Results 161 to 170 of about 57,270 (311)

Water and hydroxyl on asteroid Bennu: Reconciling remote observations with OSIRIS‐REx sample analysis

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract This study investigates the spatial distribution and spectral characteristics of the broad hydration feature near 3 μm across the surface of asteroid (101955) Bennu using OVIRS (OSIRIS‐REx Visible and InfraRed Spectrometer) data. We analyzed multiple global OVIRS data sets obtained at different times throughout the Bennu day, revealing ...
Hannah H. Kaplan   +5 more
wiley   +1 more source

Automatic Photometric Telescopes: Past and Future

open access: yes, 2002
A summary history of the development of automatic photoelectric telescopes (APTs) is given, with emphasis on how operational efficiency and high accuracy were achieved.
Genet, Russell M.
core  

On Our Cosmic (In)significance

open access: yesRatio, EarlyView.
ABSTRACT This article discusses three interpretations of cosmic significance, all of which reveal something important about the notion of significance. Along the way, it proposes a unified view of significance by combining elements of each of the views.
Oskari Sivula
wiley   +1 more source

Regression Analysis for Blip Effects of Treatments in Sequence

open access: yesScandinavian Journal of Statistics, EarlyView.
ABSTRACT The blip effects are the net effects of treatments in sequence on an outcome of interest, which is estimable from the marginal distribution of all the treatments, covariates and outcome. However, regression requires that the blip effects are estimated from the conditional distribution of the outcome given all the treatments and covariates.
Bing Tian   +4 more
wiley   +1 more source

Grain sampling with hand and pneumatic probes

open access: yesCrop, Forage &Turfgrass Management, Volume 12, Issue 2, December 2026.
Abstract Grain sampling is an essential step in grain storage and commercialization processes. Bulk grain sampling methods for bulk grains in storage units, cooperatives, and agro‐industrial facilities use various types of equipment, including manual and pneumatic grain probes.
Luiz Cláudio Garcia   +5 more
wiley   +1 more source

Study of Damage to Shutters Exposed to a Vegetation Fire: Definition of Vulnerability Thresholds

open access: yesFire and Materials, Volume 50, Issue 8, Page 941-954, December 2026.
ABSTRACT This study examines the fire behavior of wooden, PVC, and aluminum shutters through laboratory and large‐scale experiments. Laboratory tests were conducted using a cone calorimeter to assess the ignitability of the PVC and wooden shutters, focusing on the critical heat flux of ignition, ignition time and critical Flux Time Product ( FTP ...
C. Luciani   +5 more
wiley   +1 more source

Cis–Trans Rotational Isomerism of Formic Acid, Sulfur, and Selenium Analogues and Their Dimers: Chemical Kinetics Under Interstellar Conditions

open access: yesInternational Journal of Chemical Kinetics, Volume 58, Issue 12, Page 1136-1145, December 2026.
ABSTRACT We present chemical kinetic rate constants for the cis to trans isomerisation or rotamerization of monomeric seleno‐, thio‐, and formic acids and that of three of their dimeric species, based on variational transition state theory and multidimensional tunneling calculations in the gas‐phase, from 10 K to 300 K. These provide, firstly, reliable
Judith Wurmel, John M. Simmie
wiley   +1 more source

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