Results 71 to 80 of about 47,254 (254)

Quantum Field Thermal Machines

PRX Quantum, 2021
Recent years have enjoyed an overwhelming interest in quantum thermodynamics, a field of research aimed at understanding thermodynamic tasks performed in the quantum regime.
Marek Gluza, João Sabino, Nelly H.Y. Ng, Giuseppe Vitagliano, Marco Pezzutto, Yasser Omar, Igor Mazets, Marcus Huber, Jörg Schmiedmayer, Jens Eisert   +9 more
doaj   +1 more source

Assessment of the necessity of cooling of the Stirling engine expansion piston [PDF]

, 2009
Heat balance of the Stirling engine expansion piston is investigated. This balance considers heat flows that are applied to the expansion piston from outside parts, generated by friction in the piston-liner contact zone, and rejected to the cooling ...
Stefanovsky, A. B.
core  

Phase‐Change Alloys Enable Localized Reversible Stiffening and Actuation in Steerable Eversion Tip‐Growing Robots

Advanced Intelligent Systems, EarlyView.
This work presents a tip‐growing eversion robot that uses phase‐changing alloys for reversible stiffening and localized actuation, achieving 43× stiffness modulation, 15× force amplification, and segmental steering. The system enables precise navigation and force delivery in constrained, tortuous pathways.
Shamsa Al Harthy, S.M.Hadi Sadati, Shannon C. Stockdale, Radhouene Neji, Christos Bergeles   +4 more
wiley   +1 more source

Recent Advances in Design of Low Cost Film Concentrator and Low Pressure Free Piston Stirling Engines for Solar Power [PDF]

, 1984
The free piston Stirling-linear alternator was shown to be scalable to power levels of tens of kilowatts in a form which is simple, efficient, long lived and relatively inexpensive.
Beale, W., Kleinwaechter, H., Kleinwaechter, J.   +2 more
core   +1 more source

Real-time diagnostics of gas/water assisted injection moulding using integrated ultrasonic sensors [PDF]

, 2007
YesAn ultrasound sensor system has been applied to the mould of both the water and gas assisted injection moulding processes. The mould has a cavity wall mounted pressure sensor and instrumentation to monitor the injection moulding machine.
Brown E. C., C. C. Cheng, C. K. Jen, E. C. Brown, Eckardt H., Kobayashi M., L. Mulvaney-Johnson, P. D. Coates, Pearson T., Piché L., Selfridge A. R., Thomas C. L., Thomas C. L., Thomas C. L., Wen S.-S. L., Y. Ono, Yang S. Y., Zhao J.   +17 more
core   +1 more source

3D Hydrogel Cell Cultures and Their Biomedical Applications

Advanced NanoBiomed Research, EarlyView.
The review highlights the advantages of hydrogel‐based 3D cell cultures over traditional 2D models. These hydrogels closely mimic natural cellular environments, improving research in tissue engineering, drug discovery, cancer studies, and neuroscience.
Tri Lan Thai, Arushi Manchanda, Sarah L. Higginbottom, Estrella Sanz Rodriguez, Richard Wilson, Eva Tomaskovic‐Crook, Jeremy M. Crook, Brett Paull   +7 more
wiley   +1 more source

Analysis of the effect of cylinder wall thickness on the characteristics of a single-stage long-stroke refrigerating compressor [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
The article examines thermodynamic characteristics of a single-stage, low-speed, long-stroke piston refrigeration compressor with a linear drive. Theoretical studies are conducted using a method for calculating the actual operating process of a single ...
V. L. Yusha, S. S. Busarov, A. V. Grekhnev   +2 more
doaj   +1 more source

Structural Aspects of Lithium‐Ion Conduction in the Phosphidotitanate Li8TiP4 and Its Comparison With Li7+5xTa1−xP4 and Li8−xTi1−xTaxP4

Chemistry – A European Journal, EarlyView.
ABSTRACT The chemical system Li/Ti/P has previously been subject to intensive investigation. However, reliable structural data for the reported phases have remained elusive. Motivated by the growing interest in phosphorus‐based lithium‐ion conductors, we have reinvestigated the synthesis, crystal structure, and physical properties of Li8TiP4.
David Müller, Tobias Kutsch, Sabine Zeitz, Viktor Hlukhyy, Gabriele Raudaschl‐Sieber, Wilhelm Klein, Thomas F. Fässler   +6 more
wiley   +1 more source

TECHNOLOGICAL PECULIARITIES OF PRODUCTION OF PISTONS FOR HIGH-POWERED ENGINES

Литьë и металлургия, 2009
The paper present the results obtained when investigating fabrication of castings for pistons of high-augmented diesel internal combustion engine. The optimum casting parameter ranges are determined.
M. A. Sadoha, A. T. Volochko, V. V. Ovchinnikov   +2 more
doaj  

Experimental study of the features of the working processes of low-speed intensively cooled long-stroke piston compressor stages [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
Unique elements of the working processes of a low-speed piston compressor, not typical for high-speed piston machines, are considered. It has been experimentally proven that under operating modes with an elevated gas temperature at the inlet of a low ...
S. S. Busarov, A. V. Nedovenchany, R. E. Kobylskiy, I. S. Busarov   +3 more
doaj   +1 more source