Results 201 to 210 of about 615,528 (247)

Leveraging modified ex situ tomography data for segmentation of in situ synchrotron X‐ray computed tomography

open access: yesJournal of Microscopy, EarlyView.
Abstract In situ synchrotron X‐ray computed tomography enables dynamic material studies. However, automated segmentation remains challenging due to complex imaging artefacts – like ring and cupping effects – and limited training data. We present a methodology for deep learning‐based segmentation by transforming high‐quality ex situ laboratory data to ...
Tristan Manchester   +6 more
wiley   +1 more source

Application of Noise2Inverse and adaptation (Noise2Phase) to single‐mask x‐ray phase contrast micro‐computed tomography

open access: yesJournal of Microscopy, EarlyView.
Abstract X‐ray phase contrast imaging (XPCI), when implemented in micro‐computed tomography (micro‐CT) mode, offers high‐contrast 3D imaging of weakly‐attenuating material samples. In the so‐called single‐mask edge illumination approach, a mask with periodically spaced transmitting apertures is used to split the x‐ray beam into narrow beamlets; when ...
Khushal Shah   +8 more
wiley   +1 more source

Accessible range of motion characterisation of the OpenFlexure microscope

open access: yesJournal of Microscopy, EarlyView.
Abstract For any hardware to remain accessible, calibration techniques which rely on low‐cost and obtainable materials such as easily manufactured test slides are necessary. We present a method of measuring the range of motion of the OpenFlexure Microscope using minimal equipment and a computationally light algorithm suitable for running on embedded ...
Ben Chisholm   +4 more
wiley   +1 more source

Entangled Foodways and Livelihood Pathways: Cinnamon, State Interventions, and Everyday Life in Hmong Communities of Northern Vietnam

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT The agroecological practices of ethnic minority farmers in Vietnam's northern uplands are being reshaped by intersecting pressures of land‐use reform, market integration, and state‐backed crop promotion. Among Hmong communities in the south of Lào Cai Province (former Yên Bái Province) cinnamon was once valued primarily for its medicinal ...
Mélie Monnerat, Sarah Turner
wiley   +1 more source

No Cocoa Without Deforestation? A Field‐Type Analysis of Forest Frontiers in West Africa

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT This paper analyses the interrelations of production systems, class relations and deforestation in a smallholder forest frontier. Using the concept of field types, we provide a plot‐level analysis of deforestation processes in West Africa, where smallholders convert forest into cocoa farms.
Sarah Lena Graf   +5 more
wiley   +1 more source

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