Results 61 to 70 of about 183,762 (345)

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

open access: yesAdvanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu   +14 more
wiley   +1 more source

Towards a global arctic-alpine model for Near-infrared reflectance spectroscopy (NIRS) predictions of foliar nitrogen, phosphorus and carbon content

open access: yesScientific Reports, 2019
Near-infrared spectroscopy (NIRS) is a high-throughput technology with potential to infer nitrogen (N), phosphorus (P) and carbon (C) content of all vascular plants based on empirical calibrations with chemical analysis, but is currently limited to the ...
F. J. Murguzur   +6 more
semanticscholar   +1 more source

Near-infrared technology in agriculture: Rapid, simultaneous, and non-destructive determination of inner quality parameters on intact coffee beans

open access: yesOpen Agriculture
This study delves into the ability of near infrared (NIR) techniques by means of a self-developed portable sensing device near-infrared reflectance spectroscopy (NIRS) i16 USK instrument to accurately predict the moisture content (MC) and chlorogenic ...
Munawar Agus Arip   +4 more
doaj   +1 more source

Diversity and distribution of nirS-type denitrifiers as a biological indicator in response to environmental gradients in the eutrophied Haizhou Bay, China

open access: yesEnvironmental Pollutants & Bioavailability, 2019
Denitrifying bacterial communities play an important role in nitrogen removal. The diversity, abundance and distribution of denitrifiers can be applied in eutrophication assessment for the bay ecosystems.
Chunyan Wang   +5 more
doaj   +1 more source

Determination of the Mineral Composition (Ca, P, Mg, K, Na) in Cheeses (Cow's, Ewe's and Goat's) with Different Ripening Times using Near Infrared Spectroscopy (NIRs) with a Fibre-Optic Probe

open access: yesCzech Journal of Food Sciences, 2009
In the present work we study the use of NIRS technology together with the use of a remote reflectance fibre-optic probe (with a 5 cm × 5 cm quartz window) for the determination of mineral composition (Ca, P, Mg, K, Na) in 227 samples of cheeses ...
I. González-Martín   +5 more
doaj   +1 more source

An Insidious Threat for Cerebral Oxygenation: Neonatal Hypoglycemia

open access: yesÇocuk Dergisi, 2023
Purpose: Neonatal hypoglycemia (NH) is frequent in neonatology practice. This study aimed to evaluate the regional cerebral tissue oxygenation and cerebral blood flow in neonates who developed NH immediately after birth.
Beril Yaşa   +5 more
doaj   +1 more source

Fibrous Pb(II)‐Based Coordination Polymer Operable as a Photocatalyst and Electrocatalyst for High‐Rate, Selective CO2‐to‐Formate Conversion

open access: yesAdvanced Functional Materials, EarlyView.
A coordination polymer [Pb(tadt)]n prepared by a microwave‐assisted solvothermal method selectively reduces CO2 into formate under visible light with a high apparent quantum yield of ≈25% at 400 nm. It can function as a pre‐catalyst, along with conductive Ketjen Black, to form an active PbCO3/Pb3(CO3)2(OH)2 mixture that exhibits a high Faradaic ...
Chomponoot Suppaso   +8 more
wiley   +1 more source

Using selective NIR wavelengths in portable devices to evaluate the chemical composition of cattle feeds

open access: yesItalian Journal of Animal Science
In modern cattle nutrition, the estimation of chemical composition must be accurate, rapid, and available throughout the farm feeding process. This goal can be achieved using portable near infra-red instruments applied at several positions in the feeding
Lorenzo Serva   +8 more
doaj   +1 more source

3D Printed Ultra‐Fast Plastic Scintillators Based on Perovskite‐Photocurable Polymer Composite

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The demand for radiation detection is increasing in a number of fields, including high‐energy physics, medical imaging, and homeland security. This study serves to demonstrate the potential for the fabrication of fast perovskite‐based scintillators with complex shapes via stereolithographic additive manufacturing, representing a new path toward the ...
Antonella Giuri   +16 more
wiley   +1 more source

Evaluation of hyperspectral NIRS for quantitative measurements of tissue oxygen saturation by comparison to time-resolved NIRS.

open access: yesBiomedical Optics Express, 2019
Near-infrared spectroscopy (NIRS) is considered ideal for brain monitoring during preterm infancy because it is non-invasive and provides a continuous measure of tissue oxygen saturation (StO2).
Matthew Kewin   +6 more
semanticscholar   +1 more source

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