Results 91 to 100 of about 4,885,884 (343)

Mining Missing Hyperlinks from Human Navigation Traces: A Case Study of Wikipedia [PDF]

open access: yes, 2015
Hyperlinks are an essential feature of the World Wide Web. They are especially important for online encyclopedias such as Wikipedia: an article can often only be understood in the context of related articles, and hyperlinks make it easy to explore this ...
Clemesha A.   +7 more
core   +1 more source

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

open access: yesFEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz   +6 more
wiley   +1 more source

Design and Ground Verification for Vision‑Based Relative Navigation Systems of Microsatellites

open access: yesTransactions of Nanjing University of Aeronautics and Astronautics
This paper presents the design and ground verification for vision-based relative navigation systems of microsatellites, which offers a comprehensive hardware design solution and a robust experimental verification methodology for practical implementation ...
DU Ronghua, LIAO Wenhe, ZHANG Xiang
doaj   +1 more source

Intercepting Higher-Speed Targets Using Generalized Relative Biased Proportional Navigation

open access: yesXibei Gongye Daxue Xuebao, 2019
To intercept a higher-speed target in the terminal guidance phase, this paper proposes a generalized relative biased proportional navigation (BPN) law. In order to enlarge the capture domain of the classical proportional navigation (PN) law and make full

doaj   +1 more source

GPS relative navigation in rendezvous operations

open access: yesElectronics Letters, 1990
The possibility of obtaining excellent results in rendezvous operations is investigated. A model of the GPS receiver to beinstalled on board the chaser is proposed. It can give both the relative navigation data and absolute navigation data. The results of a computer simulation are also presented.
S. Cacopardi   +3 more
openaire   +1 more source

Study of effects of uncertainties on comet and asteroid encounter and contact guidance requirements. Part 1: Guidance and navigation studies [PDF]

open access: yes
A guidance algorithm that provides precise rendezvous in the deterministic case while requiring only relative state information is developed. A navigation scheme employing only onboard relative measurements is built around a Kalman filter set in ...

core   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

The skills required for transition to university and study in biological sciences: A student perspective

open access: yesFEBS Open Bio, EarlyView.
Bioscience students were asked for their opinions on the value and teaching of skills. 204 responded that teamwork, time management and study skills are necessary to reach University, that scientific writing, research, laboratory and presentation skills are taught effectively during their studies, while other skills are gained inherently through study ...
Janella Borrell, Susan Crennell
wiley   +1 more source

USV/UUV Cooperative Navigation Algorithm Based on Moving Long Baseline and Navigation Error Correction

open access: yes水下无人系统学报
Unmanned undersea vehicles(UUVs) undergo a cumulative increase of inertial navigation error caused by long-term cooperative movement. In order to reduce the relative navigation errors between unmanned surface vessels(USVs) and UUVs and improve the ...
Huifeng JIAO   +4 more
doaj   +1 more source

Proportional Navigation Guidance with Variable Navigation Ratio in terms of the angle of relative velocity with respect to Line-of-Sight and its Rate [PDF]

open access: yesفصلنامه علوم و فناوری فضایی
In the present work, the performance of True Proportional Navigation (TPN) with different profiles for effective navigation ratio in terms of the relative velocity angle with respect to line-of-sight is investigated due to initial heading errors and ...
S. Hamid Jalali-Naini, Ali Arabian Arani
doaj   +1 more source

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