7,969 research outputs found
An optical fiber tip micrograting thermometer
An ~12 µm long Bragg grating was engraved in an ~5 µm diameter optical fiber tip by focused ion beam (FIB) milling. An ~10-dB extinction was achieved at 1570 nm with only 11 indentations. The grating was used for temperature sensing, and it exhibited a temperature sensitivity of ~22 pm/°C
catena-Poly[[tetraÂaquaÂmanganese(II)]-μ-5-carboxylÂato-1-carboxylÂatomethyl-2-oxidopyridinium-κ2 O 5:O 1]
In the title coordination polymer, [Mn(C8H5NO5)(H2O)4]n, the MnII atom is coordinated by two carboxylÂate O atoms from two 5-carboxylÂato-1-carboxylÂatomethyl-2-oxidopyridinium (L
2−) ligands and by four water molÂecules in a distorted octaÂhedral geometry. The L
2− ligands bridge the Mn atoms into an infinite chain motif along [100]; the chains are further interÂlinked by O—H⋯O hydrogen bonds into a three-dimensional supraÂmolecular net
n-SiO2 Embedded HA/TiO2 Composite Coatings Deposited on Pure Titanium Substrate by Micro-Arc Oxidation
MagicProp: Diffusion-based Video Editing via Motion-aware Appearance Propagation
This paper addresses the issue of modifying the visual appearance of videos
while preserving their motion. A novel framework, named MagicProp, is proposed,
which disentangles the video editing process into two stages: appearance
editing and motion-aware appearance propagation. In the first stage, MagicProp
selects a single frame from the input video and applies image-editing
techniques to modify the content and/or style of the frame. The flexibility of
these techniques enables the editing of arbitrary regions within the frame. In
the second stage, MagicProp employs the edited frame as an appearance reference
and generates the remaining frames using an autoregressive rendering approach.
To achieve this, a diffusion-based conditional generation model, called
PropDPM, is developed, which synthesizes the target frame by conditioning on
the reference appearance, the target motion, and its previous appearance. The
autoregressive editing approach ensures temporal consistency in the resulting
videos. Overall, MagicProp combines the flexibility of image-editing techniques
with the superior temporal consistency of autoregressive modeling, enabling
flexible editing of object types and aesthetic styles in arbitrary regions of
input videos while maintaining good temporal consistency across frames.
Extensive experiments in various video editing scenarios demonstrate the
effectiveness of MagicProp
Diagnostic value of urine sTREM-1 for sepsis and relevant acute kidney injuries: a prospective study
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