Results 251 to 260 of about 279,672 (369)

The Galactic Halo and CDM

, 2003
This paper reviews the available information on the central density distribution and shape of the Milky Way's halo. At present, there is no strong evidence that the Milky Way's halo properties conflict with the predictions of cold dark matter (CDM): a primordial central power law cusp can be accommodated by the observations, and the current constraints
openaire   +2 more sources

Determining Exciton Diffusion Length in Organic Semiconductors: Unifying Macro‐ and Microscopic Perspectives

Advanced Energy Materials, EarlyView.
Exciton diffusion length in organic semiconductor films is determined from encounter/annihilation rates. Non‐normalized exciton densities and proper intrinsic lifetime reference avoid over‐parametrization of the fits. Monte Carlo Simulation of individual molecule‐to‐molecule hops reproduce these results (②) when matching lattice constant and hoping ...
Wenchao Yang, Catherine S. Pursglove De Castro, Safakath Karuthedath, Yuliar Firdaus, Nisreen Alshehri, Si Chen, Diego Rosas Villalva, Christopher E. Petoukhoff, Amr Dahman, Derya Baran, Thomas D. Anthopoulos, Frédéric Laquai, Julien Gorenflot   +12 more
wiley   +1 more source

Transport Resistance Dominates the Fill Factor Losses in Record Organic Solar Cells

Advanced Energy Materials, EarlyView.
Organic photovoltaics are a promising solar cell technology, but even the record devices with 20% efficiency have significant fill factor losses due to low active layer conductivities. In this Perspective, the authors describe the origin of these losses, discuss experimental methods for their quantification, and explain how to minimize them to optimize
Chen Wang, Roderick C. I. MacKenzie, Uli Würfel, Dieter Neher, Thomas Kirchartz, Carsten Deibel, Maria Saladina   +6 more
wiley   +1 more source

A time-resolved picture of our Milky Way's early formation history. [PDF]

Nature, 2022
Xiang M, Rix HW.
europepmc   +1 more source

The SHARK integral generation and digestion system

Journal of Computational Chemistry, Volume 44, Issue 3, Page 381-396, January 30, 2023., 2023
The BLAS level 3‐driven SHARK integral generation and digestion library is introduced and it is discussed how it leads to greatly simplified workflows and substantial computational speedups. Abstract In this paper, the SHARK integral generation and digestion engine is described.
Frank Neese
wiley   +1 more source

Discovery of a high-velocity cloud of the Milky Way as a potential dark galaxy. [PDF]

Sci Adv
Liu XL, Xu JL, Jiang P, Zhu M, Zhang CP, Yu N, Xu Y, Guan X, Wang JJ.   +8 more
europepmc   +1 more source

Galactic gamma halo by heavy neutrino annihilations? [PDF]

, 2000
Daniele Fargion, R. Konoplich, M. Grossi, Maxim Yu. Khlopov   +3 more
openalex   +1 more source

Compliant Robotics in Space: A Prospective Review of Soft and Deformable Systems for Space Missions

Advanced Intelligent Systems, EarlyView.
Compliant robots are increasingly becoming integral to space exploration due to their adaptability, flexibility, and lightweight design. This article reviews categories such as soft, reconfigurable, and hyper‐redundant robots and their evolving role in enhancing space missions.
Hamed Rahimi Nohooji, Holger Voos
wiley   +1 more source

Toward a better modulus at shallow indentations—Enhanced tip and sample characterization for quantitative atomic force microscopy

Microscopy Research and Technique, Volume 86, Issue 1, Page 84-96, January 2023., 2023
Assessment of the geometry of indenting probes at the tip apex is crucial during shallow indentations—as is an understanding of the interaction between the probe and the material of interest. This study demonstrates a simple method to calibrate the atomic force microscopy (AFM) to extract quantitative moduli of soft cells and materials.
David S. Owen
wiley   +1 more source

Gravitational Hamiltonian Systems and the Retarded Gravity Inequality. [PDF]

Entropy (Basel)
Yahalom A.
europepmc   +1 more source