Results 11 to 20 of about 839 (259)

The name of the article is Experimental researches of refrigeration machines retrofit to alternative ozone friendly mixed refrigerants power efficiency

open access: yesЮг России: экология, развитие, 2015
The problems of refrigeration equipment transfer from ozone destroying refrigerant R22 to alternative mixed refrigerants are considered in the article. The exergy method is chosen from all possible ways of energy factors comparison.
A. Y. Kuzmin, A. V. Bukin
doaj   +1 more source

Molecular dynamics simulation of non-azeotropic refrigerants separation in auto-cascading refrigeration [PDF]

open access: yesE3S Web of Conferences, 2019
The core problem of auto-cascading refrigeration is the separation of non-azeotropic refrigerants. The separation effect of mixed refrigerant directly determines the refrigeration effect of auto-cascading refrigeration system and the value of COP.
Zheng Dayu   +3 more
doaj   +1 more source

A Comprehensive Assessment of Two-Phase Flow Boiling Heat Transfer in Micro-Fin Tubes Using Pure and Blended Eco-Friendly Refrigerants

open access: yesEnergies, 2023
This review study examines flow boiling heat transfer in micro-fin tubes using mixed and pure refrigerants with zero ozone-depleting potential (ODP) and minimal global warming potential (GWP).
Neeraj Kumar Vidhyarthi   +6 more
doaj   +1 more source

Experimental Study of PVTx Properties about Mixture Refrigerant R1234yf/R32

open access: yesZhileng xuebao, 2016
In order to get the thermophysical properties of mixed refrigerants R1234yf/R134a, the PVT properties of mixture refrigerant R1234yf/R32 with mass fraction 15%/85%, 25%/75% in the range of 253-313 K were measured by using high-precision PVTx apparatus ...
Chen Rishuai, Qi Yingxia, Wu Dong
doaj   +2 more sources

The Experimental Study of PVTx Properties of Near Aeotropic Mixture Refrigerant R290/R134a

open access: yesZhileng xuebao, 2014
In order to get the thermophysical properties of mixed refrigerants R134a/R290, the author built PVTx experimental system with high accuracy. Based on the Burnett method, the author measured the PVT properties of R134a/R290 with mass fraction 50%/50%, 55%
Yang Xi, Qi Yingxia, Chen Wei, Zhang Hua
doaj   +2 more sources

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

open access: yesMolecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen   +11 more
wiley   +1 more source

Screening and epitope characterization of Nidogen‐2‐specific nanobodies

open access: yesFEBS Open Bio, EarlyView.
Camel immunization and phage display were employed to generate high‐affinity VHH nanobodies against Nidogen‐2. After library construction, biopanning, ELISA screening, sequencing, and recombinant expression, selected nanobodies were purified and characterized, leading to the preliminary exploration of a nanobody‐based sandwich ELISA for specific ...
Jianchuan Wen   +9 more
wiley   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Comparative Analysis of Heat Transfer in a Type B LNG Tank Pre-Cooling Process Using Various Refrigerants

open access: yesEnergies
This study presents a comprehensive three-dimensional Computational Fluid Dynamics (CFD) analysis of the pre-cooling process of a Type B LNG tank using various refrigerants, including liquid nitrogen (LN), nitrogen gas (NG), liquefied natural gas (LNG ...
Qiang Sun   +6 more
doaj   +1 more source

3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling   +7 more
wiley   +1 more source

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