Results 11 to 20 of about 5,929 (202)

Thermodynamic Analysis Of Cascade Refrigeration System Using R12-R13, R290-R23 And R404A-R23

open access: yes, 2014
The Montreal protocol and Kyoto protocol underlined the need of substitution of CFC’s and HCFC’s due to their adverse impact on atmospheric ozone layer which protects earth from U.V rays. The CFCs have been entirely ruled out since 1995 and a long-term basis HCFCs must be replaced by 2020.
A. D. Parekh, P. R. Tailor
core   +5 more sources

Study of Water-cooled Auto-cascade Refrigeration Cycle with a Low Temperature of﹣60 ℃

open access: yesZhileng xuebao, 2015
A new water-cooled auto-cascade refrigeration cycle(WACR) using a binary refrigerant mixture is presented, which adopts a condenser-phase separator instead of a condenser and an evaporative separator in traditional auto-cascade refrigeration cycle.
Yang Yongan, Yang Zhao, Liu Bin
doaj   +4 more sources

Comparative Genomic Analysis of the Mutant Rhodotorula mucilaginosa JH-R23 Provides Insight into the High-Yield Carotenoid Mechanism

open access: yesFermentation
In this study, the wild-type Rhodotorula mucilaginosa GDMCC 2.30 and its high carotenoid-producing mutant JH-R23, which was screened from the space mutation breeding treated wild type, were used as materials.
Jingyao Huang, Sujing Yang, Huali Jian
doaj   +2 more sources

Numerical Simulation Of R410A-R23 And R404A-R508B Cascade Refrigeration System

open access: yes, 2010
Capacity and efficiency of any refrigerating system diminish rapidly as the difference between the evaporating and condensing temperature is increased by a reduction in the evaporator temperature. The single stage vapour compression refrigeration system using various refrigerants are limited to an evaporator temperature of -40 0C. Below temperature of -
A. D. Parekh   +2 more
openaire   +3 more sources

Thermodynamic Evaluation of Low-GWP A1 Refrigerants for Ultra-Low Temperature Refrigeration Applications

open access: yesEnergies
Slow market development has caused the lack of low-GWP A1 refrigerants for ultra-low temperature (ULT) refrigeration. Consequently, the high-GWP refrigerant R23 (GWP = 14,600) remains widely used within the ULT sector.
Pau Giménez-Prades   +3 more
doaj   +2 more sources

Precision post-translational modification of PML defines neuroblastoma clinical behaviour. [PDF]

open access: yesClin Transl Med
Promyelocytic leukaemia protein (PML) loss is significantly associated with advanced disease stage, metastasis, relapse, therapy resistance, and poor survival in neuroblastoma. Elevated phosphorylation of PML at S518 promotes PML destabilisation and predicts adverse clinical outcomes. The phosphorylated PML (pPML)/PML ratio provides enhanced prognostic
Mohanvelu S   +6 more
europepmc   +2 more sources

Characterization of a lactiplantibacillus plantarum r23 isolated from arugula by whole-genome sequencing and its bacteriocin production ability [PDF]

open access: yes, 2021
Lactiplantibacillus plantarum is one of the lactic acid bacteria species most used as probiotics and starter cultures in food production. Bacteriocin-producers Lpb. plantarum are also promising natural food preservatives. This study aimed to characterize
Helena Albano   +11 more
core   +1 more source

Comparison of Two Network-Theory-Based Methods for detecting Functional Regions

open access: yesBusiness Systems Research, 2020
Background: Functional regions are abstract, uniformly defined territorial units that form an important basis for many development strategies of a country or a region.
Drobne Samo   +3 more
doaj   +1 more source

Water Accessibility Challenges, and Implications on Children in Rural Border Communities of Oyo-Kwara State, Nigeria

open access: yesStudia Ekonomiczne i Regionalne, 2022
Subject and purpose of the work: This study examined water accessibility challenges, and the implications on children in rural border communities of Nigeria.
Popoola Kehinde Olayinka
doaj   +1 more source

R23. Anonymus Franciscanus [PDF]

open access: yes, 2007
This chapter presents a conversation between a narrator and an auditor. The central theme of the miracles is that they were caused by the Franciscans. The narrator joins the miracle stories to each other, without putting them against each other. The auditor interrupts him sometimes with questions that relate to the theological or doctrinal aspects of ...
openaire   +2 more sources

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