Results 81 to 90 of about 2,437 (254)

A Thermodynamic‐Kinetic Model for Basic Oxygen Furnace Tapping: Improved Prediction of Phosphorus and Steel‐Slag Evolution

open access: yessteel research international, EarlyView.
This study develops a thermodynamic–kinetic model for basic oxygen furnace tapping and validates its accuracy under near‐equilibrium and far‐from‐equilibrium initial conditions. Comparison with a reference model demonstrates its broader applicability. The model further reveals the evolution of key steel and slag components, providing new transparency ...
Puhong Cheng   +4 more
wiley   +1 more source

How Long-lived Grains Dominate the Shape of the Zodiacal Cloud

open access: yesThe Planetary Science Journal
Grain–grain collisions shape the three-dimensional size and velocity distribution of the inner Zodiacal Cloud and the impact rates of dust on inner planets, yet they remain the least understood sink of zodiacal dust grains. For the first time, we combine
Petr Pokorný   +4 more
doaj   +1 more source

Untreated Hair Dye Effluents Enter the Environment: Are They a Threat to Human Health?

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The effluents generated during the process of hair dyeing exhibit a complex composition, comprising chemical compounds with varying toxicity levels. While the adverse impact of hair dyes on human health is acknowledged, there is a notable absence of studies addressing the toxicity associated with effluents produced during these activities. The
Letícia Cristina Gonçalves   +3 more
wiley   +1 more source

Opportunities for the stratospheric collection of dust from short-period comets

open access: yes, 2002
We have identified four comets which have produced low velocity Earth-crossing dust streams within the past century: 7P/Pons-Winnecke, 26P/Grigg-Skjellerup, 73P/Schwassmann-Wachmann 3, and 103P/Hartley 2. These comets have the rare characteristics of low
Messenger, S.
core   +2 more sources

On the Early Thermal Processing of Planetesimals during and after the Giant Planet Instability

open access: yesThe Planetary Science Journal
Born as ice-rich planetesimals, cometary nuclei were gravitationally scattered onto their current orbits in the Kuiper Belt and the Oort Cloud during the giant planets’ dynamical instability in the early stages of our solar system’s history.
Anastasios Gkotsinas   +4 more
doaj   +1 more source

A study of the orbital evolution of 10 short-period comets by solving differential equations of motion obtained on the basis of a new principle of interaction

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2007
The research of the orbital evolution of 10 short-period comets on the time interval of 400 years (1800–2200) is made by solving the differential equations of motion based on the new principle of mutual interaction of material bodies.
A. F. Zausaev
doaj   +1 more source

Cytogenotoxic Effects of Fluopyram in Allium cepa Root Cells Involving Microtubule Disruption

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Fluopyram is a next‐generation fungicide widely used in agriculture; however, its persistence in soils and mobility toward aquatic systems have raised concerns regarding potential ecotoxicological risks. This study evaluated the cytogenotoxic effects of a commercial fluopyram‐based pesticide formulation on Allium cepa root meristem cells ...
Carlos Filipe Camilo‐Cotrim   +10 more
wiley   +1 more source

Nongravitational Forces in Planetary Systems

open access: yesThe Planetary Science Journal
Nongravitational forces play surprising and, sometimes, centrally important roles in shaping the motions and properties of small planetary bodies. In the solar system, the morphologies of comets, the delivery of meteorites, and the shapes and dynamics of
David Jewitt
doaj   +1 more source

How weather got its words: a history of meteorological English – Part 2: the scientific age and beyond

open access: yesWeather, EarlyView.
The English language is a gargantuan, gluttonous beast. It has become extraordinary in its powers of assimilation – such that we rarely consider the origins of the words we use. In this paper, we will shed light on these origins, including the Pontic–Caspian steppe, the British Empire and, of course, a TV show.
Kieran M. R. Hunt
wiley   +1 more source

Studying Short-Period Comets and Long-Period Comets Detected by WISE/NEOWISE

open access: yes, 2014
The Wide-field Infrared Survey Explorer (WISE) mission surveyed the sky in four infrared wavelength bands (3.4, 4.6, 12 and 22 μm) between January 2010 and February 2011.
Kramer, Emily
core  

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