Results 91 to 100 of about 68,781 (335)

Evaluating the factors influencing the sustainable refrigerant selection by fuzzy decision making approach

open access: yesJournal of Sustainable Construction Materials and Technologies
Considering that cooling in cooling systems is more costly than heating, the importance of refrigerant selection in cooling systems is even more obvious.
Melike Erdogan   +2 more
doaj   +1 more source

An Investigation of Void Fraction in the Stratified/Annular Flow Regions in Smooth, Horizontal Tubes [PDF]

open access: yes, 1999
Refrigerants R134a and R410A have been used for void fraction measurements in smooth horizontal tubes with diameters between 4mm and 7mm. Quality and mass flux were varied from 5% to 90% and 75 kglm2-s to 700 kglm2-s, respectively.
Chato, J.C.   +5 more
core  

Skin‐Interfaced Therapeutic Patches for Wound Fluid Management and Transdermal Drug Delivery

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents an integrated skin‐interfaced device combining microfluidics, hydrogel film technology, flexible electronics, and iontophoresis‐based transdermal delivery of PDRN to enhance wound healing. The device effectively manages wound fluid, maintains optimal moisture, and non‐invasively delivers therapeutic drugs.
Dongjun Han   +5 more
wiley   +1 more source

Numerical Simulation of Phase Change Cold Storage Heat Exchanger for Liquid Hydrogen Cold Chain Logistics Vehicle

open access: yesZhileng xuebao
A coaxial spiral tube heat exchanger used for the phase change cold storage of liquid hydrogen cold-chain logistics vehicles is proposed. A three-dimensional heat flow coupling numerical analysis model of the heat exchanger was established.
Zu Binjie Liao Quan Gan Junyi
doaj   +2 more sources

Calculation Models of Properties of POE/R32and PVE/R32 and the Properties Analysis

open access: yesZhileng xuebao, 2016
The accurate calculation of thermodynamic properties of refrigerant-oil mixture is the foundation to analyze and evaluate the influence of oil on compressor. Thermodynamic property models of R32/POE and R32/PVE are provided by explicit calculation method
Shi Hongyan, Wu Jianhua
doaj  

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

A New Family of Ternary Intermetallic Compounds with Dualistic Atomic Ordering – The ZIP Phases

open access: yesAdvanced Materials, EarlyView.
The ZIP phases are ternary intermetallic compounds with dualistic atomic ordering, i.e., they exhibit one face‐centered cubic (fcc; space group Fd3¯$\bar 3$m) variant and one hexagonal (space group P63/mmc) variant. The ZIP phases in the Nb‐Si‐Ni system are the Nb3SiNi2 (fcc) and Ni3SiNb2 (hexagonal) ternary IMCs, crystal structure schematics of which ...
Matheus A. Tunes   +24 more
wiley   +1 more source

Vapor-liquid equilibrium data concerning refrigerant systems (R3110+R365mfc) [PDF]

open access: diamond, 2013
Hakim Madanı   +2 more
openalex   +1 more source

The Space Within: How Architected Voids Promote Tissue Formation

open access: yesAdvanced Materials, EarlyView.
This review explores the role of void spaces in tissue engineering scaffolds and examines four key methods for introducing porosity into hydrogels at different scales. It discusses sacrificial templating, microgels, phase separation, and 3D printing, highlighting principles, advantages, and limitations. It also addresses emerging strategies integrating
Anna Puiggalí‐Jou   +3 more
wiley   +1 more source

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