Results 81 to 90 of about 120,169 (292)

Simulating Continuum-based Redshift Measurement in the Roman’s High Latitude Spectroscopic Survey

open access: yesThe Astronomical Journal
We investigate the capability of the Nancy Grace Roman Space Telescope’s (Roman) Wide-Field Instrument G150 slitless grism to detect red, quiescent galaxies based on the current reference survey.
Zhiyuan Guo   +3 more
doaj   +1 more source

Simulating Neutron Star Mergers as r-process Sources in Ultra Faint Dwarf Galaxies

open access: yes, 2017
To explain the high observed abundances of r-process elements in local ultra- faint dwarf (UFD) galaxies, we perform cosmological zoom simulations that include r-process production from neutron star mergers (NSMs).
Safarzadeh, Mohammadtaher   +1 more
core   +1 more source

Bioresorbable Mo–W Electrodes: Toward an Extended Operational Lifetime Through Controlled Alloying and Oxide Coating Engineering

open access: yesAdvanced Materials Interfaces, EarlyView.
Bioresorbable electrochemical sensors face instability in biofluids. Although alloys can mitigate rapid in vivo dissolution, Mo–W remains underexplored for sensing. This work engineers Mo–W films with a nanocrystalline oxide coating, improving stability and enabling reliable oxygen and pH sensing for up to 10 days, highlighting their potential for ...
C. Fernandes   +4 more
wiley   +1 more source

Merger-driven Turbulence and Coherent Transport in the Intracluster Medium

open access: yesThe Astrophysical Journal
The distribution of metals and temperature in the intracluster medium (ICM) provides key insights into galaxy cluster evolution, revealing information about chemical enrichment and heating and cooling processes, respectively.
Yiwei Zhang, Xun Shi, Daisuke Nagai
doaj   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Metallicity Structure in Galactic Longitude–Velocity Diagrams of the Milky Way Disk and FIRE-2 Simulations

open access: yesThe Astrophysical Journal
We investigate longitude–velocity ( ℓ – v ) diagrams as a diagnostic tool to study the metallicity structure of the Milky Way (MW) disk. The present-day metallicity structure encodes the imprint of the Galaxy’s formation, assembly, and secular evolution.
Victor Liu   +2 more
doaj   +1 more source

Determination of Dark Matter Halo Mass from Dynamics of Satellite Galaxies

open access: yes, 2017
We show that the mass of a dark matter halo can be inferred from the dynamical status of its satellite galaxies. Using 9 dark-matter simulations of halos like the Milky Way (MW), we find that the present-day substructures in each halo follow a ...
Jing, Y. P.   +4 more
core   +1 more source

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

open access: yesAdvanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale   +3 more
wiley   +1 more source

Exploring the Model Dependence of MCMC-based 21 cm Power Spectrum Parameter Constraints

open access: yesThe Astrophysical Journal
Detection and analysis of the cosmic 21 cm signal of neutral hydrogen has long been considered the most promising route towards exploration of the Epoch of Reionization (EoR).
A. Berklas, J. C. Pober
doaj   +1 more source

Evolution of axis ratios from phase space dynamics of triaxial collapse

open access: yes, 2018
We investigate the evolution of axis ratios of triaxial haloes using the phase space description of triaxial collapse. In this formulation, the evolution of the triaxial ellipsoid is described in terms of the dynamics of eigenvalues of three important ...
Arya, Bhaskar, Nadkarni-Ghosh, Sharvari
core   +1 more source

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