Results 31 to 40 of about 14,661,551 (240)

Situation and prospect on investigation of ferroalloy reduction during steelmaking

open access: yes工程科学学报, 2018
As China steel industry continues to face more prominent overcapacity and environmental pollution problems, reduction of ferroalloy continues to attract more attention as a cost reduction and efficiency improvement method.
BAO Yan-ping, ZHANG Chao-jie, WANG Min
doaj   +1 more source

Orientation effect of arc array horizontal tubes inside a phase change storage unit on melting and solidification characteristics

open access: yesCase Studies in Thermal Engineering
This numerical study examines the phase change material melting and solidification characteristics that are filled inside the shell of different multiple-tube arc array storage units.
Mohamed A. Alnakeeb   +3 more
doaj   +1 more source

Melting Behavior of Nylon 6 Ultra Micro Fibers Having Different Diameters [PDF]

open access: yes, 2003
P(論文)Melting behavior of Nylon 6 ultra micro fibers and micro fibers with 0.4~21.0μm diameters has been inbestigated. Two peaks were observed for the melting of the ultra micro fibers.
12082   +23 more
core  

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Influence of Fin Geometry on Enhancement of Phase Change Material Melting in a Finned Double-Pipe Heat Exchanger

open access: yesEnergies
Low thermal conductivity of phase change materials (PCMs) remains a major limitation in the design of efficient thermal energy storage systems. Enhancing the thermal performance of PCM storage units is therefore a critical design consideration.
Amr Owes Elsayed
doaj   +1 more source

Properties and formation mechanism of rings during rotary kiln reduction of low-grade iron ore

open access: yes工程科学学报, 2018
To ease the imbalance between the supply and demand for iron ore in the ferrous industry of China, a low-temperature reduction process via an ore-coal composite method was developed to recover iron from low-grade iron-ore resources (about 30%).
HUANG Zhu-cheng   +4 more
doaj   +1 more source

Preliminary study of the transition of sea ice during the melting process [PDF]

open access: yes, 2005
P(論文)In order to understand the transition in sea ice, snow transformation, and temperature variations, we carried out tank experiments in a cold room. In the melting experiment of bare ice, the transition of the condition of the ice surface was observed
Enomoto, Hiroyuki   +2 more
core   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

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