Results 81 to 90 of about 12,784 (202)

Optical Velocimetry

, 2004
This work considers current potential uses of laser Doppler velocimetry. A discussion of other optical velocimetry techniques is presented and compared with their practical application to modern shock physics diagnostics, such as VISAR.
Buttler, W. T., Lamoreaux, S. K., Omenetto, F. G., Torgerson, J. R.   +3 more
openaire   +2 more sources

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

Advanced Materials, Volume 38, Issue 43, 3 August 2026.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang, Byeongseok Ryu, Sujeong Ahn, Junhyub Kim, Myeonghun Jang, Jeong Ho Cho, Won‐Gun Koh, Hyungsuk Lee   +7 more
wiley   +1 more source

Plasmon‐Induced Optothermal Manipulation of Colloidal Particles and Biological Entities Resilient to Saline Environments

Advanced Optical Materials, Volume 14, Issue 29, 7 August 2026.
The particle with high surface hydrophilicity exhibits strong thermophoretic attraction, as its dense hydration layer enhances the role of interfacial water molecules in determining thermophoretic mobility over other ionic effects. This finding elucidates the mechanism underlying the robust thermophoretic accumulation of Escherichia coli in high ...
Seungyeop Kang, Louis Quaire‐‐Merlin, Alex J. Thompson, Jang Ah Kim   +3 more
wiley   +1 more source

Laser Doppler Velocimetry [PDF]

Journal of the Royal Society of Medicine, 1987
J F, Lancaster, M, Lucarotti, D J, Leaper   +2 more
openaire   +2 more sources

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

Advanced Science, Volume 13, Issue 45, 13 August 2026.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang, Steve Gaudez, Mario Togni, Steven Van Petegem, Markus Bambach, Mamzi Afrasiabi   +5 more
wiley   +1 more source

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

Advanced Intelligent Systems, Volume 8, Issue 8, August 2026.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

Managing TRAP Sequence Conservatively: A Case Report of Full‐Term Pregnancy With Favorable Outcome

Clinical Case Reports, Volume 14, Issue 8, August 2026.
ABSTRACT Acardiac twinning, also known as Twin reversed arterial perfusion (TRAP) sequence, is a rare anomaly seen exclusively in monochorionic twin pregnancies. It occurs due to abnormal placental vascular anastomoses, allowing retrograde perfusion from healthy “pump” twin to severely malformed twin lacking a functional heart.
Bishal Khaniya, Ayush Shrestha, Anish Sah, Rita Adhikari, Sujata Bhandari, Aashish Bhandari, Ram Aryal, Sameep Sapkota, Puspa Raj Bham, Madhur Bhattarai   +9 more
wiley   +1 more source

Thromboinflammatory biomarkers in obstetric pathophysiology: Predictive insights into placental insufficiency and feto‐maternal adverse outcomes

Clinical and Translational Discovery, Volume 6, Issue 4, August 2026.
Placental insufficiency is a thromboinflammatory disorder driven by angiogenic imbalance, complement activation, endothelial dysfunction and coagulation dysregulation, leading to microvascular thrombosis, impaired uteroplacental perfusion and adverse maternal and fetal outcomes, including pre‐eclampsia, fetal growth restriction and stillbirth. Abstract
Emmanuel Ifeanyi Obeagu
wiley   +1 more source

An Optical Flow Algorithm with Automatic Parameter Adjustment for Fluid Velocimetry

Journal of Open Research Software
Particle image velocimetry is a standard non-intrusive experimental fluid mechanics technique that is used for determining fluid flow velocities quantitatively.
Gauresh Raj Jassal, William Thielicke, Bryan E. Schmidt   +2 more
doaj   +1 more source

Rheological Modeling and Numerical Simulation of Annular Flow of a Drilling Mud Based on Local Materials: Theoretical Parametric Study

Engineering Reports, Volume 8, Issue 8, August 2026.
Numerical and analytical modeling of annular flow reveals the hydraulic performance of sustainable drilling muds formulated from Congolese kaolinitic clay, okra mucilage, and plant ashes. Yield stress enhances cuttings transport, while shear‐thinning behavior reduces pressure losses and pumping energy.
Stanislas Ulrich Berry Moukila
wiley   +1 more source