Results 11 to 20 of about 4,875,232 (303)
Design of a Multipoint Cost-Effective Optical Instrument for Continuous In-Situ Monitoring of Turbidity and Sediment. [PDF]
Sensors (Basel), 2020 A cost-effective optical instrument for continuous in-situ monitoring applications is presented. With a production cost in raw materials of 38 €, a power consumption of 300 µA in sleep mode and 100 mA in active mode (5 ms reading), and a capacity to ...
Matos T +5 more
europepmc +2 more sources
Accelerated measurement of perikymata by an optical instrument. [PDF]
Biomed Opt Express, 2013 The proposed device considerably reduces the measuring time of important microscopic features of tooth crown surfaces. The instrumentation is accompanied by a computer program to analyse the results.
Elhechmi I +3 more
europepmc +2 more sources
A Novel High-Resolution Optical Instrument for Imaging Oceanic Bubbles
IEEE Journal of Oceanic Engineering, 2018 The formation of bubbles from breaking waves has a significant effect on air–sea gas transfer and aerosol production. Detailed data in situ about the bubble populations are required to understand these processes.
Raied Al-Lashi, Helen Czerski
exaly +2 more sources
A compact optical instrument with artificial neural network for pH determination. [PDF]
Sensors (Basel), 2012 The aim of this work was the determination of pH with a sensor array-based optical portable instrument. This sensor array consists of eleven membranes with selective colour changes at different pH intervals.
Capel-Cuevas S +7 more
europepmc +2 more sources
The Optical Corrector for the Dark Energy Spectroscopic Instrument [PDF]
Astronomical Journal, 2023 The Dark Energy Spectroscopic Instrument (DESI) is currently measuring the spectra of 40 million galaxies and quasars, the largest such survey ever made to probe the nature of cosmological dark energy.
T. Miller +46 more
semanticscholar +1 more source
Light: Advanced Manufacturing, 2021 Digital holography possesses the advantages of wide-field, non-contact, precise, and dynamic measurements for the complex amplitude of object waves. Today, digital holography and its derivatives have been widely applied in interferometric measurements ...
Jiwei Zhang +5 more
semanticscholar +1 more source
The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope. I. Overview of the instrument and its capabilities [PDF]
Astronomy & Astrophysics, 2022 We provide an overview of the design and capabilities of the near-infrared spectrograph (NIRSpec) onboard the James Webb Space Telescope. NIRSpec is designed to be capable of carrying out low-resolution ($R\!=30\!-330$) prism spectroscopy over the ...
P. Jakobsen +70 more
semanticscholar +1 more source
Journal of Physics, Conference Series, 2021 The optical instrument topic is considered difficult because of its abstract nature, and it involves mathematics so that it resulted in the low critical thinking abilities (CTA) on students.
Parno +6 more
semanticscholar +1 more source
A Novel Strategy for Rapid Fluorescence Detection of FluB and SARS-CoV-2
Molecules, 2023 Undoubtedly, SARS-CoV-2 has caused an outbreak of pneumonia that evolved into a worldwide pandemic. The confusion of early symptoms of the SARS-CoV-2 infection with other respiratory virus infections made it very difficult to block its spread, leading to
Zhijin Yang +8 more
doaj +1 more source
3D free-assembly modular microfluidics inspired by movable type printing
Microsystems & Nanoengineering, 2023 Reconfigurable modular microfluidics presents an opportunity for flexibly constructing prototypes of advanced microfluidic systems. Nevertheless, the strategy of directly integrating modules cannot easily fulfill the requirements of common applications ...
Shaoqi Huang +9 more
doaj +1 more source