Results 21 to 30 of about 912,950 (273)
Multivariate experimental study on soybean urease induced calcium carbonate precipitation
Rock and Soil Mechanics, 2022 The plant-derived enzyme induced calcium carbonate precipitation (EICP) can significantly improve the engineering mechanical properties of sand. However, there is no specification for choosing the parameter value in the specific operation, and the ...
CUI Meng +6 more
doaj +1 more source
MetalsThis study addresses the challenge of achieving efficient separation of vanadium and chromium from vanadium–chromium slag (VCS) while simultaneously tackling issues related to artificial granite waste residue (AGWR), such as its substantial stockpiling ...
Xiaoxin Xuan +4 more
doaj +1 more source
Calcium carbonate synthesis with prescribed properties based on liquid waste of soda production
Trudy Odesskogo Politehničeskogo Universiteta, 2016 A promising direction in solving of environmental problems of soda industry is the development of low-waste resource-saving technologies, which consist in recycling of valuable waste components with obtaining the commercial products.
Євгенія Олександрівна Михайлова +2 more
doaj +7 more sources
Kuangchan zonghe liyongThe main occurrence minerals of vanadium include vanadium titanomagnetite, stone coal vanadium and vanadium lead ores. At present, the vanadium extraction processes of stone coal vanadium ore are mainly sodium roasting-water leaching and calcification ...
Jinwei QU +4 more
doaj +1 more source
Laboratory Models of Microbial Biosignatures in Carbonate Rocks [PDF]
, 2005 Enigmatically shaped laminated carbonate rocks called stromatolites dominated shallow marine environments for the first 80% of Earth’s history, and are potentially the oldest macrofossils.
Bosak, Tanja
core +1 more source
MoleculesAlN, with its ultra-wide bandgap, is highly attractive for modern applications in deep ultraviolet light-emitting diodes and electronic devices. In this study, the surface and cross-sectional properties of AlN films grown on flat and nano-patterned ...
Wenwang Wei +4 more
doaj +1 more source
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS 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
The influence of type of calcium carbonate fillers on the performance AKD and mechanical properties of printing and writing paper [PDF]
Iranian Journal of Wood and Paper Industries, 2016 This study aimed at evaluating effect of sizing agent and various fillers on properties of printing and writing paper. Therefore, sizing agent (AKD) in 1.5% level and fillers including precipitated calcium carbonate (PCC), ground calcium carbonate (GCC ...
mohammad taghi manghuli +3 more
doaj
Use of eggshells as a raw material for production of calcium preparations
Czech Journal of Food Sciences, 2016 The kinetics of calcium release from tablets obtained from modified eggshells in the form of calcium citrate and calcium carbonate was investigated. Calcium release showed the first-order kinetics.
Barbara Dolińska +3 more
doaj +1 more source
FEBS 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