Results 31 to 40 of about 26,586 (117)

Nano-precision metrology of X-ray mirrors with laser speckle angular measurement

open access: yesLight: Science & Applications, 2021
A versatile high precision metrology instrument has been developed that surpass the limits of existing metrology techniques and opens up new possibilities to develop next-generation super-polished X-ray mirrors.
Hongchang Wang   +2 more
doaj   +1 more source

A brief history of metrology: past, present, and future

open access: yesInternational Journal of Metrology and Quality Engineering, 2019
In this paper, we take the freedom to paraphrase Stephen Hawking's well-known formula and approach, for a reflection about metrology. In fact, metrology has a past, a present, and a future. The past is marked by a rich series of events, of which we shall
Fanton Jean-Pierre
doaj   +1 more source

Econometric Modelling of the Impact of Metrology on the Economy in Poland

open access: yesFolia Oeconomica Stetinensia
Studying the impact of metrology on the economy is a complicated matter. This is due to the specific nature of both metrology and the economy. There is no established method for determining the impact of metrology on the economy.
Doszyń Mariusz   +6 more
doaj   +1 more source

Management of metrology in measuring of the displacement of building construction [PDF]

open access: yesActa Montanistica Slovaca, 2007
The metrology management of the measurement of the displacement of building construction is not regulated in the standard ČSN ISO 73 0405 - Measurement of the displacement of building construction.
Jiří Kratochvíl
doaj  

2D Super‐Resolution Metrology Based on Superoscillatory Light

open access: yesAdvanced Science
Progress in the semiconductor industry relies on the development of increasingly compact devices consisting of complex geometries made from diverse materials.
Yu Wang   +5 more
doaj   +1 more source

Optical metrology for immersed diffractive multifocal ophthalmic intracorneal lenses [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
This paper deals with the optical characterization of diffractive multifocal Intra-Corneal Lenses (ICLs) that we have developed in order to correct presbyopia.
Tankam P.   +3 more
doaj   +1 more source

A Smart Metrology Laboratory Environmental Monitoring and Recognition Method Based on Digital Twin and Improved Transformer

open access: yesThe Journal of Engineering
Aiming at the problems of poor reliability and low visualization in the monitoring of power metrology laboratories, a smart power metrology laboratory environmental monitoring and recognition method based on digital twins and improved Transformer is ...
Zuo Wang   +3 more
doaj   +1 more source

Synthetic adjacent pulse repetition interval length method to solve integer ambiguity problem: theoretical analysis [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2013
This paper describes a novel approach for realizing femtosecond optical frequency comb (FOFC)-based length measurement. This approach is based on the analogy between the phase unwrapping problem and the integer ambiguity problem. Because the conventional
Wei D., Takamasu K., Matsumoto H.
doaj   +1 more source

Eurachem—A Focus for Analytical Chemistry in Europe

open access: yesProceedings, 2020
Established in 1989, the aim of Eurachem is to provide a focus for analytical chemistry and [...]
Vicki J Barwick
doaj   +1 more source

An alternative approach to the tomographic reconstruction of smooth refractive index distributions [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2013
Continuous, mathematically smooth Phase Objects with radial symmetry are reconstructed from cross sections of their refractive index distribution by a novel method, consisting of a linear combination of Gaussian basis functions, whose technical details ...
de la Rosa-Miranda E.   +8 more
doaj   +1 more source

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