Results 111 to 120 of about 217,218 (308)

Intube two-phase flow probabilities based on capacitance signal clustering [PDF]

open access: yes, 2009
To study the objectivity in flow pattern mapping of horizontal two-phase flow in macroscale tubes, a capacitance sensor is developed for use with refrigerants. Sensor signals are gathered with R410A in an 8mm I.D.
Canière, Hugo   +2 more
core   +1 more source

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

open access: yesAdvanced Materials Technologies, EarlyView.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt   +11 more
wiley   +1 more source

High‐Throughput Screening of REBCO Superconducting Thin Films Fabricated Via Combinatorial Inkjet Printing and TLAG Process

open access: yesAdvanced Materials Technologies, EarlyView.
A methodological framework is presented for combinatorial REBCO thin films fabricated by drop‐on‐demand inkjet printing with controlled Rare Earth composition gradients. Automated, synchrotron‐based, and local characterization techniques produce comprehensive property maps that correlate composition and TLAG process parameters with superconducting ...
Emma Ghiara   +15 more
wiley   +1 more source

Boiling of Subcooled Liquid in a Flat Minichannel with a Graphene Coating [PDF]

open access: yesProblems of the Regional Energetics
Boiling occurs in many energy technologies, including thermal stabilization systems, where heat is removed from the wall due to the latent heat of vaporization of the coolant. Applying coatings to the heat-generating surface is one of the ways to enhance
Kochkin D.Yu.   +3 more
doaj   +1 more source

Thermal effects in two-phase flow through face seals [PDF]

open access: yes
When liquid is sealed at high temperature, it flashes inside the seal due to pressure drop and/or viscous heat dissipation. Two-phase seals generally exhibit more erratic behavior than their single phase counterparts.
Basu, Prithwish
core   +1 more source

Graphene‐Based Wearable Textile Triboelectric Nanogenerators and Biomechanical Sensors

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents a wearable textile‐based triboelectric nanogenerator (T‐TENG) using sprayed graphene enhanced with a PVA adhesion layer. The graphene‐based electrode demonstrates high electrical conductivity and robustness to multiple bends. The fabricated T‐TENG provides stable and efficient output, with strong responsiveness to biomotion.
Hongyang Dang   +4 more
wiley   +1 more source

Flow boiling with enhancement devices for cold plate coolant channel design [PDF]

open access: yes
The use of flow boiling for thermal energy transport is intended to provide an alternative for accommodating higher heat fluxes in commercial space systems.
Boyd, Ronald D., Sr., Smith, Alvin
core   +1 more source

Type of Critical Heat Flux for Downward Flow in a Vertical Tube [PDF]

open access: yes, 2014
CHF characteristics of downward flow are quite different from that of upward flow due to complicated two-phase flow structure caused by the influence of buoyancy.
Ami Takeyuki   +13 more
core   +1 more source

Linking Device Performance to Nanoscale Photoactivation of Grain Boundaries in 2D Hybrid Halide Perovskites

open access: yesAdvanced Materials Technologies, EarlyView.
The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni   +10 more
wiley   +1 more source

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

open access: yesAdvanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds   +2 more
wiley   +1 more source

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