Results 31 to 40 of about 253,971 (308)

In-situ observation and atomic resolution imaging of the ion irradiation induced amorphisation of graphene

open access: yes, 2014
Ion irradiation has been observed to induce a macroscopic flattening and in-plane shrinkage of graphene sheets without a complete loss of crystallinity.
Greaves, Graeme   +10 more
core   +1 more source

Design of experiments methodology in studying near-infrared spectral information of model intact tablets : simultaneous determination of metoprolol tartrate and hydrochlorothiazide in solid dosage forms and powder compressibility assessment using near-infrared spectroscopy [PDF]

open access: yes, 2015
Near-infrared spectroscopy (NIRS) is applied in pharmaceutical industry for monitoring drug content during tablet manufacturing process. NIRS method, once developed and validated, is used over years and it is of critical importance to insure method ...
Vranic, Branko Z.
core   +1 more source

Detection of Water Content of Watermelon Seeds Based on Hyperspectral Reflection Combined with Transmission Imaging

open access: yesAgriculture
Watermelon is a widely cultivated fruit and vegetable that is native to Africa and has become one of the world’s important summer fruits. Watermelon seed vigor has a critical impact on watermelon planting and yield, and seed water content is a key factor
Siyi Ouyang, Siwei Lv, Bin Li
doaj   +1 more source

Infrared transmission spectra for extrasolar giant planets [PDF]

open access: yes, 2007
Among the hot Jupiters known to date that transit their parent stars, the two best candidates to be observed with transmission spectroscopy in the mid-infrared (MIR) are HD 189733b and HD 209458b, due to their combined characteristics of planetary ...
Vidal-Madjar, A.   +17 more
core   +1 more source

Antioxidant activity and sun screening effects of Bacterial melanin

open access: yesJournal of BioScience and Biotechnology, 2020
The present work was delineated to formulate and evaluate antioxidant and photoprotective properties of melanin produced by Pseudomonas mosseliistrain STSGRDS1 against the purchased fungal melanin STSGRDM1 as standard. Initially,
Sharmila D.Srimathi   +5 more
doaj  

Extracting Complex Dielectric Properties From Reflection-Transmission Mode Spectroscopy

open access: yesIEEE Access, 2018
Material characterization of homogeneous dielectric slabs using reflection-transmission mode spectroscopy can be problematic due to the ambiguity from a phasor term.
Jingye Sun, Stepan Lucyszyn
doaj   +1 more source

Characterization of the structures of size-selected TiO2 nanoparticles using x-ray absorption spectroscopy

open access: yes, 2019
To investigate the relationship between the size and structure of TiO2 nanoparticles, three size-selected samples of TiO2 nanoparticles were prepared via a hydrolysis method that uses Ti[OCH(CH3)(2)](4) as the starting material.
Choi, HC   +6 more
core   +1 more source

Transmission spectroscopy and Rossiter-McLaughlin measurements of the young Neptune orbiting AU Mic

open access: yes, 2020
AU Mic b is a Neptune-sized planet on an 8.47-day orbit around the nearest pre-main sequence (~20 Myr) star to the Sun, the bright (V = 8.81) M dwarf AU Mic.
J. Strachan   +21 more
core   +1 more source

Transformation of aqueous protein attenuated total reflectance infra-red absorbance spectroscopy to transmission

open access: yesQRB Discovery, 2020
Infrared (IR) spectroscopy is increasingly being used to probe the secondary structure of proteins, especially for high-concentration samples and biopharmaceuticals in complex formulation vehicles.
Alison Rodger   +4 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

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