Results 31 to 40 of about 3,518 (204)

Examining the effect of backward/forward-facing wavy channels on the thermohydraulic performance of a printed circuit heat exchanger under the laminar flow regime

open access: yesInternational Journal of Thermofluids, 2023
The printed circuit heat exchanger (PCHE) has been used in many important engineering applications because of its advantages, including its small size and high efficiency.
Ahmed Oleiwi Samarmad   +1 more
doaj   +1 more source

Numerical Investigation on the Flow and Heat Transfer Characteristics of Supercritical Liquefied Natural Gas in an Airfoil Fin Printed Circuit Heat Exchanger

open access: yesEnergies, 2017
As a new kind of highly compact and efficient micro-channel heat exchanger, the printed circuit heat exchanger (PCHE) is a promising candidate satisfying the heat exchange requirements of liquefied natural gas (LNG) vaporization at low and high pressure.
Zhongchao Zhao   +4 more
doaj   +1 more source

Numerical investigation on flow and heat transfer characteristics of supercritical methane–ethane mixture in a straight channel

open access: yesScience and Technology for Energy Transition, 2022
Printed Circuit Heat Exchanger (PCHE) is considered as a promising heat exchanger for offshore Liquefied Natural Gas (LNG) production due to its compactness and high efficiency.
Wang Yue   +4 more
doaj   +1 more source

Effect of porosity on the performance of PCHE with embedded PCM/EG under fluctuating temperature conditions

open access: yesChemical Engineering Transactions, 2022
The supercritical CO2 Brayton cycle is widely utilized by various industries because of its compactness and efficiency. However, in the actual process, there are always temperature fluctuations that affect the normal operation of the whole supercritical ...
Lianjie Zhang   +4 more
doaj   +1 more source

Numerical Improvement Using Flow and Heat Transfer Calculations of the Zigzag Geometry for Carbon Dioxide PCHEs

open access: yesEnergies, 2022
A printed circuit heat exchanger (PCHE) is an efficient and compact heat exchanger that can work under high temperature and high pressure. For Z-shaped channel PCHEs, the corner structure could enhance heat transfer at the expense of increasing the flow ...
Bo Wang   +3 more
doaj   +1 more source

Watasemycin biosynthesis in Streptomyces venezuelae : thiazoline C-methylation by a type B radical-SAM methylase homologue [PDF]

open access: yes, 2017
2-Hydroxyphenylthiazolines are a family of iron-chelating nonribosomal peptide natural products that function as virulence-conferring siderophores in various Gram-negative bacteria.
Al-Bassam, Mahmoud M.   +6 more
core   +1 more source

PchE Regulation of Escherichia coli O157:H7 Flagella, Controlling the Transition to Host Cell Attachment [PDF]

open access: yesInternational Journal of Molecular Sciences, 2020
Shiga toxins and intimate adhesion controlled by the locus of enterocyte effacement are major enterohemorrhagic Escherichia coli (EHEC) virulence factors. Curli fimbriae also contribute to cell adhesion and are essential biofilm components. The transcriptional regulator PchE represses the expression of curli and their adhesion to HEp-2 cells.
Andreozzi, Uhlich
openaire   +2 more sources

A simple model for the complex lag structure of microquasars [PDF]

open access: yes, 2005
The phase lag structure between the hard and soft X-ray photons observed in GRS 1915+105 and XTE J1550+564 has been said to be ``complex'' because the phase of the Quasi-Periodic Oscillation fundamental Fourier mode changes with time and because the even
Belloni   +8 more
core   +3 more sources

Experimental and numerical study on thermal‐hydraulic performance of printed circuit heat exchanger for liquefied gas vaporization

open access: yesEnergy Science & Engineering, 2020
The thermal‐hydraulic performance of printed circuit heat exchanger (PCHE) through an experimental vaporization process of supercritical nitrogen was investigated.
Zhongchao Zhao   +4 more
doaj   +1 more source

On Resource Pooling and Separation for LRU Caching

open access: yes, 2017
Caching systems using the Least Recently Used (LRU) principle have now become ubiquitous. A fundamental question for these systems is whether the cache space should be pooled together or divided to serve multiple flows of data item requests in order to ...
Ji, Kaiyi   +3 more
core   +1 more source

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