http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Hedhili Fekhra,Hassan Belqees,Rashid M.S.,Bakr Mohammed,Mahmood Q.,M. Al-Shomar Shereen,Alahmad Waed,Alimi Fathi,Mechi Lassaad 한국물리학회 2023 Current Applied Physics Vol.53 No.-
The inorganic double perovskites are remarkable materials for renewable energy which can be realized through solar cells and thermoelectric generators. Here, we have comprehensively elaborated the stability, mechanical, thermodynamic, optical and transport characteristics. The formation energy is computed to ensure thermodynamic validity and the tolerance factor is assessed for structural existence. The elastic constants satisfied the Born criteria and mechanical stability. Naviera’s velocities have been used to study the Debye temperature and directional lattice conductivity. Modifying the band gap from 3.1 to 0.58 eV by halide ions (Cl to I) probes the distinct optoelectronic characteristics. Absorption bands, dispersion of light energy, refraction, and optical loss explain the optical characteristics. In addition, the above thermoelectric factors like conductivities, Seebeck effect, and performance are studied in the temperature range of 100–600 K. Large figure of merit and extremely low lattice vibration at room temperature indicate their significance for thermoelectric devices.
Entesar A. Hassan,Hamada M. Mashaly,Zeinab M. Hashem,Salem E. Zayed,Ahmed M. Abo-Bakr 한국섬유공학회 2022 Fibers and polymers Vol.23 No.9
A series of varying and poly-functionalized heterocyclic compounds 3a-c, 4d-k, 6a,b, 8, 9, and 12 containing azofunction have been synthesized using 2-(1-(4-aminophenyl)ethylidene)malononitrile (1) and/or its diazonium salt as buildingblocks. In addition, new pyridazine derivatives 4a-c, 7a,b, and 13a-f were synthesized. Subsequent treating of the resultedazo dyes moieties with different reagents in conventional and green conditions using microwave irradiation and shrimp chitinas a green catalyst; homo- and hetero-molecules containing azo dyes were gathered. The obtained azo dyes were applied onfabrics at high temperatures and their properties such as washing fastness using standard soap (SDS) and rubbing fastness(wet and dry) under controlled conditions of pressure, speed, and moisture were studied. In addition, they were screened fortheir biological activities on two bacterial and two mycolic species. The synthesized products were characterized by theirelemental and spectral analyses such as IR, MS, 1H-NMR, and 13C-NMR spectra. The produced dyestuffs 3a-c, 4d, f, h, i, j,6a,b, 8, and 12 were dyed on polyester fabrics, and subsequently their dyeing properties and their light, washing, perspiration,rubbing, and sublimation fastness was determined and the dyed samples showed very good fastness levels to rubbing,washing, thermal fixation, good light, and possessed very good perspiration fastness.