Results 101 to 110 of about 401,182 (321)
Microsphere Autolithography—A Scalable Approach for Arbitrary Patterning of Dielectric Spheres
Advanced Functional Materials, EarlyView.MicroSphere Autolithography (µSAL) enables scalable fabrication of patchy particles with customizable surface motifs. Focusing light through dielectric microspheres creates well defined, tunable patches via a conformal poly(dopamine) photoresist. Nearly arbitrary surface patterns can be achieved, with the resolution set by the index contrast between ...
Elliott D. Kunkel +3 more
wiley +1 more source
Lower Limits on the Strengths of Gamma Ray Lines from WIMP Dark Matter Annihilation
, 2012 We study the spectra of gamma ray signals that arise from dark matter annihilation in the universe. We focus on the large class of theories where the photon spectrum includes both continuum spectrum of gamma rays that arise from annihilation into ...
Abazajian, Kevork N. +3 more
core +1 more source
Advanced Functional Materials, EarlyView.Aggregates of diketopyrrolopyrrole dipolar and quadrupolar systems exhibit panchromatic absorption spectra extending in the entire visible range. Upon aggregation in water and in the solid state, their fluorescence is almost completely quenched and their singlet excited state lifetime is significantly shortened.
Roberto Cantoni +10 more
wiley +1 more source
Reflections of the West in Gu Cheng’s Life and Poems
Asian Studies, 2012 Gu Cheng (1957–1993), a prominent member of the “Misty Poets”, lived the last part of his life in the West as he was exiled in 1989. So he stayed abroad separeted from his country and people and unable to cope with the western world.
Anna Simona MARGARITO
doaj +1 more source
A single shot gamma-induced positron spectroscopy based on laser wakefield accelerator
AIP Advances, 2021 Single shot gamma-induced positron annihilation spectroscopy (GiPS) based on a laser wakefield accelerator is proposed. In this spectroscopy, a large number of gamma rays generated by laser-wakefield accelerated electrons are injected into a sample in a ...
Yonghong Yan +9 more
doaj +1 more source
Thickness‐Dependent Skyrmion Evolution in Fe3GeTe2 During Magnetization Reversal
Advanced Functional Materials, EarlyView.Thickness‐ and field‐dependent magnetic domain behavior in 2D van der Waals Fe3GeTe2 is studied using Lorentz TEM and micromagnetic simulations. A patch‐like domain phase evolves from skyrmions during magnetization reversal, and step edges between thickness regions act as pinning sites.
Jennifer Garland +9 more
wiley +1 more source
Mitigating Direct Detection Bounds in Non-minimal Higgs Portal Scalar Dark Matter Models
, 2017 Minimal scalar Higgs portal dark matter model is increasingly in tension with recent results form direct detection experiments like LUX and XENON. In this paper we make a systematic study of minimal extension of the $ \mathbb{Z}_2$ stabilised singlet ...
Bhattacharya, Subhaditya +3 more
core +1 more source
Effects of Bound States on Dark Matter Annihilation [PDF]
, 2016 We study the impact of bound state formation on dark matter annihilation rates in models where dark matter interacts via a light mediator, the dark photon.
H. An, M. Wise, Yue Zhang
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu +14 more
wiley +1 more source
Antideuteron Identification in Space with Helium Calorimeter
InstrumentsThe search for low-energy antideuterons in cosmic rays allows the addressing of fundamental physics problems testing for the presence of primordial antimatter and the nature of Dark Matter.
Francesco Nozzoli +7 more
doaj +1 more source