Results 31 to 40 of about 4,317 (244)

Large Eddy Simulation of Externally Induced Ingress about an Axial Seal by Stator Vanes

open access: yesEnergies, 2023
Turbine inlet temperatures in advanced gas turbines could be as high as 2000 °C. To prevent ingress of this hot gas into the wheelspace between the stator and rotor disks, whose metals can only handle temperatures up to 850 °C, rim seals and sealing ...
Sabina Nketia   +3 more
doaj   +1 more source

The Aero-Thermal Impact of Rim Seal Purge Flow in Axial Turbines [PDF]

open access: yes, 2023
The area between the stationary and rotating hub side endwall segments in axial turbines is featured with a specifically shaped annular clearance, termed as the rim seal.
Ostrowski, Tom
core   +1 more source

Aerodynamic and heat transfer performances of a highly loaded transonic turbine rotor with upstream generic rim seal cavity

open access: yesPropulsion and Power Research, 2021
In turbine disk cavity, rim seals are fitted between the stator and its adjacent rotor disk. A coolant air injected through the turbine disk cavity to prevent the ingress of mainstream hot gases.
Zakaria Mansouri
doaj   +1 more source

A Rim Seal Ingress Model Based on Turbulent Transport

open access: yes, 2017
Recent experimental work from the present authors demonstrated that interactions between the mainstream and cavity/rim seal flows lead to ingestion mechanisms with a range of length scales.
Svilen S. Savov, Nicholas R. Atkins
core   +2 more sources

Arthroscopic Labralization of the Hip: An Alternative to Labral Reconstruction

open access: yesArthroscopy Techniques, 2014
Labralization, which may be performed by open or arthroscopic means, may be an attractive alternative to hip labral reconstruction. By preserving the articular cartilage in the region of labral deficit with meticulous rim trimming, the resultant ...
Dean K. Matsuda, M.D.
doaj   +1 more source

Arthroscopic Hip Labral Repair

open access: yesArthroscopy Techniques, 2013
Labral tears in the hip may cause painful clicking or locking of the hip, reduced range of motion, and disruption to sports and daily activities. The acetabular labrum aids stabilization of the hip joint, particularly during hip motion.
Marc J. Philippon, M.D.   +2 more
doaj   +1 more source

A tether for Woronin body inheritance is associated with evolutionary variation in organelle positioning. [PDF]

open access: yesPLoS Genetics, 2009
Eukaryotic organelles evolve to support the lifestyle of evolutionarily related organisms. In the fungi, filamentous Ascomycetes possess dense-core organelles called Woronin bodies (WBs).
Seng Kah Ng   +4 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Phanerozoic Large Igneous Province, Petroleum System, and Source Rock Links

open access: yesGeophysical Monograph Series, Page 191-228., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Steven C. Bergman   +2 more
wiley  

+1 more source

Effects of tract embolization on pneumothorax rate after percutaneous pulmonary microwave ablation: a rabbit study

open access: yesInternational Journal of Hyperthermia, 2023
Purpose To determine the effects of tract embolization with gelatin sponge particles on the prevention of pneumothorax after percutaneous microwave ablation (MWA) in rabbit lungs.Materials and methods Twenty-four New Zealand white rabbits were randomly ...
JinZhao Peng   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy