Results 91 to 100 of about 56,107 (310)

Transient Analysis of a Magnetic Heat Pump [PDF]

open access: yes, 1985
An experimental heat pump that uses a rare earth element as the refrigerant is modeled using NASTRAN. The refrigerant is a ferromagnetic metal whose temperature rises when a magnetic field is applied and falls when the magnetic field is removed. The heat
Schroeder, E. A.
core   +1 more source

Solid-liquid equilibria for the dimethyl ether plus carbon dioxide binary system [PDF]

open access: yes, 2010
A recently built experimental setup was employed for the estimation of the solid-liquid equilibria of alternative refrigerants systems. The behavior of dimethyl ether (DME) + carbon dioxide was measured down to temperatures of 131.6 K.
Di Nicola, G.   +3 more
core   +1 more source

Chemically Doped Conductive Polymers for Wearable Health Monitoring

open access: yesAdvanced Materials Technologies, EarlyView.
Among conductive polymers, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), polyaniline (PANI), and polypyrrole (PPy) are the most studied and applied. Chemical doping significantly boosts intrinsic conductivity and mechanical robustness.
Mengdi Zuo   +5 more
wiley   +1 more source

Stable superconducting magnet [PDF]

open access: yes, 1967
Operation of a superconducting magnet is considered. A method is described for; (1) obtaining a relatively high current in a superconducting magnet positioned in a bath of a gas refrigerant; (2) operating a superconducting magnet at a relatively high ...
Boom, R. W.
core   +1 more source

Tunable 3D‐Printed Static Mixers for Gradient Bioprinting With High Cell Viability

open access: yesAdvanced Materials Technologies, EarlyView.
ABSTRACT The fabrication of native tissue‐like structures with gradual transitions in material properties, cell types, and growth factors remains a major challenge in biofabrication due to the lack of suitable methods. Mimicking the hierarchical organization of living tissues is essential for functional models, yet creating gradient, multimaterial ...
Florian Hofmann   +9 more
wiley   +1 more source

Waste Heat Recovery in the Energy-Saving Technology of Stretch Film Production

open access: yesEnergies
The stretch film production is highly energy intensive. The components of the technological line are powered by electrical energy, and the heat is used to change the physical state of the raw material (granules).
Krzysztof Górnicki   +2 more
doaj   +1 more source

Refrigerant Charge Fault Detection and Diagnosis Algorithm for Water-to-Water Heat Pump Unit

open access: yesEnergies, 2019
Refrigerant charge faults have a great adverse effect on the performance of heat pumps and must therefore be detected and diagnosed early in real time. In this study, the effect of refrigerant charge faults on a water-to-water heat pump is experimentally
Samuel Boahen   +2 more
doaj   +1 more source

Investigation of an R134A Refrigerant/Iso 32 Polyol Ester Oil Mixture in Condensation [PDF]

open access: yes, 2001
Air Conditioning and Refrigeration Project ...
Chato, J.C.   +2 more
core  

Experimental Study of Heat Pump Thermodynamic Cycles Using CO 2 Based Mixtures -Methodology and First Results

open access: yes, 2016
The aim of this work is to study heat pump cycles, using CO 2 based mixtures as working fluids. Since adding other chemicals to CO 2 moves the critical point and generally equilibrium lines, it is expected that lower operating pressures as well as higher
Bouteiller, Paul   +2 more
core   +3 more sources

Mengurus masyarakat Singapura gaya Lee Kuan Yew: satu legasi [PDF]

open access: yes, 2020
Lee Kuan Yew (LKY) negarawan unggul Asia Tenggara yang berjaya menggerakkan tindakan-tindakan pragmatik dengan nilai dan gaya kepimpinan berkesan demi mencapai visi pembangunan Singapura. Memiliki pengalaman politik hampir 60 tahun (1955-2011) menjadikan
Jaes, Lutfan   +3 more
core  

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