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Vehicle Safety of the Velocity Obstacle Algorithm
(2021-01)
This paper presents a mathematical analysis of the velocity obstacle algorithm applied to a nonholonomic vehicle for avoiding a moving obstacle in the plane. The velocity obstacle algorithm can be used for local navigation ...
Pathologic Blood Samples Tolerate Exposure to Vibration and High Turbulence in Simulated Drone Flights, but Plasma Samples Should be Centrifuged after Flight
(2021-01-30)
Objective. Most of the previous studies of drone transport of blood samples examined normal blood samples transported under tranquil air conditions. We studied the effects of 1- and 2-hour drone flights using random vibration ...
Evaluation of Two Path Following Controllers for an Ackermann Off-road Vehicle in Winter and Summer Conditions
(2021-04-02)
Off-road driving can be a challenging task with rapid changes in the driving conditions, terrain and vehicle behavior. For off-road autonomous vehicles, it is important to be robust to these changes, and parts of this ...
Toxic effects of gunshot fumes from different ammunitions for small arms on lung cells exposed at the air liquid interface
(2021-01-14)
Concerns have been raised as to whether gunshot fumes induce prolonged reduced lung capacity or even cancer due to inhalation. Gunshot fumes from three different types of ammunition calibre 5.56 mm × 45 NATO were investigated. ...
Demonstrating Interoperability Between Unmanned Ground Systems and Command and Control Systems
(2021-05-25)
This paper describes the research and experiment efforts of
the NATO STO group IST-149-RTG capability concept demonstrator for
interoperability within unmanned ground systems and C2 and the NAAG
team of experts on UGV. ...
Performance of drag force models for shock-accelerated flow in dense particle suspensions
(2021-04)
Models for prediction of drag forces within a particle cloud following shock-acceleration are evaluated with the aid of results from particle-resolved simulations in order to quantify how much the disturbances introduced ...
Environmental Adaptation of Robot Morphology and Control Through Real-world Evolution
(2021-03-30)
Robots operating in the real world will experience a range of different environments and tasks. It is essential for the robot to have the ability to adapt to its surroundings to work efficiently in changing conditions. ...
Laminar burning velocity of gases vented from failed Li-ion batteries
(2021-06-10)
In the last decade, several fires and explosions caused by Li-ion batteries (LIBs) have been reported. This can be attributed to the thermal runaway and catastrophic failures of LIBs that release combustible gases, which ...
A global metagenomic map of urban microbiomes and antimicrobial resistance
(2021-06-24)
We present a global atlas of 4,728 metagenomic samples from mass-transit systems in 60 cities over 3 years, representing the first systematic, worldwide catalog of the urban microbial ecosystem. This atlas provides an ...
Quantification of aerosol dispersal from suspected aerosol-generating procedures
(2021-12-06)
Background Oxygen-delivering modalities like humidified high-flow nasal cannula (HFNC) and noninvasive positive-pressure ventilation (NIV) are suspected of generating aerosols that may contribute to transmission of disease ...