Results 71 to 80 of about 340,792 (285)

Seeking String Theory in the Cosmos

open access: yes, 2011
We review the existence, formation and properties of cosmic strings in string theory, the wide variety of observational techniques that are being employed to detect them, and the constraints that current observations impose on string theory models ...
  +55 more
core   +1 more source

Large‐Aperture Polarization‐Independent Broadband Achromatic All‐Dielectric Metalens for Terahertz Focusing

open access: yesAdvanced Science, EarlyView.
A large‐aperture, high focusing efficiency and polarization‐independent THz single‐layer achromatic metalens is reported via discrete multi‐wavelength achromatic design and global optimization algorithm. The fabricated metalens exhibits a largest diameter of 2.21 cm, excellent achromatic performance, extremely high average focusing efficiency (> 46 ...
Xiaoqiang Jiang   +7 more
wiley   +1 more source

There is No Hop(p)e neboli Blaise Pascal a ambivalence kosmické hrůzy

open access: yesFilosofický časopis
The essay focuses on the survival of Pascal’s metaphors concerning the cosmic wasteland. It analyzes step-by-step the ways in which authors such as Immanuel Kant, George Milbrey Gould, Herbert George Wells, Thomas Henry Huxley, Howard Phillips Lovecraft,
Zika, Richard, Váša, Ondřej
doaj   +1 more source

Comparison of CORSIKA and COSMOS simulations

open access: yes, 2011
Ultra-high-energy cosmic rays (UHECRs) refer to cosmic rays with energy above 10^{18} eV. UHECR experiments utilize simulations of extensive air shower to estimate the properties of UHECRs.
Kang, Hyesung   +6 more
core   +1 more source

Integrating Automated Electrochemistry and High‐Throughput Characterization with Machine Learning to Explore Si─Ge─Sn Thin‐Film Lithium Battery Anodes

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
A closed‐loop, data‐driven approach facilitates the exploration of high‐performance Si─Ge─Sn alloys as promising fast‐charging battery anodes. Autonomous electrochemical experimentation using a scanning droplet cell is combined with real‐time optimization to efficiently navigate composition space.
Alexey Sanin   +7 more
wiley   +1 more source

La enseñanza del cosmos: la experiencia de los maestros de cultura bribris y cabécares

open access: yesCuadernos Inter.c.a.mbio sobre Centroamérica y el Caribe, 2012
En este artículo se realiza una reflexión sobre la relación entre la escuela y los conocimientos ahí transmitidos, en especial la escritura, en los territorios indígenas de Talamanca Bribri y de Alto Chirripó. La escuela primaria empieza en este contexto
Alice Lamounier Ferreira
doaj  

Editorial: Regaining Sanity [PDF]

open access: yes, 2019
This is the editorial to the special edition of Cosmos and History on 'Regaining Sanity'
Gare, Arran
core  

Real‐time fault detection in multicomponent nuclear‐waste slurries through data fusion of spectroscopic sensors

open access: yesAIChE Journal, Volume 72, Issue 5, May 2026.
Abstract Three instruments–Raman spectroscopy, attenuated total reflectance–Fourier transform infrared spectroscopy, and focused beam reflectance measurement–were used to detect sensor faults, mixing faults, and unanticipated chemistry in a system of multicomponent slurries.
Steven H. Crouse   +2 more
wiley   +1 more source

Los paradigmas mesoamericanos que unificaron la reconstrucción del pasado: el mito de la creación del cosmos; la fundación del reino maravilloso (Tollán), y Quetzalcóatl, el creador de estados y dinastías

open access: yesHistoria Mexicana El Colegio de México, 2002
De los mitos de la creación del cosmos, de Quetzalcóatl y de Tollán son los paradigmas que dominan el relato histórico mesoamericano. Los relatos de la creación repiten siempre  la historia sobre el ordenamiento del mundo, el origen de los humanos y el ...
Enrique Florescano
doaj  

In Breakable Glasses: Toward a Naturalist Orientational Cosmology [PDF]

open access: yes, 2005
The author develops the formula, "that process that gives rise to all that exists," as a specification of the cosmos within which human life may find meaningful, ethical orientation.
Bernard, Danièle   +2 more
core  

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