Zobrazeno 1 - 10
of 34 719
pro vyhledávání: '"UV–VIS"'
Publikováno v:
Revista Eureka sobre Enseñanza y Divulgación de las Ciencias, Vol 21, Iss 3, Pp 340101-340108 (2024)
El artículo presenta un fotómetro de bajo costo para la enseñanza experimental, diseñado para determinar cromo hexavalente en soluciones acuosas, basado en la detección de iones cromato de color amarillo con una luz ultravioleta a 373 nm. E
Externí odkaz:
https://doaj.org/article/15917537d91c48038ce96f85660b7aac
Autor:
I. V. Danilin, V. A. Kholodov, A. R. Ziganshina, N. A. Danchenko, A. D. Buriak, Yu. R. Farkhodov, N. V. Yaroslavtseva
Publikováno v:
Бюллетень Почвенного института им. В.В. Докучаева, Vol 0, Iss 0, Pp 73-104 (2024)
The goal of the work was to assess changes in microbial carbon content and the properties of dissolved organic matter (DOM) of the Poa pratensis L. rhizopshere in response to the effects of soil drying and waterlogging. The vegetation experiment with
Externí odkaz:
https://doaj.org/article/595d27467ebe441aa63eaae7e60ea457
Publikováno v:
BMC Chemistry, Vol 18, Iss 1, Pp 1-13 (2024)
Abstract This study represents a comparison among the performances of four multivariate procedures: partial least square (PLS) and artificial neural networks (ANN) in addition to support vector regression (SVR) and extreme gradient boosting (XG Boost
Externí odkaz:
https://doaj.org/article/9f1c1343a9e74c53b0b827fd99b2c718
Autor:
Nastaran Parsafard, Ghazaleh Aghajari
Publikováno v:
BMC Chemistry, Vol 18, Iss 1, Pp 1-10 (2024)
Abstract This study presents the development and optimization of La@SnO2–CaO composite catalysts for efficient photocatalytic degradation of malachite green dye in aqueous solutions under UV–vis light irradiation. The catalysts were prepared via
Externí odkaz:
https://doaj.org/article/06a266cb4acf4924b40f47cc96979f3c
Autor:
Kintali Manohor Prasad, P. Srinivasan
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract The fascinating electronic applications attracted researchers to explore the field of nonlinear optical (NLO) materials. The slow evaporation of solvent technique (SEST) was employed to grow the 2-cyanopyridinium perchlorate (2-CPPC) NLO sin
Externí odkaz:
https://doaj.org/article/2570c12f1d7b4d9f9ce3ed15f2f9d956
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-24 (2024)
Abstract Modern laboratory medicine relies on analytical instruments for bacterial detection, focusing on biosensors and optical sensors for early disease diagnosis and treatment. Thus, Density Functional Theory (DFT) was utilized to study the reacti
Externí odkaz:
https://doaj.org/article/16e855563b1a4916b6f24a04530d9279
Autor:
Nastaran Parsafard, Zahra Shoorgashti
Publikováno v:
Applied Water Science, Vol 14, Iss 10, Pp 1-12 (2024)
Abstract Herein, La@MxOy/TiO2 (M = V, Cr, Mn and Fe) composite catalysts were prepared based on the sol–gel method as an effective adsorbent and photocatalyst for the degradation of malachite green from an aqueous solution under UV–Vis light. Und
Externí odkaz:
https://doaj.org/article/d47f69d1a39f489ea56655e5bc21babd
Studies on structural, optical, thermal and low energy shielding for gamma rays for the ZSBP glasses
Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 9, Pp 3796-3803 (2024)
By employing the melt-quenching technique, the ZnO–SrO–B2O3–PbO (ZSBP) glasses have been successfully fabricated. The derivative of Absorption Spectra Fitting (DASF) method was used to study the energy band gap (Eg) of the glasses which decreas
Externí odkaz:
https://doaj.org/article/226ca438b96e40529ef2448ececcb6db
Autor:
Anna Szekeres, Sashka Alexandrova, Mihai Anastasescu, Hermine Stroescu, Mariuca Gartner, Peter Petrik
Publikováno v:
Micro, Vol 4, Iss 3, Pp 426-441 (2024)
Nanoscale oxides grown in c-silicon, implanted with low-energy (2 keV) H+ ions and fluences ranging from 1013 cm−2 to 1015 cm−2 by RF plasma immersion implantation (PII), have been investigated. The oxidation of the implanted Si layers proceeded
Externí odkaz:
https://doaj.org/article/dbb68e48a7e44addb3220f9bf75b3493
Autor:
Veronica D’Eusanio
Publikováno v:
Analytica, Vol 5, Iss 3, Pp 311-321 (2024)
Watermelon suffers substantial post-harvest losses owing to strict quality standards, resulting in 20–30% of the crop being left unharvested. This study investigated the potential of valorizing dried watermelon pomace (DWP), a byproduct of watermel
Externí odkaz:
https://doaj.org/article/7fac4b3c8444474296c0239dff91065a