Results 51 to 60 of about 10,063 (256)

Scattering of gravitational radiation: second order moments of the wave amplitude [PDF]

, 2004
Gravitational radiation that propagates through an inhomogeneous mass distribution is subject to random gravitational lensing, or scattering, causing variations in the wave amplitude and temporal smearing of the signal.
Armstrong, Bliokh, Bontz, Deguchi, Deguchi, Detweiler, Dickey, Goodman, Gupta, J.-P. Macquart, Katz, Lee, Little, Mandzhos, Narayan, Ohanian, Ohanian, Peterson, Rickett, Ruffa, Salpeter, Sazhin, Schneider, Sofue, Stanimirovic, Takahashi   +25 more
core   +3 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Phase Retrieval with Application to Optical Imaging [PDF]

, 2014
This review article provides a contemporary overview of phase retrieval in optical imaging, linking the relevant optical physics to the information processing methods and algorithms.
Chapman, Henry N., Cohen, Oren, Eldar, Yonina C., Miao, Jianwei, Segev, Mordechai, Shechtman, Yoav   +5 more
core   +2 more sources

Ab initio compressive phase retrieval

, 2008
Any object on earth has two fundamental properties: it is finite, and it is made of atoms. Structural information about an object can be obtained from diffraction amplitude measurements that account for either one of these traits. Nyquist-sampling of the
Marchesini, S.
core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Producing focused extreme ultraviolet vortex with Fermat-spiral photon sieves

PhotoniX
Extreme ultraviolet (EUV) light is difficult to focus due to strong absorption of most materials. Photon sieves (PS), rather than Fresnel zone plates (FZP), can focus EUV to smaller spot and suppress the higher orders of secondary maxima by several ...
Junyong Zhang, Huaiyu Cui, Yuanyuan Liu, Xiuping Zhang, You Li, Dongdi Zhao, Yongpeng Zhao, Qiwen Zhan   +7 more
doaj   +1 more source

Enhancement of coherent X-ray diffraction from nanocrystals by introduction of X-ray optics

Optics Express, 2003
Coherent X-ray Diffraction is applied to investigate the structure of individual nanocrystalline silver particles in the 100nm size range. In order to enhance the available signal, Kirkpatrick-Baez focusing optics have been introduced in the 34-ID-C beamline at APS.
Robinson, I, Pfeiffer, F, Vartanyants, IA, Sun, Y, Xia, Y   +4 more
openaire   +3 more sources

Direct Inversion of Digital 3D Fraunhofer Holography Maps

, 2015
The Differential Fourier Holography (DFH) gives an exact mathematical solution of the inverse problem of diffraction in the Fraunhofer regime. After the first publication [1] the Differential Fourier Holography was successfully applied in many ...
Förster, Eckhart, Podorov, Sergey G.
core   +1 more source

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

Advanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein, Oliver Schenk, Christoph Broeckmann   +2 more
wiley   +1 more source

High-resolution x-ray telescopes

, 2010
High-energy astrophysics is a relatively young scientific field, made possible by space-borne telescopes. During the half-century history of x-ray astronomy, the sensitivity of focusing x-ray telescopes-through finer angular resolution and increased ...
Brissenden, R. J., Davis, W. N., Elsner, R. F., Elvis, M., Freeman, M., Gaetz, T., Gorenstein, P., Gubarev, M. V., Jerius, D., Juda, M., Kolodziejczak, J. J., Murray, S., O'Dell, S. L., Petre, R., Podgorski, W., Ramsey, B. D., Reid, P. B., Saha, T., Schwartz, D. A., Trolier-McKinstry, S., Weisskopf, M. C., Wilke, R. H. T., Wolk, S., Zhang, W. W.   +23 more
core   +1 more source