Results 11 to 20 of about 858,752 (345)

Weapon performance drives weapon evolution

open access: yesProceedings of the Royal Society B: Biological Sciences, 2021
Many sexually selected traits function as weapons, and these weapons can be incredibly diverse. However, the factors underlying weapon diversity among species remain poorly understood, and a fundamental hypothesis to explain this diversity remains untested. Although weapons can serve multiple functions, an undeniably important function is their role in
Zachary Emberts   +2 more
openaire   +3 more sources

Underactuated USV path following mechanism based on the cascade method

open access: yesScientific Reports, 2022
The path following control under disturbance was studied for an underactuated unmanned surface vehicle (USV) subject to the rudder angle and velocity constraints.
Mingzhen Lin   +4 more
doaj   +1 more source

Antifungal weapons of Lysobacter, a mighty biocontrol agent.

open access: yesEnvironmental Microbiology, 2021
Bacteria interact with fungi in a variety of ways to inhibit fungal growth, while the underlying mechanisms remain only partially characterized. The plant-beneficial Bacillus and Pseudomonas species are well-known antifungal biocontrol agents, whereas ...
Long Lin   +5 more
semanticscholar   +1 more source

The time-frequency analysis of the acoustic signal produced in underwater discharges based on Variational Mode Decomposition and Hilbert–Huang Transform

open access: yesScientific Reports, 2023
The experiments of underwater discharges in an anechoic pool were carried out and analysis of the time-frequency characteristics of the acoustic signals was conducted based on Variational Mode Decomposition and Hilbert–Huang Transform (VMD-HHT).
Zhen Han   +4 more
doaj   +1 more source

Implementation of the Treaty on the Prohibition of Nuclear Weapons: Hopes and Expectations for the Future

open access: yesJournal for Peace and Nuclear Disarmament, 2021
The Treaty on the Prohibition of Nuclear Weapons entered into force on 22 January 2021. What can be expected in the years following (TPNW)? In the first few years, we can expect that states parties will start to implement the treaty’s positive ...
Alicia Sanders-Zakre, Beatrice Fihn
doaj   +1 more source

Preparation of NiCoCrAlYTa/Ag/Mo composite self-lubricant coating and its high-low temperature cycling tribological properties

open access: yesJournal of Aeronautical Materials, 2023
In order to develop a self-lubricating coating with long life and high reliability suitable for harsh working conditions, the composite coating with NiCoCrAlYTa as matrix phase, Ag as lubricant phase and Mo as the reinforcing phase were prepared by high ...
HAO Enkang   +6 more
doaj   +1 more source

Research on a matching detection method for magnetic anomaly of underwater targets

open access: yesAIP Advances, 2023
In the field of aviation anti-submarine warfare, magnetic detection systems often result in a large number of false alarms due to the inability to effectively distinguish between a local geomagnetic anomaly in the background field and a target magnetic ...
Yifei Liu   +3 more
doaj   +1 more source

Range Intensity Profiles of Multi-Slice Integration for Pulsed Laser Range-Gated Imaging System

open access: yesPhotonics, 2022
Pulsed laser range-gated imaging (PLRGI) is one of the most effective methods to achieve underwater high-resolution imaging. When searching target, there are two methods can be used: fixed gate and sliding gate.
Hongsheng Lin   +5 more
doaj   +1 more source

License to Kill: An Analysis of the Legality of Fully Autonomous Drones in the Context of International Use of Force Law [PDF]

open access: yes, 2019
We live in a world of constant technological change; and with this change, comes unknown effects and consequences. This is even truer with weapons and warfare.
Figueroa, Andrew
core   +2 more sources

Experimental investigation of the natural convection heat transfer characteristics of cylinder walls with a DBD actuator as the heat source

open access: yesCase Studies in Thermal Engineering, 2022
Conventional electric heating methods applied when evaluating the natural convection heat transfer parameters at the outer walls of cylinders produce uneven heat flows and large measurement errors.
Qijin Zhao   +6 more
doaj   +1 more source

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