Results 71 to 80 of about 1,341,415 (398)

Vented piston seal prevents fluid leakage between two chambers [PDF]

, 1964
To prevent fluid leakage around piston seals separating two fluids under differential pressure, a venting system has been devised. Two methods may be used for venting seals through internal passages to an external low-pressure area, O-ring or split-ring ...
Mac Glashan, W. F., Morrison, R.
core   +1 more source

Transport and stirring induced by vortex formation [PDF]

, 2007
The purpose of this study is to analyse the transport and stirring of fluid that occurs owing to the formation and growth of a laminar vortex ring. Experimental data was collected upstream and downstream of the exit plane of a piston-cylinder apparatus ...
Dabiri, J. O., Katija, K., Marsden, J. E., Rosenfeld, M., Shadden, S. C.   +4 more
core   +3 more sources

Modeling SNR Cassiopeia A from the Supernova Explosion to its Current Age: The role of post-explosion anisotropies of ejecta [PDF]

, 2016
The remnants of core-collapse supernovae (SNe) have complex morphologies that may reflect asymmetries and structures developed during the progenitor SN explosion. Here we investigate how the morphology of the SNR Cassiopeia A (Cas A) reflects the characteristics of the progenitor SN with the aim to derive the energies and masses of the post-explosion ...
arxiv   +1 more source

Immunosuppressive Formulations for Immunological Defense against Traumatic Brain Injury

Advanced Healthcare Materials, EarlyView.
A novel subcutaneous formulation combining alpha‐ketoglutarate, glycolysis inhibitor PFK15, and a myelin peptide reduces inflammation in a mouse TBI model. This formulation promotes regulatory immune cells, enhances autophagy, and improves motor function, suggesting its potential as a prophylactic immunosuppressive therapy to mitigate TBI‐induced ...
Kelly Lintecum, Abhirami Thumsi, Kara Dunn, Lindsey Druschel, Sierra Chimene, David Flores Prieto, Amberlyn Simmons, Shivani Mantri, Arezoo Esrafili, Srivatsan J. Swaminathan, Mytreyi Trivedi, Shreya Anandan, Crystal Willingham, Alondra Davila, Sahil Inamdar, Joslyn L. Mangal, Abhirami P. Suresh, Niveda M. Kasthuri, Madan Mohan Chandra Sekhar Jaggarapu, Nicole Appel, Taravat Khodaei, Nathan D. Ng, Alison Sundem, Sanmoy Pathak, George Bjorklund, Jason Newbern, Jeffrey Capadona, Sarah E. Stabenfeldt, Abhinav P. Acharya   +28 more
wiley   +1 more source

TEMPERATURE EFFECT IN MINIMUM OIL FILM THICKNESS MEASUREMENTS IN A SIMPLIFIED SINGLE-RING TEST RIG USED TO SIMULATE THE PISTON-CYLINDER ASSEMBLY [PDF]

Proceedings on Engineering Sciences, 2019
As part of the study of the complex lubrication phenomena between the piston-ring and the cylinder liner, it is important to characterize the oil film thickness in view of new designs that can be implemented for the piston-ring assembly.
Polychronis S. DELLIS
doaj   +1 more source

Thermohydrodynamic Lubrication Characteristics of Piston Rings in Diesel Engine Considering Transient Heat Transfer under the Parameterized Surface Texture of Cylinder Liners

Energies, 2023
The cylinder liner and piston ring form the most crucial friction pair in the diesel engine, contributing 35–40% of its overall friction losses. Recent research indicates that transient heat transfer significantly affects piston ring lubrication. However,
Hongyang Zhang, Xiaori Liu, Junzhen Gong, Shuzhan Bai, Ke Sun, Haoran Jia   +5 more
doaj   +1 more source

Elastohydrodynamic Lubrication (EHL) of Piston Rings in the Internal Combustion Engine [PDF]

, 2016
The paper analyzes the numerical model of elastohydrodynamic lubrication (EHL) of piston rings in the cylinder liner of the internal combustion engine (ICE).
Asaulyak, A.A., Gavrilov, K.V., Rozhdestvenskii, Y.V.   +2 more
core   +1 more source

Anomalous Structure and Scaling of Ring Polymer Brushes [PDF]

, 2011
A comparative simulation study of polymer brushes formed by grafting at a planar surface either flexible linear polymers (chain length $N_L$) or (non-catenated) ring polymers (chain length $N_R=2 N_L$) is presented. Two distinct off-lattice models are studied, one by Monte Carlo methods, the other by Molecular Dynamics, using a fast implementation on ...
arxiv   +1 more source

Formation and dynamics of a semi vortex ring connected to a free surface [PDF]

arXiv, 2022
Playing a role in the locomotion of some animals such as the water strider, the formation and dynamics of a semi vortex ring connected to a free surface are experimentally investigated. This semi vortex ring is generated by the circular motion of a flat circular disk in water.
arxiv  

Mechanistic Insights into the Surface Instabilities of TiNb2O7, a High‐Power Li‐Ion Anode

Advanced Materials Interfaces, EarlyView.
TiNb2O7 is an attractive anode for Li‐ion batteries, particularly when safety is of the highest concern. However, despite operating at high potentials, electrolyte degradation is a major concern. It is demonstrated that throughout the entire charge‐discharge cycle a number of surface reactions occur which both produce gas and result in Ti dissolution ...
Stephanie Bazylevych, Łukasz Kondracki, J. Michael Sieffert, Alex Hebert, Sang‐Jun Lee, Hirohito Ogasawara, Sigita Trabesinger, Eric McCalla   +7 more
wiley   +1 more source