Results 101 to 110 of about 94,894 (308)

The Influence of Swirl Brakes and a Tip Discharge Orifice on the Rotordynamic Forces Generated by Discharge-to-Suction Leakage Flows in Shrouded Centrifugal Pumps [PDF]

open access: yes, 1993
This paper reports on experiments conducted in the Rotor Force Test Facility at the California Institute of Technology to examine the effects of a tip leakage restriction and swirl brakes on the rotordynamic forces due to leakage flows on an impeller ...
Acosta, A. J.   +3 more
core   +2 more sources

Melt-Mixing by Novel Pitched-Tip Kneading Disks in a Co-Rotating Twin-Screw Extruder

open access: yes, 2010
Melt-mixing in twin-screw extruders is a key process in the development of polymer composites. Quantifying the mixing performance of kneading elements based on their internal physical processes is a challenging problem.
Alsteens   +32 more
core   +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

Precise Control of Drug Release in Machine Learning‐Designed Antibody‐Eluting Implants for Postoperative Scarring Inhibition in Glaucoma

open access: yesAdvanced Healthcare Materials, EarlyView.
We developed a micro‐sized, biocompatible implant for postoperative sustained delivery of anti‐fibrotic antibodies in glaucoma surgery. Machine learning‐guided optimization of polymer composition, implant geometry, and porosity enabled precise control of drug release.
Mengqi Qin   +5 more
wiley   +1 more source

Energy Performance and Radial Force of a Mixed-Flow Pump with Symmetrical and Unsymmetrical Tip Clearances

open access: yesEnergies, 2017
The energy performance and radial force of a mixed flow pump with symmetrical and unsymmetrical tip clearance are investigated in this paper. As the tip clearance increases, the pump head and efficiency both decrease.
Yue Hao   +5 more
doaj   +1 more source

Fluorescent Polymeric Nanofibers as Ratiometric Multiplexed Skin Sensors of pH and Oxygen

open access: yesAdvanced Healthcare Materials, EarlyView.
Fluorescent polymeric nanofibers and nanorods are produced as ratiometric sensors of two important physiological parameters: pH and oxygen. They operate by dual Forster resonance energy transfer from large number of energy donor dyes to limited number of two distinct energy acceptors, enabling simultaneous sensing of pH and oxygen.
Rémi Pelletier   +2 more
wiley   +1 more source

Energy performance and flow characteristics of a multiphase pump with different tip clearance sizes

open access: yesAdvances in Mechanical Engineering, 2019
Deep sea oil resources worldwide possess great potential for exploration; however, multiphase medium technology requires urgent development. The multiphase pump has achieved great success as one of the most advanced machinery in underwater oil and gas ...
Jinsong Zhang   +3 more
doaj   +1 more source

Unsteady flow mechanisms in the last stage of a transonic low pressure steam turbine - multistage effects and tip leakage flows

open access: yesJournal of the Global Power and Propulsion Society, 2017
In this paper, an unsteady investigation of the last two stages of a low-pressure steam turbine with supersonic airfoils near the tip of the last stage’s rotor blade is presented.
Ilias Papagiannis   +6 more
doaj   +1 more source

Development of a Synthetic 3D Platform for Compartmentalized Kidney In Vitro Disease Modeling

open access: yesAdvanced Healthcare Materials, EarlyView.
A fully synthetic, compartmentalized 3D kidney disease model is introduced. The kidney model combines a PEG‐based hydrogel matrix with anisotropic, enzymatically degradable rod‐shaped microgels to spatially arrange a triple co‐culture of key renal epithelial, endothelial, and fibroblast cells.
Ninon Möhl   +8 more
wiley   +1 more source

An Experimental Investigation of the Flow Physics Associated With End Wall Losses and Large Rotor Tip Clearances as Found in the Rear Stages of a High Pressure Compressor [PDF]

open access: yes
The focus of this work was to characterize the fundamental flow physics and the overall performance effects due to increased rotor tip clearance heights in axial compressors. Data have been collected in the three-stage axial research compressor at Purdue
Berdanier, Reid A., Key, Nicole L.
core   +1 more source

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