Results 91 to 100 of about 226,450 (350)

Wave‐Partition‐Governed Dual‐Site Spallation in Single Crystals

open access: yesAdvanced Science, EarlyView.
Crystalline anisotropy shapes shock‐wave propagation and the resulting damage evolution in single crystals. Large‐scale molecular dynamics and damage modeling uncover a dual‐spallation mechanism driven by anisotropic elasticplastic wave separation, which mitigates damage accumulation.
Youlin Zhu   +6 more
wiley   +1 more source

Effect of geometric shape of piston on power loss of sliding part between piston and cylinder in swash plate type piston pump and motor

open access: yesNihon Kikai Gakkai ronbunshu, 2018
The power loss due to the friction and the leakage in the sliding part between piston and cylinder of a swash plate type piston pump and motor affects the equipment performance and the efficiency.
Kazuhiko TANAKA   +3 more
doaj   +1 more source

Overview of free-piston Stirling engine technology for space power application [PDF]

open access: yes, 1987
An overview is presented of free-piston Stirling engine activities, directed toward space power applications. One of the major elements of the program is the development of advanced power conversion.
Slaby, Jack G.
core   +1 more source

Motion of Pistons in Piston-Type Hydraulic Machines : 3rd. Report : Exponential Function-Type Piston

open access: yesBulletin of JSME, 1975
To stabilize the motion of pistons, it is possible to use such a piston that the film thickness between the cylinder and the piston varies exponentially with the longitudinal position along the piston. For piston-type hydraulic pumps and motors the numerical results indicate that in such a piston in which the film is thicker on the high pressure side ...
openaire   +3 more sources

EIF5A Couples Translational Control With Transcriptional Reprogramming Through Chromocenter Reorganization During Spermiogenesis

open access: yesAdvanced Science, EarlyView.
The translation factor Eukaryotic translation initiation factor 5A (eIF5A) is essential for male fertility in mice. It supports the translation of proteins crucial for heterochromatin organization and acrosome formation. eIF5A deficiency disrupts chromocenter integrity, increases chromatin accessibility, and causes transcriptional dysregulation ...
Yuling Cai   +15 more
wiley   +1 more source

THE REASONS OF INTENSIVE WEAR OF CYLINDERS OF YAMZ ENGINES – 238NB

open access: yesВестник СибАДИ, 2017
It is stated results of control in the course of repair of technical condition of cylinders of engines. Need of diagnosing of cylinders in structural parameters by direct measurements with partial or full dismantling of engines is proved. The description
S. A. Kornilovich
doaj   +1 more source

Device induces lungs to maintain known constant pressure [PDF]

open access: yes, 1964
This device requires the use of thoracic muscles to maintain prescribed air pressure in the lungs for brief periods. It consists of a clear plastic hollow cylinder fitted with a mouthpiece, a spring-loaded piston, and a small vent for escaping air when ...
Lippitt, M. W., Reed, J. H.
core   +1 more source

On the Second Law of thermodynamics and the piston problem

open access: yes, 2003
The piston problem is investigated in the case where the length of the cylinder is infinite (on both sides) and the ratio $m/M$ is a very small parameter, where $m$ is the mass of one particle of the gaz and $M$ is the mass of the piston.
Annick Lesne   +27 more
core   +2 more sources

Synergistic Effects of Solid Electrolyte Mild Sintering and Lithium Surface Passivation for Enhanced Lithium Metal Cycling in All‐Solid‐State Batteries

open access: yesAdvanced Science, EarlyView.
This study proposes a synergistic strategy combining mild sintering of solid electrolyte pellets with lithium metal surface passivation, effectively suppressing dendrite growth, and enhancing interfacial stability. This approach doubles the critical current density of symmetric cells (1.1 to 2.2 mA cm−2) and extends full cells cycle life at 1 mA cm−2 ...
Jinsong Zhang   +3 more
wiley   +1 more source

Stirling Module Development Overview [PDF]

open access: yes, 1984
The solar parabolic dish Stirling engine electrically generating module consists of a solar collector coupled to a Stirling engine powered electrical generator.
Livingston, F. R.
core   +1 more source

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