Results 81 to 90 of about 382,191 (300)

A universal scaling law for the evolution of granular gases

, 2015
Dry, freely evolving granular materials in a dilute gaseous state coalesce into dense clusters only due to dissipative interactions. This clustering transition is important for a number of problems ranging from geophysics to cosmology.
Clewett, James P. D., Hummel, Mathias, Mazza, Marco G.   +2 more
core   +1 more source

Cost‐effectiveness of a randomized controlled trial comparing low‐dose aspirin to placebo for the prevention of recurrent preterm birth

International Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 399-407, April 2025.
Abstract To assess the cost‐effectiveness of low‐dose aspirin compared to placebo for the prevention of recurrent preterm birth from a healthcare perspective. This was a cost‐effectiveness analysis alongside a multicenter, randomized, double‐blinded, placebo‐controlled trial.
Anadeijda J. E. M. C. Landman, Hana M. Broulikova, Laura Visser, Tobias A. J. Nijman, Marieke A. C. Hemels, Karin C. Vollebregt, Elisabeth M. A. Boormans, Henk A. Bremer, Esther Tuinman, Josje Langenveld, Flip van der Made, Robbert J. P. Rijnders, Huib A. A. M. van Vliet, Liv M. Freeman, Roel de Heus, Judith Blaauw, Ineke Krabbendam, Rafli van de Laar, Marieke F. G. Verberg, Hubertina C. J. Scheepers, Ben W. Mol, Christianne J. M. de Groot, Martijn A. Oudijk, Judith E. Bosmans, Marjon A. de Boer   +24 more
wiley   +1 more source

Flight measured and calculated exhaust jet conditions for an F100 engine in an F-15 airplane [PDF]

The exhaust jet conditions, in terms of temperature and Mach number, were determined for a nozzle-aft end acoustic study flown on an F-15 aircraft. Jet properties for the F100 EMD engines were calculated using the engine manufacturer's specification deck.
Burcham, Frank W., Jr., Hernandez, Francisco J.   +1 more
core   +1 more source

Ion acceleration in non-relativistic astrophysical shocks

, 2011
We explore the physics of shock evolution and particle acceleration in non-relativistic collisionless shocks using multidimensional hybrid simulations.
Gargaté, L., Spitkovsky, A.
core   +1 more source

The Role of Obesity in the Association Between Alcohol Consumption and HDL‐c Levels: Baependi Heart Study

Lipids, EarlyView.
ABSTRACT Cardiovascular diseases (CVD) are a leading cause of global mortality, with dyslipidemia playing a central role in their pathogenesis. The influence of alcohol consumption on lipid profiles, particularly high‐density lipoprotein cholesterol (HDL‐c), in relation to obesity status remains insufficiently explored.
Larissa Esthefani Barros Cirino, Divanei Zaniqueli, Oscar Geovanny Enriquez‐Martinez, Camila Maciel de Oliveira, Alexandre da Costa Pereira, Jordana Herzog Siqueira, Rafael de Oliveira Alvim   +6 more
wiley   +1 more source

Research on the Aerodynamic–Propulsion Coupling Characteristics of a Distributed Propulsion System

Applied Sciences
In recent years, the distributed propulsion system has received extensive attention due to its advantages such as high propulsion efficiency, low noise, high safety redundancy, and good flexibility and maneuverability.
Xiaojun Yang, Tao Liu, Wei Jia
doaj   +1 more source

Bridging Classical and Quantum Approaches for Quantitative Sensing of Turbid Media with Polarization‐Entangled Photons

Laser &Photonics Reviews, EarlyView.
This work bridges classical and quantum polarimetry toward quantitative quantum photonic sensing of turbid environments. Theoretical and experimental investigations reveal how polarization‐entangled photonic states evolve in turbid media, uncovering robust trends in entanglement evolution and paving the way for advanced quantum sensing in biomedical ...
Vira R. Besaga, Ivan V. Lopushenko, Oleksii Sieryi, Alexander Bykov, Frank Setzpfandt, Igor Meglinski   +5 more
wiley   +1 more source

Pulse Generation by On‐Chip Dispersion Compensation at 8 µm Wavelength

Laser &Photonics Reviews, EarlyView.
This work demonstrates on‐chip pulse generation at 8 μm$\mathrm{\mu}\mathrm{m}$ using chirped Bragg gratings in SiGe graded‐index photonic circuits to compensate the quadratic phase of quantum cascade laser frequency combs. With this approach pulses as short as 1.39 ps were produced, close to the transform limit, representing a key step toward compact,
Annabelle Bricout, Mathieu Bertrand, Philipp Täschler, Barbara Schneider, Victor Turpaud, Stefano Calcaterra, Davide Impelluso, Marco Faverzani, David Bouville, Jean‐René Coudevylle, Samson Edmond, Etienne Herth, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella, Jérôme Faist, Delphine Marris‐Morini   +17 more
wiley   +1 more source

A Study of the Complex Flow Features Behind a Diffracted Shock Wave on a Convex Curved Wall

Journal of Applied Fluid Mechanics, 2015
The complex flow features behind a diffracted shock wave on a convex curved wall is investigated using large scale experimentation complemented by numerical computation.
adam muritala, B. Skews, craig law
doaj  

Analysis of Influencing Factors of Boundary Layer Transition During Ascent Phase of Hypersonic Vehicle

气体物理
The transition of the boundary layer is an important issue that must be considered in the design of hypersonic vehicles. During the ascent phase of the vehicle, both the Mach number and the flight altitude increase simultaneously and affect the location ...
Yiwei TANG, Chao LI, Caihong SU
doaj   +1 more source