Thangkas are sacred artifacts; therefore, conducting scientific examinations of these paintings is not common. Based on this significant ethical challenge, a study published in the journal Heritage proposed a non-invasive three-stage technique that carefully investigates each layer of the painting, successfully assessing various production stages such as color notations, underdrawing, and painting techniques.
In an article published in the journal Remote Sensing, the researchers used Sentinel-2/Multispectral Instrument (MSI) imagery data to a calibrated ocean chlorophyll 2-band (OC-2) model to retrieve chlorophyll-a (chl-a) concentration in the Ha Long bay from 2019 to 2021.
A pre-proof study in the Journal of Aerosol Science employs a series of spark discharges in a flowing gas environment to repeatedly manufacture silver nanoparticles using the hydrogen-assisted spark generation technique. Various compositions of H2-Ar mixtures were used as the carrier gas to comprehensively study how the hydrogen concentration affects the signal amplification achieved with silver nanoparticles in Raman spectroscopic investigations.
By Usman Ahmed
29 Sep 2022
An article published in Sensors reveals fluorescence lifetime imaging (FLIM), an important tool that provides unique information for biomedical research. The FLIM-MLP-Mixer, a multi-layer perceptron-based mixer (MLP Mixer), and a deep learning (DL) technique are used for quick and reliable fluorescence lifetime imaging analysis.
By Pritam Roy
29 Sep 2022
A metasurface device that can show three different types of images based on the illumination source has been created by researchers.
A study published in Biosensors gives an overview of silicon photomultipliers and their potential in clinical and bio-photonic applications. It also compared the silicon photomultipliers with different photodetectors based on their circuit design parameters.
Spray ionization using electroactive polymers (EAP) for ambient ionization mass spectrometry (MS) has been proposed as an efficient technique for rapidly analyzing small samples with high accuracy.
By Ilamaran Sivarajah
28 Sep 2022
Rohde & Schwarz is adding a completely new series to its oscilloscope portfolio that delivers a number of industry firsts. The new R&S MXO 4 series oscilloscopes feature the world’s fastest real-time update rate of over 4.5 million acquisitions per second.
In an article published in the Canadian Journal of Remote Sensing, researchers demonstrated that crop classifications from RADARSAT Constellation Mission (RCM) Compact Polarimetric (CP) imagery could be made with high accuracy, supporting prior findings that were based on simulated CP data.
Techniques for identification, screening, and monitoring of respiratory disease have come under the limelight as a result of the recent outbreak of coronavirus disease (COVID-19). A recent study published in Sensors determines the possibility of gathering respiratory signals from a wearable near-infrared spectroscopy (NIRS) sensor.
By Usman Ahmed
28 Sep 2022
Optical Surfaces Ltd. is a leading producer of on-axis parabolic mirrors for ground-breaking applications in fundamental, high-power laser physics research.
A paper recently published in Biosensors demonstrated the feasibility of using a new method based on hyperspectral microscopic imaging technology and machine learning for skin cancer diagnosis.
By Samudrapom Dam
28 Sep 2022
Optical Gaging Products (OGP®), a world-leading manufacturer of optical and precision multisensor metrology systems for industrial quality control, announces the addition of the new TurnCheck Series-14 to its family of TurnCheck Shaft Measurement Systems – increasing the range of TurnCheck systems to handle parts up to 140 mm in diameter and 1000 mm in length.
In a study published in Chemosensors, researchers developed a luminescent chemosensor to identify and measure the concentrations of organophosphate pesticides in various water samples. The sensor is flexible enough to be easily modified to accommodate the ever-expanding list of new pesticides.
In a study published in the Journal of Clinical Medicine, researchers used swept-source and en-face optical coherence tomography angiography images to investigate the morphological changes and density of macrophage-like cells located in the vitreoretinal interface in retinal vein occlusion-affected eyes.