Results 41 to 50 of about 102,032 (239)

Deconstructing Photospheric Spectral Lines in Solar and Stellar Flares

The Astrophysical Journal
During solar flares, spectral lines formed in the photosphere have been shown to exhibit changes to their profiles despite the challenges of energy transfer to these depths.
Aaron J. Monson, Mihalis Mathioudakis, Adam F. Kowalski   +2 more
doaj   +1 more source

An Analytic Model for the Evolution of the Stellar, Gas, and Metal Content of Galaxies

, 2011
We present an analytic formalism that describes the evolution of the stellar, gas, and metal content of galaxies. It is based on the idea, inspired by hydrodynamic simulations, that galaxies live in a slowly-evolving equilibrium between inflow, outflow ...
Benjamin D. Oppenheimer, Benson, Bolatto, Bouche, Bresolin, Brooks, Cattaneo, Chabrier, Croton, Daddi, Davé, Davé, Davé, Davé, Dekel, Dekel, Dekel, Di Matteo, Dutton, Eisenstein, Ellison, Erb, Fakhouri, Faucher-Giguere, Finlator, Finlator, Finlator, Gabor, Geach, Genel, Genzel, Genzel, Gnedin, González, Graham, Grogin, Gultekin, Hopkins, Jogee, Katz, Kennicutt, Kereš, Koekemoer, Kristian Finlator, Krumholz, Krumholz, Lara-López, Lee, Mannucci, McBride, Mihos, Mo, Moran, Murray, Neistein, Neistein, Neistein, Noeske, Ocvirk, Okamoto, Oppenheimer, Oppenheimer, Oppenheimer, Papovich, Pawlik, Peeples, Peeples, Rasera, Rees, Rodighiero, Romeel Davé, Rubin, Salim, Schaye, Silk, Simha, Somerville, Springel, Steidel, Tacconi, Thoul, Tremonti, Tully, van de Voort, White, White   +85 more
core   +1 more source

Using Surface-Motions for Locomotion of Microscopic Robots in Viscous Fluids [PDF]

, 2014
Microscopic robots could perform tasks with high spatial precision, such as acting in biological tissues on the scale of individual cells, provided they can reach precise locations.
Hogg, Tad
core   +1 more source

Kinetic Insights into Precursor‐Assisted Soft Sphere Close Packing Revealed by In Situ GISAXS with Implications for Gas Sensing

Advanced Functional Materials, EarlyView.
The versatile precursor‐assisted soft sphere close packing during slot‐die coating is investigated with in situ X‐ray scattering. The soft crystallization pathways towards a close packing involve multistep structural transitions such as surface nucleation, in‐plane, and out‐of‐plane crystallization.
Guangjiu Pan, Wenhe Xie, Suzhe Liang, Ting Tian, Shanshan Yin, Lixing Li, Altantulga Buyan‐Arivjikh, Jinsheng Zhang, Thomas Baier, Zhuijun Xu, Matthias Schwartzkopf, Sarathlal Koyiloth Vayalil, Stephan V. Roth, Yonghui Deng, Peter Müller‐Buschbaum   +14 more
wiley   +1 more source

Hydrodynamic crystals: collective dynamics of regular arrays of spherical particles in a parallel-wall channel

, 2008
Simulations of over $10^3$ hydrodynamically coupled solid spheres are performed to investigate collective motion of linear trains and regular square arrays of particles suspended in a fluid bounded by two parallel walls.
Baron, M., Blawzdziewicz, J., Wajnryb, E.   +2 more
core   +1 more source

Modelling the Interfacial Flow of Two Immiscible Liquids in Mixing Processes [PDF]

, 2005
This paper presents an interface tracking method for modelling the flow of immiscible metallic liquids in mixing processes. The methodology can provide an insight into mixing processes for studying the fundamental morphology development mechanisms for ...
Agassant, Ahlborn, Alkemper, Andersen, Barthelet, Bergman, Booy, Brackbill, Carberg, Charru, Cheremisinoff, Coveney, Cristini, Efendiev, Fan, Fife, H. Tang, Hirt, Hirt, Hultgren, Iida, Issa, Jansen, Ji, Joseph, Kupper, L.C. Wrobel, Launder, Leptoukh, Li, Li, Meijer, Novik, Osher, Peng, Ratke, Ratke, Rauwendaal, Rauwendaal, Rogers, Rothman, Scardovelli, Smoluchowiski, Stüben, Tang, Unverdi, White, Wu, Yeung, Youngs, Zhao, Zhao, Zhao, Zhao   +53 more
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Formation of offshore tidal sandbanks triggered by a gasmined bed subsidence [PDF]

, 2002
Offshore gasmining is an example of a human intervention with a morphological impact. On land, it is usually attended with a dish-like bed depression.
Hulscher, Suzanne J.M.H., Roos, Pieter C.   +1 more
core   +2 more sources

Continuous‐Flow Photocatalytic Degradation of Glyphosate and Aminomethylphosphonic Acid Under Simulated Sunlight with TiO2‐Coated Poly(vinylidene fluoride) Membrane

Advanced Functional Materials, EarlyView.
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh, Siqi Liu, Nurul F. Himma, Béla Fiser, Andrea I. Schäfer   +4 more
wiley   +1 more source

On the Signature of Black Holes on the Quenched Stellar Mass Function

The Astrophysical Journal
As star-forming galaxies approach or exceed a stellar mass of around 10 ^11 M _⊙ , they are increasingly likely to be quenched in a process generically called mass quenching.
Antonio J. Porras-Valverde, John C. Forbes   +1 more
doaj   +1 more source