Results 111 to 120 of about 226,839 (310)
The Bureau International des Poids et Mesures: establishing standards in the physical sciences [PDF]
, 2002 In a vault on the outskirts of Paris, a cylinder of platinum-iridium sits in a safe under three layers of glass. It is the kilogram, kept by the Bureau International des Poids et Mesures (BIPM), which is the international home of metrology.
Mills, Ian
core
Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators
Advanced Materials, EarlyView.Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng +11 more
wiley +1 more source
The Three Most Common Needs for Training on Measurement Uncertainty
Measurement Science ReviewMeasurement uncertainty is essential for assessing, stating and improving the reliability of measurements. An understanding of measurement uncertainty is the basis for confidence in measurements and is required by many communities, including national ...
Klauenberg Katy +3 more
doaj +1 more source
Advanced Materials Interfaces, EarlyView.Self‐assembled CoO nanobeads on the Van der Waals surface of PtTe2 were synthesized through simple thermal annealing utilizing the residual oxygen in the annealing chamber. In this study, the electrocatalytic effect for oxygen evolution reaction from CoO nanobeads on conducting PtTe2 was confirmed, elucidating the new pathway to design a ...
Minhyuk Choi +9 more
wiley +1 more source
Interval estimations in metrology
, 2014 This paper investigates interval estimation for a measurand that is known to be positive. Both the Neyman and Bayesian procedures are considered and the difference between the two, not always perceived, is discussed in detail. A solution is proposed to a
Mana, Giovanni, Palmisano, CArlo
core +1 more source
Development of High‐Performance Multilayer Monochromators
Advanced Optical Materials, EarlyView.Detailed insights into the optical and multilayer design of Double Multilayer Monochromators (DMM) are presented and fully characterized, including key optimization strategies and solutions to fabrication challenges. By integrating in‐house Ion Beam Figuring and a high uniformity multilayer coating process, the developed DMMs achieve high reflectivity,
Wadwan Singhapong +11 more
wiley +1 more source
The Lighting Environment, Its Metrology, and Non-visual Responses
Frontiers in Neurology, 2020 International standard CIE S 026:2018 provides lighting professionals and field researchers in chronobiology with a method to characterize light exposures with respect to non-visual photoreception and responses.
L. Schlangen, L. Price
semanticscholar +1 more source
Photonic Hybrid Integration: Strategies and Promises of Advanced Additive Manufacturing
Advanced Optical Materials, EarlyView.Heterogeneous photonic integration combines wafer bonding, transfer printing, and advanced multi‐photon lithography to realize compact, adaptable photonic systems. This review highlights breakthroughs in hybrid materials, metrology, and 4D printing, revealing how the convergence of traditional and emerging fabrication unlocks scalable, high‐performance
Zhitian Shi +3 more
wiley +1 more source
Study on silicon drift detector efficiency using Monte–Carlo simulation and experimental methods
The Journal of Engineering, 2019 The energy calibration and efficiency calibration of one silicon drift detector (SDD) are introduced here. The energy calibration is achieved using four radioactive sources, and the linear correlation coefficient is close to one.
Siming Guo +7 more
doaj +1 more source