Results 101 to 110 of about 883,811 (388)

Per un lessico dell’astronomia classica (1). I nomi dell’astronomia fra V-IV secolo a.C.: μετεωρολογία, ἀστρολογία, ἀστρονομία

open access: yesLexicon Philosophicum, 2021
This is the first of a series of notes on the technical lexicon of Greek astronomy. Between the 5th and 4th centuries BC, in Greece, the study of the sky becomes an autonomous discipline, whose concepts and practices favour the formation of a specific ...
Luca Simeoni
doaj   +1 more source

Over 18% Efficiency from Halogen‐Free Solvent‐Processed Polymer Solar Cells Enabled by Asymmetric Small Molecule Acceptors with Fluoro‐Thienyl Extended Terminal

open access: yesAdvanced Functional Materials, EarlyView.
An asymmetric non‐fullerene acceptor BTP‐FT is developed by extending the end group of Y6‐BO with thiophene. The conformation of the molecule is determined by the noncovalent F···S interaction as demonstrated by 2D NMR and simulations. An efficiency of 18.39% is achieved in the resulting ternary solar cells processed from toluene.
Jingnan Wu   +14 more
wiley   +1 more source

SEMANTIC CHARACTERISTIC OF THE TERMS OF ASTRONOMY, FUNCTIONING IN THE TEXTS OF SCIENTIFIC MONOGRAPHS [PDF]

open access: yesАктуальные проблемы филологии и педагогической лингвистики, 2017
The article is devoted to a comprehensive semantic characterization of astronomy terms, functioning in the Russian and English texts of scientific monographs.
Alikaev Rashid S.   +3 more
doaj  

Immanuel Kant’s Theory of Objects and Its Inherent Link to Natural Science

open access: yesOpen Philosophy, 2018
In the theoretical philosophy of Immanuel Kant, the term object has an extensive and far-reaching significance, and it can therefore be understood as a theory of objects.
Meer Rudolf
doaj   +1 more source

A Thousand Invisible Cords Binding Astronomy and High-Energy Physics

open access: yes, 2007
The traditional realm of astronomy is the observation and study of the largest objects in the Universe, while the traditional domain of high-energy physics is the study of the smallest things in nature. But these two sciences concerned with opposite ends
Colles M   +3 more
core   +1 more source

Astronomie

open access: yesDie Naturwissenschaften, 1919
n ...
openaire   +2 more sources

Discovery of an Intrinsic Antiferromagnetic Semiconductor EuSc2Te4 With Magnetism‐Driven Nonlinear Transport

open access: yesAdvanced Functional Materials, EarlyView.
EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee   +15 more
wiley   +1 more source

Bernstein Operational Matrix Approach for Integro-Differential Equation Arising in Control theory

open access: yesNonlinear Engineering, 2014
The aim of this paper is to propose an efficient numerical method for solving the integro-differential equations arising in many braches of sciences using Bernstein polynomials.
Irfan Nagma, Kumar Sunil, Kapoor Saurabh
doaj   +1 more source

Self‐Poled Halide Perovskite Ruddlesden‐Popper Ferroelectric‐Photovoltaic Semiconductor Thin Films and Their Energy Harvesting Properties

open access: yesAdvanced Functional Materials, EarlyView.
Low‐dimensional halide perovskite thin films, (BA)2(MA)n‐1PbnBr3n+1 (n = 1, 2), exhibit both semiconducting and ferroelectric properties, enabling mechanical and light energy harvesting. Using Cr/Cr₂O₃ or PCBM as barrier layers ensures reproducible ferroelectricity.
Raja Sekhar Muddam   +8 more
wiley   +1 more source

Regards sur la nature : place de l’observation dans les textes astronomiques latins

open access: yesPallas, 2013
In antiquity, astronomical knowledge came essentially from philosophy, mathematics and logic. One can then question the role given to the observation of phenomena. To answer this question, we chose to analyze some of the demonstrations presented in Latin
Émilie-Jade Poliquin
doaj   +1 more source

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