Results 21 to 30 of about 4,171,738 (285)

Contents of black carbon in some surface dusts from Zhejiang Province

open access: yes浙江大学学报. 农业与生命科学版, 2012
To understand the effects of human activity on accumulation of black carbon in surface dusts, 174 of surface dust samples were collected from Zhejiang Province. The surface dust samples were taken from different areas which included indoor in countryside,
HUANG Jia-ming   +3 more
doaj   +1 more source

Effect of carbon black content on the microwave absorbing properties of CB/epoxy composites [PDF]

open access: yesJournal of Nanostructures, 2016
To prevent serious electromagnetic interference, a single-layer and double layer wave-absorbing coating employing complex absorbents composed of carbon black with epoxy resin as matrix was prepared. The morphologies of carbon black /epoxy composites were
Pourya Mehdizadeh, Hasan Jahangiri
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Source-sink processes of marine black carbon in the context of "carbon neutrality"

open access: yes地质科技通报
Objective Black carbon is a carbonaceous mixture formed by the incomplete combustion of biomass and fossil fuels. Since black carbon has a high carbon content and an aromatized molecular structure, it can persist in the natural environment, suggesting ...
Cuimei XIA   +5 more
doaj   +1 more source

Dissolved black carbon in Antarctic lakes: Chemical signatures of past and present sources

open access: yesGeophysical Research Letters, 2016
The perennially ice‐covered, closed‐basin lakes in the McMurdo Dry Valleys, Antarctica, serve as sentinels for understanding the fate of dissolved black carbon from glacial sources in aquatic ecosystems.
Alia L. Khan   +3 more
doaj   +1 more source

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

open access: yesFEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

Microstructure and tensile properties of magnesium nanocomposites fabricated using magnesium chips and carbon black

open access: yesJournal of Magnesium and Alloys, 2020
In this study, carbon black (0, 0.01, 0.03 and 0.08 wt%) and AZ31 (Mg–3Al–1Zn) magnesium chips were used to fabricate carbon black-reinforced magnesium matrix composites with extrusion or a combination of extrusion and high-ratio differential speed ...
T.J. Lee, W.J. Kim
doaj   +1 more source

Production of Carbon Black in Turbulent Spray Flames of Coal Tar Distillates

open access: yesApplied Sciences, 2021
Conventional carbon black production occurs by pyrolysis after heavy aromatic feedstock is injected into the post-combustor region of furnace black reactors. The current work examines the conversion of the coal tar distillate in turbulent spray flames to
Helena Rodriguez-Fernandez   +3 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

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