Results 51 to 60 of about 1,105,756 (226)
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 +24 more
wiley +1 more source
The discovery of the Mach reflection effect and its demonstration in an auditorium
, 2022 S.3-15 : Abb.,Lit.This paper examines the historical background leading to the discovery of the Mach reflection effect and applies original documents from Mach's residue which are kept in the archives of the Ernst-Mach-Institut in Freiburg.
Krehl, P., Geest, M. van der
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Study of Mach reflection in inviscid flows [PDF]
, 2023 In this paper, we study the Mach reflection phenomenon in inviscid flows using a higher order discontinuous Galerkin method and overset grids. We use the shock capturing procedure proposed in Siva Prasad Kochi et al.
Ramakrishna, M, Kochi, S R Siva Prasad
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Laser &Photonics Reviews, EarlyView.Coherence variation is ubiquitous in nature, yet determining how it constrains physical observables remains challenging for multimode waves. To address this challenge, this work establishes a majorization‐based theory that identifies the supremum and infimum in the set of input coherence spectra, which provide optimal universal bounds for any linear ...
Shiyu Li, Cheng Guo
wiley +1 more source
Low Mach Asymptotic Preserving Scheme for the Euler-Korteweg Model [PDF]
, 2013 We present an all speed scheme for the Euler-Korteweg model. We study a semi-implicit time-discretisation which treats the terms, which are stiff for low Mach numbers, implicitly and thereby avoids a dependence of the timestep restriction on the Mach ...
Giesselmann, Jan
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Magnetogasdynamic Flow Control of a Mach Reflection [PDF]
, 2004 Two-dimensional regular and Mach reflections have been studied in the Mach 4.96 dual-solution domain for a 25° and 26° double-fin inlet. The steady-state computational Mach and regular reflections were subjected to magnetogasdynamic forces to determine ...
Earp, Brian E.
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Laser &Photonics Reviews, EarlyView.A high‐speed, efficient, robust, and compact 2‐μm$\mathrm{\mu}\mathrm{m}$ waveband E/O absorption modulator based on a graphene‐silicon slot waveguide is demonstrated. This work represents a significant advancement towards the realization of high‐speed integrated E/O modulators for optical communication systems operating at the 2‐μm$\mathrm{\mu}\mathrm{
Chao Luan +3 more
wiley +1 more source
On the origin of field-aligned beams at the quasi-perpendicular bow shock: multi-spacecraft observations by Cluster [PDF]
Annales Geophysicae, 2004 Two distinct populations of reflected and accelerated ions are known to originate from quasi-perpendicular shocks, gyrating ions and reflected ion beams.
H. Kucharek +8 more
doaj +1 more source
Simultaneous ToF/FMCW LiDAR Using a Dual‐Mode Light Source in a Single Architecture
Laser &Photonics Reviews, EarlyView.A simultaneous ToF/FMCW LiDAR architecture is demonstrated using a dual‐mode light source that alternately generates optical pulses and frequency‐chirped light within a single acquisition. By combining time‐domain ToF and coherent FMCW ranging, the system achieves high‐resolution ranging and velocity sensing while extending the measurable range beyond ...
Gyeongmin Kweon +5 more
wiley +1 more source
ALEGRA Validation Studies for Regular, Mach, and Double Mach Shock Reflection in Gas Dynamics [PDF]
, 2002 In this report we describe the performance of the ALEGRA shock wave physics code on a set of gas dynamic shock reflection problems that have associated experimental pressure data. These reflections cover three distinct regimes of oblique shock reflection
Chen, Mary I., Trucano, Timothy G.
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