Results 11 to 20 of about 3,518 (204)

Controlled Catalysis Delivering High Molecular Weight Polyesters as Recyclable Alternatives to Polystyrenes. [PDF]

open access: yesAngew Chem Int Ed Engl
This work exemplifies how to make high molar mass ring opening copolymerization (ROCOP) polyesters as engineering plastics, informing upon their thermal and mechanical properties. Leading polyesters, prepared by epoxide/anhydride ROCOP, show high glass transition temperatures and tensile and flexural strengths, matching or exceeding polystyrene ...
Jannsen N   +4 more
europepmc   +3 more sources

Numerical thermal–hydraulic analysis and multiobjective design optimization of a printed circuit heat exchanger with airfoil overlap fin channels

open access: yesEngineering Reports
In this study, we numerically investigated the performance of a printed circuit heat exchanger (PCHE) featuring National Advisory Committee for Aeronautics (NACA) 0020 airfoil overlap fins integrated into its straight flow channels. Numerical simulations
Geng‐Chun Kuo   +2 more
doaj   +2 more sources

TRANSIENT PSEUDOCHOLINESTERASE (PChE) DEFICIENCY IN PREMATURE INFANTS [PDF]

open access: yesPediatric Research, 1984
Approximately 3% of the adult population have a genetic basis for decreased PChE enzyme activity. Levels of PChE activity in healthy term newborns and infants up to 4 months of age have been reported to range from 22-86% of normal adult values. The degree of decreased enzyme activity in premature infants is unknown.
A Strauss, H D Modanlou
openaire   +1 more source

Dual-fluid topology optimization of printed-circuit heat exchanger with low-pumping-power design

open access: yesCase Studies in Thermal Engineering, 2023
This study proposes a novel design for a printed-circuit heat exchanger (PCHE) using a dual-fluid topology optimization method. To account for the three-dimensional (3D) heat transfer phenomena using the two-dimensional (2D) computational domains, three ...
Geunhyeong Lee   +3 more
doaj   +1 more source

Changes in Protein Metabolism and Early Development of Sarcopenia in Mice With Cholestatic Liver Disease. [PDF]

open access: yesJ Cachexia Sarcopenia Muscle
ABSTRACT Background Sarcopenia is a frequent complication of liver cirrhosis. Here, we chose a mouse model of cholestatic liver disease (CLD) to gain mechanistic insights into the development of sarcopenia from the earliest stages of chronic liver injury.
Agrifoglio O   +16 more
europepmc   +2 more sources

Experimental work for the performance of a printed circuit heat exchanger (PCHE) using nitrogen under trans-critical states

open access: yesEnergy Reports, 2022
Experiments were carried out for the manufactured a printed circuit heat exchanger (PCHE) using nitrogen on the super-critical state. For the core of the PCHE, ‘N’ and reverse N, ‘RN’ shape microchannels were etched on stainless steel 316L plates, and ...
Jeong-Heon Shin   +2 more
doaj   +1 more source

Thermal and hydraulic performance of a large scale printed circuit heat exchanger (PCHE)

open access: yesCase Studies in Thermal Engineering, 2022
In present work, a printed circuit heat exchanger (PCHE), which was expected to be capable of heat exchange of 200 kW, was designed and manufactured, and its performance was evaluated by conducting experiments using nitrogen. Microchannels with a semi-circular cross section and a diameter of 2 mm were etched in the form of ‘N’ and ‘reverse N (RN ...
Jeong-Heon Shin, Seok Ho Yoon
openaire   +2 more sources

Process intensification for post combustion CO₂ capture with chemical absorption: a critical review [PDF]

open access: yes, 2015
The concentration of CO₂ in the atmosphere is increasing rapidly. CO₂ emissions may have an impact on global climate change. Effective CO₂ emission abatement strategies such as carbon capture and storage (CCS) are required to combat this trend.
Abanades   +161 more
core   +1 more source

Dual Loop Line-Focusing Solar Power Plants with Supercritical Brayton Power cycles [PDF]

open access: yes, 2006
Most of the deployed commercial line-focusing solar power plants with Parabolic Troughs (PTC) or Linear Fresnel (LF) solar collectors and Rankine power cycles use a Single Loop Solar Field (SF), Configuration 1 illustrated in Fig.
Caroline H van Rhenen-Kersten   +8 more
core   +3 more sources

Analysis of Flow and Heat Transfer Characteristics and Multi-Objective Optimization for Sinusoidal PCHE

open access: yesEnergies, 2023
A Printed Circuit Heat Exchanger (PCHE) is a compact heat exchanger with high temperature and pressure resistance and is considered one of the best choices for the recuperators in the Supercritical Carbon dioxide (S-CO2) Brayton cycle.
Qixuan Hu   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy