Results 31 to 40 of about 16,280 (210)

Ultralight scalars in leptonic observables

open access: yesJournal of High Energy Physics, 2021
Many new physics scenarios contain ultralight scalars, states which are either exactly massless or much lighter than any other massive particle in the model. Axions and majorons constitute well-motivated examples of this type of particle.
Pablo Escribano, Avelino Vicente
doaj   +1 more source

Pressure‐Induced sp 2 ‐sp 3 Transitions in Carbon‐Bearing Phases

open access: yesGeophysical Monograph Series, Page 1-9., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Sergey S. Lobanov   +1 more
wiley  

+1 more source

Propagation of high-energy neutrinos in a background of ultralight scalar dark matter [PDF]

open access: yes, 2016
If high-energy neutrinos propagate in a background of ultralight scalar field particles of dark matter ($m_\varphi \sim 10^{-23}$eV), neutrino-dark matter interactions can play a role and affect the neutrino flux.
Reynoso, Matías M., Sampayo, Oscar A.
core   +2 more sources

Determination of the Tail Unit Parameters of Ultralight Manned and Unmanned Helicopters at the Preliminary Design Stage

open access: yesAerospace
The 1–2 seat helicopters have developed considerably in recent years. They have a maximum take-off weight of 250 to 750 kg. Most of these helicopters have been converted into unmanned versions.
Vitaly Dudnik
doaj   +1 more source

ULTRALIGHT RADAR FOR SMALL AND MICRO-UAV NAVIGATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
This paper presents a radar approach to navigation of small and micro Unmanned Aerial Vehicles (UAV) in environments challenging for common sensors. A technique based on radar odometry is briefly explained and schemes for complete integration with other
A. F. Scannapieco   +3 more
doaj   +1 more source

Experimental analysis of ultralight aircraft tyre behaviour under aircraft landing phase

open access: yesAviation, 2022
The aim of the research described in this paper is analysis of the deformation of the aircraft tyre subjected to static load. Based on the results of experimental tests with a different value of inflation pressure, favorable pressure conditions for use ...
Andrzej Kubit   +3 more
doaj   +1 more source

Pushing the envelope [PDF]

open access: yes, 1998
This article is a description of the manoeuvre envelope in microlight aeroplanes, and how it is ...
Gratton, GB
core   +1 more source

Astrophysical Searches of Ultralight Particles

open access: yesProceedings of 41st International Conference on High Energy physics — PoS(ICHEP2022), 2022
The Standard Model of particle physics is a $SU(3)_c\times SU(2)_L\times U(1)_Y$ gauge theory that can explain the strong, weak, and electromagnetic interactions between the particles. The gravitational interaction is described by Einstein's General Relativity theory which is a classical theory of gravity.
openaire   +2 more sources

Ultralight ultrafast enzymes

open access: yes, 2021
Abstract Inorganic materials depleted of heavy stable isotopes are known to deviate strongly in some physico-chemical properties from their isotopically natural (native) counterparts; however, in biotechnology such effects have not been investigated yet.
Xuepei Zhang   +10 more
openaire   +1 more source

Fatal Consequences of Safety Non-Compliance in Non-Commercial Ultralight Aviation: A Case Study

open access: yesSafety
The popularity of ultralight planes in non-commercial aviation is on the rise; however, non-compliance with regulations and the use of faulty equipment poses significant risks.
Sebastian Glowinski, Slawomir Majdanik
doaj   +1 more source

Home - About - Disclaimer - Privacy