Results 81 to 90 of about 198,426 (303)

Radiation-hardened fast acquisition/weak signal tracking system and method [PDF]

open access: yes, 2009
A global positioning system (GPS) receiver and method of acquiring and tracking GPS signals comprises an antenna adapted to receive GPS signals; an analog radio frequency device operatively connected to the antenna and adapted to convert the GPS signals ...
Boegner, Gregory J.   +2 more
core   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

open access: yesThe Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li   +12 more
wiley   +1 more source

Ego-Downward and Ambient Video based Person Location Association

open access: yes, 2018
Using an ego-centric camera to do localization and tracking is highly needed for urban navigation and indoor assistive system when GPS is not available or not accurate enough.
Huo, Zhouyuan   +3 more
core   +1 more source

Archaeological Damage Assessment in Conflict Zones: Integrating Satellite Imagery and Ground Surveys in Daraa, Syria

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Satellite remote sensing is among the most significant modern methodologies supporting field archaeology. In addition to its efficiency in identifying archaeological sites, remote sensing offers a safe and cost‐effective approach in conflict zones.
Amal Al Kassem   +5 more
wiley   +1 more source

Quantitative Analysis to the Impacts of IMU Quality in GPS/INS Deep Integration

open access: yesMicromachines, 2015
In the Global Positioning System (GPS)/Inertial Navigation System (INS) deep integration system, the pure negative effect of the INS aiding is mainly the INS navigation error that is independent with the motion dynamics, which determine whether the INS ...
Xiaoji Niu   +5 more
doaj   +1 more source

Transforming Brain Health With Neurotechnology Convergence (Part II): Intelligent Neurointervention Systems for Neurological Disorders

open access: yesBrain Health, EarlyView.
ABSTRACT Neurological disorders represent a critical domain within global health, necessitating advanced interventions to address complex pathologies such as tumors, functional disorders, and cerebrovascular diseases. Despite the proven benefits of early intervention, current treatment paradigms face significant challenges: (1) limited precision in ...
Qing Ye   +14 more
wiley   +1 more source

Location tracking system using wearable on-body GPS antenna

open access: yesMATEC Web of Conferences, 2017
An on-body location tracking system is developed and integrated with a wearable GPS antenna. Such system is beneficial in human location tracking of patients and elderly within a radius of 1 km.
Sabapathy Thennarasan   +4 more
doaj   +1 more source

Testing cellular phone-enhanced GPS tracking technology for urban carnivores

open access: yesAnimal Biotelemetry, 2019
Background We present a cellular phone-enhanced GPS tracking system (GPS mobile with CTG-001G receiver triangulation) suitable for urban carnivores, in tandem with appropriate home range analysis, as an additional tracking technology option in ...
Hiroaki Ishii   +5 more
doaj   +1 more source

Spatial metrics in fire ecology: seeking consistency amidst complexity

open access: yesBiological Reviews, EarlyView.
ABSTRACT Technological advances, including remote sensing, have led to a proliferation of metrics used in ecological studies to examine spatial patterns of fire regimes and their ecological effects. Researchers can use many different metrics to analyse spatial variation in both fire events and resulting fire regimes, including fire size, shape ...
Alexander R. Carey   +5 more
wiley   +1 more source

Migration and wintering strategies of a Eurasian Stone-curlew ( Burhinus oedicnemus ) continental population, and their conservation implications

open access: yesAvian Conservation and Ecology
The Eurasian Stone-curlew ( Burhinus oedicnemus ) is a declining and threatened species, yet its migration and wintering strategies are little documented.
Emilie Dedeban   +8 more
doaj   +1 more source

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