Results 91 to 100 of about 1,576,156 (288)
A Factor Graph Approach for Attitude Estimation of Spacecraft Using a Stellar Gyroscope
IEEE Access, 2019 A stellar gyroscope is an attitude sensor that is composed of a micro star sensor and a micro-electro-mechanical system gyroscope. The attitude is the output by fusing the information of the two sensors.
Shiqiang Wang +3 more
doaj +1 more source
FEBS Letters, EarlyView.Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai +4 more
wiley +1 more source
Penerapan Algoritma A-Star Sebagai Pencari Rute Terpendek pada Robot Hexapod
Jurnal Nasional Teknik Elektro, 2018 A-Star is a path finding algorithm that combine Uniform Cost Search and Greedy-Best First Search. Uniform Cost Search will choose the smallest cost from start to goal, while Greedy-Best First Search uses a heuristic function to estimate the cost required
Dedy Hermanto, Sepri Dermawan
doaj +1 more source
Design and Testing of a Simulator for Micro-Vibration Testing of Star Sensor. [PDF]
Micromachines (Basel), 2023 Zhu H, He S, Wang X, Qin C, Li L, Sun X.
europepmc +1 more source
FEBS Letters, EarlyView.This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley +1 more source
Abstract and Applied Analysis, 2014 This paper addresses the robust Kalman filtering problem for uncertain attitude estimation system with star sensor measurement delays. Combined with the misalignment errors and scale factor errors of gyros in the process model and the misalignment errors
Hua-Ming Qian, Wei Huang, Biao Liu
doaj +1 more source
Sensors, 2018 Stellar point image coordinates are one of the important observations needed for high-precision space attitude measurement with a star sensor. High-coupling imaging errors occur under dynamic imaging conditions.
Bo Wang +3 more
doaj +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 +3 more
wiley +1 more source
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 +6 more
wiley +1 more source
Multi-Stage Star Image Identification Method of Three Field-of-View Star Sensor
Xibei Gongye Daxue Xuebao, 2019 To improve the low efficiency and low navigation star identification rate of existing star image identification methods for three field-of-view (FOV) star sensor, a multi-stage star image identification method is proposed.
doaj +1 more source