Results 81 to 90 of about 135,008 (218)

Navigation systems for approach and landing of VTOL aircraft [PDF]

open access: yes
The formulation and implementation of navigation systems used for research investigations in the V/STOLAND avionics system are described. The navigation systems prove position and velocity in a cartestian reference frame aligned with the runway. They use
Mohr, R. L., Schmidt, S. F.
core   +1 more source

Allocentric and egocentric spatial representations coexist in rodent medial entorhinal cortex

open access: yesNature Communications
Successful navigation relies on reciprocal transformations between spatial representations in world-centered (allocentric) and self-centered (egocentric) frames of reference.
Xiaoyang Long   +4 more
doaj   +1 more source

TACAN operational description for the space shuttle orbital flight test program [PDF]

open access: yes
The TACAN subsystems (three TACAN transponders, six antennas, a subsystem operating program, and redundancy management software in a tutorial form) are discussed and the interaction between these subsystems and the shuttle navigation system are ...
Hudock, P. J., Hughes, C. L.
core   +1 more source

Brain connectivity during encoding and retrieval of spatial information: individual differences in navigation skills

open access: yesBrain Informatics, 2017
Emerging evidence suggests that the variations in the ability to navigate through any real or virtual environment are accompanied by distinct underlying cortical activations in multiple regions of the brain. These activations may appear due to the use of
Greeshma Sharma   +4 more
doaj   +1 more source

Deviations between intra-operative navigation data and post-operative weight-bearing X-rays [PDF]

open access: bronze, 2010
Isaac Livshetz   +4 more
openalex   +1 more source

Helical automatic approaches of helicopters with microwave landing systems [PDF]

open access: yes
A program is under way to develop a data base for establishing navigation and guidance concepts for all-weather operation of rotorcraft. One of the objectives is to examine the feasibility of conducting simultaneous rotorcraft and conventional fixed-wing,
Dugan, D. C.   +2 more
core   +1 more source

Loran-C performance assurance assessment program [PDF]

open access: yes
The Federal Aviation Administration (FAA) has accepted the Loran-C navigation system as a supplemental navigation aid for enroute use. Extension of Loran-C utilization to instrument approaches requires establishment of a process by which the current ...
Brooks, N. Kent, Lilley, Robert W.
core   +1 more source

Navigating human-sloth bear encounters and attacks in Nepal’s unprotected forests

open access: yesEnvironmental Challenges
Human-sloth bear conflict is a recurring issue in multi-use forest landscapes outside protected areas (PAs). In Nepal’s southern region, sloth bears are a major contributor to human-wildlife conflict, yet comprehensive information to inform conflict mitigation and ensure human safety remain limited. To address this gap, we collected questionnaire-based
Manoj Pokharel   +3 more
openaire   +2 more sources

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