-sized grains and a modified ε-Si phase, enhancing nucleation sites and reducing ε-Si size. Microhardness studies demonstrate significant increases in hardness for both alloys after solutionising and aging treatments. Cr-enriched alloy exhibits superior hardness due to solid solution strengthening, and prolonged aging further influences ε-Si particle size and distribution. The concurrent rise in microhardness, attributed to refined dendritic structures and unique ε-Si morphology, underscores the crucial role of Cr modification in tailoring the mechanical properties of aluminium alloys for specific applications.
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Autorzy i Afiliacje

V.V. Ramalingam
1
K.V. Shankar
2
B. Shankar
2
R. Abhinandan
3
A. Dineshkumar
3
P.A. Adhithyan
3
K. Velusamy
3
A. Kapilan
3
N. Sudheer
3
  1. Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, 64112, India
  2. Department of Mechanical Engineering, Amrita Vishwa Vidyapeetham, Amritapuri, India; Centre for Flexible Electronics and Advanced Marerials, Amrita Vishwa Vidyapeetham, Amritapuri, India
  3. Department of Mechanical Engineering, Amrita Vishwa Vidyapeetham, Amritapuri, India

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