Results 71 to 80 of about 264,410 (164)

Regional early Cambrian euxinia coupled with massive barite and witherite deposition on the Yangtze Block

open access: yesCommunications Earth & Environment
Fluctuations in marine redox conditions on the Yangtze Block, recorded by widespread black shales, critically influenced local biological habitability during the early Cambrian.
Peng Yuan   +6 more
doaj   +1 more source

Monodisperse Sols of Barium Sulfate. I. Preparation of Stable Sols [PDF]

open access: yes, 1966
Monodisperse sols of barium sulfate were prepared by a modified method of homogeneous precipitation and characterized by electron microscopy. The particles were spindle-shaped and of a rather uniform distribution when prepared with concentrations of ...
Deželić, Gj.   +5 more
core   +1 more source

The Performance of Barium Sulfate/Nature Rubber Composites Using in Sport Shoes

open access: yes, 2010
Modified barium sulfate (MBS) /nature rubber(NR) composite materials were prepared by direct blending methods. Barium sulfate was modified by coupling agent Si-69, titanium esters and stearic acid.
Ji Hu Wang   +3 more
core   +1 more source

Valorization of Grass Clipping Waste: A Sustainable Approach to Cellulose Extraction and Paper Manufacturing

open access: yesApplied Sciences
This study investigates the physical, mechanical, and structural characteristics of handmade paper samples derived from cellulose extracted from grass clippings using two distinct methods as follows: (1) alkali treatment and (2) alkali treatment followed
Azamat Taurbekov   +8 more
doaj   +1 more source

Barium sulfate and pigment admixture for photoacoustic and x-ray contrast imaging of the gut. [PDF]

open access: yesJ Biomed Opt, 2023
Kilian HI   +8 more
europepmc   +1 more source

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