Results 91 to 100 of about 93,522 (307)

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

open access: yesAdvanced Materials, EarlyView.
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   +7 more
wiley   +1 more source

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

open access: yesAdvanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim   +10 more
wiley   +1 more source

Investigation of Turbulent Tip Leakage Vortex in an Axial Water Jet Pump with Large Eddy Simulation [PDF]

open access: yes
Detailed steady and unsteady numerical studies were performed to investigate tip clearance flow in an axial water jet pump. The primary objective is to understand physics of unsteady tip clearance flow, unsteady tip leakage vortex, and cavitation ...
Hah, Chunill, Katz, Joseph
core   +1 more source

Localized Temperature Monitoring in Mouse Brain during Light Delivery via a Non‐Planar Tapered Fiber‐Integrated µRTD Sensor

open access: yesAdvanced Materials, EarlyView.
We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena   +6 more
wiley   +1 more source

An Investigation on the Effect of Endwall Movement on the Tip Clearance Loss Using Annular Turbine Cascade

open access: yesInternational Journal of Rotating Machinery, 2011
The aerodynamic losses in gas turbines are mainly caused by profile loss secondary flow, and tip leakage loss. This study focuses on tip leakage flow of high-pressure turbine stages.
Hesham M. El-Batsh, Magdy Bassily Hanna
doaj   +1 more source

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

open access: yesAdvanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief   +12 more
wiley   +1 more source

Experimental study on tip leakage flow in axial flow rotating blades.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1985
軸流回転翼列における翼先端付近の流れ場が翼先端すきまによってどのように影響されるかを全体性能および内部流動の測定により調べた.単一傾斜熱線による周期的多点抽出法を用いて,動翼後方で統計的に精度の高い三次元流れ場を求めた結果,漏れ渦を明確に観察でき,下流に行くに従い漏れ渦が隣接翼の伴流と干渉する様子も明らかにできた.またLakshminarayanaが提案する漏れ渦の計算モデルと実験結果とを比較検討した.
Masahiro INOUE   +4 more
openaire   +2 more sources

Blood flow ratio in the gastric conduit measured by laser Doppler flowmetry: A predictor of anastomotic leakage after esophagectomy

open access: yesAnnals of Gastroenterological Surgery
Background Anastomotic leakage after esophagectomy is a common complication. Laser Doppler flowmetry (LDF) can quantitatively evaluate the blood flow in the gastric conduit.
Hirotaka Ishida   +9 more
doaj   +1 more source

Investigation of hydraulic transient flow and dynamic response performance of axial pump based on novel vibration signals characteristics and numerical analyses

open access: yesAlexandria Engineering Journal
Simulation studies were conducted to investigate structure of internal flow and pulsation in pressure properties of pumps under different flow circumstances.
Ahmed Ramadhan Al-Obaidi, Anas Alwatban
doaj   +1 more source

3D CFD analysis of an oil injected twin screw expander [PDF]

open access: yes, 2014
Small scale Organic Rankine Cycle (ORC) systems have a big potential for waste heat recovery in the market. Due to the smaller volume flows inside these systems, non-conventional expansion technologies such as screw expanders become more interesting ...
Degroote, Joris   +2 more
core   +1 more source

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