Results 71 to 80 of about 70,713 (291)

Study on the extraction kinetics of phenolic compounds from petroleum refinery waste lye

open access: yesJournal of Saudi Chemical Society, 2011
A large amount of waste lye is produced in petroleum refineries during alkali cleaning process, which consists of high concentration of phenols, sulfides, oils and other pollutants. In this study, tributyl phosphate (TBP) was used as extraction agent and
Yanbo Zhou, Feng Gao, Yin Zhao, Jun Lu
doaj   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

open access: yesFEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke   +4 more
wiley   +1 more source

Interfacial Area Transport of Vertical Upward Bubbly Flow in an Annulus

open access: yes, 2002
In relation to the development of the interfacial area transport equation, hydrodynamic separate tests without phase change were performed in an adiabatic air-water bubbly flow in a vertical annulus to identify the effect of bubble coalescence and ...
Situ, Rong   +3 more
core  

Modeling interfacial area transport in multi-fluid systems [PDF]

open access: yes, 1996
Many typical chemical engineering operations are multi-fluid systems. They are carried out in distillation columns (vapor/liquid), liquid-liquid contactors (liquid/liquid) and other similar devices.
Yarbro, Stephen Lee
core  

Identifying gene expression signatures for risk stratification of postoperative adjuvant chemotherapy in colorectal cancer

open access: yesFEBS Open Bio, EarlyView.
A novel signature integrating genome‐wide analysis with clinical factors predicts recurrence in stage II colorectal cancer and enables a new risk stratification to guide postoperative adjuvant chemotherapy. Clinical risk stratification for postoperative recurrence in patients with pathological stage II (pStage II) colorectal cancer (CRC) is essential ...
Mayuko Otomo   +7 more
wiley   +1 more source

Modeling of interfacial area concentration and interfacial momentum transfer: Theoretical and experimental study

open access: yes, 1997
The interfacial transfer terms are important for modeling the dynamic coupling between the phases in a two-fluid formulation. The geometric factor of these transfer terms is recognized by the interfacial area concentration.
Leung, Wai Hung
core  

Preheating-assisted ultrasonic welding of AA 6061: FEM analysis and experimental investigation

open access: yesJournal of Advanced Joining Processes
Ultrasonic welding (USW) is widely employed for assembling aluminum components in lightweight structures and lithium-ion battery systems; however, achieving uniform interfacial bonding remains challenging.
Dinh Le Cao Ky, Le The Truyen
doaj   +1 more source

YIPFα1A expression is regulated by multilayered molecular mechanisms

open access: yesFEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji   +2 more
wiley   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

open access: yesFEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young   +7 more
wiley   +1 more source

Adsorption and Dilational Viscoelasticity of Saponin at the β-Pinene/Water and Air/Water Interfaces

open access: yesColloids and Interfaces
Understanding adsorption and interfacial properties of surface-active agents at interfaces is crucial to the formation and stability of colloidal systems such as emulsions and foams. In this work, interfacial tension and viscoelasticity of saponin at the
Feng Lin
doaj   +1 more source

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