Results 51 to 60 of about 9,737 (311)
Flight Dynamics Operations of the TanDEM-X Formation
, 2012 Since end of 2010 the German TerraSAR-X and TanDEM-X satellites are routinely operated as the first configurable single-pass Synthetic Aperture Radar interferometer in space. The two 1340 kg satellites fly in a 514 km sun-synchronous orbit.
Aida, Saika +4 more
core +1 more source
Visibility Augmented Proportional Navigation Guidance [PDF]
, 2018 Chasing an evader while keeping visual contact, or active line of sight (LOS), is a challenging problem that arises in applications involving the surveillance, observation, or interception of one of more targets in structured as well unstructured ...
POLLINI, LORENZO +6 more
core +1 more source
Directed evolution of enzymes at the crossroads of tradition and innovation
FEBS Open Bio, EarlyView.An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova +2 more
wiley +1 more source
A New Backstepping Sliding Mode Guidance Law Considering Control Loop Dynamics [PDF]
فصلنامه علوم و فناوری فضایی, 2016 In this paper, a new procedure for designing the guidance law considering the control loop dynamics is proposed. The nonlinear guidance loop entailing a first order lag as the control loop dynamics is formulated. A new finite time and smooth backstepping
Vahid Behnamgol +2 more
doaj
Incremental Nonlinear Dynamic Inversion and Control Allocation for a Tilt Rotor UAV
, 2014 A flight control system for a tilt rotor UAV has been synthesized based on an incremental nonlinear dynamic inversion technique. As known the effectiveness of dynamic inversion controllers depends on an accurate knowledge of the plant dynamics.
MATTEI, Massimiliano +11 more
core +1 more source
Robust INS/GPS sensor fusion for UAV localization using SDRE nonlinear filtering [PDF]
, 2009 For publication in IEEE Sensors JournalThe aim of this paper is to present a new INS/GPS sensor fusion scheme, based on State-Dependent Riccati Equation (SDRE) nonlinear filtering, for Unmanned Aerial Vehicle (UAV) localization problem.
Aouf, Nabil, Aouf, N., Nemra, A.
core +1 more source
Loss of AMBRA1 activates MAPK and angiogenesis signaling pathways in melanoma cells
FEBS Open Bio, EarlyView.Loss of AMBRA1 in melanoma cells activates multiple oncogenic pathways associated with tumor progression. Transcriptomic and protein network analyses revealed that AMBRA1 depletion enhances MAPK/ERK signaling, angiogenesis, TGF‐β/EMT signaling, and Wnt/axon guidance pathways.
Milad Ibrahim +4 more
wiley +1 more source
Journal of Aviation/Aerospace Education & Research, 2020 Increased traffic congestion on urban road networks has impacted the travel time for commuters in highly populated urban centers. Urban Air Mobility (UAM) is recognized as a system that transports the passenger and air cargo from any location to any ...
Trong Van Nguyen
doaj +1 more source
Dynamic visual servoing of a rotary-wing unmanned aerial vehicle without velocity measurement
, 2017 This paper presents a dynamic image-based visual servoing (IBVS) law for the quadrotor unmanned aerial vehicle (UAV) equipped with a single downward facing camera.
Low, K. H. +3 more
core +1 more source
New Directions for Adult and Continuing Education, EarlyView.ABSTRACT Mental well‐being is central to adult learner success, yet many adult education institutions lack capacity to provide timely and accessible support. This article examines how artificial intelligence (AI) can strengthen mental health–adjacent supports in adult and continuing higher education, with attention to professional practice and ...
Adam L. McClain, Thomas Wade
wiley +1 more source