Results 81 to 90 of about 1,426,014 (374)

Subterranean Mine Inspection Using the Prometheus Re‐Configurable Drone

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This paper describes the design, development, and real‐world testing of an autonomous drone for subterranean exploration, known as “Prometheus.” Driven by requirements from industry that the drone be able to be deployed through areas of restricted access, Prometheus was designed to be directly deployed through a 150 mm aperture.
Liam Brown   +8 more
wiley   +1 more source

Research Progress on the “Least Risk Bomb Location”(LRBL) for Transport Aircraft

open access: yesHangkong gongcheng jinzhan, 2018
The LRBL is one of the latest cabin security requirement for transport aircraft certification. According to(least risk bomb location, LRBL) airworthiness requirements and related advisory circular, based on design and layout of structures and systems ...
Feng Zhenyu   +4 more
doaj   +1 more source

Detecting ADS-B Spoofing Attacks using Deep Neural Networks

open access: yes, 2019
The Automatic Dependent Surveillance-Broadcast (ADS-B) system is a key component of the Next Generation Air Transportation System (NextGen) that manages the increasingly congested airspace.
Bernieri, Giuseppe   +5 more
core   +1 more source

Software to Support Remote Sensing of River Discharge Based on Critical Flow Theory

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Water resource management requires accurate observations of streamflow but standard field methods for measuring river discharge (Q$$ Q $$) can be costly and hazardous for equipment and personnel. Remote sensing has become a viable alternative, but many image‐based techniques require field data for calibration, and depth and velocity can seldom
Carl J. Legleiter, Inhyeok Bae
wiley   +1 more source

Some comparisons of US and USSR aircraft design developments [PDF]

open access: yes
A review is given of the design and development of some US and USSR aircraft. The emphasis is on the historical development of large aircraft-civil and military transports and bombers.
Spearman, M. L.
core   +1 more source

Development of advanced composite structures [PDF]

open access: yes, 1978
Composite structure programs: the L-1011 Advanced Composite Vertical Fin (ACVF), the L-1011 Advanced Composite Aileron, and a wing study program were reviewed.
James, A. M., Stauffer, W. A.
core   +1 more source

Quantifying aboveground herbaceous biomass in grassy ecosystems: a comparison of field and high‐resolution UAV‐LiDAR approaches

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
The abundance of herbaceous vegetation in grassy ecosystems—which cover >25% of the world's land surface—is highly variable and impacts key ecological processes including carbon sequestration and support for grazing wildlife and livestock. Here, we present a method for using high‐resolution, UAV‐borne Light Detection and Ranging (LiDAR) to estimate ...
Tyler C. Coverdale   +3 more
wiley   +1 more source

Civil aircraft and aircraft engines : 2000 [PDF]

open access: yes, 2001
Current industrial report.

core  

A Method for Assessing the Risks to Sustainability Posed by Process Operations

open access: yesSustainable Development, EarlyView.
ABSTRACT We present a framework for assessing the risks to sustainability posed by any given set of processes. The objective is to improve sustainability by enabling better decision‐making in policy and business contexts. The framework can be applied to any system of processes where available information supports discovery and quantification of ...
Richard C. Darton, Colin J. Axon
wiley   +1 more source

Study on mechanical properties of aeronautical composite material interference-fit structures in hygrothermal service

open access: yesHangkong gongcheng jinzhan
Currently,the study on the influence of hygrothermal environment on composite material is more inclined to the material composition structure,rather than the composite connection.
QIU Hongjun   +4 more
doaj   +1 more source

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