Results 41 to 50 of about 1,069,438 (262)

An Autonomous Global Star Identification Algorithm Based on the Fast MST Index and Robust Multi-Order CCA Pattern

Remote Sensing, 2023
Star identification plays a key role in spacecraft attitude measurement. Currently, most star identification algorithms tend to perform well only in a scene without noise and are highly sensitive to noise.
Zijian Zhu, Yuebo Ma, Bingbing Dan, Enhai Liu, Zifa Zhu, Jinhui Yi, Yuping Tang, Rujin Zhao   +7 more
doaj   +1 more source

Sensitive Manipulation [PDF]

, 2007
PhD thesisThis thesis presents an effective alternative to the traditionalapproach to robotic manipulation. In our approach, manipulation ismainly guided by tactile feedback as opposed to vision.
Torres-Jara, Eduardo
core  

Integrating vision, haptics and proprioception into a feedback controller for in-hand manipulation of unknown objects [PDF]

, 2013
Li Q, Elbrechter C, Haschke R, Ritter H. Integrating vision, haptics and proprioception into a feedback controller for in-hand manipulation of unknown objects.
Elbrechter, Christof, Ritter, Helge ; https://orcid.org/, Haschke, Robert ; https://orcid.org/, Robert Haschke, Helge Ritter, Christof Elbrechter, Qiang Li, Li, Qiang ; https://orcid.org/   +7 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

A Method Based on Time-Scale Factor for Correcting the Nonlinear Frequency Sweeping in an OFDR System

IEEE Photonics Journal, 2019
A data processing method for correcting the frequency sweeping nonlinearity of a tunable laser in an optical frequency domain reflectometry system is presented.
Jingjing Xing, Ying Zhang, Feng Wang, Kunpeng Feng, Yixin Zhang, Zhijun Yan, Xuping Zhang   +6 more
doaj   +1 more source

Towards Manipulation of Unknown Objects [PDF]

, 2012
Li Q, Haschke R, Ritter H, Bolder B. Towards Manipulation of Unknown Objects. Presented at the 10th International IFAC Symposium on Robot Control, Dubrovnik, Croatia.We propose a simple but efficient control strategy to manipulate objects of unknown ...
Bolder, Bram, Ritter, Helge ; https://orcid.org/, Haschke, Robert ; https://orcid.org/, Li, Qiang ; https://orcid.org/   +3 more
core  

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Light-controlled soft bio-microrobot

Light: Science & Applications
Micro/nanorobots hold exciting prospects for biomedical and even clinical applications due to their small size and high controllability. However, it is still a big challenge to maneuver micro/nanorobots into narrow spaces with high deformability and ...
Jianyun Xiong, Xing Li, Ziyi He, Yang Shi, Ting Pan, Guoshuai Zhu, Dengyun Lu, Hongbao Xin   +7 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source