Results 71 to 80 of about 111,617 (268)

Meteor velocity determination with plasma physics [PDF]

open access: yesAtmospheric Chemistry and Physics, 2004
Understanding the global meteor flux at Earth requires the measurement of meteor velocities. While several radar methods exist for measuring meteor velocity, they may be biased by plasma reflection mechanisms.
L. P. Dyrud   +6 more
doaj  

Determination of meteor flux distribution over the celestial sphere [PDF]

open access: yes
A new method of determination of meteor flux density distribution over the celestial sphere is discussed. The flux density was derived from observations by radar together with measurements of angles of arrival of radio waves reflected from meteor trails.
Andreev, V. V.   +3 more
core   +1 more source

Choice Feminism and the Opt‐Out Phenomenon: Is It Possible to Speak of Free Will?

open access: yesGender, Work &Organization, EarlyView.
ABSTRACT The aim of this research was to question choice feminism in the light of the opt‐out phenomenon, through a thematic narrative analysis of the professional trajectories of five Brazilian women with university degrees. As a result of the research—and the main contribution to the advancement of knowledge in the field—it was found that although ...
Paula Furtado Hartmann de Queiroz Monteiro   +3 more
wiley   +1 more source

Deep Groundwater Total Dissolved Solids Mapping in the Dakota Group, Williston Basin, USA

open access: yesGroundwater, EarlyView.
Abstract Growing concern about the quantity of available freshwater around the world has led to interest in surveying groundwater total dissolved solids (TDS) below water well depths. Deep TDS has not been systematically mapped, and there is much to learn about the distribution and controls on deeper groundwater. In sedimentary basins across the United
Michael J. Stephens   +3 more
wiley   +1 more source

Enhancing Meteor Observations with Photodiode Detectors

open access: yesApplied Sciences
This article introduces an innovative meteor detection system that integrates high-speed photodiode detectors with traditional camera-based systems.
Adam Popowicz   +3 more
doaj   +1 more source

Imaging Point Source Groundwater Discharges in a Confined Coastal Aquifer Using Electrical Resistivity

open access: yesGroundwater, EarlyView.
Marine electrical resistivity tomography (ERT) is applied to characterize point‐source submarine groundwater discharge (PSGD) along NW Yucatán. ERT observations and forward modeling constrain conduit detectability under varying hydrogeological conditions.
Mariana Gómez‐Nicolás   +6 more
wiley   +1 more source

Two-dimensional wind field observation based on multistatic meteor radars in central and eastern China

open access: yes地球与行星物理论评
All-sky meteor radars have become a reliable and widely used tool for observing horizontal winds in the mesosphere and lower thermosphere (MLT) region. This provides vital data support for the study of dynamics in this region.
Maolin Lu   +5 more
doaj   +1 more source

Meteor radiant mapping with MU radar [PDF]

open access: yes
The radiant point mapping of meteor showers with the MU radar by using a modified mapping method originally proposed by Morton and Jones (1982) was carried out. The modification is that each meteor echo was weighted by using the beam pattern of the radar
Miyashita, A.   +5 more
core   +1 more source

Shedding light on the parasite communities and diet of the deep‐sea shark Deania profundorum (Smith & Radcliffe, 1912) (Squaliform: Centrophoridae) from the Avilés Canyon (southern Bay of Biscay)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Deep‐sea elasmobranchs are less resilient to the increasing scale of anthropogenic impacts such as fisheries, owing to their life‐history traits. The necessity for proper management measures is hampered by the scant knowledge on these taxa and their biology. Here we provide the first comprehensive insight into the parasite infracommunities and
Wolf Isbert   +5 more
wiley   +1 more source

Lost City meteorite - It's recovery and a comparison with other fireballs [PDF]

open access: yes
Photographic and trajectory data for Lost City meteor and establishment of calibration of mass scale of other ...
Mc Crosky, R. E.   +3 more
core   +1 more source

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