Results 41 to 50 of about 64,072 (295)

Dispensing Volumetric Additive Manufacturing

Advanced Functional Materials, EarlyView.
Dispensing volumetric additive manufacturing (DVAM) prints 3D structures inside a photocurable resin droplet suspended from the tip of a glass pipette, enabling sequential printing without resin vats or manual part removal. Real‐time droplet profiling and ray‐tracing‐based correction compensate for optical distortion at the curved resin‐air interface ...
Hongryung Jeon, Yunsoo Lee, Seobin Park, Kyung‐Hwan Kim, Junyoung Seo, Im Doo Jung   +5 more
wiley   +1 more source

A genetic algorithm for the non-parametric inversion of strong lensing systems

, 2006
We present a non-parametric technique to infer the projected-mass distribution of a gravitational lens system with multiple strong-lensed images. The technique involves a dynamic grid in the lens plane on which the mass distribution of the lens is ...
De Rijcke, S., Dejonghe, H., Liesenborgs, J.   +2 more
core   +1 more source

Discovery of a New Quadruple Lens HST 1411+5211 [PDF]

, 1998
Gravitational lensing is an important tool for probing the mass distribution of galaxies. In this letter we report the discovery of a new quadruple lens HST 1411+5211 found in archived WFPC2 images of the galaxy cluster CL140933+5226.
David Schade, Jorgensen I., L. Felipe Barrientos, Philippe Fischer, Refsdal S., Thimm G. J., Witt H. J.   +6 more
core   +2 more sources

The strong gravitational lens finding challenge [PDF]

Astronomy & Astrophysics, 2019
Large-scale imaging surveys will increase the number of galaxy-scale strong lensing candidates by maybe three orders of magnitudes beyond the number known today. Finding these rare objects will require picking them out of at least tens of millions of images, and deriving scientific results from them will require quantifying the efficiency and bias of ...
Metcalf, R. Benton, Meneghetti, M., Avestruz, Camille, Bellagamba, Fabio, Bom, Clécio R., Bertin, Emmanuel, Cabanac, Rémi, Courbin, F., Davies, Andrew, Decencière, Etienne, Flamary, Rémi, Gavazzi, Raphael, Geiger, Mario, Hartley, Philippa, Huertas-Company, Marc, Jackson, Neal, Jacobs, C., Jullo, Eric, Kneib, Jean-Paul, Koopmans, Léon V.E., Lanusse, François, Li, Chun-Liang, Ma, Quanbin, Makler, Martin, Li, Nan, Lightman, Matthew, Petrillo, Carlo Enrico, Serjeant, Stephen, Schäfer, Christoph, Sonnenfeld, Alessandro, Tagore, Amit, Tortora, Crescenzo, Tuccillo, Diego, Valentín, Manuel B., Velasco-Forero, Santiago, Verdoes Kleijn, Gijs A., Vernardos, Georgios   +36 more
openaire   +7 more sources

Orbital Electrowetting: From Continuous Droplet Transport to Programmable Microfluidics

Advanced Materials, EarlyView.
This work comprehensively summarizes the mechanisms, recent advances, potential applications, and key challenges of orbital electrowetting. It highlights that integrating orbital electrowetting with conventional electrowetting is required to enable complete digital‐microfluidic workflows while simplifying platform architecture.
Jie Tan, Jiayu Du, Dong Lv, Yikui Gao, Dongyue Jiang, Zuankai Wang, Wenjie Liu, Chi Yan Tso   +7 more
wiley   +1 more source

The Effects of Massive Substructures on Image Multiplicities in Gravitati onal Lenses

, 2003
Surveys for gravitational lens systems have typically found a significantly larger fraction of lenses with four (or more) images than are predicted by standard ellipsoidal lens models (50% versus 25-30%).
C. S. Kochanek, J. D. Cohn, Jaffe W., King L. J., Kochanek C. S., Patnaik A. R., Seitz S.   +6 more
core   +3 more sources

Effects of the core radius of an isothermal ellipsoidal gravitational lens on the caustics and the critical curves [PDF]

, 2004
We study the effect of the core radius of an isothermal ellipsoidal gravitational lens on the caustics and the critical curves. We derive an analytic expression of the caustics for an isothermal ellipsoidal gravitational lens via a sixth-order algebraic ...
Asada, H. Asada
core   +1 more source

Topological Point Defects in SmC* Liquid Crystals Under Mechanical Disturbance

Advanced Materials Interfaces, EarlyView.
Tangetial air jet shear inducess island formation and nucleates topological point defects in uniform SmC films. Island bounded by edge dislocation loops shrink and transform into isolated point defects under continued shear. Mechanical perturbatio provides a controllable route for defect engineering in smectric liquid crystal thin films.
Gunganist Kongklad, Vandana Molahalli, Apichart Pattanaporkratana, Nattaporn Chattham   +3 more
wiley   +1 more source

The Longest Delay: A 14.5 yr Campaign to Determine the Third Time Delay in the Lensing Cluster SDSS J1004+4112

The Astrophysical Journal, 2022
We present new light curves for the four bright images of the five image cluster-lensed quasar gravitational lens system SDSS J1004+4112. The light curves span 14.5 yr and allow the measurement of the time delay between the trailing bright quasar image D
J. A. Muñoz, C. S. Kochanek, J. Fohlmeister, J. Wambsganss, E. Falco, R. Forés-Toribio   +5 more
doaj   +1 more source

First Observation of Parallax in a Gravitational Microlensing Event [PDF]

, 1995
We present the first detection of parallax effects in a gravitational microlensing event. Parallax in a gravitational microlensing event observed only from the Earth appears as a distortion of the lightcurve due to the motion of the Earth around the Sun.
A. W. Rodgers,, B. A. Peterson,, Benetti S., C. Alcock,, C. W. Stubbs,, D. Alves,, D. P. Bennett,, J. Guern,, K. C. Freeman,, K. Griest,, K. H. Cook,, M. J. Lehner,, M. R. Pratt,, P. J. Quinn,, R. A. Allsman,, Refsdal S., S. L. Marshall,, T. S. Axelrod,, Udalski A., Udalski A., W. Sutherland   +20 more
core   +2 more sources