Results 201 to 210 of about 80,003 (301)

Characterization of a Portable Computed Tomography System for In Situ Analysis of Wooden Sculptures in Cultural Heritage

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Portable X‐ray computed tomography (portable CT) has become an important tool for the non‐destructive investigation of cultural heritage objects, particularly when in situ analysis is required. This work presents the experimental characterization and application of a transportable cone‐beam CT system designed for the inspection of large and ...
Anderson de Paula   +7 more
wiley   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244Cm$$ {}^{244}\mathrm{Cm} $$ sources, and come with severe concerns on radiation safety and ...
Leandro Silveri   +14 more
wiley   +1 more source

Multielemental Analysis in Rice Grains by Total Reflection X‐Ray Fluorescence

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Rice (Oryza sativa) is a staple food cultivated worldwide and represents a significant source of essential nutrients for humans. However, this cereal may also contain potentially toxic elements including chromium, arsenic, and lead typically present at trace concentrations (ng.g−1).
F. T. S. Tsuyama   +8 more
wiley   +1 more source

Testing the effects of presentation modality and presence of similarity percentages in the automatic image recognition system in Italy. [PDF]

open access: yesFront Psychol
Naser A   +7 more
europepmc   +1 more source

Integration of Micro‐CT and XRF Mapping for Multimodal 3D Analysis of Polychrome Wooden Artifacts

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Over the past 5 years, computer applications have become crucial to archeological research. Since the 1990s, the focus has transitioned from data management tools to the development of virtual models. Recently, digital documentation of cultural heritage has gained considerable focus, with 3D modeling of objects.
Josiane E. Cavalcante   +10 more
wiley   +1 more source

The House of Lords and Devolution: Already a Chamber of the Nations and Regions?

open access: yesThe Political Quarterly, EarlyView.
Abstract When it published its report in 2022, one of the main recommendations of the Brown Commission, established by the Labour Party to examine the future governance of the UK, was for the replacement of the House of Lords with an ‘assembly of the nations and regions’.
Adam Evans
wiley   +1 more source

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