Results 71 to 80 of about 273,921 (293)

Discrete Mechanics and Optimal Control for Space Trajectory Design [PDF]

, 2011
Space trajectory design is often achieved through a combination of dynamical systems theory and optimal control. The union of trajectory design techniques utilizing invariant manifolds of the planar circular restricted three-body problem and the optimal ...
Moore, Ashley
core   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

High-Precision Geolocation of SAR Images via Multi-View Fusion Without Ground Control Points

Remote Sensing
Synthetic Aperture Radar (SAR) images generated via range-Doppler (RD) model-based geometric correction often suffer from non-negligible systematic geolocation errors due to cumulative impacts of platform positioning inaccuracies, payload time ...
Anxi Yu, Huatao Yu, Yifei Ji, Wenhao Tong, Zhen Dong   +4 more
doaj   +1 more source

A High-Precision Positioning Method Without Ground Control Points for Mosaic Aerial Survey Camera [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Mosaic aerial survey cameras facilitate large-format imaging by integrating multiple lenses and sensors. Nevertheless, the inherent complexity of their structural design gives rise to collimation axis eccentricity errors between the Position and ...
C. Yu, X. Liu, Y. Duan
doaj   +1 more source

Fagradalsfjall (Iceland) 2021 Eruption Ground Control Points (GCPs)

, 2022
This item contains the names and location of Ground Control Points (GCPs) used to georeference UAS surveys conducted during the 2021‒2022 eruption Fagradalsfjall eruption in Iceland.
Michael Steven Christoffersen (10063615), Birgir Óskarsson (13900482), Guðmundur Valsson (13900483), William Moreland (13900485), Christopher W. Hamilton (9362888), Joana Ruth Charlotte Voigt (9385037), Nathan Hadland (13900488), Alexia Kubas (13900492), Brett Carr (13555234)   +8 more
core   +1 more source

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

FEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Ground reference points in legged locomotion: Definitions, biological trajectories and control implications

, 2005
The Zero Moment Point (ZMP) and Centroidal Moment Pivot (CMP) are important ground reference points used for motion identification and control in biomechanics and legged robotics. Using a consistent mathematical notation, we define and compare the ground
Hugh Herr, Marko B., Marko B. Popovic
core   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Bundled-Images Based Geo-Positioning Method for Satellite Images Without Using Ground Control Points

Remote Sensing
Bundle adjustment without Ground Control Points (GCPs) using stereo remote sensing images represents a reliable and efficient approach for realizing the demand for regional and global mapping.
Zhenling Ma, Yuan Chen, Xu Zhong, Hong Xie, Yanlin Liu, Zhengjie Wang, Peng Shi   +6 more
doaj   +1 more source