Results 61 to 70 of about 20,857 (202)

THE RESEARCH OF VARIATION OF THE PERIOD AND PRECESSION OF THE ROTATION AXIS OF EGS (AJISAI) SATELLITE BY USING PHOTOMETRIC MEASUREMENT

open access: yesOdessa Astronomical Publications, 2014
The light curves of EGS Ajisai with temporal resolution of 20 ms referred to the time scale UTC (GPS) with an error of at most 0.1 ms were obtained. The observed flashes are produced when the mirrors which cover the spinning satellite’s surface reflect ...
N. Burlak   +5 more
doaj   +1 more source

Anterior cingulate cortex neuron subtypes differentially regulate seizures

open access: yesEpilepsia, EarlyView.
Abstract Objective This study aimed to investigate the regulatory roles of distinct neuronal subtypes within the anterior cingulate cortex (ACC) in acute seizures and to identify cell type‐specific mechanisms underlying seizure modulation in this region. Methods Acute seizure models were established in mice via pentylenetetrazol injection.
Ziqian Yan   +12 more
wiley   +1 more source

High-Quality Multi-Emitter LED-Based Retrofits for Incandescent Photometric A Illuminant Reliability of R2 Evaluation

open access: yesApplied Sciences
This research deals with the design problems of LED-based spectrally tunable light sources (LSTLSs). The study aims to assess the reliability of popular models for the spectral modeling of LED radiation and a typically used curve-fitting criterion (R2 ...
Urszula J. Błaszczak, Łukasz Gryko
doaj   +1 more source

A Cubesat Payload for Exoplanet Detection

open access: yesSensors, 2017
The search for undiscovered planets outside the solar system is a scientific topic that is rapidly spreading into the astrophysical and engineering communities. In this framework, the design of an innovative payload to detect exoplanets from a nano-sized
Marcella Iuzzolino   +5 more
doaj   +1 more source

Nutraceutical Benefits of Anchomanes difformis Rhizome and Its Effects on Blood Glucose and Hepatorenal Function in Normoglycemic Rats

open access: yesFood Chemistry International, EarlyView.
Scientific analysis of Anchomanes difformis roots confirms significant nutraceutical potential, containing high levels of carbohydrates, proteins, and essential minerals. Phytochemical screening revealed antioxidants such as phenols and flavonoids, and although the extracts effectively lowered plasma glucose, safety testing showed dose‐dependent risks.
Lawrence Folorunso Dada   +2 more
wiley   +1 more source

LASER INFORMATION SYSTEM FOR MONITORING GLUE EVAPORATION DURING DRYING

open access: yesКомпютерні системи та інформаційні технології
In the context of advancing technologies in printing, materials processing, and chemical production, there is a growing demand for precision in monitoring volatile emissions generated during drying processes.
Ольга ФЕДЕВИЧ
doaj   +1 more source

An Optimized Colorimetric Readout Method for Lateral Flow Immunoassays

open access: yesSensors, 2018
Despite its broad penetration of various markets, the quantitative lateral flow immunoassay (LFIA) suffers from sensitivity issues in some cases. To solve this problem, an optimized colorimetric readout method for LFIA quantification is proposed in this ...
Jongwon Park
doaj   +1 more source

Body‐integrated photonic biosensors: Illuminating the path to active healthcare

open access: yesFlexMat, EarlyView.
Body‐integrated photonic biosensors are promising tools for active healthcare. These optical devices can be worn, implanted, or swallowed to monitor health signals continuously. This review introduces key sensing modalities, including fluorescence, colorimetry, SPR, LSPR, SERS, and light‐modulating materials.
Jiayue Gu   +10 more
wiley   +1 more source

SPECTRAL AND PHOTOMETRIC STUDIES OF MRK6 AND MRK1040 IN THE OPTICAL RANGE

open access: yesEurasian Physical Technical Journal
This paper is dedicated to the study of variability in active galactic nuclei, which play a key role in understanding the physical processes occurring in their central regions.
S.A. Shomshekova   +5 more
doaj   +1 more source

PHOTOMETRY

open access: yes, 2014
Citation: 'photometry' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.P04625 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +2 more sources

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